/* roulang page: index */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition);
        }
        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--tt-section-padding);
        }
        .section-pad-sm {
            padding: 56px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }
        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }
        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }
        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }
        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }
        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }
        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }
        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }
        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }

        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }
        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }

        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }
        .tt-chip.active {
            background-color: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
            font-weight: 600;
        }

        .tt-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            background: #EAF2EF;
            color: var(--tt-green);
        }
        .tt-tag-gold {
            background: #F5EDDF;
            color: var(--tt-gold-dark);
        }
        .tt-tag-dark {
            background: #3A3D3F;
            color: #E8E4DA;
        }

        /* ========== HEADER NAV ========== */
        .tt-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--tt-border);
            min-height: 68px;
            display: flex;
            align-items: center;
        }
        .tt-header .navbar {
            padding: 0;
            width: 100%;
        }
        .tt-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--tt-green-dark);
            letter-spacing: 0.02em;
        }
        .tt-header .navbar-brand:hover {
            color: var(--tt-green);
        }
        .tt-brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--tt-green);
            color: #FFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all 0.2s ease;
            letter-spacing: 0.01em;
        }
        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background: #F5F3EE;
        }
        .tt-header .nav-link.active {
            color: var(--tt-green-dark);
            font-weight: 600;
            background: #EAF2EF;
        }
        .tt-header .navbar-toggler {
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 20px;
            color: var(--tt-text);
        }
        .tt-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.12);
        }
        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .tt-header-search {
            position: relative;
        }
        .tt-header-search input {
            padding: 8px 16px 8px 36px;
            font-size: 14px;
            border: 1px solid var(--tt-border);
            border-radius: 50px;
            width: 180px;
            transition: all 0.25s ease;
            font-family: var(--tt-font);
            background-color: #FAF9F7;
        }
        .tt-header-search input:focus {
            outline: none;
            border-color: var(--tt-green);
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.1);
            width: 220px;
            background: #FFF;
        }
        .tt-header-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 13px;
            color: #8A8F86;
        }
        @media (max-width: 991.98px) {
            .tt-header-actions {
                display: none;
            }
            .tt-header .navbar-collapse {
                background: #FFF;
                padding: 16px 0;
                border-top: 1px solid var(--tt-border);
                margin-top: 8px;
            }
            .tt-header .nav-link {
                padding: 12px 16px !important;
                border-radius: 8px;
            }
            .tt-header {
                min-height: 64px;
            }
        }

        /* ========== HERO MAP STYLE ========== */
        .tt-hero {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            background: var(--tt-green-dark);
            padding: 60px 0 48px;
            overflow: hidden;
        }
        .tt-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/d6c6b38f4d037282.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }
        .tt-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 53, 44, 0.65) 0%, rgba(20, 53, 44, 0.88) 100%);
        }
        .tt-hero .container {
            position: relative;
            z-index: 2;
        }
        .tt-region-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .tt-region-tag {
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.12);
            color: #F0EDE5;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.2s ease;
            backdrop-filter: blur(4px);
        }
        .tt-region-tag:hover {
            background: rgba(201, 164, 92, 0.25);
            border-color: var(--tt-gold);
            color: #FFF;
        }
        .tt-region-tag.hot {
            background: rgba(201, 164, 92, 0.3);
            border-color: var(--tt-gold);
            color: #FFF;
        }
        .tt-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: #FFFFFF;
            letter-spacing: 0.01em;
            max-width: 720px;
            margin-bottom: 20px;
        }
        .tt-hero h1 .highlight {
            color: var(--tt-gold);
        }
        .tt-hero-desc {
            font-size: 17px;
            color: #E0DCD2;
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 32px;
        }
        .tt-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .tt-hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }
        .tt-hero-stat {
            display: flex;
            flex-direction: column;
        }
        .tt-hero-stat .num {
            font-size: 30px;
            font-weight: 800;
            color: var(--tt-gold);
            line-height: 1.2;
        }
        .tt-hero-stat .lbl {
            font-size: 13px;
            color: #B8B4AB;
        }
        .tt-hero-nearby {
            margin-top: 44px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }
        .tt-hero-nearby-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--tt-gold);
            letter-spacing: 0.06em;
            margin-bottom: 14px;
        }
        .tt-nearby-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tt-nearby-item {
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 500;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: #E8E4DA;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all 0.2s ease;
        }
        .tt-nearby-item:hover {
            background: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
        }
        .tt-nearby-item strong {
            font-weight: 700;
            color: #FFF;
        }
        .tt-nearby-item:hover strong {
            color: var(--tt-green-dark);
        }
        @media (max-width: 767.98px) {
            .tt-hero {
                min-height: auto;
                padding: 40px 0 32px;
            }
            .tt-hero h1 {
                font-size: 30px;
            }
            .tt-hero-desc {
                font-size: 15px;
            }
            .tt-hero-stats {
                gap: 20px;
            }
            .tt-hero-stat .num {
                font-size: 24px;
            }
            .tt-region-tags {
                margin-bottom: 20px;
            }
        }

        /* ========== PILL NAV ========== */
        .tt-pill-section {
            padding: 20px 0;
            background: #FFFFFF;
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-pill-scroll {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding: 4px 0;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .tt-pill-scroll::-webkit-scrollbar {
            display: none;
        }
        .tt-pill-scroll .tt-chip {
            flex-shrink: 0;
            padding: 10px 22px;
            font-size: 14px;
        }

        /* ========== PROBLEM STATEMENT ========== */
        .tt-problem {
            background: var(--tt-bg);
        }
        .tt-problem-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .tt-problem-visual {
            position: relative;
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            box-shadow: var(--tt-shadow-md);
            min-height: 320px;
            background-image: url('/assets/images/8036034966d7516c.webp');
            background-size: cover;
            background-position: center;
        }
        .tt-problem-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 77, 62, 0.4), rgba(28, 30, 32, 0.6));
        }
        .tt-problem-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-problem-list li {
            padding: 16px 0;
            border-bottom: 1px solid var(--tt-border);
            font-size: 15px;
            color: var(--tt-text-secondary);
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .tt-problem-list li i {
            color: var(--tt-gold-dark);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .tt-problem-list li strong {
            color: var(--tt-text);
            font-weight: 600;
        }
        @media (max-width: 767.98px) {
            .tt-problem-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .tt-problem-visual {
                min-height: 240px;
            }
        }

        /* ========== DEMO / OPERATION ========== */
        .tt-demo {
            background: #FFFFFF;
        }
        .tt-demo-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .tt-demo-step {
            text-align: center;
            padding: 32px 20px;
            background: var(--tt-bg);
            border-radius: var(--tt-radius-lg);
            border: 1px solid var(--tt-border);
            transition: all var(--tt-transition);
        }
        .tt-demo-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-demo-step .step-num {
            width: 44px;
            height: 44px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: var(--tt-green);
            color: #FFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
        }
        .tt-demo-step h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--tt-text);
        }
        .tt-demo-step p {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        @media (max-width: 991.98px) {
            .tt-demo-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-demo-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ========== RESULT PREVIEW ========== */
        .tt-result {
            background: var(--tt-dark);
            color: #E8E4DA;
        }
        .tt-result .section-title {
            color: #FFFFFF;
        }
        .tt-result .section-desc {
            color: #B8B4AB;
        }
        .tt-result-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .tt-result-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .tt-result-card {
            background: var(--tt-dark-2);
            border: 1px solid #3A3D3F;
            border-radius: var(--tt-radius-md);
            padding: 20px;
            transition: all var(--tt-transition);
        }
        .tt-result-card:hover {
            border-color: var(--tt-gold);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
        }
        .tt-result-card .rc-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--tt-gold);
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }
        .tt-result-card .rc-value {
            font-size: 26px;
            font-weight: 800;
            color: #FFF;
            line-height: 1.3;
        }
        .tt-result-card .rc-sub {
            font-size: 13px;
            color: #9E9A90;
            margin-top: 6px;
        }
        .tt-result-visual {
            background: var(--tt-dark-2);
            border-radius: var(--tt-radius-lg);
            padding: 24px;
            border: 1px solid #3A3D3F;
        }
        .tt-bar-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .tt-bar-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .tt-bar-item .bar-label {
            width: 80px;
            font-size: 13px;
            color: #B8B4AB;
            flex-shrink: 0;
        }
        .tt-bar-item .bar-track {
            flex: 1;
            height: 10px;
            background: #3A3D3F;
            border-radius: 50px;
            overflow: hidden;
        }
        .tt-bar-item .bar-fill {
            height: 100%;
            border-radius: 50px;
            background: linear-gradient(90deg, var(--tt-gold-dark), var(--tt-gold));
            width: 0;
            transition: width 1s ease;
        }
        .tt-bar-item .bar-pct {
            width: 48px;
            text-align: right;
            font-size: 14px;
            font-weight: 700;
            color: var(--tt-gold);
            flex-shrink: 0;
        }
        @media (max-width: 991.98px) {
            .tt-result-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-result-cards {
                grid-template-columns: 1fr;
            }
            .tt-bar-item .bar-label {
                width: 64px;
            }
        }

        /* ========== PAIN POINTS ========== */
        .tt-pain {
            background: var(--tt-bg);
        }
        .tt-pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tt-pain-card {
            background: #FFFFFF;
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            padding: 28px 24px;
            transition: all var(--tt-transition);
        }
        .tt-pain-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: #F5EDDF;
            color: var(--tt-gold-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .tt-pain-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 10px;
        }
        .tt-pain-card p {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        @media (max-width: 991.98px) {
            .tt-pain-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-pain-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== SUCCESS PATH ========== */
        .tt-success {
            background: #FFFFFF;
        }
        .tt-success-path {
            display: flex;
            gap: 0;
            align-items: stretch;
            position: relative;
        }
        .tt-success-path::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: var(--tt-border);
            z-index: 0;
        }
        .tt-path-item {
            flex: 1;
            text-align: center;
            padding: 0 16px;
            position: relative;
            z-index: 1;
        }
        .tt-path-dot {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 2px solid var(--tt-green);
            color: var(--tt-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            transition: all 0.25s ease;
        }
        .tt-path-item:hover .tt-path-dot {
            background: var(--tt-green);
            color: #FFF;
            transform: scale(1.05);
        }
        .tt-path-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 8px;
        }
        .tt-path-item p {
            font-size: 13px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        @media (max-width: 767.98px) {
            .tt-success-path {
                flex-direction: column;
                gap: 24px;
            }
            .tt-success-path::before {
                display: none;
            }
            .tt-path-item {
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
            }
            .tt-path-dot {
                margin: 0;
                flex-shrink: 0;
            }
        }

        /* ========== NEWS LIST ========== */
        .tt-news {
            background: var(--tt-bg);
        }
        .tt-news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .tt-news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #FFFFFF;
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-md);
            padding: 18px 20px;
            transition: all var(--tt-transition);
        }
        .tt-news-item:hover {
            border-color: #D5D0C4;
            box-shadow: var(--tt-shadow-sm);
            transform: translateX(4px);
        }
        .tt-news-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--tt-gold-dark);
            min-width: 80px;
            flex-shrink: 0;
        }
        .tt-news-content {
            flex: 1;
        }
        .tt-news-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 4px;
        }
        .tt-news-content p {
            font-size: 13px;
            color: var(--tt-text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        .tt-news-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--tt-green);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        @media (max-width: 575.98px) {
            .tt-news-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .tt-news-date {
                min-width: auto;
            }
            .tt-news-more {
                display: none;
            }
        }

        /* ========== BRAND INTRO ========== */
        .tt-brand-intro {
            background: #FFFFFF;
        }
        .tt-brand-intro .brand-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--tt-text-secondary);
            max-width: 820px;
            margin: 0 auto;
            text-align: left;
        }
        .tt-brand-intro .brand-text strong {
            color: var(--tt-text);
        }
        .tt-brand-highlight {
            display: inline-block;
            background: #EAF2EF;
            color: var(--tt-green-dark);
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 4px;
        }

        /* ========== SERVICE MATRIX ========== */
        .tt-service {
            background: var(--tt-bg);
        }
        .tt-service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tt-service-card {
            background: #FFFFFF;
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            padding: 32px 28px;
            transition: all var(--tt-transition);
            position: relative;
            overflow: hidden;
        }
        .tt-service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--tt-gold);
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .tt-service-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-service-card:hover::before {
            opacity: 1;
        }
        .tt-service-card .svc-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: #EAF2EF;
            color: var(--tt-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }
        .tt-service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 10px;
        }
        .tt-service-card p {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.75;
            margin: 0;
        }
        @media (max-width: 991.98px) {
            .tt-service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STATS BAR ========== */
        .tt-stats {
            background: var(--tt-green-dark);
            color: #FFF;
            padding: 48px 0;
        }
        .tt-stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
            text-align: center;
        }
        .tt-stat-item .stat-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--tt-gold);
            line-height: 1.2;
        }
        .tt-stat-item .stat-lbl {
            font-size: 14px;
            color: #C4C0B6;
            margin-top: 4px;
        }
        @media (max-width: 991.98px) {
            .tt-stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .tt-stat-item .stat-num {
                font-size: 28px;
            }
        }

        /* ========== CASE WALL ========== */
        .tt-cases {
            background: #FFFFFF;
        }
        .tt-case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tt-case-card {
            background: #FFFFFF;
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
        }
        .tt-case-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-case-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .tt-case-img .case-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            font-size: 11px;
            font-weight: 700;
            border-radius: 50px;
            background: var(--tt-gold);
            color: var(--tt-green-dark);
        }
        .tt-case-body {
            padding: 18px 20px;
        }
        .tt-case-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 8px;
        }
        .tt-case-body p {
            font-size: 13px;
            color: var(--tt-text-secondary);
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .tt-case-meta {
            display: flex;
            gap: 16px;
            font-size: 12px;
            color: #8A8F86;
        }
        @media (max-width: 991.98px) {
            .tt-case-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-case-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== TOPICS ========== */
        .tt-topics {
            background: var(--tt-bg);
        }
        .tt-topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .tt-topic-card {
            background: #FFFFFF;
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-md);
            overflow: hidden;
            transition: all var(--tt-transition);
            cursor: pointer;
        }
        .tt-topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-topic-card .topic-img {
            height: 140px;
            background-size: cover;
            background-position: center;
        }
        .tt-topic-card .topic-body {
            padding: 16px 18px;
        }
        .tt-topic-card .topic-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 4px;
        }
        .tt-topic-card .topic-body p {
            font-size: 13px;
            color: var(--tt-text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 991.98px) {
            .tt-topics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-topics-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== PARTNERS ========== */
        .tt-partners {
            background: #FFFFFF;
            padding: 48px 0;
        }
        .tt-partners-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            justify-content: center;
        }
        .tt-partner-item {
            font-size: 15px;
            font-weight: 600;
            color: #A0A39A;
            letter-spacing: 0.04em;
            padding: 12px 20px;
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            transition: all 0.2s ease;
        }
        .tt-partner-item:hover {
            color: var(--tt-green);
            border-color: var(--tt-green);
        }

        /* ========== SAFETY / TRUST ========== */
        .tt-trust {
            background: var(--tt-dark);
            color: #E8E4DA;
        }
        .tt-trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .tt-trust-item {
            text-align: center;
            padding: 20px;
        }
        .tt-trust-item i {
            font-size: 28px;
            color: var(--tt-gold);
            margin-bottom: 12px;
        }
        .tt-trust-item h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FFF;
            margin-bottom: 6px;
        }
        .tt-trust-item p {
            font-size: 13px;
            color: #B8B4AB;
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 767.98px) {
            .tt-trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-trust-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .tt-faq {
            background: var(--tt-bg);
        }
        .tt-faq .accordion-item {
            background: #FFFFFF;
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .tt-faq .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--tt-text);
            background: #FFFFFF;
            padding: 16px 20px;
            box-shadow: none !important;
            border-radius: var(--tt-radius-md) !important;
        }
        .tt-faq .accordion-button:not(.collapsed) {
            background: #F5F3EE;
            color: var(--tt-green-dark);
            box-shadow: none !important;
        }
        .tt-faq .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.12) !important;
        }
        .tt-faq .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231A4D3E'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .tt-faq .accordion-body {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.75;
            padding: 16px 20px;
        }

        /* ========== CTA / START ========== */
        .tt-cta {
            background: linear-gradient(135deg, var(--tt-green-dark), var(--tt-green));
            color: #FFF;
            padding: 64px 0;
        }
        .tt-cta-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--tt-radius-lg);
            padding: 40px 36px;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .tt-cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 12px;
        }
        .tt-cta-card p {
            font-size: 15px;
            color: #D8D4C8;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .tt-cta-card .tt-btn {
            font-size: 16px;
            padding: 13px 32px;
        }

        /* ========== FOOTER ========== */
        .tt-footer {
            background: var(--tt-dark);
            color: #B8B4AB;
            padding: 56px 0 24px;
        }
        .tt-footer-gird {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .tt-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #FFF;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .tt-footer .footer-brand .tt-brand-icon {
            width: 32px;
            height: 32px;
            font-size: 14px;
        }
        .tt-footer .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: #9E9A90;
            max-width: 280px;
        }
        .tt-footer h6 {
            font-size: 15px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 16px;
        }
        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-footer ul li {
            margin-bottom: 8px;
        }
        .tt-footer ul li a {
            font-size: 13px;
            color: #B8B4AB;
            transition: color 0.2s ease;
        }
        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }
        .tt-footer-bottom {
            border-top: 1px solid #3A3D3F;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #8A8F86;
        }
        .tt-footer-bottom a {
            color: #B8B4AB;
            font-size: 12px;
        }
        .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }
        @media (max-width: 767.98px) {
            .tt-footer-gird {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-footer-gird {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .tt-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ========== SCROLL ANIMATION ========== */
        .anim-fade-up {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .anim-fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== RESPONSIVE FINE-TUNE ========== */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 960px;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 991.98px) {
            .container {
                max-width: 720px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .tt-hero h1 {
                font-size: 36px;
            }
        }
        @media (max-width: 767.98px) {
            .container {
                max-width: 100%;
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-title {
                font-size: 20px;
            }
            .tt-hero h1 {
                font-size: 28px;
            }
            .tt-hero-desc {
                font-size: 15px;
            }
        }
        @media (max-width: 575.98px) {
            .section-title {
                font-size: 19px;
            }
            .tt-hero h1 {
                font-size: 24px;
            }
            .tt-hero-desc {
                font-size: 14px;
            }
            .tt-btn {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
            --tt-header-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
            padding-top: var(--tt-header-height);
        }

        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition), background-color var(--tt-transition);
        }
        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--tt-section-padding);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }
        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* Buttons */
        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }
        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }
        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }
        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }
        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }
        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }
        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }
        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }

        /* Cards */
        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }
        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }

        /* Chips */
        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
            background-color: #F0F5F2;
        }
        .tt-chip.active {
            background-color: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
            font-weight: 600;
        }

        /* Header / Nav */
        .tt-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--tt-border);
            height: var(--tt-header-height);
            display: flex;
            align-items: center;
        }
        .tt-header .navbar {
            width: 100%;
            padding: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--tt-green-dark);
            letter-spacing: 0.02em;
            padding: 0;
        }
        .navbar-brand:hover {
            color: var(--tt-green);
        }
        .tt-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--tt-green);
            color: var(--tt-gold);
            border-radius: 10px;
            font-size: 17px;
        }
        .tt-header .navbar-nav {
            gap: 4px;
        }
        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all 0.2s ease;
        }
        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background-color: #F0F5F2;
        }
        .tt-header .nav-link.active {
            color: var(--tt-green);
            background-color: #EAF2EF;
            font-weight: 600;
        }
        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .tt-header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--tt-bg);
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 6px 12px;
            min-width: 200px;
        }
        .tt-header-search i {
            color: var(--tt-text-secondary);
            font-size: 13px;
        }
        .tt-header-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 13px;
            color: var(--tt-text);
            width: 100%;
            font-family: var(--tt-font);
        }
        .tt-header-search input::placeholder {
            color: #A8A89E;
        }
        .tt-header-search:focus-within {
            border-color: var(--tt-green);
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.12);
        }
        .navbar-toggler {
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 8px 10px;
            font-size: 18px;
            color: var(--tt-green);
            background: var(--tt-surface);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--tt-green);
        }

        /* Breadcrumb */
        .tt-breadcrumb {
            padding: 16px 0 0;
            font-size: 13px;
            color: var(--tt-text-secondary);
        }
        .tt-breadcrumb a {
            color: var(--tt-green);
            font-weight: 500;
        }
        .tt-breadcrumb a:hover {
            color: var(--tt-green-bright);
        }
        .tt-breadcrumb .separator {
            margin: 0 8px;
            color: #BDB8AD;
        }
        .tt-breadcrumb .current {
            color: var(--tt-text-secondary);
        }

        /* Category Page Header */
        .tt-cat-header {
            padding: 32px 0 40px;
            background: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-cat-header h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--tt-text);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .tt-cat-header .cat-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        /* List Cards Grid */
        .tt-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .tt-article-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            box-shadow: var(--tt-shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .tt-article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-article-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--tt-bg);
        }
        .tt-article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .tt-article-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .tt-article-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tt-article-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--tt-gold-dark);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }
        .tt-article-card .card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--tt-text);
            margin-bottom: 10px;
        }
        .tt-article-card .card-title a {
            color: var(--tt-text);
        }
        .tt-article-card .card-title a:hover {
            color: var(--tt-green);
        }
        .tt-article-card .card-summary {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .tt-article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #A8A89E;
            border-top: 1px solid var(--tt-border);
            padding-top: 12px;
        }
        .tt-article-card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* Stats Brief */
        .tt-stats-brief {
            background: var(--tt-dark);
            border-radius: var(--tt-radius-lg);
            padding: 40px 32px;
        }
        .tt-stats-brief .stat-item {
            text-align: center;
            padding: 12px 8px;
        }
        .tt-stats-brief .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--tt-gold);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .tt-stats-brief .stat-label {
            font-size: 13px;
            color: #C9C4B8;
            letter-spacing: 0.02em;
        }

        /* Tags Cloud */
        .tt-tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Featured */
        .tt-featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tt-featured-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            box-shadow: var(--tt-shadow-sm);
        }
        .tt-featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
        }
        .tt-featured-card .feat-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .tt-featured-card .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .tt-featured-card:hover .feat-img img {
            transform: scale(1.04);
        }
        .tt-featured-card .feat-body {
            padding: 16px 20px 20px;
        }
        .tt-featured-card .feat-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--tt-gold-dark);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .tt-featured-card .feat-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--tt-text);
            margin-bottom: 8px;
        }
        .tt-featured-card .feat-title a {
            color: var(--tt-text);
        }
        .tt-featured-card .feat-title a:hover {
            color: var(--tt-green);
        }
        .tt-featured-card .feat-summary {
            font-size: 13px;
            color: var(--tt-text-secondary);
            line-height: 1.65;
        }

        /* Subscribe CTA */
        .tt-cta-subscribe {
            background: var(--tt-green-dark);
            border-radius: var(--tt-radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .tt-cta-subscribe .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .tt-cta-subscribe .cta-text p {
            font-size: 14px;
            color: #C9C4B8;
            margin-bottom: 0;
        }
        .tt-subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .tt-subscribe-form input {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 10px 16px;
            color: #FFFFFF;
            font-size: 14px;
            min-width: 260px;
            font-family: var(--tt-font);
            outline: none;
            transition: all 0.2s ease;
        }
        .tt-subscribe-form input::placeholder {
            color: #8A8D8F;
        }
        .tt-subscribe-form input:focus {
            border-color: var(--tt-gold);
            box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.2);
        }

        /* Pagination */
        .tt-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .tt-pagination .page-link-tt {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            background: var(--tt-surface);
            color: var(--tt-text);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .tt-pagination .page-link-tt:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }
        .tt-pagination .page-link-tt.active {
            background: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
            font-weight: 600;
        }
        .tt-pagination .page-link-tt.disabled {
            color: #BDB8AD;
            pointer-events: none;
            border-color: var(--tt-border);
            background: transparent;
        }

        /* Footer */
        .tt-footer {
            background: var(--tt-dark);
            color: #C9C4B8;
            padding: 56px 0 0;
            margin-top: 40px;
        }
        .tt-footer-gird {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid #3A3D3F;
        }
        .tt-footer h6 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-footer ul li {
            margin-bottom: 10px;
        }
        .tt-footer ul li a {
            color: #C9C4B8;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            color: #C9C4B8;
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 0;
        }
        .tt-footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 13px;
            color: #8A8D8F;
        }
        .tt-footer-bottom a {
            color: #8A8D8F;
        }
        .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            :root {
                --tt-header-height: 60px;
            }
            body {
                padding-top: var(--tt-header-height);
            }
            .tt-header .navbar-collapse {
                background: var(--tt-surface);
                border-radius: 12px;
                box-shadow: var(--tt-shadow-md);
                padding: 16px;
                margin-top: 8px;
                max-height: 70vh;
                overflow-y: auto;
            }
            .tt-header .nav-link {
                padding: 10px 12px !important;
                font-size: 15px;
            }
            .tt-header-actions {
                margin-top: 12px;
                flex-wrap: wrap;
            }
            .tt-header-search {
                min-width: 100%;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --tt-section-padding: var(--tt-section-padding-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .tt-cat-header h1 {
                font-size: 28px;
            }
            .tt-list-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tt-featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tt-stats-brief {
                padding: 28px 20px;
            }
            .tt-stats-brief .stat-number {
                font-size: 26px;
            }
            .tt-cta-subscribe {
                padding: 28px 20px;
                text-align: center;
                justify-content: center;
            }
            .tt-subscribe-form input {
                min-width: 100%;
            }
            .tt-footer-gird {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .tt-footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }
        @media (max-width: 575.98px) {
            .section-title {
                font-size: 22px;
            }
            .tt-cat-header h1 {
                font-size: 24px;
            }
            .tt-footer-gird {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .tt-breadcrumb {
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition);
        }

        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: var(--tt-section-padding);
        }

        .section-pad-sm {
            padding: 56px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }

        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }

        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }

        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }

        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }

        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }

        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }

        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }

        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }

        .tt-btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: 12px;
        }

        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }

        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }

        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }

        .tt-chip.active {
            background-color: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
            font-weight: 600;
        }

        /* Header / Navigation */
        .tt-header {
            background: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
        }

        .tt-header .navbar {
            padding: 0;
            min-height: 68px;
        }

        .tt-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--tt-green-dark);
            padding: 0;
            margin-right: 32px;
            letter-spacing: 0.02em;
        }

        .tt-header .navbar-brand:hover {
            color: var(--tt-green);
        }

        .tt-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--tt-green);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
        }

        .tt-header .navbar-nav {
            gap: 4px;
        }

        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 10px 16px;
            border-radius: 8px;
            position: relative;
            transition: all 0.2s ease;
            letter-spacing: 0.01em;
        }

        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background: #F0F4F2;
        }

        .tt-header .nav-link.active {
            color: var(--tt-green);
            font-weight: 600;
        }

        .tt-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }

        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .tt-header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--tt-bg);
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 6px 14px;
            min-width: 200px;
        }

        .tt-header-search i {
            color: var(--tt-text-secondary);
            font-size: 13px;
        }

        .tt-header-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            color: var(--tt-text);
            outline: none;
            width: 100%;
            font-family: var(--tt-font);
        }

        .tt-header-search input::placeholder {
            color: #9A9F97;
        }

        .navbar-toggler {
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 8px 10px;
            font-size: 16px;
            color: var(--tt-green);
            background: var(--tt-surface);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--tt-gold);
            outline-offset: 2px;
        }

        /* Breadcrumb */
        .tt-breadcrumb {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--tt-text-secondary);
        }

        .tt-breadcrumb a {
            color: var(--tt-green);
            font-weight: 500;
        }

        .tt-breadcrumb a:hover {
            color: var(--tt-green-bright);
        }

        .tt-breadcrumb .separator {
            margin: 0 8px;
            color: #B0B5AD;
        }

        .tt-breadcrumb .current {
            color: var(--tt-text-secondary);
        }

        /* Category Page Header */
        .tt-category-header {
            background: linear-gradient(135deg, #F7F5F0 0%, #EFF2EE 50%, #F7F3EA 100%);
            border-bottom: 1px solid var(--tt-border);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .tt-category-header::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(201, 164, 92, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .tt-category-header::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(26, 77, 62, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .tt-category-header .category-h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--tt-green-dark);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
            position: relative;
            z-index: 1;
        }

        .tt-category-header .category-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 680px;
            position: relative;
            z-index: 1;
        }

        /* Pill Navigation */
        .tt-pill-nav {
            background: var(--tt-surface);
            border-top: 1px solid var(--tt-border);
            border-bottom: 1px solid var(--tt-border);
            padding: 14px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .tt-pill-nav::-webkit-scrollbar {
            display: none;
        }

        .tt-pill-nav-inner {
            display: flex;
            gap: 10px;
            align-items: center;
            min-width: max-content;
        }

        /* List Cards */
        .tt-list-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            box-shadow: var(--tt-shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .tt-list-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }

        .tt-list-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #E5E8E3;
        }

        .tt-list-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .tt-list-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .tt-list-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tt-list-card .card-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .tt-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 50px;
            letter-spacing: 0.02em;
        }

        .tt-badge-green {
            background: #EAF2EF;
            color: var(--tt-green);
        }

        .tt-badge-gold {
            background: #F7F0E0;
            color: var(--tt-gold-dark);
        }

        .tt-badge-gray {
            background: #F0EFEB;
            color: var(--tt-text-secondary);
        }

        .tt-list-card .card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--tt-text);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .tt-list-card .card-title a {
            color: var(--tt-text);
        }

        .tt-list-card .card-title a:hover {
            color: var(--tt-green);
        }

        .tt-list-card .card-text {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .tt-list-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: #9A9F97;
        }

        .tt-list-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .tt-list-card .read-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--tt-green);
            transition: all 0.2s ease;
            margin-top: auto;
        }

        .tt-list-card .read-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }

        .tt-list-card .read-link:hover {
            color: var(--tt-green-bright);
        }

        .tt-list-card .read-link:hover i {
            transform: translateX(4px);
        }

        /* Data brief */
        .tt-data-brief {
            background: var(--tt-dark);
            border-radius: var(--tt-radius-lg);
            padding: 32px 36px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .tt-data-brief::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(201, 164, 92, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .tt-data-brief .data-item {
            text-align: center;
            padding: 12px 8px;
            position: relative;
            z-index: 1;
        }

        .tt-data-brief .data-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--tt-gold);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .tt-data-brief .data-label {
            font-size: 13px;
            color: #C9C4B8;
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        .tt-data-brief .data-divider {
            width: 1px;
            height: 48px;
            background: #3A3D3F;
            margin: 0 auto;
        }

        /* Tag cloud */
        .tt-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tt-tag-cloud .tt-chip {
            background: var(--tt-surface);
        }

        /* Featured cards */
        .tt-featured-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            box-shadow: var(--tt-shadow-sm);
            height: 100%;
        }

        .tt-featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }

        .tt-featured-card .feat-img {
            aspect-ratio: 16 / 9;
            background: #E5E8E3;
            overflow: hidden;
        }

        .tt-featured-card .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .tt-featured-card:hover .feat-img img {
            transform: scale(1.04);
        }

        .tt-featured-card .feat-body {
            padding: 18px 20px 20px;
        }

        .tt-featured-card .feat-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--tt-text);
            margin-bottom: 6px;
        }

        .tt-featured-card .feat-text {
            font-size: 13px;
            color: var(--tt-text-secondary);
            line-height: 1.65;
            margin-bottom: 10px;
        }

        /* CTA */
        .tt-cta-band {
            background: linear-gradient(135deg, var(--tt-green-dark) 0%, var(--tt-green) 60%, #1F5A49 100%);
            border-radius: var(--tt-radius-lg);
            padding: 48px 44px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .tt-cta-band::after {
            content: '';
            position: absolute;
            top: -50px;
            right: -30px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(201, 164, 92, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .tt-cta-band .cta-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
            letter-spacing: 0.01em;
        }

        .tt-cta-band .cta-desc {
            font-size: 15px;
            color: #D9DCD7;
            line-height: 1.7;
            position: relative;
            z-index: 1;
            margin-bottom: 20px;
        }

        .tt-cta-band .cta-form {
            display: flex;
            gap: 12px;
            align-items: center;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .tt-cta-band .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 12px 18px;
            font-size: 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.12);
            color: #FFFFFF;
            font-family: var(--tt-font);
            outline: none;
            transition: all 0.2s ease;
        }

        .tt-cta-band .cta-form input::placeholder {
            color: #B8C0B9;
        }

        .tt-cta-band .cta-form input:focus {
            border-color: var(--tt-gold);
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.2);
        }

        /* Pagination */
        .tt-pagination {
            display: flex;
            gap: 8px;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
        }

        .tt-pagination .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            font-size: 14px;
            font-weight: 500;
            border-radius: 8px;
            border: 1px solid var(--tt-border);
            background: var(--tt-surface);
            color: var(--tt-text);
            transition: all 0.2s ease;
            font-family: var(--tt-font);
        }

        .tt-pagination .page-link:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
            background: #F7FAF9;
        }

        .tt-pagination .page-link.active {
            background: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
            font-weight: 600;
        }

        .tt-pagination .page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* FAQ */
        .tt-faq-section {
            background: var(--tt-dark);
            padding: var(--tt-section-padding);
            color: #FFFFFF;
        }

        .tt-faq-section .section-title {
            color: #FFFFFF;
        }

        .tt-faq-section .section-desc {
            color: #B8C0B9;
        }

        .tt-faq-item {
            border-bottom: 1px solid #3A3D3F;
            padding: 18px 0;
        }

        .tt-faq-item:first-child {
            border-top: 1px solid #3A3D3F;
        }

        .tt-faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            padding: 4px 0;
            transition: color 0.2s ease;
            user-select: none;
        }

        .tt-faq-question:hover {
            color: var(--tt-gold);
        }

        .tt-faq-question .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid #4A4D50;
            color: #C9C4B8;
            font-size: 14px;
            flex-shrink: 0;
            transition: all 0.2s ease;
        }

        .tt-faq-question.active .faq-icon {
            background: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
        }

        .tt-faq-answer {
            font-size: 14px;
            color: #C9C4B8;
            line-height: 1.75;
            margin-top: 8px;
            padding-right: 40px;
            display: none;
        }

        .tt-faq-answer.show {
            display: block;
        }

        /* Footer */
        .tt-footer {
            background: var(--tt-dark);
            color: #C9C4B8;
            padding: 56px 0 0;
            border-top: 1px solid #2A2D30;
        }

        .tt-footer .tt-footer-gird {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .tt-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .tt-footer .footer-desc {
            font-size: 14px;
            color: #9A9F97;
            line-height: 1.7;
            max-width: 300px;
        }

        .tt-footer h6 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .tt-footer ul li {
            margin-bottom: 10px;
        }

        .tt-footer ul li a {
            font-size: 14px;
            color: #9A9F97;
            transition: color 0.2s ease;
        }

        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }

        .tt-footer-bottom {
            border-top: 1px solid #2A2D30;
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #8A8F87;
        }

        .tt-footer-bottom a {
            color: #8A8F87;
            font-size: 12px;
        }

        .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }

        /* Section fade-in animation */
        .tt-fade-up {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .tt-fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .tt-header .navbar {
                min-height: 60px;
                padding: 10px 0;
            }

            .tt-header .navbar-collapse {
                padding: 16px 0 8px;
                background: var(--tt-surface);
                border-radius: 0 0 12px 12px;
                border-top: 1px solid var(--tt-border);
            }

            .tt-header .nav-link {
                padding: 12px 4px;
                border-radius: 0;
                font-size: 16px;
            }

            .tt-header .nav-link.active::after {
                display: none;
            }

            .tt-header .nav-link.active {
                background: #F0F4F2;
                border-radius: 8px;
                padding-left: 12px;
            }

            .tt-header-actions {
                flex-wrap: wrap;
                gap: 10px;
                padding: 8px 0;
            }

            .tt-header-search {
                min-width: 100%;
                margin-bottom: 4px;
            }

            .tt-footer .tt-footer-gird {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .tt-category-header .category-h1 {
                font-size: 28px;
            }

            .tt-data-brief .data-divider {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --tt-section-padding: 48px 0;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-title {
                font-size: 22px;
            }

            .tt-category-header {
                padding: 32px 0 28px;
            }

            .tt-category-header .category-h1 {
                font-size: 24px;
            }

            .tt-category-header .category-desc {
                font-size: 14px;
            }

            .tt-data-brief {
                padding: 24px 20px;
            }

            .tt-data-brief .data-number {
                font-size: 28px;
            }

            .tt-cta-band {
                padding: 32px 24px;
            }

            .tt-cta-band .cta-form {
                flex-direction: column;
            }

            .tt-cta-band .cta-form input {
                min-width: 100%;
            }

            .tt-cta-band .cta-form .tt-btn {
                width: 100%;
                justify-content: center;
            }

            .tt-footer .tt-footer-gird {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .tt-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .tt-pagination .page-link {
                min-width: 34px;
                height: 34px;
                font-size: 13px;
                padding: 0 8px;
            }
        }

        @media (max-width: 575.98px) {
            .tt-header .navbar-brand {
                font-size: 18px;
                gap: 8px;
            }

            .tt-brand-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }

            .tt-list-card .card-body {
                padding: 16px 16px 18px;
            }

            .tt-list-card .card-title {
                font-size: 16px;
            }

            .tt-featured-card .feat-body {
                padding: 14px 16px 16px;
            }

            .tt-cta-band .cta-title {
                font-size: 19px;
            }
        }

/* roulang page: category4 */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition);
        }
        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: var(--tt-section-padding);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }
        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }
        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }
        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }
        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }
        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }
        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }
        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }
        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }
        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }
        .tt-chip.active {
            background-color: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
            font-weight: 600;
        }
        /* Header / Nav */
        .tt-header {
            background-color: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .tt-header .navbar {
            padding: 0;
            min-height: 68px;
        }
        .tt-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--tt-green-dark);
            letter-spacing: 0.03em;
        }
        .tt-header .navbar-brand:hover {
            color: var(--tt-green);
        }
        .tt-brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--tt-green);
            color: var(--tt-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 10px 16px;
            border-radius: var(--tt-radius-sm);
            transition: all 0.2s ease;
        }
        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background: #F0F4F1;
        }
        .tt-header .nav-link.active {
            color: var(--tt-green-dark);
            font-weight: 600;
            border-bottom: 2px solid var(--tt-gold);
            border-radius: 0;
        }
        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .tt-header-search {
            display: flex;
            align-items: center;
            background: var(--tt-bg);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-pill);
            padding: 6px 14px;
            gap: 8px;
            transition: border-color 0.2s ease;
        }
        .tt-header-search:focus-within {
            border-color: var(--tt-green);
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.1);
        }
        .tt-header-search i {
            color: var(--tt-text-secondary);
            font-size: 14px;
        }
        .tt-header-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 13px;
            color: var(--tt-text);
            width: 150px;
        }
        .tt-header-search input::placeholder {
            color: #A0A59A;
        }
        .navbar-toggler {
            border: none;
            color: var(--tt-green-dark);
            font-size: 22px;
            padding: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        /* Breadcrumb */
        .tt-breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0;
            font-size: 14px;
        }
        .tt-breadcrumb .breadcrumb-item a {
            color: var(--tt-green);
            font-weight: 500;
        }
        .tt-breadcrumb .breadcrumb-item.active {
            color: var(--tt-text-secondary);
        }
        .tt-breadcrumb .breadcrumb-item+.breadcrumb-item::before {
            content: '/';
            color: #B8B4A8;
        }
        /* Category Page Header */
        .tt-page-header {
            background: linear-gradient(135deg, #F7F5F0 0%, #EFEDE4 100%);
            border-bottom: 1px solid var(--tt-border);
            padding: 48px 0;
        }
        .tt-page-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--tt-text);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .tt-page-header .page-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 700px;
            margin-bottom: 0;
        }
        /* Article List Cards */
        .tt-article-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .tt-article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--tt-shadow-md);
            border-color: #C8D5CE;
        }
        .tt-article-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .tt-article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tt-article-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .tt-article-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--tt-green);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--tt-radius-pill);
        }
        .tt-article-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .tt-article-card .card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .tt-article-card .card-title a {
            color: var(--tt-text);
        }
        .tt-article-card .card-title a:hover {
            color: var(--tt-green);
        }
        .tt-article-card .card-text {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }
        .tt-article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: #A0A59A;
        }
        .tt-article-card .card-meta i {
            margin-right: 4px;
        }
        /* Stats Section */
        .tt-stats-bar {
            background: var(--tt-dark);
            border-radius: var(--tt-radius-lg);
            padding: 32px 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
        }
        .tt-stat-item {
            text-align: center;
            flex: 1;
            min-width: 140px;
        }
        .tt-stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--tt-gold);
            line-height: 1.2;
        }
        .tt-stat-label {
            font-size: 13px;
            color: #C9C4B8;
            margin-top: 6px;
        }
        /* Tag Cloud */
        .tt-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tt-tag-cloud .tt-chip {
            font-size: 13px;
            padding: 8px 16px;
        }
        /* Featured Section */
        .tt-featured-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            height: 100%;
        }
        .tt-featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: var(--tt-gold);
        }
        .tt-featured-card .card-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .tt-featured-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .tt-featured-card .card-body {
            padding: 20px;
        }
        .tt-featured-card .card-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .tt-featured-card .card-title a {
            color: var(--tt-text);
        }
        .tt-featured-card .card-title a:hover {
            color: var(--tt-green);
        }
        .tt-featured-card .card-text {
            font-size: 13px;
            color: var(--tt-text-secondary);
            line-height: 1.65;
        }
        /* CTA Section */
        .tt-cta-section {
            background: var(--tt-dark);
            border-radius: var(--tt-radius-lg);
            padding: 48px 40px;
            text-align: center;
        }
        .tt-cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .tt-cta-section p {
            color: #C9C4B8;
            font-size: 15px;
            margin-bottom: 24px;
        }
        .tt-cta-section .tt-input-group {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .tt-cta-section input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: var(--tt-radius-sm);
            border: 1px solid #3A3D3F;
            background: #2A2D30;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s ease;
        }
        .tt-cta-section input::placeholder {
            color: #8A8F85;
        }
        .tt-cta-section input:focus {
            border-color: var(--tt-gold);
        }
        /* Pagination */
        .tt-pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .tt-pagination .page-link {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--tt-border);
            background: var(--tt-surface);
            color: var(--tt-text);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .tt-pagination .page-link:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }
        .tt-pagination .page-link.active {
            background: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
            font-weight: 600;
        }
        /* Footer */
        .tt-footer {
            background: var(--tt-dark);
            color: #C9C4B8;
            padding: 56px 0 24px;
            margin-top: 40px;
        }
        .tt-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }
        .tt-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #A9A499;
            max-width: 300px;
        }
        .tt-footer h6 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-footer ul li {
            margin-bottom: 10px;
        }
        .tt-footer ul li a {
            color: #A9A499;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }
        .tt-footer-gird {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .tt-footer-bottom {
            border-top: 1px solid #3A3D3F;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: #8A8F85;
            align-items: center;
        }
        .tt-footer-bottom a {
            color: #A9A499;
        }
        .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }
        /* Scroll Reveal */
        .reveal {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        /* Responsive */
        @media (max-width: 992px) {
            .tt-header .navbar-collapse {
                background: var(--tt-surface);
                border-radius: 0 0 var(--tt-radius-lg) var(--tt-radius-lg);
                padding: 16px;
                box-shadow: var(--tt-shadow-md);
            }
            .tt-header .nav-link.active {
                border-bottom: none;
                background: #F0F4F1;
                color: var(--tt-green);
            }
            .tt-header-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                padding-top: 12px;
            }
            .tt-header-search input {
                width: 100%;
            }
            .tt-page-header {
                padding: 32px 0;
            }
            .tt-page-header h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 23px;
            }
            .tt-stats-bar {
                padding: 24px 16px;
            }
            .tt-stat-number {
                font-size: 28px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --tt-section-padding: 48px 0;
            }
            .section-pad {
                padding: var(--tt-section-padding);
            }
            .tt-page-header {
                padding: 24px 0;
            }
            .tt-page-header h1 {
                font-size: 24px;
            }
            .tt-cta-section {
                padding: 32px 20px;
            }
            .tt-cta-section h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 576px) {
            body {
                font-size: 15px;
            }
            .section-title {
                font-size: 20px;
            }
            .tt-page-header h1 {
                font-size: 22px;
            }
            .tt-article-card .card-title {
                font-size: 15px;
            }
            .tt-stats-bar {
                flex-direction: column;
                gap: 16px;
            }
            .tt-stat-number {
                font-size: 24px;
            }
        }

/* roulang page: category3 */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition);
        }
        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: var(--tt-section-padding);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }
        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }
        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }
        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }
        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }
        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }
        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }
        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }
        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }
        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
            background: #EAF2EF;
        }
        .tt-chip.active {
            background: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
            font-weight: 600;
        }

        /* Header / Navigation */
        .tt-header {
            background: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 2px 16px rgba(28, 30, 32, 0.05);
        }
        .tt-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--tt-green-dark);
            letter-spacing: 0.01em;
        }
        .navbar-brand:hover {
            color: var(--tt-green);
        }
        .tt-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--tt-green);
            color: #FFFFFF;
            border-radius: 10px;
            font-size: 16px;
        }
        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 8px 18px;
            margin: 0 2px;
            border-radius: 8px;
            transition: all 0.2s ease;
            position: relative;
        }
        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background: #F0F4F2;
        }
        .tt-header .nav-link.active {
            color: var(--tt-green);
            font-weight: 600;
            background: #EAF2EF;
        }
        .tt-header .nav-link.active::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 4px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .navbar-toggler {
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 18px;
            color: var(--tt-green);
            transition: all 0.2s ease;
        }
        .navbar-toggler:hover {
            background: #EAF2EF;
            border-color: var(--tt-green);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.12);
        }
        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .tt-header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border: 1px solid var(--tt-border);
            border-radius: 50px;
            background: var(--tt-bg);
            transition: all 0.2s ease;
        }
        .tt-header-search i {
            color: var(--tt-text-secondary);
            font-size: 13px;
        }
        .tt-header-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            color: var(--tt-text);
            width: 140px;
            font-family: var(--tt-font);
            outline: none;
        }
        .tt-header-search input::placeholder {
            color: #9A9F94;
        }
        .tt-header-search:focus-within {
            border-color: var(--tt-green);
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.1);
            background: var(--tt-surface);
        }

        /* Breadcrumb */
        .tt-breadcrumb-wrapper {
            background: var(--tt-bg);
            border-bottom: 1px solid var(--tt-border);
            padding: 14px 0;
        }
        .tt-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--tt-text-secondary);
            margin: 0;
            padding: 0;
            list-style: none;
            flex-wrap: wrap;
        }
        .tt-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tt-breadcrumb li a {
            color: var(--tt-green);
            font-weight: 500;
        }
        .tt-breadcrumb li a:hover {
            color: var(--tt-green-bright);
            text-decoration: underline;
        }
        .tt-breadcrumb li span {
            color: #9A9F94;
        }
        .tt-breadcrumb li.current {
            color: var(--tt-text);
            font-weight: 600;
        }

        /* Category page header (compact) */
        .tt-category-header {
            background: var(--tt-bg);
            padding: 44px 0 36px;
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-category-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--tt-text);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .tt-category-header .cat-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            max-width: 760px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Card list section */
        .tt-card-list-section {
            background: var(--tt-bg);
            padding: 56px 0;
        }
        .tt-card-list-section .tt-card {
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .tt-card-list-section .card-img-wrap {
            position: relative;
            overflow: hidden;
            border-radius: var(--tt-radius-lg) var(--tt-radius-lg) 0 0;
            aspect-ratio: 16/9;
            background: #E8E5DC;
        }
        .tt-card-list-section .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .tt-card-list-section .tt-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .tt-card-list-section .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tt-card-list-section .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .tt-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 50px;
            background: #EAF2EF;
            color: var(--tt-green);
            border: none;
            letter-spacing: 0.02em;
        }
        .tt-tag.gold-tag {
            background: #F5EEDC;
            color: var(--tt-gold-dark);
        }
        .tt-card-list-section .card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--tt-text);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .tt-card-list-section .card-summary {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .tt-card-list-section .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: #8A8F84;
            border-top: 1px solid var(--tt-border);
            padding-top: 14px;
        }
        .tt-card-list-section .card-meta i {
            font-size: 12px;
            margin-right: 4px;
            color: var(--tt-gold-dark);
        }
        .tt-card-list-section .read-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--tt-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.2s ease;
        }
        .tt-card-list-section .read-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }
        .tt-card-list-section .read-link:hover {
            color: var(--tt-green-bright);
        }
        .tt-card-list-section .read-link:hover i {
            transform: translateX(4px);
        }
        .tt-card-list-section .card-footer-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: auto;
        }

        /* Stats section */
        .tt-stats-section {
            background: var(--tt-green-dark);
            padding: 56px 0;
        }
        .tt-stats-section .stat-box {
            text-align: center;
            padding: 18px 12px;
        }
        .tt-stats-section .stat-value {
            font-size: 36px;
            font-weight: 700;
            color: var(--tt-gold);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }
        .tt-stats-section .stat-label {
            font-size: 14px;
            color: #C9C4B8;
            letter-spacing: 0.05em;
        }

        /* Tags section */
        .tt-tags-section {
            background: var(--tt-surface);
            padding: 48px 0;
            border-top: 1px solid var(--tt-border);
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-tags-section .chip-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* Featured section */
        .tt-featured-section {
            background: var(--tt-bg);
            padding: 56px 0;
        }
        .tt-featured-section .tt-card {
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .tt-featured-section .card-img-wrap {
            position: relative;
            overflow: hidden;
            border-radius: var(--tt-radius-lg) var(--tt-radius-lg) 0 0;
            aspect-ratio: 16/9;
            background: #E8E5DC;
        }
        .tt-featured-section .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .tt-featured-section .tt-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .tt-featured-section .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tt-featured-section .card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--tt-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .tt-featured-section .card-summary {
            font-size: 13px;
            color: var(--tt-text-secondary);
            margin-bottom: 12px;
            flex: 1;
        }
        .tt-featured-badge {
            display: inline-block;
            background: var(--tt-gold);
            color: var(--tt-green-dark);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 50px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        /* Subscribe CTA */
        .tt-subscribe-section {
            background: var(--tt-green);
            padding: 48px 0;
        }
        .tt-subscribe-section .sub-title {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .tt-subscribe-section .sub-desc {
            font-size: 14px;
            color: #C9D8D2;
            margin-bottom: 0;
        }
        .tt-subscribe-section .subscribe-form {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .tt-subscribe-section .subscribe-form input {
            flex: 1;
            padding: 12px 18px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.95);
            font-size: 14px;
            font-family: var(--tt-font);
            color: var(--tt-text);
            outline: none;
            transition: all 0.2s ease;
        }
        .tt-subscribe-section .subscribe-form input:focus {
            border-color: var(--tt-gold);
            box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.3);
        }
        .tt-subscribe-section .subscribe-form input::placeholder {
            color: #9A9F94;
        }

        /* Pagination section */
        .tt-pagination-section {
            background: var(--tt-bg);
            padding: 40px 0 56px;
        }
        .tt-pagination-section .pagination {
            display: flex;
            gap: 6px;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
        }
        .tt-pagination-section .page-link {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--tt-border);
            background: var(--tt-surface);
            color: var(--tt-text);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .tt-pagination-section .page-link:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
            background: #F0F4F2;
        }
        .tt-pagination-section .page-link.active {
            background: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
            font-weight: 700;
        }
        .tt-pagination-section .page-link.prev-next {
            width: auto;
            padding: 0 18px;
            gap: 6px;
            font-size: 13px;
        }

        /* Mini FAQ */
        .tt-mini-faq-section {
            background: var(--tt-dark);
            padding: 56px 0;
        }
        .tt-mini-faq-section .faq-title {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 28px;
        }
        .tt-faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
        }
        .tt-faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .tt-faq-item .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: #F0EDE4;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color 0.2s ease;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            padding: 0;
            font-family: var(--tt-font);
        }
        .tt-faq-item .faq-question:hover {
            color: var(--tt-gold);
        }
        .tt-faq-item .faq-question i {
            font-size: 16px;
            color: var(--tt-gold);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }
        .tt-faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .tt-faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.3s ease;
            font-size: 14px;
            color: #B5B0A3;
            line-height: 1.75;
            padding-top: 0;
        }
        .tt-faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 10px;
        }

        /* Footer */
        .tt-footer {
            background: var(--tt-dark);
            color: #C9C4B8;
            padding: 56px 0 0;
        }
        .tt-footer-gird {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-brand .tt-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--tt-green);
            color: #FFFFFF;
            border-radius: 10px;
            font-size: 16px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #9A9F94;
            max-width: 320px;
            margin-bottom: 0;
        }
        .tt-footer h6 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-footer ul li {
            margin-bottom: 10px;
        }
        .tt-footer ul li a {
            font-size: 14px;
            color: #9A9F94;
            transition: color 0.2s ease;
        }
        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }
        .tt-footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding: 20px 0;
            font-size: 12px;
            color: #6E7368;
            align-items: center;
        }
        .tt-footer-bottom a {
            color: #6E7368;
            transition: color 0.2s ease;
        }
        .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }
        .tt-footer-bottom span {
            white-space: nowrap;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .tt-header .navbar {
                padding: 12px 0;
            }
            .tt-header-actions {
                gap: 8px;
            }
            .tt-header-search input {
                width: 100px;
            }
            .tt-footer-gird {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .tt-footer-bottom {
                gap: 12px;
                font-size: 11px;
            }
            .tt-category-header h1 {
                font-size: 26px;
            }
            .tt-card-list-section .card-body {
                padding: 16px 18px 18px;
            }
            .tt-card-list-section .card-title {
                font-size: 15px;
            }
            .tt-stats-section .stat-value {
                font-size: 28px;
            }
            .tt-subscribe-section .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --tt-section-padding: 48px 0;
                --tt-section-padding-mobile: 36px 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .tt-category-header {
                padding: 28px 0 24px;
            }
            .tt-category-header h1 {
                font-size: 22px;
            }
            .tt-category-header .cat-desc {
                font-size: 14px;
                line-height: 1.7;
            }
            .tt-card-list-section {
                padding: 36px 0;
            }
            .tt-card-list-section .card-img-wrap {
                aspect-ratio: 16/10;
            }
            .tt-stats-section {
                padding: 36px 0;
            }
            .tt-stats-section .stat-box {
                padding: 12px 8px;
            }
            .tt-stats-section .stat-value {
                font-size: 24px;
            }
            .tt-tags-section {
                padding: 32px 0;
            }
            .tt-featured-section {
                padding: 36px 0;
            }
            .tt-subscribe-section {
                padding: 36px 0;
            }
            .tt-subscribe-section .sub-title {
                font-size: 18px;
            }
            .tt-mini-faq-section {
                padding: 36px 0;
            }
            .tt-mini-faq-section .faq-title {
                font-size: 20px;
            }
            .tt-faq-item .faq-question {
                font-size: 14px;
            }
            .tt-faq-item .faq-answer {
                font-size: 13px;
            }
            .tt-footer {
                padding: 36px 0 0;
            }
            .tt-footer-gird {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 28px;
            }
            .tt-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                font-size: 11px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-header .navbar-brand {
                font-size: 17px;
            }
            .tt-brand-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }
            .tt-header .nav-link {
                font-size: 14px;
                padding: 10px 16px;
            }
            .tt-header-search {
                display: none;
            }
            .tt-breadcrumb-wrapper {
                padding: 10px 0;
            }
            .tt-breadcrumb {
                font-size: 12px;
            }
            .tt-card-list-section .card-meta {
                flex-wrap: wrap;
                gap: 8px;
                font-size: 11px;
            }
            .tt-pagination-section .page-link {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .tt-pagination-section .page-link.prev-next {
                padding: 0 12px;
                font-size: 12px;
            }
        }

        /* Scroll animation */
        .tt-animate {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .tt-animate.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category5 */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition);
        }
        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: var(--tt-section-padding);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }
        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }
        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }
        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }
        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }
        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }
        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }
        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }
        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }
        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }

        /* Header */
        .tt-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--tt-border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .tt-header .navbar {
            min-height: 68px;
            padding: 0;
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--tt-green-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .navbar-brand:hover {
            color: var(--tt-green-dark);
        }
        .tt-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--tt-green);
            color: var(--tt-gold);
            border-radius: 50%;
            font-size: 16px;
        }
        .tt-header .navbar-nav {
            gap: 4px;
        }
        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 8px 16px;
            border-radius: 6px;
            transition: all 0.2s ease;
        }
        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background: #F0F3EF;
        }
        .tt-header .nav-link.active {
            color: var(--tt-gold-dark);
            font-weight: 600;
            position: relative;
        }
        .tt-header .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .tt-header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--tt-bg);
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 6px 12px;
            min-width: 180px;
        }
        .tt-header-search i {
            font-size: 13px;
            color: var(--tt-text-secondary);
        }
        .tt-header-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            font-family: var(--tt-font);
            color: var(--tt-text);
            width: 100%;
            outline: none;
        }
        .tt-header-search input::placeholder {
            color: #9A9E96;
        }
        .navbar-toggler {
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 18px;
            color: var(--tt-green);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--tt-gold);
            outline-offset: 2px;
        }

        /* Breadcrumb */
        .tt-breadcrumb {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--tt-text-secondary);
        }
        .tt-breadcrumb a {
            color: var(--tt-green);
            font-weight: 500;
        }
        .tt-breadcrumb a:hover {
            color: var(--tt-green-bright);
        }
        .tt-breadcrumb .separator {
            margin: 0 6px;
            color: #B8B5AC;
        }
        .tt-breadcrumb .current {
            color: var(--tt-text-secondary);
        }

        /* Category Page Header */
        .tt-cat-header {
            padding: 32px 0 24px;
            background: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-cat-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--tt-text);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .tt-cat-header .cat-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        /* Topic List Cards */
        .tt-topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .tt-topic-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
            display: flex;
            flex-direction: column;
        }
        .tt-topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-topic-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E8E5DC;
        }
        .tt-topic-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tt-topic-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .tt-topic-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--tt-green);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .tt-topic-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .tt-topic-card .card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--tt-text);
            margin-bottom: 8px;
        }
        .tt-topic-card .card-title a {
            color: var(--tt-text);
        }
        .tt-topic-card .card-title a:hover {
            color: var(--tt-green);
        }
        .tt-topic-card .card-text {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .tt-topic-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: #9A9E96;
            border-top: 1px solid var(--tt-border);
            padding-top: 12px;
        }
        .tt-topic-card .card-meta i {
            margin-right: 4px;
        }

        /* Stats */
        .tt-stats-band {
            background: var(--tt-dark);
            border-radius: var(--tt-radius-lg);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .tt-stat-item {
            text-align: center;
        }
        .tt-stat-item .stat-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--tt-gold);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }
        .tt-stat-item .stat-label {
            font-size: 13px;
            color: #C9C4B8;
            margin-top: 6px;
            letter-spacing: 0.04em;
        }

        /* Tag Cloud */
        .tt-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tt-tag-cloud .tt-chip {
            font-size: 13px;
            padding: 7px 16px;
        }

        /* Featured */
        .tt-featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tt-featured-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            overflow: hidden;
            transition: all var(--tt-transition);
        }
        .tt-featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-featured-card .feat-img {
            aspect-ratio: 16 / 9;
            background: #E8E5DC;
            overflow: hidden;
        }
        .tt-featured-card .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tt-featured-card:hover .feat-img img {
            transform: scale(1.05);
        }
        .tt-featured-card .feat-body {
            padding: 16px 18px 18px;
        }
        .tt-featured-card .feat-title {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--tt-text);
            margin-bottom: 6px;
        }
        .tt-featured-card .feat-title a {
            color: var(--tt-text);
        }
        .tt-featured-card .feat-title a:hover {
            color: var(--tt-green);
        }
        .tt-featured-card .feat-desc {
            font-size: 13px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
        }

        /* Subscribe Box */
        .tt-subscribe-box {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .tt-subscribe-box .sub-info {
            flex: 1;
            min-width: 260px;
        }
        .tt-subscribe-box .sub-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--tt-text);
            margin-bottom: 6px;
        }
        .tt-subscribe-box .sub-desc {
            font-size: 14px;
            color: var(--tt-text-secondary);
        }
        .tt-subscribe-box .sub-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .tt-subscribe-box .sub-form input {
            min-width: 240px;
            padding: 10px 16px;
            font-size: 14px;
            font-family: var(--tt-font);
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .tt-subscribe-box .sub-form input:focus {
            border-color: var(--tt-green);
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.12);
        }

        /* Pagination */
        .tt-pagination {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .tt-pagination .page-link-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 10px;
            font-size: 14px;
            font-weight: 500;
            border-radius: 8px;
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: var(--tt-surface);
            transition: all 0.2s ease;
        }
        .tt-pagination .page-link-custom:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }
        .tt-pagination .page-link-custom.active {
            background: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
            font-weight: 600;
        }
        .tt-pagination .page-link-custom.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        /* Mini FAQ */
        .tt-mini-faq {
            background: var(--tt-dark);
            border-radius: var(--tt-radius-lg);
            padding: 36px 32px;
        }
        .tt-mini-faq .section-title {
            color: #FFFFFF;
        }
        .tt-mini-faq .section-title.underline::after {
            background: var(--tt-gold);
        }
        .tt-faq-item {
            border-bottom: 1px solid #3A3D3F;
            padding: 16px 0;
        }
        .tt-faq-item:last-child {
            border-bottom: none;
        }
        .tt-faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: color 0.2s ease;
        }
        .tt-faq-item .faq-q:hover {
            color: var(--tt-gold);
        }
        .tt-faq-item .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: #3A3D3F;
            color: var(--tt-gold);
            font-size: 14px;
            transition: transform 0.2s ease;
        }
        .tt-faq-item .faq-a {
            color: #C9C4B8;
            font-size: 14px;
            line-height: 1.8;
            padding-top: 10px;
            display: none;
        }
        .tt-faq-item .faq-a.show {
            display: block;
        }
        .tt-faq-item .faq-a p {
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .tt-header .navbar-collapse {
                background: #fff;
                padding: 16px;
                border-radius: 0 0 12px 12px;
                border: 1px solid var(--tt-border);
                margin-top: 10px;
            }
            .tt-header-actions {
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
            }
            .tt-header-search {
                min-width: auto;
            }
            .tt-topic-grid {
                grid-template-columns: 1fr;
            }
            .tt-featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .tt-stats-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .tt-stat-item .stat-num {
                font-size: 28px;
            }
        }
        @media (max-width: 767.98px) {
            .section-pad {
                padding: var(--tt-section-padding-mobile);
            }
            .tt-cat-header h1 {
                font-size: 26px;
            }
            .tt-featured-grid {
                grid-template-columns: 1fr;
            }
            .tt-stats-band {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
            }
            .tt-stat-item .stat-num {
                font-size: 24px;
            }
            .tt-subscribe-box {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .tt-subscribe-box .sub-form {
                width: 100%;
                flex-direction: column;
            }
            .tt-subscribe-box .sub-form input {
                min-width: auto;
                width: 100%;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .tt-cat-header h1 {
                font-size: 24px;
            }
            .tt-stats-band {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .tt-stat-item .stat-num {
                font-size: 22px;
            }
            .tt-topic-card .card-title {
                font-size: 15px;
            }
        }

.tt-footer {
            background: var(--tt-dark);
            color: #C9C4B8;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .tt-footer-gird {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid #3A3D3F;
            margin-bottom: 24px;
        }
        .tt-footer .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .tt-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #9A9E96;
            margin-bottom: 0;
        }
        .tt-footer h6 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-footer ul li {
            margin-bottom: 10px;
        }
        .tt-footer ul li a {
            color: #9A9E96;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }
        .tt-footer-bottom {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #7A7E76;
        }
        .tt-footer-bottom a {
            color: #9A9E96;
            font-size: 13px;
        }
        .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }
        @media (max-width: 991.98px) {
            .tt-footer-gird {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .tt-footer-gird {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .tt-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category6 */
:root {
            --tt-green: #1A4D3E;
            --tt-green-dark: #14352C;
            --tt-green-bright: #2E7D5A;
            --tt-gold: #C9A45C;
            --tt-gold-dark: #A8833E;
            --tt-bg: #F7F5F0;
            --tt-surface: #FFFFFF;
            --tt-dark: #1C1E20;
            --tt-dark-2: #2A2D30;
            --tt-text: #222420;
            --tt-text-secondary: #5C6259;
            --tt-border: #E5E1D8;
            --tt-radius-sm: 8px;
            --tt-radius-md: 12px;
            --tt-radius-lg: 16px;
            --tt-radius-pill: 50px;
            --tt-shadow-sm: 0 1px 3px rgba(28, 30, 32, 0.06);
            --tt-shadow-md: 0 8px 24px rgba(28, 30, 32, 0.08);
            --tt-shadow-lg: 0 12px 32px rgba(28, 30, 32, 0.12);
            --tt-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --tt-transition: 0.25s ease;
            --tt-section-padding: 80px 0;
            --tt-section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--tt-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tt-text);
            background-color: var(--tt-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--tt-green);
            text-decoration: none;
            transition: color var(--tt-transition), border-color var(--tt-transition);
        }
        a:hover {
            color: var(--tt-green-bright);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--tt-gold);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: var(--tt-section-padding);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--tt-gold-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tt-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-title.underline {
            position: relative;
            padding-bottom: 16px;
        }
        .section-title.underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .tt-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: var(--tt-font);
            letter-spacing: 0.02em;
        }
        .tt-btn-primary {
            background-color: var(--tt-green);
            color: #FFFFFF;
            border-color: var(--tt-green);
        }
        .tt-btn-primary:hover {
            background-color: var(--tt-green-bright);
            border-color: var(--tt-green-bright);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 77, 62, 0.25);
        }
        .tt-btn-secondary {
            background-color: transparent;
            color: var(--tt-green);
            border-color: var(--tt-green);
        }
        .tt-btn-secondary:hover {
            background-color: #EAF2EF;
            border-color: var(--tt-green);
            color: var(--tt-green-dark);
            transform: translateY(-1px);
        }
        .tt-btn-gold {
            background-color: var(--tt-gold);
            color: #1C1E20;
            border-color: var(--tt-gold);
        }
        .tt-btn-gold:hover {
            background-color: #B8934F;
            border-color: #B8934F;
            color: #1C1E20;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 164, 92, 0.3);
        }
        .tt-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .tt-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            transition: all var(--tt-transition);
            overflow: hidden;
        }
        .tt-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--tt-radius-pill);
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .tt-chip:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
        }
        .tt-chip.active {
            background: var(--tt-gold);
            color: var(--tt-green-dark);
            border-color: var(--tt-gold);
        }

        /* Header */
        .tt-header {
            background: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 1px 4px rgba(28, 30, 32, 0.04);
        }
        .tt-header .navbar {
            padding: 14px 0;
            min-height: 68px;
        }
        .tt-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--tt-green-dark);
            letter-spacing: 0.02em;
        }
        .tt-header .navbar-brand:hover {
            color: var(--tt-green);
        }
        .tt-brand-icon {
            width: 36px;
            height: 36px;
            background: var(--tt-green);
            color: var(--tt-gold);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .tt-header .navbar-nav {
            gap: 4px;
        }
        .tt-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--tt-text);
            padding: 8px 16px;
            border-radius: 6px;
            transition: all 0.2s ease;
            position: relative;
        }
        .tt-header .nav-link:hover {
            color: var(--tt-green);
            background: #F0F5F3;
        }
        .tt-header .nav-link.active {
            color: var(--tt-green-dark);
            background: #EAF2EF;
            font-weight: 600;
        }
        .tt-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--tt-gold);
            border-radius: 1px;
        }
        .tt-header .navbar-toggler {
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 18px;
            color: var(--tt-green);
            background: transparent;
        }
        .tt-header .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--tt-gold);
            outline-offset: 2px;
        }
        .tt-header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .tt-header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--tt-bg);
            border: 1px solid var(--tt-border);
            border-radius: 8px;
            padding: 8px 14px;
            min-width: 200px;
            transition: all 0.2s ease;
        }
        .tt-header-search:focus-within {
            border-color: var(--tt-green);
            box-shadow: 0 0 0 3px rgba(26, 77, 62, 0.1);
        }
        .tt-header-search .fa-magnifying-glass {
            color: var(--tt-text-secondary);
            font-size: 13px;
        }
        .tt-header-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            color: var(--tt-text);
            outline: none;
            width: 100%;
            font-family: var(--tt-font);
        }
        .tt-header-search input::placeholder {
            color: var(--tt-text-secondary);
            font-size: 13px;
        }

        /* Breadcrumb */
        .tt-breadcrumb {
            padding: 24px 0 8px;
            font-size: 14px;
            color: var(--tt-text-secondary);
        }
        .tt-breadcrumb a {
            color: var(--tt-green);
            font-weight: 500;
        }
        .tt-breadcrumb a:hover {
            color: var(--tt-green-bright);
        }
        .tt-breadcrumb .separator {
            margin: 0 8px;
            color: var(--tt-border);
        }
        .tt-breadcrumb .current {
            color: var(--tt-text-secondary);
        }

        /* Category Page Header */
        .tt-cat-header {
            padding: 28px 0 36px;
            background: var(--tt-bg);
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-cat-header h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--tt-text);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .tt-cat-header .tt-cat-desc {
            font-size: 16px;
            color: var(--tt-text-secondary);
            line-height: 1.8;
            max-width: 760px;
            margin-bottom: 0;
        }

        /* Pill Navigation */
        .tt-pill-nav {
            padding: 16px 0;
            background: var(--tt-surface);
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-pill-nav .pill-scroll {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
        }
        .tt-pill-nav .pill-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .tt-pill-nav .pill-scroll::-webkit-scrollbar-thumb {
            background: var(--tt-border);
            border-radius: 2px;
        }
        .tt-pill-nav .pill-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        /* Stats Overview */
        .tt-stats-overview {
            padding: 48px 0;
            background: var(--tt-surface);
        }
        .tt-stat-item {
            text-align: center;
            padding: 20px 16px;
            border-right: 1px solid var(--tt-border);
        }
        .tt-stat-item:last-child {
            border-right: none;
        }
        .tt-stat-item .stat-number {
            font-size: 38px;
            font-weight: 800;
            color: var(--tt-green);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .tt-stat-item .stat-label {
            font-size: 13px;
            color: var(--tt-text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* Question List */
        .tt-question-list {
            padding: 64px 0;
            background: var(--tt-bg);
        }
        .tt-question-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--tt-border);
            transition: all 0.2s ease;
        }
        .tt-question-item:hover {
            padding-left: 8px;
        }
        .tt-question-avatar {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #EAF2EF;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--tt-green);
            font-weight: 700;
            font-size: 18px;
            overflow: hidden;
        }
        .tt-question-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .tt-question-content {
            flex: 1;
            min-width: 0;
        }
        .tt-question-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--tt-text);
            line-height: 1.45;
            margin-bottom: 6px;
        }
        .tt-question-title a {
            color: var(--tt-text);
        }
        .tt-question-title a:hover {
            color: var(--tt-green);
        }
        .tt-question-excerpt {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .tt-question-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 13px;
            color: var(--tt-text-secondary);
        }
        .tt-question-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .tt-question-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            background: #F0F5F3;
            color: var(--tt-green);
            font-size: 12px;
            font-weight: 500;
        }

        /* Tags Cloud */
        .tt-tags-section {
            padding: 56px 0;
            background: var(--tt-surface);
            border-top: 1px solid var(--tt-border);
            border-bottom: 1px solid var(--tt-border);
        }
        .tt-tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* Featured Picks */
        .tt-featured-section {
            padding: 64px 0;
            background: var(--tt-bg);
        }
        .tt-featured-card {
            background: var(--tt-surface);
            border: 1px solid var(--tt-border);
            border-radius: var(--tt-radius-lg);
            box-shadow: var(--tt-shadow-sm);
            overflow: hidden;
            transition: all var(--tt-transition);
            height: 100%;
        }
        .tt-featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--tt-shadow-md);
            border-color: #D5D0C4;
        }
        .tt-featured-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .tt-featured-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tt-featured-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .tt-featured-card .card-body {
            padding: 20px 22px;
        }
        .tt-featured-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--tt-gold-dark);
            background: #FAF6EE;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        .tt-featured-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--tt-text);
            line-height: 1.45;
            margin-bottom: 8px;
        }
        .tt-featured-card .card-text {
            font-size: 14px;
            color: var(--tt-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .tt-featured-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--tt-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .tt-featured-card .card-link:hover {
            color: var(--tt-green-bright);
            gap: 10px;
        }

        /* CTA Subscribe */
        .tt-cta-section {
            padding: 72px 0;
            background: var(--tt-dark);
            color: #F5F2EB;
        }
        .tt-cta-section .cta-box {
            background: var(--tt-dark-2);
            border: 1px solid #3A3D3F;
            border-radius: var(--tt-radius-lg);
            padding: 48px 40px;
            text-align: center;
        }
        .tt-cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .tt-cta-section p {
            font-size: 15px;
            color: #C9C4B8;
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .tt-cta-section .subscribe-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .tt-cta-section .subscribe-form input {
            padding: 14px 20px;
            border-radius: 10px;
            border: 1px solid #3A3D3F;
            background: var(--tt-dark);
            color: #FFFFFF;
            font-size: 15px;
            min-width: 280px;
            outline: none;
            font-family: var(--tt-font);
            transition: border-color 0.2s ease;
        }
        .tt-cta-section .subscribe-form input::placeholder {
            color: #8A8D90;
        }
        .tt-cta-section .subscribe-form input:focus {
            border-color: var(--tt-gold);
            box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.15);
        }

        /* Pagination */
        .tt-pagination-wrap {
            padding: 24px 0 48px;
            background: var(--tt-bg);
        }
        .tt-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-pagination .page-item .page-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--tt-border);
            color: var(--tt-text);
            font-size: 14px;
            font-weight: 500;
            background: var(--tt-surface);
            transition: all 0.2s ease;
            padding: 0;
        }
        .tt-pagination .page-item .page-link:hover {
            border-color: var(--tt-green);
            color: var(--tt-green);
            background: #F0F5F3;
        }
        .tt-pagination .page-item.active .page-link {
            background: var(--tt-gold);
            border-color: var(--tt-gold);
            color: var(--tt-green-dark);
            font-weight: 700;
        }
        .tt-pagination .page-item.disabled .page-link {
            color: #B8B8B0;
            pointer-events: none;
            background: transparent;
            border-color: var(--tt-border);
        }

        /* FAQ Section */
        .tt-faq-section {
            padding: 72px 0;
            background: var(--tt-dark);
        }
        .tt-faq-section .section-title {
            color: #FFFFFF;
        }
        .tt-faq-section .section-desc {
            color: #C9C4B8;
        }
        .tt-accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .tt-accordion .accordion-item {
            background: var(--tt-dark-2);
            border: 1px solid #3A3D3F;
            border-radius: var(--tt-radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .tt-accordion .accordion-header .accordion-button {
            background: transparent;
            color: #FFFFFF;
            font-size: 17px;
            font-weight: 600;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
            font-family: var(--tt-font);
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .tt-accordion .accordion-header .accordion-button:hover {
            color: var(--tt-gold);
        }
        .tt-accordion .accordion-header .accordion-button:not(.collapsed) {
            color: var(--tt-gold);
            border-bottom: 1px solid #3A3D3F;
        }
        .tt-accordion .accordion-header .accordion-button::after {
            content: '\2b';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 16px;
            background: none;
            transform: none;
            transition: transform 0.2s ease;
            color: var(--tt-gold);
        }
        .tt-accordion .accordion-header .accordion-button:not(.collapsed)::after {
            content: '\2212';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            transform: none;
        }
        .tt-accordion .accordion-body {
            padding: 20px 24px;
            color: #C9C4B8;
            font-size: 15px;
            line-height: 1.8;
        }

        /* Footer */
        .tt-footer {
            background: var(--tt-dark);
            color: #C9C4B8;
            padding: 64px 0 0;
            border-top: 1px solid #3A3D3F;
        }
        .tt-footer .tt-footer-gird {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #3A3D3F;
        }
        .tt-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .tt-footer .footer-desc {
            font-size: 14px;
            color: #9A9C98;
            line-height: 1.75;
            max-width: 320px;
            margin-bottom: 0;
        }
        .tt-footer h6 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .tt-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tt-footer ul li {
            margin-bottom: 10px;
        }
        .tt-footer ul li a {
            font-size: 14px;
            color: #9A9C98;
            transition: color 0.2s ease;
        }
        .tt-footer ul li a:hover {
            color: var(--tt-gold);
        }
        .tt-footer .tt-footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding: 20px 0;
            font-size: 12px;
            color: #8A8D90;
            align-items: center;
        }
        .tt-footer .tt-footer-bottom a {
            color: #8A8D90;
        }
        .tt-footer .tt-footer-bottom a:hover {
            color: var(--tt-gold);
        }

        /* Reveal animation */
        .reveal {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .tt-header .navbar-collapse {
                background: var(--tt-surface);
                border-radius: var(--tt-radius-md);
                padding: 16px;
                margin-top: 12px;
                border: 1px solid var(--tt-border);
                box-shadow: var(--tt-shadow-md);
            }
            .tt-header .navbar-nav {
                gap: 0;
            }
            .tt-header .nav-link {
                padding: 12px 16px;
                border-radius: 6px;
            }
            .tt-header .nav-link.active::after {
                display: none;
            }
            .tt-header-actions {
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
                gap: 10px;
            }
            .tt-header-search {
                min-width: auto;
            }
            .tt-footer .tt-footer-gird {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .tt-stat-item {
                border-right: none;
                border-bottom: 1px solid var(--tt-border);
                padding: 14px 8px;
            }
            .tt-stat-item:last-child {
                border-bottom: none;
            }
            .tt-cat-header h1 {
                font-size: 28px;
            }
            .tt-cta-section .cta-box {
                padding: 32px 24px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --tt-section-padding: 48px 0;
                --tt-section-padding-mobile: 40px 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 15px;
            }
            .tt-cat-header h1 {
                font-size: 24px;
            }
            .tt-cat-header .tt-cat-desc {
                font-size: 14px;
            }
            .tt-question-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 0;
            }
            .tt-question-item:hover {
                padding-left: 0;
            }
            .tt-question-title {
                font-size: 16px;
            }
            .tt-stat-item .stat-number {
                font-size: 28px;
            }
            .tt-footer .tt-footer-gird {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .tt-footer {
                padding-top: 40px;
            }
            .tt-footer .tt-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .tt-pagination .page-item .page-link {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .tt-cta-section h2 {
                font-size: 22px;
            }
            .tt-cta-section .subscribe-form input {
                min-width: auto;
                width: 100%;
            }
        }

        @media (max-width: 575px) {
            .tt-header .navbar-brand {
                font-size: 17px;
            }
            .tt-header .navbar {
                padding: 10px 0;
                min-height: 56px;
            }
            .tt-brand-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 6px;
            }
            .tt-pill-nav {
                padding: 12px 0;
            }
            .tt-chip {
                padding: 6px 14px;
                font-size: 12px;
            }
            .tt-cat-header {
                padding: 20px 0 28px;
            }
            .tt-question-avatar {
                width: 40px;
                height: 40px;
                font-size: 15px;
            }
            .tt-question-meta {
                gap: 8px;
                font-size: 12px;
            }
            .tt-question-tag {
                font-size: 11px;
                padding: 2px 8px;
            }
            .tt-featured-card .card-body {
                padding: 16px 18px;
            }
            .tt-featured-card .card-title {
                font-size: 16px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}