/* roulang page: index */
:root {
      --primary: #2c2c2c;
      --accent: #c9a96e;
      --accent-hover: #b28a4a;
      --bg-light: #f8f7f4;
      --bg-dark: #1a1a1a;
      --text-primary: #212121;
      --text-secondary: #5c5c5c;
      --text-light: #ffffff;
      --border-color: #e0ddd4;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 10px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
      --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
      --transition: 0.25s ease;
    }
    * { box-sizing: border-box; }
    body {
      font-family: 'Inter', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
      background-color: #ffffff;
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { transition: var(--transition); text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }

    /* header / navbar */
    .navbar {
      background-color: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 0.75rem 0;
      box-shadow: var(--shadow-sm);
    }
    .navbar-brand {
      font-weight: 600;
      font-size: 1.75rem;
      letter-spacing: 2px;
      color: var(--primary) !important;
      display: flex;
      align-items: center;
    }
    .navbar-brand img.nav-logo-icon {
      width: 34px; height: 34px; margin-right: 8px;
    }
    .nav-link {
      font-weight: 500;
      color: var(--text-secondary) !important;
      margin: 0 4px;
      padding: 0.5rem 1rem !important;
      border-radius: var(--radius-sm);
    }
    .nav-link.active, .nav-link:hover {
      color: var(--accent) !important;
      background-color: rgba(201,169,110,0.06);
    }
    .navbar .btn-outline-accent {
      border: 1px solid var(--accent);
      color: var(--accent);
      font-weight: 500;
      border-radius: var(--radius-lg);
      padding: 0.45rem 1.5rem;
      transition: var(--transition);
    }
    .navbar .btn-outline-accent:hover {
      background-color: var(--accent);
      color: #ffffff;
      border-color: var(--accent);
    }
    .search-input {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding-left: 1rem;
      background-color: var(--bg-light);
      transition: var(--transition);
      font-size: 0.9rem;
    }
    .search-input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 0.15rem rgba(201,169,110,0.25);
      background-color: #ffffff;
    }

    /* hero */
    .hero {
      position: relative;
      background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 75vh;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-light);
      text-shadow: 0 2px 6px rgba(0,0,0,0.3);
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, rgba(0,0,0,0.35), rgba(0,0,0,0.55));
      z-index: 1;
    }
    .hero .container {
      position: relative;
      z-index: 2;
    }
    .hero h1 {
      font-size: 3.8rem;
      font-weight: 700;
      letter-spacing: 3px;
      margin-bottom: 1.2rem;
    }
    .hero p {
      font-size: 1.3rem;
      opacity: 0.9;
      margin-bottom: 2rem;
    }
    .btn-accent {
      background-color: var(--accent);
      border: 1px solid var(--accent);
      color: #ffffff;
      font-weight: 600;
      border-radius: var(--radius-lg);
      padding: 0.75rem 2.2rem;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      border-color: var(--accent-hover);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }
    .btn-outline-accent {
      border: 1px solid var(--accent);
      color: var(--accent);
      font-weight: 500;
      border-radius: var(--radius-lg);
      padding: 0.65rem 2rem;
      transition: var(--transition);
    }
    .btn-outline-accent:hover {
      background-color: var(--accent);
      border-color: var(--accent);
      color: #fff;
    }
    .btn-outline-light-custom {
      border: 1px solid rgba(255,255,255,0.7);
      color: #fff;
      border-radius: var(--radius-lg);
      padding: 0.65rem 2rem;
      transition: var(--transition);
    }
    .btn-outline-light-custom:hover {
      background-color: rgba(255,255,255,0.15);
      border-color: #fff;
      color: #fff;
    }

    /* sections */
    .section-padding {
      padding: 5rem 0;
    }
    .section-bg-light {
      background-color: var(--bg-light);
    }
    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 1rem;
      position: relative;
      display: inline-block;
    }
    .section-title::after {
      content: '';
      display: block;
      width: 50px;
      height: 3px;
      background: var(--accent);
      margin-top: 0.5rem;
      border-radius: 2px;
    }
    .subtitle {
      color: var(--text-secondary);
      font-size: 1.1rem;
      margin-bottom: 2.5rem;
    }

    /* cards */
    .brand-card, .insight-card, .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      border: 1px solid var(--border-color);
      overflow: hidden;
      height: 100%;
    }
    .brand-card:hover, .insight-card:hover, .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }
    .brand-card img, .insight-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }
    .card-body-custom {
      padding: 1.8rem;
    }
    .badge-accent {
      background-color: rgba(201,169,110,0.15);
      color: var(--accent);
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 0.3rem 0.9rem;
      font-size: 0.8rem;
    }

    /* data panel */
    .data-item {
      text-align: center;
      padding: 2rem;
      background: #ffffff;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .data-item:hover {
      box-shadow: var(--shadow-md);
    }
    .data-number {
      font-size: 2.6rem;
      font-weight: 700;
      color: var(--accent);
    }

    /* faq */
    .accordion-button {
      font-weight: 600;
      border-radius: var(--radius-sm) !important;
      box-shadow: none;
      background-color: #ffffff;
      color: var(--text-primary);
    }
    .accordion-button:not(.collapsed) {
      background-color: var(--bg-light);
      color: var(--accent);
      box-shadow: none;
    }
    .accordion-item {
      border: 1px solid var(--border-color);
      margin-bottom: 0.8rem;
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    /* cta */
    .cta-section {
      background-color: var(--bg-dark);
      color: var(--text-light);
      padding: 4rem 0;
    }
    .cta-section .section-title::after {
      background: var(--accent);
    }

    /* footer */
    .footer {
      background-color: #f5f4f0;
      padding: 3rem 0 1.5rem;
      border-top: 1px solid var(--border-color);
      color: var(--text-secondary);
    }
    .footer h4, .footer h5 {
      color: var(--primary);
      margin-bottom: 1rem;
    }
    .footer a {
      color: var(--text-secondary);
      text-decoration: none;
    }
    .footer a:hover {
      color: var(--accent);
    }
    .footer .copyright {
      font-size: 0.9rem;
      border-top: 1px solid var(--border-color);
      padding-top: 1.5rem;
      margin-top: 2rem;
    }

    /* responsive */
    @media (max-width: 1024px) {
      .hero h1 { font-size: 2.8rem; }
    }
    @media (max-width: 768px) {
      .hero { min-height: 55vh; }
      .hero h1 { font-size: 2.2rem; }
      .navbar-brand { font-size: 1.4rem; }
      .section-padding { padding: 3rem 0; }
    }
    @media (max-width: 520px) {
      .hero h1 { font-size: 1.8rem; }
      .data-number { font-size: 2rem; }
      .btn-accent { padding: 0.6rem 1.8rem; }
    }

/* roulang page: category4 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #5b7b4a;
            --color-accent-light: #7a9e64;
            --color-accent-subtle: #e8f0e2;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #1a1a1a;
            --color-text-soft: #5c5c5c;
            --color-text-muted: #8a8a8a;
            --color-border: #e5e5e0;
            --color-border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-weight: 400;
            letter-spacing: 0.01em;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1280px;
            }
        }

        /* ===== Navbar ===== */
        .navbar {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            padding-top: 12px;
            padding-bottom: 12px;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }
        .navbar.sticky-top {
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.98);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.03em;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .navbar-brand:hover {
            color: var(--color-accent);
        }
        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            object-fit: cover;
        }
        .navbar-nav {
            gap: 4px;
        }
        .nav-link {
            color: var(--color-text-soft);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: #f5f5f2;
        }
        .nav-link.active {
            color: var(--color-accent);
            background: var(--color-accent-subtle);
            font-weight: 600;
        }
        .navbar-toggler {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            transition: border-color var(--transition-fast);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(91, 123, 74, 0.18);
            outline: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26,26,26,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .search-input {
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 7px 16px;
            font-size: 0.9rem;
            background: var(--color-bg);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            color: var(--color-text);
        }
        .search-input::placeholder {
            color: var(--color-text-muted);
        }
        .search-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(91, 123, 74, 0.1);
            outline: none;
            background: #fff;
        }
        .btn-outline-accent {
            border: 1.5px solid var(--color-accent);
            color: var(--color-accent);
            background: transparent;
            border-radius: 20px;
            padding: 7px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline-accent:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-accent:active {
            background: #4a6b3d;
            border-color: #4a6b3d;
            transform: scale(0.97);
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: #fff;
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--color-border-light);
            }
            .navbar-nav {
                gap: 2px;
            }
            .nav-link {
                padding: 10px 16px;
                border-radius: var(--radius-sm);
            }
            .search-input {
                width: 100% !important;
                margin-bottom: 8px;
            }
            .d-flex.align-items-center {
                flex-direction: column;
                align-items: stretch !important;
                gap: 8px;
            }
            .btn-outline-accent {
                width: 100%;
                text-align: center;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(160deg, #e8f0e2 0%, #d5e8ce 30%, #eef5ea 60%, #fafaf8 100%);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-light);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(122, 158, 100, 0.08);
            pointer-events: none;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(91, 123, 74, 0.05);
            pointer-events: none;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
        }
        .page-banner .category-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: var(--spacing-sm);
            text-transform: uppercase;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--color-text-soft);
            max-width: 640px;
            line-height: 1.7;
        }
        .page-banner .banner-stats {
            display: flex;
            gap: 32px;
            margin-top: var(--spacing-md);
            flex-wrap: wrap;
        }
        .page-banner .banner-stat-item {
            text-align: left;
        }
        .page-banner .banner-stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }
        .page-banner .banner-stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: var(--spacing-xl) 0 var(--spacing-lg);
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .page-banner .banner-stats {
                gap: 16px;
            }
            .page-banner .banner-stat-value {
                font-size: 1.5rem;
            }
        }

        /* ===== Section General ===== */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            margin-bottom: var(--spacing-xs);
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
            margin-bottom: var(--spacing-lg);
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== Content Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }
        .card-custom {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-custom .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f5f5f2;
        }
        .card-custom .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-custom .card-body-custom {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-custom .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--color-accent);
            background: var(--color-accent-subtle);
            padding: 4px 10px;
            border-radius: 14px;
            margin-bottom: 10px;
            text-transform: uppercase;
            align-self: flex-start;
        }
        .card-custom .card-title-custom {
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.015em;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .card-custom .card-text-custom {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .card-custom .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-custom .card-body-custom {
                padding: 16px 16px 18px;
            }
            .card-custom .card-title-custom {
                font-size: 1rem;
            }
        }

        /* ===== Highlight Block ===== */
        .highlight-block {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            display: flex;
            gap: 28px;
            align-items: flex-start;
            transition: box-shadow var(--transition-base);
        }
        .highlight-block:hover {
            box-shadow: var(--shadow-md);
        }
        .highlight-block .hl-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--color-accent-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
        }
        .highlight-block .hl-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 4px;
            color: var(--color-primary);
        }
        .highlight-block .hl-content p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .highlight-block {
                flex-direction: column;
                padding: 24px 20px;
                gap: 16px;
            }
        }

        /* ===== Data Dashboard ===== */
        .data-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .data-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .data-card .data-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }
        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-top: 4px;
            letter-spacing: 0.02em;
        }
        .data-card .data-trend {
            font-size: 0.78rem;
            color: var(--color-accent-light);
            font-weight: 600;
            margin-top: 2px;
        }

        @media (max-width: 991px) {
            .data-dashboard {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .data-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-card {
                padding: 16px 12px;
            }
            .data-card .data-value {
                font-size: 1.6rem;
            }
        }

        /* ===== Timeline List ===== */
        .timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
            position: relative;
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }
        .timeline-list li {
            position: relative;
            padding-left: 44px;
            margin-bottom: 20px;
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .timeline-list li::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 7px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--color-accent-subtle);
            border: 3px solid var(--color-accent);
            box-sizing: border-box;
        }
        .timeline-list li strong {
            color: var(--color-primary);
            display: block;
            margin-bottom: 2px;
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #f9faf7;
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            margin-top: var(--spacing-sm);
        }
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            background: #fff;
            overflow: hidden;
        }
        .accordion-custom .accordion-header button {
            font-weight: 600;
            font-size: 0.98rem;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            background: #fff;
            padding: 16px 20px;
            border: none;
            width: 100%;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background var(--transition-fast);
            border-radius: 0;
        }
        .accordion-custom .accordion-header button:hover {
            background: #fafaf8;
        }
        .accordion-custom .accordion-header button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: -2px;
        }
        .accordion-custom .accordion-header button::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .accordion-custom .accordion-header button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .accordion-custom .accordion-body {
            padding: 6px 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .faq-section {
                padding: 24px 16px;
            }
            .accordion-custom .accordion-header button {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(145deg, #3a5530 0%, #4a6b3d 40%, #5b7b4a 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -100px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta-white {
            display: inline-block;
            background: #fff;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            padding: 12px 28px;
            border-radius: 24px;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-cta-white:hover {
            background: #f0f0eb;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .cta-section .btn-cta-white:active {
            transform: scale(0.96);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #1a1a1a;
            color: #c0c0bb;
            padding: 48px 0 24px;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            border-top: 1px solid #333;
        }
        .footer h4,
        .footer h5 {
            color: #fff;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }
        .footer h4 {
            font-size: 1.2rem;
        }
        .footer h5 {
            font-size: 0.95rem;
        }
        .footer a {
            color: #a0a09a;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer a:hover {
            color: #fff;
        }
        .footer .list-unstyled li {
            margin-bottom: 6px;
        }
        .footer .copyright {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid #333;
            font-size: 0.82rem;
            color: #888;
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .footer {
                padding: 32px 0 16px;
                text-align: center;
            }
            .footer .row>div {
                margin-bottom: 20px;
            }
        }

        /* ===== Utility ===== */
        .text-accent {
            color: var(--color-accent);
        }
        .bg-soft {
            background: #f9faf7;
        }
        .divider {
            border-top: 1px solid var(--color-border-light);
            margin: var(--spacing-lg) 0;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category3 */
:root {
            --primary: #2C2416;
            --primary-light: #4A3F2F;
            --accent: #C8A45C;
            --accent-light: #D4B872;
            --accent-dark: #A8893E;
            --bg: #FAF7F2;
            --bg-warm: #F5F0E8;
            --bg-cream: #FDFAF5;
            --text: #1a1a1a;
            --text-secondary: #4A4238;
            --text-muted: #7A7266;
            --text-light: #9E9688;
            --border: #E8E0D5;
            --border-light: #F0EBE2;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FEFCF8;
            --shadow-sm: 0 2px 8px rgba(44, 36, 22, 0.05);
            --shadow: 0 4px 24px rgba(44, 36, 22, 0.07);
            --shadow-md: 0 8px 40px rgba(44, 36, 22, 0.10);
            --shadow-lg: 0 16px 56px rgba(44, 36, 22, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Georgia', 'Noto Serif SC', 'STSong', serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            color: var(--text);
            background-color: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            line-height: 1.3;
            color: var(--primary);
        }

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

        /* ===== NAVBAR ===== */
        .navbar {
            background: #FFFFFF;
            box-shadow: 0 1px 0 var(--border-light), 0 2px 12px rgba(44, 36, 22, 0.04);
            padding: 0;
            min-height: 68px;
            z-index: 1050;
        }

        .navbar .container {
            padding-top: 0;
            padding-bottom: 0;
        }

        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary) !important;
            letter-spacing: 0.03em;
            padding: 12px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-brand:hover {
            color: var(--accent) !important;
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            object-fit: cover;
            margin-right: 8px;
            vertical-align: middle;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary) !important;
            padding: 10px 16px !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--accent) !important;
            background: rgba(200, 164, 92, 0.06);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent) !important;
            background: rgba(200, 164, 92, 0.10);
            font-weight: 600;
        }

        .search-input {
            border: 1.5px solid var(--border) !important;
            border-radius: 24px !important;
            padding: 8px 16px !important;
            font-size: 0.9rem !important;
            background: var(--bg-cream) !important;
            transition: all var(--transition-fast);
            color: var(--text) !important;
        }

        .search-input:focus {
            border-color: var(--accent) !important;
            box-shadow: 0 0 0 3px rgba(200, 164, 92, 0.12) !important;
            background: #fff !important;
            outline: none;
        }

        .search-input::placeholder {
            color: var(--text-light);
        }

        .btn-outline-accent {
            border: 1.5px solid var(--accent) !important;
            color: var(--accent) !important;
            background: transparent !important;
            border-radius: 24px !important;
            padding: 8px 20px !important;
            font-size: 0.9rem !important;
            font-weight: 600 !important;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline-accent:hover {
            background: var(--accent) !important;
            color: #fff !important;
            border-color: var(--accent) !important;
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.30);
        }

        .navbar-toggler {
            border: 1.5px solid var(--border) !important;
            border-radius: var(--radius-sm);
            padding: 8px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(200, 164, 92, 0.15) !important;
            outline: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%232C2416' stroke-width='2.2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E") !important;
        }

        /* ===== BREADCRUMB ===== */
        .breadcrumb-bar {
            background: var(--bg-cream);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }

        .breadcrumb-bar .breadcrumb {
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .breadcrumb-bar .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-bar .breadcrumb a:hover {
            color: var(--accent);
        }

        .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-light);
            content: "›";
            font-size: 1.1rem;
            line-height: 1;
        }

        /* ===== BANNER ===== */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: var(--primary) url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(44, 36, 22, 0.82) 0%, rgba(44, 36, 22, 0.55) 40%, rgba(44, 36, 22, 0.35) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }

        .page-banner .banner-tag {
            display: inline-block;
            background: rgba(200, 164, 92, 0.25);
            border: 1px solid rgba(200, 164, 92, 0.5);
            color: #F5E6C8;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .page-banner h1 {
            font-size: 3rem;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .page-banner .banner-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 600px;
            line-height: 1.8;
        }

        /* ===== SECTION ===== */
        .section {
            padding: 72px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: 2.25rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
        }

        .section-alt {
            background: var(--bg-warm);
        }

        /* ===== CRAFT CARD ===== */
        .craft-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .craft-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .craft-card .craft-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--bg-warm);
        }

        .craft-card .craft-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .craft-card:hover .craft-img-wrap img {
            transform: scale(1.06);
        }

        .craft-card .craft-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(44, 36, 22, 0.85);
            color: #D4B872;
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            backdrop-filter: blur(6px);
        }

        .craft-card .craft-body {
            padding: 22px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .craft-card .craft-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .craft-card .craft-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

        .craft-card .craft-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            transition: gap var(--transition-fast);
        }

        .craft-card .craft-link:hover {
            gap: 10px;
            color: var(--accent-dark);
        }

        .craft-card .craft-link i {
            font-size: 0.75rem;
        }

        /* ===== MASTER STORY ===== */
        .master-story {
            background: var(--card-bg-warm);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .master-story .story-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 5 / 4;
            background: var(--bg-warm);
        }

        .master-story .story-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .master-story .story-text {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
        }

        .master-story .story-text .story-quote {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-style: italic;
            color: var(--primary);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            padding-left: 20px;
            border-left: 3px solid var(--accent);
        }

        .master-story .story-text .story-author {
            font-weight: 600;
            color: var(--accent);
            font-size: 0.95rem;
        }

        .master-story .story-text .story-role {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== STAT BLOCK ===== */
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
        }

        .stat-card:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateY(-3px);
        }

        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-card .stat-unit {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ===== PROCESS TIMELINE ===== */
        .process-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            position: relative;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 23px;
            top: 58px;
            bottom: -20px;
            width: 2px;
            background: var(--border);
        }

        .process-step .step-marker {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            font-family: var(--font-heading);
            z-index: 1;
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.35);
        }

        .process-step .step-body h4 {
            font-size: 1.1rem;
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }

        .process-step .step-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--card-bg);
            transition: all var(--transition-fast);
        }

        .faq-section .accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-section .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary) !important;
            background: var(--card-bg) !important;
            padding: 18px 22px;
            border-radius: var(--radius) !important;
            box-shadow: none !important;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

        .faq-section .accordion-button:not(.collapsed) {
            color: var(--accent) !important;
            background: var(--bg-cream) !important;
            border-bottom: 1px solid var(--border-light);
        }

        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(200, 164, 92, 0.12) !important;
            outline: none;
        }

        .faq-section .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C8A45C' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") !important;
            transition: transform var(--transition-fast);
        }

        .faq-section .accordion-body {
            padding: 18px 22px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            background: var(--card-bg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 164, 92, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(200, 164, 92, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 56px 0;
        }

        .cta-section h2 {
            color: #FFFFFF;
            font-size: 2.1rem;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .btn-accent {
            background: var(--accent) !important;
            color: #fff !important;
            border: none !important;
            border-radius: 28px !important;
            padding: 13px 32px !important;
            font-weight: 600 !important;
            font-size: 1rem !important;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(200, 164, 92, 0.35);
        }

        .btn-accent:hover {
            background: var(--accent-light) !important;
            box-shadow: 0 10px 32px rgba(200, 164, 92, 0.45);
            transform: translateY(-2px);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(200, 164, 92, 0.30);
        }

        .btn-outline-light-custom {
            border: 1.5px solid rgba(255, 255, 255, 0.5) !important;
            color: #fff !important;
            background: transparent !important;
            border-radius: 28px !important;
            padding: 13px 32px !important;
            font-weight: 600 !important;
            font-size: 1rem !important;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            margin-left: 12px;
        }

        .btn-outline-light-custom:hover {
            border-color: #fff !important;
            background: rgba(255, 255, 255, 0.08) !important;
        }

        /* ===== FOOTER ===== */
        .footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 28px;
            font-size: 0.9rem;
        }

        .footer h4 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .footer h5 {
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer p {
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer ul li {
            margin-bottom: 7px;
        }

        .footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }

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

        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 20px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
            line-height: 1.6;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .page-banner {
                min-height: 340px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
            .page-banner .banner-desc {
                font-size: 1rem;
                max-width: 480px;
            }
            .section {
                padding: 52px 0;
            }
            .section-header h2 {
                font-size: 1.85rem;
            }
            .master-story .story-text {
                padding: 24px 20px;
            }
            .master-story .story-text .story-quote {
                font-size: 1.1rem;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .search-input {
                width: 150px !important;
            }
        }

        @media (max-width: 768px) {
            .navbar {
                min-height: 60px;
            }
            .navbar-brand {
                font-size: 1.15rem;
            }
            .navbar-nav {
                gap: 0;
                padding: 8px 0;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.9rem;
            }
            .navbar .d-flex {
                flex-direction: column;
                gap: 8px;
                padding: 10px 0;
            }
            .search-input {
                width: 100% !important;
            }
            .btn-outline-accent {
                width: 100%;
                text-align: center;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
                max-width: 100%;
            }
            .page-banner .banner-content {
                padding: 40px 0;
            }
            .section {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .craft-card .craft-body {
                padding: 16px 14px 18px;
            }
            .craft-card .craft-body h3 {
                font-size: 1.05rem;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .stat-card .stat-icon {
                font-size: 1.7rem;
            }
            .process-step {
                gap: 14px;
            }
            .process-step .step-marker {
                width: 40px;
                height: 40px;
                font-size: 0.95rem;
            }
            .process-step:not(:last-child)::after {
                left: 19px;
                top: 50px;
            }
            .cta-section .cta-content {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 1.45rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .btn-accent,
            .btn-outline-light-custom {
                padding: 11px 24px !important;
                font-size: 0.9rem !important;
            }
            .btn-outline-light-custom {
                margin-left: 8px;
            }
            .footer {
                padding: 36px 0 20px;
            }
            .footer .col-md-4 {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 1.55rem;
            }
            .page-banner .banner-desc {
                font-size: 0.82rem;
            }
            .page-banner .banner-tag {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .section-header .section-subtitle {
                font-size: 0.85rem;
            }
            .craft-card .craft-body h3 {
                font-size: 0.95rem;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.7rem;
            }
            .master-story .story-text .story-quote {
                font-size: 1rem;
                padding-left: 14px;
                border-left-width: 2px;
            }
            .cta-section h2 {
                font-size: 1.25rem;
            }
            .btn-outline-light-custom {
                margin-left: 0;
                margin-top: 8px;
            }
            .cta-section .d-flex {
                flex-direction: column;
                align-items: center;
                gap: 8px;
            }
            .footer h4 {
                font-size: 1rem;
            }
            .footer h5 {
                font-size: 0.85rem;
            }
            .process-step .step-body h4 {
                font-size: 0.95rem;
            }
            .process-step .step-body p {
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1c1c1e;
            --color-accent: #b8935a;
            --color-accent-light: #d4b87a;
            --color-accent-dark: #8c6e3d;
            --color-bg: #ffffff;
            --color-bg-alt: #f9f7f3;
            --color-bg-warm: #fdfaf5;
            --color-text: #2d2d2d;
            --color-text-soft: #6b6b6b;
            --color-text-light: #8a8a8a;
            --color-border: #e8e4dc;
            --color-border-light: #f0ede7;
            --color-white: #ffffff;
            --color-success: #5a8a6a;
            --color-warning: #c9a050;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.13);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
            --font-heading: 'Georgia', 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', serif;
            --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            letter-spacing: 0.01em;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            line-height: 1.35;
        }

        a {
            color: var(--color-text);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
        }

        /* ========== NAVBAR ========== */
        .navbar {
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding-top: 0.6rem;
            padding-bottom: 0.6rem;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-smooth);
        }
        .navbar.sticky-top {
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar.scrolled {
            box-shadow: var(--shadow-md);
        }
        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary) !important;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: color var(--transition-fast);
        }
        .navbar-brand:hover {
            color: var(--color-accent) !important;
        }
        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            object-fit: cover;
        }
        .navbar-nav .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            padding: 0.5rem 1rem;
            letter-spacing: 0.03em;
            position: relative;
            transition: color var(--transition-fast);
            border-radius: var(--radius-sm);
        }
        .navbar-nav .nav-link:hover {
            color: var(--color-accent);
        }
        .navbar-nav .nav-link.active {
            color: var(--color-accent-dark);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2.5px;
            background: var(--color-accent);
            border-radius: 3px;
        }
        .search-input {
            border: 1.5px solid var(--color-border);
            border-radius: 25px;
            padding: 0.45rem 1.1rem;
            font-size: 0.85rem;
            background: var(--color-bg-alt);
            transition: all var(--transition-fast);
            color: var(--color-text);
        }
        .search-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(184, 147, 90, 0.10);
            background: var(--color-white);
        }
        .btn-outline-accent {
            border: 1.5px solid var(--color-accent);
            color: var(--color-accent-dark);
            background: transparent;
            border-radius: 25px;
            padding: 0.45rem 1.4rem;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-accent:hover {
            background: var(--color-accent);
            color: var(--color-white);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }
        .btn-outline-accent:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(184, 147, 90, 0.15);
            outline: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231c1c1e' stroke-width='2.2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        @media (max-width: 991.98px) {
            .navbar-nav {
                padding-top: 0.8rem;
                gap: 0.3rem;
            }
            .navbar-nav .nav-link {
                padding: 0.6rem 1rem;
                border-radius: var(--radius-md);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                background: var(--color-bg-alt);
                border-radius: var(--radius-md);
            }
            .navbar .d-flex.align-items-center {
                margin-top: 0.6rem;
                width: 100%;
            }
            .search-input {
                width: 100% !important;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background: linear-gradient(135deg, #1c1c1e 0%, #2a2a2d 40%, #1f1f22 100%);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 35%;
            background-blend-mode: overlay;
            min-height: 380px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(28, 28, 30, 0.65) 0%, rgba(28, 28, 30, 0.78) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: var(--color-white);
            padding: var(--spacing-2xl) 0;
        }
        .page-banner .banner-tag {
            display: inline-block;
            background: rgba(184, 147, 90, 0.3);
            border: 1px solid rgba(184, 147, 90, 0.5);
            color: #e8d5a8;
            padding: 0.3rem 1rem;
            border-radius: 25px;
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            font-weight: 500;
            margin-bottom: 1rem;
        }
        .page-banner h1 {
            color: #ffffff;
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 0.8rem;
            line-height: 1.2;
        }
        .page-banner .banner-subtitle {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            letter-spacing: 0.03em;
        }

        @media (max-width: 767.98px) {
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-warm {
            background-color: var(--color-bg-warm);
        }
        .section-dark {
            background-color: var(--color-primary);
            color: var(--color-white);
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: 0.04em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--color-text-soft);
            font-size: 0.95rem;
            max-width: 650px;
            margin: 0 auto 2.5rem;
            letter-spacing: 0.02em;
        }
        .section-divider {
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 0.8rem auto 0;
            border-radius: 2px;
        }

        /* ========== CARDS ========== */
        .trend-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
        }
        .trend-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }
        .trend-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #eae6df;
        }
        .trend-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .trend-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .trend-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            z-index: 1;
        }
        .trend-card .card-body {
            padding: 1.3rem 1.4rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .trend-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            line-height: 1.4;
        }
        .trend-card .card-text {
            color: var(--color-text-soft);
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
        }
        .trend-card .card-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-top: 1rem;
            padding-top: 0.8rem;
            border-top: 1px solid var(--color-border-light);
            font-size: 0.78rem;
            color: var(--color-text-light);
        }
        .trend-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            color: var(--color-accent-dark);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            transition: gap var(--transition-fast);
            margin-top: 0.6rem;
        }
        .trend-card .card-link:hover {
            color: var(--color-accent);
            gap: 0.6rem;
        }
        .trend-card .card-link i {
            font-size: 0.7rem;
        }

        /* ========== DATA BOARD ========== */
        .data-board {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }
        .data-stat {
            text-align: center;
            padding: 1rem 0.5rem;
        }
        .data-stat .stat-number {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-accent-dark);
            letter-spacing: 0.03em;
            line-height: 1;
        }
        .data-stat .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-soft);
            margin-top: 0.4rem;
            letter-spacing: 0.03em;
        }
        .data-stat .stat-change {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.15rem 0.55rem;
            border-radius: 12px;
            margin-top: 0.3rem;
        }
        .stat-up {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .stat-neutral {
            background: #fff8e1;
            color: #8d6e00;
        }

        /* ========== DEEP LIST ========== */
        .deep-list-item {
            display: flex;
            gap: 1.5rem;
            padding: 1.8rem 1.5rem;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            margin-bottom: 1rem;
            transition: all var(--transition-smooth);
            align-items: flex-start;
        }
        .deep-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateX(3px);
        }
        .deep-list-num {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            min-width: 40px;
            flex-shrink: 0;
        }
        .deep-list-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.35rem;
            color: var(--color-primary);
        }
        .deep-list-content p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin-bottom: 0;
            line-height: 1.6;
        }
        @media (max-width: 767.98px) {
            .deep-list-item {
                flex-direction: column;
                gap: 0.6rem;
                padding: 1.2rem;
            }
            .deep-list-num {
                font-size: 1.5rem;
            }
        }

        /* ========== BUTTONS ========== */
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: 25px;
            padding: 0.65rem 1.8rem;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .btn-accent:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-accent-outline {
            background: transparent;
            color: var(--color-accent-dark);
            border: 2px solid var(--color-accent);
            border-radius: 25px;
            padding: 0.6rem 1.7rem;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-smooth);
        }
        .btn-accent-outline:hover {
            background: var(--color-accent);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        /* ========== FAQ ========== */
        .faq-section .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.6rem;
            overflow: hidden;
            background: var(--color-white);
        }
        .faq-section .accordion-button {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-primary);
            background: var(--color-white);
            padding: 1.1rem 1.3rem;
            letter-spacing: 0.02em;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }
        .faq-section .accordion-button:not(.collapsed) {
            color: var(--color-accent-dark);
            background: var(--color-bg-warm);
            box-shadow: none;
        }
        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(184, 147, 90, 0.12);
            border-color: var(--color-accent);
        }
        .faq-section .accordion-body {
            padding: 1rem 1.3rem 1.3rem;
            color: var(--color-text-soft);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1c1c1e 0%, #252528 50%, #1a1a1d 100%);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(28, 28, 30, 0.82);
            z-index: 1;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: var(--spacing-2xl) 0;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.05em;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            max-width: 550px;
            margin: 0.8rem auto 1.8rem;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 1.5rem;
            font-size: 0.88rem;
        }
        .footer h4,
        .footer h5 {
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .footer h4 {
            font-size: 1.25rem;
            margin-bottom: 0.6rem;
        }
        .footer h5 {
            font-size: 0.95rem;
            margin-bottom: 0.8rem;
        }
        .footer p {
            margin-bottom: 0.3rem;
            line-height: 1.7;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer a:hover {
            color: var(--color-accent-light);
        }
        .footer ul {
            padding: 0;
            list-style: none;
        }
        .footer ul li {
            margin-bottom: 0.35rem;
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            margin-top: 2rem;
            padding-top: 1.5rem;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.8rem;
            text-align: center;
            letter-spacing: 0.03em;
        }
        @media (max-width: 767.98px) {
            .footer {
                padding: 2rem 0 1rem;
            }
            .footer .copyright {
                margin-top: 1.2rem;
                padding-top: 1rem;
            }
        }

        /* ========== TAG / BADGE ========== */
        .tag-pill {
            display: inline-block;
            background: var(--color-bg-alt);
            color: var(--color-text-soft);
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            font-size: 0.76rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .tag-pill:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }

        /* ========== MISC ========== */
        .text-accent {
            color: var(--color-accent-dark) !important;
        }
        .bg-warm-light {
            background: var(--color-bg-warm);
        }
        .fw-semibold {
            font-weight: 600;
        }
        .letter-spaced {
            letter-spacing: 0.05em;
        }
        @media (max-width: 575.98px) {
            .section {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .data-stat .stat-number {
                font-size: 2rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .trend-card .card-title {
                font-size: 1rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1c1c1e;
            --color-accent: #b8944b;
            --color-accent-light: #d4b978;
            --color-accent-dark: #8a6d32;
            --color-bg: #fafaf7;
            --color-surface: #ffffff;
            --color-text: #2c2c2e;
            --color-text-weak: #6e6e73;
            --color-text-lighter: #9a9a9f;
            --color-border: #e8e8ea;
            --color-border-light: #f0f0f2;
            --color-highlight: #faf8f3;
            --color-tag-bg: #f5f2ea;
            --color-tag-text: #8a6d32;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 56px rgba(0, 0, 0, 0.13);
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1.25rem;
            --spacing-lg: 2rem;
            --spacing-xl: 3rem;
            --spacing-2xl: 4.5rem;
            --spacing-3xl: 6rem;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'Georgia', 'Noto Serif SC', 'STSong', 'Songti SC', serif;
            --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

        *,
        *::before,
        *::after {
            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(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            letter-spacing: 0.01em;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

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

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            line-height: 1.3;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }

        .container {
            max-width: 1200px;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        /* ========== NAVBAR ========== */
        .navbar {
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            padding: 0.6rem 0;
            z-index: 1030;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-base);
        }
        .navbar.scrolled {
            box-shadow: var(--shadow-md);
        }
        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary) !important;
            letter-spacing: 0.04em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .navbar-brand:hover {
            color: var(--color-accent) !important;
        }
        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            margin-right: 0.5rem;
            vertical-align: middle;
        }
        .navbar-nav .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-weak);
            padding: 0.55rem 1.1rem !important;
            border-radius: var(--radius-sm);
            letter-spacing: 0.025em;
            transition: color var(--transition-fast), background-color var(--transition-fast);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--color-accent);
            background-color: var(--color-highlight);
        }
        .navbar-nav .nav-link.active {
            color: var(--color-accent-dark) !important;
            background-color: var(--color-tag-bg);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2.5px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .search-input {
            border: 1.5px solid var(--color-border);
            border-radius: 24px;
            padding: 0.45rem 1.1rem;
            font-size: 0.9rem;
            background: var(--color-surface);
            transition: all var(--transition-fast);
            outline: none;
            color: var(--color-text);
        }
        .search-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(184, 148, 75, 0.10);
            background: #fff;
        }
        .search-input::placeholder {
            color: var(--color-text-lighter);
        }
        .btn-outline-accent {
            border: 1.5px solid var(--color-accent);
            color: var(--color-accent);
            background: transparent;
            border-radius: 24px;
            padding: 0.45rem 1.4rem;
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline-accent:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-accent:active {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
            color: #fff;
        }
        .navbar-toggler {
            border: none;
            padding: 0.3rem 0.5rem;
            color: var(--color-primary);
            box-shadow: none;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(184, 148, 75, 0.15);
            outline: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(44,44,46,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: #fff;
                border-radius: var(--radius-md);
                padding: 1rem;
                margin-top: 0.6rem;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--color-border-light);
            }
            .navbar-nav .nav-link {
                padding: 0.7rem 1rem !important;
                border-radius: var(--radius-sm);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar .d-flex.align-items-center {
                margin-top: 0.6rem;
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .search-input {
                width: 100% !important;
            }
            .btn-outline-accent {
                width: 100%;
                text-align: center;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(28, 28, 30, 0.55) 0%,
                    rgba(28, 28, 30, 0.35) 50%,
                    rgba(28, 28, 30, 0.60) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            text-align: center;
            width: 100%;
        }
        .page-banner-content .banner-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 0.35rem 1.2rem;
            border-radius: 20px;
            font-size: 0.85rem;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-md);
            font-weight: 500;
        }
        .page-banner-content h1 {
            color: #fff;
            font-size: 2.8rem;
            letter-spacing: 0.05em;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
            margin-bottom: 0.5rem;
        }
        .page-banner-content .banner-sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.88);
            letter-spacing: 0.04em;
            max-width: 600px;
            margin: 0 auto;
            text-shadow: 0 1px 6px rgba(0, 0, 0, 0.2);
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 280px;
            }
            .page-banner-content h1 {
                font-size: 2rem;
            }
            .page-banner-content .banner-sub {
                font-size: 0.95rem;
                padding: 0 0.5rem;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-tight {
            padding: var(--spacing-xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-header h2 {
            font-size: 1.9rem;
            margin-bottom: 0.6rem;
            letter-spacing: 0.03em;
        }
        .section-header .section-lead {
            color: var(--color-text-weak);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
            letter-spacing: 0.02em;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 0.8rem auto;
            opacity: 0.7;
        }

        /* ========== CARDS ========== */
        .card-brand {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            background: var(--color-surface);
            overflow: hidden;
            transition: all var(--transition-slow);
            height: 100%;
            box-shadow: var(--shadow-xs);
        }
        .card-brand:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-brand .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: #f5f5f3;
        }
        .card-brand .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-brand:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-brand .card-img-overlay-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(28, 28, 30, 0.72);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #fff;
            padding: 0.25rem 0.75rem;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .card-brand .card-body {
            padding: var(--spacing-md) var(--spacing-lg);
        }
        .card-brand .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 0.4rem;
            letter-spacing: 0.025em;
            transition: color var(--transition-fast);
        }
        .card-brand:hover .card-body h3 {
            color: var(--color-accent-dark);
        }
        .card-brand .card-body p {
            color: var(--color-text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
            letter-spacing: 0.015em;
        }
        .card-brand .card-meta {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-top: 0.6rem;
            font-size: 0.8rem;
            color: var(--color-text-lighter);
            letter-spacing: 0.02em;
        }

        /* ========== DATA STATS ========== */
        .stats-bar {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl) var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            gap: var(--spacing-md);
            text-align: center;
        }
        .stat-item {
            flex: 1 1 180px;
            min-width: 140px;
            padding: 0.8rem;
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.03em;
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            margin-top: 0.3rem;
            letter-spacing: 0.03em;
        }
        .stat-desc {
            font-size: 0.78rem;
            color: var(--color-text-lighter);
            margin-top: 0.15rem;
        }

        /* ========== CONTENT LIST ========== */
        .insight-list-item {
            display: flex;
            gap: var(--spacing-lg);
            padding: var(--spacing-lg);
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            margin-bottom: var(--spacing-md);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-xs);
            align-items: center;
        }
        .insight-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateX(3px);
        }
        .insight-list-item .insight-thumb {
            flex-shrink: 0;
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #f5f5f3;
        }
        .insight-list-item .insight-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .insight-list-item:hover .insight-thumb img {
            transform: scale(1.07);
        }
        .insight-list-item .insight-body {
            flex: 1;
            min-width: 0;
        }
        .insight-list-item .insight-body h4 {
            font-size: 1.05rem;
            margin-bottom: 0.3rem;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }
        .insight-list-item:hover .insight-body h4 {
            color: var(--color-accent-dark);
        }
        .insight-list-item .insight-body p {
            color: var(--color-text-weak);
            font-size: 0.88rem;
            margin-bottom: 0;
            line-height: 1.5;
        }
        .insight-list-item .insight-body .insight-date {
            font-size: 0.78rem;
            color: var(--color-text-lighter);
            letter-spacing: 0.03em;
            margin-top: 0.3rem;
        }
        @media (max-width: 600px) {
            .insight-list-item {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .insight-list-item .insight-thumb {
                width: 100%;
                height: 180px;
            }
        }

        /* ========== BADGE / TAG ========== */
        .tag-pill {
            display: inline-block;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .tag-pill:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }

        /* ========== FEATURED BLOCK ========== */
        .featured-block {
            display: flex;
            gap: var(--spacing-xl);
            align-items: center;
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
        }
        .featured-block .featured-img {
            flex: 1 1 50%;
            min-height: 340px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .featured-block .featured-body {
            flex: 1 1 50%;
            padding: var(--spacing-xl);
        }
        .featured-block .featured-body h3 {
            font-size: 1.5rem;
            margin-bottom: 0.6rem;
            letter-spacing: 0.03em;
        }
        .featured-block .featured-body p {
            color: var(--color-text-weak);
            line-height: 1.7;
            letter-spacing: 0.015em;
        }
        @media (max-width: 768px) {
            .featured-block {
                flex-direction: column;
            }
            .featured-block .featured-img {
                width: 100%;
                min-height: 240px;
                flex: none;
            }
            .featured-block .featured-body {
                padding: var(--spacing-lg);
            }
        }

        /* ========== FAQ ACCORDION ========== */
        .accordion-faq .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.7rem;
            background: var(--color-surface);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-base);
        }
        .accordion-faq .accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .accordion-faq .accordion-button {
            font-family: var(--font-body);
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-primary);
            background: var(--color-surface);
            padding: 1rem 1.3rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            border-radius: var(--radius-md) !important;
            box-shadow: none !important;
        }
        .accordion-faq .accordion-button:not(.collapsed) {
            color: var(--color-accent-dark);
            background: var(--color-highlight);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: none;
        }
        .accordion-faq .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(184, 148, 75, 0.12) !important;
            border-color: var(--color-accent-light);
        }
        .accordion-faq .accordion-button::after {
            transition: transform var(--transition-base);
        }
        .accordion-faq .accordion-body {
            padding: 1rem 1.3rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            font-size: 0.92rem;
            letter-spacing: 0.015em;
            background: #fff;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: var(--spacing-2xl) var(--spacing-md);
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(184, 148, 75, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(212, 185, 120, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            position: relative;
            z-index: 1;
            letter-spacing: 0.04em;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            position: relative;
            z-index: 1;
            max-width: 520px;
            margin: 0.6rem auto 1.4rem;
            letter-spacing: 0.02em;
        }
        .btn-accent-solid {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: 28px;
            padding: 0.7rem 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }
        .btn-accent-solid:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .btn-accent-solid:active {
            background: var(--color-accent-dark);
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.78);
            padding: var(--spacing-2xl) 0 var(--spacing-md);
            margin-top: var(--spacing-2xl);
            letter-spacing: 0.02em;
            font-size: 0.9rem;
        }
        .footer h4,
        .footer h5 {
            color: #fff;
            font-family: var(--font-heading);
            letter-spacing: 0.04em;
            margin-bottom: 0.8rem;
        }
        .footer h4 {
            font-size: 1.3rem;
        }
        .footer h5 {
            font-size: 1rem;
            font-family: var(--font-body);
            font-weight: 600;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer a:hover {
            color: var(--color-accent-light);
            text-decoration: none;
        }
        .footer ul li {
            margin-bottom: 0.4rem;
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: var(--spacing-md);
            margin-top: var(--spacing-lg);
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8rem;
            letter-spacing: 0.03em;
            text-align: center;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            background: transparent;
            padding: 0.8rem 0;
            font-size: 0.85rem;
            color: var(--color-text-lighter);
            letter-spacing: 0.03em;
        }
        .breadcrumb-wrap a {
            color: var(--color-text-weak);
            transition: color var(--transition-fast);
        }
        .breadcrumb-wrap a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-wrap .separator {
            margin: 0 0.5rem;
            color: var(--color-text-lighter);
        }
        .breadcrumb-wrap .current {
            color: var(--color-accent-dark);
            font-weight: 500;
        }

        /* ========== RESPONSIVE ADJUSTMENTS ========== */
        @media (max-width: 1024px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.45rem;
            }
            .page-banner-content h1 {
                font-size: 1.7rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .stats-bar {
                gap: var(--spacing-sm);
                padding: var(--spacing-md);
            }
            .card-brand .card-body {
                padding: var(--spacing-sm) var(--spacing-md);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 0.9rem;
                padding-right: 0.9rem;
            }
            h1 {
                font-size: 1.55rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .navbar-brand {
                font-size: 1.25rem;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner-content h1 {
                font-size: 1.45rem;
            }
            .page-banner-content .banner-sub {
                font-size: 0.85rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .stat-item {
                flex: 1 1 120px;
                min-width: 100px;
                padding: 0.5rem;
            }
        }