/* roulang page: index */
:root {
  --primary: #1B4D3E;
  --primary-dark: #14372E;
  --primary-light: #E5EFEB;
  --accent: #C8A04B;
  --accent-light: #F3E8D2;
  --bg-base: #FAF7F2;
  --bg-alt: #F2EDE4;
  --text-main: #1F2937;
  --text-secondary: #5C6B5C;
  --text-subtle: #8A9B8A;
  --line: #E5DDCE;
  --white: #FFFFFF;
  --alert: #A94E3A;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--bg-base);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
button,
input {
  font-family: inherit;
  outline: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}
.font-serif-sc {
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
}
.nav-link {
  position: relative;
  padding: 6px 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  transition: color 0.2s ease;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  width: 100%;
  background: var(--accent);
}
.card-hover {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(27, 77, 62, 0.08);
  border-color: rgba(27, 77, 62, 0.3);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(27, 77, 62, 0.2);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.2s ease;
  background: transparent;
  cursor: pointer;
}
.btn-outline:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}
.btn-outline:active {
  transform: scale(0.98);
}
.btn-outline:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  color: var(--primary);
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}
.btn-white:hover {
  background: var(--accent-light);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}
.btn-white:active {
  transform: scale(0.98);
}
.btn-white:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary);
}
.badge-accent {
  background: var(--accent-light);
  color: var(--primary);
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:first-child {
  border-top: 1px solid var(--line);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px;
  cursor: pointer;
  font-weight: 500;
  font-size: 16px;
  transition: color 0.2s;
}
.faq-q .faq-icon {
  width: 24px;
  height: 24px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: transform 0.25s ease, border-color 0.25s;
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-item.active .faq-q {
  color: var(--primary);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  border-color: var(--primary);
}
.faq-a {
  display: none;
  padding: 0 4px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}
.faq-item.active .faq-a {
  display: block;
}
.hero-dots {
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-top: 8px;
}
@media (max-width: 768px) {
  .section-title {
    font-size: 26px;
  }
}
.img-fallback {
  background-color: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #bbb;
  position: relative;
}
.field-input {
  width: 100%;
  padding: 13px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--white);
  font-size: 14px;
  color: var(--text-main);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 77, 62, 0.12);
}
.field-input::placeholder {
  color: var(--text-subtle);
}
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.mobile-menu.open {
  max-height: 360px;
}
.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
@media (max-width: 640px) {
  .line-clamp-1-sm {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* roulang page: category1 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #14372E;
            --primary-light: #E5EFEB;
            --accent: #C8A04B;
            --accent-light: #F3E8D2;
            --bg-base: #FAF7F2;
            --bg-alt: #F2EDE4;
            --text-main: #1F2937;
            --text-secondary: #5C6B5C;
            --text-subtle: #8A9B8A;
            --line: #E5DDCE;
            --alert: #A94E3A;
            --white: #FFFFFF;
            --radius: 16px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 30px rgba(0,0,0,0.08);
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button, input { font-family: inherit; }
        .container { max-width: 1200px; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
        @media (min-width: 768px) {
            .container { padding-left: 1.5rem; padding-right: 1.5rem; }
        }
        .section-padding { padding: 64px 0; }
        @media (min-width: 768px) { .section-padding { padding: 96px 0; } }

        /* Topbar */
        .topbar {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.85);
            font-size: 0.75rem;
            padding: 6px 0;
            letter-spacing: 0.04em;
        }
        .topbar .dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 999px;
            display: inline-block;
            margin-right: 6px;
        }

        /* Nav */
        .main-nav {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(250, 247, 242, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }
        .nav-link {
            position: relative;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            transition: color 0.2s ease;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            height: 2px;
            width: 0;
            background: var(--accent);
            border-radius: 2px;
            transition: width 0.2s ease;
        }
        .nav-link:hover { color: var(--primary); }
        .nav-link:hover::after { width: 100%; }
        .nav-link.active { color: var(--primary); font-weight: 600; }
        .nav-link.active::after { width: 100%; background: var(--accent); }

        /* Logo */
        .logo-mark {
            width: 42px;
            height: 42px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 0.9rem;
            letter-spacing: -0.02em;
        }
        .logo-text { line-height: 1.2; }
        .logo-text .cn { font-weight: 700; font-size: 1.15rem; color: var(--text-main); }
        .logo-text .en { font-size: 0.6rem; letter-spacing: 0.22em; color: var(--text-subtle); }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.2s ease;
            border: 1px solid transparent;
            cursor: pointer;
            line-height: 1.2;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-primary { background: var(--primary); color: #fff; }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(27,77,62,0.18); }
        .btn-primary:active { transform: scale(0.98); }
        .btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background: var(--primary-light); border-color: var(--primary); }
        .btn-outline:active { transform: scale(0.98); }
        .btn-light { background: #fff; color: var(--primary); font-weight: 600; }
        .btn-light:hover { background: var(--accent-light); box-shadow: 0 8px 24px rgba(0,0,0,0.12); transform: translateY(-2px); }
        .btn-light:active { transform: scale(0.98); }

        /* Eyebrow */
        .eyebrow {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .eyebrow-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid var(--accent);
            color: var(--accent);
            background: rgba(200,160,75,0.08);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.06em;
        }

        /* Page Header */
        .page-header {
            position: relative;
            overflow: hidden;
            background: var(--primary-dark);
        }
        .page-header .bg-img {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }
        .page-header .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(20,55,46,0.92) 0%, rgba(20,55,46,0.75) 60%, rgba(27,77,62,0.55) 100%);
        }
        .page-header .content {
            position: relative;
            z-index: 1;
        }

        /* Feature cards */
        .feature-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(27,77,62,0.3);
        }
        .feature-card .icon-box {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }
        .feature-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }

        /* Guide cards */
        .guide-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .guide-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(27,77,62,0.3);
        }
        .guide-card .thumb { aspect-ratio: 16/9; overflow: hidden; }
        .guide-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
        .guide-card:hover .thumb img { transform: scale(1.04); }
        .guide-card .card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }

        /* Stats */
        .stat-number { font-size: 2.2rem; font-weight: 800; color: var(--primary); line-height: 1.1; font-variant-numeric: tabular-nums; }
        .stat-label { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }

        /* CTA Banner */
        .cta-banner {
            position: relative;
            border-radius: 24px;
            background: var(--primary-dark);
            padding: 56px 40px;
            overflow: hidden;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -40px;
            width: 260px;
            height: 260px;
            border: 2px solid rgba(200,160,75,0.25);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 220px;
            height: 220px;
            border: 2px solid rgba(200,160,75,0.15);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner .cta-content { position: relative; z-index: 1; }
        .cta-banner h2 { color: #fff; font-size: 2rem; font-weight: 700; }
        .cta-banner p { color: rgba(255,255,255,0.75); }

        /* Form */
        .form-email {
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 12px 20px;
            background: #fff;
            width: 100%;
            color: var(--text-main);
            transition: border-color 0.2s, box-shadow 0.2s;
            font-size: 0.9rem;
        }
        .form-email:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27,77,62,0.15);
        }
        .form-email.error { border-color: var(--alert); }

        /* Footer */
        .site-footer { background: var(--primary-dark); }
        .footer-link { color: rgba(255,255,255,0.6); font-size: 0.85rem; transition: color 0.2s; }
        .footer-link:hover { color: var(--accent); }

        /* Mobile menu */
        .mobile-menu {
            background: var(--bg-base);
            border-bottom: 1px solid var(--line);
            padding: 16px 20px;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid var(--line);
            font-weight: 500;
            color: var(--text-secondary);
        }
        .mobile-menu a:last-child { border-bottom: none; }
        .mobile-menu a.active { color: var(--primary); }
        .mobile-menu .btn { margin-top: 16px; width: 100%; }

        @media (max-width: 640px) {
            .cta-banner { padding: 40px 24px; }
            .cta-banner h2 { font-size: 1.6rem; }
        }

/* roulang page: article */
:root {
            --primary: #1B4D3E;
            --primary-dark: #14372E;
            --primary-light: #E5EFEB;
            --accent: #C8A04B;
            --accent-light: #F3E8D2;
            --bg-base: #FAF7F2;
            --bg-alt: #F2EDE4;
            --text-main: #1F2937;
            --text-secondary: #5C6B5C;
            --text-subtle: #8A9B8A;
            --line: #E5DDCE;
            --white: #FFFFFF;
            --alert: #A94E3A;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        .nav-link {
            position: relative;
            font-size: 0.925rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-main);
            padding: 0.5rem 0.125rem;
            transition: color 0.2s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
            transition: width 0.2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

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

        .nav-link.active::after {
            width: 100%;
            background-color: var(--accent);
            height: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--primary);
            color: #fff;
            font-weight: 500;
            padding: 0.75rem 1.5rem;
            border-radius: 9999px;
            font-size: 0.9375rem;
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(27, 77, 62, 0.18);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        .btn-white:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            font-weight: 500;
            padding: 0.7rem 1.4rem;
            border-radius: 9999px;
            font-size: 0.9375rem;
            transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
            cursor: pointer;
        }

        .btn-outline:hover {
            background-color: var(--primary-light);
            border-color: var(--primary-dark);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: #fff;
            color: var(--primary);
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 9999px;
            font-size: 0.9375rem;
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            border: none;
            cursor: pointer;
        }

        .btn-white:hover {
            background-color: var(--accent-light);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .btn-white:active {
            transform: scale(0.98);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            line-height: 1.6;
        }

        .badge-gold {
            background-color: var(--accent-light);
            color: var(--primary);
            border: 1px solid rgba(200, 160, 75, 0.35);
        }

        .badge-solid {
            background-color: var(--primary);
            color: #fff;
        }

        .card {
            background-color: #fff;
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
        }

        .card:hover {
            box-shadow: 0 16px 40px rgba(27, 77, 62, 0.08);
            transform: translateY(-4px);
            border-color: rgba(27, 77, 62, 0.25);
        }

        .article-content {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-main);
        }

        .article-content p {
            margin-bottom: 1.5rem;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 0.875rem;
            color: var(--text-main);
            padding-left: 0.875rem;
            border-left: 3px solid var(--accent);
        }

        .article-content h4 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-top: 1.75rem;
            margin-bottom: 0.75rem;
            color: var(--text-main);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5rem 1.25rem;
            padding: 0;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 0.5rem;
            padding-left: 0.25rem;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content blockquote {
            border-left: 3px solid var(--accent);
            background-color: var(--bg-alt);
            padding: 1.25rem 1.5rem;
            border-radius: 0.5rem;
            margin: 0 0 1.5rem 0;
            font-style: normal;
            color: var(--text-secondary);
        }

        .article-content blockquote p {
            margin-bottom: 0;
        }

        .article-content img {
            border-radius: 0.5rem;
            margin-bottom: 0.75rem;
        }

        .article-content img+em {
            display: block;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-subtle);
            margin-bottom: 1.5rem;
        }

        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(27, 77, 62, 0.25);
            transition: border-color 0.2s ease, color 0.2s ease;
        }

        .article-content a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary-dark);
        }

        .article-content strong {
            font-weight: 600;
            color: var(--text-main);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 1.5rem;
            font-size: 0.9375rem;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--line);
            padding: 0.625rem 0.875rem;
            text-align: left;
        }

        .article-content table th {
            background-color: var(--bg-alt);
            font-weight: 600;
        }

        .article-content hr {
            border: none;
            border-top: 1px solid var(--line);
            margin: 2rem 0;
        }

        .tag-pill {
            display: inline-block;
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            font-size: 0.8125rem;
            background-color: var(--bg-alt);
            color: var(--text-secondary);
            border: 1px solid var(--line);
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .tag-pill:hover {
            background-color: var(--primary-light);
            color: var(--primary);
            border-color: rgba(27, 77, 62, 0.3);
        }

        .input-subscribe {
            width: 100%;
            padding: 0.875rem 1.5rem;
            padding-left: 2.875rem;
            border-radius: 9999px;
            border: 1px solid var(--line);
            background-color: #fff;
            font-size: 0.9375rem;
            color: var(--text-main);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .input-subscribe:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 77, 62, 0.15);
        }

        .input-subscribe::placeholder {
            color: var(--text-subtle);
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            line-height: 1.3;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.375rem 1rem;
            border-radius: 9999px;
            border: 1px solid rgba(200, 160, 75, 0.4);
            background-color: var(--accent-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: var(--accent);
        }

        .menu-panel {
            transform: scaleY(0);
            transform-origin: top;
            opacity: 0;
            visibility: hidden;
            transition: transform 0.25s ease, opacity 0.2s ease, visibility 0.25s;
        }

        .menu-panel.open {
            transform: scaleY(1);
            opacity: 1;
            visibility: visible;
        }

        @media (max-width: 767px) {
            .desktop-nav {
                display: none;
            }
        }

        @media (min-width: 768px) {
            .mobile-nav {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
    --primary: #1B4D3E;
    --primary-dark: #14372E;
    --primary-light: #E5EFEB;
    --accent: #C8A04B;
    --accent-light: #F3E8D2;
    --bg-base: #FAF7F2;
    --bg-alt: #F2EDE4;
    --text-main: #1F2937;
    --text-secondary: #5C6B5C;
    --text-subtle: #8A9B8A;
    --line: #E5DDCE;
    --white: #FFFFFF;
    --alert: #A94E3A;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  button { font-family: inherit; cursor: pointer; }
  input { font-family: inherit; }
  .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

  .nav-link {
    position: relative;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    padding: 0.5rem 0.25rem;
    transition: color 0.2s;
    letter-spacing: 0.02em;
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.2s ease;
  }
  .nav-link:hover { color: var(--primary); }
  .nav-link:hover::after { width: 100%; }
  .nav-link.active { color: var(--primary); }
  .nav-link.active::after { width: 100%; }

  .btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--primary); color: #fff;
    padding: 0.75rem 1.5rem; border-radius: 9999px;
    font-size: 0.875rem; font-weight: 500;
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    border: none;
  }
  .btn-primary:hover { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(27,77,62,0.2); transform: translateY(-1px); }
  .btn-primary:active { transform: scale(0.98); }

  .btn-outline {
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--primary); color: var(--primary);
    padding: 0.75rem 1.5rem; border-radius: 9999px;
    font-size: 0.875rem; font-weight: 500;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
    background: transparent;
  }
  .btn-outline:hover { background: var(--primary-light); border-color: var(--primary-dark); transform: translateY(-1px); }
  .btn-outline:active { transform: scale(0.98); }

  .card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  }
  .card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(20,55,46,0.08);
    border-color: rgba(27,77,62,0.3);
  }

  .badge {
    display: inline-flex; align-items: center; gap: 0.25rem;
    background: var(--accent-light);
    color: var(--primary);
    border-radius: 9999px;
    padding: 0.25rem 0.75rem;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.05em;
  }

  .eyebrow {
    display: inline-flex; align-items: center; gap: 0.375rem;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 9999px;
    padding: 0.3rem 0.9rem;
    font-size: 0.75rem;
    font-weight: 500;
  }

  .topics-icon {
    display: flex; align-items: center; justify-content: center;
    width: 2.75rem; height: 2.75rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 0.75rem;
  }

  .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
  .faq-item.active .faq-icon { transform: rotate(45deg); color: var(--primary); border-color: var(--primary); }
  .faq-item.active .faq-question-text { color: var(--primary); }
  .faq-icon {
    display: flex; align-items: center; justify-content: center;
    width: 1.5rem; height: 1.5rem;
    border: 1px solid var(--line);
    border-radius: 9999px;
    color: var(--text-secondary);
    font-size: 1.125rem; line-height: 1;
    transition: transform 0.2s, color 0.2s, border-color 0.2s;
    flex-shrink: 0;
  }
  .faq-question-text { transition: color 0.2s; }

  .cta-ring {
    position: absolute;
    border-radius: 9999px;
    border: 2px solid rgba(200, 160, 75, 0.25);
    pointer-events: none;
  }

  .input-email {
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 9999px;
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    color: var(--text-main);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
  }
  .input-email:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 77, 62, 0.12);
  }
  .input-email::placeholder { color: var(--text-subtle); }

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

  @media (max-width: 640px) {
    .container { padding: 0 1.25rem; }
    .topics-icon { width: 2.375rem; height: 2.375rem; }
  }