/* roulang page: index */
:root {
  --color-bg: #FAF9F6;
  --color-surface: #FFFFFF;
  --color-ink: #111827;
  --color-muted: #6B7280;
  --color-line: #E5E7EB;
  --color-primary: #0E7C6B;
  --color-primary-hover: #0B6356;
  --color-accent: #F97316;
  --color-accent-hover: #EA580C;
  --color-block: #FEF3C7;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 768px) { .container { padding: 0 20px; } }

.section { padding: 96px 0; }
@media (max-width: 768px) { .section { padding: 64px 0; } }

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-accent); color: #fff;
  font-size: 15px; font-weight: 500; height: 48px; padding: 0 28px;
  border-radius: 999px; border: none;
  transition: all .25s ease; letter-spacing: .02em;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249,115,22,.25);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--color-ink);
  font-size: 15px; font-weight: 500; height: 48px; padding: 0 28px;
  border-radius: 999px; border: 1.5px solid #D1D5DB;
  transition: all .25s ease;
}
.btn-secondary:hover {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
  transform: translateY(-2px);
}
.btn-secondary:active { transform: translateY(0); }

.badge {
  display: inline-flex; align-items: center; height: 24px; padding: 0 12px;
  background: rgba(14,124,107,.1); color: var(--color-primary);
  font-size: 12px; font-weight: 600; letter-spacing: .05em; border-radius: 999px;
}
.badge-lg {
  display: inline-flex; align-items: center; height: 30px; padding: 0 16px;
  border: 1px solid #D1D5DB; background: rgba(250,249,246,.7);
  color: var(--color-ink); font-size: 13px; font-weight: 500; border-radius: 999px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s ease;
}
.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.step-num {
  font-size: 56px; font-weight: 800;
  color: rgba(14,124,107,.16); line-height: 1;
  letter-spacing: -0.02em;
}
@media (max-width: 768px) {
  .step-num { font-size: 44px; }
}

.faq-item { border-bottom: 1px solid var(--color-line); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; font-size: 16px; font-weight: 500;
  cursor: pointer; transition: color .2s ease;
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  font-size: 22px; font-weight: 300; color: var(--color-muted);
  transition: transform .3s ease; line-height: 1;
  flex-shrink: 0; margin-left: 16px;
}
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
  padding: 0;
  color: var(--color-muted); font-size: 15px; line-height: 1.7;
}
.faq-item.active .faq-answer {
  max-height: 300px; padding: 0 0 18px;
}
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--color-primary); }

.cms-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px;
  display: flex; flex-direction: column; gap: 10px;
  transition: all .3s ease;
}
.cms-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.cms-card .cms-title {
  font-size: 17px; font-weight: 600; line-height: 1.45; color: var(--color-ink);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.cms-card .cms-excerpt {
  font-size: 14px; color: var(--color-muted); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.cms-card .cms-date { font-size: 13px; color: #9CA3AF; }
.cms-card .cms-cat {
  align-self: flex-start; font-size: 12px; font-weight: 600;
  color: var(--color-primary); background: rgba(14,124,107,.08);
  padding: 4px 10px; border-radius: 999px;
}

.cms-empty {
  border: 2px dashed var(--color-line); border-radius: var(--radius);
  padding: 56px 24px; text-align: center; color: var(--color-muted);
}

.footer-link {
  color: #9CA3AF; font-size: 14px; transition: color .2s ease; display: inline-block;
}
.footer-link:hover { color: #fff; }

.nav-link { position: relative; }
.nav-link::after {
  content: ''; position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--color-primary); border-radius: 2px;
  transition: width .25s ease;
}
.nav-link:hover::after { width: 20px; }
.nav-link.active { color: var(--color-primary); font-weight: 600; }
.nav-link.active::after { width: 20px; }

.mobile-menu { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.mobile-menu.open { max-height: 480px; }

.hero-bg {
  background-image: linear-gradient(to right, rgba(250,249,246,.97) 0%, rgba(250,249,246,.88) 45%, rgba(250,249,246,.55) 100%), url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
}

.cta-band {
  background:
    linear-gradient(rgba(28,25,23,.88), rgba(28,25,23,.92)),
    url('/assets/images/backpic/back-2.webp');
  background-size: cover; background-position: center;
}

.section-head { margin-bottom: 48px; }
.section-head .section-title { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; }
.section-head .section-sub { font-size: 15px; color: var(--color-muted); margin-top: 12px; max-width: 560px; }
@media (max-width: 768px) {
  .section-head .section-title { font-size: 24px; }
}

.step-card { position: relative; padding: 32px 28px; }
.step-card .step-desc { font-size: 15px; color: var(--color-muted); line-height: 1.7; }

.stat-item { text-align: center; padding: 24px 20px; }
.stat-item .stat-num { font-size: 36px; font-weight: 800; color: var(--color-primary); letter-spacing: -0.02em; }
.stat-item .stat-label { font-size: 13px; color: var(--color-muted); margin-top: 4px; }

.feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
@media (max-width: 1024px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .feature-grid { grid-template-columns: 1fr; } }

.testimonial-grid {
  display: grid; grid-template-columns: 2fr 1fr; gap: 24px;
}
@media (max-width: 768px) { .testimonial-grid { grid-template-columns: 1fr; } }

/* roulang page: article */
:root {
            --color-bg: #FAF9F6;
            --color-surface: #FFFFFF;
            --color-ink: #111827;
            --color-muted: #6B7280;
            --color-line: #E5E7EB;
            --color-primary: #0E7C6B;
            --color-primary-hover: #0B6356;
            --color-accent: #F97316;
            --color-accent-hover: #EA580C;
            --color-block: #FEF3C7;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background: var(--color-bg);
            color: var(--color-ink);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        .nav-link {
            position: relative;
            padding: 8px 2px;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: var(--color-primary);
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -2px;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 999px;
            font-weight: 500;
            font-size: 15px;
            transition: all 0.25s ease;
            border: none;
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            background: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: 999px;
            font-weight: 500;
            font-size: 15px;
            transition: all 0.25s ease;
        }
        .btn-outline:hover {
            background: var(--color-ink);
            color: #fff;
            transform: translateY(-2px);
        }
        .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            display: inline-block;
        }
        .tag-badge {
            display: inline-flex;
            align-items: center;
            height: 24px;
            padding: 0 10px;
            border-radius: 999px;
            background: rgba(14, 124, 107, 0.1);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.05em;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            height: 28px;
            padding: 0 16px;
            border: 1px solid #D1D5DB;
            border-radius: 999px;
            background: transparent;
            color: var(--color-ink);
            font-size: 13px;
            font-weight: 500;
        }
        .footer-link {
            color: #9CA3AF;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: #ffffff;
        }
        .card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 8px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }
        .card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-md);
        }
        .article-content {
            font-size: 16px;
            line-height: 1.8;
            color: #374151;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 16px;
            color: var(--color-ink);
            letter-spacing: -0.02em;
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--color-ink);
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content img {
            border-radius: 8px;
            margin: 24px 0;
        }
        .article-content a {
            color: var(--color-primary);
            border-bottom: 1px solid rgba(14, 124, 107, 0.3);
        }
        .article-content a:hover {
            border-bottom-color: var(--color-primary);
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: rgba(14, 124, 107, 0.05);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--color-muted);
        }
        .breadcrumb a {
            color: #6B7280;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb span {
            color: #D1D5DB;
            margin: 0 8px;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-line);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 56px;
            cursor: pointer;
            font-weight: 500;
            font-size: 16px;
            color: var(--color-ink);
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-muted);
            border-radius: 2px;
        }
        .faq-icon::before {
            width: 20px;
            height: 1.5px;
            top: 9px;
            left: 0;
        }
        .faq-icon::after {
            width: 1.5px;
            height: 20px;
            top: 0;
            left: 9px;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--color-muted);
            font-size: 14px;
            line-height: 1.7;
            padding: 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }
        .hidden-mobile-menu {
            display: none;
        }
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex !important;
            }
        }
        @media (min-width: 1024px) {
            .mobile-menu-btn {
                display: none !important;
            }
            .mobile-menu {
                display: none !important;
            }
        }
        .mobile-menu {
            background: var(--color-bg);
            border-top: 1px solid var(--color-line);
            padding: 16px 20px 24px;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-ink);
            border-bottom: 1px solid rgba(229, 231, 235, 0.6);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a.active {
            color: var(--color-primary);
        }
        .cms-list-card {
            border-bottom: 1px solid var(--color-line);
            padding: 20px 0;
            transition: padding-left 0.2s ease;
        }
        .cms-list-card:hover {
            padding-left: 8px;
        }
        .cms-list-card .title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-ink);
            line-height: 1.4;
            transition: color 0.2s ease;
        }
        .cms-list-card:hover .title {
            color: var(--color-primary);
        }
        .cms-list-card .summary {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            margin-top: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .section-title {
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .section-heading {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        @media (max-width: 640px) {
            .section-heading {
                font-size: 22px;
            }
        }

/* roulang page: category1 */
:root {
      --color-bg: #FAF9F6;
      --color-surface: #FFFFFF;
      --color-ink: #111827;
      --color-muted: #6B7280;
      --color-line: #E5E7EB;
      --color-primary: #0E7C6B;
      --color-primary-hover: #0B6356;
      --color-accent: #F97316;
      --color-accent-hover: #EA580C;
      --color-block: #FEF3C7;
      --radius-card: 8px;
      --radius-btn: 999px;
      --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
      background: var(--color-bg);
      color: var(--color-ink);
      font-size: 15px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button {
      font-family: inherit;
      border: none;
      background: none;
      cursor: pointer;
    }

    /* Buttons */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 28px;
      background: var(--color-accent);
      color: #fff;
      font-size: 15px;
      font-weight: 500;
      border-radius: var(--radius-btn);
      transition: all .25s ease;
      box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
      white-space: nowrap;
    }
    .btn-primary:hover {
      background: var(--color-accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(249, 115, 22, 0.35);
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }
    .btn-primary:focus-visible {
      outline: 2px solid var(--color-accent);
      outline-offset: 3px;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 28px;
      background: transparent;
      color: var(--color-ink);
      font-size: 15px;
      font-weight: 500;
      border: 1.5px solid var(--color-ink);
      border-radius: var(--radius-btn);
      transition: all .25s ease;
      white-space: nowrap;
    }
    .btn-secondary:hover {
      background: var(--color-primary);
      border-color: var(--color-primary);
      color: #fff;
      transform: translateY(-2px);
    }
    .btn-secondary:active {
      transform: translateY(0);
    }
    .btn-secondary:focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 3px;
    }

    .btn-white-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 28px;
      background: transparent;
      color: #fff;
      font-size: 15px;
      font-weight: 500;
      border: 1.5px solid rgba(255, 255, 255, 0.55);
      border-radius: var(--radius-btn);
      transition: all .25s ease;
      white-space: nowrap;
    }
    .btn-white-outline:hover {
      border-color: #fff;
      background: rgba(255, 255, 255, 0.08);
      transform: translateY(-2px);
    }

    /* Nav */
    .nav-link {
      position: relative;
      display: inline-block;
      padding: 8px 2px;
      transition: color .25s ease;
      line-height: 1.4;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 0;
      height: 2px;
      border-radius: 2px;
      background: var(--color-primary);
      transition: width .3s ease;
    }
    .nav-link:hover {
      color: var(--color-primary);
    }
    .nav-link:hover::after,
    .nav-link.active::after {
      width: 20px;
    }
    .nav-link.active {
      color: var(--color-primary);
    }

    .nav-link-mobile {
      padding: 8px 0;
      display: block;
      border-bottom: 1px solid rgba(229, 231, 235, 0.6);
      transition: color .2s ease;
    }
    .nav-link-mobile:last-child {
      border-bottom: none;
    }

    /* Badges & markers */
    .section-mark {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(14, 124, 107, 0.08);
      color: var(--color-primary);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      border-radius: 999px;
    }

    .badge-tag {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(14, 124, 107, 0.08);
      color: var(--color-primary);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.04em;
      border-radius: 999px;
    }

    /* Cards */
    .guide-card {
      background: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-card);
      transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
      position: relative;
      overflow: hidden;
    }
    .guide-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 3px;
      height: 0;
      background: var(--color-primary);
      transition: height .3s ease;
    }
    .guide-card:hover {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .guide-card:hover::before {
      height: 52px;
    }

    .card-link {
      display: inline-block;
      color: var(--color-primary);
      font-size: 14px;
      font-weight: 500;
      transition: color .2s ease, transform .2s ease;
    }
    .card-link:hover {
      color: var(--color-primary-hover);
      transform: translateX(4px);
    }

    .security-card {
      background: #fff;
      border-radius: var(--radius-card);
      padding: 16px;
      box-shadow: var(--shadow-card);
      transition: box-shadow .25s ease, transform .25s ease;
    }
    .security-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .game-feature-card,
    .game-mini-card {
      background: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      padding: 16px;
      box-shadow: var(--shadow-card);
      transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
    }
    .game-feature-card:hover,
    .game-mini-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--color-primary);
      transform: translateY(-3px);
    }

    .check-dot {
      width: 8px;
      height: 8px;
      flex-shrink: 0;
      border-radius: 50%;
      background: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(14, 124, 107, 0.12);
      display: inline-block;
    }

    /* Steps */
    .step-item {
      position: relative;
      text-align: center;
      padding: 0 12px;
    }
    .step-num {
      width: 56px;
      height: 56px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--color-primary);
      color: #fff;
      font-size: 18px;
      font-weight: 700;
      position: relative;
      z-index: 1;
      box-shadow: 0 4px 14px rgba(14, 124, 107, 0.3);
      transition: transform .3s ease, box-shadow .3s ease;
    }
    .step-item:hover .step-num {
      transform: scale(1.06);
      box-shadow: 0 6px 20px rgba(14, 124, 107, 0.4);
    }

    /* FAQ */
    .faq-item {
      border-bottom: 1px solid var(--color-line);
    }
    .faq-item:first-child {
      border-top: 1px solid var(--color-line);
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
      text-align: left;
      transition: color .2s ease;
      gap: 16px;
    }
    .faq-question:hover {
      color: var(--color-primary);
    }
    .faq-icon {
      font-size: 22px;
      font-weight: 300;
      color: var(--color-muted);
      transition: transform .3s ease;
      line-height: 1;
      flex-shrink: 0;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease;
    }
    .faq-answer p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--color-muted);
      padding-bottom: 16px;
    }

    /* Footer */
    .footer-link {
      transition: color .2s ease;
      color: inherit;
      opacity: 0.85;
    }
    .footer-link:hover {
      color: #fff;
      opacity: 1;
    }

    /* Responsive tweaks */
    @media (max-width: 1024px) {
      .step-line {
        display: none;
      }
    }

    @media (max-width: 768px) {
      body {
        font-size: 14px;
      }
      .step-item {
        padding: 0 4px;
      }
      .step-num {
        width: 46px;
        height: 46px;
        font-size: 16px;
      }
      .guide-card {
        padding: 20px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }
    }

/* roulang page: category2 */
:root{--color-bg:#FAF9F6;--color-surface:#FFFFFF;--color-ink:#111827;--color-muted:#6B7280;--color-line:#E5E7EB;--color-primary:#0E7C6B;--color-primary-hover:#0B6356;--color-accent:#F97316;--color-accent-hover:#EA580C;--color-block:#FEF3C7;--radius-card:8px;--shadow-card:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.06);--shadow-hover:0 8px 24px rgba(0,0,0,.12);--font-sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans CJK SC',sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-ink);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s}
button{font-family:inherit;border:0;background:none;cursor:pointer}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;height:72px;background:rgba(250,249,246,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-line)}
.nav-link{position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;color:var(--color-ink)}
.nav-link:hover{color:var(--color-primary)}
.nav-link.active{color:var(--color-primary)}
.nav-link.active::after{content:'';position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:20px;height:2px;background:var(--color-primary);border-radius:2px}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:46px;padding:0 28px;background:var(--color-accent);color:#fff;font-size:15px;font-weight:500;border-radius:999px;transition:all .2s ease}
.btn-primary:hover{background:var(--color-accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 28px;border:1.5px solid var(--color-ink);color:var(--color-ink);font-size:15px;font-weight:500;border-radius:999px;transition:all .2s;background:transparent}
.btn-outline:hover{background:var(--color-primary);border-color:var(--color-primary);color:#fff}
.badge-lg{display:inline-flex;align-items:center;height:26px;padding:0 14px;border:1px solid #D1D5DB;border-radius:999px;background:transparent;font-size:13px;color:var(--color-ink);font-weight:500}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;background:rgba(14,124,107,.1);color:var(--color-primary);font-size:12px;border-radius:999px;font-weight:500;letter-spacing:.05em}
.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--color-primary);text-transform:uppercase}
.section-label::before{content:'';width:18px;height:2px;background:var(--color-primary);border-radius:2px}
.section-title{font-size:26px;font-weight:700;letter-spacing:-.02em;color:var(--color-ink);line-height:1.3;margin-top:10px}
@media(min-width:768px){.section-title{font-size:32px}}
.section-subtitle{font-size:15px;color:var(--color-muted);margin-top:12px;max-width:560px;line-height:1.7}
.card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);padding:24px;transition:all .3s;box-shadow:var(--shadow-card)}
.card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover)}
.card-media{overflow:hidden;border-radius:8px 8px 0 0}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .card-media img{transform:scale(1.03)}
.category-hero{position:relative;padding:130px 0 64px;overflow:hidden;background:var(--color-bg)}
@media(min-width:768px){.category-hero{padding:170px 0 96px}}
.hero-title{font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1.25;margin-top:18px}
@media(min-width:768px){.hero-title{font-size:48px}}
.hero-desc{font-size:16px;line-height:1.8;color:var(--color-muted);margin-top:18px;max-width:520px}
@media(min-width:768px){.hero-desc{font-size:17px}}
.stat-num{font-size:24px;font-weight:700;color:var(--color-ink)}
.stat-label{font-size:13px;color:var(--color-muted);margin-top:4px}
.stat-divider{width:1px;height:40px;background:var(--color-line)}
.feature-card{position:relative;overflow:hidden;height:100%}
.feature-num{position:absolute;right:16px;top:8px;font-size:56px;font-weight:800;color:rgba(14,124,107,.08);line-height:1}
.feature-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:14px;line-height:1.7;color:var(--color-muted)}
.cat-card{position:relative;border-radius:8px;overflow:hidden;border:1px solid var(--color-line);transition:all .3s;background:var(--color-surface)}
.cat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.cat-card img{width:100%;height:200px;object-fit:cover}
.cat-card-body{padding:18px 20px 20px}
.news-card{display:flex;gap:20px;background:var(--color-surface);border:1px solid var(--color-line);border-radius:8px;padding:16px;transition:all .3s}
.news-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover)}
.news-thumb{width:120px;height:90px;flex-shrink:0;border-radius:6px;object-fit:cover}
.news-content h3{font-size:16px;font-weight:600;line-height:1.4;transition:color .2s}
.news-card:hover .news-content h3{color:var(--color-primary)}
.news-excerpt{font-size:14px;color:var(--color-muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{font-size:13px;color:#9CA3AF;margin-top:8px;display:flex;gap:12px}
.step-item{position:relative}
.step-num{font-size:48px;font-weight:800;color:rgba(14,124,107,.15);line-height:1}
.step-dot{width:10px;height:10px;background:var(--color-primary);border-radius:50%;margin-top:18px}
.faq-item{border-bottom:1px solid var(--color-line)}
.faq-question{display:flex;justify-content:space-between;align-items:center;width:100%;padding:20px 0;font-size:16px;font-weight:500;color:var(--color-ink);text-align:left;transition:color .2s}
.faq-question:hover{color:var(--color-primary)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;transition:transform .3s;color:var(--color-ink)}
.faq-icon::before{content:'';position:absolute;top:9px;left:0;width:20px;height:2px;background:currentColor;border-radius:1px}
.faq-icon::after{content:'';position:absolute;top:0;left:9px;width:2px;height:20px;background:currentColor;border-radius:1px}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--color-primary)}
.faq-answer{display:none;padding:0 0 20px;font-size:14px;line-height:1.8;color:var(--color-muted)}
.faq-item.open .faq-answer{display:block}
.cta-section{background:#1C1917;padding:80px 0}
.footer-link{color:#D1D5DB;font-size:14px;transition:color .2s}
.footer-link:hover{color:#fff}
.menu-icon{position:relative;width:24px;height:16px;display:block}
.menu-icon span{position:absolute;left:0;width:24px;height:2px;background:var(--color-ink);border-radius:2px;transition:all .3s}
.menu-icon span:nth-child(1){top:0}
.menu-icon span:nth-child(2){top:7px}
.menu-icon span:nth-child(3){top:14px}
.menu-icon.open span:nth-child(1){top:7px;transform:rotate(45deg)}
.menu-icon.open span:nth-child(2){opacity:0}
.menu-icon.open span:nth-child(3){top:7px;transform:rotate(-45deg)}
@media(max-width:520px){
.news-card{flex-direction:column;gap:12px}
.news-thumb{width:100%;height:160px}
.hero-stats .stat-num{font-size:20px}
}