/* roulang page: index */
:root {
    --brand: #4F46E5;
    --brand-dark: #4338CA;
    --brand-light: #EEF2FF;
    --accent: #F59E0B;
    --accent-light: #FEF3C7;
    --bg: #F8FAFC;
    --surface: #FFFFFF;
    --text: #0F172A;
    --text-weak: #64748B;
    --text-invert: #FFFFFF;
    --border: #E2E8F0;
    --radius: 18px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow: 0 8px 28px rgba(15, 23, 42, 0.07);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
    --nav-h: 72px;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

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

  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.25s ease, background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  }

  button {
    border: none;
    background: none;
    cursor: pointer;
  }

  .container-custom {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    height: var(--nav-h);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-h);
  }

  .logo {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--brand), #7C3AED);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
  }

  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .desktop-nav a {
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
    transition: all 0.25s ease;
  }

  .desktop-nav a:hover {
    color: var(--brand);
    background: var(--brand-light);
  }

  .desktop-nav a.active {
    color: var(--brand);
    font-weight: 600;
    background: var(--brand-light);
  }

  .menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid var(--border);
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text);
    background: #fff;
  }

  .mobile-menu {
    display: none;
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 12px 20px 20px;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
  }

  .mobile-menu.open {
    display: block;
  }

  .mobile-menu a {
    display: block;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
  }

  .mobile-menu a:hover,
  .mobile-menu a.active {
    background: var(--brand-light);
    color: var(--brand);
  }

  .hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    color: #fff;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(79, 70, 229, 0.78) 100%), url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
    overflow: hidden;
  }

  .hero::after {
    content: '';
    position: absolute;
    right: -10%;
    bottom: -30%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.14) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 18px 0 14px;
  }

  .hero-sub {
    font-size: 1.12rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 30px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.2;
    transition: all 0.25s ease;
    white-space: nowrap;
  }

  .btn:focus-visible {
    outline: 3px solid rgba(79, 70, 229, 0.35);
    outline-offset: 2px;
  }

  .btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
  }

  .btn-primary:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(79, 70, 229, 0.42);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.36);
    backdrop-filter: blur(6px);
  }

  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.56);
    transform: translateY(-2px);
  }

  .btn-light {
    background: #fff;
    color: var(--brand-dark);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  }

  .btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
  }

  .btn-outline-light {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
  }

  .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-2px);
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .badge-light {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
  }

  .badge-brand {
    background: var(--brand-light);
    color: var(--brand-dark);
  }

  .badge-accent {
    background: var(--accent-light);
    color: #B45309;
  }

  .badge-cat {
    background: var(--brand-light);
    color: var(--brand-dark);
    font-size: 0.78rem;
    padding: 3px 12px;
  }

  .section {
    padding: 88px 0;
  }

  .section-white {
    background: #fff;
  }

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

  .section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
  }

  .section-head h2 {
    font-size: clamp(1.8rem, 3.2vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin-bottom: 12px;
  }

  .section-head p {
    font-size: 1.02rem;
    color: var(--text-weak);
  }

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

  .card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.22);
  }

  .stat-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
  }

  .stat-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--brand);
    line-height: 1.15;
    margin-bottom: 6px;
  }

  .stat-label {
    font-size: 0.9rem;
    color: var(--text-weak);
  }

  .cat-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
  }

  .cat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.24);
  }

  .cat-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
  }

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

  .cat-card-body h3 {
    font-size: 1.18rem;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .cat-card-body p {
    font-size: 0.92rem;
    color: var(--text-weak);
    flex: 1;
    margin-bottom: 16px;
  }

  .link-more {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .link-more:hover {
    color: var(--brand-dark);
  }

  .feature-section {
    background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
  }

  .feature-img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
  }

  .feature-img img {
    width: 100%;
    height: 380px;
    object-fit: cover;
  }

  .feature-content h2 {
    font-size: clamp(1.7rem, 3vw, 2.2rem);
    font-weight: 800;
    line-height: 1.3;
    margin: 12px 0 14px;
    letter-spacing: -0.02em;
  }

  .feature-content p {
    color: var(--text-weak);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
  }

  .feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 26px;
    display: grid;
    gap: 12px;
  }

  .feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
  }

  .feature-list i {
    color: var(--brand);
    font-size: 1.1rem;
    margin-top: 2px;
  }

  .news-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 26px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
  }

  .news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.22);
  }

  .news-title {
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.45;
    margin: 12px 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-desc {
    font-size: 0.9rem;
    color: var(--text-weak);
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
  }

  .news-time {
    font-size: 0.82rem;
    color: var(--text-weak);
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }

  .news-more {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brand);
  }

  .empty-tip {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-weak);
    font-size: 1rem;
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
  }

  .step-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 34px 28px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
  }

  .step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
  }

  .step-num {
    width: 52px;
    height: 52px;
    margin: 0 auto 18px;
    border-radius: 16px;
    background: var(--brand-light);
    color: var(--brand);
    font-size: 1.3rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .step-card h3 {
    font-size: 1.08rem;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .step-card p {
    font-size: 0.9rem;
    color: var(--text-weak);
    line-height: 1.7;
  }

  .faq-section {
    background: var(--text);
    color: #fff;
  }

  .faq-section .section-head h2 {
    color: #fff;
  }

  .faq-section .section-head p {
    color: rgba(255, 255, 255, 0.66);
  }

  .faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: grid;
    gap: 16px;
  }

  .faq-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 16px;
    padding: 22px 26px;
    transition: background 0.25s ease, border-color 0.25s ease;
  }

  .faq-item:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.22);
  }

  .faq-item h3 {
    font-size: 1.02rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
  }

  .faq-item p {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.75;
  }

  .cta-section {
    position: relative;
    background: linear-gradient(135deg, var(--brand) 0%, #7C3AED 100%);
    color: #fff;
    overflow: hidden;
  }

  .cta-section::before {
    content: '';
    position: absolute;
    left: -10%;
    top: -40%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.16) 0%, transparent 70%);
    border-radius: 50%;
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 70px 20px;
    max-width: 720px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-size: clamp(1.8rem, 3.4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 14px;
  }

  .cta-inner p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 30px;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .site-footer {
    background: #0F172A;
    color: #94A3B8;
    padding: 70px 0 0;
    border-top: 1px solid rgba(226, 232, 240, 0.08);
  }

  .footer-brand .logo {
    color: #fff;
    margin-bottom: 14px;
  }

  .footer-brand p {
    font-size: 0.92rem;
    line-height: 1.8;
    max-width: 300px;
  }

  .footer-col h4 {
    color: #fff;
    font-size: 0.98rem;
    font-weight: 700;
    margin-bottom: 18px;
  }

  .footer-col a {
    display: block;
    padding: 6px 0;
    font-size: 0.9rem;
    color: #94A3B8;
    transition: color 0.2s ease, padding 0.2s ease;
  }

  .footer-col a:hover {
    color: #fff;
    padding-left: 4px;
  }

  .footer-bottom {
    margin-top: 52px;
    padding: 22px 0;
    border-top: 1px solid rgba(226, 232, 240, 0.1);
    text-align: center;
    font-size: 0.85rem;
    color: #64748B;
  }

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

    .menu-toggle {
      display: inline-flex;
    }

    .section {
      padding: 60px 0;
    }

    .hero {
      min-height: 520px;
    }

    .hero-content {
      padding-top: 40px;
      padding-bottom: 40px;
    }

    .hero h1 {
      font-size: 2rem;
    }

    .hero-sub {
      font-size: 1rem;
    }

    .feature-img img {
      height: 260px;
    }

    .cta-inner {
      padding: 50px 20px;
    }
  }

  @media (max-width: 520px) {
    .logo {
      font-size: 1.2rem;
    }

    .logo-icon {
      width: 32px;
      height: 32px;
      font-size: 0.95rem;
    }

    .hero h1 {
      font-size: 1.7rem;
    }

    .btn {
      width: 100%;
    }

    .hero-actions {
      flex-direction: column;
      gap: 10px;
    }

    .cta-actions {
      flex-direction: column;
      gap: 10px;
    }

    .stat-num {
      font-size: 1.6rem;
    }

    .section-head {
      margin-bottom: 32px;
    }
  }

/* roulang page: article */
:root {
  --brand-primary: #4f46e5;
  --brand-primary-dark: #4338ca;
  --brand-secondary: #06b6d4;
  --bg-light: #f0f4ff;
  --bg-white: #ffffff;
  --text-dark: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  --radius-lg: 1rem;
  --radius-md: 0.75rem;
  --radius-sm: 0.5rem;
  --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 12px 32px rgba(79, 70, 229, 0.12);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}
input, textarea {
  font-family: inherit;
  outline: none;
}
.container-custom {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
@media (max-width: 768px) {
  .container-custom {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  box-shadow: 0 1px 12px rgba(15, 23, 42, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: #fff;
  font-size: 1.35rem;
  font-weight: 900;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.desktop-nav a {
  padding: 0.55rem 1.05rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-body);
  transition: all 0.2s ease;
}
.desktop-nav a:hover {
  color: var(--brand-primary);
  background: var(--bg-light);
}
.desktop-nav a.active {
  color: #fff;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-light);
  color: var(--text-dark);
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.menu-toggle:hover {
  background: #e2e8f0;
}
.mobile-menu {
  display: none;
  padding: 0.5rem 1rem 1rem;
  border-top: 1px solid var(--border-light);
  background: #fff;
}
.mobile-menu a {
  display: block;
  padding: 0.8rem 0.6rem;
  font-weight: 500;
  color: var(--text-body);
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}
.mobile-menu a:hover {
  background: var(--bg-light);
  color: var(--brand-primary);
}
.mobile-menu a.active {
  color: var(--brand-primary);
  background: var(--bg-light);
}
.mobile-menu.open {
  display: block;
}
@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
}
.article-banner {
  position: relative;
  padding: 4rem 0 3.5rem;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 45%, #4f46e5 100%);
  overflow: hidden;
}
.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  z-index: 1;
}
.article-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(30, 27, 75, 0.65) 0%, rgba(79, 70, 229, 0.35) 100%);
  z-index: 2;
}
.article-banner .container-custom {
  position: relative;
  z-index: 3;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1.2rem;
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb i {
  font-size: 0.65rem;
  opacity: 0.7;
}
.article-banner h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 1rem;
  max-width: 800px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}
.banner-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.article-main {
  padding: 0;
  margin-top: -2rem;
  position: relative;
  z-index: 5;
  padding-bottom: 4rem;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 2rem;
  padding-top: 0;
}
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
}
.article-body {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 2.5rem;
  border: 1px solid rgba(226, 232, 240, 0.6);
}
@media (max-width: 640px) {
  .article-body {
    padding: 1.5rem;
  }
}
.article-content {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--text-body);
}
.article-content h2,
.article-content h3,
.article-content h4 {
  color: var(--text-dark);
  font-weight: 700;
  margin: 1.8rem 0 0.8rem;
  letter-spacing: -0.01em;
}
.article-content h2 {
  font-size: 1.45rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--bg-light);
}
.article-content h3 {
  font-size: 1.2rem;
}
.article-content p {
  margin-bottom: 1.2rem;
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 1.6rem 0;
  box-shadow: var(--shadow-card);
}
.article-content ul,
.article-content ol {
  margin: 1rem 0 1.4rem 1.4rem;
}
.article-content li {
  margin-bottom: 0.5rem;
  padding-left: 0.2rem;
}
.article-content ul li {
  list-style: disc;
}
.article-content ol li {
  list-style: decimal;
}
.article-content blockquote {
  border-left: 4px solid var(--brand-primary);
  background: var(--bg-light);
  padding: 1rem 1.4rem;
  border-radius: 0 0.75rem 0.75rem 0;
  margin: 1.5rem 0;
  color: var(--text-body);
  font-style: normal;
}
.article-content a {
  color: var(--brand-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-content a:hover {
  color: var(--brand-primary-dark);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border-light);
  padding: 0.7rem 1rem;
  text-align: left;
}
.article-content th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text-dark);
}
.content-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-muted);
}
.content-empty i {
  font-size: 2.5rem;
  color: #cbd5e1;
  margin-bottom: 1rem;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}
.article-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: var(--bg-light);
  color: var(--brand-primary);
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.2s ease;
}
.article-tags .tag:hover {
  background: var(--brand-primary);
  color: #fff;
}
.article-share {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}
.article-share span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-right: 0.3rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg-light);
  color: var(--text-body);
  font-size: 1rem;
  transition: all 0.2s ease;
}
.share-btn:hover {
  transform: translateY(-2px);
  background: var(--brand-primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.2);
}
.article-back {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
  transition: all 0.25s ease;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.35);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  border: 2px solid var(--border-light);
  color: var(--text-body);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.25s ease;
  background: #fff;
}
.btn-outline:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
}
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.sidebar-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226, 232, 240, 0.6);
  padding: 1.5rem;
}
.sidebar-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--bg-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.sidebar-card h3 i {
  color: var(--brand-primary);
}
.sidebar-card h3::after {
  content: '';
  flex: 1;
}
.sidebar-card h3 .badge-count {
  background: var(--brand-primary);
  color: #fff;
  font-size: 0.7rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-weight: 700;
}
.info-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.info-list .info-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
}
.info-list .info-row i {
  width: 20px;
  color: var(--brand-primary);
  font-size: 0.85rem;
  text-align: center;
}
.info-list .info-row strong {
  color: var(--text-dark);
  font-weight: 600;
  min-width: 56px;
}
.info-list .info-row span {
  color: var(--text-muted);
  word-break: break-all;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.65rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  transition: all 0.2s ease;
  background: transparent;
}
.sidebar-nav a i {
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: color 0.2s ease;
  width: 18px;
  text-align: center;
}
.sidebar-nav a:hover {
  background: var(--bg-light);
  color: var(--brand-primary);
  padding-left: 1.1rem;
}
.sidebar-nav a:hover i {
  color: var(--brand-primary);
}
.sidebar-nav a.active {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(6, 182, 212, 0.08));
  color: var(--brand-primary);
  font-weight: 600;
  border-left: 3px solid var(--brand-primary);
}
.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.sidebar-list a {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.55rem 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-body);
  border-bottom: 1px dashed var(--border-light);
  transition: all 0.2s ease;
}
.sidebar-list a:last-child {
  border-bottom: none;
}
.sidebar-list a:hover {
  color: var(--brand-primary);
  padding-left: 0.35rem;
}
.sidebar-list a .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-secondary);
  margin-top: 0.55rem;
  flex-shrink: 0;
}
.sidebar-list a .post-title {
  flex: 1;
}
.sidebar-list a .post-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.sidebar-banner {
  background: linear-gradient(135deg, #1e1b4b, #4f46e5);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.5rem;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.sidebar-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}
.sidebar-banner h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  border-bottom: none;
  padding-bottom: 0;
}
.sidebar-banner p {
  font-size: 0.85rem;
  opacity: 0.85;
  margin-bottom: 1rem;
  line-height: 1.6;
}
.not-found-container {
  max-width: 700px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 4rem 2rem;
  text-align: center;
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.not-found-container .nf-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-light);
  color: var(--brand-primary);
  font-size: 2rem;
}
.not-found-container h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
}
.not-found-container p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.related-section {
  padding: 4rem 0;
  background: #fff;
  border-top: 1px solid var(--border-light);
}
.related-section .section-head {
  text-align: center;
  margin-bottom: 2.5rem;
}
.related-section .section-head h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.related-section .section-head p {
  color: var(--text-muted);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}
.related-card {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid rgba(226, 232, 240, 0.7);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
  background: #fff;
}
.related-card .rc-cat {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.1);
  color: var(--brand-primary);
  font-size: 0.72rem;
  font-weight: 600;
}
.related-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
  transition: color 0.2s ease;
}
.related-card:hover h3 {
  color: var(--brand-primary);
}
.related-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}
.related-card .rc-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.related-card .rc-footer .rc-date {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.cta-section {
  padding: 4.5rem 0;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4f46e5 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.cta-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.cta-inner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  background: #fff;
  color: var(--brand-primary);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: all 0.25s ease;
}
.btn-cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}
.btn-cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.25s ease;
}
.btn-cta-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-3px);
}
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 4rem 0 0;
}
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #94a3b8;
}
.footer-brand .logo {
  color: #fff;
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.1rem;
  letter-spacing: -0.01em;
}
.footer-col a {
  display: block;
  color: #94a3b8;
  font-size: 0.9rem;
  margin-bottom: 0.7rem;
  transition: all 0.2s ease;
}
.footer-col a:hover {
  color: #fff;
  padding-left: 0.25rem;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 3rem;
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.82rem;
  color: #64748b;
}
.footer-bottom p {
  margin: 0;
}
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(79, 70, 229, 0.5);
}
@media (max-width: 640px) {
  .back-to-top {
    right: 1rem;
    bottom: 1rem;
    width: 40px;
    height: 40px;
  }
  .related-card {
    padding: 1.2rem;
  }
  .article-body {
    padding: 1.2rem;
  }
  .sidebar-card {
    padding: 1.2rem;
  }
  .cta-buttons .btn-cta-primary,
  .cta-buttons .btn-cta-ghost {
    width: 100%;
    justify-content: center;
  }
}
::selection {
  background: rgba(79, 70, 229, 0.15);
  color: var(--brand-primary);
}
:focus-visible {
  outline: 3px solid rgba(79, 70, 229, 0.4);
  outline-offset: 2px;
}

/* roulang page: category1 */
:root {
            --primary: #0d4f8b;
            --primary-dark: #083b68;
            --primary-light: #eaf3fb;
            --accent: #ef8f2f;
            --accent-dark: #e17a10;
            --accent-light: #fff3e6;
            --ink: #1e2f40;
            --muted: #5c6f80;
            --bg: #f4f8fc;
            --white: #ffffff;
            --border: #e3ebf2;
            --radius-xl: 22px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(8, 32, 55, .06);
            --shadow-md: 0 12px 30px rgba(8, 32, 55, .09);
            --shadow-lg: 0 24px 60px rgba(8, 32, 55, .14);
            --transition: .28s cubic-bezier(.4, 0, .2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--ink);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
            color: #0b2440;
        }

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

        p {
            margin: 0;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(239, 143, 47, .5);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container-custom {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.18rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: .3px;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            box-shadow: 0 6px 14px rgba(13, 79, 139, .28);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .desktop-nav a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: .95rem;
            font-weight: 600;
            color: var(--muted);
            transition: var(--transition);
            position: relative;
        }

        .desktop-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .desktop-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 18px rgba(13, 79, 139, .25);
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: #fff;
            color: var(--primary);
            font-size: 1.1rem;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .mobile-menu {
            display: none;
            padding: 10px 24px 20px;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .mobile-menu a {
            display: block;
            padding: 12px 14px;
            border-radius: 10px;
            font-weight: 600;
            color: var(--muted);
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
        }

        .hero-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0 70px;
            color: #fff;
        }

        .hero-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(5, 28, 50, .9), rgba(11, 61, 100, .74) 60%, rgba(13, 79, 139, .38));
        }

        .hero-banner .container-custom {
            position: relative;
            z-index: 1;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .16);
            border: 1px solid rgba(255, 255, 255, .28);
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: .3px;
            backdrop-filter: blur(6px);
            color: #fff;
        }

        .hero-banner h1 {
            font-size: clamp(2rem, 5vw, 3.25rem);
            color: #fff;
            margin-top: 20px;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .hero-desc {
            max-width: 680px;
            font-size: 1.12rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 28px;
        }

        .btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-row.justify-center {
            justify-content: center;
        }

        .btn-primary,
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 700;
            font-size: .98rem;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 10px 24px rgba(239, 143, 47, .35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(239, 143, 47, .45);
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 18px;
            color: var(--primary);
            font-weight: 700;
            font-size: .95rem;
            transition: var(--transition);
        }

        .btn-card-link:hover {
            gap: 12px;
            color: var(--accent-dark);
        }

        .countdown-wrap {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            margin-top: 24px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 16px;
            padding: 16px 22px;
            backdrop-filter: blur(6px);
        }

        .countdown-label {
            font-size: .82rem;
            color: rgba(255, 255, 255, .85);
        }

        .countdown-box {
            display: flex;
            gap: 10px;
        }

        .cd-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            background: rgba(255, 255, 255, .12);
            border-radius: 10px;
            padding: 6px 12px;
            font-size: .72rem;
            color: rgba(255, 255, 255, .8);
            min-width: 56px;
        }

        .cd-item b {
            font-size: 1.2rem;
            color: #fff;
            line-height: 1.3;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 38px;
        }

        .stat-item {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 16px;
            padding: 18px 16px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-3px);
        }

        .stat-item b {
            display: block;
            font-size: 1.65rem;
            color: #fff;
            line-height: 1.3;
        }

        .stat-item span {
            font-size: .85rem;
            color: rgba(255, 255, 255, .78);
        }

        .section {
            padding: 80px 0;
        }

        .section-light {
            background: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 999px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .4px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        .cover-frame {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-height: 300px;
        }

        .cover-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .cover-frame:hover img {
            transform: scale(1.03);
        }

        .feature-list {
            margin-top: 18px;
        }

        .feature-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 12px;
            color: #33475b;
            font-size: .97rem;
        }

        .feature-list li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: .7rem;
        }

        .step-card {
            position: relative;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 1.05rem;
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--muted);
            font-size: .92rem;
            line-height: 1.75;
        }

        .resource-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .resource-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .resource-card .thumb {
            position: relative;
            height: 160px;
            overflow: hidden;
        }

        .resource-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .resource-card:hover .thumb img {
            transform: scale(1.06);
        }

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

        .resource-card .card-body h3 {
            font-size: 1.05rem;
            margin: 10px 0 8px;
        }

        .resource-card .card-body p {
            color: var(--muted);
            font-size: .9rem;
            line-height: 1.75;
            flex: 1;
        }

        .card-tag {
            align-self: flex-start;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .75rem;
            font-weight: 600;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: .9rem;
            margin-top: 14px;
            transition: var(--transition);
        }

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

        .tips-section {
            position: relative;
            background-size: cover;
            background-position: center;
        }

        .tips-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(8, 29, 50, .92);
        }

        .tips-section .container-custom {
            position: relative;
            z-index: 1;
        }

        .tips-section .section-tag {
            background: rgba(255, 255, 255, .12);
            color: #ffd9ad;
        }

        .tips-section .section-head h2 {
            color: #fff;
        }

        .tips-section .section-head p {
            color: rgba(255, 255, 255, .7);
        }

        .tip-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .tip-card:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-4px);
        }

        .tip-card i {
            width: 46px;
            height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 18px;
        }

        .tip-card h3 {
            color: #fff;
            font-size: 1.02rem;
            margin-bottom: 10px;
        }

        .tip-card p {
            color: rgba(255, 255, 255, .74);
            font-size: .9rem;
            line-height: 1.8;
        }

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item summary {
            list-style: none;
            padding: 20px 24px;
            font-weight: 700;
            font-size: .98rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            color: var(--ink);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: .85rem;
            color: var(--accent);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary {
            color: var(--primary);
            background: #f2f8fd;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--muted);
            font-size: .93rem;
            line-height: 1.85;
        }

        .faq-item .faq-answer p {
            margin-bottom: 0;
        }

        .cta-section {
            padding: 70px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-xl);
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }

        .cta-box h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 12px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .8);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }

        .site-footer {
            background: #0a1b2d;
            color: #c8d6e2;
            padding: 64px 0 0;
        }

        .site-footer .logo {
            color: #fff;
        }

        .footer-brand p {
            color: #8fa5b8;
            line-height: 1.8;
            margin-top: 14px;
            font-size: .92rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .95rem;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: #8fa5b8;
            font-size: .9rem;
            margin-bottom: 10px;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-bottom {
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            text-align: center;
            color: #6f8496;
            font-size: .85rem;
        }

        .text-muted {
            color: var(--muted) !important;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

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

            .menu-toggle {
                display: inline-flex;
            }

            .mobile-menu {
                display: none;
            }

            .mobile-menu.open {
                display: block;
            }

            .section {
                padding: 60px 0;
            }

            .hero-banner {
                padding: 60px 0 50px;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .header-inner {
                height: 66px;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .hero-banner h1 {
                font-size: 1.65rem;
            }

            .hero-desc {
                font-size: .98rem;
            }

            .btn-primary,
            .btn-ghost {
                padding: 10px 18px;
                font-size: .9rem;
            }

            .logo {
                font-size: 1rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }

            .countdown-box {
                flex-wrap: wrap;
                justify-content: center;
            }

            .cta-box {
                padding: 36px 18px;
            }

            .cta-box h2 {
                font-size: 1.35rem;
            }

            .resource-card .thumb {
                height: 130px;
            }

            .section-head h2 {
                font-size: 1.45rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2547eb;
            --primary-dark: #1e2b8a;
            --primary-light: #bfd3fe;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --dark: #0f172a;
            --body-bg: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --radius: 16px;
            --radius-sm: 8px;
            --container: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--body-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container-custom {
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 10px rgba(15, 23, 42, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1rem;
            font-weight: 900;
            box-shadow: 0 4px 10px rgba(37, 71, 235, 0.25);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .desktop-nav a {
            padding: 10px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .desktop-nav a:hover {
            color: var(--primary);
            background: #eef2ff;
        }

        .desktop-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 14px rgba(37, 71, 235, 0.25);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: #eef2ff;
            color: var(--primary);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 20px;
            gap: 6px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-weight: 600;
            color: var(--text-muted);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: #eef2ff;
            color: var(--primary);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.72), rgba(30, 43, 138, 0.82)),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            padding: 120px 0 110px;
            text-align: center;
            color: #fff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.84rem;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 0.4px;
        }

        .page-hero h1 {
            font-size: clamp(2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

        .page-hero h1 .highlight {
            background: linear-gradient(90deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-sub {
            max-width: 640px;
            margin: 0 auto 36px;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            color: #1e1b0d;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }

        /* ===== Sections ===== */
        section {
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 50px;
        }

        .section-subtitle {
            display: inline-block;
            background: #eef2ff;
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.98rem;
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: 60px 0;
            border-bottom: 1px solid var(--border);
            background: #fff;
        }

        .stat-card {
            background: #f8fafc;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }

        .stat-number span {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== Category Cards ===== */
        .categories-section {
            background: var(--body-bg);
        }

        .category-card {
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 26px;
            transition: var(--transition);
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent), var(--primary));
            opacity: 0;
            transition: var(--transition);
        }

        .category-card:hover::before {
            opacity: 1;
        }

        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
            border-color: var(--primary-light);
        }

        .category-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #eef2ff, #e0e7ff);
            color: var(--primary);
            font-size: 1.25rem;
            margin-bottom: 18px;
            transition: var(--transition);
        }

        .category-card:hover .category-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            transform: scale(1.05);
        }

        .category-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
        }

        .text-link i {
            transition: transform 0.2s ease;
        }

        .text-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Activities ===== */
        .activities-section {
            background: linear-gradient(180deg, #fff, #f0f4ff);
        }

        .activity-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }

        .activity-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }

        .activity-image {
            position: relative;
            overflow: hidden;
        }

        .activity-image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .activity-card:hover .activity-image img {
            transform: scale(1.04);
        }

        .activity-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: linear-gradient(135deg, #f59e0b, #ef4444);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
            animation: pulseTag 1.8s ease infinite;
        }

        @keyframes pulseTag {
            0%,
            100% {
                box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
            }
            50% {
                box-shadow: 0 4px 20px rgba(239, 68, 68, 0.55);
            }
        }

        .activity-body {
            padding: 24px 26px 26px;
        }

        .activity-body h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .activity-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .activity-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .activity-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .activity-meta i {
            color: var(--accent);
        }

        /* ===== Process ===== */
        .process-section {
            background: linear-gradient(135deg, #0f172a, #1e2b8a);
            color: #fff;
        }

        .process-section .section-head h2 {
            color: #fff;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.75);
        }

        .process-section .section-subtitle {
            background: rgba(255, 255, 255, 0.12);
            color: #fbbf24;
        }

        .step-item {
            position: relative;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 40px 25px 30px;
            text-align: center;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            transition: var(--transition);
            height: 100%;
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
            border-color: rgba(255, 255, 255, 0.25);
        }

        .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            color: #1e1b0d;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
        }

        /* ===== Rules & News ===== */
        .rules-news-section {
            background: #fff;
        }

        .rules-panel {
            background: #f8fafc;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 30px;
            height: 100%;
        }

        .rules-panel h2,
        .news-panel h2 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 24px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--border);
            position: relative;
        }

        .rules-panel h2::after,
        .news-panel h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 48px;
            height: 2px;
            background: var(--accent);
        }

        .rule-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .rule-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .rule-list li i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 3px;
        }

        .rule-list li div {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .rule-list li strong {
            font-size: 0.95rem;
            font-weight: 700;
        }

        .rule-list li span {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .news-panel {
            height: 100%;
        }

        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list li {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-list li:hover {
            padding-left: 6px;
        }

        .news-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            margin-top: 7px;
            flex-shrink: 0;
        }

        .news-dot.hot {
            background: #ef4444;
        }

        .news-dot.new {
            background: #22c55e;
        }

        .news-dot.info {
            background: var(--accent);
        }

        .news-dot.coming {
            background: #06b6d4;
        }

        .news-content h3 {
            font-size: 0.98rem;
            font-weight: 700;
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 6px;
        }

        .news-time {
            font-size: 0.78rem;
            color: #94a3b8;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--body-bg);
        }

        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 26px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.open {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text-main);
            gap: 16px;
        }

        .faq-question i {
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, margin 0.3s ease;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.92rem;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px dashed var(--border);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: #fff;
            padding: 60px 0 90px;
        }

        .cta-box {
            background: linear-gradient(135deg, #1a2a8a 0%, #2547eb 100%);
            border-radius: 24px;
            color: #fff;
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            top: -80px;
            right: -80px;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            bottom: -40px;
            left: -40px;
        }

        .cta-box h2 {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            font-size: 0.98rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        .btn-light-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 999px;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }

        .btn-light-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        .cta-box .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.5);
        }

        .cta-box .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 70px 0 30px;
            border-top: 3px solid var(--primary);
        }

        .site-footer .logo {
            color: #e2e8f0;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #e2e8f0;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            padding: 5px 0;
            color: #94a3b8;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #fbbf24;
            padding-left: 4px;
        }

        .footer-col p {
            font-size: 0.88rem;
            line-height: 1.8;
        }

        .footer-bottom {
            margin-top: 50px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(37, 71, 235, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .page-hero {
                padding: 90px 0 80px;
            }
            section {
                padding: 64px 0;
            }
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 12px 26px;
                font-size: 0.9rem;
            }
            section {
                padding: 50px 0;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .cta-box {
                padding: 44px 24px;
                border-radius: 18px;
            }
            .site-footer {
                padding-top: 50px;
            }
            .activity-image img {
                height: 170px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-hero {
                padding: 70px 0 60px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .stat-card {
                padding: 22px 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .category-card {
                padding: 24px 20px;
            }
            .activity-body {
                padding: 20px;
            }
            .rules-panel {
                padding: 26px 20px;
            }
            .faq-item {
                padding: 18px 18px;
            }
            .cta-box {
                padding: 36px 20px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-light-solid,
            .cta-box .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category3 */
/* ==========================================
           完整视觉系统 - hth官网首页网址 常见问题解答页
           ========================================== */
        :root {
            --primary: #4f46e5;
            --primary-light: #818cf8;
            --primary-dark: #3730a3;
            --accent: #f59e0b;
            --accent-light: #fcd34d;
            --dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border: #e2e8f0;
            --radius: 1rem;
            --radius-lg: 1.5rem;
            --radius-xl: 2rem;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 2rem;
            padding-right: 2rem;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
        }

        .section-padding {
            padding: 6rem 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 4rem 0;
            }
        }

        /* ---------- 徽章 / 标题 ---------- */
        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 1rem;
            background: rgba(79, 70, 229, 0.08);
            border: 1px solid rgba(79, 70, 229, 0.15);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--dark);
            letter-spacing: -0.02em;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-top: 0.75rem;
        }

        /* ---------- Header 导航 ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.01em;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 2.5rem;
        }

        .desktop-nav a {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            padding: 6px 2px;
            transition: color 0.3s ease;
        }

        .desktop-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

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

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

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

        .desktop-nav a.active::after {
            width: 100%;
        }

        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--dark);
            padding: 8px;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 1rem 2rem 1.25rem;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 0.8rem 0;
            font-size: 1rem;
            color: var(--text-light);
            border-bottom: 1px solid #f1f5f9;
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 900px) {
            .desktop-nav {
                display: none;
            }

            .menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        /* ---------- 页面 Hero ---------- */
        .page-hero {
            position: relative;
            padding: 6.5rem 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            isolation: isolate;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(79, 70, 229, 0.82) 60%, rgba(99, 102, 241, 0.7) 100%);
            z-index: -1;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: -10%;
            top: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(251, 191, 36, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .hero-content {
            max-width: 780px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 1.25rem 0 1rem;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
        }

        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 2rem;
            max-width: 640px;
        }

        .hero-search {
            display: flex;
            align-items: center;
            background: #fff;
            border-radius: 999px;
            padding: 6px 6px 6px 20px;
            max-width: 540px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
        }

        .hero-search i {
            color: var(--text-light);
            font-size: 1rem;
            margin-right: 10px;
        }

        .hero-search input {
            flex: 1;
            font-size: 0.95rem;
            color: var(--text);
            padding: 8px 0;
            background: transparent;
        }

        .hero-search button {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 999px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .hero-search button:hover {
            transform: scale(1.03);
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
        }

        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-item .num {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
        }

        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ---------- 分类卡片 ---------- */
        .topic-card {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            padding: 2rem 1.5rem;
            min-height: 260px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            color: #fff;
            isolation: isolate;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .topic-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/coverpic/cover-3.png') center/cover no-repeat;
            z-index: -2;
        }

        .topic-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.25) 0%, rgba(15, 23, 42, 0.75) 100%);
            z-index: -1;
        }

        .topic-card:nth-child(2)::before {
            background-image: url('/assets/images/coverpic/cover-5.png');
        }

        .topic-card:nth-child(3)::before {
            background-image: url('/assets/images/coverpic/cover-7.png');
        }

        .topic-card:nth-child(4)::before {
            background-image: url('/assets/images/coverpic/cover-9.png');
        }

        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .topic-card .card-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 14px;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            backdrop-filter: blur(8px);
        }

        .topic-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }

        .topic-card p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
        }

        .topic-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-light);
            margin-top: 1rem;
        }

        .topic-card .card-link i {
            font-size: 0.75rem;
            transition: transform 0.2s ease;
        }

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

        /* ---------- FAQ 手风琴 ---------- */
        .faq-panel {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-panel.active {
            box-shadow: var(--shadow);
            border-color: rgba(79, 70, 229, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
            padding: 1.25rem 1.5rem;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            background: transparent;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: rgba(79, 70, 229, 0.04);
        }

        .faq-question .q-icon {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            border-radius: 8px;
            font-size: 0.75rem;
            font-weight: 700;
            margin-right: 0.75rem;
        }

        .faq-question .q-text {
            flex: 1;
        }

        .faq-question .q-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: #f1f5f9;
            color: var(--text-light);
            font-size: 0.75rem;
            transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
        }

        .faq-panel.active .q-arrow {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            border-top: 1px solid #f1f5f9;
            padding-top: 1rem;
            font-size: 0.95rem;
            line-height: 1.75;
            color: var(--text-light);
        }

        /* ---------- 侧栏卡片 ---------- */
        .side-help-card {
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            position: sticky;
            top: 100px;
        }

        .side-help-card .help-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }

        .side-help-card .help-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 1.25rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 999px;
            transition: transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1.5px solid var(--border);
            color: var(--text-light);
            font-size: 0.9rem;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 999px;
            transition: all 0.3s ease;
            background: #fff;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ---------- 帮助流程 ---------- */
        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .step-num {
            width: 44px;
            height: 44px;
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            border-radius: 12px;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.25);
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .step-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            font-size: 1.2rem;
        }

        /* ---------- 统计区块 ---------- */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, #1e293b 50%, rgba(79, 70, 229, 0.3) 100%);
            color: #fff;
        }

        .stats-section .stat-num {
            font-size: 2.5rem;
            font-weight: 900;
            line-height: 1.2;
            background: linear-gradient(135deg, #fff, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stats-section .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ---------- CTA ---------- */
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            border-radius: var(--radius-xl);
            padding: 4rem 3rem;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(251, 191, 36, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .cta-box::after {
            content: "";
            position: absolute;
            left: -40px;
            bottom: -100px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .cta-title {
            font-size: 1.8rem;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 0.75rem;
        }

        .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .cta-box .btn-light {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 12px 32px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }

        .cta-box .btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
        }

        .cta-box .btn-ghost-light {
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            padding: 12px 32px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
        }

        .cta-box .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 4rem 0 2rem;
            margin-top: 5rem;
        }

        .site-footer .logo {
            color: #fff;
        }

        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 1rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 0.35rem 0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .site-footer .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 3rem;
            padding-top: 1.5rem;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ---------- 搜索无结果 ---------- */
        .faq-empty {
            display: none;
            text-align: center;
            padding: 2rem;
            color: var(--text-light);
            font-size: 0.95rem;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .page-hero {
                padding: 5rem 0;
            }

            .hero-title {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 3.5rem 0;
            }

            .page-hero {
                padding: 4rem 0;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-stats {
                gap: 1.5rem;
            }

            .hero-stat-item .num {
                font-size: 1.3rem;
            }

            .topic-card {
                min-height: 220px;
                padding: 1.5rem;
            }

            .cta-box {
                padding: 3rem 1.5rem;
            }

            .cta-title {
                font-size: 1.4rem;
            }

            .side-help-card {
                position: relative;
                top: auto;
                margin-top: 2rem;
            }

            .step-arrow {
                transform: rotate(90deg);
                margin: 0.5rem 0;
            }
        }

        @media (max-width: 520px) {
            .hero-search {
                flex-direction: column;
                background: transparent;
                box-shadow: none;
                padding: 0;
                gap: 0.75rem;
            }

            .hero-search input {
                width: 100%;
                padding: 12px 20px;
                border-radius: 999px;
                background: #fff;
                font-size: 0.9rem;
                box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            }

            .hero-search button {
                width: 100%;
                justify-content: center;
            }

            .hero-search i {
                display: none;
            }

            .hero-stats {
                gap: 1rem;
            }

            .stats-section .stat-num {
                font-size: 1.8rem;
            }
        }