/* roulang page: index */
:root {
  --primary: #1e5eff;
  --primary-dark: #0e3fb8;
  --primary-deep: #081f5c;
  --accent: #f5a623;
  --bg: #f7f9fc;
  --bg-dark: #0b1a3a;
  --text: #14213d;
  --text-muted: #5a6d8a;
  --border: #e4e9f2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(20, 33, 61, 0.06);
  --shadow-md: 0 12px 32px rgba(20, 33, 61, 0.1);
  --shadow-lg: 0 24px 60px rgba(20, 33, 61, 0.14);
  --space-section: 96px;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

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

ul, ol, li {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 94, 255, 0.15);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 2px;
  transition: color 0.2s;
}

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

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

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  transition: all 0.25s ease;
  box-shadow: 0 6px 16px rgba(30, 94, 255, 0.24);
}

.header-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(30, 94, 255, 0.3);
}

.nav-toggle {
  display: none;
  font-size: 22px;
  color: var(--text);
  padding: 6px;
}

.hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 140px 0 110px;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 25, 64, 0.95) 20%, rgba(7, 25, 64, 0.72) 55%, rgba(7, 25, 64, 0.45));
  z-index: -1;
}

.hero-content {
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #eaf0ff;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}

.hero h1 {
  font-size: 48px;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 28px;
}

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

.hero-stat b {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
}

.hero-stat span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 999px;
  transition: all 0.25s ease;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: #14213d;
  box-shadow: 0 10px 24px rgba(245, 166, 35, 0.3);
}

.btn-primary:hover {
  background: #ffb84d;
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  background: transparent;
}

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

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.section {
  padding: var(--space-section) 0;
}

.section-soft {
  background: #f0f4ff;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-head .section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(30, 94, 255, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

.section-band-dark {
  background: linear-gradient(135deg, #0b1a3a 0%, #10265c 100%);
  color: #fff;
}

.section-band-dark .section-title {
  color: #fff;
}

.section-band-dark .section-sub {
  color: rgba(255, 255, 255, 0.75);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(30, 94, 255, 0.25);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eaf0ff, #dbe6ff);
  color: var(--primary);
  font-size: 22px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  display: block;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

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

.category-cover {
  height: 220px;
  overflow: hidden;
}

.category-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.category-card:hover .category-cover img {
  transform: scale(1.05);
}

.category-body {
  padding: 28px;
}

.category-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.news-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: all 0.25s ease;
}

.news-item:hover {
  border-color: rgba(30, 94, 255, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(30, 94, 255, 0.08);
  padding: 4px 12px;
  border-radius: 999px;
  min-width: 84px;
  text-align: center;
}

.news-body {
  flex: 1;
  min-width: 0;
}

.news-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-body p {
  font-size: 14px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-date {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.news-empty {
  text-align: center;
  padding: 48px 24px;
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-item {
  position: relative;
  padding: 36px 28px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
  transition: all 0.25s ease;
}

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

.step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(30, 94, 255, 0.28);
}

.step-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.stats-band {
  background: linear-gradient(120deg, var(--primary-deep), var(--primary-dark));
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 36px 20px;
}

.stat-item b {
  font-size: 40px;
  font-weight: 800;
  display: block;
  color: var(--accent);
  line-height: 1.2;
}

.stat-item span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.text-image-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.text-image-media {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.text-image-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.text-image-content .section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(30, 94, 255, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.check-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
}

.check-list i {
  color: var(--primary);
}

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

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.faq-item[open] {
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
}

.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: 14px;
  color: var(--text-muted);
  transition: transform 0.3s;
}

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

.faq-answer {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

.cta-band {
  position: relative;
  padding: 90px 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat fixed;
  color: #fff;
  text-align: center;
  isolation: isolate;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(8, 26, 62, 0.82);
  z-index: -1;
}

.cta-band h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-band p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 28px;
}

.site-footer {
  background: #081326;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 28px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 340px;
}

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

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
}

.footer-col {
  min-width: 140px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 48px;
  padding-top: 24px;
  font-size: 13px;
  text-align: center;
  color: rgba(255, 255, 255, 0.45);
}

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

  .text-image-band {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 0;
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding: 90px 0 70px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 15px;
  }

  .cta-band {
    background-attachment: scroll;
  }

  .cta-band h2 {
    font-size: 28px;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

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

  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 20px;
  }

  .news-body p,
  .news-body h3 {
    white-space: normal;
  }

  .footer-inner {
    flex-direction: column;
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .section-title {
    font-size: 26px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #eff6ff;
            --accent: #06b6d4;
            --accent-dark: #0891b2;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --text: #1e293b;
            --text-weak: #64748b;
            --text-faint: #94a3b8;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
            --shadow-lg: 0 18px 44px rgba(15, 23, 42, .12);
            --transition: all .28s cubic-bezier(.4, 0, .2, 1);
            --container-w: 1200px;
            --header-h: 76px;
            --section-space: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

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

        .grid-container {
            max-width: var(--container-w);
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .04em;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -.02em;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-sub {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.75;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, .28);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(37, 99, 235, .32);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .65);
        }

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

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, .14);
        }

        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .4);
            outline-offset: 2px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: -.01em;
            transition: var(--transition);
            line-height: 1.2;
        }

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

        .logo-dot {
            width: 11px;
            height: 11px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .18);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .nav-link {
            position: relative;
            padding: 8px 4px;
            color: var(--text-weak);
            text-decoration: none;
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
            line-height: 1.4;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transform: translateX(-50%);
            transition: var(--transition);
        }

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

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

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
        }

        .header-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(37, 99, 235, .3);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 22px;
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
        }

        .nav-toggle:hover {
            background: var(--bg-alt);
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #172e4b 46%, #0d4f7a 100%);
            color: #fff;
            padding: 84px 0 76px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 20%;
            opacity: .18;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(6, 182, 212, .28), transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 26px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, .1);
            border-radius: 999px;
            width: fit-content;
            backdrop-filter: blur(4px);
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, .7);
            text-decoration: none;
        }

        .hero-breadcrumb a:hover {
            color: #fff;
        }

        .hero-breadcrumb .active {
            color: #fff;
            font-weight: 600;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: .03em;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -.02em;
            margin-bottom: 18px;
            max-width: 700px;
        }

        .page-hero h1 span {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            max-width: 640px;
            line-height: 1.85;
            margin-bottom: 32px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hero-meta {
            display: flex;
            gap: 28px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, .16);
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
        }

        .hero-meta-item i {
            color: var(--accent);
            font-size: 16px;
        }

        /* Entry Cards */
        .entry-section {
            background: var(--bg);
        }

        .entry-card {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

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

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

        .entry-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 22px;
            transition: var(--transition);
        }

        .entry-card:hover .entry-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.06);
        }

        .entry-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .entry-card p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .entry-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* Steps */
        .steps-section {
            background: var(--bg-alt);
            position: relative;
        }

        .steps-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .04;
            pointer-events: none;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .step-item {
            text-align: center;
            padding: 32px 18px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }

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

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
            position: relative;
            z-index: 1;
        }

        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 48px;
            left: calc(50% + 40px);
            width: calc(100% - 48px);
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* Safety */
        .safety-section {
            background: var(--dark);
            color: #fff;
            overflow: hidden;
            position: relative;
        }

        .safety-section::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: .12;
            pointer-events: none;
        }

        .safety-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .safety-copy h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .safety-copy h2 span {
            color: var(--accent);
        }

        .safety-copy p {
            color: rgba(255, 255, 255, .78);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .safety-list {
            display: grid;
            gap: 14px;
        }

        .safety-list-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }

        .safety-list-item:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateX(4px);
        }

        .safety-list-item i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .safety-list-item div {
            flex: 1;
        }

        .safety-list-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .safety-list-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, .68);
            line-height: 1.55;
            margin-bottom: 0;
        }

        /* Resources */
        .resource-card {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .resource-cover {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

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

        .resource-card:hover .resource-cover img {
            transform: scale(1.05);
        }

        .resource-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, .2));
        }

        .resource-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(15, 23, 42, .72);
            color: #fff;
            backdrop-filter: blur(6px);
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            z-index: 2;
        }

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

        .resource-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .resource-body p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

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

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

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 22px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .36s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(125deg, #1d4ed8, #0ea5e9);
            color: #fff;
            text-align: center;
            padding: 76px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            top: -180px;
            right: -120px;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            bottom: -120px;
            left: -60px;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -.01em;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .88);
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 64px 0 32px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-dot {
            background: var(--accent);
            box-shadow: 0 0 0 3px rgba(6, 182, 212, .2);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 14px;
            margin-bottom: 12px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #64748b;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --section-space: 72px;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .step-item:not(:last-child)::after {
                display: none;
            }

            .safety-inner {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
                --section-space: 56px;
            }

            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                transition: var(--transition);
                z-index: 999;
                opacity: 0;
                pointer-events: none;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-link {
                width: 100%;
                padding: 12px 8px;
                border-radius: var(--radius-sm);
            }

            .nav-link::after {
                display: none;
            }

            .nav-link.active {
                background: var(--primary-light);
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .page-hero {
                padding: 56px 0 48px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .hero-meta {
                flex-direction: column;
                gap: 14px;
            }

            .section-title {
                font-size: 26px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .cta-inner h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .entry-card {
                padding: 24px 20px;
            }

            .hero-btns .btn {
                width: 100%;
                justify-content: center;
            }

            .cta-btns .btn {
                width: 100%;
                justify-content: center;
            }

            .section-head {
                margin-bottom: 36px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: article */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #eaf0ff;
  --accent: #0d9488;
  --accent-soft: #ccfbf1;
  --ink: #0f172a;
  --text: #334155;
  --text-weak: #94a3b8;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --bg-dark: #0b1220;
  --line: #e2e8f0;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(15,23,42,.05);
  --shadow-md: 0 8px 28px rgba(15,23,42,.08);
  --shadow-lg: 0 24px 64px rgba(15,23,42,.12);
  --nav-h: 72px;
  --space: 96px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-weight: 700; color: var(--ink); line-height: 1.35; }
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 28px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .5px;
}
.logo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 4px var(--primary-soft);
}
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-link {
  position: relative;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text);
  padding: 6px 2px;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 4px;
  background: var(--primary);
  transition: width .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(37,99,235,.3);
  transition: all .3s ease;
}
.header-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(37,99,235,.4); }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--ink);
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary); }
.article-hero {
  position: relative;
  padding: 84px 0 90px;
  background: linear-gradient(135deg, rgba(11,18,32,.86), rgba(30,64,175,.74)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
}
.article-hero .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .86rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 26px;
}
.article-hero .breadcrumb a { color: rgba(255,255,255,.7); }
.article-hero .breadcrumb a:hover { color: #fff; }
.article-hero .breadcrumb i { font-size: .7rem; opacity: .7; }
.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  color: #fff;
  max-width: 900px;
  line-height: 1.3;
  margin: 0 0 20px;
  text-shadow: 0 2px 18px rgba(0,0,0,.3);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: rgba(255,255,255,.85);
  font-size: .92rem;
}
.meta-item { display: inline-flex; align-items: center; gap: 7px; }
.meta-item i { opacity: .75; }
.article-wrap {
  padding: var(--space) 0;
  background: var(--bg-soft);
}
.article-main .article-content {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 48px);
  box-shadow: var(--shadow-sm);
}
.article-content h2 {
  font-size: 1.6rem;
  margin: 2.6em 0 1em;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}
.article-content h3 {
  font-size: 1.25rem;
  margin: 2.2em 0 .8em;
  color: var(--ink);
}
.article-content h4 {
  font-size: 1.05rem;
  margin: 1.8em 0 .6em;
  color: var(--ink);
}
.article-content p {
  font-size: 1.02rem;
  line-height: 1.95;
  margin: 0 0 1.4em;
  color: var(--text);
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.5em;
  padding-left: 1.5em;
}
.article-content ul li { list-style: disc; margin-bottom: .5em; }
.article-content ol li { list-style: decimal; margin-bottom: .5em; }
.article-content blockquote {
  margin: 1.6em 0;
  padding: 18px 24px;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 12px 12px 0;
  color: var(--ink);
  font-size: 1.02rem;
}
.article-content blockquote p { margin: 0; }
.article-content img { border-radius: var(--radius); margin: 1.4em 0; box-shadow: var(--shadow-sm); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: .95rem;
}
.article-content th {
  background: var(--primary-soft);
  color: var(--ink);
  font-weight: 600;
  padding: 12px 14px;
  border: 1px solid var(--line);
}
.article-content td { padding: 11px 14px; border: 1px solid var(--line); }
.article-content code {
  background: var(--bg-soft);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: .9em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color: var(--primary-dark);
}
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--accent); }
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .84rem;
  color: var(--text);
  transition: all .3s ease;
}
.tag:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
.article-aside { display: flex; flex-direction: column; gap: 24px; }
.side-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
}
.side-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 16px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
}
.side-list li { margin-bottom: 6px; }
.side-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 10px;
  font-size: .9rem;
  color: var(--text);
  transition: all .25s ease;
}
.side-list a:hover { background: var(--bg-soft); color: var(--primary); }
.side-list i { font-size: .72rem; color: var(--text-weak); }
.side-cta {
  text-align: center;
  padding: 10px 0 2px;
}
.side-cta p {
  font-size: .9rem;
  color: var(--text);
  margin: 0 0 18px;
}
.side-cta-btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 11px 34px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(37,99,235,.28);
  transition: all .3s ease;
}
.side-cta-btn:hover { background: var(--primary-dark); transform: translateY(-2px); }
.related-section {
  padding: var(--space) 0;
  background: #fff;
  border-top: 1px solid var(--line);
}
.section-head { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 6px 18px;
  border-radius: 999px;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-title { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 12px; }
.section-desc { color: var(--text); font-size: 1rem; max-width: 560px; margin: 0 auto; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.post-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease;
}
.post-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.post-card-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.post-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.post-card:hover .post-card-img img { transform: scale(1.05); }
.post-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(15,23,42,.35));
}
.post-card-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(6px);
  color: var(--primary);
  font-size: .78rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
}
.post-card-body { padding: 22px 22px 24px; }
.post-card-title {
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.42;
  margin: 0 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card-title a:hover { color: var(--primary); }
.post-card-meta { display: flex; gap: 16px; font-size: .82rem; color: var(--text-weak); }
.post-card-meta i { margin-right: 4px; }
.faq-section {
  padding: var(--space) 0;
  background: var(--bg-soft);
}
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
}
.faq-q i { color: var(--primary); transition: transform .3s ease; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-ao {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-a {
  padding: 0 26px 22px;
  color: var(--text);
  font-size: .95rem;
  line-height: 1.85;
}
.cta-section {
  position: relative;
  padding: 76px 0;
  background: linear-gradient(135deg, rgba(11,18,32,.88), rgba(29,78,216,.8)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
}
.cta-title {
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  color: #fff;
  margin: 0 0 16px;
}
.cta-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,.85);
  max-width: 600px;
  margin: 0 auto 34px;
}
.cta-btn {
  display: inline-block;
  background: #fff;
  color: var(--primary-dark);
  font-size: 1.02rem;
  font-weight: 700;
  padding: 15px 44px;
  border-radius: 999px;
  box-shadow: 0 10px 34px rgba(0,0,0,.22);
  transition: all .3s ease;
}
.cta-btn:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(0,0,0,.3); color: var(--primary); }
.notfound-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 80px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.notfound-box i {
  font-size: 3.2rem;
  color: var(--text-weak);
  margin-bottom: 18px;
  display: inline-block;
}
.notfound-box h2 { font-size: 1.8rem; margin: 0 0 12px; }
.notfound-box p { color: var(--text); margin: 0 0 28px; }
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 13px 36px;
  border-radius: 999px;
  font-weight: 600;
  transition: all .3s ease;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.72);
  padding-top: 70px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo { color: #fff; font-size: 1.2rem; }
.footer-brand .logo .logo-dot { background: linear-gradient(135deg, #60a5fa, #2dd4bf); box-shadow: 0 0 0 4px rgba(255,255,255,.08); }
.footer-brand p { margin: 16px 0 0; font-size: .92rem; line-height: 1.8; color: rgba(255,255,255,.55); max-width: 320px; }
.footer-col h4 {
  color: #fff;
  font-size: .95rem;
  margin: 0 0 20px;
  letter-spacing: 1px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: .9rem;
  padding: 5px 0;
  transition: color .25s ease, padding-left .25s ease;
}
.footer-col a:hover { color: #fff; padding-left: 5px; }
.footer-bottom {
  text-align: center;
  padding: 24px 0;
  font-size: .85rem;
  color: rgba(255,255,255,.4);
}
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --space: 64px; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 18px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-link { display: block; padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-link:last-child { border-bottom: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta { padding: 9px 16px; font-size: .84rem; }
  .article-hero { padding: 56px 0 64px; }
  .article-wrap { padding: 56px 0; }
  .article-content { padding: 22px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { text-align: center; }
}
@media (max-width: 520px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .header-inner { gap: 10px; }
  .logo { font-size: .98rem; }
  .header-cta span { display: none; }
  .article-hero h1 { font-size: 1.45rem; }
  .article-meta { gap: 12px; font-size: .84rem; }
  .article-content h2 { font-size: 1.28rem; }
  .article-content h3 { font-size: 1.1rem; }
  .article-tags { gap: 8px; }
  .faq-q { padding: 18px 18px; font-size: .93rem; }
  .faq-a { padding: 0 18px 18px; }
  .cta-section { padding: 52px 0; }
  .cta-btn { padding: 13px 34px; font-size: .96rem; }
}

/* roulang page: category2 */
:root {
            --primary: #4F6AF5;
            --primary-dark: #3A50C8;
            --accent: #10B981;
            --dark: #0E1A33;
            --bg: #F6F7FC;
            --text: #1E293B;
            --muted: #64748B;
            --border: #E5E9F0;
            --radius: 16px;
            --shadow: 0 8px 30px rgba(14, 26, 51, 0.06);
            --shadow-lg: 0 18px 40px rgba(14, 26, 51, 0.10);
            --surface: #FFFFFF;
            --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;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section {
            padding: 88px 0;
        }

        .section-head {
            text-align: center;
            max-width: 660px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(79, 106, 245, 0.10);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 6px 16px;
            border-radius: 24px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-head p {
            font-size: 1.05rem;
            color: var(--muted);
            line-height: 1.7;
        }

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

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.22rem;
            font-weight: 800;
            color: var(--dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

        .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(79, 106, 245, 0.15);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--muted);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
        }

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

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

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--dark);
            color: #fff;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .header-cta:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79, 106, 245, 0.25);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--dark);
            cursor: pointer;
            padding: 6px;
            line-height: 1;
        }

        .page-hero {
            position: relative;
            padding: 104px 0;
            text-align: center;
            color: #fff;
            background: linear-gradient(135deg, rgba(14, 26, 51, 0.92) 0%, rgba(50, 70, 130, 0.82) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb span {
            opacity: 0.5;
        }

        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 18px;
        }

        .page-hero h1 span {
            color: #A8B7FF;
        }

        .page-hero .hero-desc {
            font-size: 1.15rem;
            max-width: 680px;
            margin: 0 auto 36px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.75;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 106, 245, 0.30);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(79, 106, 245, 0.40);
        }

        .btn-ghost {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-light {
            background: #fff;
            color: var(--dark);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }

        .btn-light:hover {
            background: var(--bg);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

        .feature-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(79, 106, 245, 0.30);
        }

        .feature-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--dark);
        }

        .feature-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .feature-card:hover .card-media img {
            transform: scale(1.04);
        }

        .feature-card .card-body {
            padding: 28px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .feature-card .card-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-block;
            background: rgba(79, 106, 245, 0.08);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            border: 1px solid rgba(79, 106, 245, 0.12);
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.08);
            color: #0B8A62;
            border-color: rgba(16, 185, 129, 0.18);
        }

        .badge-purple {
            background: rgba(139, 92, 246, 0.08);
            color: #7C3AED;
            border-color: rgba(139, 92, 246, 0.16);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--muted);
            line-height: 1.65;
            flex: 1;
        }

        .card-footer-link {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
        }

        .matrix-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .matrix-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .matrix-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

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

        .matrix-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: rgba(79, 106, 245, 0.10);
            color: var(--primary);
            margin-bottom: 20px;
        }

        .matrix-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .matrix-card p {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.6;
        }

        .section-stats {
            background: linear-gradient(135deg, rgba(14, 26, 51, 0.93) 0%, rgba(30, 41, 59, 0.90) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            padding: 80px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-card {
            text-align: center;
            padding: 16px 8px;
        }

        .stat-number {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .stat-number small {
            font-size: 1.1rem;
            font-weight: 700;
            color: #A8B7FF;
            margin-left: 2px;
        }

        .stat-label {
            margin-top: 10px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
        }

        .article-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .article-card .article-media {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }

        .article-card .article-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .article-card:hover .article-media img {
            transform: scale(1.05);
        }

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

        .article-meta {
            font-size: 0.82rem;
            color: var(--muted);
            margin-bottom: 10px;
            display: flex;
            gap: 12px;
        }

        .article-meta i {
            margin-right: 4px;
        }

        .article-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .article-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.6;
            flex: 1;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 32px;
        }

        .step-item {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 36px 28px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            text-align: left;
            position: relative;
            transition: var(--transition);
        }

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

        .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.18;
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }

        .step-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
            background: rgba(79, 106, 245, 0.10);
            margin-bottom: 16px;
        }

        .step-item h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.6;
        }

        .faq-section {
            background: var(--surface);
        }

        .faq-accordion {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-accordion .accordion-item {
            background: transparent;
            border: none;
            margin-bottom: 14px;
        }

        .faq-accordion .accordion-title {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 14px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            padding: 18px 20px;
            position: relative;
            transition: var(--transition);
        }

        .faq-accordion .accordion-title:hover {
            background: rgba(79, 106, 245, 0.06);
            border-color: rgba(79, 106, 245, 0.25);
        }

        .faq-accordion .accordion-item.is-active .accordion-title {
            background: rgba(79, 106, 245, 0.05);
            border-color: rgba(79, 106, 245, 0.30);
            border-radius: 14px 14px 0 0;
            color: var(--primary);
        }

        .faq-accordion .accordion-title::before {
            content: '\f078';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%) rotate(0deg);
            transition: transform 0.3s ease;
            font-size: 0.85rem;
            color: var(--muted);
        }

        .faq-accordion .accordion-item.is-active .accordion-title::before {
            transform: translateY(-50%) rotate(180deg);
            color: var(--primary);
        }

        .faq-accordion .accordion-content {
            background: var(--bg);
            border: 1px solid var(--border);
            border-top: none;
            border-radius: 0 0 14px 14px;
            padding: 4px 20px 20px;
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-accordion .accordion-content p {
            margin-bottom: 0;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 24px;
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-box p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
        }

        .cta-box .btn {
            position: relative;
            z-index: 1;
        }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 14px;
            max-width: 320px;
        }

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

        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .site-footer .logo-dot {
            background: #fff;
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.10);
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }

            .section {
                padding: 68px 0;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-toggle {
                display: block;
            }

            .header-cta {
                display: none;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px 20px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(14, 26, 51, 0.08);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                font-size: 1rem;
                padding: 10px 0;
                width: 100%;
            }

            .nav-link::after {
                display: none;
            }

            .page-hero {
                padding: 72px 0;
            }

            .page-hero h1 {
                font-size: 2.1rem;
            }

            .page-hero .hero-desc {
                font-size: 1rem;
            }

            .section-head h2 {
                font-size: 1.75rem;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 36px;
            }

            .cta-box {
                padding: 44px 24px;
            }

            .cta-box h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .section {
                padding: 52px 0;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-number {
                font-size: 2rem;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .feature-card .card-body {
                padding: 20px 16px;
            }

            .page-hero h1 {
                font-size: 1.75rem;
            }

            .faq-accordion .accordion-title {
                font-size: 0.92rem;
                padding: 14px 14px;
                padding-right: 40px;
            }

            .faq-accordion .accordion-content {
                padding: 2px 16px 14px;
            }

            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 440px) {
            .logo {
                font-size: 1.05rem;
            }
        }