/* roulang page: index */
:root {
  --primary: #f5b942;
  --primary-hover: #ffc75e;
  --primary-dark: #c98f1b;
  --bg: #0b0f1a;
  --bg-soft: #0e1322;
  --panel: #12182a;
  --panel-2: #1a2236;
  --text: #e8ecf1;
  --text-weak: #8b95a8;
  --border: rgba(255, 255, 255, 0.07);
  --border-primary: rgba(245, 185, 66, 0.25);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --transition: all .3s ease;
  --space: 88px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #0b0f1a;
  box-shadow: 0 8px 24px rgba(245, 185, 66, 0.25);
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: #0b0f1a;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 185, 66, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--text);
  background: transparent;
}

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

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0b0f1a;
  font-size: 18px;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, var(--primary), #ffd98a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

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

.site-nav a {
  padding: 10px 16px;
  border-radius: 50px;
  color: var(--text-weak);
  font-size: 15px;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.site-nav a.active {
  color: var(--primary);
  background: rgba(245, 185, 66, 0.1);
  font-weight: 600;
}

.header-cta {
  padding: 10px 24px;
  font-size: 14px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  flex-shrink: 0;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  padding: 120px 0 110px;
  background: linear-gradient(135deg, rgba(11, 15, 26, 0.92) 0%, rgba(11, 15, 26, 0.72) 45%, rgba(11, 15, 26, 0.55) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero:after {
  content: '';
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: rgba(245, 185, 66, 0.08);
  filter: blur(80px);
  top: -160px;
  right: -120px;
  pointer-events: none;
}

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

.hero-badge {
  margin-bottom: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 185, 66, 0.12);
  border: 1px solid var(--border-primary);
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: clamp(16px, 1.5vw, 20px);
  max-width: 660px;
  color: rgba(232, 236, 241, 0.85);
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  border-top: 1px solid var(--border);
  padding-top: 28px;
  max-width: 700px;
}

.hero-stat {
  flex: 1;
  text-align: left;
}

.hero-stat + .hero-stat {
  border-left: 1px solid var(--border);
  padding-left: 28px;
}

.hero-stat strong {
  display: block;
  font-size: 24px;
  color: var(--primary);
  font-weight: 800;
  line-height: 1.3;
}

.hero-stat span {
  font-size: 13px;
  color: var(--text-weak);
}

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

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

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(245, 185, 66, 0.1);
  border: 1px solid var(--border-primary);
  color: var(--primary);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-head h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-head p {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
}

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

.feature-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  height: 100%;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-primary);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(245, 185, 66, 0.2), rgba(245, 185, 66, 0.05));
  border: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 26px;
  margin-bottom: 22px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

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

.category-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  position: relative;
}

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

.category-thumb {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 15, 26, 0.7), transparent);
}

.category-body {
  padding: 26px 24px 28px;
}

.category-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.category-body p {
  color: var(--text-weak);
  font-size: 14px;
  margin-bottom: 18px;
  line-height: 1.7;
}

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

.category-link i {
  transition: var(--transition);
}

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

.news-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.news-list {
  max-width: 900px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 26px 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  transition: var(--transition);
}

.news-item:hover {
  border-color: var(--border-primary);
  transform: translateX(6px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.news-order {
  font-size: 24px;
  font-weight: 800;
  color: var(--border-primary);
  min-width: 48px;
  text-align: center;
}

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

.news-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.news-cat {
  background: rgba(245, 185, 66, 0.12);
  color: var(--primary);
  border: 1px solid var(--border-primary);
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

.news-meta time {
  color: var(--text-weak);
  font-size: 13px;
}

.news-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  transition: var(--transition);
}

.news-item:hover h3 {
  color: var(--primary);
}

.news-item p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-arrow {
  color: var(--text-weak);
  font-size: 18px;
  transition: var(--transition);
}

.news-item:hover .news-arrow {
  color: var(--primary);
  transform: translateX(4px);
}

.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-weak);
}

.news-empty i {
  font-size: 40px;
  margin-bottom: 16px;
  color: var(--border-primary);
  display: block;
}

.steps-section {
  background: var(--panel);
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps-section:before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  opacity: 0.12;
}

.steps-section .container {
  position: relative;
  z-index: 2;
}

.step-item {
  background: rgba(11, 15, 26, 0.75);
  border: 1px solid rgba(245, 185, 66, 0.2);
  border-radius: var(--radius);
  padding: 36px 30px;
  height: 100%;
  transition: var(--transition);
}

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

.step-num {
  font-size: 44px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), #ffd98a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1;
}

.step-item h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-item p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
}

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

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  border-color: var(--border-primary);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

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

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

.faq-answer {
  display: none;
  padding: 0 26px 22px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
}

.cta-section {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(135deg, rgba(11, 15, 26, 0.9) 0%, rgba(11, 15, 26, 0.75) 100%), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border-top: 1px solid var(--border);
}

.cta-inner {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-inner p {
  color: var(--text-weak);
  font-size: 16px;
  margin-bottom: 32px;
}

.site-footer {
  background: #080b14;
  border-top: 1px solid var(--border);
  padding: 64px 0 30px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 360px;
}

.footer-logo {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), #ffd98a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.footer-col a {
  display: block;
  color: var(--text-weak);
  font-size: 14px;
  padding: 6px 0;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
  color: #5a6474;
  font-size: 13px;
}

.footer-bottom p+p {
  margin-top: 6px;
}

@media (max-width: 1024px) {
  :root {
    --space: 70px;
  }
  .hero {
    padding: 100px 0 80px;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(11, 15, 26, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    padding: 14px 16px;
    border-radius: 12px;
  }
  .header-cta {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .hero-stats {
    flex-direction: column;
    gap: 16px;
    max-width: 100%;
  }
  .hero-stat + .hero-stat {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 16px;
  }
  .footer-top {
    flex-direction: column;
    gap: 24px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  :root {
    --space: 56px;
  }
  .hero {
    padding: 80px 0 60px;
  }
  .news-item {
    flex-wrap: wrap;
    padding: 20px;
  }
  .news-order {
    display: none;
  }
  .news-arrow {
    display: none;
  }
  .brand-name {
    font-size: 17px;
  }
}

/* roulang page: category1 */
:root {
    --primary: #c9a227;
    --primary-dark: #a8851d;
    --primary-light: #e8ce7f;
    --secondary: #1a1a2e;
    --secondary-light: #2d2d44;
    --dark: #0b0b10;
    --dark-bg: #12121a;
    --body-bg: #f5f3ee;
    --white: #ffffff;
    --text: #1c1c28;
    --text-light: #5b5b6b;
    --border: #e6e0d2;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 12px rgba(0,0,0,.06);
    --shadow-md: 0 8px 30px rgba(0,0,0,.09);
    --shadow-lg: 0 18px 50px rgba(0,0,0,.14);
    --space-section: 90px;
    --transition: all .25s ease;
}

*, *::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;
    background: var(--body-bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(11, 11, 16, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 162, 39, 0.25);
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--dark);
    font-size: 18px;
}

.brand-name {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
    color: #fff;
    white-space: nowrap;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.site-nav a {
    color: rgba(255, 255, 255, .78);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    padding: 6px 2px;
    letter-spacing: .5px;
}

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

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

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

.site-nav a.active {
    color: var(--primary-light);
}

.header-cta {
    margin-left: auto;
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    padding: 10px 24px;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: .5px;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    line-height: 1.4;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 3px;
}

.btn-primary {
    background: linear-gradient(135deg, #e6bd3f, var(--primary-dark));
    color: #111;
    box-shadow: 0 4px 18px rgba(201, 162, 39, .35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 26px rgba(201, 162, 39, .5);
    color: #111;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(201, 162, 39, .3);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: rgba(201, 162, 39, .08);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 10px;
    cursor: pointer;
    padding: 8px;
    transition: var(--transition);
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}

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

.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Page Hero ---------- */
.page-hero {
    background: linear-gradient(135deg, #0d0d16 0%, #1a1a2e 55%, #2a1f0e 100%);
    position: relative;
    overflow: hidden;
    padding: 90px 0 70px;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: .28;
}

.page-hero::after {
    content: '';
    position: absolute;
    right: -160px;
    top: -100px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(201, 162, 39, .18) 0%, transparent 70%);
    border-radius: 50%;
}

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

.page-hero h1 {
    color: #fff;
    font-size: 42px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.page-hero p {
    color: rgba(255, 255, 255, .78);
    font-size: 17px;
    max-width: 680px;
    margin-bottom: 28px;
    line-height: 1.7;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(201, 162, 39, .14);
    border: 1px solid rgba(201, 162, 39, .4);
    color: var(--primary-light);
    border-radius: 999px;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: .8px;
    text-transform: uppercase;
}

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

/* ---------- Section Common ---------- */
.section {
    padding: var(--space-section) 0;
}

.section-alt {
    background: #fff;
}

.section-head {
    margin-bottom: 44px;
    max-width: 760px;
}

.section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-head .tag {
    display: inline-block;
    background: rgba(201, 162, 39, .12);
    color: var(--primary-dark);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 5px 14px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-head h2 {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 10px;
}

.section-head p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.7;
}

/* ---------- Entry Panel ---------- */
.entry-panel {
    background: linear-gradient(135deg, #141420, #1d1d30);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: #fff;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(201, 162, 39, .2);
    margin-top: 60px;
}

.entry-panel::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(201,162,39,.22), transparent 70%);
    border-radius: 50%;
}

.entry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    position: relative;
    z-index: 2;
}

.entry-card {
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .1);
    backdrop-filter: blur(6px);
    border-radius: var(--radius-md);
    padding: 26px 22px;
    text-align: center;
    transition: var(--transition);
}

.entry-card:hover {
    background: rgba(255, 255, 255, .1);
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,.25);
}

.entry-card i {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 14px;
    display: block;
}

.entry-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}

.entry-card p {
    font-size: 13px;
    color: rgba(255,255,255,.7);
    line-height: 1.6;
}

/* ---------- Steps ---------- */
.steps-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
    margin-top: 30px;
}

.step-item {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 32px 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: var(--transition);
}

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

.step-num {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: #111;
    margin-bottom: 18px;
}

.step-item h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

.step-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ---------- Feature Compare ---------- */
.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-detail-card {
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.feature-detail-card .card-img {
    height: 190px;
    overflow: hidden;
    position: relative;
}

.feature-detail-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-detail-card .card-body {
    padding: 26px;
}

.feature-detail-card .card-tag {
    display: inline-block;
    background: rgba(201, 162, 39, .12);
    color: var(--primary-dark);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    margin-bottom: 12px;
}

.feature-detail-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-detail-card p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 16px;
}

/* ---------- Alert/Safety ---------- */
.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.safety-card {
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 28px;
    display: flex;
    gap: 18px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.safety-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 162, 39, .1);
    color: var(--primary-dark);
    font-size: 20px;
}

.safety-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.safety-card p {
    font-size: 13.5px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-item summary {
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    position: relative;
    transition: var(--transition);
}

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

.faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 600;
    color: var(--primary-dark);
    transition: var(--transition);
    font-size: 14px;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item[open] summary {
    color: var(--primary-dark);
    border-bottom: 1px solid var(--border);
}

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

.faq-item p {
    padding: 18px 28px;
    color: var(--text-light);
    font-size: 14.5px;
    line-height: 1.7;
    background: #faf8f3;
}

/* ---------- CTA ---------- */
.cta-section {
    background: linear-gradient(135deg, #141420, #1e1e30);
    border-radius: var(--radius-lg);
    padding: 60px 48px;
    color: #fff;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity: .12;
}

.cta-section .cta-inner {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-section p {
    color: rgba(255,255,255,.75);
    max-width: 620px;
    margin: 0 auto 26px;
}

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

/* ---------- Footer ---------- */
.site-footer {
    background: var(--dark);
    color: rgba(255,255,255,.7);
    padding: 60px 0 30px;
    margin-top: 80px;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255,255,255,.1);
    margin-bottom: 24px;
}

.footer-brand {
    max-width: 380px;
}

.footer-logo {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    display: inline-block;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,.55);
}

.footer-col {
    min-width: 160px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,.55);
    font-size: 14px;
    margin-bottom: 10px;
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,.4);
}

/* ---------- Responsive ---------- */
@media screen and (max-width: 1024px) {
    .site-nav {
        gap: 20px;
    }
    .site-nav a {
        font-size: 14px;
    }
    :root {
        --space-section: 70px;
    }
}

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

    .site-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #12121a;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px 30px;
        gap: 0;
        transform: translateX(100%);
        transition: transform .35s ease;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid rgba(201,162,39,.2);
        z-index: 150;
        overflow-y: auto;
        max-height: calc(100vh - 64px);
    }

    .site-nav.open {
        transform: translateX(0);
    }

    .site-nav a {
        display: block;
        padding: 12px 0;
        font-size: 16px;
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,.06);
    }

    .site-nav a::after {
        display: none;
    }

    .site-nav a:last-child {
        border-bottom: none;
    }

    .nav-toggle {
        display: flex;
    }

    .header-cta {
        display: none;
    }

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

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

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

    .section-head h2 {
        font-size: 26px;
    }

    .entry-panel {
        padding: 28px 20px;
    }

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

    .cta-section h2 {
        font-size: 24px;
    }

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

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

@media screen and (max-width: 520px) {
    .container {
        padding: 0 16px;
    }

    .brand-name {
        font-size: 17px;
    }

    .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
        border-radius: 8px;
    }

    .page-hero h1 {
        font-size: 25px;
    }

    .page-hero p {
        font-size: 14px;
    }

    .section-head h2 {
        font-size: 22px;
    }

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

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

    .entry-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .entry-card {
        padding: 20px 16px;
    }

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

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

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

    .safety-card {
        flex-direction: column;
        gap: 12px;
    }

    .faq-item summary {
        padding: 16px 18px;
        font-size: 14.5px;
    }

    .faq-item p {
        padding: 14px 18px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-buttons .btn {
        justify-content: center;
    }

    .footer .container {
        padding: 0 16px;
    }
}

/* roulang page: article */
:root {
    --primary: #d4a853;
    --primary-light: #e8c87a;
    --primary-dark: #b0893a;
    --accent: #3b82f6;
    --bg-dark: #080c14;
    --bg-panel: #0f1727;
    --bg-card: #111d33;
    --bg-deep: #0b1220;
    --border: rgba(212, 168, 83, 0.22);
    --border-light: rgba(255, 255, 255, 0.07);
    --text-main: #e6e9ee;
    --text-body: #c0cad8;
    --text-muted: #7d8aa0;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 12px 40px rgba(0, 0, 0, 0.38);
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.22);
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --spacing-section: 84px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-main); background: var(--bg-dark); color: var(--text-main); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .25s ease, opacity .25s ease; }
button { cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }
.grid-container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(8, 12, 20, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-icon { width: 40px; height: 40px; border-radius: 10px; background: linear-gradient(135deg, var(--primary-light), var(--primary-dark)); display: flex; align-items: center; justify-content: center; color: #0a0e17; font-size: 1.15rem; box-shadow: 0 4px 14px rgba(212, 168, 83, 0.35); }
.brand-name { font-size: 1.28rem; font-weight: 800; letter-spacing: 1.5px; color: #fff; }
.brand-name span { color: var(--primary); }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { font-size: .95rem; font-weight: 500; color: var(--text-body); padding: 8px 2px; position: relative; letter-spacing: .5px; }
.site-nav a::after { content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--primary); border-radius: 2px; transition: width .3s ease; }
.site-nav a:hover { color: var(--primary-light); }
.site-nav a:hover::after { width: 100%; }
.site-nav a.active { color: var(--primary-light); font-weight: 600; }
.site-nav a.active::after { width: 100%; }
.header-cta { margin-left: 14px; flex-shrink: 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 26px; border-radius: 50px; font-weight: 600; font-size: .95rem; border: none; transition: all .3s cubic-bezier(.4, 0, .2, 1); line-height: 1.4; }
.btn-primary { background: linear-gradient(135deg, #e0bc6a, var(--primary-dark)); color: #0b0f1a; box-shadow: 0 4px 18px rgba(212, 168, 83, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(212, 168, 83, 0.42); color: #0b0f1a; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(212, 168, 83, 0.25); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary-light); }
.btn-outline:hover { background: rgba(212, 168, 83, 0.12); color: var(--primary-light); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-sm { padding: 8px 18px; font-size: .87rem; }
.btn:focus-visible, .site-nav a:focus-visible, .faq-question:focus-visible, .nav-toggle:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.nav-toggle { display: none; background: none; border: none; width: 42px; height: 42px; border-radius: 8px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text-main); border-radius: 2px; transition: all .3s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.page-banner { position: relative; padding: 80px 0 64px; background-size: cover; background-position: center; }
.page-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8, 12, 20, 0.76), rgba(8, 12, 20, 0.94)); }
.page-banner::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 130px; background: linear-gradient(180deg, transparent, var(--bg-dark)); }
.banner-content { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .88rem; color: rgba(255, 255, 255, 0.5); margin-bottom: 18px; }
.breadcrumb a { color: var(--primary-light); }
.breadcrumb i { font-size: .7rem; opacity: .7; }
.breadcrumb .current { color: rgba(255, 255, 255, 0.7); }
.category-badge { display: inline-block; padding: 7px 18px; background: rgba(212, 168, 83, 0.16); border: 1px solid rgba(212, 168, 83, 0.38); border-radius: 100px; color: var(--primary-light); font-size: .82rem; font-weight: 600; letter-spacing: 1.5px; margin-bottom: 16px; }
.banner-title { font-size: clamp(1.8rem, 4vw, 2.7rem); font-weight: 800; line-height: 1.3; margin: 0 0 18px; letter-spacing: 1px; color: #fff; max-width: 900px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; color: rgba(255, 255, 255, 0.55); font-size: .9rem; }
.article-meta i { margin-right: 6px; color: var(--primary); }
.article-meta .divider { opacity: .3; }
.article-section { padding: 70px 0 40px; position: relative; z-index: 3; }
.article-card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: clamp(26px, 4vw, 52px); position: relative; box-shadow: var(--shadow); }
.article-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: linear-gradient(180deg, var(--primary-light), transparent); border-radius: var(--radius) 0 0 var(--radius); }
.article-content { font-size: 1.03rem; line-height: 1.9; color: var(--text-body); word-break: break-word; }
.article-content p { margin: 0 0 22px; }
.article-content h1, .article-content h2, .article-content h3, .article-content h4 { color: var(--text-main); margin: 36px 0 16px; font-weight: 700; line-height: 1.4; letter-spacing: .5px; }
.article-content h2 { font-size: 1.5rem; padding-left: 16px; border-left: 3px solid var(--primary); }
.article-content h3 { font-size: 1.25rem; }
.article-content a { color: var(--primary-light); border-bottom: 1px solid rgba(212, 168, 83, .4); }
.article-content a:hover { border-bottom-color: var(--primary); }
.article-content img { border-radius: 12px; border: 1px solid var(--border-light); margin: 28px 0; box-shadow: var(--shadow-sm); }
.article-content blockquote { margin: 28px 0; padding: 20px 26px; background: rgba(212, 168, 83, 0.08); border-left: 3px solid var(--primary); border-radius: 0 10px 10px 0; color: var(--text-body); font-style: normal; }
.article-content ul, .article-content ol { margin: 0 0 22px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content li::marker { color: var(--primary); }
.article-content table { width: 100%; margin: 24px 0; border-collapse: collapse; }
.article-content th { background: rgba(212, 168, 83, .12); color: var(--primary-light); padding: 14px 16px; text-align: left; font-weight: 600; border: 1px solid var(--border-light); }
.article-content td { padding: 12px 16px; border: 1px solid var(--border-light); color: var(--text-body); }
.not-found { text-align: center; padding: 80px 40px !important; }
.not-found i { font-size: 3rem; color: var(--primary); margin-bottom: 20px; }
.not-found h2 { font-size: 1.6rem; margin-bottom: 12px; }
.not-found p { color: var(--text-muted); margin-bottom: 28px; }
.sidebar-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; margin-bottom: 20px; transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease; position: relative; overflow: hidden; }
.sidebar-card::after { content: ''; position: absolute; top: 0; right: 0; width: 60px; height: 60px; border-top: 2px solid rgba(212, 168, 83, .35); border-right: 2px solid rgba(212, 168, 83, .35); border-radius: 0 10px 0 0; opacity: 0; transition: opacity .3s ease; }
.sidebar-card:hover { border-color: rgba(212, 168, 83, .5); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.sidebar-card:hover::after { opacity: 1; }
.sidebar-icon { width: 46px; height: 46px; border-radius: 12px; background: rgba(212, 168, 83, 0.15); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1.2rem; margin-bottom: 16px; }
.sidebar-title { font-size: 1.08rem; font-weight: 700; color: var(--text-main); margin-bottom: 8px; letter-spacing: .5px; }
.sidebar-desc { font-size: .9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.sidebar-link { display: inline-flex; align-items: center; gap: 6px; font-size: .9rem; font-weight: 600; color: var(--primary-light); }
.sidebar-link i { transition: transform .3s ease; }
.sidebar-link:hover i { transform: translateX(4px); }
.sidebar-notice { background: rgba(59, 130, 246, 0.08); border: 1px solid rgba(59, 130, 246, 0.25); border-radius: var(--radius); padding: 20px 22px; margin-top: 24px; }
.sidebar-notice-title { display: flex; align-items: center; gap: 8px; font-weight: 700; color: #60a5fa; font-size: .95rem; margin-bottom: 10px; }
.sidebar-notice p { font-size: .88rem; color: var(--text-muted); line-height: 1.7; margin: 0; }
.related-section { padding: var(--spacing-section) 0; }
.section-header { text-align: center; margin-bottom: 44px; }
.section-subtitle { color: var(--primary); font-size: .88rem; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 10px; display: inline-flex; align-items: center; gap: 10px; }
.section-subtitle::before, .section-subtitle::after { content: ''; width: 28px; height: 1px; background: var(--primary); opacity: .5; }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: var(--text-main); margin: 0 0 14px; letter-spacing: 1px; }
.section-desc { color: var(--text-muted); font-size: 1rem; max-width: 640px; margin: 0 auto; }
.related-card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; height: 100%; display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(212, 168, 83, .45); }
.related-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.related-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-media img { transform: scale(1.05); }
.related-media::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8, 12, 20, 0.08), rgba(8, 12, 20, 0.5)); z-index: 1; }
.related-tag { position: absolute; top: 14px; left: 14px; z-index: 2; padding: 5px 14px; background: rgba(8, 12, 20, 0.75); border: 1px solid rgba(212, 168, 83, .4); backdrop-filter: blur(6px); color: var(--primary-light); font-size: .78rem; border-radius: 100px; letter-spacing: 1px; font-weight: 600; }
.related-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.related-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-main); margin: 0 0 10px; line-height: 1.4; }
.related-body p { font-size: .9rem; color: var(--text-muted); line-height: 1.7; margin: 0 0 18px; flex: 1; }
.related-btn { display: inline-flex; align-items: center; gap: 6px; font-size: .88rem; font-weight: 600; color: var(--primary-light); }
.related-btn i { transition: transform .3s ease; }
.related-btn:hover i { transform: translateX(4px); }
.faq-section { padding: var(--spacing-section) 0; background: var(--bg-deep); }
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; transition: border-color .3s ease, box-shadow .3s ease; }
.faq-item:hover { border-color: rgba(212, 168, 83, .4); box-shadow: var(--shadow-sm); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 22px 26px; background: none; border: none; font-size: 1.03rem; font-weight: 600; color: var(--text-main); text-align: left; gap: 16px; }
.faq-question .faq-num { color: var(--primary); font-family: 'SF Mono', Consolas, monospace; font-size: .9rem; margin-right: 12px; }
.faq-question .faq-icon { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: .8rem; transition: transform .3s ease, background .3s ease; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(212, 168, 83, .15); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer-inner { padding: 0 26px 22px; color: var(--text-muted); font-size: .95rem; line-height: 1.85; border-top: 1px solid transparent; }
.faq-item.open .faq-answer-inner { border-top-color: var(--border-light); padding-top: 16px; }
.cta-section { position: relative; padding: 90px 0; background-size: cover; background-position: center; text-align: center; z-index: 1; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(8, 12, 20, 0.9), rgba(8, 12, 20, 0.82)); z-index: -1; }
.cta-section::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 80px; background: linear-gradient(180deg, var(--bg-dark), transparent); z-index: -1; }
.cta-inner { position: relative; z-index: 2; max-width: 760px; margin: 0 auto; }
.cta-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 18px; background: rgba(212, 168, 83, .14); border: 1px solid rgba(212, 168, 83, .35); border-radius: 100px; color: var(--primary-light); font-size: .82rem; font-weight: 600; letter-spacing: 1.5px; margin-bottom: 20px; }
.cta-title { font-size: clamp(1.7rem, 3.6vw, 2.5rem); font-weight: 800; color: #fff; margin: 0 0 16px; line-height: 1.35; letter-spacing: 1px; }
.cta-desc { color: rgba(255, 255, 255, 0.7); font-size: 1.05rem; max-width: 580px; margin: 0 auto 34px; }
.cta-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.cta-note { margin-top: 26px; color: rgba(255, 255, 255, 0.45); font-size: .88rem; display: flex; align-items: center; justify-content: center; gap: 8px; }
.cta-note i { color: var(--primary); }
.site-footer { background: var(--bg-deep); border-top: 1px solid var(--border); }
.footer-top { display: grid; grid-template-columns: 1.7fr 1fr; gap: 48px; padding: 64px 0 40px; }
.footer-brand .footer-logo { font-size: 1.3rem; font-weight: 800; color: #fff; letter-spacing: 1px; display: inline-flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand .footer-logo i { color: var(--primary); }
.footer-brand p { color: var(--text-muted); font-size: .95rem; line-height: 1.8; max-width: 360px; margin: 0; }
.footer-col h4 { color: var(--text-main); font-size: 1rem; font-weight: 700; margin: 0 0 18px; letter-spacing: 1px; }
.footer-col a { display: block; color: var(--text-muted); font-size: .93rem; padding: 5px 0; transition: color .25s ease, padding-left .25s ease; }
.footer-col a:hover { color: var(--primary-light); padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 22px 0; text-align: center; color: rgba(255, 255, 255, 0.35); font-size: .85rem; line-height: 1.7; }
.footer-bottom p { margin: 4px 0; }
.back-top { position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px; border-radius: 50%; background: var(--bg-card); border: 1px solid var(--border); color: var(--primary); font-size: 1rem; display: flex; align-items: center; justify-content: center; z-index: 900; transition: all .3s ease; opacity: 0; visibility: hidden; box-shadow: var(--shadow-sm); }
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--primary); color: #0a0e17; transform: translateY(-3px); }
@media (max-width: 1024px) {
    .site-nav { gap: 18px; }
    .header-cta { padding: 10px 20px; font-size: .9rem; }
    .article-section { padding: 56px 0 32px; }
    .footer-top { gap: 32px; }
}
@media (max-width: 768px) {
    .site-nav { position: fixed; top: 74px; left: 0; right: 0; background: rgba(8, 12, 20, 0.98); flex-direction: column; align-items: flex-start; padding: 24px 28px; gap: 6px; border-bottom: 1px solid var(--border); transform: translateY(-120%); transition: transform .4s cubic-bezier(.4, 0, .2, 1); backdrop-filter: blur(16px); box-shadow: var(--shadow); z-index: 999; }
    .site-nav.nav-open { transform: translateY(0); }
    .site-nav a { display: block; width: 100%; padding: 14px 0; font-size: 1rem; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
    .site-nav a::after { display: none; }
    .site-nav a.active { color: var(--primary-light); }
    .header-cta { margin-left: auto; margin-right: 12px; padding: 9px 18px; font-size: .84rem; }
    .nav-toggle { display: flex; }
    .page-banner { padding: 60px 0 48px; }
    .banner-title { font-size: 1.65rem; }
    .article-card { padding: 28px 22px; }
    .article-section { padding: 44px 0 24px; }
    .related-section, .faq-section, .cta-section { padding: 60px 0; }
    .footer-top { grid-template-columns: 1fr; padding: 44px 0 30px; }
    .back-top { width: 38px; height: 38px; bottom: 20px; right: 20px; }
}
@media (max-width: 520px) {
    .grid-container { padding-left: 18px; padding-right: 18px; }
    .header-inner { min-height: 66px; }
    .site-nav { top: 66px; }
    .brand-name { font-size: 1.08rem; }
    .brand-icon { width: 34px; height: 34px; font-size: 1rem; border-radius: 8px; }
    .header-cta { padding: 8px 14px; font-size: .8rem; }
    .page-banner { padding: 46px 0 38px; }
    .breadcrumb { font-size: .8rem; }
    .banner-title { font-size: 1.4rem; }
    .article-meta { gap: 10px; font-size: .82rem; flex-wrap: wrap; }
    .article-content { font-size: .98rem; line-height: 1.85; }
    .article-content h2 { font-size: 1.25rem; }
    .article-content h3 { font-size: 1.12rem; }
    .article-card { padding: 22px 16px; }
    .banner-title { margin-bottom: 12px; }
    .faq-question { padding: 18px 18px; font-size: .96rem; }
    .faq-answer-inner { padding: 0 18px 18px; font-size: .9rem; }
    .cta-desc { font-size: .96rem; }
    .cta-buttons .btn { width: 100%; }
    .cta-note { flex-direction: column; gap: 4px; margin-top: 18px; }
    .footer-top { gap: 22px; padding: 36px 0 24px; }
    .sidebar-notice { display: none; }
}

/* roulang page: category3 */
:root {
      --primary: #1a5cff;
      --primary-dark: #0e3fbf;
      --primary-light: #e8efff;
      --accent: #ffb800;
      --accent-dark: #e09a00;
      --dark: #0d1220;
      --dark-2: #141b2e;
      --dark-3: #1e2740;
      --text: #1f2937;
      --text-weak: #6b7280;
      --border: #e5e7eb;
      --bg: #f5f7fb;
      --white: #ffffff;
      --radius: 18px;
      --radius-sm: 12px;
      --shadow: 0 10px 40px rgba(17, 24, 39, 0.08);
      --shadow-lg: 0 20px 60px rgba(17, 24, 39, 0.14);
      --transition: all 0.25s ease;
      --space-section: clamp(3.5rem, 7vw, 6rem);
    }

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

    html { scroll-behavior: smooth; }

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

    a { text-decoration: none; color: inherit; transition: var(--transition); }
    img { max-width: 100%; display: block; }
    ul, ol { list-style: none; }
    button, input, textarea { font-family: inherit; outline: none; }
    i { font-style: normal; }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      border: 2px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    .btn-primary:hover, .btn-primary:focus {
      background: var(--primary-dark);
      border-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(26, 92, 255, 0.3);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-outline:hover, .btn-outline:focus {
      background: var(--primary-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(26, 92, 255, 0.12);
    }

    .btn-light {
      background: #fff;
      color: var(--dark);
      border-color: #fff;
    }

    .btn-light:hover, .btn-light:focus {
      background: var(--primary-light);
      border-color: var(--primary-light);
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
    }

    .btn-accent {
      background: var(--accent);
      color: #1a1a1a;
      border-color: var(--accent);
    }

    .btn-accent:hover, .btn-accent:focus {
      background: var(--accent-dark);
      border-color: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(255, 184, 0, 0.3);
    }

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

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(26, 92, 255, 0.08);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      padding: 6px 16px;
      border-radius: 999px;
      text-transform: uppercase;
      margin-bottom: 16px;
      border: 1px solid rgba(26, 92, 255, 0.15);
    }

    .section-title {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 800;
      color: var(--dark);
      line-height: 1.25;
      letter-spacing: -0.5px;
    }

    .section-sub {
      margin-top: 16px;
      color: var(--text-weak);
      font-size: 16px;
    }

    /* ========== Header ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(229, 231, 235, 0.8);
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
    }

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

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand-icon {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), #4c82ff);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      box-shadow: 0 8px 20px rgba(26, 92, 255, 0.25);
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark);
      letter-spacing: -0.3px;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .site-nav a {
      padding: 8px 18px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      transition: var(--transition);
      position: relative;
    }

    .site-nav a:hover {
      color: var(--primary);
      background: rgba(26, 92, 255, 0.06);
    }

    .site-nav a.active {
      color: var(--primary);
      background: rgba(26, 92, 255, 0.1);
      font-weight: 600;
    }

    .header-cta {
      padding: 10px 22px;
      font-size: 14px;
      flex-shrink: 0;
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
      border-radius: 8px;
    }

    .nav-toggle span {
      width: 22px;
      height: 2px;
      background: var(--dark);
      border-radius: 4px;
      transition: var(--transition);
    }

    .nav-toggle:hover span { background: var(--primary); }

    .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ========== Banner / Hero ========== */
    .banner {
      position: relative;
      background: linear-gradient(135deg, #0b1120 0%, #16224a 60%, #1a5cff 100%);
      padding: 120px 0 100px;
      overflow: hidden;
      isolation: isolate;
    }

    .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;
    }

    .banner::after {
      content: '';
      position: absolute;
      top: -80px;
      right: -80px;
      width: 380px;
      height: 380px;
      background: radial-gradient(circle, rgba(26, 92, 255, 0.35), transparent 65%);
      border-radius: 50%;
      z-index: -1;
    }

    .banner-content {
      max-width: 780px;
      color: #fff;
    }

    .banner-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(8px);
      padding: 8px 20px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      margin-bottom: 24px;
    }

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

    .banner h1 {
      font-size: clamp(30px, 5vw, 52px);
      font-weight: 800;
      line-height: 1.2;
      color: #fff;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

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

    .banner p {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.85);
      max-width: 620px;
      line-height: 1.8;
      margin-bottom: 32px;
    }

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

    .banner-stats {
      display: flex;
      gap: 40px;
      margin-top: 56px;
      padding-top: 36px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
    }

    .banner-stat h3 {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
    }

    .banner-stat h3 span {
      font-size: 18px;
      margin-left: 2px;
      color: rgba(255, 255, 255, 0.6);
    }

    .banner-stat p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
      margin-top: 4px;
      margin-bottom: 0;
    }

    /* ========== Breadcrumb ========== */
    .breadcrumb-wrap {
      padding: 18px 0;
      background: #fff;
      border-bottom: 1px solid var(--border);
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-weak);
      flex-wrap: wrap;
    }

    .breadcrumb a { color: var(--primary); }
    .breadcrumb a:hover { text-decoration: underline; }
    .breadcrumb .sep { color: #d1d5db; }
    .breadcrumb .current { color: var(--text); font-weight: 500; }

    /* ========== Safety Core ========== */
    .safety-core {
      background: #fff;
    }

    .safety-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .safety-card {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 36px 28px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .safety-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary);
      opacity: 0;
      transition: var(--transition);
    }

    .safety-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow);
      border-color: rgba(26, 92, 255, 0.2);
    }

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

    .safety-card .icon-wrap {
      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;
    }

    .safety-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .safety-card p {
      font-size: 15px;
      color: var(--text-weak);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ========== Risk Section ========== */
    .risk-section {
      background: var(--dark);
      background-image: linear-gradient(135deg, rgba(13, 18, 32, 0.97), rgba(20, 27, 46, 0.97)), url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
    }

    .risk-section .section-title { color: #fff; }

    .risk-section .section-sub { color: rgba(255, 255, 255, 0.65); }

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

    .risk-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border-radius: var(--radius);
      padding: 28px 26px;
      display: flex;
      gap: 20px;
      transition: var(--transition);
      align-items: flex-start;
    }

    .risk-card:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-4px);
    }

    .risk-icon {
      width: 48px;
      height: 48px;
      flex-shrink: 0;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      background: rgba(255, 184, 0, 0.15);
      color: var(--accent);
    }

    .risk-card h3 {
      color: #fff;
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .risk-card p {
      color: rgba(255, 255, 255, 0.7);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ========== Process Section ========== */
    .process-section { background: var(--bg); }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .process-step {
      position: relative;
      text-align: center;
      padding: 36px 24px;
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      transition: var(--transition);
    }

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

    .process-num {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
    }

    .process-step h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }

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

    .process-step::after {
      content: '→';
      position: absolute;
      top: 50%;
      right: -20px;
      transform: translateY(-50%);
      font-size: 24px;
      color: var(--primary);
      font-weight: 300;
      z-index: 2;
    }

    .process-step:last-child::after { display: none; }

    /* ========== Tips / Feature Section ========== */
    .tips-section { background: #fff; }

    .tips-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .tips-image {
      border-radius: 24px;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .tips-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 420px;
    }

    .tips-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(13, 18, 32, 0.3), transparent);
    }

    .tips-content h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark);
      line-height: 1.3;
      margin-bottom: 20px;
    }

    .tips-content p {
      color: var(--text-weak);
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .tips-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .tips-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      background: var(--bg);
      border-radius: var(--radius-sm);
      padding: 16px 18px;
      transition: var(--transition);
    }

    .tips-list li:hover {
      background: var(--primary-light);
      transform: translateX(4px);
    }

    .tips-list i {
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      margin-top: 2px;
    }

    .tips-list span {
      font-size: 15px;
      font-weight: 500;
      color: var(--dark);
    }

    /* ========== CTA Section ========== */
    .cta-section {
      position: relative;
      background: linear-gradient(135deg, #0e3fbf, #1a5cff);
      overflow: hidden;
      isolation: isolate;
      text-align: center;
      padding: 80px 0;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      z-index: -1;
    }

    .cta-section h2 {
      color: #fff;
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 800;
      margin-bottom: 16px;
    }

    .cta-section p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 17px;
      max-width: 640px;
      margin: 0 auto 32px;
    }

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

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

    .faq-list {
      max-width: 840px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

    .faq-item:hover {
      border-color: rgba(26, 92, 255, 0.25);
      box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
    }

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

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

    .faq-item details summary::after {
      content: '+';
      font-size: 24px;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.3s ease;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

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

    .faq-item details p {
      padding: 0 24px 20px;
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.8;
      margin: 0;
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }

    /* ========== Footer ========== */
    .site-footer {
      background: #0d1220;
      color: rgba(255, 255, 255, 0.7);
      padding: 64px 0 28px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      margin-bottom: 40px;
    }

    .footer-logo {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
      display: block;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      max-width: 360px;
      color: rgba(255, 255, 255, 0.6);
    }

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

    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
    }

    .footer-col a:hover {
      color: #fff;
      transform: translateX(2px);
    }

    .footer-bottom {
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-bottom p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
      margin: 0;
    }

    /* ========== Reveal Animations ========== */
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ========== Responsive ========== */
    @media screen and (max-width: 1024px) {
      .safety-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
      .process-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
      .process-step::after { display: none; }
      .tips-layout { gap: 32px; }
    }

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

      .site-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        gap: 6px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
        transform: translateY(-140%);
        transition: transform 0.35s ease;
        z-index: 99;
      }

      .site-nav.open {
        transform: translateY(0);
      }

      .site-nav a {
        width: 100%;
        text-align: center;
        padding: 12px 16px;
        font-size: 16px;
      }

      .header-cta { display: none; }
      .nav-toggle { display: flex; }

      .banner { padding: 80px 0 64px; }
      .banner-stats { flex-wrap: wrap; gap: 24px; flex-direction: column; margin-top: 40px; padding-top: 28px; }
      .banner-stat { display: flex; align-items: baseline; gap: 12px; }

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

      .safety-grid { grid-template-columns: 1fr; }
      .risk-grid { grid-template-columns: 1fr; }
      .tips-layout { grid-template-columns: 1fr; }
      .tips-image img { min-height: 280px; }

      .footer-top { grid-template-columns: 1fr; gap: 32px; }
      .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }

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

    @media screen and (max-width: 520px) {
      .container { padding: 0 20px; }

      .brand-name { font-size: 17px; }

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

      .btn { width: 100%; }

      .banner h1 { font-size: 28px; }
      .banner p { font-size: 15px; }

      .safety-card { padding: 28px 20px; }
    }

    @media (prefers-reduced-motion: reduce) {
      * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
      .reveal { opacity: 1; transform: none; }
    }

/* roulang page: category2 */
:root {
      --primary: #d4a437;
      --primary-light: #e8c766;
      --primary-dark: #b8892a;
      --bg-dark: #080c18;
      --bg-deep: #0d1428;
      --bg-card: #111a30;
      --bg-card-2: #17213b;
      --text: #f2f4fa;
      --text-weak: #9aa4bd;
      --border: rgba(212, 164, 55, .25);
      --radius: 20px;
      --radius-sm: 12px;
      --shadow: 0 12px 40px rgba(0, 0, 0, .35);
      --transition: .25s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg-dark);
      color: var(--text);
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      display: block;
      border: 0;
    }

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

    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
      border-radius: 6px;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: 40px;
      font-weight: 600;
      font-size: .95rem;
      border: 1px solid transparent;
      transition: all var(--transition);
      line-height: 1.4;
    }

    .btn-primary {
      background: linear-gradient(135deg, #f0d37a, #c9982e);
      color: #111827;
      box-shadow: 0 6px 20px rgba(212, 164, 55, .28);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(212, 164, 55, .42);
      color: #111827;
    }

    .btn-outline {
      border-color: rgba(212, 164, 55, .45);
      color: var(--text);
      background: rgba(255, 255, 255, .03);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
      background: rgba(212, 164, 55, .08);
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(8, 12, 24, .86);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(212, 164, 55, .18);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.22rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: .5px;
      white-space: nowrap;
    }

    .brand-icon {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #f7df9e, #c99a2f);
      color: #0d1428;
      border-radius: 12px;
      font-size: 1.1rem;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .18);
      flex-shrink: 0;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 26px;
    }

    .site-nav a {
      position: relative;
      font-size: .95rem;
      font-weight: 500;
      color: var(--text-weak);
      padding: 8px 2px;
    }

    .site-nav a:hover {
      color: #fff;
    }

    .site-nav a.active {
      color: var(--primary);
    }

    .site-nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: transparent;
      padding: 0;
    }

    .nav-toggle span {
      width: 20px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transition: transform var(--transition), opacity var(--transition);
    }

    .nav-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.open span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

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

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

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: rgba(212, 164, 55, .12);
      color: var(--primary);
      border: 1px solid rgba(212, 164, 55, .35);
      border-radius: 40px;
      font-size: .82rem;
      font-weight: 600;
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      margin: 16px 0 12px;
      color: #fff;
      line-height: 1.25;
    }

    .section-sub {
      font-size: 1.05rem;
      color: var(--text-weak);
      max-width: 680px;
      margin-bottom: 0;
    }

    .section-header {
      margin-bottom: 40px;
    }

    /* ===== Page Hero ===== */
    .page-hero {
      position: relative;
      background: #0a0f1e url("/assets/images/backpic/back-2.png") center/cover no-repeat;
      padding: 96px 0;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(6, 10, 20, .94), rgba(10, 15, 30, .74));
    }

    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 740px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 16px;
      background: rgba(212, 164, 55, .14);
      border: 1px solid rgba(212, 164, 55, .4);
      border-radius: 40px;
      color: var(--primary);
      font-size: .85rem;
      font-weight: 600;
      letter-spacing: .5px;
    }

    .hero-badge i {
      font-size: .8rem;
    }

    .hero-title {
      font-size: 2.7rem;
      font-weight: 900;
      color: #fff;
      margin: 20px 0 14px;
      line-height: 1.2;
    }

    .hero-title span {
      color: var(--primary);
    }

    .hero-desc {
      font-size: 1.08rem;
      color: rgba(255, 255, 255, .74);
      margin-bottom: 28px;
      line-height: 1.8;
    }

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

    /* ===== Version Cards ===== */
    .grid-padding-x > .cell {
      padding-left: 12px;
      padding-right: 12px;
    }

    .version-col {
      display: flex;
      margin-bottom: 24px;
    }

    .version-card {
      display: flex;
      flex-direction: column;
      width: 100%;
      background: rgba(17, 26, 48, .82);
      border: 1px solid rgba(255, 255, 255, .07);
      border-radius: var(--radius);
      padding: 32px 28px;
      position: relative;
      overflow: hidden;
      transition: all var(--transition);
    }

    .version-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), transparent);
      opacity: .55;
    }

    .version-card:hover {
      transform: translateY(-6px);
      border-color: rgba(212, 164, 55, .45);
      box-shadow: 0 18px 44px rgba(0, 0, 0, .42);
    }

    .version-icon {
      width: 60px;
      height: 60px;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.55rem;
      color: #0d1428;
      margin-bottom: 18px;
    }

    .version-name {
      font-size: 1.3rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .version-desc {
      color: var(--text-weak);
      font-size: .95rem;
      margin-bottom: 18px;
      line-height: 1.75;
    }

    .version-tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 20px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 12px;
      border-radius: 8px;
      background: rgba(255, 255, 255, .06);
      color: var(--text-weak);
      font-size: .8rem;
      border: 1px solid rgba(255, 255, 255, .08);
    }

    .tag-gold {
      color: var(--primary);
      border-color: rgba(212, 164, 55, .4);
      background: rgba(212, 164, 55, .08);
    }

    .version-card .btn {
      margin-top: auto;
      align-self: flex-start;
    }

    /* ===== Steps ===== */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, .07);
      border-radius: 16px;
      padding: 30px 22px;
      text-align: center;
      transition: all var(--transition);
      position: relative;
      overflow: hidden;
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: rgba(212, 164, 55, .4);
    }

    .step-num {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f0d37a, #c9982e);
      color: #111827;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: .9rem;
      color: var(--text-weak);
      line-height: 1.7;
    }

    /* ===== Update List ===== */
    .update-card {
      display: flex;
      gap: 22px;
      background: rgba(17, 26, 48, .82);
      border: 1px solid rgba(255, 255, 255, .07);
      border-radius: var(--radius);
      padding: 18px;
      margin-bottom: 20px;
      transition: all var(--transition);
      align-items: center;
    }

    .update-card:hover {
      border-color: rgba(212, 164, 55, .38);
      transform: translateX(5px);
    }

    .update-thumb {
      width: 220px;
      height: 132px;
      border-radius: 14px;
      overflow: hidden;
      flex-shrink: 0;
      background: #0d1428;
    }

    .update-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .update-body {
      flex: 1;
    }

    .update-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin: 0 0 8px;
    }

    .update-body p {
      color: var(--text-weak);
      font-size: .93rem;
      margin-bottom: 10px;
      line-height: 1.7;
    }

    .update-meta {
      display: flex;
      gap: 14px;
      align-items: center;
      font-size: .82rem;
      color: var(--text-weak);
      flex-wrap: wrap;
    }

    .update-meta i {
      color: var(--primary);
      margin-right: 4px;
    }

    /* ===== HUD Stats ===== */
    .hud-panel {
      background: linear-gradient(145deg, rgba(13, 20, 40, .9), rgba(8, 12, 24, .95));
      border: 1px solid rgba(212, 164, 55, .24);
      border-radius: 26px;
      padding: 46px 34px;
      position: relative;
      overflow: hidden;
    }

    .hud-panel::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 18% 18%, rgba(212, 164, 55, .09), transparent 60%);
      pointer-events: none;
    }

    .hud-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      margin-bottom: 32px;
      flex-wrap: wrap;
    }

    .hud-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: #fff;
      margin: 0;
      position: relative;
      padding-left: 16px;
    }

    .hud-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      bottom: 6px;
      width: 3px;
      border-radius: 4px;
      background: var(--primary);
    }

    .hud-status {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: rgba(212, 164, 55, .1);
      border: 1px solid rgba(212, 164, 55, .35);
      border-radius: 40px;
      color: var(--primary);
      font-size: .85rem;
      font-weight: 600;
    }

    .hud-status i {
      font-size: .7rem;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: .55; transform: scale(.85); }
    }

    .stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }

    .stat-item {
      text-align: center;
      padding: 28px 16px;
      background: rgba(255, 255, 255, .03);
      border: 1px solid rgba(255, 255, 255, .07);
      border-radius: 18px;
      transition: all var(--transition);
    }

    .stat-item:hover {
      border-color: rgba(212, 164, 55, .35);
      background: rgba(212, 164, 55, .05);
    }

    .stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.2;
    }

    .stat-label {
      color: var(--text-weak);
      font-size: .9rem;
      margin-top: 8px;
    }

    /* ===== Safety ===== */
    .safety-wrap {
      display: flex;
      gap: 48px;
      align-items: center;
    }

    .safety-content {
      flex: 1;
    }

    .safety-content .section-sub {
      margin-bottom: 24px;
    }

    .safety-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .safety-list li {
      display: flex;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255, 255, 255, .07);
      color: var(--text-weak);
      font-size: .95rem;
      line-height: 1.7;
    }

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

    .safety-list li i {
      color: var(--primary);
      margin-top: 5px;
      flex-shrink: 0;
    }

    .safety-list strong {
      color: #fff;
      font-weight: 600;
    }

    .safety-visual {
      flex: 1;
      min-width: 0;
    }

    .safety-visual img {
      border-radius: 22px;
      width: 100%;
      height: auto;
      border: 1px solid rgba(255, 255, 255, .08);
      box-shadow: var(--shadow);
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 840px;
    }

    .faq-item {
      background: rgba(17, 26, 48, .78);
      border: 1px solid rgba(255, 255, 255, .07);
      border-radius: 16px;
      margin-bottom: 14px;
      overflow: hidden;
      transition: all var(--transition);
    }

    .faq-item[open] {
      border-color: rgba(212, 164, 55, .38);
      background: var(--bg-card);
    }

    .faq-item summary {
      padding: 18px 22px;
      font-weight: 600;
      color: #fff;
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: .98rem;
    }

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

    .faq-item summary::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--primary);
      transition: transform var(--transition);
      flex-shrink: 0;
      line-height: 1;
    }

    .faq-item[open] summary::after {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 22px 18px;
      color: var(--text-weak);
      font-size: .95rem;
      line-height: 1.8;
    }

    /* ===== CTA ===== */
    .cta-box {
      background: linear-gradient(135deg, #16223f, #0d1428);
      border: 1px solid rgba(212, 164, 55, .35);
      border-radius: 28px;
      padding: 60px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-box::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url("/assets/images/backpic/back-3.png") center/cover no-repeat;
      opacity: .16;
    }

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

    .cta-title {
      font-size: 1.8rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }

    .cta-desc {
      color: var(--text-weak);
      margin-bottom: 28px;
      max-width: 560px;
      margin-left: auto;
      margin-right: auto;
    }

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

    /* ===== Footer ===== */
    .site-footer {
      background: #070b15;
      border-top: 1px solid rgba(212, 164, 55, .15);
      padding: 56px 0 32px;
    }

    .footer-top {
      display: flex;
      justify-content: space-between;
      gap: 40px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }

    .footer-brand {
      max-width: 350px;
    }

    .footer-logo {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary);
    }

    .footer-brand p {
      color: var(--text-weak);
      font-size: .9rem;
      margin-top: 14px;
      line-height: 1.75;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 14px;
      font-weight: 700;
    }

    .footer-col a {
      display: block;
      color: var(--text-weak);
      font-size: .9rem;
      padding: 5px 0;
    }

    .footer-col a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--text-weak);
      font-size: .85rem;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .section {
        padding: 60px 0;
      }

      .hero-title {
        font-size: 2.2rem;
      }

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

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

      .safety-wrap {
        flex-direction: column;
        gap: 32px;
      }
    }

    @media (max-width: 820px) {
      .header-cta {
        display: none;
      }

      .nav-toggle {
        display: flex;
      }

      .site-nav {
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: rgba(8, 12, 24, .98);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px;
        gap: 12px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform .3s ease;
        pointer-events: none;
      }

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

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

      .site-nav a.active::after {
        display: none;
      }

      .site-nav a.active {
        background: rgba(212, 164, 55, .1);
        border-radius: 8px;
        padding-left: 12px;
        padding-right: 12px;
      }

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

      .hero-title {
        font-size: 1.9rem;
      }

      .section-title {
        font-size: 1.55rem;
      }

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

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

    @media (max-width: 640px) {
      .container {
        padding: 0 18px;
      }

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

      .update-card {
        flex-direction: column;
        align-items: flex-start;
      }

      .update-thumb {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
      }

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

    @media (max-width: 520px) {
      .section {
        padding: 48px 0;
      }

      .hero-title {
        font-size: 1.65rem;
      }

      .hero-desc {
        font-size: .95rem;
      }

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

      .brand-name {
        font-size: 1.05rem;
      }

      .brand {
        gap: 8px;
      }

      .btn {
        padding: 11px 18px;
        font-size: .9rem;
      }
    }