/* roulang page: index */
:root {
  --primary: #0B1F3A;
  --primary-light: #16345A;
  --primary-dark: #060F1F;
  --accent: #FFB800;
  --accent-hover: #FFC940;
  --accent-dark: #E0A200;
  --bg: #F6F8FB;
  --bg-alt: #EEF2F7;
  --white: #FFFFFF;
  --text: #1A1A2E;
  --text-light: #5A6B7F;
  --text-lighter: #8A97A8;
  --border: #E5EAF0;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(11,31,58,0.06);
  --shadow-md: 0 10px 32px rgba(11,31,58,0.09);
  --shadow-lg: 0 24px 60px rgba(11,31,58,0.14);
  --container-w: 1200px;
  --space-section: 96px;
  --space-section-md: 72px;
  --space-section-sm: 56px;
  --font: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Segoe UI', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

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

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

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

.section-head .section-eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-dark);
  background: rgba(255, 184, 0, 0.12);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 38px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
}

.section-head p {
  font-size: 17px;
  color: var(--text-light);
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  padding: 14px 30px;
  border-radius: 100px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 184, 0, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.7);
}

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

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

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

.btn-block {
  width: 100%;
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
  background: rgba(11, 31, 58, 0.07);
  color: var(--primary-light);
  transition: background 0.2s ease, color 0.2s ease;
}

.badge-accent {
  background: var(--accent);
  color: var(--primary-dark);
}

.badge-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: var(--white);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(11, 31, 58, 0.04);
}

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

.brand-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  line-height: 1.3;
}

.brand-logo span {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--accent-dark);
  text-transform: uppercase;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 100%;
  position: relative;
  z-index: 2;
}

.nav-left {
  margin-right: auto;
}

.nav-right {
  margin-left: auto;
}

.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-light);
  padding: 10px 22px;
  border-radius: 100px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(11, 31, 58, 0.05);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(255, 184, 0, 0.14);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: var(--bg-alt);
  margin-left: auto;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
  transition: transform 0.3s ease, opacity 0.3s 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);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 20px 40px rgba(11, 31, 58, 0.1);
  padding: 20px 24px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 10px;
}

.mobile-menu a {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  padding: 14px 20px;
  border-radius: 12px;
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-menu a:hover {
  background: rgba(255, 184, 0, 0.16);
  color: var(--primary);
}

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

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

  .header-inner {
    justify-content: flex-start;
    height: 66px;
  }

  .brand-logo {
    position: static;
    transform: none;
    font-size: 19px;
    margin-right: auto;
  }

  .brand-logo span {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .mobile-menu {
    top: 66px;
  }
}

/* Hero */
.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(6, 15, 31, 0.88) 0%, rgba(11, 31, 58, 0.72) 60%, rgba(22, 52, 90, 0.6) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height: 640px;
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: 80px;
  padding-bottom: 100px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 184, 0, 0.16);
  color: var(--accent);
  border: 1px solid rgba(255, 184, 0, 0.35);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.hero-tag i {
  font-size: 12px;
}

.hero h1 {
  font-size: 58px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 1px;
  margin-bottom: 20px;
  max-width: 700px;
}

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

.hero-desc {
  font-size: 18px;
  line-height: 1.9;
  max-width: 600px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-stat h3 {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.hero-stat h3 span {
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 2px;
}

.hero-stat p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 4px;
}

@media (max-width: 1024px) {
  .hero {
    min-height: 560px;
  }

  .hero h1 {
    font-size: 44px;
  }
}

@media (max-width: 768px) {
  .hero-inner {
    padding-top: 60px;
    padding-bottom: 70px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-stats {
    gap: 24px;
  }

  .hero-stat h3 {
    font-size: 26px;
  }
}

@media (max-width: 520px) {
  .hero h1 {
    font-size: 30px;
  }

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

  .hero-stats {
    gap: 18px;
    flex-direction: column;
  }
}

/* Stats Bar */
.stats-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 44px 0;
}

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

.stat-item {
  text-align: center;
  padding: 20px 16px;
  border-radius: var(--radius-md);
  background: var(--bg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.stat-value {
  font-size: 42px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-value em {
  font-style: normal;
  color: var(--accent-dark);
  font-size: 24px;
  margin-left: 2px;
}

.stat-name {
  font-size: 15px;
  color: var(--text-light);
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-value {
    font-size: 32px;
  }
}

@media (max-width: 520px) {
  .stat-value {
    font-size: 28px;
  }
}

/* Sports Grid */
.sports-grid-section {
  background: var(--bg);
}

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

.sport-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  background: var(--white);
  border: 1px solid var(--border);
}

.sport-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.sport-card-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

.sport-card:hover .sport-card-image img {
  transform: scale(1.06);
}

.sport-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 31, 58, 0.5), transparent 60%);
}

.sport-card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
}

.sport-card-body {
  padding: 24px;
}

.sport-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.sport-card-body p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 18px;
}

.sport-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-dark);
  transition: gap 0.2s ease, color 0.2s ease;
}

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

@media (max-width: 968px) {
  .sports-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

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

  .sport-card-image {
    height: 180px;
  }
}

/* Features */
.features-section {
  background: var(--primary);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.features-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 184, 0, 0.18), transparent 70%);
  border-radius: 50%;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}

.feature-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: background 0.3s ease, transform 0.3s ease;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-6px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(255, 184, 0, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 22px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* News Section */
.news-section {
  background: var(--bg);
}

.news-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: start;
}

.news-featured-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

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

.news-featured-image {
  position: relative;
  height: 320px;
  overflow: hidden;
}

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

.news-featured-card:hover .news-featured-image img {
  transform: scale(1.05);
}

.news-featured-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 31, 58, 0.6), transparent 50%);
}

.news-featured-meta {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  z-index: 2;
}

.news-featured-meta h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
  margin-top: 10px;
}

.news-featured-body {
  padding: 24px;
}

.news-featured-body p {
  font-size: 15px;
  color: var(--text-light);
  margin-bottom: 18px;
}

.news-featured-body .news-date {
  font-size: 13px;
  color: var(--text-lighter);
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news-list-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  border: 1px solid var(--border);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.news-list-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.news-item-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.news-item-head time {
  font-size: 13px;
  color: var(--text-lighter);
}

.news-list-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.5;
  transition: color 0.2s ease;
}

.news-list-item:hover h3 {
  color: var(--accent-dark);
}

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

.news-empty {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 60px;
  text-align: center;
  color: var(--text-lighter);
  font-size: 16px;
}

@media (max-width: 968px) {
  .news-layout {
    grid-template-columns: 1fr;
  }

  .news-featured-image {
    height: 240px;
  }
}

@media (max-width: 520px) {
  .news-featured-image {
    height: 200px;
  }

  .news-featured-meta h3 {
    font-size: 18px;
  }
}

/* Timeline */
.timeline-section {
  background: var(--bg-alt);
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}

.timeline-step {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.timeline-step::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -28px;
  width: 28px;
  height: 2px;
  background: var(--accent);
  opacity: 0.5;
}

.timeline-step:last-child::before {
  display: none;
}

.timeline-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 18px;
}

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

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

@media (max-width: 968px) {
  .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-step::before {
    display: none;
  }
}

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

/* Ranking */
.ranking-section {
  background: var(--white);
}

.ranking-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
}

.ranking-table {
  width: 100%;
  border-collapse: collapse;
}

.ranking-table th {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-lighter);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: left;
  padding: 14px 12px;
  border-bottom: 2px solid var(--border);
}

.ranking-table td {
  padding: 16px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.ranking-table tr:last-child td {
  border-bottom: none;
}

.ranking-table tr {
  transition: background 0.2s ease;
}

.ranking-table tbody tr:hover {
  background: rgba(255, 184, 0, 0.06);
}

.rank-medal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 14px;
  background: var(--primary);
  color: var(--white);
}

.rank-medal.gold {
  background: var(--accent);
  color: var(--primary-dark);
}

.rank-medal.silver {
  background: #C0C8D4;
  color: var(--primary-dark);
}

.rank-medal.bronze {
  background: #B87333;
  color: var(--white);
}

.rank-team {
  font-weight: 600;
  color: var(--primary);
}

.rank-score {
  font-weight: 700;
  color: var(--accent-dark);
}

@media (max-width: 768px) {
  .ranking-card {
    padding: 20px;
    overflow-x: auto;
  }

  .ranking-table {
    min-width: 560px;
  }
}

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

.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 22px 26px;
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color 0.2s ease;
}

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

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-light);
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: var(--primary-dark);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 26px;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 26px 24px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  padding-top: 2px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

@media (max-width: 520px) {
  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }

  .faq-answer p {
    font-size: 14px;
  }
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, rgba(6, 15, 31, 0.9) 0%, rgba(11, 31, 58, 0.82) 50%, rgba(22, 52, 90, 0.8) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: var(--white);
  padding: 110px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.25;
}

.cta-section p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

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

@media (max-width: 768px) {
  .cta-section {
    padding: 80px 0;
  }

  .cta-section h2 {
    font-size: 30px;
  }

  .cta-section p {
    font-size: 16px;
  }
}

@media (max-width: 520px) {
  .cta-buttons .btn {
    width: 100%;
  }
}

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 72px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

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

.footer-contact p {
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}

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

@media (max-width: 968px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer {
    padding-top: 48px;
  }
}

/* roulang page: article */
:root {
  --primary: #0b3a6f;
  --primary-light: #1b5a9e;
  --primary-dark: #07294d;
  --accent: #e8a320;
  --accent-light: #f4bd4b;
  --accent-dark: #c7890e;
  --bg-body: #f4f6fb;
  --bg-white: #ffffff;
  --bg-dark: #0c1b2a;
  --bg-light: #eef1f7;
  --text-main: #1a2535;
  --text-muted: #5c6b80;
  --text-light: #8b99ad;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(9, 30, 60, 0.06);
  --shadow-md: 0 8px 30px rgba(9, 30, 60, 0.09);
  --shadow-lg: 0 18px 50px rgba(9, 30, 60, 0.13);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

input {
  font-family: inherit;
}

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.nav-left,
.nav-right {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-left {
  justify-content: flex-end;
}

.nav-right {
  justify-content: flex-start;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
}

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

.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(11, 58, 111, 0.25);
}

.logo-center {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
  white-space: nowrap;
  transition: var(--transition);
}

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

.logo-center span {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  padding: 8px;
  border-radius: var(--radius-sm);
}

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

/* ===== Buttons ===== */
.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: 1.2;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 20px rgba(11, 58, 111, 0.25);
}

.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(11, 58, 111, 0.3);
}

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

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

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(232, 163, 32, 0.3);
}

.btn-accent:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== Main ===== */
.main-wrap {
  min-height: 60vh;
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  padding: 88px 0 72px;
  color: #fff;
  overflow: hidden;
}

.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  pointer-events: none;
}

.article-hero::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(232, 163, 32, 0.18);
  filter: blur(60px);
  pointer-events: none;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 22px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
}

.breadcrumb a:hover {
  color: var(--accent-light);
}

.breadcrumb .sep {
  opacity: 0.5;
}

.breadcrumb .current {
  color: var(--accent-light);
}

.article-hero .badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 5px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
}

.article-hero h1 {
  font-size: 36px;
  line-height: 1.35;
  font-weight: 800;
  max-width: 860px;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta .meta-item svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.article-hero .article-summary {
  margin-top: 26px;
  padding: 18px 22px;
  background: rgba(255, 255, 255, 0.08);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  max-width: 860px;
}

/* ===== Article Cover ===== */
.article-cover {
  margin: -40px auto 0;
  max-width: 920px;
  padding: 0 24px;
  position: relative;
  z-index: 3;
}

.article-cover img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  aspect-ratio: 16 / 7;
}

/* ===== Article Body ===== */
.article-body-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 24px 20px;
}

.article-content {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin: 40px 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bg-light);
  line-height: 1.4;
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--text-main);
  margin: 30px 0 14px;
  line-height: 1.4;
}

.article-content p {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.9;
  color: #31405a;
}

.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding-left: 28px;
}

.article-content li {
  margin-bottom: 10px;
  line-height: 1.8;
}

.article-content ul li::marker {
  color: var(--accent);
}

.article-content blockquote {
  margin: 24px 0;
  padding: 18px 24px;
  background: var(--bg-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-muted);
}

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

.article-content img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  margin: 24px 0;
  width: 100%;
  object-fit: cover;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content a:hover {
  color: var(--accent);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}

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

/* ===== Tags & Share ===== */
.article-bottom {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px 20px;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.article-tags .tag-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 4px;
}

.tag-item {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}

.tag-item:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 0;
}

.article-share .share-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-white);
  color: var(--text-main);
  transition: var(--transition);
}

.share-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== Recommend Section ===== */
.recommend-section {
  padding: 60px 0;
  background: var(--bg-white);
  border-top: 1px solid var(--border);
}

.section-header {
  text-align: center;
  margin-bottom: 44px;
}

.section-header .section-tag {
  display: inline-block;
  background: rgba(232, 163, 32, 0.12);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 999px;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

.section-header p {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 16px;
}

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

.recommend-card {
  background: var(--bg-body);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.recommend-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

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

.recommend-card .card-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.recommend-card .card-badge {
  display: inline-block;
  align-self: flex-start;
  background: rgba(11, 58, 111, 0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.recommend-card h3 {
  font-size: 16px;
  line-height: 1.55;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
  transition: var(--transition);
}

.recommend-card:hover h3 {
  color: var(--primary);
}

.recommend-card .card-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ===== FAQ Section ===== */
.faq-section {
  padding: 70px 0;
  background: var(--bg-light);
}

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

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

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(11, 58, 111, 0.2);
}

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

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

.faq-item summary .faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(11, 58, 111, 0.08);
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item[open] summary .faq-icon {
  background: var(--accent);
  color: #fff;
  transform: rotate(45deg);
}

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

/* ===== CTA Section ===== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  pointer-events: none;
}

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

.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-section p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin: 0 auto 34px;
}

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

.cta-section .btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.cta-section .btn-outline:hover {
  background: #fff;
  color: var(--primary);
}

/* ===== Not Found ===== */
.not-found-section {
  position: relative;
  padding: 140px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  overflow: hidden;
}

.not-found-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.not-found-section .container {
  position: relative;
  z-index: 2;
}

.not-found-section .nf-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.not-found-section h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}

.not-found-section p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.75);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand .footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 18px;
}

.badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.badge-accent {
  background: rgba(232, 163, 32, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(232, 163, 32, 0.3);
}

.footer-col h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after,
.footer-contact h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .recommend-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 768px) {
  .header-inner {
    justify-content: space-between;
    padding: 0 16px;
    min-height: 64px;
  }

  .nav-left,
  .nav-right {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 12px 20px;
    gap: 4px;
    align-items: stretch;
    box-shadow: var(--shadow-md);
  }

  .nav-left {
    justify-content: flex-start;
  }

  .nav-right {
    justify-content: flex-start;
  }

  .nav-left.open,
  .nav-right.open {
    display: flex;
  }

  .nav-link {
    justify-content: center;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }

  .nav-toggle {
    display: flex;
  }

  .logo-center {
    font-size: 20px;
  }

  .article-hero {
    padding: 56px 0 64px;
  }

  .article-hero h1 {
    font-size: 24px;
  }

  .article-content {
    padding: 28px 24px;
  }

  .article-cover {
    margin-top: -28px;
  }

  .article-cover img {
    aspect-ratio: 16 / 9;
  }

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

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

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

  .faq-item summary {
    font-size: 15px;
    padding: 18px 20px;
  }
}

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

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

  .article-body-wrap {
    padding: 32px 16px 16px;
  }

  .article-bottom {
    padding: 0 16px 16px;
  }

  .article-content table {
    font-size: 13px;
  }

  .article-content table th,
  .article-content table td {
    padding: 8px 10px;
  }

  .article-hero h1 {
    font-size: 21px;
  }

  .article-meta {
    gap: 10px;
    font-size: 13px;
  }

  .btn {
    padding: 10px 22px;
    font-size: 14px;
  }

  .not-found-section {
    padding: 80px 0;
  }

  .not-found-section h2 {
    font-size: 28px;
  }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
  :root {
    --primary: #0d2b4e;
    --primary-light: #16457a;
    --primary-dark: #081d33;
    --accent: #d4a24e;
    --accent-strong: #b88936;
    --accent-light: #f0d9a8;
    --bg: #f5f7fa;
    --bg-white: #ffffff;
    --bg-dark: #0a1c30;
    --text: #18202b;
    --text-weak: #5f6d7c;
    --text-light: #a8b3c0;
    --border: #e2e8f0;
    --radius: 18px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --shadow: 0 4px 24px rgba(13, 43, 78, 0.08);
    --shadow-lg: 0 14px 48px rgba(13, 43, 78, 0.14);
    --shadow-accent: 0 6px 24px rgba(212, 162, 78, 0.3);
    --transition: all 0.3s ease;
    --container: 1200px;
    --header-h: 76px;
  }

  /* ===== 基础 Reset ===== */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

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

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

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

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

  ul, ol {
    list-style: none;
  }

  button, input, select, textarea {
    font: inherit;
    border: none;
    outline: none;
  }

  h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    font-weight: 700;
    color: var(--text);
  }

  ::selection {
    background: var(--accent);
    color: #fff;
  }

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

  /* ===== Header / 导航 ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    box-shadow: 0 2px 12px rgba(13, 43, 78, 0.04);
  }

  .header-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
  }

  .brand-logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1px;
    white-space: nowrap;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, var(--accent-strong) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    padding: 0 8px;
  }

  .brand-logo::after {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 2px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    opacity: 0.7;
  }

  .nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
    transition: var(--transition);
    white-space: nowrap;
  }

  .nav-link:hover {
    color: var(--primary);
    background: rgba(13, 43, 78, 0.06);
  }

  .nav-link.active {
    color: var(--primary);
    background: rgba(13, 43, 78, 0.08);
    font-weight: 600;
  }

  .nav-link.active::before {
    content: "●";
    font-size: 8px;
    color: var(--accent);
    margin-right: 2px;
  }

  .nav-toggle {
    display: none;
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1002;
    border-radius: var(--radius-xs);
  }

  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--primary);
    margin: 5px 0;
    border-radius: 4px;
    transition: var(--transition);
  }

  /* ===== 通用板块 ===== */
  .section {
    padding: 88px 0;
  }

  .section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(212, 162, 78, 0.12);
    color: var(--accent-strong);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 14px;
  }

  .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 52px;
  }

  .section-head h2 {
    font-size: 36px;
    margin-bottom: 14px;
    color: var(--primary);
  }

  .section-head p {
    color: var(--text-weak);
    font-size: 16px;
  }

  .section-head .section-tag {
    margin-bottom: 12px;
  }

  /* ===== 徽章 / 标签 ===== */
  .badge {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(13, 43, 78, 0.08);
    color: var(--primary);
  }

  .badge-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: var(--shadow-accent);
  }

  .tag {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(4px);
  }

  .card-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-strong);
    background: rgba(212, 162, 78, 0.12);
  }

  /* ===== 按钮 ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 20px rgba(13, 43, 78, 0.25);
  }

  .btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(13, 43, 78, 0.32);
  }

  .btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 6px 20px rgba(212, 162, 78, 0.3);
  }

  .btn-accent:hover {
    background: var(--accent-strong);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(212, 162, 78, 0.4);
  }

  .btn-light {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  }

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

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

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

  .btn:focus-visible {
    outline: 3px solid rgba(212, 162, 78, 0.45);
    outline-offset: 2px;
  }

  /* ===== Page Banner ===== */
  .page-banner {
    position: relative;
    padding: 110px 0 130px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    overflow: hidden;
  }

  .page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8, 29, 51, 0.92) 0%, rgba(13, 43, 78, 0.82) 55%, rgba(13, 43, 78, 0.45) 100%);
    z-index: 1;
  }

  .page-banner::after {
    content: "";
    position: absolute;
    bottom: -60px;
    right: -40px;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(212, 162, 78, 0.35) 0%, transparent 70%);
    z-index: 1;
  }

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

  .banner-inner {
    max-width: 780px;
  }

  .banner-inner .badge {
    margin-bottom: 18px;
  }

  .banner-inner h1 {
    font-size: 48px;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 2px;
    line-height: 1.25;
  }

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

  .banner-inner p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.88);
    max-width: 620px;
    margin-bottom: 26px;
    line-height: 1.8;
  }

  .banner-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .banner-stat-row {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
  }

  .banner-stat-item {
    text-align: left;
  }

  .banner-stat-item strong {
    display: block;
    font-size: 28px;
    color: var(--accent);
  }

  .banner-stat-item span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
  }

  /* ===== 热门项目矩阵 ===== */
  .entry-section {
    background: var(--bg-white);
  }

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

  .entry-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 26px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }

  .entry-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
  }

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

  .entry-card:hover::before {
    transform: scaleX(1);
  }

  .entry-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    font-size: 24px;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(13, 43, 78, 0.22);
    transition: var(--transition);
  }

  .entry-card:nth-child(2n) .entry-icon {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
    box-shadow: 0 8px 20px rgba(212, 162, 78, 0.3);
  }

  .entry-card:hover .entry-icon {
    transform: scale(1.08) rotate(-4deg);
  }

  .entry-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary);
  }

  .entry-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.65;
    flex: 1;
    margin-bottom: 18px;
  }

  .entry-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-strong);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
  }

  .entry-more i {
    transition: transform 0.3s ease;
  }

  .entry-card:hover .entry-more i {
    transform: translateX(4px);
  }

  /* ===== 资讯列表 ===== */
  .news-section {
    background: var(--bg);
  }

  .news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
  }

  .news-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(226, 232, 240, 0.6);
  }

  .news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
  }

  .news-thumb {
    position: relative;
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
  }

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

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

  .news-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(8, 29, 51, 0.32) 0%, transparent 55%);
  }

  .news-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(13, 43, 78, 0.75);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
  }

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

  .news-date {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .news-body h3 {
    font-size: 18px;
    line-height: 1.45;
    margin-bottom: 12px;
  }

  .news-body h3 a {
    color: var(--text);
  }

  .news-body h3 a:hover {
    color: var(--accent-strong);
  }

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

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

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

  .news-link i {
    transition: transform 0.3s ease;
  }

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

  /* ===== 数据统计 ===== */
  .stats-section {
    background: var(--bg-dark);
    padding: 76px 0;
    position: relative;
    overflow: hidden;
  }

  .stats-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(13, 43, 78, 0.7) 0%, transparent 70%);
    pointer-events: none;
  }

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

  .stat-item {
    text-align: center;
    padding: 30px 16px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
  }

  .stat-item:hover {
    background: rgba(212, 162, 78, 0.1);
    border-color: rgba(212, 162, 78, 0.3);
    transform: translateY(-4px);
  }

  .stat-num {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 6px;
    letter-spacing: 2px;
  }

  .stat-label {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 1px;
  }

  /* ===== 图文介绍 ===== */
  .feature-section {
    background: var(--bg-white);
  }

  .feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
  }

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

  .feature-media img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
  }

  .feature-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13, 43, 78, 0.1) 0%, transparent 55%);
  }

  .feature-media-tag {
    position: absolute;
    bottom: 20px;
    left: 20px;
    z-index: 2;
    padding: 8px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
  }

  .feature-content {
    padding: 10px 0;
  }

  .feature-content h2 {
    font-size: 32px;
    line-height: 1.35;
    color: var(--primary);
    margin-bottom: 18px;
  }

  .feature-content > p {
    color: var(--text-weak);
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 28px;
  }

  .feature-list {
    margin-bottom: 30px;
  }

  .feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text);
    border-bottom: 1px dashed var(--border);
  }

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

  .feature-list li i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 2px;
  }

  .feature-list li strong {
    color: var(--primary);
  }

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

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

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

  .faq-item:hover {
    border-color: rgba(212, 162, 78, 0.4);
    box-shadow: var(--shadow);
  }

  .faq-item summary {
    cursor: pointer;
    padding: 20px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    list-style: none;
    transition: var(--transition);
  }

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

  .faq-item summary::after {
    content: "\f107";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--accent);
    font-size: 18px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
  }

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

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

  .faq-content {
    padding: 20px 28px 24px;
    font-size: 15px;
    color: var(--text-weak);
    line-height: 1.8;
  }

  /* ===== CTA ===== */
  .cta-section {
    background:
      linear-gradient(135deg, rgba(8, 29, 51, 0.92) 0%, rgba(13, 43, 78, 0.88) 100%),
      url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
    padding: 96px 0;
    position: relative;
    overflow: hidden;
  }

  .cta-section::after {
    content: "";
    position: absolute;
    top: -80px;
    right: -60px;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, rgba(212, 162, 78, 0.3) 0%, transparent 70%);
    pointer-events: none;
  }

  .cta-box {
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
  }

  .cta-box h2 {
    font-size: 36px;
    color: #fff;
    margin-bottom: 14px;
  }

  .cta-box p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
  }

  .cta-box .btn {
    min-width: 180px;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.75);
  }

  .site-footer .container {
    position: relative;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding: 64px 0 48px;
  }

  .footer-logo {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    margin-bottom: 14px;
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
    max-width: 320px;
  }

  .footer-col h4 {
    font-size: 15px;
    color: #fff;
    margin-bottom: 18px;
    font-weight: 600;
  }

  .footer-col ul li {
    margin-bottom: 10px;
  }

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

  .footer-col ul a:hover {
    color: var(--accent);
    padding-left: 6px;
  }

  .footer-contact h4 {
    font-size: 15px;
    color: #fff;
    margin-bottom: 18px;
    font-weight: 600;
  }

  .footer-contact p {
    font-size: 14px;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
  }

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

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .entry-grid {
      grid-template-columns: repeat(3, 1fr);
    }

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

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

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

    .banner-inner h1 {
      font-size: 40px;
    }
  }

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

    .nav-toggle {
      display: block;
    }

    .nav-left,
    .nav-right {
      display: none;
      position: absolute;
      top: var(--header-h);
      left: 0;
      right: 0;
      background: #fff;
      padding: 16px 24px;
      flex-direction: column;
      align-items: stretch;
      gap: 6px;
      box-shadow: 0 20px 40px rgba(13, 43, 78, 0.12);
      border-bottom: 1px solid var(--border);
      border-radius: 0 0 18px 18px;
    }

    .site-header.nav-open .nav-left,
    .site-header.nav-open .nav-right {
      display: flex;
    }

    .nav-link {
      padding: 12px 18px;
      font-size: 16px;
      border-radius: 10px;
      justify-content: center;
    }

    .site-header.nav-open .nav-toggle span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }

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

    .site-header.nav-open .nav-toggle span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    .page-banner {
      padding: 72px 0 90px;
    }

    .banner-inner h1 {
      font-size: 32px;
    }

    .banner-inner p {
      font-size: 16px;
    }

    .banner-stat-row {
      gap: 24px;
    }

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

    .news-grid {
      grid-template-columns: 1fr;
      max-width: 480px;
      margin: 0 auto;
    }

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

    .feature-content h2 {
      font-size: 28px;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .stat-num {
      font-size: 34px;
    }

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

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

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

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

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .banner-inner h1 {
      font-size: 27px;
    }

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

    .brand-logo {
      font-size: 18px;
    }

    .banner-stat-row {
      flex-direction: column;
      gap: 16px;
    }

    .section-head h2 {
      font-size: 27px;
    }

    .cta-box .btn {
      width: 100%;
    }

    .faq-item summary {
      padding: 16px 18px;
      font-size: 15px;
    }

    .faq-content {
      padding: 16px 18px;
    }
  }

  /* ===== 无障碍焦点 ===== */
  a:focus-visible,
  button:focus-visible,
  summary:focus-visible {
    outline: 3px solid rgba(212, 162, 78, 0.5);
    outline-offset: 2px;
  }