/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #FF5A1F;
  --primary-dark: #E64A0E;
  --primary-light: #FFF1EB;
  --secondary: #1B2A41;
  --secondary-light: #2C4058;
  --bg: #F7F8FC;
  --white: #FFFFFF;
  --border: #E8ECF1;
  --text: #1A1D24;
  --text-weak: #6B7280;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
  --space: 110px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

ul, ol {
  list-style: none;
}

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

/* ===== 头部导航 ===== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background-color: rgba(255, 255, 255, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 72px;
  position: relative;
}

.header-inner .logo-wrap {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  text-align: center;
}

.site-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

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

.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
}

.nav-left {
  justify-content: flex-start;
  padding-right: 180px;
}

.nav-right {
  justify-content: flex-end;
  padding-left: 180px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 8px 0;
}

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

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

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

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

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

.nav-cta {
  background: var(--primary);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 90, 31, 0.35);
}

.nav-cta:active {
  transform: translateY(0);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text);
  cursor: pointer;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--white);
  padding: 16px 24px 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  z-index: 99;
  border-radius: 0 0 var(--radius) var(--radius);
  flex-direction: column;
  gap: 4px;
}

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

.mobile-menu a {
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  color: var(--text);
}

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height: 580px;
  display: flex;
  align-items: center;
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(18, 22, 33, 0.82), rgba(18, 22, 33, 0.45));
  z-index: -1;
}

.hero-content {
  max-width: 720px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 90, 31, 0.18);
  border: 1px solid rgba(255, 90, 31, 0.3);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: #FFB59A;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 span {
  color: #FF7A45;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  max-width: 560px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 90, 31, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

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

.btn-dark {
  background: var(--secondary);
  color: var(--white);
}

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

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

/* ===== 板块通用 ===== */
.section {
  padding: var(--space) 0;
}

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 16px;
  color: var(--text-weak);
  max-width: 640px;
  line-height: 1.8;
}

.section-header {
  margin-bottom: 48px;
}

.section-header .section-desc {
  margin-top: 8px;
}

/* ===== 特点卡片 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #FF9A75);
  opacity: 0;
  transition: var(--transition);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 20px;
}

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

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

/* ===== 分类入口 ===== */
.categories-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.category-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 300px;
  display: flex;
  align-items: flex-end;
  transition: var(--transition);
  background: var(--secondary);
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  transition: var(--transition);
}

.category-card:hover img {
  transform: scale(1.05);
  opacity: 0.4;
}

.category-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 10%, rgba(0, 0, 0, 0.85));
}

.category-info {
  position: relative;
  z-index: 1;
  padding: 32px;
  width: 100%;
}

.category-info .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(255, 90, 31, 0.15);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.category-info h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}

.category-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 16px;
  max-width: 400px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  background: var(--primary);
  padding: 10px 22px;
  border-radius: 50px;
  transition: var(--transition);
}

.category-link:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateX(4px);
}

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

.news-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.news-featured {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

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

.news-featured img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 0;
}

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

.news-featured-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
}

.news-featured-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

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

.news-featured-content h3 a:hover {
  color: var(--primary);
}

.news-featured-content p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.news-list-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: var(--transition);
}

.news-list-item:hover {
  border-color: var(--primary);
  box-shadow: 0 6px 20px rgba(255, 90, 31, 0.1);
  transform: translateX(4px);
}

.news-list-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.5;
}

.news-list-item h4 a {
  color: var(--text);
}

.news-list-item h4 a:hover {
  color: var(--primary);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-weak);
}

.news-meta .badge {
  font-size: 11px;
  padding: 2px 10px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-weight: 600;
}

.news-empty {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--text-weak);
  font-size: 16px;
}

/* ===== 数据统计 ===== */
.stats-section {
  background: var(--secondary);
  position: relative;
  overflow: hidden;
}

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  text-align: center;
}

.stat-item {
  padding: 30px 16px;
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 500;
}

/* ===== 评分推荐 ===== */
.review-section {
  background: var(--white);
}

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

.review-visual {
  position: relative;
}

.review-visual img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.review-floating {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.review-floating .score {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.review-floating .score-label {
  font-size: 13px;
  color: var(--text-weak);
}

.review-content h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 20px;
}

.review-content p {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 28px;
}

.rating-list {
  margin-bottom: 24px;
}

.rating-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.rating-label {
  width: 80px;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

.rating-bar {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.rating-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #FF9A75);
  border-radius: 4px;
  transition: width 0.8s ease;
}

.rating-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  width: 36px;
  text-align: right;
  flex-shrink: 0;
}

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

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

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

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

.faq-question {
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}

.faq-question::after {
  content: '\F105';
  font-family: 'Font Awesome 6 Free', 'Font Awesome 5 Free';
  font-weight: 900;
  color: var(--primary);
  transition: var(--transition);
  font-size: 18px;
}

.faq-item.open .faq-question::after {
  transform: rotate(90deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  padding: 0 24px 22px;
  max-height: 500px;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.08;
}

.cta-content {
  position: relative;
  text-align: center;
  padding: 80px 0;
}

.cta-content h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 500px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #141925;
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 30px;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .site-logo {
  color: var(--white);
  font-size: 24px;
  margin-bottom: 12px;
  display: inline-block;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

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

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

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

/* ===== 通用标签 ===== */
.tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text);
  transition: var(--transition);
}

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

/* ===== 分割线 ===== */
.divider {
  width: 48px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  margin: 16px 0 24px;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  :root {
    --space: 80px;
  }

  .nav-left, .nav-right {
    gap: 20px;
  }

  .nav-left {
    padding-right: 120px;
  }

  .nav-right {
    padding-left: 120px;
  }

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

  .hero h1 {
    font-size: 40px;
  }

  .section-title {
    font-size: 30px;
  }

  .stats-grid {
    gap: 24px;
  }

  .stat-number {
    font-size: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --space: 60px;
  }

  .header-inner {
    justify-content: space-between;
    height: 64px;
  }

  .header-inner .logo-wrap {
    position: static;
    transform: none;
    margin: 0 auto;
  }

  .nav-left, .nav-right {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-menu {
    top: 64px;
  }

  .hero {
    min-height: 480px;
  }

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

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

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

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

  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .categories-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .category-card {
    min-height: 220px;
  }

  .news-layout {
    grid-template-columns: 1fr;
  }

  .review-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .review-visual img {
    height: 300px;
  }

  .review-floating {
    bottom: -10px;
    left: 10px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .stat-number {
    font-size: 36px;
  }

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

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

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

@media (max-width: 520px) {
  :root {
    --space: 48px;
  }

  .container {
    padding: 0 16px;
  }

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

  .site-logo {
    font-size: 16px;
  }

  .hero {
    min-height: 420px;
  }

  .hero h1 {
    font-size: 28px;
  }

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-number {
    font-size: 30px;
  }

  .stat-label {
    font-size: 13px;
  }

  .news-featured img {
    height: 180px;
  }

  .news-featured-content h3 {
    font-size: 19px;
  }

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

/* ===== 可访问性 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(255, 90, 31, 0.4);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== 其他功能 ===== */
.no-scroll {
  overflow: hidden;
}

.news-list-item a {
  display: block;
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #7C3AED;
  --primary-dark: #5B21B6;
  --primary-light: #A78BFA;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --dark: #0F172A;
  --dark-soft: #1E293B;
  --light: #F8FAFC;
  --white: #FFFFFF;
  --text: #1E293B;
  --text-muted: #64748B;
  --border: #E2E8F0;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.12);
  --space-section: 96px;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
button { cursor: pointer; font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.25; font-weight: 700; }
p { margin: 0; }
input, textarea, select { font-family: inherit; }
i, em { font-style: normal; }

/* ===== 容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.section { padding: var(--space-section) 0; }
.section-dark {
  background: var(--dark);
  color: var(--white);
}
.section-light { background: var(--light); }

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(124, 58, 237, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-dark .section-label { background: rgba(255,255,255,0.12); color: var(--primary-light); }
.section-title {
  font-size: 38px;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
}
.section-dark .section-title { color: var(--white); }
.section-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-dark .section-subtitle { color: rgba(255,255,255,0.68); }

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0;
  height: 72px;
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: relative;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(124, 58, 237, 0.06);
}
.nav-link.active {
  color: var(--primary);
  background: rgba(124, 58, 237, 0.08);
  font-weight: 600;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.32);
  transition: all 0.25s ease;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
  color: var(--white);
}
.logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.site-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}
.site-logo span {
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
}
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 18px;
}

/* ===== 页面横幅 Hero ===== */
.page-hero {
  position: relative;
  padding: 120px 0 110px;
  background: linear-gradient(120deg, rgba(15,23,42,0.9), rgba(15,23,42,0.65)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: var(--white);
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -60px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.25);
  filter: blur(80px);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-content h1 {
  font-size: 52px;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-content h1 .dot {
  color: var(--accent);
}
.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin-bottom: 36px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45);
  color: var(--dark);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
  color: var(--white);
  transform: translateY(-2px);
}

/* ===== 统计条 ===== */
.stats-strip {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px 48px;
  margin-top: -48px;
  position: relative;
  z-index: 5;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stats-item .num {
  font-size: 40px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  display: block;
}
.stats-item .num em { font-style: normal; font-size: 24px; }
.stats-item .label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
  display: block;
}
.stats-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ===== 推荐方法论 ===== */
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.method-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.method-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.method-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(124, 58, 237, 0.2);
}
.method-card:hover::before { opacity: 1; }
.method-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(245,158,11,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 20px;
}
.method-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--text);
}
.method-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 游戏类型入口 ===== */
.type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.type-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}
.type-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(124, 58, 237, 0.25);
}
.type-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 22px;
  box-shadow: 0 6px 16px rgba(124, 58, 237, 0.3);
}
.type-card:nth-child(2) .type-icon { background: linear-gradient(135deg, #F59E0B, #FBBF24); box-shadow: 0 6px 16px rgba(245,158,11,0.3); }
.type-card:nth-child(3) .type-icon { background: linear-gradient(135deg, #10B981, #34D399); box-shadow: 0 6px 16px rgba(16,185,129,0.3); }
.type-card:nth-child(4) .type-icon { background: linear-gradient(135deg, #EF4444, #F87171); box-shadow: 0 6px 16px rgba(239,68,68,0.3); }
.type-card:nth-child(5) .type-icon { background: linear-gradient(135deg, #3B82F6, #60A5FA); box-shadow: 0 6px 16px rgba(59,130,246,0.3); }
.type-card:nth-child(6) .type-icon { background: linear-gradient(135deg, #8B5CF6, #A78BFA); box-shadow: 0 6px 16px rgba(139,92,246,0.3); }
.type-info h3 {
  font-size: 17px;
  margin-bottom: 4px;
  color: var(--text);
}
.type-info p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== 精选游戏推荐 ===== */
.game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.game-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}
.game-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.game-cover {
  position: relative;
  width: 100%;
  height: 180px;
  overflow: hidden;
}
.game-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.game-card:hover .game-cover img { transform: scale(1.06); }
.game-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(15,23,42,0.35));
}
.game-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255,255,255,0.94);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}
.game-score {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  background: rgba(15,23,42,0.85);
  color: var(--accent);
  font-size: 20px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(6px);
}
.game-score small {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
}
.game-body {
  padding: 22px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.game-body h3 {
  font-size: 18px;
  margin-bottom: 6px;
  color: var(--text);
}
.game-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(124, 58, 237, 0.07);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
}
.tag.alt {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-dark);
}
.game-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}
.game-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.game-meta i { color: var(--accent); margin-right: 4px; }

/* ===== 对比评分 ===== */
.compare-section {
  background: linear-gradient(135deg, #0F172A 0%, #1E1B2E 50%, #1E293B 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.compare-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 320px;
  height: 320px;
  background: rgba(124, 58, 237, 0.2);
  border-radius: 50%;
  filter: blur(100px);
}
.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}
.compare-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  backdrop-filter: blur(10px);
  transition: all 0.35s ease;
}
.compare-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.2);
}
.compare-card h3 {
  font-size: 20px;
  margin-bottom: 4px;
}
.compare-card .compare-type {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}
.score-row {
  margin-bottom: 16px;
}
.score-row .score-head {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 6px;
}
.score-row .score-head span:last-child {
  font-weight: 700;
  color: var(--accent);
}
.score-bar {
  height: 6px;
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
  overflow: hidden;
}
.score-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 1s ease;
}
.compare-total {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.compare-total .total-label {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}
.compare-total .total-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item .accordion-title {
  background: none;
  border: none;
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  text-align: left;
  position: relative;
}
.faq-item .accordion-title::after {
  content: '+';
  font-size: 22px;
  color: var(--primary);
  font-weight: 700;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.is-active .accordion-title::after {
  transform: rotate(45deg);
}
.faq-item .accordion-content {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  background: var(--white);
  border: none;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(120deg, rgba(124,58,237,0.95), rgba(91,33,182,0.95)), url('/assets/images/backpic/back-2.png') center/cover;
  color: var(--white);
  text-align: center;
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -60px;
  left: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(245,158,11,0.3);
  filter: blur(80px);
}
.cta-inner {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.cta-inner h2 {
  font-size: 36px;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}
.cta-btns {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}
.cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0B1020;
  color: rgba(255,255,255,0.6);
  padding: 70px 0 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 28px;
}
.footer-brand .site-logo {
  color: var(--white);
  margin-bottom: 16px;
  display: inline-block;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  color: var(--white);
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col a {
  display: flex;
  align-items: center;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 12px;
  transition: color 0.25s ease, transform 0.25s ease;
}
.footer-col a:hover {
  color: var(--white);
  transform: translateX(4px);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ===== 移动端菜单 ===== */
@media (max-width: 1024px) {
  .game-grid { grid-template-columns: repeat(2, 1fr); }
  .type-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-card:last-child { grid-column: span 2; }
}

@media (max-width: 900px) {
  :root { --space-section: 72px; }
  .site-header { height: 64px; }
  .header-inner { gap: 12px; }
  .menu-toggle {
    display: flex;
    order: -1;
  }
  .nav-left {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    z-index: 99;
  }
  .nav-right {
    position: fixed;
    top: auto;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 24px 20px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.35s ease 0.05s;
    z-index: 98;
  }
  .nav-left.open, .nav-right.open { transform: translateY(0); }
  .nav-left.open { top: 64px; }
  .nav-right.open { top: calc(64px + 180px); }
  .nav-link {
    width: 100%;
    padding: 12px 14px;
    font-size: 16px;
  }
  .nav-cta {
    margin-top: 8px;
    width: 100%;
    justify-content: center;
  }
  .logo-wrap { order: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stats-divider { display: none; }
  .hero-content h1 { font-size: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .section-title { font-size: 30px; }
  .method-grid { grid-template-columns: 1fr; }
  .type-grid { grid-template-columns: 1fr; }
  .game-grid { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-card:last-child { grid-column: auto; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .page-hero { padding: 80px 0; }
  .page-hero h1 { font-size: 36px; }
  .hero-desc { font-size: 16px; }
  .stats-strip { padding: 28px 24px; margin-top: -32px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; align-items: center; }
}

@media (max-width: 520px) {
  :root { --space-section: 56px; }
  .container { padding: 0 18px; }
  .game-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 32px; }
  .hero-btns .btn { width: 100%; }
  .btn { padding: 13px 24px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stats-item .num { font-size: 30px; }
  .compare-grid { grid-template-columns: 1fr; }
  .cta-inner h2 { font-size: 28px; }
  .cta-btns .btn { width: 100%; }
  .faq-item .accordion-title { font-size: 15px; padding: 18px 20px; }
  .faq-item .accordion-content { padding: 0 20px 18px; font-size: 14px; }
  .logo-wrap .site-logo { font-size: 20px; }
  .logo-wrap .site-logo span { font-size: 15px; }
}

/* ===== 自定义滚动与选择 ===== */
::selection {
  background: rgba(124, 58, 237, 0.2);
  color: var(--text);
}
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--light); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

/* ===== 按钮 focus 可访问性 ===== */
.btn:focus-visible,
.nav-link:focus-visible,
.nav-cta:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid rgba(124, 58, 237, 0.4);
  outline-offset: 2px;
}

/* roulang page: article */
:root{
  --primary:#1b3a5c;
  --primary-dark:#122a44;
  --primary-soft:#e8eef5;
  --accent:#f59e0b;
  --accent-hover:#d97706;
  --bg-body:#f5f6f8;
  --bg-white:#ffffff;
  --bg-light:#edf1f5;
  --bg-dark:#0f1c2e;
  --text-main:#1e232b;
  --text-muted:#6b7480;
  --text-light:#ffffff;
  --border:#e5e8ec;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-sm:0 2px 12px rgba(15,28,46,.06);
  --shadow-md:0 8px 30px rgba(15,28,46,.08);
  --shadow-lg:0 16px 48px rgba(15,28,46,.12);
  --font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-family);
  background:var(--bg-body);
  color:var(--text-main);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s}
button,input,select,textarea{font:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--accent);
  text-transform:uppercase;
  background:rgba(245,158,11,.08);
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:34px;
  line-height:1.25;
  margin:0 0 12px;
  color:var(--primary);
  font-weight:800;
}
.section-head p{color:var(--text-muted);font-size:16px;margin:0}
.btn-primary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--accent);
  color:var(--text-light);
  padding:13px 28px;
  border-radius:999px;
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:all .25s;
  box-shadow:0 6px 18px rgba(245,158,11,.25);
}
.btn-primary:hover{
  background:var(--accent-hover);
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(245,158,11,.32);
  color:#fff;
}
.btn-primary:focus{outline:3px solid rgba(245,158,11,.35);outline-offset:2px}
.btn-outline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:transparent;
  border:2px solid rgba(255,255,255,.7);
  color:#fff;
  padding:12px 26px;
  border-radius:999px;
  font-weight:600;
  transition:all .25s;
}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.badge-accent{
  display:inline-block;
  background:var(--accent);
  color:#fff;
  font-size:13px;
  font-weight:700;
  padding:5px 14px;
  border-radius:999px;
  letter-spacing:.5px;
}
/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 16px rgba(15,28,46,.04);
}
.header-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  padding:14px 0;
}
.menu-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border:none;
  background:var(--primary-soft);
  color:var(--primary);
  border-radius:10px;
  font-size:18px;
  cursor:pointer;
  transition:background .2s;
  flex-shrink:0;
}
.menu-toggle:hover{background:#d5dee9}
.menu-toggle:focus{outline:3px solid rgba(27,58,92,.2)}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-left{flex:1;justify-content:flex-start}
.nav-right{flex:1;justify-content:flex-end}
.nav-link{
  font-size:15px;
  font-weight:500;
  color:var(--text-main);
  padding:6px 2px;
  position:relative;
  white-space:nowrap;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transition:width .25s;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{width:100%}
.nav-cta{
  display:inline-flex;
  align-items:center;
  padding:8px 20px;
  background:var(--accent);
  color:#fff;
  border-radius:999px;
  font-weight:600;
  font-size:14px;
  transition:all .25s;
  white-space:nowrap;
}
.nav-cta:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 16px rgba(245,158,11,.3);color:#fff}
.logo-wrap{flex-shrink:0}
.site-logo{
  font-size:22px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:.5px;
  display:inline-flex;
  align-items:center;
  gap:2px;
}
.site-logo span{color:var(--accent);font-weight:700}
/* Article Hero */
.article-hero{
  position:relative;
  padding:100px 0 84px;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:4px solid var(--accent);
}
.article-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(12,27,44,.93),rgba(27,58,92,.82));
}
.article-hero-content{
  position:relative;
  z-index:1;
  max-width:900px;
  margin:0 auto;
  text-align:center;
  color:#fff;
}
.article-hero .badge-accent{margin-bottom:18px}
.article-hero h1{
  font-size:42px;
  line-height:1.25;
  font-weight:800;
  margin:0 0 20px;
  text-shadow:0 4px 20px rgba(0,0,0,.2);
}
.article-meta{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:12px 26px;
  font-size:14px;
  color:rgba(255,255,255,.75);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--accent)}
/* Article Content */
.article-section{
  padding:60px 0 40px;
  background:var(--bg-body);
}
.article-main{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  padding:40px 48px 44px;
  margin-top:-40px;
  position:relative;
  z-index:2;
}
.article-content{
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-main);
}
.article-content h2{
  font-size:24px;
  color:var(--primary);
  margin:36px 0 16px;
  font-weight:700;
}
.article-content h3{
  font-size:20px;
  color:var(--primary);
  margin:28px 0 12px;
  font-weight:600;
}
.article-content p{margin:0 0 18px}
.article-content img{
  border-radius:var(--radius-md);
  margin:24px 0;
  box-shadow:var(--shadow-sm);
}
.article-content ul,.article-content ol{
  margin:0 0 20px;
  padding-left:22px;
}
.article-content li{margin-bottom:6px}
.article-content blockquote{
  border-left:4px solid var(--accent);
  background:var(--primary-soft);
  margin:24px 0;
  padding:14px 22px;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--primary);
  font-style:normal;
}
.article-content a{color:var(--accent-hover);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--accent)}
.author-box{
  display:flex;
  gap:16px;
  align-items:flex-start;
  margin-top:40px;
  padding:24px 26px;
  background:var(--primary-soft);
  border-radius:var(--radius-md);
  border:1px solid #e1e9f2;
}
.author-avatar{
  width:52px;
  height:52px;
  min-width:52px;
  background:var(--primary);
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
}
.author-info strong{display:block;color:var(--primary);font-size:16px;margin-bottom:4px}
.author-info p{margin:0;font-size:14px;color:var(--text-muted);line-height:1.6}
.article-share{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:22px;
  padding-top:22px;
  border-top:1px solid var(--border);
}
.article-share span{font-size:14px;color:var(--text-muted)}
.share-btn{
  width:38px;
  height:38px;
  border-radius:50%;
  background:var(--bg-light);
  color:var(--text-muted);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  transition:all .25s;
}
.share-btn:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
/* Related */
.related-section{padding:70px 0 60px;background:var(--bg-white)}
.related-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  transition:transform .3s,box-shadow .3s;
  height:100%;
  display:flex;
  flex-direction:column;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-img{
  position:relative;
  height:190px;
  overflow:hidden;
}
.card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s;
}
.related-card:hover .card-img img{transform:scale(1.05)}
.card-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(12,27,44,.45));
}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body .tag-text{
  font-size:12px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.5px;
}
.card-body h3{font-size:17px;font-weight:700;color:var(--primary);margin:0;line-height:1.4}
.card-body p{font-size:14px;color:var(--text-muted);margin:0;line-height:1.6;flex:1}
.card-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.card-link i{transition:transform .2s}
.card-link:hover i{transform:translateX(4px)}
/* Trending / Data */
.trending-section{padding:70px 0;background:var(--bg-light)}
.rank-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rank-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:28px 26px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  transition:transform .25s,box-shadow .25s;
}
.rank-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.rank-num{
  font-size:34px;
  font-weight:800;
  color:var(--accent);
  line-height:1;
  margin-bottom:14px;
}
.rank-card h4{
  font-size:16px;
  font-weight:700;
  color:var(--primary);
  margin:0 0 6px;
}
.rank-card .rank-label{font-size:13px;color:var(--text-muted);margin-bottom:16px}
.rating-bar{
  height:7px;
  border-radius:99px;
  background:#e9edf2;
  overflow:hidden;
  margin-bottom:10px;
}
.rating-bar span{
  display:block;
  height:100%;
  border-radius:99px;
  background:linear-gradient(90deg,var(--accent),#fbbf24);
}
.rank-value{
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  display:flex;
  justify-content:space-between;
}
.rank-value span:first-child{color:var(--text-muted);font-weight:500}
/* FAQ */
.faq-section{padding:70px 0;background:var(--bg-white)}
.faq-list{
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:var(--shadow-sm);
  padding:0;
  overflow:hidden;
  transition:box-shadow .25s;
}
.faq-item[open]{box-shadow:var(--shadow-md);border-color:#dbe2ea}
.faq-item summary{
  padding:20px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--text-main);
  cursor:pointer;
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'\f078';
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  color:var(--text-muted);
  font-size:13px;
  transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(180deg);color:var(--accent)}
.faq-text{
  padding:0 26px 22px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.75;
  border-top:1px solid var(--border);
  margin-top:0;
}
.faq-text p{margin:14px 0 0}
/* CTA */
.cta-section{
  position:relative;
  padding:80px 0;
  background:linear-gradient(135deg,var(--primary-dark),var(--primary) 60%,#245582);
  text-align:center;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  top:-60%;
  right:-20%;
  width:480px;
  height:480px;
  background:radial-gradient(circle,rgba(245,158,11,.22),transparent 60%);
  border-radius:50%;
}
.cta-inner{
  max-width:720px;
  margin:0 auto;
  position:relative;
  z-index:1;
}
.cta-inner h2{color:#fff;font-size:32px;font-weight:800;margin:0 0 14px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;margin:0 0 32px;line-height:1.7}
/* Footer */
.site-footer{background:var(--bg-dark);color:#c3cedb;padding:64px 0 0}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:48px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .site-logo{color:#fff;font-size:24px;margin-bottom:16px;display:inline-block}
.footer-brand .site-logo span{color:var(--accent)}
.footer-brand p{
  font-size:14px;
  line-height:1.75;
  color:#9aa7b5;
  margin:0;
  max-width:360px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin:0 0 18px;
}
.footer-col a{
  display:block;
  color:#9aa7b5;
  font-size:14px;
  padding:5px 0;
  transition:color .2s;
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  padding:22px 0;
  font-size:13px;
  color:#7e8c9a;
}
/* Not found */
.not-found-box{
  text-align:center;
  padding:60px 0;
}
.not-found-box h2{color:var(--primary);font-size:30px;margin-bottom:12px}
.not-found-box p{color:var(--text-muted);font-size:16px;margin-bottom:28px}
.not-found-section{padding:80px 0}
/* Responsive */
@media (max-width:1024px){
  .section{padding:64px 0}
  .article-hero{padding:80px 0 70px}
  .article-hero h1{font-size:34px}
  .rank-list{gap:18px}
}
@media (max-width:768px){
  .header-inner{position:relative;justify-content:space-between}
  .menu-toggle{display:inline-flex}
  .nav-left,.nav-right{
    flex:1 1 100%;
    display:none;
    flex-direction:row;
    flex-wrap:wrap;
    gap:10px 24px;
    order:3;
    padding:14px 2px 2px;
    border-top:1px solid var(--border);
    margin-top:6px;
    justify-content:flex-start;
  }
  .nav-right{justify-content:flex-start;padding-top:6px}
  .site-header.menu-open .nav-left,
  .site-header.menu-open .nav-right{display:flex}
  .logo-wrap{
    position:absolute;
    left:50%;
    transform:translateX(-50%);
  }
  .section-head h2{font-size:28px}
  .article-main{padding:28px 24px}
  .article-main{margin-top:-28px}
  .article-hero h1{font-size:28px}
  .article-meta{gap:10px 18px;font-size:13px}
  .rank-list{grid-template-columns:1fr 1fr}
  .card-img{height:170px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .cta-inner h2{font-size:26px}
}
@media (max-width:520px){
  .article-hero{padding:58px 0 54px}
  .article-hero h1{font-size:23px}
  .article-main{padding:22px 18px}
  .article-content{font-size:15px;line-height:1.85}
  .article-content h2{font-size:20px}
  .rank-list{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .related-section{padding:52px 0}
  .trending-section{padding:52px 0}
  .faq-section{padding:52px 0}
  .cta-section{padding:56px 0}
  .cta-inner h2{font-size:23px}
  .author-box{flex-direction:column;padding:20px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category2 */
:root {
  --primary: #ff6b35;
  --primary-dark: #e85a2a;
  --primary-light: #ff9866;
  --primary-soft: #fff0e9;
  --secondary: #1d3557;
  --secondary-light: #2a4a78;
  --accent: #ffd166;
  --bg: #f6f7fb;
  --bg-white: #ffffff;
  --bg-deep: #141b2d;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --border: #e8eaf0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-xs: 0 2px 6px rgba(0,0,0,0.04);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 30px rgba(0,0,0,0.1);
  --shadow-lg: 0 18px 44px rgba(0,0,0,0.14);
  --space-section: 84px;
  --space-section-sm: 56px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
}

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

ul,
ol {
  list-style: none;
}

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

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

.section-subhead {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 6px 16px;
  border-radius: 40px;
  letter-spacing: 1px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin-top: 14px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 640px;
  margin-top: 14px;
}

.section-head-center {
  text-align: center;
}

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

/* ===== Header / Nav ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}

.site-header .header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 72px;
  position: relative;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-self: end;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 9px 16px;
  border-radius: 40px;
  position: relative;
  white-space: nowrap;
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

.nav-cta {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 10px 22px;
  border-radius: 40px;
  box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
  white-space: nowrap;
  transition: transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(255, 107, 53, 0.42);
  color: #fff;
}

.logo-wrap {
  justify-self: center;
  padding: 0 12px;
}

.site-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: -0.5px;
  line-height: 1.2;
  white-space: nowrap;
}

.site-logo span {
  color: var(--primary);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
  box-shadow: var(--shadow-xs);
}

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

.menu-toggle:focus-visible,
.nav-link:focus-visible,
.site-logo:focus-visible,
.btn:focus-visible {
  outline: 3px solid rgba(255, 107, 53, 0.45);
  outline-offset: 2px;
}

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 50px;
  transition: all var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.32);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(255, 107, 53, 0.42);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.8);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  transform: translateY(-3px);
}

.btn-ghost {
  background: var(--primary-soft);
  color: var(--primary);
}

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

/* ===== Hero / Banner ===== */
.page-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  background: linear-gradient(120deg, #141b2d 0%, #22314f 60%, #2a4a78 100%);
  overflow: hidden;
  padding: 80px 0;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
  opacity: 0.26;
  transform: scale(1.02);
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(20, 27, 45, 0.92) 20%, rgba(20, 27, 45, 0.55) 70%, rgba(255, 107, 53, 0.25) 100%);
}

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

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 18px;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

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

.hero-breadcrumb .sep {
  opacity: 0.5;
}

.page-hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.page-hero .hero-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 30px;
}

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

/* ===== 特色板块 ===== */
.feature-section {
  background: var(--bg-white);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 44px;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
  transition: transform var(--transition);
}

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

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== 专题卡片 ===== */
.topic-section {
  background: var(--bg);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-top: 44px;
}

.topic-card {
  display: flex;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

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

.topic-media {
  width: 40%;
  min-height: 220px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.topic-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.topic-card:hover .topic-media img {
  transform: scale(1.07);
}

.topic-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.25), transparent 60%);
}

.topic-content {
  padding: 28px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

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

.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 4px 12px;
  border-radius: 30px;
  letter-spacing: 0.4px;
}

.tag-dark {
  background: var(--secondary);
  color: #fff;
}

.tag-accent {
  background: rgba(255, 209, 102, 0.2);
  color: #a87900;
}

.topic-content h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.topic-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

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

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

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

.topic-link:hover i {
  transform: translateX(5px);
}

/* ===== 排行榜 ===== */
.rank-section {
  background: var(--bg-white);
}

.rank-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  margin-top: 44px;
  align-items: center;
}

.rank-list-cover {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  line-height: 0;
}

.rank-list-cover img {
  width: 100%;
}

.rank-list-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 27, 45, 0.4), transparent 45%);
}

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

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 16px 20px;
  border: 1px solid transparent;
  transition: all var(--transition);
}

.rank-item:hover {
  background: var(--bg-white);
  border-color: var(--primary-soft);
  box-shadow: var(--shadow-sm);
  transform: translateX(6px);
}

.rank-num {
  font-size: 26px;
  font-weight: 900;
  color: var(--primary);
  font-style: italic;
  width: 46px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rank-score {
  font-size: 13px;
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

.score-bar {
  flex: 1;
  height: 6px;
  background: #e9ecf3;
  border-radius: 8px;
  overflow: hidden;
  max-width: 140px;
}

.score-bar-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 8px;
}

.rank-badge {
  font-size: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 500;
  flex-shrink: 0;
}

/* ===== 资讯时间线 ===== */
.news-section {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.news-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  margin-top: 44px;
}

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

.news-item {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 22px 24px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary);
  opacity: 0;
  transition: opacity var(--transition);
}

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

.news-item:hover::before {
  opacity: 1;
}

.news-item-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

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

.news-item h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  transition: color var(--transition);
}

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

.news-item p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.7;
}

.news-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.news-side-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 160px;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  color: #fff;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.news-side-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), rgba(0,0,0,0.15) 60%, rgba(0,0,0,0.1));
}

.news-side-card .side-content {
  position: relative;
  z-index: 2;
}

.news-side-card .side-tag {
  display: inline-block;
  background: var(--primary);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
  font-weight: 600;
}

.news-side-card h4 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
}

/* ===== 流程 ===== */
.process-section {
  position: relative;
  background: var(--bg-deep);
  padding: var(--space-section) 0;
  color: #fff;
  overflow: hidden;
}

.process-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
  opacity: 0.28;
}

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

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

.process-section .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

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

.process-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  backdrop-filter: blur(6px);
  transition: transform var(--transition), background var(--transition);
  position: relative;
}

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

.step-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary);
  opacity: 0.9;
  line-height: 1;
  margin-bottom: 16px;
  font-style: italic;
}

.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
}

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

.faq-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 40px;
  margin-top: 44px;
  align-items: start;
}

.faq-intro {
  background: var(--primary-soft);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: sticky;
  top: 96px;
}

.faq-intro h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--secondary);
}

.faq-intro p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

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

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

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

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

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

.faq-answer-inner {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 0;
}

.faq-item.open .faq-answer {
  max-height: 400px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(120deg, var(--primary), #ff8c5a 60%, var(--primary-dark));
  overflow: hidden;
  text-align: center;
  color: #fff;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  opacity: 0.18;
  mix-blend-mode: overlay;
}

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

.cta-section h2 {
  font-size: clamp(28px, 4.4vw, 44px);
  font-weight: 800;
  margin-bottom: 14px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.12);
}

.cta-section p {
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 30px;
  color: rgba(255, 255, 255, 0.92);
}

.cta-btn {
  background: #fff;
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  padding: 15px 36px;
  border-radius: 50px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.18);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(0,0,0,0.24);
  color: var(--primary-dark);
}

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

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .site-logo {
  color: #fff;
  font-size: 26px;
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand .site-logo span {
  color: var(--primary);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.55);
  max-width: 340px;
  margin-top: 6px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}

.footer-col a {
  display: flex;
  align-items: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  padding: 6px 0;
  transition: color var(--transition), transform var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

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

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

  .rank-wrap,
  .news-layout,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .rank-list-cover {
    max-height: 300px;
  }

  .rank-list-cover img {
    width: 100%;
    object-fit: cover;
  }

  .faq-intro {
    position: static;
  }
}

@media (max-width: 900px) {
  .site-header .header-inner {
    display: flex;
    flex-wrap: wrap;
    min-height: 64px;
    padding: 10px 0;
    align-items: center;
    justify-content: space-between;
  }

  .menu-toggle {
    display: inline-flex;
    order: 0;
  }

  .logo-wrap {
    order: 2;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .nav-left,
  .nav-right {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: #fff;
    border-radius: var(--radius);
    padding: 12px;
    margin-top: 10px;
    box-shadow: var(--shadow-md);
  }

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

  .nav-link {
    white-space: normal;
  }

  .nav-cta {
    margin-top: 4px;
    text-align: center;
  }

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

  .section {
    --space-section: 60px;
  }

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

  .topic-card {
    flex-direction: column;
  }

  .topic-media {
    width: 100%;
    height: 200px;
  }
}

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

  .page-hero {
    min-height: 320px;
    padding: 60px 0;
  }

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

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

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

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

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

  .news-item {
    padding: 18px;
  }

  .rank-item {
    flex-wrap: wrap;
    gap: 10px;
  }

  .score-bar {
    max-width: 80px;
  }

  .faq-question {
    font-size: 15px;
  }
}