/* roulang page: index */
:root {
  --primary: #dc2626;
  --primary-dark: #991b1b;
  --primary-gradient: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
  --accent: #f97316;
  --accent-light: #feeddd;
  --dark: #0f172a;
  --dark-soft: #1e293b;
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --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, 0.14);
  --shadow-primary: 0 10px 30px rgba(220, 38, 38, 0.25);
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 32px;
  --spacing-lg: 64px;
  --spacing-xl: 96px;
  --container-max: 1280px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}
a:hover {
  color: var(--primary);
}
button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}
ul, ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
/* 导航栏 */
.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);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--primary-gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  box-shadow: var(--shadow-primary);
}
.logo-text {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.logo-text span {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--text-muted);
  -webkit-text-fill-color: var(--text-muted);
  background: none;
  margin-top: 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: all 0.25s ease;
  position: relative;
}
.main-nav a:hover {
  color: var(--primary);
  background: rgba(220, 38, 38, 0.06);
}
.main-nav a.active {
  color: var(--primary);
  background: rgba(220, 38, 38, 0.08);
  font-weight: 600;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-search {
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 4px 6px 4px 16px;
  transition: all 0.3s ease;
  width: 200px;
}
.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
  width: 240px;
}
.header-search input {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text);
  width: 100%;
}
.header-search input::placeholder {
  color: var(--text-light);
}
.header-search button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.25s ease;
}
.header-search button:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-primary);
}
.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--primary-gradient);
  color: #fff;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-primary);
  white-space: nowrap;
}
.header-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(220, 38, 38, 0.32);
  color: #fff;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.15rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}
.nav-toggle:hover {
  color: var(--primary);
  border-color: var(--primary);
}
/* 移动导航面板 */
.mobile-nav {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  padding: 16px 24px 24px;
  z-index: 99;
}
.mobile-nav.open {
  display: block;
}
.mobile-nav a {
  display: block;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--bg-alt);
}
.mobile-nav a:last-child {
  border-bottom: none;
}
.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--primary);
  background: rgba(220, 38, 38, 0.05);
}
.mobile-nav .header-btn {
  margin-top: 16px;
  justify-content: center;
  width: 100%;
}
/* Hero区域 */
.hero {
  position: relative;
  padding: 90px 0 110px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #334155 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  z-index: 0;
}
.hero::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(220, 38, 38, 0.18) 0%, transparent 70%);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero-content {
  animation: fadeUp 0.8s ease both;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(220, 38, 38, 0.15);
  border: 1px solid rgba(220, 38, 38, 0.3);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fca5a5;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.hero-badge i {
  font-size: 0.7rem;
  color: #f87171;
}
.hero-title {
  font-size: 3.4rem;
  line-height: 1.15;
  font-weight: 800;
  color: #fff;
  letter-spacing: -2px;
  margin-bottom: 20px;
}
.hero-title .highlight {
  background: linear-gradient(135deg, #f87171 0%, #fb923c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.15rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.75);
  max-width: 520px;
  margin-bottom: 32px;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--primary-gradient);
  color: #fff;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(220, 38, 38, 0.35);
  color: #fff;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  transform: translateY(-3px);
}
.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-stat {
  text-align: left;
}
.hero-stat .num {
  font-size: 1.9rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  display: block;
}
.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}
.hero-visual {
  position: relative;
  animation: fadeUp 0.8s ease 0.2s both;
}
.hero-card-stack {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-card-main {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 36px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
.hero-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.hero-card-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-card-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(220, 38, 38, 0.3);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fca5a5;
}
.hero-card-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #f87171;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}
.hero-card-sport {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}
.hero-sport-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
}
.hero-sport-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}
.hero-sport-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.hero-sport-icon.green {
  background: linear-gradient(135deg, #22c55e, #15803d);
}
.hero-sport-icon.blue {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}
.hero-sport-icon.purple {
  background: linear-gradient(135deg, #a855f7, #7e22ce);
}
.hero-sport-info {
  min-width: 0;
}
.hero-sport-name {
  font-size: 0.85rem;
  color: #fff;
  font-weight: 600;
  white-space: nowrap;
}
.hero-sport-meta {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}
.hero-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-card-footer .date {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}
.hero-card-footer .view-btn {
  font-size: 0.8rem;
  color: #f87171;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
/* 板块通用 */
.section {
  padding: var(--spacing-xl) 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 44px;
}
.section-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.25;
  margin-bottom: 8px;
}
.section-title .accent {
  color: var(--primary);
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
}
.section-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  padding: 8px 0;
  white-space: nowrap;
}
.section-link:hover {
  gap: 14px;
  color: var(--primary-dark);
}
/* 分类卡片 */
.cat-section {
  position: relative;
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  display: block;
  min-height: 300px;
}
.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.cat-card-img {
  height: 190px;
  overflow: hidden;
  position: relative;
}
.cat-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.cat-card:hover .cat-card-img img {
  transform: scale(1.05);
}
.cat-card-img::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.25) 0%, transparent 60%);
}
.cat-card-icon {
  position: absolute;
  bottom: -18px;
  left: 24px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: var(--shadow-primary);
  z-index: 2;
  border: 3px solid #fff;
}
.cat-card-body {
  padding: 32px 24px 24px;
}
.cat-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}
.cat-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}
.cat-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-light);
}
.cat-card-meta i {
  margin-right: 4px;
}
/* 最新资讯列表 */
.latest-section {
  position: relative;
}
.latest-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 36px;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  display: flex;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.news-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
  border-color: var(--border-strong);
}
.news-item-img {
  width: 110px;
  height: 82px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}
.news-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-item-tag {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(220, 38, 38, 0.9);
  color: #fff;
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.news-item-body {
  flex: 1;
  min-width: 0;
}
.news-item-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-light);
}
.news-item-meta .cat {
  color: var(--primary);
  font-weight: 600;
}
/* 榜单侧栏 */
.sidebar-rank {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.sidebar-rank::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 38, 38, 0.3) 0%, transparent 70%);
}
.sidebar-rank-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-rank-title i {
  color: #f87171;
}
.rank-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.rank-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 10px;
  border-radius: 10px;
  transition: background 0.25s ease;
}
.rank-item:hover {
  background: rgba(255, 255, 255, 0.06);
}
.rank-num {
  font-size: 1rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.4);
  width: 28px;
  flex-shrink: 0;
  text-align: center;
}
.rank-item:nth-child(1) .rank-num,
.rank-item:nth-child(2) .rank-num,
.rank-item:nth-child(3) .rank-num {
  color: #f87171;
}
.rank-info {
  flex: 1;
  min-width: 0;
}
.rank-name {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rank-sub {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.5);
}
/* 特色板块 */
.feature-section {
  background: fixed linear-gradient(rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
}
.feature-section .section-title,
.feature-section .section-subtitle {
  color: #fff;
}
.feature-section .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 32px 28px;
  transition: all 0.35s ease;
}
.feature-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-6px);
  border-color: rgba(220, 38, 38, 0.5);
}
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 20px;
  box-shadow: var(--shadow-primary);
}
.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
}
/* 数据区块 */
.data-section {
  position: relative;
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.data-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.data-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.data-card:hover::before {
  opacity: 1;
}
.data-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.data-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(220, 38, 38, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin: 0 auto 18px;
}
.data-num {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.data-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 8px;
}
/* 流程板块 */
.process-section {
  background: var(--bg-alt);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}
.process-grid::before {
  content: "";
  position: absolute;
  top: 36px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}
.process-step {
  position: relative;
  text-align: center;
  padding: 0 10px;
}
.process-num {
  position: relative;
  z-index: 1;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-muted);
  transition: all 0.3s ease;
}
.process-step:hover .process-num {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}
.process-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.process-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}
/* 内容卡片 */
.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.content-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.35s ease;
  display: block;
}
.content-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.content-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.content-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.content-card:hover .content-card-img img {
  transform: scale(1.05);
}
.content-card-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.75);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  backdrop-filter: blur(8px);
}
.content-card-body {
  padding: 22px 24px 26px;
}
.content-card-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-card-body p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.content-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-light);
}
/* FAQ */
.faq-section {
  background: var(--bg-alt);
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.4fr 0.6fr;
  gap: 48px;
  align-items: start;
}
.faq-intro h2 {
  font-size: 2rem;
  margin-bottom: 16px;
  line-height: 1.3;
}
.faq-intro p {
  color: var(--text-muted);
  margin-bottom: 24px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.25s ease;
}
.faq-question i {
  flex-shrink: 0;
  color: var(--primary);
  font-size: 0.9rem;
  transition: transform 0.3s ease;
}
.faq-item.active .faq-question {
  color: var(--primary);
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.8;
}
/* CTA */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, #7f1d1d 0%, #b91c1c 60%, #ea580c 100%);
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.15;
  mix-blend-mode: overlay;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
}
.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: #fff;
  color: var(--primary);
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  color: var(--primary-dark);
}
.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  cursor: pointer;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-3px);
  color: #fff;
}
/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo-text {
  font-size: 1.5rem;
  margin-bottom: 16px;
  display: inline-block;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.55);
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: all 0.3s ease;
}
.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}
.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-links a i {
  font-size: 0.6rem;
  color: #f87171;
}
.footer-contact p {
  font-size: 0.88rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i {
  color: #f87171;
  width: 18px;
}
.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.35);
}
.footer-bottom .footer-links-mini {
  display: flex;
  gap: 20px;
}
.footer-bottom .footer-links-mini a {
  color: rgba(255, 255, 255, 0.35);
  transition: color 0.25s ease;
}
.footer-bottom .footer-links-mini a:hover {
  color: #fff;
}
/* 响应式断点 */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.6rem;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-card-main {
    max-width: 500px;
    margin: 0 auto;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .latest-layout {
    grid-template-columns: 1fr;
  }
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  .process-grid::before {
    display: none;
  }
  .faq-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .header-actions .header-search {
    display: none;
  }
  .header-btn {
    padding: 10px 16px;
    font-size: 0.85rem;
  }
}
@media (max-width: 768px) {
  .main-nav, .header-actions .header-btn {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .section {
    --spacing-xl: 56px;
  }
  .section-title {
    font-size: 1.6rem;
  }
  .hero {
    padding-top: 60px;
    padding-bottom: 70px;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-stats {
    gap: 20px;
  }
  .hero-card-main {
    padding: 24px;
  }
  .hero-card-sport {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 520px) {
  .cat-grid {
    grid-template-columns: 1fr;
  }
  .content-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .data-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .news-item {
    flex-direction: column;
  }
  .news-item-img {
    width: 100%;
    height: 160px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f4a261;
            --secondary: #2a9d8f;
            --accent: #f8961e;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-dark: #1d3557;
            --text: #212529;
            --text-weak: #6c757d;
            --text-light: #f8f9fa;
            --border: #e9ecef;
            --border-light: #f1f3f5;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.1);
            --transition: 0.3s ease;
            --container-w: 1280px;
            --header-h: 76px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(230,57,70,0.25);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            line-height: 1.1;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo-text span {
            display: block;
            font-size: 10px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--text-weak);
            text-transform: uppercase;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .main-nav a:hover {
            background: var(--border-light);
            color: var(--primary);
        }
        .main-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(230,57,70,0.3);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 50px;
            padding: 4px 4px 4px 16px;
            transition: var(--transition);
            border: 1px solid transparent;
            width: 220px;
        }
        .header-search:focus-within {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(230,57,70,0.1);
        }
        .header-search input {
            background: transparent;
            font-size: 14px;
            flex: 1;
            color: var(--text);
        }
        .header-search button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 13px;
        }
        .header-search button:hover {
            background: var(--primary-dark);
        }
        .header-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(230,57,70,0.3);
        }
        .header-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.4);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: var(--border-light);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }
        .page-hero {
            position: relative;
            padding: 120px 0 80px;
            background: linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.45)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(0,0,0,0.6) 0%, transparent 80%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.25);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-title {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #f4a261, #f8961e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            opacity: 0.9;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230,57,70,0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230,57,70,0.45);
        }
        .btn-outline {
            background: rgba(255,255,255,0.1);
            color: #fff;
            border-color: rgba(255,255,255,0.4);
            backdrop-filter: blur(8px);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.2);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .page-section {
            padding: 100px 0;
        }
        .page-section:nth-child(even) {
            background: var(--bg-alt);
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 60px;
        }
        .section-header.left {
            text-align: left;
            margin-left: 0;
        }
        .section-tag {
            display: inline-block;
            background: linear-gradient(135deg, rgba(230,57,70,0.1), rgba(248,150,30,0.1));
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            border: 1px solid rgba(230,57,70,0.15);
        }
        .section-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .feature-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            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), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(230,57,70,0.1), rgba(248,150,30,0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .feature-card p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .news-card-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.1);
        }
        .news-card-cat {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(230,57,70,0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            backdrop-filter: blur(8px);
        }
        .news-card-body {
            padding: 24px;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
        }
        .news-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .news-card:hover h3 {
            color: var(--primary);
        }
        .news-card p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-top: 16px;
            transition: var(--transition);
        }
        .news-card-link i {
            transition: transform var(--transition);
        }
        .news-card-link:hover i {
            transform: translateX(6px);
        }
        .rank-section {
            background: var(--bg-dark);
            color: #fff;
        }
        .rank-section .section-title {
            color: #fff;
        }
        .rank-section .section-desc {
            color: rgba(255,255,255,0.7);
        }
        .rank-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 40px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius);
            padding: 20px 24px;
            transition: var(--transition);
        }
        .rank-item:hover {
            background: rgba(255,255,255,0.1);
            transform: translateX(6px);
        }
        .rank-num {
            font-size: 28px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            min-width: 50px;
        }
        .rank-info {
            flex: 1;
        }
        .rank-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .rank-info p {
            color: rgba(255,255,255,0.6);
            font-size: 13px;
        }
        .rank-tag {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(248,150,30,0.2);
            color: var(--accent);
            white-space: nowrap;
        }
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin: 60px 0 0;
        }
        .data-item {
            text-align: center;
            background: var(--bg-alt);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 40px 20px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .data-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .data-num {
            font-size: 48px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
            line-height: 1.2;
        }
        .data-label {
            font-size: 15px;
            color: var(--text-weak);
            font-weight: 500;
        }
        .timeline-section {
            background: var(--bg-alt);
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            transform: translateX(-50%);
        }
        .timeline-item {
            position: relative;
            padding: 24px 0;
            width: 50%;
            padding-right: 40px;
        }
        .timeline-item:nth-child(even) {
            margin-left: 50%;
            padding-right: 0;
            padding-left: 40px;
        }
        .timeline-dot {
            position: absolute;
            top: 32px;
            right: -8px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 4px rgba(230,57,70,0.2);
        }
        .timeline-item:nth-child(even) .timeline-dot {
            right: auto;
            left: -8px;
        }
        .timeline-content {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .timeline-date {
            font-size: 13px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-content p {
            font-size: 14px;
            color: var(--text-weak);
        }
        .faq-section {
            background: var(--bg);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 28px 32px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .faq-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
        }
        .faq-item h4::before {
            content: 'Q';
            width: 24px;
            height: 24px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
        }
        .faq-item p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
            margin-left: 34px;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            text-align: center;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60%;
            left: -20%;
            width: 300px;
            height: 300px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-title {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-desc {
            font-size: 18px;
            opacity: 0.95;
            max-width: 600px;
            margin: 0 auto 36px;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: rgba(255,255,255,0.9);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.2);
        }
        .btn-ghost {
            background: rgba(255,255,255,0.1);
            color: #fff;
            border: 2px solid rgba(255,255,255,0.4);
        }
        .btn-ghost:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .site-footer {
            background: #fafafa;
            border-top: 1px solid var(--border-light);
            padding: 64px 0 0;
        }
        .site-footer .container {
            max-width: var(--container-w);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border-light);
        }
        .footer-brand .logo-text {
            font-size: 24px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            transition: var(--transition);
            font-size: 16px;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: var(--text-weak);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-contact p {
            color: var(--text-weak);
            font-size: 14px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact p i {
            color: var(--primary);
            width: 16px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom span {
            color: var(--text-weak);
            font-size: 14px;
        }
        .footer-links-mini {
            display: flex;
            gap: 24px;
        }
        .footer-links-mini a {
            color: var(--text-weak);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links-mini a:hover {
            color: var(--primary);
        }
        @media (max-width: 1024px) {
            .header-actions {
                gap: 8px;
            }
            .header-search {
                width: 180px;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 40px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline::before {
                left: 8px;
            }
            .timeline-item,
            .timeline-item:nth-child(even) {
                width: 100%;
                padding-left: 40px;
                padding-right: 0;
                margin-left: 0;
            }
            .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 0;
                right: auto;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                position: relative;
            }
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 16px 0;
            }
            .header-actions {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 12px 40px rgba(0,0,0,0.1);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .page-hero {
                padding: 80px 0 60px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .page-section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 30px;
            }
            .news-grid, .feature-grid {
                grid-template-columns: 1fr;
            }
            .rank-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .cta-title {
                font-size: 30px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-text span {
                font-size: 9px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links-mini {
                justify-content: center;
                gap: 16px;
            }
            .page-hero {
                background-attachment: fixed;
            }
        }
        @media (max-width: 600px) {
            .header-actions {
                display: none;
            }
        }

/* roulang page: article */
:root {
  --primary: #0b1f3a;
  --primary-light: #16304f;
  --primary-soft: #e8edf3;
  --accent: #f0703a;
  --accent-hover: #d9541f;
  --accent-soft: #fff1e6;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --text: #1b2533;
  --text-light: #5c6b7a;
  --text-lighter: #8a99a8;
  --border: #e6ebf0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 30, 50, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 30, 50, 0.10);
  --shadow-lg: 0 20px 48px rgba(15, 30, 50, 0.14);
  --transition: 0.25s ease;
  --container-w: 1200px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

/* ===== 通用按钮 ===== */
.btn-primary, .btn-light, .btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1.2;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #ff8a50 100%);
  color: #fff;
  box-shadow: 0 6px 18px rgba(240, 112, 58, 0.32);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(240, 112, 58, 0.42);
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(240, 112, 58, 0.3); }
.btn-primary:focus-visible, .btn-light:focus-visible, .btn-outline:focus-visible { outline: 3px solid rgba(240, 112, 58, 0.4); outline-offset: 2px; }
.btn-light {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(6px);
}
.btn-light:hover { background: rgba(255, 255, 255, 0.28); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* ===== 站点头部 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(9, 24, 46, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff8a50 100%);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(240, 112, 58, 0.4);
}
.logo-text { color: #fff; font-size: 20px; font-weight: 800; letter-spacing: 0.5px; line-height: 1.2; }
.logo-text span { display: block; font-size: 9px; font-weight: 600; letter-spacing: 2.5px; color: rgba(255, 255, 255, 0.5); }
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 2px;
  transition: color var(--transition);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  border-radius: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { transform: scaleX(0.7); }
.main-nav a.active { color: #fff; font-weight: 700; }
.main-nav a.active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search { display: flex; align-items: center; background: rgba(255, 255, 255, 0.1); border-radius: 30px; padding: 4px 6px 4px 16px; border: 1px solid rgba(255, 255, 255, 0.08); transition: all var(--transition); }
.header-search:focus-within { background: rgba(255, 255, 255, 0.16); border-color: rgba(255, 255, 255, 0.25); box-shadow: 0 0 0 3px rgba(240, 112, 58, 0.18); }
.header-search input { background: transparent; border: none; outline: none; color: #fff; width: 120px; font-size: 13px; }
.header-search input::placeholder { color: rgba(255, 255, 255, 0.45); }
.header-search button { width: 32px; height: 32px; border-radius: 50%; border: none; background: var(--accent); color: #fff; cursor: pointer; transition: background var(--transition); display: flex; align-items: center; justify-content: center; }
.header-search button:hover { background: var(--accent-hover); }
.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 30px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
}
.header-btn:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(240, 112, 58, 0.35); }
.nav-toggle { display: none; background: transparent; border: none; color: #fff; font-size: 22px; cursor: pointer; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; transition: background var(--transition); }
.nav-toggle:hover { background: rgba(255, 255, 255, 0.1); }

/* ===== 文章页 Hero ===== */
.article-hero {
  position: relative;
  padding: 88px 0 64px;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-color: var(--primary);
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(8, 20, 38, 0.95) 0%, rgba(11, 31, 58, 0.82) 50%, rgba(11, 31, 58, 0.55) 100%);
}
.article-hero::after {
  content: "";
  position: absolute;
  right: -120px; bottom: -140px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 112, 58, 0.28) 0%, transparent 70%);
}
.article-hero .container { position: relative; z-index: 2; }
.article-hero-inner { display: grid; grid-template-columns: 1fr 320px; gap: 60px; align-items: center; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 26px; font-size: 13px; color: rgba(255, 255, 255, 0.6); }
.breadcrumb a { color: rgba(255, 255, 255, 0.7); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 11px; opacity: 0.6; }
.breadcrumb span { color: rgba(255, 255, 255, 0.92); }
.article-hero-title { font-size: 36px; line-height: 1.35; font-weight: 800; color: #fff; letter-spacing: 0.5px; margin-bottom: 20px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; color: rgba(255, 255, 255, 0.72); font-size: 14px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta i { color: var(--accent); }
.hero-meta .divider { width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, 0.35); }
.hero-meta .cat-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  background: rgba(240, 112, 58, 0.2);
  border: 1px solid rgba(240, 112, 58, 0.4);
  color: #ffb391;
  font-size: 13px;
  font-weight: 600;
}
.article-hero-visual { display: flex; justify-content: center; }
.hero-visual-badge {
  position: relative;
  width: 220px; height: 220px;
  border-radius: 40px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transform: rotate(3deg);
  transition: transform 0.4s ease;
}
.hero-visual-badge:hover { transform: rotate(0deg) scale(1.04); }
.hero-visual-badge i { font-size: 44px; color: var(--accent); margin-bottom: 4px; }
.hero-visual-badge span { font-size: 16px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.hero-visual-badge strong { font-size: 11px; font-weight: 500; color: rgba(255, 255, 255, 0.55); letter-spacing: 2px; }

/* ===== 正文 + 侧边栏布局 ===== */
.article-main { padding: 56px 0 72px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 36px; align-items: start; }
.article-content-wrap { min-width: 0; }
.article-cover {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 34px;
  box-shadow: var(--shadow-md);
}
.article-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.article-cover:hover img { transform: scale(1.02); }

/* ===== 文章正文排版 ===== */
.article-body-content { background: var(--card-bg); border-radius: var(--radius); padding: 40px 42px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); }
.article-body-content p { margin-bottom: 1.6em; font-size: 16px; line-height: 2; color: var(--text); }
.article-body-content h2 { font-size: 24px; font-weight: 800; color: var(--primary); margin: 1.8em 0 0.8em; padding-left: 16px; border-left: 4px solid var(--accent); line-height: 1.4; }
.article-body-content h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin: 1.6em 0 0.7em; line-height: 1.4; }
.article-body-content h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin: 1.4em 0 0.6em; }
.article-body-content ul { margin: 0 0 1.6em 0; }
.article-body-content ul li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: 16px; line-height: 1.9; color: var(--text); }
.article-body-content ul li::before { content: ""; position: absolute; left: 4px; top: 13px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.article-body-content ol { margin: 0 0 1.6em 0; counter-reset: listNum; }
.article-body-content ol li { position: relative; padding-left: 36px; margin-bottom: 10px; font-size: 16px; line-height: 1.9; counter-increment: listNum; }
.article-body-content ol li::before { content: counter(listNum); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 6px; background: var(--primary-soft); color: var(--primary); font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.article-body-content blockquote { margin: 1.8em 0; padding: 18px 24px; background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: 0 12px 12px 0; color: #8a4a2c; font-size: 15px; line-height: 1.8; }
.article-body-content blockquote p { margin-bottom: 0; color: inherit; }
.article-body-content img { border-radius: 12px; margin: 1.8em 0; box-shadow: var(--shadow-sm); }
.article-body-content pre { background: #111c2c; color: #e8ecf2; padding: 20px 24px; border-radius: 12px; overflow-x: auto; font-size: 14px; line-height: 1.7; margin: 1.6em 0; }
.article-body-content code { background: var(--primary-soft); color: var(--primary); padding: 2px 8px; border-radius: 6px; font-size: 14px; }
.article-body-content pre code { background: transparent; color: inherit; padding: 0; }
.article-body-content table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 15px; }
.article-body-content table th { background: var(--primary); color: #fff; padding: 10px 16px; text-align: left; font-weight: 600; }
.article-body-content table td { padding: 10px 16px; border-bottom: 1px solid var(--border); }
.article-body-content table tr:hover td { background: var(--bg); }
.empty-content { text-align: center; padding: 48px 20px; }
.empty-content i { font-size: 52px; color: var(--text-lighter); margin-bottom: 18px; }
.empty-content p { font-size: 16px; color: var(--text-light); margin-bottom: 24px; }

/* ===== 文章标签/分享 ===== */
.article-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.article-tags a { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; background: var(--primary-soft); border-radius: 20px; font-size: 13px; color: var(--primary); transition: all var(--transition); }
.article-tags a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.article-share { display: flex; align-items: center; gap: 10px; }
.article-share span { font-size: 13px; color: var(--text-light); }
.share-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--bg); color: var(--text-light); display: flex; align-items: center; justify-content: center; transition: all var(--transition); font-size: 14px; }
.share-btn:hover { background: var(--accent); color: #fff; transform: translateY(-3px); box-shadow: 0 6px 16px rgba(240, 112, 58, 0.3); }

/* ===== 作者卡 ===== */
.author-card {
  display: flex; align-items: center; gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.author-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.author-avatar { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0; box-shadow: 0 4px 12px rgba(11, 31, 58, 0.3); }
.author-info h5 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.author-info p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ===== 侧边栏 ===== */
.article-sidebar { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); padding: 26px; box-shadow: var(--shadow-sm); }
.sidebar-title { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: var(--primary); margin-bottom: 20px; }
.sidebar-title::before { content: ""; width: 4px; height: 18px; border-radius: 4px; background: var(--accent); }
.sidebar-cats li { border-bottom: 1px solid var(--border); }
.sidebar-cats li:last-child { border-bottom: none; }
.sidebar-cats a { display: flex; align-items: center; justify-content: space-between; padding: 14px 4px; font-size: 14px; color: var(--text); transition: all var(--transition); border-radius: 8px; }
.sidebar-cats a:hover { color: var(--accent); padding-left: 10px; background: var(--accent-soft); }
.sidebar-cats a i { color: var(--accent); font-size: 13px; margin-right: 10px; }
.sidebar-cats .count { font-size: 12px; color: var(--text-lighter); background: var(--bg); padding: 2px 10px; border-radius: 20px; }
.hot-list li { display: flex; align-items: flex-start; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border); transition: all var(--transition); }
.hot-list li:last-child { border-bottom: none; padding-bottom: 0; }
.hot-list li:first-child { padding-top: 0; }
.hot-num { font-size: 20px; font-weight: 800; color: var(--border); line-height: 1; margin-top: 2px; min-width: 24px; }
.hot-list li:nth-child(1) .hot-num { color: var(--accent); }
.hot-list li:nth-child(2) .hot-num { color: #f5a623; }
.hot-list li:nth-child(3) .hot-num { color: #7a8ba0; }
.hot-item { flex: 1; }
.hot-item a { font-size: 14px; color: var(--text); line-height: 1.5; font-weight: 500; transition: color var(--transition); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hot-item a:hover { color: var(--accent); }
.hot-item em { display: block; font-style: normal; font-size: 12px; color: var(--text-lighter); margin-top: 4px; }
.sidebar-cover { position: relative; border-radius: var(--radius); overflow: hidden; height: 180px; box-shadow: var(--shadow-md); }
.sidebar-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.sidebar-cover:hover img { transform: scale(1.05); }
.sidebar-cover-content { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8, 18, 34, 0.85) 0%, transparent 70%); display: flex; flex-direction: column; justify-content: flex-end; padding: 20px; color: #fff; }
.sidebar-cover-content strong { font-size: 16px; font-weight: 700; line-height: 1.4; margin-bottom: 4px; }
.sidebar-cover-content span { font-size: 12px; color: rgba(255, 255, 255, 0.7); }

/* ===== 相关推荐 ===== */
.related-section { padding: 64px 0; background: var(--bg); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 32px; }
.section-head h2 { font-size: 28px; font-weight: 800; color: var(--primary); position: relative; }
.section-head h2::after { content: ""; display: block; width: 48px; height: 4px; border-radius: 4px; background: var(--accent); margin-top: 8px; }
.section-head a { font-size: 14px; color: var(--text-light); font-weight: 500; transition: color var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.section-head a:hover { color: var(--accent); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--card-bg); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: all var(--transition); box-shadow: var(--shadow-sm); }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.related-card-cover { height: 180px; overflow: hidden; position: relative; }
.related-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-card-cover img { transform: scale(1.06); }
.related-card-cover .tag { position: absolute; top: 14px; left: 14px; background: rgba(11, 31, 58, 0.85); color: #fff; padding: 4px 12px; border-radius: 20px; font-size: 12px; backdrop-filter: blur(6px); }
.related-card-body { padding: 22px 24px; }
.related-card-body h3 { font-size: 17px; font-weight: 700; color: var(--primary); line-height: 1.5; margin-bottom: 10px; transition: color var(--transition); }
.related-card-body h3 a:hover { color: var(--accent); }
.related-card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-meta { display: flex; align-items: center; gap: 12px; margin-top: 14px; font-size: 12px; color: var(--text-lighter); }

/* ===== CTA ===== */
.cta-section { position: relative; padding: 84px 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; background-color: var(--primary); overflow: hidden; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8, 20, 38, 0.94) 0%, rgba(11, 31, 58, 0.86) 60%, rgba(240, 112, 58, 0.25) 100%); }
.cta-section .container { position: relative; z-index: 2; }
.cta-inner { display: flex; flex-direction: column; align-items: flex-start; max-width: 620px; }
.cta-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(240, 112, 58, 0.18); border: 1px solid rgba(240, 112, 58, 0.4); color: #ffb391; padding: 6px 16px; border-radius: 30px; font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.cta-inner h2 { font-size: 34px; font-weight: 800; color: #fff; line-height: 1.35; margin-bottom: 16px; }
.cta-inner p { font-size: 15px; color: rgba(255, 255, 255, 0.75); line-height: 1.8; margin-bottom: 30px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== 未找到区域 ===== */
.not-found-box { text-align: center; padding: 20px 10px; }
.not-found-box i { font-size: 48px; color: var(--text-lighter); margin-bottom: 14px; }
.not-found-box h2 { font-size: 22px; color: var(--primary); margin-bottom: 10px; }
.not-found-box p { font-size: 15px; color: var(--text-light); margin-bottom: 22px; }
.not-found-box .not-found-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ===== 站点页脚 ===== */
.site-footer { background: #081528; color: rgba(255, 255, 255, 0.7); padding: 64px 0 0; }
.site-footer .logo-text { margin-bottom: 18px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 0.8fr 0.9fr 1.1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.55); margin: 16px 0 20px; max-width: 340px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 38px; height: 38px; border-radius: 50%; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.06); display: flex; align-items: center; justify-content: center; color: rgba(255, 255, 255, 0.6); transition: all var(--transition); }
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); box-shadow: 0 6px 18px rgba(240, 112, 58, 0.3); }
.footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 22px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; border-radius: 3px; background: var(--accent); }
.footer-links { display: flex; flex-direction: column; gap: 4px; }
.footer-links a { padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, 0.55); transition: all var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.footer-links a i { font-size: 11px; color: var(--accent); }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-contact p { font-size: 14px; color: rgba(255, 255, 255, 0.55); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--accent); width: 18px; text-align: center; }
.footer-bottom { padding: 20px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255, 255, 255, 0.4); }
.footer-links-mini { display: flex; gap: 5px; flex-wrap: wrap; }
.footer-links-mini a { color: rgba(255, 255, 255, 0.4); transition: color var(--transition); font-size: 13px; padding: 0 8px; border-right: 1px solid rgba(255, 255, 255, 0.1); }
.footer-links-mini a:last-child { border-right: none; }
.footer-links-mini a:hover { color: #fff; }

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .main-nav { gap: 18px; }
  .header-search input { width: 90px; }
  .article-hero-inner { grid-template-columns: 1fr 240px; gap: 30px; }
  .article-layout { grid-template-columns: 1fr 300px; gap: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .article-hero-inner { grid-template-columns: 1fr; text-align: center; }
  .breadcrumb { justify-content: center; }
  .hero-meta { justify-content: center; }
  .article-hero-visual { display: none; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .sidebar-card:last-child { display: none; }
}
@media (max-width: 768px) {
  .container { padding: 0 18px; }
  .header-inner { height: 66px; }
  .main-nav {
    position: fixed;
    top: 66px; left: 0; right: 0;
    background: rgba(9, 24, 46, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 24px 26px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-130%);
    transition: transform 0.35s ease;
    z-index: 950;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
    pointer-events: none;
  }
  .main-nav.open { transform: translateY(0); pointer-events: auto; }
  .main-nav a { width: 100%; padding: 14px 4px; font-size: 16px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
  .main-nav a::after { display: none; }
  .header-actions { display: none; }
  .nav-toggle { display: flex; }
  .article-hero { padding: 64px 0 48px; }
  .article-hero-title { font-size: 28px; }
  .article-body-content { padding: 28px 24px; }
  .article-body-content p { font-size: 15px; }
  .article-toolbar { flex-direction: column; align-items: flex-start; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-inner { padding: 30px 0; }
  .cta-inner h2 { font-size: 26px; }
}
@media (max-width: 520px) {
  .container { padding: 0 14px; }
  .logo-text { font-size: 17px; }
  .logo-icon { width: 36px; height: 36px; font-size: 18px; border-radius: 10px; }
  .article-hero { padding: 48px 0 36px; }
  .article-hero-title { font-size: 24px; }
  .hero-meta { flex-direction: column; align-items: center; gap: 10px; }
  .article-body-content { padding: 22px 18px; }
  .article-body-content h2 { font-size: 20px; }
  .article-body-content h3 { font-size: 18px; }
  .article-body-content blockquote { padding: 14px 16px; }
  .author-card { flex-direction: column; text-align: center; padding: 24px 18px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .not-found-actions { flex-direction: column; }
  .btn-primary, .btn-light { width: 100%; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn-primary, .cta-actions .btn-light { width: 100%; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --primary: #1e5eff;
  --primary-dark: #0d3fcc;
  --primary-light: #e8f0ff;
  --accent: #ff6b2c;
  --accent-light: #fff3ed;
  --dark: #0f172a;
  --text: #334155;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-light: #f5f8ff;
  --bg-dark: #0b1220;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow: 0 12px 40px rgba(30, 94, 255, 0.08);
  --shadow-hover: 0 24px 60px rgba(2, 16, 43, 0.14);
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --container-w: 1240px;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(2, 16, 43, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 12px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(30, 94, 255, 0.4);
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.logo-text span {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 2px;
  margin-top: 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav a {
  padding: 8px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 999px;
  position: relative;
  white-space: nowrap;
}
.main-nav a:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.main-nav a.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 8px 24px rgba(30, 94, 255, 0.28);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.header-search {
  display: flex;
  align-items: center;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding-left: 14px;
  height: 42px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 94, 255, 0.12);
  background: #fff;
}
.header-search input {
  width: 140px;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
}
.header-search input::placeholder {
  color: var(--text-light);
}
.header-search button {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  color: var(--text-light);
  font-size: 14px;
  transition: var(--transition);
}
.header-search button:hover {
  color: var(--primary);
}
.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), #ff8f4d);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 8px 20px rgba(255, 107, 44, 0.28);
  transition: var(--transition);
}
.header-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 107, 44, 0.36);
}
.nav-toggle {
  display: none;
  font-size: 22px;
  color: var(--dark);
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-toggle:hover {
  background: var(--bg-light);
}

/* ===== 内页 Hero ===== */
.page-hero {
  position: relative;
  padding: 100px 0 96px;
  background: linear-gradient(120deg, #0b1220 0%, #141e33 55%, #1c2a4a 100%);
  overflow: hidden;
  color: #fff;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center 20%;
  opacity: 0.28;
  z-index: 0;
}
.page-hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(30, 94, 255, 0.35) 0%, transparent 70%);
  z-index: 0;
  border-radius: 50%;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  padding: 2px 0;
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb i {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}
.hero-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 999px;
  letter-spacing: 1px;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}
.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 20px;
  max-width: 720px;
}
.page-hero h1 .highlight {
  color: var(--accent);
}
.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 28px rgba(30, 94, 255, 0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(30, 94, 255, 0.4);
}
.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: #fff;
}
.btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-stats .stat {
  display: flex;
  flex-direction: column;
}
.hero-stats .stat-value {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
}
.hero-stats .stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* ===== 通用板块样式 ===== */
.section {
  padding: 100px 0;
}
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}
.section-head .subtitle {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-head p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== 技术方向入口 ===== */
.tech-direction {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
}
.direction-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.direction-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.direction-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.direction-card:hover::before {
  transform: scaleX(1);
}
.direction-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.direction-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.direction-card:hover .direction-icon {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(30, 94, 255, 0.3);
}
.direction-card h3 {
  font-size: 16px;
  color: var(--dark);
  font-weight: 700;
  margin-bottom: 6px;
}
.direction-card p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ===== 精选教程 ===== */
.tutorial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.tutorial-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.tutorial-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.tutorial-cover {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.tutorial-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.tutorial-card:hover .tutorial-cover img {
  transform: scale(1.06);
}
.tutorial-cover .cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(2, 16, 43, 0.5) 100%);
}
.tutorial-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
}
.tutorial-tag.hot {
  background: rgba(255, 107, 44, 0.86);
  border-color: transparent;
}
.tutorial-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.tutorial-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 12px;
}
.tutorial-meta i {
  margin-right: 4px;
  color: var(--primary);
}
.tutorial-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.5;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.tutorial-body h3 a:hover {
  color: var(--primary);
}
.tutorial-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}
.tutorial-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.tutorial-footer .author {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tutorial-footer .author .avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}
.tutorial-footer .read-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tutorial-footer .read-more:hover {
  color: var(--primary-dark);
  gap: 10px;
}
.tutorial-footer .read-more i {
  font-size: 12px;
  transition: var(--transition);
}

/* ===== 训练流程 ===== */
.training-steps {
  background: var(--bg-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.training-steps::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 220px;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}
.training-steps .section-head h2 {
  color: #fff;
}
.training-steps .section-head p {
  color: rgba(255, 255, 255, 0.65);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}
.step-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 32px 28px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
  position: relative;
}
.step-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-6px);
}
.step-num {
  font-size: 42px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 2px var(--primary);
  line-height: 1;
  margin-bottom: 18px;
  font-family: "Arial Black", sans-serif;
}
.step-card:nth-child(2) .step-num {
  -webkit-text-stroke-color: var(--accent);
}
.step-card:nth-child(3) .step-num {
  -webkit-text-stroke-color: #38bdf8;
}
.step-card:nth-child(4) .step-num {
  -webkit-text-stroke-color: #34d399;
}
.step-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.step-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.75;
}
.step-icon {
  position: absolute;
  top: 30px;
  right: 24px;
  font-size: 28px;
  color: rgba(255, 255, 255, 0.15);
  transition: var(--transition);
}
.step-card:hover .step-icon {
  color: rgba(255, 255, 255, 0.5);
  transform: scale(1.15);
}

/* ===== 数据指标 ===== */
.data-showcase {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0;
  color: #fff;
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  text-align: center;
}
.data-item {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.data-item:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-4px);
}
.data-num {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 8px;
  font-family: "Arial Black", sans-serif;
}
.data-num .plus {
  font-size: 24px;
  font-weight: 700;
  margin-left: 2px;
}
.data-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 500;
}
.data-icon {
  display: block;
  margin-bottom: 14px;
  font-size: 26px;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  background: #fff;
  transition: var(--transition);
  overflow: hidden;
}
.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(30, 94, 255, 0.08);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  width: 100%;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-question.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  padding: 0 28px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-answer.open {
  padding: 0 28px 24px;
  max-height: 300px;
}
.faq-answer p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

/* ===== CTA ===== */
.cta-section {
  background: var(--bg-light);
  padding: 90px 0;
}
.cta-box {
  background: linear-gradient(135deg, #0b1220 0%, #16223d 60%, #1e3460 100%);
  border-radius: 24px;
  padding: 64px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(30, 94, 255, 0.5) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -60%;
  left: -5%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.3) 0%, transparent 60%);
  border-radius: 50%;
}
.cta-box .cta-content {
  position: relative;
  z-index: 2;
}
.cta-box h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #ff8f4d);
  color: #fff;
  box-shadow: 0 10px 30px rgba(255, 107, 44, 0.4);
}
.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(255, 107, 44, 0.5);
}
.btn-ghost-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: #fff;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-3px);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: #94a3b8;
  padding: 70px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo-text {
  color: #fff;
  font-size: 24px;
  margin-bottom: 14px;
}
.footer-brand p {
  color: #6b7b92;
  line-height: 1.8;
  margin-bottom: 22px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: #a5b4c8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}
.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 10px;
  position: relative;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: #6b7b92;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  padding: 2px 0;
}
.footer-links a i {
  font-size: 12px;
  color: var(--primary);
}
.footer-links a:hover {
  color: #fff;
  transform: translateX(4px);
}
.footer-contact p {
  color: #6b7b92;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.footer-contact p i {
  color: var(--primary);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 28px;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-bottom span {
  color: #67788e;
  font-size: 13px;
}
.footer-links-mini {
  display: flex;
  gap: 20px;
}
.footer-links-mini a {
  color: #67788e;
  font-size: 13px;
  transition: var(--transition);
}
.footer-links-mini a:hover {
  color: #fff;
}

/* ===== 移动端响应式 ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .main-nav {
    gap: 4px;
  }
  .main-nav a {
    padding: 8px 14px;
    font-size: 14px;
  }
  .header-search {
    display: none;
  }
  .direction-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .tutorial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }
  .container {
    padding: 0 20px;
  }
  .header-inner {
    height: 64px;
  }
  .logo-icon {
    width: 38px;
    height: 38px;
    font-size: 18px;
  }
  .logo-text {
    font-size: 18px;
  }
  .logo-text span {
    font-size: 9px;
  }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(2, 16, 43, 0.12);
    padding: 16px 20px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    z-index: 999;
    align-items: stretch;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
  }
  .main-nav a {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }
  .nav-toggle {
    display: block;
  }
  .header-actions {
    margin-left: 0;
  }
  .header-btn {
    display: none;
  }
  .page-hero {
    padding: 70px 0 64px;
  }
  .page-hero h1 {
    font-size: 34px;
  }
  .page-hero p {
    font-size: 15px;
  }
  .hero-stats {
    gap: 24px;
  }
  .hero-stats .stat-value {
    font-size: 24px;
  }
  .section {
    padding: 70px 0;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .direction-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tutorial-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .cta-box {
    padding: 40px 24px;
  }
  .cta-box h2 {
    font-size: 26px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .footer-links-mini {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .page-hero h1 {
    font-size: 28px;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 18px;
  }
  .direction-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .direction-card {
    padding: 20px 12px;
  }
  .direction-icon {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }
  .direction-card h3 {
    font-size: 14px;
  }
  .data-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .faq-question {
    padding: 18px 18px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 18px;
  }
  .faq-answer.open {
    padding: 0 18px 18px;
  }
}

/* ===== 焦点可访问性 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(30, 94, 255, 0.3);
  outline-offset: 2px;
  border-radius: 4px;
}

/* roulang page: category3 */
/* ========== 设计变量 ========== */
        :root {
            --pri-dark: #0b1222;
            --pri: #131f35;
            --pri-light: #1f3048;
            --acc: #ff6b35;
            --acc-dark: #e8541c;
            --acc-soft: #fff4ee;
            --gold: #f8b531;
            --green: #22c55e;
            --bg: #f1f5f9;
            --card: #fff;
            --text: #16213a;
            --text-weak: #6b7b92;
            --line: #e2e9f2;
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 26px;
            --shadow-sm: 0 2px 12px rgba(11, 18, 34, .06);
            --shadow-md: 0 10px 34px rgba(11, 18, 34, .09);
            --shadow-lg: 0 24px 70px rgba(11, 18, 34, .14);
            --tr: .3s cubic-bezier(.4, 0, .2, 1);
            --w: 1200px;
        }

        /* ========== Reset & Base ========== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; }
        ul, ol { list-style: none; }
        button { font: inherit; border: none; background: none; cursor: pointer; }
        input, textarea { font: inherit; }

        /* ========== 工具类 ========== */
        .container { width: 100%; max-width: var(--w); margin: 0 auto; padding: 0 24px; }
        .section { padding: 100px 0; position: relative; }
        .section-alt { background: #fff; }
        .section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
        .section-head .tag { display: inline-flex; align-items: center; gap: 6px; background: var(--acc-soft); color: var(--acc); font-size: 13px; font-weight: 700; padding: 6px 18px; border-radius: 50px; letter-spacing: 1px; margin-bottom: 18px; }
        .section-head h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; color: var(--text); letter-spacing: -1px; }
        .section-head p { color: var(--text-weak); font-size: 16px; margin-top: 14px; }
        .badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; padding: 6px 16px; border-radius: 50px; letter-spacing: 1px; }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 60px;
            font-size: 15px;
            font-weight: 700;
            transition: all var(--tr);
            white-space: nowrap;
        }
        .btn-primary { background: var(--acc); color: #fff; box-shadow: 0 8px 24px rgba(255, 107, 53, .3); }
        .btn-primary:hover { background: var(--acc-dark); transform: translateY(-2px); box-shadow: 0 14px 32px rgba(255, 107, 53, .35); }
        .btn-outline { border: 2px solid rgba(255, 255, 255, .6); color: #fff; }
        .btn-outline:hover { background: rgba(255, 255, 255, .1); transform: translateY(-2px); }
        .btn-dark-outline { border: 2px solid var(--line); color: var(--text); }
        .btn-dark-outline:hover { border-color: var(--acc); color: var(--acc); transform: translateY(-2px); }
        .btn:focus-visible { outline: 3px solid rgba(255, 107, 53, .4); outline-offset: 2px; }

        /* ========== Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 18, 34, .88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            transition: box-shadow var(--tr);
        }
        .site-header.scrolled { box-shadow: 0 8px 30px rgba(0, 0, 0, .3); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
        .logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
        .logo-icon {
            width: 42px; height: 42px; border-radius: 12px;
            background: linear-gradient(135deg, var(--acc), #ff9a62);
            color: #fff; display: flex; align-items: center; justify-content: center;
            font-size: 22px; font-weight: 900;
            box-shadow: 0 4px 16px rgba(255, 107, 53, .4);
        }
        .logo-text { font-size: 18px; font-weight: 800; color: #fff; line-height: 1.2; letter-spacing: .5px; }
        .logo-text span { display: block; font-size: 9px; letter-spacing: 3px; color: rgba(255, 255, 255, .45); font-weight: 500; }
        .main-nav { display: flex; align-items: center; gap: 4px; }
        .main-nav a {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 9px 18px; border-radius: 50px;
            font-size: 14px; font-weight: 600;
            color: rgba(255, 255, 255, .7);
            transition: all var(--tr);
        }
        .main-nav a:hover { color: #fff; background: rgba(255, 255, 255, .08); }
        .main-nav a.active { color: var(--acc); background: rgba(255, 107, 53, .14); }
        .main-nav a.active::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--acc); }
        .header-actions { display: flex; align-items: center; gap: 10px; }
        .header-search { display: flex; align-items: center; background: rgba(255, 255, 255, .08); border-radius: 50px; padding: 4px 6px 4px 18px; transition: background var(--tr); }
        .header-search:focus-within { background: rgba(255, 255, 255, .14); }
        .header-search input { background: transparent; border: none; outline: none; color: #fff; font-size: 13px; width: 120px; transition: width var(--tr); }
        .header-search input::placeholder { color: rgba(255, 255, 255, .4); }
        .header-search input:focus { width: 150px; }
        .header-search button { width: 34px; height: 34px; border-radius: 50px; background: var(--acc); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; transition: background var(--tr); }
        .header-search button:hover { background: var(--acc-dark); }
        .header-btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 10px 22px; border-radius: 50px;
            background: var(--acc); color: #fff;
            font-size: 13px; font-weight: 700;
            box-shadow: 0 4px 14px rgba(255, 107, 53, .3);
            transition: all var(--tr);
        }
        .header-btn:hover { background: var(--acc-dark); transform: translateY(-1px); }
        .nav-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; background: rgba(255,255,255,.08); color: #fff; font-size: 18px; align-items: center; justify-content: center; }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            padding: 190px 0 110px;
            background:
                linear-gradient(120deg, rgba(8, 15, 30, .92) 0%, rgba(14, 26, 48, .7) 55%, rgba(31, 35, 55, .4) 100%),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -60px; right: -40px;
            width: 420px; height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 107, 53, .25), transparent 70%);
            pointer-events: none;
        }
        .hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 60px; position: relative; z-index: 2; }
        .hero-copy .badge { background: rgba(255, 107, 53, .18); color: var(--acc); margin-bottom: 24px; }
        .hero-copy h1 { font-size: clamp(32px, 5.2vw, 56px); font-weight: 900; line-height: 1.22; letter-spacing: -2px; margin-bottom: 22px; }
        .hero-copy h1 span { color: var(--acc); }
        .hero-copy p { font-size: 17px; color: rgba(255, 255, 255, .78); max-width: 460px; margin-bottom: 34px; }
        .hero-btns { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }
        .hero-meta { display: flex; flex-wrap: wrap; gap: 24px; }
        .hero-meta span { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, .65); }
        .hero-meta i { color: var(--acc); }
        .hero-visual { position: relative; }
        .hero-visual .main-img { border-radius: 24px; box-shadow: 0 30px 80px rgba(0, 0, 0, .4); }
        .float-card {
            position: absolute;
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(10px);
            border-radius: 14px;
            padding: 12px 18px;
            font-size: 13px;
            font-weight: 700;
            color: var(--text);
            box-shadow: 0 12px 40px rgba(0, 0, 0, .2);
            display: flex;
            align-items: center;
            gap: 8px;
            animation: floatY 3.5s ease-in-out infinite;
        }
        .float-card i { color: var(--acc); }
        .float-card.fc-1 { top: 30px; left: -30px; }
        .float-card.fc-2 { bottom: 50px; right: -20px; animation-delay: 1.2s; }
        @keyframes floatY {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        /* ========== Intro 社区介绍 ========== */
        .intro-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 70px; align-items: center; }
        .intro-media { position: relative; }
        .intro-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
        .intro-media::before {
            content: "";
            position: absolute;
            top: -20px; left: -20px;
            width: 120px; height: 120px;
            border: 4px solid var(--acc);
            border-radius: 24px;
            opacity: .3;
            z-index: -1;
        }
        .intro-media .exp-badge {
            position: absolute;
            bottom: 30px; right: -16px;
            background: var(--pri-dark);
            color: #fff;
            border-radius: 16px;
            padding: 20px 26px;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .intro-media .exp-badge strong { font-size: 28px; color: var(--gold); display: block; line-height: 1.2; }
        .intro-media .exp-badge span { font-size: 12px; color: rgba(255, 255, 255, .6); }
        .intro-copy h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.3; margin-bottom: 18px; letter-spacing: -1px; }
        .intro-copy p { color: var(--text-weak); margin-bottom: 20px; }
        .intro-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
        .intro-feat { display: flex; gap: 14px; padding: 18px; background: var(--bg); border-radius: var(--radius-md); transition: all var(--tr); border: 1px solid transparent; }
        .intro-feat:hover { background: #fff; border-color: var(--line); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
        .intro-feat i { width: 40px; height: 40px; border-radius: 12px; background: var(--acc-soft); color: var(--acc); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
        .intro-feat h4 { font-size: 15px; margin-bottom: 2px; }
        .intro-feat p { font-size: 13px; color: var(--text-weak); margin: 0; }

        /* ========== Topics 话题卡片 ========== */
        .topics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .topic-card {
            background: var(--card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--tr);
            border: 1px solid var(--line);
        }
        .topic-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
        .topic-card .topic-media { position: relative; height: 200px; overflow: hidden; }
        .topic-card .topic-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
        .topic-card:hover .topic-media img { transform: scale(1.06); }
        .topic-card .topic-media .t-tag { position: absolute; top: 14px; left: 14px; background: rgba(11, 18, 34, .75); backdrop-filter: blur(8px); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: 50px; }
        .topic-card .topic-body { padding: 26px 24px 22px; }
        .topic-card .topic-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-weak); margin-bottom: 10px; }
        .topic-card .topic-meta span { display: inline-flex; align-items: center; gap: 5px; }
        .topic-card .topic-meta i { color: var(--acc); }
        .topic-card h3 { font-size: 17px; line-height: 1.45; margin-bottom: 8px; transition: color var(--tr); }
        .topic-card h3:hover { color: var(--acc); }
        .topic-card p { font-size: 14px; color: var(--text-weak); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

        /* ========== Stats 数据 ========== */
        .stats-section {
            background: linear-gradient(135deg, var(--pri-dark), var(--pri));
            color: #fff;
            padding: 80px 0;
        }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
        .stat-item { padding: 36px 20px; border-radius: var(--radius-md); background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .06); transition: all var(--tr); }
        .stat-item:hover { background: rgba(255, 255, 255, .08); transform: translateY(-4px); }
        .stat-item i { font-size: 30px; color: var(--acc); margin-bottom: 12px; display: block; }
        .stat-item strong { font-size: 42px; font-weight: 900; display: block; letter-spacing: -1px; }
        .stat-item strong span { color: var(--gold); }
        .stat-item p { font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 4px; }

        /* ========== Timeline 活动 ========== */
        .timeline-box { max-width: 800px; margin: 0 auto; position: relative; }
        .timeline-box::before { content: ""; position: absolute; left: 30px; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--acc), var(--line)); }
        .timeline-item { display: flex; gap: 30px; margin-bottom: 40px; position: relative; }
        .timeline-dot { width: 60px; height: 60px; border-radius: 18px; background: var(--card); box-shadow: var(--shadow-sm); display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--acc); border: 2px solid var(--line); flex-shrink: 0; z-index: 2; }
        .timeline-card { flex: 1; background: var(--card); border-radius: var(--radius-md); padding: 24px 28px; box-shadow: var(--shadow-sm); transition: all var(--tr); }
        .timeline-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .timeline-card .t-date { font-size: 12px; font-weight: 700; color: var(--acc); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
        .timeline-card h3 { font-size: 17px; margin-bottom: 6px; }
        .timeline-card p { font-size: 14px; color: var(--text-weak); }

        /* ========== Rules 守则 ========== */
        .rules-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .rule-card { display: flex; gap: 18px; padding: 28px; background: var(--card); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: all var(--tr); }
        .rule-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: transparent; }
        .rule-num { font-size: 28px; font-weight: 900; color: var(--line); line-height: 1; transition: color var(--tr); }
        .rule-card:hover .rule-num { color: var(--acc); }
        .rule-card h3 { font-size: 16px; margin-bottom: 4px; }
        .rule-card p { font-size: 14px; color: var(--text-weak); }
        .rule-card i { font-size: 20px; color: var(--acc); margin-top: 2px; }

        /* ========== FAQ ========== */
        .faq-list { max-width: 860px; margin: 0 auto; }
        .faq-item { background: var(--card); border-radius: var(--radius-md); margin-bottom: 16px; box-shadow: var(--shadow-sm); border: 1px solid var(--line); overflow: hidden; transition: box-shadow var(--tr); }
        .faq-item.open { box-shadow: var(--shadow-md); }
        .faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 28px; text-align: left; font-size: 16px; font-weight: 700; color: var(--text); transition: color var(--tr); }
        .faq-q:hover { color: var(--acc); }
        .faq-q i { font-size: 14px; color: var(--acc); transition: transform var(--tr); }
        .faq-item.open .faq-q i { transform: rotate(45deg); }
        .faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
        .faq-item.open .faq-a { max-height: 200px; }
        .faq-a p { padding: 0 28px 24px; font-size: 14px; color: var(--text-weak); }

        /* ========== CTA ========== */
        .cta-section {
            padding: 100px 0;
            background: linear-gradient(rgba(11, 18, 34, .85), rgba(11, 18, 34, .88)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            text-align: center;
            color: #fff;
        }
        .cta-inner { max-width: 650px; margin: 0 auto; }
        .cta-inner h2 { font-size: clamp(26px, 4vw, 38px); margin-bottom: 16px; letter-spacing: -1px; }
        .cta-inner h2 span { color: var(--acc); }
        .cta-inner p { color: rgba(255, 255, 255, .72); margin-bottom: 36px; }
        .cta-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
        .cta-note { font-size: 13px; color: rgba(255, 255, 255, .4); margin-top: 22px; }

        /* ========== Footer ========== */
        .site-footer { background: var(--pri-dark); color: rgba(255, 255, 255, .7); padding: 70px 0 30px; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 50px; }
        .footer-brand .logo-text { font-size: 20px; margin-bottom: 14px; }
        .footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, .5); max-width: 300px; }
        .footer-social { display: flex; gap: 10px; margin-top: 20px; }
        .footer-social a { width: 40px; height: 40px; border-radius: 12px; background: rgba(255, 255, 255, .06); display: flex; align-items: center; justify-content: center; color: rgba(255, 255, 255, .6); font-size: 16px; transition: all var(--tr); }
        .footer-social a:hover { background: var(--acc); color: #fff; transform: translateY(-3px); }
        .footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
        .footer-links { display: flex; flex-direction: column; gap: 12px; }
        .footer-links a { font-size: 14px; color: rgba(255, 255, 255, .5); transition: all var(--tr); display: inline-flex; align-items: center; gap: 6px; }
        .footer-links a:hover { color: var(--acc); padding-left: 4px; }
        .footer-links a i { font-size: 10px; }
        .footer-contact p { font-size: 14px; color: rgba(255, 255, 255, .5); margin-bottom: 12px; }
        .footer-contact p i { color: var(--acc); margin-right: 8px; width: 18px; text-align: center; }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 26px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
        .footer-bottom span { font-size: 13px; color: rgba(255, 255, 255, .35); }
        .footer-links-mini { display: flex; gap: 18px; }
        .footer-links-mini a { font-size: 13px; color: rgba(255, 255, 255, .35); transition: color var(--tr); }
        .footer-links-mini a:hover { color: var(--acc); }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; gap: 50px; }
            .hero-visual { max-width: 560px; }
            .float-card.fc-1 { left: 10px; }
            .float-card.fc-2 { right: 10px; }
            .intro-grid { grid-template-columns: 1fr; gap: 50px; }
            .topics-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .main-nav {
                position: fixed;
                top: 74px; right: 0;
                width: 280px;
                height: calc(100vh - 74px);
                background: var(--pri-dark);
                flex-direction: column;
                padding: 30px 24px;
                gap: 8px;
                transform: translateX(100%);
                transition: transform var(--tr);
                box-shadow: -10px 0 30px rgba(0, 0, 0, .3);
            }
            .main-nav.open { transform: translateX(0); }
            .main-nav a { font-size: 15px; width: 100%; padding: 12px 18px; }
            .header-actions .header-btn { display: none; }
            .nav-toggle { display: flex; }
        }
        @media (max-width: 768px) {
            .section { padding: 70px 0; }
            .page-hero { padding: 160px 0 80px; }
            .hero-copy h1 { font-size: 34px; }
            .topics-grid { grid-template-columns: 1fr; }
            .rules-grid { grid-template-columns: 1fr; }
            .intro-feats { grid-template-columns: 1fr; }
            .timeline-item { gap: 16px; }
            .timeline-dot { width: 48px; height: 48px; }
            .timeline-box::before { left: 24px; }
            .cta-section { padding: 70px 0; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 18px; }
            .header-inner { gap: 10px; }
            .logo-text span { display: none; }
            .logo-text { font-size: 16px; }
            .header-search { display: none; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .stat-item { padding: 24px 14px; }
            .stat-item strong { font-size: 30px; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-links-mini { flex-wrap: wrap; }
            .hero-meta { gap: 14px; }
            .float-card { display: none; }
        }