/* roulang page: index */
:root {
  --primary: #6C5CE7;
  --primary-dark: #5541D7;
  --primary-light: #A29BFE;
  --secondary: #00B894;
  --secondary-light: #55EFC4;
  --accent: #FFB800;
  --bg: #F8F7FE;
  --bg-deep: #1E1B3A;
  --bg-soft: #EEECFB;
  --card-bg: #ffffff;
  --text: #2D2A4E;
  --text-light: #6E6A8E;
  --text-muted: #9A97B7;
  --border: #E5E2F5;
  --border-light: #F0EEFA;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(45, 42, 78, 0.06);
  --shadow-md: 0 8px 30px rgba(45, 42, 78, 0.10);
  --shadow-lg: 0 20px 50px rgba(108, 92, 231, 0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

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

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

ul, ol { list-style: none; }

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

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

.section { padding: 90px 0; }

.section-sm { padding: 60px 0; }

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

/* 浮动 Dock 导航 */
.site-header {
  position: relative;
  background: transparent;
  padding: 20px 0;
  z-index: 100;
}

.dock-nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.dock-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 60px;
  padding: 12px 28px;
  box-shadow: 0 8px 40px rgba(45, 42, 78, 0.08);
  transition: var(--transition);
}

.dock-nav:hover { box-shadow: 0 12px 50px rgba(108, 92, 231, 0.14); }

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

.logo-brand .logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(108, 92, 231, 0.3);
}

.logo-brand .logo-text {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.3px;
}

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

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

.nav-links a {
  padding: 10px 20px;
  border-radius: 40px;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-light);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover { color: var(--primary); background: var(--bg-soft); }

.nav-links a.active {
  color: var(--primary);
  background: linear-gradient(135deg, rgba(108,92,231,0.12), rgba(108,92,231,0.06));
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--primary);
  border-radius: 50%;
}

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

.nav-actions .search-toggle {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--text-light);
  padding: 10px;
  border-radius: 50%;
  transition: var(--transition);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-actions .search-toggle:hover { background: var(--bg-soft); color: var(--primary); }

.btn-login {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 40px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
  color: #fff;
}

.mobile-toggle {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text);
  padding: 8px;
  cursor: pointer;
  display: none;
  border-radius: 10px;
  transition: var(--transition);
}

.mobile-toggle:hover { background: var(--bg-soft); }

/* 移动端导航 */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: #fff;
  border-radius: 20px;
  padding: 20px;
  margin-top: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

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

.mobile-nav a {
  padding: 14px 16px;
  border-radius: 12px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}

.mobile-nav a:hover, .mobile-nav a.active { background: var(--bg-soft); color: var(--primary); }

/* Hero */
.hero {
  position: relative;
  padding: 70px 0 90px;
  background: linear-gradient(135deg, #F8F7FE 0%, #EEECFB 50%, #E8E4FA 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 60%;
  height: 120%;
  background: radial-gradient(circle, rgba(108,92,231,0.15), transparent 70%);
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 40%;
  height: 80%;
  background: radial-gradient(circle, rgba(0,184,153,0.1), transparent 70%);
  z-index: 1;
}

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

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 60px;
}

.hero-bg-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(108, 92, 231, 0.08);
  border: 1px solid rgba(108, 92, 231, 0.18);
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease;
}

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 22px;
  color: var(--text);
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-light);
  margin-bottom: 34px;
  max-width: 520px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 16px 36px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.35);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(108, 92, 231, 0.45);
  color: #fff;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.9);
  color: var(--text);
  padding: 16px 36px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 15px;
  border: 1.5px solid var(--border);
  transition: var(--transition);
  width: auto;
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid rgba(0,0,0,0.06);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.stat-item .stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}

.stat-item .stat-num i { font-size: 22px; margin-right: 4px; }

.stat-item .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.hero-visual {
  position: relative;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-card-main {
  background: #fff;
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.9);
  position: relative;
  z-index: 2;
}

.hero-card-main .card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.hero-card-main .card-title {
  font-weight: 700;
  font-size: 17px;
}

.hero-card-main .badge-live {
  background: rgba(0,184,153,0.12);
  color: var(--secondary);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-card-main .badge-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--secondary);
  animation: pulse 2s infinite;
}

.hero-login-form .form-group { margin-bottom: 16px; }

.hero-login-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 8px;
}

.hero-login-form input {
  width: 100%;
  padding: 14px 18px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  transition: var(--transition);
  font-size: 14px;
}

.hero-login-form input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.1);
}

.hero-login-form .btn-login {
  width: 100%;
  padding: 15px;
  font-size: 15px;
  margin-top: 8px;
}

.hero-card-main .card-footer-text {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.hero-card-main .card-footer-text a { color: var(--primary); font-weight: 600; }

/* 特性卡片 */
.features-spotlight { position: relative; }

.features-spotlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--border));
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 56px;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  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(--secondary));
  opacity: 0;
  transition: var(--transition);
}

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

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

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(108,92,231,0.12), rgba(108,92,231,0.06));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 22px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  transform: scale(1.08);
}

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

.feature-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}

/* 分类入口 */
.category-showcase { background: var(--bg-soft); position: relative; overflow: hidden; }

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

.section-title { text-align: center; max-width: 700px; margin: 0 auto; }

.section-title .section-tag {
  display: inline-block;
  background: rgba(108, 92, 231, 0.08);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.section-title h2 .highlight { color: var(--primary); position: relative; }

.section-title p {
  font-size: 15px;
  color: var(--text-light);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 56px;
}

.category-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-light);
  display: block;
}

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

.category-card-cover {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.category-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.category-card:hover .category-card-cover img { transform: scale(1.08); }

.category-card-cover .cover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(30,27,58,0.4), transparent);
  z-index: 1;
}

.category-card-cover .cover-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255,255,255,0.95);
  color: var(--text);
  padding: 5px 14px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 600;
}

.category-card-cover .category-icon {
  position: absolute;
  bottom: -22px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 8px 20px rgba(108, 92, 231, 0.35);
  z-index: 2;
}

.category-card-body {
  padding: 26px 24px 24px;
  position: relative;
}

.category-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.category-card-body p {
  font-size: 13.5px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.category-card-body .card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.category-card-body .card-link i { font-size: 12px; transition: transform 0.3s; }

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

/* 最新资讯 */
.info-section { position: relative; }

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

.info-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  margin-top: 56px;
  align-items: start;
}

.info-list-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.info-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
}

.info-list-header h3 {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-list-header h3 i { color: var(--primary); }

.info-list-header .view-all {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition);
}

.info-list-header .view-all:hover { color: var(--primary); }

.post-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
  align-items: flex-start;
}

.post-item:last-child { border-bottom: none; padding-bottom: 0; }

.post-item:hover { padding-left: 8px; }

.post-date {
  min-width: 56px;
  text-align: center;
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 10px 8px;
}

.post-date .day { font-size: 20px; font-weight: 800; display: block; line-height: 1.1; color: var(--primary); }

.post-date .month { font-size: 12px; color: var(--text-muted); }

.post-info h4 {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--text);
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-item:hover h4 { color: var(--primary); }

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.post-meta .tag {
  background: rgba(108, 92, 231, 0.08);
  color: var(--primary);
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 11.5px;
}

/* 侧边卡片 */
.info-side-cards {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.side-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.side-card .side-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-light);
}

.side-card .side-card-header i { color: var(--primary); }

.trending-list .trending-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  transition: var(--transition);
  border-radius: 10px;
}

.trending-item:hover { background: var(--bg-soft); padding-left: 10px; }

.trending-num {
  font-size: 16px;
  font-weight: 800;
  color: var(--border);
  min-width: 28px;
  font-style: italic;
}

.trending-item:nth-child(1) .trending-num,
.trending-item:nth-child(2) .trending-num,
.trending-item:nth-child(3) .trending-num {
  color: var(--primary);
}

.trending-item .trending-txt {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
  flex: 1;
}

.trending-item .trending-count {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

/* 数据与流程 */
.data-flow-section {
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.data-flow-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
}

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

.data-flow-section .section-title h2 { color: #fff; }

.data-flow-section .section-title p { color: rgba(255,255,255,0.6); }

.data-flow-section .section-title .section-tag {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 56px;
}

.stat-block {
  text-align: center;
  padding: 36px 20px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.stat-block:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.2);
}

.stat-block .stat-icon {
  font-size: 30px;
  color: var(--accent);
  margin-bottom: 16px;
}

.stat-block .stat-num {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-block .stat-label { font-size: 14px; color: rgba(255,255,255,0.6); }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 60px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 auto 18px;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 6px rgba(29,26,58,0.9), 0 0 20px rgba(108, 92, 231, 0.4);
}

.process-step:nth-child(2) .step-circle { border-color: var(--secondary); color: var(--secondary); box-shadow: 0 0 0 6px rgba(29,26,58,0.9), 0 0 20px rgba(0,184,153,0.4); }

.process-step:nth-child(3) .step-circle { border-color: var(--accent); color: var(--accent); box-shadow: 0 0 0 6px rgba(29,26,58,0.9), 0 0 20px rgba(255,184,0,0.4); }

.process-step:nth-child(4) .step-circle { border-color: var(--primary-light); color: var(--primary-light); box-shadow: 0 0 0 6px rgba(29,26,58,0.9), 0 0 20px rgba(162,155,254,0.4); }

.process-step h4 { font-size: 16px; color: #fff; font-weight: 600; margin-bottom: 8px; }

.process-step p { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.6; }

/* FAQ */
.faq-section { background: #fff; }

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 56px;
}

.faq-item {
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(108, 92, 231, 0.2);
  box-shadow: var(--shadow-sm);
}

.faq-item .faq-q {
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text);
}

.faq-item .faq-q .q-mark {
  width: 24px;
  height: 24px;
  min-width: 24px;
  background: rgba(108, 92, 231, 0.1);
  color: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  margin-top: 2px;
}

.faq-item .faq-a {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  padding-left: 36px;
}

/* CTA */
.cta-section { position: relative; overflow: hidden; }

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  filter: brightness(0.6);
}

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

.cta-box {
  background: #fff;
  border-radius: 32px;
  padding: 60px;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(108,92,231,0.2), transparent 70%);
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,184,153,0.15), transparent 70%);
}

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

.cta-box h2 { font-size: 34px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.5px; }

.cta-box h2 .highlight { color: var(--primary); }

.cta-box p { font-size: 15px; color: var(--text-light); max-width: 520px; margin: 0 auto 32px; }

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

.cta-buttons .btn-primary, .cta-buttons .btn-ghost { padding: 15px 36px; }

/* 页脚 */
.site-footer {
  background: var(--bg-deep);
  color: #fff;
  padding: 60px 0 30px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(108,92,231,0.4), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.footer-brand p { font-size: 13.5px; color: rgba(255,255,255,0.5); line-height: 1.8; margin-bottom: 20px; }

.footer-social { display: flex; gap: 10px; }

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  color: #fff;
}

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

.footer-links a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.5);
  transition: var(--transition);
  position: relative;
  padding-left: 16px;
}

.footer-links a::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--primary-light);
  font-size: 16px;
  line-height: 1.2;
}

.footer-links a:hover { color: var(--primary-light); padding-left: 20px; }

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 13.5px;
  color: rgba(255,255,255,0.6);
}

.footer-contact li i {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 13px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

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

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

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumb i { font-size: 10px; color: var(--border); }

.breadcrumb a { color: var(--text-muted); }

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

.breadcrumb .current { color: var(--primary); font-weight: 600; }

/* 动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero h1 { font-size: 44px; }
  .hero-grid { gap: 40px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .faq-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .dock-nav { padding: 10px 18px; }
  .nav-links { display: none; }
  .nav-actions .search-toggle { display: none; }
  .mobile-toggle { display: block; }
  .hero { padding: 50px 0 60px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .section { padding: 60px 0; }
  .feature-grid { grid-template-columns: 1fr; margin-top: 36px; }
  .category-grid { grid-template-columns: 1fr; margin-top: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 26px; }
  .info-list-wrap, .side-card { padding: 22px; }
  .faq-item { padding: 20px; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .dock-nav-wrap { padding: 0 18px; }
  .logo-brand .logo-text { font-size: 16px; }
  .hero h1 { font-size: 30px; }
  .section-title h2 { font-size: 26px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .process-steps { grid-template-columns: 1fr; gap: 30px; }
  .stat-block .stat-num { font-size: 32px; }
  .hero-card-main { padding: 24px; }
  .hero-buttons .btn-primary, .hero-buttons .btn-ghost { width: 100%; justify-content: center; }
  .cta-buttons .btn-primary, .cta-buttons .btn-ghost { width: 100%; justify-content: center; }
}

/* roulang page: category1 */
/* ===== Design Tokens ===== */
        :root {
            --primary: #1e3a8a;
            --primary-dark: #172c6e;
            --primary-light: #3b78f7;
            --primary-soft: #eef3ff;
            --accent: #f0a428;
            --accent-soft: #fff6e5;
            --accent-dark: #d98c14;
            --dark: #0f172a;
            --text: #1f2937;
            --text-light: #6b7280;
            --text-mute: #9ca3af;
            --bg: #f7f9fc;
            --white: #ffffff;
            --border: #e6ebf2;
            --success: #10b981;
            --danger: #ef4444;
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, .05);
            --shadow: 0 8px 32px rgba(15, 23, 42, .08);
            --shadow-lg: 0 18px 50px rgba(15, 23, 42, .12);
            --transition: .25s cubic-bezier(.4, 0, .2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        /* ===== Reset ===== */
        *, *::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; }
        a { text-decoration: none; color: inherit; transition: color var(--transition); }
        button { font-family: inherit; border: none; background: none; cursor: pointer; }
        input, textarea { font-family: inherit; }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: 1280px;
            margin-inline: auto;
            padding-inline: 24px;
        }
        @media (max-width: 768px) {
            .container { padding-inline: 18px; }
        }

        /* ===== Section Spacing ===== */
        section { position: relative; }
        .section-pad { padding: 96px 0; }
        @media (max-width: 1024px) { .section-pad { padding: 72px 0; } }
        @media (max-width: 640px) { .section-pad { padding: 56px 0; } }

        /* ===== Section Heading ===== */
        .section-heading {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }
        .section-heading.left { text-align: left; margin-left: 0; margin-right: 0; }
        .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .5px;
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 14px;
        }
        .section-heading h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            letter-spacing: -.5px;
            margin-bottom: 14px;
        }
        .section-heading p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .section-heading h2 { font-size: 26px; }
        }

        /* ===== Header / Dock Nav ===== */
        .site-header {
            position: sticky;
            top: 18px;
            z-index: 100;
            padding: 0 22px;
        }
        .dock-nav-wrap { max-width: 1200px; margin: 0 auto; }
        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, .7);
            border-radius: 60px;
            padding: 10px 18px 10px 24px;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition);
        }
        .dock-nav:hover { box-shadow: var(--shadow-lg); }
        .logo-brand a { display: flex; align-items: center; gap: 10px; }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(30, 58, 138, .3);
        }
        .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
        }
        .logo-text span {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 4px;
            background: #f1f4f9;
            border-radius: 40px;
        }
        .nav-links a {
            padding: 9px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(255, 255, 255, .8);
        }
        .nav-links a.active {
            background: var(--white);
            color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #f1f4f9;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            transition: all var(--transition);
        }
        .search-toggle:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .btn-login {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(30, 58, 138, .25);
        }
        .btn-login:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(30, 58, 138, .32);
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #f1f4f9;
            color: var(--text);
            font-size: 16px;
            align-items: center;
            justify-content: center;
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            left: 0;
            right: 0;
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            padding: 14px;
            border: 1px solid var(--border);
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            padding: 13px 18px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
        }
        .mobile-nav a:hover { background: var(--primary-soft); color: var(--primary); }
        .mobile-nav a.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 900px) {
            .site-header { top: 10px; padding: 0 14px; }
            .dock-nav { padding: 8px 12px 8px 16px; }
            .nav-links { display: none; }
            .mobile-toggle { display: flex; }
            .search-toggle { display: none; }
            .btn-login { padding: 9px 16px; font-size: 13px; }
        }
        @media (max-width: 480px) {
            .btn-login { padding: 8px 14px; font-size: 13px; }
            .logo-text { font-size: 16px; }
            .logo-icon { width: 38px; height: 38px; font-size: 16px; }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: 128px 0 108px;
            margin: 18px 22px 0;
            border-radius: 28px;
            overflow: hidden;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 23, 42, .88) 0%, rgba(30, 58, 138, .75) 55%, rgba(30, 58, 138, .35) 100%);
        }
        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 0 48px;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 24px;
        }
        .breadcrumb a { color: rgba(255, 255, 255, .9); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, .6); }
        .page-banner h1 {
            font-size: 46px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }
        .page-banner p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 32px;
            max-width: 560px;
        }
        .banner-stats {
            display: flex;
            gap: 34px;
            flex-wrap: wrap;
        }
        .banner-stats .stat { text-align: center; }
        .banner-stats .stat strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .banner-stats .stat span {
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            letter-spacing: .3px;
        }
        @media (max-width: 1024px) {
            .page-banner { padding: 90px 0 80px; }
            .page-banner h1 { font-size: 38px; }
        }
        @media (max-width: 768px) {
            .page-banner { margin: 12px 14px 0; border-radius: 20px; padding: 70px 0 60px; }
            .banner-inner { padding: 0 28px; }
            .page-banner h1 { font-size: 30px; }
            .page-banner p { font-size: 15px; }
            .banner-stats { gap: 22px; }
            .banner-stats .stat strong { font-size: 24px; }
        }
        @media (max-width: 520px) {
            .page-banner { padding: 52px 0 48px; }
            .page-banner h1 { font-size: 26px; }
            .banner-stats .stat strong { font-size: 20px; }
            .banner-stats .stat span { font-size: 12px; }
            .breadcrumb { font-size: 12px; padding: 5px 12px; }
        }

        /* ===== Intro Section ===== */
        .intro-section {
            padding: 90px 0 60px;
        }
        .intro-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 52px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .intro-card::after {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 164, 40, .12) 0%, transparent 70%);
        }
        .intro-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 14px;
        }
        .intro-card > p {
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 30px;
            max-width: 640px;
        }
        .intro-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 10px;
        }
        .feature-item {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(30, 58, 138, .2);
        }
        .feature-item i {
            font-size: 24px;
            color: var(--primary);
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .feature-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .intro-section { padding: 60px 0 40px; }
            .intro-card { padding: 32px 24px; border-radius: 18px; }
            .intro-features { grid-template-columns: 1fr; gap: 16px; }
        }

        /* ===== Topic Cards ===== */
        .topics-section {
            padding: 60px 0 80px;
        }
        .topic-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(30, 58, 138, .2);
        }
        .topic-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .topic-card:hover .topic-cover img { transform: scale(1.05); }
        .topic-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, .35) 100%);
        }
        .topic-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(8px);
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .topic-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .topic-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 18px;
        }
        .topic-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            font-size: 13px;
            color: var(--text-mute);
        }
        .topic-meta a {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-meta a:hover { gap: 10px; }
        @media (max-width: 768px) {
            .topic-cover { height: 180px; }
        }

        /* ===== List Section ===== */
        .list-section {
            padding: 70px 0 90px;
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            border-radius: 14px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .list-item:hover {
            background: var(--primary-soft);
            border-color: rgba(30, 58, 138, .12);
        }
        .list-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 15px;
        }
        .list-item:nth-child(1) .list-num {
            background: var(--accent-soft);
            color: var(--accent-dark);
            border-color: rgba(240, 164, 40, .2);
        }
        .list-content {
            flex: 1;
            min-width: 0;
        }
        .list-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .list-content span {
            font-size: 13px;
            color: var(--text-mute);
        }
        .list-tag {
            flex-shrink: 0;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            background: var(--bg);
            color: var(--text-light);
            border: 1px solid var(--border);
        }
        .list-arrow {
            flex-shrink: 0;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--white);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .list-item:hover .list-arrow {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateX(3px);
        }

        .side-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border);
            margin-bottom: 22px;
        }
        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .side-card h4 i { color: var(--primary); }
        .avatar-group {
            display: flex;
            align-items: center;
            margin-bottom: 16px;
        }
        .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 3px solid var(--white);
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            margin-left: -10px;
        }
        .avatar:first-child { margin-left: 0; }
        .avatar:nth-child(1) { background: #e0eaff; }
        .avatar:nth-child(2) { background: #fff0d8; }
        .avatar:nth-child(3) { background: #e5f9f0; }
        .avatar:nth-child(4) { background: #fde0e8; }
        .avatar-more {
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
        }
        .side-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .side-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(30, 58, 138, .25);
        }
        .side-btn:hover { background: var(--primary-dark); transform: translateY(-2px); color: #fff; }

        @media (max-width: 1024px) {
            .list-item { padding: 16px 14px; gap: 14px; }
            .list-tag { display: none; }
        }
        @media (max-width: 768px) {
            .list-section { padding: 50px 0 60px; }
            .list-arrow { display: none; }
            .list-content h4 { font-size: 14px; }
        }

        /* ===== Tag Cloud ===== */
        .tags-section {
            padding: 80px 0;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            max-width: 860px;
            margin: 0 auto;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--white);
            border: 1px solid var(--border);
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .tag-item i { font-size: 13px; color: var(--primary); }
        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(30, 58, 138, .25);
        }
        .tag-item:hover i { color: #fff; }
        .tag-item.hot { background: var(--accent-soft); border-color: rgba(240, 164, 40, .3); color: var(--accent-dark); }
        .tag-item.hot:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
        .tag-item.hot:hover i { color: #fff; }

        /* ===== Stats ===== */
        .stats-section {
            padding: 90px 0;
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: 28px;
            margin: 0 22px;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .92) 0%, rgba(30, 58, 138, .85) 100%);
        }
        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            padding: 0 40px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-4px);
        }
        .stat-item i {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .stat-item strong {
            display: block;
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item span {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }
        @media (max-width: 1024px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 768px) {
            .stats-section { margin: 0 14px; padding: 60px 0; }
            .stats-grid { grid-template-columns: 1fr 1fr; padding: 0 20px; gap: 14px; }
            .stat-item { padding: 22px 12px; }
            .stat-item strong { font-size: 28px; }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 90px 0 70px;
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: rgba(30, 58, 138, .2); box-shadow: var(--shadow-sm); }
        .faq-item details { padding: 0; }
        .faq-item summary {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: all var(--transition);
        }
        .faq-item details[open] summary .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-item details[open] summary {
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 28px 24px;
            color: var(--text-light);
            line-height: 1.8;
            font-size: 15px;
        }
        @media (max-width: 640px) {
            .faq-item summary { padding: 18px 20px; font-size: 15px; }
            .faq-answer { padding: 0 20px 20px; font-size: 14px; }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0 100px;
        }
        .cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 28px;
            padding: 64px 52px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }
        .cta-card::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -30px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(240, 164, 40, .15);
        }
        .cta-card h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }
        .cta-card p {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 2;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .cta-btn.primary {
            background: var(--accent);
            color: var(--dark);
            box-shadow: 0 8px 24px rgba(240, 164, 40, .35);
        }
        .cta-btn.primary:hover {
            background: #ffb84a;
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(240, 164, 40, .45);
        }
        .cta-btn.ghost {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .5);
        }
        .cta-btn.ghost:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .1);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .cta-section { padding: 60px 0 70px; }
            .cta-card { padding: 40px 24px; border-radius: 20px; }
            .cta-card h2 { font-size: 24px; }
            .cta-btn { padding: 12px 26px; font-size: 14px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 0;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: rgba(255, 255, 255, .7);
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: all var(--transition);
        }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-contact { list-style: none; }
        .footer-contact li {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            color: var(--accent);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }
        .footer-bottom a { color: rgba(255, 255, 255, .65); }
        .footer-bottom a:hover { color: var(--accent); }
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media (max-width: 640px) {
            .site-footer { padding-top: 50px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-bottom: 32px; }
            .footer-contact li { font-size: 13px; }
        }

        /* ===== Utility ===== */
        .fade-up { animation: fadeUp .6s ease both; }
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .delay-1 { animation-delay: .1s; }
        .delay-2 { animation-delay: .2s; }
        .delay-3 { animation-delay: .3s; }

/* roulang page: article */
:root{
  --primary:#4f46e5;
  --primary-light:#6d7cff;
  --primary-dark:#3730a3;
  --accent:#f59e0b;
  --bg:#f4f5fb;
  --white:#ffffff;
  --text:#0f172a;
  --text-light:#64748b;
  --border:#e2e8f0;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.06);
  --shadow-md:0 8px 24px rgba(15,23,42,.08);
  --shadow-lg:0 16px 40px rgba(15,23,42,.12);
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
ul,ol{padding:0;margin:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.35;font-weight:700}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:72px 0}
.site-header{position:sticky;top:0;z-index:200;padding:16px 20px 0;background:linear-gradient(to bottom,rgba(244,245,251,.92),rgba(244,245,251,.65));backdrop-filter:blur(8px)}
.dock-nav-wrap{max-width:1160px;margin:0 auto;position:relative}
.dock-nav{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border:1px solid rgba(226,232,240,.85);border-radius:60px;padding:10px 18px;box-shadow:var(--shadow-md);transition:var(--transition)}
.logo-brand{display:flex;align-items:center;flex-shrink:0}
.logo-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#8b5cf6);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 4px 12px rgba(79,70,229,.35)}
.logo-text{font-size:19px;font-weight:800;letter-spacing:.5px;color:var(--text);white-space:nowrap}
.logo-text span{color:var(--primary);font-weight:700}
.nav-links{display:flex;gap:8px;align-items:center}
.nav-links a{padding:8px 18px;border-radius:30px;font-size:15px;color:var(--text-light);font-weight:500;transition:var(--transition);text-decoration:none}
.nav-links a:hover{color:var(--text);background:var(--bg)}
.nav-links a.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(79,70,229,.3)}
.nav-actions{display:flex;align-items:center;gap:10px}
.search-toggle,.mobile-toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--text);font-size:15px;display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.search-toggle:hover,.mobile-toggle:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.08)}
.btn-login{display:inline-flex;align-items:center;background:linear-gradient(135deg,var(--primary),#6d7cff);color:#fff;border:0;border-radius:30px;padding:10px 24px;font-weight:600;font-size:14px;box-shadow:0 4px 14px rgba(79,70,229,.3);transition:var(--transition);text-decoration:none}
.btn-login:hover{background:linear-gradient(135deg,var(--primary-dark),var(--primary));transform:translateY(-2px);box-shadow:0 8px 20px rgba(79,70,229,.4);color:#fff}
.mobile-toggle{display:none}
.mobile-nav{display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;border-radius:20px;padding:14px;box-shadow:var(--shadow-lg);border:1px solid var(--border);flex-direction:column;gap:4px;z-index:120}
.mobile-nav.open{display:flex}
.mobile-nav a{display:flex;align-items:center;padding:12px 18px;border-radius:12px;font-size:15px;color:var(--text-light);font-weight:500;transition:var(--transition)}
.mobile-nav a:hover{background:var(--bg);color:var(--text)}
.mobile-nav a.active{background:var(--primary);color:#fff}
.search-pop{display:none;position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%);width:540px;max-width:92%;background:#fff;border-radius:60px;padding:8px 10px;box-shadow:var(--shadow-lg);border:1px solid var(--border);z-index:130}
.search-pop.open{display:block}
.search-pop form{display:flex;align-items:center;gap:6px}
.search-pop input{flex:1;border:0;outline:none;font-size:15px;padding:10px 18px;background:transparent;color:var(--text)}
.search-pop button{width:44px;height:44px;border-radius:50%;border:0;background:var(--primary);color:#fff;font-size:15px;transition:var(--transition)}
.search-pop button:hover{background:var(--primary-dark)}
.article-banner{position:relative;max-width:1160px;margin:22px auto 0;border-radius:28px;overflow:hidden;min-height:380px;display:flex;align-items:center;box-shadow:var(--shadow-lg);background-position:center;background-size:cover}
.article-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,23,42,.9) 0%,rgba(15,23,42,.55) 60%,rgba(79,70,229,.35) 100%)}
.article-banner-inner{padding:76px 52px;position:relative;z-index:2;color:#fff;max-width:840px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.75);align-items:center}
.breadcrumb a{color:rgba(255,255,255,.88);transition:var(--transition)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.article-banner h1{font-size:38px;line-height:1.3;margin:22px 0 18px;font-weight:800;letter-spacing:.5px}
.banner-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;color:rgba(255,255,255,.85);align-items:center}
.banner-badge{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;padding:5px 16px;border-radius:20px;font-size:13px;font-weight:600}
.banner-meta i{margin-right:5px}
.article-content-section{padding:52px 0 72px}
.article-main .cell,.sidebar .cell{}
.article-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:42px;border:1px solid rgba(226,232,240,.6);transition:var(--transition)}
.article-card:hover{box-shadow:var(--shadow-md)}
.article-body{font-size:16px;color:#334155;line-height:1.9}
.article-body p{margin:0 0 18px}
.article-body h2,.article-body h3{color:var(--text);font-weight:700;margin:28px 0 12px}
.article-body h2{font-size:24px}
.article-body h3{font-size:20px}
.article-body img{border-radius:16px;margin:22px 0;box-shadow:var(--shadow-sm)}
.article-body blockquote{border-left:4px solid var(--primary);background:var(--bg);padding:16px 22px;border-radius:0 12px 12px 0;margin:20px 0;color:var(--text-light)}
.article-body a{color:var(--primary);text-decoration:underline;word-break:break-all}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:6px}
.not-found-box{text-align:center;padding:60px 20px}
.not-found-box i{font-size:46px;color:var(--text-light);margin-bottom:16px}
.not-found-box h2{font-size:24px;margin-bottom:10px;color:var(--text)}
.not-found-box p{color:var(--text-light);margin-bottom:22px;max-width:420px;margin-left:auto;margin-right:auto}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--border)}
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--bg);padding:6px 16px;border-radius:20px;font-size:13px;color:var(--text-light);transition:var(--transition)}
.tag:hover{background:var(--primary);color:#fff}
.article-share{display:flex;align-items:center;gap:12px;margin-top:24px;font-size:14px;color:var(--text-light)}
.article-share a{width:38px;height:38px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;color:var(--text);transition:var(--transition)}
.article-share a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.sidebar{}
.side-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:28px;margin-bottom:24px;border:1px solid rgba(226,232,240,.6)}
.side-title{font-size:18px;font-weight:700;margin-bottom:18px;position:relative;padding-left:14px;color:var(--text)}
.side-title::before{content:'';position:absolute;left:0;top:5px;width:4px;height:18px;border-radius:4px;background:var(--primary);box-shadow:0 2px 6px rgba(79,70,229,.4)}
.search-form{position:relative}
.search-form input{width:100%;border:1px solid var(--border);border-radius:50px;padding:12px 48px 12px 18px;font-size:14px;outline:none;background:var(--bg);transition:var(--transition);color:var(--text)}
.search-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.12);background:#fff}
.search-form button{position:absolute;right:7px;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;border:0;background:var(--primary);color:#fff;font-size:14px;transition:var(--transition)}
.search-form button:hover{background:var(--primary-dark)}
.hot-list li{display:block}
.hot-item{display:flex;align-items:center;gap:12px;padding:12px 10px;border-radius:12px;transition:var(--transition)}
.hot-item:hover{background:var(--bg);transform:translateX(3px)}
.hot-rank{width:28px;height:28px;border-radius:8px;background:var(--bg);color:var(--text-light);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0}
.hot-list li:nth-child(1) .hot-rank{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff}
.hot-list li:nth-child(2) .hot-rank{background:linear-gradient(135deg,#64748b,#94a3b8);color:#fff}
.hot-list li:nth-child(3) .hot-rank{background:linear-gradient(135deg,#b45309,#d97706);color:#fff}
.hot-title{font-size:14px;line-height:1.5;color:var(--text);font-weight:500;margin:0 0 3px}
.hot-count{font-size:12px;color:var(--text-light)}
.side-login{background:linear-gradient(135deg,#0f172a,#4f46e5);color:#fff;text-align:center;border:0}
.side-login h4{color:#fff;margin:10px 0 8px;font-size:17px}
.side-login p{font-size:13px;color:rgba(255,255,255,.8);margin-bottom:18px}
.side-card img{border-radius:14px;width:100%;height:170px;object-fit:cover}
.side-card .btn-light{display:inline-flex;align-items:center;gap:6px}
.btn-primary,.btn-outline,.btn-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:50px;font-weight:600;font-size:15px;padding:12px 30px;transition:var(--transition);text-decoration:none}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(79,70,229,.3);border:0}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(79,70,229,.4);color:#fff}
.btn-outline{border:1px solid rgba(255,255,255,.65);color:#fff;background:rgba(255,255,255,.08)}
.btn-outline:hover{background:#fff;color:#0f172a;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--bg);transform:translateY(-2px)}
.btn-sm{padding:9px 20px;font-size:13px}
.btn-lg{padding:15px 38px;font-size:16px}
.related-section{background:var(--white)}
.section-head{margin-bottom:44px;max-width:640px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--primary);background:rgba(79,70,229,.08);padding:6px 16px;border-radius:30px;margin-bottom:10px}
.section-head h2{font-size:30px;font-weight:800;color:var(--text);margin:0 0 12px;line-height:1.3}
.section-head p{font-size:15px;color:var(--text-light);margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);display:block}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.related-cover{height:190px;overflow:hidden;position:relative}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-cover img{transform:scale(1.06)}
.related-body{padding:22px}
.card-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:rgba(79,70,229,.08);padding:4px 13px;border-radius:20px;margin-bottom:10px}
.related-body h3{font-size:16px;font-weight:700;line-height:1.5;margin:0 0 10px;color:var(--text)}
.related-body p{font-size:13px;color:var(--text-light);margin:0;line-height:1.7}
.discuss-section{background:var(--bg)}
.discuss-wrap{display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:start}
.discuss-side h2{font-size:28px;font-weight:800;margin:10px 0 14px;color:var(--text)}
.discuss-side p{color:var(--text-light);font-size:15px;margin:0}
.stat-row{display:flex;gap:14px;margin-top:28px}
.stat-box{background:#fff;border-radius:16px;padding:18px 24px;text-align:center;box-shadow:var(--shadow-sm);flex:1}
.stat-box strong{display:block;font-size:24px;color:var(--primary);font-weight:800}
.stat-box span{font-size:12px;color:var(--text-light)}
.comment-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:34px;border:1px solid rgba(226,232,240,.6)}
.comment-item{display:flex;gap:14px;padding:20px 0;border-bottom:1px solid var(--border)}
.comment-item:last-child{border-bottom:0}
.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#8b5cf6);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0;font-size:16px}
.avatar.green{background:linear-gradient(135deg,#059669,#10b981)}
.avatar.orange{background:linear-gradient(135deg,#d97706,#f59e0b)}
.comment-body{flex:1}
.comment-head{display:flex;justify-content:space-between;gap:10px;margin-bottom:6px}
.comment-author{font-size:14px;font-weight:600;color:var(--text)}
.comment-time{font-size:12px;color:var(--text-light)}
.comment-text{font-size:14px;color:#334155;margin:0;line-height:1.7}
.comment-form{margin-top:24px}
.comment-form textarea{width:100%;border:1px solid var(--border);border-radius:16px;padding:16px;font-size:14px;resize:vertical;min-height:100px;outline:none;background:var(--bg);transition:var(--transition);color:var(--text)}
.comment-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.1);background:#fff}
.comment-form .btn-primary{margin-top:14px;border:0}
.faq-section{background:var(--white)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:960px;margin:0 auto}
.faq-item{background:var(--bg);border-radius:var(--radius-md);padding:26px;border:1px solid var(--border);transition:var(--transition)}
.faq-item:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.faq-item h4{display:flex;gap:10px;margin:0 0 10px;font-size:16px;color:var(--text);align-items:flex-start}
.faq-item h4 i{color:var(--primary);font-size:18px;margin-top:2px}
.faq-item p{margin:0;font-size:14px;color:var(--text-light);line-height:1.75}
.cta-section{padding:80px 0;background:var(--bg)}
.cta-box{background:linear-gradient(135deg,rgba(15,23,42,.94),rgba(79,70,229,.82)),url('/assets/images/backpic/back-2.png') center/cover;border-radius:32px;padding:70px 48px;text-align:center;color:#fff;box-shadow:var(--shadow-lg)}
.cta-box h2{font-size:34px;color:#fff;margin-bottom:14px;font-weight:800}
.cta-box p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:32px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.site-footer{background:#0f172a;color:#94a3b8;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;padding-bottom:40px}
.footer-brand .logo-text{color:#fff;font-size:21px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.footer-brand .logo-text i{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.8;margin-bottom:20px;color:#94a3b8}
.footer-social{display:flex;gap:10px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#cbd5e1;transition:var(--transition);font-size:15px}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}
.footer-title{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#94a3b8;transition:var(--transition)}
.footer-links a:hover{color:#fff;padding-left:5px}
.footer-contact li{font-size:14px;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--primary-light);width:16px}
.footer-bottom{border-top:1px solid rgba(148,163,184,.15);padding:24px 0;text-align:center;font-size:13px}
.footer-bottom p{margin:0}
.footer-bottom a{color:#94a3b8;transition:var(--transition)}
.footer-bottom a:hover{color:#fff}
@media (max-width:1024px){
  section{padding:58px 0}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .discuss-wrap{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-banner{min-height:330px}
  .article-banner-inner{padding:60px 40px}
  .sidebar{margin-top:12px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .btn-login{display:none}
  .mobile-toggle{display:flex}
  .site-header{padding:14px 16px 0}
  .dock-nav{padding:8px 14px;border-radius:40px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .article-banner{border-radius:20px;min-height:280px}
  .article-banner-inner{padding:44px 24px}
  .article-banner h1{font-size:26px}
  .article-card{padding:26px}
  .related-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-box{padding:52px 24px}
  .cta-box h2{font-size:26px}
  .stat-row{flex-wrap:wrap}
  .comment-card{padding:24px}
  .comment-head{flex-direction:column;gap:2px}
  .search-pop{width:92%}
}
@media (max-width:520px){
  .logo-text{font-size:16px}
  .logo-icon{width:36px;height:36px;font-size:16px}
  .dock-nav{padding:8px 10px;gap:6px}
  .nav-actions{gap:6px}
  .search-toggle,.mobile-toggle{width:36px;height:36px}
  .article-banner-inner{padding:36px 20px}
  .article-banner h1{font-size:22px}
  .banner-meta{gap:12px;font-size:13px}
  .article-card{padding:20px}
  .section-head h2{font-size:24px}
  .related-cover{height:160px}
  .cta-box{padding:40px 18px}
  .cta-buttons{flex-direction:column}
  .btn-lg{width:100%}
  .footer-grid{padding-bottom:30px}
}