/* =============================================
   51视频 - 主样式文件
   smheoxs.cn | 原创设计
   ============================================= */

/* CSS变量 - 原创配色方案 */
:root {
  --primary: #5c2d91;
  --primary-dark: #3d1a6e;
  --primary-light: #7b4bb8;
  --accent: #e8a020;
  --accent-light: #f5c060;
  --bg-dark: #0d0a1a;
  --bg-card: #1a1430;
  --bg-section: #120f24;
  --text-main: #f0eaf8;
  --text-muted: #a89cc8;
  --text-light: #d4c8f0;
  --border-color: #2e2050;
  --gradient-main: linear-gradient(135deg, #5c2d91 0%, #2d1a5c 50%, #0d0a1a 100%);
  --gradient-accent: linear-gradient(135deg, #e8a020 0%, #c06010 100%);
  --gradient-card: linear-gradient(180deg, #1a1430 0%, #0d0a1a 100%);
  --shadow-card: 0 4px 24px rgba(92,45,145,0.25);
  --shadow-hover: 0 8px 40px rgba(92,45,145,0.45);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

/* 全局重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', 'Hiragino Sans GB', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* =============================================
   布局容器
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 70px 0;
}

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

/* =============================================
   顶部公告栏
   ============================================= */
.top-bar {
  background: var(--primary-dark);
  padding: 6px 0;
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-links a {
  color: var(--text-muted);
  margin-left: 16px;
  font-size: 13px;
}

.top-bar-links a:hover {
  color: var(--accent);
}

/* =============================================
   头部导航
   ============================================= */
.site-header {
  background: rgba(13, 10, 26, 0.97);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 20px;
}

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

.site-logo img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: contain;
  background: var(--primary);
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, #a070e0, #e8a020);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

/* 导航菜单 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  color: var(--text-light);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  background: rgba(232,160,32,0.1);
}

/* 搜索框 */
.header-search {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  overflow: hidden;
  min-width: 220px;
  transition: var(--transition);
}

.header-search:focus-within {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(92,45,145,0.2);
}

.header-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 14px;
  padding: 8px 14px;
  flex: 1;
  min-width: 0;
}

.header-search input::placeholder {
  color: var(--text-muted);
}

.header-search button {
  background: var(--primary);
  border: none;
  color: #fff;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
}

.header-search button:hover {
  background: var(--primary-light);
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* 搜索栏（导航下方） */
.search-bar-row {
  background: var(--bg-section);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}

.search-bar-full {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  overflow: hidden;
  max-width: 700px;
  margin: 0 auto;
  transition: var(--transition);
}

.search-bar-full:focus-within {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(92,45,145,0.2);
}

.search-bar-full input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 15px;
  padding: 12px 20px;
  flex: 1;
}

.search-bar-full input::placeholder {
  color: var(--text-muted);
}

.search-bar-full button {
  background: var(--gradient-accent);
  border: none;
  color: #fff;
  padding: 12px 28px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}

.search-bar-full button:hover {
  opacity: 0.9;
}

/* =============================================
   英雄区 / Banner
   ============================================= */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13,10,26,0.95) 0%, rgba(13,10,26,0.5) 60%, transparent 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  padding: 60px 0;
}

.hero-badge {
  display: inline-block;
  background: rgba(232,160,32,0.15);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #fff;
}

.hero h1 span {
  background: linear-gradient(135deg, #a070e0, #e8a020);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.8;
}

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

.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  border: none;
  padding: 13px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,160,32,0.4);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 13px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline:hover {
  border-color: var(--primary-light);
  color: var(--primary-light);
  background: rgba(92,45,145,0.1);
}

/* =============================================
   统计数据栏
   ============================================= */
.stats-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 24px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 10px 20px;
  border-right: 1px solid var(--border-color);
}

.stat-item:last-child {
  border-right: none;
}

.stat-num {
  font-size: 28px;
  font-weight: 900;
  background: linear-gradient(135deg, #a070e0, #e8a020);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* =============================================
   区块标题
   ============================================= */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  background: rgba(92,45,145,0.2);
  border: 1px solid var(--primary-light);
  color: var(--primary-light);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-title span {
  background: linear-gradient(135deg, #a070e0, #e8a020);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* =============================================
   动漫视频卡片
   ============================================= */
.anime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.video-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

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

.video-thumb {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--bg-section);
}

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

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

.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,10,26,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.video-card:hover .play-overlay {
  opacity: 1;
}

.play-btn {
  width: 60px;
  height: 60px;
  background: rgba(232,160,32,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
}

.video-card:hover .play-btn {
  transform: scale(1);
}

.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}

.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  z-index: 2;
}

.video-badge.new {
  background: #e84040;
}

.video-badge.hot {
  background: #e87020;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  z-index: 2;
}

.video-info {
  padding: 14px;
}

.video-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.video-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.tag {
  background: rgba(92,45,145,0.2);
  color: var(--primary-light);
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid rgba(92,45,145,0.3);
}

/* =============================================
   影视传媒模块
   ============================================= */
.film-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.film-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.film-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.film-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

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

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

.film-body {
  padding: 18px;
}

.film-category {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.film-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.film-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =============================================
   AI赋能模块
   ============================================= */
.ai-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.ai-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: var(--transition);
}

.ai-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

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

.ai-icon {
  width: 54px;
  height: 54px;
  background: rgba(92,45,145,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 18px;
  border: 1px solid rgba(92,45,145,0.3);
}

.ai-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.ai-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* =============================================
   专家展示
   ============================================= */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition);
}

.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  border: 3px solid var(--primary);
}

.expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.expert-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.expert-role {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.expert-bio {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.expert-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 16px;
}

.award-badge {
  background: rgba(232,160,32,0.1);
  border: 1px solid rgba(232,160,32,0.3);
  color: var(--accent);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
}

.expert-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.btn-sm {
  padding: 7px 16px;
  font-size: 13px;
  border-radius: 20px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

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

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

.btn-sm-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.btn-sm-outline:hover {
  border-color: var(--primary-light);
  color: var(--primary-light);
}

/* =============================================
   社区功能
   ============================================= */
.community-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.community-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  display: flex;
  gap: 0;
  transition: var(--transition);
}

.community-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.community-img {
  width: 120px;
  flex-shrink: 0;
  overflow: hidden;
}

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

.community-body {
  padding: 18px;
  flex: 1;
}

.community-type {
  font-size: 11px;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.community-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.community-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =============================================
   合作品牌Logo墙
   ============================================= */
.partners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.partner-logo {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}

.partner-logo:hover {
  border-color: var(--primary-light);
  color: var(--primary-light);
  background: rgba(92,45,145,0.1);
}

/* =============================================
   How-To 加入社区
   ============================================= */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step-counter;
}

.step-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  border: 1px solid var(--border-color);
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-3px);
}

.step-num {
  width: 44px;
  height: 44px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: #fff;
  margin: 0 auto 16px;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =============================================
   FAQ 常见问题
   ============================================= */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

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

.faq-question {
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  user-select: none;
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  background: rgba(92,45,145,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary-light);
  transition: var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-answer-inner {
  padding: 0 24px 18px;
}

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

/* =============================================
   用户评论
   ============================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.review-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.review-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-user {
  flex: 1;
}

.review-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

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

.review-stars {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 2px;
}

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

/* =============================================
   联系我们
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-block {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--border-color);
}

.contact-info-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(92,45,145,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-detail {
  flex: 1;
}

.contact-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 15px;
  color: var(--text-main);
  font-weight: 600;
}

/* QR码区域 */
.qr-section {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

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

.qr-block img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  margin-bottom: 8px;
}

.qr-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* =============================================
   社交分享
   ============================================= */
.share-bar {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

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

.share-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.share-btn {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #000; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; color: #fff; }

.share-btn:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 50px 0 0;
}

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

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: contain;
  background: var(--primary);
}

.footer-logo-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, #a070e0, #e8a020);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.social-icon {
  width: 36px;
  height: 36px;
  background: rgba(92,45,145,0.2);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
}

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

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

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

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-icp {
  font-size: 12px;
  color: var(--text-muted);
}

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

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

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  background: var(--bg-section);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

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

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

.breadcrumb-sep {
  color: var(--border-color);
}

.breadcrumb-current {
  color: var(--text-main);
}

/* =============================================
   内页Hero
   ============================================= */
.page-hero {
  background: var(--gradient-main);
  padding: 50px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/banner.jpg') center/cover no-repeat;
  opacity: 0.1;
}

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

.page-hero h1 {
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 900;
  color: #fff;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 16px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* =============================================
   通用卡片
   ============================================= */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition);
}

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

/* =============================================
   响应式布局
   ============================================= */
@media (max-width: 1024px) {
  .film-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-features { grid-template-columns: repeat(2, 1fr); }
  .experts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .header-search { display: none; }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13,10,26,0.98);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    gap: 20px;
  }

  .main-nav.open a {
    font-size: 20px;
  }

  .hero { min-height: 400px; }
  .hero-content { padding: 40px 0; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(3) { border-right: 1px solid var(--border-color); }

  .anime-grid { grid-template-columns: repeat(2, 1fr); }
  .film-grid { grid-template-columns: 1fr; }
  .ai-features { grid-template-columns: 1fr; }
  .experts-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .anime-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .section { padding: 50px 0; }
}

/* =============================================
   动画
   ============================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* 直播标签闪烁 */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #e84040;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}

.live-dot {
  width: 6px;
  height: 6px;
  background: #fff;
  border-radius: 50%;
  animation: pulse 1.2s infinite;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}

/* 懒加载占位 */
img[data-src] {
  background: var(--bg-section);
  min-height: 100px;
}