/* =============================================
   同人动漫 - 主样式文件
   版权所有 © 2025 同人动漫
   域名：y42ag6.cn
   ============================================= */

/* ---- CSS 变量 ---- */
:root {
  --primary: #FF4D85;
  --primary-dark: #e0346c;
  --primary-light: #ff80ab;
  --secondary: #9C27B0;
  --secondary-dark: #7B1FA2;
  --accent: #FFC107;
  --bg-main: #FAFAFA;
  --bg-dark: #1a1a2e;
  --bg-card: #ffffff;
  --text-main: #333333;
  --text-muted: #777777;
  --text-light: #aaaaaa;
  --border: #e8e8e8;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(255,77,133,0.18);
  --radius: 12px;
  --radius-sm: 6px;
  --transition: 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', 'Hiragino Sans GB', sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

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

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 13px;
  padding: 6px 0;
  text-align: center;
}

.top-bar a {
  color: #fff;
  text-decoration: underline;
}

/* ---- 导航栏 ---- */
.site-header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 20px;
}

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

.site-logo img.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

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

.site-logo .logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  display: block;
  margin-top: -4px;
}

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

.main-nav a {
  color: var(--text-main);
  font-size: 14px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}

/* ---- 搜索框 ---- */
.search-bar {
  display: flex;
  align-items: center;
  background: #f5f5f5;
  border-radius: 24px;
  padding: 6px 16px;
  gap: 8px;
  flex: 1;
  max-width: 280px;
  border: 2px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.search-bar:focus-within {
  border-color: var(--primary);
  background: #fff;
}

.search-bar input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--text-main);
  width: 100%;
}

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

.search-bar button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary);
  font-size: 16px;
  padding: 0;
  display: flex;
  align-items: center;
}

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

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

/* ---- Hero 区域 ---- */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,77,133,0.6) 0%, rgba(156,39,176,0.5) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-text h1 {
  font-size: 42px;
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

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

.hero-text p {
  font-size: 16px;
  color: rgba(255,255,255,0.88);
  margin-bottom: 28px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,77,133,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,77,133,0.5);
  color: #fff;
}

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

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

.hero-stats {
  display: flex;
  gap: 24px;
  margin-top: 32px;
}

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

.hero-stat .num {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  display: block;
}

.hero-stat .label {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
}

.hero-video-preview {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.hero-video-preview img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.hero-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  background: #fff;
}

/* ---- 搜索区域（导航下方） ---- */
.search-section {
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 18px 0;
}

.search-section-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 0;
}

.search-section-inner input {
  flex: 1;
  padding: 14px 22px;
  border: none;
  border-radius: 30px 0 0 30px;
  font-size: 15px;
  outline: none;
  background: #fff;
  color: var(--text-main);
}

.search-section-inner button {
  padding: 14px 30px;
  background: var(--accent);
  border: none;
  border-radius: 0 30px 30px 0;
  font-size: 15px;
  font-weight: 700;
  color: #333;
  cursor: pointer;
  transition: background var(--transition);
}

.search-section-inner button:hover {
  background: #e6ac00;
}

/* ---- 区块通用 ---- */
.section {
  padding: 60px 0;
}

.section-alt {
  background: #f5f0ff;
}

.section-dark {
  background: var(--bg-dark);
  color: #fff;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
}

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

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

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

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  cursor: pointer;
}

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

.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.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);
}

.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  transform: scale(0.8);
  transition: transform var(--transition);
}

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

.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 4px;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 4px;
}

.video-info {
  padding: 14px;
}

.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.video-stats {
  display: flex;
  gap: 10px;
}

.video-stats span {
  display: flex;
  align-items: center;
  gap: 3px;
}

.video-author {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.author-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

/* ---- 分类标签 ---- */
.category-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  justify-content: center;
}

.cat-tab {
  padding: 8px 20px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid var(--border);
  color: var(--text-muted);
  background: #fff;
}

.cat-tab:hover,
.cat-tab.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-color: transparent;
}

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

.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  text-align: center;
}

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

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 4px solid var(--primary-light);
}

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

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

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

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

.award-tag {
  background: #fff5f8;
  color: var(--primary);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid var(--primary-light);
}

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

.btn-sm {
  padding: 7px 16px;
  font-size: 12px;
  border-radius: 20px;
  font-weight: 600;
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* ---- 合作品牌 ---- */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}

.partner-logo {
  background: #fff;
  border-radius: 10px;
  padding: 16px 28px;
  box-shadow: var(--shadow);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-muted);
  transition: all var(--transition);
  border: 2px solid var(--border);
}

.partner-logo:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: scale(1.04);
}

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

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

.faq-question {
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
}

.faq-question:hover {
  background: #fff5f8;
}

.faq-question.open {
  color: var(--primary);
  background: #fff5f8;
}

.faq-arrow {
  font-size: 18px;
  transition: transform var(--transition);
  color: var(--primary);
}

.faq-question.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-answer.open {
  max-height: 300px;
  padding: 0 24px 18px;
}

/* ---- 用户评价 ---- */
.review-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-left: 4px solid var(--primary);
}

.review-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.review-stars {
  color: var(--accent);
  font-size: 14px;
  margin-bottom: 10px;
}

.review-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.review-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.review-date {
  font-size: 11px;
  color: var(--text-light);
}

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

.contact-info h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-main);
}

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

.contact-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}

.contact-label {
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 14px;
  color: var(--text-main);
  font-weight: 500;
}

.qr-codes {
  display: flex;
  gap: 20px;
}

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

.qr-code {
  width: 120px;
  height: 120px;
  background: #fff;
  border: 2px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  overflow: hidden;
}

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

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

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

.step-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
  transition: all var(--transition);
}

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

.step-num {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 16px;
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- 社区功能 ---- */
.community-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition);
  text-align: center;
}

.feature-card:hover {
  background: rgba(255,77,133,0.12);
  border-color: var(--primary);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 14px;
}

.feature-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
}

/* ---- AI 赋能区 ---- */
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.ai-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.ai-img img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.ai-features {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.ai-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ai-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.ai-feature-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.ai-feature-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- 社交分享 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px 0;
}

.share-label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.share-wechat { background: #07C160; color: #fff; }
.share-weibo { background: #E6162D; color: #fff; }
.share-douyin { background: #010101; color: #fff; }
.share-bilibili { background: #00A1D6; color: #fff; }

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

/* ---- 底部 ---- */
.site-footer {
  background: #111827;
  color: rgba(255,255,255,0.75);
  padding: 60px 0 0;
}

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

.footer-brand .logo-text {
  font-size: 24px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 16px;
}

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

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition);
  text-decoration: none;
}

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

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a {
  color: rgba(255,255,255,0.4);
}

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

/* ---- 面包屑 ---- */
.breadcrumb {
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

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

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

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

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

/* ---- 页面标题区 ---- */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 50px 0 40px;
  color: #fff;
  text-align: center;
}

.page-hero h1 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 10px;
}

.page-hero p {
  font-size: 15px;
  opacity: 0.85;
}

/* ---- 加载更多 ---- */
.load-more-wrap {
  text-align: center;
  margin-top: 36px;
}

/* ---- 标签云 ---- */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag {
  background: #f5f0ff;
  color: var(--secondary);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 16px;
  border: 1px solid #e0d0f5;
  transition: all var(--transition);
  cursor: pointer;
}

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

/* ---- 通知条 ---- */
.notice-bar {
  background: linear-gradient(90deg, #fff5f8, #f5f0ff);
  border-left: 4px solid var(--primary);
  padding: 12px 20px;
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ---- 滚动到顶部 ---- */
#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(255,77,133,0.4);
  z-index: 999;
  border: none;
}

#back-to-top.show {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  transform: translateY(-3px);
}

/* ---- 视频播放器模态框 ---- */
.rxrxsr {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.rxrxsr.show {
  opacity: 1;
  visibility: visible;
}

.o1g7b {
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  max-width: 800px;
  width: 90%;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  cursor: pointer;
  z-index: 1;
  border: none;
  transition: background var(--transition);
}

.modal-close:hover {
  background: var(--primary);
}

.3zbmm {
  width: 100%;
  aspect-ratio: 16/9;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 15px;
}

/* ---- 响应式 ---- */
@media (max-width: 1100px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-video-preview { display: none; }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .community-features { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .search-bar { max-width: 200px; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-text h1 { font-size: 28px; }
  .section-title { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .community-features { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .hero-stats { gap: 14px; }
  .qr-codes { flex-direction: column; align-items: center; }
}

/* ---- 移动端菜单 ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1500;
}

.mobile-menu.show {
  display: block;
}

.75zo0jb {
  background: #fff;
  width: 280px;
  height: 100%;
  padding: 24px;
  overflow-y: auto;
}

.75zo0jb a {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

.75zo0jb a:hover {
  color: var(--primary);
}

.mobile-menu-close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 20px;
  cursor: pointer;
  font-size: 22px;
  color: var(--text-muted);
}

/* ---- 懒加载占位 ---- */
img[data-src] {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ---- 数字动画 ---- */
.count-up {
  display: inline-block;
}

/* ---- 更新时间 ---- */
.update-time {
  font-size: 12px;
  color: var(--text-light);
}