/* ========================================
   青柠视频 - 原创样式系统
   影视传媒与视频社区平台
   主色：玫瑰粉 #FF6B9D | 副色：深玫瑰 #C44569
   ======================================== */

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #eff0f5 100%);
  color: #2c2c3e;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: #FF6B9D;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #C44569;
}

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

ul, ol {
  list-style: none;
}

/* ===== CSS 变量 ===== */
:root {
  --primary: #FF6B9D;
  --secondary: #C44569;
  --accent: #FFA07A;
  --dark-bg: #0a0a14;
  --light-bg: #f5f7fa;
  --card-bg: #ffffff;
  --card-shadow: 0 2px 8px rgba(255, 107, 157, 0.08);
  --card-shadow-hover: 0 8px 24px rgba(255, 107, 157, 0.15);
  --border-color: #e8e8f0;
  --text-primary: #2c2c3e;
  --text-secondary: #8a8a9e;
  --gradient-primary: linear-gradient(135deg, #FF6B9D 0%, #C44569 100%);
  --gradient-soft: linear-gradient(135deg, rgba(255, 107, 157, 0.1) 0%, rgba(196, 69, 105, 0.05) 100%);
  --radius: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.container-fluid {
  width: 100%;
  padding: 0 20px;
}

/* ===== 顶部公告栏 ===== */
.announcement-bar {
  background: var(--gradient-primary);
  color: white;
  padding: 12px 0;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(255, 107, 157, 0.2);
}

.announcement-bar a {
  color: white;
  text-decoration: underline;
  font-weight: 600;
}

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: white;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  padding: 0 20px;
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
  min-width: 150px;
}

.navbar-brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
}

.navbar-brand-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.navbar-nav a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  white-space: nowrap;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--primary);
  background: rgba(255, 107, 157, 0.08);
}

.navbar-search {
  display: flex;
  align-items: center;
  background: var(--light-bg);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 8px 16px;
  gap: 8px;
  min-width: 220px;
  transition: var(--transition);
}

.navbar-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

.navbar-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  width: 100%;
}

.navbar-search input::placeholder {
  color: var(--text-secondary);
}

.navbar-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.navbar-search button:hover {
  color: var(--primary);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
  font-size: 1.2rem;
}

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 50%, #eff0f5 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at 100% 50%, rgba(255, 107, 157, 0.1) 0%, transparent 70%);
  z-index: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 107, 157, 0.1);
  border: 1px solid rgba(255, 107, 157, 0.2);
  border-radius: 20px;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 24px;
}

.live-indicator {
  width: 8px;
  height: 8px;
  background: #ff4444;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
  max-width: 500px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 28px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(255, 107, 157, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 157, 0.4);
}

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

.btn-secondary:hover {
  background: rgba(255, 107, 157, 0.05);
}

.hero-stats {
  position: absolute;
  bottom: 40px;
  right: 40px;
  display: flex;
  gap: 32px;
  z-index: 2;
}

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

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== 通用 Section ===== */
.section {
  padding: 80px 0;
  position: relative;
}

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

.section-header {
  text-align: center;
  margin-bottom: 60px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-title .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

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

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

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f0f0 0%, #e8e8f0 100%);
}

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

.video-card:hover .video-thumb img {
  transform: scale(1.08);
}

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.play-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(255, 107, 157, 0.4);
}

.play-icon svg {
  width: 24px;
  height: 24px;
  fill: white;
  margin-left: 2px;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--gradient-primary);
  color: white;
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 700;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  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: 0.8rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

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

/* ===== 标签栏 ===== */
.tab-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  justify-content: center;
}

.tab-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: white;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  font-weight: 600;
}

/* ===== 专家卡片 ===== */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.expert-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

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

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

.expert-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.expert-title {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.expert-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 14px;
}

.expert-tag {
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255, 107, 157, 0.1);
  color: var(--primary);
  border: 1px solid rgba(255, 107, 157, 0.2);
}

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

.btn-sm {
  font-size: 0.8rem;
  padding: 6px 14px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: white;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-sm-primary {
  font-size: 0.8rem;
  padding: 6px 14px;
  border-radius: 16px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.btn-sm-primary:hover {
  transform: translateY(-2px);
}

/* ===== 评价卡片 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  position: relative;
}

.review-card::before {
  content: '"';
  position: absolute;
  top: 10px;
  right: 16px;
  font-size: 3rem;
  color: rgba(255, 107, 157, 0.1);
  font-family: Georgia, serif;
  line-height: 1;
}

.review-stars {
  color: #FFD700;
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.review-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.review-date {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

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

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

.faq-question {
  padding: 20px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  font-size: 0.95rem;
}

.faq-question:hover {
  background: rgba(255, 107, 157, 0.04);
}

.faq-question.open {
  color: var(--primary);
  background: rgba(255, 107, 157, 0.06);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 107, 157, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 700;
}

.faq-question.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

.faq-answer.open {
  max-height: 400px;
  padding: 0 20px 20px;
}

/* ===== 社交分享 ===== */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 30px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.share-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

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

.share-wechat {
  background: #07C160;
  color: white;
}

.share-weibo {
  background: #E6162D;
  color: white;
}

.share-douyin {
  background: #161823;
  color: white;
}

.share-bilibili {
  background: #00A1D6;
  color: white;
}

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

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--light-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  color: white;
}

.contact-info h4 {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 500;
}

.contact-info p {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

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

.qrcode-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.qrcode-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

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

.qrcode-item img {
  width: 130px;
  height: 130px;
  border-radius: 10px;
  border: 2px solid var(--border-color);
  object-fit: cover;
}

.qrcode-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 8px;
  font-weight: 500;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 60px 0 0;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #FF6B9D 0%, #FFA07A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-social {
  display: flex;
  gap: 8px;
}

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

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

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

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

.footer-col ul li a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-icp {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.footer-icp a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

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

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

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

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

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

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

/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-btn {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.page-btn:hover,
.page-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
}

/* ===== 搜索提示 ===== */
.search-toast {
  display: none;
  position: fixed;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px 24px;
  font-size: 0.9rem;
  color: var(--text-primary);
  z-index: 2000;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  white-space: nowrap;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .hero-stats {
    display: none;
  }

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

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

  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .experts-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none;
  }

  .navbar-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
  }

  .navbar-toggle {
    display: flex;
  }

  .navbar-search {
    min-width: 160px;
  }

  .hero {
    min-height: 480px;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

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

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

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

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

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

  .share-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-stats {
    display: none;
  }
}

@media (max-width: 480px) {
  .navbar-brand {
    min-width: auto;
  }

  .navbar-search {
    min-width: 100%;
  }

  .video-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }

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

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .section {
    padding: 50px 0;
  }

  .hero {
    min-height: 400px;
  }

  .qrcode-row {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ========================================
   补充样式 - 修复版
   ======================================== */

/* ===== Hero 布局修复 ===== */
.hero-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 40px;
}

.hero-img-wrap {
  flex: 1;
  max-width: 520px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(255, 107, 157, 0.2);
}

.hero-img-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ===== 影视传媒专区 ===== */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.media-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.media-thumb {
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

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

.media-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: var(--gradient-primary);
  color: white;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 4px;
  font-weight: 700;
}

.media-body {
  padding: 20px;
}

.media-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.media-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.media-link {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
}

/* ===== 娱乐专区 ===== */
.ent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.ent-card {
  display: block;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

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

.ent-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.ent-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.ent-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.ent-count {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
}

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

.ai-img img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(255, 107, 157, 0.15);
}

.ai-feature-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  padding: 18px 20px;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.ai-feature-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.ai-feature-item h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.ai-feature-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 社区功能 ===== */
.comm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.comm-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  border-top: 4px solid var(--primary);
  transition: var(--transition);
}

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

.comm-icon {
  font-size: 2.5rem;
  margin-bottom: 14px;
}

.comm-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.comm-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.comm-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

/* ===== HowTo 步骤 ===== */
.howto-box {
  background: var(--gradient-soft);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid rgba(255, 107, 157, 0.15);
}

.howto-box h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 32px;
}

.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}

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

.howto-num {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 1.1rem;
  font-weight: 900;
  color: white;
}

.howto-step h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.howto-step p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 合作伙伴 ===== */
.partners-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 40px;
}

.partner-item {
  padding: 14px 28px;
  background: var(--card-bg);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
  cursor: default;
}

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

/* ===== 视频描述 ===== */
.video-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 查看更多按钮 ===== */
.section-more {
  text-align: center;
  margin-top: 32px;
}

/* ===== 导航双图标 ===== */
.navbar-favicon {
  display: none;
}

.navbar-logo {
  display: block;
}

/* ===== 分享栏 ===== */
.share-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== 页脚补充 ===== */
.footer-update {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 8px;
}

.footer-muted {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

.footer-logo {
  border-radius: 10px;
  margin-bottom: 12px;
}

.footer-copy {
  font-size: 0.85rem;
}

/* ===== 专家卡片补充 ===== */
.expert-award {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.expert-works {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* ===== 按钮补充 ===== */
.btn-sm {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: white;
  color: var(--text-primary);
  transition: var(--transition);
}

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

.btn-sm-primary {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: var(--gradient-primary);
  color: white;
  transition: var(--transition);
}

.btn-sm-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ===== 联系页补充 ===== */
.service-list {
  margin-top: 16px;
  padding: 16px;
  background: white;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.service-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.service-list ul li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 4px 0;
  border-bottom: 1px solid #f5f5f5;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

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

.breadcrumb .sep {
  color: #ccc;
}

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

/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.page-btn {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: white;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.page-btn:hover,
.page-btn.active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

/* ===== 隐私/免责页 ===== */
.policy-content {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--card-shadow);
}

.policy-content h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 24px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(255, 107, 157, 0.15);
}

.policy-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.policy-content ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 12px;
}

.policy-content ul li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 4px;
}

/* ===== 响应式补充 ===== */
@media (max-width: 900px) {
  .hero-flex {
    flex-direction: column;
  }
  .hero-img-wrap {
    max-width: 100%;
    width: 100%;
  }
  .ai-layout {
    grid-template-columns: 1fr;
  }
  .media-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (max-width: 600px) {
  .ent-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .howto-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .partners-wrap {
    gap: 10px;
  }
  .partner-item {
    padding: 10px 16px;
    font-size: 0.8rem;
  }
  .policy-content {
    padding: 24px 16px;
  }
}

/* ===== 内页头部 ===== */
.page-header {
  background: linear-gradient(135deg, #fff 0%, #f5f7fa 100%);
  padding: 40px 0 30px;
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.page-header-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

.page-update {
  font-size: 0.8rem;
  color: #aaa;
  margin-top: 8px;
}