/* =============================================
   糖心vlog - 主样式文件
   品牌色：玫瑰粉 #E8336D | 珊瑚橙 #FF6B35 | 深紫 #2D1B69
   ============================================= */

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

:root {
  --brand-pink: #E8336D;
  --brand-orange: #FF6B35;
  --brand-purple: #2D1B69;
  --brand-dark: #1A0A2E;
  --brand-light: #FFF0F5;
  --brand-gray: #F5F5F7;
  --text-primary: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-light: #AEAEB2;
  --white: #FFFFFF;
  --gradient-main: linear-gradient(135deg, #E8336D 0%, #FF6B35 100%);
  --gradient-dark: linear-gradient(135deg, #2D1B69 0%, #E8336D 100%);
  --shadow-sm: 0 2px 8px rgba(232,51,109,0.12);
  --shadow-md: 0 8px 24px rgba(232,51,109,0.18);
  --shadow-lg: 0 16px 48px rgba(232,51,109,0.22);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* === 工具类 === */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header .section-title span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--gradient-main);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--brand-pink);
  border: 2px solid var(--brand-pink);
}

.btn-outline:hover {
  background: var(--brand-pink);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--brand-pink);
  box-shadow: var(--shadow-sm);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--brand-light);
  color: var(--brand-pink);
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--gradient-main);
  color: var(--white);
}

/* === 顶部公告栏 === */
.top-bar {
  background: var(--gradient-dark);
  color: var(--white);
  text-align: center;
  padding: 8px 20px;
  font-size: 0.82rem;
  position: relative;
  z-index: 100;
}

.top-bar a {
  color: #FFD700;
  font-weight: 600;
  margin-left: 8px;
}

/* === 导航栏 === */
.navbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(232,51,109,0.1);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}

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

.navbar-brand .brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}

.navbar-brand .brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition);
  white-space: nowrap;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  background: var(--brand-light);
  color: var(--brand-pink);
}

/* === 搜索框 === */
.search-bar {
  background: var(--brand-gray);
  padding: 12px 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
}

.search-input-wrap {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-wrap input {
  width: 100%;
  padding: 10px 20px 10px 44px;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background: var(--white);
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
  box-shadow: var(--shadow-sm);
}

.search-input-wrap input:focus {
  border-color: var(--brand-pink);
}

.search-input-wrap .search-icon {
  position: absolute;
  left: 14px;
  color: var(--text-light);
  font-size: 1.1rem;
  pointer-events: none;
}

.search-btn {
  padding: 10px 24px;
  background: var(--gradient-main);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.search-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* === 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-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* === Hero 区域 === */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--brand-dark);
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(45,27,105,0.85) 0%, rgba(232,51,109,0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--white);
  max-width: 680px;
  padding: 60px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: #FFD700;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #FFD700, #FF6B35);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}

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

.hero-stat-item .num {
  font-size: 1.8rem;
  font-weight: 800;
  color: #FFD700;
}

.hero-stat-item .label {
  font-size: 0.82rem;
  opacity: 0.8;
}

/* === 视频卡片 === */
.video-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
}

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

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a1a2e;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

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

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

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

.play-circle {
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transform: scale(0.8);
  transition: transform var(--transition);
}

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

.play-circle svg {
  width: 24px;
  height: 24px;
  fill: var(--brand-pink);
  margin-left: 3px;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.video-category-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient-main);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.video-info {
  padding: 14px 16px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  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;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.video-author {
  display: flex;
  align-items: center;
  gap: 6px;
}

.author-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.video-stats {
  display: flex;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--text-light);
}

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

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

.video-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* === 分类标签栏 === */
.category-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.category-tab {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--brand-gray);
  color: var(--text-secondary);
  border: none;
}

.category-tab.active,
.category-tab:hover {
  background: var(--gradient-main);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

/* === 区块通用 === */
.section {
  padding: 70px 0;
}

.section-alt {
  background: var(--brand-gray);
}

.section-dark {
  background: var(--brand-dark);
  color: var(--white);
}

.section-gradient {
  background: linear-gradient(135deg, var(--brand-dark) 0%, #3D1A78 100%);
  color: var(--white);
}

/* === 功能特色卡片 === */
.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid rgba(232,51,109,0.06);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232,51,109,0.2);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === 专家卡片 === */
.expert-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

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

.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 14px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  font-weight: 700;
  overflow: hidden;
}

.expert-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.expert-title {
  font-size: 0.82rem;
  color: var(--brand-pink);
  font-weight: 600;
  margin-bottom: 10px;
}

.expert-desc {
  font-size: 0.83rem;
  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-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.expert-actions a {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  transition: all var(--transition);
}

.expert-actions .btn-contact {
  background: var(--gradient-main);
  color: var(--white);
}

.expert-actions .btn-works {
  border: 1.5px solid var(--brand-pink);
  color: var(--brand-pink);
}

.expert-actions .btn-works:hover {
  background: var(--brand-pink);
  color: var(--white);
}

/* === 用户评论 === */
.review-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(232,51,109,0.06);
  transition: all var(--transition);
}

.review-card:hover {
  box-shadow: var(--shadow-md);
}

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

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.review-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.review-date {
  font-size: 0.78rem;
  color: var(--text-light);
}

.review-stars {
  color: #FFD700;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.review-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === FAQ === */
.faq-item {
  border: 1px solid rgba(232,51,109,0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 12px;
  transition: all var(--transition);
}

.faq-item.active {
  border-color: var(--brand-pink);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  background: var(--white);
  transition: background var(--transition);
}

.faq-item.active .faq-question {
  background: var(--brand-light);
  color: var(--brand-pink);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-pink);
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.active .faq-icon {
  background: var(--brand-pink);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 24px 18px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === 合作品牌 === */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 20px;
}

.partner-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid rgba(0,0,0,0.05);
}

.partner-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand-pink);
}

.partner-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-align: center;
}

/* === 社区加入指南 === */
.how-to-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.how-to-step {
  text-align: center;
  padding: 24px 16px;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: var(--shadow-sm);
}

.how-to-step h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.how-to-step p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === 联系信息 === */
.contact-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.contact-info-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* === 二维码 === */
.qrcode-wrap {
  text-align: center;
}

.qrcode-wrap img {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-md);
  margin: 0 auto 10px;
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}

.qrcode-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* === 社交分享 === */
.share-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  color: var(--white);
}

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

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

/* === 页脚 === */
.footer {
  background: var(--brand-dark);
  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 .brand-name {
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 10px;
  margin-bottom: 12px;
}

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

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

.footer-col ul li a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

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

.footer-qrcodes {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.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: 0.82rem;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

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

.footer-bottom-links a:hover {
  color: var(--brand-pink);
}

/* === 面包屑 === */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 16px 0;
}

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

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

/* === 页面头部 === */
.page-header {
  background: linear-gradient(135deg, var(--brand-dark) 0%, #3D1A78 100%);
  color: var(--white);
  padding: 60px 0 50px;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1rem;
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
}

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

.page-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid rgba(232,51,109,0.2);
  color: var(--text-secondary);
  background: var(--white);
}

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

/* === 统计数字 === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 28px 20px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.1);
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* === 直播卡片 === */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #FF3B30;
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.live-dot {
  width: 6px;
  height: 6px;
  background: var(--white);
  border-radius: 50%;
  animation: blink 1s infinite;
}

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

/* === 滚动动画 === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === 移动端适配 === */
@media (max-width: 1024px) {
  .video-grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-md);
    border-top: 1px solid rgba(232,51,109,0.1);
    gap: 4px;
  }

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

  .navbar-nav a {
    width: 100%;
    padding: 12px 16px;
  }

  .hamburger {
    display: flex;
  }

  .navbar-inner {
    position: relative;
  }

  .video-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-stats {
    gap: 20px;
  }

  .hero-stat-item .num {
    font-size: 1.4rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .section {
    padding: 50px 0;
  }
}

@media (max-width: 480px) {
  .video-grid,
  .video-grid-4 {
    grid-template-columns: 1fr;
  }

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

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

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

  .search-bar-inner {
    flex-direction: column;
  }

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

/* === 懒加载占位 === */
img[loading="lazy"] {
  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; }
}

/* === 视频弹窗 === */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.85);
  align-items: center;
  justify-content: center;
}

.video-modal.open {
  display: flex;
}

.video-modal-inner {
  background: var(--brand-dark);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 800px;
  width: 90%;
  position: relative;
}

.video-modal-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 36px;
  height: 36px;
  background: var(--brand-pink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  border: none;
}

.video-placeholder {
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 1rem;
}

/* === 通知Toast === */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--brand-dark);
  color: var(--white);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-left: 4px solid var(--brand-pink);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}