/* =============================================
   糖心 txvlog - 主样式文件
   wbmag.cn | 糖心视频 影视传媒社区
   ============================================= */

/* ---- CSS变量 / 设计系统 ---- */
:root {
  --color-primary: #E91E8C;
  --color-primary-dark: #C2185B;
  --color-secondary: #FF6B6B;
  --color-accent: #FF9A3C;
  --color-bg-dark: #0D0820;
  --color-bg-card: #1A1135;
  --color-bg-card2: #221845;
  --color-text: #F0E6FF;
  --color-text-muted: #9B8EC4;
  --color-border: rgba(233,30,140,0.25);
  --gradient-brand: linear-gradient(135deg, #E91E8C 0%, #FF6B6B 50%, #FF9A3C 100%);
  --gradient-dark: linear-gradient(180deg, #0D0820 0%, #1A1135 100%);
  --shadow-card: 0 8px 32px rgba(233,30,140,0.15);
  --shadow-hover: 0 16px 48px rgba(233,30,140,0.3);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg-dark);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-secondary);
}

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

ul, ol {
  list-style: none;
}

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-dark); }
::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 3px; }

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

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

/* ---- 通用工具类 ---- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 2.5rem;
}
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-header .section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--gradient-brand);
  margin: 12px auto 0;
  border-radius: 2px;
}

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 20px rgba(233,30,140,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(233,30,140,0.6);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: var(--gradient-brand);
  padding: 8px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #fff;
  font-weight: 500;
}
.top-bar a { color: #fff; text-decoration: underline; }

/* ---- 导航栏 ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 8, 32, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 20px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.navbar-brand img.site-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
}

.navbar-brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar-brand .brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-brand .brand-sub {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 2px;
}

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

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

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-primary);
  background: rgba(233,30,140,0.1);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.navbar-actions .btn-live {
  background: #FF3B3B;
  color: #fff;
  padding: 7px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 700;
  animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,59,59,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(255,59,59,0); }
}

/* ---- 搜索框 ---- */
.search-bar-wrap {
  background: rgba(26, 17, 53, 0.9);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.search-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 0 20px;
  gap: 10px;
  transition: var(--transition);
}

.search-input-wrap:focus-within {
  border-color: var(--color-primary);
  background: rgba(233,30,140,0.08);
  box-shadow: 0 0 0 3px rgba(233,30,140,0.15);
}

.search-input-wrap svg {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 0.95rem;
  padding: 10px 0;
  font-family: var(--font-main);
}

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

.search-btn {
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.search-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(233,30,140,0.4);
}

/* ---- 面包屑 ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

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

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

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

/* ---- Hero Banner ---- */
.hero-section {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,8,32,0.8) 0%, rgba(233,30,140,0.15) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(233,30,140,0.2);
  border: 1px solid rgba(233,30,140,0.4);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(240,230,255,0.8);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

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

.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.hero-stat .label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

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

/* ---- 分区通用 ---- */
section {
  padding: 70px 0;
}

section:nth-child(even) {
  background: rgba(26, 17, 53, 0.5);
}

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

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

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(233,30,140,0.5);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #0D0820;
}

.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);
}

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

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

.play-btn-circle {
  width: 56px;
  height: 56px;
  background: rgba(233,30,140,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transform: scale(0.8);
  transition: var(--transition);
}

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

.play-btn-circle svg {
  color: #fff;
  margin-left: 3px;
}

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

.video-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 700;
}

.video-badge.hot { background: #FF3B3B; }
.video-badge.new { background: #00C853; }
.video-badge.live { background: #FF3B3B; animation: pulse-red 2s infinite; }

.video-info {
  padding: 14px;
}

.video-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text);
  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: 0.78rem;
  color: var(--color-text-muted);
}

.video-stats {
  display: flex;
  gap: 12px;
}

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

/* ---- 特色卡片 ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

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

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(233,30,140,0.4);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(233,30,140,0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.8rem;
}

.feature-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---- 专家卡片 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

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

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

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

.expert-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.expert-title {
  font-size: 0.82rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 600;
}

.expert-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.tag {
  background: rgba(233,30,140,0.12);
  color: var(--color-primary);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 50px;
  border: 1px solid rgba(233,30,140,0.25);
}

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

/* ---- 评论卡片 ---- */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

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

.review-card:hover {
  border-color: rgba(233,30,140,0.4);
  box-shadow: var(--shadow-card);
}

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

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-user {
  flex: 1;
}

.review-name {
  font-size: 0.9rem;
  font-weight: 700;
}

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

.review-stars {
  color: #FFB800;
  font-size: 0.9rem;
}

.review-text {
  font-size: 0.88rem;
  color: rgba(240,230,255,0.85);
  line-height: 1.7;
}

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

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

.faq-item.open {
  border-color: rgba(233,30,140,0.4);
}

.faq-question {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  user-select: none;
  gap: 16px;
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  background: rgba(233,30,140,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--color-primary);
  transition: var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

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

/* ---- 合作品牌 ---- */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.partner-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition);
  white-space: nowrap;
}

.partner-item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(233,30,140,0.08);
}

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

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

.contact-info-block h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.contact-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-label {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-bottom: 2px;
}

.contact-value {
  color: var(--color-text);
}

.qr-row {
  display: flex;
  gap: 20px;
  margin-top: 24px;
}

.qr-item {
  text-align: center;
  flex: 1;
}

.qr-item img {
  width: 100%;
  max-width: 120px;
  border-radius: var(--radius-md);
  margin: 0 auto 8px;
  border: 2px solid var(--color-border);
}

.qr-item p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ---- 分享按钮 ---- */
.share-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  text-align: center;
}

.share-section h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-muted);
}

.share-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  color: #fff;
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #000; border: 1px solid #333; }
.share-bilibili { background: #00A1D6; }

/* ---- 页脚 ---- */
.footer {
  background: #080514;
  border-top: 1px solid var(--color-border);
  padding: 60px 0 0;
}

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

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

.footer-brand .footer-logo img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.footer-brand .footer-logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.social-icon {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
}

.social-icon:hover {
  background: rgba(233,30,140,0.2);
  border-color: var(--color-primary);
}

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

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

.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

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

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

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

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

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

/* ---- 内页横幅 ---- */
.page-banner {
  background: linear-gradient(135deg, #1A1135 0%, #2D1B5E 100%);
  padding: 60px 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(233,30,140,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.page-banner h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-banner p {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 600px;
  line-height: 1.7;
}

/* ---- 加载动画 ---- */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

/* ---- 弹幕效果 ---- */
.danmu-bar {
  background: rgba(0,0,0,0.5);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  overflow: hidden;
  height: 36px;
  position: relative;
  margin: 12px 0;
}

.danmu-text {
  position: absolute;
  white-space: nowrap;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
  animation: danmu-scroll 12s linear infinite;
  top: 50%;
  transform: translateY(-50%);
}

@keyframes danmu-scroll {
  from { left: 100%; }
  to { left: -100%; }
}

/* ---- 直播标签 ---- */
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: #FF3B3B;
  border-radius: 50%;
  animation: pulse-red 1.5s infinite;
  margin-right: 6px;
}

/* ---- 统计数字 ---- */
.stats-section {
  background: linear-gradient(135deg, rgba(233,30,140,0.1) 0%, rgba(255,107,107,0.05) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item .num {
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

.cat-tab {
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
  transition: var(--transition);
}

.cat-tab:hover,
.cat-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-inner {
    height: 60px;
  }

  .nav-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(13, 8, 32, 0.98);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    z-index: 999;
  }

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

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

  .hamburger {
    display: flex;
  }

  .hero-section {
    min-height: 420px;
  }

  .hero-content {
    padding: 50px 0;
  }

  .hero-stats {
    gap: 20px;
  }

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

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

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

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .search-bar-inner {
    flex-direction: column;
    gap: 8px;
  }

  .search-btn {
    width: 100%;
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  section {
    padding: 50px 0;
  }
}

@media (max-width: 480px) {
  .video-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

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

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

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

  .share-buttons {
    gap: 8px;
  }

  .share-btn {
    padding: 8px 14px;
    font-size: 0.8rem;
  }
}

/* ---- 图片懒加载占位 ---- */
img[data-src] {
  opacity: 0;
  transition: opacity 0.4s;
}

img.loaded {
  opacity: 1;
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease both;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---- 内页文章内容 ---- */
.page-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--color-text);
}

.page-content p {
  font-size: 0.95rem;
  color: rgba(240,230,255,0.85);
  line-height: 1.9;
  margin-bottom: 16px;
}

.page-content ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 16px;
}

.page-content ul li {
  font-size: 0.92rem;
  color: rgba(240,230,255,0.8);
  margin-bottom: 8px;
  line-height: 1.7;
}

/* ---- 侧边栏 ---- */
.sidebar {
  position: sticky;
  top: 90px;
}

.sidebar-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

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

.page-num {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.page-num:hover,
.page-num.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}


/* ---- 面包屑 ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

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

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

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

/* ---- 页面横幅 ---- */
.page-banner {
  background: linear-gradient(135deg, rgba(233,30,140,0.15) 0%, rgba(26,17,53,0.9) 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 60px 0 48px;
  text-align: center;
}

.page-banner h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 16px;
}

.page-banner p {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ---- 联系区域 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-info-block {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.contact-info-block h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-primary);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.contact-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 3px;
}

.contact-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.contact-value a {
  color: var(--color-primary);
  text-decoration: none;
}

/* ---- 二维码 ---- */
.qr-row {
  display: flex;
  gap: 16px;
  margin-top: 8px;
}

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

.qr-item img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  object-fit: cover;
}

.qr-item p {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* ---- 分享按钮 ---- */
.share-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.share-section h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 14px;
}

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

.share-btn {
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.share-wechat { background: #07C160; color: #fff; }
.share-weibo  { background: #E6162D; color: #fff; }
.share-douyin { background: #010101; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00A1D6; color: #fff; }

.share-btn:hover { transform: translateY(-2px); opacity: 0.9; }

/* ---- 弹幕 ---- */
.danmu-bar {
  background: rgba(0,0,0,0.3);
  border-radius: 50px;
  overflow: hidden;
  height: 36px;
  position: relative;
}

.danmu-text {
  display: inline-block;
  white-space: nowrap;
  font-size: 0.85rem;
  color: var(--color-text);
  padding: 0 16px;
  line-height: 36px;
  animation: danmuScroll 12s linear infinite;
}

@keyframes danmuScroll {
  0%   { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* ---- 用户评价 ---- */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

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

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

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

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-user {
  flex: 1;
}

.review-name {
  font-size: 0.9rem;
  font-weight: 700;
}

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

.review-stars {
  color: #FFB800;
  font-size: 0.85rem;
}

.review-text {
  font-size: 0.88rem;
  color: rgba(240,230,255,0.8);
  line-height: 1.8;
}

/* ---- FAQ ---- */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

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

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

.faq-item.open {
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(233,30,140,0.15);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  gap: 16px;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(233,30,140,0.15);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  font-size: 0.88rem;
  color: rgba(240,230,255,0.8);
  line-height: 1.9;
  transition: max-height 0.4s ease, padding 0.3s;
}

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

/* ---- 合作品牌 ---- */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.partner-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition);
  cursor: default;
}

.partner-item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* ---- 专家卡片 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

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

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

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-primary);
  margin: 0 auto 14px;
  display: block;
}

.expert-name {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.expert-title {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.expert-desc {
  font-size: 0.83rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

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

.tag {
  background: rgba(233,30,140,0.12);
  color: var(--color-primary);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 50px;
  font-weight: 600;
}

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

/* ---- 响应式补充 ---- */
@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .page-banner {
    padding: 40px 0 32px;
  }

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

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

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

  .share-buttons {
    gap: 8px;
  }

  .share-btn {
    font-size: 0.78rem;
    padding: 7px 12px;
  }
}