/* ==========================================================================
   玩物社区 - 现代直播风格全站核心样式表
   主题色彩：深邃星空紫黑基底 + 霓虹紫/粉红电光高光 + 青碧色信息流 + 现代流媒体卡片
   域名：y7fwrj.cn · 品牌：玩物社区 · 影视电影制作与流媒体视频社区
   ========================================================================== */

:root {
  --primary: #ff2e93;
  --primary-dark: #d81b60;
  --primary-light: #ff60b0;
  --accent: #00f2fe;
  --accent-cyan: #4facfe;
  --accent-amber: #ffaa00;
  --accent-purple: #7928ca;
  --bg-dark: #0b0f19;
  --bg-card: #131b2e;
  --bg-card-hover: #1c2742;
  --bg-section: #0f172a;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #1e293b;
  --border-glow: rgba(255, 46, 147, 0.35);
  --gradient-main: linear-gradient(135deg, #ff2e93 0%, #7928ca 50%, #4facfe 100%);
  --gradient-live: linear-gradient(90deg, #ff0844 0%, #ffb199 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
  --gradient-cyber: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
  --shadow-hover: 0 15px 35px -5px rgba(255, 46, 147, 0.3);
  --radius: 14px;
  --radius-sm: 8px;
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(121, 40, 202, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(255, 46, 147, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(79, 172, 254, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ================= 头部导航与搜索栏 ================= */
.site-header {
  background: rgba(11, 15, 25, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo img {
  height: 44px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  flex-wrap: nowrap;
}

.nav-links li a {
  color: var(--text-secondary);
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.nav-links li a:hover,
.nav-links li.active a {
  color: #ffffff;
  background: rgba(255, 46, 147, 0.16);
  box-shadow: inset 0 0 0 1px rgba(255, 46, 147, 0.4);
}

.live-badge {
  display: inline-block;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 700;
  background: var(--gradient-live);
  color: #ffffff;
  border-radius: 20px;
  letter-spacing: 0.5px;
  animation: pulseLive 2s infinite;
}

@keyframes pulseLive {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.85; }
  100% { transform: scale(1); opacity: 1; }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-live-stream {
  background: var(--gradient-main);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 13.5px;
  padding: 8px 18px;
  border-radius: 24px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 46, 147, 0.4);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-live-stream:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 46, 147, 0.6);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 22px;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
}

/* 头部搜索栏（专供百度SEO与用户交互体验） */
.header-search-bar {
  background: rgba(19, 27, 46, 0.8);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-wrapper {
  display: flex;
  align-items: center;
  max-width: 680px;
  margin: 0 auto;
  position: relative;
}
.search-input {
  width: 100%;
  height: 42px;
  padding: 0 110px 0 42px;
  background: rgba(11, 15, 25, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}
.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(255, 46, 147, 0.3);
}
.search-icon-left {
  position: absolute;
  left: 15px;
  color: var(--text-muted);
  font-size: 16px;
  pointer-events: none;
}
.search-btn {
  position: absolute;
  right: 4px;
  height: 34px;
  padding: 0 18px;
  background: var(--gradient-main);
  border: none;
  border-radius: 20px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.search-btn:hover {
  opacity: 0.92;
}

/* 面包屑导航 */
.breadcrumb-wrap {
  background: rgba(15, 23, 42, 0.6);
  padding: 12px 0;
  font-size: 13.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-secondary);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--primary-light); font-weight: 600; }

/* 页面顶部通用 Hero */
.page-hero {
  background: linear-gradient(180deg, rgba(255, 46, 147, 0.1) 0%, rgba(11, 15, 25, 0) 100%), var(--bg-section);
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-hero h1 {
  font-size: 32px;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
}
.page-hero p {
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 15px;
}

/* 首页 Banner / Hero */
.hero-banner {
  padding: 40px 0 30px;
  position: relative;
}
.banner-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}
.banner-main {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 420px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.banner-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.banner-main:hover img {
  transform: scale(1.03);
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11, 15, 25, 0.92) 0%, rgba(11, 15, 25, 0.3) 50%, rgba(11, 15, 25, 0.1) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
}
.banner-tag {
  align-self: flex-start;
  background: var(--gradient-live);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.banner-title {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 8px;
}
.banner-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}
.banner-stats {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--accent);
}

.banner-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.banner-sub {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 200px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.banner-sub img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.banner-sub:hover img {
  transform: scale(1.04);
}
.banner-sub-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11, 15, 25, 0.88) 0%, rgba(11, 15, 25, 0.2) 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
}
.banner-sub-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}
.banner-sub-meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 通用区块与标题 */
.section {
  padding: 50px 0;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  border-left: 4px solid var(--primary);
  padding-left: 14px;
}
.section-title-wrap h2 {
  font-size: 24px;
  font-weight: 800;
  color: #ffffff;
}
.section-title-wrap p {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.section-more {
  font-size: 13.5px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.section-more:hover {
  color: var(--primary-light);
}

/* ================= 视频卡片体系（鼠标hover播放效果与弹窗） ================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.video-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.video-grid-6 {
  grid-template-columns: repeat(6, 1fr);
}

.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.video-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-hover);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #000;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img {
  transform: scale(1.06);
}

/* 播放遮罩与播放按钮 */
.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 25, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .play-overlay {
  opacity: 1;
}
.play-btn-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: 0 0 20px rgba(255, 46, 147, 0.8);
  transform: scale(0.85);
  transition: var(--transition);
}
.video-card:hover .play-btn-circle {
  transform: scale(1);
}

.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  color: #fff;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}
.badge-live { background: var(--gradient-live); }
.badge-replay { background: var(--gradient-cyber); }
.badge-ai { background: linear-gradient(135deg, #00b4db, #0083b0); }

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
}

.video-info {
  padding: 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.video-info h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 12px;
  color: var(--text-muted);
}
.video-tags {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
.video-tag-item {
  font-size: 11px;
  color: var(--accent);
  background: rgba(0, 242, 254, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ================= 竖版网红与写真卡片 ================= */
.portrait-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.portrait-card {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  cursor: pointer;
}
.portrait-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.portrait-card:hover img {
  transform: scale(1.05);
}
.portrait-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11, 15, 25, 0.95) 0%, rgba(11, 15, 25, 0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
}
.portrait-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}
.portrait-sub {
  font-size: 13px;
  color: var(--accent);
  margin-top: 4px;
}
.portrait-tags {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
.portrait-tags span {
  font-size: 11px;
  background: rgba(255, 46, 147, 0.2);
  color: var(--primary-light);
  padding: 2px 8px;
  border-radius: 12px;
}

/* ================= 专家团队板块 ================= */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: var(--transition);
}
.expert-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.expert-avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 3px solid var(--primary);
  box-shadow: 0 0 15px rgba(255, 46, 147, 0.4);
}
.expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.expert-details h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}
.expert-role {
  font-size: 13px;
  color: var(--accent);
  margin-top: 2px;
}
.expert-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 10px 0;
}
.expert-honors {
  font-size: 12px;
  color: var(--accent-amber);
  margin-bottom: 12px;
}
.expert-actions {
  display: flex;
  gap: 10px;
}
.btn-sm-primary {
  background: var(--gradient-main);
  color: #fff !important;
  font-size: 12.5px;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
}
.btn-sm-outline {
  border: 1px solid var(--border);
  color: var(--text-primary) !important;
  font-size: 12.5px;
  padding: 6px 14px;
  border-radius: 20px;
}

/* ================= 社区互动与图文指南 ================= */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
}
.guide-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}
.guide-step {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 15px rgba(255, 46, 147, 0.4);
}
.guide-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.guide-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 合作影视品牌墙 */
.brand-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.brand-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 12px;
  text-align: center;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}
.brand-item:hover {
  color: #fff;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.03);
}

/* FAQ 常见问答 */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.faq-q {
  font-size: 15.5px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.faq-q span {
  color: var(--primary);
  font-size: 17px;
}
.faq-a {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 24px;
}

/* 真实用户评论体系 */
.comment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.comment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  transition: var(--transition);
}
.comment-card:hover {
  border-color: rgba(255, 46, 147, 0.3);
}
.comment-user {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.comment-avatar-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}
.comment-user-info h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.comment-user-info span {
  font-size: 12px;
  color: var(--text-muted);
}
.comment-text {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.comment-rating {
  margin-top: 10px;
  font-size: 12px;
  color: var(--accent-amber);
}

/* 联系我们与二维码展示 */
.contact-section-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 18px;
}
.contact-info-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14.5px;
  color: var(--text-secondary);
}
.contact-info-list strong {
  color: #fff;
  min-width: 90px;
}
.qr-container {
  display: flex;
  gap: 24px;
  justify-content: center;
}
.qr-card {
  text-align: center;
  background: rgba(11, 15, 25, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}
.qr-box {
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qr-box svg {
  width: 100%;
  height: 100%;
}
.qr-card p {
  font-size: 13px;
  color: #fff;
  font-weight: 600;
}
.qr-card span {
  font-size: 11px;
  color: var(--text-muted);
}

/* 文章详情与侧边栏 */
.content-layout {
  display: grid;
  grid-template-columns: 2.5fr 1fr;
  gap: 30px;
}
.article-main {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.article-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 24px;
}
.article-header h1 {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 14px;
}
.article-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}
.article-body h2 {
  font-size: 20px;
  color: #fff;
  margin: 28px 0 14px;
  padding-left: 10px;
  border-left: 3px solid var(--primary);
}
.article-body h3 {
  font-size: 17px;
  color: #fff;
  margin: 20px 0 10px;
}
.article-body p {
  margin-bottom: 16px;
}
.article-body img {
  border-radius: var(--radius-sm);
  margin: 20px 0;
  width: 100%;
  border: 1px solid var(--border);
}

/* 分享条 */
.share-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 30px 0 20px;
  padding: 16px;
  background: rgba(11, 15, 25, 0.6);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.share-btn {
  border: none;
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12.5px;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.share-btn:hover {
  border-color: var(--primary);
  color: #fff;
}

/* 侧边栏小组件 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.widget-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  border-left: 3px solid var(--accent);
  padding-left: 10px;
}
.widget-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.widget-list li a {
  font-size: 13.5px;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.widget-list li a:hover {
  color: var(--primary-light);
}

/* ================= 页脚 ================= */
.site-footer {
  background: #070a12;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 50px 0 25px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 30px;
  margin-bottom: 36px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 14px 0;
  max-width: 380px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  border-left: 2px solid var(--primary);
  padding-left: 8px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-col ul li a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-update-time {
  color: var(--accent);
  font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-wall { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .banner-grid { grid-template-columns: 1fr; }
  .banner-main { height: 320px; }
  .content-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .portrait-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .comment-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .qr-container { flex-direction: column; align-items: center; }
}

@media (max-width: 600px) {
  .btn-live-stream {
    padding: 4px 10px;
    font-size: 11.5px;
    gap: 4px;
    white-space: nowrap;
  }
  .btn-live-stream span:last-child {
    display: none;
  }
  .logo img {
    height: 36px;
  }
  .header-inner {
    height: 60px;
  }
}