/* ============================================
   小蓝视频 原创样式表
   品牌：小蓝视频 | 域名：122236.cn
   原创配色方案 - 甜蜜粉紫主题
   ============================================ */

/* --- CSS变量定义 --- */
:root {
  --tx-primary: #E84393;
  --tx-primary-dark: #C0357B;
  --tx-secondary: #6C5CE7;
  --tx-secondary-dark: #5A4BD1;
  --tx-accent: #FF6B6B;
  --tx-bg: #F8F5FF;
  --tx-bg-alt: #F0EBFA;
  --tx-dark: #1A1028;
  --tx-dark-light: #2D1B4E;
  --tx-text: #2D1B4E;
  --tx-text-light: #7C6C8A;
  --tx-white: #FFFFFF;
  --tx-border: #E8DFF2;
  --tx-shadow: 0 4px 20px rgba(108,92,231,0.1);
  --tx-shadow-hover: 0 8px 32px rgba(232,67,147,0.18);
  --tx-radius: 12px;
  --tx-radius-sm: 8px;
  --tx-transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --tx-font: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei','WenQuanYi Micro Hei',sans-serif;
}

/* --- 全局重置 --- */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--tx-font);
  color: var(--tx-text);
  background: var(--tx-bg);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--tx-primary); text-decoration: none; transition: var(--tx-transition); }
a:hover { color: var(--tx-primary-dark); }
h1,h2,h3,h4,h5,h6 { line-height: 1.3; color: var(--tx-dark-light); font-weight: 700; }

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

/* --- 头部导航 --- */
.tx-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26,16,40,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232,67,147,0.2);
  transition: var(--tx-transition);
}
.tx-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.tx-logo img {
  height: 42px;
  width: auto;
}
.tx-nav {
  display: flex;
  gap: 4px;
}
.tx-nav-link {
  color: rgba(255,255,255,0.78);
  padding: 8px 14px;
  border-radius: var(--tx-radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--tx-transition);
  white-space: nowrap;
}
.tx-nav-link:hover,
.tx-nav-link.active {
  color: var(--tx-white);
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
}
.tx-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.tx-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--tx-white);
  border-radius: 2px;
  transition: var(--tx-transition);
}

/* --- 搜索栏 --- */
.tx-search-bar {
  margin-top: 68px;
  background: linear-gradient(135deg, var(--tx-dark) 0%, #2D1B4E 100%);
  padding: 12px 0;
  border-bottom: 1px solid rgba(232,67,147,0.15);
}
.tx-search-wrap {
  display: flex;
  max-width: 560px;
  margin: 0 auto;
  background: rgba(255,255,255,0.1);
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(232,67,147,0.3);
  transition: var(--tx-transition);
}
.tx-search-wrap:focus-within {
  border-color: var(--tx-primary);
  box-shadow: 0 0 0 3px rgba(232,67,147,0.15);
}
.tx-search-input {
  flex: 1;
  padding: 10px 20px;
  background: transparent;
  border: none;
  color: var(--tx-white);
  font-size: 0.95rem;
  outline: none;
  font-family: var(--tx-font);
}
.tx-search-input::placeholder { color: rgba(255,255,255,0.5); }
.tx-search-btn {
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
  border: none;
  color: var(--tx-white);
  cursor: pointer;
  transition: var(--tx-transition);
}
.tx-search-btn:hover { opacity: 0.9; }

/* --- Banner --- */
.tx-banner {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.tx-banner-bg {
  position: absolute;
  inset: 0;
}
.tx-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tx-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,16,40,0.85) 0%, rgba(108,92,231,0.65) 50%, rgba(232,67,147,0.55) 100%);
}
.tx-banner-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  text-align: center;
  color: var(--tx-white);
}
.tx-banner-title {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--tx-white);
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.tx-banner-subtitle {
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 auto 28px;
  opacity: 0.92;
  line-height: 1.8;
}
.tx-banner-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 36px;
}
.tx-btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: 28px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--tx-transition);
  border: 2px solid transparent;
  font-family: var(--tx-font);
}
.tx-btn-primary {
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-accent));
  color: var(--tx-white);
}
.tx-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(232,67,147,0.4);
  color: var(--tx-white);
}
.tx-btn-outline {
  border-color: rgba(255,255,255,0.6);
  color: var(--tx-white);
  background: transparent;
}
.tx-btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--tx-white);
  color: var(--tx-white);
}
.tx-btn-secondary {
  background: linear-gradient(135deg, var(--tx-secondary), var(--tx-primary));
  color: var(--tx-white);
  border: none;
}
.tx-btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(108,92,231,0.4);
  color: var(--tx-white);
}
.tx-banner-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.tx-stat-item { text-align: center; }
.tx-stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FFD93D, #FF6B6B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tx-stat-label {
  font-size: 0.85rem;
  opacity: 0.8;
}

/* --- 面包屑 --- */
.tx-breadcrumb {
  padding: 12px 0;
  background: var(--tx-white);
  border-bottom: 1px solid var(--tx-border);
  font-size: 0.88rem;
}
.tx-breadcrumb a { color: var(--tx-primary); }
.tx-bc-sep { margin: 0 8px; color: var(--tx-text-light); }
.tx-bc-current { color: var(--tx-text-light); }

/* --- 通用Section --- */
.tx-section {
  padding: 64px 0;
}
.tx-section:nth-child(even) {
  background: var(--tx-white);
}
.tx-section-header {
  text-align: center;
  margin-bottom: 42px;
}
.tx-section-title {
  font-size: 2rem;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tx-section-desc {
  color: var(--tx-text-light);
  max-width: 700px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.8;
}
.tx-section-more {
  text-align: center;
  margin-top: 36px;
}

/* --- 视频卡片 --- */
.tx-video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tx-video-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  overflow: hidden;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  cursor: pointer;
}
.tx-video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tx-shadow-hover);
}
.tx-video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.tx-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--tx-transition);
}
.tx-video-card:hover .tx-video-thumb img {
  transform: scale(1.05);
}
.tx-video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  opacity: 0;
  transition: var(--tx-transition);
  z-index: 3;
}
.tx-video-card:hover .tx-video-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.tx-video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--tx-white);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  z-index: 2;
}
.tx-video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
  color: var(--tx-white);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 2;
}
.tx-video-info {
  padding: 16px;
}
.tx-video-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}
.tx-video-meta {
  font-size: 0.82rem;
  color: var(--tx-text-light);
}

/* --- 内容卡片网格 --- */
.tx-card-grid {
  display: grid;
  gap: 24px;
}
.tx-card-grid-4 { grid-template-columns: repeat(4, 1fr); }
.tx-card-grid-5 { grid-template-columns: repeat(5, 1fr); }
.tx-card-grid-3 { grid-template-columns: repeat(3, 1fr); }

.tx-content-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  overflow: hidden;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
}
.tx-content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
}
.tx-content-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.tx-card-body {
  padding: 16px;
}
.tx-card-title {
  font-size: 1rem;
  margin-bottom: 8px;
  font-weight: 600;
}
.tx-card-text {
  font-size: 0.88rem;
  color: var(--tx-text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tx-card-tag {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 10px;
  background: var(--tx-bg-alt);
  color: var(--tx-primary);
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

/* --- AI赋能模块 --- */
.tx-ai-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tx-ai-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border: 1px solid var(--tx-border);
}
.tx-ai-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
  border-color: var(--tx-primary);
}
.tx-ai-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  background: var(--tx-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tx-ai-title {
  font-size: 1.05rem;
  margin-bottom: 10px;
}
.tx-ai-desc {
  font-size: 0.88rem;
  color: var(--tx-text-light);
  line-height: 1.7;
}

/* --- 社区功能 --- */
.tx-community-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tx-community-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 28px 20px;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border: 1px solid var(--tx-border);
}
.tx-community-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
}
.tx-comm-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(232,67,147,0.1), rgba(108,92,231,0.1));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--tx-primary);
}
.tx-community-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}
.tx-community-card p {
  font-size: 0.88rem;
  color: var(--tx-text-light);
  line-height: 1.7;
}

/* --- 专家展示 --- */
.tx-expert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tx-expert-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 28px;
  text-align: center;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
}
.tx-expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
}
.tx-expert-card img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
  border: 3px solid var(--tx-bg-alt);
}
.tx-expert-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.tx-expert-role {
  color: var(--tx-primary);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.tx-expert-desc {
  font-size: 0.85rem;
  color: var(--tx-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.tx-expert-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
}
.tx-btn-sm {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
  color: var(--tx-white);
  transition: var(--tx-transition);
}
.tx-btn-sm:hover {
  opacity: 0.9;
  color: var(--tx-white);
}
.tx-btn-sm-outline {
  background: transparent;
  border: 1px solid var(--tx-primary);
  color: var(--tx-primary);
}
.tx-btn-sm-outline:hover {
  background: var(--tx-primary);
  color: var(--tx-white);
}

/* --- 合作品牌 --- */
.tx-partner-wall {
  text-align: center;
}
.tx-partner-wall img {
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--tx-radius);
  box-shadow: var(--tx-shadow);
}

/* --- How-To步骤 --- */
.tx-howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tx-step {
  text-align: center;
  padding: 28px 20px;
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  position: relative;
}
.tx-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
}
.tx-step-num {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.tx-step h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}
.tx-step p {
  font-size: 0.88rem;
  color: var(--tx-text-light);
  line-height: 1.7;
}

/* --- FAQ --- */
.tx-faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.tx-faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--tx-border);
  border-radius: var(--tx-radius-sm);
  overflow: hidden;
  background: var(--tx-white);
}
.tx-faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  cursor: pointer;
  transition: var(--tx-transition);
}
.tx-faq-q:hover {
  background: var(--tx-bg-alt);
}
.tx-faq-q h3 {
  font-size: 1rem;
  font-weight: 600;
  flex: 1;
}
.tx-faq-toggle {
  font-size: 1.4rem;
  color: var(--tx-primary);
  font-weight: 700;
  transition: var(--tx-transition);
  min-width: 24px;
  text-align: center;
}
.tx-faq-item.open .tx-faq-toggle {
  transform: rotate(45deg);
}
.tx-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.tx-faq-item.open .tx-faq-a {
  max-height: 400px;
}
.tx-faq-a p {
  padding: 0 20px 16px;
  font-size: 0.92rem;
  color: var(--tx-text-light);
  line-height: 1.8;
}

/* --- 用户评论 --- */
.tx-review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tx-review-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 24px;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border-left: 4px solid var(--tx-primary);
}
.tx-review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
}
.tx-review-stars {
  color: #FFD93D;
  font-size: 1.1rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.tx-review-text {
  font-size: 0.92rem;
  color: var(--tx-text);
  line-height: 1.8;
  margin-bottom: 16px;
  font-style: italic;
}
.tx-review-author strong {
  display: block;
  font-size: 0.95rem;
  color: var(--tx-dark-light);
}
.tx-review-author span {
  font-size: 0.82rem;
  color: var(--tx-text-light);
}

/* --- 推荐卡片 --- */
.tx-recommend-card {
  display: block;
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  overflow: hidden;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  color: var(--tx-text);
}
.tx-recommend-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
  color: var(--tx-text);
}
.tx-recommend-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}
.tx-recommend-card h3 {
  padding: 12px 12px 4px;
  font-size: 0.92rem;
}
.tx-recommend-card p {
  padding: 0 12px 12px;
  font-size: 0.82rem;
  color: var(--tx-text-light);
  line-height: 1.6;
}

/* --- 页脚 --- */
.tx-footer {
  background: var(--tx-dark);
  color: rgba(255,255,255,0.75);
  padding: 52px 0 0;
}
.tx-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.tx-footer-logo {
  margin-bottom: 14px;
  height: 48px;
  width: auto;
}
.tx-footer-desc {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 16px;
}
.tx-social-links {
  display: flex;
  gap: 10px;
}
.tx-social-link {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: var(--tx-transition);
}
.tx-social-link:hover {
  background: var(--tx-primary);
  color: var(--tx-white);
}
.tx-footer-title {
  color: var(--tx-white);
  font-size: 1rem;
  margin-bottom: 16px;
  font-weight: 600;
}
.tx-footer-link {
  display: block;
  color: rgba(255,255,255,0.65);
  font-size: 0.88rem;
  padding: 4px 0;
  transition: var(--tx-transition);
}
.tx-footer-link:hover {
  color: var(--tx-primary);
  padding-left: 6px;
}
.tx-footer-contact {
  font-size: 0.85rem;
  margin-bottom: 6px;
}
.tx-footer-qrcodes {
  display: flex;
  gap: 16px;
  margin-top: 14px;
}
.tx-qrcode-item {
  text-align: center;
}
.tx-qrcode-item img {
  width: 90px;
  height: 90px;
  border-radius: 8px;
  margin-bottom: 4px;
}
.tx-qrcode-item span {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
}
.tx-share-section {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.tx-share-label {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
}
.tx-share-btn {
  padding: 5px 16px;
  border-radius: 16px;
  font-size: 0.82rem;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  transition: var(--tx-transition);
}
.tx-share-btn:hover {
  background: var(--tx-primary);
  color: var(--tx-white);
}
.tx-footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}
.tx-footer-bottom p { margin-bottom: 4px; }

/* --- 内页Banner --- */
.tx-page-banner {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: 0;
}
.tx-page-banner .tx-banner-bg {
  position: absolute;
  inset: 0;
}
.tx-page-banner .tx-banner-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tx-page-banner .tx-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,16,40,0.88), rgba(108,92,231,0.7));
}
.tx-page-banner-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
  color: var(--tx-white);
}
.tx-page-banner-content h1 {
  font-size: 2.2rem;
  color: var(--tx-white);
  margin-bottom: 12px;
}
.tx-page-banner-content p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* --- 内页内容 --- */
.tx-page-content {
  padding: 48px 0;
}
.tx-page-content h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
  color: var(--tx-dark-light);
}
.tx-page-content h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}
.tx-page-content p {
  margin-bottom: 16px;
  line-height: 1.8;
  color: var(--tx-text);
}
.tx-page-content .tx-highlight-box {
  background: linear-gradient(135deg, rgba(232,67,147,0.05), rgba(108,92,231,0.05));
  border-left: 4px solid var(--tx-primary);
  padding: 20px 24px;
  border-radius: 0 var(--tx-radius-sm) var(--tx-radius-sm) 0;
  margin: 24px 0;
}

/* --- 联系页面 --- */
.tx-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
.tx-contact-info-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 28px;
  box-shadow: var(--tx-shadow);
}
.tx-contact-info-card h3 {
  font-size: 1.15rem;
  margin-bottom: 16px;
  color: var(--tx-primary);
}
.tx-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.92rem;
}
.tx-contact-item strong {
  min-width: 80px;
  color: var(--tx-dark-light);
}

/* --- 响应式设计 --- */
@media (max-width: 1024px) {
  .tx-video-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .tx-card-grid-5 { grid-template-columns: repeat(3, 1fr); }
  .tx-ai-features { grid-template-columns: repeat(2, 1fr); }
  .tx-community-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-expert-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-howto-steps { grid-template-columns: repeat(2, 1fr); }
  .tx-review-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .tx-nav { display: none; }
  .tx-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(26,16,40,0.98);
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid rgba(232,67,147,0.2);
  }
  .tx-menu-btn { display: flex; }
  .tx-banner-title { font-size: 1.8rem; }
  .tx-banner-subtitle { font-size: 0.95rem; }
  .tx-banner-btns { flex-direction: column; align-items: center; }
  .tx-banner-stats { gap: 20px; }
  .tx-stat-num { font-size: 1.4rem; }
  .tx-section { padding: 40px 0; }
  .tx-section-title { font-size: 1.5rem; }
  .tx-video-grid { grid-template-columns: 1fr; }
  .tx-card-grid-4,
  .tx-card-grid-5,
  .tx-card-grid-3 { grid-template-columns: 1fr; }
  .tx-ai-features { grid-template-columns: 1fr; }
  .tx-community-grid { grid-template-columns: 1fr; }
  .tx-expert-grid { grid-template-columns: 1fr; }
  .tx-howto-steps { grid-template-columns: 1fr; }
  .tx-review-grid { grid-template-columns: 1fr; }
  .tx-footer-grid { grid-template-columns: 1fr; }
  .tx-contact-grid { grid-template-columns: 1fr; }
  .tx-page-banner { min-height: 200px; }
  .tx-page-banner-content h1 { font-size: 1.6rem; }
  .tx-banner { min-height: 400px; }
}

@media (max-width: 480px) {
  .tx-container { padding: 0 14px; }
  .tx-banner-title { font-size: 1.5rem; }
  .tx-section-title { font-size: 1.3rem; }
  .tx-btn { padding: 10px 20px; font-size: 0.92rem; }
}

/* --- EEAT权威声明栏 --- */
.tx-eeat-bar {
  background: linear-gradient(90deg, #F0EBFA, #FFF0F6);
  padding: 12px 0;
  border-bottom: 1px solid var(--tx-border);
}
.tx-eeat-inline {
  font-size: 0.82rem;
  color: var(--tx-text-light);
  line-height: 1.6;
  text-align: center;
}
.tx-eeat-inline strong {
  color: var(--tx-primary);
}

/* --- 页脚EEAT内容审核声明 --- */
.tx-eeat-notice {
  background: rgba(232,67,147,0.05);
  border: 1px solid rgba(232,67,147,0.15);
  border-radius: var(--tx-radius-sm);
  padding: 16px 20px;
  margin-bottom: 32px;
}
.tx-eeat-text {
  font-size: 0.82rem;
  color: var(--tx-text-light);
  line-height: 1.7;
}
.tx-eeat-text strong {
  color: var(--tx-primary);
}

/* --- 专家资质标签 --- */
.tx-expert-credential {
  font-size: 0.78rem;
  color: var(--tx-secondary);
  background: rgba(108,92,231,0.08);
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 8px;
}

/* --- 视频标签 --- */
.tx-video-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--tx-primary);
  color: white;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  z-index: 2;
}
.tx-card-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--tx-primary), var(--tx-secondary));
  color: white;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 20px;
  margin-top: 8px;
}