/* ============================================
   蜜芽vlog 原创样式表
   品牌色: 紫晶 #6B2FA0 | 珊瑚粉 #FF6B8A | 星辰青 #00D4FF
   辅助色: 深空紫 #1A0B2E | 暮光灰 #2D1B4E | 月光白 #F8F4FF
   ============================================ */

/* --- 基础重置与变量 --- */
:root {
  --tx-purple: #6B2FA0;
  --tx-purple-dark: #4A1D73;
  --tx-purple-light: #9B5ED0;
  --tx-coral: #FF6B8A;
  --tx-coral-dark: #E8506F;
  --tx-cyan: #00D4FF;
  --tx-cyan-dark: #00A8CC;
  --tx-bg-dark: #1A0B2E;
  --tx-bg-mid: #2D1B4E;
  --tx-bg-light: #F8F4FF;
  --tx-bg-white: #FFFFFF;
  --tx-text-primary: #1A0B2E;
  --tx-text-secondary: #5A4A6E;
  --tx-text-light: #8A7A9E;
  --tx-text-white: #FFFFFF;
  --tx-border: #E8DFF2;
  --tx-shadow: 0 4px 20px rgba(107, 47, 160, 0.1);
  --tx-shadow-hover: 0 8px 32px rgba(107, 47, 160, 0.2);
  --tx-radius: 12px;
  --tx-radius-sm: 8px;
  --tx-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --tx-container: 1200px;
  --tx-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--tx-font);
  color: var(--tx-text-primary);
  background: var(--tx-bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--tx-purple); text-decoration: none; transition: var(--tx-transition); }
a:hover { color: var(--tx-coral); }

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

ul { list-style: none; }

.tx-container {
  max-width: var(--tx-container);
  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, 11, 46, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(107, 47, 160, 0.3);
  transition: var(--tx-transition);
}

.tx-header .tx-container {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 24px;
}

.tx-nav-brand { flex-shrink: 0; }

.tx-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.tx-nav-menu { flex: 1; }

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

.tx-nav-item a {
  display: block;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  border-radius: var(--tx-radius-sm);
  transition: var(--tx-transition);
  white-space: nowrap;
}

.tx-nav-item a:hover,
.tx-nav-item.active a {
  color: var(--tx-text-white);
  background: rgba(107, 47, 160, 0.4);
}

.tx-nav-search { flex-shrink: 0; }

.tx-search-form {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--tx-transition);
}

.tx-search-form:focus-within {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--tx-purple-light);
}

.tx-search-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--tx-text-white);
  padding: 8px 16px;
  font-size: 14px;
  width: 180px;
}

.tx-search-input::placeholder { color: rgba(255, 255, 255, 0.5); }

.tx-search-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  padding: 8px 12px;
  cursor: pointer;
  transition: var(--tx-transition);
  display: flex;
  align-items: center;
}

.tx-search-btn:hover { color: var(--tx-cyan); }

.tx-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.tx-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--tx-text-white);
  border-radius: 2px;
  transition: var(--tx-transition);
}

/* --- 面包屑 --- */
.tx-breadcrumb {
  margin-top: 68px;
  padding: 12px 0;
  background: var(--tx-bg-light);
  border-bottom: 1px solid var(--tx-border);
}

.tx-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--tx-text-light);
}

.tx-breadcrumb li:not(:last-child)::after {
  content: "›";
  margin-left: 8px;
  color: var(--tx-text-light);
}

.tx-breadcrumb a { color: var(--tx-text-secondary); }
.tx-breadcrumb a:hover { color: var(--tx-purple); }

/* --- Hero 主视觉 --- */
.tx-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

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

.tx-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 11, 46, 0.85) 0%, rgba(107, 47, 160, 0.5) 50%, rgba(0, 212, 255, 0.2) 100%);
}

.tx-hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 80px 20px 60px;
  margin: 0 auto;
  text-align: center;
}

.tx-hero-title {
  font-size: 42px;
  font-weight: 800;
  color: var(--tx-text-white);
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.tx-hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
}

.tx-hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 32px;
}

.tx-tag {
  display: inline-block;
  padding: 5px 16px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  color: var(--tx-text-white);
  font-size: 13px;
  backdrop-filter: blur(4px);
}

.tx-hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- 按钮 --- */
.tx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--tx-transition);
  border: 2px solid transparent;
  text-decoration: none;
}

.tx-btn-primary {
  background: linear-gradient(135deg, var(--tx-purple), var(--tx-coral));
  color: var(--tx-text-white);
}

.tx-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(107, 47, 160, 0.4);
  color: var(--tx-text-white);
}

.tx-btn-outline {
  background: transparent;
  border-color: var(--tx-text-white);
  color: var(--tx-text-white);
}

.tx-btn-outline:hover {
  background: var(--tx-text-white);
  color: var(--tx-purple);
}

.tx-btn-secondary {
  background: var(--tx-bg-light);
  color: var(--tx-purple);
  border-color: var(--tx-purple);
}

.tx-btn-secondary:hover {
  background: var(--tx-purple);
  color: var(--tx-text-white);
}

.tx-btn-sm {
  padding: 6px 18px;
  font-size: 13px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--tx-purple), var(--tx-coral));
  color: var(--tx-text-white);
}

.tx-btn-sm:hover { opacity: 0.9; color: #fff; }

.tx-btn-outline-sm {
  background: transparent;
  border: 1px solid var(--tx-purple);
  color: var(--tx-purple);
}

.tx-btn-outline-sm:hover {
  background: var(--tx-purple);
  color: var(--tx-text-white);
}

/* --- 通用区块 --- */
.tx-section {
  padding: 72px 0;
}

.tx-section:nth-child(even) {
  background: var(--tx-bg-light);
}

.tx-section-header {
  text-align: center;
  margin-bottom: 48px;
}

.tx-section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--tx-text-primary);
  margin-bottom: 12px;
  position: relative;
}

.tx-section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--tx-purple), var(--tx-coral));
  margin: 12px auto 0;
  border-radius: 2px;
}

.tx-section-desc {
  font-size: 16px;
  color: var(--tx-text-secondary);
  max-width: 680px;
  margin: 0 auto;
}

.tx-section-more {
  text-align: center;
  margin-top: 40px;
}

/* --- 视频卡片网格 --- */
.tx-video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.tx-video-card {
  background: var(--tx-bg-white);
  border-radius: var(--tx-radius);
  overflow: hidden;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
}

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

.tx-video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--tx-bg-dark);
}

.tx-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.tx-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 11, 46, 0.4);
  opacity: 0;
  transition: var(--tx-transition);
  cursor: pointer;
}

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

.tx-play-btn {
  width: 64px;
  height: 64px;
  background: rgba(107, 47, 160, 0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--tx-transition);
}

.tx-play-btn:hover {
  background: var(--tx-coral);
  transform: scale(1.1);
}

.tx-video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.75);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.tx-video-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: linear-gradient(135deg, var(--tx-purple), var(--tx-coral));
  color: white;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
}

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

.tx-video-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--tx-text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tx-video-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--tx-text-light);
  margin-bottom: 8px;
}

.tx-video-desc {
  font-size: 13px;
  color: var(--tx-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- 服务卡片 --- */
.tx-service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tx-service-card {
  background: var(--tx-bg-white);
  border-radius: var(--tx-radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border: 1px solid transparent;
}

.tx-service-card:hover {
  transform: translateY(-4px);
  border-color: var(--tx-purple-light);
  box-shadow: var(--tx-shadow-hover);
}

.tx-service-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(107, 47, 160, 0.1), rgba(255, 107, 138, 0.1));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tx-purple);
}

.tx-service-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--tx-text-primary);
}

.tx-service-card p {
  font-size: 14px;
  color: var(--tx-text-secondary);
  line-height: 1.7;
}

/* --- 娱乐专区 --- */
.tx-ent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.tx-ent-card {
  position: relative;
  border-radius: var(--tx-radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 16/9;
}

.tx-ent-large {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
  aspect-ratio: auto;
}

.tx-ent-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.tx-ent-card:hover img {
  transform: scale(1.08);
}

.tx-ent-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 16px 16px;
  background: linear-gradient(transparent, rgba(26, 11, 46, 0.9));
  color: var(--tx-text-white);
}

.tx-ent-tag {
  display: inline-block;
  padding: 2px 10px;
  background: var(--tx-coral);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 6px;
}

.tx-ent-overlay h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.tx-ent-overlay p {
  font-size: 13px;
  opacity: 0.85;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- AI赋能 --- */
.tx-ai-section {
  background: linear-gradient(135deg, var(--tx-bg-dark), var(--tx-bg-mid)) !important;
  color: var(--tx-text-white);
}

.tx-ai-section .tx-section-title { color: var(--tx-text-white); }
.tx-ai-section .tx-section-title::after { background: linear-gradient(90deg, var(--tx-cyan), var(--tx-coral)); }
.tx-ai-section .tx-section-desc { color: rgba(255, 255, 255, 0.7); }

.tx-ai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tx-ai-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--tx-radius);
  padding: 32px 24px;
  transition: var(--tx-transition);
}

.tx-ai-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--tx-cyan);
  transform: translateY(-4px);
}

.tx-ai-num {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--tx-cyan), var(--tx-coral));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.tx-ai-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--tx-text-white);
}

.tx-ai-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
}

/* --- 专家团队 --- */
.tx-expert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tx-expert-card {
  display: flex;
  gap: 24px;
  background: var(--tx-bg-white);
  border-radius: var(--tx-radius);
  padding: 24px;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
}

.tx-expert-card:hover {
  box-shadow: var(--tx-shadow-hover);
  transform: translateY(-2px);
}

.tx-expert-avatar {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--tx-purple-light);
}

.tx-expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tx-expert-info h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--tx-text-primary);
  margin-bottom: 4px;
}

.tx-expert-role {
  display: inline-block;
  font-size: 13px;
  color: var(--tx-purple);
  font-weight: 500;
  margin-bottom: 10px;
}

.tx-expert-info p {
  font-size: 14px;
  color: var(--tx-text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.tx-expert-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.tx-expert-awards span {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(107, 47, 160, 0.08);
  border: 1px solid var(--tx-border);
  border-radius: 12px;
  font-size: 11px;
  color: var(--tx-purple);
}

.tx-expert-actions {
  display: flex;
  gap: 8px;
}

/* --- 社区功能 --- */
.tx-community-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tx-comm-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--tx-bg-white);
  border-radius: var(--tx-radius);
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border-bottom: 3px solid transparent;
}

.tx-comm-card:hover {
  transform: translateY(-4px);
  border-bottom-color: var(--tx-purple);
}

.tx-comm-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--tx-purple), var(--tx-coral));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tx-text-white);
}

.tx-comm-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.tx-comm-card p {
  font-size: 14px;
  color: var(--tx-text-secondary);
  line-height: 1.6;
}

/* --- 合作品牌 --- */
.tx-partner-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.tx-partner-item {
  background: var(--tx-bg-white);
  border: 1px solid var(--tx-border);
  border-radius: var(--tx-radius-sm);
  padding: 24px 16px;
  text-align: center;
  transition: var(--tx-transition);
}

.tx-partner-item:hover {
  border-color: var(--tx-purple-light);
  box-shadow: var(--tx-shadow);
}

.tx-partner-item span {
  font-size: 16px;
  font-weight: 600;
  color: var(--tx-text-primary);
}

/* --- 如何加入 --- */
.tx-howto-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tx-step {
  flex: 1;
  min-width: 200px;
  max-width: 240px;
  text-align: center;
  padding: 24px 16px;
}

.tx-step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--tx-purple), var(--tx-coral));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tx-text-white);
  font-size: 20px;
  font-weight: 700;
}

.tx-step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.tx-step p {
  font-size: 13px;
  color: var(--tx-text-secondary);
  line-height: 1.6;
}

.tx-step-arrow {
  font-size: 24px;
  color: var(--tx-purple-light);
  padding-top: 36px;
}

/* --- 用户评价 --- */
.tx-review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.tx-review-card {
  background: var(--tx-bg-white);
  border-radius: var(--tx-radius);
  padding: 24px;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border-left: 4px solid var(--tx-purple);
}

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

.tx-review-stars {
  color: #FFB800;
  font-size: 18px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.tx-review-text {
  font-size: 14px;
  color: var(--tx-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.tx-review-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

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

.tx-review-date {
  color: var(--tx-text-light);
}

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

.tx-faq-item {
  border: 1px solid var(--tx-border);
  border-radius: var(--tx-radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--tx-bg-white);
}

.tx-faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--tx-text-primary);
  text-align: left;
  transition: var(--tx-transition);
}

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

.tx-faq-question svg {
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.tx-faq-question.active svg {
  transform: rotate(180deg);
}

.tx-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.tx-faq-answer p {
  padding: 0 24px 18px;
  font-size: 14px;
  color: var(--tx-text-secondary);
  line-height: 1.8;
}

/* --- 联系我们 --- */
.tx-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.tx-contact-card {
  background: var(--tx-bg-white);
  border-radius: var(--tx-radius);
  padding: 32px;
  box-shadow: var(--tx-shadow);
}

.tx-contact-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--tx-text-primary);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--tx-border);
}

.tx-contact-info-list { display: flex; flex-direction: column; gap: 12px; }

.tx-contact-item {
  font-size: 14px;
  color: var(--tx-text-secondary);
  line-height: 1.6;
}

.tx-contact-item strong {
  color: var(--tx-text-primary);
}

.tx-qr-group {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
}

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

.tx-qr-item img {
  border-radius: var(--tx-radius-sm);
  margin-bottom: 8px;
}

.tx-qr-item span {
  font-size: 13px;
  color: var(--tx-text-secondary);
}

.tx-community-links p {
  font-size: 14px;
  color: var(--tx-text-secondary);
  margin-bottom: 6px;
}

/* --- 社交分享 --- */
.tx-share-section {
  padding: 32px 0 !important;
  background: var(--tx-bg-light) !important;
}

.tx-share-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.tx-share-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--tx-text-primary);
}

.tx-share-btns {
  display: flex;
  gap: 10px;
}

.tx-share-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--tx-text-white);
  transition: var(--tx-transition);
}

.tx-share-wechat { background: #07C160; }
.tx-share-weibo { background: #E6162D; }
.tx-share-douyin { background: #161823; }
.tx-share-bilibili { background: #00A1D6; }

.tx-share-btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
  color: var(--tx-text-white);
}

/* --- 页脚 --- */
.tx-footer {
  background: var(--tx-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 48px;
}

.tx-footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tx-footer-brand { }

.tx-footer-logo {
  height: 38px;
  width: auto;
  margin-bottom: 16px;
}

.tx-footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.tx-footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.tx-footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--tx-text-white);
  margin-bottom: 16px;
}

.tx-footer-col ul li {
  margin-bottom: 8px;
}

.tx-footer-col ul li a,
.tx-footer-col ul li {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

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

.tx-footer-qr {
  display: flex;
  gap: 16px;
}

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

.tx-footer-qr .tx-qr-item img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  margin-bottom: 6px;
}

.tx-footer-qr .tx-qr-item span {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
}

.tx-footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.tx-footer-bottom a {
  color: var(--tx-cyan);
}

.tx-footer-bottom p {
  margin-bottom: 4px;
}

/* --- 内页通用 --- */
.tx-page-hero {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 68px;
  overflow: hidden;
}

.tx-page-hero-bg {
  position: absolute;
  inset: 0;
}

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

.tx-page-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 11, 46, 0.88), rgba(107, 47, 160, 0.6));
}

.tx-page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 20px;
}

.tx-page-hero-content h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--tx-text-white);
  margin-bottom: 12px;
}

.tx-page-hero-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
}

.tx-page-content {
  padding: 60px 0;
}

.tx-page-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--tx-text-primary);
  margin-bottom: 16px;
  margin-top: 40px;
}

.tx-page-content h2:first-child { margin-top: 0; }

.tx-page-content p {
  font-size: 15px;
  color: var(--tx-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.tx-inner-video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

/* --- 懒加载占位 --- */
.tx-lazy {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.tx-lazy.tx-loaded {
  opacity: 1;
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .tx-video-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-service-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-ai-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-expert-grid { grid-template-columns: 1fr; }
  .tx-community-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-review-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-partner-wall { grid-template-columns: repeat(3, 1fr); }
  .tx-footer-top { grid-template-columns: 1fr; }
  .tx-ent-grid { grid-template-columns: 1fr 1fr; }
  .tx-ent-large { grid-column: 1 / -1; grid-row: auto; aspect-ratio: 16/9; }
}

@media (max-width: 768px) {
  .tx-header .tx-container { height: 56px; }
  .tx-nav-menu { display: none; position: fixed; top: 56px; left: 0; right: 0; background: var(--tx-bg-dark); padding: 16px; z-index: 999; }
  .tx-nav-menu.active { display: block; }
  .tx-nav-list { flex-direction: column; gap: 4px; }
  .tx-nav-item a { padding: 12px 16px; }
  .tx-nav-search { display: none; }
  .tx-nav-menu.active + .tx-nav-search,
  .tx-mobile-search-active .tx-nav-search { display: block; }
  .tx-mobile-toggle { display: flex; }
  .tx-breadcrumb { margin-top: 56px; }

  .tx-hero { min-height: 400px; }
  .tx-hero-title { font-size: 28px; }
  .tx-hero-subtitle { font-size: 15px; }
  .tx-hero-content { padding: 60px 16px 40px; }

  .tx-section { padding: 48px 0; }
  .tx-section-title { font-size: 24px; }

  .tx-video-grid { grid-template-columns: 1fr; }
  .tx-service-grid { grid-template-columns: 1fr; }
  .tx-ai-grid { grid-template-columns: 1fr; }
  .tx-community-grid { grid-template-columns: 1fr; }
  .tx-review-grid { grid-template-columns: 1fr; }
  .tx-contact-grid { grid-template-columns: 1fr; }
  .tx-partner-wall { grid-template-columns: repeat(2, 1fr); }
  .tx-ent-grid { grid-template-columns: 1fr; }

  .tx-howto-steps { flex-direction: column; align-items: center; }
  .tx-step-arrow { transform: rotate(90deg); padding: 0; }
  .tx-step { max-width: 100%; }

  .tx-expert-card { flex-direction: column; align-items: center; text-align: center; }
  .tx-expert-awards { justify-content: center; }
  .tx-expert-actions { justify-content: center; }

  .tx-footer-links { grid-template-columns: 1fr; }
  .tx-footer-qr { justify-content: center; }

  .tx-page-hero { min-height: 200px; }
  .tx-page-hero-content h1 { font-size: 26px; }
  .tx-inner-video-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .tx-hero-title { font-size: 24px; }
  .tx-hero-btns { flex-direction: column; }
  .tx-btn { width: 100%; }
  .tx-qr-group { flex-direction: column; align-items: center; }
  .tx-share-bar { flex-direction: column; }
  .tx-share-btns { flex-wrap: wrap; justify-content: center; }
}