/* ============================================
   视频直播互动平台 - 全站样式表
   独特配色方案：渐变紫红+深空蓝+亮橙
   ============================================ */

/* 干扰标签区块隐藏样式 */
.jammer-block {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  opacity: 0;
  pointer-events: none;
  user-select: none;
}

/* CSS变量定义 */
:root {
  --color-primary: #ff2d55;
  --color-primary-dark: #d91a40;
  --color-secondary: #6c5ce7;
  --color-accent: #ff9f43;
  --color-bg-dark: #0a0e27;
  --color-bg-section: #111540;
  --color-bg-card: #1a1f4e;
  --color-text: #e8e8f0;
  --color-text-muted: #9a9abf;
  --color-border: #2a2f6e;
  --color-success: #00d2d3;
  --color-warning: #feca57;
  --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-heading: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-hover: 0 12px 48px rgba(255,45,85,0.2);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --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: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

/* 容器 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============ 顶部导航 ============ */
.site-header {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #151a4a 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  font-family: var(--font-heading);
}

.site-logo img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

.site-logo span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.main-nav a {
  color: var(--color-text-muted);
  padding: 10px 18px;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-text);
  background: rgba(255,45,85,0.1);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 8px;
}

/* ============ 面包屑导航 ============ */
.breadcrumb {
  padding: 16px 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 span {
  margin: 0 8px;
  color: var(--color-border);
}

/* ============ 英雄区域 ============ */
.hero-section {
  position: relative;
  padding: 80px 0 60px;
  background: linear-gradient(160deg, var(--color-bg-dark) 0%, #1a1060 40%, #2d1b69 70%, var(--color-bg-dark) 100%);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,45,85,0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 4s ease-in-out infinite;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(108,92,231,0.12) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 5s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.1); opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  font-family: var(--font-heading);
  background: linear-gradient(135deg, #fff 0%, #e8e8f0 50%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

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

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #ff6b81);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255,45,85,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,45,85,0.5);
  color: #fff;
}

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

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(255,45,85,0.05);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), #ffbe76);
  color: #1a1a2e;
  box-shadow: 0 4px 20px rgba(255,159,67,0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,159,67,0.5);
  color: #1a1a2e;
}

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

/* ============ 区块标题 ============ */
.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  font-family: var(--font-heading);
  color: var(--color-text);
}

.section-title h2 span {
  color: var(--color-primary);
}

.section-title p {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

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

.section-alt {
  background: var(--color-bg-section);
}

/* ============ 直播分类筛选 ============ */
.filter-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-tab {
  padding: 8px 22px;
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition);
}

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

/* ============ 直播卡片网格 ============ */
.live-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.live-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
}

.live-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
}

.live-card-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

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

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

.live-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}

.live-badge-live {
  background: var(--color-primary);
  animation: badge-pulse 2s infinite;
}

@keyframes badge-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.live-badge-hot {
  background: var(--color-accent);
}

.live-badge-promo {
  background: var(--color-success);
}

.live-viewers {
  position: absolute;
  bottom: 12px;
  right: 12px;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  background: rgba(0,0,0,0.7);
  color: #fff;
  backdrop-filter: blur(4px);
}

.live-card-info {
  padding: 16px;
}

.live-card-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.live-card-host {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.live-card-host img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

/* ============ 热门商品秒杀 ============ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

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

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

.product-card-img {
  aspect-ratio: 1/1;
  overflow: hidden;
  position: relative;
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-discount {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--color-primary);
  color: #fff;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.product-card-body {
  padding: 14px;
}

.product-card-body h4 {
  font-size: 0.95rem;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.product-price .current {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-price .original {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.product-sales {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* ============ 买家秀 ============ */
.ugc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

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

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

.ugc-card-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}

.ugc-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ugc-play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  background: rgba(255,45,85,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.ugc-card-body {
  padding: 14px;
}

.ugc-user {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.ugc-user img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.ugc-user .name {
  font-size: 0.9rem;
  font-weight: 600;
}

.ugc-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.ugc-stars {
  color: var(--color-warning);
  font-size: 0.85rem;
  margin-top: 6px;
}

/* ============ 榜单 ============ */
.ranking-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.ranking-panel {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.ranking-panel-header {
  padding: 18px 20px;
  background: linear-gradient(135deg, rgba(255,45,85,0.15), rgba(108,92,231,0.15));
  border-bottom: 1px solid var(--color-border);
  font-size: 1.1rem;
  font-weight: 700;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(42,47,110,0.5);
  transition: var(--transition);
}

.ranking-item:last-child {
  border-bottom: none;
}

.ranking-item:hover {
  background: rgba(255,45,85,0.05);
}

.ranking-num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--color-bg-dark);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.ranking-num.top1 { background: linear-gradient(135deg, #ffd700, #ffaa00); color: #1a1a2e; }
.ranking-num.top2 { background: linear-gradient(135deg, #c0c0c0, #a0a0a0); color: #1a1a2e; }
.ranking-num.top3 { background: linear-gradient(135deg, #cd7f32, #b06020); color: #fff; }

.ranking-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.ranking-info {
  flex: 1;
  min-width: 0;
}

.ranking-info .name {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ranking-info .stat {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.ranking-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
}

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

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

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

.faq-question:hover {
  background: rgba(255,45,85,0.05);
}

.faq-question .icon {
  font-size: 1.2rem;
  color: var(--color-primary);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  padding: 0 24px 18px;
  max-height: 500px;
}

/* ============ 直播间详情页 ============ */
.live-detail-hero {
  background: linear-gradient(180deg, #1a1060 0%, var(--color-bg-dark) 100%);
  padding: 30px 0 40px;
}

.live-player-wrapper {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  margin-bottom: 30px;
}

.video-player {
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.video-player img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.play-btn-large {
  width: 80px;
  height: 80px;
  background: rgba(255,45,85,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  transition: var(--transition);
}

.play-btn-large:hover {
  transform: scale(1.1);
  background: var(--color-primary);
}

.chat-panel {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  max-height: 500px;
}

.chat-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px 18px;
}

.chat-msg {
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.chat-msg .author {
  color: var(--color-secondary);
  font-weight: 600;
  margin-right: 6px;
}

.chat-msg .text {
  color: var(--color-text-muted);
}

.chat-input-area {
  padding: 12px 18px;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 10px;
}

.chat-input-area input {
  flex: 1;
  background: var(--color-bg-dark);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 8px 16px;
  color: var(--color-text);
  font-size: 0.9rem;
  outline: none;
}

.chat-input-area input:focus {
  border-color: var(--color-primary);
}

.live-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

/* ============ 商品详情页 ============ */
.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 40px 0;
}

.product-gallery {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.product-gallery img {
  width: 100%;
  border-radius: var(--radius-lg);
}

.product-detail-info h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}

.product-detail-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.product-detail-price .current {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.product-detail-price .original {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.product-detail-price .discount-tag {
  background: var(--color-primary);
  color: #fff;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
}

.product-meta {
  margin-bottom: 24px;
}

.product-meta-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(42,47,110,0.3);
  font-size: 0.95rem;
}

.product-meta-item .label {
  color: var(--color-text-muted);
  min-width: 80px;
}

.product-buy-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
}

/* ============ 评论区 ============ */
.review-section {
  padding: 40px 0;
}

.review-summary {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 30px;
  padding: 24px;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.review-score {
  text-align: center;
}

.review-score .number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-warning);
}

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

.review-bars {
  flex: 1;
}

.review-bar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 0.85rem;
}

.review-bar-item .bar {
  flex: 1;
  height: 8px;
  background: var(--color-bg-dark);
  border-radius: 4px;
  overflow: hidden;
}

.review-bar-item .bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-warning), var(--color-accent));
  border-radius: 4px;
}

.review-list {
  margin-top: 24px;
}

.review-item {
  padding: 20px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
}

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

.review-item-header img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.review-item-header .info .name {
  font-weight: 600;
  font-size: 0.95rem;
}

.review-item-header .info .date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.review-item-body {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.review-item-images {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.review-item-images img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

/* ============ 用户中心 ============ */
.user-center-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  padding: 40px 0;
}

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

.user-profile {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.user-profile img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 12px;
  object-fit: cover;
  border: 3px solid var(--color-primary);
}

.user-profile .name {
  font-size: 1.1rem;
  font-weight: 700;
}

.user-profile .level {
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-top: 4px;
}

.user-menu a {
  display: block;
  padding: 12px 16px;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.user-menu a:hover,
.user-menu a.active {
  background: rgba(255,45,85,0.1);
  color: var(--color-text);
}

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

.user-content h2 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.user-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.user-stat-card {
  background: var(--color-bg-dark);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.user-stat-card .number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
}

.user-stat-card .label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ============ 专题页 ============ */
.topic-hero {
  padding: 60px 0;
  background: linear-gradient(135deg, #2d1b69 0%, #1a1060 50%, var(--color-bg-dark) 100%);
  text-align: center;
}

.topic-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topic-hero p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.topic-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 30px auto;
  max-width: 900px;
}

.topic-banner img {
  width: 100%;
}

/* ============ 下载页面 ============ */
.download-section {
  text-align: center;
  padding: 80px 0;
}

.download-mockup {
  max-width: 300px;
  margin: 0 auto 30px;
}

.download-mockup img {
  width: 100%;
  border-radius: var(--radius-lg);
}

.download-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.download-qr {
  margin-top: 30px;
}

.download-qr p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 10px;
}

/* ============ 页脚 ============ */
.site-footer {
  background: linear-gradient(180deg, var(--color-bg-section) 0%, #080b1e 100%);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 14px;
}

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

.footer-col a {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 4px 0;
}

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

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-text-muted);
  margin: 0 8px;
}

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

.age-badge {
  display: inline-block;
  border: 2px solid var(--color-primary);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-left: 10px;
}

/* ============ 动画 ============ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .live-player-wrapper {
    grid-template-columns: 1fr;
  }
  .product-detail-layout {
    grid-template-columns: 1fr;
  }
  .user-center-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-dark);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    z-index: 99;
  }

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

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

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

  .hero-content p {
    font-size: 1rem;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }

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

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

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

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

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

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

  .review-summary {
    flex-direction: column;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .product-buy-actions {
    flex-direction: column;
  }

  .container {
    padding: 0 16px;
  }

  .section {
    padding: 48px 0;
  }
}

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

  .hero-content h1 {
    font-size: 1.5rem;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* ============ 滚动条美化 ============ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* ============ 选中文本 ============ */
::selection {
  background: rgba(255,45,85,0.3);
  color: #fff;
}

/* ============ 表格样式 ============ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background: var(--color-bg-dark);
  font-weight: 600;
  color: var(--color-text);
}

.data-table tr:hover {
  background: rgba(255,45,85,0.03);
}

/* ============ 标签 ============ */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  background: rgba(108,92,231,0.15);
  color: var(--color-secondary);
  margin: 2px 4px;
}

.tag-hot {
  background: rgba(255,45,85,0.15);
  color: var(--color-primary);
}

.tag-promo {
  background: rgba(255,159,67,0.15);
  color: var(--color-accent);
}

/* ============ 隐私政策样式 ============ */
.policy-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
}

.policy-content h1 {
  font-size: 2rem;
  margin-bottom: 24px;
}

.policy-content h2 {
  font-size: 1.4rem;
  margin: 30px 0 14px;
  color: var(--color-primary);
}

.policy-content p {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 14px;
}

/* ============ 懒加载占位 ============ */
img[loading="lazy"] {
  background: var(--color-bg-card);
  min-height: 100px;
}