/* 国产主播 全站样式表 - 原创设计 */
/* 设计哲学：暗色电竞风 + 金橙色调 + 动感渐变 */

:root {
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --primary-light: #fbbf24;
  --accent: #ec4899;
  --accent-dark: #be185d;
  --bg-dark: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #252545;
  --text-white: #f8fafc;
  --text-gray: #94a3b8;
  --text-muted: #64748b;
  --border-color: #2d2d4a;
  --gradient-primary: linear-gradient(135deg, #f59e0b, #ec4899);
  --gradient-dark: linear-gradient(180deg, #0f0f1a 0%, #1a1a2e 100%);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 20px rgba(245,158,11,0.2);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

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

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

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

/* 头部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 20px;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo img {
  height: 42px;
  width: auto;
}

.site-logo span {
  font-size: 1.2rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.main-nav a {
  color: var(--text-gray);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-white);
  background: var(--bg-card);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* 搜索框 */
.search-bar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 20px;
  margin-top: 68px;
}

.search-bar-inner {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.search-bar input {
  width: 100%;
  padding: 10px 44px 10px 16px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  color: var(--text-white);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.search-bar input:focus {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.search-bar button {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  color: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Banner */
.hero-banner {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-banner .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-banner .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15,15,26,0.92) 0%, rgba(15,15,26,0.6) 50%, rgba(15,15,26,0.2) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  padding: 60px 20px 60px 40px;
}

.hero-content h1 {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--text-gray);
  margin-bottom: 24px;
  line-height: 1.8;
}

.hero-content .btn-primary {
  display: inline-block;
  padding: 12px 32px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(245,158,11,0.3);
}

.hero-content .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245,158,11,0.4);
}

/* 通用板块 */
.section {
  padding: 60px 0;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-white);
}

.section-title span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  color: var(--text-gray);
  font-size: 1rem;
  margin-bottom: 36px;
}

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

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

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

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

.video-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.video-card .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 56px;
  height: 56px;
  background: rgba(245,158,11,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  opacity: 0;
}

.video-card:hover .play-btn {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.video-card .play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-left: 16px solid #fff;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  margin-left: 4px;
}

.video-card .thumb .duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
}

.video-card .card-body {
  padding: 14px 16px;
}

.video-card .card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-card .card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.video-card .card-meta .views::before {
  content: '▶ ';
}

.video-card .card-meta .likes::before {
  content: '♥ ';
}

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

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

.module-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.module-card .icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.module-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-white);
}

.module-card p {
  font-size: 0.88rem;
  color: var(--text-gray);
  line-height: 1.6;
}

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

.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}

.expert-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.expert-card .avatar {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

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

.expert-card .name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.expert-card .role {
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.expert-card .desc {
  font-size: 0.82rem;
  color: var(--text-gray);
  line-height: 1.5;
}

.expert-card .actions {
  padding: 0 16px 16px;
  display: flex;
  gap: 8px;
}

.expert-card .actions a {
  flex: 1;
  padding: 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  text-align: center;
  background: var(--bg-dark);
  color: var(--primary);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.expert-card .actions a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

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

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

.faq-item summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-white);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--primary);
  transition: var(--transition);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item .faq-answer {
  padding: 0 20px 16px;
  color: var(--text-gray);
  font-size: 0.9rem;
  line-height: 1.7;
}

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

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

.review-card .stars {
  color: var(--primary);
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.review-card .text {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.6;
  margin-bottom: 12px;
}

.review-card .author {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* 页脚 */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text-white);
}

.footer-col p,
.footer-col a {
  font-size: 0.85rem;
  color: var(--text-gray);
  display: block;
  margin-bottom: 8px;
}

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

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

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

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

.footer-qr .qr-item span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom .update-time {
  margin-top: 6px;
}

/* 社交分享 */
.share-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.share-bar a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.82rem;
  color: var(--text-gray);
  transition: var(--transition);
}

.share-bar a:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(245,158,11,0.1);
  color: var(--primary);
  border-radius: 4px;
  font-size: 0.75rem;
  margin-right: 6px;
  margin-bottom: 6px;
}

/* 面包屑 */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--text-muted);
}

/* 响应式 */
@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 16px;
  }

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

  .nav-toggle {
    display: block;
  }

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

  .hero-banner {
    min-height: 400px;
  }

  .hero-content {
    padding: 40px 20px;
  }

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

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

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

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

  .section-title {
    font-size: 1.4rem;
  }
}

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

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

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

/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
}

/* JSON-LD 隐藏 */
script[type="application/ld+json"] {
  display: none;
}