/* ============================================
   动漫之家 - 阿斯顿马丁风格主题 CSS
   域名: ccchz.cn
   ============================================ */

/* --- CSS变量 --- */
:root {
  --am-green: #005C3A;
  --am-dark: #0A1A12;
  --am-silver: #C0C5C1;
  --am-gold: #B8860B;
  --am-white: #F5F5F0;
  --am-bg: #0D1F15;
  --am-card: #112A1E;
  --am-border: #1E3D2E;
  --am-text: #D4DDD7;
  --am-accent: #00E676;
  --am-hover: #00C853;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: all 0.3s ease;
}

/* --- 全局重置 --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--am-bg);
  color: var(--am-text);
  line-height: 1.8;
  overflow-x: hidden;
}
a { color: var(--am-accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--am-hover); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- 头部导航 --- */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(10,26,18,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--am-border);
  transition: var(--transition);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 68px;
}
.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { width: 42px; height: 42px; border-radius: 50%; }
.site-logo span { font-size: 1.3rem; font-weight: 700; color: #fff; letter-spacing: 1px; }
.main-nav { display: flex; gap: 6px; }
.main-nav a {
  padding: 8px 16px; border-radius: 6px; font-size: 0.9rem;
  color: var(--am-silver); font-weight: 500; transition: var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  background: var(--am-green); color: #fff;
}
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 32px; height: 32px; position: relative;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: #fff;
  position: absolute; left: 4px; transition: var(--transition);
}
.nav-toggle span:nth-child(1) { top: 8px; }
.nav-toggle span:nth-child(2) { top: 15px; }
.nav-toggle span:nth-child(3) { top: 22px; }

/* --- 搜索框 --- */
.search-bar {
  background: var(--am-card); border-bottom: 1px solid var(--am-border);
  padding: 12px 0; margin-top: 68px;
}
.search-wrap {
  max-width: 600px; margin: 0 auto; position: relative;
}
.search-wrap input {
  width: 100%; padding: 12px 48px 12px 20px; border: 1px solid var(--am-border);
  border-radius: 30px; background: var(--am-bg); color: #fff;
  font-size: 0.95rem; outline: none; transition: var(--transition);
}
.search-wrap input:focus { border-color: var(--am-accent); box-shadow: 0 0 0 3px rgba(0,230,118,0.15); }
.search-wrap input::placeholder { color: #6B8F7B; }
.search-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: var(--am-green); border: none; border-radius: 50%;
  width: 36px; height: 36px; cursor: pointer; color: #fff; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}

/* --- 面包屑 --- */
.breadcrumb {
  padding: 14px 0; font-size: 0.85rem; color: #6B8F7B;
}
.breadcrumb a { color: var(--am-accent); }
.breadcrumb span { margin: 0 6px; }

/* --- Banner --- */
.hero-banner {
  position: relative; height: 72vh; min-height: 480px;
  overflow: hidden; margin-top: 0;
}
.hero-banner img {
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(0.55);
}
.hero-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 20px;
  background: linear-gradient(180deg, rgba(10,26,18,0.3) 0%, rgba(10,26,18,0.8) 100%);
}
.hero-overlay h1 {
  font-size: 3rem; font-weight: 800; color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,0.6); margin-bottom: 16px;
}
.hero-overlay h2 {
  font-size: 1.3rem; font-weight: 400; color: var(--am-silver);
  max-width: 700px; margin-bottom: 28px;
}
.hero-btn {
  display: inline-block; padding: 14px 36px; background: var(--am-green);
  color: #fff; border-radius: 30px; font-size: 1.05rem; font-weight: 600;
  transition: var(--transition); border: 2px solid transparent;
}
.hero-btn:hover {
  background: transparent; border-color: var(--am-accent); color: var(--am-accent);
  transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,230,118,0.2);
}

/* --- 通用区块 --- */
.section { padding: 70px 0; }
.section-dark { background: var(--am-dark); }
.section-alt { background: linear-gradient(135deg, var(--am-bg) 0%, #0F2419 100%); }
.section-title {
  text-align: center; margin-bottom: 48px;
}
.section-title h2 {
  font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 12px;
  position: relative; display: inline-block;
}
.section-title h2::after {
  content: ''; position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 50px; height: 3px; background: var(--am-accent); border-radius: 2px;
}
.section-title p { color: #7FA892; font-size: 1rem; margin-top: 16px; }

/* --- 视频卡片网格 --- */
.video-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.video-card {
  background: var(--am-card); border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--am-border);
  transition: var(--transition); cursor: pointer; position: relative;
}
.video-card:hover {
  transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,92,58,0.3);
  border-color: var(--am-green);
}
.video-thumb {
  position: relative; padding-top: 56.25%; overflow: hidden;
}
.video-thumb video, .video-thumb img {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover;
}
.video-play-btn {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 60px; height: 60px; background: rgba(0,92,58,0.85);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: var(--transition); z-index: 5;
}
.video-play-btn::after {
  content: ''; width: 0; height: 0;
  border-left: 20px solid #fff; border-top: 12px solid transparent; border-bottom: 12px solid transparent;
  margin-left: 4px;
}
.video-card:hover .video-play-btn { opacity: 1; }
.video-duration {
  position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.8);
  color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 0.8rem; z-index: 5;
}
.video-info { padding: 16px; }
.video-info h3 {
  font-size: 1rem; font-weight: 600; color: #fff;
  margin-bottom: 8px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.video-meta {
  display: flex; gap: 14px; font-size: 0.8rem; color: #6B8F7B;
  flex-wrap: wrap; align-items: center;
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-date { font-size: 0.78rem; color: #5A7D6A; margin-top: 6px; }
.video-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.video-tags span {
  padding: 2px 10px; background: rgba(0,92,58,0.25); color: var(--am-accent);
  border-radius: 12px; font-size: 0.75rem;
}

/* --- 短视频网格 --- */
.shorts-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
}
.short-card {
  background: var(--am-card); border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--am-border);
  transition: var(--transition); cursor: pointer; position: relative;
}
.short-card:hover { transform: scale(1.03); border-color: var(--am-green); }
.short-thumb { position: relative; padding-top: 160%; overflow: hidden; }
.short-thumb img {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover;
}
.short-card:hover .video-play-btn { opacity: 1; }
.short-info { padding: 10px 12px; }
.short-info h4 {
  font-size: 0.85rem; color: #fff; font-weight: 500;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.short-meta { font-size: 0.75rem; color: #6B8F7B; margin-top: 4px; }

/* --- 专家卡片 --- */
.expert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.expert-card {
  background: var(--am-card); border-radius: var(--radius);
  padding: 28px 20px; text-align: center; border: 1px solid var(--am-border);
  transition: var(--transition);
}
.expert-card:hover { border-color: var(--am-green); transform: translateY(-4px); }
.expert-card img {
  width: 100px; height: 100px; border-radius: 50%; margin: 0 auto 16px;
  border: 3px solid var(--am-green); object-fit: cover;
}
.expert-card h4 { color: #fff; font-size: 1.05rem; margin-bottom: 4px; }
.expert-card .role { color: var(--am-accent); font-size: 0.85rem; margin-bottom: 10px; }
.expert-card p { font-size: 0.85rem; color: #7FA892; line-height: 1.6; }
.expert-cert { font-size: 0.78rem; color: var(--am-gold); margin-top: 8px; }
.expert-btns { display: flex; gap: 8px; justify-content: center; margin-top: 14px; }
.expert-btns a {
  padding: 6px 14px; border: 1px solid var(--am-green); border-radius: 20px;
  font-size: 0.8rem; color: var(--am-accent); transition: var(--transition);
}
.expert-btns a:hover { background: var(--am-green); color: #fff; }

/* --- AI赋能 --- */
.ai-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ai-card {
  background: linear-gradient(145deg, var(--am-card) 0%, #0A2016 100%);
  border-radius: var(--radius); padding: 32px 24px;
  border: 1px solid var(--am-border); transition: var(--transition);
  text-align: center;
}
.ai-card:hover { border-color: var(--am-accent); box-shadow: 0 0 30px rgba(0,230,118,0.1); }
.ai-icon {
  width: 64px; height: 64px; margin: 0 auto 18px;
  background: rgba(0,92,58,0.3); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
}
.ai-card h4 { color: #fff; font-size: 1.05rem; margin-bottom: 10px; }
.ai-card p { font-size: 0.88rem; color: #7FA892; }

/* --- 社区板块 --- */
.community-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.community-card {
  background: var(--am-card); border-radius: var(--radius);
  padding: 24px; border: 1px solid var(--am-border);
  transition: var(--transition);
}
.community-card:hover { border-color: var(--am-accent); }
.community-card h4 { color: #fff; font-size: 1rem; margin-bottom: 8px; }
.community-card p { font-size: 0.88rem; color: #7FA892; }
.community-stats { display: flex; gap: 16px; margin-top: 12px; font-size: 0.8rem; color: var(--am-accent); }

/* --- FAQ --- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--am-card); border: 1px solid var(--am-border);
  border-radius: var(--radius); margin-bottom: 12px; overflow: hidden;
}
.faq-question {
  padding: 18px 24px; cursor: pointer; display: flex;
  justify-content: space-between; align-items: center;
  font-weight: 600; color: #fff; font-size: 0.95rem;
  transition: var(--transition);
}
.faq-question:hover { color: var(--am-accent); }
.faq-question::after { content: '+'; font-size: 1.4rem; color: var(--am-accent); transition: var(--transition); }
.faq-item.active .faq-question::after { content: '-'; }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease;
}
.faq-answer p { padding: 0 24px 18px; font-size: 0.9rem; color: #7FA892; line-height: 1.8; }
.faq-item.active .faq-answer { max-height: 300px; }

/* --- 用户评论 --- */
.review-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.review-card {
  background: var(--am-card); border-radius: var(--radius);
  padding: 24px; border: 1px solid var(--am-border);
}
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--am-green); display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 1.1rem;
}
.review-name { color: #fff; font-weight: 600; font-size: 0.95rem; }
.review-stars { color: var(--am-gold); font-size: 0.85rem; }
.review-text { font-size: 0.9rem; color: #7FA892; line-height: 1.7; }
.review-date { font-size: 0.78rem; color: #5A7D6A; margin-top: 8px; }

/* --- 合作品牌墙 --- */
.brand-wall {
  display: flex; flex-wrap: wrap; gap: 20px; justify-content: center;
  align-items: center;
}
.brand-wall-item {
  background: var(--am-card); border: 1px solid var(--am-border);
  border-radius: var(--radius); padding: 18px 28px;
  color: var(--am-silver); font-size: 0.95rem; font-weight: 600;
  transition: var(--transition);
}
.brand-wall-item:hover { border-color: var(--am-accent); color: #fff; }

/* --- 联系我们 --- */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.contact-card {
  background: var(--am-card); border-radius: var(--radius);
  padding: 30px; border: 1px solid var(--am-border);
}
.contact-card h4 { color: #fff; font-size: 1.1rem; margin-bottom: 16px; }
.contact-card p { font-size: 0.9rem; color: #7FA892; margin-bottom: 8px; }
.contact-card strong { color: var(--am-accent); }
.qr-wrap { display: flex; gap: 24px; margin-top: 16px; }
.qr-wrap img { width: 120px; height: 120px; border-radius: var(--radius); }
.qr-wrap .qr-label { font-size: 0.8rem; color: #6B8F7B; text-align: center; margin-top: 6px; }

/* --- 分享按钮 --- */
.share-bar { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; padding: 20px 0; }
.share-btn {
  padding: 10px 20px; border-radius: 24px; font-size: 0.88rem;
  border: 1px solid var(--am-border); color: var(--am-silver);
  background: var(--am-card); transition: var(--transition); cursor: pointer;
}
.share-btn:hover { border-color: var(--am-accent); color: var(--am-accent); }

/* --- EEAT信任标识 --- */
.trust-bar {
  display: flex; gap: 30px; justify-content: center; flex-wrap: wrap;
  padding: 24px 0; border-top: 1px solid var(--am-border);
  border-bottom: 1px solid var(--am-border); margin: 30px 0;
}
.trust-item { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--am-silver); }
.trust-icon { color: var(--am-accent); font-size: 1.2rem; }

/* --- 页脚 --- */
.site-footer {
  background: var(--am-dark); border-top: 1px solid var(--am-border);
  padding: 50px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px;
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
}
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer-col p, .footer-col a { font-size: 0.85rem; color: #6B8F7B; display: block; margin-bottom: 8px; }
.footer-col a:hover { color: var(--am-accent); }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo img { width: 36px; height: 36px; border-radius: 50%; }
.footer-logo span { font-size: 1.1rem; font-weight: 700; color: #fff; }
.footer-bottom {
  text-align: center; padding: 24px 20px; margin-top: 40px;
  border-top: 1px solid var(--am-border); font-size: 0.82rem; color: #5A7D6A;
}
.footer-eeat { max-width: 1200px; margin: 0 auto; padding: 20px; }
.footer-eeat p { font-size: 0.8rem; color: #4A6D5A; line-height: 1.7; }

/* --- How-To指南 --- */
.howto-steps { max-width: 700px; margin: 0 auto; }
.howto-step {
  display: flex; gap: 20px; align-items: flex-start; margin-bottom: 24px;
}
.step-num {
  width: 44px; height: 44px; min-width: 44px; border-radius: 50%;
  background: var(--am-green); color: #fff; display: flex;
  align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem;
}
.step-content h4 { color: #fff; font-size: 1rem; margin-bottom: 4px; }
.step-content p { font-size: 0.88rem; color: #7FA892; }

/* --- 视频播放器模拟 --- */
.video-modal {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.9); z-index: 9999;
  align-items: center; justify-content: center;
}
.video-modal.active { display: flex; }
.video-modal-inner {
  width: 90%; max-width: 800px; background: #000; border-radius: 12px;
  overflow: hidden; position: relative;
}
.video-modal-close {
  position: absolute; top: 12px; right: 16px; color: #fff;
  font-size: 2rem; cursor: pointer; z-index: 10; line-height: 1;
}
.video-player-sim {
  width: 100%; padding-top: 56.25%; background: #111; position: relative;
}
.video-player-sim .play-center {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 80px; height: 80px; background: rgba(0,92,58,0.9); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.video-player-sim .play-center::after {
  content: ''; width: 0; height: 0;
  border-left: 28px solid #fff; border-top: 16px solid transparent; border-bottom: 16px solid transparent;
  margin-left: 6px;
}

/* --- 内页通用 --- */
.page-hero {
  padding: 100px 0 40px; text-align: center;
  background: linear-gradient(135deg, var(--am-dark) 0%, var(--am-bg) 100%);
}
.page-hero h1 { font-size: 2.2rem; color: #fff; margin-bottom: 12px; }
.page-hero p { color: #7FA892; font-size: 1rem; }
.page-content { padding: 50px 0; }

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .shorts-grid { grid-template-columns: repeat(3, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav {
    display: none; position: fixed; top: 68px; left: 0; width: 100%;
    background: rgba(10,26,18,0.98); flex-direction: column;
    padding: 20px; gap: 4px; border-bottom: 1px solid var(--am-border);
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-banner { height: 50vh; min-height: 360px; }
  .hero-overlay h1 { font-size: 1.8rem; }
  .hero-overlay h2 { font-size: 1rem; }
  .video-grid { grid-template-columns: 1fr; }
  .shorts-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 40px 0; }
  .section-title h2 { font-size: 1.5rem; }
}
@media (max-width: 480px) {
  .shorts-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .header-inner { height: 56px; }
  .search-bar { margin-top: 56px; }
  .qr-wrap { flex-direction: column; align-items: center; }
}

/* --- 懒加载 --- */
.lazy { opacity: 0; transition: opacity 0.5s ease; }
.lazy.loaded { opacity: 1; }

/* --- 动画 --- */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* --- 媒体报道与行业荣誉 --- */
.awards-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.award-item {
  background: var(--am-card); border: 1px solid var(--am-border);
  border-radius: var(--radius); padding: 24px; transition: var(--transition);
}
.award-item:hover { border-color: var(--am-gold); transform: translateY(-3px); }
.award-item h4 { color: var(--am-gold); font-size: 1rem; margin-bottom: 10px; }
.award-item p { font-size: 0.88rem; color: #7FA892; line-height: 1.7; }
@media (max-width: 768px) {
  .awards-grid { grid-template-columns: 1fr; }
}

/* --- 免责声明与版权声明 --- */
.footer-disclaimer {
  max-width: 1200px; margin: 0 auto; padding: 16px 20px;
  border-top: 1px solid var(--am-border);
}
.footer-disclaimer p {
  font-size: 0.78rem; color: #4A6D5A; line-height: 1.7; margin-bottom: 6px;
}

/* --- 内容块（法律页面）--- */
.content-block {
  max-width: 900px; margin: 0 auto; padding: 20px 0;
}
.content-block h2 {
  color: #fff; font-size: 1.3rem; margin: 30px 0 12px;
  padding-bottom: 8px; border-bottom: 1px solid var(--am-border);
}
.content-block h3 {
  color: var(--am-accent); font-size: 1.1rem; margin: 24px 0 10px;
}
.content-block p {
  font-size: 0.92rem; color: var(--am-text); line-height: 1.8; margin-bottom: 14px;
}

/* --- 短视频video标签适配 --- */
.short-thumb video {
  width: 100%; height: 100%; object-fit: cover;
  position: absolute; top: 0; left: 0; border-radius: var(--radius) var(--radius) 0 0;
}