/* ===== 抖阴 - 动物写真与视频社区 全站样式 ===== */
/* 原创配色：森林金 #D4A843 | 深墨绿 #1A3C34 | 暖象牙 #F5F0E8 | 珊瑚橙 #E8734A | 天青蓝 #4A90D9 */

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

:root {
  --gold: #D4A843;
  --dark-green: #1A3C34;
  --ivory: #F5F0E8;
  --coral: #E8734A;
  --blue: #4A90D9;
  --text-dark: #2C2C2C;
  --text-light: #6B6B6B;
  --bg-light: #FAFAF7;
  --bg-card: #FFFFFF;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.15);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

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

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

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

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

/* ===== 顶部导航 ===== */
.site-header {
  background: var(--dark-green);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gold);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
}

.site-logo img {
  height: 40px;
  width: 40px;
  border-radius: 8px;
}

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

.main-nav a {
  color: var(--ivory);
  padding: 20px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--gold);
  background: rgba(212,168,67,0.1);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--gold);
  transition: var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after { width: 60%; }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--ivory);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===== 搜索框 ===== */
.search-bar {
  background: linear-gradient(135deg, var(--dark-green) 0%, #2A5C4E 100%);
  padding: 16px 0;
}

.search-bar .container {
  display: flex;
  justify-content: center;
}

.search-wrapper {
  display: flex;
  max-width: 600px;
  width: 100%;
  background: #fff;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.search-wrapper input {
  flex: 1;
  border: none;
  padding: 12px 24px;
  font-size: 1rem;
  outline: none;
  color: var(--text-dark);
}

.search-wrapper button {
  background: var(--gold);
  border: none;
  padding: 12px 28px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.search-wrapper button:hover { background: var(--coral); }

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

.hero-banner img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(26,60,52,0.6) 0%, rgba(26,60,52,0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 0 20px;
  max-width: 800px;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
  line-height: 1.3;
}

.hero-content h1 span { color: var(--gold); }

.hero-content p {
  font-size: 1.15rem;
  line-height: 1.8;
  opacity: 0.95;
  margin-bottom: 28px;
}

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

.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: #C09A38; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212,168,67,0.4); color: #fff; }

.btn-outline { background: transparent; color: #fff; border: 2px solid var(--gold); }
.btn-outline:hover { background: var(--gold); color: #fff; transform: translateY(-2px); }

/* ===== 通用板块 ===== */
.section { padding: 72px 0; }
.section-alt { background: #fff; }

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

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark-green);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gold);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

/* ===== 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;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
}

.video-thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 64px;
  height: 64px;
  background: rgba(212,168,67,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 0 12px 22px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}

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

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

.video-info { padding: 16px; }

.video-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;
}

.video-meta {
  display: flex;
  gap: 16px;
  color: var(--text-light);
  font-size: 0.85rem;
}

.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== 分类标签模块 ===== */
.category-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.category-tab {
  padding: 8px 24px;
  border-radius: 20px;
  background: var(--bg-card);
  color: var(--text-dark);
  font-size: 0.9rem;
  font-weight: 500;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.category-tab:hover,
.category-tab.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(212,168,67,0.08);
}

/* ===== 专家卡片 ===== */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--gold);
}

.expert-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.expert-card .role {
  color: var(--gold);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.expert-card p {
  color: var(--text-light);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.expert-links { display: flex; gap: 8px; justify-content: center; }

.expert-links a {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--gold);
  color: var(--gold);
}

.expert-links a:hover { background: var(--gold); color: #fff; }

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

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  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 { color: var(--gold); }

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--gold);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  content: '-';
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-light);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding: 0 24px 18px;
  max-height: 300px;
}

/* ===== 用户评论 ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
}

.review-card::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--gold);
  opacity: 0.2;
  position: absolute;
  top: 8px;
  left: 16px;
  font-family: Georgia, serif;
}

.review-stars { color: var(--gold); margin-bottom: 12px; font-size: 1.1rem; }

.review-card p {
  color: var(--text-dark);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gold);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.review-author-info .name { font-weight: 600; font-size: 0.9rem; }
.review-author-info .date { color: var(--text-light); font-size: 0.8rem; }

/* ===== AI赋能模块 ===== */
.ai-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-feature-card {
  background: linear-gradient(135deg, var(--dark-green) 0%, #2A5C4E 100%);
  border-radius: var(--radius);
  padding: 32px 24px;
  color: #fff;
  text-align: center;
  transition: var(--transition);
}

.ai-feature-card:hover { transform: translateY(-4px); }

.ai-icon {
  width: 64px;
  height: 64px;
  background: rgba(212,168,67,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.8rem;
}

.ai-feature-card h4 { font-size: 1.1rem; margin-bottom: 10px; }
.ai-feature-card p { opacity: 0.85; font-size: 0.9rem; line-height: 1.6; }

/* ===== 社区模块 ===== */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.community-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.community-item:hover {
  transform: translateY(-4px);
  border-bottom: 3px solid var(--gold);
}

.community-item h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.community-item p { color: var(--text-light); font-size: 0.85rem; }

/* ===== 联系我们 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  text-align: center;
}

.contact-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--dark-green);
}

.contact-card p { color: var(--text-light); font-size: 0.9rem; line-height: 1.7; }

/* ===== 合作品牌 ===== */
.partner-logos {
  display: flex;
  gap: 32px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  padding: 24px 0;
}

.partner-logos span {
  background: var(--bg-card);
  padding: 16px 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-weight: 600;
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ===== 分享按钮 ===== */
.share-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.share-btn {
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  transition: var(--transition);
}

.share-btn:hover { transform: translateY(-2px); color: #fff; }
.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #161823; }
.share-bilibili { background: #00A1D6; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark-green);
  color: var(--ivory);
  padding: 48px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--gold);
}

.footer-col p, .footer-col a {
  color: rgba(245,240,232,0.75);
  font-size: 0.9rem;
  line-height: 2;
  display: block;
}

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

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

.footer-qr div {
  width: 90px;
  height: 90px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.footer-qr div canvas { border-radius: 4px; }

.footer-qr-label {
  font-size: 0.75rem;
  text-align: center;
  margin-top: 4px;
  color: rgba(245,240,232,0.6);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(245,240,232,0.5);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-logo img {
  height: 32px;
  width: 32px;
  border-radius: 6px;
}

.footer-logo span {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.88rem;
  color: var(--text-light);
}

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

/* ===== 内页Banner ===== */
.page-banner {
  background: linear-gradient(135deg, var(--dark-green) 0%, #2A5C4E 100%);
  padding: 48px 0;
  text-align: center;
  color: #fff;
}

.page-banner h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.page-banner p {
  opacity: 0.85;
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 内页内容区 ===== */
.page-content {
  padding: 48px 0;
}

.content-article {
  max-width: 900px;
  margin: 0 auto;
}

.content-article h2 {
  font-size: 1.6rem;
  color: var(--dark-green);
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gold);
}

.content-article h3 {
  font-size: 1.3rem;
  color: var(--dark-green);
  margin: 24px 0 12px;
}

.content-article p {
  margin-bottom: 16px;
  line-height: 1.8;
  color: var(--text-dark);
}

/* ===== 标签云 ===== */
.tag-cloud {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0;
}

.tag {
  padding: 4px 14px;
  background: rgba(212,168,67,0.1);
  color: var(--gold);
  border-radius: 16px;
  font-size: 0.82rem;
  font-weight: 500;
}

/* ===== How-To 指南 ===== */
.howto-steps {
  max-width: 700px;
  margin: 0 auto;
}

.howto-step {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.step-num {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--gold);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
}

.step-content h4 { font-size: 1.05rem; margin-bottom: 6px; }
.step-content p { color: var(--text-light); font-size: 0.92rem; }

/* ===== MCP服务前端代码区 ===== */
.mcp-widget {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-top: 24px;
}

.mcp-widget h4 { margin-bottom: 12px; color: var(--dark-green); }

.mcp-input-group {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.mcp-input-group input {
  flex: 1;
  padding: 10px 16px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.mcp-input-group input:focus { border-color: var(--gold); }

.mcp-input-group button {
  padding: 10px 20px;
  background: var(--gold);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.mcp-input-group button:hover { background: var(--coral); }

/* ===== 干扰标签隐藏 ===== */
.drtag { position: absolute; width: 0; height: 0; overflow: hidden; opacity: 0; pointer-events: none; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-features { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--dark-green); padding: 16px 0; box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 24px; }
  .mobile-menu-btn { display: block; }
  .hero-banner { height: 400px; }
  .hero-content h1 { font-size: 1.8rem; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; }
  .ai-features { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .header-inner { padding: 0 16px; }
}

@media (max-width: 480px) {
  .hero-banner { height: 320px; }
  .hero-content h1 { font-size: 1.5rem; }
  .hero-content p { font-size: 0.95rem; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 1.5rem; }
}