/* ===== 动漫 - 动物写真与视频社区 全站样式 ===== */
/* 原创配色：森林绿 #1a6b3c | 深墨 #1a1a2e | 暖金 #d4a843 | 象牙白 #f8f6f0 | 珊瑚橙 #e8734a */

:root {
  --color-primary: #1a6b3c;
  --color-primary-dark: #0f4d2a;
  --color-primary-light: #2d9d5a;
  --color-secondary: #1a1a2e;
  --color-accent: #d4a843;
  --color-accent-warm: #e8734a;
  --color-bg: #f8f6f0;
  --color-bg-alt: #efeae0;
  --color-text: #2c2c2c;
  --color-text-light: #6b6b6b;
  --color-white: #ffffff;
  --color-border: #d9d3c7;
  --shadow-sm: 0 2px 8px rgba(26,26,46,0.08);
  --shadow-md: 0 4px 20px rgba(26,26,46,0.12);
  --shadow-lg: 0 8px 40px rgba(26,26,46,0.16);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

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

body {
  font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  -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; }

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

/* ===== 顶部导航 ===== */
.site-header {
  background: var(--color-secondary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  max-width: 1200px;
  margin: 0 auto;
  height: 68px;
}

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

.site-logo img {
  height: 42px;
  width: 42px;
  border-radius: 50%;
}

.site-logo span {
  color: var(--color-accent);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
}

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

.main-nav a {
  color: var(--color-white);
  padding: 22px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--color-accent);
  transition: var(--transition);
  border-radius: 2px;
}

.main-nav a:hover { color: var(--color-accent); }
.main-nav a:hover::after { width: 60%; }

/* 搜索框 */
.search-bar {
  background: var(--color-primary-dark);
  padding: 10px 0;
}

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

.search-box {
  display: flex;
  max-width: 600px;
  width: 100%;
  background: var(--color-white);
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.search-box input {
  flex: 1;
  border: none;
  padding: 10px 20px;
  font-size: 0.95rem;
  outline: none;
  background: transparent;
  color: var(--color-text);
}

.search-box button {
  background: var(--color-accent);
  border: none;
  padding: 10px 24px;
  color: var(--color-white);
  font-size: 0.95rem;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.search-box button:hover { background: var(--color-accent-warm); }

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

.breadcrumb a { color: var(--color-primary); }
.breadcrumb span { margin: 0 6px; }

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

.hero-banner .banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55);
}

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

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
  line-height: 1.3;
}

.hero-content h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-content p {
  font-size: 1.2rem;
  opacity: 0.92;
  margin-bottom: 28px;
  text-shadow: 0 1px 10px rgba(0,0,0,0.3);
}

.hero-btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 14px 36px;
  border-radius: 30px;
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(212,168,67,0.4);
}

.hero-btn:hover {
  background: var(--color-accent-warm);
  transform: translateY(-2px);
  color: var(--color-white);
}

/* ===== 通用区块 ===== */
.section {
  padding: 60px 0;
}

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

.section-dark {
  background: var(--color-secondary);
  color: var(--color-white);
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}

.section-dark .section-title h2 { color: var(--color-white); }

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

.section-title p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-title p { color: rgba(255,255,255,0.7); }

/* ===== 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(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}

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

.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: var(--transition);
}

.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: 60px;
  height: 60px;
  background: rgba(26,107,60,0.85);
  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: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--color-white);
  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: var(--color-white);
  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;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-text-light);
}

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

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

.expert-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
  border: 3px solid var(--color-accent);
}

.expert-card h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
  color: var(--color-secondary);
}

.expert-card .role {
  color: var(--color-primary);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 10px;
}

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

.expert-card .btn-sm {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.85rem;
  transition: var(--transition);
  margin: 0 4px;
}

.expert-card .btn-sm:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

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

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  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(--color-primary); }

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

.faq-item.active .faq-question::after {
  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-light);
  font-size: 0.95rem;
}

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

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

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

.review-card::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.3;
  position: absolute;
  top: 8px;
  left: 16px;
  line-height: 1;
}

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

.review-text {
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: 14px;
  line-height: 1.7;
}

.review-author {
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-weight: 600;
}

/* ===== 模块卡片 ===== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.module-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border-top: 3px solid transparent;
}

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

.module-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--color-white);
}

.module-card h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--color-secondary);
}

.module-card p {
  font-size: 0.88rem;
  color: var(--color-text-light);
}

/* ===== 社区功能 ===== */
.community-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}

.community-tag {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.9rem;
  transition: var(--transition);
}

.community-tag:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ===== 合作品牌墙 ===== */
.brand-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
  align-items: center;
  padding: 20px 0;
}

.brand-wall-item {
  background: var(--color-white);
  padding: 16px 28px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
  color: var(--color-text-light);
  font-size: 0.95rem;
  transition: var(--transition);
}

.brand-wall-item:hover {
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

/* ===== 联系我们 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.contact-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.contact-item h4 {
  font-size: 1.1rem;
  color: var(--color-secondary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.contact-item p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

/* ===== 社交分享 ===== */
.share-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 24px;
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.share-btn:hover { opacity:0.85; transform:translateY(-2px); color:var(--color-white); }

.share-wechat { background:#07c160; }
.share-weibo { background:#e6162d; }
.share-douyin { background:#161823; }
.share-bilibili { background:#00a1d6; }

/* ===== 底部 ===== */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255,255,255,0.75);
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h5 {
  color: var(--color-accent);
  font-size: 1.05rem;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col p, .footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 2;
  display: block;
}

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

.footer-col img { border-radius: var(--radius-sm); margin-top:8px; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-logo img { height:40px; width:40px; border-radius:50%; }
.footer-logo span { color:var(--color-accent); font-size:1.3rem; font-weight:700; }

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

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

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

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

.howto-step::before {
  counter-increment: step;
  content: counter(step);
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.howto-step div h4 {
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--color-secondary);
}

.howto-step div p {
  font-size: 0.92rem;
  color: var(--color-text-light);
}

/* ===== 内页通用 ===== */
.page-header {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary-dark));
  padding: 50px 0;
  text-align: center;
  color: var(--color-white);
}

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

.page-header p {
  font-size: 1.05rem;
  opacity: 0.85;
}

.page-content {
  padding: 40px 0 60px;
}

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

.page-content article h2 {
  font-size: 1.6rem;
  color: var(--color-secondary);
  margin: 30px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}

.page-content article h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin: 20px 0 10px;
}

.page-content article p {
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.85;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.tag {
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  padding: 4px 14px;
  border-radius: 14px;
  font-size: 0.82rem;
}

/* ===== 移动端适配 ===== */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 768px) {
  .header-inner { height:56px; }
  
  .mobile-menu-btn { display:block; }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-secondary);
    flex-direction: column;
    padding: 10px 0;
    box-shadow: var(--shadow-lg);
  }
  
  .main-nav.active { display:flex; }
  
  .main-nav a { padding:12px 20px; border-bottom:1px solid rgba(255,255,255,0.05); }
  
  .hero-banner { height:380px; }
  .hero-content h1 { font-size:1.8rem; }
  .hero-content p { font-size:1rem; }
  
  .section { padding:40px 0; }
  .section-title h2 { font-size:1.5rem; }
  
  .video-grid { grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:16px; }
  .expert-grid { grid-template-columns:1fr; }
  .module-grid { grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  
  .page-header h1 { font-size:1.6rem; }
}

@media (max-width: 480px) {
  .hero-banner { height:300px; }
  .hero-content h1 { font-size:1.5rem; }
  .video-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .contact-grid { grid-template-columns:1fr; }
}

/* ===== 懒加载 ===== */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.5s ease;
}

img[loading="lazy"].loaded, img[loading="lazy"][src] {
  opacity: 1;
}

/* ===== 干扰标签隐藏 ===== */
.noise-wrap {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  z-index: -9999;
}