/* ============================================
   糖心 - 动物写真与视频社区 全站样式
   品牌色: 琥珀金 #D4920B / 深炭 #1A1A2E / 暖白 #FFF8F0
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:#2D2D3A;background:#FFF8F0;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s}
a:hover{color:#D4920B}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#1A1A2E}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-padding{padding:60px 0}

/* === 顶部导航 === */
.site-header{background:#1A1A2E;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto}
.logo-wrap span{color:#D4920B;font-size:22px;font-weight:800;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{color:#E8E8EC;font-size:15px;padding:8px 14px;border-radius:6px;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#D4920B;color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#E8E8EC;border-radius:2px;transition:all .3s}

/* === 搜索框 === */
.search-bar{background:#151528;padding:12px 0;border-bottom:1px solid rgba(212,146,11,.2)}
.search-bar-inner{display:flex;justify-content:center;align-items:center;gap:10px}
.search-bar input{width:420px;max-width:70%;padding:10px 18px;border:2px solid #D4920B;border-radius:25px;background:#1A1A2E;color:#FFF8F0;font-size:14px;outline:none;transition:border-color .3s}
.search-bar input::placeholder{color:#8888A0}
.search-bar input:focus{border-color:#F0A500}
.search-bar button{background:#D4920B;color:#fff;border:none;padding:10px 24px;border-radius:25px;font-size:14px;cursor:pointer;font-weight:600;transition:background .3s}
.search-bar button:hover{background:#B87A08}

/* === 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;filter:brightness(.55)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:780px;padding:0 20px}
.hero-content h1{font-size:42px;margin-bottom:16px;text-shadow:0 3px 12px rgba(0,0,0,.5)}
.hero-content h1 em{font-style:normal;color:#D4920B}
.hero-content p{font-size:18px;line-height:1.8;text-shadow:0 2px 8px rgba(0,0,0,.4);margin-bottom:24px}
.hero-btn{display:inline-block;background:#D4920B;color:#fff;padding:14px 36px;border-radius:30px;font-size:16px;font-weight:700;transition:all .3s;box-shadow:0 4px 16px rgba(212,146,11,.4)}
.hero-btn:hover{background:#B87A08;transform:translateY(-2px);color:#fff}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:13px;color:#8888A0}
.breadcrumb a{color:#D4920B}
.breadcrumb span{margin:0 6px}

/* === 区块标题 === */
.section-title{text-align:center;margin-bottom:42px}
.section-title h2{font-size:32px;color:#1A1A2E;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:"";display:block;width:60px;height:4px;background:#D4920B;margin:10px auto 0;border-radius:2px}
.section-title p{color:#6B6B80;font-size:15px;margin-top:8px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .35s;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(0,0,0,.12)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#1A1A2E}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(212,146,11,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;pointer-events:none}
.play-btn::after{content:"";border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card:hover .play-btn{opacity:1}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.video-info{padding:16px}
.video-info h3{font-size:16px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:14px;font-size:12px;color:#8888A0}
.video-meta span{display:flex;align-items:center;gap:4px}

/* === 动物传媒模块 === */
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.media-card{background:linear-gradient(135deg,#1A1A2E 0%,#2D2D4A 100%);border-radius:14px;padding:32px 24px;text-align:center;color:#E8E8EC;transition:all .35s}
.media-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(212,146,11,.2)}
.media-card .icon{font-size:42px;margin-bottom:16px}
.media-card h4{color:#D4920B;font-size:18px;margin-bottom:10px}
.media-card p{font-size:14px;line-height:1.7;color:#B0B0C0}

/* === AI赋能 === */
.ai-section{background:linear-gradient(135deg,#1A1A2E 0%,#0D0D1A 100%);color:#E8E8EC}
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ai-card{background:rgba(255,255,255,.05);border:1px solid rgba(212,146,11,.2);border-radius:14px;padding:30px;transition:all .35s}
.ai-card:hover{border-color:#D4920B;background:rgba(212,146,11,.08)}
.ai-card h4{color:#D4920B;font-size:18px;margin-bottom:12px}
.ai-card p{font-size:14px;line-height:1.8;color:#B0B0C0}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.expert-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .35s;text-align:center}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,.1)}
.expert-card img{width:100%;height:220px;object-fit:cover}
.expert-card .info{padding:20px}
.expert-card h4{font-size:18px;color:#1A1A2E;margin-bottom:6px}
.expert-card .role{color:#D4920B;font-size:13px;font-weight:600;margin-bottom:10px}
.expert-card p{font-size:13px;color:#6B6B80;line-height:1.7;margin-bottom:14px}
.expert-card .btns{display:flex;gap:10px;justify-content:center}
.expert-card .btns a{padding:7px 16px;border-radius:20px;font-size:12px;font-weight:600;transition:all .3s}
.btn-primary{background:#D4920B;color:#fff}
.btn-primary:hover{background:#B87A08;color:#fff}
.btn-outline{border:1px solid #D4920B;color:#D4920B}
.btn-outline:hover{background:#D4920B;color:#fff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid #E8E8EC;padding:18px 0}
.faq-item summary{font-size:16px;font-weight:600;color:#1A1A2E;cursor:pointer;padding:4px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::after{content:"+";font-size:22px;color:#D4920B;transition:transform .3s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:12px 0 4px;font-size:14px;color:#6B6B80;line-height:1.8}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 16px rgba(0,0,0,.05);transition:all .3s}
.review-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1)}
.review-stars{color:#D4920B;font-size:16px;margin-bottom:10px;letter-spacing:2px}
.review-card blockquote{font-size:14px;color:#4A4A5A;line-height:1.8;margin-bottom:14px;font-style:italic}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:#D4920B;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.review-author .name{font-weight:600;font-size:14px;color:#1A1A2E}
.review-author .date{font-size:12px;color:#8888A0}

/* === 社区模块 === */
.community-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.community-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 14px rgba(0,0,0,.05);transition:all .3s;text-align:center}
.community-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.1)}
.community-card img{width:100%;height:160px;object-fit:cover}
.community-card h4{padding:14px 12px 4px;font-size:15px;color:#1A1A2E}
.community-card p{padding:0 12px 14px;font-size:13px;color:#8888A0}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.contact-card{background:#fff;border-radius:12px;padding:28px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.05)}
.contact-card h4{color:#D4920B;font-size:17px;margin-bottom:12px}
.contact-card p{font-size:14px;color:#6B6B80;line-height:1.8}
.contact-card img{max-width:160px;margin:14px auto 0;border-radius:8px}

/* === 合作品牌 === */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall img{height:50px;opacity:.6;transition:opacity .3s;filter:grayscale(1)}
.partner-wall img:hover{opacity:1;filter:grayscale(0)}

/* === 社交分享 === */
.share-bar{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:25px;font-size:13px;font-weight:600;color:#fff;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#1A1A2E}
.share-bilibili{background:#00A1D6}

/* === 页脚 === */
.site-footer{background:#1A1A2E;color:#B0B0C0;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-col h5{color:#D4920B;font-size:16px;margin-bottom:16px}
.footer-col p,.footer-col a{font-size:13px;color:#8888A0;line-height:2}
.footer-col a:hover{color:#D4920B}
.footer-col img{max-width:120px;border-radius:6px;margin-top:8px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo img{height:36px}
.footer-logo span{color:#D4920B;font-size:20px;font-weight:800}
.footer-bottom{text-align:center;padding:20px 0;font-size:13px;color:#6B6B80}
.footer-bottom a{color:#D4920B}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px}
.howto-step{background:#fff;border-radius:12px;padding:28px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.05);position:relative}
.howto-step .step-num{width:44px;height:44px;background:#D4920B;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;margin:0 auto 16px}
.howto-step h4{font-size:16px;margin-bottom:10px;color:#1A1A2E}
.howto-step p{font-size:13px;color:#6B6B80;line-height:1.7}

/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,#1A1A2E 0%,#2D2D4A 100%);padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:36px;color:#fff;margin-bottom:10px}
.page-hero h1 em{font-style:normal;color:#D4920B}
.page-hero p{font-size:16px;color:#B0B0C0}
.content-section{padding:48px 0}
.content-section h2{font-size:26px;color:#1A1A2E;margin-bottom:18px}
.content-section h3{font-size:20px;color:#2D2D3A;margin-bottom:12px}
.content-section p{font-size:15px;color:#4A4A5A;line-height:1.9;margin-bottom:16px}
.content-section ul{margin:12px 0 20px 20px}
.content-section ul li{font-size:14px;color:#4A4A5A;line-height:2;position:relative;padding-left:16px}
.content-section ul li::before{content:"";width:6px;height:6px;background:#D4920B;border-radius:50%;position:absolute;left:0;top:10px}

/* === 标签云 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.tag-cloud span{background:#F5F0E8;color:#6B6B80;padding:6px 14px;border-radius:20px;font-size:12px;transition:all .3s;cursor:pointer}
.tag-cloud span:hover{background:#D4920B;color:#fff}

/* === 响应式 === */
@media(max-width:992px){
  .media-grid,.ai-grid{grid-template-columns:repeat(2,1fr)}
  .hero-content h1{font-size:32px}
  .hero-banner{height:400px}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#1A1A2E;flex-direction:column;padding:16px;gap:4px;box-shadow:0 8px 20px rgba(0,0,0,.2)}
  .main-nav.active{display:flex}
  .nav-toggle{display:flex}
  .media-grid,.ai-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:26px}
  .hero-content p{font-size:15px}
  .hero-banner{height:340px}
  .section-title h2{font-size:24px}
  .search-bar input{width:260px}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
}
@media(max-width:480px){
  .header-inner{height:56px}
  .logo-wrap span{font-size:18px}
  .hero-banner{height:280px}
  .hero-content h1{font-size:22px}
  .section-padding{padding:40px 0}
  .video-grid{grid-template-columns:1fr}
}

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

/* === HTML5 Video播放器 === */
#featured-video video{border-radius:12px}
#featured-video video::-webkit-media-controls-panel{background:linear-gradient(transparent,rgba(0,0,0,.6))}

/* === 最新动态 === */
.community-card p{font-size:12px;color:#8888A0;padding:0 12px 14px}

/* === 信任标识 === */
.footer-bottom p{margin:4px 0}
.footer-bottom a{margin:0 4px}