/* ============================================
   欧美系列 - 影视传媒视频社区 全站样式
   品牌色：深海蓝 #0d1b2a | 金色 #d4a843 | 暗蓝 #1b2838
   ============================================ */

/* === 重置与基础 === */
*,*::before,*::after{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;color:#e0e0e0;background:#0a0f1a;line-height:1.7;overflow-x:hidden}
a{color:#d4a843;text-decoration:none;transition:color .3s}
a:hover{color:#f0c060}
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:#fff}

/* === 容器 === */
.container{max-width:1280px;margin:0 auto;padding:0 20px}
.section-padding{padding:60px 0}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(13,27,42,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(212,168,67,.15);transition:all .3s}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.header-logo{display:flex;align-items:center;gap:10px}
.header-logo img{height:42px;width:auto}
.header-logo span{font-size:1.35rem;font-weight:800;color:#d4a843;letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;font-size:.9rem;color:#ccc;border-radius:6px;transition:all .3s;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#d4a843;background:rgba(212,168,67,.1)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#d4a843;transition:all .3s}

/* === 搜索框 === */
.search-bar{background:linear-gradient(135deg,#0d1b2a 0%,#162a3e 100%);padding:14px 0;border-bottom:1px solid rgba(212,168,67,.1)}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:620px;width:100%;position:relative}
.search-form input{flex:1;padding:12px 20px;background:rgba(255,255,255,.08);border:1px solid rgba(212,168,67,.3);border-radius:30px 0 0 30px;color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-form input:focus{border-color:#d4a843}
.search-form input::placeholder{color:#888}
.search-form button{padding:12px 28px;background:linear-gradient(135deg,#d4a843,#b8912e);border:none;border-radius:0 30px 30px 0;color:#0d1b2a;font-weight:700;font-size:.95rem;cursor:pointer;transition:all .3s}
.search-form button:hover{background:linear-gradient(135deg,#e8bc5a,#d4a843)}

/* === Hero Banner === */
.hero-section{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;margin-top:68px;background:linear-gradient(135deg,#0d1b2a 0%,#1a2940 50%,#0d1b2a 100%)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.35}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,27,42,.7) 0%,rgba(13,27,42,.9) 100%);z-index:1}
.hero-content{position:relative;z-index:2;text-align:center;max-width:800px;margin:0 auto;padding:60px 20px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;background:linear-gradient(135deg,#d4a843,#f0d080);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content h2{font-size:1.3rem;color:#aab;font-weight:400;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:30px}
.hero-tags span{padding:6px 18px;background:rgba(212,168,67,.12);border:1px solid rgba(212,168,67,.3);border-radius:20px;font-size:.85rem;color:#d4a843}
.hero-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-primary{padding:14px 36px;background:linear-gradient(135deg,#d4a843,#b8912e);color:#0d1b2a;font-weight:700;border-radius:30px;font-size:1rem;transition:all .3s;display:inline-block}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(212,168,67,.3);color:#0d1b2a}
.btn-outline{padding:14px 36px;border:2px solid #d4a843;color:#d4a843;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s;display:inline-block}
.btn-outline:hover{background:#d4a843;color:#0d1b2a}

/* === 通用标题 === */
.section-title{text-align:center;margin-bottom:45px}
.section-title h2{font-size:2rem;margin-bottom:10px;color:#fff}
.section-title h3{font-size:1.1rem;color:#999;font-weight:400}
.section-title .gold-line{width:60px;height:3px;background:linear-gradient(90deg,#d4a843,#f0d080);margin:14px auto 0;border-radius:2px}
.section-title h2 .brand-highlight{color:#d4a843}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#141e2e;transition:all .4s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(0,0,0,.4)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(212,168,67,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .4s;z-index:3}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.play-btn::after{content:"";width:0;height:0;border-left:20px solid #0d1b2a;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card .card-meta{padding:16px}
.video-card .card-meta h4{font-size:1rem;margin-bottom:8px;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-stats{display:flex;gap:16px;font-size:.8rem;color:#888}
.video-card .card-stats span{display:flex;align-items:center;gap:4px}
.video-card .duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.75);padding:2px 8px;border-radius:4px;font-size:.75rem;color:#fff;z-index:2}
.video-card .tag{position:absolute;top:10px;left:10px;background:rgba(212,168,67,.9);padding:3px 10px;border-radius:4px;font-size:.72rem;color:#0d1b2a;font-weight:600;z-index:2}

/* === 分类模块 === */
.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.category-card{background:linear-gradient(145deg,#141e2e,#1a2940);border-radius:12px;padding:28px 22px;text-align:center;transition:all .4s;border:1px solid rgba(212,168,67,.08)}
.category-card:hover{border-color:rgba(212,168,67,.3);transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.3)}
.category-card .icon{font-size:2.5rem;margin-bottom:14px}
.category-card h4{font-size:1.05rem;margin-bottom:8px;color:#d4a843}
.category-card p{font-size:.85rem;color:#999;line-height:1.6}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.expert-card{background:#141e2e;border-radius:12px;overflow:hidden;transition:all .4s;border:1px solid rgba(212,168,67,.08)}
.expert-card:hover{border-color:rgba(212,168,67,.25);transform:translateY(-4px)}
.expert-card .expert-img{height:200px;overflow:hidden}
.expert-card .expert-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.expert-card:hover .expert-img img{transform:scale(1.05)}
.expert-card .expert-info{padding:20px}
.expert-card .expert-info h4{font-size:1.1rem;color:#d4a843;margin-bottom:4px}
.expert-card .expert-info .role{font-size:.85rem;color:#888;margin-bottom:10px}
.expert-card .expert-info p{font-size:.85rem;color:#aaa;line-height:1.6;margin-bottom:14px}
.expert-btns{display:flex;gap:10px}
.expert-btns a{padding:7px 16px;font-size:.8rem;border-radius:20px;transition:all .3s}
.expert-btns .btn-sm-primary{background:rgba(212,168,67,.15);color:#d4a843;border:1px solid rgba(212,168,67,.3)}
.expert-btns .btn-sm-primary:hover{background:#d4a843;color:#0d1b2a}

/* === 合作品牌 === */
.partner-wall{display:flex;justify-content:center;margin-top:30px}
.partner-wall img{max-height:320px;border-radius:12px;opacity:.85;transition:opacity .3s}
.partner-wall img:hover{opacity:1}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#141e2e;border-radius:10px;margin-bottom:12px;overflow:hidden;border:1px solid rgba(212,168,67,.08);transition:border-color .3s}
.faq-item:hover{border-color:rgba(212,168,67,.2)}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#ddd;font-size:.95rem;transition:color .3s}
.faq-question:hover{color:#d4a843}
.faq-question .arrow{transition:transform .3s;color:#d4a843;font-size:1.2rem}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.active .faq-answer{max-height:300px;padding:0 24px 18px}
.faq-answer p{font-size:.9rem;color:#999;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:#141e2e;border-radius:12px;padding:24px;border:1px solid rgba(212,168,67,.08);transition:all .3s}
.review-card:hover{border-color:rgba(212,168,67,.2)}
.review-card .stars{color:#d4a843;font-size:1rem;margin-bottom:10px;letter-spacing:2px}
.review-card .review-text{font-size:.9rem;color:#bbb;line-height:1.7;margin-bottom:14px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#d4a843,#b8912e);display:flex;align-items:center;justify-content:center;font-size:.85rem;color:#0d1b2a;font-weight:700}
.review-card .reviewer .name{font-size:.85rem;color:#ddd}
.review-card .reviewer .date{font-size:.75rem;color:#777}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.contact-card{background:#141e2e;border-radius:12px;padding:28px;text-align:center;border:1px solid rgba(212,168,67,.08)}
.contact-card .contact-icon{font-size:2rem;margin-bottom:12px}
.contact-card h4{color:#d4a843;margin-bottom:8px;font-size:1rem}
.contact-card p{font-size:.88rem;color:#999;line-height:1.6}

/* === How-To 指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin-top:30px}
.howto-step{text-align:center;padding:24px;background:#141e2e;border-radius:12px;border:1px solid rgba(212,168,67,.08)}
.howto-step .step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#d4a843,#b8912e);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:800;color:#0d1b2a;margin:0 auto 14px}
.howto-step h4{font-size:1rem;color:#fff;margin-bottom:8px}
.howto-step p{font-size:.85rem;color:#999}

/* === 社交分享 === */
.share-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:20px}
.share-btn{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:#fff;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-3px)}
.share-btn.wechat{background:#07c160}
.share-btn.weibo{background:#e6162d}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#fb7299}

/* === 页脚 === */
.site-footer{background:#080d16;border-top:1px solid rgba(212,168,67,.1);padding:50px 0 0}
.footer-top{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;padding-bottom:40px}
.footer-col h4{color:#d4a843;font-size:1rem;margin-bottom:16px}
.footer-col p,.footer-col a{font-size:.85rem;color:#888;line-height:1.8;display:block}
.footer-col a:hover{color:#d4a843}
.footer-qr{display:flex;gap:20px;margin-top:10px}
.footer-qr .qr-item{text-align:center}
.footer-qr .qr-item img{width:110px;height:110px;border-radius:8px;margin-bottom:6px}
.footer-qr .qr-item span{font-size:.75rem;color:#888}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding:20px 0;text-align:center}
.footer-bottom p{font-size:.82rem;color:#666}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{height:40px;max-width:120px;object-fit:contain}
.footer-logo span{font-size:1.1rem;font-weight:700;color:#d4a843}

/* === 面包屑 === */
.breadcrumb-bar{background:#0b1320;padding:8px 0;border-bottom:1px solid rgba(212,168,67,.08)}
.breadcrumb{padding:6px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#d4a843}
.breadcrumb span{margin:0 8px;color:#555}
.breadcrumb strong{color:#ccc;font-weight:500}

/* === 内页通用 === */
.page-hero{padding:100px 0 40px;background:linear-gradient(135deg,#0d1b2a,#1a2940);text-align:center}
.page-hero h1{font-size:2.2rem;color:#d4a843;margin-bottom:10px}
.page-hero p{color:#999;font-size:1rem}

/* === 响应式 === */
@media(max-width:768px){
  .main-nav{position:fixed;top:68px;left:0;width:100%;background:rgba(13,27,42,.98);flex-direction:column;padding:20px;transform:translateY(-120%);transition:transform .3s;gap:4px}
  .main-nav.active{transform:translateY(0)}
  .main-nav a{padding:12px 16px;width:100%;text-align:center}
  .nav-toggle{display:flex}
  .hero-content h1{font-size:1.8rem}
  .hero-content h2{font-size:1rem}
  .video-grid{grid-template-columns:1fr}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .section-padding{padding:40px 0}
  .section-title h2{font-size:1.5rem}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .hero-btns{flex-direction:column;align-items:center}
}
@media(max-width:480px){
  .category-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .search-form{flex-direction:column;gap:8px}
  .search-form input{border-radius:30px}
  .search-form button{border-radius:30px}
}