/* ============================================
   国产视频 - 全新原创CSS样式
   配色：甜蜜粉#FF6B9D + 梦幻紫#7B2D8E + 暖珊瑚#FF8E72 + 深夜蓝#1B1340
   ============================================ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --candy-pink:#FF6B9D;
  --dream-purple:#7B2D8E;
  --warm-coral:#FF8E72;
  --night-blue:#1B1340;
  --soft-lavender:#E8D5F5;
  --cream-white:#FFF5F8;
  --text-dark:#2D1B4E;
  --text-light:#F0E6F6;
  --card-bg:rgba(255,255,255,0.06);
  --glass-border:rgba(255,107,157,0.2);
  --gradient-main:linear-gradient(135deg,#FF6B9D 0%,#7B2D8E 50%,#1B1340 100%);
  --gradient-card:linear-gradient(145deg,rgba(123,45,142,0.15),rgba(255,107,157,0.08));
  --gradient-btn:linear-gradient(90deg,#FF6B9D,#FF8E72);
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:#1B1340;color:#F0E6F6;line-height:1.7;overflow-x:hidden}

/* 导航栏 - 毛玻璃效果 */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(27,19,64,0.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);transition:all .3s}
.header-inner{max-width:1320px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:68px}
.logo-area{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-area img{height:42px;width:auto;border-radius:8px}
.logo-area .brand-name{font-size:1.3rem;font-weight:700;background:var(--gradient-btn);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:1px}
.main-nav{display:flex;gap:6px}
.main-nav a{color:var(--text-light);text-decoration:none;padding:8px 16px;border-radius:20px;font-size:.9rem;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{background:rgba(255,107,157,0.15);color:var(--candy-pink)}

/* 搜索框 */
.search-bar{background:rgba(123,45,142,0.2);border:1px solid var(--glass-border);max-width:1320px;margin:80px auto 0;padding:12px 24px;display:flex;align-items:center;gap:12px;border-radius:40px}
.search-bar input{flex:1;background:transparent;border:none;color:var(--text-light);font-size:.95rem;outline:none;padding:6px 0}
.search-bar input::placeholder{color:rgba(240,230,246,0.4)}
.search-bar button{background:var(--gradient-btn);border:none;color:#fff;padding:8px 24px;border-radius:20px;cursor:pointer;font-size:.9rem;transition:transform .2s}
.search-bar button:hover{transform:scale(1.05)}

/* 面包屑 */
.breadcrumb{max-width:1320px;margin:16px auto 0;padding:0 24px;font-size:.85rem;color:rgba(240,230,246,0.5)}
.breadcrumb a{color:var(--candy-pink);text-decoration:none}
.breadcrumb span{margin:0 6px}

/* Banner区域 - 全宽沉浸式 */
.hero-banner{position:relative;width:100%;min-height:520px;margin-top:12px;overflow:hidden;border-radius:0 0 40px 40px}
.hero-banner img{width:100%;height:520px;object-fit:cover;display:block}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(27,19,64,0.92) 0%,rgba(123,45,142,0.6) 50%,transparent 100%);display:flex;align-items:center;padding:0 60px}
.hero-content{max-width:580px}
.hero-content h1{font-size:2.6rem;font-weight:800;line-height:1.3;margin-bottom:16px;background:linear-gradient(90deg,#fff,#FF6B9D);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-content p{font-size:1.05rem;color:rgba(255,255,255,0.8);margin-bottom:24px;line-height:1.8}
.hero-btn{display:inline-block;background:var(--gradient-btn);color:#fff;padding:14px 36px;border-radius:30px;text-decoration:none;font-weight:600;font-size:1rem;transition:all .3s;box-shadow:0 8px 30px rgba(255,107,157,0.3)}
.hero-btn:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(255,107,157,0.5)}

/* 通用Section */
.section{max-width:1320px;margin:60px auto;padding:0 24px}
.section-header{text-align:center;margin-bottom:40px}
.section-header h2{font-size:2rem;font-weight:700;margin-bottom:10px;position:relative;display:inline-block}
.section-header h2::after{content:'';position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:var(--gradient-btn);border-radius:2px}
.section-header p{color:rgba(240,230,246,0.6);font-size:.95rem;margin-top:16px}

/* 视频卡片网格 - 瀑布流风格 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:var(--card-bg);border:1px solid var(--glass-border);border-radius:16px;overflow:hidden;transition:all .4s cubic-bezier(.25,.8,.25,1);cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-8px);box-shadow:0 20px 60px rgba(255,107,157,0.15);border-color:var(--candy-pink)}
.video-card .thumb{position:relative;width:100%;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;top:0;left: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(255,107,157,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .3s;opacity:0}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1);opacity:1}
.video-card .play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card .card-info{padding:16px}
.video-card .card-info h3{font-size:1rem;font-weight:600;margin-bottom:8px;color:var(--text-light);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;justify-content:space-between;font-size:.8rem;color:rgba(240,230,246,0.4)}
.video-card .card-meta .views::before{content:'▶ '}
.video-card .card-meta .likes::before{content:'♥ '}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-card .tag{position:absolute;top:12px;left:12px;background:var(--gradient-btn);color:#fff;padding:3px 10px;border-radius:12px;font-size:.72rem;font-weight:600}

/* 横向滚动模块 */
.scroll-row{display:flex;gap:20px;overflow-x:auto;padding-bottom:16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.scroll-row::-webkit-scrollbar{height:4px}
.scroll-row::-webkit-scrollbar-thumb{background:var(--candy-pink);border-radius:2px}
.scroll-card{min-width:280px;flex-shrink:0;scroll-snap-align:start;background:var(--gradient-card);border:1px solid var(--glass-border);border-radius:16px;padding:24px;transition:all .3s}
.scroll-card:hover{border-color:var(--candy-pink);transform:translateY(-4px)}
.scroll-card h4{font-size:1.05rem;margin-bottom:8px;color:var(--candy-pink)}
.scroll-card p{font-size:.88rem;color:rgba(240,230,246,0.6);line-height:1.6}

/* 专家展示 - 圆形头像卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.expert-card{background:var(--gradient-card);border:1px solid var(--glass-border);border-radius:20px;padding:32px 24px;text-align:center;transition:all .4s}
.expert-card:hover{transform:translateY(-6px);box-shadow:0 16px 50px rgba(123,45,142,0.2);border-color:var(--dream-purple)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;border:3px solid var(--candy-pink);margin-bottom:16px}
.expert-card h4{font-size:1.1rem;color:var(--text-light);margin-bottom:4px}
.expert-card .role{color:var(--candy-pink);font-size:.85rem;margin-bottom:12px}
.expert-card p{font-size:.85rem;color:rgba(240,230,246,0.5);line-height:1.6;margin-bottom:16px}
.expert-card .expert-btns{display:flex;gap:10px;justify-content:center}
.expert-card .expert-btns a{padding:6px 16px;border-radius:16px;font-size:.8rem;text-decoration:none;transition:all .3s}
.expert-card .expert-btns .btn-contact{background:var(--gradient-btn);color:#fff}
.expert-card .expert-btns .btn-works{border:1px solid var(--candy-pink);color:var(--candy-pink)}
.expert-card .expert-btns a:hover{transform:scale(1.05)}

/* FAQ手风琴 */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card-bg);border:1px solid var(--glass-border);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-item summary{padding:18px 24px;cursor:pointer;font-weight:600;font-size:1rem;color:var(--text-light);list-style:none;display:flex;justify-content:space-between;align-items:center;transition:color .3s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.4rem;color:var(--candy-pink);transition:transform .3s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--candy-pink)}
.faq-item .faq-answer{padding:0 24px 18px;font-size:.92rem;color:rgba(240,230,246,0.6);line-height:1.8}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:var(--gradient-card);border:1px solid var(--glass-border);border-radius:16px;padding:24px;position:relative}
.review-card::before{content:'"';position:absolute;top:12px;left:20px;font-size:3rem;color:rgba(255,107,157,0.2);font-family:Georgia,serif}
.review-card .stars{color:#FFD700;font-size:.9rem;margin-bottom:10px;letter-spacing:2px}
.review-card p{font-size:.9rem;color:rgba(240,230,246,0.7);line-height:1.7;margin-bottom:12px;padding-left:8px}
.review-card .reviewer{display:flex;align-items:center;gap:10px;font-size:.85rem;color:rgba(240,230,246,0.5)}
.review-card .reviewer strong{color:var(--text-light)}

/* 合作品牌Logo墙 */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;padding:20px 0}
.brand-wall .brand-item{width:120px;height:60px;background:rgba(255,255,255,0.05);border:1px solid var(--glass-border);border-radius:12px;display:flex;align-items:center;justify-content:center;color:rgba(240,230,246,0.4);font-size:.85rem;transition:all .3s}
.brand-wall .brand-item:hover{border-color:var(--candy-pink);color:var(--candy-pink);background:rgba(255,107,157,0.05)}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-card{background:var(--gradient-card);border:1px solid var(--glass-border);border-radius:16px;padding:28px}
.contact-card h4{font-size:1.1rem;color:var(--candy-pink);margin-bottom:16px}
.contact-card p{font-size:.9rem;color:rgba(240,230,246,0.6);line-height:1.8;margin-bottom:8px}
.contact-card img{max-width:160px;border-radius:12px;margin-top:12px}

/* 社交分享 */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-bar a{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:24px;text-decoration:none;font-size:.88rem;color:#fff;transition:all .3s}
.share-bar a:hover{transform:translateY(-3px)}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* 页脚 */
.site-footer{background:rgba(15,10,40,0.95);border-top:1px solid var(--glass-border);margin-top:80px;padding:50px 0 0}
.footer-inner{max-width:1320px;margin:0 auto;padding:0 24px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}
.footer-col h5{font-size:1rem;color:var(--text-light);margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h5::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--candy-pink)}
.footer-col a{display:block;color:rgba(240,230,246,0.5);text-decoration:none;font-size:.88rem;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:var(--candy-pink)}
.footer-col p{font-size:.85rem;color:rgba(240,230,246,0.4);line-height:1.7}
.footer-col img{max-width:120px;border-radius:8px;margin-top:8px}
.footer-bottom{border-top:1px solid rgba(255,107,157,0.1);padding:20px 0;text-align:center;font-size:.82rem;color:rgba(240,230,246,0.35)}
.footer-bottom a{color:var(--candy-pink);text-decoration:none}

/* 最新动态 */
.news-list{list-style:none}
.news-list li{padding:14px 0;border-bottom:1px solid rgba(255,107,157,0.08);display:flex;justify-content:space-between;align-items:center}
.news-list li:last-child{border-bottom:none}
.news-list li a{color:var(--text-light);text-decoration:none;font-size:.92rem;transition:color .3s}
.news-list li a:hover{color:var(--candy-pink)}
.news-list li .date{color:rgba(240,230,246,0.35);font-size:.82rem;white-space:nowrap;margin-left:16px}

/* How-To指南 */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.howto-step{background:var(--gradient-card);border:1px solid var(--glass-border);border-radius:16px;padding:28px 20px;text-align:center;counter-increment:step;position:relative}
.howto-step::before{content:counter(step);display:flex;width:40px;height:40px;background:var(--gradient-btn);border-radius:50%;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;color:#fff;margin:0 auto 16px}
.howto-step h4{font-size:.95rem;margin-bottom:8px;color:var(--text-light)}
.howto-step p{font-size:.82rem;color:rgba(240,230,246,0.5);line-height:1.6}

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

/* 移动端响应式 */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:12px 16px}
  .main-nav{width:100%;overflow-x:auto;padding:8px 0;gap:4px}
  .main-nav a{font-size:.82rem;padding:6px 12px;white-space:nowrap}
  .search-bar{margin-top:110px;margin-left:16px;margin-right:16px}
  .hero-banner{min-height:380px;border-radius:0 0 24px 24px}
  .hero-banner img{height:380px}
  .hero-overlay{padding:0 24px}
  .hero-content h1{font-size:1.8rem}
  .hero-content p{font-size:.9rem}
  .section{margin:40px auto;padding:0 16px}
  .section-header h2{font-size:1.5rem}
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .video-card .play-btn{transform:translate(-50%,-50%) scale(1);opacity:.8}
}
@media(max-width:480px){
  .hero-content h1{font-size:1.4rem}
  .scroll-card{min-width:240px}
  .brand-wall .brand-item{width:100px;height:50px;font-size:.75rem}
}