/* 茄子视频汽车改装视频社区 - 原创CSS */
/* 配色方案：赛车红(#D42B2B) + 碳纤维黑(#1A1A2E) + 银灰(#E8E8E8) + 金属橙(#FF6B35) */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:#2D2D3A;background:#F5F5F8;line-height:1.7}
a{color:#D42B2B;text-decoration:none;transition:color .25s}
a:hover{color:#FF6B35}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header - 碳纤维黑顶栏 */
.site-header{background:linear-gradient(135deg,#1A1A2E 0%,#16213E 100%);padding:0;position:sticky;top:0;z-index:999;box-shadow:0 2px 12px rgba(0,0,0,.35)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px}
.logo-area{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.25rem}
.logo-area img{border-radius:50%;border:2px solid #D42B2B}
.logo-area span{background:linear-gradient(90deg,#D42B2B,#FF6B35);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.main-nav{display:flex;gap:6px}
.main-nav a{color:#C8C8D0;padding:8px 14px;border-radius:6px;font-size:.92rem;transition:all .25s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(212,43,43,.2)}
.main-nav a.active{border-bottom:2px solid #D42B2B}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* Search Bar - 赛道灰 */
.search-bar{background:linear-gradient(90deg,#1A1A2E,#2D2D3A);padding:14px 0;border-bottom:3px solid #D42B2B}
.search-box{display:flex;max-width:640px;margin:0 auto}
.search-box input{flex:1;padding:10px 18px;border:2px solid #3A3A4E;border-right:none;border-radius:8px 0 0 8px;font-size:.95rem;background:#2D2D3A;color:#fff;outline:none}
.search-box input:focus{border-color:#D42B2B}
.search-box input::placeholder{color:#888}
.search-box button{padding:10px 28px;background:linear-gradient(135deg,#D42B2B,#FF6B35);color:#fff;border:none;border-radius:0 8px 8px 0;cursor:pointer;font-size:.95rem;font-weight:600;transition:opacity .25s}
.search-box button:hover{opacity:.88}

/* Banner - 全屏赛道背景 */
.hero-banner{position:relative;height:520px;background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,26,46,.7) 0%,rgba(26,26,46,.4) 50%,rgba(26,26,46,.8) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px;padding:0 20px}
.hero-content h1{font-size:2.6rem;font-weight:800;margin-bottom:16px;text-shadow:0 3px 12px rgba(0,0,0,.5)}
.hero-content h1 em{font-style:normal;color:#FF6B35}
.hero-content p{font-size:1.15rem;color:#D0D0D8;margin-bottom:24px;line-height:1.8}
.hero-btn{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,#D42B2B,#FF6B35);color:#fff;border-radius:30px;font-weight:700;font-size:1.05rem;box-shadow:0 4px 18px rgba(212,43,43,.4);transition:transform .2s}
.hero-btn:hover{transform:translateY(-2px);color:#fff}

/* Section Titles */
.section{padding:56px 0}
.section:nth-child(even){background:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.85rem;color:#1A1A2E;margin-bottom:8px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:linear-gradient(90deg,#D42B2B,#FF6B35);margin:10px auto 0;border-radius:2px}
.section-title p{color:#666;font-size:1rem;margin-top:8px}

/* Video Cards Grid */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 28px rgba(212,43,43,.15)}
.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(1.08)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(212,43,43,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;cursor:pointer}
.play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.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:.78rem}
.video-info{padding:14px 16px}
.video-info h3{font-size:1rem;color:#1A1A2E;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;justify-content:space-between;color:#888;font-size:.82rem}

/* Video H5 Tag */
.video-wrapper{position:relative;padding-top:56.25%;background:#000;border-radius:8px;overflow:hidden}
.video-wrapper video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}

/* Module Cards - 横排卡片 */
.module-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:28px}
.module-card{background:linear-gradient(145deg,#1A1A2E,#2D2D3A);border-radius:12px;padding:28px 20px;text-align:center;color:#fff;transition:transform .3s,box-shadow .3s;border:1px solid rgba(212,43,43,.15)}
.module-card:hover{transform:translateY(-4px);box-shadow:0 6px 24px rgba(212,43,43,.2);border-color:#D42B2B}
.module-card .icon{font-size:2.2rem;margin-bottom:12px}
.module-card h3{font-size:1.05rem;margin-bottom:8px;color:#FF6B35}
.module-card p{font-size:.85rem;color:#A0A0B0;line-height:1.6}

/* Team Grid */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.team-member{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);text-align:center;transition:transform .3s}
.team-member:hover{transform:translateY(-4px)}
.team-member img{width:100%;height:220px;object-fit:cover}
.team-member h3{font-size:1rem;color:#1A1A2E;margin:14px 0 4px;padding:0 12px}
.team-member .role{color:#D42B2B;font-size:.85rem;margin-bottom:10px}
.team-member p{font-size:.82rem;color:#666;padding:0 12px 16px;line-height:1.5}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.05);overflow:hidden;border-left:4px solid #D42B2B}
.faq-q{padding:16px 20px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#1A1A2E;font-size:.98rem}
.faq-q::after{content:'+';font-size:1.3rem;color:#D42B2B;transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:max-height .4s,padding .4s;color:#555;font-size:.92rem;line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding:0 20px 16px}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 16px rgba(0,0,0,.06);border-top:3px solid #D42B2B}
.review-card .stars{color:#FF6B35;font-size:1.1rem;margin-bottom:8px}
.review-card blockquote{font-size:.92rem;color:#444;line-height:1.7;margin-bottom:12px;font-style:italic}
.review-card .reviewer{font-size:.85rem;color:#888;text-align:right}

/* Brands Wall */
.brands-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:28px;padding:20px 0}
.brands-wall span{background:#fff;padding:12px 28px;border-radius:8px;font-size:.95rem;color:#1A1A2E;font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,.06);border:1px solid #E8E8E8;transition:border-color .25s}
.brands-wall span:hover{border-color:#D42B2B}

/* HowTo */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.howto-step{text-align:center;padding:24px 16px;background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(0,0,0,.05)}
.howto-step .step-num{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;background:linear-gradient(135deg,#D42B2B,#FF6B35);color:#fff;border-radius:50%;font-weight:700;font-size:1.2rem;margin-bottom:12px}
.howto-step h4{color:#1A1A2E;margin-bottom:6px;font-size:.98rem}
.howto-step p{color:#666;font-size:.85rem;line-height:1.5}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.contact-info{background:linear-gradient(145deg,#1A1A2E,#2D2D3A);border-radius:12px;padding:32px;color:#fff}
.contact-info h3{color:#FF6B35;margin-bottom:16px;font-size:1.15rem}
.contact-info p{margin-bottom:10px;color:#C8C8D0;font-size:.92rem}
.contact-qr{background:#fff;border-radius:12px;padding:32px;text-align:center}
.contact-qr img{border-radius:8px;margin:8px}

/* Article Meta */
.article-meta{display:flex;gap:16px;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid #E8E8E8;margin-bottom:20px;font-size:.85rem;color:#888}
.article-meta span{display:flex;align-items:center;gap:4px}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#D42B2B}
.breadcrumb span{margin:0 6px;color:#ccc}

/* Share Bar */
.share-bar{display:flex;justify-content:center;gap:12px;padding:16px 0;margin:16px 0}
.share-btn{display:inline-block;padding:8px 20px;border-radius:20px;color:#fff;font-size:.85rem;transition:opacity .25s}
.share-btn:hover{opacity:.85;color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* MCP Widget */
.mcp-widget{background:linear-gradient(145deg,#1A1A2E,#16213E);border-radius:12px;padding:24px;margin:20px 0;border:1px solid rgba(212,43,43,.2)}
.mcp-widget h4{color:#FF6B35;margin-bottom:8px}
.mcp-widget p{color:#A0A0B0;font-size:.88rem}

/* Footer */
.site-footer{background:linear-gradient(180deg,#1A1A2E,#0D0D1A);color:#C8C8D0;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-col h4{color:#FF6B35;margin-bottom:14px;font-size:1rem}
.footer-col p{font-size:.85rem;color:#888;margin-bottom:6px;line-height:1.6}
.footer-col a{display:block;color:#888;font-size:.85rem;margin-bottom:6px;transition:color .25s}
.footer-col a:hover{color:#D42B2B}
.footer-bottom{text-align:center;padding:20px 0;font-size:.82rem;color:#666}
.footer-bottom a{color:#D42B2B}

/* Responsive */
@media(max-width:1024px){
.video-grid{grid-template-columns:repeat(2,1fr)}
.module-row{grid-template-columns:repeat(2,1fr)}
.team-grid{grid-template-columns:repeat(2,1fr)}
.howto-steps{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.header-inner{padding:0 16px}
.main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#1A1A2E;flex-direction:column;padding:16px;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.main-nav.open{display:flex}
.mobile-menu-btn{display:block}
.hero-banner{height:380px}
.hero-content h1{font-size:1.8rem}
.video-grid{grid-template-columns:1fr}
.module-row{grid-template-columns:1fr}
.team-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
}