/* 熟女人妻修车改装视频社区 - 原创样式表 */
/* 配色：深靛蓝黑 + 翠绿强调 + 紫色点缀 */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg-primary:#0b0e17;--bg-secondary:#121828;--bg-card:#151d2e;--accent:#00d4aa;--accent-hover:#00f0c0;--purple:#7c3aed;--text-primary:#e8eaf0;--text-secondary:#8892a8;--border:#1e2a40;--gradient:linear-gradient(135deg,#00d4aa,#7c3aed)}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:color .3s}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto;display:block}
.l3n9ye-fi54{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* Header */
.site-hd{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(11,14,23,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:all .3s}
.hd-wrap{max-width:1320px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:68px}
.hd-logo{display:flex;align-items:center;gap:10px}
.hd-logo img{border-radius:8px}
.hd-brand{font-size:1.5rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hd-nav ul{display:flex;list-style:none;gap:6px}
.hd-nav a{padding:8px 16px;border-radius:8px;color:var(--text-secondary);font-size:.92rem;font-weight:500;transition:all .3s}
.hd-nav a:hover,.hd-nav a.active{color:#fff;background:rgba(0,212,170,.12)}
.hd-nav a.active{color:var(--accent)}
.hd-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.hd-menu-btn span{width:24px;height:2px;background:var(--text-primary);border-radius:2px;transition:all .3s}
.hd-search{background:rgba(18,24,40,.8);border-bottom:1px solid var(--border);padding:10px 0}
.hd-search-wrap{max-width:680px;margin:0 auto;padding:0 24px;display:flex;gap:10px}
.hd-search-wrap input{flex:1;padding:10px 18px;border-radius:10px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-primary);font-size:.9rem;outline:none;transition:border-color .3s}
.hd-search-wrap input:focus{border-color:var(--accent)}
.hd-search-wrap button{padding:10px 28px;border-radius:10px;border:none;background:var(--accent);color:#0b0e17;font-weight:700;font-size:.9rem;cursor:pointer;transition:all .3s}
.hd-search-wrap button:hover{background:var(--accent-hover);transform:translateY(-1px)}

/* Hero Section */
.hero{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center;margin-top:118px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,23,.7) 0%,rgba(11,14,23,.85) 100%);z-index:1}
.hero-content{position:relative;z-index:2;text-align:center;max-width:860px;padding:60px 24px}
.hero h1{font-size:2.6rem;font-weight:800;line-height:1.3;margin-bottom:18px}
.hero h1 .brand{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:3.2rem}
.hero .subtitle{font-size:1.15rem;color:var(--text-secondary);margin-bottom:32px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:28px}
.hero-tags span{padding:6px 16px;border-radius:20px;background:rgba(0,212,170,.1);border:1px solid rgba(0,212,170,.25);color:var(--accent);font-size:.82rem}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-primary{padding:14px 36px;border-radius:12px;background:var(--accent);color:#0b0e17;font-weight:700;font-size:1rem;border:none;cursor:pointer;transition:all .3s;display:inline-block}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,212,170,.25);color:#0b0e17}
.btn-outline{padding:14px 36px;border-radius:12px;border:1px solid var(--accent);color:var(--accent);font-weight:700;font-size:1rem;cursor:pointer;transition:all .3s;display:inline-block;background:transparent}
.btn-outline:hover{background:rgba(0,212,170,.1);color:var(--accent)}

/* Section Common */
.section{padding:80px 0}
.section-wrap{max-width:1320px;margin:0 auto;padding:0 24px}
.section-hd{text-align:center;margin-bottom:48px}
.section-hd h2{font-size:2rem;font-weight:800;margin-bottom:12px}
.section-hd h2 .hl{color:var(--accent)}
.section-hd p{color:var(--text-secondary);font-size:1rem;max-width:640px;margin:0 auto}
.section-alt{background:var(--bg-secondary)}

/* Video Cards Grid */
.vid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vid-card{background:var(--bg-card);border-radius:14px;overflow:hidden;border:1px solid var(--border);transition:all .3s}
.vid-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 12px 32px rgba(0,212,170,.1)}
.vid-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;cursor:pointer}
.vid-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.vid-card:hover .vid-thumb img{transform:scale(1.05)}
.vid-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.35);opacity:0;transition:opacity .3s}
.vid-card:hover .vid-play{opacity:1}
.vid-play-icon{width:56px;height:56px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,212,170,.4)}
.vid-play-icon::after{content:'';border-left:18px solid #0b0e17;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.vid-badge{position:absolute;bottom:10px;right:10px;padding:3px 8px;border-radius:4px;background:rgba(0,0,0,.75);color:#fff;font-size:.75rem}
.vid-info{padding:16px}
.vid-info h3{font-size:.95rem;font-weight:700;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vid-meta{display:flex;gap:14px;color:var(--text-secondary);font-size:.8rem}
.vid-meta span{display:flex;align-items:center;gap:4px}
.vid-tags{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.vid-tags span{padding:3px 10px;border-radius:12px;background:rgba(0,212,170,.08);color:var(--accent);font-size:.72rem}

/* Short Video (TikTok style) */
.short-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.short-card{background:var(--bg-card);border-radius:14px;overflow:hidden;border:1px solid var(--border);transition:all .3s}
.short-card:hover{transform:translateY(-4px);border-color:var(--purple);box-shadow:0 12px 32px rgba(124,58,237,.15)}
.short-thumb{position:relative;aspect-ratio:9/16;overflow:hidden;cursor:pointer}
.short-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.short-card:hover .short-thumb img{transform:scale(1.05)}
.short-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.3);opacity:0;transition:opacity .3s}
.short-card:hover .short-play{opacity:1}
.short-play-icon{width:48px;height:48px;border-radius:50%;background:var(--purple);display:flex;align-items:center;justify-content:center}
.short-play-icon::after{content:'';border-left:14px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:3px}
.short-info{padding:12px}
.short-info h3{font-size:.85rem;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.short-meta{color:var(--text-secondary);font-size:.75rem;margin-top:6px}

/* AI Section */
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.ai-features{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.ai-feat{padding:24px;border-radius:14px;background:var(--bg-card);border:1px solid var(--border);transition:all .3s}
.ai-feat:hover{border-color:var(--purple);box-shadow:0 8px 24px rgba(124,58,237,.1)}
.ai-feat-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,rgba(0,212,170,.15),rgba(124,58,237,.15));display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:14px}
.ai-feat h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.ai-feat p{color:var(--text-secondary);font-size:.85rem}
.ai-img{border-radius:14px;overflow:hidden;border:1px solid var(--border)}
.ai-img img{width:100%;height:auto}

/* Community Channels */
.ch-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
.ch-tab{padding:8px 22px;border-radius:20px;background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);font-size:.88rem;cursor:pointer;transition:all .3s}
.ch-tab:hover,.ch-tab.active{background:var(--accent);color:#0b0e17;border-color:var(--accent)}

/* Expert Cards */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:var(--bg-card);border-radius:14px;overflow:hidden;border:1px solid var(--border);text-align:center;padding:32px 20px;transition:all .3s}
.expert-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid var(--accent)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:1.05rem;font-weight:700;margin-bottom:4px}
.expert-role{color:var(--accent);font-size:.82rem;margin-bottom:10px}
.expert-desc{color:var(--text-secondary);font-size:.82rem;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.expert-btns{display:flex;gap:8px;justify-content:center}
.expert-btns a{padding:6px 16px;border-radius:8px;font-size:.78rem;font-weight:600}
.btn-sm-primary{background:var(--accent);color:#0b0e17}
.btn-sm-outline{border:1px solid var(--border);color:var(--text-secondary)}
.btn-sm-outline:hover{border-color:var(--accent);color:var(--accent)}

/* Brand Logo Wall */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;padding:20px 0}
.brand-logo{width:140px;height:70px;border-radius:10px;background:var(--bg-card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:.85rem;font-weight:600;transition:all .3s}
.brand-logo:hover{border-color:var(--accent);color:var(--accent)}

/* Steps Guide */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{text-align:center;padding:32px 20px;background:var(--bg-card);border-radius:14px;border:1px solid var(--border);position:relative;transition:all .3s}
.step-card:hover{border-color:var(--accent)}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--gradient);color:#0b0e17;font-size:1.3rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.step-card h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.step-card p{color:var(--text-secondary);font-size:.85rem}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--bg-card);border-radius:14px;padding:28px;border:1px solid var(--border);transition:all .3s}
.review-card:hover{border-color:var(--accent)}
.review-stars{color:#fbbf24;font-size:1rem;margin-bottom:12px;letter-spacing:2px}
.review-text{color:var(--text-secondary);font-size:.9rem;margin-bottom:16px;line-height:1.7}
.review-user{display:flex;align-items:center;gap:12px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#0b0e17;font-weight:700;font-size:.9rem}
.review-name{font-weight:600;font-size:.88rem}
.review-date{color:var(--text-secondary);font-size:.75rem}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;background:var(--bg-card)}
.faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;transition:all .3s}
.faq-q:hover{color:var(--accent)}
.faq-q::after{content:'+';font-size:1.3rem;color:var(--accent);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}
.faq-a p{color:var(--text-secondary);font-size:.88rem;line-height:1.8}

/* Contact Grid */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.contact-card{background:var(--bg-card);border-radius:14px;padding:32px;border:1px solid var(--border)}
.contact-card h4{font-size:1.1rem;font-weight:700;margin-bottom:16px;color:var(--accent)}
.contact-card p,.contact-card li{color:var(--text-secondary);font-size:.9rem;line-height:1.8}
.contact-card ul{list-style:none}

/* Breadcrumb */
.breadcrumb{padding:12px 0;max-width:1320px;margin:0 auto;padding:12px 24px}
.breadcrumb ol{display:flex;list-style:none;gap:8px;flex-wrap:wrap}
.breadcrumb li::after{content:'/';margin-left:8px;color:var(--text-secondary)}
.breadcrumb li:last-child::after{display:none}
.breadcrumb a{color:var(--text-secondary);font-size:.85rem}
.breadcrumb span{color:var(--text-secondary);font-size:.85rem}
.breadcrumb a:hover{color:var(--accent)}

/* Footer */
.site-ft{background:var(--bg-secondary);border-top:1px solid var(--border);margin-top:80px}
.ft-main{padding:60px 0}
.ft-wrap{max-width:1320px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.ft-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.ft-logo img{border-radius:6px}
.ft-logo span{font-size:1.2rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.ft-about p{color:var(--text-secondary);font-size:.85rem;line-height:1.8;margin-bottom:16px}
.ft-social{display:flex;gap:10px}
.ft-social a{padding:6px 14px;border-radius:8px;background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);font-size:.78rem;transition:all .3s}
.ft-social a:hover{border-color:var(--accent);color:var(--accent)}
.ft-links h4,.ft-contact h4,.ft-qr h4{font-size:1rem;font-weight:700;margin-bottom:16px;color:var(--text-primary)}
.ft-links ul,.ft-contact ul{list-style:none}
.ft-links li,.ft-contact li{margin-bottom:8px}
.ft-links a{color:var(--text-secondary);font-size:.85rem}
.ft-links a:hover{color:var(--accent)}
.ft-contact li{color:var(--text-secondary);font-size:.82rem}
.ft-qr-list{display:flex;gap:16px}
.ft-qr-item{text-align:center}
.ft-qr-item img{border-radius:8px;margin-bottom:6px}
.ft-qr-item span{font-size:.75rem;color:var(--text-secondary)}
.ft-bottom{border-top:1px solid var(--border);padding:20px 0}
.ft-bottom .ft-wrap{display:block;text-align:center}
.ft-bottom p{color:var(--text-secondary);font-size:.8rem}
.ft-bottom a{color:var(--text-secondary)}
.ft-bottom a:hover{color:var(--accent)}

/* Page Header (inner pages) */
.page-hd{margin-top:118px;padding:48px 0;background:var(--bg-secondary);border-bottom:1px solid var(--border)}
.page-hd-wrap{max-width:1320px;margin:0 auto;padding:0 24px}
.page-hd h1{font-size:2rem;font-weight:800;margin-bottom:8px}
.page-hd p{color:var(--text-secondary);font-size:1rem}
.page-content{max-width:1320px;margin:0 auto;padding:48px 24px}
.page-content h2{font-size:1.5rem;font-weight:700;margin:32px 0 16px;color:var(--accent)}
.page-content h3{font-size:1.2rem;font-weight:700;margin:24px 0 12px}
.page-content p{color:var(--text-secondary);font-size:.92rem;line-height:1.8;margin-bottom:16px}
.page-content ul,.page-content ol{color:var(--text-secondary);font-size:.92rem;line-height:1.8;margin:0 0 16px 24px}

/* Responsive */
@media(max-width:1024px){
.vid-grid{grid-template-columns:repeat(2,1fr)}
.short-grid{grid-template-columns:repeat(3,1fr)}
.expert-grid{grid-template-columns:repeat(2,1fr)}
.steps-grid{grid-template-columns:repeat(2,1fr)}
.ft-wrap{grid-template-columns:1fr 1fr}
.ai-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
.hd-nav{position:fixed;top:68px;left:0;width:100%;background:var(--bg-primary);border-bottom:1px solid var(--border);transform:translateY(-120%);transition:transform .3s;z-index:999}
.hd-nav.open{transform:translateY(0)}
.hd-nav ul{flex-direction:column;padding:16px}
.hd-nav a{display:block;padding:12px 16px}
.hd-menu-btn{display:flex}
.hero h1{font-size:1.8rem}
.hero h1 .brand{font-size:2.2rem}
.vid-grid{grid-template-columns:1fr}
.short-grid{grid-template-columns:repeat(2,1fr)}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.steps-grid{grid-template-columns:1fr}
.ft-wrap{grid-template-columns:1fr}
.section{padding:48px 0}
.section-hd h2{font-size:1.5rem}
}