/* ===== 警花 修车改装视频社区 - 原创CSS ===== */
/* 配色：赛车红#E8350F 深夜蓝黑#1A1A2E 极深蓝黑#0D0D1A 暗紫蓝#16162A 橙红#FF6B35 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:#0D0D1A;color:#F0F0F5;line-height:1.7;overflow-x:hidden}
a{color:#FF6B35;text-decoration:none;transition:color .25s}
a:hover{color:#E8350F}
img{max-width:100%;height:auto;display:block}
em{font-style:normal;color:#E8350F}

/* ===== 顶部导航 ===== */
.nv-topbar{position:fixed;top:0;left:0;width:100%;z-index:999;background:rgba(13,13,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(232,53,15,.15);transition:background .3s}
.nv-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:64px;gap:20px}
.nv-logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:800;color:#F0F0F5;white-space:nowrap}
.nv-logo-img{border-radius:6px}
.nv-nav{display:flex;gap:6px;margin-left:auto}
.nv-link{padding:6px 14px;border-radius:6px;font-size:15px;color:#9B9BB5;transition:all .25s}
.nv-link:hover,.nv-link.on{color:#F0F0F5;background:rgba(232,53,15,.12)}
.nv-search{display:flex;align-items:center;background:#16162A;border:1px solid rgba(232,53,15,.2);border-radius:20px;overflow:hidden;margin-left:12px}
.nv-search input{background:transparent;border:none;outline:none;color:#F0F0F5;padding:6px 14px;font-size:14px;width:180px}
.nv-search input::placeholder{color:#9B9BB5}
.nv-search button{background:transparent;border:none;color:#E8350F;cursor:pointer;padding:6px 12px;font-size:16px}
.nv-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nv-hamburger span{display:block;width:24px;height:2px;background:#F0F0F5;border-radius:2px;transition:all .3s}

/* ===== Hero Banner ===== */
.hr-banner{position:relative;min-height:88vh;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:64px}
.hr-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hr-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,26,.7) 0%,rgba(13,13,26,.85) 60%,#0D0D1A 100%)}
.hr-content{position:relative;z-index:2;max-width:900px;text-align:center;padding:40px 24px}
.hr-content h1{font-size:clamp(28px,5vw,48px);font-weight:800;line-height:1.3;margin-bottom:20px;letter-spacing:-.5px}
.hr-desc{font-size:17px;color:#c0c0d5;margin-bottom:32px;line-height:1.8}
.hr-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.hr-btn{display:inline-block;padding:12px 32px;border-radius:8px;font-size:16px;font-weight:600;transition:all .3s;cursor:pointer}
.hr-btn-primary{background:linear-gradient(135deg,#E8350F,#FF6B35);color:#fff;box-shadow:0 4px 20px rgba(232,53,15,.35)}
.hr-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(232,53,15,.5);color:#fff}
.hr-btn-outline{border:2px solid #E8350F;color:#E8350F;background:transparent}
.hr-btn-outline:hover{background:rgba(232,53,15,.1);color:#FF6B35}
.hr-stats{display:flex;gap:40px;justify-content:center;flex-wrap:wrap}
.hr-stat{text-align:center}
.hr-stat strong{display:block;font-size:28px;font-weight:800;color:#FF6B35}
.hr-stat span{font-size:14px;color:#9B9BB5}

/* ===== 通用模块 ===== */
.sc-block{padding:80px 0}
.sc-block-alt{background:#16162A}
.sc-inner{max-width:1280px;margin:0 auto;padding:0 24px}
.sc-inner h2{font-size:clamp(24px,3.5vw,36px);font-weight:800;text-align:center;margin-bottom:12px}
.sc-sub{text-align:center;color:#9B9BB5;font-size:16px;margin-bottom:48px;max-width:680px;margin-left:auto;margin-right:auto}
.sc-more{text-align:center;margin-top:40px}

/* ===== 视频筛选 ===== */
.sc-filters{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.sc-ftag{padding:6px 18px;border-radius:20px;font-size:14px;color:#9B9BB5;cursor:pointer;border:1px solid rgba(155,155,181,.2);transition:all .25s}
.sc-ftag:hover,.sc-ftag.on{color:#F0F0F5;background:rgba(232,53,15,.15);border-color:#E8350F}

/* ===== 视频卡片网格 ===== */
.sc-vgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sc-vcard{display:block;background:#16162A;border-radius:12px;overflow:hidden;transition:transform .3s,box-shadow .3s;border:1px solid rgba(232,53,15,.08)}
.sc-vcard:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(232,53,15,.2)}
.sc-vthumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.sc-vthumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.sc-vcard:hover .sc-vthumb img{transform:scale(1.05)}
.sc-vplay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.35);opacity:0;transition:opacity .3s}
.sc-vcard:hover .sc-vplay{opacity:1}
.sc-vplay-icon{width:56px;height:56px;border-radius:50%;background:rgba(232,53,15,.9);display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;padding-left:4px}
.sc-vtime{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.sc-vinfo{padding:16px}
.sc-vinfo h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sc-vmeta{display:flex;gap:12px;font-size:12px;color:#9B9BB5;margin-bottom:8px}
.sc-vtags{display:flex;gap:6px;flex-wrap:wrap}
.sc-vtag{padding:2px 8px;border-radius:4px;font-size:11px;background:rgba(232,53,15,.1);color:#FF6B35}

/* ===== 修车传媒 ===== */
.sc-media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sc-media-item{background:#0D0D1A;border-radius:12px;padding:32px 24px;border:1px solid rgba(232,53,15,.08);transition:transform .3s,border-color .3s}
.sc-media-item:hover{transform:translateY(-3px);border-color:rgba(232,53,15,.3)}
.sc-media-ico{font-size:36px;margin-bottom:16px}
.sc-media-item h4{font-size:18px;font-weight:700;margin-bottom:10px}
.sc-media-item p{font-size:14px;color:#9B9BB5;line-height:1.7}

/* ===== 娱乐专区 ===== */
.sc-fun-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.sc-fun-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.sc-fun-card{background:#16162A;border-radius:10px;overflow:hidden;border:1px solid rgba(232,53,15,.08);transition:transform .3s}
.sc-fun-card:hover{transform:translateY(-3px)}
.sc-fun-thumb{position:relative;aspect-ratio:4/3;overflow:hidden}
.sc-fun-thumb img{width:100%;height:100%;object-fit:cover}
.sc-fun-card h5{padding:10px 12px 4px;font-size:14px;font-weight:600}
.sc-fun-meta{padding:4px 12px 12px;font-size:12px;color:#9B9BB5;display:flex;gap:12px}
.sc-fun-img{border-radius:12px;overflow:hidden}
.sc-fun-img img{width:100%;height:100%;object-fit:cover;border-radius:12px}

/* ===== AI赋能 ===== */
.sc-ai-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.sc-ai-list{display:flex;flex-direction:column;gap:20px}
.sc-ai-item{background:#0D0D1A;border-radius:10px;padding:24px;border-left:3px solid #E8350F;transition:transform .3s}
.sc-ai-item:hover{transform:translateX(4px)}
.sc-ai-item h4{font-size:17px;font-weight:700;margin-bottom:8px}
.sc-ai-item p{font-size:14px;color:#9B9BB5;line-height:1.7}
.sc-ai-img{border-radius:12px;overflow:hidden}
.sc-ai-img img{border-radius:12px}

/* ===== 社区功能 ===== */
.sc-comm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sc-comm-tile{background:#16162A;border-radius:12px;padding:32px 24px;text-align:center;border:1px solid rgba(232,53,15,.08);transition:transform .3s,border-color .3s}
.sc-comm-tile:hover{transform:translateY(-3px);border-color:rgba(232,53,15,.3)}
.sc-comm-ico{font-size:40px;margin-bottom:14px}
.sc-comm-tile h4{font-size:18px;font-weight:700;margin-bottom:8px}
.sc-comm-tile p{font-size:14px;color:#9B9BB5;line-height:1.7}

/* ===== 专家展示 ===== */
.sc-expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.sc-expert-card{background:#0D0D1A;border-radius:12px;overflow:hidden;border:1px solid rgba(232,53,15,.08);transition:transform .3s}
.sc-expert-card:hover{transform:translateY(-4px)}
.sc-expert-card>img{width:100%;aspect-ratio:1/1;object-fit:cover}
.sc-expert-info{padding:20px}
.sc-expert-name{font-size:20px;font-weight:800;margin-bottom:4px}
.sc-expert-role{font-size:13px;color:#FF6B35;margin-bottom:12px}
.sc-expert-info p{font-size:14px;color:#9B9BB5;line-height:1.7;margin-bottom:12px}
.sc-expert-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.sc-expert-tags span{padding:3px 10px;border-radius:4px;font-size:12px;background:rgba(232,53,15,.1);color:#FF6B35}
.sc-expert-acts{display:flex;gap:10px}
.sc-btn-sm{display:inline-block;padding:6px 16px;border-radius:6px;font-size:13px;font-weight:600;background:linear-gradient(135deg,#E8350F,#FF6B35);color:#fff;transition:all .3s}
.sc-btn-sm:hover{transform:translateY(-1px);color:#fff}
.sc-btn-sm-line{display:inline-block;padding:6px 16px;border-radius:6px;font-size:13px;font-weight:600;border:1px solid #E8350F;color:#E8350F;transition:all .3s}
.sc-btn-sm-line:hover{background:rgba(232,53,15,.1);color:#FF6B35}

/* ===== 合作品牌 ===== */
.sc-brand-wall{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.sc-brand-item{background:#16162A;border:1px solid rgba(232,53,15,.1);border-radius:8px;padding:16px 32px;font-size:18px;font-weight:700;color:#9B9BB5;letter-spacing:2px;transition:all .3s}
.sc-brand-item:hover{border-color:#E8350F;color:#F0F0F5;transform:translateY(-2px)}

/* ===== How-To步骤 ===== */
.sc-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.sc-step{background:#0D0D1A;border-radius:12px;padding:32px 24px;text-align:center;border:1px solid rgba(232,53,15,.08);position:relative}
.sc-step-no{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#E8350F,#FF6B35);color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.sc-step h4{font-size:17px;font-weight:700;margin-bottom:8px}
.sc-step p{font-size:14px;color:#9B9BB5;line-height:1.7}

/* ===== FAQ ===== */
.sc-faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.sc-faq-item{background:#16162A;border-radius:10px;border:1px solid rgba(232,53,15,.08);overflow:hidden}
.sc-faq-q{padding:18px 24px;font-size:16px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.sc-faq-q::after{content:"+";font-size:22px;color:#E8350F;transition:transform .3s}
.sc-faq-item.open .sc-faq-q::after{transform:rotate(45deg)}
.sc-faq-q:hover{background:rgba(232,53,15,.05)}
.sc-faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .35s ease;font-size:14px;color:#9B9BB5;line-height:1.8}
.sc-faq-item.open .sc-faq-a{padding:0 24px 18px;max-height:300px}

/* ===== 用户评论 ===== */
.sc-review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sc-review-card{background:#0D0D1A;border-radius:12px;padding:28px 24px;border:1px solid rgba(232,53,15,.08);transition:transform .3s}
.sc-review-card:hover{transform:translateY(-3px)}
.sc-review-stars{color:#FF6B35;font-size:18px;margin-bottom:14px;letter-spacing:2px}
.sc-review-card p{font-size:14px;color:#c0c0d5;line-height:1.8;margin-bottom:16px;font-style:italic}
.sc-review-author strong{display:block;font-size:15px;color:#F0F0F5}
.sc-review-author span{font-size:12px;color:#9B9BB5}

/* ===== 联系我们 ===== */
.sc-contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:40px}
.sc-contact-info h4{font-size:22px;font-weight:700;margin-bottom:16px;color:#FF6B35}
.sc-contact-info h5{font-size:17px;font-weight:700;margin:20px 0 10px}
.sc-contact-info ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.sc-contact-info li{font-size:14px;color:#c0c0d5}
.sc-contact-info li strong{color:#F0F0F5}
.sc-contact-qr{display:flex;gap:24px;align-items:flex-start;justify-content:center}
.sc-qr-item{text-align:center}
.sc-qr-placeholder{width:160px;height:160px;background:#16162A;border:2px dashed rgba(232,53,15,.3);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:14px;color:#9B9BB5;margin-bottom:8px}
.sc-qr-item span{font-size:13px;color:#9B9BB5}

/* ===== 社交分享 ===== */
.sc-social{text-align:center;padding-top:20px;border-top:1px solid rgba(232,53,15,.1)}
.sc-social h5{font-size:16px;font-weight:700;margin-bottom:16px}
.sc-social-btns{display:flex;gap:12px;justify-content:center}
.sc-social-btn{padding:8px 24px;border-radius:6px;font-size:14px;font-weight:600;background:#16162A;color:#9B9BB5;border:1px solid rgba(232,53,15,.15);transition:all .3s}
.sc-social-btn:hover{background:rgba(232,53,15,.1);color:#FF6B35;border-color:#E8350F}

/* ===== 页脚 ===== */
.ft-footer{background:#0a0a16;border-top:1px solid rgba(232,53,15,.1);padding:40px 0 24px}
.ft-inner{max-width:1280px;margin:0 auto;padding:0 24px}
.ft-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:16px}
.ft-brand{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:800;color:#F0F0F5}
.ft-links{display:flex;gap:16px;flex-wrap:wrap}
.ft-links a{font-size:14px;color:#9B9BB5;transition:color .25s}
.ft-links a:hover{color:#FF6B35}
.ft-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(232,53,15,.06)}
.ft-bottom p{font-size:13px;color:#9B9BB5;margin-bottom:4px}

/* ===== 内页通用 ===== */
.pg-hero{padding:120px 0 60px;text-align:center;background:linear-gradient(180deg,#16162A 0%,#0D0D1A 100%)}
.pg-hero h1{font-size:clamp(26px,4vw,40px);font-weight:800;margin-bottom:12px}
.pg-hero p{font-size:16px;color:#9B9BB5;max-width:600px;margin:0 auto}
.pg-breadcrumb{padding:12px 0;font-size:13px;color:#9B9BB5}
.pg-breadcrumb a{color:#FF6B35}
.pg-content{padding:60px 0}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .sc-vgrid{grid-template-columns:repeat(2,1fr)}
  .sc-media-grid{grid-template-columns:repeat(2,1fr)}
  .sc-comm-grid{grid-template-columns:repeat(2,1fr)}
  .sc-expert-grid{grid-template-columns:repeat(2,1fr)}
  .sc-review-grid{grid-template-columns:repeat(2,1fr)}
  .sc-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nv-nav{display:none;position:fixed;top:64px;left:0;width:100%;background:#0D0D1A;flex-direction:column;padding:20px;gap:4px;border-bottom:1px solid rgba(232,53,15,.15)}
  .nv-nav.open{display:flex}
  .nv-hamburger{display:flex}
  .nv-search{display:none}
  .nv-search.open{display:flex;position:fixed;top:64px;left:0;width:100%;padding:12px 24px;background:#0D0D1A;border-bottom:1px solid rgba(232,53,15,.15);border-radius:0}
  .nv-search.open input{width:100%}
  .hr-banner{min-height:70vh}
  .hr-content h1{font-size:26px}
  .hr-stats{gap:20px}
  .hr-stat strong{font-size:22px}
  .sc-block{padding:50px 0}
  .sc-vgrid{grid-template-columns:1fr}
  .sc-media-grid{grid-template-columns:1fr}
  .sc-fun-wrap{grid-template-columns:1fr}
  .sc-fun-cards{grid-template-columns:1fr 1fr}
  .sc-ai-wrap{grid-template-columns:1fr}
  .sc-comm-grid{grid-template-columns:1fr}
  .sc-expert-grid{grid-template-columns:1fr}
  .sc-review-grid{grid-template-columns:1fr}
  .sc-steps{grid-template-columns:1fr}
  .sc-contact-wrap{grid-template-columns:1fr}
  .sc-contact-qr{justify-content:flex-start}
  .ft-top{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .sc-fun-cards{grid-template-columns:1fr}
  .hr-btns{flex-direction:column;align-items:center}
}