/* ============================================================
   骑行搭子 · 共享样式
   设计对齐 99spokes：白底 + 红色强调 + 简洁电商风
   ============================================================ */
:root{
  --red:#E0231E;
  --red-dark:#C11D18;
  --red-soft:#FEF1F0;
  --ink:#1A1A1A;
  --sub:#6B7280;
  --line:#E5E7EB;
  --bg:#FFFFFF;
  --bg-soft:#F7F8FA;
  --green:#0B241C;
  --radius:10px;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 4px 14px rgba(0,0,0,.05);
  --shadow-hover:0 4px 10px rgba(0,0,0,.09),0 10px 28px rgba(0,0,0,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
img{display:block;max-width:100%}
input,select{font-family:inherit;font-size:14px;outline:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- 顶部横幅 ---------- */
.topbar{
  background:#fff;color:#374151;font-size:13px;
  display:flex;align-items:center;justify-content:center;gap:16px;
  padding:8px 16px;flex-wrap:wrap;border-bottom:1px solid var(--line);
}
.topbar p{opacity:.9}
.topbar .deals-btn{
  background:var(--red);color:#fff;border:none;border-radius:4px;
  padding:3px 14px;font-size:12px;font-weight:600;letter-spacing:.3px;
}
.topbar .deals-btn:hover{background:var(--red-dark)}

/* ---------- 导航 ---------- */
.navbar{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:60px}
.logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:900;letter-spacing:-.5px}
.logo .mark{width:26px;height:26px;border-radius:7px;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px}
.nav-links{display:flex;align-items:center;gap:4px;flex:1}
.nav-links a{
  padding:7px 14px;border-radius:7px;font-size:15px;font-weight:500;color:var(--ink);
  transition:background .15s,color .15s;
}
.nav-links a:hover{background:var(--bg-soft);color:var(--red)}
.nav-links a.active{color:var(--red);font-weight:700}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-right .currency{
  border:1px solid var(--line);border-radius:7px;padding:5px 10px;
  font-size:13px;color:var(--sub);background:#fff;cursor:pointer;
}
.nav-right .signin{
  border:1px solid var(--ink);border-radius:7px;padding:6px 16px;
  font-size:14px;font-weight:600;background:#fff;color:var(--ink);
}
.nav-right .signin:hover{background:var(--ink);color:#fff}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink)}

/* ---------- 通用页头 ---------- */
.page-head{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:26px 0}
.page-head h1{font-size:26px;font-weight:800;letter-spacing:-.3px}
.page-head .sub{color:var(--sub);font-size:14px;margin-top:4px}

/* ---------- 搜索框 ---------- */
.searchbar{display:flex;gap:10px;margin:18px 0}
.searchbar .search-input{
  flex:1;max-width:480px;border:2px solid var(--line);border-radius:9px;
  padding:11px 16px;font-size:15px;transition:border-color .15s;
}
.searchbar .search-input:focus{border-color:var(--red)}
.searchbar .search-btn{
  background:var(--red);color:#fff;border:none;border-radius:9px;
  padding:0 24px;font-size:15px;font-weight:600;
}
.searchbar .search-btn:hover{background:var(--red-dark)}

/* ---------- 筛选条 ---------- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
.filters select,.filters .chip{
  border:1px solid var(--line);background:#fff;border-radius:8px;
  padding:7px 14px;font-size:14px;color:var(--ink);cursor:pointer;
  transition:all .15s;
}
.filters select:hover,.filters .chip:hover{border-color:var(--red);color:var(--red)}
.filters .chip.active{background:var(--red);border-color:var(--red);color:#fff;font-weight:600}
.filters .chip-clear{color:var(--sub);border-style:dashed}
.filters .chip-clear:hover{color:var(--red);border-color:var(--red)}

/* ---------- 结果工具条 ---------- */
.result-bar{display:flex;align-items:center;justify-content:space-between;margin:16px 0 14px;flex-wrap:wrap;gap:10px}
.result-bar .count{color:var(--sub);font-size:14px}
.result-bar .count b{color:var(--ink);font-size:16px}
.sort-select{border:1px solid var(--line);border-radius:8px;padding:7px 12px;font-size:14px;background:#fff;color:var(--ink)}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.bike-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .18s,box-shadow .18s;cursor:pointer;position:relative;
}
.bike-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.bike-card .thumb{aspect-ratio:4/3;background:var(--bg-soft);position:relative;overflow:hidden}
.bike-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.bike-card:hover .thumb img{transform:scale(1.04)}
.bike-card .thumb .type-tag{
  position:absolute;top:10px;left:10px;background:rgba(0,0,0,.55);color:#fff;
  font-size:11px;padding:2px 8px;border-radius:4px;backdrop-filter:blur(2px);
}
.bike-card .thumb .year-tag{
  position:absolute;top:10px;right:10px;background:var(--red);color:#fff;
  font-size:11px;padding:2px 8px;border-radius:4px;font-weight:600;
}
.bike-card .info{padding:12px 14px 14px}
.bike-card .brand{font-size:12px;color:var(--sub);font-weight:600;letter-spacing:.4px;text-transform:uppercase}
.bike-card .name{font-size:15px;font-weight:700;margin:2px 0 8px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.bike-card .meta{display:flex;align-items:center;justify-content:space-between}
.bike-card .price{font-size:17px;font-weight:800;color:var(--red)}
.bike-card .price .nosale{font-size:13px;color:var(--sub);font-weight:500}
.bike-card .series{font-size:12px;color:var(--sub);background:var(--bg-soft);padding:2px 8px;border-radius:5px}

/* 占位图 */
.img-ph{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#f3f4f6,#e8eaee);color:#9ca3af;font-size:13px;
}

/* ---------- 详情页 ---------- */
.crumb{font-size:13px;color:var(--sub);margin:16px 0}
.crumb a:hover{color:var(--red)}
.detail-top{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;margin:8px 0 30px}
.gallery{position:sticky;top:80px;align-self:start}
.gallery .main-img{aspect-ratio:4/3;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center}
.gallery .main-img img{width:100%;height:100%;object-fit:cover}
.gallery .thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.gallery .thumbs .t{width:64px;height:64px;border-radius:8px;overflow:hidden;border:2px solid transparent;cursor:pointer;background:var(--bg-soft)}
.gallery .thumbs .t.active{border-color:var(--red)}
.gallery .thumbs .t img{width:100%;height:100%;object-fit:cover}

.detail-info .bike-type-line{color:var(--red);font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:4px}
.detail-info h1{font-size:28px;font-weight:800;letter-spacing:-.4px;line-height:1.25}
.detail-info .series-line{color:var(--sub);font-size:14px;margin-top:4px}
.detail-info .desc{color:var(--sub);font-size:14px;margin:14px 0 18px}
.detail-info .price-block{display:flex;align-items:baseline;gap:12px;margin-bottom:18px}
.detail-info .price-main{font-size:34px;font-weight:900;color:var(--red)}
.detail-info .price-note{font-size:13px;color:var(--sub)}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.spec-item{display:flex;justify-content:space-between;align-items:center;background:var(--bg-soft);border-radius:8px;padding:10px 14px;font-size:14px}
.spec-item .k{color:var(--sub)}
.spec-item .v{font-weight:600;text-align:right}
.detail-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.btn{display:inline-flex;align-items:center;gap:7px;border-radius:9px;padding:11px 22px;font-size:15px;font-weight:600;border:none;transition:all .15s}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-dark)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--red);color:var(--red)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-ai{background:linear-gradient(90deg,#e8403a,#ff7a45);color:#fff;box-shadow:0 4px 14px rgba(232,64,58,.28)}
.btn-ai:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(232,64,58,.36)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ---------- 对比页 ---------- */
.compare-empty{
  text-align:center;padding:60px 20px;background:var(--bg-soft);border-radius:14px;
  border:1px dashed var(--line);margin:24px 0;
}
.compare-empty .icon{font-size:44px;margin-bottom:12px}
.compare-empty h3{font-size:20px;font-weight:700;margin-bottom:6px}
.compare-empty p{color:var(--sub);font-size:14px;max-width:440px;margin:0 auto}
.quick-compare{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0 8px}
.qc-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;text-align:center;transition:all .18s;cursor:pointer}
.qc-card:hover{box-shadow:var(--shadow-hover);border-color:var(--red)}
.qc-card .qc-icon{font-size:30px;margin-bottom:8px}
.qc-card h4{font-size:16px;font-weight:700}
.qc-card p{color:var(--sub);font-size:13px;margin-top:4px}
.qc-card .go{color:var(--red);font-size:13px;font-weight:600;margin-top:10px;display:inline-block}

.compare-pick{display:flex;gap:10px;margin:20px 0;flex-wrap:wrap}
.compare-pick .pick-input{
  flex:1;min-width:240px;border:2px solid var(--line);border-radius:9px;padding:11px 15px;
}
.compare-pick .pick-input:focus{border-color:var(--red)}
.compare-slot{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:18px 0;
}
.cslot{border:1px dashed var(--line);border-radius:12px;min-height:240px;display:flex;align-items:center;justify-content:center;color:var(--sub);font-size:14px;background:var(--bg-soft);position:relative}
.cslot.filled{border-style:solid;background:#fff;padding:10px;flex-direction:column;gap:8px}
.cslot .remove{position:absolute;top:8px;right:8px;background:var(--bg-soft);border:none;border-radius:50%;width:26px;height:26px;color:var(--sub);font-size:14px}
.cslot .remove:hover{background:var(--red);color:#fff}
.cslot img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px;background:var(--bg-soft)}
.cslot .cs-name{font-size:14px;font-weight:600;text-align:center;line-height:1.3}
.cslot .cs-price{color:var(--red);font-weight:700;font-size:15px}
.cslot .cs-brand{color:var(--sub);font-size:12px}

.compare-table-wrap{overflow-x:auto;margin:24px 0}
.compare-table{width:100%;border-collapse:collapse;min-width:640px}
.compare-table th,.compare-table td{border:1px solid var(--line);padding:11px 14px;font-size:14px;text-align:left;vertical-align:top}
.compare-table thead th{background:var(--ink);color:#fff;font-weight:600}
.compare-table thead th .ct-img{width:100%;height:130px;object-fit:cover;border-radius:6px;background:var(--bg-soft);margin-bottom:8px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.compare-table thead th .ct-img img{width:100%;height:100%;object-fit:cover;display:block}
.compare-table thead th .ct-name{font-size:14px;line-height:1.3}
.compare-table thead th .ct-price{color:#FFB4B2;font-size:15px;font-weight:700;margin-top:4px}
.compare-table tbody th{background:var(--bg-soft);font-weight:600;width:130px;white-space:nowrap}
.compare-table tbody td{color:var(--ink)}
.compare-table tr:nth-child(even) td{background:#FAFBFC}
.hl-better{color:var(--red);font-weight:700}

/* ---------- 首页 ---------- */
.hero{
  background:linear-gradient(180deg,#FBFBFC 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
  color:var(--ink);padding:60px 0 66px;text-align:center;
}
.hero .tagline{color:var(--red);font-size:14px;font-weight:700;letter-spacing:2px;margin-bottom:12px}
.hero h1{font-size:42px;font-weight:900;letter-spacing:-1px;line-height:1.15}
.hero p{font-size:17px;color:var(--sub);margin:14px auto 26px;max-width:560px}
.hero .hero-search{display:flex;gap:8px;max-width:560px;margin:0 auto}
.hero .hero-search input{
  flex:1;border:2px solid var(--line);border-radius:10px;padding:15px 20px;font-size:16px;
  background:#fff;transition:border-color .15s;
}
.hero .hero-search input:focus{border-color:var(--red)}
.hero .hero-search .btn-red{padding:0 30px;font-size:16px}
.hero .try{font-size:13px;color:var(--sub);margin-top:14px}
.hero .try .to-lib{color:var(--red);font-weight:600;text-decoration:none}
.hero .try .to-lib:hover{text-decoration:underline}
.hero .try b{color:var(--red);font-weight:600}

.section{padding:44px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.section-head h2{font-size:24px;font-weight:800;letter-spacing:-.3px}
.section-head .more{color:var(--red);font-size:14px;font-weight:600}
.section-head .more:hover{text-decoration:underline}
.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tabs .tab{
  border:1px solid var(--line);background:#fff;border-radius:20px;padding:6px 18px;
  font-size:14px;color:var(--sub);transition:all .15s;
}
.tabs .tab.active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600}

.vision{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center;padding:36px 0}
.vision h3{font-size:20px;font-weight:800}
.vision p{color:var(--sub);font-size:15px;max-width:640px;margin:8px auto 0}
.feature-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fcard{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;transition:all .18s}
.fcard:hover{box-shadow:var(--shadow-hover)}
.fcard .f-icon{font-size:28px;margin-bottom:12px}
.fcard h4{font-size:17px;font-weight:700;margin-bottom:6px}
.fcard p{color:var(--sub);font-size:14px}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#9CA3AF;padding:44px 0 30px;margin-top:40px;font-size:14px}
.footer .f-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.footer h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px}
.footer ul{list-style:none}
.footer li{margin-bottom:8px}
.footer a:hover{color:#fff}
.footer .copy{border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:20px;text-align:center;font-size:13px}

/* ---------- 空状态 ---------- */
.empty-state{text-align:center;padding:70px 20px;color:var(--sub)}
.empty-state .icon{font-size:46px;margin-bottom:14px}
.empty-state h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:6px}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .detail-top{grid-template-columns:1fr}
  .gallery{position:static}
  .feature-cards{grid-template-columns:1fr}
  .quick-compare{grid-template-columns:1fr}
  .footer .f-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px;border-bottom:1px solid var(--line);gap:2px}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .hero h1{font-size:32px}
}
@media(max-width:560px){
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .footer .f-grid{grid-template-columns:1fr}
  .hero{padding:44px 0 50px}
}

/* ---------- 首页新增板块 ---------- */
.hero-img{margin:26px auto 0;max-width:1080px;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-hover)}
.hero-img img{width:100%;display:block}

/* 破风旗舰真车展示 */
.hero-aero{margin:30px auto 0;max-width:1080px;text-align:left}
.hero-aero .ha-title{font-size:13px;color:var(--sub);letter-spacing:1px;font-weight:600;margin-bottom:12px;text-align:center}
.hero-aero .ha-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.aero-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:all .18s;cursor:pointer;text-align:left;box-shadow:var(--shadow);
}
.aero-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--red)}
.aero-card .ac-img{aspect-ratio:4/3;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:8px}
.aero-card .ac-img img{width:100%;height:100%;object-fit:contain;transition:transform .3s}
.aero-card:hover .ac-img img{transform:scale(1.04)}
.aero-card .ac-info{padding:10px 14px 14px;border-top:1px solid var(--bg-soft)}
.aero-card .ac-brand{font-size:11px;color:var(--sub);font-weight:700;letter-spacing:.5px}
.aero-card .ac-name{font-size:14px;font-weight:700;margin:2px 0 6px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.aero-card .ac-price{color:var(--red);font-size:15px;font-weight:800}
@media(max-width:900px){.hero-aero .ha-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.hero-aero .ha-grid{grid-template-columns:repeat(2,1fr);gap:10px}}

/* 精选对比 */
.feat-compare{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:stretch;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow);margin-top:18px;
}
.feat-vs{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:0 18px;background:var(--bg-soft)}
.feat-vs .vs{width:44px;height:44px;border-radius:50%;background:var(--red);color:#fff;font-weight:900;font-size:15px;display:flex;align-items:center;justify-content:center}
.feat-vs .vs-tip{font-size:11px;color:var(--sub);margin-top:8px;text-align:center;line-height:1.4}
.feat-bike{display:flex;flex-direction:column;cursor:pointer;transition:background .15s}
.feat-bike:hover{background:var(--bg-soft)}
.feat-bike .fb-img{aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden}
.feat-bike .fb-img img{width:100%;height:100%;object-fit:cover}
.feat-bike .fb-info{padding:14px 16px 16px}
.feat-bike .fb-brand{font-size:12px;color:var(--sub);font-weight:700;letter-spacing:.5px}
.feat-bike .fb-name{font-size:16px;font-weight:700;margin:2px 0 8px;line-height:1.35}
.feat-bike .fb-spec{display:flex;flex-wrap:wrap;gap:6px}
.feat-bike .fb-spec span{font-size:12px;background:var(--bg-soft);border-radius:5px;padding:2px 8px;color:var(--sub)}
.feat-bike .fb-price{color:var(--red);font-size:19px;font-weight:800;margin-top:10px}
.feat-bike .fb-go{color:var(--red);font-size:13px;font-weight:600;margin-top:6px}

/* 三大对比功能卡 */
.feat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:all .18s;cursor:pointer}
.feat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.feat-card .fc-img{aspect-ratio:4/3;background:var(--bg-soft);overflow:hidden}
.feat-card .fc-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.feat-card:hover .fc-img img{transform:scale(1.05)}
.feat-card .fc-body{padding:18px}
.feat-card h4{font-size:17px;font-weight:700;margin-bottom:6px}
.feat-card p{color:var(--sub);font-size:14px}
.feat-card .fc-go{display:inline-block;color:var(--red);font-size:13px;font-weight:600;margin-top:12px}

/* 视频区块 */
.video-wrap{margin-top:18px}
.video-card{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000;aspect-ratio:16/9}
.video-card iframe{width:100%;height:100%;border:0;display:block}
.video-card .v-fallback{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,#0B241C,#134231)}
.video-card .v-fallback .vf-title{font-size:17px;font-weight:700;margin-bottom:12px;padding:0 24px;text-align:center}
.video-card .v-fallback a{background:var(--red);color:#fff;border-radius:8px;padding:10px 22px;font-size:14px;font-weight:600}

/* 视频横排卡（对齐99spokes Our latest on） */
.video-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:18px}
.video-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:all .18s;cursor:pointer;display:block;
}
.video-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--red)}
.video-item .vi-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden}
.video-item .vi-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.video-item:hover .vi-thumb img{transform:scale(1.05)}
.video-item .vi-play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.28);opacity:0;transition:opacity .18s;
}
.video-item:hover .vi-play{opacity:1}
.video-item .vi-play .pbtn{
  width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.92);
  display:flex;align-items:center;justify-content:center;color:var(--red);font-size:16px;
  box-shadow:0 4px 14px rgba(0,0,0,.25);
}
.video-item .vi-dur{
  position:absolute;right:8px;bottom:8px;background:rgba(0,0,0,.75);color:#fff;
  font-size:11px;padding:2px 7px;border-radius:4px;
}
.video-item .vi-body{padding:10px 12px 12px}
.video-item .vi-title{
  font-size:13px;font-weight:600;line-height:1.4;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:36px;
}
.video-item .vi-meta{font-size:11px;color:var(--sub);margin-top:6px}
@media(max-width:1100px){.video-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.video-grid{grid-template-columns:repeat(2,1fr)}}

/* 品牌墙 */
.brand-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:18px}
.brand-cell{
  border:1px solid var(--line);border-radius:12px;padding:16px 12px;text-align:center;
  background:#fff;transition:all .18s;cursor:pointer;display:block;
}
.brand-cell:hover{border-color:var(--red);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.brand-cell .bc-cn{font-size:16px;font-weight:800;letter-spacing:1px}
.brand-cell .bc-en{font-size:11px;color:var(--sub);letter-spacing:2px;margin-top:2px}
.brand-cell .bc-count{font-size:11px;color:var(--red);margin-top:8px}

/* 数据服务 */
.data-service{
  background:var(--ink);color:#fff;border-radius:16px;padding:46px 40px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  background-image:linear-gradient(120deg,rgba(224,35,30,.15),transparent 55%);
}
.data-service h3{font-size:28px;font-weight:900;letter-spacing:-.5px;line-height:1.25}
.data-service h3 span{color:#FF6B68}
.data-service p{color:#9CA3AF;font-size:14.5px;margin-top:14px;line-height:1.8}
.data-service .ds-quote{margin-top:22px;border-left:3px solid var(--red);padding:8px 0 8px 16px;font-size:13.5px;color:#D1D5DB;font-style:italic}
.data-service .ds-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.data-service .ds-stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:18px}
.data-service .ds-stat b{display:block;font-size:26px;font-weight:900;color:#fff}
.data-service .ds-stat span{font-size:12.5px;color:#9CA3AF}
@media(max-width:900px){.data-service{grid-template-columns:1fr;padding:34px 26px}}

/* 骑行图廊 */
.ride-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.ride-gallery .rg-item{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:16/10;cursor:pointer}
.ride-gallery .rg-item img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.ride-gallery .rg-item:hover img{transform:scale(1.06)}
.ride-gallery .rg-item .rg-tag{
  position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.55);color:#fff;
  font-size:12px;padding:3px 10px;border-radius:6px;backdrop-filter:blur(2px);
}
@media(max-width:760px){.ride-gallery{grid-template-columns:repeat(2,1fr)}}

/* 骑行须知 */
.rider-notes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:18px}
.note-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;transition:all .18s;cursor:pointer}
.note-card:hover{box-shadow:var(--shadow-hover);border-color:var(--red)}
.note-card .nc-icon{font-size:24px;margin-bottom:10px}
.note-card h4{font-size:15px;font-weight:700;margin-bottom:6px}
.note-card p{font-size:13px;color:var(--sub);line-height:1.7}
.note-card .nc-date{font-size:11px;color:#B0B5BC;margin-top:10px}
@media(max-width:900px){.rider-notes{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.rider-notes{grid-template-columns:1fr}.feat-cards{grid-template-columns:1fr}}

/* ===== AI 对比解说 ===== */
.ai-compare{margin-top:18px}
.ai-compare-btn{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:9px 18px;font-size:14px;color:var(--text);cursor:pointer;transition:all .2s;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.ai-compare-btn:hover{border-color:var(--red);color:var(--red);box-shadow:var(--shadow-hover)}
.ai-compare-btn:disabled{opacity:.6;cursor:default}
.ai-badge{background:var(--red);color:#fff;font-size:11px;font-weight:700;border-radius:6px;padding:2px 6px}
.ai-compare-result{margin-top:14px;background:#FFF9F7;border:1px solid #FFE3DC;border-radius:12px;padding:18px 20px;line-height:1.75;font-size:14px;color:#3D2F2B}
.ai-loading{color:var(--sub);display:flex;align-items:center;gap:8px}
.ai-loading::before{content:"";width:14px;height:14px;border:2px solid #FFE3DC;border-top-color:var(--red);border-radius:50%;animation:ai-spin .8s linear infinite}
@keyframes ai-spin{to{transform:rotate(360deg)}}
.ai-error{color:#B3261E}
.ai-h3{font-weight:700;margin-top:8px}
.ai-li{margin-top:4px}

/* 轮组结构化展示 */
.spec-item .ws-wrap,.compare-table td .ws-wrap{display:inline-flex;flex-direction:column;gap:3px}
.spec-item .ws-line,.compare-table td .ws-line{font-size:13px;line-height:1.5;color:var(--ink)}
.spec-item .ws-line em,.compare-table td .ws-line em{font-style:normal;color:var(--sub);font-size:12px;margin-right:6px}
.compare-table td .ws-wrap{max-width:300px}

/* ========== 二手行情面板 ========== */
.used-panel{border:1px solid var(--line,#e5e5e5);border-radius:12px;padding:18px;background:#fff}
.used-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:12px}
.used-main,.used-cell{background:#FAFAFA;border:1px solid var(--line,#eee);border-radius:10px;padding:14px}
.used-main .k,.used-cell .k{font-size:12px;color:var(--sub,#777);margin-bottom:6px}
.used-main .v{font-size:26px;font-weight:700;color:var(--red,#E0231E)}
.used-main .sub{font-size:13px;color:var(--ink,#222);margin-top:6px}
.used-cell .v{font-size:16px;font-weight:600;color:var(--ink,#222)}
.used-cell .sub{font-size:12px;color:var(--sub,#777);margin-top:4px}
.used-note{font-size:12.5px;color:#666;line-height:1.7;margin:12px 0 4px;background:#FFF9E8;border-left:3px solid #F59E0B;padding:8px 10px;border-radius:6px}
.used-empty{padding:22px;text-align:center;color:var(--sub,#777)}
.used-loading{padding:18px;text-align:center;color:var(--sub,#777)}
.btn-sm{padding:6px 12px;font-size:13px;margin-left:6px}

/* ========== 报料弹窗 ========== */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:999}
.modal-card{background:#fff;border-radius:14px;padding:22px;width:min(420px,92vw);box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.modal-head h3{margin:0;font-size:17px}
.modal-x{cursor:pointer;color:var(--sub,#888);font-size:16px;padding:4px}
.modal-sub{font-size:13px;color:var(--sub,#666);margin:0 0 12px}
.modal-label{display:block;font-size:13px;color:#333;margin:10px 0 4px}
.modal-label input,.modal-label select{display:block;width:100%;margin-top:5px;padding:9px 11px;border:1px solid #d9d9d9;border-radius:8px;font-size:14px;box-sizing:border-box}
.modal-err{color:var(--red,#E0231E);font-size:12.5px;min-height:18px;margin:6px 0}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:10px}

/* ========== 悬浮报料按钮 ========== */
.fab-report{position:fixed;right:20px;bottom:24px;z-index:800;display:flex;align-items:center;gap:8px;background:var(--red,#E0231E);color:#fff;border:none;border-radius:999px;padding:12px 18px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px rgba(224,35,30,.35)}
.fab-report:hover{background:#c81e1a}
@media(max-width:760px){.used-grid{grid-template-columns:1fr 1fr}.used-main{grid-column:1/-1}}