/* SPIDI 中国官网 — 样式表
   仅使用系统字体，不引用任何境外资源（Google Fonts / CDN 等）。 */
:root{
  --ink:#1d2024; --asphalt:#2a2e33; --asphalt-2:#3a3f45; --steel:#646a71;
  --line:#dcdfe3; --mist:#f3f4f6; --white:#fff;
  --kerb:#c8102e; --kerb-dark:#a50d26; --hivis:#f4d21f;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-cond:"DIN Alternate","Bahnschrift","Arial Narrow","PingFang SC","Microsoft YaHei",sans-serif;
  --wrap:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:#fff;line-height:1.75;font-size:16px}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--kerb)}
h1,h2,h3,h4{line-height:1.3;margin:0}
ul{margin:0;padding:0}
:focus-visible{outline:3px solid var(--hivis);outline-offset:2px;box-shadow:0 0 0 6px var(--ink)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--hivis);color:var(--ink);padding:10px 16px;z-index:200}
.skip:focus{left:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;padding:12px 28px;font:700 15px/1.4 var(--font);border:2px solid var(--kerb);background:var(--kerb);color:#fff;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn:hover{background:var(--kerb-dark);border-color:var(--kerb-dark);color:#fff}
.btn.ghost{background:transparent;border-color:#fff}
.btn.ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn.line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn.line:hover{background:var(--ink);color:#fff}
.btn.dark{background:var(--ink);border-color:var(--ink)}
.btn.dark:hover{background:var(--kerb);border-color:var(--kerb)}

/* ---------- 顶部 ---------- */
.util{background:var(--mist);font-size:13px;border-bottom:1px solid var(--line)}
.util .wrap{display:flex;justify-content:space-between;align-items:center;min-height:40px;gap:16px}
.util .note{color:var(--steel);margin:0}
.util .note a{color:var(--ink);font-weight:700;margin-left:8px;text-decoration:underline}
.util ul{display:flex;gap:22px;list-style:none;align-items:center}
.util button{font:inherit;background:none;border:0;padding:6px 0;cursor:pointer;color:inherit}
.util button:hover,.util a:hover{color:var(--kerb)}

.bar{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.bar>.wrap{display:flex;align-items:center;gap:36px;min-height:72px}
.logo{display:flex;align-items:center;font-family:var(--font-cond);font-weight:900;font-style:italic;font-size:36px;letter-spacing:.06em;line-height:1;color:var(--ink);flex:none}
.logo:hover{color:var(--kerb)}
.logo img{display:block;height:38px;width:auto;max-width:220px}
@media (max-width:960px){.logo img{height:30px}}
.nav{flex:1}
.nav>ul{display:flex;gap:2px;list-style:none}
.nav>ul>li{position:static}
.nav>ul>li>a,.nav>ul>li>button{display:block;padding:26px 18px;font:600 16px/1.2 var(--font);background:none;border:0;cursor:pointer;color:var(--ink);border-bottom:3px solid transparent}
.nav>ul>li:hover>a,.nav>ul>li:hover>button,.nav>ul>li.open>button,.nav>ul>li.cur>a,.nav>ul>li.cur>button{border-bottom-color:var(--kerb)}
.nav-extra{display:none}
.mega{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 18px 30px -18px rgba(0,0,0,.35)}
.has-mega:hover>.mega,.has-mega:focus-within>.mega,.has-mega.open>.mega{display:block}
.mega .wrap{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px;padding-top:28px;padding-bottom:32px}
.mega h4{font-size:14px;color:var(--steel);font-weight:600;margin-bottom:10px}
.mega ul{list-style:none}
.mega li a{display:block;padding:5px 0;font-size:15px}
.mega .cols2{columns:2;column-gap:20px}
.mega .promo{background:var(--asphalt);color:#fff;padding:22px;display:flex;flex-direction:column;justify-content:flex-end;min-height:160px}
.mega .promo b{font-size:18px;line-height:1.4}
.mega .promo span{font-size:14px;color:#cfd3d8;margin:6px 0 14px}
.mega .promo a{color:var(--hivis);font-weight:700;padding:0}
.tools{display:flex;gap:8px;align-items:center;margin-left:auto}
.tools a,.tools button{font:600 14px/1 var(--font);background:none;border:1px solid var(--line);padding:11px 16px;cursor:pointer;color:var(--ink)}
.tools a:hover,.tools button:hover{border-color:var(--ink);color:var(--ink)}
.burger{display:none;width:46px;height:46px;background:none;border:1px solid var(--line);cursor:pointer;position:relative;z-index:80}
.burger i,.burger i::before,.burger i::after{content:"";position:absolute;left:12px;right:12px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.burger i{top:22px}.burger i::before{top:-7px;left:0;right:0}.burger i::after{top:7px;left:0;right:0}
.burger[aria-expanded="true"] i{background:transparent}
.burger[aria-expanded="true"] i::before{transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] i::after{transform:translateY(-7px) rotate(-45deg)}

/* ---------- 首屏轮播 ---------- */
.hero{position:relative;background:var(--asphalt);color:#fff}
.slides{position:relative;height:clamp(460px,70vh,680px)}
.slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;visibility:hidden;transition:opacity .6s}
.slide.on{opacity:1;visibility:visible}
.slide::before{content:"";position:absolute;inset:0;
  background:var(--img,linear-gradient(transparent,transparent)) center/cover no-repeat,
  repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 26px),
  linear-gradient(115deg,#1e2124 0%,#3a3f45 62%,#2a2e33 100%)}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,20,23,.78) 0%,rgba(18,20,23,.25) 65%,rgba(18,20,23,0) 100%)}
.slide .wrap{position:relative;z-index:2;width:100%}
.slide .txt{max-width:640px}
.slide .tag{font:600 14px/1.4 var(--font-cond);letter-spacing:.16em;color:var(--hivis);margin:0 0 14px}
.slide h2{font-size:clamp(28px,4.6vw,56px);line-height:1.22;font-weight:800;margin-bottom:16px}
.slide p.lead{font-size:18px;color:#e6e8eb;max-width:32em;margin:0 0 28px}
.slide .acts{display:flex;gap:12px;flex-wrap:wrap}
.hctl{position:absolute;right:0;left:0;bottom:30px;z-index:5}
.hctl .wrap{display:flex;justify-content:flex-end;gap:8px}
.dot{width:46px;height:28px;background:none;border:0;padding:0;cursor:pointer;position:relative}
.dot::after{content:"";position:absolute;left:0;right:0;top:11px;height:5px;background:rgba(255,255,255,.4)}
.dot[aria-current="true"]::after{background:var(--hivis)}
.kerb{height:10px;background:repeating-linear-gradient(90deg,var(--kerb) 0 40px,#fff 40px 80px)}

/* ---------- 通用区块 ---------- */
.sec{padding:72px 0}
.sec.alt{background:var(--mist)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.sec-head p{margin:6px 0 0;color:var(--steel)}
.more{font-weight:700;border-bottom:2px solid var(--kerb);padding-bottom:2px}
.intro{max-width:38em}
.intro h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;margin-bottom:14px}
.intro p{margin:0;color:var(--steel);font-size:18px}

.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.feat{position:relative;min-height:460px;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.feat::before{content:"";position:absolute;inset:0;
  background:var(--img,linear-gradient(transparent,transparent)) center/cover no-repeat,
  repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 26px),
  linear-gradient(160deg,#33383e,#1e2124)}
.feat:nth-child(2)::before{background:var(--img,linear-gradient(transparent,transparent)) center/cover no-repeat,repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 26px),linear-gradient(160deg,#4a4f56,#26292d)}
.feat::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,17,19,.85),rgba(15,17,19,0) 60%)}
.feat .in{position:relative;z-index:2;padding:32px 28px}
.feat h3{font:800 28px/1.15 var(--font-cond);letter-spacing:.03em;margin-bottom:8px}
.feat p{margin:0 0 16px;color:#dfe2e6;font-size:15px}
.feat a.btn{padding:10px 22px}

/* ---------- 产品卡片 ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px 24px}
.card{position:relative}
.card-media{display:block;position:relative;background:linear-gradient(140deg,#eceef1,#d3d7dc);overflow:hidden}
.card-media::before{content:"";display:block;padding-top:125%}
.card-media .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:900 italic 46px/1 var(--font-cond);letter-spacing:.04em;color:rgba(42,46,51,.16)}
.card-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover .card-media img{transform:scale(1.03)}
.badge{position:absolute;left:0;top:14px;background:var(--hivis);color:var(--ink);font-weight:800;font-size:13px;padding:2px 12px;z-index:3}
.card h3{font:700 18px/1.3 var(--font-cond);letter-spacing:.03em;margin:14px 0 2px}
.card .type{margin:0;color:var(--steel);font-size:14px}
.empty{padding:56px 0;color:var(--steel);text-align:left;max-width:36em}
.empty strong{display:block;color:var(--ink);font-size:18px;margin-bottom:6px}

.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;list-style:none}
.cats a{display:block;padding:20px 18px;background:#fff;border:1px solid var(--line);font-weight:700;border-left:4px solid var(--ink)}
.cats a:hover{border-left-color:var(--kerb);color:var(--ink)}

/* ---------- 内页 ---------- */
.pagehead{background:var(--mist);border-bottom:1px solid var(--line);padding:30px 0 34px}
.crumbs{font-size:13px;color:var(--steel);margin:0 0 14px;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px;color:#a0a5ab}
.crumbs a:hover{color:var(--kerb)}
.pagehead h1{font-size:clamp(28px,4vw,44px);font-weight:800}
.pagehead p{margin:10px 0 0;max-width:38em;color:var(--steel);font-size:17px}
.prose{max-width:40em}
.prose h2{font-size:24px;margin:44px 0 12px;font-weight:800}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;margin:26px 0 8px}
.prose p,.prose li{margin:0 0 14px}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 14px}
.prose a{color:var(--kerb);text-decoration:underline}
.prose table{border-collapse:collapse;width:100%;margin:0 0 20px;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--mist)}
.note-box{border-left:4px solid var(--hivis);background:var(--mist);padding:14px 18px;margin:0 0 24px;font-size:15px}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cols3>div{border-top:4px solid var(--ink);padding-top:16px}
.cols3 h3{font-size:19px;margin-bottom:8px}
.cols3 p{margin:0;color:var(--steel)}
.timeline{list-style:none;border-left:3px dashed var(--line);margin:0 0 0 6px;padding:0 0 0 24px}
.timeline li{margin:0 0 22px;position:relative}
.timeline li::before{content:"";position:absolute;left:-32px;top:8px;width:11px;height:11px;background:var(--kerb)}
.timeline b{font:800 20px/1.2 var(--font-cond)}

.filters{display:flex;flex-wrap:wrap;gap:14px 32px;margin:0 0 32px;padding:0 0 22px;border-bottom:1px solid var(--line)}
.fgroup{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.fgroup .lab{font-size:14px;color:var(--steel);margin-right:4px}
.chip{font:600 14px/1 var(--font);padding:9px 16px;background:#fff;border:1px solid var(--line);cursor:pointer;color:var(--ink)}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.count{color:var(--steel);font-size:14px;margin:0 0 18px}

.pd{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:start}
.pd-media{position:relative;background:linear-gradient(140deg,#eceef1,#d3d7dc)}
.pd-media::before{content:"";display:block;padding-top:110%}
.pd-media .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:900 italic 96px/1 var(--font-cond);color:rgba(42,46,51,.14)}
.pd-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.pd h1{font:800 clamp(30px,4vw,46px)/1.15 var(--font-cond);letter-spacing:.03em;margin:8px 0 6px}
.pd .type{font-size:18px;color:var(--steel);margin:0 0 22px}
.pd .sum{margin:0 0 26px;font-size:17px}
.spec{border-collapse:collapse;width:100%;margin:0 0 28px;font-size:15px}
.spec th,.spec td{padding:11px 0;border-bottom:1px solid var(--line);text-align:left}
.spec th{width:7em;color:var(--steel);font-weight:600}
.pd .acts{display:flex;gap:12px;flex-wrap:wrap}
.pd .hint{font-size:13px;color:var(--steel);margin-top:18px}

/* ---------- 表单 ---------- */
.form{max-width:640px;display:grid;gap:18px}
.form label{display:block;font-weight:600;font-size:15px;margin-bottom:6px}
.form input[type=text],.form input[type=email],.form input[type=tel],.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid #b9bec4;background:#fff;font:inherit;border-radius:0}
.form textarea{min-height:150px;resize:vertical}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--steel)}
.consent input{margin-top:5px;width:18px;height:18px;flex:none}
.consent a{color:var(--kerb);text-decoration:underline}
.form-status{min-height:1.6em;font-size:15px;margin:0}
.form-status.ok{color:#1a7a3c}.form-status.err{color:var(--kerb)}
.req{color:var(--kerb)}
.hp{position:absolute;left:-9999px}

details.faq{border-bottom:1px solid var(--line);padding:16px 0}
details.faq summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:16px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:22px;line-height:1;color:var(--kerb)}
details.faq[open] summary::after{content:"−"}
details.faq p{margin:12px 0 0;color:#3f444a}

.dealers{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:start}
.dealer-list{list-style:none;display:grid;gap:14px}
.dealer{border:1px solid var(--line);padding:18px 20px;border-left:4px solid var(--ink)}
.dealer h3{font-size:17px;margin-bottom:4px}
.dealer p{margin:0;font-size:14px;color:var(--steel)}
.dealer a{color:var(--kerb);font-weight:700;font-size:14px}
.mapbox{background:var(--mist);border:1px dashed #a0a5ab;min-height:420px;display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--steel);font-size:14px}

/* ---------- 页脚 ---------- */
.foot{background:var(--asphalt);color:#d5d9de;font-size:14px}
.foot a{color:#d5d9de}.foot a:hover{color:var(--hivis)}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;padding:56px 0 44px}
.foot h4{font-size:15px;color:#fff;margin-bottom:12px}
.subscribe p{margin:0 0 14px}
.subscribe .row{display:flex;gap:0;max-width:460px}
.subscribe input[type=email]{flex:1;min-width:0;padding:12px 14px;border:1px solid #6b7178;background:#1f2226;color:#fff;font:inherit;border-radius:0}
.subscribe .btn{border-radius:0}
.subscribe .consent{margin-top:12px;color:#aab0b7}
.subscribe .consent a{color:var(--hivis)}
.subscribe .form-status{margin-top:8px}
.social{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin-top:6px}
.social a,.social button{display:block;padding:9px 16px;border:1px solid #6b7178;color:#fff;background:none;font:14px/1 var(--font);cursor:pointer}
.social a:hover,.social button:hover{border-color:var(--hivis);color:var(--hivis)}
.lane{border:0;border-top:3px dashed rgba(255,255,255,.22);margin:0}
.foot-cols{display:grid;grid-template-columns:repeat(5,1fr);gap:28px;padding:40px 0}
.foot-cols ul{list-style:none;display:grid;gap:8px}
.foot-banner{padding:0 0 36px}
.foot-banner a{display:flex;justify-content:space-between;align-items:center;gap:16px;border:1px solid #4a4f56;padding:20px 24px;color:#fff}
.foot-banner a:hover{border-color:var(--hivis)}
.foot-banner b{font:800 22px/1.2 var(--font-cond);letter-spacing:.05em}
.foot-bottom{background:#1f2226;padding:22px 0;font-size:13px;color:#aab0b7}
.foot-bottom .wrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.foot-bottom p{margin:0}
.beian{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.beian a{color:#d5d9de;display:inline-flex;gap:6px;align-items:center}
.beian img{width:16px;height:16px;display:inline-block}

/* ---------- 弹窗 / Cookie ---------- */
.modal{position:fixed;inset:0;background:rgba(15,17,19,.6);z-index:150;display:flex;align-items:center;justify-content:center;padding:20px}
.modal[hidden]{display:none}
.modal .box{background:#fff;max-width:520px;width:100%;padding:32px;position:relative}
.modal h2{font-size:22px;margin-bottom:6px}
.modal .x{position:absolute;right:10px;top:10px;width:44px;height:44px;border:0;background:none;font-size:26px;cursor:pointer}
.modal ul{list-style:none;margin:18px 0 0;display:grid;gap:10px}
.modal li a{display:block;border:1px solid var(--line);padding:14px 16px;font-weight:600}
.modal li a small{display:block;font-weight:400;color:var(--steel)}
.modal li a.cur{border-color:var(--ink);border-left:4px solid var(--kerb)}
.cookie{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:4px solid var(--ink);box-shadow:0 -10px 30px rgba(0,0,0,.14);z-index:120;padding:16px 0}
.cookie[hidden]{display:none}
.cookie .wrap{display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cookie p{margin:0;font-size:14px;max-width:60em}
.cookie a{color:var(--kerb);text-decoration:underline}
.cookie .acts{display:flex;gap:10px}
.cookie .btn{padding:9px 20px;font-size:14px}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .foot-cols{grid-template-columns:repeat(3,1fr)}
  .mega .wrap{grid-template-columns:1.3fr 1fr 1fr}.mega .promo{display:none}
}
@media (max-width:960px){
  .util .note{display:none}.util ul{margin-left:auto}
  .util ul li.hide-m{display:none}
  .burger{display:block;margin-left:auto}
  .tools{display:none}
  .bar>.wrap{min-height:64px;gap:12px}
  .nav{position:fixed;top:0;right:0;bottom:0;width:min(88vw,400px);background:#fff;transform:translateX(102%);transition:transform .25s;overflow:auto;padding:76px 20px 32px;z-index:70;box-shadow:-20px 0 40px rgba(0,0,0,.2)}
  .nav.open{transform:none}
  .nav>ul{display:block}
  .nav>ul>li>a,.nav>ul>li>button{width:100%;text-align:left;padding:16px 4px;border-bottom:1px solid var(--line)}
  .has-mega:hover>.mega,.has-mega:focus-within>.mega{display:none}
  .has-mega.open>.mega{display:block}
  .mega{position:static;box-shadow:none;border:0}
  .mega .wrap{display:block;padding:8px 4px 16px}
  .mega .wrap>div{margin-bottom:14px}
  .nav-extra{display:block;margin-top:24px}
  .nav-extra ul{display:grid;gap:4px;list-style:none}
  .nav-extra a{display:block;padding:10px 4px;color:var(--steel)}
  .feats{grid-template-columns:1fr}.feat{min-height:340px}
  .pd{grid-template-columns:1fr;gap:28px}
  .dealers{grid-template-columns:1fr}
  .cols3{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr;gap:32px}
}
@media (max-width:640px){
  .grid{grid-template-columns:repeat(2,1fr);gap:28px 14px}
  .sec{padding:52px 0}
  .form .two{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr 1fr}
  .slides{height:clamp(480px,78vh,620px)}
  .slide p.lead{font-size:16px}
  .card h3{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;scroll-behavior:auto!important}
}