/* 燕山机动车检测场 官网样式 —— 无外部依赖（国内访问不加载任何境外字体/CDN） */
:root{
  --navy:#13315c; --navy-2:#0d2442; --blue:#1f5fa8;
  --green:#178a4a; --green-soft:#e8f5ee;
  --red:#d7322d; --red-soft:#fdecea;
  --ink:#1c2430; --ink-2:#4a5565; --ink-3:#7a8494;
  --line:#e3e7ed; --bg:#ffffff; --bg-2:#f4f6f9;
  --radius:14px; --shadow:0 6px 24px rgba(19,49,92,.10);
  --max:1180px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img,video{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.3;color:var(--navy)}
h2{font-size:clamp(24px,3.2vw,32px);margin-bottom:10px}
h3{font-size:19px;margin-bottom:6px}
.lead{color:var(--ink-2);font-size:17px;max-width:760px}
.section{padding:64px 0}
.section.alt{background:var(--bg-2)}
.section-head{margin-bottom:32px}
.eyebrow{display:inline-block;color:var(--green);font-weight:700;letter-spacing:.08em;font-size:13px;margin-bottom:6px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-weight:800;font-size:18px;white-space:nowrap}
.brand:hover{text-decoration:none}
.brand img{width:40px;height:40px}
.brand small{display:block;font-weight:500;font-size:11px;color:var(--ink-3);letter-spacing:.02em}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:var(--ink);padding:8px 12px;border-radius:8px;font-size:15px}
.nav a:hover{background:var(--bg-2);text-decoration:none}
.nav a.active{color:var(--green);font-weight:700}
.header-tel{display:flex;flex-direction:column;align-items:flex-end;color:var(--navy);font-weight:800;font-size:20px;line-height:1.1;white-space:nowrap}
.header-tel span{font-size:11px;color:var(--ink-3);font-weight:500}
.header-tel:hover{text-decoration:none}
.menu-btn{display:none;margin-left:auto;background:none;border:0;width:44px;height:44px;font-size:24px;color:var(--navy);cursor:pointer}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:700;font-size:16px;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s;font-family:inherit}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-wechat{background:var(--green);color:#fff;box-shadow:0 6px 18px rgba(23,138,74,.3)}
.btn-tel{background:#fff;color:var(--navy)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.5)}
.btn-outline{background:#fff;color:var(--navy);border:1.5px solid var(--navy)}
.icon{width:20px;height:20px;flex:none}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;background:var(--navy-2)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 30%}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,36,66,.92) 0%,rgba(13,36,66,.72) 48%,rgba(13,36,66,.25) 100%)}
.hero .wrap{position:relative;padding-top:80px;padding-bottom:80px}
.hero h1{color:#fff;font-size:clamp(32px,5.4vw,54px);letter-spacing:.02em}
.hero .sub{font-size:clamp(16px,2vw,20px);opacity:.92;margin:12px 0 22px;max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.tag{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);padding:5px 12px;border-radius:999px;font-size:14px}
.tag.hot{background:var(--red);border-color:var(--red);font-weight:700}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-hours{margin-top:22px;font-size:15px;opacity:.9}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);margin-top:-44px;position:relative;z-index:2}
.stat{padding:22px 10px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(26px,3.4vw,36px);color:var(--navy);line-height:1.1}
.stat b small{font-size:15px;margin-left:2px}
.stat span{font-size:14px;color:var(--ink-2)}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.card .pic{aspect-ratio:4/3;object-fit:cover;width:100%}
.card .body{padding:18px 20px 20px}
.card p{color:var(--ink-2);font-size:15px}
.feature{padding:24px;background:#fff;border-radius:var(--radius);border:1px solid var(--line)}
.feature .ico{width:44px;height:44px;border-radius:12px;background:var(--green-soft);color:var(--green);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.feature .ico svg{width:24px;height:24px}
.feature p{color:var(--ink-2);font-size:15px}

/* ---------- price ---------- */
.price-box{display:grid;grid-template-columns:1.1fr 1fr;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.price-main{padding:32px}
.price-row{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin:10px 0 4px}
.price-old{font-size:20px;color:var(--ink-2)}
.price-old b{font-size:28px;color:var(--ink)}
.price-promo{background:linear-gradient(135deg,#e2382f,#b91f1a);color:#fff;padding:32px;display:flex;flex-direction:column;justify-content:center}
.price-promo .label{font-size:14px;background:rgba(255,255,255,.2);align-self:flex-start;padding:3px 10px;border-radius:999px;margin-bottom:8px}
.price-promo .num{font-size:64px;font-weight:800;line-height:1}
.price-promo .num small{font-size:24px}
.price-promo p{opacity:.9;font-size:14px;margin-top:8px}
.note{font-size:13px;color:var(--ink-3);margin-top:10px}

/* ---------- process ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;position:relative}
.step::before{counter-increment:s;content:counter(s);display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;margin-bottom:10px}
.step h3{font-size:17px}
.step p{font-size:14px;color:var(--ink-2)}
.videos{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.videos figure{border-radius:12px;overflow:hidden;background:#000}
.videos video{aspect-ratio:9/16;object-fit:cover;width:100%}
.videos figcaption{background:var(--navy);color:#fff;font-size:13px;text-align:center;padding:6px}

/* ---------- reviews ---------- */
.rating{display:flex;align-items:center;gap:14px;margin-bottom:24px;flex-wrap:wrap}
.rating b{font-size:44px;color:var(--red);line-height:1}
.stars{color:#f5a623;letter-spacing:2px;font-size:20px}
.review{background:#fff;border-radius:var(--radius);padding:22px;border:1px solid var(--line);display:flex;flex-direction:column}
.review q{quotes:none;color:var(--ink);font-size:15px;flex:1}
.review .who{margin-top:12px;font-size:13px;color:var(--ink-3)}

/* ---------- gallery / timeline ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.gallery figure{position:relative;border-radius:12px;overflow:hidden}
.gallery img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .4s}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:24px 12px 10px;color:#fff;font-size:14px;background:linear-gradient(transparent,rgba(0,0,0,.7))}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl{position:relative;padding-bottom:22px}
.tl::before{content:"";position:absolute;left:-26px;top:7px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--green)}
.tl b{color:var(--navy);font-size:17px}
.tl p{color:var(--ink-2);font-size:15px}
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.certs figure{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
.certs img{aspect-ratio:4/3;object-fit:contain;width:100%;background:var(--bg-2);border-radius:8px}
.certs figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px}

/* ---------- tables / faq ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;background:#fff;min-width:560px}
th,td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:15px;vertical-align:top}
th{background:var(--navy);color:#fff;font-weight:600}
tr:last-child td{border-bottom:0}
.check{list-style:none}
.check li{padding:10px 0 10px 32px;position:relative;border-bottom:1px dashed var(--line)}
.check li::before{content:"✓";position:absolute;left:4px;top:9px;width:20px;height:20px;border-radius:50%;background:var(--green);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:800}
.warn li::before{content:"!";background:var(--red)}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
summary{padding:16px 20px;cursor:pointer;font-weight:700;color:var(--navy);list-style:none;position:relative;padding-right:44px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:20px;top:12px;font-size:22px;color:var(--green)}
details[open] summary::after{content:"−"}
details .ans{padding:0 20px 18px;color:var(--ink-2)}
.callout{background:var(--green-soft);border-left:4px solid var(--green);padding:16px 20px;border-radius:8px;color:var(--ink)}
.callout.red{background:var(--red-soft);border-color:var(--red)}

/* ---------- contact ---------- */
.contact-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:32px;display:grid;grid-template-columns:1.2fr 1fr;gap:28px}
.contact-card h2,.contact-card h3{color:#fff}
.contact-list{list-style:none}
.contact-list li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.15);display:flex;gap:12px}
.contact-list li span:first-child{opacity:.7;min-width:72px}
.contact-list a{color:#fff;font-weight:700}
.wx-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.wx{background:#fff;color:var(--ink);border-radius:12px;padding:16px;text-align:center}
.wx .qr{aspect-ratio:1;background:var(--bg-2);border:1px dashed #b8c1cc;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:13px;margin-bottom:10px}
.wx .qr img{width:100%;height:100%;object-fit:contain}
.wx b{display:block;color:var(--navy)}
.wx .num{font-size:17px;font-weight:800;color:var(--green);margin:2px 0 8px;letter-spacing:.02em}
.wx .btn{padding:8px 14px;font-size:14px;width:100%}

/* ---------- page head ---------- */
.page-head{background:var(--navy-2);color:#fff;position:relative;overflow:hidden}
.page-head .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.page-head .wrap{position:relative;padding:56px 20px 48px}
.page-head h1{color:#fff;font-size:clamp(28px,4.2vw,42px)}
.page-head p{opacity:.9;margin-top:8px;max-width:680px}
.crumb{font-size:13px;opacity:.75;margin-bottom:10px}
.crumb a{color:#fff}

/* ---------- footer ---------- */
.site-footer{background:#0b1a30;color:#c5cfdc;padding:48px 0 110px;font-size:14px}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:10px}
.site-footer a{color:#c5cfdc}
.site-footer ul{list-style:none}
.site-footer li{padding:3px 0}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px;font-size:13px;color:#8d9aab;display:flex;flex-wrap:wrap;gap:6px 18px}

/* ---------- action bar (mobile) & float (desktop) ---------- */
.action-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;grid-template-columns:1fr 1fr 1.3fr;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 18px rgba(0,0,0,.08);padding:8px 10px calc(8px + env(safe-area-inset-bottom))}
.action-bar a,.action-bar button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:12px;color:var(--navy);background:none;border:0;font-family:inherit;padding:4px 0;cursor:pointer}
.action-bar a:hover{text-decoration:none}
.action-bar .main{background:var(--green);color:#fff;border-radius:12px;font-size:15px;font-weight:700;flex-direction:row;gap:6px}
.float-wx{position:fixed;right:20px;bottom:24px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float-wx .btn{box-shadow:var(--shadow)}

.toast{position:fixed;left:50%;bottom:96px;transform:translate(-50%,20px);background:rgba(20,28,40,.94);color:#fff;padding:12px 18px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:100;max-width:88vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .steps{grid-template-columns:repeat(3,1fr)}
  .g4,.certs{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 16px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav a{padding:12px}
  .menu-btn{display:block}
  .header-tel{display:none}
  .g3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(3,1fr)}
  .stat:nth-child(3){border-right:0}
  .stat:nth-child(n+4){border-top:1px solid var(--line)}
  .price-box,.contact-card{grid-template-columns:1fr}
  .videos{grid-template-columns:repeat(5,72%);overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px}
  .videos figure{scroll-snap-align:start}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .site-footer .cols{grid-template-columns:1fr}
  .action-bar{display:grid}
  .float-wx{display:none}
}
@media (max-width:560px){
  body{font-size:15px}
  .wrap{padding:0 16px}
  .section{padding:48px 0}
  .g2,.g3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:1px solid var(--line)!important;border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
  .stat:nth-child(2n){border-right:0!important}
  .stat:last-child{grid-column:1/-1;border-right:0!important}
  .hero .wrap{padding-top:52px;padding-bottom:72px}
  .hero-cta .btn{flex:1 1 100%}
  .brand{font-size:16px}
  .price-main,.price-promo,.contact-card{padding:24px}
  .wx-cards{grid-template-columns:1fr 1fr;gap:10px}
  table{min-width:0}
  th,td{padding:10px 12px;font-size:14px}
  td:first-child{white-space:nowrap}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}