/* ============ 基础 ============ */
:root{
  --paper:#f6f5f1;
  --surface:#ffffff;
  --ink:#141715;
  --ink-2:#2b312e;
  --muted:#6b716d;
  --line:#e3e1d8;
  --brand:#c8102e;
  --brand-2:#a80d26;
  --brand-soft:#fbecee;
  --dark:#0f1110;
  --radius:18px;
  --wrap:1180px;
  --ease:cubic-bezier(.22,.68,.28,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
::selection{background:rgba(200,16,46,.16)}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
section{position:relative}
.sec{padding:clamp(60px,6.6vw,94px) 0}
p{text-wrap:pretty}
.sec-index{display:inline-block;font-size:11.5px;letter-spacing:.2em;color:var(--brand);font-weight:600;font-variant-numeric:tabular-nums}
.sec-head{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:36px;align-items:end;border-top:1px solid var(--line);padding-top:26px;margin-bottom:clamp(36px,4.5vw,56px)}
.sec-head h2{font-size:clamp(27px,3.3vw,42px);line-height:1.16;font-weight:600;letter-spacing:-.025em;margin-top:12px;text-wrap:balance}
.sec-lead{color:var(--muted);font-size:15.5px;max-width:46ch;justify-self:end}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:12px;top:12px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 24px;border-radius:12px;font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform .25s var(--ease),background .25s,border-color .25s,color .25s,box-shadow .25s;white-space:nowrap}
.btn svg{flex:0 0 auto}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px -16px rgba(200,16,46,.85)}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:0 18px 34px -18px rgba(200,16,46,.85)}
.btn-ghost{border:1px solid #d5d3c9;color:var(--ink);background:rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:var(--ink);background:#fff;transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:10px}

/* ============ 头部 ============ */
.header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.header.scrolled{background:rgba(246,245,241,.88);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom-color:var(--line)}
.header-inner{height:74px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:14px;margin-right:auto}
.brand img{height:40px;width:auto}
.brand-tag{font-size:10.5px;letter-spacing:.16em;color:var(--muted);border-left:1px solid var(--line);padding-left:14px;line-height:1.5}
.nav ul{display:flex;align-items:center;gap:28px}
.nav a{font-size:14px;color:var(--ink-2);position:relative;padding:6px 0;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--brand);transition:right .3s var(--ease)}
.nav a:hover,.nav a.active{color:var(--brand)}
.nav a:hover::after,.nav a.active::after{right:0}
.header-tel{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.header-tel svg{color:var(--brand)}
.burger{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);position:relative;transition:background .2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--ink);transition:transform .25s}
.burger span::before{top:-5.5px}
.burger span::after{top:5.5px}
.burger.active span{background:transparent}
.burger.active span::before{transform:translateY(5.5px) rotate(45deg)}
.burger.active span::after{transform:translateY(-5.5px) rotate(-45deg)}

/* ============ Hero ============ */
.hero{padding:clamp(120px,15vh,164px) 0 clamp(56px,6vw,84px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-30% -10% auto;height:75%;background:radial-gradient(58% 62% at 50% 0%,rgba(200,16,46,.07),transparent 72%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(20,23,21,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(20,23,21,.05) 1px,transparent 1px);background-size:68px 68px;-webkit-mask-image:radial-gradient(66% 52% at 50% 6%,#000 12%,transparent 76%);mask-image:radial-gradient(66% 52% at 50% 6%,#000 12%,transparent 76%);opacity:.7}
.hero .wrap{position:relative;z-index:1}
.hero-copy{max-width:940px;margin:0 auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:.13em;color:var(--ink-2);background:rgba(255,255,255,.72);border:1px solid var(--line);padding:7px 14px;border-radius:999px;backdrop-filter:blur(6px)}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block;box-shadow:0 0 0 4px rgba(200,16,46,.12)}
.hero h1{font-size:clamp(38px,6.4vw,74px);line-height:1.06;letter-spacing:-.035em;font-weight:600;margin:26px 0 0}
.hero h1 em{font-style:normal;color:var(--brand);background:linear-gradient(transparent 76%,rgba(200,16,46,.13) 76%)}
.hero-lead{max-width:640px;margin:24px auto 0;color:var(--muted);font-size:clamp(15px,1.5vw,17px);line-height:1.85}
.hero-actions{display:flex;justify-content:center;gap:12px;margin-top:34px;flex-wrap:wrap}
.hero-points{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 22px;margin-top:30px;color:var(--ink-2);font-size:13px}
.hero-points li{display:flex;align-items:center;gap:7px}
.hero-points svg{color:var(--brand);flex:0 0 auto}
.hero-media{margin-top:clamp(38px,5vw,64px);position:relative;border-radius:22px;overflow:hidden;aspect-ratio:21/9;background:#dfe2dd;box-shadow:0 40px 80px -50px rgba(16,22,18,.6)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,12,.18) 0%,transparent 32%,transparent 52%,rgba(10,14,12,.55) 100%);pointer-events:none}
.shot-tag{position:absolute;top:20px;left:22px;z-index:2;display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;color:#1d2420;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);padding:8px 13px;border-radius:999px;font-weight:600}
.shot-tag i{width:5px;height:5px;border-radius:50%;background:var(--brand)}
.hero-chips{position:absolute;left:22px;bottom:20px;right:22px;z-index:2;display:flex;flex-wrap:wrap;gap:8px}
.hero-chips li{font-size:12.5px;color:#fff;border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.12);backdrop-filter:blur(8px);padding:6px 12px;border-radius:999px}

/* ============ 优势 ============ */
.adv{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.55)}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.adv-item{padding:34px 26px;border-left:1px solid var(--line)}
.adv-item:first-child{border-left:0;padding-left:0}
.adv-item:last-child{padding-right:0}
.adv-item svg{color:var(--brand);margin-bottom:14px}
.adv-item h3{font-size:15px;font-weight:600;letter-spacing:.01em}
.adv-item p{font-size:13.5px;color:var(--muted);line-height:1.75;margin-top:6px;max-width:26ch}

/* ============ 产品 ============ */
.products{background:var(--surface)}
.p-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px 24px}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;display:flex;flex-direction:column;cursor:pointer;text-align:left}
.p-card:hover{transform:translateY(-5px);box-shadow:0 30px 50px -34px rgba(16,22,18,.5);border-color:#d3d1c6}
.p-card:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.p-media{position:relative;display:block;width:100%;aspect-ratio:4/3;overflow:hidden;background:#e9eae5}
.p-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.p-card:hover .p-media img{transform:scale(1.045)}
.p-more{position:absolute;right:14px;bottom:14px;display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);color:var(--ink);font-size:12px;font-weight:600;padding:7px 12px;border-radius:999px;opacity:0;transform:translateY(6px);transition:opacity .3s,transform .3s}
.p-card:hover .p-more,.p-card:focus-visible .p-more{opacity:1;transform:none}
.p-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.p-title{display:flex;align-items:center;justify-content:space-between;gap:12px}
.p-title h3{font-size:17.5px;font-weight:600;letter-spacing:-.01em}
.p-arrow{color:#a9b0aa;transition:transform .3s,color .3s;flex:0 0 auto}
.p-card:hover .p-arrow{color:var(--brand);transform:translateX(4px)}
.p-body>p{font-size:13.8px;line-height:1.8;color:var(--muted);margin-top:8px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:16px}
.tags li{font-size:11.5px;color:#4a534d;background:#f3f4ef;border:1px solid #e8e8e0;padding:3px 9px;border-radius:6px;letter-spacing:.02em}
@media (hover:none){
  .p-more{opacity:1;transform:none}
}

/* ============ 应用领域 ============ */
.apps{background:var(--paper)}
.app-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.app{position:relative;overflow:hidden;border-radius:var(--radius);aspect-ratio:16/10;background:#dfe2dd;margin:0}
.app img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.app:hover img{transform:scale(1.05)}
.app::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,12,10,0) 34%,rgba(8,12,10,.72) 100%)}
.app figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:24px 26px;color:#fff;display:flex;flex-direction:column;gap:5px}
.app-idx{font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums}
.app figcaption h3{font-size:21px;font-weight:600;letter-spacing:-.01em}
.app figcaption p{font-size:13px;color:rgba(255,255,255,.78);line-height:1.65;max-width:36ch}
.app-note{margin-top:22px;font-size:13px;color:var(--muted);letter-spacing:.06em;text-align:center}

/* ============ 服务流程 ============ */
.process{background:var(--surface)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:30px 26px 6px 0;position:relative}
.step::before{content:"";position:absolute;top:-4.5px;left:0;width:9px;height:9px;border-radius:50%;background:var(--surface);border:1.5px solid var(--brand)}
.step-no{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.18em;font-variant-numeric:tabular-nums}
.step h3{font-size:19px;font-weight:600;margin-top:12px;letter-spacing:-.01em}
.step p{font-size:13.8px;color:var(--muted);line-height:1.8;margin-top:9px;max-width:27ch}
.step:not(:last-child){border-right:1px solid var(--line)}

/* ============ 案例 ============ */
.cases{background:var(--paper)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.case{position:relative;display:block;overflow:hidden;border-radius:14px;aspect-ratio:4/3;background:#dfe2dd;padding:0;text-align:left;width:100%}
.case img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.case:hover img{transform:scale(1.05)}
.case::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 46%,rgba(8,12,10,.68) 100%);pointer-events:none}
.case-cap{position:absolute;left:18px;bottom:16px;right:18px;z-index:2;color:#fff;display:flex;flex-direction:column;gap:3px}
.case-cap strong{font-size:14.5px;font-weight:600}
.case-cap em{font-style:normal;font-size:11.5px;color:rgba(255,255,255,.72);letter-spacing:.03em}
.case-cta{background:var(--brand);display:flex;flex-direction:column;justify-content:space-between;padding:26px;color:#fff;aspect-ratio:4/3;transition:background .3s}
.case-cta:hover{background:var(--brand-2)}
.case-cta::after{display:none}
.case-cta span{font-size:11.5px;letter-spacing:.18em;color:rgba(255,255,255,.7)}
.case-cta strong{font-size:clamp(18px,2vw,22px);line-height:1.4;font-weight:600;letter-spacing:-.01em;display:block;max-width:15ch}
.case-cta .cta-arrow{width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.35);display:flex;align-items:center;justify-content:center;align-self:flex-end;transition:transform .3s,background .3s}
.case-cta:hover .cta-arrow{transform:translate(3px,-3px);background:rgba(255,255,255,.12)}

/* ============ 关于 ============ */
.about{background:var(--surface)}
.about-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,64px);align-items:center}
.about h2{font-size:clamp(27px,3.3vw,40px);line-height:1.2;letter-spacing:-.025em;font-weight:600;margin:14px 0 0;text-wrap:balance}
.about-copy>p{color:var(--muted);font-size:15px;line-height:1.9;margin-top:20px}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;margin-top:26px;border-top:1px solid var(--line);padding-top:24px}
.about-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-2)}
.about-list svg{color:var(--brand);flex:0 0 auto;margin-top:4px}
.stats{display:flex;gap:38px;margin-top:30px}
.stat strong{font-size:34px;font-weight:600;letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums;color:var(--ink)}
.stat span{display:block;font-size:12.5px;color:var(--muted);margin-top:7px}
.about-media{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/5;background:#dfe2dd;margin:0}
.about-media img{width:100%;height:100%;object-fit:cover}
.about-tag{position:absolute;left:16px;bottom:16px;right:16px;background:rgba(255,255,255,.93);backdrop-filter:blur(8px);border-radius:12px;padding:13px 15px;font-size:12.5px;color:var(--ink-2);z-index:2}
.about-tag strong{display:block;font-size:13.5px;color:var(--ink);margin-bottom:2px}

/* ============ FAQ ============ */
.faq{background:var(--paper)}
.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,5vw,72px);align-items:start}
.faq-intro{position:sticky;top:104px}
.faq-intro h2{font-size:clamp(27px,3.3vw,38px);line-height:1.2;letter-spacing:-.025em;font-weight:600;margin-top:14px;text-wrap:balance}
.faq-intro p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:30ch}
.faq-intro .btn{margin-top:24px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:21px 0;font-size:15.5px;font-weight:600;cursor:pointer;list-style:none;letter-spacing:-.005em}
.faq-item summary::-webkit-details-marker{display:none}
.chev{position:relative;width:16px;height:16px;flex:0 0 auto}
.chev::before,.chev::after{content:"";position:absolute;background:var(--ink);top:50%;left:1px;width:14px;height:1.4px;margin-top:-.7px;transition:transform .3s var(--ease)}
.chev::after{transform:rotate(90deg)}
.faq-item[open] .chev::after{transform:rotate(0)}
.faq-item p{color:var(--muted);font-size:14.3px;line-height:1.85;padding-bottom:22px;max-width:58ch}

/* ============ 联系 ============ */
.contact{background:var(--dark);color:#eef2ee;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0;background:radial-gradient(55% 70% at 12% 0%,rgba(168,13,38,.34),transparent 70%),radial-gradient(40% 50% at 92% 100%,rgba(200,16,46,.16),transparent 70%)}
.contact .wrap{position:relative;z-index:1}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,72px);align-items:center}
.contact h2{font-size:clamp(28px,3.6vw,44px);line-height:1.18;letter-spacing:-.028em;font-weight:600;margin-top:14px;text-wrap:balance}
.contact-copy>p{color:rgba(238,242,238,.66);font-size:14.5px;margin-top:18px;max-width:34ch}
.sec-index.light{color:#f0a6b0}
.contact-list{display:grid;gap:16px;margin-top:34px;border-top:1px solid rgba(255,255,255,.12);padding-top:26px}
.contact-list li{display:grid;grid-template-columns:62px 1fr;gap:12px;align-items:baseline}
.contact-list span{font-size:11.5px;letter-spacing:.14em;color:rgba(238,242,238,.45)}
.contact-list a,.contact-list p{font-size:16px;font-weight:500;color:#fff;font-variant-numeric:tabular-nums}
.contact-list a:hover{color:#f0a6b0}
.form-card{background:#fff;color:var(--ink);border-radius:20px;padding:clamp(22px,2.6vw,32px);box-shadow:0 40px 80px -40px rgba(0,0,0,.7)}
.form-card h3{font-size:17px;font-weight:600}
.form-card>p{font-size:12.5px;color:var(--muted);margin-top:5px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:6px;margin-top:14px}
.field label{font-size:12px;color:var(--muted);letter-spacing:.03em}
.field input,.field select,.field textarea{width:100%;height:46px;border:1px solid #dddcd3;border-radius:10px;padding:0 13px;font:inherit;font-size:14px;color:var(--ink);background:#faf9f6;transition:border-color .2s,box-shadow .2s,background .2s}
.field textarea{height:92px;padding:12px 13px;resize:vertical;line-height:1.6}
.field input::placeholder,.field textarea::placeholder{color:#a4a8a2}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(200,16,46,.12)}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#bd5b45;box-shadow:0 0 0 3px rgba(189,91,69,.1)}
.err{font-size:11.5px;color:#bd5b45;min-height:0}
.form-card .btn{width:100%;margin-top:18px}
.form-note{font-size:11.5px;color:#8c918b;line-height:1.7;margin-top:12px}
.form-note a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
.form-status{margin-top:12px;font-size:12.5px;color:var(--brand);background:var(--brand-soft);border-radius:8px;padding:10px 12px;line-height:1.65}
.form-status[hidden]{display:none}

/* ============ 页脚 ============ */
.footer{background:#0b0d0c;color:#9aa59e;padding:64px 0 26px;font-size:13.5px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:46px}
.footer .brand img{height:46px}
.footer-slogan{color:#d8ddd9;font-size:13.5px;margin-top:18px;letter-spacing:.02em}
.footer-about{max-width:32ch;margin-top:10px;line-height:1.8;color:#858f89}
.footer h4{font-size:12px;letter-spacing:.16em;color:#6f7a73;font-weight:600;margin-bottom:16px}
.footer li+li{margin-top:10px}
.footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#6f7a73}

/* ============ 大图 ============ */
.lightbox{position:fixed;inset:0;z-index:120;background:rgba(8,12,10,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:min(1100px,92vw);max-height:80vh;object-fit:contain;border-radius:8px}
.lb-cap{color:rgba(255,255,255,.75);font-size:13px;margin-top:16px}
.lb-close{position:absolute;top:18px;right:22px;width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.24);color:#fff;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .2s}
.lb-close:hover{background:rgba(255,255,255,.12)}
body.no-scroll{overflow:hidden}

/* ============ 产品详情弹窗 ============ */
.pdlg{width:min(1060px,94vw);max-height:92vh;padding:0;border:0;border-radius:20px;background:#fff;color:var(--ink);overflow:hidden;box-shadow:0 60px 120px -40px rgba(0,0,0,.6)}
.pdlg::backdrop{background:rgba(8,10,9,.66);backdrop-filter:blur(6px)}
.pdlg-shell{display:grid;grid-template-columns:1.06fr .94fr;max-height:92vh;position:relative}
.pdlg-close{position:absolute;top:14px;right:14px;z-index:4;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.94);border:1px solid rgba(0,0,0,.06);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.14);transition:background .2s}
.pdlg-close:hover{background:#fff}
.pdlg-gallery{background:#f2f1ec;padding:26px;display:flex;flex-direction:column;gap:10px;justify-content:center}
.pdlg-main{border-radius:12px;overflow:hidden;background:#e4e3dc;aspect-ratio:4/3}
.pdlg-main img{width:100%;height:100%;object-fit:cover}
.pdlg-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.pdlg-thumbs button{padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;background:#ddd;opacity:.7;transition:opacity .2s,border-color .2s;aspect-ratio:4/3}
.pdlg-thumbs button img{width:100%;height:100%;object-fit:cover}
.pdlg-thumbs button:hover{opacity:1}
.pdlg-thumbs button.active{border-color:var(--brand);opacity:1}
.pdlg-content{padding:32px 30px 24px;overflow:auto;max-height:92vh;display:flex;flex-direction:column}
.pdlg-kicker{font-size:11px;letter-spacing:.16em;color:var(--brand);font-weight:600}
.pdlg-content h3{font-size:25px;line-height:1.25;letter-spacing:-.02em;font-weight:600;margin-top:8px;padding-right:34px}
.pdlg-desc{color:var(--muted);font-size:13.8px;line-height:1.85;margin-top:11px}
.pdlg-specs{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.pdlg-specs-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;letter-spacing:.08em;color:var(--muted)}
.pdlg-specs-head b{font-size:12px;font-weight:600;color:var(--ink);letter-spacing:.04em}
.pdlg-specs dl{display:grid;grid-template-columns:66px 1fr;gap:9px 14px;margin:12px 0 0;font-size:13px}
.pdlg-specs dt{color:var(--muted)}
.pdlg-specs dd{margin:0;color:var(--ink-2);line-height:1.6}
.pdlg-note{font-size:10.5px;color:#9a9e99;margin-top:11px;line-height:1.6}
.pdlg-use{display:flex;gap:8px;align-items:baseline;margin-top:14px;font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.pdlg-use p{font-size:12.5px;color:var(--ink-2);margin:0;letter-spacing:0}
.pdlg-actions{display:flex;gap:9px;margin-top:20px}
.pdlg-actions .btn{height:44px;font-size:13.5px}
.pdlg-actions .btn-primary{flex:1}
.pdlg-actions .btn-ghost{padding:0 16px;background:#fff}
.pdlg-nav{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.pdlg-nav button{font-size:12.5px;color:var(--muted);padding:6px 0;display:inline-flex;align-items:center;gap:5px;transition:color .2s}
.pdlg-nav button:hover{color:var(--brand)}
.pdlg-nav span{font-size:11px;color:#a3a7a2;letter-spacing:.12em;font-variant-numeric:tabular-nums}

/* ============ 动画 ============ */
html.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0ms)}
html.js .reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .p-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:34px}
  .footer-grid .footer-contact{grid-column:1/-1}
}
@media (max-width:900px){
  .header-inner{height:66px}
  .brand img{height:34px}
  .brand-tag{display:none}
  .nav{position:fixed;left:0;right:0;top:66px;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 24px 26px;display:none;box-shadow:0 24px 40px -30px rgba(0,0,0,.4)}
  .nav.open{display:block}
  .nav ul{flex-direction:column;align-items:stretch;gap:0}
  .nav li{border-bottom:1px solid var(--line)}
  .nav a{display:block;padding:15px 2px;font-size:15px}
  .nav a::after{display:none}
  .burger{display:flex;order:3}
  .header-tel{display:none}
  .header .btn-sm{display:none}
  .hero{padding-top:106px}
  .hero-media{aspect-ratio:16/10}
  .adv-grid{grid-template-columns:1fr 1fr}
  .adv-item{padding:26px 22px;border-left:1px solid var(--line);border-top:1px solid var(--line)}
  .adv-item:nth-child(odd){border-left:0;padding-left:0}
  .adv-item:nth-child(-n+2){border-top:0;padding-top:30px}
  .sec-head{grid-template-columns:1fr;gap:14px;align-items:start}
  .sec-lead{justify-self:start;max-width:52ch}
  .steps{grid-template-columns:1fr 1fr;border-top:0}
  .step{padding:26px 22px 26px 0;border-top:1px solid var(--line)}
  .step:nth-child(2n){border-right:0;padding-right:0}
  .step:nth-child(2n-1){padding-right:26px;border-right:1px solid var(--line)}
  .about-grid{grid-template-columns:1fr;gap:34px}
  .about-media{aspect-ratio:16/10;order:2}
  .faq-grid{grid-template-columns:1fr;gap:30px}
  .faq-intro{position:static}
  .contact-grid{grid-template-columns:1fr;gap:34px}
  .pdlg{max-height:92vh;overflow:auto}
  .pdlg-shell{grid-template-columns:1fr;max-height:none}
  .pdlg-gallery{padding:14px}
  .pdlg-content{padding:22px 20px 20px;max-height:none;overflow:visible}
  .pdlg-nav{margin-top:20px}
}
@media (max-width:720px){
  .wrap{padding:0 20px}
  .hero-media{aspect-ratio:4/3;border-radius:16px}
  .shot-tag{top:14px;left:14px;font-size:11px;padding:6px 10px}
  .hero-chips{left:14px;bottom:14px;right:14px;gap:6px}
  .hero-chips li{font-size:11px;padding:5px 9px}
  .p-grid{grid-template-columns:1fr;gap:18px}
  .app-grid{grid-template-columns:1fr}
  .app{aspect-ratio:4/3}
  .case-grid{grid-template-columns:1fr 1fr}
  .case,.case-cta{aspect-ratio:1/1}
  .case-cta strong{font-size:17px}
  .about-list{grid-template-columns:1fr}
  .stats{gap:26px}
  .stat strong{font-size:28px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column;gap:8px}
  .contact-list li{grid-template-columns:56px 1fr}
}
@media (max-width:420px){
  .hero-actions .btn{width:100%}
  .case-grid{grid-template-columns:1fr}
  .case,.case-cta{aspect-ratio:4/3}
  .pdlg-actions{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html.js .reveal{opacity:1;transform:none}
}

/* ============ 子页面共用 ============ */
.page-hero{padding:clamp(112px,14vh,150px) 0 clamp(34px,4vw,50px);position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;inset:-40% -10% auto;height:90%;background:radial-gradient(50% 60% at 20% 0%,rgba(200,16,46,.08),transparent 70%);pointer-events:none}
.page-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(20,23,21,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,23,21,.045) 1px,transparent 1px);background-size:68px 68px;-webkit-mask-image:radial-gradient(60% 80% at 15% 0%,#000,transparent 75%);mask-image:radial-gradient(60% 80% at 15% 0%,#000,transparent 75%);pointer-events:none}
.page-hero .wrap{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);letter-spacing:.04em}
.crumb a:hover{color:var(--brand)}
.crumb i{width:14px;height:1px;background:#c9c7bd;display:block}
.page-hero h1{font-size:clamp(32px,4.4vw,56px);line-height:1.1;letter-spacing:-.03em;font-weight:600;margin-top:18px;text-wrap:balance}
.page-hero p{color:var(--muted);font-size:clamp(14.5px,1.5vw,16.5px);line-height:1.85;max-width:58ch;margin-top:16px}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.anchor-nav a{font-size:12.5px;color:var(--ink-2);border:1px solid var(--line);background:rgba(255,255,255,.7);padding:7px 14px;border-radius:999px;transition:.2s}
.anchor-nav a:hover{color:var(--brand);border-color:var(--brand);background:#fff}

.block{padding:clamp(52px,6.5vw,84px) 0;border-top:1px solid var(--line)}
.block:first-of-type{border-top:0}
.block-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:32px;align-items:end;margin-bottom:clamp(28px,3.5vw,44px)}
.block-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.2;letter-spacing:-.025em;font-weight:600;margin-top:10px;text-wrap:balance}
.block-head p{color:var(--muted);font-size:14.5px;line-height:1.85;justify-self:end;max-width:42ch}

.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pillar{border:1px solid var(--line);border-radius:16px;padding:26px;background:#fff;transition:transform .3s var(--ease),box-shadow .3s}
.pillar:hover{transform:translateY(-3px);box-shadow:0 24px 40px -34px rgba(16,22,18,.5)}
.pillar b{display:block;font-size:12px;letter-spacing:.18em;color:var(--brand);font-weight:600}
.pillar h3{font-size:18px;margin-top:10px;font-weight:600;letter-spacing:-.01em}
.pillar p{font-size:13.5px;color:var(--muted);line-height:1.8;margin-top:8px}

.adv-grid--plain{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.adv-grid--plain .adv-item{padding:28px 24px;border-top:0}
.adv-grid--plain .adv-item+.adv-item{border-left:1px solid var(--line)}
.adv-grid--plain .adv-item:first-child{padding-left:24px}

.cta-band{background:var(--brand);color:#fff;padding:clamp(46px,5.5vw,68px) 0;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(50% 120% at 90% 0%,rgba(255,255,255,.16),transparent 60%);pointer-events:none}
.cta-band .wrap{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(24px,3vw,36px);line-height:1.25;letter-spacing:-.02em;font-weight:600;text-wrap:balance}
.cta-band p{color:rgba(255,255,255,.8);font-size:14px;margin-top:8px}
.cta-band .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.cta-band .btn{background:#fff;color:var(--brand);border:1px solid #fff}
.cta-band .btn:hover{background:#f6f5f1}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

.teaser-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(24px,3vw,36px);border-top:1px solid var(--line);padding-top:26px}
.teaser-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.2;letter-spacing:-.025em;font-weight:600;margin-top:10px;text-wrap:balance}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);white-space:nowrap;padding-bottom:2px}
.link-more:hover{color:var(--brand-2)}
.link-more svg{transition:transform .3s}
.link-more:hover svg{transform:translateX(3px)}

a.app{display:block}
.match-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.match{border:1px solid var(--line);border-radius:14px;background:#fff;padding:22px 24px}
.match h3{font-size:16.5px;font-weight:600}
.match p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.8}
.match .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.match .chips a{font-size:11.5px;color:var(--ink-2);border:1px solid var(--line);background:#faf9f6;padding:4px 9px;border-radius:6px}
.match .chips a:hover{border-color:var(--brand);color:var(--brand);background:#fff}

.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.filter{font-size:13px;color:var(--ink-2);border:1px solid var(--line);background:#fff;padding:8px 16px;border-radius:999px;transition:.2s}
.filter:hover{border-color:var(--ink)}
.filter.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.case-item[hidden]{display:none!important}

@media (max-width:900px){
  .page-hero{padding-top:100px}
  .block-head{grid-template-columns:1fr;gap:12px}
  .block-head p{justify-self:start}
  .pillars{grid-template-columns:1fr}
  .match-grid{grid-template-columns:1fr}
  .cta-band .wrap{flex-direction:column;align-items:flex-start}
  .adv-grid--plain .adv-item{padding:24px 20px}
}
@media (max-width:720px){
  .teaser-head{flex-direction:column;align-items:flex-start;gap:12px}
  .adv-grid--plain{border-radius:14px}
  .adv-grid--plain .adv-item+.adv-item{border-left:0;border-top:1px solid var(--line)}
}

/* 首页应用入口使用 span 结构 */
.app .app-cap{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:24px 26px;color:#fff;display:flex;flex-direction:column;gap:5px}
.app .app-cap h3{font-size:21px;font-weight:600;letter-spacing:-.01em}
.app .app-cap p{font-size:13px;color:rgba(255,255,255,.78);line-height:1.65;max-width:36ch}
@media (max-width:720px){.app .app-cap{padding:20px 20px}}

/* 七类产品 + 定制卡 */
.p-grid{grid-template-columns:repeat(4,1fr)}
.p-grid .p-title h3{font-size:16.5px;line-height:1.4}
.p-card--cta{background:var(--brand);border-color:var(--brand);color:#fff;padding:26px;justify-content:center}
.p-card--cta:hover{background:var(--brand-2);border-color:var(--brand-2)}
.p-card--cta:focus-visible{outline-color:#fff;outline-offset:-4px}
.p-card--cta .p-cta-kicker{font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.72);font-weight:600}
.p-cta-inner{display:flex;flex-direction:column;justify-content:center;gap:10px;height:100%}
.p-card--cta h3{font-size:21px;line-height:1.35;font-weight:600;letter-spacing:-.01em}
.p-card--cta p{font-size:13px;line-height:1.75;color:rgba(255,255,255,.78)}
.p-cta-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;margin-top:4px}
.p-cta-link svg{transition:transform .3s}
.p-card--cta:hover .p-cta-link svg{transform:translateX(3px)}
@media (max-width:1080px){.p-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.p-grid{grid-template-columns:1fr}}

/* 关于页：部分服务项目 */
.project-list{margin-top:28px;border-top:1px solid var(--line);padding-top:22px}
.project-list b{font-size:11.5px;letter-spacing:.14em;color:var(--muted);font-weight:600}
.project-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.project-chips li{font-size:12px;color:var(--ink-2);background:#f6f5f1;border:1px solid var(--line);padding:4px 10px;border-radius:6px}
.project-slogan{margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);letter-spacing:.02em}

/* ============ 项目相册卡片 ============ */
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.project-card{position:relative;display:block;width:100%;text-align:left;padding:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;cursor:pointer}
.project-card:hover{transform:translateY(-4px);box-shadow:0 28px 46px -34px rgba(16,22,18,.5);border-color:#d3d1c6}
.project-card[hidden]{display:none!important}
.project-cover{position:relative;aspect-ratio:4/3;overflow:hidden;background:#e4e3dc}
.project-cover img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.project-card:hover .project-cover img{transform:scale(1.04)}
.project-count{position:absolute;right:12px;top:12px;font-size:11px;letter-spacing:.06em;color:#fff;background:rgba(12,16,13,.62);backdrop-filter:blur(6px);padding:5px 10px;border-radius:999px}
.project-body{padding:16px 18px 18px;position:relative}
.project-body h3{font-size:16.5px;font-weight:600;letter-spacing:-.01em;line-height:1.4;padding-right:28px}
.project-body p{font-size:12.5px;color:var(--muted);margin-top:4px}
.project-arrow{position:absolute;right:16px;bottom:18px;color:#a9b0aa;transition:transform .3s,color .3s}
.project-card:hover .project-arrow{color:var(--brand);transform:translateX(3px)}

/* 灯箱导航 */
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;transition:background .2s;z-index:2}
.lb-nav:hover{background:rgba(255,255,255,.18)}
.lb-nav[hidden]{display:none}
.lb-prev{left:22px}
.lb-next{right:22px}
.lb-count{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-size:11.5px;letter-spacing:.16em;color:rgba(255,255,255,.55);font-variant-numeric:tabular-nums}
.lb-count[hidden]{display:none}

/* 企业文化 */
.culture-top{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.culture-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:26px 28px}
.culture-card b{font-size:11.5px;letter-spacing:.16em;color:var(--brand)}
.culture-card p{font-size:14.5px;line-height:1.9;color:var(--ink-2);margin-top:10px}
.values{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);margin-top:30px}
.value{padding:24px 22px 0 0;border-right:1px solid var(--line)}
.value:last-child{border-right:0}
.value span{font-size:12px;letter-spacing:.16em;color:var(--brand);font-variant-numeric:tabular-nums}
.value h3{font-size:17px;font-weight:600;margin-top:10px}
.value p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:8px;padding-bottom:22px;max-width:26ch}
.culture-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px;background:var(--dark);color:#fff;border-radius:16px;padding:26px 28px}
.culture-strip b{font-size:11.5px;letter-spacing:.16em;color:#f0a6b0}
.culture-strip p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.82);margin-top:8px}

/* 深化设计 */
.design-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.design-grid figure{margin:0;border:1px solid var(--line);background:#fff;border-radius:14px;overflow:hidden}
.design-grid img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#faf9f6;padding:12px}
.design-grid figcaption{padding:12px 14px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);letter-spacing:.02em}

@media (max-width:1080px){.project-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:900px){
  .culture-top{grid-template-columns:1fr}
  .values{grid-template-columns:1fr 1fr}
  .value:nth-child(2n){border-right:0}
  .value:nth-child(-n+2){}
  .culture-strip{grid-template-columns:1fr}
  .design-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .project-grid{grid-template-columns:1fr}
  .values{grid-template-columns:1fr}
  .value{border-right:0;border-top:1px solid var(--line);padding-top:18px}
  .value:first-child{border-top:0}
}

.project-name{display:block;font-size:16.5px;font-weight:600;letter-spacing:-.01em;line-height:1.4;padding-right:28px}
.project-sub{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}

.project-cover{display:block}
.project-body{display:block}

/* 六类产品：三列 */
.p-grid{grid-template-columns:repeat(3,1fr)}
@media (max-width:1080px){.p-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.p-grid{grid-template-columns:1fr}}

/* ================= 官网风格覆写 ================= */
body{background:#fff}
.topbar{background:#1b1d1c;color:rgba(255,255,255,.62);font-size:12px;letter-spacing:.02em}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:34px;gap:20px}
.topbar-links{display:flex;gap:24px}
.topbar a{color:rgba(255,255,255,.62)}
.topbar a:hover{color:#fff}
.header{position:relative;background:#fff;border-bottom:1px solid #e8e6de;box-shadow:none}
.header.scrolled{background:#fff;border-bottom-color:#e8e6de}
.header-inner{height:78px;gap:24px}
.brand img{height:38px}
.brand-tag,.header-tel,.header .btn-sm{display:none}
.nav ul{gap:24px}
.nav a{font-size:13.5px;color:#2d312e;padding:8px 0}
.nav a::after{height:2px;background:var(--brand)}
.page-hero{padding:44px 0 30px;border-bottom:1px solid #e8e6de}
.page-hero::before,.page-hero::after{display:none}
.page-hero h1{font-size:clamp(28px,3.2vw,40px);margin-top:14px;letter-spacing:-.02em}
.page-hero p{font-size:14.5px;margin-top:12px;line-height:1.9}
.crumb{font-size:12px;color:#8b908b}

.btn{border-radius:3px;height:44px;font-size:14px;box-shadow:none!important}
.btn-primary{background:var(--brand)}
.btn-primary:hover{transform:none;background:var(--brand-2)}
.btn-ghost{border-color:#d5d3c9;background:#fff}
.btn-ghost:hover{transform:none;border-color:#15181a}

.sec{padding:58px 0}
.sec-en{display:block;font-size:10.5px;letter-spacing:.22em;color:#a0a49f;text-transform:uppercase;margin-bottom:8px}
.sec-index{font-size:11px;letter-spacing:.16em;color:#a0a49f}
.sec-head{border-top:1px solid #e8e6de;padding-top:20px;margin-bottom:34px}
.sec-head h2{font-size:clamp(23px,2.5vw,31px);letter-spacing:-.015em;margin-top:8px;font-weight:600}
.sec-lead{font-size:13.5px;line-height:1.9;color:#6b716d}

/* Banner */
.banner{padding:clamp(34px,5vw,58px) 0;border-bottom:1px solid #e8e6de;background:#faf9f6}
.banner-grid{display:grid;grid-template-columns:1fr 1.02fr;gap:clamp(32px,5vw,64px);align-items:center}
.banner-kicker{font-size:11.5px;letter-spacing:.2em;color:var(--brand)}
.banner h1{font-size:clamp(29px,3.5vw,44px);line-height:1.28;letter-spacing:-.025em;font-weight:600;margin:16px 0 0;color:#141715}
.banner-lead{font-size:14.5px;line-height:1.95;color:#636963;margin-top:18px;max-width:46ch}
.banner-actions{display:flex;gap:28px;margin-top:28px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:#15181a;border-bottom:1px solid #d3d1c7;padding-bottom:3px;transition:.2s}
.text-link:hover{color:var(--brand);border-color:var(--brand)}
.banner-media{margin:0;border:1px solid #e2e0d7;background:#eee}
.banner-media img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}

/* 产品表格式 */
.p-grid{grid-template-columns:repeat(3,1fr);gap:1px;background:#e8e6de;border:1px solid #e8e6de}
.p-card{border:0;border-radius:0;background:#fff;box-shadow:none;transform:none}
.p-card:hover{transform:none;box-shadow:none;border-color:transparent}
.p-card:hover .p-media img{transform:none}
.p-media{aspect-ratio:4/3}
.p-body{padding:18px 20px 20px}
.p-title h3{font-size:15.5px}
.p-arrow,.p-more{display:none}
.p-body>p{font-size:12.8px;line-height:1.8;color:#6b716d;margin-top:6px}
.tags{margin-top:12px;padding-top:0}
.tags li{font-size:10.8px;background:#f7f7f3;border-color:#ecece5;padding:3px 8px;border-radius:2px}
.p-card:focus-visible{outline-color:var(--brand);outline-offset:-3px}

/* 首页关于 */
.about-home .about-grid{grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px)}
.about-home .about-copy>p{font-size:14px;line-height:2}
.about-home .about-media{border:1px solid #e8e6de}
.about-home .about-tag{border-radius:0;background:#fff;border-top:1px solid #e8e6de;left:0;right:0;bottom:0}
.about-home .stats{margin-top:26px}
.about-home .stat strong{font-size:28px}

/* 应用领域（纯文字） */
.app-list{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #e8e6de}
.app-item{display:block;padding:26px 24px 26px 0;border-right:1px solid #e8e6de;transition:.2s}
.app-item:last-child{border-right:0}
.app-item span{font-size:11.5px;letter-spacing:.12em;color:#a0a49f}
.app-item h3{font-size:16px;font-weight:600;margin-top:10px;color:#15181a}
.app-item p{font-size:12.6px;line-height:1.85;color:#6b716d;margin-top:8px;max-width:26ch}
.app-item:hover h3{color:var(--brand)}

/* 首页案例 */
.home-cases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.home-case{display:block;border:1px solid #e8e6de;background:#fff}
.home-case img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.home-case .hc-body{padding:14px 16px;border-top:1px solid #f0eee7}
.home-case h3{font-size:14.5px;font-weight:600}
.home-case p{font-size:12px;color:#8b908b;margin-top:3px}

/* 联系条 */
.contact-strip{background:#f6f6f2;border-top:1px solid #e8e6de;padding:46px 0}
.contact-strip .wrap{display:grid;grid-template-columns:1.1fr 1.1fr auto;gap:36px;align-items:center}
.contact-strip h2{font-size:25px;font-weight:600;letter-spacing:-.01em;margin-top:8px}
.contact-strip .cs-text{font-size:13px;color:#6b716d;margin-top:8px}
.contact-mini p{font-size:13px;color:#3b403c;line-height:2}

/* cta-band 降噪 */
.cta-band{background:#f6f6f2;color:#15181a;padding:46px 0;border-top:1px solid #e8e6de}
.cta-band::after{display:none}
.cta-band h2{font-size:25px;color:#15181a}
.cta-band p{color:#6b716d;font-size:13.5px}
.cta-band .btn{background:var(--brand);color:#fff;border-color:var(--brand);border-radius:3px}
.cta-band .btn-ghost{background:transparent;color:#15181a;border-color:#cfcdc3}

/* 卡片轻量化 */
.case,.project-card,.app,.about-media{border-radius:0}
.case:hover img,.project-card:hover .project-cover img{transform:none}
.project-card{border-radius:0;box-shadow:none}
.project-card:hover{transform:none;box-shadow:none;border-color:#cfcdc3}
.case-cta{border-radius:0}
.footer{background:#1b1d1c}

@media (max-width:900px){
  .topbar{display:none}
  .header{position:relative}
  .header-inner{height:64px}
  .nav{position:absolute;top:100%;left:0;right:0;background:#fff;padding:8px 24px 22px;border-bottom:1px solid #e8e6de;box-shadow:0 18px 30px -24px rgba(0,0,0,.35)}
  .nav a{padding:13px 2px}
  .banner-grid{grid-template-columns:1fr}
  .banner-media{order:-1}
  .app-list{grid-template-columns:1fr 1fr}
  .app-item:nth-child(2n){border-right:0}
  .app-item{border-top:1px solid #e8e6de;padding:20px 16px 20px 0}
  .app-item:nth-child(-n+2){border-top:0}
  .home-cases{grid-template-columns:1fr}
  .contact-strip .wrap{grid-template-columns:1fr;gap:20px}
  .p-grid{grid-template-columns:1fr 1fr;gap:1px}
}
@media (max-width:600px){
  .p-grid{grid-template-columns:1fr}
  .app-list{grid-template-columns:1fr}
  .app-item{border-right:0}
}

.about-home h2{font-size:clamp(23px,2.5vw,31px);line-height:1.3;letter-spacing:-.015em;font-weight:600;margin:8px 0 0}
.about-home .about-copy>p{color:#6b716d;font-size:14px;line-height:2;margin-top:16px}
.about-home .about-list{margin-top:22px;padding-top:20px}

/* 联系区与锚点：官网浅色 */
.contact{background:#f7f7f4;color:#15181a;border-top:1px solid #e8e6de}
.contact::before{display:none}
.contact h2{color:#15181a}
.contact-copy>p{color:#6b716d}
.sec-index.light{color:#a0a49f}
.contact-list{border-top-color:#e0ded5}
.contact-list span{color:#8b908b}
.contact-list a,.contact-list p{color:#15181a}
.contact-list a:hover{color:var(--brand)}
.form-card{box-shadow:none;border:1px solid #e4e2d9;border-radius:2px}
.anchor-nav a{border-radius:2px;background:#fff;border-color:#e2e0d7;color:#4a4f4a}
.anchor-nav a:hover{background:#fff}

/* 首页精简 */
.sec{padding:42px 0}
.sec-head{padding-top:16px;margin-bottom:24px}
.banner{padding:30px 0}
.banner-media img{aspect-ratio:16/9}
.banner h1{font-size:clamp(25px,2.8vw,34px)}
.banner-kicker{font-size:10.5px}
.banner-lead{font-size:13.2px;line-height:1.85;margin-top:14px}
.banner-actions{margin-top:20px}
.p-grid{grid-template-columns:repeat(6,1fr)}
.p-body{padding:12px 14px 14px}
.p-body>p,.p-grid .tags{display:none}
.p-title h3{font-size:13.5px;line-height:1.5}
.p-media{aspect-ratio:4/3}
.about-home .about-list{display:none}
.about-home .about-copy>p{font-size:13.2px;line-height:1.9;margin-top:14px}
.about-home h2{font-size:24px}
.about-home .stats{margin-top:20px}
.about-home .stat strong{font-size:24px}
.about-home .stat span{font-size:11.5px;margin-top:5px}
.home-case img{aspect-ratio:16/10}
.contact-strip{padding:34px 0}
.contact-strip h2{font-size:22px}
.home-cases{gap:16px}
@media (max-width:1080px){.p-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:720px){.p-grid{grid-template-columns:repeat(2,1fr)}.sec{padding:34px 0}}

.about-home .about-media{aspect-ratio:4/3}
.about-home .about-grid{align-items:center}

/* 产品中心独立页 */
.page-products .p-grid{grid-template-columns:repeat(3,1fr)}
.page-products .p-body{padding:18px 20px 20px}
.page-products .p-body>p{display:block;font-size:12.8px;line-height:1.8;margin-top:6px}
.page-products .p-grid .tags{display:flex}
.page-products .p-title h3{font-size:15.5px}
.page-products .p-more{display:none}
.page-products .p-grid{gap:1px;background:#e8e6de;border:1px solid #e8e6de}
.page-products .p-card{background:#fff}
@media (max-width:1080px){.page-products .p-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.page-products .p-grid{grid-template-columns:1fr}}

/* address map link */
.addr-link{color:inherit;text-decoration:none;border-bottom:1px dotted currentColor;transition:color .2s ease,border-color .2s ease}
.addr-link:hover,.addr-link:focus-visible{color:var(--brand);border-bottom-color:var(--brand)}
.addr-link::after{content:"\2197";font-size:.85em;margin-left:3px;opacity:.55}