*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --bg:#f7f7f3;
  --paper:#ffffff;
  --ink:#151515;
  --muted:#626262;
  --soft:#efeee7;
  --soft2:#e7e4da;
  --line:#dedbd0;
  --dark:#151515;
  --shadow:0 18px 55px rgba(20,20,20,.08);
  --shadow-soft:0 8px 26px rgba(20,20,20,.05);
  --radius:30px;
  --container:1280px;
}
html,body{margin:0;padding:0}
body{
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--ink);
  background:
    linear-gradient(90deg, rgba(0,0,0,.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(0,0,0,.035) 1px, transparent 1px),
    var(--bg);
  background-size:72px 72px;
  line-height:1.72;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block;height:auto}
button{font:inherit}
.container{width:min(var(--container), calc(100% - 34px));margin:0 auto}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#777;font-weight:900}
.section-heading{max-width:780px;margin:0 0 28px}
.section-heading.center{text-align:center;margin-inline:auto}
.section-heading h2,.atelier-copy h1,.portal-copy h1{font-size:clamp(42px,6vw,82px);line-height:.92;letter-spacing:-.06em;margin:14px 0}
.section-heading p,.atelier-copy p,.gateway-card p,.gallery-copy p,.selection-copy p,.selection-cards p,.download-copy p,.download-steps p,.security-copy p,.security-list span,.support-copy p,.support-card p,.faq-list p,.footer-brand p,.portal-copy p,.portal-visual p,.portal-link-card p{color:var(--muted);margin:0}

.site-header{position:sticky;top:0;z-index:90;background:rgba(247,247,243,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,0,0,.06)}
.nav-frame{display:flex;align-items:center;gap:20px;padding:16px 0;position:relative}
.brand{display:flex;align-items:center;gap:14px;min-width:max-content}
.brand-icon{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:#151515;color:#fff;font-weight:900;font-size:22px}
.brand span:not(.brand-icon){display:flex;flex-direction:column;gap:2px}
.brand strong{font-size:18px;line-height:1}
.brand em{font-style:normal;color:#777;font-size:12px;letter-spacing:.1em}
.site-nav{display:flex;gap:20px;margin-left:auto}
.site-nav a{font-size:14px;font-weight:800;color:#333}
.nav-actions{display:flex;gap:10px}
.nav-toggle{display:none;margin-left:auto;border:0;background:transparent;padding:0}
.nav-toggle i{display:block;width:24px;height:2px;background:#151515;margin:5px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:999px;border:1px solid transparent;font-weight:900;cursor:pointer;transition:.22s ease}
.btn:hover{transform:translateY(-1px)}
.btn-dark{background:#151515;color:#fff}
.btn-light{background:#fff;border-color:#d6d3ca;color:#151515}
.btn-outline,.btn-plain{background:rgba(255,255,255,.62);border-color:#d7d3c9;color:#151515}
.btn-ivory{background:#f8f3e7;color:#151515}

.hero-atelier{padding:48px 0 32px}
.atelier-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:32px;align-items:center}
.atelier-copy{padding-right:12px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 0}
.atelier-stage{position:relative;min-height:650px;border-radius:44px;background:radial-gradient(circle at 50% 36%,#fff 0,#f0eee6 32%,#e5e2d9 100%);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.stage-ring{position:absolute;inset:80px;border-radius:50%;border:1px solid rgba(0,0,0,.08)}
.stage-ring:before,.stage-ring:after{content:"";position:absolute;inset:70px;border-radius:50%;border:1px solid rgba(0,0,0,.06)}
.stage-ring:after{inset:140px}
.stage-product{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.stage-product img{max-height:530px;filter:drop-shadow(0 32px 46px rgba(0,0,0,.16))}
.stage-tile{position:absolute;background:rgba(255,255,255,.82);border:1px solid rgba(0,0,0,.08);border-radius:22px;box-shadow:var(--shadow-soft);padding:14px 16px;backdrop-filter:blur(10px)}
.stage-tile span{display:block;color:#777;font-size:12px}
.stage-tile strong{display:block;margin-top:5px;font-size:17px}
.tile-a{left:30px;top:34px}.tile-b{right:30px;bottom:34px}.tile-c{right:30px;top:34px}
.hero-rail{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}
.hero-rail article{padding:18px;background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-soft)}
.hero-rail small{font-weight:900;color:#777}.hero-rail strong{display:block;margin-top:8px}.hero-rail span{display:block;margin-top:6px;color:var(--muted);font-size:14px;word-break:break-word}

.gateway,.products-showcase,.selection-map,.compare-zone,.download-panel,.security-zone,.support-zone,.site-showcase,.faq-zone,.portal-links,.portal-service{padding:36px 0}
.gateway-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.gateway-card{min-height:260px;padding:26px;border-radius:32px;background:rgba(255,255,255,.78);border:1px solid var(--line);box-shadow:var(--shadow-soft);display:flex;flex-direction:column;justify-content:space-between;text-align:left}
.gateway-card.large{grid-row:span 2;background:#151515;color:#fff}
.gateway-card.large p{color:#c9c9c9}
.gateway-card small,.portal-link-card span{font-size:12px;font-weight:900;letter-spacing:.15em;text-transform:uppercase;color:#777}
.gateway-card.large small{color:#c9c9c9}
.gateway-card h3,.gallery-copy h3,.selection-cards h3,.download-steps h3,.support-card h3,.portal-visual h2,.portal-link-card h3{font-size:34px;line-height:1.02;margin:14px 0 10px;letter-spacing:-.04em}
.gateway-card b{word-break:break-all}

.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery-card{background:#fff;border:1px solid var(--line);border-radius:32px;overflow:hidden;box-shadow:var(--shadow-soft)}
.gallery-media{min-height:310px;display:flex;align-items:center;justify-content:center;padding:22px}
.gallery-media img{max-height:240px;filter:drop-shadow(0 22px 30px rgba(0,0,0,.14))}
.ivory{background:#eee7dc}.pearl{background:#ededeb}.smoke{background:#e6eaeb}.sand{background:#eadfce}
.gallery-copy{padding:22px}
.gallery-copy span,.gallery-copy li{font-size:13px;font-weight:900;color:#666}
.gallery-copy ul{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:16px 0 0;padding:0}
.gallery-copy li{padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:#f7f5ef}

.selection-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:20px;align-items:start}
.selection-copy{padding:30px;border-radius:34px;background:#151515;color:#fff}
.selection-copy p,.selection-copy .eyebrow{color:#d6d6d6}
.selection-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.selection-cards article{padding:24px;border-radius:28px;background:rgba(255,255,255,.78);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.selection-cards small{font-size:46px;font-weight:900;color:#d1c8b9;letter-spacing:-.06em}

.compare-shell{padding:28px;border-radius:36px;background:rgba(255,255,255,.78);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.compare-table{overflow:hidden;border-radius:24px;border:1px solid var(--line);background:#fff}
.compare-head,.compare-row{display:grid;grid-template-columns:1.2fr 1fr 1.2fr 1.2fr 1fr .65fr;gap:14px;align-items:center;padding:17px 20px}
.compare-head{background:#151515;color:#fff;font-weight:900}.compare-row{border-top:1px solid var(--line)}
.mini-btn{border:1px solid var(--line);background:#f7f5ef;border-radius:999px;padding:9px 12px;cursor:pointer}

.download-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:18px}
.download-copy{padding:34px;border-radius:36px;background:#151515;color:#fff}
.download-copy p,.download-copy .eyebrow{color:#d7d7d7}.download-copy h2,.support-copy h2{font-size:clamp(36px,5vw,66px);line-height:.94;letter-spacing:-.05em;margin:14px 0}
.download-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.download-steps article{padding:24px;border-radius:30px;background:rgba(255,255,255,.78);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.download-steps strong{font-size:44px;color:#d3c7b8;line-height:1}

.security-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px}
.security-copy{padding:30px;border-radius:34px;background:#f3efe7;border:1px solid var(--line)}
.security-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.security-list article{padding:24px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.security-list strong{display:block;margin-bottom:8px}

.support-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
.support-copy,.support-card{padding:30px;border-radius:36px;background:rgba(255,255,255,.78);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.support-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.support-tags span{padding:9px 13px;border-radius:999px;border:1px solid var(--line);background:#f7f5ef;font-size:13px}
.support-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.support-card div{padding:16px 0;border-top:1px solid var(--line)}
.support-card div:first-of-type{border-top:0}.support-card strong{display:block}.support-card span{display:block;color:#666;margin-top:6px;word-break:break-word}

.showcase-strip{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:28px 30px;border-radius:34px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.showcase-strip h2{font-size:52px;line-height:.95;margin:12px 0;letter-spacing:-.05em}
.showcase-strip p{max-width:720px;color:#666}

.faq-list{display:grid;gap:14px;max-width:980px;margin:0 auto}.faq-list details{padding:18px 20px;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}.faq-list summary{list-style:none;cursor:pointer;font-weight:900}.faq-list summary::-webkit-details-marker{display:none}.faq-list p{margin-top:10px}

.site-footer{margin-top:30px;background:#151515;color:#fff}.footer-inner{display:flex;justify-content:space-between;gap:24px;padding:34px 0}.footer-brand strong{font-size:28px}.footer-brand p{max-width:640px;margin-top:10px;color:#cfcfcf}.footer-links{display:flex;flex-direction:column;align-items:flex-end;gap:8px}.footer-contact{padding:12px 18px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:transparent;color:#fff;cursor:pointer}

.contact-modal{display:none;position:fixed;inset:0;z-index:120;align-items:center;justify-content:center}.contact-modal.open{display:flex}.modal-mask{position:absolute;inset:0;background:rgba(15,15,15,.62);backdrop-filter:blur(8px)}.modal-panel{position:relative;z-index:2;width:min(440px,calc(100% - 26px));padding:28px;border-radius:32px;background:#fff;border:1px solid var(--line);box-shadow:0 32px 90px rgba(0,0,0,.18);text-align:center}.modal-close{position:absolute;right:14px;top:10px;border:0;background:transparent;font-size:34px;cursor:pointer}.modal-panel h2{font-size:38px;line-height:1;margin:10px 0 18px}.qr-frame{border-radius:24px;overflow:hidden;border:1px solid var(--line)}.modal-links{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:16px}.modal-links a{padding:10px 14px;border-radius:999px;background:#f7f5ef;border:1px solid var(--line)}
.float-contact{position:fixed;right:18px;bottom:18px;z-index:90;padding:14px 18px;border-radius:999px;border:1px solid #d4cbbc;background:#151515;color:#fff;font-weight:900;cursor:pointer;box-shadow:var(--shadow)}body.lock{overflow:hidden}

.portal-hero{padding:48px 0 34px}.portal-hero-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:20px;align-items:center}.portal-visual{display:grid;gap:14px;padding:18px;border-radius:36px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}.portal-visual article{padding:18px;border-radius:24px;background:#f7f5ef;border:1px solid var(--line)}.portal-visual small{font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase;color:#777}.portal-visual strong{display:block;margin-top:8px;word-break:break-all}.portal-links-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.portal-link-card{padding:24px;border-radius:30px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}.portal-band-inner{margin-top:12px}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .65s ease, transform .65s ease}.reveal.visible{opacity:1;transform:none}

@media(max-width:1180px){
  .site-nav,.nav-actions{display:none}.nav-toggle{display:block}.nav-frame.open .site-nav{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;gap:0;padding:10px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.nav-frame.open .site-nav a{padding:12px 14px}.nav-frame.open .nav-actions{display:flex;position:absolute;top:410px;left:0;right:0;padding:12px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);gap:10px}
  .atelier-grid,.selection-grid,.download-grid,.security-grid,.support-grid,.portal-hero-grid{grid-template-columns:1fr}
  .gateway-grid{grid-template-columns:1fr 1fr}.gateway-card.large{grid-row:auto;grid-column:span 2}
  .gallery,.download-steps,.selection-cards,.security-list,.portal-links-grid{grid-template-columns:repeat(2,1fr)}
  .compare-head{display:none}.compare-row{grid-template-columns:1fr 1fr}
  .footer-inner,.showcase-strip{flex-direction:column;align-items:flex-start}.footer-links{align-items:flex-start}
}
@media(max-width:760px){
  .container{width:min(var(--container),calc(100% - 24px))}.section-heading h2,.atelier-copy h1,.portal-copy h1{font-size:42px}
  .hero-actions,.support-actions,.nav-frame.open .nav-actions{flex-direction:column}
  .gateway-grid,.gallery,.download-steps,.selection-cards,.security-list,.portal-links-grid,.compare-row{grid-template-columns:1fr}.gateway-card.large{grid-column:auto}
  .atelier-stage{min-height:460px}.stage-product img{max-height:330px}.stage-tile{position:static;margin:10px}.atelier-stage{display:flex;flex-direction:column;justify-content:flex-end}.stage-ring{display:none}
  .btn{width:100%}.footer-links{width:100%}.footer-links a,.footer-contact{width:100%;text-align:center}
}