:root{
  --bg:#F6EDE4;--deep:#E8D8C8;--paper:#FFF8F2;--soft:#F0E4D6;--ink:#1A1612;--text:#2A241C;--muted:#5A5048;--light:#7A7068;--orange:#E07030;--copper:#B06030;--border:rgba(26,22,18,.12);--focus:rgba(224,112,48,.50);--shadow:0 12px 28px rgba(26,22,18,.10)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden;padding-top:120px}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:12px;top:-60px;z-index:999;background:var(--paper);padding:8px 12px;border:1px solid var(--orange)}.skip-link:focus{top:8px}.top-edge{position:fixed;inset:0 0 auto 0;height:20px;background:var(--ink);color:var(--bg);z-index:110}.top-edge-inner,.head-inner,.quick-nav-inner,.footer-inner,.site-main{max-width:960px;margin:0 auto}.top-edge-inner{height:20px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;font-size:12px}.text-button{border:0;background:transparent;color:var(--bg);padding:0 6px;height:20px}.site-head{position:fixed;top:20px;left:0;right:0;height:54px;background:var(--paper);border-bottom:1px solid var(--orange);z-index:109}.head-inner{height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}.brand-link{display:inline-flex;align-items:center;min-width:44px;min-height:44px}.brand-logo,.footer-logo{height:24px;max-width:130px;object-fit:contain}.brand-fallback,.footer-logo-text{font-weight:800;font-size:18px}.head-actions{display:flex;gap:8px;align-items:center}.app-link,.menu-button{height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--ink);background:var(--paper);color:var(--ink);border-radius:4px;font-size:14px}.menu-button{background:var(--ink);color:var(--paper)}.quick-nav{position:fixed;top:74px;left:0;right:0;height:46px;background:var(--paper);z-index:108;border-bottom:1px solid var(--border)}.quick-nav-inner{display:flex;align-items:center;gap:26px;height:46px;padding:0 16px}.quick-item{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:13px}.quick-square{width:18px;height:18px;border:1px solid var(--ink);border-radius:2px}.quick-item.is-active .quick-square{background:var(--orange);border-color:var(--orange)}.site-main{padding:34px 16px 72px}.hero-copy{padding:26px 0 18px}.eyebrow-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.eyebrow-chip{display:inline-flex;align-items:center;min-height:32px;padding:0 10px;background:var(--orange);color:var(--paper);font-size:13px;border-radius:3px}.hero-copy h1,.page-head h1{margin:0 0 10px;color:var(--ink);font-size:24px;line-height:1.3}.hero-line{font-size:18px;font-weight:700;color:var(--copper);margin:0 0 10px}.lead{max-width:760px;margin:0;color:var(--muted)}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn-primary,.btn-secondary{min-height:42px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;font-size:14px}.btn-primary{background:linear-gradient(135deg,#1A1612 0%,#E07030 100%);color:var(--paper)}.btn-secondary{background:var(--paper);border:1px solid var(--orange);color:var(--ink)}a:hover,.btn-primary:hover,.btn-secondary:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.section{margin:34px 0}.section h2{font-size:20px;line-height:1.35;color:var(--ink);margin:0 0 14px}.section h3{font-size:16px;line-height:1.4;color:var(--ink);margin:0 0 8px}.section p{margin:0 0 12px}.media-slot{background:var(--soft);border:1px solid var(--border);min-height:140px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.slot-short{height:176px}.slot-medium{height:220px}.slot-app{height:320px}.slot-banner{height:200px}.slant-record{display:grid;grid-template-columns:minmax(0,300px) 1fr;gap:22px;align-items:stretch;background:var(--paper);border:1px solid var(--border);box-shadow:var(--shadow);padding:16px;clip-path:polygon(0 0,100% 0,96% 100%,0 100%)}.dual-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.card{background:var(--paper);border:1px solid var(--border);border-radius:4px;padding:18px}.card.orange{background:var(--orange);color:var(--paper);border-color:var(--orange)}.card.dark{background:var(--ink);color:var(--paper)}.card.dark h2,.card.dark h3,.card.orange h2,.card.orange h3{color:var(--paper)}.scroll-pages{display:grid;grid-template-columns:1.15fr .85fr;gap:14px}.scroll-sheet{background:var(--paper);border:1px solid var(--border);padding:18px;position:relative}.scroll-sheet:after{content:"";position:absolute;left:10px;right:10px;bottom:-5px;height:5px;background:var(--deep);border:1px solid var(--border);border-top:0}.rack-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.rack-head{grid-column:1/-1}.period-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}.period-item{background:var(--ink);color:var(--paper);padding:16px;border-radius:3px}.status-list{display:grid;gap:10px}.status-item{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:center;background:var(--paper);border-left:6px solid var(--orange);padding:14px 16px}.app-split{display:grid;grid-template-columns:minmax(200px,300px) 1fr;gap:24px;align-items:center}.app-copy{background:var(--paper);border:1px solid var(--border);padding:20px}.app-icon-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.app-icon-row .media-slot{width:48px;height:48px;min-height:48px;flex:0 0 48px}.points{display:grid;gap:10px}.point{padding:14px 16px;border:1px solid var(--border);background:var(--paper)}.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px}.faq-mini article{background:var(--paper);padding:15px;border:1px solid var(--border)}.page-head{margin-bottom:26px;padding:22px 0;border-bottom:1px solid var(--border)}.page-kicker{font-size:13px;color:var(--copper);font-weight:700;margin-bottom:8px}.page-head p{max-width:780px;color:var(--muted);margin:0}.split-note{display:grid;grid-template-columns:1fr 1fr;gap:14px}.feature-list{display:grid;gap:12px}.feature-row{display:grid;grid-template-columns:140px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--border)}.feature-row strong{color:var(--ink)}.checklist{list-style:none;padding:0;margin:0;display:grid;gap:10px}.checklist li{background:var(--paper);border:1px solid var(--border);padding:14px 16px}.method-steps{counter-reset:step;display:grid;gap:14px}.method-step{counter-increment:step;display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start}.method-step:before{content:counter(step);width:44px;height:44px;background:var(--orange);color:var(--paper);display:flex;align-items:center;justify-content:center;font-weight:800;border-radius:3px}.topic-list{display:grid;gap:12px}.topic-item{display:grid;grid-template-columns:170px 1fr;gap:18px;background:var(--paper);border:1px solid var(--border);padding:16px}.center-card{max-width:740px;margin:0 auto 18px;text-align:center;background:var(--paper);border:1px solid var(--border);padding:22px}.terms{display:grid;gap:14px}.terms section{background:var(--paper);border-top:4px solid var(--orange);padding:18px}.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.help-grid article{background:var(--paper);border:1px solid var(--border);padding:16px}.qa-list{display:grid;gap:12px}.qa-item{background:var(--paper);border:1px solid var(--border);padding:17px}.qa-item h2{font-size:16px;margin:0 0 8px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.contact-grid article{background:var(--paper);border:1px solid var(--border);padding:18px}.brand-statement{display:grid;grid-template-columns:1fr .9fr;gap:18px}.brand-panel{background:var(--ink);color:var(--paper);padding:22px}.brand-panel h2{color:var(--paper)}.timeline-lite{display:grid;gap:10px}.timeline-lite div{border-left:5px solid var(--orange);background:var(--paper);padding:14px 16px}.callout{padding:16px 18px;background:var(--orange);color:var(--paper);border-radius:3px}.callout strong{color:var(--paper)}.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--orange)}.footer-inner{padding:26px 16px 74px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links h2{font-size:13px;margin:0 0 8px;color:var(--paper)}.footer-links a{display:block;font-size:13px;color:var(--bg);padding:4px 0}.footer-note,.copyright{font-size:13px;color:#F6EDE4;margin:18px 0 0;max-width:820px}.overlay{position:fixed;inset:0;background:rgba(26,22,18,.55);z-index:200;visibility:hidden;opacity:0;pointer-events:none;transition:.18s}.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}.menu-panel{position:fixed;top:28px;left:50%;transform:translate(-50%,-18px);width:320px;max-height:360px;overflow:auto;background:var(--paper);z-index:210;border:1px solid var(--orange);box-shadow:var(--shadow);visibility:hidden;opacity:0;pointer-events:none;transition:.18s}.menu-panel.is-open{transform:translate(-50%,0);visibility:visible;opacity:1;pointer-events:auto}.menu-head{position:sticky;top:0;background:var(--paper);display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--border);z-index:2}.menu-brand{display:flex;align-items:center;gap:8px}.close-button{min-height:40px;padding:0 12px;border:1px solid var(--ink);background:var(--paper);color:var(--ink);border-radius:3px}.menu-groups{padding:8px 12px 14px}.menu-groups h2{font-size:13px;color:var(--copper);margin:10px 0 4px}.menu-groups a{display:grid;grid-template-columns:72px 1fr;gap:8px;padding:8px 0;border-bottom:1px solid var(--border)}.menu-groups strong{font-size:14px}.menu-groups span{font-size:12px;color:var(--muted)}.search-panel{position:fixed;left:0;right:0;top:74px;z-index:205;visibility:hidden;opacity:0;pointer-events:none}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-card{max-width:720px;margin:0 auto;background:var(--paper);border:1px solid var(--orange);box-shadow:var(--shadow);padding:18px}.search-title-row{display:flex;align-items:center;justify-content:space-between}.search-title-row h2{font-size:20px;margin:0}.search-card label{display:block;font-size:13px;margin-top:12px}.search-card input{width:100%;height:44px;border:1px solid var(--border);background:var(--bg);padding:0 12px;color:var(--ink)}.search-results{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.search-results a{min-height:44px;display:flex;align-items:center;padding:0 12px;border:1px solid var(--border);background:var(--soft)}.no-scroll{overflow:hidden}.mobile-bottom{display:none}.muted{color:var(--muted)}.small{font-size:13px}.hr{height:1px;background:var(--border);margin:22px 0}
@media(max-width:720px){body{padding-top:74px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}.quick-nav{display:none}.site-main{padding-top:24px}.dual-cards,.scroll-pages,.rack-cards,.period-grid,.app-split,.faq-mini,.split-note,.help-grid,.contact-grid,.brand-statement{grid-template-columns:1fr}.slant-record{grid-template-columns:1fr;clip-path:none}.feature-row,.topic-item{grid-template-columns:1fr}.slant-record .media-slot{max-width:300px}.app-split .media-slot{max-width:300px;margin:0 auto}.status-item{grid-template-columns:1fr;gap:5px}.footer-links{grid-template-columns:1fr 1fr}.footer-inner{padding-bottom:82px}.menu-panel{width:88%;max-height:360px;top:24px}.search-panel{top:0;bottom:0;background:var(--ink);padding:18px 12px}.search-card{height:100%;overflow:auto;background:var(--ink);color:var(--paper);border-color:var(--orange)}.search-title-row h2,.search-card p,.search-card label{color:var(--paper)}.search-card .close-button{background:var(--paper);color:var(--ink)}.search-card input{background:#2A241C;color:var(--paper);border-color:rgba(255,255,255,.18)}.search-results{grid-template-columns:1fr}.search-results a{background:#2A241C;color:var(--paper);border-color:rgba(255,255,255,.16)}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);z-index:120;background:var(--ink);border-top:1px solid var(--orange)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;color:var(--paper);font-size:13px}.mobile-bottom a.is-active{background:var(--orange);color:var(--ink);font-weight:700}.head-inner{padding:0 12px}.app-link,.menu-button{padding:0 10px}.site-main{padding-left:16px;padding-right:16px}.footer-links{gap:12px}}
@media(max-width:420px){.footer-links{grid-template-columns:1fr 1fr}.head-actions{gap:5px}.app-link,.menu-button{font-size:13px}.site-main{padding-bottom:58px}.eyebrow-row{gap:6px}.search-card{padding:14px}}