:root{
    --paper:#F3E8D4;--deep:#E2D2B4;--card:#FBF3E4;--soft:#EDE0C8;--ink:#1A140A;
    --text:#2C2214;--muted:#5C4A30;--quiet:#7C6844;--gold:#7A5A20;--copper:#B88838;
    --line:rgba(26,20,10,.12);--strong:rgba(122,90,32,.50);--shadow:0 12px 28px rgba(26,20,10,.10);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}
a{color:inherit;text-decoration:none}a,button{touch-action:manipulation}button{font:inherit;color:inherit}img{display:block;max-width:100%;object-fit:contain;object-position:center}h1,h2,h3,p{margin-top:0}h1{font-size:24px;line-height:1.3;color:var(--ink);margin-bottom:14px}h2{font-size:20px;line-height:1.4;color:var(--ink);margin-bottom:12px}h3{font-size:16px;color:var(--ink);margin-bottom:8px}.site-main{padding-top:116px;min-height:70vh}.content-shell{width:min(960px,calc(100% - 32px));margin:0 auto}.section{padding:34px 0}.section-tight{padding:24px 0}.utility-strip{height:20px;background:var(--ink);color:var(--copper);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 960px)/2));font-size:12px}.utility-brand{font-weight:700;letter-spacing:.06em}.text-button{border:0;background:transparent;color:var(--copper);padding:0 6px;cursor:pointer}.site-fixed-head{position:fixed;top:0;left:0;right:0;z-index:60}.brand-bar{height:54px;background:var(--card);border-bottom:1px solid var(--strong);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 960px)/2))}.brand-home{height:44px;min-width:64px;display:flex;align-items:center;gap:8px}.brand-image img{height:24px;width:auto}.brand-image:empty{display:none}.brand-image:not(:empty)+.brand-fallback{display:none}.brand-fallback{font-size:16px;font-weight:800;color:var(--ink)}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.drawer-open,.search-close,.drawer-close{min-height:44px;display:inline-flex;align-items:center;justify-content:center}.app-link{padding:0 14px;border:1px solid var(--gold);border-radius:9px;background:var(--card);font-size:14px}.drawer-open,.drawer-close,.search-close{border:1px solid var(--line);border-radius:9px;background:var(--soft);padding:0 14px;cursor:pointer}.dot-nav{height:42px;background:var(--card);display:flex;align-items:flex-start;justify-content:center;gap:34px;border-bottom:1px solid var(--line);padding-top:5px}.dot-link{font-size:13px;color:var(--muted);display:flex;flex-direction:column;align-items:center;line-height:1.2}.dot{width:8px;height:8px;border-radius:50%;border:1px solid var(--ink);margin-bottom:3px}.dot-link.active .dot{background:var(--copper);border-color:var(--copper)}.dot-link.active{color:var(--gold);font-weight:700}.page-overlay{position:fixed;inset:0;background:rgba(26,20,10,.46);opacity:0;pointer-events:none;z-index:75}.page-overlay.active{opacity:1;pointer-events:auto}.nav-drawer{position:fixed;left:16px;bottom:16px;width:240px;max-height:380px;background:var(--card);border:1px solid var(--strong);border-radius:12px;box-shadow:var(--shadow);z-index:90;transform:translateY(calc(100% + 40px));visibility:hidden;pointer-events:none;transition:.2s ease}.nav-drawer.open{transform:none;visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:10px;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:8px}.drawer-brand img{height:24px}.drawer-scroll{max-height:320px;overflow:auto;padding:10px}.drawer-scroll section+section{margin-top:12px}.drawer-scroll h2{font-size:13px;margin:0 0 4px;color:var(--gold)}.drawer-scroll a{display:block;min-height:44px;padding:7px 8px;border-radius:8px}.drawer-scroll a:hover{background:var(--soft)}.drawer-scroll b{display:block;font-size:13px}.drawer-scroll small{display:block;color:var(--muted);font-size:12px;line-height:1.45}.search-panel{position:fixed;top:74px;left:50%;width:min(640px,calc(100% - 32px));transform:translate(-50%,-20px);background:var(--card);border:1px solid var(--strong);border-radius:0 0 12px 12px;box-shadow:var(--shadow);z-index:88;opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}.search-panel.open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-inner{padding:18px}.search-topline{display:flex;align-items:center;justify-content:space-between}.search-links{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.search-links a{min-height:44px;display:flex;align-items:center;justify-content:center;background:var(--soft);border:1px solid var(--line);border-radius:8px}.hero-index{padding:34px 0 26px}.mini-index{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}.mini-index a{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:6px}.mini-index i{width:8px;height:8px;border-radius:50%;background:var(--copper)}.lead{font-size:16px;line-height:1.8;max-width:760px}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{min-height:44px;padding:0 18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,#1A140A 0%,#B88838 100%);color:#FBF3E4}.btn-secondary{background:var(--card);border:1px solid var(--gold);color:var(--ink)}.btn:hover{transform:translateY(-1px)}.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--copper);outline-offset:3px}.image-slot{background:var(--card);border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%}.slot-wide{height:168px}.slot-medium{height:220px}.slot-tall{height:320px}.index-slice{background:var(--deep);padding:22px 0}.index-slice .image-slot{border-color:var(--strong)}.three-story{display:grid;grid-template-columns:1.15fr .9fr .9fr;gap:14px}.story-card,.note-card,.plain-card,.topic-card,.faq-card,.legal-card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}.story-card.feature{border-color:var(--strong)}.story-card .image-slot{height:150px;margin-bottom:14px}.clip-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.clip-page{background:var(--soft);border-left:4px solid var(--copper);padding:20px;border-radius:10px}.clip-page .image-slot{height:180px;margin-bottom:14px}.shelf-head{height:180px;margin-bottom:16px}.shelf-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}.period-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.period-strip article{background:var(--card);border-top:3px solid var(--copper);padding:16px;border-radius:0 0 10px 10px}.status-stack{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:120px 1fr auto;gap:12px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px}.status-tag{color:var(--gold);font-weight:700}.app-display{text-align:center}.app-images{display:flex;justify-content:center;align-items:flex-end;gap:18px;flex-wrap:wrap;margin-bottom:18px}.app-poster{width:min(360px,100%);height:300px}.app-icon{width:48px;height:48px;background:var(--card);border:1px solid var(--line);border-radius:12px}.app-copy{max-width:760px;margin:0 auto;text-align:left}.method-list{display:grid;gap:12px}.method-list article{background:var(--card);padding:18px;border-left:3px solid var(--gold)}.faq-six{display:grid;grid-template-columns:1fr 1fr;gap:12px}.brand-story{background:var(--ink);color:var(--paper);border-radius:12px;padding:24px}.brand-story h2,.brand-story h3{color:var(--copper)}.brand-story p{color:var(--paper)}.page-intro{padding:34px 0 20px}.eyebrow{font-size:12px;color:var(--gold);letter-spacing:.08em;margin-bottom:8px}.sublead{color:var(--muted);max-width:760px}.tri-layout{display:grid;grid-template-columns:1.25fr .85fr .85fr;gap:14px}.tri-layout article{background:var(--card);border:1px solid var(--line);padding:18px;border-radius:10px}.tri-layout article:first-child{border-color:var(--strong)}.tri-layout .image-slot{height:190px;margin-bottom:14px}.horizontal-sections{display:grid;gap:0;border-top:1px solid var(--strong)}.horizontal-sections article{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}.horizontal-sections article:first-child .image-slot{grid-column:1/-1;height:210px;margin-bottom:4px}.clip-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}.clip-layout article{background:var(--soft);padding:20px;border-radius:10px}.clip-layout article:nth-child(even){margin-top:38px}.clip-layout .image-slot{height:180px;margin-bottom:14px}.single-flow{max-width:760px;margin:0 auto}.single-flow .image-slot{height:220px;margin:10px 0 20px}.single-flow article{padding:18px 0;border-bottom:1px solid var(--line)}.phase-layout{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.phase-layout article{min-height:210px;background:var(--card);border-top:4px solid var(--copper);padding:18px;border-radius:0 0 10px 10px}.phase-image{height:200px;margin:18px 0}.timeline-status{display:grid;gap:12px}.timeline-status article{display:grid;grid-template-columns:110px 1fr;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}.timeline-status strong{color:var(--gold)}.memo-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.memo-list article{background:var(--card);border:1px solid var(--line);padding:18px;border-radius:10px}.memo-list article:first-child{grid-column:1/-1}.memo-list .image-slot{height:180px;margin-bottom:12px}.steps-list{counter-reset:step;display:grid;gap:12px}.steps-list article{position:relative;background:var(--card);padding:18px 18px 18px 62px;border:1px solid var(--line);border-radius:10px}.steps-list article:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--copper);font-weight:700}.feature-list{display:grid;gap:14px}.feature-list article{display:grid;grid-template-columns:180px 1fr;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}.feature-list article:nth-child(even){grid-template-columns:1fr 180px}.feature-list article:nth-child(even) h2,.feature-list article:nth-child(even) p{grid-column:1}.feature-list article:nth-child(even) .topic-mark{grid-column:2;grid-row:1/span 2}.topic-mark{min-height:100px;border:1px solid var(--strong);background:var(--soft);display:grid;place-items:center;border-radius:10px;color:var(--gold);font-weight:800;text-align:center;padding:12px}.center-cards{display:grid;gap:16px;max-width:760px;margin:0 auto}.center-cards article{text-align:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px}.center-cards .image-slot{height:190px;margin-bottom:16px}.app-page{max-width:820px;margin:0 auto}.app-page .image-stack{display:flex;gap:16px;justify-content:center;align-items:flex-end;flex-wrap:wrap}.app-page .image-slot{height:300px;width:min(420px,100%)}.app-page .app-icon{flex:0 0 48px}.app-page article{margin-top:18px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px}.install-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.install-grid article{background:var(--card);padding:20px;border:1px solid var(--line);border-radius:10px}.legal-stack{display:grid;gap:14px}.legal-card h2{border-bottom:1px solid var(--line);padding-bottom:10px}.help-map{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.help-map article{background:var(--card);padding:18px;border:1px solid var(--line);border-radius:10px}.faq-list{display:grid;gap:12px}.faq-list article{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}.faq-list h2{font-size:16px;margin-bottom:8px}.contact-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-paths article{background:var(--card);border-left:4px solid var(--copper);padding:20px;border-radius:10px}.about-banner{height:200px;margin-bottom:20px}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.about-grid article{background:var(--card);padding:20px;border:1px solid var(--line);border-radius:10px}.about-grid article:first-child{grid-column:1/-1}.site-footer{background:var(--ink);color:var(--paper);border-top:1px solid var(--copper);font-size:13px;margin-top:42px}.footer-inner{width:min(960px,calc(100% - 32px));margin:0 auto;padding:28px 0 70px}.footer-brand{display:flex;align-items:center;gap:10px;color:var(--copper);margin-bottom:18px}.footer-logo img{height:24px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-groups h2{font-size:13px;color:var(--copper);margin-bottom:8px}.footer-groups a{display:block;padding:3px 0;color:var(--paper)}.footer-note{max-width:780px;margin:22px 0 8px;color:#F3E8D4}.copyright{color:#D7C7A8;margin-bottom:0}.mobile-bottom{display:none}
@media (max-width:720px){
    .site-main{padding-top:74px;padding-bottom:56px}.dot-nav{display:none}.brand-bar{padding:0 16px}.utility-strip{padding:0 16px}.brand-actions{gap:6px}.app-link,.drawer-open{padding:0 10px}.search-panel{inset:0;width:auto;transform:none;border:0;border-radius:0;background:var(--ink);color:var(--copper);z-index:100}.search-panel.open{transform:none}.search-inner{padding:86px 16px 24px}.search-topline strong{color:var(--copper)}.search-panel p{color:var(--paper)}.search-links{grid-template-columns:1fr 1fr}.search-links a{background:rgba(184,136,56,.12);color:var(--paper);border-color:rgba(184,136,56,.36)}.nav-drawer{left:6%;bottom:62px;width:88%;max-height:380px}.drawer-scroll{max-height:318px}.three-story,.clip-pair,.shelf-cards,.period-strip,.phase-layout,.memo-list,.faq-six,.help-map,.contact-paths,.about-grid,.install-grid{grid-template-columns:1fr}.tri-layout{grid-template-columns:1fr}.clip-layout{grid-template-columns:1fr}.clip-layout article:nth-child(even){margin-top:0}.status-row{grid-template-columns:1fr}.horizontal-sections article{grid-template-columns:1fr}.feature-list article,.feature-list article:nth-child(even){grid-template-columns:1fr}.feature-list article:nth-child(even) .topic-mark,.feature-list article:nth-child(even) h2,.feature-list article:nth-child(even) p{grid-column:auto;grid-row:auto}.footer-groups{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--card);border-top:1px solid var(--strong);z-index:70;display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{display:grid;place-items:center;font-size:13px;min-height:48px}.mobile-bottom a.active{background:var(--copper);color:var(--ink);font-weight:700}.footer-inner{padding-bottom:84px}.slot-wide{height:168px}.app-poster,.app-page .image-slot{height:280px}.about-banner{height:200px}
}
@media (max-width:420px){.footer-groups{grid-template-columns:1fr}.button-row .btn{width:100%}.brand-home{min-width:44px}.app-link{font-size:13px}.drawer-open{font-size:13px}}

.center-intro{text-align:center}.center-intro .sublead{margin-left:auto;margin-right:auto}.image-gap{margin-bottom:16px}.image-gap-lg{margin-bottom:18px}.brand-cover{height:220px;margin:0 0 16px}