:root{--bg:#F6EDE4;--deep:#E8D8C8;--paper:#FFF8F2;--soft:#F0E4D6;--ink:#1A1612;--text:#2A241C;--muted:#5A5048;--subtle:#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);--shell:960px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:120px}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;object-fit:contain;object-position:center}.shell{width:min(calc(100% - 32px),var(--shell));margin:0 auto}.skip-link{position:fixed;left:16px;top:-50px;background:var(--ink);color:var(--paper);padding:8px 12px;z-index:1000}.skip-link:focus{top:8px}.top-rail{position:fixed;z-index:80;top:0;left:0;right:0;height:20px;background:var(--ink);color:var(--paper);font-size:12px}.top-rail-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.top-search-trigger{border:0;background:transparent;color:var(--paper);font:inherit;padding:0 4px;cursor:pointer}.site-head{position:fixed;z-index:79;top:20px;left:0;right:0;height:54px;background:var(--paper);border-bottom:1px solid var(--orange)}.head-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand-link{display:flex;align-items:center;min-height:44px;min-width:52px;font-weight:800;font-size:16px}.brand-image-wrap img{height:24px;width:auto}.brand-fallback{display:block}.brand-image-wrap:not(:empty)+.brand-fallback{display:none}.head-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-trigger{height:44px;min-width:72px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:4px;background:var(--paper);color:var(--ink);font-size:14px;font-weight:700;cursor:pointer}.menu-trigger{border-color:var(--ink);background:var(--ink);color:var(--paper)}.quick-nav{position:fixed;z-index:78;top:74px;left:0;right:0;height:46px;background:var(--paper);border-bottom:1px solid var(--border)}.quick-nav-inner{height:46px;display:flex;align-items:center;gap:28px}.quick-item{display: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;background:transparent}.quick-item.is-current .quick-square{background:var(--orange);border-color:var(--orange)}.site-main{min-height:60vh}.section{padding:54px 0}.section-tight{padding:36px 0}.panel{background:var(--paper);border:1px solid var(--border);border-radius:4px;box-shadow:var(--shadow)}.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--copper);font-weight:800}.hero{padding:50px 0 34px}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;color:var(--ink);margin:10px 0 14px}.hero .lead,.page-hero .lead{font-size:16px;color:var(--muted);max-width:760px}.hero-indexes{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.hero-index{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700}.hero-index span:first-child{width:18px;height:18px;border-radius:2px;background:var(--orange);display:inline-block}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.btn-primary,.btn-secondary{min-height:42px;padding:0 18px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}.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:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.btn-primary:hover,.btn-secondary:hover,.app-link:hover{transform:translateY(-1px)}h2{font-size:20px;line-height:1.35;color:var(--ink);margin:0 0 14px}h3{font-size:16px;line-height:1.4;color:var(--ink);margin:0 0 8px}p{margin:0 0 14px}.slant-row{display:grid;grid-template-columns:minmax(220px,300px) 1fr;gap:28px;align-items:center;background:var(--soft);padding:22px;border-left:6px solid var(--orange);clip-path:polygon(0 0,100% 0,97% 100%,0 100%)}.image-slot{background:var(--paper);border:1px solid var(--border);border-radius:4px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%}.slot-176{height:176px}.slot-220{height:220px}.slot-260{height:260px}.slot-300{height:300px}.slot-320{height:320px}.slot-200{height:200px}.double-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}.story-card{background:var(--paper);border:1px solid var(--border);padding:20px;border-radius:4px}.story-card .image-slot{margin-bottom:16px}.paper-roll{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.roll-card{background:var(--paper);border:1px solid var(--border);padding:22px;border-radius:2px;position:relative}.roll-card:after{content:"";position:absolute;right:-1px;top:22px;bottom:22px;width:3px;background:var(--orange)}.rack-head{display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:center;margin-bottom:18px}.rack-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}.rack-card{background:var(--deep);padding:22px;border-left:4px solid var(--ink)}.thirds{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.third{background:var(--paper);padding:18px;border-top:4px solid var(--orange)}.timeline{display:grid;gap:10px}.timeline-row{display:grid;grid-template-columns:120px 1fr;gap:16px;background:var(--paper);border:1px solid var(--border);padding:16px}.status{display:inline-flex;align-items:center;justify-content:center;min-height:32px;padding:0 10px;background:var(--ink);color:var(--paper);font-size:13px;border-radius:3px}.status.orange{background:var(--orange)}.app-split{display:grid;grid-template-columns:minmax(180px,280px) 1fr;gap:28px;align-items:center}.app-media{display:grid;gap:12px}.app-icon-row{display:flex;align-items:center;gap:12px}.app-icon-row .image-slot{width:52px;height:52px}.reading-points{display:grid;grid-template-columns:1fr 1fr;gap:18px}.reading-point{background:var(--paper);padding:18px;border-bottom:3px solid var(--orange)}.faq-compact{display:grid;gap:10px}.faq-compact details{background:var(--paper);border:1px solid var(--border);padding:14px 16px;border-radius:4px}.faq-compact summary{cursor:pointer;font-weight:800;color:var(--ink)}.brand-section{background:var(--ink);color:var(--paper);padding:36px;border-radius:4px}.brand-section h2{color:var(--paper)}.brand-section p{color:#F6EDE4}.page-hero{padding:44px 0 26px}.page-hero .meta-line{display:flex;gap:8px;flex-wrap:wrap}.meta-chip{font-size:12px;border:1px solid var(--orange);padding:3px 8px;border-radius:99px;color:var(--copper)}.section-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.section-box{background:var(--paper);border:1px solid var(--border);padding:22px;border-radius:4px}.section-box.dark{background:var(--ink);color:var(--paper)}.section-box.dark h2,.section-box.dark h3{color:var(--paper)}.section-box.orange{background:var(--orange);color:var(--paper);border-color:var(--orange)}.section-box.orange h2,.section-box.orange h3{color:var(--paper)}.quote-line{font-size:18px;color:var(--ink);padding:18px 0;border-top:1px solid var(--orange);border-bottom:1px solid var(--orange)}.note-list{display:grid;gap:12px}.note-item{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;background:var(--paper);border:1px solid var(--border);padding:16px}.note-num{width:36px;height:36px;background:var(--orange);color:var(--paper);display:flex;align-items:center;justify-content:center;font-weight:800;border-radius:2px}.status-list{display:grid;gap:12px}.status-card{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:18px;background:var(--paper);border-left:5px solid var(--orange)}.method-steps{counter-reset:step;display:grid;gap:16px}.method-step{counter-increment:step;background:var(--paper);padding:20px 20px 20px 70px;position:relative;border:1px solid var(--border)}.method-step:before{content:counter(step,decimal-leading-zero);position:absolute;left:18px;top:18px;color:var(--orange);font-size:20px;font-weight:900}.topic-list{display:grid;gap:14px}.topic{display:grid;grid-template-columns:180px 1fr;background:var(--paper);border:1px solid var(--border)}.topic strong{background:var(--ink);color:var(--paper);padding:18px}.topic div{padding:18px}.center-card{max-width:760px;margin:0 auto;background:var(--paper);border:1px solid var(--border);padding:28px;text-align:center}.center-card+.center-card{margin-top:18px}.terms{display:grid;gap:18px}.term{background:var(--paper);padding:22px;border:1px solid var(--border)}.term h2{display:flex;align-items:center;gap:10px}.term h2:before{content:"";width:10px;height:10px;background:var(--orange);border-radius:2px}.contact-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-path{background:var(--paper);padding:20px;border-top:4px solid var(--ink)}.about-banner{height:200px;background:var(--paper);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin:10px 0 24px}.about-banner img{width:100%;height:100%}.about-brand-image{height:240px}.faq-list{display:grid;gap:14px}.faq-item{background:var(--paper);border:1px solid var(--border);padding:20px}.faq-item h2{font-size:16px}.site-footer{background:var(--ink);color:#F6EDE4;border-top:1px solid var(--orange);margin-top:54px;padding:36px 0 86px;font-size:13px}.footer-top{display:grid;grid-template-columns:180px 1fr;gap:28px}.footer-brand{display:grid;gap:6px;align-content:start}.footer-logo img{height:24px;width:auto}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-groups h2{font-size:13px;color:var(--paper);margin-bottom:8px}.footer-groups a{display:block;color:#F6EDE4;padding:3px 0}.footer-note{border-top:1px solid rgba(246,237,228,.15);margin-top:24px;padding-top:20px;color:#DCCFC3}.overlay{position:fixed;inset:0;background:rgba(26,22,18,.56);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:90}.overlay.is-open{opacity:1;visibility:visible}.menu-panel{position:fixed;z-index:95;left:50%;top:26px;transform:translate(-50%,-18px);width:min(320px,88vw);max-height:360px;overflow:auto;background:var(--paper);border:1px solid var(--orange);box-shadow:var(--shadow);padding:14px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.menu-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.menu-panel-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);padding-bottom:10px;margin-bottom:8px}.menu-brand{display:flex;align-items:center;gap:8px}.menu-logo img{height:24px}.panel-close{min-width:52px;min-height:44px;border:1px solid var(--border);background:var(--paper);border-radius:4px;cursor:pointer}.menu-group{padding:7px 0;border-bottom:1px solid var(--border)}.menu-group:last-child{border-bottom:0}.menu-group h2{font-size:13px;margin-bottom:4px;color:var(--copper)}.menu-group a{display:grid;grid-template-columns:72px 1fr;gap:8px;padding:7px 4px}.menu-group a span{color:var(--muted);font-size:12px}.search-panel{position:fixed;z-index:96;left:0;right:0;top:74px;visibility:hidden;pointer-events:none;opacity:0}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(calc(100% - 32px),720px);margin:0 auto;background:var(--paper);border:1px solid var(--orange);box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-card label{display:block;margin:10px 0 6px;font-weight:700}.search-card input{width:100%;min-height:44px;border:1px solid var(--border);background:var(--paper);padding:0 12px;font:inherit}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid var(--orange);border-radius:4px}.search-empty{margin-top:12px;color:var(--muted)}.mobile-bottom{display:none}.info-strip{background:var(--deep);padding:18px;border-left:4px solid var(--orange)}.info-strip strong{color:var(--ink)}.split-vertical{display:grid;grid-template-columns:220px 1fr;gap:22px}.index-blocks{display:grid;grid-template-columns:180px 1fr;gap:0;background:var(--paper);border:1px solid var(--border)}.index-blocks+.index-blocks{margin-top:12px}.index-label{background:var(--orange);color:var(--paper);padding:20px;font-weight:900}.index-copy{padding:20px}.diagonal-list{display:grid;gap:14px}.diagonal-item{background:var(--paper);border:1px solid var(--border);padding:20px;clip-path:polygon(0 0,100% 0,98% 100%,2% 100%)}.legal-aside{border-left:5px solid var(--ink);padding:18px 20px;background:var(--deep)}
@media(max-width:720px){body{padding-top:74px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}.quick-nav{display:none}.site-head{top:20px}.head-inner{gap:8px}.brand-link{min-width:44px}.head-actions{gap:6px}.app-link,.menu-trigger{min-width:64px;padding:0 10px}.section{padding:38px 0}.hero{padding:34px 0 22px}.double-cards,.paper-roll,.rack-cards,.thirds,.section-grid,.reading-points,.contact-paths{grid-template-columns:1fr}.slant-row,.rack-head,.app-split,.split-vertical{grid-template-columns:1fr;clip-path:none}.slant-row{padding:16px}.timeline-row,.status-card{grid-template-columns:1fr}.topic{grid-template-columns:1fr}.topic strong{padding:12px 16px}.footer-top{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:calc(84px + env(safe-area-inset-bottom))}.mobile-bottom{position:fixed;z-index:76;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}.mobile-bottom a.is-current{background:var(--orange);color:var(--ink)}.search-panel{top:0;bottom:0;background:var(--ink)}.search-card{width:100%;height:100%;border:0;background:var(--ink);color:var(--paper);margin:0;padding:26px 16px}.search-head strong,.search-card label{color:var(--paper)}.search-card .panel-close{background:var(--paper);color:var(--ink)}.search-card input{background:var(--paper);color:var(--ink)}.search-presets a{color:var(--paper);border-color:var(--orange)}.search-empty{color:#DCCFC3}.menu-panel{top:24px}.about-banner{height:200px}.footer-groups a{min-height:32px}.slot-320{height:300px}}
@media(min-width:721px){.brand-fallback{font-size:16px}.site-footer{padding-bottom:40px}}

.mt-16{margin-top:16px}.mt-18{margin-top:18px}.btn-row-center{justify-content:center}