:root{
  --bg:#F4F6FF;--deep:#E4E8F6;--paper:#FBFBFF;--soft:#EEF0FA;
  --ink:#1E1A2A;--text:#2E2A3A;--muted:#5A5668;--assist:#7A7688;
  --coral:#E07070;--gold:#E0B050;--mint:#70C090;--blue:#70A8D8;--violet:#A080D0;
  --border:rgba(30,26,42,.12);--strong-border:rgba(160,128,208,.48);
  --shadow:0 12px 28px rgba(30,26,42,.08);--max:980px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:126px}
a{color:inherit;text-decoration:none}
a:hover{color:var(--violet)}
button,input{font:inherit}
button{color:inherit}
img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}
.shell{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
.site-edge{position:fixed;left:0;top:0;bottom:0;width:6px;z-index:1000;background:linear-gradient(to bottom,var(--coral) 0 20%,var(--gold) 20% 40%,var(--mint) 40% 60%,var(--blue) 60% 80%,var(--violet) 80%)}
.skip-link{position:fixed;left:12px;top:-80px;z-index:1300;background:var(--ink);color:var(--paper);padding:10px 14px;border-radius:8px}.skip-link:focus{top:10px}
.topline{position:fixed;left:0;right:0;top:0;height:20px;z-index:950;background:var(--paper);border-bottom:1px solid rgba(30,26,42,.05);font-size:12px;color:var(--muted)}
.topline-inner{height:20px;display:flex;align-items:center;justify-content:space-between;padding-left:8px}
.plain-trigger{border:0;background:transparent;cursor:pointer}.top-search{min-width:54px;height:44px;margin-top:12px;display:flex;align-items:center;justify-content:center;position:relative;z-index:3}
.brandbar{position:fixed;left:0;right:0;top:20px;height:54px;z-index:940;background:var(--paper);border-bottom:1px solid rgba(160,128,208,.34)}
.brandbar-inner{height:54px;display:flex;align-items:center;justify-content:space-between;padding-left:8px}
.brand{min-height:44px;display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:var(--ink)}
.logo-slot{display:flex;align-items:center}.brand-logo,.footer-logo{height:24px;width:auto;max-width:160px}.brand-fallback{font-size:16px;font-weight:800;letter-spacing:.02em}
.brand-actions{display:flex;align-items:center;gap:8px}.mini-action,.menu-trigger,.close-trigger{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px}
.mini-action{padding:0 14px;border:1px solid var(--strong-border);background:var(--paper);font-size:14px;font-weight:700}
.menu-trigger{min-width:72px;gap:8px;border:1px solid var(--border);background:var(--soft);cursor:pointer;padding:0 12px}.menu-trigger i,.menu-trigger i:before,.menu-trigger i:after{content:"";display:block;width:15px;height:1.5px;background:var(--ink);position:relative}.menu-trigger i:before{position:absolute;top:-5px}.menu-trigger i:after{position:absolute;top:5px}
.primary-ring{position:fixed;left:0;right:0;top:74px;height:52px;z-index:930;background:var(--paper);border-bottom:1px solid var(--border)}
.primary-ring-inner{height:52px;display:flex;align-items:center;justify-content:center;gap:34px}
.ring-item{min-height:44px;display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);font-weight:700}.ring-dot{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--ink);font-size:12px;border:2px solid transparent}.ring-item.is-active .ring-dot{border-color:var(--ink);box-shadow:0 0 0 2px var(--paper),0 0 0 3px var(--strong-border)}
.tone-coral{background:var(--coral)}.tone-gold{background:var(--gold)}.tone-mint{background:var(--mint)}.tone-blue{background:var(--blue)}.tone-violet{background:var(--violet)}
.site-main{min-height:60vh;padding:34px 0 88px}
h1,h2,h3{color:var(--ink);margin-top:0;letter-spacing:-.02em}h1{font-size:24px;line-height:1.3;margin-bottom:14px}h2{font-size:20px;line-height:1.4;margin-bottom:12px}h3{font-size:16px;line-height:1.45;margin-bottom:8px}p{margin:0 0 14px}.eyebrow,.section-kicker{font-size:12px;color:var(--violet);font-weight:800;letter-spacing:.08em;margin-bottom:8px}.hero-lead{max-width:790px;color:var(--muted);font-size:15px;line-height:1.85}.page-hero{padding:32px 0 26px;border-bottom:1px solid var(--border);margin-bottom:28px}
.btn{height:42px;min-width:112px;padding:0 18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;white-space:nowrap;transition:.18s ease}.btn-primary{background:linear-gradient(90deg,var(--blue) 0%,var(--violet) 100%);color:var(--paper)}.btn-primary:hover{color:var(--paper);transform:translateY(-1px);box-shadow:var(--shadow)}.btn-secondary{background:var(--paper);border:1px solid var(--violet);color:var(--ink)}.btn-secondary:hover{background:var(--soft);color:var(--ink)}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.text-link{display:inline-flex;min-height:44px;align-items:center;font-weight:800;color:var(--violet)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(112,168,216,.75);outline-offset:3px}
.media-slot{background:var(--paper);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden;min-height:72px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}.section-head>a{min-height:44px;display:flex;align-items:center;font-size:13px;color:var(--violet);font-weight:800}
/* Home */
.home-intro{padding:32px 0 34px}.home-index{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}.home-index a{display:flex;align-items:center;gap:7px;min-height:44px;padding:0 10px;background:var(--paper);border:1px solid var(--border);border-radius:999px;font-size:13px;font-weight:800}.home-intro .hero-lead{max-width:800px}
.slice-feature{min-height:230px;display:grid;grid-template-columns:1.1fr .9fr;background:var(--paper);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:42px;box-shadow:var(--shadow)}.slice-copy{padding:28px 30px;align-self:center}.slice-media{height:176px;align-self:start;border:0;border-radius:0;clip-path:polygon(15% 0,100% 0,100% 100%,0 100%);background:var(--soft)}
.timeline-block,.orbit-cards,.shelf-intro,.period-strip,.status-section,.app-feature,.method-band,.faq-preview,.brand-story{margin-bottom:44px}.timeline{position:relative;display:grid;gap:0;padding-left:28px}.timeline:before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--coral),var(--gold),var(--mint),var(--blue),var(--violet))}.timeline article{position:relative;padding:0 0 26px 24px}.timeline-mark{position:absolute;left:-34px;top:0;width:34px;height:24px;background:var(--paper);border:1px solid var(--strong-border);border-radius:999px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:900}.timeline-media{height:184px;margin-bottom:16px}
.orbit-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.orbit-card{min-height:210px;padding:22px;border-radius:12px;background:var(--paper);border:1px solid var(--border);position:relative}.orbit-card:before{content:"";position:absolute;width:58px;height:58px;border:1px solid var(--strong-border);border-radius:50%;right:14px;top:14px}.orbit-card.has-media{display:grid;grid-template-columns:.9fr 1.1fr;gap:18px}.orbit-card.has-media .media-slot{height:160px}
.shelf-head{height:144px;margin-bottom:18px}.shelf-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.shelf-grid article{background:var(--paper);border-left:4px solid var(--blue);padding:20px;border-radius:8px;box-shadow:var(--shadow)}.shelf-grid article:nth-child(2){border-left-color:var(--violet)}.shelf-grid a{font-weight:800;color:var(--violet)}
.period-strip{display:grid;grid-template-columns:240px 1fr;gap:24px;align-items:center;background:var(--deep);padding:22px;border-radius:12px}.period-media{height:180px}.period-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.period-grid article{background:var(--paper);padding:14px;border-radius:9px}.period-grid p{font-size:13px;color:var(--muted);margin:0}
.status-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px}.status-media{height:190px}.status-list{display:grid;gap:8px}.status-list span{display:grid;grid-template-columns:74px 1fr;align-items:center;background:var(--paper);border:1px solid var(--border);border-radius:8px;padding:9px 12px}.status-list b{color:var(--violet)}
.app-feature{display:grid;grid-template-columns:1fr;gap:20px;align-items:center}.app-feature .app-visual{justify-self:center;width:min(100%,360px)}.app-visual{display:flex;flex-direction:column;align-items:center;gap:12px}.app-shot{height:320px;width:min(100%,330px)}.app-icon{width:58px;height:58px;padding:5px}.app-icon img{width:48px;height:48px}.app-copy{background:var(--paper);padding:28px;border:1px solid var(--border);border-radius:12px}
.method-band{background:var(--ink);color:var(--paper);padding:30px;border-radius:12px}.method-band h2{color:var(--paper)}.method-band .section-kicker{color:#cbb9eb}.method-cols{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}.method-cols p{margin:0;color:#e6e3ee}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.faq-grid details{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:14px}.faq-grid summary{cursor:pointer;font-weight:800;color:var(--ink);min-height:32px}.faq-grid p{padding-top:10px;margin:0;color:var(--muted)}.brand-story{padding:28px;background:var(--paper);border:1px solid var(--strong-border);border-radius:12px}
/* Timeline page */
.timeline-long{position:relative;padding-left:56px}.timeline-long:before{content:"";position:absolute;left:21px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--coral),var(--gold),var(--mint),var(--blue),var(--violet))}.timeline-long article{position:relative;background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:24px;margin-bottom:22px}.timeline-long article>span{position:absolute;left:-58px;top:18px;width:44px;height:44px;border-radius:50%;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-weight:900}.timeline-long .tall{height:220px;margin-bottom:20px}
/* Diagonal page */
.diagonal-page{display:grid;grid-template-columns:.9fr 1.1fr;min-height:300px;background:var(--paper);border-radius:12px;overflow:hidden;border:1px solid var(--border);margin-bottom:26px}.diagonal-media{height:100%;min-height:300px;border:0;border-radius:0;clip-path:polygon(0 0,100% 0,82% 100%,0 100%);background:var(--soft)}.diagonal-copy{padding:34px 32px 30px 12px;align-self:center}.scene-sequence{display:grid;grid-template-columns:1fr 1fr;gap:16px}.scene-sequence article{padding:22px;background:var(--paper);border-top:4px solid var(--gold);border-radius:9px;box-shadow:var(--shadow)}.scene-sequence article:nth-child(2){border-top-color:var(--coral)}.scene-sequence article:nth-child(3){border-top-color:var(--blue)}.scene-sequence article:nth-child(4){border-top-color:var(--violet)}
/* Orbit page */
.orbit-page{position:relative;padding:18px 0 8px}.orbit-center{width:280px;height:220px;margin:0 auto 24px;border-radius:50%}.orbit-page-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.orbit-page-grid article{background:var(--paper);padding:24px;border-radius:48px 12px 48px 12px;border:1px solid var(--border);min-height:250px}.orbit-page-grid article:nth-child(even){border-radius:12px 48px 12px 48px}
/* Single column */
.single-column-page{max-width:800px}.single-column-page .wide-media{height:250px;margin-bottom:26px}.single-column-page article{padding:22px 0;border-bottom:1px solid var(--border)}.single-column-page article:nth-child(odd){padding-left:38px;border-left:4px solid var(--mint)}
/* Period page */
.period-page{display:grid;grid-template-columns:240px 1fr;gap:18px}.period-hero-media{grid-row:1/4;height:100%;min-height:720px;position:sticky;top:148px}.period-panel{background:var(--paper);border:1px solid var(--border);border-radius:12px;padding:24px;position:relative}.period-panel>span{display:inline-flex;padding:5px 12px;border-radius:999px;background:var(--deep);font-weight:900;color:var(--violet);margin-bottom:10px}.period-panel:nth-child(3)>span{color:#97721a}.period-panel:nth-child(4)>span{color:#287a54}
/* Status page */
.status-page-media{height:220px;margin-bottom:22px}.status-row{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;padding:22px 24px;background:var(--paper);border:1px solid var(--border);border-left:7px solid var(--mint);margin-bottom:12px;border-radius:8px}.status-row.doing{border-left-color:var(--gold)}.status-row.pending{border-left-color:var(--violet)}.status-row span{display:inline-flex;background:var(--soft);padding:3px 9px;border-radius:999px;font-size:12px;font-weight:900;margin-bottom:8px}.status-note{margin-top:26px;padding:26px;background:var(--deep);border-radius:12px}
/* Checklist */
.checklist-page{display:grid;grid-template-columns:1fr 1fr;gap:18px}.checklist-media{grid-column:1/-1;height:230px}.checklist-page article{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:22px}.check-list{padding-left:20px;margin:0 0 16px}.check-list li{margin-bottom:8px}.check-list li::marker{color:var(--violet)}
/* Method page */
.method-page{counter-reset:m;display:grid;gap:0}.method-page article{display:grid;grid-template-columns:70px 1fr;column-gap:22px;padding:26px 0;border-top:1px solid var(--border)}.method-page article>span{grid-row:1/5;width:54px;height:54px;border-radius:50%;background:var(--paper);border:2px solid var(--strong-border);display:flex;align-items:center;justify-content:center;font-weight:900;color:var(--violet)}.method-page article h2,.method-page article p,.method-page article .btn{grid-column:2}.method-page .copyright-callout{background:var(--ink);color:var(--paper);padding:24px;border-radius:12px;border:0}.method-page .copyright-callout h2{color:var(--paper)}
/* Topic list */
.topic-list{display:grid;gap:14px}.topic-list article{display:grid;grid-template-columns:84px 1fr;gap:20px;align-items:start;background:var(--paper);padding:24px;border:1px solid var(--border);border-radius:10px}.topic-no{font-size:28px;font-weight:900;color:var(--violet);line-height:1;border-bottom:4px solid var(--gold);padding-bottom:10px}.topic-list article:nth-child(even){margin-left:7%}.topic-list article:nth-child(odd){margin-right:7%}
/* Centered shelf */
.centered-shelf{max-width:760px;text-align:center}.centered-media{height:220px;margin:0 auto 26px}.centered-shelf article{background:var(--paper);border:1px solid var(--border);border-radius:12px;padding:22px 28px;margin:0 auto 14px;max-width:680px}.centered-shelf article:nth-child(2){transform:translateX(-28px)}.centered-shelf article:nth-child(3){transform:translateX(24px)}.centered-shelf article:nth-child(4){transform:translateX(-14px)}.centered-shelf article:nth-child(5){transform:translateX(18px)}.centered-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:22px}
/* App page */
.app-page{display:block}.app-page-visual{display:flex;flex-direction:column;align-items:center;gap:12px;width:min(100%,340px);margin:0 auto 26px}.app-page .app-shot{height:320px;width:100%}.app-page article{max-width:780px;margin:0 auto 16px;background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:22px}.app-page article:nth-child(even){border-left:5px solid var(--blue)}.app-page article:nth-child(odd){border-left:5px solid var(--violet)}
/* Instruction */
.instruction-page{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.instruction-page article{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:22px}.instruction-page article:nth-child(1){grid-column:1/8}.instruction-page article:nth-child(2){grid-column:8/13}.instruction-page article:nth-child(3){grid-column:1/6}.instruction-page article:nth-child(4){grid-column:6/13}.instruction-page article:nth-child(5){grid-column:2/12;background:var(--deep)}
/* Legal / grade / privacy */
.legal-steps{display:grid;gap:18px}.legal-steps article{padding:24px;background:var(--paper);border-left:6px solid var(--violet);border-radius:8px}.legal-steps article:nth-child(2){margin-left:6%;border-left-color:var(--blue)}.legal-steps article:nth-child(3){margin-left:12%;border-left-color:var(--mint)}.legal-steps article:nth-child(4){margin-left:6%;border-left-color:var(--gold)}.legal-steps article:nth-child(5){border-left-color:var(--coral)}
.grade-layout{display:grid;gap:16px}.grade-layout article{display:grid;grid-template-columns:64px 1fr;gap:18px;background:var(--paper);padding:22px;border-radius:12px;border:1px solid var(--border)}.grade-layout article:nth-child(even){margin-left:8%}.grade-mark{width:54px;height:54px;border-radius:12px;background:var(--deep);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:900;color:var(--violet)}
.privacy-columns{columns:2;column-gap:18px}.privacy-columns article{break-inside:avoid;background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:22px;margin:0 0 18px}.privacy-columns article:nth-child(3){background:var(--deep)}
/* Help */
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.help-grid article{background:var(--paper);padding:22px;border:1px solid var(--border);border-radius:10px}.unique-help article:nth-child(1),.unique-help article:nth-child(4){transform:translateY(12px)}.unique-help article:nth-child(3),.unique-help article:nth-child(6){background:var(--deep)}
/* FAQ */
.faq-page{max-width:820px;display:grid;gap:10px}.faq-page details{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:0 18px}.faq-page summary{min-height:58px;display:flex;align-items:center;cursor:pointer;font-weight:900;color:var(--ink);list-style:none}.faq-page summary::-webkit-details-marker{display:none}.faq-page summary:after{content:"＋";margin-left:auto;color:var(--violet);font-size:20px}.faq-page details[open] summary:after{content:"－"}.faq-page p{padding:0 0 18px;color:var(--muted);margin:0}
/* Contact */
.contact-page{display:grid;grid-template-columns:1fr 1fr;gap:18px}.contact-page article{padding:22px;background:var(--paper);border:1px solid var(--border);border-radius:10px}.contact-page article>span{display:inline-flex;padding:4px 9px;border-radius:999px;background:var(--soft);color:var(--violet);font-size:12px;font-weight:900;margin-bottom:10px}.contact-page article:nth-child(2){transform:translateY(22px)}.contact-page article:nth-child(4){transform:translateY(22px)}.contact-notice{grid-column:1/-1;margin-top:20px;background:var(--ink);color:var(--paper);padding:24px;border-radius:12px}.contact-notice h2{color:var(--paper)}
/* About */
.about-page{display:grid;grid-template-columns:1fr 1fr;gap:20px}.about-banner{grid-column:1/-1;height:200px}.about-page article{padding:22px;background:var(--paper);border:1px solid var(--border);border-radius:10px}.about-page article:nth-child(3){margin-top:30px}.about-image{height:260px}.about-page article:last-child{grid-column:1/-1;max-width:760px;margin-inline:auto}
/* Footer */
.site-footer{position:relative;background:var(--ink);color:#F4F6FF;padding:36px 0 88px;font-size:13px}.footer-accent{position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(to bottom,var(--coral) 0 20%,var(--gold) 20% 40%,var(--mint) 40% 60%,var(--blue) 60% 80%,var(--violet) 80%)}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:26px}.footer-brand strong{font-size:16px}.footer-brand span{color:#c9c5d4}.footer-logo-slot{display:flex}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:26px}.footer-grid h2{font-size:13px;color:#fff;margin-bottom:10px}.footer-grid a{display:block;min-height:30px;color:#d7d3e0}.footer-grid a:hover{color:#fff}.footer-note{border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14);padding:16px 0;color:#d7d3e0}.footer-bottom{display:flex;justify-content:space-between;gap:18px;color:#aaa4b9}.footer-bottom a{color:#d7d3e0}
/* Overlay, menu, search */
.overlay{position:fixed;inset:0;background:rgba(30,26,42,.42);z-index:1050;opacity:0;pointer-events:none;transition:.18s ease}.overlay.is-visible{opacity:1;pointer-events:auto}.is-locked{overflow:hidden}
.menu-panel{position:fixed;z-index:1100;left:0;right:0;top:0;height:28vh;min-height:220px;max-height:430px;background:var(--paper);transform:translateY(-110%);visibility:hidden;pointer-events:none;transition:.22s ease;box-shadow:0 20px 44px rgba(30,26,42,.18);overflow-y:auto}.menu-panel.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.menu-panel-head{height:64px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--paper);z-index:2;border-bottom:1px solid var(--border)}.menu-brand{display:flex;align-items:center;gap:10px;font-size:16px}.close-trigger{min-width:62px;padding:0 14px;border:1px solid var(--border);background:var(--soft);cursor:pointer}.menu-groups{display:grid;grid-template-columns:1.1fr 1.1fr .8fr 1.25fr;gap:18px;padding:14px 0 24px}.menu-groups h2{font-size:13px;margin-bottom:8px}.menu-groups a{display:grid;grid-template-columns:88px 1fr;gap:8px;align-items:center;min-height:38px;border-top:1px solid rgba(30,26,42,.06)}.menu-groups b{font-size:13px}.menu-groups span{font-size:12px;color:var(--assist)}
.search-layer{position:fixed;left:0;right:0;top:74px;z-index:1090;visibility:hidden;pointer-events:none;transform:translateY(-14px);opacity:0;transition:.18s ease}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{background:var(--paper);border:1px solid var(--strong-border);border-radius:0 0 12px 12px;padding:22px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;gap:18px}.search-head strong{font-size:16px;color:var(--ink)}.search-head p{font-size:13px;color:var(--muted);margin:2px 0}.search-input-wrap{display:grid;grid-template-columns:110px 1fr;align-items:center;gap:10px;margin-top:12px}.search-input-wrap label{font-size:13px;font-weight:800}.search-input-wrap input{height:44px;border:1px solid var(--border);background:var(--bg);border-radius:9px;padding:0 12px;color:var(--ink)}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-presets a{min-height:40px;padding:0 14px;display:flex;align-items:center;border:1px solid var(--border);border-radius:999px;background:var(--soft);font-weight:800}.search-empty{margin:12px 0 0;color:var(--muted)}
.mobile-dock{display:none}
@media (max-width:760px){
  body{padding-top:74px;padding-bottom:58px}.site-main{padding-top:22px;padding-bottom:62px}.primary-ring{display:none}.shell{width:calc(100% - 32px)}.brandbar-inner,.topline-inner{padding-left:4px}.brand-actions{gap:6px}.mini-action{padding:0 10px}.menu-trigger{min-width:62px;padding:0 9px}.topline{font-size:11px}
  .page-hero{padding-top:24px;margin-bottom:22px}.hero-lead{line-height:1.78}
  .slice-feature,.diagonal-page,.status-section,.app-feature,.period-strip{grid-template-columns:1fr}.slice-media{order:-1;clip-path:polygon(0 0,100% 0,88% 100%,0 100%);height:176px}.slice-copy{padding:22px}.orbit-grid,.shelf-grid,.faq-grid,.scene-sequence,.orbit-page-grid,.checklist-page,.help-grid,.contact-page,.about-page{grid-template-columns:1fr}.orbit-card.has-media{grid-template-columns:1fr}.period-grid{grid-template-columns:1fr}.period-strip{padding:18px}.period-media{height:160px}.method-cols{grid-template-columns:1fr}.app-copy{padding:22px}
  .timeline-long{padding-left:38px}.timeline-long:before{left:12px}.timeline-long article>span{left:-47px;width:36px;height:36px;font-size:12px}.timeline-long article{padding:19px}.diagonal-media{min-height:190px;height:190px;clip-path:polygon(0 0,100% 0,100% 82%,0 100%)}.diagonal-copy{padding:22px}.orbit-page-grid article,.orbit-page-grid article:nth-child(even){border-radius:12px 40px 12px 40px}.single-column-page article:nth-child(odd){padding-left:18px}.period-page{grid-template-columns:1fr}.period-hero-media{grid-row:auto;position:static;min-height:0;height:200px}.status-row{grid-template-columns:1fr;gap:4px}.checklist-media{height:190px}.method-page article{grid-template-columns:52px 1fr;gap:12px}.method-page article>span{width:42px;height:42px}.topic-list article{grid-template-columns:54px 1fr;padding:18px}.topic-list article:nth-child(even),.topic-list article:nth-child(odd){margin:0}.topic-no{font-size:21px}.centered-shelf article:nth-child(n){transform:none}.app-page{display:block}.app-page-visual{position:static}.instruction-page{display:block}.instruction-page article{margin-bottom:14px}.legal-steps article:nth-child(n),.grade-layout article:nth-child(even){margin-left:0}.privacy-columns{columns:1}.grade-layout article{grid-template-columns:48px 1fr;padding:18px}.grade-mark{width:42px;height:42px;font-size:17px}.unique-help article:nth-child(n),.contact-page article:nth-child(n),.about-page article:nth-child(n){transform:none;margin-top:0}.contact-notice{grid-column:auto}.about-banner{grid-column:auto;height:200px}.about-page article:last-child{grid-column:auto}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.site-footer{padding-bottom:84px}
  .menu-panel{height:28vh;min-height:220px;max-height:none}.menu-groups{grid-template-columns:1fr 1fr;padding-inline:0}.menu-groups a{grid-template-columns:1fr}.menu-groups span{display:none}
  .search-layer{top:0;bottom:0;background:var(--ink)}.search-card{width:100%;height:100%;border:0;border-radius:0;background:var(--ink);color:var(--paper);padding-top:28px}.search-head strong{color:var(--paper);font-size:18px}.search-head p,.search-empty{color:#ccc6d7}.search-input-wrap{grid-template-columns:1fr}.search-input-wrap input{background:#292436;color:var(--paper);border-color:rgba(255,255,255,.18)}.search-presets a{background:#2a2537;border-color:rgba(255,255,255,.15);color:var(--paper)}.search-layer .close-trigger{background:#302a40;color:var(--paper);border-color:rgba(255,255,255,.18)}
  .mobile-dock{position:fixed;left:0;right:0;bottom:0;z-index:920;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border-top:1px solid var(--border)}.mobile-dock a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px;font-weight:800}.mobile-dock a.is-active{background:var(--violet);color:var(--paper)}
}
@media (max-width:430px){.footer-grid,.menu-groups{grid-template-columns:1fr}.home-index{gap:8px}.home-index a{padding:0 8px}.method-page article{grid-template-columns:1fr}.method-page article>span{grid-row:auto;margin-bottom:8px}.method-page article h2,.method-page article p,.method-page article .btn{grid-column:1}.topic-list article{grid-template-columns:1fr}.topic-no{width:max-content}.brand-actions .mini-action{font-size:12px}.menu-trigger span{font-size:12px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.install-check,.app-principles,.memo-usage,.visual-reading,.production-note,.shelf-guide,.status-rules,.topic-method,.period-summary,.scene-reading-note{margin-top:28px;padding:24px;background:var(--paper);border:1px solid var(--border);border-radius:12px}
.app-principles{border-left:6px solid var(--blue)}.memo-usage{border-left:6px solid var(--gold)}.visual-reading{border-left:6px solid var(--mint)}.production-note{border-left:6px solid var(--violet)}.shelf-guide{text-align:left;border-top:5px solid var(--blue)}.status-rules{background:var(--deep)}.topic-method{border-top:5px solid var(--coral)}.period-summary{border-top:5px solid var(--gold)}.scene-reading-note{border-top:5px solid var(--blue)}
.compact-note{margin-top:18px;padding:16px 18px;background:var(--soft);border-left:4px solid var(--violet);border-radius:8px;color:var(--muted)}
/* final accessibility and card-radius refinements */
.orbit-page-grid article,.orbit-page-grid article:nth-child(even){border-radius:12px;position:relative;padding-right:62px}
.orbit-page-grid article:before{content:"";position:absolute;right:16px;top:16px;width:30px;height:30px;border:2px solid var(--strong-border);border-radius:50%}
.menu-groups a{min-height:44px}.footer-grid a{min-height:44px;display:flex;align-items:center}.footer-bottom a{display:inline-flex;align-items:center;min-height:44px}.shelf-grid a{display:inline-flex;align-items:center;min-height:44px}
@media (max-width:760px){.orbit-page-grid article,.orbit-page-grid article:nth-child(even){border-radius:12px}}
.menu-trigger:hover,.close-trigger:hover,.plain-trigger:hover{background:var(--deep)}