:root{
  --bean-light:#F3E6C8; --bean-deep:#5A3C16; --shell:#8A5A22; --sprout:#6A7A38;
  --warm:#FFF8E8; --deep-bg:#E4D2A8; --soft:#F7EDD4; --title:#3A2A12;
  --text:#4A3418; --muted:#7A5A28; --subtle:#A08048; --border:rgba(90,60,22,.16);
  --border-strong:rgba(90,60,22,.42); --shadow:0 12px 28px rgba(58,42,18,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bean-light);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}
button{font:inherit;color:inherit}
button,a{touch-action:manipulation}
:focus-visible{outline:3px solid rgba(106,122,56,.5);outline-offset:3px}
.skip-link{position:fixed;left:12px;top:-100px;z-index:2000;background:var(--warm);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}
.skip-link:focus{top:12px}
.site-header{position:fixed;inset:0 0 auto;z-index:900;box-shadow:0 4px 14px rgba(58,42,18,.06)}
.sprout-line{height:22px;background:var(--bean-deep);color:var(--warm);font-size:12px;line-height:22px}
.bar-inner{width:min(1080px,calc(100% - 32px));margin:0 auto}
.sprout-line .bar-inner{display:flex;justify-content:space-between;align-items:center;height:22px}
.text-button,.pod-menu-button,.icon-button{border:0;background:transparent;cursor:pointer;min-height:44px;padding:0 12px}
.sprout-line .text-button{min-height:22px;color:var(--warm);font-size:12px}
.pod-bar{height:56px;background:var(--bean-light);border-bottom:1px solid var(--border-strong)}
.pod-row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:56px;gap:12px}
.brand{display:inline-flex;align-items:center;justify-self:start;height:44px;min-width:80px;font-weight:800;color:var(--bean-deep);font-size:16px}
.brand-media:has(img)+.brand-fallback{display:none}.brand-media img{height:26px;width:auto;max-width:140px}
.brand-media:empty{display:none}
.app-entry{justify-self:center;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;background:linear-gradient(135deg,#8A5A22 0%,#5A3C16 100%);color:var(--warm);font-size:14px;font-weight:700}
.pod-menu-button{justify-self:end;border:1px solid var(--border-strong);border-radius:10px;background:var(--warm);color:var(--bean-deep);font-weight:700}
.ridge-tabs{height:38px;background:var(--warm);border-bottom:1px solid var(--border-strong);font-size:13px}
.ridge-row{height:38px;display:flex;justify-content:space-between;align-items:center}
.ridge-left,.ridge-right{display:flex;gap:8px;align-items:center}
.ridge-tabs a{display:flex;align-items:center;justify-content:center;min-height:30px;padding:0 13px;border-radius:8px;color:var(--bean-deep)}
.ridge-tabs a.is-active{background:var(--bean-deep);color:var(--warm)}
.site-main{padding-top:116px;min-height:60vh}
.page-shell{width:min(1080px,calc(100% - 32px));margin:0 auto;padding:36px 0 72px}
.eyebrow{display:inline-block;color:var(--sprout);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3{margin:0;color:var(--title);line-height:1.3}h1{font-size:24px}h2{font-size:20px}h3{font-size:16px}
p{margin:0 0 1em}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.hero-intro{padding:18px 0 24px;display:grid;gap:14px;justify-items:start}
.hero-intro .main-saying{font-size:28px;font-weight:900;letter-spacing:-.02em;color:var(--bean-deep)}
.button-primary,.button-secondary{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:800;white-space:nowrap;transition:transform .15s ease,box-shadow .15s ease}
.button-primary{background:linear-gradient(135deg,#8A5A22 0%,#5A3C16 100%);color:var(--warm);box-shadow:var(--shadow)}
.button-secondary{background:var(--warm);border:1px solid var(--shell);color:var(--bean-deep)}
.button-primary:hover,.button-secondary:hover{transform:translateY(-1px)}
.media-slot{background:var(--soft);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain}
.banner-slot{height:200px;margin:8px 0 30px;background:var(--deep-bg)}
.quad-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0 36px}
.quad-card{background:var(--warm);border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.quad-card .media-slot{height:140px;border:0;border-radius:0;border-bottom:1px solid var(--border)}
.quad-card .content{padding:18px}.quad-card p{margin:.55em 0 0;color:var(--muted)}
.section-block{margin:36px 0;padding:24px;background:var(--warm);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.longread-media{height:180px;margin:16px 0 20px}
.prose p{margin:0 0 1em}.prose strong{color:var(--bean-deep)}
.timeline{position:relative;margin:18px 0 0;padding-left:28px}.timeline:before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--deep-bg)}
.timeline-item{position:relative;padding:0 0 22px 18px}.timeline-item:before{content:"";position:absolute;left:-26px;top:5px;width:10px;height:10px;border-radius:50%;background:var(--sprout);border:3px solid var(--warm)}
.timeline-item:last-child{padding-bottom:0}.timeline-item span{display:block;font-size:12px;color:var(--sprout);font-weight:800}.timeline-item h3{margin:3px 0 6px}
.split-notes{display:grid;grid-template-columns:1fr 1fr;gap:18px}.note-panel{background:var(--soft);border:1px solid var(--border);border-radius:10px;padding:20px}.note-panel ul{margin:12px 0 0;padding-left:1.1em}
.theme-strips{display:grid;gap:10px}.theme-strip{display:grid;grid-template-columns:150px 1fr auto;gap:16px;align-items:center;background:var(--soft);border:1px solid var(--border);border-radius:10px;padding:14px 16px}.status{font-size:12px;font-weight:800;border:1px solid var(--border-strong);border-radius:999px;padding:4px 9px;color:var(--bean-deep);background:var(--warm)}
.app-feature{display:grid;grid-template-columns:minmax(240px,360px) 1fr;gap:30px;align-items:center}.app-feature .media-slot{height:340px}.icon-inline{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--deep-bg);overflow:hidden}.icon-inline img{width:48px;height:48px}
.faq-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.faq-mini article{background:var(--soft);border:1px solid var(--border);border-radius:10px;padding:18px}.faq-mini h3{margin-bottom:8px}
.brand-story{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.brand-story .media-slot{min-height:220px}
.page-hero{display:grid;gap:10px;padding:18px 0 26px;border-bottom:1px solid var(--border-strong)}
.page-hero .lead{max-width:820px}
.single-longread{max-width:820px;margin:28px auto}.single-longread .media-slot{height:220px;margin:20px 0}.single-longread section{padding:22px 0;border-bottom:1px solid var(--border)}
.observe-directory{display:grid;grid-template-columns:220px 1fr;gap:26px;margin-top:28px}.observe-index{align-self:start;position:sticky;top:140px;background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:18px}.observe-index a{display:block;padding:8px 0;color:var(--muted);border-bottom:1px solid var(--border)}.observe-index a:last-child{border:0}.observe-content{display:grid;gap:18px}.observe-card{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:22px}.observe-card .media-slot{height:180px;margin:14px 0}
.inner-quad{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px}.inner-quad article{background:var(--warm);border:1px solid var(--border);border-radius:12px;overflow:hidden}.inner-quad .media-slot{height:170px;border:0;border-radius:0;border-bottom:1px solid var(--border)}.inner-quad .content{padding:20px}
.notebook-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:28px}.notebook-column{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:24px}.notebook-column h2{margin-bottom:14px}.notebook-entry{padding:16px 0;border-top:1px solid var(--border)}
.vertical-axis{max-width:860px;margin:30px auto;background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:28px}.vertical-axis .timeline-item{padding-bottom:30px}
.topic-bars{display:grid;gap:12px;margin-top:28px}.topic-bar{background:var(--warm);border:1px solid var(--border);border-left:5px solid var(--shell);border-radius:10px;padding:18px 20px;display:grid;grid-template-columns:170px 1fr auto;gap:18px;align-items:start}.topic-bar p{margin:0;color:var(--muted)}
.memo-list{display:grid;gap:16px;margin-top:28px}.memo-item{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:22px}.memo-item ul{margin:12px 0 0;padding-left:1.15em}.memo-item li+li{margin-top:7px}
.method-flow{display:grid;gap:18px;margin-top:28px}.method-step{display:grid;grid-template-columns:120px 1fr;gap:20px;background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:22px}.method-step .label{font-weight:900;color:var(--sprout)}
.theme-list{display:grid;gap:14px;margin-top:28px}.theme-row{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--border-strong)}.theme-row:last-child{border-bottom:0}.theme-row h2{color:var(--bean-deep)}
.product-layout{display:grid;grid-template-columns:320px 1fr;gap:30px;align-items:start;margin-top:28px}.product-layout .media-slot{height:340px}.feature-list{display:grid;gap:12px}.feature-list article{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:18px}
.legal-sections{display:grid;gap:18px;margin-top:28px}.legal-sections section{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:24px}.legal-sections h2{margin-bottom:12px}
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}.help-card{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:22px}
.faq-list{display:grid;gap:14px;margin-top:28px}.faq-item{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:22px}.faq-item h2{font-size:17px;margin-bottom:10px}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px}.contact-card{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:22px}.contact-card p:last-child{margin-bottom:0}
.site-footer{background:#2E220E;color:var(--bean-light);border-top:1px solid rgba(243,230,200,.28);font-size:13px}.footer-inner{width:min(1080px,calc(100% - 32px));margin:0 auto;padding:34px 0 78px}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:24px}.footer-brand-logo img{height:26px;width:auto}.footer-brand strong{display:block;font-size:16px;color:var(--warm)}.footer-brand span{display:block;color:var(--bean-light);opacity:.8}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:20px 0;border-top:1px solid rgba(243,230,200,.14);border-bottom:1px solid rgba(243,230,200,.14)}.footer-grid h2{font-size:13px;color:var(--warm);margin-bottom:9px}.footer-grid a{display:block;padding:3px 0;color:var(--bean-light);opacity:.88}.copyright-note{max-width:860px;margin:20px 0 8px}.copyright-line{margin:0;opacity:.75}
.overlay{position:fixed;inset:0;background:rgba(46,34,14,.42);z-index:1100;opacity:0;pointer-events:none;transition:opacity .18s ease}.overlay.is-visible{opacity:1;pointer-events:auto}
.pod-panel{position:fixed;z-index:1200;top:0;right:0;width:min(380px,88vw);height:100dvh;background:var(--warm);color:var(--text);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s ease;box-shadow:-16px 0 40px rgba(46,34,14,.2);overflow-y:auto}.pod-panel.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.panel-head{position:sticky;top:0;background:var(--warm);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;padding:10px 14px;z-index:2}.panel-brand{display:flex;align-items:center;gap:10px}.panel-logo img{height:26px;width:auto}.icon-button{border:1px solid var(--border-strong);border-radius:10px;background:var(--soft);font-size:13px}.panel-groups{padding:12px 16px 30px}.panel-groups section{padding:12px 0;border-bottom:1px solid var(--border)}.panel-groups h2{font-size:13px;color:var(--sprout);margin-bottom:6px}.panel-groups a{display:block;padding:10px 0}.panel-groups b{display:block;color:var(--bean-deep)}.panel-groups span{display:block;color:var(--muted);font-size:13px;line-height:1.55;margin-top:2px}
.search-layer{position:fixed;z-index:1200;top:78px;left:0;right:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);opacity:0;transition:.18s ease}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{width:min(880px,calc(100% - 32px));margin:0 auto;background:var(--warm);border:1px solid var(--border-strong);border-radius:0 0 14px 14px;padding:22px;box-shadow:var(--shadow)}.search-top{display:flex;justify-content:space-between;gap:20px;align-items:start}.search-card p{color:var(--muted);margin-top:10px}.search-links{display:flex;flex-wrap:wrap;gap:10px}.search-links a{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border-radius:999px;background:var(--soft);border:1px solid var(--border);color:var(--bean-deep);font-weight:700}
.mobile-bottom{display:none}
@media (max-width:780px){
  .ridge-tabs{display:none}.site-main{padding-top:78px}.bar-inner,.page-shell,.footer-inner{width:calc(100% - 32px)}
  .quad-grid,.split-notes,.faq-mini,.brand-story,.inner-quad,.notebook-layout,.help-grid,.contact-grid{grid-template-columns:1fr}
  .quad-card .media-slot{height:150px}.section-block{padding:20px}.theme-strip,.topic-bar{grid-template-columns:1fr}.status{justify-self:start}
  .app-feature,.product-layout{grid-template-columns:1fr}.app-feature .media-slot,.product-layout .media-slot{height:300px;max-width:380px;width:100%;justify-self:center}
  .observe-directory{grid-template-columns:1fr}.observe-index{position:static;display:flex;gap:8px;overflow-x:auto;padding:10px}.observe-index a{white-space:nowrap;border-bottom:0;border-right:1px solid var(--border);padding:8px 12px}.observe-index a:last-child{border-right:0}
  .method-step,.theme-row{grid-template-columns:1fr;gap:8px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}.footer-inner{padding-bottom:92px}
  .mobile-bottom{position:fixed;z-index:850;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:var(--warm);border-top:1px solid var(--border-strong);box-shadow:0 -6px 20px rgba(58,42,18,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--bean-deep)}.mobile-bottom a.is-active{background:var(--bean-deep);color:var(--warm)}
  .search-layer{top:0;bottom:0;background:var(--bean-deep);color:var(--warm)}.search-card{width:100%;min-height:100%;border:0;border-radius:0;background:var(--bean-deep);color:var(--warm);padding:28px 16px 80px}.search-card h2,.search-card .eyebrow{color:var(--warm)}.search-card p{color:var(--bean-light)}.search-links a{background:rgba(255,248,232,.08);border-color:rgba(255,248,232,.24);color:var(--warm)}.search-card .icon-button{color:var(--warm);border-color:rgba(255,248,232,.35);background:rgba(255,248,232,.06)}
}
@media (max-width:460px){
  .hero-intro .main-saying{font-size:24px}.pod-row{grid-template-columns:minmax(0,1fr) auto auto}.brand{min-width:0}.brand-media img{max-width:110px}.app-entry{padding:0 12px}.footer-grid{grid-template-columns:1fr 1fr}.page-shell{padding-top:28px}.section-block{margin:28px 0;padding:18px}.banner-slot{height:200px}
}