:root{--bean-light:#F3E6C8;--bean-deep:#5A3C16;--shell:#8A5A22;--sprout:#6A7A38;--rice:#FFF8E8;--layer:#E4D2A8;--secondary:#F7EDD4;--title:#3A2A12;--text:#4A3418;--muted:#7A5A28;--soft:#A08048;--border:rgba(90,60,22,.16);--border-strong:rgba(90,60,22,.42);--shadow:0 12px 28px rgba(58,42,18,.08);--max:1080px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bean-light)}
body{margin:0;color:var(--text);background:var(--bean-light);font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.ui-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
a,button{touch-action:manipulation}
button{font:inherit}
img{display:block;max-width:100%;object-fit:contain;object-position:center}
.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--rice);color:var(--bean-deep);padding:10px 14px;border-radius:8px;border:1px solid var(--border-strong)}
.skip-link:focus{top:10px}
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;background:var(--bean-light);box-shadow:0 1px 0 var(--border)}
.header-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.sprout-line{height:22px;background:var(--bean-deep);color:var(--rice);font-size:12px}
.sprout-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.plain-trigger{border:0;background:transparent;color:var(--rice);padding:0 4px;min-height:22px;cursor:pointer}
.pod-bar{height:56px;background:var(--bean-light);border-bottom:1px solid var(--border)}
.pod-bar-inner{height:56px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.brand-link{justify-self:start;min-height:44px;display:flex;align-items:center;max-width:210px}.brand-logo,.footer-logo,.drawer-logo{height:26px;width:auto}.brand-text{font-size:16px;font-weight:800;color:var(--title)}
.app-entry{justify-self:center;min-height:44px;display:flex;align-items:center;padding:0 14px;border:1px solid var(--border-strong);border-radius:9px;background:var(--rice);color:var(--bean-deep);font-weight:700}
.pod-menu-open{justify-self:end;min-width:72px;height:44px;border:0;border-radius:9px;background:linear-gradient(135deg,#8A5A22 0%,#5A3C16 100%);color:var(--rice);font-size:14px;cursor:pointer}
.ridge-tabs{height:38px;background:var(--rice);border-bottom:1px solid var(--border);font-size:13px}.ridge-tabs-inner{height:38px;display:flex;align-items:center;justify-content:space-between}.ridge-left,.ridge-right{display:flex;gap:8px}.ridge-tabs a{height:30px;min-width:58px;padding:0 12px;border-radius:7px;display:flex;align-items:center;justify-content:center;color:var(--bean-deep)}.ridge-tabs a.is-active{background:var(--bean-deep);color:var(--rice)}
.site-main{padding-top:116px;min-height:60vh}.page-shell{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:34px 0 56px}.page-hero{margin-bottom:24px}.eyebrow{font-size:13px;color:var(--sprout);font-weight:800;letter-spacing:.08em}.page-hero h1,.home-intro h1{font-size:24px;line-height:1.3;color:var(--title);margin:8px 0 12px}.page-hero p,.home-intro p{max-width:780px;margin:0;color:var(--muted)}
h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}h3{font-size:16px;line-height:1.5;color:var(--title);margin:0 0 8px}p{margin:0 0 14px}.section-block{margin-top:28px}.surface{background:var(--rice);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow)}
.primary-btn,.secondary-btn{height:42px;min-width:118px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;font-weight:700;font-size:14px;white-space:nowrap}.primary-btn{background:linear-gradient(135deg,#8A5A22 0%,#5A3C16 100%);color:var(--rice)}.secondary-btn{background:var(--rice);border:1px solid var(--shell);color:var(--bean-deep)}a:hover,.primary-btn:hover,.secondary-btn:hover{text-decoration:underline;text-underline-offset:3px}a:focus-visible,button:focus-visible{outline:3px solid rgba(106,122,56,.45);outline-offset:3px}
.home-intro{padding:34px 0 22px}.home-intro .lead{font-size:20px;font-weight:800;color:var(--bean-deep);margin-bottom:8px}.home-intro .primary-btn{margin-top:6px}.image-slot{background:var(--secondary);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}.banner-slot{height:200px}.banner-slot img{width:100%;height:100%}.grid-four{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.feature-tile{padding:16px}.feature-tile .image-slot{height:140px;margin-bottom:14px}.feature-tile .image-slot img{width:100%;height:100%}.feature-tile p{color:var(--muted)}
.longread{padding:20px}.longread .image-slot{height:180px;margin:16px 0}.longread .image-slot img{width:100%;height:100%}.marker{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;background:var(--layer);color:var(--bean-deep);font-weight:800;margin:6px 0 8px}
.timeline{position:relative;padding:22px 22px 10px 42px}.timeline:before{content:"";position:absolute;left:22px;top:28px;bottom:20px;width:2px;background:var(--border-strong)}.timeline-item{position:relative;padding:0 0 20px}.timeline-item:before{content:"";position:absolute;left:-27px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--sprout);border:3px solid var(--rice)}.timeline-item p{color:var(--muted);margin-bottom:0}
.split-note{display:grid;grid-template-columns:1fr 1fr;gap:16px}.note-pane{padding:20px}.note-pane ul,.memo-list,.method-list{margin:0;padding-left:20px}.note-pane li,.memo-list li,.method-list li{margin:8px 0}.theme-strips{display:grid;gap:10px}.theme-strip{display:grid;grid-template-columns:140px 1fr auto;gap:18px;align-items:center;padding:16px 18px;background:var(--rice);border:1px solid var(--border);border-radius:10px}.theme-strip .status{display:inline-flex;align-items:center;justify-content:center;min-height:30px;padding:0 10px;border-radius:999px;background:var(--layer);color:var(--bean-deep);font-size:13px;font-weight:800}.theme-strip p{margin:0;color:var(--muted)}
.app-showcase{display:grid;grid-template-columns:minmax(260px,360px) 1fr;gap:28px;align-items:center;padding:20px}.app-visual .image-slot{height:340px}.app-visual .image-slot img{width:100%;height:100%}.app-icon-row{display:flex;gap:12px;align-items:center;margin-bottom:12px}.app-icon-row img{width:48px;height:48px}.bullet-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.bullet-card{padding:16px;background:var(--secondary);border:1px solid var(--border);border-radius:9px}.bullet-card p{margin:0;color:var(--muted)}
.faq-mini{display:grid;gap:10px}.faq-mini details,.faq-list details{background:var(--rice);border:1px solid var(--border);border-radius:9px;padding:14px 16px}.faq-mini summary,.faq-list summary{cursor:pointer;color:var(--title);font-weight:800}.faq-mini p,.faq-list p{margin:10px 0 0;color:var(--muted)}
.observation-directory{display:grid;grid-template-columns:220px 1fr;gap:18px}.obs-index{align-self:start;position:sticky;top:132px;padding:18px}.obs-index a{display:block;padding:10px 0;border-bottom:1px solid var(--border);font-weight:700}.obs-content{display:grid;gap:16px}.obs-entry{padding:20px}.obs-entry p{color:var(--muted)}
.quad-scenes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.scene-card{padding:20px;min-height:220px}.scene-card p{color:var(--muted)}
.journal-split{display:grid;grid-template-columns:1fr 1fr;gap:18px}.journal-column{padding:20px}.journal-column article+article{border-top:1px solid var(--border);padding-top:18px;margin-top:18px}
.memo-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px}.memo-section{padding:20px}.memo-section.full{grid-column:1/-1}.memo-check{list-style:none;padding:0;margin:0}.memo-check li{padding:12px 0;border-bottom:1px dashed var(--border);display:flex;gap:10px}.memo-check li:before{content:"✓";color:var(--sprout);font-weight:900}
.method-steps{display:grid;gap:14px}.method-step{padding:20px;display:grid;grid-template-columns:120px 1fr;gap:18px}.method-step .method-label{font-weight:900;color:var(--bean-deep)}
.topic-list{display:grid;gap:14px}.topic-item{padding:20px;display:grid;grid-template-columns:170px 1fr;gap:20px}.topic-item p{color:var(--muted)}
.product-explain{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.product-main,.product-side{padding:20px}.product-side .image-slot{height:300px;margin-bottom:14px}.product-side .image-slot img{width:100%;height:100%}.product-list{display:grid;gap:12px}.product-list article{padding:15px;background:var(--secondary);border:1px solid var(--border);border-radius:9px}
.policy-layout{display:grid;grid-template-columns:220px 1fr;gap:18px}.policy-nav{padding:18px;align-self:start;position:sticky;top:132px}.policy-nav a{display:block;padding:9px 0;border-bottom:1px solid var(--border)}.policy-content{padding:20px}.policy-content section+section{border-top:1px solid var(--border);padding-top:22px;margin-top:22px}
.help-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.help-card{padding:20px}.help-card ul{margin:8px 0 0;padding-left:20px}
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.contact-card{padding:20px}.contact-card p{color:var(--muted)}
.about-statement{padding:24px}.about-band{display:grid;grid-template-columns:180px 1fr;gap:22px;padding:20px 0;border-top:1px solid var(--border)}.about-band:first-of-type{border-top:0}.about-band p{color:var(--muted)}
.install-path{display:grid;gap:14px;counter-reset:step}.install-step{padding:20px 20px 20px 72px;position:relative}.install-step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--bean-deep);color:var(--rice);font-weight:900}
.site-footer{background:#2E220E;color:var(--bean-light);border-top:1px solid rgba(243,230,200,.22)}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:32px 0 80px}.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:24px}.footer-brand strong{display:block}.footer-brand span{display:block;font-size:12px;color:#E4D2A8}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-groups h2{font-size:13px;color:var(--rice);margin-bottom:8px}.footer-groups a{display:block;font-size:13px;padding:4px 0;color:var(--bean-light)}.footer-note,.footer-copy{font-size:13px;color:#E4D2A8}.footer-note{margin-top:22px;border-top:1px solid rgba(243,230,200,.18);padding-top:18px}.footer-copy{margin-bottom:0}
.ui-overlay{position:fixed;inset:0;z-index:200;background:rgba(46,34,14,.42);opacity:0;pointer-events:none;transition:opacity .2s}.ui-overlay.is-visible{opacity:1;pointer-events:auto}.pod-drawer{position:fixed;z-index:220;top:0;right:0;width:min(380px,88vw);height:100dvh;background:var(--rice);box-shadow:-16px 0 40px rgba(46,34,14,.18);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .24s,visibility .24s}.pod-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:72px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;gap:10px;align-items:center;font-weight:900;color:var(--title)}.drawer-close,.search-close{height:40px;padding:0 14px;border-radius:8px;border:1px solid var(--shell);background:var(--rice);color:var(--bean-deep);cursor:pointer}.drawer-scroll{height:calc(100dvh - 72px);overflow-y:auto;padding:16px}.drawer-scroll section+section{margin-top:18px}.drawer-scroll h2{font-size:13px;color:var(--sprout);margin-bottom:6px}.drawer-scroll a{display:grid;grid-template-columns:92px 1fr;gap:10px;padding:11px 0;border-bottom:1px solid var(--border)}.drawer-scroll strong{color:var(--title)}.drawer-scroll span{font-size:13px;color:var(--muted)}
.search-layer{position:fixed;z-index:230;top:78px;left:0;right:0;visibility:hidden;pointer-events:none;transform:translateY(-20px);opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:12px auto;background:var(--rice);border:1px solid var(--border-strong);border-radius:12px;box-shadow:var(--shadow);padding:20px}.search-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.search-head h2{margin:0}.search-card p{color:var(--muted)}.search-presets{display:flex;flex-wrap:wrap;gap:10px}.search-presets a{min-height:40px;padding:0 14px;display:flex;align-items:center;border-radius:999px;background:var(--secondary);border:1px solid var(--border);font-weight:700}
.mobile-bottom{display:none}
@media (max-width:760px){
  .ridge-tabs{display:none}.site-main{padding-top:78px}.header-inner{width:calc(100% - 32px)}.pod-bar-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-link{min-width:0}.brand-logo{max-width:120px}.brand-text{font-size:16px;white-space:nowrap}.app-entry{padding:0 10px;font-size:13px}.pod-menu-open{min-width:60px}.page-shell{padding:24px 0 70px}.grid-four,.split-note,.journal-split,.memo-wrap,.help-cards,.contact-grid,.quad-scenes{grid-template-columns:1fr}.theme-strip{grid-template-columns:1fr;gap:8px}.app-showcase,.product-explain{grid-template-columns:1fr}.app-showcase{padding:16px}.bullet-grid{grid-template-columns:1fr}.observation-directory,.policy-layout{grid-template-columns:1fr}.obs-index,.policy-nav{position:static}.method-step,.topic-item,.about-band{grid-template-columns:1fr;gap:8px}.drawer-scroll a{grid-template-columns:86px 1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}
  .search-layer{top:0;bottom:0;background:var(--bean-deep)}.search-card{width:100%;height:100dvh;margin:0;border:0;border-radius:0;background:var(--bean-deep);color:var(--rice);padding:24px 16px}.search-head h2,.search-card p{color:var(--rice)}.search-close{background:var(--rice)}.search-presets a{background:var(--rice);color:var(--bean-deep);border-color:rgba(255,248,232,.45)}
  .mobile-bottom{position:fixed;z-index:150;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(--rice);border-top:1px solid var(--border-strong)}.mobile-bottom a{height:48px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--bean-deep)}.mobile-bottom a.is-active{background:var(--bean-deep);color:var(--rice)}.footer-inner{padding-bottom:90px}.memo-section.full{grid-column:auto}
}
@media (max-width:460px){.sprout-line-inner{font-size:11px}.sprout-line-inner span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.page-hero h1,.home-intro h1{font-size:24px}.footer-groups{grid-template-columns:1fr 1fr}.banner-slot{height:180px}}
.slot-160{height:160px}
.slot-220{height:220px}
.grade-stripes{display:grid;gap:14px}.grade-row{display:grid;grid-template-columns:150px 1fr;gap:22px;padding:20px}.grade-label{color:var(--bean-deep);font-weight:900;font-size:16px;border-right:1px solid var(--border);padding-right:18px}.grade-row p:last-child{margin-bottom:0}
.privacy-grid{display:block}.privacy-sections{display:grid;grid-template-columns:1fr 1fr;gap:16px}.privacy-card{padding:20px}.privacy-card p:last-child{margin-bottom:0}.privacy-wide{grid-column:1/-1}
.cabinet-list{display:grid;gap:12px}.cabinet-row{display:grid;grid-template-columns:160px 1fr 90px;gap:18px;align-items:center;padding:18px;border-left:5px solid var(--sprout)}.cabinet-row p{margin:0;color:var(--muted)}.cabinet-tag{justify-self:end;font-size:13px;font-weight:800;color:var(--bean-deep);background:var(--layer);padding:5px 9px;border-radius:999px}
@media (max-width:760px){.grade-row,.cabinet-row{grid-template-columns:1fr}.grade-label{border-right:0;border-bottom:1px solid var(--border);padding:0 0 8px}.privacy-sections{grid-template-columns:1fr}.privacy-wide{grid-column:auto}.cabinet-tag{justify-self:start}}
.section-tight{margin-top:12px}