:root{
  --bean-light:#F3E6C8;--bean-deep:#5A3C16;--shell:#8A5A22;--sprout:#6A7A38;--rice:#FFF8E8;
  --deep-bg:#E4D2A8;--soft:#F7EDD4;--title:#3A2A12;--text:#4A3418;--muted:#7A5A28;--light-muted:#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:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.locked{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{color:inherit}
img{max-width:100%;display:block;object-fit:contain;object-position:center}
.shell{width:min(1080px,calc(100% - 32px));margin:0 auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:9999;background:var(--rice);color:var(--bean-deep);padding:10px 14px;border-radius:8px;border:1px solid var(--border-strong)}
.skip-link:focus{top:8px}
.site-header{position:fixed;inset:0 0 auto 0;z-index:1000;box-shadow:0 3px 14px rgba(58,42,18,.05)}
.sprout-line{height:22px;background:var(--bean-deep);color:var(--rice);font-size:12px}
.top-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.plain-button{border:0;background:transparent;color:var(--rice);padding:0 8px;min-height:22px;cursor:pointer}
.pod-bar{height:56px;background:var(--bean-light);border-bottom:1px solid var(--border-strong)}
.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}
.brand-logo,.footer-logo,.drawer-logo{height:26px;width:auto;max-width:180px;object-fit:contain}
.brand-text{font-weight:800;color:var(--bean-deep);font-size:16px}
.app-entry{justify-self:center;min-height:44px;display:inline-flex;align-items:center;padding:0 16px;border:1px solid var(--shell);border-radius:10px;background:var(--rice);color:var(--bean-deep);font-weight:700}
.drawer-open,.drawer-close,.search-close{min-height:44px;min-width:60px;border:1px solid var(--shell);border-radius:10px;background:var(--rice);color:var(--bean-deep);cursor:pointer;font-weight:700}
.drawer-open{justify-self:end}
.ridge-tabs{height:38px;background:var(--rice);border-bottom:1px solid var(--border)}
.ridge-tabs-inner{height:38px;display:flex;align-items:center;justify-content:space-between}
.ridge-group{display:flex;gap:8px;align-items:center}
.ridge-link{min-height:30px;display:inline-flex;align-items:center;padding:0 12px;border-radius:8px;color:var(--muted);font-size:13px}
.ridge-link.is-active{background:var(--bean-deep);color:var(--rice)}
.site-main{padding-top:116px;min-height:70vh}
.page-hero{padding:42px 0 28px;background:linear-gradient(180deg,var(--deep-bg),var(--bean-light))}
.page-hero .eyebrow{font-size:13px;color:var(--muted);margin:0 0 8px}
h1,h2,h3{color:var(--title);margin-top:0;letter-spacing:.01em}
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}
.lead{font-size:16px;max-width:780px;color:var(--text)}
.section{padding:34px 0}
.section-soft{background:var(--soft)}
.section-rice{background:var(--rice)}
.section-deep{background:var(--deep-bg)}
.kicker{font-size:13px;color:var(--sprout);font-weight:800;margin-bottom:8px}
.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:800;white-space:nowrap}
.primary-btn{background:linear-gradient(135deg,#8A5A22 0%,#5A3C16 100%);color:var(--rice);border:1px solid var(--bean-deep)}
.secondary-btn{background:var(--rice);color:var(--bean-deep);border:1px solid var(--shell)}
a:hover,.plain-button:hover,button:hover{filter:brightness(.97)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(106,122,56,.45);outline-offset:2px}
.media-slot{min-height:140px;background:linear-gradient(135deg,var(--soft),var(--rice));border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain}
.banner-slot{height:200px;background:var(--bean-light)}
.tall-slot{height:340px;background:var(--rice)}
.wide-slot{height:180px;background:var(--rice)}
.intro-panel{padding:46px 0 32px}
.intro-panel .lead{max-width:720px;margin-bottom:18px}
.intro-actions{display:flex;gap:12px;flex-wrap:wrap}
.quad-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.quad-card{background:var(--rice);border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.quad-card .media-slot{height:140px;margin-bottom:14px}
.quad-card p{margin-bottom:0}
.prose-card{background:var(--rice);border:1px solid var(--border);border-radius:12px;padding:24px;box-shadow:var(--shadow)}
.prose-card p:last-child{margin-bottom:0}
.prose-card .wide-slot{margin:16px 0}
.marker{display:inline-block;color:var(--sprout);font-weight:800;margin-right:8px}
.timeline{position:relative;margin:18px 0 0;padding-left:28px}
.timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--border-strong)}
.timeline-item{position:relative;background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:16px 18px;margin-bottom:14px}
.timeline-item:before{content:"";position:absolute;left:-26px;top:22px;width:12px;height:12px;border-radius:50%;background:var(--bean-deep);box-shadow:0 0 0 4px var(--bean-light)}
.timeline-item strong{display:block;color:var(--bean-deep);margin-bottom:4px}
.split-notes{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.note-panel{background:var(--rice);border:1px solid var(--border);border-radius:12px;padding:20px}
.note-list{margin:0;padding:0;list-style:none}
.note-list li{padding:10px 0;border-bottom:1px dashed var(--border)}
.note-list li:last-child{border-bottom:0}
.topic-bars{display:grid;gap:12px}
.topic-bar{display:grid;grid-template-columns:minmax(140px,.7fr) minmax(0,1.7fr) auto;gap:16px;align-items:center;background:var(--rice);border:1px solid var(--border);border-left:5px solid var(--shell);border-radius:10px;padding:14px 16px}
.status{font-size:12px;border:1px solid var(--border-strong);border-radius:999px;padding:5px 9px;color:var(--bean-deep);white-space:nowrap}
.app-showcase{display:grid;grid-template-columns:minmax(260px,.85fr) minmax(0,1.4fr);gap:28px;align-items:center}
.app-copy .icon-row{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.icon-slot{width:48px;height:48px;border-radius:12px;background:var(--soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;overflow:hidden}
.icon-slot img{width:48px;height:48px;object-fit:contain}
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.point-card{background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:18px}
.faq-mini{display:grid;gap:10px}
.faq-mini details,.faq-list details{background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.faq-mini summary,.faq-list summary{font-weight:800;color:var(--bean-deep);cursor:pointer}
.faq-mini p,.faq-list p{margin:10px 0 0}
.brand-story{background:var(--bean-deep);color:var(--rice);border-radius:14px;padding:26px}
.brand-story h2,.brand-story h3{color:var(--rice)}
.brand-story p{color:#FFF8E8}
.directory-list{display:grid;gap:14px}
.directory-item{display:grid;grid-template-columns:160px minmax(0,1fr);gap:18px;padding:18px 0;border-bottom:1px solid var(--border-strong)}
.directory-item:last-child{border-bottom:0}
.directory-item h2{margin:0}
.directory-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.tag{font-size:12px;padding:4px 8px;border:1px solid var(--border);border-radius:999px;background:var(--rice);color:var(--muted)}
.checklist{display:grid;gap:14px}
.check-row{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px;background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:16px}
.check-dot{width:24px;height:24px;border-radius:50%;background:var(--bean-deep);color:var(--rice);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.method-sections{display:grid;gap:18px}
.method-card{background:var(--rice);border:1px solid var(--border);border-radius:12px;padding:20px}
.method-card .method-label{font-size:12px;color:var(--sprout);font-weight:800}
.theme-list{display:grid;gap:12px}
.theme-row{background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:17px;display:grid;grid-template-columns:180px 1fr;gap:18px}
.product-panel{background:var(--rice);border:1px solid var(--border);border-radius:14px;padding:24px;box-shadow:var(--shadow)}
.product-features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}
.product-feature{border:1px solid var(--border);border-radius:10px;padding:16px;background:var(--soft)}
.term-sections{display:grid;gap:14px}
.term-block{background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:18px}
.help-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.help-card{background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:18px}
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.contact-card{background:var(--rice);border:1px solid var(--border);border-radius:10px;padding:18px}
.site-footer{background:#2E220E;color:var(--bean-light);padding:30px 0 calc(28px + env(safe-area-inset-bottom));font-size:13px;border-top:1px solid rgba(243,230,200,.24)}
.footer-head{padding-bottom:18px;border-bottom:1px solid rgba(243,230,200,.18)}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand strong{display:block;color:var(--rice);font-size:16px}
.footer-brand span{display:block;color:var(--bean-light);font-size:12px}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding:22px 0}
.footer-grid h2{font-size:13px;color:var(--rice);margin-bottom:8px}
.footer-grid a{display:block;color:var(--bean-light);padding:4px 0}
.footer-note{padding-top:16px;border-top:1px solid rgba(243,230,200,.18);color:var(--bean-light)}
.footer-note p:last-child{margin-bottom:0}
.overlay{position:fixed;inset:0;background:rgba(46,34,14,.38);z-index:1500;opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}
.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.pod-drawer{position:fixed;top:0;right:0;bottom:0;width:380px;max-width:88vw;background:var(--rice);z-index:1600;transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s ease;box-shadow:-18px 0 36px rgba(46,34,14,.16)}
.pod-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{height:72px;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bean-light)}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--bean-deep)}
.drawer-scroll{height:calc(100% - 72px);overflow-y:auto;padding:14px 16px 30px}
.drawer-section{margin-bottom:18px}
.drawer-section h2{font-size:13px;color:var(--sprout);margin-bottom:6px}
.drawer-section a{display:block;border-bottom:1px solid var(--border);padding:10px 0}
.drawer-section strong{display:block;color:var(--bean-deep)}
.drawer-section span{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:2px}
.search-layer{position:fixed;top:78px;left:0;right:0;z-index:1550;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:.2s ease}
.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}
.search-card{background:var(--rice);border:1px solid var(--border-strong);border-radius:0 0 14px 14px;padding:18px;box-shadow:var(--shadow)}
.search-top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.search-top strong{color:var(--bean-deep);font-size:18px}.search-top p{margin:2px 0 0;color:var(--muted)}
.search-presets{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.search-presets a{min-height:44px;display:inline-flex;align-items:center;padding:0 16px;background:var(--bean-light);border:1px solid var(--border);border-radius:10px;color:var(--bean-deep);font-weight:700}
.mobile-bottom{display:none}
@media (max-width:760px){
  .ridge-tabs{display:none}.site-main{padding-top:78px;padding-bottom:64px}.shell{width:min(100% - 32px,1080px)}
  .pod-bar-inner{grid-template-columns:minmax(0,1fr) auto auto}.app-entry{padding:0 12px}.drawer-open{min-width:58px}.brand-logo{max-width:120px}
  .intro-panel{padding:34px 0 26px}.page-hero{padding:32px 0 22px}
  .quad-grid,.split-notes,.point-grid,.product-features,.help-grid,.contact-grid{grid-template-columns:1fr}
  .topic-bar{grid-template-columns:1fr;gap:6px}.app-showcase{grid-template-columns:1fr}.directory-item{grid-template-columns:1fr;gap:8px}.theme-row{grid-template-columns:1fr;gap:6px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.site-footer{padding-bottom:calc(82px + env(safe-area-inset-bottom))}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:1200;display:grid;grid-template-columns:repeat(5,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--rice);border-top:1px solid var(--border-strong)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:12px;color:var(--muted)}.mobile-bottom a.is-active{background:var(--bean-deep);color:var(--rice)}
  .search-layer{inset:0;top:0;background:var(--bean-deep);color:var(--rice);transform:none}.search-layer.is-open{display:block}.search-card{width:100%;height:100%;border:0;border-radius:0;background:var(--bean-deep);color:var(--rice);padding:24px 16px}
  .search-top strong,.search-top 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)}
  .banner-slot{height:200px}.tall-slot{height:300px}.footer-grid{gap:12px}
}
@media (max-width:420px){.app-entry{font-size:13px;padding:0 10px}.drawer-open{font-size:13px}.brand-text{font-size:15px}.quad-card,.prose-card,.product-panel{padding:16px}}