:root{
    --bg:#F7FAF2;--deep:#E4F0D4;--panel:#FFFEF8;--dark:#2E4A28;--text:#3A4A34;
    --muted:#5A6A52;--soft:#7A8A72;--green:#6FA83A;--leaf:#3D7A32;--pale:#C5E08A;
    --yellow:#F4E8A8;--border:rgba(46,74,40,.14);--shadow:0 14px 34px rgba(46,74,40,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}
body.locked{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit}
button,a{touch-action:manipulation}
button:focus-visible,a:focus-visible{outline:3px solid var(--yellow);outline-offset:3px}
.shell{width:min(1140px,calc(100% - 32px));margin-inline:auto}
.top-wrap{position:fixed;inset:0 0 auto 0;z-index:40}
.green-line{height:30px;background:var(--leaf);color:var(--panel);font-size:13px}
.line-inner,.stage-inner{height:100%;display:flex;align-items:center;justify-content:space-between}
.plain-button,.drawer-open,.drawer-close,.search-close{border:0;background:transparent;color:inherit;cursor:pointer;min-height:44px}
.green-stage{height:54px;background:var(--panel);border-bottom:1px solid var(--green)}
.brand{display:flex;align-items:center;min-height:44px;color:var(--leaf);font-weight:800;font-size:20px}
.brand img,.drawer-brand img,.footer-brand img{height:26px;width:auto;object-fit:contain}
.stage-actions{display:flex;align-items:center;gap:10px}
.drawer-open,.app-link{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border-radius:10px}
.drawer-open{border:1px solid var(--green);color:var(--leaf);background:var(--panel)}
.app-link{background:var(--leaf);color:var(--panel)}
.green-nav{height:38px;background:var(--pale)}
.green-nav-inner{height:100%;display:grid;grid-template-columns:repeat(5,1fr)}
.green-nav a{display:flex;align-items:center;justify-content:center;color:var(--dark);border-right:1px solid rgba(255,254,248,.75);font-weight:700}
.green-nav a:last-child{border-right:0}
.green-nav a.active{background:var(--leaf);color:var(--panel)}
.site-main{padding-top:142px}
.site-overlay{position:fixed;inset:0;background:rgba(29,43,25,.36);z-index:48;opacity:0;pointer-events:none;transition:.2s}
.site-overlay.is-open{opacity:1;pointer-events:auto}
.green-drawer{position:fixed;z-index:50;top:84px;right:max(16px,calc((100vw - 1140px)/2));width:360px;max-height:calc(100vh - 100px);overflow:auto;background:var(--panel);border-top:2px solid var(--leaf);border-radius:0 0 14px 14px;box-shadow:var(--shadow);visibility:hidden;pointer-events:none;transform:translateY(-14px);opacity:0;transition:.2s}
.green-drawer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}
.drawer-head{position:sticky;top:0;display:flex;justify-content:space-between;align-items:center;padding:12px 14px;background:var(--panel);border-bottom:1px solid var(--border);z-index:2}
.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--dark)}
.drawer-groups{padding:8px 14px 18px}
.drawer-groups h2{font-size:14px;margin:10px 0 4px;color:var(--leaf)}
.drawer-groups a{display:block;padding:8px 0;border-bottom:1px solid var(--border)}
.drawer-groups b{display:block;color:var(--dark)}
.drawer-groups span{display:block;font-size:13px;color:var(--muted)}
.search-panel{position:fixed;z-index:50;top:84px;right:max(16px,calc((100vw - 1140px)/2));width:430px;background:var(--panel);border:1px solid var(--border);border-top:3px solid var(--leaf);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:16px;visibility:hidden;pointer-events:none;transform:translateY(-12px);opacity:0;transition:.2s}
.search-panel.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}
.search-head{display:flex;align-items:center;justify-content:space-between;color:var(--dark)}
.search-look{margin:12px 0;background:var(--deep);padding:12px 14px;border-radius:12px;color:var(--dark)}
.search-links{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.search-links a{padding:10px 8px;text-align:center;border:1px solid var(--green);border-radius:10px;color:var(--leaf);min-height:44px}
.hero,.page-hero{padding:26px 0 20px}
.hero-cover,.image-slot{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--deep),var(--pale));border:1px solid var(--border);border-radius:16px;overflow:hidden}
.hero-cover{min-height:180px;max-height:220px}
.hero-cover img{max-height:220px;width:100%;object-fit:contain;object-position:center}
.fallback-mark{color:var(--leaf);font-weight:900;font-size:28px;padding:48px 20px;text-align:center}
.hero-copy{text-align:center;max-width:820px;margin:22px auto 0}
.eyebrow{display:inline-block;color:var(--leaf);font-weight:800;letter-spacing:.08em}
h1,h2,h3{line-height:1.35;color:var(--dark)}
h1{font-size:clamp(28px,4vw,32px);margin:8px 0 14px}
h2{font-size:24px;margin:0 0 12px}
h3{font-size:18px;margin:0 0 8px}
.lead{color:var(--muted);font-size:17px}
.actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:18px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:10px;background:var(--leaf);color:var(--panel);font-weight:800}
.button.secondary{background:var(--panel);color:var(--leaf);border:1px solid var(--green)}
.section{padding:28px 0}
.section.alt{background:var(--deep)}
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card,.content-card,.status-card,.note-box{background:var(--panel);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}
.card{overflow:hidden}
.card-media{height:160px;display:flex;align-items:center;justify-content:center;background:var(--bg);border-bottom:1px solid var(--border)}
.card-media img{width:100%;height:100%;object-fit:contain}
.card-body{padding:16px}
.card p{margin:0;color:var(--muted)}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}
.split.reverse{grid-template-columns:.9fr 1.1fr}
.image-slot{min-height:190px}
.image-slot img{width:100%;max-height:320px;object-fit:contain;object-position:center}
.section-copy p{margin:0 0 12px}
.section-link{display:inline-flex;margin-top:8px;color:var(--leaf);font-weight:800}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.status-card{padding:18px;border-top:4px solid var(--green)}
.text-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.content-card{padding:18px}
.page-hero .lead{max-width:800px}
.page-content{padding:8px 0 36px}
.prose{max-width:900px}
.prose section{margin:0 0 18px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px}
.prose p{margin:0 0 12px}
.prose p:last-child{margin-bottom:0}
.topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0}
.topic-list article{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}
.topic-list h2{font-size:20px}
.app-showcase{display:grid;grid-template-columns:minmax(220px,360px) 1fr;gap:28px;align-items:center}
.app-art{display:flex;align-items:center;justify-content:center;background:var(--deep);border-radius:16px;min-height:330px;padding:18px}
.app-art img{max-height:420px;object-fit:contain}
.mark{width:64px;height:64px;object-fit:contain}
.faq-list details{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:10px}
.faq-list summary{cursor:pointer;font-weight:800;color:var(--dark)}
.faq-list p{margin:10px 0 0}
.site-footer{background:var(--dark);color:var(--deep);padding:34px 0 26px}
.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:22px}
.footer-brand strong{display:block;color:var(--panel);font-size:20px}
.footer-brand span{display:block;font-size:12px;color:var(--pale)}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.footer-grid h2{font-size:15px;color:var(--yellow)}
.footer-grid a{display:block;color:var(--panel);padding:3px 0}
.footer-note,.copyright{color:var(--deep);font-size:14px}
.footer-note{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,254,248,.16)}
.mobile-bottom{display:none}
@media (max-width:820px){
    .green-nav{display:none}
    .site-main{padding-top:84px}
    .green-line{height:30px}
    .cards-4,.status-grid,.text-grid,.topic-list{grid-template-columns:1fr 1fr}
    .split,.split.reverse,.app-showcase{grid-template-columns:1fr}
    .green-drawer{top:84px;left:16px;right:16px;width:auto;height:58vh;max-height:none}
    .search-panel{top:84px;left:16px;right:16px;width:auto}
    .footer-grid{grid-template-columns:1fr 1fr}
    .mobile-bottom{position:fixed;z-index:45;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--panel);border-top:1px solid var(--border)}
    .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;color:var(--dark);font-size:14px}
    .mobile-bottom a.active{background:var(--leaf);color:var(--panel)}
    body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}
}
@media (max-width:560px){
    .shell{width:min(100% - 32px,1140px)}
    .line-inner{font-size:12px}
    .stage-actions{gap:6px}
    .drawer-open,.app-link{padding:0 10px}
    .cards-4,.status-grid,.text-grid,.topic-list{grid-template-columns:1fr}
    .search-links{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
    .hero{padding-top:18px}
}