:root{--bg:#F7EAB4;--bg2:#EBD98B;--card:#FFF9E3;--soft:#F3E7B9;--ink:#352A08;--text:#493B10;--muted:#786219;--muted2:#95812B;--accent:#876711;--brown:#302608;--green:#607A3D;--border:rgba(53,42,8,.15);--strong:rgba(135,103,17,.42);--shadow:0 12px 30px rgba(53,42,8,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden;padding-bottom:0}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(960px,calc(100% - 32px));margin:0 auto}.topline{position:fixed;left:0;right:0;top:0;height:20px;background:var(--brown);color:var(--bg);z-index:50;font-size:12px}.top-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:var(--bg);padding:0 4px;cursor:pointer}.brandbar{position:fixed;left:0;right:0;top:20px;height:56px;background:var(--bg);border-bottom:1px solid var(--strong);z-index:49}.brand-inner{height:56px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;height:44px;font-weight:800;font-size:16px;color:var(--ink)}.brand-logo{height:24px;max-width:190px;object-fit:contain}.brand-actions{display:flex;gap:8px;align-items:center}.small-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;border:1px solid var(--strong);border-radius:10px;padding:0 14px;background:var(--card);color:var(--ink);font-size:14px}.menu-button{cursor:pointer}.desktop-nav{position:fixed;left:0;right:0;top:76px;background:var(--bg);z-index:48;border-bottom:1px solid var(--border)}.nav-grid{padding:0}.nav-row{display:grid;grid-template-columns:repeat(4,1fr)}.nav-item{height:36px;display:flex;align-items:center;justify-content:center;border-right:1px solid var(--border);border-bottom:1px solid var(--border);font-size:13px;color:var(--ink)}.nav-item:first-child{border-left:1px solid var(--border)}.nav-item.active{background:var(--accent);color:#FFF8DC}main{padding-top:164px}.hero,.page-head{padding:34px 0 22px}.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--accent);font-weight:800}.hero h1,.page-head h1{margin:8px 0 10px;font-size:24px;line-height:1.3;color:var(--ink)}.lead{max-width:760px;margin:0;color:var(--text)}.intro-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.intro-links a{border:1px solid var(--strong);background:rgba(255,249,227,.65);padding:7px 12px;border-radius:999px;font-size:13px}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.btn{min-height:42px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;background:linear-gradient(135deg,#F5DF80 0%,#987516 100%);color:var(--brown);border:1px solid rgba(53,42,8,.16)}.btn.secondary{background:var(--brown);color:var(--bg)}.btn:hover,.small-link:hover,.menu-button:hover,.nav-item:hover,.intro-links a:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible{outline:3px solid var(--green);outline-offset:2px}.section{padding:28px 0}.section h2{font-size:20px;line-height:1.35;color:var(--ink);margin:0 0 12px}.section h3{font-size:16px;line-height:1.4;color:var(--ink);margin:0 0 8px}.section p{margin:0 0 12px}.surface{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:22px}.image-slot{background:var(--soft);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:12px;min-height:110px}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.portrait-slot{max-width:420px;height:280px;margin:18px auto}.app-slot{height:320px}.banner-slot{height:200px}.timeline{position:relative;margin-top:18px}.timeline:before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:var(--strong)}.timeline-item{position:relative;padding:0 0 22px 38px}.timeline-item:before{content:"";position:absolute;left:5px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--bg)}.timeline-item:last-child{padding-bottom:0}.fold-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}.fold-card{background:var(--card);border:1px solid var(--border);padding:22px;border-radius:12px}.fold-card:nth-child(2){margin-top:38px;background:var(--soft)}.topic-stack{display:grid;grid-template-columns:1.15fr .85fr;gap:14px}.topic-card{padding:20px;border-radius:12px;border:1px solid var(--border);background:var(--card)}.topic-card:nth-child(3n+2){background:var(--soft)}.topic-card:nth-child(3n){grid-column:1/-1}.week-steps{display:grid;gap:14px}.week-step{background:var(--card);border-left:5px solid var(--accent);padding:18px 20px;border-radius:0 12px 12px 0}.week-step:nth-child(2){margin-left:6%}.week-step:nth-child(3){margin-left:12%}.status-list{display:grid;gap:12px}.status-row{display:grid;grid-template-columns:110px 1fr;gap:12px;align-items:stretch}.status-label{background:var(--accent);color:#FFF8DC;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800}.status-text{background:var(--card);border:1px solid var(--border);padding:16px;border-radius:10px}.memo-list{display:grid;gap:12px}.memo{background:linear-gradient(90deg,var(--card),var(--soft));border:1px solid var(--border);padding:18px;border-radius:12px}.guide-flow{display:grid;gap:16px}.guide-block{background:var(--card);border:1px solid var(--border);padding:20px;border-radius:12px}.guide-block:nth-child(even){margin-left:8%;background:var(--soft)}.collection-list{display:grid;gap:16px}.collection-item{background:var(--card);border:1px solid var(--border);padding:20px;border-radius:12px}.collection-item:nth-child(even){margin-left:8%}.library-index{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.library-index span{padding:8px 12px;border-radius:999px;background:var(--brown);color:var(--bg);font-size:13px}.library-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.library-card{background:var(--card);border:1px solid var(--border);padding:18px;border-radius:12px}.app-band{display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:center;background:var(--brown);color:var(--bg);border-radius:12px;padding:24px}.app-band h2,.app-band h3{color:var(--bg)}.app-band .image-slot{background:#F3E6B0}.term-list{display:grid;gap:14px}.term{background:var(--card);border:1px solid var(--border);padding:20px;border-radius:12px}.faq-list{display:grid;gap:12px}.faq-item{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.faq-item h2{font-size:16px;margin-bottom:8px}.cta-band{background:var(--accent);color:#FFF8DC;border-radius:12px;padding:22px}.cta-band h2{color:#FFF8DC}.site-footer{margin-top:36px;background:#2B2208;color:#F7EAB4;border-top:1px solid rgba(247,234,180,.35);padding:28px 0 74px;font-size:13px}.footer-brandline{display:flex;align-items:center;gap:12px}.footer-logo{height:24px;max-width:180px;object-fit:contain}.footer-brandline div{display:flex;flex-direction:column}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}.footer-groups h2{font-size:14px;color:#F7EAB4;margin:0 0 8px}.footer-groups a{display:block;padding:3px 0;color:#F7EAB4}.footer-note{border-top:1px solid rgba(247,234,180,.2);margin-top:22px;padding-top:18px;color:#EBD98B}.overlay{position:fixed;inset:0;background:rgba(48,38,8,.48);z-index:70;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.overlay.open{visibility:visible;pointer-events:auto;opacity:1}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--card);height:46vh;min-height:330px;transform:translateY(102%);visibility:hidden;pointer-events:none;transition:.25s;border-radius:16px 16px 0 0;overflow:auto}.sheet.open{transform:translateY(0);visibility:visible;pointer-events:auto}.sheet-head{position:sticky;top:0;background:var(--card);display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);z-index:2}.sheet-brand{display:flex;align-items:center;gap:8px}.sheet-brand img{height:24px;max-width:140px;object-fit:contain}.close-button{min-height:44px;padding:0 14px;border:1px solid var(--strong);background:var(--soft);color:var(--ink);border-radius:10px;cursor:pointer}.sheet-groups{width:min(960px,calc(100% - 32px));margin:0 auto;padding:16px 0 28px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.sheet-groups h2{font-size:14px;margin:0 0 8px;color:var(--ink)}.sheet-groups a{display:block;padding:8px 0;border-bottom:1px solid var(--border)}.sheet-groups b{display:block;color:var(--ink)}.sheet-groups span{display:block;color:var(--muted);font-size:12px;line-height:1.45}.search-panel{position:fixed;left:0;right:0;top:76px;z-index:75;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.open{visibility:visible;pointer-events:auto;opacity:1}.search-card{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:0 0 14px 14px;padding:20px}.search-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.search-head p{margin:2px 0 0;color:var(--muted)}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-links a{padding:9px 12px;border-radius:9px;background:var(--soft);border:1px solid var(--border)}.mobile-bottom{display:none}
@media(max-width:700px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.desktop-nav{display:none}.topline{height:20px}.brandbar{top:20px}.brand-actions{gap:6px}.small-link,.menu-button{padding:0 10px}.brand-logo{max-width:130px}main{padding-top:88px}.hero,.page-head{padding-top:24px}.fold-grid,.topic-stack,.library-grid,.app-band{grid-template-columns:1fr}.fold-card:nth-child(2),.week-step:nth-child(2),.week-step:nth-child(3),.guide-block:nth-child(even),.collection-item:nth-child(even){margin-left:0}.status-row{grid-template-columns:88px 1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}.site-footer{padding-bottom:86px}.sheet{height:58vh}.sheet-groups{grid-template-columns:1fr 1fr}.search-panel{top:76px;bottom:0;background:var(--brown);padding-top:12px}.search-card{height:100%;border-radius:14px 14px 0 0;overflow:auto}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:60;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(--card);border-top:1px solid var(--strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px;color:var(--ink)}.mobile-bottom a.active{background:var(--accent);color:#FFF8DC}.app-band{padding:18px}.app-slot{height:280px}.banner-slot{height:180px}}