:root{color-scheme:light;--ink:#14221d;--muted:#62716b;--line:#dce4df;--surface:#fff;--wash:#f3f7f4;--accent:#176b50;--accent-dark:#0d4937;--warning:#9b5c16}*{box-sizing:border-box}body{margin:0;background:linear-gradient(145deg,#edf4ef 0,#fff 52%,#f5f1e9 100%);color:var(--ink);font-family:Inter,"Noto Sans TC",system-ui,sans-serif;min-height:100vh}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,5vw,72px);background:rgba(255,255,255,.88);border-bottom:1px solid rgba(20,34,29,.09);backdrop-filter:blur(16px);position:sticky;top:0;z-index:2}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand img{width:42px;height:42px;border-radius:12px;object-fit:cover}.brand span{display:grid}.brand strong{font-size:18px;letter-spacing:.02em}.brand small{font-size:12px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase}.account-link{font-size:14px;color:var(--accent-dark);text-decoration:none;border:1px solid var(--line);padding:10px 14px;border-radius:999px;background:#fff}main{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:72px 0 80px}.hero{max-width:780px;margin-bottom:54px}.eyebrow{margin:0 0 12px;color:var(--accent);font-size:12px;font-weight:750;letter-spacing:.16em}.hero h1{font-family:Georgia,"Noto Serif TC",serif;font-size:clamp(36px,6vw,68px);line-height:1.08;letter-spacing:-.035em;margin:0 0 20px}.summary{font-size:17px;color:var(--muted);line-height:1.7}.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.section-heading h2{font-size:26px;margin:0}.section-heading button{border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 15px;border-radius:10px;cursor:pointer}.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.module-card{min-height:240px;background:rgba(255,255,255,.92);border:1px solid rgba(20,34,29,.1);border-radius:22px;padding:28px;box-shadow:0 18px 50px rgba(16,45,35,.07);display:flex;flex-direction:column;position:relative;overflow:hidden}.module-card:before{content:"";position:absolute;width:120px;height:120px;border-radius:50%;right:-35px;top:-35px;background:var(--module-wash,#e2f1ea)}.module-code{font-size:12px;letter-spacing:.16em;color:var(--accent);font-weight:750}.module-card h3{font-family:Georgia,"Noto Serif TC",serif;font-size:30px;margin:18px 0 10px}.module-card p{color:var(--muted);line-height:1.65;margin:0}.module-meta{margin-top:auto;padding-top:24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.status{font-size:13px;color:var(--muted)}.enter{background:var(--accent);color:#fff;text-decoration:none;border-radius:11px;padding:11px 17px;font-weight:700}.module-card.unavailable{box-shadow:none;background:rgba(255,255,255,.58)}.module-card.unavailable .enter{background:#dce3df;color:#68736e;pointer-events:none}.message{min-height:24px;color:#8e3b2e;margin-bottom:10px}.login-state{background:#fff;border:1px solid var(--line);border-radius:22px;padding:36px;text-align:center}.login-state h2{margin-top:0}.login-state p{color:var(--muted)}.primary-action{display:inline-block;margin-top:10px;background:var(--accent);color:#fff;text-decoration:none;border-radius:11px;padding:12px 18px;font-weight:700}footer{text-align:center;color:var(--muted);font-size:13px;padding:0 20px 30px}@media(max-width:720px){.topbar{height:68px;padding:0 18px}.account-link{font-size:0;padding:10px}.account-link:after{content:"工作台";font-size:13px}main{width:min(100% - 28px,1120px);padding:48px 0 64px}.hero{margin-bottom:38px}.module-grid{grid-template-columns:1fr}.module-card{min-height:220px}.section-heading{align-items:center}}.brand img{width:56px;height:42px;border-radius:10px;object-fit:contain;object-position:center;background:#17191d}