:root{--bg:#f3f6f8;--bg-tint:#e8f1f5;--surface:#ffffff;--text:#1b2834;--muted:#5d6f7d;--accent:#0b6e99;--accent-hover:#095a7e;--border:#d7e1e8;--danger:#b42318;--ok:#17663a;--warn:#9a6700;--radius:14px}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%}body{font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea{font:inherit}.shell{max-width:1080px;margin:0 auto;padding:24px 20px 64px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:var(--surface);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:baseline;gap:10px;color:inherit;text-decoration:none}.brand strong{font-size:18px;letter-spacing:.04em}.brand span{color:var(--muted);font-size:13px}.nav-actions{display:flex;gap:12px;color:var(--muted);font-size:14px}.btn,.nav-actions{align-items:center}.btn{display:inline-flex;justify-content:center;gap:8px;border:1px solid transparent;background:var(--accent);color:#fff;border-radius:10px;padding:9px 14px;cursor:pointer}.btn,.btn:hover{text-decoration:none}.btn:hover{background:var(--accent-hover)}.btn.secondary{background:var(--surface);color:var(--text);border-color:var(--border)}.btn.danger{background:var(--danger)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-row{display:flex;flex-wrap:wrap;gap:8px}.hero{display:grid;grid-template-columns:1.2fr .8fr;grid-gap:28px;gap:28px;padding:48px 0 24px}.hero h1{font-size:36px;line-height:1.2;margin:0 0 12px}.hero p{color:var(--muted);margin:0 0 20px;font-size:16px}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:16px;gap:16px}.card-link{display:block;color:inherit;text-decoration:none}.card-link:hover .panel{border-color:var(--accent)}.muted{color:var(--muted)}.small{font-size:13px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;color:var(--muted)}.field input,.field textarea{border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:#fff}.error{color:var(--danger);margin:8px 0}.error,.warn{font-size:13px}.warn{color:var(--warn)}.ok{color:var(--ok)}.dropzone{border:1px dashed var(--border);border-radius:12px;padding:22px;text-align:center;background:var(--bg-tint);cursor:pointer}.dropzone.active{border-color:var(--accent)}.progress{height:8px;background:var(--border);border-radius:99px;overflow:hidden;margin-top:10px}.progress>span{display:block;height:100%;background:var(--accent)}.split{display:grid;grid-template-columns:320px 1fr;grid-gap:20px;gap:20px}.qr{width:220px;height:220px;background:#fff;border:1px solid var(--border);border-radius:12px}.pill{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;color:var(--muted)}.landing,.pill{background:var(--bg-tint)}.landing{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.landing-card{width:min(420px,100%);background:#fff;border:1px solid var(--border);border-radius:20px;padding:28px 24px 32px;text-align:center}.landing-icon{width:84px;height:84px;border-radius:20px;object-fit:cover;margin:0 auto 12px;display:block;background:var(--bg-tint)}.auth-wrap{min-height:calc(100vh - 64px);display:grid;place-items:center;padding:24px}.auth-card{width:min(420px,100%)}@media (max-width:800px){.hero,.split{grid-template-columns:1fr}.hero h1{font-size:28px}}