:root{--bg: #f4f7f6;--surface: #ffffff;--ink: #15201d;--muted: #66736e;--line: #d8e2dd;--primary: #146c5c;--primary-weak: #e8f3ef;--accent: #a95634;--accent-weak: #fff1e9;--blue: #335f8a;--blue-weak: #eaf1f8;--danger: #a13d3d}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font-family:Avenir Next,PingFang SC,Microsoft YaHei,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}button{font:inherit}button:disabled{cursor:not-allowed;opacity:.62}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:#fffffff0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand{display:flex;align-items:center;gap:10px;min-width:0}.mark{display:grid;width:34px;height:34px;flex:0 0 34px;place-items:center;border-radius:8px;background:var(--primary);color:#fff;font-weight:800}.brand strong,.brand small{display:block}.brand small{color:var(--muted);font-size:12px}nav{display:flex;gap:8px}nav a{min-height:34px;padding:7px 10px;border-radius:8px;background:var(--primary-weak);color:var(--primary);font-weight:700}.page{width:min(760px,calc(100% - 28px));margin:0 auto;padding:24px 0 48px}.eyebrow{color:var(--primary);font-size:12px;font-weight:800}h1,h2,h3,p{margin-top:0}h1{margin-bottom:10px;font-size:28px;line-height:1.2}h2{margin-bottom:8px;font-size:20px;line-height:1.3}p{color:var(--muted);line-height:1.75}.stack{display:grid;gap:12px}.hero-panel{display:grid;gap:12px;padding:22px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(135deg,#146c5c14,#335f8a0f),var(--surface);box-shadow:0 14px 30px #15201d14}.card{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:16px;box-shadow:0 8px 18px #17211f0d}.card.compact{display:grid;gap:8px}.cluster{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-weight:800;cursor:pointer}.button.primary{border-color:var(--primary);background:var(--primary);color:#fff}.status{display:inline-flex;width:fit-content;min-height:28px;align-items:center;padding:0 10px;border-radius:999px;background:var(--primary-weak);color:var(--primary);font-size:12px;font-weight:800}.form{display:grid;gap:12px}label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:800}input,select,textarea{width:100%;min-height:42px;border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:#fff;color:var(--ink);font:inherit}textarea{min-height:110px;resize:vertical}.error-text{margin:0;color:var(--danger);font-weight:700}.auth-page{max-width:560px;margin:0 auto}.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.asset-list{display:grid;gap:10px}.asset{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:center}.asset img,.asset-placeholder{width:92px;height:70px;border:1px solid var(--line);border-radius:8px}.asset img{object-fit:cover}.asset-placeholder{display:grid;place-items:center;background:var(--blue-weak);color:var(--blue);font-weight:800;font-size:12px}.upload-card{padding:0;overflow:hidden}.upload-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,.78fr);gap:0}.upload-zone{display:grid;min-height:232px;gap:10px;align-content:center;justify-items:start;padding:20px;border:0;border-right:1px solid var(--line);background:linear-gradient(135deg,#146c5c17,#a9563414),#fbfdfc;color:var(--ink);text-align:left;cursor:pointer}.upload-zone strong{font-size:20px;overflow-wrap:anywhere}.upload-zone small{color:var(--muted);line-height:1.7;overflow-wrap:anywhere}.upload-mark{display:grid;width:38px;height:38px;place-items:center;border-radius:8px;background:var(--primary);color:#fff;font-size:28px;line-height:1}.file-input{display:none}.upload-form{padding:16px;align-content:start}.empty-state{padding:12px;border:1px dashed var(--line);border-radius:8px;color:var(--muted);background:#fbfdfc}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stat{padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff}.stat small{color:var(--muted)}.stat strong{display:block;margin-top:6px;font-size:20px;overflow-wrap:anywhere}.section-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.invite-box{display:grid;gap:4px;padding:14px;border:1px solid #f0d5c5;border-radius:8px;background:var(--accent-weak)}.invite-box small{color:var(--accent);font-weight:800}.invite-box strong{font-size:26px;letter-spacing:0}.event-row,.question-card,.task-card{display:grid;gap:8px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fbfdfc}.event-row{grid-template-columns:1fr auto;align-items:center}.event-row p,.question-card p,.task-card p{margin-bottom:0}.question-title{display:flex;align-items:center;justify-content:space-between;gap:10px}.question-card small{color:var(--muted);line-height:1.6}.task-card ol{margin:0;padding-left:20px;color:var(--muted);line-height:1.7}.plain-list{margin:0;padding-left:20px;color:var(--muted);line-height:1.8}.report-page .card{box-shadow:0 6px 16px #17211f0a}@media(max-width:640px){.topbar{align-items:flex-start;flex-direction:column}.brand small{max-width:260px}.stat-grid,.three-grid,.section-head,.event-row{grid-template-columns:1fr}.section-head{display:grid}.upload-grid{grid-template-columns:1fr}.upload-zone{min-height:190px;border-right:0;border-bottom:1px solid var(--line)}.asset{grid-template-columns:80px 1fr}.asset img,.asset-placeholder{width:80px;height:64px}h1{font-size:25px}}