.document-picker{flex-wrap:wrap;align-items:center;gap:.5rem;min-width:0;display:flex}.document-picker__input{display:none}.document-picker__button{flex:none}.document-picker__filename{overflow-wrap:anywhere;word-break:break-word;flex:auto;min-width:0}.promo-slot{background:#fafafa;border:1px solid #ddd;border-radius:8px;margin:12px 0;padding:12px}.promo-label{text-transform:uppercase;letter-spacing:.05em;color:#888;margin-bottom:6px;font-size:11px}.promo-link{color:inherit;text-decoration:none;display:block}.promo-title{color:#222;font-size:15px;font-weight:600}.promo-body{color:#555;margin-top:4px;font-size:13px}.promo-admin{flex-wrap:wrap;gap:16px;display:flex}.promo-form{border:1px solid #ddd;border-radius:8px;flex:1;min-width:280px;padding:12px}.promo-form-title{text-transform:capitalize;margin:0 0 8px}.promo-field{color:#444;margin-bottom:8px;font-size:12px;display:block}.promo-input{box-sizing:border-box;border:1px solid #ccc;border-radius:4px;width:100%;padding:6px;font-size:13px;display:block}.promo-check{align-items:center;gap:6px;display:flex}.promo-error{color:#c00;margin:6px 0;font-size:12px}.promo-save{color:#fff;cursor:pointer;background:#2563eb;border:0;border-radius:4px;padding:6px 14px}.growth{box-sizing:border-box;max-width:100%;color:inherit;font-family:inherit}.growth *,.growth :before,.growth :after{box-sizing:border-box}.growth-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.growth-title{margin:0 0 8px;font-size:1.15rem}.growth-subtitle{margin:12px 0 6px;font-size:1rem}.growth-body{flex-direction:column;gap:10px;display:flex}.growth-label{opacity:.8;font-size:.85rem}.growth-linkrow{flex-wrap:wrap;gap:8px;display:flex}.growth-input{color:#111;background:#fff;border:1px solid #ccc;border-radius:6px;flex:220px;min-width:0;padding:8px 10px;font-size:.9rem}.growth-btn{color:#fff;cursor:pointer;background:#333;border:1px solid #333;border-radius:6px;padding:8px 14px;font-size:.9rem}.growth-btn:disabled{opacity:.5;cursor:not-allowed}.growth-btn-ghost{color:inherit;background:0 0;border-color:#999}.growth-stats{flex-wrap:wrap;gap:12px;margin:6px 0;display:flex}.growth-stat{text-align:center;border:1px solid #ddd;border-radius:8px;flex:90px;min-width:0;padding:10px}.growth-stat-num{font-size:1.4rem;font-weight:700;display:block}.growth-stat-lbl{opacity:.75;margin-top:2px;font-size:.75rem;display:block}.growth-notes{margin-top:8px}.growth-note{opacity:.9;margin:4px 0;font-size:.85rem;line-height:1.4}.growth-note-strong{font-weight:600}.growth-muted{opacity:.75;margin:4px 0;font-size:.85rem}.growth-error{color:#b00020;margin:4px 0;font-size:.85rem}.growth-panel{border:1px solid #ddd;border-radius:8px;flex-direction:column;gap:8px;max-width:100%;margin-top:10px;padding:12px;display:flex}.growth-check{align-items:flex-start;gap:8px;font-size:.85rem;line-height:1.3;display:flex}.growth-check input{margin-top:2px}.growth-check-adult{color:#8a4b00}.growth-preview{white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere;color:#111;background:#f6f6f6;border-radius:6px;max-width:100%;margin:0;padding:10px;font-size:.85rem;overflow-x:auto}.growth-actions{flex-wrap:wrap;gap:8px;display:flex}@media (width<=480px){.growth-linkrow{flex-direction:column}.growth-input{flex:auto;width:100%}.growth-btn,.growth-actions .growth-btn{width:100%}.growth-stat{flex:100%}}.demo-root{--demo-bg:#0f1115;--demo-fg:#f2f4f8;--demo-mut:#9aa3b2;--demo-line:#262b36;--demo-acc:#5b8cff;--demo-card:#171a21;box-sizing:border-box;background:var(--demo-bg);width:100%;max-width:560px;color:var(--demo-fg);border-radius:14px;margin:0 auto;padding:16px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.5}.demo-root *{box-sizing:border-box}.demo-head{justify-content:space-between;align-items:center;gap:8px;display:flex}.demo-title{flex-wrap:wrap;align-items:center;gap:8px;font-size:17px;font-weight:700;display:flex}.demo-badge{color:var(--demo-acc);border:1px solid var(--demo-acc);white-space:nowrap;border-radius:999px;padding:2px 8px;font-size:11px;font-weight:600}.demo-close{color:var(--demo-mut);border:1px solid var(--demo-line);cursor:pointer;background:0 0;border-radius:8px;padding:6px 10px;font-size:13px}.demo-close:hover{color:var(--demo-fg)}.demo-note{color:var(--demo-mut);margin:8px 0 12px;font-size:12px}.demo-tone{border:1px solid var(--demo-line);background:var(--demo-card);border-radius:10px;flex-direction:column;gap:8px;padding:10px;display:flex}.demo-check{color:var(--demo-fg);cursor:pointer;align-items:center;gap:8px;font-size:13px;display:flex}.demo-check input{width:16px;height:16px;accent-color:var(--demo-acc)}.demo-seg{gap:6px;display:flex}.demo-seg button{color:var(--demo-mut);border:1px solid var(--demo-line);cursor:pointer;background:0 0;border-radius:8px;flex:1;padding:8px;font-size:13px}.demo-seg button:disabled{opacity:.45;cursor:not-allowed}.demo-seg .demo-seg-on{background:var(--demo-acc);border-color:var(--demo-acc);color:#fff;font-weight:600}.demo-card{background:var(--demo-card);border:1px solid var(--demo-line);border-radius:12px;margin-top:14px;padding:14px}.demo-progress{color:var(--demo-mut);margin-bottom:6px;font-size:12px}.demo-q{margin:0 0 12px;font-size:18px;line-height:1.4}.demo-reveal{background:var(--demo-acc);color:#fff;cursor:pointer;border:0;border-radius:10px;width:100%;padding:12px;font-size:15px;font-weight:600}.demo-answer{flex-direction:column;gap:10px;display:flex}.demo-a{margin:0;font-size:15px}.demo-ex,.demo-joke{color:var(--demo-fg);border:1px solid var(--demo-line);background:#12151b;border-radius:10px;margin:0;padding:10px;font-size:14px}.demo-tag{color:var(--demo-acc);text-transform:uppercase;letter-spacing:.04em;margin-right:6px;font-size:11px;font-weight:700;display:inline-block}.demo-rate{grid-template-columns:1fr 1fr;gap:8px;display:grid}.demo-rate button{color:var(--demo-fg);border:1px solid var(--demo-line);cursor:pointer;text-align:left;background:0 0;border-radius:10px;padding:10px;font-size:13px}.demo-rate button:hover{border-color:var(--demo-acc)}.demo-rate b{color:var(--demo-acc);margin-right:4px}.demo-hint{color:var(--demo-mut);margin:0;font-size:12px}.demo-nav{gap:8px;margin-top:12px;display:flex}.demo-nav button{color:var(--demo-fg);border:1px solid var(--demo-line);cursor:pointer;background:0 0;border-radius:10px;flex:1;padding:10px;font-size:14px}.demo-nav button:disabled{opacity:.4;cursor:not-allowed}.demo-done{background:var(--demo-card);border:1px solid var(--demo-line);text-align:center;border-radius:12px;margin-top:14px;padding:16px}.demo-done h2{margin:0 0 8px;font-size:18px}.demo-done p{color:var(--demo-mut);margin:0 0 14px;font-size:14px}.demo-done-actions{flex-direction:column;gap:8px;display:flex}.demo-primary{background:var(--demo-acc);color:#fff;cursor:pointer;border:0;border-radius:10px;padding:12px;font-size:15px;font-weight:600}.demo-secondary{color:var(--demo-fg);border:1px solid var(--demo-line);cursor:pointer;background:0 0;border-radius:10px;padding:12px;font-size:15px}@media (width<=390px){.demo-root{border-radius:0;padding:12px}.demo-q{font-size:16px}.demo-rate{grid-template-columns:1fr}.demo-title{font-size:15px}}:root{--background:#f5f6fa;--foreground:#202337;--card:#fff;--primary:#5635d1;--border:#dfe2eb;--muted:#64687a;--radius:14px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:Arial,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{background:var(--background);color:var(--foreground);margin:0;font-size:16px;line-height:1.65}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:var(--primary);text-decoration:none}button{border:1px solid var(--border);color:inherit;background:#fff;border-radius:10px;padding:10px 17px}button:hover:not(:disabled){border-color:var(--primary)}button:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #ac96fa}.primary{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:700}.danger{color:#ac2442}.text{color:var(--primary);background:0 0;border:0;padding-left:0}input,textarea,select{width:100%;color:var(--foreground);background:#fff;border:1px solid #bec3d2;border-radius:9px;padding:11px}textarea{resize:vertical;min-height:110px}label{margin-bottom:16px;font-weight:600;display:block}label input,label textarea,label select{margin-top:6px;display:block}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-1px;font-size:clamp(30px,5vw,52px);line-height:1.2}h2{font-size:25px;line-height:1.35}h3{font-size:20px;line-height:1.5}.muted,small{color:var(--muted)}small{font-size:14px}.entry,.workspace{max-width:1200px;margin:auto;padding:0 28px 60px}header{border-bottom:1px solid var(--border);align-items:center;gap:12px;height:90px;margin-bottom:38px;display:flex}header small{margin-left:auto}.brand{color:#252039;font-size:36px;font-weight:900;line-height:1}.brand span{color:var(--primary)}.auth-layout{grid-template-columns:1.1fr 1fr;align-items:start;gap:9%;padding:30px 0;display:grid}.eyebrow{letter-spacing:3px;color:var(--primary);font-weight:700}.lede{color:#51566b;font-size:18px;line-height:1.9}.panel{border:1px solid var(--border);background:#fff;border-radius:18px;padding:28px}.panel form>.primary{width:100%}.sample{border-left:4px solid var(--primary);background:#eae5ff;max-width:420px;margin-top:35px;padding:22px 25px}.sample span{color:var(--primary);font-size:14px}.sample h3{margin:12px 0;font-size:25px}.sample p{margin:0}.row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.spread{justify-content:space-between}.grid{grid-template-columns:minmax(0,1fr) 340px;gap:24px;display:grid}.doc{margin-bottom:16px}.badge{color:#4f2cb6;background:#eee9ff;border-radius:6px;padding:3px 9px;font-size:14px;display:inline-block}.progress{background:#e8e6f0;border-radius:9px;height:7px;margin:14px 0;overflow:hidden}.progress div{background:var(--primary);height:100%}.empty{text-align:center;padding:50px 20px}.notice{white-space:pre-wrap;overflow-wrap:anywhere;background:#e9e4ff;border:1px solid #bfb0ef;border-radius:10px;margin-bottom:20px;padding:12px 16px}.error{color:#8a1634;background:#fff0f2;border-color:#ecadbc}.study{max-width:780px;margin:auto}.study-card{min-height:300px;margin-top:20px;padding:clamp(22px,5vw,42px)}.study-card h2{margin:25px 0;font-size:clamp(24px,4vw,32px)}.answer{border-top:1px solid var(--border);padding-top:25px}.answer strong{font-size:21px}.burn{background:#fff0e6;border-left:4px solid #d74b15;margin:22px 0;padding:18px;font-weight:700}.ratings{grid-template-columns:repeat(4,1fr);gap:8px;margin-top:22px;display:grid}.ratings button{padding:12px 5px}.footer-note{color:var(--muted);margin-top:25px;font-size:14px}.overlay{z-index:50;background:#17132799;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0;overflow:auto}.modal{width:min(620px,100%);max-height:90vh;overflow:auto}.modal .options{gap:10px;display:grid}.stats{flex-wrap:wrap;gap:26px;margin:24px 0;display:flex}.stats b{font-size:28px;display:block}.admin-table{overflow:auto}.admin-table table{border-collapse:collapse;text-align:left;width:100%;min-width:600px}.admin-table td,.admin-table th{border-bottom:1px solid var(--border);padding:10px;font-size:14px}.admin-table input{width:95px}.source{white-space:pre-wrap;overflow-wrap:anywhere;background:#f4f5f9;padding:14px;font-size:14px}.sr-only{clip:rect(0,0,0,0);width:1px;height:1px;position:absolute;overflow:hidden}.recovery{word-break:break-all;background:#f0eef9;padding:16px;font-family:monospace;font-size:18px}nav{flex-wrap:wrap;gap:8px;display:flex}hr{border:0;border-top:1px solid var(--border);margin:22px 0}@media (width<=760px){.entry,.workspace{padding:0 16px 40px}header{flex-wrap:wrap;height:auto;min-height:76px;margin-bottom:24px;padding:16px 0}header small{display:none}.auth-layout,.grid{grid-template-columns:1fr;gap:26px;padding:0}.auth-layout>.intro{display:none}.panel{padding:20px}.ratings{grid-template-columns:repeat(2,1fr)}.study-card{padding:22px}.row button{flex-shrink:0}h1{font-size:34px}.grid>aside{grid-row:1}.stats{gap:15px}}.study-card{touch-action:pan-y}.community-tools{margin:16px 0 24px}.feedback-modal input[type=radio]{width:auto;margin-right:6px}.feedback-modal label{align-items:center;display:flex}.feedback-modal textarea{width:100%;min-height:140px}.community-tools>div{max-width:100%}.language-picker{align-items:center;gap:6px;display:inline-flex}.language-picker select{max-width:9rem}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.demo-entry{justify-content:center;margin:18px 0;display:flex}.demo-entry button{min-width:220px}.explicit-consent{align-items:center;gap:8px;max-width:22rem;margin:8px 0;font-size:14px;display:flex}.explicit-consent input{flex:none;width:auto}@media (width<=640px){header{flex-wrap:wrap;gap:8px}header nav{flex-wrap:wrap}.language-picker select{max-width:6rem}.demo-entry button{width:100%}.intro{display:none}}.language-picker select{min-width:7.2rem;max-width:9rem}.growth-invite-entry{margin:16px 0}.growth-preview{white-space:pre-wrap;width:100%;min-height:180px}