:root{--brand:#2e5bff;--brand-700:#1e40ff;--brand-50:#eef2ff;--accent:#ff6b35;--success:#16a34a;--danger:#ef4444;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--surface:#fff;--bg:#f4f6fb}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--brand)}.page{max-width:680px;margin:0 auto;padding:0 16px 64px}.hero{background:linear-gradient(135deg,#2e5bff,#1e3a8a);color:#fff;border-radius:0 0 22px 22px;padding:28px 22px 26px;margin:0 -16px 20px}.hero .brand{display:flex;align-items:center;gap:8px;font-size:13px;opacity:.9}.hero h1{font-size:23px;margin:12px 0 8px;line-height:1.3}.hero p{font-size:13px;line-height:1.7;opacity:.92;margin:0}.hero .meta{margin-top:14px;font-size:12px;background:hsla(0,0%,100%,.16);display:inline-block;padding:4px 12px;border-radius:999px}.progress{position:-webkit-sticky;position:sticky;top:0;z-index:5;background:var(--bg);margin:0 -16px;padding:10px 16px}.bar{height:6px;background:#e2e8f0;overflow:hidden}.bar,.bar>span{border-radius:999px}.bar>span{display:block;height:100%;background:linear-gradient(90deg,#2e5bff,#5b82ff);transition:width .3s}.progress .t{font-size:12px;color:var(--muted);margin-top:6px}.section-title{font-size:15px;font-weight:700;color:var(--brand-700);margin:26px 4px 12px;display:flex;align-items:center;gap:8px}.section-title:before{content:"";width:4px;height:16px;background:var(--brand);border-radius:2px}.q{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;margin-bottom:14px;box-shadow:0 1px 2px rgba(15,23,42,.03)}.q.missing{border-color:#fca5a5;box-shadow:0 0 0 3px rgba(239,68,68,.08)}.q .label{font-size:15px;font-weight:600;line-height:1.5}.q .star{color:var(--accent);margin-right:4px}.q .note{font-size:12px;color:var(--muted);margin-top:5px}.q .err{font-size:12px;color:var(--danger);margin-top:8px;display:none}.q.missing .err{display:block}.opts{margin-top:12px;flex-direction:column;gap:9px}.opt,.opts{display:flex}.opt{align-items:center;gap:11px;border:1px solid var(--line);border-radius:11px;padding:12px 13px;cursor:pointer;font-size:14px;line-height:1.4;transition:.12s;-webkit-tap-highlight-color:transparent}.opt:hover{border-color:#c7d2fe}.opt.on{border-color:var(--brand);background:var(--brand-50)}.opt .box{width:20px;height:20px;border:2px solid #cbd5e1;flex:none;display:flex;align-items:center;justify-content:center;font-size:12px;color:#fff;transition:.12s}.opt.single .box{border-radius:50%}.opt.multi .box{border-radius:6px}.opt.on .box{background:var(--brand);border-color:var(--brand)}.scale{margin-top:14px}.scale .dots{display:flex;gap:8px}.scale .dot{flex:1 1;height:46px;border:1px solid var(--line);border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;color:var(--muted);cursor:pointer;transition:.12s}.scale .dot:hover{border-color:#c7d2fe}.scale .dot.on{background:var(--brand);border-color:var(--brand);color:#fff}.scale .ends{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:7px}input.txt,textarea.txt{width:100%;border:1px solid var(--line);border-radius:11px;padding:12px 13px;font:inherit;font-size:14px;background:#fff;margin-top:12px}input.txt:focus,textarea.txt:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,91,255,.12)}textarea.txt{min-height:84px;resize:vertical;line-height:1.6}.other-in{margin-top:9px}.submit{position:-webkit-sticky;position:sticky;bottom:0;background:linear-gradient(transparent,var(--bg) 30%);padding:16px 0 8px;margin-top:8px}.submit button{width:100%;height:52px;border:none;border-radius:14px;background:var(--brand);color:#fff;font-size:17px;font-weight:600;cursor:pointer;box-shadow:0 8px 20px rgba(46,91,255,.28)}.submit button:disabled{background:#94a3b8;box-shadow:none;cursor:not-allowed}.submit button:active{background:var(--brand-700)}.done{text-align:center;padding:64px 24px}.done .tick{width:84px;height:84px;border-radius:50%;background:#dcfce7;color:var(--success);font-size:44px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px}.done h2{font-size:22px;margin:0 0 10px}.done p{color:var(--muted);font-size:14px;line-height:1.7;margin:0}.foot{text-align:center;color:#94a3b8;font-size:12px;margin-top:24px}