:root{color-scheme:light;--bg:#f6f7f9;--panel:#fff;--text:#1f2933;--muted:#5b6675;--line:#d9dee7;--primary:#2563eb;--page-bg:#f5f8fa;--card-bg:#fff;--surface-subtle:#f7fbfd;--text-heading:#16394d;--text-primary:#253743;--text-secondary:#60727d;--text-muted:#73848e;--border-default:#dde8ed;--border-strong:#bfd2df;--brand-blue-100:#eaf6fc;--brand-blue-600:#0b87c8;--brand-blue-700:#0877b5;--brand-cyan-100:#e8f9fb;--brand-cyan-600:#10a9bd;--brand-gold-500:#f1c232;--danger:#b42318;--radius-control:10px;--radius-card:16px;--shadow-card:0 8px 24px rgb(22 57 77/7%);--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}a{color:inherit}.page{min-height:100vh;padding:48px 20px}.shell{max-width:920px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:32px}.form-shell{max-width:1040px}.eyebrow{color:var(--primary);font-size:14px;font-weight:700}.muted{color:var(--muted)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border-radius:8px;border:1px solid var(--line);text-decoration:none;font-weight:700;font-size:16px;background:#fff}.button.primary{background:var(--primary);border-color:var(--primary);color:#fff}.button:disabled{cursor:not-allowed;opacity:.55}.list{line-height:1.8}.notice{margin:24px 0;padding:18px 20px;border:1px solid #c7d2fe;border-radius:8px;background:#eef2ff}.notice p{margin-bottom:0}.form-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.progress{border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:14px;padding:8px 12px;white-space:nowrap}.progress-bar{height:8px;overflow:hidden;border-radius:999px;background:#e5e7eb}.progress-bar span{display:block;height:100%;border-radius:inherit;background:var(--primary);transition:width .2s ease}.question-list{display:grid;grid-gap:20px;gap:20px;margin-top:28px}.question-card{margin:0;padding:22px;border:1px solid var(--line);border-radius:10px;background:#fff}.question-card legend{display:flex;gap:10px;align-items:flex-start;color:var(--text);font-size:18px;font-weight:800;line-height:1.45}.question-card legend span{color:var(--primary)}.hint{margin:8px 0 0;color:var(--muted);font-size:14px}.option-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:10px;gap:10px;margin-top:18px}.option{display:flex;gap:10px;align-items:flex-start;min-height:46px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#f9fafb;line-height:1.45}.option input{margin-top:3px}.option-disabled{color:#9ca3af}.text-input{width:100%;min-height:46px;margin-top:18px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;color:var(--text);font:inherit}.textarea{min-height:96px;resize:vertical}.form-error{color:#b91c1c;font-weight:700}.form-actions{justify-content:space-between}.success-shell{border-color:#86efac}.submission-id{padding:12px 14px;border-radius:8px;background:#f3f4f6;color:var(--muted);word-break:break-all}@media (max-width:640px){.page{padding:24px 12px}.shell{padding:22px}.form-header{display:block}.progress{display:inline-flex;margin-bottom:12px}}