:root{--bg-base: #F7F5F0;--bg-raised: #FFFFFF;--ink-900: #1A1D21;--ink-600: #565D66;--ink-400: #9AA1AB;--line: #E8E4DC;--brand-600: #5B4CE6;--signal-green: #2FB673;--signal-amber: #F5A524;--signal-red: #E5484D;--signal-blue: #35ACE7;--signal-gray: #C9CDD3;--night-bg: #101216;--night-raised: #1B1F26;--night-ink: #E9EAEC;--night-red: #FF5C61;--radius-card: 16px;--radius-btn: 12px;--radius-sheet: 20px;--shadow-rest: 0 1px 2px rgba(26,29,33,.05), 0 4px 16px rgba(26,29,33,.06);--shadow-float: 0 8px 32px rgba(26,29,33,.12);--font-sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg-base);color:var(--ink-900);font-family:var(--font-sans);font-size:15px;line-height:24px;overflow:hidden;-webkit-font-smoothing:antialiased}.display{font-size:44px;line-height:52px;font-weight:650;letter-spacing:-.5px}.h1{font-size:28px;line-height:36px;font-weight:600}.h2{font-size:20px;line-height:28px;font-weight:600}.caption{font-size:12.5px;line-height:18px;color:var(--ink-400)}.num{font-variant-numeric:tabular-nums}.btn{font-family:inherit;font-size:15px;font-weight:600;border:none;cursor:pointer;border-radius:var(--radius-btn);padding:12px 24px;transition:transform .12s ease,opacity .12s ease}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--brand-600);color:#fff}.btn-primary:hover{opacity:.92}.btn-ghost{background:transparent;color:var(--ink-600);border:1px solid var(--line)}.btn-ghost:hover{background:#00000008}.btn-night{background:var(--night-raised);color:var(--night-ink);border:1px solid #2A2F38}.btn-night:hover{border-color:#3a4150}.input-hero{width:640px;max-width:86vw;font-family:inherit;font-size:17px;color:var(--ink-900);background:var(--bg-raised);border:1px solid var(--line);border-radius:var(--radius-btn);padding:18px 22px;box-shadow:var(--shadow-rest);outline:none;transition:box-shadow .3s ease,border-color .3s ease}.input-hero:focus{border-color:var(--brand-600);box-shadow:0 0 0 4px #5b4ce61a,var(--shadow-rest)}.input-hero::placeholder{color:var(--ink-400)}.input-small{font-family:inherit;font-size:14px;color:var(--ink-900);background:var(--bg-raised);border:1px solid var(--line);border-radius:10px;padding:9px 12px;outline:none;width:100%}.input-small:focus{border-color:var(--brand-600)}.pack-card{width:340px;background:var(--bg-raised);border:1px solid 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18px;cursor:pointer;background:var(--bg-raised);transition:border-color .15s,background .15s;font-size:14px;line-height:22px}.option-card:hover{border-color:var(--ink-400)}.option-card.selected{border-color:var(--brand-600);background:#5b4ce60d}.option-card .opt-title{font-weight:600;margin-bottom:2px}.drawer{position:fixed;top:0;right:0;bottom:0;width:380px;max-width:92vw;z-index:60;background:var(--bg-raised);box-shadow:-12px 0 48px #1a1d2124;padding:32px 28px;overflow-y:auto}.drawer-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1d2140;z-index:55}.evidence-card{border:1px solid var(--line);border-radius:var(--radius-card);padding:14px 16px;margin-bottom:12px;background:var(--bg-base)}.evidence-card .src{font-size:12px;color:var(--ink-400);margin-bottom:4px}.evidence-card .txt{font-size:14px;font-weight:600}.strength-tag{display:inline-block;font-size:11px;padding:2px 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