:root{--bg: #f7f3ed;--paper: rgba(255, 255, 255, .72);--paper-solid: #fdfbf7;--panel: rgba(255, 255, 255, .16);--ink: #1c1917;--muted: #78716c;--soft: #a8a29e;--line: rgba(214, 211, 209, .72);--accent: #9a6f62;--accent-soft: #ead7cf;--ok: #34d399;--bad: #fb7185;--warn: #fbbf24;--shadow: 0 24px 70px rgba(68, 56, 43, .12);--shadow-soft: 0 14px 34px rgba(68, 56, 43, .1);--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Segoe UI,Microsoft YaHei,sans-serif;letter-spacing:0;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;overscroll-behavior:none}button{border:0;font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}img,video{max-width:100%}.app{min-height:100dvh}.screen{min-height:100dvh;padding:calc(20px + var(--safe-t)) 16px calc(20px + var(--safe-b))}.eyebrow{margin:0;color:var(--accent);font-size:14px;font-weight:700}.primary,.start-btn,.actions .solid{display:inline-flex;min-height:52px;align-items:center;justify-content:center;border-radius:999px;background:var(--ink);color:#fff;padding:0 24px;font-size:15px;font-weight:700;box-shadow:0 14px 30px #1c191738;transition:transform .12s ease,background .12s ease,opacity .12s ease}.primary:active,.start-btn:active,.actions .solid:active{transform:translateY(1px) scale(.99);background:#292524}.upload{display:flex;align-items:center;justify-content:center}.upload-card,.status-card{width:min(100%,720px);border:1px solid rgba(255,255,255,.82);border-radius:24px;background:var(--paper);padding:28px;box-shadow:var(--shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.upload-card h1{max-width:560px;margin:16px 0 0;color:#0c0a09;font-size:clamp(36px,9vw,56px);line-height:1.04;font-weight:700}.subtitle{max-width:520px;margin:18px 0 0;color:#57534e;font-size:16px;line-height:1.75}.dropzone{display:grid;width:100%;margin-top:28px;gap:8px;border:1px dashed #d6d3d1;border-radius:22px;background:#fdfbf7d1;padding:24px;text-align:left;transition:border-color .12s ease,transform .12s ease,background .12s ease}.dropzone:active{transform:scale(.995);border-color:var(--accent);background:#fff}.dz-kicker,.dz-sub{color:var(--muted);font-size:13px;font-weight:600}.dz-title{color:var(--ink);font-size:22px;font-weight:700}.upload .primary{width:100%;margin-top:18px}.step-grid{display:grid;gap:10px;margin-top:28px}.step-card{min-height:92px;border:1px solid rgba(214,211,209,.72);border-radius:18px;background:#fbfaf7c7;padding:14px}.step-card span{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:999px;background:var(--accent-soft);color:var(--ink);font-size:12px;font-weight:700}.step-card p{margin:12px 0 0;color:#292524;font-size:14px;font-weight:700;line-height:1.45}.note{margin:24px 0 0;border-top:1px solid rgba(214,211,209,.72);padding-top:18px;color:var(--muted);font-size:14px;font-weight:600}.analyzing{display:flex;align-items:center;justify-content:center}.status-card{display:grid;justify-items:start;gap:14px;max-width:440px}.status-card h1{margin:0;color:#0c0a09;font-size:28px;line-height:1.2}.spinner{width:52px;height:52px;border:4px solid #e7e5e4;border-top-color:var(--ink);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.check-list{display:grid;width:100%;gap:10px;margin:8px 0 0;padding:0;list-style:none}.check-list li{border:1px solid rgba(214,211,209,.72);border-radius:16px;background:#fbfaf7d1;padding:12px 14px;color:#57534e;font-size:14px;font-weight:700}.camera{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;padding:0;background:#0c0a09;color:#fff}.cam-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.overlay:before{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to bottom,rgba(0,0,0,.34),transparent 28%,rgba(0,0,0,.26));content:""}.ref-frame{position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;max-width:100%;max-height:100%;pointer-events:none}.ghost-photo{display:block;width:100%;height:100%;object-fit:fill}.ghost-contour{display:block;width:100%;height:100%;overflow:visible;filter:drop-shadow(0 0 12px rgba(255,255,255,.35))}.ghost-contour polygon{fill:#ffffff24;stroke:#ffffffeb;stroke-width:2.5;vector-effect:non-scaling-stroke;stroke-linejoin:round}.ghost-contour.is-aligned polygon{fill:#34d3992e;stroke:var(--ok)}.ghost-contour.is-aligned{filter:drop-shadow(0 0 16px rgba(52,211,153,.55));animation:ghost-pop .45s ease}@keyframes ghost-pop{0%{transform:scale(.985)}60%{transform:scale(1.01)}to{transform:scale(1)}}.bigarrow{position:absolute;top:34%;left:50%;display:flex;width:88px;height:88px;align-items:center;justify-content:center;transform:translate(-50%,-50%);border-radius:999px;background:#ffffffe0;color:#0c0a09;font-size:54px;font-weight:700;line-height:1;box-shadow:0 22px 50px #00000059;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);animation:arrow-in .28s cubic-bezier(.34,1.56,.64,1),nudge 1.15s .28s ease-in-out infinite}.bigarrow.medium{width:76px;height:76px;font-size:44px}@keyframes nudge{50%{transform:translate(-50%,-58%)}}@keyframes arrow-in{0%{opacity:0;transform:translate(-50%,-50%) scale(.6)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.pill{position:absolute;left:50%;bottom:calc(190px + var(--safe-b));transform:translate(-50%);border-radius:999px;padding:10px 16px;background:#0c0a0994;color:#fff;font-size:14px;font-weight:700;white-space:nowrap;box-shadow:0 14px 34px #00000038;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.pill.green{background:#34d399;color:#052e16}.command-sheet{position:absolute;right:12px;bottom:12px;left:12px;border-radius:26px;padding:14px 14px calc(16px + var(--safe-b));background:#12100e70;border:1px solid rgba(255,255,255,.14);color:#fff;backdrop-filter:blur(22px) saturate(1.4);-webkit-backdrop-filter:blur(22px) saturate(1.4);box-shadow:0 -12px 40px #00000047}.sheet-handle{width:42px;height:4px;margin:0 auto 12px;border-radius:999px;background:#ffffff47}.sheet-kicker{margin:0;color:#ffffff94;font-size:12px;font-weight:700}.sheet-title{min-height:58px;margin:8px 0 0;color:#fff;font-size:22px;font-weight:700;line-height:1.32}.meter{display:flex;gap:8px;margin-top:14px}.chip{display:inline-flex;min-height:34px;align-items:center;gap:6px;border-radius:999px;background:#ffffff1f;padding:0 11px;color:#ffffffe0;font-size:12px;font-weight:700}.dot{width:8px;height:8px;flex:none;border-radius:999px}.dot.ok{background:var(--ok)}.dot.bad{background:var(--bad);box-shadow:0 0 12px #fb7185b8}.back{position:absolute;top:calc(14px + var(--safe-t));left:14px;z-index:3;display:flex;width:44px;height:44px;align-items:center;justify-content:center;border-radius:999px;background:#ffffff29;color:#fff;font-size:28px;line-height:1;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.camera-brand{position:absolute;top:calc(17px + var(--safe-t));left:50%;z-index:3;transform:translate(-50%);border-radius:999px;background:#ffffff29;padding:10px 14px;color:#ffffffeb;font-size:12px;font-weight:700;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.ref-thumb-wrap{position:absolute;top:calc(72px + var(--safe-t));right:14px;z-index:3;width:58px;overflow:hidden;border:2px solid rgba(255,255,255,.86);border-radius:16px;box-shadow:0 14px 34px #0000005c}.ref-thumb{display:block;width:100%;height:100%;object-fit:fill}.ref-thumb-contour{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.ref-thumb-contour polygon{fill:none;stroke:var(--ok);stroke-width:1.5;vector-effect:non-scaling-stroke}.guide-ctrl{position:absolute;top:50%;right:14px;z-index:3;display:flex;flex-direction:column;gap:8px;align-items:center;transform:translateY(-50%)}.guide-btn{min-width:46px;padding:7px 10px;border-radius:999px;background:#1412106b;color:#ffffffd1;font-size:12px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.18)}.guide-btn.on{background:#ffffffeb;color:#0c0a09}.guide-btn:disabled{opacity:.35}.guide-opacity{width:74px;margin-top:4px;accent-color:#fff;-webkit-appearance:none;-moz-appearance:none;appearance:none;height:3px;border-radius:999px;background:#ffffff59}.guide-opacity::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:999px;background:#fff;box-shadow:0 2px 8px #0006}.fallback-pill{top:calc(120px + var(--safe-t));bottom:auto}.shutter{position:absolute;right:28px;bottom:calc(28px + var(--safe-b));z-index:4;display:flex;width:72px;height:72px;align-items:center;justify-content:center;border:0;border-radius:999px;background:#fff;box-shadow:0 18px 40px #00000059;transition:opacity .16s ease,transform .12s ease,box-shadow .16s ease}.shutter:before{width:34px;height:34px;border:3px solid #0c0a09;border-radius:999px;content:""}.shutter:active{transform:scale(.94)}.shutter.dim{opacity:.52}.shutter.live{box-shadow:0 0 0 6px #34d3994d,0 18px 44px #34d39970;animation:shutter-breathe 1.8s ease-in-out infinite}@keyframes shutter-breathe{0%,to{box-shadow:0 0 0 6px #34d3994d,0 18px 44px #34d39970}50%{box-shadow:0 0 0 11px #34d39929,0 18px 44px #34d39970}}.camera-start,.camera-error{display:flex;min-height:100dvh;align-items:center;justify-content:center;gap:18px;background:#0c0a09;color:#fff;text-align:left}.camera-start-card{width:min(100%,420px);border:1px solid rgba(255,255,255,.16);border-radius:24px;background:#ffffff1f;padding:24px;box-shadow:0 24px 70px #00000042;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.camera-start-card h1{margin:12px 0 0;font-size:34px;line-height:1.1}.camera-start-card p:last-child,.camera-error p{margin:14px 0 0;color:#ffffffb8;font-size:15px;font-weight:600;line-height:1.7}.camera-start .start-btn{width:min(100%,420px);background:#fff;color:#0c0a09}.camera-error{flex-direction:column;text-align:center}.camera-error button{min-height:44px;border-radius:999px;background:#ffffff24;color:#fff;padding:0 22px;font-weight:700}.result{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:14px}.result-title{margin:0 0 10px;color:#0c0a09;font-size:34px;line-height:1.1}.compare{display:grid;width:min(100%,760px);gap:12px}.compare figure{margin:0;overflow:hidden;border:1px solid rgba(255,255,255,.82);border-radius:24px;background:var(--paper-solid);padding:8px;box-shadow:var(--shadow-soft)}.compare figcaption{padding:8px 10px 10px;color:var(--muted);font-size:13px;font-weight:700}.compare img{display:block;width:100%;aspect-ratio:3 / 4;border-radius:18px;background:#e7e5e4;object-fit:cover}.actions{display:grid;width:min(100%,760px);grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}.actions button{min-height:52px;border-radius:999px;font-size:15px;font-weight:700}.actions .ghost{border:1px solid var(--line);background:#ffffffc7;color:var(--ink);box-shadow:var(--shadow-soft)}@media (min-width: 640px){.screen{padding:calc(32px + var(--safe-t)) 24px calc(32px + var(--safe-b))}.upload-card,.status-card{padding:36px}.step-grid{grid-template-columns:repeat(3,1fr)}.compare{grid-template-columns:1fr 1fr}}@media (max-width: 390px){.upload-card h1{font-size:33px}.sheet-title{font-size:20px}.meter{gap:6px}.chip{padding:0 9px}}