:root{--paper: #f6f7f9;--card: #ffffff;--ink: #1a2333;--ink-2: #4a5568;--ink-3: #8a94a6;--line: #e3e7ed;--line-strong: #c9d1dc;--blue: #438edb;--blue-deep: #2f74b8;--blue-tint: #ecf4fc;--red: #be0b24;--mark: #9aa3b2}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,Segoe UI,sans-serif;background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:16px}:focus-visible{outline:2px solid var(--blue);outline-offset:2px}#app{max-width:520px;margin:0 auto;padding:18px 20px calc(24px + env(safe-area-inset-bottom));min-height:100dvh}.masthead{display:flex;justify-content:space-between;align-items:center;margin:4px 0 8px}.wordmark{font-size:19px;font-weight:700;letter-spacing:.03em}.privacy-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--blue-deep);background:var(--blue-tint);border-radius:999px;padding:4px 10px;white-space:nowrap}.privacy-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--blue);flex:none}.frame{position:relative;display:inline-block;padding:15px}.frame .mark{position:absolute;width:13px;height:13px;pointer-events:none}.frame .tl{top:0;left:0;border-top:1.5px solid var(--mark);border-left:1.5px solid var(--mark)}.frame .tr{top:0;right:0;border-top:1.5px solid var(--mark);border-right:1.5px solid var(--mark)}.frame .bl{bottom:0;left:0;border-bottom:1.5px solid var(--mark);border-left:1.5px solid var(--mark)}.frame .br{bottom:0;right:0;border-bottom:1.5px solid var(--mark);border-right:1.5px solid var(--mark)}.hero{text-align:center;padding-top:18px}.mock-photo{position:relative;width:172px;aspect-ratio:295 / 413;overflow:hidden;background:radial-gradient(130% 95% at 50% 0%,#6ea9ea 0%,var(--blue) 55%,#3b7cc4 100%);transform:rotate(-2.5deg);box-shadow:0 12px 26px #1a233333,0 2px 6px #1a23331a}.mock-head{position:absolute;left:50%;top:15%;width:31%;aspect-ratio:1;border-radius:50%;background:#fff;transform:translate(-50%)}.mock-body{position:absolute;left:50%;bottom:-14%;width:66%;height:38%;border-radius:50% 50% 0 0/62% 62% 0 0;background:#fff;transform:translate(-50%)}.mock-photo.dim{filter:saturate(.55) brightness(.95)}.scan{position:absolute;inset:0;overflow:hidden;pointer-events:none}.scan:after{content:"";position:absolute;left:0;right:0;height:56px;top:-56px;background:linear-gradient(180deg,transparent,rgba(255,255,255,.5));animation:scan 1.8s ease-in-out infinite}@keyframes scan{0%{transform:translateY(0)}to{transform:translateY(560px)}}.ticket{display:flex;justify-content:center;gap:14px;align-items:baseline;margin:10px 0 0;padding-top:10px;border-top:1px dashed var(--line-strong);color:var(--ink-2);font-size:13px;font-variant-numeric:tabular-nums}.ticket span:first-child{font-weight:600;color:var(--ink)}.lede{font-size:16.5px;font-weight:600;text-align:center;margin:30px 0 20px}.quiet{color:var(--ink-3);font-size:12.5px;line-height:1.6;margin:10px 0 0;text-align:center}.hints{margin:24px 0 0;padding:0;list-style:none;color:var(--ink-2);font-size:13.5px;line-height:1.75}.hints li{position:relative;padding-left:18px}.hints li:before{content:"";position:absolute;left:2px;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--line-strong)}.err{color:var(--red);font-size:14px;margin:14px 0 0}.note{background:#fff7e6;border-radius:8px;padding:8px 10px;font-size:13px;color:#92610a;margin:12px 0 0}.btn{display:block;width:100%;border:none;border-radius:12px;padding:16px;font-size:16.5px;font-weight:600;font-family:inherit;cursor:pointer}.btn.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px #438edb47}.btn.primary:active{background:var(--blue-deep);transform:translateY(1px)}.btn.ghost{background:var(--card);color:var(--ink);border:1.5px solid var(--line);box-shadow:none}.btn:disabled{opacity:.45;pointer-events:none}.stage{font-size:15px;text-align:center;margin:22px 0 0}.progress-track{height:5px;background:var(--line);border-radius:3px;overflow:hidden;margin:12px auto 0;max-width:260px}.progress-bar{height:100%;background:var(--blue);transition:width .2s}.progress-bar.indet{width:40%!important;animation:indet 1.1s ease-in-out infinite alternate}@keyframes indet{0%{transform:translate(-40%)}to{transform:translate(160%)}}.pv-head{display:flex;justify-content:space-between;align-items:center;margin:2px 0 6px}.link-btn{background:none;border:none;color:var(--ink-2);font-size:14.5px;font-family:inherit;cursor:pointer;padding:6px 0}.pv-context{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}.shot{text-align:center;padding-top:12px}canvas.preview{display:block;margin:0 auto;width:min(76vw,300px);height:auto;touch-action:none;cursor:grab;box-shadow:0 6px 18px #1a233324}.gesture-hint{margin-top:12px}.opts{margin-top:30px;border-top:1px solid var(--line);padding-top:6px}.opt-row{margin-top:18px}.opt-row h2{font-size:13px;font-weight:600;color:var(--ink-3);margin:0 0 10px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{display:flex;flex-direction:column;align-items:center;gap:1px;min-width:66px;padding:8px 12px;background:var(--card);border:1.5px solid var(--line);border-radius:10px;font-family:inherit;cursor:pointer;transition:border-color .15s,background .15s}.chip b{font-size:14.5px;font-weight:600;color:var(--ink)}.chip small{font-size:11.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}.chip.on{border-color:var(--blue);background:var(--blue-tint)}.chip.on b{color:var(--blue-deep)}.chip:disabled{opacity:.4;pointer-events:none}.swatch{width:42px;height:34px;border-radius:9px;border:1.5px solid var(--line);padding:0;cursor:pointer;overflow:hidden;position:relative}.swatch.on{border-color:var(--blue);box-shadow:0 0 0 2px var(--paper),0 0 0 3.5px var(--blue)}.swatch.custom{background:conic-gradient(#f66,#fc3,#3c6,#36f,#f66)}.swatch.custom input{width:200%;height:200%;margin:-50%;border:none;padding:0;cursor:pointer;opacity:0}.actions{margin-top:28px;border-top:1px solid var(--line);padding-top:22px}.row2{display:flex;gap:10px;margin-top:10px}.row2>*{flex:1}@media (prefers-reduced-motion: reduce){.scan:after,.progress-bar.indet{animation:none}.chip{transition:none}}@media (min-width: 880px){#app{max-width:980px;padding:40px 36px calc(36px + env(safe-area-inset-bottom))}.wordmark{font-size:21px}.setup-grid{display:grid;grid-template-columns:minmax(280px,380px) 1fr;column-gap:72px;align-items:center;padding-top:24px}.setup-grid .hero{padding-top:0}.mock-photo{width:224px}.setup-grid .lede{text-align:left;font-size:26px;line-height:1.35;margin:0 0 24px}.setup-grid .btn.primary{max-width:340px}.setup-grid .hints{margin-top:26px;font-size:14px}.pv-grid{display:grid;grid-template-columns:minmax(340px,440px) 1fr;column-gap:64px;align-items:start;padding-top:10px}canvas.preview{width:320px}.pv-grid .opts{margin-top:4px;border-top:none;padding-top:0}.pv-grid .actions{margin-top:26px}.pv-grid .btn.primary{max-width:340px}}