:root{color:#1e2522;font-synthesis:none;--ink:#1e2522;--muted:#6e7672;--line:#dfe2dc;--surface:#fff;--green:#185c4a;--green-2:#26705d;--rose:#b85f6a;--gold:#9b782b;background:#f5f5f1;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{color:inherit}.app-shell{min-height:100vh}.topbar{border-bottom:1px solid var(--line);z-index:20;background:#fafaf7f2;grid-template-columns:220px 1fr 220px;align-items:center;height:72px;padding:0 28px;display:grid;position:sticky;top:0}.brand{cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:10px;padding:0;display:flex}.brand-mark{background:var(--ink);color:#fff;place-items:center;width:38px;height:38px;font-family:Georgia,serif;font-size:19px;display:grid}.brand strong,.brand small{letter-spacing:0;display:block}.brand strong{font-size:16px}.brand small{color:var(--muted);margin-top:2px;font-size:10px}.stepper{justify-content:center;align-items:center;gap:30px;display:flex}.step{color:#a2a7a4;white-space:nowrap;align-items:center;gap:8px;font-size:12px;display:flex}.step span{border:1px solid #cfd3ce;border-radius:50%;place-items:center;width:22px;height:22px;font-size:11px;display:grid}.step.active{color:var(--ink);font-weight:600}.step.active span{background:var(--green);border-color:var(--green);color:#fff}.icon-button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:4px;justify-self:end;place-items:center;width:38px;height:38px;display:grid}main{min-height:calc(100vh - 72px)}.upload-layout{grid-template-columns:1fr 1fr;align-items:center;gap:9vw;max-width:1160px;min-height:calc(100vh - 72px);margin:auto;padding:8vh 36px;display:grid}.eyebrow,.section-kicker{color:var(--green);align-items:center;gap:7px;font-size:12px;font-weight:700;display:flex}.upload-copy h1{letter-spacing:0;margin:18px 0 20px;font-family:Georgia,Songti SC,serif;font-size:clamp(42px,5vw,70px);font-weight:500;line-height:1.1}.upload-copy>p{max-width:510px;color:var(--muted);font-size:16px;line-height:1.85}.photo-guide{gap:20px;margin-top:42px;display:grid}.photo-guide div{grid-template-columns:34px 1fr;align-items:start;gap:12px;display:grid}.photo-guide span{color:var(--gold);padding-top:3px;font-family:Georgia,serif;font-size:12px}.photo-guide p{color:var(--muted);margin:0;font-size:13px;line-height:1.55}.photo-guide strong{color:var(--ink);font-size:14px;display:block}.drop-zone{cursor:pointer;background:#fbfbf8;border:1px dashed #aeb7b1;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:500px;padding:28px;transition:all .2s;display:flex}.drop-zone:hover,.drop-zone.dragging{border-color:var(--green);background:#f0f6f2;transform:translateY(-2px)}.upload-icon{width:58px;height:58px;color:var(--green);border:1px solid #cfd8d2;border-radius:50%;place-items:center;margin-bottom:8px;display:grid}.drop-zone>strong{font-size:17px}.drop-zone>small{color:var(--muted)}.primary-button,.generate-button{background:var(--green);color:#fff;cursor:pointer;border:0;border-radius:4px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-weight:700;display:inline-flex}.drop-zone .primary-button{margin-top:15px}.loading-view{flex-direction:column;justify-content:center;align-items:center;gap:34px;min-height:calc(100vh - 72px);padding:40px;display:flex}.scan-frame{aspect-ratio:3/4;background:#dde1dc;width:min(290px,65vw);position:relative;overflow:hidden}.scan-frame img{object-fit:cover;width:100%;height:100%}.scan-frame:after{content:"";background:linear-gradient(#185c4a14,#0000 45%,#185c4a1f);position:absolute;inset:0}.scan-line{z-index:2;background:#62b093;height:1px;animation:1.7s ease-in-out infinite scan;position:absolute;top:12%;left:8%;right:8%;box-shadow:0 0 16px #62b093}@keyframes scan{50%{top:86%}}.corner{z-index:3;border-style:solid;border-color:#fff;width:22px;height:22px;position:absolute}.corner.tl{border-width:2px 0 0 2px;top:12px;left:12px}.corner.tr{border-width:2px 2px 0 0;top:12px;right:12px}.corner.bl{border-width:0 0 2px 2px;bottom:12px;left:12px}.corner.br{border-width:0 2px 2px 0;bottom:12px;right:12px}.loading-copy{text-align:center;width:min(410px,90vw)}.spinner{width:40px;height:40px;color:var(--green);background:#e4eee9;border-radius:50%;place-items:center;margin:auto;display:grid}.loading-copy h2{margin:15px 0 8px;font-size:19px}.loading-copy p{color:var(--muted);font-size:12px}.loading-track{background:#dfe4e0;height:3px;margin-top:22px;overflow:hidden}.loading-track span{background:var(--green);width:45%;height:100%;animation:1.1s ease-in-out infinite loading;display:block}@keyframes loading{0%{transform:translate(-110%)}to{transform:translate(250%)}}.workspace-grid{grid-template-columns:minmax(300px,42%) 1fr;min-height:calc(100vh - 72px);margin-right:268px;display:grid}.portrait-panel{background:#e7e7e2;flex-direction:column;height:calc(100vh - 72px);min-height:calc(100vh - 72px);padding:22px;display:flex;position:sticky;top:72px}.panel-heading{justify-content:space-between;align-items:center;margin-bottom:16px;font-size:12px;display:flex}.panel-heading small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;max-width:62%;overflow:hidden}.portrait-wrap{background:#d7d8d3;flex:1;min-height:0;overflow:hidden}.portrait-wrap img{object-fit:contain;width:100%;height:100%;display:block}.quality-row{color:var(--muted);flex-wrap:wrap;gap:16px;padding-top:14px;font-size:11px;display:flex}.quality-row span{align-items:center;gap:5px;display:flex}.report-panel{background:var(--surface);padding:38px clamp(28px,4vw,58px) 70px}.report-header,.result-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:start;gap:18px;padding-bottom:25px;display:flex}.report-header h2,.result-heading h2{letter-spacing:0;margin:8px 0 0;font-family:Georgia,Songti SC,serif;font-size:30px;font-weight:500}.status-pill{color:var(--green);background:#eaf3ee;border-radius:20px;align-items:center;gap:5px;padding:7px 10px;font-size:11px;display:flex}.report-section{padding-top:30px}.report-section h3{align-items:center;gap:10px;margin:0 0 16px;font-size:14px;display:flex}.report-section h3 span{color:var(--gold);font-family:Georgia,serif;font-size:11px}.data-table{border-top:1px solid var(--ink)}.table-row{border-bottom:1px solid var(--line);grid-template-columns:1fr 1.45fr 1.65fr;font-size:12px;line-height:1.45;display:grid}.table-row span{padding:11px 10px 11px 0}.table-row span:not(:last-child){border-right:1px solid #edf0ec}.table-row span:not(:first-child){padding-left:10px}.table-head{color:var(--muted);background:#fafaf8;font-size:10px}.avoid-grid{grid-template-columns:1fr 1fr;gap:9px;display:grid}.avoid-item{background:#f8f7f4;gap:9px;min-height:72px;padding:12px;display:flex}.avoid-item>svg{color:var(--rose);flex:none;margin-top:1px}.avoid-item strong{font-size:11px;display:block}.avoid-item p{color:var(--muted);margin:5px 0 0;font-size:10px;line-height:1.45}.final-plan{background:#f5f9f6;border:1px solid #d6ded9;gap:14px;margin-top:25px;padding:18px;display:flex}.plan-icon{background:var(--green);color:#fff;flex:none;place-items:center;width:36px;height:36px;display:grid}.final-plan span{color:var(--green);font-size:11px;font-weight:700}.final-plan p{margin:6px 0 0;font-size:12px;line-height:1.65}.intensity-panel{border-top:1px solid var(--ink);margin-top:32px;padding-top:22px}.intensity-heading{justify-content:space-between;align-items:flex-start;display:flex}.intensity-heading>div>span{color:var(--muted);font-size:10px}.intensity-heading h3{margin:5px 0 0;font-size:17px}.level-number{color:var(--green);font:34px Georgia,serif}.level-slider{appearance:none;background:linear-gradient(90deg, var(--green) var(--value), #dfe3df var(--value));outline:none;width:100%;height:3px;margin:26px 0 7px}.level-slider::-webkit-slider-thumb{appearance:none;border:5px solid var(--green);cursor:pointer;background:#fff;border-radius:50%;width:18px;height:18px;box-shadow:0 1px 6px #0003}.level-ticks{color:#afb4b0;justify-content:space-between;font-size:9px;display:flex}.level-ticks .on{color:var(--green);font-weight:700}.intensity-footer{justify-content:space-between;align-items:center;gap:20px;margin-top:24px;display:flex}.intensity-footer p{color:var(--muted);gap:6px;max-width:310px;margin:0;font-size:10px;line-height:1.45;display:flex}.generate-button{white-space:nowrap}.history-rail{border-left:1px solid var(--line);z-index:5;background:#f8f8f5;width:268px;padding:24px 18px;position:fixed;top:72px;bottom:0;right:0}.rail-title{align-items:center;gap:8px;margin-bottom:18px;font-size:12px;font-weight:700;display:flex}.history-item{border:0;border-bottom:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;grid-template-columns:32px 1fr 16px;align-items:center;gap:9px;width:100%;padding:12px 0;display:grid}.history-level{width:30px;height:30px;color:var(--green);background:#e3ebe6;place-items:center;font:15px Georgia,serif;display:grid}.history-item strong,.history-item small{display:block}.history-item strong{font-size:11px}.history-item small{color:var(--muted);margin-top:4px;font-size:9px}.privacy-note{color:var(--muted);align-items:flex-start;gap:8px;font-size:9px;line-height:1.5;display:flex;position:absolute;bottom:22px;left:18px;right:18px}.privacy-note svg{color:var(--green);flex:none}.result-layout{grid-template-columns:minmax(0,1fr) 290px;gap:26px;min-height:calc(100vh - 72px);margin-right:268px;padding:34px;display:grid}.compare-panel{min-width:0}.secondary-button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:4px;align-items:center;gap:7px;padding:9px 12px;font-size:11px;display:flex}.result-actions{align-items:center;gap:8px;display:flex}.save-button{border:1px solid var(--green);background:var(--green);color:#fff;cursor:pointer;border-radius:4px;align-items:center;gap:7px;padding:9px 12px;font-size:11px;font-weight:700;display:flex}.save-button:hover{background:var(--green-2);border-color:var(--green-2)}.compare-canvas{background:#dcded9;width:100%;height:min(66vh,740px);margin-top:22px;position:relative;overflow:hidden}.compare-canvas>img,.after-image img{object-fit:contain;width:100%;height:100%;display:block}.after-image,.after-image img{position:absolute;inset:0}.demo-transform{filter:saturate(.97)contrast(1.025);transform:scale(1.003)}.demo-transform.level-3{filter:saturate(.98)contrast(1.035)brightness(1.005);transform:scale(1.006)}.demo-transform.level-4{filter:saturate(.99)contrast(1.045)brightness(1.01);transform:scale(1.009)}.demo-transform.level-5{filter:saturate()contrast(1.055)brightness(1.012);transform:scale(1.012)}.compare-line{z-index:4;pointer-events:none;background:#fff;width:1px;position:absolute;top:0;bottom:0}.compare-line span{width:36px;height:36px;color:var(--green);background:#fff;border-radius:50%;place-items:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 2px 12px #00000038}.compare-canvas input{opacity:0;cursor:ew-resize;z-index:5;width:100%;height:100%;position:absolute;inset:0}.image-label{z-index:4;color:#fff;background:#141917b8;padding:5px 8px;font-size:10px;position:absolute;top:14px}.image-label.before{left:14px}.image-label.after{right:14px}.demo-banner{color:var(--muted);align-items:center;gap:7px;margin-top:10px;font-size:10px;display:flex}.result-summary{border:1px solid var(--line);background:#fff;align-self:start;margin-top:85px;padding:24px}.summary-mark{width:40px;height:40px;color:var(--green);background:#e9f1ed;place-items:center;margin-bottom:20px;display:grid}.result-summary h3{margin:9px 0 22px;font-family:Georgia,Songti SC,serif;font-size:22px;font-weight:500;line-height:1.35}.change-item{border-top:1px solid var(--line);align-items:center;gap:8px;padding:11px 0;font-size:11px;display:flex}.change-item svg{color:var(--green)}.constraint-box{background:#f3f7f4;gap:9px;margin-top:17px;padding:14px;display:flex}.constraint-box svg{color:var(--green);flex:none}.constraint-box p{color:var(--muted);margin:0;font-size:9px;line-height:1.55}.constraint-box strong{color:var(--ink);font-size:10px;display:block}.medical-note{color:#8a8f8c;margin:18px 0 0;font-size:9px;line-height:1.6}.error-view{grid-template-columns:minmax(260px,380px) minmax(280px,430px);justify-content:center;align-items:center;gap:56px;min-height:calc(100vh - 72px);padding:48px 24px;display:grid}.error-view>img{object-fit:contain;background:#e6e8e3;width:100%;max-height:64vh}.error-icon{width:46px;height:46px;color:var(--rose);background:#f7e9eb;border-radius:50%;place-items:center;display:grid}.error-view h2{margin:18px 0 10px;font:500 28px Georgia,Songti SC,serif}.error-view p{color:var(--muted);font-size:13px;line-height:1.7}.error-actions{gap:10px;margin-top:24px;display:flex}@media (width<=1100px){.history-rail{display:none}.workspace-grid,.result-layout{margin-right:0}}@media (width<=760px){.topbar{grid-template-columns:1fr auto;height:62px;padding:0 16px}.stepper{border-top:1px solid var(--line);z-index:30;background:#fff;justify-content:space-around;gap:0;height:58px;position:fixed;bottom:0;left:0;right:0}.step{flex-direction:column;gap:3px;font-size:9px}.step span{width:19px;height:19px}.icon-button{display:none}main{min-height:calc(100vh - 62px);padding-bottom:58px}.upload-layout{grid-template-columns:1fr;gap:38px;min-height:calc(100vh - 120px);padding:42px 20px}.upload-copy h1{font-size:42px}.upload-copy>p{font-size:14px}.photo-guide{grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:28px}.photo-guide div{display:block}.photo-guide span{margin-bottom:5px;display:block}.photo-guide p{font-size:10px}.photo-guide strong{font-size:11px}.drop-zone{min-height:330px}.workspace-grid{display:block}.portrait-panel{height:auto;min-height:0;padding:14px;position:relative;top:0}.portrait-wrap{height:52vh}.report-panel{padding:28px 18px 50px}.report-header h2,.result-heading h2{font-size:25px}.table-row{grid-template-columns:.9fr 1.35fr 1.35fr;font-size:10px}.table-row span{padding:9px 6px 9px 0}.table-row span:not(:first-child){padding-left:6px}.avoid-grid{grid-template-columns:1fr}.intensity-footer{flex-direction:column;align-items:stretch}.generate-button{width:100%}.result-layout{grid-template-columns:1fr;padding:20px 14px 76px}.result-heading{align-items:center}.result-actions{flex-direction:column;align-items:stretch}.result-actions button{white-space:nowrap;justify-content:center}.compare-canvas{height:58vh}.result-summary{margin-top:0}.error-view{grid-template-columns:1fr;gap:26px;padding:28px 20px 90px}.error-view>img{max-height:38vh}}