:root{--paper:#f4f3ed;--ink:#283c32;--muted:#868c81;--line:#dedfd5;--green:#355644;--soft:#e6eadf;--radius:22px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Segoe UI','Microsoft YaHei',sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a,label{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,label:focus-visible,summary:focus-visible{outline:3px solid #d18e62;outline-offset:4px}button:disabled{cursor:not-allowed;opacity:.45}[hidden]{display:none!important}.top{max-width:1440px;margin:auto;height:104px;padding:0 64px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:600;letter-spacing:2px}.brand>svg{width:33px;height:33px;fill:none;stroke:var(--green);stroke-width:1.8}.wordmark{font-size:10px;letter-spacing:3px;margin-left:14px;font-weight:500}.device-tag{font-size:10px;letter-spacing:1.5px;display:flex;align-items:center;gap:8px}.device-tag i,.preview-note i{width:6px;height:6px;background:#74916c;border-radius:50%;display:inline-block}main{max-width:1312px;margin:auto;padding:55px 0 0}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding:0 0 40px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:600}.intro .eyebrow{margin:0 0 19px;color:#919584}.intro h1{font-size:42px;line-height:1.45;font-weight:500;letter-spacing:-1.8px;margin:0}.intro h1 span{color:#82907e}.intro-copy{color:var(--muted);line-height:2;font-size:13px;margin:0 0 12px;letter-spacing:.2px}.workspace{display:grid;grid-template-columns:1.08fr 1fr;gap:28px}.editor{background:#fffefa;border:1px solid var(--line);border-radius:var(--radius);padding:29px 32px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-head>div{display:flex;align-items:center;gap:13px}.step-no{font-size:10px;font-weight:500;color:#9aa08f;border:1px solid #dce0d3;border-radius:50%;width:29px;height:29px;display:inline-grid;place-items:center;flex-shrink:0}.section-head h2,.sync-panel h2{font-size:15px;font-weight:600;margin:0;letter-spacing:.4px}.small{font-size:10px}.muted{color:var(--muted)}.dropzone{margin:23px 0 31px;border:1px dashed #ccd2c2;border-radius:14px;padding:23px 10px 17px;background:#f8f9f3;text-align:center;transition:background .2s,border-color .2s}.dropzone.dragover{background:#e3ebda;border-color:#355644}.upload-symbol{width:46px;height:46px;background:#e9edde;border-radius:13px;display:grid;place-items:center;margin:auto auto 12px}.upload-symbol svg{width:28px;height:28px;fill:none;stroke:#63785b;stroke-width:1.4}.dropzone h3{font-size:14px;font-weight:500;margin:0 0 7px}.dropzone p{font-size:11px;color:#92978b;margin:0}.dropzone .drop-hint{font-size:10px;margin-top:15px;color:#a4a89b}.pick-actions{display:flex;gap:19px;align-items:center;justify-content:center;margin-top:17px}.button{display:inline-flex;align-items:center;justify-content:center;gap:32px;padding:12px 22px;border-radius:8px;border:1px solid transparent;font-size:12px;letter-spacing:.5px;font-weight:500;cursor:pointer;transition:background .18s,transform .18s}.button:active{transform:translateY(1px)}.primary{background:var(--green);color:#fff}.primary:hover:not(:disabled){background:#284733}.secondary{background:#edf0e7;border-color:#d4dccb;color:var(--ink)}.camera,.text-button{font-size:11px;color:#7d8974;cursor:pointer;background:none;border:0;padding:4px 0}.camera{border-bottom:1px solid #b5bfaa}.text-button:hover{color:#283c32}.controls{border-top:1px solid var(--line);padding-top:25px}.helper{font-size:11px;color:#959b8e;margin:11px 0 21px 42px}.slider-row{display:flex;gap:20px;align-items:center;margin:20px 0;font-size:11px}.slider-row label{width:65px;flex-shrink:0}.slider-row input{width:100%;min-width:0;height:4px;accent-color:var(--green);cursor:pointer}.slider-row output{width:36px;text-align:right;color:#89917e;font-size:10px;flex-shrink:0}.option-row{display:flex;gap:14px;align-items:center;margin:23px 0;font-size:11px}.option-row>span{width:70px;flex-shrink:0}.segments{display:flex;gap:4px;padding:3px;background:#eff1e9;border-radius:7px}.segments button{border:0;background:none;padding:7px 19px;color:#929a88;font-size:11px;border-radius:5px}.segments button[aria-pressed=true]{background:#fffefa;color:var(--ink);box-shadow:0 1px 3px #0000000c}.colors{display:flex;gap:11px;align-items:center;flex:1}.colors button{width:20px;height:20px;border:1px solid #d6d9ce;border-radius:50%;background:var(--swatch);position:relative}.colors button[aria-pressed=true]:after{content:'';position:absolute;inset:-4px;border:1px solid #728569;border-radius:50%}.toggle-row{display:flex;align-items:center;gap:23px;margin-top:25px}.toggle-row label{display:flex;gap:7px;align-items:center;font-size:11px}.toggle-row input{accent-color:var(--green);margin:0;width:13px;height:13px}.toggle-row>.small{margin-left:auto;font-size:9px}.preview-panel{border-radius:var(--radius);background:#e7eadd;position:relative;min-height:651px;overflow:hidden;display:flex;flex-direction:column}.preview-top{display:flex;align-items:center;justify-content:space-between;padding:25px 30px;color:#819073;z-index:2}.preview-top .eyebrow{font-size:9px}.preview-mode{border:1px solid #cdd4c2;padding:7px 10px;border-radius:20px;background:#e9eddf;color:#718265;font-size:9px;display:flex;align-items:center;gap:6px}.preview-mode>span{display:inline-block;border:1px solid #8da17f;width:7px;height:7px;border-radius:50%}.preview-mode[aria-pressed=true]{background:#355644;color:#fff}.watch-wrap{position:relative;margin:auto;display:grid;place-items:center;width:400px;height:490px;flex:1;max-width:100%;background:radial-gradient(ellipse at center,#c8d0bb55,transparent 69%)}.watch-body{width:334px;height:334px;background:linear-gradient(135deg,#5c645b,#232923 36%,#41483d 70%,#262c27);border-radius:50%;padding:13px;position:relative;box-shadow:0 30px 40px -20px #1c271a65,inset 0 0 0 2px #6b7467,0 0 0 1px #66705e;z-index:1}.watch-rim{width:100%;height:100%;border-radius:50%;padding:7px;background:#111b16;box-shadow:inset 0 0 0 1px #72776a,inset 0 0 0 5px #20291f}.watch-rim canvas{border-radius:50%;width:100%;height:100%;display:block;touch-action:none;cursor:grab}.watch-rim canvas:active{cursor:grabbing}.watch-button{position:absolute;width:7px;height:30px;border-radius:0 4px 4px 0;right:-5px;background:linear-gradient(90deg,#344134,#56664a);z-index:-1;transform:rotate(-27deg)}.watch-button.b1{top:76px;right:4px}.watch-button.b2{bottom:74px;right:4px;transform:rotate(27deg)}.watch-strap{position:absolute;width:139px;height:174px;background:linear-gradient(90deg,#87957b,#aab49c 7%,#a2ad94 15%,#879577 50%,#a3af96 89%,#b3bea8 94%,#7b886d);border-left:1px solid #8e9b80;border-right:1px solid #849374;box-shadow:inset 0 0 4px #65765377}.watch-strap:before{content:'';position:absolute;inset:8px 10px;border-left:1px solid #c2cab470;border-right:1px solid #c2cab470}.top-strap{top:0;transform:perspective(500px) rotateX(15deg);border-radius:20px 20px 0 0}.bottom-strap{bottom:0;border-radius:0 0 20px 20px}.bottom-strap:after{content:'';position:absolute;left:62px;bottom:12px;width:14px;height:8px;border-radius:4px;background:#5f7053;box-shadow:0 -18px #5f7053,0 -36px #5f7053,0 -54px #5f7053}.preview-caption{display:flex;align-items:center;justify-content:space-between;padding:16px 30px 11px;font-size:9px;color:#8a957f;z-index:2}.preview-note{border-top:1px solid #d4dbc8;margin:0 30px;padding:17px 0;display:flex;justify-content:center;gap:7px;align-items:center;font-size:10px;color:#86967b}.preview-note i{width:4px;height:4px}.sync-panel{margin:26px 0 0;border:1px solid var(--line);border-radius:17px;background:#fffefa;padding:28px 32px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.sync-intro{display:flex;gap:14px;align-items:center}.sync-intro p{font-size:11px;color:#92998a;margin:8px 0 0}.upload-button{min-width:188px;font-size:13px;padding:16px 24px}.upload-button span{margin-left:auto}.bottom-line{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:#9da291;margin:20px 1px 27px;gap:20px}.bottom-line>span{display:flex;align-items:center;gap:7px}.bottom-line svg{width:15px;height:15px;stroke:#8e9a7e;fill:none;stroke-width:1.3}.privacy{color:#969d8d;font-size:11px;border-top:1px solid var(--line);padding:22px 1px}.privacy summary{cursor:pointer;display:flex;justify-content:space-between;list-style:none}.privacy p{line-height:1.9;max-width:900px}.privacy summary::-webkit-details-marker{display:none}footer{max-width:1312px;margin:20px auto 0;border-top:1px solid var(--line);padding:29px 0 35px;display:flex;justify-content:space-between;align-items:center;color:#a0a694;font-size:10px}.footer-brand{color:#78856d;font-size:17px}.footer-brand .wordmark{font-size:8px;margin-left:1px;letter-spacing:2px}footer>span:last-child{font-size:8px;letter-spacing:1px}input[type=file]{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:#273e31;color:#fff;padding:13px 20px;border-radius:10px;max-width:min(90vw,550px);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:9;font-size:12px}#toast.show{opacity:1;transform:translate(-50%,0)}#pair-result{width:100%;border-top:1px solid var(--line);padding-top:25px}.pair-main{display:flex;justify-content:space-between;align-items:center}.pair-main .eyebrow{color:#8c977f;font-size:9px}.pair-code{font-size:36px;letter-spacing:9px;font-weight:500;margin-top:9px}.pair-instructions{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:20px}.pair-instructions p{font-size:11px;line-height:1.9;margin:0}.pair-instructions b{display:block;font-weight:500;margin-bottom:5px}.pair-instructions span{color:#919b88}.pair-footer{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid #e9ebdf;margin-top:23px;padding-top:17px;font-size:10px;color:#8a957e}.pair-footer>div{display:flex;gap:20px}.danger{color:#b77865}.dropzone.has-photo{background:#eff2e7}.dropzone.has-photo .upload-symbol{background:#dbe5ce}.dropzone.has-photo h3{overflow-wrap:anywhere}
@media(min-width:1450px){main,footer{max-width:1232px}.top{max-width:1360px}.intro h1{font-size:46px}}
@media(max-width:1439px){main,footer{margin-left:6.4vw;margin-right:6.4vw}.top{padding:0 6.4vw}.editor{padding:25px}.preview-panel{min-height:640px}.watch-body{width:300px;height:300px}.watch-wrap{height:460px;width:360px}.helper{margin-left:0}.toggle-row>.small{display:none}.option-row{gap:12px}.segments button{padding:7px 15px}}
@media(max-width:900px){main{padding-top:37px}.intro h1{font-size:36px}.workspace{gap:18px;grid-template-columns:1fr 1fr}.editor{padding:20px}.watch-body{width:260px;height:260px;padding:11px}.watch-rim{padding:6px}.watch-wrap{height:420px;width:285px}.watch-strap{width:117px}.bottom-strap:after{left:50px}.preview-top{padding:23px 20px}.preview-mode{font-size:8px}.preview-caption{padding:16px 20px 10px}.preview-note{margin:0 20px;font-size:9px}.segments button{padding:7px 10px}.section-head h2{font-size:13px}.section-head .small{display:none}.option-row .text-button{font-size:10px}.colors{gap:9px}.slider-row{gap:10px}.step-no{width:25px;height:25px}.intro-copy{font-size:11px}.pair-instructions{gap:15px}}
@media(max-width:680px){.top{height:76px;padding:0 22px}.brand{font-size:19px;gap:7px}.brand>svg{width:29px;height:29px}.wordmark{font-size:8px;margin-left:10px;letter-spacing:2px}.device-tag{font-size:8px;letter-spacing:.7px;gap:5px}main{margin:0 18px;padding-top:31px}.intro{padding:0 7px 27px;display:block}.intro .eyebrow{font-size:8px;margin-bottom:11px}.intro h1{font-size:32px;line-height:1.45;letter-spacing:-1px}.intro-copy{font-size:11px;margin:16px 0 0;line-height:1.8}.intro-copy br{display:none}.workspace{display:flex;flex-direction:column;gap:18px}.editor{padding:21px;border-radius:18px;display:contents}.section-head h2{font-size:14px}.dropzone{padding:20px 12px;margin:0;background:#fffefa;order:0;border-radius:16px}.editor>.section-head{display:none}.dropzone .upload-symbol{width:40px;height:40px;margin-bottom:11px}.dropzone p{font-size:10px}.pick-actions{margin-top:15px}.drop-hint{display:none}.controls{order:2;background:#fffefa;border:1px solid var(--line);border-radius:17px;padding:23px}.helper{font-size:10px;margin-top:11px}.preview-panel{order:1;min-height:440px;border-radius:18px}.preview-top{padding:18px 23px}.watch-wrap{height:333px;min-height:333px;width:320px}.watch-body{width:264px;height:264px}.watch-strap{height:130px;width:111px}.bottom-strap:after{left:47px;height:6px;bottom:6px;box-shadow:0 -15px #5f7053,0 -30px #5f7053}.preview-caption{padding:14px 23px 12px;font-size:8px}.preview-note{padding:13px 0;margin:0 23px;font-size:9px}.option-row{gap:15px}.segments button{padding:8px 20px}.colors{gap:13px}.slider-row{margin:22px 0;gap:17px}.toggle-row>.small{display:block;font-size:8px}.toggle-row{gap:20px}.sync-panel{margin-top:18px;padding:24px 23px;gap:20px;border-radius:17px}.sync-panel h2{font-size:14px}.sync-intro p{font-size:10px;line-height:1.7}.sync-intro{align-items:flex-start}.upload-button{width:100%;padding:16px 20px}.bottom-line{align-items:flex-start;flex-direction:column;gap:13px;margin:20px 6px 25px;font-size:9px}.bottom-line .text-button{font-size:9px}.privacy{margin:0 6px;font-size:10px;padding:19px 0}footer{margin:12px 24px 0;padding:24px 0 28px;flex-wrap:wrap;gap:18px}footer>span:nth-child(2){font-size:9px}footer>span:last-child{width:100%;font-size:7px}.pair-code{font-size:29px;letter-spacing:5px}.pair-main .button{padding:10px 13px;font-size:10px}.pair-instructions{display:flex;flex-direction:column;gap:13px;margin-top:23px}.pair-instructions b{margin:0}.pair-instructions p{font-size:10px}.pair-footer{flex-direction:column;align-items:flex-start;gap:12px;font-size:9px}.pair-footer .text-button{font-size:9px}.pair-footer>div{gap:25px}.section-head .text-button{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.data-slots{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:24px 0}.data-slots label{display:grid;gap:8px;font-size:13px;color:#48604e}.data-slots select{width:100%;padding:10px;border:1px solid #d7ddcf;border-radius:9px;background:#fafbf5;color:#294335;font:inherit}