@font-face{font-family:Inter;src:url('./assets/fonts/Inter-variable.ttf') format('truetype');font-style:normal;font-weight:100 900;font-display:swap}
:root{--bg:#fcfdfd;--ink:#192024;--muted:#5a686f;--green:#059467;--green-dark:#046c4e;--tint:#e6f6ef;--line:#dfe9e5;--surface:#f3f7f5;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:162px}body{margin:0}button,input,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button,a,summary{touch-action:manipulation}button{border:0}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--green-dark);outline-offset:5px}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em}h1{font-size:clamp(30px,3.5vw,44px);line-height:1.12;font-weight:670;margin-bottom:16px}h2{font-size:30px;line-height:1.2;font-weight:650}p,li{line-height:1.6}svg{width:24px;height:24px;flex-shrink:0}img{max-width:100%;height:auto}.wrap{width:min(1160px,calc(100% - 56px));margin:auto}.skip{position:fixed;z-index:100;top:8px;left:8px;transform:translateY(-150%);padding:12px 20px;background:var(--green-dark);color:white;border-radius:8px}.skip:focus{transform:translateY(0)}.site-header{position:sticky;top:0;z-index:20;background:#fff;box-shadow:0 1px 0 var(--line)}.header-inner,.language-inner{max-width:1160px;margin:auto;display:flex;align-items:center;justify-content:space-between}.header-inner{min-height:76px;gap:24px}.brand{display:flex;align-items:center}.brand img{width:164px;aspect-ratio:1600/408}.call-link{display:flex;align-items:center;gap:9px;min-height:44px;padding:10px 16px;border:1px solid var(--line);border-radius:999px;font-size:14px;font-weight:600}.call-link svg{width:17px;height:17px;color:var(--green-dark)}.call-link:hover{background:var(--tint)}.language-bar{border-top:1px solid #edf2f0;background:#f7faf8}.language-inner{min-height:60px;gap:18px}.language-label{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px}.language-label svg{width:18px;height:18px}.languages{display:flex;gap:8px}.languages button{display:flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:8px 15px;border:1px solid transparent;border-radius:9px;background:transparent;font-size:14px;font-weight:600;color:#44534d}.languages button small{font-weight:450;margin-left:5px;font-size:11px}.languages button[aria-pressed=true]{background:#fff;border-color:#a9d8c6;color:var(--green-dark);box-shadow:0 1px 3px #153f2c09}.languages button:hover{background:var(--tint)}.languages button svg{width:15px;height:15px}.languages button[aria-busy=true]{opacity:.5}.eyebrow{display:flex;align-items:center;gap:8px;color:var(--green-dark);font-size:12px;font-weight:650;letter-spacing:.035em;margin-bottom:14px}.eyebrow svg{width:17px;height:17px}.lead{color:var(--muted);font-size:18px;line-height:1.5;margin-bottom:0}.back-link{display:inline-block;font-size:13px;color:var(--muted);padding:16px 0;margin-bottom:24px}.back-link:hover,.text-link:hover{color:var(--green-dark);text-decoration:underline}.intro-row{display:flex;justify-content:space-between;align-items:center;gap:32px}.model-badge{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 15px;font-size:12px;color:var(--muted);white-space:nowrap}.tasks{margin:34px 0 22px;scroll-margin-top:160px}.tasks h2{font-size:18px;letter-spacing:-.01em;margin-bottom:14px}.task-grid{display:grid;grid-template-columns:1.25fr 1.25fr 1fr 1fr 1.05fr;gap:10px}.task{display:flex;align-items:center;gap:12px;min-height:80px;padding:15px;background:#fff;border:1px solid var(--line);border-radius:14px;text-align:left;color:var(--ink);font-size:14px;line-height:1.35;font-weight:600;transition:background .15s,border-color .15s}.task-icon{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--surface);flex-shrink:0}.task-warm .task-icon{color:#a44b17;background:#fff0e5}.task-cool .task-icon{color:#23688b;background:#eaf5fc}.task[aria-pressed=true]{border:2px solid var(--green);padding:14px;background:var(--tint);color:var(--green-dark)}.task:hover{border-color:var(--green)}.workspace{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:20px;background:white;overflow:hidden;box-shadow:0 8px 40px #16372b06;scroll-margin-top:156px}.device-card{padding:18px 26px 22px}.device-top{display:flex;align-items:center;justify-content:space-between;gap:14px;color:var(--muted);font-size:13px}.icon-button{background:var(--surface);border-radius:8px;display:flex;align-items:center;justify-content:center;width:44px;height:44px;color:var(--green-dark)}.icon-button:hover{background:var(--tint)}.icon-button svg{width:18px;height:18px}.photo-stage{position:relative;width:min(100%,430px);margin:-12px auto -14px;aspect-ratio:1}.photo-stage>img{width:100%;height:100%;object-fit:contain;display:block}.hotspot,.lock-partner{position:absolute;width:38px;height:38px;border:3px solid var(--green);background:transparent;border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 3px #ffffffcc;visibility:hidden;z-index:2;padding:0}.hotspot span{position:absolute;top:-13px;right:-8px;font-size:10px;font-weight:750;line-height:20px;min-width:20px;background:var(--green-dark);color:#fff;border:2px solid white;border-radius:50%;box-sizing:content-box}.hotspot.active,.lock-partner.active{visibility:visible;box-shadow:0 0 0 7px #05946725,0 0 0 3px #ffffffdd}.photo-stage.exploring .hotspot{visibility:visible;border-color:#355c4c;opacity:.65}.photo-stage.exploring .hotspot.active{opacity:1;border-color:var(--green)}.lock-partner{pointer-events:none}.photo-note{text-align:center;font-size:11px;line-height:1.4;color:var(--muted);margin:2px 0 18px}.control-chips{display:flex;justify-content:center;gap:7px;flex-wrap:wrap}.control-chips button{border:1px solid var(--line);background:#fff;border-radius:8px;display:flex;gap:7px;align-items:center;min-height:40px;padding:7px 10px;font-size:12px;color:var(--muted);font-weight:500}.control-chips button>span{font-size:10px;color:var(--green-dark);font-weight:750;min-width:17px;height:17px;line-height:17px;border-radius:50%;background:var(--tint)}.control-chips button[aria-pressed=true]{background:var(--tint);border-color:var(--green);color:var(--green-dark)}.control-chips button:hover{border-color:var(--green)}.instruction-card{border-left:1px solid var(--line);padding:26px 30px 22px;background:linear-gradient(160deg,#f0f9f4,#f8fbf9);display:flex;flex-direction:column}.view-switch{display:flex;gap:3px;background:#e4eee8;border-radius:10px;padding:4px;margin-bottom:28px}.view-switch button{flex:1;border-radius:7px;background:transparent;color:#4d6258;font-size:12px;line-height:1.4;padding:10px 7px;min-height:44px;font-weight:600}.view-switch button[aria-pressed=true]{background:white;color:var(--green-dark);box-shadow:0 1px 4px #2947340a}#instructions{flex:1}#instructions h2{font-size:clamp(25px,2.3vw,32px);line-height:1.2;margin-bottom:18px}#instructions h2:focus{outline:none}.step-body{font-size:20px;line-height:1.6;margin-bottom:24px;max-width:38ch}.step-meta{display:flex;justify-content:space-between;gap:12px;font-size:12px;line-height:1.5;color:var(--green-dark);font-weight:600;margin:0 0 12px}.step-progress{display:flex;gap:6px;margin-bottom:28px}.step-progress span{background:#d9e8df;flex:1;height:4px;border-radius:4px}.step-progress .filled{background:var(--green)}.check-box{display:flex;gap:12px;padding:18px;border:1px solid #dbece2;background:#fff;border-radius:12px;margin:0 0 25px;font-size:14px;line-height:1.6}.check-box>svg{color:var(--green);width:20px;height:20px;margin-top:2px}.check-box strong{font-weight:650;display:block;margin-bottom:5px;color:var(--green-dark)}.check-box p{margin:0}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:13px 20px;font:inherit;font-size:14px;font-weight:600;border-radius:10px;line-height:1.4;text-align:center}.primary{background:var(--green);color:#fff;border:1px solid var(--green)}.primary:hover{background:var(--green-dark);border-color:var(--green-dark)}.secondary{background:white;border:1px solid #cbdcd2;color:#3e5548}.secondary:hover:not(:disabled){background:var(--tint)}.primary svg,.secondary svg{width:18px;height:18px}.step-actions{display:flex;justify-content:space-between;gap:12px;margin-top:30px}.step-actions .primary{min-width:150px}.finish-actions{display:flex;align-items:stretch;gap:10px;flex-wrap:wrap}.finish-actions .text-link{width:100%;margin-top:6px}.guide-only{font-size:11px;line-height:1.6;color:var(--muted);border-top:1px solid #dce9e1;padding-top:15px;margin:24px 0 0}.start-symbol,.done-symbol{width:56px;height:56px;border-radius:16px;background:#daf0e4;color:var(--green-dark);display:flex;align-items:center;justify-content:center;margin:10px 0 24px}.start-symbol svg,.done-symbol svg{width:29px;height:29px}.match-note{display:flex;gap:10px;align-items:flex-start;max-width:900px;color:var(--muted);font-size:12px;line-height:1.6;margin:18px 0 38px}.match-note svg{width:17px;height:17px;margin-top:1px}.numbers-card{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:62px}.numbers-card summary{padding:22px 24px;font-size:18px;font-weight:600}summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;cursor:pointer}summary::-webkit-details-marker{display:none}summary svg{width:20px;height:20px;color:var(--green-dark);transition:transform .2s}details[open]>summary svg{transform:rotate(45deg)}.numbers-body{padding:0 24px 24px;color:var(--muted)}.numbers-body>p{max-width:790px}.number-examples{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:24px 0}.number-examples>div{border:1px solid var(--line);border-radius:12px;padding:20px}.example-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;margin-bottom:14px}.heat{color:#a44b17;background:#fff0e5}.cool{color:#23688b;background:#eaf5fc}.number-pair{display:flex;align-items:center;gap:20px;color:var(--muted);font-size:12px}.number-pair b{display:block;color:var(--ink);font-size:25px;font-weight:550;margin-top:6px}.number-pair small{display:block;color:var(--muted);font-size:14px;margin-top:5px;font-weight:450}.number-examples p{font-size:15px}.fine{font-size:12px;color:var(--muted)}.help-section{display:grid;grid-template-columns:.6fr 1fr;gap:65px;margin-bottom:64px;scroll-margin-top:160px}.section-heading h2{font-size:36px;margin-bottom:15px}.section-heading>p:not(.eyebrow){color:var(--muted);max-width:280px}.help-list{border-top:1px solid var(--line)}.help-list details{border-bottom:1px solid var(--line)}.help-list summary{padding:21px 2px;font-size:16px;font-weight:550;line-height:1.5}.help-list summary:hover{color:var(--green-dark)}.help-body{padding:0 26px 20px 0;font-size:15px}.help-body>p{color:var(--muted);margin-bottom:10px}.help-body ol{padding-left:22px;margin-bottom:0}.help-body li{padding:5px 0 5px 6px}.help-body li::marker{color:var(--green-dark);font-weight:650}.keep-section{display:grid;grid-template-columns:1fr 1fr;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin-bottom:40px}.keep-copy,.support-copy{padding:34px 36px}.keep-copy>svg{color:var(--green-dark);margin-bottom:18px}.keep-section h2{font-size:26px;margin-bottom:14px}.keep-section p{font-size:14px;color:var(--muted)}.keep-copy .fine{font-size:11px;margin:15px 0 0}.support-copy{border-left:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;background:#fff}.phone-number{display:flex;align-items:center;gap:10px;font-size:25px;font-weight:600;color:var(--green-dark);letter-spacing:-.03em;margin:14px 0 20px}.phone-number svg{width:21px;height:21px}.text-link{color:var(--green-dark);font-size:14px;font-weight:600}.site-footer{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;align-items:start;color:var(--muted);font-size:12px;padding-bottom:30px}.site-footer>div{max-width:710px}.site-footer strong{color:var(--ink);font-weight:550}.site-footer p{margin:8px 0}.site-footer>a{color:var(--green-dark)}.site-footer .privacy{width:100%;font-size:11px}.home-intro{text-align:center;max-width:650px;margin:55px auto 36px}.home-intro .eyebrow{justify-content:center}.home h1{font-size:46px}.home-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:940px;margin:auto}.home-card{border:1px solid var(--line);background:white;border-radius:20px;overflow:hidden;transition:border-color .15s,box-shadow .15s}.home-card:hover{border-color:var(--green);box-shadow:0 8px 40px #0c4b2c0c}.home-photo{height:285px;display:flex;justify-content:center;padding:12px}.home-photo img{object-fit:contain;width:100%;height:100%}.home-card-body{padding:25px 30px 30px;border-top:1px solid var(--line);background:#f7fbf8}.home-card h2{font-size:25px;margin-bottom:12px}.home-card p{font-size:14px;color:var(--muted)}.home-card .model{font-size:11px;color:var(--green-dark);margin-bottom:12px}.home-card .primary{margin-top:10px}.home-language-note{text-align:center;font-size:13px;color:var(--muted);margin:28px 0 55px}.language-error:empty{display:none}.language-error{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#fff6ed;color:#713b15;border:1px solid #e3c6a4;z-index:30;padding:18px;border-radius:10px;box-shadow:0 6px 20px #0002}dialog{border:1px solid var(--line);border-radius:18px;max-width:min(90vw,740px);max-height:90vh;padding:24px;color:var(--ink)}dialog::backdrop{background:#16221acc;backdrop-filter:blur(3px)}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:24px}.dialog-top h2{font-size:22px;margin:0}.dialog-top button{white-space:nowrap}dialog>img{display:block;max-height:65vh;object-fit:contain;margin:auto}dialog>p{text-align:center;margin:0;color:var(--muted);font-size:13px}.load-error{padding:60px 30px;max-width:760px;margin:auto}.print-guide{display:none}::selection{background:#c8ecdc}
@media(min-width:761px) and (max-width:1220px){.header-inner,.language-inner{margin:0 28px}.task{gap:8px;padding:12px;font-size:13px}.task[aria-pressed=true]{padding:11px}.task-icon{width:32px;height:32px}.instruction-card{padding:24px}.device-card{padding:18px 18px 22px}.model-badge{white-space:normal}.help-section{gap:35px}}
@media(max-width:760px){html{scroll-padding-top:135px}.wrap{width:calc(100% - 32px)}.header-inner{min-height:60px;margin:0 16px;gap:14px}.brand img{width:135px}.call-link{font-size:12px;padding:8px 11px;gap:7px;min-height:40px}.language-inner{margin:0 12px;min-height:62px;justify-content:center}.language-label{display:none}.languages{width:100%;gap:3px}.languages button{flex:1;min-width:0;padding:6px 5px;min-height:48px;font-size:12px;gap:4px}.languages button small{display:block;font-size:9px;margin:2px 0 0;font-weight:450}.languages button svg{width:13px;height:13px}.back-link{font-size:11px;margin:0;padding:18px 0 20px}.guide-intro h1{font-size:31px;line-height:1.14;margin-bottom:12px}.intro-row{display:block}.model-badge{display:none}.eyebrow{font-size:11px;margin-bottom:12px}.lead{font-size:15px;line-height:1.6}.tasks{margin:24px 0 18px;scroll-margin-top:135px}.tasks h2{font-size:17px;margin-bottom:13px}.task-grid{grid-template-columns:repeat(6,1fr);gap:8px}.task{grid-column:span 2;display:flex;flex-direction:column;align-items:center;text-align:center;gap:9px;min-height:84px;padding:12px 6px;font-size:11px;border-radius:12px}.task[aria-pressed=true]{padding:11px 5px}.task-warm,.task-cool{grid-column:span 3;flex-direction:row;justify-content:center;min-height:66px;font-size:13px;padding:12px 8px}.task-warm[aria-pressed=true],.task-cool[aria-pressed=true]{padding:11px 7px}.task-icon{width:30px;height:30px;border-radius:9px}.task-icon svg{width:21px;height:21px}.workspace{grid-template-columns:1fr;scroll-margin-top:132px;border-radius:16px}.device-card{padding:12px 14px 16px}.device-top{font-size:11px}.icon-button{width:40px;height:40px}.photo-stage{width:min(100%,280px);margin:-16px auto -12px}.hotspot,.lock-partner{width:28px;height:28px;border-width:2px}.hotspot span{font-size:9px;line-height:16px;min-width:16px;top:-10px;right:-8px}.photo-note{font-size:10px;margin-bottom:12px}.control-chips{gap:5px}.control-chips button{font-size:10px;min-height:36px;padding:6px 8px;gap:5px}.control-chips button>span{font-size:9px;width:15px;height:15px;line-height:15px;min-width:15px}.instruction-card{border-left:0;border-top:1px solid var(--line);padding:18px}.view-switch{margin-bottom:22px}.view-switch button{font-size:11px;padding:9px 6px;min-height:44px}#instructions h2{font-size:26px;margin-bottom:14px}.step-body{font-size:18px;line-height:1.55;margin-bottom:20px}.step-meta{font-size:11px}.step-progress{margin-bottom:22px}.check-box{font-size:13px;padding:15px;gap:9px;margin-bottom:20px}.step-actions{margin-top:22px}.step-actions .primary{min-width:130px}.primary,.secondary{font-size:13px;padding:12px 16px}.guide-only{font-size:10px;margin-top:20px}.start-symbol,.done-symbol{width:44px;height:44px;margin:0 0 18px}.start-symbol svg,.done-symbol svg{width:24px;height:24px}.match-note{font-size:11px;margin:16px 0 26px;gap:8px}.match-note svg{width:15px;height:15px}.numbers-card{margin-bottom:38px;border-radius:12px}.numbers-card summary{padding:19px 17px;font-size:16px}.numbers-body{padding:0 17px 18px;font-size:14px}.number-examples{grid-template-columns:1fr;gap:12px}.number-examples>div{padding:16px}.number-pair{justify-content:space-between}.help-section{grid-template-columns:1fr;gap:14px;margin-bottom:38px;scroll-margin-top:135px}.section-heading h2{font-size:30px;margin-bottom:10px}.section-heading>p:not(.eyebrow){font-size:14px;margin-bottom:10px}.help-list summary{font-size:14px;padding:18px 0}.help-body{font-size:14px;padding-right:6px}.keep-section{grid-template-columns:1fr;border-radius:14px;margin-bottom:30px}.keep-copy,.support-copy{padding:24px}.keep-section h2{font-size:24px}.keep-section p{font-size:13px}.support-copy{border-left:0;border-top:1px solid var(--line)}.phone-number{font-size:23px}.site-footer{font-size:11px;gap:12px}.site-footer p{line-height:1.6}.home-intro{margin:34px auto 24px}.home h1{font-size:33px}.home-grid{grid-template-columns:1fr;gap:18px}.home-photo{height:235px;padding:5px}.home-card-body{padding:22px}.home-card h2{font-size:24px}.home-language-note{margin:24px 0 35px}.dialog-top{gap:10px}.dialog-top h2{font-size:17px}.dialog-top .secondary{padding:10px;font-size:12px}dialog{padding:16px;max-width:94vw}.language-error{width:calc(100% - 32px);font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media print{@page{size:Letter;margin:14mm}body{background:white!important;color:#192024!important;font-size:10pt}.skip,#app>header,#app>main,#app>footer,#language-error,dialog{display:none!important}.print-guide{display:block!important}.print-guide header{display:flex;justify-content:space-between;align-items:center;font-size:8pt;color:#4f6258;padding-bottom:10px;border-bottom:1px solid #b9d5c7}.print-guide header img{width:130px}.print-guide h1{font-size:24pt;margin:18px 0 5px}.print-model{font-size:9pt;color:#50645a;margin-bottom:5px}.print-intro{display:flex;gap:20px;align-items:center;margin:8px 0 10px}.print-intro img{width:105px;height:105px;object-fit:contain}.print-intro p{font-size:9pt;line-height:1.45}.print-goals{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px}.print-goals section{break-inside:avoid}.print-goals h2{font-size:12pt;color:#046c4e;margin:0 0 5px;letter-spacing:-.02em}.print-goals ol{margin:0;padding-left:18px}.print-goals li{font-size:9pt;line-height:1.4;margin:0 0 5px;padding-left:2px}.print-goals section>p{font-size:8pt;line-height:1.4;color:#465d50;margin:7px 0 0}.print-contact{margin-top:18px;padding-top:10px;border-top:1px solid #b9d5c7;break-inside:avoid}.print-contact h2{font-size:11pt;margin:0 0 5px}.print-contact p{font-size:9pt;line-height:1.4;margin:3px 0}.print-guide>.fine{font-size:7.5pt;line-height:1.4;margin-top:12px}*{-webkit-print-color-adjust:exact;print-color-adjust:exact}}
/* Keep the current action and its picture together on a phone. */
.tasks,.workspace,.help-section{scroll-margin-top:0}
.step-visual{display:none}
@media(max-width:760px){
 .workspace.has-task .device-card{display:none}
 .workspace.has-task .instruction-card{border-top:0}
 .workspace.has-task .view-switch{margin-bottom:18px}
 .workspace.has-task .step-progress{margin-bottom:18px}
 .workspace.has-task .step-body{margin-bottom:14px}
 .step-visual{display:block;background:white;border:1px solid var(--line);border-radius:12px;position:relative;margin-bottom:18px;padding:4px 5px 8px}
 .step-visual>.icon-button{position:absolute;right:6px;top:6px;z-index:3;width:36px;height:36px}
 .step-photo{width:min(100%,228px);aspect-ratio:1;margin:auto;position:relative}
 .step-photo img{display:block;width:100%;height:100%;object-fit:contain}
 .step-ring{position:absolute;width:27px;height:27px;border:2px solid var(--green);border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 4px #05946722,0 0 0 2px white;pointer-events:none}
 .step-visual>p{text-align:center;font-size:9px;color:var(--muted);line-height:1.4;margin:0}
 .workspace.has-task .check-box{padding:13px;font-size:12px;margin-bottom:16px}
 .workspace.has-task .step-actions{margin-top:18px}
}
/* Brand accent stays emerald; filled buttons use the accessible dark tone. */
.primary{background:var(--green-dark);border-color:var(--green-dark)}
.primary:hover{background:#03553e;border-color:#03553e}
@media(max-width:360px){.languages button svg{display:none}}
.download-actions{display:flex;gap:10px;flex-wrap:wrap}