:root{color-scheme:light;--ink:#253850;--muted:#66778b;--blue:#2763bb;--line:#e3e4df;--paper:#faf7f0;--card:#fffdf9}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 "Segoe UI","Microsoft YaHei UI",sans-serif}a{color:var(--blue)}button,input,select{font:inherit}button,a,select,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #8bb4ef;outline-offset:4px}.wrap{max-width:1120px;margin:auto;padding:0 32px}header{border-bottom:1px solid var(--line)}.header-row{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:700;text-decoration:none;color:var(--ink)}.brand small{display:block;font-size:10px;letter-spacing:.15em}.language-label{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}select{background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:9px 12px}main{padding-top:58px!important;padding-bottom:46px!important}.eyebrow{font-size:11px;font-weight:600;letter-spacing:.16em;color:#94704f}h1{font-size:clamp(30px,4.5vw,50px);line-height:1.25;letter-spacing:-.035em;margin:14px 0 18px}h1:focus{outline:none}h2{font-size:22px;line-height:1.4;margin:12px 0}h3{font-size:18px;line-height:1.45;margin:12px 0 8px}p{margin:12px 0}.lead{color:var(--muted);font-size:18px;max-width:730px}.entry-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;margin-top:32px}.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px}.step-label{font-size:12px;color:#80664e;letter-spacing:.04em}.button,button.secondary{display:inline-block;border:0;border-radius:11px;padding:12px 20px;text-decoration:none;font-weight:600;background:var(--blue);color:#fff}.button:hover{background:#1d509d}.secondary,button.secondary{background:#eaf0f8;color:var(--blue)}.fine{font-size:13px;color:var(--muted);line-height:1.7}.text-link{font-size:14px;text-underline-offset:4px}input{width:100%;min-width:0;padding:12px;margin:8px 0 14px;border:1px solid #ced9e7;border-radius:10px;color:var(--ink);background:#f5f8fc;font-size:13px;direction:ltr}ol{padding-left:22px}li{margin:10px 0}.copy-status{display:block;font-size:13px;color:var(--blue);min-height:1em}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin:44px 0 18px}.section-heading h2{margin-bottom:0}.section-heading .fine{max-width:340px;margin-bottom:0}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.guide-card{min-width:0}.step-number{display:inline-grid;place-items:center;width:29px;height:29px;border-radius:50%;background:#e8eff8;color:var(--blue);font-weight:700;font-size:14px}.guide-card>p:not(.fine){font-size:14px;color:var(--muted);min-height:74px}.screenshot{display:block;width:100%;padding:0;overflow:hidden;border:1px solid #d9e2ed;border-radius:12px;background:#eaf3ff;text-align:left;color:var(--blue)}.screenshot img{display:block;width:100%;height:auto}.screenshot span{display:block;padding:8px 12px;font-size:12px;background:#f6f9ff}.screenshot:hover{border-color:#729dd5;box-shadow:0 5px 20px #244b7810}.overlay-shot{background:#1a2533}.overlay-shot img{margin:12px 0}.help-section{border-top:1px solid var(--line);margin-top:38px;padding-top:24px}details{font-size:14px}summary{cursor:pointer;color:var(--blue);font-weight:600}.help-body{color:var(--muted);max-width:850px;padding:6px 0}.support{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:26px}.support h2{font-size:18px;margin:0}.support p{max-width:650px}.support>div:last-child{flex-shrink:0}.privacy{max-width:900px}footer{border-top:1px solid var(--line);padding:24px 0;font-size:13px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.language-gate{min-height:100svh;display:grid;place-items:center;padding:40px 24px;background:radial-gradient(ellipse at 50% 24%,#f0f4f9 0,transparent 58%)}.language-panel{max-width:610px;width:100%;text-align:center}.language-panel>img{display:block;margin:0 auto 22px}.language-panel h1{font-size:clamp(28px,5vw,40px);margin:14px 0}.language-hint{color:var(--muted);font-size:14px;line-height:1.9}.language-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:32px}.language-options button{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:92px;padding:22px 24px;text-align:left;background:var(--card);border:1px solid #dce2e8;border-radius:16px;color:var(--ink);box-shadow:0 4px 15px #28384b04}.language-options strong{font-size:20px}.language-options span{font-size:11px;color:var(--muted)}.language-options button:hover{border-color:#79a2db;background:#f5f9ff}.language-options button[data-suggested=true]{border-color:#94b1d6}.language-note{margin-top:28px;font-size:12px}dialog{max-width:min(1180px,96vw);width:1180px;max-height:94svh;overflow:auto;border:1px solid #cbd8e7;border-radius:18px;padding:16px;background:var(--card);color:var(--ink)}dialog::backdrop{background:#172b42bb}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px}.dialog-toolbar h2{font-size:18px;margin:0 0 12px}.dialog-toolbar button{border:1px solid var(--line);border-radius:8px;padding:8px 14px;background:#edf2f8;color:var(--ink);flex-shrink:0}dialog>img{display:block;max-width:100%;height:auto;margin:auto;border-radius:10px}dialog>p{margin:12px 0 0}
@media(max-width:820px){.wrap{padding:0 24px}.guide-grid{gap:16px}.card{padding:24px}.guide-card>p:not(.fine){min-height:98px}}@media(max-width:680px){.wrap{padding:0 20px}.header-row{min-height:78px}.brand small{font-size:8px}.brand{font-size:14px;gap:8px}.brand img{width:34px;height:34px}.language-label>span{display:none}select{max-width:122px}main{padding-top:32px!important}.entry-grid,.guide-grid{grid-template-columns:1fr}.entry-grid{gap:16px}.section-heading{display:block;margin-top:34px}.section-heading .fine{margin-top:8px}.guide-card>p:not(.fine){min-height:0}.guide-grid{gap:28px}.guide-card h3{display:inline-block;margin-left:8px}.screenshot{max-width:100%}.overlay-shot img{margin:14px 0}.support{display:block}.support button{margin-top:5px}.card{border-radius:18px}.language-options{gap:12px}.language-options button{padding:18px;display:block;text-align:center;min-height:104px}.language-options strong,.language-options span{display:block}.language-options strong{font-size:20px}.language-options span{margin-top:5px}.language-gate{padding:28px 20px}.language-hint{font-size:12px}}