:root{--ink:#173d36;--muted:#5c706a;--paper:#f6f7f1;--white:#fff;--line:#dce4da;--accent:#c9ec92;--soft:#edf2e7;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #579965;outline-offset:4px}.shell{max-width:1120px;margin:auto;padding:0 40px}header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{text-decoration:none;display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:1px}.brand-mark{display:inline-grid;place-items:center;width:32px;height:32px;background:var(--ink);color:var(--paper);border-radius:8px;font-size:22px}.brand-note{font-size:10px;letter-spacing:1.8px;border-left:1px solid #aabdb3;padding-left:12px;margin-left:5px}.header-note{font-size:13px;color:var(--muted)}.intro{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;padding:52px 0 42px}.eyebrow,.kicker{font-size:11px;font-weight:700;letter-spacing:1.5px;color:var(--muted);margin:0 0 16px}h1{font-size:clamp(42px,5.8vw,65px);line-height:1.06;letter-spacing:-2.6px;margin:0 0 20px}h1 span{color:#6d8c77}.lead{font-size:16px;line-height:1.6;color:var(--muted);max-width:470px}.features{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.features span{padding:8px 12px;border:1px solid #ccd9c8;border-radius:6px;font-size:12px}.printer-art{background:#e6eddd;border-radius:28px;text-align:center;padding:16px 22px 24px;transform:rotate(2deg)}.printer-art svg{display:block;width:100%;max-height:260px}.art-caption{font-size:11px;letter-spacing:.4px;color:#55715f}.network-note{display:flex;gap:18px;align-items:flex-start;padding:22px 24px;background:#eaf1df;border:1px solid #dbe6cb;border-radius:12px}.step-dot{flex:none;background:var(--ink);color:white;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;font-size:13px;font-weight:700}.network-note strong{font-size:16px;display:block;margin-top:4px}.network-note p{font-size:14px;color:var(--muted);margin:7px 0 0;line-height:1.5}.setup{margin-top:38px}.section-heading{display:flex;gap:16px;align-items:center;margin-bottom:20px}h2{font-size:20px;line-height:1.3;letter-spacing:-.4px;margin:0}.device-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}.device-tabs button{display:flex;align-items:center;justify-content:center;gap:9px;padding:17px 8px;border:1px solid var(--line);background:#fff;border-radius:9px;cursor:pointer;color:var(--muted);font-weight:600;font-size:14px}.device-tabs button span{font-size:22px;line-height:1}.device-tabs button[aria-selected=true]{background:var(--ink);border-color:var(--ink);color:white}.panel{background:white;border:1px solid var(--line);border-radius:16px;padding:32px}.panel[hidden]{display:none}.kicker{font-size:10px;letter-spacing:1px;margin-bottom:12px}h3{font-size:26px;line-height:1.25;letter-spacing:-.7px;margin:0 0 14px}.panel p{line-height:1.65;font-size:15px;color:var(--muted);max-width:760px;margin:10px 0 18px}.panel strong{color:var(--ink)}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:18px;max-width:100%;text-align:center;padding:14px 20px;border-radius:8px;text-decoration:none;font-size:14px;font-weight:700}.primary{background:var(--accent);color:#1a3c2d}.primary:hover{background:#b9df7e}.secondary{background:var(--soft);border:1px solid var(--line)}.small,.panel .small{font-size:12px;line-height:1.6;color:var(--muted)}details{border-top:1px solid var(--line);padding:17px 0 0;margin-top:20px}summary{cursor:pointer;font-size:14px;font-weight:600;line-height:1.5}details[open] summary{margin-bottom:14px}ol{padding-left:24px;margin:22px 0}li{padding-left:5px;margin:12px 0;line-height:1.6;font-size:15px;color:var(--muted)}.tip{background:#f3f6ef;border-left:3px solid #aac885;padding:14px 18px;border-radius:0 6px 6px 0}.copy-row{display:flex;align-items:center;gap:10px;background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:12px 14px;justify-content:space-between;max-width:100%}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;overflow-wrap:anywhere}.copy-row button{font-size:12px;color:var(--ink);border:0;background:none;cursor:pointer;padding:5px 0;flex:none}.text-link{display:inline-block;background:none;border:0;padding:0;color:var(--ink);font-size:13px;font-weight:600;cursor:pointer;text-decoration:underline;text-underline-offset:4px;line-height:1.6}.finish{display:flex;gap:16px;margin:28px 0 38px;padding:0 5px}.finish h2{font-size:19px;margin-top:2px}.finish p{font-size:14px;line-height:1.6;color:var(--muted);max-width:750px;margin:8px 0 10px}.bottom-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:20px;margin-bottom:42px}.help-card,.qr-card{padding:24px;border:1px solid var(--line);border-radius:14px;background:#f0f3e9}.help-card h2,.qr-card h2{font-size:16px}.help-card .copy-row{padding:10px;background:var(--paper)}.help-card details{margin-top:12px;padding-top:12px}.help-card details p{font-size:13px;line-height:1.6;color:var(--muted)}.qr-card{display:flex;gap:16px;align-items:center}.qr-card img{max-width:42%;height:auto;flex:none;border-radius:6px}.qr-card p{font-size:13px;line-height:1.5;color:var(--muted)}.qr-card .text-link{display:block;margin:9px 0 0;font-size:12px}footer{border-top:1px solid var(--line);padding:24px 0 32px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted)}dl{display:grid;grid-template-columns:110px 1fr;gap:10px;font-size:14px}dt{color:var(--muted)}dd{margin:0;overflow-wrap:anywhere}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 20px;border-radius:10px;font-size:14px;box-shadow:0 4px 20px #173d3633}.toast[hidden]{display:none}@media(max-width:700px){.shell{padding:0 20px}header{height:76px}.header-note{font-size:11px}.intro{padding:32px 0 28px;gap:14px;grid-template-columns:1fr}.printer-art{display:none}h1{font-size:48px;letter-spacing:-2px}.lead{font-size:15px}.network-note{padding:18px 16px;gap:12px}.network-note strong{font-size:15px}.network-note p{font-size:13px}.setup{margin-top:28px}.section-heading{gap:12px}h2{font-size:18px}.device-tabs{grid-template-columns:repeat(2,1fr);gap:8px}.device-tabs button{padding:14px 8px}.panel{padding:24px 20px}h3{font-size:23px}.panel p,li{font-size:14px}.primary,.secondary{width:100%;font-size:13px;padding:14px}.bottom-grid{grid-template-columns:1fr;gap:14px}.help-card,.qr-card{padding:20px}.finish{padding:0;gap:12px}.copy-row{align-items:flex-start;gap:8px;padding:10px}.copy-row code{font-size:11px}footer{flex-direction:column;gap:8px}.features span{font-size:11px}.qr-card{justify-content:center}.brand-note{display:none}}@media(prefers-reduced-motion:no-preference){button,a{transition:background .15s,color .15s}}
/* Bilingual setup and printable pages. */
:root{font-family:Arial,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif}.language-switch{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:9px;background:#fff}.language-switch button{border:0;background:none;padding:8px 12px;border-radius:6px;cursor:pointer;color:var(--muted);font-size:13px}.language-switch button[aria-pressed=true]{background:var(--ink);color:#fff}.hero-main{color:var(--ink)}html[lang=zh-Hans] h1{letter-spacing:-1px;line-height:1.18}html[lang=zh-Hans] h2,html[lang=zh-Hans] h3{letter-spacing:0}.detection-note{margin:-8px 0 18px}.download{font-size:16px;margin:5px 0 4px;padding:17px 24px}.quick-steps{counter-reset:steps;list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0}.quick-steps li{margin:0;padding:0;font-size:14px;line-height:1.5}.quick-steps li:before{counter-increment:steps;content:counter(steps);display:grid;place-items:center;margin-bottom:9px;width:26px;height:26px;border-radius:8px;background:var(--soft);color:var(--ink);font-size:12px;font-weight:bold}.admin-details{border:0;margin:0;padding:0}.print-controls{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin:26px 0}.print-controls button{border:0;cursor:pointer}.print-controls p{flex-basis:100%;margin:0}.poster{max-width:600px;background:#fff;border:1px solid var(--line);border-radius:18px;margin:25px auto 40px;padding:40px;text-align:center}.poster h1{font-size:44px;letter-spacing:-1px;line-height:1.2}.poster .lead{margin:15px auto}.poster img{display:block;margin:22px auto 5px;width:270px;max-width:100%;height:auto}.poster-url{display:block;text-decoration:none;font-size:26px;font-weight:bold;margin:12px 0 24px}.poster ol{text-align:left;border-top:1px solid var(--line);padding-top:16px}.test-sheet{max-width:750px;margin:35px auto;padding-bottom:50px;line-height:1.7}.test-sheet h1{font-size:40px;line-height:1.2;letter-spacing:-1px}.test-sheet h2{font-size:18px}.test-sheet hr{border:0;border-top:2px solid #173d36;margin:26px 0}.colors{display:flex;margin:24px 0}.colors span{height:70px;flex:1;-webkit-print-color-adjust:exact;print-color-adjust:exact}.toast{max-width:calc(100vw - 32px);overflow-wrap:anywhere;width:max-content}
@media(max-width:700px){.language-switch button{padding:8px 9px;font-size:12px}.brand{gap:7px;letter-spacing:.4px}.quick-steps{grid-template-columns:1fr;gap:12px;margin:24px 0}.quick-steps li{display:flex;align-items:flex-start;gap:12px}.quick-steps li:before{flex:none;margin:0}.poster{padding:25px 20px}.poster h1{font-size:34px}.poster-url{font-size:24px}.test-sheet h1{font-size:32px}.print-controls{gap:16px}.download{font-size:14px}html[lang=zh-Hans] h1{font-size:44px}}
@media(max-width:380px){.shell{padding:0 14px}.brand-note{display:none}.brand{font-size:14px}.brand-mark{width:28px;height:28px}.language-switch button{padding:8px}h1{font-size:40px}}
@media print{@page{size:A4;margin:16mm}body{background:#fff}.shell{max-width:none;padding:0}header,.print-controls,.toast{display:none!important}.poster{width:155mm;max-width:100%;margin:0 auto;padding:12mm;border-radius:0;break-inside:avoid}.poster h1{font-size:34px}.poster img{width:65mm}.poster li{font-size:12pt}.poster-url{font-size:22pt}.test-sheet{margin:0;padding:0;font-size:12pt}.test-sheet h1{font-size:28pt}}