:root{font-family:"Segoe UI",Arial,sans-serif;color:#17392d;background:#f4f8f5;--accent:#087f5b;--tint:#e6f5ed;--line:#d5e7dc;color-scheme:light}*{box-sizing:border-box}body{margin:0}body.customer{--accent:#d94327;--tint:#fff0e8;--line:#f1d6c9;background:#fff8f3;color:#48291e}a{color:var(--accent)}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:4px}main{width:min(100% - 28px,620px);margin:auto;padding:18px 0 32px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.back{font-size:13px;text-decoration:none;font-weight:650}.languages{display:flex;gap:4px}.languages button{min-height:40px;padding:8px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;color:inherit}.languages [aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.card{padding:24px;border:1px solid var(--line);border-radius:24px;background:#fff;margin-bottom:14px}.brand{display:flex;align-items:center;gap:12px}.brand img{width:56px;height:56px;border-radius:16px}.brand strong{font-size:19px}.brand p{font-size:13px;margin:4px 0 0;color:#666}.hero h1{font-size:clamp(26px,6.8vw,34px);line-height:1.17;letter-spacing:-.025em;margin:22px 0 12px}.lead{font-size:15px;line-height:1.6;margin:0 0 20px}.download{display:flex;justify-content:center;align-items:center;gap:12px;min-height:58px;padding:14px;border-radius:16px;background:var(--accent);color:white;text-decoration:none;font-size:16px;font-weight:750;text-align:center}.download>b{font-size:24px}.download-note{font-size:12px;line-height:1.5;color:#666;text-align:center;margin:9px 0 0}.notice{padding:13px;border-radius:14px;background:var(--tint);font-size:13px;line-height:1.6;margin:16px 0}.notice p{margin:0}.status{border-left:3px solid var(--accent);padding:10px 12px;background:var(--tint);font-size:14px;line-height:1.5}.wechat{background:#effbf2;border-color:#b4dfbf}.wechat h2{font-size:19px;margin:0 0 9px}.wechat p{font-size:14px;line-height:1.65}.wechat button{width:100%;min-height:46px;border:0;background:#087f5b;color:#fff;border-radius:12px;padding:10px;font-weight:650}.steps{scroll-margin-top:16px}.steps h2{font-size:22px;margin:0 0 18px}.steps ol{display:grid;gap:20px;margin:0;padding:0;list-style:none}.steps li{display:grid;grid-template-columns:32px 1fr;gap:12px}.steps li>b{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--tint);color:var(--accent);font-size:15px}.steps strong{display:block;font-size:15px;line-height:1.5}.steps p{margin:5px 0 0;font-size:13px;line-height:1.6;color:#59615c}.share h2{font-size:19px;margin:0 0 8px}.share p{font-size:13px;line-height:1.5}.share-row{display:flex;gap:8px}.share input{width:100%;min-width:0;padding:11px;border:1px solid var(--line);border-radius:11px;font-size:12px;background:#fafcfb;color:#4b5952}.share button{min-height:44px;padding:10px 14px;border:1px solid var(--line);border-radius:11px;background:var(--tint);color:var(--accent);font-weight:700;flex-shrink:0}.copy-status{margin:8px 0 0;min-height:1em;color:var(--accent)}.web-link{display:block;text-align:center;padding:12px;font-size:14px}.help{padding:18px 22px}.help summary{cursor:pointer;font-size:15px;font-weight:700;min-height:26px}.help p{font-size:13px;line-height:1.65}.meta{color:#69716c;font-size:12px}.meta code{display:block;padding:10px;background:#f4f6f4;border-radius:8px;overflow-wrap:anywhere;font-size:11px}footer{text-align:center;padding:0 15px 24px;color:#717970;font-size:11px}@media(max-width:380px){main{width:calc(100% - 20px);padding-top:12px}.card{padding:18px;border-radius:20px}.download{font-size:14px}.languages button{padding:8px}.share-row{flex-direction:column}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.device-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}.device-options button{display:grid;gap:6px;min-height:76px;padding:14px;border:1px solid var(--line);border-radius:17px;background:#fff;color:inherit;text-align:left}.device-options strong{font-size:19px}.device-options small{font-size:11px;line-height:1.5}.device-options [aria-pressed=true]{border:2px solid var(--accent);background:var(--tint);padding:13px}.iphone h1{font-size:29px;line-height:1.2;margin:22px 0 12px}.coming-soon{display:inline-flex;padding:4px 9px;border-radius:7px;background:#f1eddf;color:#7a6330!important;font-weight:650}.iphone-steps{margin-top:28px}.iphone-steps h2{font-size:21px}

.back{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:9px 13px 9px 9px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 3px 10px rgba(25,55,40,.07);font-size:13px;font-weight:700;line-height:1.25;white-space:nowrap;text-decoration:none;transition:background-color .15s,border-color .15s,box-shadow .15s,transform .15s}
.back::before{content:"←";display:grid;place-items:center;flex-shrink:0;width:25px;height:25px;border-radius:9px;background:var(--tint);font-size:18px;font-weight:600;line-height:1}
@media(hover:hover){.back:hover{background:var(--tint);border-color:var(--accent);box-shadow:0 4px 12px rgba(25,55,40,.1)}}
.back:active{transform:translateY(1px);box-shadow:none}
@media(max-width:350px){.topbar{gap:8px}.back{gap:6px;padding-right:10px;font-size:12px}.back::before{width:23px;height:23px}}
@media(prefers-reduced-motion:reduce){.back{transition:none}}