:root{color-scheme:dark;--ink: #eaf5ff;--muted: #8ea3b7;--line: rgba(160, 206, 234, .14);--panel: rgba(13, 31, 47, .72);--panel-solid: #0d1f30;--blue: #4fd7ff;--cyan: #60efdb;--amber: #ffbd4a;--red: #ff6c68;--shadow: 0 24px 55px rgba(0, 0, 0, .3);font-family:Microsoft YaHei UI,Microsoft YaHei,Inter,system-ui,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;min-width:320px;background:#07111d;color:var(--ink)}body:before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(circle at 12% -5%,rgba(52,127,168,.28),transparent 30rem),radial-gradient(circle at 87% 22%,rgba(14,152,161,.15),transparent 27rem),#07111d}body:after{content:"";position:fixed;inset:0;z-index:-1;opacity:.18;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:4px 4px;-webkit-mask-image:linear-gradient(to bottom,black,transparent 80%);mask-image:linear-gradient(to bottom,black,transparent 80%)}button{font:inherit}.shell{width:min(100% - 32px,960px);margin:0 auto;padding:32px 0 44px}.hero{text-align:center;padding:20px 12px 35px}.brand{display:inline-flex;gap:10px;align-items:center;color:var(--ink);text-decoration:none;font-weight:700;letter-spacing:.08em;font-size:14px}.brand-mark{width:26px;height:21px;position:relative;display:flex;gap:3px;align-items:end;padding:0 1px 1px}.brand-mark:before{content:"";position:absolute;inset:0;border:2px solid var(--blue);border-radius:8px 8px 5px 5px;transform:skewY(-17deg);opacity:.9}.brand-mark i{z-index:1;height:6px;flex:1;border-radius:3px;background:linear-gradient(#70f1ff,#3197c9)}.brand-mark i:nth-child(2){height:11px}.brand-mark i:nth-child(3){height:15px}.eyebrow{margin:34px 0 14px;color:var(--cyan);font-size:12px;letter-spacing:.22em;font-weight:700}.eyebrow span{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:8px;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}h1{margin:0;font-size:clamp(34px,6vw,54px);line-height:1.17;letter-spacing:.04em;font-weight:750}h1 em{font-style:normal;color:var(--blue);text-shadow:0 0 32px rgba(79,215,255,.22)}.intro{color:var(--muted);margin:17px auto 16px;font-size:15px}.hero-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;color:#a9bfce;font-size:12px}.hero-meta b{width:3px;height:3px;align-self:center;background:#578098;border-radius:50%}.compatibility{min-height:42px;display:flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--line);background:#12344675;border-radius:12px;color:#b6ccda;font-size:13px}.status-dot{width:7px;height:7px;background:var(--amber);border-radius:50%;box-shadow:0 0 11px var(--amber)}.compatibility.ready .status-dot{background:var(--cyan);box-shadow:0 0 11px var(--cyan)}.compatibility.error .status-dot{background:var(--red);box-shadow:0 0 11px var(--red)}.flow{display:grid;grid-template-columns:1fr 50px 1fr 50px 1fr;margin:31px 7% 26px;align-items:center}.flow-step{position:relative;padding:8px 5px;color:#6e8595;text-align:center}.flow-step span{display:block;font-family:ui-monospace,monospace;font-size:10px;letter-spacing:.14em}.flow-step strong{display:block;color:#91aabd;font-size:13px;margin:5px 0 2px}.flow-step small{font-size:11px}.flow-step.active strong,.flow-step.done strong{color:var(--ink)}.flow-step.active:after,.flow-step.done:after{content:"";position:absolute;width:6px;height:6px;bottom:-5px;left:calc(50% - 3px);border-radius:50%;background:var(--cyan);box-shadow:0 0 13px var(--cyan)}.flow-line{height:1px;margin-top:-11px;background:linear-gradient(90deg,#5beddb73,#7fa6bc1f)}.panel{border:1px solid var(--line);background:linear-gradient(135deg,#143043d1,#0a1a27c7);border-radius:20px;box-shadow:var(--shadow);padding:28px;margin-top:18px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.panel-heading{display:flex;justify-content:space-between;gap:24px;padding-bottom:22px;border-bottom:1px solid var(--line)}.panel-heading>div{display:flex;align-items:baseline;gap:12px}.serial{color:var(--cyan);font-family:ui-monospace,monospace;font-size:12px;letter-spacing:.12em}.panel h2{margin:0;font-size:20px}.panel-heading p{margin:3px 0 0;font-size:12px;line-height:1.6;color:var(--muted);text-align:right;max-width:420px}.edition-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;padding-top:22px}.edition-card{position:relative;display:block;min-height:168px;padding:20px;overflow:hidden;cursor:pointer;border:1px solid rgba(151,193,216,.18);border-radius:15px;background:#04121d52;transition:.18s ease}.edition-card:hover{transform:translateY(-2px);border-color:#60efdb70}.edition-card.selected{border-color:var(--cyan);box-shadow:inset 0 0 0 1px #60efdb26,0 0 28px #27cbc114;background:linear-gradient(130deg,#1a586080,#0a1f2ca6)}.edition-card input{position:absolute;opacity:0}.edition-top{display:flex;align-items:center;justify-content:space-between;height:34px}.edition-top b{color:#09201e;background:var(--cyan);padding:3px 7px;border-radius:4px;font-size:10px}.edition-card strong{display:block;margin-top:18px;font-size:18px}.edition-card small{color:var(--muted);display:block;margin-top:7px}.card-icon{width:30px;height:24px;border:2px solid #77dfea;border-radius:5px;position:relative;box-shadow:0 0 15px #4fd7ff33}.card-icon:after{content:"";position:absolute;left:6px;top:5px;width:13px;height:2px;background:#77dfea;box-shadow:0 5px #77dfea,0 10px #77dfea}.flagship-icon{border-color:#f2bf63}.flagship-icon:after{background:#f2bf63;box-shadow:0 5px #f2bf63,0 10px #f2bf63}.selection{position:absolute;right:13px;bottom:13px;width:18px;height:18px;border:1px solid #527185;border-radius:50%}.selected .selection{border-color:var(--cyan)}.selected .selection:after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--cyan);box-shadow:0 0 9px var(--cyan)}.connect-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;padding:31px 12px 11px}.connection-visual{position:relative;min-height:190px;display:flex;align-items:center;justify-content:space-between}.screen-mock{position:relative;width:94px;height:137px;padding:10px;border-radius:13px 13px 8px 8px;background:linear-gradient(145deg,#e0eef2,#7fabb8 55%,#456d7a);box-shadow:10px 20px 30px #0000004d;transform:perspective(500px) rotateY(12deg) rotateX(-4deg)}.screen-mock div{height:85px;border-radius:5px;background:linear-gradient(145deg,#0d263b,#15445a);border:1px solid rgba(135,247,255,.45)}.screen-mock span{display:block;height:4px;margin:8px 2px 0;border-radius:3px;background:var(--cyan);opacity:.85}.screen-mock span:nth-of-type(2){width:69%;background:var(--amber)}.screen-mock span:nth-of-type(3){width:43%}.usb-cable{display:flex;align-items:center;width:80px;gap:3px}.usb-cable:before,.usb-cable:after{content:"";flex:1;height:2px;background:linear-gradient(90deg,#62d8e7,#95ecf4)}.usb-cable i{width:4px;height:4px;border-radius:50%;background:var(--cyan);box-shadow:0 0 11px var(--cyan)}.laptop{position:relative;width:112px;height:76px;border:4px solid #7396aa;border-bottom:0;border-radius:6px 6px 0 0;background:#102638}.laptop:after{content:"";position:absolute;left:-15px;bottom:-10px;width:134px;height:9px;background:#93b0be;border-radius:2px 2px 9px 9px}.laptop span{position:absolute;inset:9px;border:1px solid rgba(96,239,219,.5);background:radial-gradient(circle,rgba(96,239,219,.7) 1px,transparent 2px) 0 0/10px 10px}.connection-copy ol{margin:0 0 22px;padding:0;list-style:none;counter-reset:steps}.connection-copy li{position:relative;padding:0 0 15px 30px;color:#c4d5df;line-height:1.5;font-size:13px}.connection-copy li span{position:absolute;left:0;top:-1px;width:20px;height:20px;border:1px solid #49748a;border-radius:50%;text-align:center;line-height:18px;color:var(--cyan);font:11px ui-monospace,monospace}.connection-copy b{color:#eaf5ff;font-size:12px}.button{appearance:none;border:0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;min-height:46px;border-radius:10px;padding:0 20px;font-weight:700;transition:.18s ease}.button-primary{color:#042225;background:linear-gradient(115deg,#68f1d6,#55ccec);box-shadow:0 9px 22px #30bfba38}.button-primary:hover:not(:disabled){transform:translateY(-1px);filter:brightness(1.05)}.button-primary:disabled{cursor:not-allowed;color:#698994;background:#203b4a;box-shadow:none}.button-icon{font-size:20px;margin-right:8px}.text-button{padding:10px 13px;background:transparent;border:0;color:#91b8c5;cursor:pointer;text-decoration:underline;text-underline-offset:4px}.connection-result{margin-top:20px;padding:16px 18px;display:flex;gap:12px;align-items:center;border:1px solid rgba(96,239,219,.34);border-radius:12px;background:#1f81781c}.success-badge{display:grid;place-items:center;width:25px;height:25px;border-radius:50%;color:#053330;background:var(--cyan);font-weight:900}.connection-result strong{font-size:14px}.connection-result p{color:#9ab4c1;font-size:12px;margin:3px 0 0}.release-card{padding:20px;display:grid;grid-template-columns:145px 1fr;gap:6px 28px;border:1px solid var(--line);border-radius:14px;background:#03101b52}.release-version{border-right:1px solid var(--line)}.release-version span,.release-detail{color:var(--muted);font-size:12px}.release-version strong{display:block;margin-top:7px;color:var(--cyan);font-size:21px;font-family:ui-monospace,Consolas,monospace}.release-detail{display:flex;align-items:center;justify-content:space-between;gap:10px}.verified{color:var(--cyan);white-space:nowrap}.release-notes{grid-column:2;margin:5px 0 0;padding-left:17px;color:#bdced8;font-size:13px;line-height:1.65}.update-action{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:24px}.update-status{color:var(--muted);font-size:13px}.arrow{margin-left:12px;font-size:20px}.progress-wrap{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}.progress-label{display:flex;justify-content:space-between;color:#afc8d3;font-size:12px}.progress-label strong{color:var(--cyan);font-family:ui-monospace,monospace}.progress-track{height:7px;margin-top:9px;overflow:hidden;background:#173141;border-radius:99px}.progress-track i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--blue));box-shadow:0 0 13px var(--blue);transition:width .15s ease}.help-panel{margin-top:18px;border:1px solid var(--line);border-radius:14px;background:#0b1d2b8c;overflow:hidden}.help-toggle{width:100%;display:flex;justify-content:space-between;padding:17px 20px;cursor:pointer;color:#c9dce5;border:0;background:transparent;text-align:left;font-size:13px}.help-toggle span{transition:.2s ease}.help-toggle[aria-expanded=true] span{transform:rotate(180deg)}.help-body{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:0 20px 20px;color:#92aab8;font-size:12px;line-height:1.6}.help-body b{color:#d7e8ef}.help-body p{margin:5px 0 0}footer{padding:26px 5px 0;text-align:center;color:#83a0b1;font-size:12px}footer span{color:#587689}.toast{position:fixed;z-index:5;left:50%;bottom:28px;max-width:calc(100% - 32px);transform:translate(-50%);padding:12px 16px;border:1px solid rgba(255,108,104,.45);border-radius:10px;background:#3b2026;color:#ffe6e5;box-shadow:var(--shadow);font-size:13px}@media(max-width:680px){.shell{width:min(100% - 20px,960px);padding-top:16px}.hero{padding-bottom:25px}.eyebrow{margin-top:25px}.flow{grid-template-columns:1fr 17px 1fr 17px 1fr;margin:25px 0 19px}.flow-step strong{font-size:11px}.flow-step small{display:none}.panel{padding:20px;border-radius:16px}.panel-heading{display:block}.panel-heading p{text-align:left;margin:9px 0 0}.edition-grid,.connect-layout{grid-template-columns:1fr}.connect-layout{gap:12px;padding:22px 0 4px}.connection-visual{max-width:310px;width:100%;margin:auto;min-height:145px}.release-card{grid-template-columns:1fr;gap:12px}.release-version{border:0}.release-detail{align-items:start;flex-direction:column}.release-notes{grid-column:auto;margin-top:0}.update-action{align-items:stretch;flex-direction:column}.update-action .button{width:100%}.help-body{grid-template-columns:1fr;gap:13px}.hero-meta{line-height:1.8}.compatibility{padding:8px 12px;text-align:center}}