:root{--primary:#2b5ce6;--primary-hover:#1e46bf;--ink:#0f1526;--text:#1b2233;--text-2:#59637a;--caption:#6b7590;--page:#f4f5f8;--border:#e4e7ee;--border-light:#eef0f4;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Segoe UI",sans-serif;color:var(--text);background:var(--page);font-size:14px;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;flex-direction:column}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #9bb7ff;outline-offset:3px;border-radius:6px}svg{flex-shrink:0}h1,h2,p{margin:0}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}[hidden]{display:none!important}
.shell{width:min(680px,calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-light)}.nav{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;width:min(1160px,calc(100% - 48px));margin-inline:auto}.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em}.brand img{border-radius:9px}.nav{justify-content:flex-start;gap:28px}.nav-menu{display:flex;align-items:center;gap:26px;flex:1;font-size:14.5px;font-weight:500;color:var(--text-2)}.nav-menu>a:hover{color:var(--primary)}.nav-menu>a.is-current{color:var(--primary);font-weight:700}.nav-gap{flex:1}.nav-toggle{display:none;margin-left:auto;width:40px;height:40px;border:0;background:none;flex-direction:column;justify-content:center;gap:5px;align-items:center}.nav-toggle span{width:20px;height:2px;background:var(--text);border-radius:2px}.console-link{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 18px;border-radius:10px;background:var(--primary);color:#fff;font-size:14px;font-weight:700}.console-link:hover{background:var(--primary-hover);color:#fff}
main.shell{flex:1;display:flex;flex-direction:column;justify-content:center;padding:40px 0 32px}
.hero{text-align:center;display:flex;flex-direction:column;align-items:center;padding-bottom:32px}.hero h1{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1.25}.lead{margin-top:12px;font-size:15px;line-height:1.7;color:var(--text-2);max-width:520px}.hero-win,.hero-mac{display:flex;flex-direction:column;align-items:center}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:10px;font-weight:700;transition:background .15s,border-color .15s,color .15s;white-space:nowrap}.button svg{width:20px;height:20px}.primary{margin-top:26px;height:52px;padding:0 30px;font-size:16px;background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(43,92,230,.25)}.primary:hover{background:var(--primary-hover)}.secondary{height:40px;padding:0 16px;font-size:13.5px;border:1px solid #d9dee8;background:#fff;color:var(--text)}.secondary:hover{border-color:var(--primary);color:var(--primary)}
.spec{margin-top:14px;font-size:13px;color:var(--caption);font-variant-numeric:tabular-nums}.spec .version{font-weight:600;color:var(--text-2)}.hero-links{margin-top:8px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:13px;color:#b7bfce}.hero-links a,.text-button{color:var(--text-2);font-weight:600;border:0;background:none;padding:4px 0;font-size:13px}.hero-links a:hover,.text-button:hover{color:var(--primary)}
.row{background:#fff;border:1px solid var(--border);border-radius:14px;margin-top:12px;scroll-margin-top:24px}.row.card{padding:18px 22px}
details.row>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 22px;font-size:13.5px}details.row>summary::-webkit-details-marker{display:none}.summary-title{color:var(--caption);white-space:nowrap}.summary-title b{color:var(--text);font-weight:700}.summary-title b:not(:first-child){margin-left:6px}.summary-title .mac-version{font-size:12.5px;font-weight:500;color:var(--caption)}.summary-hint{flex:1;min-width:0;font-size:12.5px;color:var(--caption);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chevron{font-size:16px;color:#b7bfce;line-height:1;margin-left:auto}details[open]>summary .chevron{transform:rotate(45deg)}.row-body{padding:2px 22px 18px;border-top:1px solid var(--border-light)}.row-body>.secondary{margin:14px 0 4px}
.row h2{font-size:15px;font-weight:700;display:flex;align-items:baseline;gap:8px}.row h2 span{font-size:12.5px;font-weight:500;color:var(--caption);font-variant-numeric:tabular-nums}
.row-body>p:first-child{margin-top:14px}.row-body>p{font-size:13px;line-height:1.8;color:var(--text-2);margin:4px 0 10px}.steps{margin:10px 0 12px;padding-left:20px;display:grid;gap:6px;font-size:13px;line-height:1.75;color:var(--text-2)}.steps a{color:var(--primary);font-weight:600}code:not(.hash){font-size:12px;background:#f4f5f8;padding:1px 5px;border-radius:4px;overflow-wrap:anywhere}
.checksum-label{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--caption);margin-bottom:6px}.checksum-label span{overflow-wrap:anywhere}.checksum-label .text-button{font-size:12px;margin-left:14px}.checksum-label .text-button:first-child{margin-left:0}.hash{display:block;overflow-wrap:anywhere;background:#f8f9fc;border:1px solid var(--border);padding:9px 12px;border-radius:8px;color:var(--text-2);font-size:12px;line-height:1.6;margin-bottom:6px}
.copy-status{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);max-width:calc(100% - 32px);background:var(--ink);color:#fff;padding:11px 18px;border-radius:9px;box-shadow:0 8px 24px rgba(15,21,38,.25);font-size:13px;text-align:center;z-index:10}.copy-status:empty{display:none}
.footer{display:flex;align-items:center;justify-content:space-between;padding:20px 0 26px;gap:16px;color:var(--caption);font-size:12px;width:min(1120px,calc(100% - 48px));margin-inline:auto}.footer>div{display:flex;gap:18px}.footer a:hover{color:var(--primary)}
@media(max-width:700px){.nav-toggle{display:flex}.nav-menu{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--border);padding:8px 16px 16px}.nav-menu.is-open{display:flex}.nav-menu>a{padding:12px 4px;border-bottom:1px solid var(--border-light)}.nav-gap{display:none}.nav-menu>.console-link{margin-top:12px;justify-content:center;border-bottom:0}}
@media(max-width:650px){.shell,.nav,.footer{width:calc(100% - 32px)}.brand{font-size:16px}main.shell{justify-content:flex-start;padding-top:32px}.hero h1{font-size:28px}.lead{font-size:14px}.primary{width:100%}.hero-links{flex-wrap:wrap}details.row>summary{flex-wrap:wrap;padding:14px 18px}.summary-hint{flex-basis:100%;white-space:normal}.chevron{position:absolute;right:18px}details.row{position:relative}.row.card,.row-body{padding-inline:18px}.secondary{width:100%}.footer{flex-direction:column;align-items:flex-start;gap:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}