:root{--bg:#fafaf9;--panel:#fff;--ink:#202321;--muted:#737670;--line:#e7e8e4;--soft:#f3f4f1;--accent:#303b35;--code:#222825;--code-ink:#ecf2e9;--width:1180px;--sidebar:276px;--header:64px;--radius:9px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.78 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid #596a60;outline-offset:3px}svg{flex-shrink:0}
.topbar{height:var(--header);background:rgba(250,250,249,.97);border-bottom:1px solid var(--line);position:fixed;z-index:30;top:0;left:0;right:0;display:flex;align-items:center;gap:14px;padding:0 max(24px,calc((100vw - 1400px)/2));backdrop-filter:blur(10px)}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap}.brand-mark{display:grid;place-items:center;background:#29362f;color:#fff;width:37px;height:37px;font-weight:780;font-size:14px;letter-spacing:-.8px;border-radius:8px}.brand-name{font-size:17px;letter-spacing:-.5px;font-weight:700}.brand-muted{font-size:14px;font-weight:450;color:var(--muted)}.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:23px}.readonly-label{color:#606b62;font-size:12px;font-weight:600;white-space:nowrap}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#788a79;margin-right:6px}.top-home{text-decoration:none;color:#575e58;font-weight:600;font-size:13px}.top-home:hover{color:#171c19}.menu-button{display:none}
.app-shell{max-width:1400px;margin:var(--header) auto 0;min-height:calc(100vh - var(--header));display:flex}.sidebar{width:var(--sidebar);flex:0 0 var(--sidebar);border-right:1px solid var(--line);background:var(--bg);min-height:calc(100vh - var(--header))}.sidebar-inner{position:sticky;top:var(--header);height:calc(100vh - var(--header));padding:27px 15px 14px 22px;display:flex;flex-direction:column;overflow-y:auto}.nav-heading{font-size:11px;letter-spacing:1.2px;color:#939792;font-weight:750;padding:0 12px 15px}.search-wrap{display:flex;align-items:center;gap:10px;border:1px solid #e4e6e1;background:#fff;border-radius:7px;height:40px;padding:0 10px;color:#989d95;margin-bottom:21px}.search-wrap:focus-within{border-color:#9ba9a0}.search-wrap input{min-width:0;flex:1;outline:0;border:0;background:transparent;font-size:12px;color:var(--ink)}.search-wrap input::placeholder{color:#a5aaa5}.shortcut{font-size:18px;color:#b2b8b1}.nav-category{margin:17px 0 5px;padding-left:12px;font-size:10px;color:#949993;font-weight:700;letter-spacing:1px;text-transform:uppercase}.nav-link{display:block;padding:9px 11px;margin:2px 0;border-radius:6px;color:#5e655f;text-decoration:none;font-size:13px;line-height:1.5;border-left:2px solid transparent}.nav-link:hover{background:#f0f1ee;color:#303630}.nav-link.active{background:#e9eee8;border-left-color:#465e4d;color:#253b2d;font-weight:700}.nav-empty{font-size:12px;color:#8b8f89;padding:12px}.sidebar-bottom{margin-top:auto;padding:20px 11px 4px;font-size:11px;color:#9a9e97;border-top:1px solid var(--line);line-height:1.75}.small-sq{display:inline-block;width:5px;height:5px;background:#9fa99d;vertical-align:middle;margin-right:7px}
.main-area{flex:1;min-width:0}.main-inner{max-width:930px;padding:47px clamp(24px,6vw,90px) 80px;margin:auto;min-height:calc(100vh - 165px)}.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:#969b96;margin-bottom:25px}.crumb a{text-decoration:none}.crumb a:hover{text-decoration:underline}.crumb svg{width:12px;height:12px}.eyebrow{font-size:12px;letter-spacing:1.9px;font-weight:750;color:#66796b;text-transform:uppercase;margin-bottom:11px}.page-title{font-size:clamp(27px,4.2vw,40px);font-weight:780;line-height:1.35;letter-spacing:-1.3px;margin:0 0 13px}.page-lead{font-size:15px;color:#707771;line-height:1.95;margin:0 0 23px}.meta-row{display:flex;align-items:center;gap:12px;color:#979d96;font-size:11px;margin:10px 0 26px}.tag{padding:4px 9px;background:#edf0eb;color:#56685a;border-radius:4px;font-size:11px}.hero{padding:0 0 29px;border-bottom:1px solid var(--line);margin-bottom:32px}.home-hero{margin-bottom:29px}.hero-intro{background:#f0f2ed;border:1px solid #e4e8e1;border-radius:10px;padding:23px 25px;margin-top:27px;display:flex;gap:20px;align-items:center}.hero-intro p{margin:2px 0 0;color:#6d756e;font-size:12px}.hero-intro b{font-size:14px}.hero-intro .icon{font-size:29px;color:#66776b}.home-section-heading{display:flex;align-items:end;justify-content:space-between;margin:33px 0 14px}.home-section-heading h2{margin:0;font-size:18px}.home-section-heading span{font-size:11px;color:#aaa}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.guide-card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:21px;text-decoration:none;transition:border-color .15s,transform .15s}.guide-card:hover{border-color:#a6b2a5;transform:translateY(-2px)}.guide-card .card-kicker{font-size:11px;color:#88958a;font-weight:650}.guide-card h3{font-size:15px;margin:10px 0 7px;line-height:1.6}.guide-card p{font-size:12px;color:#858a83;margin:0;line-height:1.7}.guide-card .card-arrow{margin-top:16px;color:#6b7c6d;font-size:14px}.steps-pills{display:flex;gap:8px;flex-wrap:wrap}.step-pill{background:#fff;border:1px solid #e6e9e3;padding:6px 12px;font-size:11px;color:#667266;border-radius:99px}
.article{user-select:none;-webkit-user-select:none}.article h2{font-size:21px;line-height:1.5;letter-spacing:-.5px;margin:37px 0 15px;padding-top:4px}.article h3{font-size:16px;margin:24px 0 9px}.article p{margin:12px 0;color:#48504a;line-height:2}.article ul,.article ol{margin:14px 0;padding-left:24px;color:#4c544d}.article li{padding:4px 0}.article strong{color:#272d28}.article .callout{padding:15px 17px;border-left:3px solid #a4afa2;background:#f0f2ee;border-radius:0 7px 7px 0;color:#536054;margin:20px 0;font-size:13px;line-height:1.85}.article .callout.warn{border-color:#b9a67a;background:#f8f5ed;color:#74654a}.callout-title{font-weight:750;color:#38433a;margin-bottom:4px}.article .code-block{margin:18px 0 23px;border-radius:8px;background:var(--code);overflow:hidden;border:1px solid #1f2a24;user-select:text;-webkit-user-select:text}.code-toolbar{padding:10px 13px 8px 16px;display:flex;align-items:center;justify-content:space-between;gap:10px;color:#b4c4b8;border-bottom:1px solid rgba(255,255,255,.10)}.code-lang{font-size:11px;font-weight:600;letter-spacing:.2px}.copy-button{border:1px solid #637367;background:#34433a;color:#e8efe8;line-height:1.3;border-radius:5px;padding:6px 10px;display:inline-flex;gap:6px;align-items:center;font-size:11px;font-weight:650}.copy-button:hover{background:#435549}.copy-button:active{transform:scale(.98)}.copy-button svg{width:13px;height:13px}.article pre{padding:18px;overflow:auto;white-space:pre;tab-size:2;margin:0;color:var(--code-ink);font:13px/1.8 Consolas,"SFMono-Regular",Monaco,monospace;-webkit-user-select:text;user-select:text}.article code{font-family:Consolas,"SFMono-Regular",Monaco,monospace}.article p code,.article li code{font-size:12px;border-radius:3px;background:#e9ede7;padding:3px 5px;color:#37493d;-webkit-user-select:none;user-select:none}.article .screenshot{border:1px dashed #bfc6bd;background:linear-gradient(135deg,#f4f5f1,#ebeee9);border-radius:9px;min-height:170px;display:grid;place-items:center;text-align:center;padding:22px;margin:17px 0}.screenshot .shot-icon{font-size:30px;color:#9da89b}.screenshot .shot-label{font-size:13px;color:#616c62;font-weight:650;margin:5px}.screenshot .shot-info{font-size:11px;color:#99a199}.article .real-screenshot{margin:18px 0}.article .real-screenshot img{max-width:100%;display:block;border-radius:8px;border:1px solid #e0e3de}.article .real-screenshot figcaption{font-size:11px;color:#999;margin-top:7px}.article .plain-link{color:#476b54;text-decoration:underline;text-underline-offset:4px}.article .separator{height:1px;background:var(--line);margin:25px 0}.article-end{border-top:1px solid var(--line);margin-top:55px;padding-top:25px}.article-end small{display:block;color:#989e98;font-size:12px;margin-bottom:13px}.next-link{display:flex;align-items:center;justify-content:space-between;gap:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:13px 17px;text-decoration:none;font-size:13px;font-weight:700}.next-link:hover{border-color:#97a796}.site-footer{max-width:930px;padding:25px clamp(24px,6vw,90px) 35px;margin:auto;border-top:1px solid var(--line);color:#a3a7a1;font-size:11px;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#1f2822;color:#fff;padding:10px 18px;border-radius:6px;font-size:13px;box-shadow:0 9px 24px #0002;z-index:100}.icon-button{border:0;background:transparent;display:inline-grid;place-items:center;padding:7px;color:#4b574d}.sidebar-overlay{display:none}.no-results{color:#89908a;font-size:13px;padding:20px;background:#f4f5f2;border-radius:7px}
@media(max-width:920px){:root{--sidebar:246px}.sidebar-inner{padding-left:10px}.main-inner{padding:39px 32px 70px}.site-footer{padding-left:32px;padding-right:32px}}
@media(max-width:760px){:root{--header:59px}.topbar{padding:0 14px;gap:8px}.menu-button{display:inline-grid}.brand-mark{width:32px;height:32px;font-size:12px}.brand-name{font-size:15px}.brand-muted{font-size:12px}.top-home{display:none}.readonly-label{font-size:11px}.sidebar{position:fixed;z-index:50;top:var(--header);bottom:0;left:0;min-height:0;width:min(86vw,320px);transform:translateX(-105%);transition:transform .22s ease;box-shadow:10px 0 40px #0000}.sidebar.open{transform:translateX(0);box-shadow:10px 0 40px #0002}.sidebar-inner{height:calc(100vh - var(--header));padding:22px 16px 14px}.sidebar-overlay:not([hidden]){display:block;position:fixed;z-index:40;inset:var(--header) 0 0;background:#151c1780}.main-inner{padding:30px 22px 60px}.page-title{letter-spacing:-.8px}.cards{grid-template-columns:1fr}.hero-intro{padding:17px;gap:12px}.site-footer{padding:22px}.article pre{font-size:12px;padding:15px}.article h2{font-size:19px;margin-top:29px}.guide-card{padding:18px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{.sidebar,.topbar,.site-footer,.copy-button{display:none!important}.app-shell{display:block;margin:0}.main-inner{max-width:100%;padding:20px}}