:root{color-scheme:only dark;--bg:#151e2b;--panel:#1b2839;--line:#35455a;--muted:#acb9cb;--text:#edf2f8;--gold:#a9c5e3;--serif:Georgia,'Times New Roman',serif;font-family:Arial,'Noto Sans',sans-serif;background:var(--bg);color:var(--text);scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;background:var(--bg)}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,select,input{touch-action:manipulation}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--gold);outline-offset:5px}button{cursor:pointer}a:hover{color:var(--gold)}[hidden]{display:none!important}.wrap{width:min(1200px,calc(100% - 96px));margin:auto}.header{height:106px;display:flex;align-items:center;gap:48px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:25px;white-space:nowrap}.brand small{display:block;font:9px Arial,sans-serif;letter-spacing:3px;color:var(--gold);margin-top:5px}.header nav{margin-left:auto;display:flex;gap:32px;font-size:13px}.language{display:flex;align-items:center;gap:8px;color:var(--gold)}select{border:0;background:transparent;color:var(--text);font-size:12px;max-width:140px;padding:10px 5px}option{background:var(--bg)}.hero{min-height:645px;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:30px;padding-top:30px;padding-bottom:55px}.eyebrow{font-size:10px;line-height:1.8;letter-spacing:2.5px;color:var(--gold);font-weight:600;display:flex;align-items:center;gap:10px}.dot{display:inline-block;width:5px;height:5px;background:var(--gold);border-radius:100%;flex-shrink:0}.hero h1{font-family:var(--serif);font-size:clamp(58px,5.8vw,83px);font-weight:400;line-height:1.07;letter-spacing:-2px;margin:24px 0}.hero h1 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#a9c5e31c;outline-offset:12px}.orbit-two{width:284px;border-style:dashed;border-color:#a9c5e340;transform:rotate(15deg)}.orbit-three{width:225px;border:1px solid #a9c5e360;outline:1px solid #a9c5e318;outline-offset:7px}.axis{position:absolute;width:390px;height:1px;background:linear-gradient(90deg,transparent,#a9c5e355,transparent)}.axis-one{transform:rotate(45deg)}.axis-two{transform:rotate(-45deg)}.artifact-core{height:170px;width:170px;display:grid;place-items:center;filter:drop-shadow(0 0 40px #a9c5e333)}.rune{position:absolute;background:var(--bg);padding:10px;color:var(--gold);font-family:var(--serif);font-size:20px}.r1{top:42px;left:46%}.r2{top:148px;right:21px}.r3{bottom:89px;right:80px}.r4{bottom:89px;left:73px}.r5{top:148px;left:21px;font-size:27px}.artifact-caption{position:absolute;bottom:4px;letter-spacing:4px;font-size:9px;color:#92a4bb}.versions{border-top:1px solid var(--line);padding-top:40px;padding-bottom:78px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.section-heading h2{font-family:var(--serif);font-size:24px;font-weight:400}.era-list{display:grid;grid-template-columns:repeat(5,1fr);margin-top:32px}.era-list article{border-left:1px solid var(--line);padding:0 21px}.era-list article:first-child{padding-left:0;border-left:0}.era-no{font-size:9px;color:#8194ac}.era-list h3{font-family:var(--serif);font-size:36px;margin:16px 0 10px;font-weight:400}.era-list p{font-size:11px;color:var(--muted);line-height:1.6}.era-list .forever-era h3{font-size:29px;color:var(--gold)}.forever-era h3 span{font-size:22px}.developer-section{display:grid;grid-template-columns:1fr 1fr;gap:80px;border-top:1px solid var(--line);padding-top:80px;padding-bottom:80px}h2{font-family:var(--serif);font-size:38px;line-height:1.2;font-weight:400;margin:18px 0 24px}.developer-copy>p:not(.eyebrow),.final-cta 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h2,.doc-article h3{color:var(--text);scroll-margin-top:25px}.doc-article h1{font-family:var(--serif);font-size:43px;font-weight:400;margin-top:0}.doc-article h2{font-size:30px;border-top:1px solid var(--line);padding-top:30px;margin-top:45px}.doc-article h3{font-size:21px}.doc-article pre{background:#0e1723;border:1px solid var(--line);padding:20px;overflow:auto;font-size:12px}.doc-article code{color:#bdd3ea}.doc-article a{color:var(--gold);text-decoration:underline;text-underline-offset:3px}.doc-article table{display:block;overflow:auto;border-collapse:collapse;max-width:100%}.doc-article td,.doc-article th{padding:9px 15px;border:1px solid var(--line);text-align:left}.doc-article hr{border:0;border-top:1px solid var(--line);margin:35px 0}.doc-note{border:1px solid var(--line);padding:15px;margin-bottom:30px;font-size:12px;color:var(--muted)}
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@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}}

/* Three levels: guide/API group, category, specific entry. */
.doc-sidebar{overflow:visible;max-height:none}.doc-guide-link{color:var(--gold)!important}#api-links{max-height:max(180px,calc(90vh - 260px));overflow:auto;padding-right:8px}.doc-nav-group{margin:12px 0;border-top:1px solid var(--line);padding-top:10px}.doc-nav-group>summary{font-size:13px;font-weight:700;color:var(--gold);cursor:pointer;padding:7px 0}.doc-nav-category{margin:2px 0 3px 12px}.doc-nav-category>summary{font-size:12px;font-weight:600;color:var(--text);cursor:pointer;padding:7px 0;line-height:1.6}.doc-nav-category ul{list-style:none;margin:0 0 6px 7px;padding:0 0 0 12px;border-left:1px solid var(--line)}.doc-nav-category li{margin:0;padding:0}.doc-nav-category a{font-size:11px;padding:6px 5px;overflow-wrap:anywhere}.doc-nav-category a[aria-current="location"]{color:var(--gold);background:#a9c5e314;border-radius:3px}.doc-nav-group summary:focus-visible,.doc-nav-category summary:focus-visible{outline:2px solid var(--gold);outline-offset:3px}@media(max-width:760px){.doc-sidebar{max-height:none}#api-links{max-height:300px}}

/* Forever homepage: generous editorial layout, compatibility kept in the menu. */
:root{--bg:#111925;--panel:#1a2636;--line:#34465b;--muted:#a8b7c8;--text:#edf2f7;--gold:#a9c5e3}
.wrap{width:min(1320px,calc(100% - 104px))}.header{height:105px;gap:35px}.header nav{align-items:center;gap:32px}.header .brand{font-size:27px}.language select{font-size:13px}.supported-versions{position:relative}.supported-versions>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px;white-space:nowrap}.supported-versions>summary::-webkit-details-marker{display:none}.supported-versions>summary:after{content:'⌄';font-size:15px;color:var(--gold)}.supported-versions[open]>summary{color:var(--gold)}.versions-menu{position:absolute;z-index:20;top:calc(100% + 22px);right:0;width:325px;padding:18px 24px;background:#1a2636;border:1px solid #4c637e;box-shadow:0 22px 60px #0007}.versions-menu>p{font-size:10px;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted);margin:0 0 10px}.versions-menu>div,.versions-menu>a{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:14px 0;border-top:1px solid var(--line);font-size:12px}.versions-menu strong{font-size:15px;font-weight:500}.versions-menu span{color:var(--muted);text-align:right;font-size:11px;line-height:1.6}.versions-menu>a strong{color:var(--gold)}.supported-versions summary:focus-visible{outline:2px solid var(--gold);outline-offset:6px}
.home-hero{padding-top:29px;position:relative}.hero-topline{display:flex;align-items:center;justify-content:space-between;gap:20px}.hero-topline .eyebrow{font-size:10px;letter-spacing:2.2px}.hero-edition{font-size:9px;letter-spacing:3px;color:#91a5be}.hero-focus{position:relative;isolation:isolate;text-align:center;padding:75px 0 83px;overflow:hidden}.hero-brand{font-family:var(--serif);font-size:37px;color:#cbd8e8;letter-spacing:3px;margin:0 0 -9px}.hero-focus h1{font-family:var(--serif);font-weight:400;font-size:clamp(100px,12.8vw,184px);line-height:1.12;letter-spacing:-6px;color:var(--gold);margin:0}.hero-focus .lead{font-size:17px;line-height:1.9;max-width:600px;margin:24px auto 0;color:#b9c8da}.hero-focus .actions{justify-content:center;gap:17px;margin-top:33px}.hero-focus .button{min-height:55px;min-width:170px;padding:16px 25px;font-size:14px;gap:25px}.secondary{background:transparent;color:var(--text);border-color:#5b7594}.secondary:hover{background:#a9c5e30c;border-color:var(--gold)}.hero-focus .hero-note{margin-top:20px;font-size:11px;color:#95aac3;letter-spacing:.2px}.infinity-halo{position:absolute;z-index:-1;inset:-30px 0 0;display:grid;place-items:center;font:500 650px/1 Georgia,serif;color:#a9c5e309;pointer-events:none;transform:rotate(-13deg)}.hero-focus:after{content:none}.hero-resources{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px}.hero-resources p{display:flex;align-items:center;gap:20px;color:var(--muted);margin:0}.resource-index{font:14px var(--serif);color:var(--gold)}.hero-resources a{color:#d6e1ed;white-space:nowrap}.hero-resources a:hover{color:var(--gold)}
.home-develop{padding-top:120px;padding-bottom:115px;display:grid;grid-template-columns:1fr 1.05fr;gap:100px;align-items:center}.home-develop h2{font-size:48px;line-height:1.18;max-width:470px;margin:21px 0 27px}.home-develop .developer-copy>p:not(.eyebrow){font-size:15px;line-height:1.9;max-width:470px}.developer-links{display:flex;flex-wrap:wrap;gap:25px;margin:26px 0}.home-develop .version-note{margin:32px 0 0;color:#9aadc5!important}.home-develop .code-panel{border-color:#3b516c;border-radius:1px;box-shadow:none;background:#162233}.home-develop .code-panel pre{font-size:13px;line-height:2.15;padding:38px 31px}.home-develop .code-bar{padding:20px 25px}.home-develop .code-footer{padding:18px 25px}
.home-start{padding-top:65px;padding-bottom:110px;border-top:1px solid var(--line)}.home-start .section-heading{align-items:flex-end;gap:40px}.home-start .section-heading h2{font-size:43px;max-width:650px;margin-bottom:0}.home-start .section-heading>p{font-size:12px;color:var(--muted);line-height:1.8;max-width:240px;margin:0 0 3px}.start-path{list-style:none;padding:0;margin:55px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:0}.start-path li{border-top:1px solid #5e7a9b;padding:26px 40px 0 0;position:relative}.start-path li+li{padding-left:40px;border-left:1px solid var(--line)}.step-number{font:45px/1.2 var(--serif);color:#7e9ab9}.start-path h3{font-size:19px;font-weight:500;margin:26px 0 17px;line-height:1.5}.start-path p{color:var(--muted);font-size:13px;line-height:1.9;min-height:74px;margin:0 0 22px}.start-path .text-link{font-size:12px}.home-closing{background:#1d2b3d;border:1px solid #405774;position:relative;isolation:isolate;overflow:hidden;padding:48px 55px;display:flex;align-items:center;justify-content:space-between;gap:35px;margin-bottom:90px}.home-closing h2{font-size:40px;max-width:700px;margin:15px 0}.home-closing p:not(.eyebrow){font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:0}.home-closing .button{flex-shrink:0;padding:17px 28px;z-index:1}.closing-mark{position:absolute;right:110px;top:-75px;font:400px/1 Georgia,serif;color:#a9c5e309;z-index:-1;pointer-events:none}html[lang^=zh] .hero-focus h1{font-family:'Microsoft YaHei','Noto Sans',sans-serif;font-size:clamp(72px,9vw,130px);font-weight:600;letter-spacing:5px;margin-top:22px}html[lang^=zh] .hero-brand{font-size:33px}html[lang^=zh] .home-develop h2,html[lang^=zh] .home-start h2,html[lang^=zh] .home-closing h2{line-height:1.45;font-size:38px}
@media(max-width:1050px){.wrap{width:calc(100% - 64px)}.home-develop{gap:50px;padding-top:85px;padding-bottom:85px}.home-develop h2{font-size:40px}.hero-resources{flex-wrap:wrap;justify-content:flex-start;column-gap:35px}.hero-resources p{width:100%;margin-bottom:2px}.start-path li{padding-right:23px}.start-path li+li{padding-left:23px}.home-start .section-heading h2{font-size:38px}.header nav{gap:20px}.hero-focus{padding-top:70px;padding-bottom:65px}.home-closing{padding:40px}.home-closing h2{font-size:35px}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.header{height:auto;gap:12px;padding-top:21px;padding-bottom:20px}.header nav{margin-top:12px;gap:30px}.header .brand{font-size:23px}.versions-menu{left:0;right:auto;width:min(310px,calc(100vw - 40px));top:calc(100% + 15px)}.hero-topline{padding-top:7px}.hero-edition{font-size:8px;letter-spacing:1.5px}.hero-topline .eyebrow{font-size:8px;letter-spacing:1.3px}.home-hero{padding-top:18px}.hero-focus{padding-top:53px;padding-bottom:49px}.hero-brand{font-size:25px;margin-bottom:6px}.hero-focus h1{font-size:clamp(73px,18.6vw,115px);letter-spacing:-3px}.hero-focus .lead{font-size:14px;line-height:1.9;margin-top:23px;max-width:450px}.hero-focus .actions{gap:11px;margin-top:28px;flex-wrap:wrap}.hero-focus .button{min-width:140px;min-height:50px;padding:14px 17px;font-size:13px}.hero-focus .hero-note{font-size:10px;line-height:1.9;max-width:350px;margin:18px auto 0}.infinity-halo{font-size:400px;inset:-25px -100px 0}.hero-resources{font-size:11px;gap:18px 25px;padding:22px 0}.hero-resources p{font-size:11px;gap:13px}.home-develop{grid-template-columns:1fr;gap:33px;padding-top:65px;padding-bottom:65px}.home-develop h2{font-size:35px;margin-top:18px}.home-develop .developer-copy>p:not(.eyebrow){font-size:14px}.home-develop .code-panel pre{font-size:11px;padding:25px 21px}.home-develop .code-bar{padding:17px 20px}.home-start{padding-top:45px;padding-bottom:65px}.home-start .section-heading{display:block}.home-start .section-heading h2{font-size:34px}.home-start .section-heading>p{margin-top:18px}.start-path{grid-template-columns:1fr;margin-top:32px;gap:28px}.start-path li,.start-path li+li{padding:24px 0 0;border-left:0;display:grid;grid-template-columns:52px 1fr;column-gap:14px}.step-number{font-size:35px;grid-row:1/4}.start-path h3{font-size:17px;margin:0 0 10px}.start-path p{font-size:13px;min-height:0;margin:0 0 16px}.start-path .text-link{grid-column:2}.home-closing{display:block;padding:28px;margin-bottom:55px}.home-closing h2{font-size:30px;line-height:1.3}.home-closing .button{margin-top:23px}.home-closing .eyebrow{font-size:8px}.home-closing p:not(.eyebrow){font-size:13px}.closing-mark{font-size:300px;top:0;right:-40px}html[lang^=zh] .hero-focus h1{font-size:clamp(55px,13vw,80px);letter-spacing:2px;margin-top:15px}html[lang^=zh] .hero-brand{font-size:25px}html[lang^=zh] .home-develop h2,html[lang^=zh] .home-start h2{font-size:30px}html[lang^=zh] .home-closing h2{font-size:27px}.doc-layout{padding-top:30px}}
#doc-language-status{font-size:11px;line-height:1.7;color:var(--gold);padding:9px 0;margin:0}.doc-article[aria-busy=true]{opacity:.6}.doc-sidebar [data-doc-ui]{line-height:1.65}.doc-article code{word-break:normal}.doc-article pre code{white-space:pre}.doc-layout:lang(zh-CN) .doc-article h1,.doc-layout:lang(ko) .doc-article h1{font-family:'Microsoft YaHei','Noto Sans',sans-serif;font-weight:500;font-size:36px;line-height:1.4}.doc-layout:lang(zh-CN) .doc-article h2,.doc-layout:lang(ko) .doc-article h2{font-family:'Microsoft YaHei','Noto Sans',sans-serif;font-size:28px;line-height:1.5}
@media(max-width:760px){.header nav{position:relative}.supported-versions{position:static}.versions-menu{left:0;right:auto}.home-develop>*{min-width:0}}

/* Deployment options. */
.environment-section{border-top:1px solid var(--line);padding-top:65px;padding-bottom:100px}.environment-section .section-heading{align-items:flex-end;gap:40px}.environment-section h2{font-size:43px;max-width:680px;margin-bottom:0}.environment-section .section-heading>p{max-width:300px;font-size:14px;line-height:1.85;color:var(--muted);margin:0 0 3px}.environment-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:24px;margin-top:40px}.environment-card{min-width:0;padding:32px;border:1px solid var(--line);background:var(--panel)}.environment-pve{border-color:#5b7594;background:#1b2b3e}.environment-card-top{display:flex;align-items:center;justify-content:space-between;gap:20px}.environment-number{font:27px/1.3 var(--serif);color:#8fa8c4}.environment-badge{font-size:10px;line-height:1.7;letter-spacing:.6px;color:var(--gold);text-align:right}.environment-card h3{font-size:24px;font-weight:500;line-height:1.5;margin:20px 0 13px}.environment-card p,.environment-card li{font-size:14px;line-height:1.9;color:var(--muted)}.environment-card p{margin:0}.environment-card ul{padding-left:19px;margin:18px 0 25px}.environment-card li+li{margin-top:6px}.environment-card .button{gap:24px;max-width:100%;text-align:center;white-space:normal}html[lang^=zh] .environment-section h2{font-size:38px;line-height:1.45}
@media(max-width:760px){.environment-section{padding-top:45px;padding-bottom:65px}.environment-section .section-heading{display:block}.environment-section h2,html[lang^=zh] .environment-section h2{font-size:30px}.environment-section .section-heading>p{margin-top:18px;max-width:none}.environment-grid{grid-template-columns:1fr;margin-top:28px;gap:18px}.environment-card{padding:25px}.environment-card h3{font-size:22px}.environment-card p,.environment-card li{font-size:13px}.environment-card-top{gap:14px}.environment-badge{font-size:9px;max-width:200px}}

.environment-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.environment-links .button{font-size:12px;gap:12px;padding:12px 17px}@media(max-width:760px){.environment-links{align-items:stretch;flex-direction:column}.environment-links .button{width:100%}}