.header{position:sticky;top:0;z-index:100;background:#fafafae0;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.07);transition:background .3s}@media(prefers-color-scheme:dark){.header{background:#0c0c0ce0;border-bottom-color:#ffffff12}}.header-inner{max-width:820px;margin:0 auto;padding:0 24px;height:58px;display:flex;align-items:center;justify-content:space-between}.header-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}.header-avatar{width:30px;height:30px;border-radius:50%;object-fit:cover;border:1.5px solid rgba(0,0,0,.08);transition:transform .6s cubic-bezier(.34,1.56,.64,1)}.header-avatar:hover{transform:rotate(360deg)}@media(prefers-color-scheme:dark){.header-avatar{border-color:#ffffff1f}}.header-name{font-size:15px;font-weight:600;letter-spacing:.01em;color:#111}@media(prefers-color-scheme:dark){.header-name{color:#eee}}.header-nav{display:flex;align-items:center;gap:2px}.header-nav a{padding:5px 12px;border-radius:8px;font-size:14px;font-weight:500;color:#444;text-decoration:none;transition:background .15s,color .15s}.header-nav a:hover{background:#0000000f;color:#111}.header-lang{margin-left:4px;padding:5px 10px;border-radius:8px;font:inherit;font-size:13px;font-weight:500;color:#444;background:transparent;border:1px solid rgba(0,0,0,.12);cursor:pointer;transition:background .15s,color .15s,border-color .15s;display:inline-flex;align-items:center;gap:6px;line-height:1}.header-lang:hover{background:#0000000f;color:#111;border-color:#00000038}.header-lang-wrap{position:relative;margin-left:4px;display:inline-block}.header-lang-wrap .header-lang{margin-left:0}.header-lang-caret{opacity:.7;transition:transform .15s}.header-lang[aria-expanded=true] .header-lang-caret{transform:rotate(180deg)}.header-lang-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:140px;margin:0;padding:4px;list-style:none;background:#fffffffa;border:1px solid rgba(0,0,0,.08);border-radius:10px;box-shadow:0 8px 24px #0000001f;z-index:200}.header-lang-item{display:flex;align-items:center;justify-content:space-between;width:100%;padding:7px 10px;border:none;background:transparent;border-radius:6px;font:inherit;font-size:13px;color:#333;text-align:left;cursor:pointer;transition:background .12s,color .12s}.header-lang-item:hover{background:#0000000f;color:#111}.header-lang-item.is-active{color:#111;font-weight:600}.header-lang-item.is-active:after{content:"✓";margin-left:10px;font-size:12px;opacity:.7}@media(prefers-color-scheme:dark){.header-nav a{color:#999}.header-nav a:hover{background:#ffffff14;color:#eee}.header-lang{color:#999;border-color:#ffffff29}.header-lang:hover{background:#ffffff14;color:#eee;border-color:#ffffff47}.header-lang-menu{background:#181818fa;border-color:#ffffff1a;box-shadow:0 8px 24px #00000080}.header-lang-item{color:#bbb}.header-lang-item:hover{background:#ffffff14;color:#eee}.header-lang-item.is-active{color:#eee}}@media(max-width:480px){.header-inner{padding:0 16px;height:52px}.header-nav a{padding:4px 8px;font-size:13px}}.bg-canvas{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none}.main-content{flex:1;padding-top:0;position:relative;z-index:1}.not-found{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:80vh;text-align:center}.not-found h1{font-size:120px;font-weight:700;margin:0;color:#d2d2d7;line-height:1}.not-found p{font-size:18px;color:#86868b;margin:8px 0 24px}.not-found a{font-size:16px;font-weight:500}@media(prefers-color-scheme:dark){.not-found h1{color:#3a3a3c}}*,*:before,*:after{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fafafa;color:#111;transition:background .3s,color .3s}h1,h2,h3,h4,h5,h6{color:#111}a{color:#0071e3;text-decoration:none;transition:color .2s ease}a:hover{color:#0058b0}code{font-family:SF Mono,SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace}#root{display:flex;min-height:100vh;flex-direction:column}@media(prefers-color-scheme:dark){body{background:#0c0c0c;color:#f0f0f0}h1,h2,h3,h4,h5,h6{color:#f0f0f0}a{color:#4da3ff}a:hover{color:#6db8ff}}