*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--ui-page);color:var(--ui-text);font:15px/1.85 "Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--ui-accent);outline-offset:5px;border-radius:5px}h1,h2,h3,p{margin-top:0}img{max-width:100%;height:auto}.content-header{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--ui-line);background:color-mix(in srgb,var(--ui-page) 95%,transparent);backdrop-filter:blur(12px)}.content-header-inner{max-width:1200px;min-height:76px;width:calc(100% - 96px);margin:auto;display:flex;align-items:center;gap:28px}.content-brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:650;white-space:nowrap}.content-brand img{border-radius:7px}.content-header nav{display:flex;gap:26px;margin-left:auto}.content-header nav a{display:flex;align-items:center;min-height:44px;font-size:14px}.content-header nav a:hover,.content-header nav a[aria-current]{color:var(--ui-accent)}.content-header-actions{display:flex;align-items:center;gap:10px}.content-theme{width:44px;height:44px;display:grid;place-items:center;background:transparent;border:0;color:var(--ui-muted);cursor:pointer}.content-theme svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.content-main{max-width:1200px;width:calc(100% - 96px);margin:0 auto;padding-bottom:72px}.content-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--ui-muted);padding-top:30px}.content-breadcrumb a:hover,.content-link:hover{color:var(--ui-accent)}.content-heading{padding:52px 0 44px;max-width:700px}.content-eyebrow{font-size:12px;letter-spacing:.06em;color:var(--ui-muted);margin-bottom:16px}.content-heading h1{font-size:clamp(32px,4vw,48px);letter-spacing:-.035em;line-height:1.4;margin-bottom:20px}.content-lead{color:var(--ui-muted);font-size:16px;line-height:1.9;margin-bottom:24px}.content-template-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px 28px}.content-template-card{min-width:0}.content-template-image{display:block;overflow:hidden;border-radius:10px;border:1px solid var(--ui-line);background:var(--ui-soft);padding:24px;transition:border-color .2s}.content-template-image:hover{border-color:var(--ui-accent-line)}.content-template-image img{display:block;width:100%;aspect-ratio:820 / 1160;object-fit:contain;box-shadow:0 6px 24px #1111110c;background:#fff;transition:transform .25s}.content-template-image:hover img{transform:translateY(-3px)}.content-template-caption{display:flex;align-items:flex-start;gap:12px;padding:17px 0 0}.content-template-caption>div{min-width:0;flex:1}.content-template-caption h2{font-size:17px;line-height:1.5;margin:0 0 5px}.content-template-caption p{font-size:13px;color:var(--ui-muted);margin:0}.content-use{font-size:12px;white-space:nowrap;min-height:44px;display:flex;align-items:center;gap:5px}.content-use:hover{color:var(--ui-accent)}.content-note{margin-top:64px;padding-top:32px;border-top:1px solid var(--ui-line);max-width:760px}.content-note h2{font-size:22px}.content-note p{color:var(--ui-muted)}.content-note p a,.guide-article p a{text-decoration:underline;text-underline-offset:4px}.content-button{display:inline-flex;justify-content:center;align-items:center;gap:14px;min-height:44px;padding:10px 20px;border-radius:8px;background:var(--ui-primary);color:var(--ui-on-primary);font-size:14px;transition:background .18s}.content-button:hover{background:var(--ui-primary-hover)}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.guide-card{display:flex;flex-direction:column;align-items:flex-start;padding:30px;border:1px solid var(--ui-line);border-radius:12px;transition:border-color .18s,background .18s}.guide-card:hover{border-color:var(--ui-accent-line);background:var(--ui-soft)}.guide-card h2{font-size:22px;line-height:1.55;margin:12px 0}.guide-card p{font-size:14px;color:var(--ui-muted)}.content-link{font-size:13px;display:inline-block;margin-top:auto;padding-top:18px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(210px,1fr);gap:80px;align-items:start;padding-top:44px}.guide-article{min-width:0}.article-header h1{font-size:clamp(28px,3vw,38px);line-height:1.45;letter-spacing:-.025em;margin:0 0 20px}.article-header .content-button{margin-bottom:30px}.article-toc{border-block:1px solid var(--ui-line);padding:22px 0;color:var(--ui-muted);font-size:14px;margin-bottom:14px}.article-toc>span{color:var(--ui-text);font-weight:600}.article-toc ol{padding-left:22px;margin:10px 0 0}.article-toc li{padding:3px 0}.article-toc a:hover{color:var(--ui-accent)}.guide-article section{padding-top:36px}.guide-article section h2{font-size:23px;line-height:1.5;margin:0 0 14px}.guide-article section p{margin-bottom:18px;overflow-wrap:anywhere}.guide-article section li{padding-bottom:9px}.guide-article strong{font-weight:650}.guide-example{padding:26px 28px;background:var(--ui-soft);border-radius:10px;border:1px solid var(--ui-line);margin:22px 0}.guide-example h3{font-size:19px}.guide-example .example-label{font-size:12px;color:var(--ui-muted)}.article-aside{position:sticky;top:116px;padding:28px;background:var(--ui-soft);border-radius:10px}.article-aside h2{font-size:21px;line-height:1.6}.article-aside>p:not(.content-eyebrow){font-size:13px;color:var(--ui-muted)}.article-aside .content-button{padding-inline:14px;width:100%;font-size:13px}.article-aside .content-link{display:block}.article-next{margin-top:20px;border-top:1px solid var(--ui-line)}.article-next p{font-size:13px;padding-top:20px;color:var(--ui-muted)}.content-footer{max-width:1200px;width:calc(100% - 96px);margin:auto;border-top:1px solid var(--ui-line);padding:26px 0 36px;display:flex;align-items:center;gap:20px;font-size:12px;color:var(--ui-muted)}.content-footer>a{font-size:17px;font-weight:650;color:var(--ui-text)}.content-footer>span{margin-right:auto}.content-footer nav{display:flex;flex-wrap:wrap;gap:20px}.content-skip{position:fixed;top:-100px;left:20px;z-index:30;padding:10px 18px;background:var(--ui-primary);color:var(--ui-on-primary)}.content-skip:focus{top:12px}@media(max-width:1000px){.content-template-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{gap:36px;grid-template-columns:minmax(0,1fr) 230px}.guide-grid{grid-template-columns:1fr}.guide-card h2{font-size:21px}}@media(max-width:700px){.content-header-inner,.content-main,.content-footer{width:calc(100% - 40px)}.content-header-inner{min-height:66px;gap:12px;flex-wrap:wrap;padding:12px 0}.content-brand{font-size:18px}.content-header-actions{margin-left:auto}.content-header nav{order:3;width:100%;margin:0;gap:24px;border-top:1px solid var(--ui-line);padding-top:5px}.content-header nav a{font-size:13px;min-height:36px}.content-heading{padding:34px 0}.content-breadcrumb{padding-top:23px}.content-template-grid{gap:26px 16px}.content-template-image{padding:12px}.content-template-caption{flex-direction:column;gap:1px;padding-top:12px}.content-template-caption h2{font-size:16px}.content-template-caption p{font-size:12px}.content-use{min-height:38px}.article-layout{display:block;padding-top:32px}.article-aside{display:none}.guide-article section h2{font-size:21px}.guide-article section{padding-top:28px}.guide-example{padding:20px}.guide-card{padding:24px}.content-footer{flex-wrap:wrap;gap:12px}.content-footer>span{margin-right:0}.content-footer nav{width:100%;gap:18px}.content-note{margin-top:40px}.content-main{padding-bottom:48px}}@media(max-width:359px){.content-template-grid{grid-template-columns:1fr}.content-header-inner,.content-main,.content-footer{width:calc(100% - 32px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
