:root{--background:0 0% 100%;--foreground:220 20% 10%;--card:0 0% 100%;--card-foreground:220 20% 10%;--primary:160 84% 29%;--primary-foreground:0 0% 100%;--secondary:40 20% 97%;--secondary-foreground:220 20% 10%;--muted-hsl:40 20% 96%;--muted-foreground:220 9% 46%;--border-hsl:220 13% 91%;--section-dark:235 33% 14%;--radius:12px;--container:1080px;--font-display:"Avenir Next", "SF Pro Display", "Helvetica Neue", sans-serif;--font-body:"PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-mono:"SFMono-Regular", "Roboto Mono", Consolas, monospace}*{box-sizing:border-box}html{background:hsl(var(--background))}body{font-family:var(--font-body);color:hsl(var(--foreground));background:hsl(var(--background));-webkit-font-smoothing:antialiased;margin:0;line-height:1.75}a{color:inherit}.money{font-family:var(--font-display);font-variant-numeric:lining-nums tabular-nums;font-feature-settings:"lnum" 1, "tnum" 1;letter-spacing:-.025em;font-style:normal;font-weight:700;line-height:1}img{max-width:100%;display:block}.container{width:min(var(--container), calc(100% - 32px));margin-inline-start:auto;margin-inline-end:auto}.section{padding:88px 0}.section-gray{background:hsl(var(--secondary))}.section-dark{background:hsl(var(--section-dark));color:#fff}.section-label{text-align:center;letter-spacing:.2em;text-transform:uppercase;color:hsl(var(--muted-foreground));margin-bottom:12px;font-size:11px;font-weight:700;display:block}.section-title{font-family:var(--font-display);text-align:center;margin:0;font-size:max(30px,min(4vw,40px));line-height:1.2}.section-divider{background:hsl(var(--primary));border-radius:1px;width:40px;height:2px;margin:16px auto 0;display:block}.section-intro{max-width:680px;color:hsl(var(--muted-foreground));text-align:center;margin:18px auto 44px;font-size:16px}.card{border:1px solid hsl(var(--border-hsl));border-radius:var(--radius);background:hsl(var(--card))}.card-link{text-decoration:none;transition:transform .18s,box-shadow .18s,border-color .18s;display:block}.card-link:hover{border-color:hsl(var(--primary) / .38);transform:translateY(-2px);box-shadow:0 8px 30px #05966914}.button{border:1px solid hsl(var(--border-hsl));min-height:42px;color:hsl(var(--foreground));background:#fff;border-radius:8px;justify-content:center;align-items:center;padding:10px 18px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.button-primary{border-color:hsl(var(--primary));background:hsl(var(--primary));color:hsl(var(--primary-foreground))}.meta{color:hsl(var(--muted-foreground));font-size:14px}.tag{border:1px solid hsl(var(--primary) / .16);min-height:28px;color:hsl(var(--primary));background:hsl(var(--primary) / .06);border-radius:999px;align-items:center;padding:4px 10px;font-size:13px;font-weight:600;display:inline-flex}.site-header{z-index:10;border-bottom:1px solid hsl(var(--border-hsl));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffe6;position:sticky;top:0}.site-nav{justify-content:space-between;align-items:center;gap:24px;height:60px;display:flex}.brand{line-height:1.2;text-decoration:none}.brand strong{font-size:15px;display:block}.brand span{color:hsl(var(--muted-foreground));font-size:11px}.nav-links{color:inherit;flex-wrap:nowrap;justify-content:flex-end;align-items:center;gap:18px;font-size:14px;display:flex}.nav-links a{text-decoration:none}.nav-links a:hover{color:inherit}.nav-community{position:relative}.community-trigger{color:inherit;font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;padding:0;display:inline-flex}.community-trigger:hover{color:hsl(var(--foreground))}.community-trigger:focus-visible{color:hsl(var(--foreground))}.community-dropdown{z-index:30;border:1px solid hsl(var(--border-hsl));opacity:0;visibility:hidden;background:#fffffffa;border-radius:8px;min-width:180px;padding:8px;transition:opacity .16s,transform .16s,visibility .16s;display:grid;position:absolute;top:calc(100% + 12px);left:50%;transform:translate(-50%,-4px);box-shadow:0 12px 32px #0f172a1f}.nav-community:after{content:"";width:190px;height:14px;position:absolute;top:100%;left:50%;transform:translate(-50%)}.nav-community:hover .community-dropdown,.nav-community:focus-within .community-dropdown{opacity:1;visibility:visible;transform:translate(-50%)}.community-dropdown a{color:hsl(var(--foreground));white-space:nowrap;border-radius:6px;justify-content:space-between;align-items:center;gap:16px;padding:9px 10px;display:flex}.community-dropdown a:hover{background:hsl(var(--secondary))}.community-dropdown a:focus-visible{background:hsl(var(--secondary))}.mobile-nav{display:none}.footer{background:hsl(var(--section-dark));color:#ffffff52;text-align:center;border-top:1px solid #ffffff0f;padding:28px 0;font-size:12px}.prose{max-width:760px;margin-inline-start:auto;margin-inline-end:auto;font-size:17px}.prose h2{margin-top:44px;margin-bottom:12px;font-size:25px;line-height:1.35}.prose h3{margin-top:32px;margin-bottom:10px;font-size:20px}.prose p,.prose li{color:hsl(var(--foreground) / .86)}.prose blockquote{border-left:3px solid hsl(var(--primary));color:hsl(var(--muted-foreground));margin:28px 0;padding:2px 0 2px 18px}@media (max-width:1240px){.desktop-nav{display:none}.site-nav{position:relative}.mobile-nav{display:block}.mobile-nav>summary{border:1px solid hsl(var(--border-hsl));cursor:pointer;background:#fff;border-radius:8px;place-items:center;width:40px;height:40px;list-style:none;display:grid}.mobile-nav>summary::-webkit-details-marker{display:none}.mobile-community>summary::-webkit-details-marker{display:none}.hamburger{gap:4px;width:18px;display:grid}.hamburger i{background:hsl(var(--foreground));border-radius:1px;width:100%;height:2px;display:block}.mobile-menu-panel{z-index:30;border:1px solid hsl(var(--border-hsl));background:#fffffffa;border-radius:8px;width:min(300px,100vw - 32px);padding:10px;display:grid;position:absolute;top:calc(100% + 10px);right:0;box-shadow:0 14px 36px #0f172a24}.mobile-menu-panel>a,.mobile-community>summary,.mobile-community a{color:hsl(var(--foreground));padding:10px 12px;text-decoration:none}.mobile-menu-panel>a:hover,.mobile-community>summary:hover,.mobile-community a:hover{background:hsl(var(--secondary));border-radius:6px}.mobile-menu-panel>a:focus-visible{background:hsl(var(--secondary));border-radius:6px}.mobile-community>summary:focus-visible{background:hsl(var(--secondary));border-radius:6px}.mobile-community a:focus-visible{background:hsl(var(--secondary));border-radius:6px}.mobile-community>summary{cursor:pointer;list-style:none}.mobile-community>summary:after{content:"⌄";float:right}.mobile-community[open]>summary:after{transform:rotate(180deg)}.mobile-community div{padding-left:14px;display:grid}.mobile-community a{justify-content:space-between;gap:12px;font-size:13px;display:flex}}@media (max-width:720px){.section{padding:64px 0}.site-nav{flex-direction:row;align-items:center;height:60px;padding:0}}.link-with-arrow{padding-block-start:10px;padding-block-end:10px;display:inline-block}