:root{color-scheme:light;--ink:#152a28;--muted:#61726e;--mint:#dff6ee;--green:#087b5b;--line:#e3ebe7;--paper:#f7faf8;--radius:20px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-size:16px;line-height:1.7}a{color:var(--green);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:#06543f}a:focus-visible,button:focus-visible{outline:3px solid #0e9270;outline-offset:5px}::selection{background:var(--mint)}.shell{width:min(1120px,calc(100% - 48px));margin:auto}.topbar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.96)}.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:88px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:23px;font-weight:800;letter-spacing:-1px;text-decoration:none}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--green);color:white;font-size:19px;font-weight:600;letter-spacing:0}.top-links{display:flex;align-items:center;gap:24px}.top-links a{font-size:14px;text-decoration:none;color:var(--muted)}.top-links a[aria-current=page]{color:var(--ink);font-weight:700}.language{border-left:1px solid var(--line);padding-left:24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--ink);color:white!important;padding:11px 19px;border-radius:10px;font-size:14px;font-weight:650;text-decoration:none;line-height:1.5}.button:hover{background:#254a43}.button.light{background:var(--mint);color:var(--ink)!important}.hero{padding:72px 0 48px;max-width:860px}.eyebrow{display:flex;align-items:center;gap:9px;margin:0 0 15px;color:var(--green);font-size:12px;font-weight:750;text-transform:uppercase;letter-spacing:1.4px}.eyebrow:before{content:"";height:7px;width:7px;border-radius:50%;background:var(--green)}h1{font-size:clamp(36px,5.8vw,62px);line-height:1.13;font-weight:750;letter-spacing:-2.8px;margin:0 0 22px}.intro{color:var(--muted);font-size:20px;line-height:1.65;max-width:740px;margin:0}.layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:76px;padding:0 0 80px}.side{position:sticky;top:28px;align-self:start}.side-label{font-size:11px;font-weight:750;color:var(--muted);letter-spacing:1.1px;text-transform:uppercase;margin:0 0 14px}.side nav{display:grid;gap:3px}.side a{display:block;padding:9px 13px;border-radius:8px;text-decoration:none;color:var(--muted);font-size:14px}.side a[aria-current=page]{background:var(--mint);color:var(--green);font-weight:650}.side a:hover{background:var(--paper)}.side a[aria-current=page]:hover{background:var(--mint)}.article{max-width:760px}.article h2{margin:38px 0 14px;font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-.65px}.article h2:first-child{margin-top:0}.article h3{font-size:19px;margin:27px 0 9px;line-height:1.4;letter-spacing:-.25px}.article p{margin:0 0 17px;color:#435950}.article strong{color:var(--ink)}.article ul,.article ol{margin:0 0 22px;padding-left:22px;color:#435950}.article li{padding-left:5px;margin:8px 0}.note{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px 25px;margin:26px 0}.note p:last-child{margin:0}.note .note-label{color:var(--green);font-weight:700;font-size:13px;margin:0 0 8px}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:26px 0}.feature{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:23px}.feature h3{margin:0 0 9px;font-size:18px}.feature p{font-size:14px;line-height:1.7;margin:0}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;margin:24px 0}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.6;min-width:480px}th,td{padding:15px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:var(--paper);font-size:12px;font-weight:700;color:var(--muted)}td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}tr:last-child td{border-bottom:0}.cta{margin-top:42px;padding:29px 30px;border-radius:var(--radius);background:var(--mint);display:flex;justify-content:space-between;align-items:center;gap:22px}.cta h2{font-size:23px;margin:0 0 6px;letter-spacing:-.6px}.cta p{font-size:14px;margin:0;max-width:430px}.cta .button{flex-shrink:0}.updated{font-size:13px;color:var(--muted);margin:0 0 26px}.footer{border-top:1px solid var(--line);padding:30px 0;background:var(--paper)}.footer-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}.footer p{font-size:12px;color:var(--muted);margin:0}.footer-links{display:flex;gap:20px;flex-wrap:wrap}.footer-links a{font-size:12px;color:var(--muted);text-decoration:none}.footer-links a:hover{text-decoration:underline}.skip{position:absolute;left:16px;top:-80px;background:var(--ink);color:white;padding:8px 15px;z-index:5;border-radius:8px}.skip:focus{top:12px}.zh h1{letter-spacing:-1.8px}.zh .hero{max-width:900px}.zh .intro{line-height:1.8}.zh .article{line-height:1.9}.zh .article h2{letter-spacing:0}
@media(max-width:850px){.top-links{gap:17px}.top-links .desktop-link{display:none}.layout{grid-template-columns:160px minmax(0,1fr);gap:32px}.cta{display:block}.cta .button{margin-top:19px}.hero{padding-top:54px}h1{letter-spacing:-1.8px}}
@media(max-width:600px){.shell{width:calc(100% - 36px)}.topbar-inner{min-height:72px;gap:12px}.brand{font-size:21px}.brand-mark{height:30px;width:30px;border-radius:9px}.top-links{gap:13px}.top-links .button{display:none}.language{padding-left:0;border-left:0}.hero{padding:42px 0 29px}h1{font-size:38px;letter-spacing:-1.5px;margin-bottom:17px}.intro{font-size:17px;line-height:1.75}.layout{display:block;padding-bottom:48px}.side{position:static;margin-bottom:32px;border-bottom:1px solid var(--line);padding-bottom:19px}.side-label{display:none}.side nav{display:flex;gap:5px;flex-wrap:wrap}.side a{padding:8px 11px;font-size:13px}.article h2{font-size:23px;margin-top:31px}.article h3{font-size:18px}.feature-grid{grid-template-columns:1fr}.feature{padding:20px}.note{padding:20px}.cta{padding:24px}.cta h2{font-size:22px}.footer-inner{display:block}.footer-links{gap:14px;margin-top:15px}table{font-size:13px}th,td{padding:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.brand-mascot{height:42px;width:42px;object-fit:contain;flex-shrink:0}@media(max-width:600px){.brand-mascot{height:38px;width:38px}}
.hero:has(.page-mascot){position:relative;max-width:none;padding-right:200px}.page-mascot{position:absolute;right:20px;top:76px;width:160px;height:160px;object-fit:contain;pointer-events:none}@media(max-width:850px){.hero:has(.page-mascot){padding-right:140px}.page-mascot{width:115px;height:115px;right:0;top:66px}}@media(max-width:600px){.hero:has(.page-mascot){padding-right:0}.page-mascot{display:none}}
.hero h1,.hero .intro{animation:content-appear .4s ease-out both}.page-mascot{animation:content-breathe 8s ease-in-out infinite;transform-origin:50% 85%}.brand-mascot{transition:transform .35s cubic-bezier(.22,1,.36,1)}.brand:hover .brand-mascot{transform:translateY(-1px) rotate(-3deg)}.button{transition:background .2s,box-shadow .25s,transform .25s cubic-bezier(.22,1,.36,1)}.button:hover{transform:translateY(-1px);box-shadow:0 4px 14px #152a2810}.button:active{transform:scale(.99)}.feature{transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .25s}.feature:hover{transform:translateY(-2px);border-color:#c9e1d2}.side a,.top-links a,.footer-links a{transition:background .2s,color .2s}
@keyframes content-appear{from{opacity:0}to{opacity:1}}@keyframes content-breathe{0%,100%{transform:none}50%{transform:translateY(-1px) scale(1.018)}}
@media(hover:none){.button:hover,.feature:hover{transform:none;box-shadow:none}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.mascot-picture{display:contents}.breadcrumbs{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted);margin-bottom:20px}.breadcrumbs a{text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs>[aria-hidden]{color:#9db3a7}tr[id]{scroll-margin-top:24px}