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:root{color-scheme:light dark;--paper:#f7f6f2;--surface:#efeee9;--ink:#243b4c;--text:#374b56;--muted:#606f77;--line:#dcded9;--gold:#795b31;--green:#287054;--focus:#346c95;--night:#243b4c;--night-text:#f8f5ed;--night-muted:#d1dadd;--radius:20px;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-synthesis:none;font-weight:400;font-size:100%;line-height:1.65;background:var(--paper);color:var(--text)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0}a{color:inherit;text-decoration:none}button,summary,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--focus);outline-offset:6px;border-radius:4px}button{font:inherit}img{display:block;max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{color:var(--ink);font-weight:500}h1{font-size:clamp(2.7rem,5vw,4.25rem);line-height:1.2;letter-spacing:-.065em}h2{font-size:clamp(1.7rem,3vw,2.1rem);line-height:1.4;letter-spacing:-.04em}h3{font-size:1.125rem;line-height:1.6}p{max-width:65ch}small{font-size:.875rem}::selection{background:#ddcda7;color:#203747}.shell{max-width:1120px;margin-inline:auto;padding-inline:40px}.skip{position:fixed;top:-80px;left:20px;padding:8px 16px;z-index:20;background:var(--ink);color:var(--paper)}.skip:focus{top:12px}.site-header{border-bottom:1px solid 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li:last-child{border-bottom:0}.state-label{color:var(--ink);font-weight:500}.dot{display:inline-block;width:8px;height:8px;border:1px solid var(--muted);border-radius:50%;align-self:center}.dot.armed{background:var(--muted)}.dot.active{background:var(--green);border-color:var(--green)}.states .description{color:var(--muted);overflow-wrap:anywhere}.note{font-size:.875rem;color:var(--muted);margin-top:17px}.faq-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:64px}.faq-aside p{margin-top:14px;color:var(--muted);font-size:.9375rem;max-width:25ch}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative;font-size:1rem;font-weight:500;color:var(--ink);line-height:1.65}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after,.faq-list summary::before{position:absolute;content:"";background:var(--muted);width:12px;height:1px;right:5px;top:34px;transition:transform .2s ease}.faq-list summary::before{transform:rotate(90deg)}.faq-list details[open] summary::before{transform:rotate(0)}.faq-answer{padding:0 32px 25px 0;color:var(--muted);font-size:1rem;line-height:1.9}.faq-answer p+p{margin-top:12px}.faq-answer a{text-decoration:underline;text-underline-offset:4px}.contact{margin-block:8px 54px;background:var(--night);color:var(--night-text);border-radius:var(--radius);padding:38px 42px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.contact h2{color:var(--night-text);font-size:1.65rem;letter-spacing:-.035em}.contact p{color:var(--night-muted);font-size:.9375rem;margin-top:10px;line-height:1.85}.contact-address{text-align:right}.contact-address a{font-size:clamp(1.1rem,2.3vw,1.6rem);letter-spacing:-.025em;border-bottom:1px solid #d1dadd70;padding-bottom:7px;display:inline-block}.contact-address a:hover{border-color:currentColor}.contact-address p{font-size:.8125rem}.site-footer{border-top:1px solid var(--line);padding-block:26px 32px}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;font-size:.8125rem;color:var(--muted)}.footer-brand{letter-spacing:-.015em;color:var(--ink);font-size:.9375rem}.footer-meta{display:flex;gap:24px}.footer-meta a:hover{text-decoration:underline;text-underline-offset:4px}.reveal{animation:arrive .25s ease both}.reveal-delayed{animation-delay:.08s}@keyframes arrive{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#101d26;--surface:#182832;--ink:#eeeae1;--text:#d9deda;--muted:#afbdc3;--line:#34454e;--gold:#d1ae73;--green:#8cc8a9;--focus:#a0c4df;--night:#1d303d;--night-text:#f7f2e8;--night-muted:#bdcbd0}:root:not([data-theme=light]) .brand-object img{filter:drop-shadow(0 24px 32px #0004)}:root:not([data-theme=light]) .contact{border:1px solid var(--line)}}
@media(max-width:760px){.shell{padding-inline:24px}.header-inner{min-height:76px;gap:12px}.nav{gap:18px;font-size:.875rem}.language{padding-left:16px!important}.brand{gap:8px}.brand img{width:32px;height:32px}.wordmark{font-size:1.125rem}.hero{grid-template-columns:1fr 150px;gap:24px;padding-block:54px 52px}.brand-object img{width:140px;height:140px}.brand-object figcaption{font-size:.8125rem;margin-top:20px}.eyebrow{font-size:.8125rem;margin-bottom:18px;letter-spacing:.025em}.hero-copy>p{font-size:1rem}.steps{gap:22px}.step+.step{padding-left:20px}.split{gap:36px}.faq-layout{grid-template-columns:1fr;gap:25px}.faq-aside p{max-width:none}.contact{padding:30px;gap:25px;grid-template-columns:1fr}.contact-address{text-align:left}.contact-address a{font-size:1.4rem}.section{padding-block:34px 40px}}
@media(max-width:540px){.shell{padding-inline:22px}.nav{gap:15px}.nav a{font-size:.875rem}.language{padding-left:12px!important}.brand img{width:30px;height:30px}.wordmark{font-size:1rem}.hero{grid-template-columns:minmax(0,1fr);position:relative;padding-block:42px 40px;gap:30px}.hero-copy{max-width:100%}h1{font-size:2.75rem;line-height:1.25;letter-spacing:-.055em}.hero-copy>p{margin-top:22px;max-width:32ch}.brand-object{position:absolute;right:2px;top:20px}.brand-object img{width:54px;height:54px;filter:none}.brand-object figcaption{display:none}.eyebrow{font-size:.8125rem;margin-right:64px}.eyebrow::before{width:20px}.hero-links{margin-top:24px;gap:22px}.steps{grid-template-columns:1fr;gap:23px}.step+.step{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:22px}.step p{margin-top:6px}.split{grid-template-columns:1fr;gap:30px}.section-label{margin-bottom:23px}.faq-list summary{padding-block:21px}.faq-answer{padding-right:10px}.contact{margin-block:4px 36px;padding:27px 25px}.contact h2{font-size:1.5rem}.contact-address a{font-size:1.25rem;overflow-wrap:anywhere}.footer-inner{align-items:flex-start;flex-direction:column;gap:12px}.footer-meta{flex-wrap:wrap;gap:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

:root[data-theme=dark]{--paper:#101d26;--surface:#182832;--ink:#eeeae1;--text:#d9deda;--muted:#afbdc3;--line:#34454e;--gold:#d1ae73;--green:#8cc8a9;--focus:#a0c4df;--night:#1d303d;--night-text:#f7f2e8;--night-muted:#bdcbd0}
.theme-toggle{display:inline-grid;place-items:center;flex:none;width:32px;height:40px;background:transparent;border:0;padding:0;color:var(--muted);font-size:1.5rem;line-height:1;cursor:pointer}.theme-toggle[hidden]{display:none}.theme-toggle:hover{color:var(--gold)}.language{margin-right:-14px}.policy-hero{padding-block:65px 52px;max-width:780px}.policy-hero h1{font-size:clamp(2.65rem,5vw,3.75rem)}.policy-hero .lede{font-size:1.0625rem;line-height:1.9;margin-top:24px;color:var(--muted);max-width:46ch}.policy-meta{display:flex;gap:18px;font-size:.875rem;color:var(--muted);margin-top:22px}.policy-layout{border-top:1px solid var(--line);padding-top:38px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:70px}.toc{align-self:start;position:sticky;top:35px;display:flex;flex-direction:column;gap:13px;font-size:.875rem;color:var(--muted)}.toc-title{font-size:.8125rem;color:var(--gold);margin-bottom:8px;letter-spacing:.05em}.toc a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:5px}.policy-section{padding-bottom:38px;margin-bottom:35px;border-bottom:1px solid var(--line);scroll-margin-top:32px}.policy-section h2{font-size:1.375rem;letter-spacing:-.025em;margin-bottom:17px;display:flex;gap:18px;align-items:baseline}.policy-section h2 span{color:var(--gold);font:400 .8125rem ui-monospace,SFMono-Regular,monospace}.policy-section p{font-size:1rem;line-height:1.95}.policy-section p+p{margin-top:16px}.policy-section a{overflow-wrap:anywhere;text-decoration:underline;text-underline-offset:4px}.policy-section ul{margin:14px 0;padding-left:22px;line-height:1.95}.policy-section li+li{margin-top:8px}.policy-draft{background:var(--surface);border-radius:12px;padding:18px 22px;font-size:.875rem;color:var(--muted);line-height:1.85;margin-bottom:45px}.back-link{margin-bottom:26px;font-size:.9375rem}html[lang=en] h1{letter-spacing:-.06em}html[lang=en] .hero{grid-template-columns:minmax(0,1fr) 240px;gap:44px}html[lang=en] .hero h1{font-size:clamp(2.6rem,4.8vw,3.9rem)}html[lang=en] .states li{grid-template-columns:12px minmax(80px,max-content) minmax(0,1fr)}
@media(max-width:760px){.nav{gap:20px}.language{margin-right:-10px}.policy-layout{grid-template-columns:160px minmax(0,1fr);gap:32px}.policy-hero{padding-block:48px 40px}html[lang=en] .hero{grid-template-columns:minmax(0,1fr) 140px;gap:22px}}
@media(max-width:540px){.nav{gap:10px}.language{margin-right:-5px}.header-inner{gap:8px}.theme-toggle{width:28px}.policy-layout{grid-template-columns:minmax(0,1fr);gap:30px;padding-top:26px}.toc{position:static;display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;padding-bottom:27px;border-bottom:1px solid var(--line)}.toc-title{grid-column:1/-1;margin:0 0 3px}.policy-hero h1{font-size:2.65rem}.policy-meta{gap:12px;flex-wrap:wrap}.policy-section{padding-bottom:28px;margin-bottom:28px}.policy-section h2{font-size:1.25rem;gap:12px}html[lang=en] .hero{grid-template-columns:1fr}html[lang=en] .hero h1{font-size:2.7rem}.policy-hero .lede{font-size:1rem}}

@media(max-width:380px){.site-header .brand img{display:none}.nav{gap:8px}.wordmark{font-size:1rem}}

@media(max-width:380px){html[lang=zh-Hans] h1{font-size:2.4rem}}

.policy-layout>article{min-width:0}.toc a{overflow-wrap:anywhere}h1{overflow-wrap:break-word}