@font-face{font-family:'Lora';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/lora-i-400-5cabfd.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Lora';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/lora-i-400-75db06.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Lora';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/lora-n-400-e12d62.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Lora';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/lora-n-400-ecda3b.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Lora';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/lora-n-600-e12d62.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Lora';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/lora-n-600-ecda3b.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Lora';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/lora-n-700-e12d62.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Lora';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/lora-n-700-ecda3b.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/hankengrotesk-n-500-af150b.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/hankengrotesk-n-500-605034.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/hankengrotesk-n-600-af150b.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/hankengrotesk-n-600-605034.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/hankengrotesk-n-700-af150b.woff2) format('woff2');unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/hankengrotesk-n-700-605034.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}

*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.55 var(--f-ui);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}img{height:auto}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.18em}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}ul,ol{padding:0;list-style:none}h1,h2,h3{text-wrap:balance}p{text-wrap:pretty}
button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}
.skip{position:absolute;left:-9999px;top:0}.skip:focus{left:12px;top:12px;z-index:999;background:#fff;color:#000;padding:9px 14px}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gut)}.nt{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}.hl a{text-decoration:none}.hl a:hover{text-decoration:underline;text-decoration-thickness:2px}
.thumb{display:block;position:relative;overflow:hidden;background:var(--soft)}.thumb img{width:100%;height:100%;object-fit:cover}.thumb svg{width:100%;height:100%}
.thumb.aifod{background:#15181d}.thumb.aifod::before{content:"";position:absolute;inset:-14%;background:var(--bg) center/cover no-repeat;filter:blur(20px) brightness(.66) saturate(1.15)}.thumb.aifod img{position:relative;object-fit:contain}
.r32{aspect-ratio:3/2}.r169{aspect-ratio:16/9}.r43{aspect-ratio:4/3}.r11{aspect-ratio:1/1}.r2110{aspect-ratio:16/10}
.burger{display:none;cursor:pointer;flex-direction:column;gap:5px;padding:12px;margin-left:auto}.burger span{display:block;width:24px;height:2px;background:currentColor}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.seclist li{padding:24px 0;border-bottom:1px solid var(--line)}.seclist li:first-child{padding-top:0}.seclist h2{font:var(--h3-l)}.seclist h2 a{text-decoration:none}.seclist h2 a:hover{text-decoration:underline}.seclist p{margin-top:6px;color:var(--muted)}
/* cards and lists (section pages, archive, related stories) */
.cards{display:grid;gap:34px 28px}.cards.c3{grid-template-columns:repeat(3,minmax(0,1fr))}.cards.c4{grid-template-columns:repeat(4,minmax(0,1fr))}.cards.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{display:flex;flex-direction:column;gap:14px}.card-b{display:flex;flex-direction:column;gap:8px}.card .hl{font:var(--h3)}.card .dek{font:var(--fdek-s);color:var(--muted)}
.river{display:flex;flex-direction:column}.rv{display:grid;grid-template-columns:minmax(150px,280px) 1fr;gap:26px;padding:24px 0;border-bottom:1px solid var(--line)}.rv:first-child{padding-top:0}
.rv>div{display:flex;flex-direction:column;gap:8px}.rv .hl{font:var(--h3-l)}.rv .dek{font:var(--fdek-s);color:var(--muted)}
.dek{font:var(--fdek)}.by{font:var(--fby);color:var(--muted)}
/* page shells (about, contact, privacy, section pages) */
.page{padding:42px 0 12px}.page-head{padding-bottom:26px;margin-bottom:30px;border-bottom:1px solid var(--line)}.page-head h1{font:var(--h1-page);letter-spacing:-.015em}.page-head .lede{font:var(--fdek);color:var(--muted);margin-top:12px;max-width:68ch}
.crumb{font:var(--fby);color:var(--muted);margin-bottom:12px}.crumb a{text-decoration:none}.crumb a:hover{text-decoration:underline}
.narrow{max-width:800px}.empty{border:1px dashed var(--line);padding:28px;color:var(--muted)}
/* long text */
.prose{font:var(--fbody);color:var(--ink-body,var(--ink))}.prose p{margin:0 0 1.15em}.prose h2{font:var(--prose-h2);margin:1.7em 0 .55em}.prose a{color:var(--accent-d);text-decoration:underline;text-underline-offset:.2em}
.prose ul,.prose ol{list-style:revert;padding-left:1.3em;margin:0 0 1.15em}.prose li{margin:.35em 0}.prose strong{font-weight:700}.prose em{font-style:italic}
.cform{margin:44px 0 12px}.cform h2{font:var(--prose-h2);margin-bottom:16px}.f{margin:0 0 16px}.f label{display:block;font:600 14px/1.3 var(--f-ui);margin-bottom:6px}
.f input,.f select,.f textarea{width:100%;padding:12px 14px;border:1px solid #b9bec5;background:#fff;border-radius:var(--rad,0)}.f textarea{min-height:150px}.f input:focus,.f select:focus,.f textarea:focus{outline:3px solid color-mix(in srgb,var(--accent) 35%,transparent);border-color:var(--accent-d)}
.btn{display:inline-block;background:var(--ink);color:#fff;border:0;padding:13px 22px;font:700 14px/1 var(--f-ui);text-decoration:none;cursor:pointer;border-radius:var(--rad,0)}.btn:hover{background:var(--accent-d)}
/* story page */
.story{padding:36px 0 8px}.story-col{max-width:calc(820px + 2*var(--gut));margin:0 auto;padding:0 var(--gut)}.story-head{margin:0 0 26px}.story-head .kicker{display:inline-block}
.story-head h1{font:var(--h1-story);letter-spacing:-.018em;margin:12px 0 16px}.story-head .dek{font:var(--fdek-story);color:var(--muted)}.story-by{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;gap:10px 18px;flex-wrap:wrap;font:var(--fby);color:var(--muted)}
.story-by b{color:var(--ink);font-weight:600}.disc{margin:0 0 22px}.disc p{background:var(--soft);border-left:3px solid var(--accent);padding:11px 15px;font:400 14px/1.5 var(--f-ui);color:var(--ink)}
.story-hero{max-width:calc(1080px + 2*var(--gut));margin:0 auto 30px;padding:0 var(--gut)}.story-hero .thumb{aspect-ratio:16/9;background:#ddd}.story-hero figcaption{font:var(--fby);color:var(--muted);padding-top:9px;text-transform:none;letter-spacing:0}.story-hero figcaption a{color:inherit}
.story-body{max-width:700px}.story-body .cover{margin:30px 0}.story-body .cover img{width:100%;border:1px solid var(--line)}.story-body figcaption{font:var(--fby);color:var(--muted);padding-top:8px}
.story-end{max-width:700px;margin:34px 0 0}.story-end h2{font:700 13px/1 var(--f-label);letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;padding-top:16px;border-top:2px solid var(--ink)}
.sources{font:400 15px/1.5 var(--f-ui);list-style:decimal;padding-left:1.4em}.sources li{margin:.4em 0}.sources a{color:var(--accent-d);overflow-wrap:anywhere}
.story-note{margin-top:24px;padding:14px 16px;background:var(--soft);font:400 14px/1.55 var(--f-ui);color:var(--muted)}.story-note strong{color:var(--ink)}
.more-h{font:var(--h2-s);margin:0 0 20px}.story-more{margin-top:54px;padding-top:26px;border-top:3px solid var(--ink)}
.prose,.sources,.story-head h1{overflow-wrap:anywhere}
@media(max-width:900px){.cards.c3,.cards.c4{grid-template-columns:repeat(2,minmax(0,1fr))}.rv{grid-template-columns:200px 1fr;gap:18px}}
@media(max-width:620px){.cards.c3,.cards.c4,.cards.c2{grid-template-columns:1fr}.rv{grid-template-columns:1fr}.rv .thumb{aspect-ratio:16/9}.page{padding-top:28px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}

/* evergreen pages: key facts, tables, related links */
.facts{margin:0 0 30px;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);background:transparent}
.facts>div{display:grid;grid-template-columns:minmax(120px,200px) minmax(0,1fr);gap:6px 26px;padding:14px 0;border-bottom:1px solid var(--line)}.facts>div:last-child{border-bottom:0}
.facts dt{font:700 12px/1.5 var(--f-label,var(--f-ui));letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.facts dd{font:400 16px/1.55 var(--f-ui);color:var(--ink);overflow-wrap:anywhere}.facts dd a{color:var(--accent-d);text-decoration:underline}
.tablewrap{margin:28px 0 10px;overflow-x:auto}.dtable{width:100%;border-collapse:collapse;font:400 15px/1.5 var(--f-ui)}
.dtable th{font:700 12px/1.3 var(--f-label,var(--f-ui));letter-spacing:.06em;text-transform:uppercase;text-align:left;color:var(--muted);padding:0 14px 10px 0;border-bottom:2px solid var(--ink)}
.dtable td{padding:13px 14px 13px 0;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere}.dtable td:first-child{font-weight:700}.dtable td:first-child a{color:var(--ink)}
.related{margin:0 0 26px;border:1px solid var(--line);border-left:4px solid var(--accent);padding:16px 18px;background:var(--soft)}
.related h2{font:700 12px/1 var(--f-label,var(--f-ui));letter-spacing:.08em;text-transform:uppercase;margin:0 0 10px;padding:0;border:0}
.related li{margin:9px 0}.related a{font:700 16px/1.4 var(--f-ui);color:var(--ink);text-underline-offset:3px}.related span{display:block;font:400 13px/1.4 var(--f-ui);color:var(--muted)}
.story-by span+span::before{content:"";}
@media(max-width:700px){.facts>div{grid-template-columns:1fr;gap:2px}.tablewrap{overflow:visible}.dtable thead{display:none}.dtable,.dtable tbody,.dtable tr,.dtable td{display:block;width:100%}.dtable tr{padding:14px 0;border-bottom:1px solid var(--line)}.dtable td{border:0;padding:3px 0}.dtable td::before{content:attr(data-label) ": ";font-weight:700;color:var(--muted)}.dtable td:first-child::before{content:""}}

:root{--max:1220px;--gut:clamp(16px,2.8vw,34px);--ink:#171717;--ink2:#333;--muted:#666058;--line:#ddd6ca;--paper:#faf7f2;--soft:#f1ece2;--accent:#c8372d;--accent-d:#a82a21;--rad:0;
--f-zh:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","WenQuanYi Micro Hei",sans-serif;--f-zh-serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;
--f-head:"Lora",Georgia,"Times New Roman",serif;--f-ui:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;--f-body:"Lora",Georgia,serif;--f-label:"Hanken Grotesk",system-ui,sans-serif;
--h3:700 20px/1.25 var(--f-head);--h3-l:700 25px/1.2 var(--f-head);--fdek:400 17.5px/1.55 var(--f-body);--fdek-s:400 16px/1.55 var(--f-body);--fby:500 12.5px/1.4 var(--f-ui);
--h1-page:700 clamp(32px,4vw,48px)/1.1 var(--f-head);--prose-h2:700 26px/1.22 var(--f-head);--fbody:400 19px/1.72 var(--f-body);--h1-story:700 clamp(32px,4.2vw,52px)/1.1 var(--f-head);--fdek-story:400 clamp(18px,1.9vw,22px)/1.55 var(--f-body);--h2-s:700 28px/1.15 var(--f-head)}
html[lang="zh-Hans"]{--f-head:"Lora",Georgia,"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;--f-body:"Hanken Grotesk",var(--f-zh);--f-ui:"Hanken Grotesk",var(--f-zh);--f-label:"Hanken Grotesk",var(--f-zh);--fbody:400 18.5px/1.95 var(--f-zh);--fdek:400 17px/1.8 var(--f-zh);--fdek-s:400 15.5px/1.75 var(--f-zh);--fdek-story:400 clamp(17px,1.8vw,20px)/1.8 var(--f-zh)}
html[lang="zh-Hans"] .kicker,html[lang="zh-Hans"] .by,html[lang="zh-Hans"] .nav a,html[lang="zh-Hans"] .util{letter-spacing:0;text-transform:none}
.kicker{font:700 12px/1 var(--f-ui);letter-spacing:.09em;text-transform:uppercase;color:var(--accent);text-decoration:none}.kicker:hover{text-decoration:underline}
.by{text-transform:none}.card .hl,.rv .hl{letter-spacing:-.005em}.alt{display:block;font:500 15px/1.45 var(--f-zh);color:var(--muted);margin-top:5px}html[lang="zh-Hans"] .alt{font:500 14px/1.4 var(--f-ui);letter-spacing:0}
.prose a{text-decoration-color:var(--accent)}.disc p{border-left-color:var(--accent)}
/* header */
.util{border-bottom:1px solid var(--line);font:500 12.5px/1 var(--f-ui);color:var(--muted)}.util .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:38px}.util .lang{display:inline-block;font:700 13px/1 var(--f-zh);color:var(--ink);text-decoration:none;border:1px solid var(--ink);padding:6px 11px}.util .lang:hover{background:var(--ink);color:#fff}
.mast .wrap{display:flex;flex-direction:column;align-items:center;text-align:center;padding-top:26px;padding-bottom:22px;gap:12px}.brand{display:flex;align-items:center;gap:14px;text-decoration:none}.brand .logo{display:block;height:64px;width:auto}
.util .dt{font:600 12.5px/1 var(--f-ui);letter-spacing:.02em}.util .mid{color:var(--muted)}.mast .tag{font:italic 400 17px/1.4 var(--f-body);color:var(--muted)}.mast .tag span{display:block;font:500 15px/1.5 var(--f-zh);font-style:normal;margin-top:2px}
.navbar{border-top:3px double var(--ink);border-bottom:1px solid var(--ink);background:var(--paper);position:sticky;top:0;z-index:60}.nav-row{display:flex;justify-content:center}.nav{display:flex;flex-wrap:wrap;justify-content:center}.nav a{padding:15px 18px;font:700 14.5px/1 var(--f-ui);text-decoration:none;position:relative}.nav a:hover{color:var(--accent)}.nav a[aria-current]{color:var(--accent)}.nav a[aria-current]::after{content:"";position:absolute;left:18px;right:18px;bottom:-1px;height:3px;background:var(--accent)}
/* home */
.top{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:0;padding:34px 0 38px;border-bottom:1px solid var(--ink)}.top-l{padding-right:34px;border-right:1px solid var(--line)}.top-r{padding-left:34px}
.lead>p:first-of-type{margin:16px 0 0}.lead h2{font:700 clamp(30px,3.7vw,46px)/1.12 var(--f-head);letter-spacing:-.01em;margin:11px 0 10px}html[lang="zh-Hans"] .lead h2{letter-spacing:0;line-height:1.3}.lead .dek{color:var(--ink2);margin:12px 0}
.top-r h2.rh{font:700 12px/1 var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);padding-bottom:11px;border-bottom:2px solid var(--ink)}html[lang="zh-Hans"] .top-r h2.rh{letter-spacing:.05em}
.lst li{padding:17px 0;border-bottom:1px solid var(--line)}.lst li:last-child{border:0}.lst .hl{font:700 19px/1.3 var(--f-head);margin:8px 0 4px}
.cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;padding:34px 0 10px}.cols section{padding:0 28px;border-left:1px solid var(--line)}.cols section:first-child{padding-left:0;border-left:0}.cols section:last-child{padding-right:0}
.cols h2{font:700 12px/1 var(--f-ui);letter-spacing:.1em;text-transform:uppercase;padding-bottom:11px;border-bottom:2px solid var(--ink);margin-bottom:20px}.cols h2 a{text-decoration:none;color:var(--accent)}html[lang="zh-Hans"] .cols h2{letter-spacing:.05em}
.cols .thumb{margin-bottom:14px}.cols article+article{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}.cols .hl{font:700 20px/1.28 var(--f-head);margin:8px 0 3px}.cols .dek{font:var(--fdek-s);color:var(--ink2);margin-top:8px}
.join{margin-top:46px;background:var(--ink);color:#fff}.join .wrap{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:40px;align-items:center;padding-top:40px;padding-bottom:42px}.join h2{font:700 clamp(26px,3vw,36px)/1.15 var(--f-head)}.join p{font:400 16.5px/1.65 var(--f-body);color:#cfc9bd;margin-top:12px}
.join-b{display:flex;flex-direction:column;gap:10px}.join-b a{display:block;border:1px solid #fff;color:#fff;text-decoration:none;font:700 15.5px/1.3 var(--f-ui);padding:15px 18px}.join-b a:hover{background:var(--accent);border-color:var(--accent)}.join-b a span{display:block;font:500 13.5px/1.4 var(--f-zh);opacity:.8;margin-top:3px}
/* footer */
.ft{background:#0f0f0f;color:#b9b3a8;font:400 14.5px/1.6 var(--f-ui)}.ft .wrap{padding-top:44px;padding-bottom:28px}.ft-g{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}.ft .brand .logo{height:46px}.ft p.tag{margin-top:14px;max-width:26em}
.ft h2{font:700 11.5px/1 var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:#e8847b;margin-bottom:14px}html[lang="zh-Hans"] .ft h2{letter-spacing:.05em}.ft li{margin:0 0 8px}.ft a{color:#fff;text-decoration:none}.ft a:hover{text-decoration:underline}.ft-b{margin-top:30px;padding-top:16px;border-top:1px solid #2a2a2a;font-size:13px;color:#8d887e}.ft-b a{color:#fff}.ft-b .bs{display:block;margin-top:8px;font:500 11.5px/1.5 var(--f-ui);letter-spacing:.04em;color:#77726a}html[lang="zh-Hans"] .ft-b .bs{letter-spacing:0}
@media(max-width:1000px){.top,.cols,.join .wrap{grid-template-columns:1fr}.top-l{padding-right:0;border-right:0;padding-bottom:26px;border-bottom:1px solid var(--line)}.top-r{padding-left:0;padding-top:22px}.cols section{padding:0 0 26px;border-left:0;border-bottom:1px solid var(--line);margin-bottom:26px}.cols section:last-child{border-bottom:0}.ft-g{grid-template-columns:1fr 1fr}.ft-g>div:first-child{grid-column:1/-1}}
@media(max-width:820px){.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);flex-direction:column;align-items:stretch;padding:4px var(--gut) 12px;border-bottom:1px solid var(--ink)}.nav a{padding:15px 2px;border-bottom:1px solid var(--line)}.nav a[aria-current]::after{display:none}.nt:checked ~ .wrap .nav{display:flex}.nav-row{justify-content:space-between;align-items:center}.burger{display:flex;margin-left:auto}}
@media(max-width:520px){.brand .logo{height:46px}.mast .tag{font-size:15px}.util .mid{display:none}}
/* two languages band + region chips */
.dual{margin-top:50px;border-top:3px double var(--ink);border-bottom:1px solid var(--ink);background:var(--soft)}.dual .wrap{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:48px;padding-top:40px;padding-bottom:42px;align-items:start}
.dual h2{font:700 clamp(26px,3.2vw,40px)/1.12 var(--f-head);letter-spacing:-.01em}.dual h2 em{font-style:normal;color:var(--accent)}html[lang="zh-Hans"] .dual h2{letter-spacing:0;line-height:1.3}.dual p{font:400 17px/1.7 var(--f-body);color:var(--ink2);margin-top:14px;max-width:34em}html[lang="zh-Hans"] .dual p{font:400 16.5px/1.9 var(--f-zh)}
.dual .nums{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ink)}.dual .nums div{padding:16px 14px 6px 0}.dual .nums div+div{padding-left:16px;border-left:1px solid var(--line)}.dual .nums b{display:block;font:700 42px/1 var(--f-head);color:var(--accent)}.dual .nums span{display:block;font:600 12px/1.4 var(--f-ui);letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-top:8px}html[lang="zh-Hans"] .dual .nums span{letter-spacing:0;text-transform:none;font-size:13px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px}.chips[hidden]{display:none}.chips button{font:700 13.5px/1 var(--f-ui);padding:10px 15px;border:1px solid var(--ink);background:#fff;color:var(--ink);cursor:pointer}.chips button:hover{background:var(--soft)}.chips button[aria-pressed=true]{background:var(--ink);color:#fff}.chips button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.rv[hidden]{display:none}
@media(max-width:1000px){.dual .wrap{grid-template-columns:1fr;gap:28px}}
@media print{.util,.navbar,.ft,.join,.dual,.chips,.story-more,.story-hero{display:none!important}body{background:#fff}a{text-decoration:none}.sources a::after{content:" (" attr(href) ")";font-size:9pt;color:#555}}