:root{color-scheme:light;--paper:#f7f8f5;--canvas:#e9ebe5;--ink:#252922;--muted:#505950;--forest:#34463a;--soft:#edf0eb;--gutter:clamp(20px,6vw,82px);--content:1180px;--serif:"Noto Serif SC","Songti SC","SimSun",serif;--sans:"DM Sans","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--canvas);color:var(--ink);font:17px/1.82 var(--serif)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}a:focus-visible,button:focus-visible{outline:3px solid #536d58;outline-offset:4px}.topbar{height:74px;width:min(calc(100% - 2*var(--gutter)),var(--content));margin:auto;display:flex;align-items:center;justify-content:space-between;font:15px var(--sans)}.brand{display:flex;align-items:center;gap:10px;font-weight:600}.brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:#e1e7de;color:var(--forest);font:500 14px var(--serif)}.nav{display:flex;align-items:center;gap:25px}.nav a:hover,.return:hover{color:#1d3424}.lang{border:0;background:none;color:var(--forest);font:600 14px var(--sans);cursor:pointer;padding:10px 0}.page{width:min(calc(100% - 2*var(--gutter)),var(--content));margin:auto;background:var(--paper)}.post-hero{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(320px,.94fr);min-height:420px}.post-intro{padding:clamp(34px,5vw,70px);display:flex;flex-direction:column;justify-content:center}.post-title{font:400 clamp(38px,4.6vw,60px)/1.2 var(--serif);letter-spacing:-.025em;text-wrap:balance;margin:0;max-width:700px}.dek{font-size:18px;line-height:1.75;max-width:570px;margin:20px 0 0;color:#384038}.post-meta{display:flex;flex-wrap:wrap;gap:7px 17px;margin:20px 0 0;color:var(--muted);font:14px/1.6 var(--sans)}.post-action{display:inline-flex;align-items:center;min-height:44px;width:max-content;padding:0 17px;margin-top:20px;background:var(--forest);color:#fff;font:600 15px var(--sans);transition:transform .2s,background .2s}.post-action:hover{background:#263a2c;transform:translateY(-2px)}.post-hero figure{margin:0;min-height:420px;display:grid;grid-template-rows:1fr auto;background:#dce2da}.post-hero figure img{width:100%;height:100%;min-height:370px;object-fit:cover}.post-hero figcaption{font:13px/1.5 var(--sans);color:#f7f8f5;background:#39443c;padding:8px 14px}.post-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(220px,1fr);gap:clamp(32px,5vw,72px);padding:clamp(36px,5.5vw,72px)}.post-body{min-width:0}.post-body h2{font:400 clamp(25px,2.8vw,34px)/1.35 var(--serif);text-wrap:balance;margin:38px 0 12px}.post-body h2:first-child{margin-top:0}.post-body p{margin:0 0 18px}.post-body ul{padding-left:23px;margin:0 0 22px}.post-body li{padding-left:5px;margin:7px 0}.callout{padding:17px 20px;background:var(--soft);margin:28px 0;font-size:16px;line-height:1.75}.post-aside{font:15px/1.75 var(--sans);color:#3c453d}.post-aside section{padding:18px;background:var(--soft)}.post-aside section+section{margin-top:20px}.post-aside h2{font:600 16px/1.5 var(--sans);margin:0 0 11px;color:var(--forest)}.post-aside p{margin:0 0 9px}.post-aside ul{padding-left:18px;margin:0}.post-aside li{margin:0 0 10px}.post-aside a{text-decoration:underline;text-decoration-color:#aeb8ad;text-underline-offset:3px;overflow-wrap:anywhere}.toc a{display:block;text-decoration:none;padding:4px 0;color:#586159}.footer{width:min(calc(100% - 2*var(--gutter)),var(--content));margin:auto;text-align:center;font:14px/1.6 var(--sans);padding:24px 16px 34px}.footer a{color:var(--forest)}.footer-nav{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 22px;margin-bottom:12px}.lang-section[hidden]{display:none}.info-hero{padding:clamp(42px,7vw,92px);background:#e5e9e2}.info-hero h1{font:400 clamp(38px,5vw,62px)/1.2 var(--serif);margin:0;text-wrap:balance}.info-hero p{font-size:19px;max-width:720px;margin:18px 0 0}.info-layout{max-width:900px;padding:clamp(34px,5.5vw,72px)}.info-layout h2{font:400 29px/1.35 var(--serif);margin:34px 0 10px}.info-layout h2:first-child{margin-top:0}.info-layout p,.info-layout li{max-width:74ch}.info-layout li{margin:8px 0}.info-layout a{text-decoration:underline;text-underline-offset:3px;color:#344d39}@media(max-width:780px){.post-hero{grid-template-columns:1fr .9fr;min-height:360px}.post-hero figure{min-height:360px}.post-hero figure img{min-height:315px}.post-intro{padding:30px}.post-title{font-size:clamp(36px,5.5vw,51px)}.post-layout{grid-template-columns:1fr;padding:38px;gap:30px}.post-aside{display:grid;grid-template-columns:1fr 1fr;gap:16px}.post-aside section+section{margin-top:0}}@media(max-width:560px){body{font-size:16px}.topbar{height:64px}.nav{gap:14px}.nav a{display:none}.brand{font-size:14px}.brand-mark{width:33px;height:33px}.post-hero{display:flex;flex-direction:column-reverse;min-height:0}.post-hero figure{min-height:0;grid-template-rows:220px auto}.post-hero figure img{min-height:0;height:220px}.post-intro{padding:26px 22px 30px}.post-title{font-size:36px}.dek{font-size:17px;margin-top:13px}.post-meta{margin-top:15px;font-size:13px}.post-layout{padding:30px 22px;gap:30px}.post-body h2{font-size:25px;margin-top:30px}.post-aside{display:block}.post-aside section+section{margin-top:18px}.info-hero{padding:38px 23px}.info-hero h1{font-size:36px}.info-hero p{font-size:17px}.info-layout{padding:30px 23px}.info-layout h2{font-size:25px}.footer{padding-bottom:24px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.post-action{transition:none}}

@keyframes editorial-rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes editorial-settle{from{opacity:.75;transform:scale(1.025)}to{opacity:1;transform:scale(1)}}
.motion-ready .post-intro>*{animation:editorial-rise .65s cubic-bezier(.2,.7,.2,1) both}
.motion-ready .post-intro .dek{animation-delay:90ms}.motion-ready .post-intro .post-meta{animation-delay:160ms}.motion-ready .post-intro .post-action{animation-delay:230ms}
.motion-ready .post-hero figure img{animation:editorial-settle .9s cubic-bezier(.2,.7,.2,1) both}
.motion-ready .post-body> .lang-section>section{animation:editorial-rise .7s cubic-bezier(.2,.7,.2,1) both}
@media(max-width:780px){.post-title{font-size:36px;letter-spacing:-.035em}}
@media(prefers-reduced-motion:reduce){.motion-ready .post-intro>*,.motion-ready .post-hero figure img,.motion-ready .post-body> .lang-section>section{animation:none}}

.info-hero{display:grid;grid-template-columns:minmax(0,.82fr) minmax(300px,1.18fr);gap:clamp(28px,5vw,70px);align-items:center}
.info-hero-copy{min-width:0}.info-hero-media{margin:0;background:#dfe5dc}.info-hero-media img{width:100%;height:300px;object-fit:cover}.info-image-note{margin:0;padding:10px 12px 12px;color:#536057;font:13px/1.5 var(--sans)}
@media(max-width:780px){.info-hero{grid-template-columns:1fr}.info-hero-media{max-width:520px}.info-hero-media img{height:220px}}

.motion-ready .info-hero-copy>*{animation:editorial-rise .65s cubic-bezier(.2,.7,.2,1) both}
.motion-ready .info-hero-copy p{animation-delay:90ms}.motion-ready .info-hero-copy .info-hero-action{animation-delay:170ms}
.motion-ready .info-hero-media{animation:editorial-settle .9s cubic-bezier(.2,.7,.2,1) both}
.motion-ready .info-layout>section{animation:editorial-rise .7s cubic-bezier(.2,.7,.2,1) both}
@media(prefers-reduced-motion:reduce){.motion-ready .info-hero-copy>*,.motion-ready .info-hero-media,.motion-ready .info-layout>section{animation:none}}

/* Topic guides use a reading list rather than a generic card grid. */
.topic-page .info-hero{min-height:440px}
.topic-page .info-hero-copy{display:flex;flex-direction:column;align-items:flex-start}
.topic-page .info-hero h1{max-width:650px}
.topic-index-note{margin-top:22px!important;color:var(--muted);font:14px/1.6 var(--sans)!important}
.topic-list{padding:0 clamp(22px,5.5vw,72px) 18px;background:var(--paper)}
.topic-list-head{display:flex;justify-content:space-between;gap:16px;padding:20px 0 14px;border-top:1px solid #d9ded7;border-bottom:1px solid #d9ded7;color:var(--muted);font:600 13px/1.5 var(--sans);letter-spacing:.04em;text-transform:uppercase}
.topic-card{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:clamp(16px,2.5vw,30px);align-items:end;padding:25px 0;border-bottom:1px solid #d9ded7}
.topic-card:last-child{border-bottom:0}
.topic-number{grid-column:1;grid-row:1;align-self:start;color:#899487;font:400 23px/1.2 var(--serif);font-variant-numeric:lining-nums;letter-spacing:-.03em;padding-top:1px}
.topic-card-copy{grid-column:2;grid-row:1;min-width:0}
.topic-card .article-meta{margin:0 0 8px;color:#647066;font:600 12px/1.45 var(--sans);letter-spacing:.045em}
.topic-card h2{margin:0;font:400 clamp(23px,2.5vw,31px)/1.3 var(--serif);text-wrap:balance}
.topic-card h2 a:hover{color:#37533e}
.topic-card-copy>p:not(.article-meta){max-width:68ch;margin:9px 0 0;color:#4c584e;font-size:15px;line-height:1.7}
.topic-read{grid-column:3;grid-row:1;align-self:end;color:var(--forest);font:600 14px/1.5 var(--sans);white-space:nowrap;padding:0 0 3px 14px}
.topic-read:hover{text-decoration:underline;text-underline-offset:4px}
@media(max-width:780px){.topic-page .info-hero{min-height:0}.topic-card{grid-template-columns:34px minmax(0,1fr);gap:0 16px;align-items:start;padding:22px 0}.topic-number{grid-column:1;grid-row:1;font-size:20px}.topic-card-copy{grid-column:2;grid-row:1}.topic-read{grid-column:2;grid-row:2;justify-self:end;margin-top:14px;padding:0}}
@media(max-width:560px){.topic-list{padding:0 22px 14px}.topic-list-head{padding-top:18px}.topic-card{padding:21px 0}.topic-card .article-meta{margin-bottom:7px}.topic-card h2{font-size:23px}.topic-card-copy>p:not(.article-meta){margin-top:8px;font-size:15px;line-height:1.7}.topic-read{display:block;margin-top:12px;font-size:14px}}

/* Compact, keyboard-accessible navigation on phones. */
.menu-toggle{display:none;align-items:center;gap:8px;border:1px solid #cbd2c8;border-radius:999px;background:var(--paper);color:var(--forest);padding:8px 13px;font:600 14px var(--sans);cursor:pointer}
.menu-icon,.menu-icon::before,.menu-icon::after{display:block;width:15px;height:1px;background:currentColor;content:"";position:relative}
.menu-icon::before{position:absolute;top:-5px}.menu-icon::after{position:absolute;top:5px}
@media(max-width:560px){.topbar{position:relative;z-index:10}.menu-toggle{display:inline-flex}.nav{display:none;position:absolute;top:56px;right:0;min-width:220px;padding:8px 16px 12px;background:var(--paper);border:1px solid #dfe3dc;box-shadow:0 14px 32px rgba(18,25,20,.14);align-items:stretch;gap:0}.nav.is-open{display:flex;flex-direction:column}.nav a{display:block;padding:10px 2px;border-bottom:1px solid #e5e8e2}.nav .lang{align-self:flex-start;padding:12px 2px 4px}.post-aside{display:block}.post-aside section+section{margin-top:18px}}