:root{--bg:#FFF9E6;--paper:#fff;--ink:#211A27;--body:#302B34;--muted:#625B68;--purple:#65358C;--lilac:#F1E8F7;--yellow:#F7E6A8;--line:#E7DCEB}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.75 system-ui,-apple-system,"Noto Sans CJK SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}a{color:#542578;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible{outline:3px solid #8B4DB9;outline-offset:3px;border-radius:3px}.container{max-width:1160px;margin-inline:auto;padding-inline:28px}.skip-link{position:absolute;z-index:200;top:-100px;left:14px;background:#fff;padding:10px}.skip-link:focus{top:5px}.site-header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:20}.header-inner{min-height:72px;display:flex;align-items:center;gap:25px}.brand{display:inline-flex;align-items:center;flex-shrink:0;text-decoration:none}.brand-img{display:block;height:32px;width:auto;max-width:168px;object-fit:contain}.brand-text{font-size:25px;font-weight:900;letter-spacing:-1px;color:#19171c}.brand-text span{color:var(--purple);font-size:19px;letter-spacing:0}.primary{display:flex;align-items:center;gap:clamp(12px,1.9vw,26px);margin-inline:auto}.primary a{font-size:14px;font-weight:650;text-decoration:none;color:var(--ink);padding:19px 0;border-bottom:3px solid transparent;white-space:nowrap}.primary a.active,.primary a[aria-current]{color:var(--purple);border-bottom-color:var(--purple)}.header-actions{display:flex;align-items:center;gap:18px;margin-left:auto;white-space:nowrap}.menu-toggle{padding:10px 13px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:10px;min-height:44px}.chevron{margin-left:5px}.mobile-entry{font-size:14px;font-weight:700}.menu-mobile{display:none}.all-menu{background:#fff;border-top:1px solid var(--line);box-shadow:0 12px 25px #211a2714}.all-menu[hidden]{display:none}.menu-grid{max-width:1060px;display:grid;grid-template-columns:repeat(4,minmax(210px,1fr));gap:20px;padding-top:21px;padding-bottom:26px}.menu-group h2{font-size:15px;color:var(--purple);margin:0 0 8px}.group-toggle{border:0;background:none;color:inherit;padding:0;font-weight:750}.group-toggle span{display:none}.menu-links{display:grid;gap:1px}.menu-links a{text-decoration:none;display:flex;flex-direction:column;gap:0;border-radius:8px;padding:5px 8px;color:var(--ink)}.menu-links a:hover,.menu-links a[aria-current]{background:var(--lilac)}.menu-links strong{font-size:14px;font-weight:700}.menu-links small{font-size:12px;color:var(--muted)}main{display:block}h1,h2,h3{color:var(--ink);line-height:1.35}h1{font-size:clamp(27px,3.2vw,35px);letter-spacing:-.7px}h2{font-size:clamp(20px,2.35vw,24px)}h3{font-size:18px}p{margin:0 0 1.1em}.section{margin-block:clamp(34px,5vw,64px)}.section-head{max-width:750px;margin-bottom:22px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--purple);margin:0 0 9px}.lead{font-size:17px;line-height:1.8;max-width:700px}.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:center;gap:clamp(20px,4vw,48px)}.split.reverse{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}.hero{padding:54px 0 16px}.hero h1{max-width:620px}.hero p{max-width:615px}.hero-media{text-align:center}.hero-media img{max-height:310px}.media{display:flex;justify-content:center;align-items:center;min-width:0}.media img,.article-figure img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}.media img{max-height:225px;width:auto}.media.tall img{max-height:390px}.media.small img{max-height:185px}.hero-media img{max-width:100%;width:auto;height:auto;object-fit:contain}.btn-row,.link-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.btn{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:9px 18px;background:var(--purple);color:#fff;font-weight:750;border-radius:11px;text-decoration:none}.btn.secondary{background:#19171C}.btn:hover{filter:brightness(.92)}.panel{padding:24px;background:#fff;border:1px solid var(--line);border-radius:13px}.soft{background:var(--yellow);padding:32px;border-radius:13px}.soft h2{margin-top:0}.tile-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.tile{border-top:3px solid var(--purple);padding:15px 14px 14px;background:#fff;border-radius:0 0 10px 10px;text-decoration:none;color:var(--ink)}.tile strong{display:block;font-size:18px}.tile p{font-size:14px;color:var(--body);margin:5px 0 0}.tile .number{font-size:12px;font-weight:850;color:var(--purple)}.subject-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.subject-grid a{display:block;background:#fff;padding:13px;border:1px solid var(--line);border-radius:10px;text-decoration:none;font-weight:700}.topic-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line);align-items:center}.topic-row img{max-height:195px}.story-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:20px}.story-aside{display:grid;gap:15px}.story-aside .panel{padding:18px}.story-aside img{max-height:150px}.reading-list{padding:0;list-style:none}.reading-list li{padding:13px 0;border-bottom:1px solid var(--line)}.reading-list a{font-weight:750}.reading-list p{margin:3px 0;font-size:14px}.rules-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.rules-links a{border-top:2px solid var(--purple);padding:15px 0;text-decoration:none;font-weight:750}.rules-links small{display:block;color:var(--body);font-weight:400}.article-top{padding:34px 0 16px}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:24px}.breadcrumbs a{color:var(--muted)}.article-top h1{font-size:clamp(25px,3vw,33px);margin:0 0 14px}.article-top .lead{max-width:790px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start;margin:22px 0 60px}.article-body{min-width:0;max-width:810px}.article-body section{margin:0 0 30px}.article-body section h2{margin:0 0 10px}.article-body section p{max-width:74ch;line-height:1.78}.article-figure{margin:0 0 32px;padding:18px;background:var(--lilac);border-radius:13px;text-align:center}.article-figure img{max-height:230px;width:auto;margin:auto}.article-figure.tall img{max-height:390px}.article-figure figcaption{font-size:13px;color:var(--muted);margin-top:7px}.article-aside{position:static;border-left:2px solid var(--line);padding-left:18px}.article-aside h2{font-size:17px;margin:0 0 10px}.article-aside a{display:block;padding:7px 0;font-size:14px}.related{padding:24px;background:#fff;border-radius:13px;margin:25px 0}.related h2{font-size:19px;margin-top:0}.related a{display:inline-block;margin:0 15px 10px 0}.faq-list{max-width:840px;margin:0 0 60px}.faq-item{border-bottom:1px solid var(--line);padding:16px 0}.faq-item h2{font-size:20px;margin:0 0 8px}.faq-item p{margin:0}.footer{background:#fff;border-top:1px solid var(--line);padding:42px 0 20px}.footer-head{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding-bottom:22px}.footer-head p{font-size:13px;color:var(--muted);max-width:450px;margin:0}.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;padding:25px 0}.footer-cols h2{font-size:15px}.footer-cols a{display:block;margin:7px 0;font-size:14px;color:var(--body)}.footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-top:15px;color:var(--muted);font-size:12px}.bottom-nav{display:none}
@media(max-width:1060px){.container{padding-inline:22px}.header-inner{gap:15px}.primary{gap:12px}.menu-grid{grid-template-columns:repeat(2,minmax(210px,1fr))}.header-actions{gap:9px}.brand-img{max-width:130px}}
@media(max-width:800px){.primary{display:none}.menu-mobile{display:inline}.menu-desktop{display:none}.header-inner{justify-content:space-between}.header-actions{margin-left:auto}.article-layout{grid-template-columns:minmax(0,1fr);gap:15px}.article-aside{border-left:0;border-top:1px solid var(--line);padding:18px 0}.article-aside a{display:inline-block;margin-right:12px}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.story-grid{grid-template-columns:1fr}.footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.container{padding-inline:16px}.header-inner{min-height:62px}.brand-img{height:28px;max-width:116px}.menu-grid{display:block;padding-top:9px;padding-bottom:12px}.menu-group{border-bottom:1px solid var(--line)}.menu-group h2{margin:0}.group-toggle{min-height:44px;width:100%;display:flex;justify-content:space-between;align-items:center;padding:7px 3px}.group-toggle span{display:inline}.menu-links{display:none;padding-bottom:8px}.group-toggle[aria-expanded="true"]+.menu-links{display:grid}.split,.split.reverse,.topic-row{grid-template-columns:1fr}.hero{padding-top:29px}.hero-media img{max-height:250px}.media.tall img,.article-figure.tall img{max-height:310px}.media img,.article-figure img{max-height:210px}.media.small img{max-height:185px}.hero .btn-row{margin-top:18px}.tile-grid{grid-template-columns:1fr}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.section{margin-block:34px}.panel{padding:17px}.soft{padding:19px}.rules-links{grid-template-columns:1fr}.footer{padding-bottom:calc(78px + env(safe-area-inset-bottom))}.footer-head{align-items:start;flex-direction:column}.footer-cols{gap:15px}.footer-bottom{flex-direction:column}.bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:center;left:0;right:0;bottom:0;z-index:25;height:calc(59px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);box-shadow:0 -3px 14px #20162b12}.bottom-nav a{display:flex;align-items:center;justify-content:center;min-height:44px;font-size:13px;font-weight:750;text-decoration:none;color:var(--body)}.bottom-nav a[aria-current]{color:var(--purple);text-decoration:underline;text-underline-offset:6px}.article-top{padding-top:21px}.article-layout{margin-bottom:35px}}
@media(max-width:350px){.header-actions{gap:6px}.menu-toggle{padding:8px}.mobile-entry{font-size:13px}.brand-img{max-width:103px}.subject-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}