*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#FAF9F6;color:#414255;font:16px/1.8 system-ui,-apple-system,"Microsoft YaHei",sans-serif;overflow-wrap:anywhere}a{color:#5544b8;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #D65D69;outline-offset:3px}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:#25243A;line-height:1.35}h1{font-size:clamp(26px,3vw,36px)}h2{font-size:clamp(21px,2.25vw,28px)}h3{font-size:19px}.container{width:min(100% - 64px,1120px);margin-inline:auto}.skip{position:absolute;left:12px;top:-80px;background:white;padding:10px;z-index:100}.skip:focus{top:6px}.site-header{background:white;border-bottom:1px solid #E6E4EB}.header-row{display:flex;align-items:center;gap:22px;min-height:72px}.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:#25243A;font-weight:750;font-size:19px;white-space:nowrap}.logo-frame{display:inline-flex;align-items:center;justify-content:center;padding:7px 9px;background:#fff;border:1px solid #E6E4EB;border-radius:11px;box-shadow:0 1px 5px #25243A12;min-height:40px;max-width:112px}.logo-frame img{display:block;width:auto;height:auto;max-width:92px;max-height:34px;object-fit:contain;object-position:center}.primary{display:flex;gap:clamp(8px,1.3vw,22px);align-items:center;margin-inline:auto}.primary a,.quick-row a,.desktop-app{font-size:14px;color:#414255;white-space:nowrap}.primary a[aria-current=page]{color:#6756C8;text-decoration:underline;text-underline-offset:6px}.header-actions{display:flex;gap:12px;align-items:center;margin-left:auto}.icon-button{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;background:transparent;border:0;color:#25243A;border-radius:9px}.icon-button svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}.quick-row{display:flex;align-items:center;gap:27px;min-height:40px;border-top:1px solid #F2EFFB}.quick-row a{color:#66687B}.mobile-menu{display:none}.section{margin-block:64px}.section-head{margin-bottom:22px}.eyebrow{font-size:12px;letter-spacing:.07em;text-transform:uppercase;font-weight:750;color:#6756C8;display:block;margin-bottom:12px}.home-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:center;gap:30px;margin-top:34px}.hero-copy p{max-width:590px}.actions,.related-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.button{display:inline-flex;align-items:center;justify-content:center;background:#6756C8;color:#fff;border-radius:11px;padding:10px 18px;min-height:44px;font-weight:650}.button:hover{background:#4d3ba8;color:white}.button.subtle{background:#F2EFFB;color:#4435a1}.media{display:flex;align-items:center;justify-content:center;min-width:0;width:100%;padding:12px;background:#F2EFFB;border:1px solid #E6E4EB;border-radius:16px}.media img{display:block;max-width:100%;width:auto;height:auto;max-height:300px;object-fit:contain;object-position:center}.banner img{max-height:320px}.wide-media{margin-bottom:22px}.wide-media img,.hero-media img{max-height:260px}.app-media img{max-height:300px}.icon-media{width:max-content;max-width:100%;padding:7px;margin-bottom:14px;background:white}.icon-media img{max-width:64px;max-height:64px}.cards{display:grid;gap:18px}.cards.four{grid-template-columns:repeat(4,minmax(0,1fr))}.cards.three,.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}.panel{min-width:0;border:1px solid #E6E4EB;background:#fff;border-radius:15px;padding:22px}.panel p:last-child{margin-bottom:0}.panel a{display:inline-block;font-weight:650;margin-top:8px}.panel small{display:block;font-size:13px;color:#66687B}.tint{background:#F2EFFB;border-radius:18px;padding:27px}.tint.mint{background:#EAF6F4}.tint.peach{background:#FFF1E4}.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:30px;align-items:center}.mini-notes{display:grid;gap:9px;margin:18px 0}.mini-notes span{background:#fff;border:1px solid #E6E4EB;border-radius:10px;padding:9px 12px;font-size:14px}.feature .media{margin-bottom:20px}.home-close{margin-top:24px}.page-shell{padding-top:24px;padding-bottom:60px}.crumb{font-size:13px;color:#66687B;margin-bottom:30px}.page-intro{max-width:760px;margin-bottom:27px}.page-intro p{font-size:16px}.hero-media{margin-bottom:27px}.content-layout{max-width:900px}.essay-grid,.steps,.bookshelf,.character-rows,.archive,.editor-grid{display:grid;gap:20px}.essay-grid .panel,.steps .panel,.bookshelf .panel,.character-rows .panel,.archive .panel,.editor-grid .panel{padding:25px}.topic-grid{display:grid;gap:20px}.related{margin-top:48px;border-top:1px solid #E6E4EB;padding-top:24px}.related a{background:#F2EFFB;border-radius:10px;padding:9px 13px}.notice{background:#FFF1E4;padding:16px;border-radius:12px}.faq-list{display:grid;gap:12px;max-width:850px}.faq-item{background:#fff;border:1px solid #E6E4EB;border-radius:12px;padding:14px 19px}.faq-item summary{cursor:pointer;font-weight:700;color:#25243A}.faq-item p{margin:14px 0 0}.site-footer{background:#25243A;color:#e8e7f3;padding:44px 0 24px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:28px;border-bottom:1px solid #ffffff30}.footer-brand{color:white}.footer-brand small{display:block;font-size:11px;font-weight:400;letter-spacing:.1em}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:28px}.footer-grid nav{display:flex;flex-direction:column;gap:8px}.footer-grid h2{font-size:16px;color:white;margin:0 0 6px}.footer-grid a{color:#e1dff3;font-size:14px}.copyright{font-size:12px;margin:34px 0 0;color:#e1dff3}.bottom-nav{display:none}.search-layer[hidden]{display:none}.search-layer{position:fixed;inset:0;z-index:50;display:grid;place-items:start center;padding:8vh 16px 16px}.search-backdrop{position:absolute;inset:0;background:#25243Ab3}.search-panel{position:relative;background:#fff;width:min(100%,560px);max-height:82vh;overflow:auto;border-radius:16px;padding:24px;box-shadow:0 12px 35px #25243A30}.search-title{display:flex;align-items:center;justify-content:space-between;gap:12px}.search-title h2{margin:0 0 16px}.search-panel label{display:block;font-size:14px;margin-bottom:8px}.search-panel input{width:100%;min-height:46px;border:1px solid #9997ad;border-radius:8px;padding:8px 12px}.search-hint{font-size:13px;color:#66687B;margin:12px 0}#search-results{display:grid;gap:8px}#search-results a{padding:10px 12px;background:#F2EFFB;border-radius:8px;min-height:44px}#search-results small{display:block;color:#66687B;font-size:12px}@media(max-width:1024px){.primary{gap:9px}.container{width:min(100% - 48px,1120px)}.cards.four{grid-template-columns:repeat(2,minmax(0,1fr))}.cards.three,.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-row{gap:15px}}@media(max-width:850px){.primary,.quick-row,.desktop-app{display:none}.header-row{min-height:58px}.mobile-menu{display:block}.mobile-menu summary{list-style:none;display:flex;align-items:center;justify-content:center;min-width:54px;min-height:44px;color:#25243A;font-size:14px;font-weight:700;cursor:pointer}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu-body{position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid #E6E4EB;border-bottom:1px solid #E6E4EB;box-shadow:0 10px 20px #25243A20;padding:18px max(16px,calc((100vw - 1120px)/2));z-index:20;max-height:65vh;overflow:auto}.site-header{position:relative}.menu-top{display:flex;align-items:center;justify-content:space-between}.menu-top button{min-height:44px;background:#F2EFFB;border:0;border-radius:8px;padding:6px 12px}.menu-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.menu-groups section{display:grid;gap:4px}.menu-groups h2{font-size:15px;margin:6px 0}.menu-groups a{display:block;padding:6px 0;font-size:14px;color:#414255}.home-hero{grid-template-columns:1fr}.split{grid-template-columns:1fr}.section{margin-block:42px}.bottom-nav{position:fixed;z-index:30;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));min-height:58px;padding-bottom:env(safe-area-inset-bottom);background:white;border-top:1px solid #E6E4EB}.bottom-nav a{min-height:56px;display:flex;align-items:center;justify-content:center;font-size:13px;color:#414255}.site-footer{padding-bottom:calc(90px + env(safe-area-inset-bottom))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.banner img{max-height:240px}.wide-media img,.hero-media img{max-height:210px}}@media(max-width:480px){body{font-size:15px}.container{width:calc(100% - 32px)}.brand{font-size:17px;gap:7px}.logo-frame{padding:6px;max-width:92px}.logo-frame img{max-width:73px;max-height:30px}.header-row{gap:4px}.header-actions{gap:1px}.cards.four,.cards.three,.cards.two,.topic-grid{grid-template-columns:1fr}.section{margin-block:36px}.panel{padding:17px}.tint{padding:17px}.footer-top{align-items:flex-start;flex-direction:column}.footer-grid{gap:22px}.page-shell{padding-top:18px}.menu-groups{gap:8px}.menu-groups a{font-size:13px}.search-panel{padding:17px}}