:root{--bg:#FFF8F8;--paper:#fff;--soft:#FBE9EC;--text:#351C23;--body:#4B3037;--muted:#76545F;--accent:#C9365B;--footer:#321C24;--line:#EDD8DE}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;display:block;object-fit:contain;object-position:center}.shell{width:min(1140px,calc(100% - 40px));margin-inline:auto}.site-header{background:var(--paper);border-bottom:1px solid var(--line)}.brand-bar{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);font-weight:750}.brand-logo{max-width:160px;max-height:42px;width:auto;height:auto}.brand-fallback{font-size:22px}.brand-en{letter-spacing:.13em;font-size:13px}.brand-actions{display:flex;align-items:center;gap:18px}.desktop-note{color:var(--muted);font-size:14px}.menu-toggle,.more-toggle{min-height:44px;border:1px solid var(--line);background:transparent;color:var(--text);border-radius:8px;padding:0 14px;font:inherit;cursor:pointer}.menu-toggle{display:none}.topic-nav{min-height:48px;display:flex;align-items:center;gap:12px;border-top:1px solid var(--line)}.topic-links{display:flex;gap:22px;flex:1;align-items:center}.topic-links a{color:var(--text);padding:12px 0 10px;border-bottom:2px solid transparent;white-space:nowrap}.topic-links a.active{font-weight:700;border-bottom-color:var(--accent);color:var(--accent)}.mobile-quick{display:none}.column-index{padding:18px 0 24px;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px;border-top:1px solid var(--line)}.column-index[hidden]{display:none}.column-index h2{font-size:15px;margin:0 0 8px;color:var(--text)}.column-index a{display:block;color:var(--body);padding:4px 0}.locator{height:40px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.locator div{display:flex;gap:8px;align-items:center}.locator a{color:var(--muted)}main{padding:0 0 72px}.hero,.page-intro{padding:42px 0 14px}.hero h1,.page-intro h1{font-size:clamp(28px,3vw,38px);line-height:1.22;color:var(--text);margin:0 0 14px}.lead{max-width:780px;font-size:17px;margin:0;color:var(--body)}.eyebrow{font-size:13px;letter-spacing:.08em;color:var(--accent);font-weight:700;margin-bottom:8px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.button{min-height:44px;display:inline-flex;align-items:center;padding:0 16px;border:1px solid var(--accent);border-radius:8px}.button.alt{border-color:var(--line);color:var(--text)}.section{margin-top:50px}.section h2,.article h2,.related h2{font-size:clamp(21px,2.2vw,27px);line-height:1.35;color:var(--text);margin:0 0 16px}.section h3,.article h3{font-size:19px;color:var(--text);margin:0 0 8px}.media-frame{display:flex;justify-content:center;background:var(--paper);padding:12px;border:1px solid var(--line);border-radius:10px}.banner-image{max-height:320px;width:auto}.main-image{max-width:680px;max-height:400px;width:auto}.pair-image{max-height:220px;width:auto}.side-image{max-height:170px;width:auto}.app-image{max-width:240px;max-height:360px;width:auto}.icon-image{max-width:44px;max-height:44px;width:auto}.caption{margin-top:14px;color:var(--muted);font-size:14px}.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:28px;align-items:start}.split.reverse{grid-template-columns:minmax(0,5fr) minmax(0,4fr)}.stack{display:grid;gap:18px}.soft{background:var(--soft);padding:26px;border-radius:10px}.text-columns{columns:2;column-gap:34px}.text-columns>*{break-inside:avoid}.index-list{border-top:1px solid var(--line)}.index-row{display:grid;grid-template-columns:70px 1fr auto;gap:18px;padding:17px 0;border-bottom:1px solid var(--line);align-items:start}.index-row strong{color:var(--text)}.number{color:var(--accent);font-weight:750}.theme-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}.theme-item{padding:18px 0;border-top:1px solid var(--line)}.observations{display:grid;gap:18px}.observation{padding:18px 0;border-top:1px solid var(--line)}.article{width:min(760px,calc(100% - 40px));margin:0 auto}.article section{margin-top:42px}.article p{margin:0 0 16px}.article ul{padding-left:1.2em}.related{margin-top:54px;padding-top:24px;border-top:1px solid var(--line)}.related-list{display:flex;flex-wrap:wrap;gap:10px}.related-list a{border:1px solid var(--line);padding:10px 13px;border-radius:8px}.qa{padding:22px 0;border-top:1px solid var(--line)}.qa h2{font-size:19px;margin-bottom:8px}.site-footer{background:var(--footer);color:#f7e9ed;padding:44px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:34px}.site-footer h2{font-size:15px;margin:0 0 10px;color:#fff}.site-footer a{display:block;color:#f5d7df;padding:3px 0}.footer-brand-link{color:#fff!important}.footer-brand p{max-width:340px;color:#ead4da}.footer-note{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:#dec4cb}.site-footer .brand-logo{filter:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
@media(max-width:900px){.shell{width:min(100% - 48px,1140px)}.desktop-note,.topic-nav{display:none}.menu-toggle{display:inline-block}.mobile-quick{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.mobile-quick a{text-align:center;color:var(--text);padding:11px 6px;min-height:44px}.column-index{grid-template-columns:1fr 1fr}.split,.split.reverse,.theme-grid{grid-template-columns:1fr}.text-columns{columns:1}.pair-image{max-height:200px}.locator>span{display:none}.footer-grid{grid-template-columns:1fr 1fr}.index-row{grid-template-columns:56px 1fr}.index-row>a{grid-column:2}.media-frame{width:100%}.caption{margin-top:14px}.split .media-frame,.split.reverse .media-frame{order:0}.split>div,.split.reverse>div{min-width:0}}
@media(max-width:640px){.shell{width:calc(100% - 32px)}.brand-bar{min-height:68px}.brand-logo{max-width:130px;max-height:36px}.brand-en{font-size:12px}.hero,.page-intro{padding-top:32px}.lead{font-size:16px}.section{margin-top:34px}.soft{padding:20px}.footer-grid{grid-template-columns:1fr}.article{width:calc(100% - 32px)}.main-image{max-height:300px}.banner-image{max-height:220px}.app-image{max-width:200px}.icon-image{max-width:32px;max-height:32px}.index-row{display:block}.index-row .number{display:block;margin-bottom:6px}.related-list{display:grid}.locator{font-size:12px;overflow:hidden}.locator strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}
@media(max-width:420px){.column-index{grid-template-columns:1fr}.brand-actions>a{display:none}.brand-en{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}