:root{--paper:#FFF8F8;--white:#fff;--blush:#FBE9EC;--ink:#351C23;--body:#4B3037;--muted:#76545F;--pink:#C9365B;--deep:#321C24;--line:#EDD8DE}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font:16px/1.82 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:var(--pink);text-underline-offset:4px}a:hover{color:#8d2040}a:focus-visible,button:focus-visible{outline:3px solid #bf4264;outline-offset:3px}button{font:inherit;cursor:pointer}img{max-width:100%;height:auto;display:block;object-fit:contain;object-position:center}.wrap{width:min(1160px,calc(100% - 40px));margin-inline:auto}.skip{position:absolute;top:-100px;left:10px;z-index:5;background:#fff;padding:8px}.skip:focus{top:10px}.site-header{background:#fff;border-bottom:1px solid var(--line)}.masthead{min-height:84px;display:flex;gap:22px;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:13px;flex-shrink:0;text-decoration:none;color:var(--ink)}.brand-type{display:flex;flex-direction:column;line-height:1.2;gap:3px}.brand-type strong{font-size:23px;letter-spacing:.08em}.brand-type small{font-size:11px;letter-spacing:.3em;color:var(--muted)}.masthead-right{display:flex;align-items:center;gap:28px;color:var(--muted);font-size:14px}.nav-zone{position:relative}.main-nav{min-height:58px;display:flex;align-items:center;gap:clamp(10px,2vw,26px);border-top:1px solid var(--line);white-space:nowrap}.main-nav>a{color:var(--ink);font-size:14px;text-decoration:none;border-bottom:2px solid transparent;padding:15px 0}.main-nav>a[aria-current],.main-nav>a:hover{border-color:var(--pink);color:var(--pink)}.menu-control{background:transparent;border:1px solid var(--line);border-radius:7px;padding:8px 12px;color:var(--ink);min-height:44px}.menu-control:hover{border-color:var(--pink)}.desktop-toggle{margin-left:auto}.mobile-toggle,.mobile-quick{display:none}.category-panel{padding:24px 0 30px;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px}.category-panel[hidden]{display:none}.category-group h2{font-size:15px;color:var(--ink);margin:0 0 10px}.category-links{display:grid;grid-template-columns:1fr 1fr;gap:3px 12px}.category-links a{font-size:13px;padding:5px 0;text-decoration:none}.category-links a[aria-current]{font-weight:700;color:var(--ink)}.main-content{padding-top:32px;padding-bottom:80px;min-height:60vh}.breadcrumbs{font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:24px}.breadcrumbs a{color:var(--muted)}h1,h2,h3{color:var(--ink);line-height:1.36;letter-spacing:.015em}h1{font-size:clamp(28px,3vw,38px);margin:10px 0 20px}h2{font-size:clamp(21px,2.2vw,27px);margin:0 0 18px}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 17px}.lead{font-size:17px;color:var(--muted);max-width:760px}.eyebrow{font-size:12px;font-weight:700;color:var(--pink);letter-spacing:.16em}.section{padding-block:45px;border-top:1px solid var(--line)}.section:first-of-type{border-top:0}.hero-intro{padding:6px 0 35px}.hero-intro .lead{max-width:820px}.text-link-row{display:flex;gap:24px;flex-wrap:wrap;margin:18px 0}.photo{margin:16px auto 19px;display:flex;justify-content:center;align-items:center;max-width:100%;min-width:0}.photo img{width:auto;height:auto;max-width:100%;object-fit:contain;object-position:center}.photo-banner img{max-height:320px}.photo-feature img{max-width:680px;max-height:400px}.photo-pair img{max-height:220px}.photo-side img{max-height:170px}.photo-app img{max-width:240px;max-height:360px}.photo-icon img{max-width:44px;max-height:44px}.photo-logo{margin:0}.photo-logo img{max-width:160px;max-height:42px}.photo-cover img{max-width:680px;max-height:400px}.caption{font-size:13px;color:var(--muted);text-align:center;margin-top:-5px}.split{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,4fr);gap:32px;align-items:center}.split.reverse{grid-template-columns:minmax(0,4fr) minmax(0,6fr)}.split>*{min-width:0}.split .photo{margin:0 auto}.split .photo img{max-height:300px}.split.reverse .copy{order:1}.split.reverse .photo{order:2}.index-three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.index-three article{border-top:2px solid var(--line);padding-top:14px}.index-three p{font-size:15px}.two-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.two-cols>*{min-width:0}.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px;row-gap:10px}.topic-list article{border-top:1px solid var(--line);padding:17px 0}.text-index{list-style:none;padding:0;margin:0}.text-index li{padding:13px 0;border-bottom:1px solid var(--line)}.text-index a{font-weight:600}.article-page{max-width:100%}.article-intro{max-width:760px;margin-bottom:32px}.reading-column{max-width:760px}.article-section{margin:0 0 38px;padding:0 0 24px;border-bottom:1px solid var(--line)}.article-section p{margin-bottom:15px}.article-section p::selection{background:#f6c6d3}.article-main-image{margin:18px auto 36px}.article-related{max-width:760px;margin-top:50px;border-top:2px solid var(--pink);padding-top:22px}.article-related nav{display:flex;gap:12px 25px;flex-wrap:wrap}.article-related nav a{min-height:44px;display:inline-flex;align-items:center}.faq-list{max-width:780px}.faq-item{padding:22px 0;border-bottom:1px solid var(--line)}.faq-item h2{font-size:20px;margin-bottom:9px}.faq-item p{margin:0}.site-footer{background:var(--deep);color:#eadce1;padding:44px 0 24px}.footer-inner{display:grid;grid-template-columns:1.1fr 2fr;gap:25px 65px}.foot-brand .brand-type strong,.foot-brand .brand-type small{color:#fff}.footer-brand p{max-width:300px;margin-top:20px;font-size:14px;color:#d9c0c9}.footer-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.footer-columns h2{font-size:15px;color:#fff;margin:4px 0 14px}.footer-columns nav{display:flex;flex-direction:column;align-items:flex-start;gap:4px}.site-footer a{color:#e8d2da;text-decoration:none;font-size:13px;min-height:30px}.site-footer a:hover{text-decoration:underline;color:#fff}.footer-bottom{grid-column:1/-1;border-top:1px solid #624450;margin-top:20px;padding-top:18px;display:flex;justify-content:space-between;gap:24px;font-size:12px}.footer-bottom p{margin:0}.footer-bottom a{white-space:nowrap}.app-pair{display:flex;align-items:center;justify-content:flex-start;gap:60px;flex-wrap:wrap}.app-pair .photo{margin:0}.app-pair .photo-app{order:1}.app-pair .app-info{order:2}.app-icon-wrap{margin:22px 0 0;display:flex;align-items:center;gap:12px}.app-icon-wrap .photo{margin:0}.quiet-note{color:var(--muted);font-size:14px}.feature-callout{background:var(--blush);padding:23px 26px;border-radius:9px}.feature-callout p:last-child{margin-bottom:0}
@media(max-width:900px){.wrap{width:calc(100% - 48px)}.main-nav{gap:10px}.main-nav>a{font-size:12px}.split,.split.reverse{grid-template-columns:1fr;gap:18px}.split.reverse .photo{order:1}.split.reverse .copy{order:2}.index-three{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.footer-brand p{max-width:580px}}
@media(max-width:640px){body{font-size:15.5px}.wrap{width:calc(100% - 32px)}.masthead{min-height:74px;gap:10px}.brand{gap:8px;min-width:0}.brand-type strong{font-size:19px}.brand-type small{font-size:10px}.photo-logo img{max-width:100px;max-height:34px}.masthead-right,.main-nav{display:none}.mobile-toggle{display:block;margin-left:auto;flex-shrink:0;padding:6px 8px;font-size:13px}.mobile-quick{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.mobile-quick a{display:flex;align-items:center;justify-content:center;min-height:46px;text-decoration:none;color:var(--ink)}.mobile-quick a+a{border-left:1px solid var(--line)}.category-panel{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px}.category-links{grid-template-columns:1fr}.category-links a{min-height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line)}.main-content{padding-top:22px;padding-bottom:52px}.section{padding-block:30px}.two-cols,.topic-list{grid-template-columns:1fr;gap:16px}.topic-list article{padding:12px 0}.lead{font-size:16px}.photo-banner img{max-height:220px}.photo-feature img,.photo-cover img{max-height:300px}.photo-pair img,.split .photo img{max-height:200px}.photo-app img{max-width:200px}.footer-columns{grid-template-columns:1fr 1fr;row-gap:26px}.footer-bottom{flex-direction:column;gap:12px}.app-pair{gap:24px}.article-related nav{display:grid;grid-template-columns:1fr 1fr}.article-section{margin-bottom:30px}}
@media(max-width:360px){.category-panel{grid-template-columns:1fr}.brand-type strong{font-size:17px}.mobile-toggle{font-size:12px}.footer-columns{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}