:root{--primary:#E85D75;--primary-deep:#D94A63;--accent:#F2A65A;--ink:#252833;--text:#34343C;--muted:#72727D;--bg:#FFF9F7;--soft:#F6F1F0;--line:#eadfdd;--white:#fff;--radius:22px;--shadow:0 18px 50px rgba(60,35,45,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}a:hover{color:var(--primary-deep)}button,input{font:inherit}.wrap{width:min(1160px,calc(100% - 40px));margin-inline:auto}.narrow{width:min(780px,calc(100% - 40px));margin-inline:auto}.skip{position:fixed;left:16px;top:-60px;background:#fff;padding:10px 14px;border-radius:8px;z-index:999}.skip:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,249,247,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(234,223,221,.8)}.header-inner{min-height:72px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:20px;white-space:nowrap}.brand img{width:38px;height:38px;object-fit:contain;border-radius:10px}.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.main-nav a{padding:8px 10px;border-radius:10px;font-size:14px;color:#53535d}.main-nav a.active,.main-nav a:hover{background:var(--soft);color:var(--primary-deep)}.search-open,.menu-toggle{border:1px solid var(--line);background:#fff;border-radius:12px;padding:9px 12px;cursor:pointer}.menu-toggle{display:none}.home-intro{padding:88px 0 54px;background:linear-gradient(180deg,#fff7f4 0%,var(--bg) 100%)}.center{text-align:center}.eyebrow{margin:0 0 10px;color:var(--primary-deep);font-weight:800;letter-spacing:.08em;font-size:13px}.home-intro h1,.page-hero h1{margin:0;color:var(--ink);line-height:1.17;letter-spacing:-.03em}.home-intro h1{font-size:clamp(36px,6vw,68px);max-width:980px;margin-inline:auto}.lead{font-size:18px;color:var(--muted);max-width:800px;margin:22px auto 0}.intro-actions{display:flex;justify-content:center;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 20px;font-weight:750}.btn.primary{background:var(--primary-deep);color:#fff}.btn.ghost{background:#fff;border:1px solid var(--line)}.quick-strip{border-block:1px solid var(--line);background:#fff}.text-links{list-style:none;padding:0;margin:0}.quick-strip .text-links{display:grid;grid-template-columns:repeat(4,1fr)}.quick-strip li{padding:20px;border-right:1px solid var(--line)}.quick-strip li:last-child{border-right:0}.text-links a{font-weight:750;color:var(--ink)}.text-links span{display:block;color:var(--muted);font-size:13px;margin-top:4px;line-height:1.55}.split-feature{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center;padding-block:84px}.split-feature h2,.section-head h2,.community-focus h2,.prose h2{color:var(--ink);line-height:1.28;margin:0 0 14px}.split-feature h2,.section-head h2,.community-focus h2{font-size:clamp(28px,4vw,42px)}.feature-art img{border-radius:28px;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}.check-list{padding-left:20px}.check-list li{margin:8px 0}.text-cta{color:var(--primary-deep);font-weight:800}.device-band{background:var(--soft);padding:76px 0}.section-head{max-width:780px;margin-bottom:30px}.section-head p{color:var(--muted)}.device-columns{display:grid;grid-template-columns:1fr 1fr;gap:28px}.device-columns article{background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 8px 30px rgba(70,45,55,.05)}.device-columns img{width:100%;aspect-ratio:16/9;object-fit:cover}.device-columns h3,.device-columns p,.device-columns a{margin-left:24px;margin-right:24px}.device-columns h3{font-size:24px;margin-top:22px;margin-bottom:8px;color:var(--ink)}.device-columns p{color:var(--muted)}.device-columns a{display:inline-block;color:var(--primary-deep);font-weight:800;margin-bottom:24px}.steps{padding-block:76px}.step-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.step-list li{display:grid;grid-template-columns:90px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line)}.step-list span{font-weight:900;font-size:28px;color:var(--primary)}.step-list h3{margin:0 0 5px;color:var(--ink);font-size:22px}.step-list p{margin:0;color:var(--muted)}.community-focus{background:var(--ink);color:#f8f4f2;padding:70px 0}.community-focus .narrow{width:min(1040px,calc(100% - 40px));display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:center}.community-focus img{border-radius:24px;aspect-ratio:4/3;object-fit:cover}.community-focus h2{color:#fff}.community-focus p{color:#d7d5d8}.community-focus .text-cta{color:#ffb5c2}.faq-preview{padding-block:78px}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px}.faq-list summary{font-weight:800;color:var(--ink);cursor:pointer}.faq-list p{color:var(--muted);margin:10px 0 0}.faq-list.large{margin:30px 0 60px}.info-index{background:#fff;border-top:1px solid var(--line);padding:70px 0}.index-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.index-grid a{border:1px solid var(--line);border-radius:16px;padding:18px;background:var(--bg)}.index-grid strong,.index-grid span{display:block}.index-grid strong{color:var(--ink)}.index-grid span{font-size:13px;color:var(--muted);margin-top:4px}.breadcrumb{padding-top:26px}.breadcrumb ol{display:flex;list-style:none;padding:0;margin:0;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:14px}.breadcrumb li+li:before{content:"/";margin-right:8px}.page-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:38px;align-items:center;padding:46px 0 42px;border-bottom:1px solid var(--line)}.page-hero.compact{grid-template-columns:1fr .55fr}.page-hero h1{font-size:clamp(34px,5vw,56px)}.page-hero p{color:var(--muted);font-size:17px}.page-hero img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:24px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:60px;align-items:start;padding:54px 0 80px}.prose{max-width:780px}.prose section{padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid var(--line)}.prose h2{font-size:28px}.prose p{margin:0;color:#4d4d56}.related-box{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.related-box a{padding:13px 15px;background:var(--soft);border-radius:12px;font-weight:700}.side-index{position:sticky;top:98px;border-left:1px solid var(--line);padding-left:20px}.side-index h2{font-size:16px;margin-top:0}.side-index a{display:block;padding:8px 0;color:var(--muted)}.notice{padding:18px;background:#fff3e8;border-left:4px solid var(--accent);border-radius:10px}.site-footer{background:#20222b;color:#d9d9de;padding:56px 0 24px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:32px}.site-footer h2{color:#fff;font-size:16px}.site-footer p{color:#aaaab4;max-width:420px}.site-footer a{display:block;color:#c9c9d1;margin:7px 0}.footer-bottom{margin-top:34px;padding-top:20px;border-top:1px solid #383a44;display:flex;justify-content:space-between;color:#94959f;font-size:13px}.footer-bottom a{margin:0}.search-modal{position:fixed;inset:0;z-index:100;background:rgba(20,20,27,.52);display:grid;place-items:start center;padding-top:11vh}.search-modal[hidden]{display:none!important}.search-panel{width:min(620px,calc(100% - 32px));background:#fff;border-radius:22px;padding:26px;box-shadow:var(--shadow);position:relative}.search-close{position:absolute;right:16px;top:12px;border:0;background:transparent;font-size:28px;cursor:pointer}.search-row{display:flex;gap:8px}.search-row input{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;padding:11px 13px}.search-row button{border:0;background:var(--primary-deep);color:#fff;border-radius:12px;padding:10px 16px;cursor:pointer}.search-page-form{max-width:760px;margin:36px auto}.search-page-form label{font-weight:700;display:block;margin-bottom:7px}.search-results{list-style:none;padding:0;margin:0 0 70px;display:grid;gap:12px}.search-results a{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.search-results strong,.search-results span{display:block}.search-results span{color:var(--muted);margin-top:5px}.empty-state{padding:36px;background:var(--soft);border-radius:20px;margin-bottom:70px}.backtop{position:fixed;right:18px;bottom:18px;border:0;background:var(--ink);color:#fff;border-radius:999px;padding:10px 14px;cursor:pointer;z-index:30}
@media(max-width:1024px){.main-nav{position:fixed;left:20px;right:20px;top:82px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;display:none;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.menu-toggle{display:block;margin-left:auto}.search-open{margin-left:0}.quick-strip .text-links{grid-template-columns:1fr 1fr}.quick-strip li:nth-child(2){border-right:0}.quick-strip li:nth-child(-n+2){border-bottom:1px solid var(--line)}.article-layout{grid-template-columns:1fr}.side-index{position:static;border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.wrap,.narrow{width:min(100% - 28px,1160px)}.home-intro{padding-top:60px}.intro-actions{flex-direction:column;align-items:stretch}.split-feature,.page-hero,.community-focus .narrow{grid-template-columns:1fr}.page-hero img{max-height:360px}.device-columns{grid-template-columns:1fr}.index-grid{grid-template-columns:1fr 1fr}.step-list li{grid-template-columns:54px 1fr}.related-box{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px}.community-focus .narrow{width:min(100% - 28px,1040px)}}
@media(max-width:600px){.header-inner{min-height:64px}.brand span{font-size:18px}.brand img{width:34px;height:34px}.search-open{padding:8px 10px;font-size:13px}.quick-strip .text-links{grid-template-columns:1fr}.quick-strip li{border-right:0!important;border-bottom:1px solid var(--line)}.index-grid{grid-template-columns:1fr}.page-hero{padding-top:30px}.page-hero h1{font-size:36px}.home-intro h1{font-size:42px}.search-row{flex-direction:column}.search-row button{width:100%}}
@media(max-width:375px){.wrap,.narrow{width:calc(100% - 22px)}.brand span{display:none}.home-intro h1{font-size:36px}.page-hero h1{font-size:32px}}