:root{--primary:#6C4FF8;--secondary:#9B8AFB;--deep:#1E1B2E;--bg:#F7F6FB;--soft:#EEEAF8;--text:#252331;--muted:#716E7E;--accent:#F06A8A;--white:#fff;--line:#ddd8ec;--shadow:0 18px 45px rgba(45,35,88,.10);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.78}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}.narrow{width:min(840px,calc(100% - 40px))}.skip{position:absolute;left:16px;top:-60px;background:var(--deep);color:#fff;padding:10px 14px;border-radius:10px;z-index:99}.skip:focus{top:16px}.site-header{position:sticky;top:0;z-index:30;background:rgba(247,246,251,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(108,79,248,.10)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:24px}.brand{display:flex;align-items:center;gap:12px}.brand img{width:42px;height:42px;object-fit:contain}.brand span{display:grid;line-height:1.2}.brand strong{font-size:18px}.brand small{font-size:12px;color:var(--muted);margin-top:4px}.site-nav{display:flex;align-items:center;gap:6px}.site-nav a{padding:10px 14px;border-radius:12px;color:var(--muted);font-weight:650}.site-nav a:hover,.site-nav a[aria-current="page"]{background:var(--soft);color:var(--deep)}.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:9px 12px;font:inherit}.hero{padding:70px 0 58px;background:linear-gradient(180deg,#fbfaff 0%,#f3f0fb 100%)}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:56px}.eyebrow{margin:0 0 10px;color:var(--primary);font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase}.hero h1,.page-hero h1,.simple-head h1{font-size:clamp(38px,5vw,68px);line-height:1.08;letter-spacing:-.035em;margin:0 0 22px;color:var(--deep)}.lead,.page-hero p,.simple-head p{font-size:18px;color:var(--muted);max-width:760px}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border:1px solid var(--line);border-radius:14px;background:#fff;font-weight:750}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.hero-media{margin:0;position:relative}.hero-media img,.page-hero img{width:100%;border-radius:28px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}.quick-paths{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:30px}.topic-link{display:grid;gap:4px;padding:15px 16px;border:1px solid var(--line);background:rgba(255,255,255,.7);border-radius:16px}.topic-link span{font-size:13px;color:var(--muted)}.section{padding:74px 0}.section.tonal,.tonal{background:var(--soft)}.section-head{max-width:760px;margin-bottom:30px}.section-head h2,.article-section h2,.fact-list h2,.device-guide-grid h2,.topic-articles h2{font-size:clamp(26px,3.5vw,42px);line-height:1.2;margin:0 0 14px;color:var(--deep)}.section-head p{color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.content-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 28px rgba(45,35,88,.06)}.content-card img{aspect-ratio:16/10;object-fit:cover}.card-body{padding:22px}.card-body h3{font-size:22px;line-height:1.3;margin:0 0 10px}.card-body p{color:var(--muted)}.text-link{color:var(--primary);font-weight:800}.split{display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center}.feature-image{border-radius:24px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}.check-list{padding-left:22px;color:var(--muted)}.check-list li{margin:9px 0}.device-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.device-strip article{background:#fff;padding:16px;border-radius:20px;border:1px solid var(--line)}.device-strip img{border-radius:14px;aspect-ratio:16/10;object-fit:cover}.device-strip h3{margin:15px 0 6px}.device-strip p{color:var(--muted);margin-top:0}.center{text-align:center;margin-top:26px}.topic-row{display:flex;flex-wrap:wrap;gap:12px}.topic-row a{padding:12px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:700}.page-main{padding:34px 0 80px}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 28px;list-style:none;font-size:13px;color:var(--muted)}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#aaa}.page-hero{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;padding:36px 0 48px;border-bottom:1px solid var(--line)}.page-hero.compact h1{font-size:clamp(36px,4.5vw,58px)}.article-section{padding:42px 0;border-bottom:1px solid var(--line)}.article-section.soft{margin:24px -24px 0;padding:38px 24px;background:var(--soft);border-radius:24px;border-bottom:0}.article-section p{font-size:17px;color:#484454}.inline-media{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.inline-media img{border-radius:16px;aspect-ratio:16/10;object-fit:cover}.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.fact-list{display:grid;gap:18px;padding:36px 0}.fact-list article{background:#fff;border:1px solid var(--line);padding:28px;border-radius:22px}.fact-list h2{font-size:28px}.fact-list p{margin-bottom:0;color:var(--muted)}.steps{padding-left:22px}.steps li{margin:12px 0;color:#484454}.device-guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:38px 0}.device-guide-grid article{position:relative;background:#fff;border:1px solid var(--line);padding:28px;border-radius:22px}.device-guide-grid .num{display:inline-block;color:var(--accent);font-weight:900;margin-bottom:16px}.device-guide-grid h2{font-size:26px}.device-guide-grid p{color:var(--muted)}.topic-articles{display:grid;gap:20px;padding:38px 0}.topic-articles article{display:grid;grid-template-columns:1fr minmax(0,320px);gap:28px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;align-items:center}.topic-articles article:not(:has(img)){grid-template-columns:1fr}.topic-articles img{border-radius:18px;aspect-ratio:16/10;object-fit:cover}.simple-head{padding:28px 0 20px}.faq-list{display:grid;gap:12px;padding:20px 0 60px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px}.faq-list summary{cursor:pointer;font-weight:800}.faq-list p{color:var(--muted)}.not-found{padding:100px 0}.site-footer{background:var(--deep);color:#fff;padding:44px 0}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:start}.site-footer p{color:#c9c2dc}.site-footer nav{display:flex;flex-wrap:wrap;gap:14px}.site-footer nav a{color:#ede9ff}.copyright{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;margin-bottom:0}@media(max-width:900px){.hero-grid,.page-hero,.split{grid-template-columns:1fr}.hero-media{max-width:700px}.card-grid,.device-strip{grid-template-columns:1fr 1fr}.link-grid{grid-template-columns:1fr}.topic-articles article{grid-template-columns:1fr}.page-hero img{max-width:620px}.footer-grid{grid-template-columns:1fr}}@media(max-width:720px){.shell,.narrow{width:min(100% - 28px,1180px)}.menu-btn{display:block}.site-nav{display:none;position:absolute;left:14px;right:14px;top:70px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a{padding:12px}.hero{padding-top:42px}.hero h1,.page-hero h1,.simple-head h1{font-size:38px}.card-grid,.device-strip,.device-guide-grid,.inline-media,.quick-paths{grid-template-columns:1fr}.section{padding:54px 0}.page-main{padding-top:22px}.article-section.soft{margin-inline:0}.footer-grid{display:block}.site-footer nav{margin-top:20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.guide-jumps{display:flex;flex-wrap:wrap;gap:10px;padding:24px 0 8px;position:sticky;top:76px;z-index:10;background:var(--bg)}
.guide-jumps a{padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:750;color:var(--deep)}
.guide-section{padding:48px 0;border-bottom:1px solid var(--line);scroll-margin-top:140px}
.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.guide-list article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}
.guide-list h3{font-size:21px;line-height:1.35;margin:0 0 10px;color:var(--deep)}
.guide-list p{margin:0;color:#514c60}
@media(max-width:760px){.guide-jumps{position:static}.guide-list{grid-template-columns:1fr}.guide-section{padding:36px 0}.guide-list article{padding:20px}}
.deep-guides{padding:54px 0}
.deep-guide{padding:30px 0;border-top:1px solid var(--line)}
.deep-guide:first-of-type{border-top:0}
.deep-guide h3{font-size:25px;line-height:1.35;margin:0 0 14px;color:var(--deep)}
.deep-guide p{font-size:17px;color:#4d4858;margin:0 0 14px}
.deep-guide p:last-child{margin-bottom:0}
