:root{--brand:#7C3AED;--brand-soft:#C4A7E7;--ink:#24212A;--muted:#6F6878;--dark:#18151F;--bg:#F7F5FA;--sub:#EEEAF3;--accent:#E59A3A;--line:#DDD6E5;--white:#fff;--radius:24px;--shadow:0 18px 50px rgba(35,26,48,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.72}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}a:hover{color:var(--brand)}code{background:var(--sub);padding:.1rem .35rem;border-radius:6px}.container{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,250,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(124,58,237,.1)}.header-inner{width:min(1240px,calc(100% - 32px));margin:auto;min-height:72px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand img{width:38px;height:38px;object-fit:contain}.site-nav{display:flex;gap:18px;margin-left:auto}.site-nav a{font-size:14px;color:#4f4857}.search-open,.menu-toggle{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:999px;cursor:pointer}.menu-toggle{display:none}.entry-cover{padding:62px 0 40px;background:linear-gradient(180deg,#f9f7fc,#efeaf5)}.entry-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}.entry-copy h1,.narrow-intro h1,.category-header h1,.benefit-hero h1,.guide-header h1,.about-header h1,.simple-image-header h1,.article-header h1,.faq-header h1{font-size:clamp(34px,5vw,62px);line-height:1.08;letter-spacing:-.03em;margin:.2em 0}.lead{font-size:20px;color:#4f4857}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800;color:var(--brand)}.entry-actions,.action-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff!important;padding:12px 18px;border-radius:14px;border:0;font-weight:750;cursor:pointer}.button.secondary{background:#fff;color:var(--ink)!important;border:1px solid var(--line)}.entry-side{position:relative}.entry-side img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:32px;box-shadow:var(--shadow)}.side-note{position:absolute;left:-26px;bottom:24px;max-width:320px;background:var(--dark);color:#fff;padding:18px 20px;border-radius:18px}.side-note strong,.side-note span{display:block}.side-note span{color:#d8d1df;font-size:14px;margin-top:6px}.section{padding:72px 0}.section-heading{max-width:760px;margin-bottom:28px}.section-heading h2{font-size:clamp(28px,4vw,44px);line-height:1.15;margin:.2em 0}.section-heading p{color:var(--muted)}.split-index{display:grid;grid-template-columns:1.1fr .9fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:24px;overflow:hidden}.split-index a{background:#fff;padding:26px;min-height:190px}.split-index a:nth-child(2),.split-index a:nth-child(3){background:#fbfafe}.split-index span{color:var(--accent);font-weight:800}.split-index strong{display:block;font-size:22px;margin:12px 0 8px}.split-index p{color:var(--muted)}.dark-band{background:var(--dark);padding:74px 0;color:#fff}.inverse p{color:#c8c0cf}.headline-flow{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:18px}.headline-flow article{background:#241f2b;border:1px solid #342d3d;border-radius:22px;overflow:hidden}.headline-flow img{width:100%;height:180px;object-fit:cover}.headline-flow .headline-main{grid-row:span 2}.headline-flow .headline-main img{height:360px}.headline-flow article div{padding:20px}.headline-flow h3{margin:0 0 8px;font-size:22px}.headline-flow p{color:#c8c0cf;margin:0}.content-rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(270px,1fr);overflow-x:auto;gap:20px;padding-bottom:10px}.content-rail article{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden}.content-rail img{width:100%;height:175px;object-fit:cover}.content-rail article div{padding:20px}.text-link{color:var(--brand);font-weight:760}.mixed-benefit{display:grid;grid-template-columns:1.25fr .75fr;gap:30px}.benefit-feature{background:var(--dark);color:#fff;border-radius:30px;overflow:hidden}.benefit-feature img{width:100%;height:300px;object-fit:cover}.benefit-feature div{padding:30px}.benefit-notes{display:grid;gap:14px}.benefit-notes article{background:var(--sub);padding:22px;border-radius:18px}.benefit-notes h3{margin-top:0}.updates-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:34px}.update-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.update-list li{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.update-list time{color:var(--muted)}.wide-topic{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px}.wide-topic img{border-radius:16px;aspect-ratio:16/10;object-fit:cover}.text-index{display:grid;grid-template-columns:.7fr 1.3fr;gap:40px;border-top:1px solid var(--line)}.tag-links{display:flex;gap:10px;flex-wrap:wrap;align-content:flex-start}.tag-links a,.compact-links a{padding:10px 14px;background:#fff;border:1px solid var(--line);border-radius:999px}.breadcrumbs{width:min(1160px,calc(100% - 40px));margin:20px auto 0;display:flex;gap:10px;align-items:center;color:var(--muted);font-size:14px}.page-shell{padding-bottom:70px}.narrow-intro{max-width:820px;padding:64px 0 24px}.prose-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:42px}.prose-grid article h2,.prose h2,.category-copy h2,.article-body h2{font-size:28px;margin-top:42px}.topic-aside{background:var(--dark);color:#fff;padding:24px;border-radius:24px;align-self:start}.topic-aside img{border-radius:14px;margin-bottom:18px}.topic-aside a{display:block;padding:12px 0;border-bottom:1px solid #3a3441}.editor-list{display:grid;gap:18px}.editor-item{display:grid;grid-template-columns:240px 1fr;gap:24px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:22px}.editor-item img{width:100%;height:175px;object-fit:cover;border-radius:14px}.editor-item h2{margin:0 0 8px;font-size:26px}.meta{font-size:14px;color:var(--muted)}.device-guide{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}.device-visual{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}.device-visual img{border-radius:24px;height:360px;width:100%;object-fit:cover}.device-visual img:last-child{margin-top:60px;height:300px}.device-steps ol{padding-left:22px}.device-steps li{margin-bottom:18px}.two-col-copy{display:grid;grid-template-columns:1fr 1fr;gap:28px}.two-col-copy>div{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}.category-header,.benefit-hero,.guide-header,.about-header,.simple-image-header,.faq-header{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:54px 0}.category-header img,.benefit-hero img,.guide-header img,.about-header img,.simple-image-header img,.faq-header img{border-radius:28px;width:100%;height:330px;object-fit:cover}.benefit-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.benefit-grid article,.safety-list article{background:#fff;border:1px solid var(--line);padding:26px;border-radius:20px}.topic-masonry{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}.topic-block{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden}.topic-block img{width:100%;height:240px;object-fit:cover}.topic-block div{padding:24px}.topic-1{grid-row:span 2}.topic-1 img{height:470px}.timeline{padding:20px 0 40px}.timeline article{display:grid;grid-template-columns:140px 1fr;gap:30px;padding:26px 0;border-bottom:1px solid var(--line)}.timeline h2{margin:0}.guide-stack{display:grid;gap:22px}.guide-stack article{background:#fff;border:1px solid var(--line);border-left:5px solid var(--brand);padding:28px;border-radius:18px}.faq-list{display:grid;gap:12px;padding-bottom:60px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}.faq-list summary{font-weight:800;cursor:pointer}.faq-list p{color:var(--muted)}.safety-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}.inline-search{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:end;margin-top:24px}.inline-search label{grid-column:1/-1;font-weight:700}.inline-search input,.search-row input{min-width:0;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;font:inherit}.search-results{max-width:860px;padding-bottom:70px}.search-results article{padding:24px 0;border-bottom:1px solid var(--line)}.search-results article span{font-size:12px;color:var(--brand);font-weight:800}.search-results h2{margin:6px 0}.empty-state{background:#fff;padding:26px;border-radius:20px}.article-shell{max-width:900px;padding-bottom:80px}.article-header{padding:60px 0 26px}.article-figure img{width:100%;max-height:500px;object-fit:cover;border-radius:28px}.article-figure figcaption{font-size:13px;color:var(--muted);margin-top:8px}.article-body{max-width:760px;margin:40px auto;font-size:18px}.article-body p{margin:1.2em 0}.inline-related{margin-top:42px;background:var(--sub);padding:26px;border-radius:20px}.inline-related a{display:block;padding:8px 0;color:var(--brand)}.not-found{max-width:700px;padding:100px 0}.compact-links{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.compact-links h2{width:100%}.site-footer{background:var(--dark);color:#ded7e3;padding:60px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px}.footer-grid h2,.footer-grid h3{color:#fff}.footer-grid a{display:block;padding:5px 0}.footer-bottom{border-top:1px solid #332d3a;margin-top:36px;padding-top:18px;display:flex;justify-content:space-between}.to-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border:0;border-radius:50%;background:var(--accent);color:#251a0c;font-weight:900;cursor:pointer;display:none}.search-modal{position:fixed;inset:0;background:rgba(20,17,25,.68);z-index:100;display:grid;place-items:start center;padding-top:12vh}.search-modal[hidden]{display:none!important}.search-panel{position:relative;width:min(680px,calc(100% - 32px));background:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow)}.search-close{position:absolute;right:16px;top:14px;border:0;background:transparent;font-size:30px;cursor:pointer}.search-row{display:grid;grid-template-columns:1fr auto;gap:10px}.muted{color:var(--muted)}@media(max-width:1024px){.site-nav{gap:10px}.headline-flow{grid-template-columns:1fr 1fr}.headline-flow .headline-main{grid-row:auto;grid-column:1/-1}.mixed-benefit,.updates-layout,.prose-grid,.device-guide{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.topic-aside{display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px}.topic-aside img,.topic-aside h2{grid-column:1/-1}}@media(max-width:768px){.container,.breadcrumbs{width:min(100% - 28px,1160px)}.header-inner{min-height:64px}.menu-toggle{display:block;margin-left:auto}.site-nav{display:none;position:absolute;left:14px;right:14px;top:68px;background:#fff;padding:14px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column}.site-nav.is-open{display:flex}.search-open{font-size:0;padding:10px}.search-open:after{content:'搜索';font-size:14px}.entry-layout,.category-header,.benefit-hero,.guide-header,.about-header,.simple-image-header,.faq-header,.text-index,.topic-masonry{grid-template-columns:1fr}.entry-copy h1,.narrow-intro h1,.category-header h1,.benefit-hero h1,.guide-header h1,.about-header h1,.simple-image-header h1,.article-header h1,.faq-header h1{font-size:40px}.side-note{position:static;margin-top:12px}.split-index,.benefit-grid,.safety-list,.two-col-copy{grid-template-columns:1fr}.headline-flow{grid-template-columns:1fr}.headline-flow .headline-main{grid-column:auto}.editor-item{grid-template-columns:1fr}.editor-item img{height:220px}.topic-block img,.topic-1 img{height:260px}.update-list li,.timeline article{grid-template-columns:1fr;gap:4px}.footer-grid{grid-template-columns:1fr 1fr}.category-header img,.benefit-hero img,.guide-header img,.about-header img,.simple-image-header img,.faq-header img{height:250px}.inline-search{grid-template-columns:1fr}.inline-search label{grid-column:auto}}@media(max-width:600px){.entry-cover{padding-top:38px}.entry-copy h1,.narrow-intro h1,.category-header h1,.benefit-hero h1,.guide-header h1,.about-header h1,.simple-image-header h1,.article-header h1,.faq-header h1{font-size:34px}.lead{font-size:18px}.section{padding:52px 0}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px}.device-visual{grid-template-columns:1fr}.device-visual img,.device-visual img:last-child{height:250px;margin:0}.topic-aside{grid-template-columns:1fr}.topic-aside img,.topic-aside h2{grid-column:auto}.search-row{grid-template-columns:1fr}.content-rail{grid-auto-columns:84vw}}@media(max-width:375px){.header-inner{width:calc(100% - 20px);gap:8px}.brand span{font-size:15px}.container,.breadcrumbs{width:calc(100% - 22px)}.button{width:100%}.entry-actions{display:grid}.split-index a{padding:20px}.section-heading h2{font-size:30px}}