:root{
    --purple:#7C5C8E;
    --purple-soft:#B89ABF;
    --ink:#25212A;
    --text:#302C33;
    --muted:#726B76;
    --cream:#F8F5F3;
    --lavender:#EEE8EF;
    --amber:#D58A45;
    --white:#fff;
    --line:rgba(37,33,42,.12);
    --shadow:0 18px 50px rgba(37,33,42,.09);
    --radius:22px;
    --max:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.narrow{max-width:820px}.narrow-wide{max-width:1040px}.skip-link{position:fixed;left:12px;top:12px;z-index:1000;background:var(--ink);color:#fff;padding:8px 12px;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:100;background:rgba(248,245,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-inner{width:min(1280px,calc(100% - 40px));margin:auto;min-height:74px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;margin-right:auto}.brand img{width:42px;height:42px;object-fit:contain}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand strong{font-size:18px}.brand small{color:var(--muted);font-size:11px;margin-top:5px}.primary-nav{display:flex;gap:20px;font-size:14px}.primary-nav a{padding:8px 2px;position:relative}.primary-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--purple);transition:.2s}.primary-nav a:hover:after{right:0}.search-open,.menu-toggle{border:1px solid var(--line);background:transparent;border-radius:999px;padding:9px 14px;color:var(--text)}.menu-toggle{display:none}.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--purple);font-weight:700;margin:0 0 10px}.lead{font-size:19px;color:#514b55;max-width:760px}.button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--purple);color:#fff;padding:12px 20px;font-weight:700}.button:hover{filter:brightness(.95)}.button-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}.button-light{background:#fff;color:var(--ink)}.text-link{color:var(--purple);text-decoration:underline;text-underline-offset:4px}.text-link.strong{font-weight:700}.action-row{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:26px}.home-cover{padding:62px 0 42px}.cover-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(380px,.95fr);gap:56px;align-items:center}.cover-copy h1{font-size:clamp(40px,5vw,70px);line-height:1.08;letter-spacing:-.04em;margin:8px 0 22px;max-width:760px}.cover-visual{margin:0;position:relative}.cover-visual img{width:100%;aspect-ratio:1.18/1;object-fit:cover;border-radius:36px 36px 120px 36px;box-shadow:var(--shadow)}.cover-visual figcaption{position:absolute;left:-28px;bottom:22px;width:260px;background:var(--ink);color:#fff;padding:16px 18px;border-radius:16px;font-size:13px}.section{padding:72px 0}.section-heading{margin-bottom:30px;max-width:820px}.section-heading h2,.feature-copy h2,.dark-grid h2,.simple-intro h1,.page-intro h1{font-size:clamp(30px,4vw,48px);line-height:1.16;letter-spacing:-.025em;margin:6px 0 16px}.section-heading p{color:var(--muted)}.split-heading{max-width:none;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:end}.split-heading>p{margin:0 0 8px}.route-index{border-top:1px solid var(--line)}.route-index a{display:grid;grid-template-columns:70px 260px 1fr;gap:22px;padding:21px 0;border-bottom:1px solid var(--line);align-items:center}.route-index span{color:var(--purple);font-weight:700}.route-index strong{font-size:18px}.route-index small{font-size:14px;color:var(--muted)}.route-index a:hover strong{color:var(--purple)}.tint-band{background:var(--lavender)}.editorial-list{display:flex;flex-direction:column}.story-row{display:grid;grid-template-columns:260px 1fr;gap:28px;padding:26px 0;border-top:1px solid rgba(37,33,42,.14)}.story-row:last-child{border-bottom:1px solid rgba(37,33,42,.14)}.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:18px}.story-copy h3{font-size:23px;line-height:1.35;margin:5px 0 8px}.story-copy h3 a:hover{color:var(--purple)}.story-copy p{margin:0 0 8px;color:var(--muted)}.story-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--purple);font-weight:700;font-size:12px}.section-link{display:inline-block;margin-top:24px;color:var(--purple);font-weight:700}.feature-split{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}.feature-image img{aspect-ratio:4/5;object-fit:cover;border-radius:120px 30px 30px 30px}.feature-copy p{color:var(--muted)}.compact-links{display:flex;flex-direction:column;border-top:1px solid var(--line);margin:26px 0}.compact-links a{display:grid;grid-template-columns:240px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}.compact-links span{color:var(--muted);font-size:14px}.masonry-text{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.note-card{border:1px solid var(--line);border-radius:18px;padding:22px;background:rgba(255,255,255,.38)}.note-card-wide{grid-column:span 2}.note-card h3{font-size:22px;line-height:1.4;margin:8px 0}.note-card p{color:var(--muted)}.dark-band{background:var(--ink);color:#f8f5f3}.dark-band .eyebrow{color:#d9bfdf}.dark-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}.dark-grid p{color:#c9c3cb}.dark-grid img{border-radius:30px;aspect-ratio:16/10;object-fit:cover}.alias-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.alias-strip>div{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.alias-strip strong{color:var(--purple)}.alias-strip p{font-size:14px;color:var(--muted);margin-bottom:0}.soft-band{background:#f1ecef}.aux-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:28px}.aux-main{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:center;background:#fff;border-radius:24px;padding:24px}.aux-main img{border-radius:18px;aspect-ratio:4/3;object-fit:cover}.aux-side{background:var(--purple);color:#fff;border-radius:24px;padding:30px}.aux-side .eyebrow,.aux-side .text-link{color:#f4dff8}.aux-side h3{font-size:27px;margin:8px 0}.faq-list details{border-top:1px solid var(--line);padding:18px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;font-weight:700;font-size:17px}.faq-list details p{color:var(--muted);max-width:860px}.site-footer{background:#211d25;color:#ded9e0;padding:56px 0 24px;margin-top:78px}.footer-grid{width:min(var(--max),calc(100% - 48px));margin:auto;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}.footer-grid h2{font-size:14px;color:#fff}.footer-grid a{display:block;color:#c9c1cd;font-size:14px;margin:8px 0}.footer-grid p{color:#aaa1ae;font-size:14px}.footer-brand{font-size:24px!important;color:#fff!important;font-weight:700}.footer-bottom{width:min(var(--max),calc(100% - 48px));margin:32px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#9e96a1}.footer-bottom a{color:#c9c1cd}.breadcrumbs{margin:24px 0 12px}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;font-size:13px;color:var(--muted)}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#b5adb7}.breadcrumbs a:hover{color:var(--purple)}.page-main{padding-bottom:32px}.page-intro{padding:48px 0 58px;border-bottom:1px solid var(--line)}.split-intro{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}.split-intro img,.collection-intro img{border-radius:28px;aspect-ratio:16/10;object-fit:cover}.collection-intro{display:grid;grid-template-columns:1fr 420px;gap:46px;align-items:center}.content-explainer{padding:54px 0}.content-explainer h2,.steps-section h2,.alias-table-section h2,.verification-section h2,.comparison-block h2,.article-spotlight h2{font-size:30px;line-height:1.25}.principle-row{display:flex;gap:10px;flex-wrap:wrap}.principle-row span,.tag-list span{border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:13px}.inner-section{padding-top:32px}.related-paths{margin:50px 0 0;padding:28px;border-radius:22px;background:var(--lavender)}.related-paths h2{font-size:22px}.related-paths a{display:inline-block;margin:6px 20px 6px 0;color:var(--purple);font-weight:700}.filter-nav{display:flex;gap:8px;flex-wrap:wrap;padding:28px 0;border-bottom:1px solid var(--line)}.filter-nav a{border:1px solid var(--line);border-radius:999px;padding:8px 13px;font-size:14px}.filter-nav a[aria-current="page"]{background:var(--purple);color:#fff;border-color:var(--purple)}.steps-section{padding:50px 0}.steps-list article{display:grid;grid-template-columns:72px 1fr;gap:22px;padding:24px 0;border-top:1px solid var(--line)}.steps-list article:last-child{border-bottom:1px solid var(--line)}.steps-list>article>span{font-size:26px;color:var(--purple)}.steps-list h3{margin:0 0 6px;font-size:20px}.steps-list p{margin:0;color:var(--muted)}.alias-table-section,.verification-section,.device-checks,.comparison-block{padding:50px 0}.alias-table{border-top:1px solid var(--line)}.alias-table>div{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}.alias-table p{margin:0;color:var(--muted)}.verification-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.verification-list{margin:0;padding:0;list-style:none;counter-reset:item}.verification-list li{padding:16px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:150px 1fr;gap:20px}.verification-list li:last-child{border-bottom:1px solid var(--line)}.verification-list span{color:var(--muted)}.check-grid,.safety-grid,.comparison-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.check-grid article,.safety-grid article,.comparison-grid article{padding:24px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.38)}.check-grid strong{color:var(--purple)}.article-spotlight{margin:30px 0;padding:34px;border-radius:26px;background:var(--lavender)}.simple-intro{padding:52px 0 34px}.prose-section{font-size:17px}.prose-section h2{font-size:26px;margin:40px 0 8px}.prose-section p{color:#504a53}.prose-section code{background:var(--lavender);padding:2px 5px;border-radius:5px}.inline-search{padding:22px 0 10px}.inline-search label{display:block;font-weight:700;margin-bottom:7px}.inline-search>div{display:flex}.inline-search input{flex:1;min-width:0;padding:12px 14px;border:1px solid var(--line);border-radius:12px 0 0 12px;background:#fff}.inline-search button{border:0;background:var(--purple);color:#fff;padding:0 20px;border-radius:0 12px 12px 0}.empty-state{padding:44px;border:1px dashed var(--purple-soft);border-radius:20px;text-align:center}.article-main{padding-bottom:20px}.article-header{max-width:900px;padding:52px 0 32px}.article-header h1{font-size:clamp(36px,5vw,62px);line-height:1.12;letter-spacing:-.035em;margin:8px 0 20px}.article-meta{display:flex;gap:20px;color:var(--muted);font-size:13px}.article-hero{margin:0}.article-hero img{width:100%;max-height:560px;object-fit:cover;border-radius:28px}.article-hero figcaption{font-size:12px;color:var(--muted);margin-top:8px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:70px;justify-content:space-between;padding:46px 0}.article-body{font-size:17px}.article-intro{font-size:20px;color:#4f4852}.article-body h2{font-size:28px;margin:40px 0 8px}.article-body p{color:#48424b}.checklist-box{background:var(--lavender);padding:26px;border-radius:20px;margin-top:36px}.checklist-box h2{margin-top:0}.checklist-box li{margin:10px 0}.article-aside{position:sticky;top:100px;align-self:start;border-left:1px solid var(--line);padding-left:24px}.article-aside h2{font-size:18px;margin-top:28px}.article-aside a{display:block;color:var(--purple);font-weight:700;margin:10px 0}.tag-list{display:flex;flex-wrap:wrap;gap:7px}.related-articles{padding-top:20px}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:500}.search-backdrop{position:absolute;inset:0;background:rgba(30,26,33,.58)}.search-panel{position:relative;width:min(720px,calc(100% - 30px));margin:12vh auto;background:var(--cream);border-radius:28px;padding:36px;box-shadow:var(--shadow)}.search-close{position:absolute;right:20px;top:18px;border:0;background:transparent}.search-panel h2{font-size:30px}.search-form label{display:block;font-weight:700;margin-bottom:8px}.search-row{display:flex}.search-row input{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px 0 0 12px;padding:12px 14px;background:#fff}.search-row button{border:0;background:var(--purple);color:#fff;border-radius:0 12px 12px 0;padding:0 20px}.modal-open{overflow:hidden}.back-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border:0;border-radius:50%;background:var(--ink);color:#fff;opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}.error-page{padding:100px 0}.error-page h1{font-size:46px}
@media (max-width:1024px){.primary-nav{gap:12px;font-size:13px}.cover-grid{grid-template-columns:1fr 420px;gap:30px}.compact-links a{grid-template-columns:1fr}.feature-split{gap:34px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.article-layout{grid-template-columns:1fr 220px;gap:40px}}
@media (max-width:820px){.header-inner{min-height:68px}.menu-toggle{display:block}.primary-nav{display:none;position:absolute;left:20px;right:20px;top:67px;background:var(--cream);border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column}.primary-nav.is-open{display:flex}.search-open{padding:8px 12px}.cover-grid,.feature-split,.dark-grid,.split-intro,.collection-intro,.verification-section,.article-layout{grid-template-columns:1fr}.cover-grid{gap:24px}.cover-visual figcaption{left:18px}.split-heading{grid-template-columns:1fr;gap:6px}.masonry-text{grid-template-columns:1fr 1fr}.aux-grid{grid-template-columns:1fr}.article-aside{position:static;border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:last-child{grid-column:auto}.collection-intro img{max-width:560px}.verification-list li{grid-template-columns:120px 1fr}}
@media (max-width:600px){.container,.footer-grid,.footer-bottom{width:min(100% - 28px,var(--max))}.header-inner{width:calc(100% - 24px);gap:10px}.brand small{display:none}.brand img{width:36px;height:36px}.brand strong{font-size:16px}.menu-toggle,.search-open{font-size:12px;padding:7px 9px}.home-cover{padding-top:34px}.cover-copy h1{font-size:40px}.cover-visual img{border-radius:24px 24px 70px 24px}.cover-visual figcaption{position:relative;left:auto;bottom:auto;width:auto;margin:-20px 16px 0}.section{padding:48px 0}.route-index a{grid-template-columns:42px 1fr}.route-index small{grid-column:2}.story-row{grid-template-columns:110px 1fr;gap:14px}.story-media img{aspect-ratio:1/1.1}.story-copy h3{font-size:18px}.story-copy p{font-size:14px}.story-copy .text-link{font-size:13px}.feature-split{gap:24px}.feature-image img{aspect-ratio:16/11;border-radius:60px 20px 20px 20px}.masonry-text{grid-template-columns:1fr}.note-card-wide{grid-column:auto}.alias-strip{grid-template-columns:1fr}.aux-main{grid-template-columns:1fr;padding:18px}.check-grid,.safety-grid,.comparison-grid{grid-template-columns:1fr}.split-intro{gap:20px}.page-intro{padding:36px 0}.page-intro h1{font-size:35px}.alias-table>div{grid-template-columns:1fr;gap:6px}.verification-list li{grid-template-columns:1fr;gap:4px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.article-header{padding-top:34px}.article-header h1{font-size:37px}.article-layout{padding-top:30px}.article-body h2{font-size:24px}.search-panel{padding:30px 20px}.search-row input{font-size:16px}}
@media (max-width:390px){.header-inner{gap:7px}.brand span{display:none}.story-row{grid-template-columns:1fr}.story-media img{aspect-ratio:16/9}.action-row{align-items:stretch;flex-direction:column}.button{text-align:center}}