:root{
  --primary:#6F5AE8;
  --primary-soft:#9A8CF2;
  --ink:#242433;
  --text:#30303A;
  --muted:#70707D;
  --bg:#F8F8FC;
  --soft:#F0EEFA;
  --accent:#F29A4A;
  --white:#FFFFFF;
  --line:#DEDCEA;
  --shadow:0 18px 50px rgba(36,36,51,.08);
  --radius:24px;
  --radius-sm:16px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.72;overflow-wrap:anywhere}
body.modal-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-underline-offset:4px}
button,input{font:inherit}
button{cursor:pointer}
.shell{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px;text-decoration:none}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(248,248,252,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(222,220,234,.8)}
.header-row{min-height:76px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:max-content}
.brand img{width:44px;height:44px;object-fit:contain}
.brand span{display:grid;line-height:1.2}
.brand strong{font-size:17px;color:var(--ink)}
.brand small{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.04em}
.primary-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.primary-nav a{padding:10px 11px;text-decoration:none;border-radius:10px;color:#50505d;font-size:14px}
.primary-nav a:hover,.primary-nav a.is-active{background:var(--soft);color:var(--primary)}
.search-trigger,.nav-toggle{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:9px 13px}
.search-trigger:hover,.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
.nav-toggle{display:none;margin-left:auto}
main{min-height:60vh}
.hero,.page-hero{padding:72px 0 48px}
.hero-home{padding-top:84px;background:linear-gradient(180deg,#F4F1FF 0%,#F8F8FC 72%)}
.hero-grid,.two-col{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(340px,.96fr);align-items:center;gap:56px}
.hero-copy{padding:18px 0}
.eyebrow{margin:0 0 12px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
h1,h2,h3{color:var(--ink);line-height:1.25;margin-top:0}
h1{font-size:clamp(36px,5vw,66px);letter-spacing:-.04em;margin-bottom:22px}
h2{font-size:clamp(26px,3.2vw,40px);letter-spacing:-.025em;margin-bottom:16px}
h3{font-size:20px;margin-bottom:10px}
p{margin-top:0}
.lead{font-size:19px;color:#565664;max-width:820px;line-height:1.75}
.hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:13px;text-decoration:none;font-weight:800;border:1px solid transparent;transition:.2s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 28px rgba(111,90,232,.22)}
.btn-primary:hover{background:#604BD7}
.btn-accent{background:var(--accent);color:#27190d;box-shadow:0 10px 28px rgba(242,154,74,.18)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--primary)}
.btn-light{background:#fff;color:var(--ink)}
.text-link{color:var(--primary);font-weight:800;text-decoration:none}
.text-link:hover{text-decoration:underline}
.hero-notes{display:flex;gap:10px 20px;flex-wrap:wrap;padding:0;margin:28px 0 0;list-style:none;color:var(--muted);font-size:13px}
.hero-notes li:before{content:"✓";color:var(--primary);font-weight:900;margin-right:7px}
.hero-media{margin:0;position:relative}
.hero-media img,.rounded-media{width:100%;border-radius:30px;box-shadow:var(--shadow);object-fit:cover;background:var(--soft)}
.hero-media figcaption{position:absolute;left:22px;right:22px;bottom:18px;background:rgba(36,36,51,.82);color:#fff;padding:10px 13px;border-radius:12px;font-size:13px;backdrop-filter:blur(10px)}
.section{padding-top:82px;padding-bottom:82px}
.section-tint{background:#F0EEFA}
.section-soft{background:#F5F3FB}
.section-dark{background:var(--ink);color:#D8D7E1}
.section-heading{margin-bottom:32px;max-width:760px}
.section-heading p:last-child{color:var(--muted)}
.section-heading.light h2,.section-heading.light p{color:#fff}
.section-heading.light .eyebrow{color:#C8BEFF}
.split-heading{max-width:none;display:flex;justify-content:space-between;align-items:end;gap:28px}
.split-heading>p,.split-heading>a{max-width:440px;margin-bottom:8px}
.intent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.intent-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(36,36,51,.035)}
.intent-card img{width:100%;aspect-ratio:1.68/1;object-fit:cover}
.intent-card>div{padding:23px}
.intent-card p{color:var(--muted);font-size:15px}
.intent-card a{color:var(--primary);font-weight:800;text-decoration:none}
.check-list{list-style:none;padding:0;margin:24px 0 28px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:30px}
.check-list li:before{content:"✓";position:absolute;left:0;top:1px;width:20px;height:20px;display:grid;place-items:center;border-radius:50%;background:#E7E2FF;color:var(--primary);font-weight:900;font-size:12px}
.download-band,.about-band{background:#fff;border:1px solid var(--line);border-radius:30px;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;overflow:hidden;box-shadow:var(--shadow)}
.download-band>div,.about-band>div{padding:42px}
.download-band img,.about-band img{width:100%;height:100%;min-height:340px;object-fit:cover}
.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:30px 0}
.feature-strip article{border-top:1px solid #4B4B5C;padding:22px 2px}
.feature-strip h3{color:#fff}
.feature-strip p{color:#BEBECB;font-size:14px}
.editorial-list{border-top:1px solid var(--line)}
.editorial-item{display:grid;grid-template-columns:70px 1fr;gap:16px;padding:26px 0;border-bottom:1px solid var(--line)}
.index-num{font-size:26px;font-weight:900;color:#BBB6D9}
.editorial-item h3{margin-bottom:6px}
.editorial-item h3 a{text-decoration:none}
.editorial-item h3 a:hover{color:var(--primary)}
.editorial-item p{margin-bottom:0;color:var(--muted)}
.meta{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)!important}
.guide-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}
.guide-intro{position:sticky;top:108px}
.guide-intro img{border-radius:24px;margin-bottom:26px}
.guide-steps{counter-reset:steps;list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.guide-steps li{padding:24px 0 24px 68px;border-bottom:1px solid var(--line);position:relative}
.guide-steps li:before{counter-increment:steps;content:counter(steps);position:absolute;left:0;top:24px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--primary);font-weight:900;border:1px solid var(--line)}
.guide-steps p{color:var(--muted)}
.guide-steps a{color:var(--primary);font-weight:800}
.compat-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:24px}
.compat-mini article{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fff}
.compat-mini span{font-size:12px;font-weight:900;color:var(--primary)}
.compat-mini p{margin:0;color:var(--muted)}
.faq-preview{display:grid;grid-template-columns:.82fr 1.18fr;gap:60px;align-items:start}
.faq-preview img{border-radius:22px;margin-top:24px}
.faq-list details,.faq-page-list details{border-bottom:1px solid var(--line);background:transparent}
.faq-list summary,.faq-page-list summary{cursor:pointer;list-style:none;font-weight:800;color:var(--ink);padding:19px 42px 19px 0;position:relative}
.faq-list summary::-webkit-details-marker,.faq-page-list summary::-webkit-details-marker{display:none}
.faq-list summary:after,.faq-page-list summary:after{content:"+";position:absolute;right:4px;top:14px;font-size:24px;color:var(--primary)}
.faq-list details[open] summary:after,.faq-page-list details[open] summary:after{content:"−"}
.faq-list details p{color:var(--muted);padding-right:38px}
.static-faq .btn{margin-top:22px}
.inline-links{display:flex;flex-wrap:wrap;gap:10px 18px}
.inline-links a{color:var(--primary);font-weight:800}
.site-footer{background:#1E1E2B;color:#CFCFDC;padding:58px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}
.footer-grid h2{font-size:16px;color:#fff;margin-bottom:14px}
.footer-grid section{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.footer-grid p{font-size:14px;color:#9F9FAC;max-width:390px}
.footer-grid a{font-size:14px;color:#BCBBC9;text-decoration:none}
.footer-grid a:hover{color:#fff}
.footer-bottom{border-top:1px solid #393948;margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#838391}
.search-modal[hidden]{display:none !important}
.search-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:start center;padding:10vh 20px 20px}
.search-backdrop{position:absolute;inset:0;background:rgba(18,18,27,.66);backdrop-filter:blur(5px)}
.search-panel{position:relative;z-index:1;width:min(640px,100%);background:#fff;border-radius:24px;padding:34px;box-shadow:0 28px 90px rgba(0,0,0,.28)}
.search-panel h2{font-size:28px}
.search-panel p{color:var(--muted)}
.modal-close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:32px;color:var(--muted)}
.search-form label,.page-search label{display:block;font-weight:800;margin-bottom:8px}
.search-line,.page-search>div{display:flex;gap:10px}
.search-line input,.page-search input{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#FBFAFE}
.search-line input:focus,.page-search input:focus{outline:3px solid rgba(111,90,232,.12);border-color:var(--primary)}
.search-line button{border:0;border-radius:12px;background:var(--primary);color:#fff;padding:12px 18px;font-weight:800}
.back-to-top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--primary);box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;z-index:40}
.back-to-top.is-visible{opacity:1;pointer-events:auto;transform:none}
.page-top{padding-top:22px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px 10px;padding:0;margin:0;color:var(--muted);font-size:13px}
.breadcrumb li:not(:last-child):after{content:"/";margin-left:10px;color:#B4B1C2}
.breadcrumb a{text-decoration:none;color:var(--muted)}
.page-hero{padding-top:42px;background:linear-gradient(180deg,#F5F2FF 0%,#F8F8FC 100%)}
.page-hero.compact .shell{max-width:900px;margin-left:auto;margin-right:auto;text-align:left}
.page-hero.compact h1{font-size:clamp(34px,5vw,58px)}
.notice-box{margin-top:28px;padding:18px 20px;background:#FFF6EC;border:1px solid #F2D6B9;border-radius:16px}
.notice-box strong{color:#9A571B}
.notice-box p{margin:5px 0 0;color:#6C4B2E;font-size:14px}
.comparison-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.comparison-grid article{padding:26px;border-radius:20px;border:1px solid var(--line);background:#fff}
.comparison-grid article>span{display:inline-block;color:var(--primary);font-size:12px;font-weight:900;margin-bottom:24px}
.comparison-grid p{color:var(--muted);margin-bottom:0}
.number-list{padding-left:22px;display:grid;gap:16px}
.number-list li{padding-left:6px}
.content-prose.narrow{max-width:820px}
.content-prose p{font-size:17px;color:#535361}
.next-reading{display:grid;grid-template-columns:.78fr 1.22fr;gap:50px;align-items:start}
.next-links{display:grid;gap:10px}
.next-links a{display:flex;justify-content:space-between;gap:20px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:15px;text-decoration:none}
.next-links a:hover{border-color:var(--primary)}
.next-links strong{color:var(--ink)}
.next-links span{color:var(--muted);font-size:13px;text-align:right}
.step-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.step-grid article{padding:22px 18px;background:#fff;border:1px solid var(--line);border-radius:18px}
.step-grid article>span{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--soft);color:var(--primary);font-weight:900;margin-bottom:22px}
.step-grid p{color:var(--muted);font-size:14px;margin:0}
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline:before{content:"";position:absolute;left:90px;top:0;bottom:0;width:1px;background:var(--line)}
.timeline li{display:grid;grid-template-columns:72px 1fr;gap:38px;position:relative;padding:0 0 38px}
.timeline li>span{font-size:12px;font-weight:900;color:var(--primary);text-align:right;padding-top:5px}
.timeline li>div{position:relative;padding-left:18px}
.timeline li>div:before{content:"";position:absolute;left:-25px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px #EEEAFD}
.timeline p{color:var(--muted)}
.feature-detail-list{border-top:1px solid var(--line)}
.feature-detail-list article{display:grid;grid-template-columns:95px 1fr;gap:26px;padding:32px 0;border-bottom:1px solid var(--line)}
.feature-num{font-size:36px;color:#C5C0E1;font-weight:900;letter-spacing:-.05em}
.feature-detail-list article p{max-width:840px;color:var(--muted)}
.feature-detail-list article a{color:var(--primary);font-weight:800}
.guide-index{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.guide-index article{padding:28px;border:1px solid var(--line);border-radius:20px;background:#fff}
.guide-index article>span{color:#B2ACD3;font-size:14px;font-weight:900}
.guide-index p{color:var(--muted)}
.guide-index a{color:var(--primary);font-weight:800;text-decoration:none}
.guide-article,.article-layout,.legal-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.guide-main,.article-body{max-width:760px}
.guide-main>p,.article-body>p{font-size:17px;line-height:1.9;color:#4B4B57}
.large-steps{list-style:none;padding:0;margin:22px 0 44px;display:grid;gap:12px}
.large-steps li{display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff}
.large-steps span{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:var(--primary);color:#fff;font-weight:900}
.large-steps p{margin:4px 0 0}
.side-card{position:sticky;top:105px;padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff;display:flex;flex-direction:column;gap:10px}
.side-card h2{font-size:18px;margin:0 0 6px}
.side-card a{padding:9px 0;border-bottom:1px solid #ECEAF3;text-decoration:none;color:#555463}
.side-card a:hover{color:var(--primary)}
.side-card img{border-radius:14px;margin-bottom:6px}
.compat-table{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff}
.compat-row{display:grid;grid-template-columns:300px 1fr;gap:30px;padding:24px 28px;border-bottom:1px solid var(--line);align-items:start}
.compat-row:last-child{border-bottom:0}
.compat-row>div{display:flex;flex-direction:column;gap:5px}
.compat-row span{font-size:12px;color:var(--primary);font-weight:900}
.compat-row p{color:var(--muted);margin:0}
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.article-card{display:grid;grid-template-columns:190px 1fr;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;min-height:210px}
.article-card img{width:100%;height:100%;object-fit:cover}
.article-card>div{padding:22px}
.article-card h2{font-size:21px;margin-bottom:9px}
.article-card h2 a{text-decoration:none}
.article-card h2 a:hover{color:var(--primary)}
.article-card p{color:var(--muted);font-size:14px}
.tag-row{display:flex;gap:6px;flex-wrap:wrap}
.tag-row span{display:inline-flex;padding:4px 9px;border-radius:999px;background:var(--soft);color:#625D7D;font-size:11px}
.article-page{padding-top:36px;padding-bottom:86px}
.article-header{max-width:900px;margin:0 auto 34px}
.article-header h1{font-size:clamp(38px,5vw,62px)}
.article-cover{max-width:980px;margin:0 auto 48px}
.article-cover img{width:100%;border-radius:26px;aspect-ratio:1.88/1;object-fit:cover}
.article-cover figcaption{font-size:12px;color:var(--muted);margin-top:10px}
.article-layout{max-width:1000px;margin:0 auto}
.article-body h2{margin-top:44px;font-size:28px}
.faq-page-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-page-list summary{font-size:18px;display:grid;grid-template-columns:48px 1fr;gap:12px}
.faq-page-list summary span{color:#AAA5C7;font-size:13px;padding-top:4px}
.faq-page-list details>div{padding:0 52px 18px 60px;color:var(--muted)}
.prose-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.prose-grid article,.safety-grid article{padding:28px;background:#fff;border:1px solid var(--line);border-radius:20px}
.prose-grid p,.safety-grid p{color:var(--muted);margin-bottom:0}
.legal-layout h2{font-size:25px;margin-top:38px}
.legal-layout h2:first-child{margin-top:0}
.legal-layout>div>p{font-size:16px;color:#51515f}
.legal-layout code{font-size:.9em;background:var(--soft);padding:2px 5px;border-radius:5px}
.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.contact-grid article{padding:28px;border:1px solid var(--line);border-radius:20px;background:#fff}
.contact-grid article>span{font-size:12px;font-weight:900;color:var(--primary)}
.contact-grid ul{padding-left:20px;color:var(--muted)}
.page-search{margin-top:28px;max-width:720px}
.page-search>div{display:flex}
.empty-state{text-align:center;padding:58px 20px;background:#fff;border:1px solid var(--line);border-radius:24px}
.empty-state p{color:var(--muted);max-width:620px;margin-left:auto;margin-right:auto}
.empty-state .inline-links{justify-content:center;margin-top:20px}
.search-results{max-width:900px;margin:0 auto}
.result-count{font-size:13px;color:var(--muted);margin-bottom:14px}
.search-results article{padding:24px 0;border-bottom:1px solid var(--line)}
.search-results article>span{font-size:11px;color:var(--primary);font-weight:900}
.search-results h2{font-size:23px;margin:6px 0}
.search-results h2 a{text-decoration:none}
.search-results p{color:var(--muted);margin:0}
.not-found{text-align:center;padding-top:90px;padding-bottom:100px;max-width:900px}
.error-code{font-size:clamp(80px,18vw,180px);font-weight:900;line-height:.9;color:#E3DFFC;letter-spacing:-.08em}
.not-found h1{font-size:clamp(30px,5vw,50px)}
.not-found>p{color:var(--muted);max-width:660px;margin-left:auto;margin-right:auto}
.not-found .hero-actions{justify-content:center}
.not-found .next-links{margin-top:42px;text-align:left}
@media (max-width:1100px){
  .primary-nav a{padding:9px 7px;font-size:13px}
  .header-row{gap:10px}
  .feature-strip{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(3,1fr)}
  .article-card{grid-template-columns:150px 1fr}
}
@media (max-width:920px){
  .shell{width:min(calc(100% - 30px),var(--max))}
  .nav-toggle{display:inline-flex}
  .primary-nav{position:absolute;left:15px;right:15px;top:70px;display:none;flex-direction:column;align-items:stretch;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
  .primary-nav.is-open{display:flex}
  .primary-nav a{padding:11px 13px}
  .search-trigger{margin-left:0}
  .hero-grid,.two-col{grid-template-columns:1fr;gap:34px}
  .hero-media{max-width:720px}
  .intent-grid{grid-template-columns:1fr}
  .intent-card{display:grid;grid-template-columns:240px 1fr}
  .intent-card img{height:100%;aspect-ratio:auto}
  .guide-layout,.faq-preview,.next-reading{grid-template-columns:1fr;gap:34px}
  .guide-intro,.side-card{position:static}
  .compat-mini{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .comparison-grid{grid-template-columns:1fr}
  .guide-article,.article-layout,.legal-layout{grid-template-columns:1fr}
  .article-grid{grid-template-columns:1fr}
  .article-card{grid-template-columns:190px 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:700px){
  .shell{width:min(calc(100% - 24px),var(--max))}
  .site-header{position:relative}
  .brand strong{font-size:15px}
  .brand small{display:none}
  .brand img{width:38px;height:38px}
  .header-row{min-height:66px}
  .search-trigger{padding:8px 10px}
  .nav-toggle{padding:8px 10px}
  .primary-nav{top:62px;left:12px;right:12px}
  .hero,.page-hero{padding:48px 0 36px}
  .hero-home{padding-top:54px}
  h1{font-size:38px}
  h2{font-size:28px}
  .lead{font-size:17px}
  .section{padding-top:58px;padding-bottom:58px}
  .split-heading{align-items:start;flex-direction:column;gap:6px}
  .intent-card{display:block}
  .intent-card img{height:auto;aspect-ratio:1.68/1}
  .download-band,.about-band{grid-template-columns:1fr}
  .download-band>div,.about-band>div{padding:26px}
  .download-band img,.about-band img{min-height:0;max-height:360px}
  .feature-strip{grid-template-columns:1fr}
  .editorial-item{grid-template-columns:48px 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-grid section:first-child{grid-column:1/-1}
  .footer-bottom{flex-direction:column}
  .search-panel{padding:28px 20px}
  .search-line{flex-direction:column}
  .compat-row{grid-template-columns:1fr;gap:12px;padding:20px}
  .step-grid{grid-template-columns:1fr 1fr}
  .timeline:before{left:16px}
  .timeline li{grid-template-columns:1fr;gap:8px;padding-left:36px}
  .timeline li>span{text-align:left}
  .timeline li>div{padding-left:0}
  .timeline li>div:before{left:-25px}
  .feature-detail-list article{grid-template-columns:58px 1fr}
  .feature-num{font-size:28px}
  .guide-index{grid-template-columns:1fr}
  .article-card{grid-template-columns:1fr}
  .article-card img{height:220px}
  .prose-grid,.safety-grid{grid-template-columns:1fr}
  .page-search>div{flex-direction:column}
  .next-links a{flex-direction:column;gap:4px}
  .next-links span{text-align:left}
  .faq-page-list summary{grid-template-columns:36px 1fr;font-size:16px}
  .faq-page-list details>div{padding-left:48px}
}
@media (max-width:440px){
  .brand span{max-width:120px}
  .search-trigger{font-size:13px}
  .nav-toggle{font-size:13px}
  h1{font-size:34px}
  .hero-actions{align-items:stretch;flex-direction:column}
  .hero-actions .btn,.hero-actions .text-link{text-align:center}
  .hero-notes{display:grid}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid section:first-child{grid-column:auto}
  .modal-close{right:10px;top:8px}
}