:root{--bg:#f7f6f0;--card:#fff;--ink:#18211c;--muted:#59635d;--line:#dce0da;--accent:#0000ff;--soft:#eef0ff;--shadow:0 22px 60px #1112;color-scheme:light}
*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--accent)}
.site-header{position:sticky;top:0;z-index:50;height:72px;padding:0 max(4vw,20px);display:flex;align-items:center;gap:20px;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none;font-weight:850;white-space:nowrap}.brand b{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--accent);color:#fff;font:700 18px Georgia}.brand sup{font-size:9px;color:var(--accent);border:1px solid;border-radius:5px;padding:1px 4px}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:auto}.site-nav>a,.tools-nav summary{color:var(--muted);text-decoration:none;cursor:pointer;white-space:nowrap}.site-nav a[aria-current="page"]{color:var(--accent);font-weight:750}
.tools-nav{position:relative}.tools-nav summary{list-style:none}.tools-nav summary::-webkit-details-marker{display:none}.tools-nav[open] .tool-menu{display:grid}.tool-menu{display:none;position:absolute;right:0;top:42px;width:420px;grid-template-columns:repeat(2,1fr);gap:5px;padding:12px;border:1px solid var(--line);border-radius:16px;background:var(--card);box-shadow:var(--shadow)}.tool-menu a{padding:9px 11px;border-radius:9px;color:var(--ink);text-decoration:none}.tool-menu a:hover{background:var(--soft);color:var(--accent)}
.theme-toggle,.language-select{height:38px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px}.theme-toggle{width:38px;cursor:pointer}.language-select{width:auto;min-width:112px;padding:0 9px;font:inherit;font-weight:700}
.page-wrap{max-width:1180px;margin:auto;padding:40px 22px 90px}.breadcrumbs{display:flex;gap:8px;color:var(--muted);font-size:14px}.breadcrumbs a{color:var(--muted);text-decoration:none}.page-hero{padding:70px 0 52px;max-width:900px}.eyebrow{font-size:12px;font-weight:850;letter-spacing:.13em;color:var(--accent)}
h1{margin:14px 0 22px;font:600 clamp(48px,8vw,82px)/1.02 Georgia,"Songti SC",serif;letter-spacing:-.045em}h2{font:600 clamp(27px,4vw,38px)/1.15 Georgia,"Songti SC",serif}.lead{max-width:780px;color:var(--muted);font-size:19px}
.page-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:44px}.toc{position:sticky;top:98px;align-self:start;display:grid;gap:4px;padding:12px;border:1px solid var(--line);border-radius:14px;background:var(--card)}.toc b{padding:7px 9px}.toc a{padding:7px 9px;color:var(--muted);text-decoration:none;border-radius:8px}.toc a:hover{background:var(--soft);color:var(--accent)}
.content{display:grid;min-width:0;gap:18px}.content section,.card{min-width:0;scroll-margin-top:100px;padding:28px;border:1px solid var(--line);border-radius:20px;background:var(--card)}.content section h2{margin-top:0}.content p{color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.card-grid .card{padding:22px}.card h3{margin:0 0 8px}.email-card{display:flex;flex-direction:column;gap:8px}.button{display:inline-flex;width:max-content;padding:11px 17px;border-radius:11px;background:var(--accent);color:#fff;text-decoration:none;font-weight:800}.button.secondary{background:var(--soft);color:var(--accent)}details.faq{padding:14px 0;border-top:1px solid var(--line)}details.faq summary{font-weight:750;cursor:pointer}.notice{border-left:4px solid var(--accent)}
.site-footer{border-top:1px solid var(--line);padding:52px max(4vw,20px)}.footer-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}.footer-grid section{display:grid;align-content:start;gap:8px}.footer-grid h3{margin:0 0 7px;font-size:14px}.footer-grid a{color:var(--muted);text-decoration:none}.footer-bottom{max-width:1180px;margin:36px auto 0;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);display:flex;justify-content:space-between}.back-top{position:fixed;right:20px;bottom:20px;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:var(--card);color:var(--ink);cursor:pointer}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#10131d;--card:#181c29;--ink:#f2f3fa;--muted:#a9adbf;--line:#30364a;--soft:#202759;--shadow:0 22px 60px #0007;color-scheme:dark}}:root[data-theme="dark"]{--bg:#10131d;--card:#181c29;--ink:#f2f3fa;--muted:#a9adbf;--line:#30364a;--soft:#202759;--shadow:0 22px 60px #0007;color-scheme:dark}
@media(max-width:760px){.site-header{height:64px;padding:0 12px;gap:8px}.brand span{display:none}.site-nav>a{display:none}.site-nav{gap:8px}.tools-nav summary{font-size:14px}.tool-menu{position:fixed;left:10px;right:10px;top:64px;width:auto;grid-template-columns:repeat(2,1fr)}.language-select{min-width:92px;max-width:110px}.page-wrap{padding:28px 16px 65px}.page-hero{padding:45px 0 35px}.page-grid{display:block}.toc{position:static;margin-bottom:18px}.card-grid{grid-template-columns:1fr}.button{max-width:100%;white-space:normal;overflow-wrap:anywhere}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>section:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* v20 content center, conversion and business inquiry */
.growth-page,.article-page{max-width:1180px}.growth-nav{gap:18px}.content-search{display:grid;gap:8px;margin:0 0 28px}.content-search label{font-weight:800}.content-search input{width:100%;height:54px;padding:0 18px;border:1px solid var(--line);border-radius:14px;background:var(--card);color:var(--ink);font:inherit}.content-search p{color:var(--muted)}
.content-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.content-card{display:flex;flex-direction:column;min-height:250px;padding:24px;border:1px solid var(--line);border-radius:20px;background:var(--card)}.content-card>span{color:var(--accent);font-size:12px;font-weight:850;text-transform:uppercase}.content-card h2{font-size:25px}.content-card h2 a{color:var(--ink);text-decoration:none}.content-card p{color:var(--muted)}.text-link{margin-top:auto;font-weight:800;text-decoration:none}
.article-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:44px}.article-content{min-width:0}.article-intro{font-size:19px}.article-content li{margin:10px 0;color:var(--muted)}.numbered-steps{padding:0;list-style:none}.numbered-steps li{display:grid;grid-template-columns:42px 1fr;align-items:start;gap:14px}.numbered-steps li b{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff}.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.related-grid a{display:flex;justify-content:space-between;padding:16px;border:1px solid var(--line);border-radius:12px;color:var(--ink);text-decoration:none}.related-grid a:hover{border-color:var(--accent);color:var(--accent)}.ad-slot{display:flex;flex-direction:column;gap:5px;padding:18px 22px;border:1px dashed var(--line);border-radius:14px;color:var(--muted);background:color-mix(in srgb,var(--card) 70%,transparent)}.ad-slot b{color:var(--ink)}
.inquiry-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.inquiry-form label{display:grid;gap:6px;font-weight:700}.inquiry-form label.wide,.inquiry-form .form-actions{grid-column:1/-1}.inquiry-form input,.inquiry-form select,.inquiry-form textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit}.inquiry-form textarea{min-height:130px;resize:vertical}.inquiry-form .trap{position:absolute;left:-10000px}.form-actions{display:flex;align-items:center;gap:14px}.form-status{color:var(--muted)}.share-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.share-actions button,.share-actions a{padding:9px 13px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit;text-decoration:none;cursor:pointer}
.spec-table{display:grid;margin:0}.spec-table div{display:grid;grid-template-columns:minmax(130px,.5fr) 1.5fr;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}.spec-table dt{font-weight:800}.spec-table dd{margin:0;color:var(--muted)}.press-badge{display:flex;align-items:center;gap:12px;padding:18px;border:1px solid var(--line);border-radius:14px}.press-badge b{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--accent);color:#fff;font:700 24px Georgia}.embed-code{width:100%;min-height:85px;margin-top:14px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink)}
@media(max-width:900px){.growth-nav a:nth-child(3),.growth-nav a:nth-child(4){display:none}.content-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.growth-nav{display:none}.content-cards{grid-template-columns:1fr}.article-layout{display:block}.article-layout .toc{position:static;margin-bottom:18px}.related-grid,.inquiry-form{grid-template-columns:1fr}.inquiry-form label.wide,.inquiry-form .form-actions{grid-column:auto}.content-card{min-height:0}}