/* VOLENG V25.77.5 – FAQ / product support knowledge base */
:root{--vf-ink:#102341;--vf-navy:#102b55;--vf-blue:#155eef;--vf-soft:#f5f8fd;--vf-line:#dbe5f1;--vf-muted:#52647e}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.vf-body{margin:0;background:#f7f9fc;color:var(--vf-ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{text-decoration:none}button,input{font:inherit}
.vf-container{max-width:1180px;padding:0 24px;margin:auto}.vf-header{background:#fff;border-bottom:1px solid var(--vf-line);position:sticky;top:0;z-index:10;box-shadow:0 3px 15px rgba(19,45,85,.035)}.vf-nav{min-height:74px;display:flex;align-items:center;gap:25px}.vf-brand{display:flex;align-items:center;gap:9px;color:#0f2a55;font-size:20px;font-weight:850;letter-spacing:-.035em}.vf-brand img{width:32px;height:32px;object-fit:contain}.vf-spacer{flex:1}.vf-toplink{font-size:13px;color:#314b71;font-weight:650}.vf-toplink:hover{color:var(--vf-blue)}.vf-langs{display:flex;gap:4px;padding:4px;border:1px solid var(--vf-line);border-radius:11px}.vf-langs a{font-size:11px;padding:6px 8px;color:#5b7090;border-radius:7px}.vf-langs a[aria-current]{background:#eaf1ff;color:#1757bd;font-weight:850}.vf-start{background:#155eef;color:#fff!important;padding:12px 17px;border-radius:12px;box-shadow:0 7px 17px #1759db22}
.vf-hero{background:radial-gradient(ellipse 52% 120% at 92% 0%,#dce8ff 0%,transparent 75%),linear-gradient(123deg,#fff 0%,#f0f6ff 100%);border-bottom:1px solid #e5ecf6;padding:68px 0 54px}.vf-eyebrow{font-size:11px;font-weight:850;letter-spacing:.15em;color:#185cce}.vf-hero h1{font-size:clamp(35px,4vw,56px);line-height:1.08;letter-spacing:-.045em;color:#102b55;max-width:750px;margin:13px 0 14px}.vf-hero p{font-size:16px;line-height:1.65;color:#52647e;max-width:650px;margin:0 0 25px}
.vf-searchbox{display:flex;align-items:center;gap:13px;background:white;border:1px solid #c7d8f0;border-radius:16px;box-shadow:0 10px 30px rgba(29,68,125,.09);padding:9px 10px 9px 19px;max-width:780px}.vf-searchbox svg{flex:none;color:#155eef}.vf-searchbox input{min-width:0;flex:1;border:0;outline:none;font-size:15px;color:#102341;padding:13px 0}.vf-searchbox input::placeholder{color:#798a9f}.vf-searchbox button{border:0;background:#eaf2ff;color:#1959bb;border-radius:10px;padding:10px 12px;cursor:pointer;font-size:12px;font-weight:800}.vf-searchbox button[hidden]{display:none}
.vf-main{padding-top:35px;padding-bottom:80px}.vf-topics-label{font-size:13px;font-weight:800;letter-spacing:.02em;color:#1e365b;margin-bottom:15px}.vf-topics{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}.vf-topic{padding:10px 14px;min-height:39px;border:1px solid #d8e4f4;background:#fff;color:#334e71;border-radius:999px;cursor:pointer;font-size:12px;font-weight:750;transition:background .2s,box-shadow .2s}.vf-topic.is-active{background:#155eef;border-color:#155eef;color:#fff;box-shadow:0 8px 17px rgba(21,94,239,.20)}.vf-topic:hover:not(.is-active){border-color:#94b8fa;background:#f2f7ff}.vf-status{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:18px 0 16px}.vf-count{font-size:12px;color:#5a718f;font-weight:700}.vf-status a{color:#155eef;font-size:12px;font-weight:750}.vf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:start}.vf-faq{background:#fff;border:1px solid #dce5f2;border-radius:17px;box-shadow:0 7px 18px rgba(15,46,86,.04);overflow:hidden;transition:box-shadow .18s,border-color .18s}.vf-faq[open]{border-color:#93b9f7;box-shadow:0 13px 25px rgba(28,77,149,.10)}.vf-faq[hidden]{display:none}.vf-faq summary{display:flex;align-items:center;gap:12px;padding:17px 19px;list-style:none;cursor:pointer;font-size:14px;line-height:1.4;font-weight:750;color:#15345c}.vf-faq summary::-webkit-details-marker{display:none}.vf-faq .vf-tag{flex:none;color:#205ec5;background:#edf4ff;border-radius:9px;padding:5px 7px;font-size:10px;font-weight:750;max-width:45%}.vf-faq summary strong{flex:1}.vf-faq .vf-plus{display:grid;place-items:center;border-radius:50%;width:25px;height:25px;background:#eaf2ff;color:#1456bd;flex:none;font-size:17px;font-weight:400;transition:transform .2s}.vf-faq[open] .vf-plus{transform:rotate(45deg)}.vf-faq p{font-size:13px;line-height:1.75;color:#536a87;padding:0 19px 19px;margin:0}.vf-empty{border:1px dashed #aec7e8;border-radius:18px;background:#fff;padding:35px;text-align:center}.vf-empty[hidden]{display:none}.vf-empty h2{margin:0 0 6px;color:#15345c}.vf-empty p{color:#576e88}.vf-empty button{border:0;background:#155eef;color:white;border-radius:10px;padding:12px 19px;cursor:pointer;font-weight:700}
.vf-help{margin-top:37px;display:flex;align-items:center;justify-content:space-between;gap:25px;border:1px solid #cadcf7;border-radius:22px;background:linear-gradient(110deg,#edf4ff,#fff);padding:28px 31px}.vf-help h2{margin:0 0 8px;letter-spacing:-.025em}.vf-help p{margin:0;color:#586c84;font-size:13px;line-height:1.6}.vf-help a{flex:none;display:inline-flex;align-items:center;background:#155eef;color:white;border-radius:12px;padding:13px 17px;font-size:13px;font-weight:800}.vf-footer{background:#102b55;color:#e1ebfa;padding:25px 0}.vf-footer .vf-container{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.vf-footer a{color:#fff}.vf-footer span{flex:1}
@media(max-width:800px){.vf-grid{grid-template-columns:1fr}.vf-hero{padding:46px 0 38px}.vf-header .vf-toplink{display:none}.vf-help{flex-direction:column;align-items:stretch}.vf-help a{justify-content:center}}
@media(max-width:480px){.vf-container{padding:0 16px}.vf-nav{gap:9px;min-height:63px}.vf-brand{font-size:17px}.vf-brand img{width:28px;height:28px}.vf-langs a{font-size:10px;padding:5px}.vf-start{padding:9px 11px;font-size:11px}.vf-hero h1{font-size:36px}.vf-hero p{font-size:14px}.vf-searchbox{border-radius:12px;padding-left:12px}.vf-searchbox input{font-size:14px}.vf-faq summary{padding:15px 13px;font-size:13px}.vf-faq p{padding:0 13px 17px}.vf-faq .vf-tag{font-size:9px;max-width:35%}.vf-main{padding-top:25px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}
@media print{.vf-header,.vf-topics,.vf-searchbox,.vf-help,.vf-status,.vf-footer{display:none!important}.vf-hero{padding:15px}.vf-grid{display:block}.vf-faq{break-inside:avoid;margin-bottom:10px}.vf-faq p{display:block}}