:root {
    --bg-page: #060a13;
    --bg-page-alt: #0a0f1c;
    --bg-card: #0e1526;
    --bg-card-2: #111a2e;
    --bg-panel: #0b1220;
    --border-color: #1c2740;
    --border-soft: #16203a;
    --primary: #2fe3c4;
    --primary-dim: #1fae95;
    --primary-rgb: 47, 227, 196;
    --primary-bright: #7bf5de;
    --accent: #f4b83f;
    --accent-rgb: 244, 184, 63;
    --text-main: #e9eefb;
    --text-muted: #97a3c2;
    --text-soft: #616f92;
    --danger: #ef6a6a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-page);
    color: var(--text-main);
    line-height: 1.7;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }
code { background: rgba(255,255,255,0.06); padding: 2px 6px; border-radius: 4px; font-size: 0.92em; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 5%; }
section { padding: 68px 5%; position: relative; }

/* Background radar texture: faint concentric rings + grid, fixed on page */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 82% 8%, rgba(var(--primary-rgb), 0.10) 0%, transparent 40%),
        radial-gradient(circle at 6% 60%, rgba(var(--primary-rgb), 0.06) 0%, transparent 45%);
}
nav, header, section, footer, main { position: relative; z-index: 1; }

/* Navbar */
.navbar {
    position: sticky; top: 0; width: 100%; z-index: 1000;
    background: rgba(6, 10, 19, 0.88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 5%; height: 68px;
}
.nav-brand { font-size: 18px; font-weight: 800; color: var(--text-main); display: flex; align-items: center; gap: 10px; letter-spacing: 0.3px; }
.nav-brand .brand-cn { color: var(--text-main); }
.nav-brand .brand-en { color: var(--text-soft); font-weight: 600; font-size: 12.5px; letter-spacing: 0.5px; margin-left: 2px; }
.nav-brand .radar-mark { position: relative; width: 26px; height: 26px; border-radius: 50%; border: 1.5px solid rgba(var(--primary-rgb), 0.55); flex-shrink: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; background: radial-gradient(circle, rgba(var(--primary-rgb),0.16) 0%, transparent 70%); }
.nav-brand .radar-mark::before { content: ""; position: absolute; inset: 0; background: conic-gradient(from 0deg, rgba(var(--primary-rgb),0.85), transparent 28%); animation: sweep 3.6s linear infinite; }
.nav-brand .radar-mark::after { content: ""; position: absolute; width: 4px; height: 4px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 6px 1px rgba(var(--primary-rgb), 0.8); }
@keyframes sweep { to { transform: rotate(360deg); } }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-weight: 600; font-size: 14.5px; color: var(--text-muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--primary); }
.menu-toggle { display: none; font-size: 24px; cursor: pointer; color: var(--text-main); background: none; border: none; }
.nav-menu-wrapper { display: flex; align-items: center; gap: 28px; }
.nav-actions .btn { padding: 9px 18px; font-size: 13.5px; }

/* Buttons */
.btn { display: inline-block; padding: 12px 26px; border-radius: 10px; font-weight: 700; text-align: center; transition: all 0.2s; cursor: pointer; border: 1px solid transparent; font-size: 15px; }
.btn-primary { background: var(--primary); color: #04231d; box-shadow: 0 8px 22px rgba(var(--primary-rgb), 0.28); }
.btn-primary:hover { background: var(--primary-bright); transform: translateY(-1px); }
.btn-accent { background: var(--accent); color: #2b1c02; box-shadow: 0 8px 22px rgba(var(--accent-rgb), 0.28); }
.btn-accent:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn-outline { border: 1px solid var(--border-color); color: var(--text-main); background: rgba(255,255,255,0.02); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 8px 18px; font-size: 13.5px; }
.btn-block { display: block; width: 100%; }

/* Hero */
.hero { text-align: center; padding: 90px 5% 60px; border-bottom: 1px solid var(--border-color); overflow: hidden; background: radial-gradient(ellipse 900px 500px at 50% -10%, rgba(var(--primary-rgb), 0.12), transparent 70%); }
.hero-tag { display: inline-flex; align-items: center; gap: 7px; background: rgba(var(--primary-rgb), 0.1); color: var(--primary-bright); padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 700; margin-bottom: 24px; border: 1px solid rgba(var(--primary-rgb), 0.28); }
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 8px 1px rgba(var(--primary-rgb), 0.9); }
.hero h1 { font-size: 42px; line-height: 1.35; margin-bottom: 18px; color: var(--text-main); max-width: 840px; margin-inline: auto; }
.hero h1 em { color: var(--primary); font-style: normal; }
.hero p { font-size: 17px; color: var(--text-muted); max-width: 660px; margin: 0 auto 30px; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }
.hero-stats { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; font-size: 13.5px; color: var(--text-soft); }
.hero-stats span { display: inline-flex; align-items: center; gap: 6px; }

/* Directory tiles */
.nav-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 1140px; margin: -32px auto 0; padding: 0 5%; position: relative; z-index: 5; }
.nav-tile { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 24px 18px; text-align: center; transition: transform 0.2s, border-color 0.2s; }
.nav-tile:hover { transform: translateY(-4px); border-color: rgba(var(--primary-rgb), 0.4); }
.nav-tile .tile-icon { font-size: 28px; margin-bottom: 10px; }
.nav-tile h3 { font-size: 15.5px; margin-bottom: 5px; color: var(--text-main); }
.nav-tile p { font-size: 12.5px; color: var(--text-soft); }

/* Section head */
.section-head { text-align: center; margin-bottom: 42px; }
.section-head .eyebrow { display: inline-block; font-size: 12.5px; font-weight: 700; color: var(--primary-bright); background: rgba(var(--primary-rgb), 0.1); padding: 4px 14px; border-radius: 20px; margin-bottom: 14px; letter-spacing: 0.5px; }
.section-head h2 { font-size: 27px; margin-bottom: 10px; color: var(--text-main); }
.section-head p { font-size: 15px; color: var(--text-muted); max-width: 620px; margin: 0 auto; }

/* Editor's picks (radar gauge cards) */
.pick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 8px; }
.pick-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 18px; padding: 26px 22px; text-align: center; position: relative; }
.pick-card.is-featured { border-color: rgba(var(--primary-rgb), 0.5); box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.25), 0 20px 40px rgba(0,0,0,0.35); }
.pick-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #04231d; font-size: 12px; font-weight: 800; padding: 4px 14px; border-radius: 20px; white-space: nowrap; }
.pick-label { font-size: 12.5px; color: var(--text-soft); margin-bottom: 4px; }
.pick-name { font-size: 19px; font-weight: 800; margin-bottom: 16px; color: var(--text-main); }
.gauge { width: 112px; height: 112px; margin: 0 auto 16px; position: relative; }
.gauge svg { transform: rotate(-90deg); }
.gauge .gauge-track { fill: none; stroke: var(--border-soft); stroke-width: 8; }
.gauge .gauge-value { fill: none; stroke: var(--primary); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset 0.6s ease; }
.gauge .gauge-num { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.gauge .gauge-num strong { font-size: 24px; color: var(--text-main); line-height: 1; }
.gauge .gauge-num span { font-size: 10.5px; color: var(--text-soft); margin-top: 2px; }
.pick-card.is-featured .gauge .gauge-value { stroke: var(--accent); }
.pick-price { font-size: 15px; color: var(--text-muted); margin-bottom: 6px; }
.pick-price strong { color: var(--text-main); font-size: 17px; }
.pick-desc { font-size: 13px; color: var(--text-soft); margin-bottom: 18px; min-height: 38px; }

/* Comparison table */
.compare-wrap { overflow-x: auto; margin-bottom: 14px; }
.compare-table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 720px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; overflow: hidden; }
.compare-table th, .compare-table td { padding: 16px 18px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--border-soft); }
.compare-table thead th { background: var(--bg-panel); color: var(--text-soft); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.5px; font-weight: 700; }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr.is-reco { background: rgba(var(--primary-rgb), 0.06); }
.compare-table .tier-name { font-weight: 800; color: var(--text-main); display: flex; align-items: center; gap: 8px; }
.reco-chip { background: var(--primary); color: #04231d; font-size: 11px; font-weight: 800; padding: 2px 9px; border-radius: 10px; }
.score-inline { display: inline-flex; align-items: baseline; gap: 3px; font-weight: 800; color: var(--primary-bright); }
.score-inline span { font-size: 11.5px; color: var(--text-soft); font-weight: 500; }
.tag-chip { display: inline-block; background: rgba(255,255,255,0.05); border: 1px solid var(--border-color); color: var(--text-muted); font-size: 11.5px; padding: 2px 9px; border-radius: 8px; margin: 2px 3px 2px 0; }
.compare-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.compare-fineprint { font-size: 12.5px; color: var(--text-soft); text-align: center; margin-top: 6px; }

/* Guides grid */
.guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.guide-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 22px 18px; transition: transform 0.2s, border-color 0.2s; }
.guide-card:hover { transform: translateY(-3px); border-color: rgba(var(--primary-rgb), 0.35); }
.guide-num { font-size: 11.5px; font-weight: 800; color: var(--primary); opacity: 0.7; margin-bottom: 8px; letter-spacing: 1px; }
.guide-card h3 { font-size: 15.5px; margin-bottom: 8px; line-height: 1.4; }
.guide-card h3 a { color: var(--text-main); }
.guide-card h3 a:hover { color: var(--primary); }
.guide-card p { font-size: 13px; color: var(--text-muted); margin-bottom: 10px; }
.guide-card .read-more { font-size: 12.5px; font-weight: 700; color: var(--primary); }

/* Client / tutorial teaser row */
.teaser-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.teaser-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 18px; padding: 30px; }
.teaser-card .teaser-icon { font-size: 30px; margin-bottom: 12px; }
.teaser-card h3 { font-size: 19px; margin-bottom: 8px; }
.teaser-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 18px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-list details { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 18px 22px; margin-bottom: 12px; }
.faq-list details[open] { border-color: rgba(var(--primary-rgb), 0.35); }
.faq-list summary { font-weight: 700; cursor: pointer; font-size: 15.5px; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before { content: "▸"; color: var(--primary); margin-right: 10px; display: inline-block; transition: transform 0.2s; }
.faq-list details[open] summary::before { transform: rotate(90deg); }
.faq-list p { margin-top: 10px; font-size: 14.5px; color: var(--text-muted); }

/* Bottom CTA */
.bottom-cta { text-align: center; background: linear-gradient(120deg, rgba(var(--primary-rgb),0.16), rgba(var(--primary-rgb),0.04)); border: 1px solid rgba(var(--primary-rgb),0.25); border-radius: 24px; max-width: 1140px; margin: 0 auto; padding: 58px 5%; }
.bottom-cta h2 { font-size: 26px; margin-bottom: 12px; color: var(--text-main); }
.bottom-cta p { color: var(--text-muted); margin-bottom: 24px; font-size: 15px; }

/* Detail page: quick access box */
.quick-access { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; background: var(--bg-card); border: 1px solid rgba(var(--primary-rgb), 0.3); border-radius: 18px; padding: 26px 28px; margin-bottom: 40px; }
.quick-access .qa-text { flex: 1; min-width: 220px; }
.quick-access .qa-text h3 { font-size: 17px; margin-bottom: 6px; }
.quick-access .qa-text p { font-size: 13.5px; color: var(--text-muted); }
.promo-pill { display: inline-flex; align-items: center; gap: 8px; background: rgba(var(--accent-rgb), 0.12); border: 1px dashed rgba(var(--accent-rgb), 0.55); border-radius: 10px; padding: 8px 14px; font-size: 13px; color: var(--accent); margin-top: 10px; }
.promo-pill code { background: transparent; color: var(--accent); font-weight: 800; letter-spacing: 1px; padding: 0; }

/* Stat / spec cards */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 40px; }
.spec-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 20px 16px; }
.spec-card .spec-label { font-size: 12px; color: var(--text-soft); margin-bottom: 8px; }
.spec-card .spec-value { font-size: 15px; font-weight: 700; color: var(--text-main); line-height: 1.4; }
.spec-note { font-size: 12px; color: var(--text-soft); text-align: center; margin: -26px 0 40px; }

.detail-block { max-width: 900px; margin: 0 auto 46px; }
.detail-block h2 { font-size: 22px; margin-bottom: 14px; color: var(--text-main); }
.detail-block p { font-size: 15.5px; color: var(--text-muted); margin-bottom: 14px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.pro-list, .caution-list { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 22px 24px; }
.pro-list h4, .caution-list h4 { font-size: 15px; margin-bottom: 12px; }
.pro-list h4 { color: var(--primary-bright); }
.caution-list h4 { color: var(--accent); }
.pro-list li, .caution-list li { font-size: 14px; color: var(--text-muted); margin-bottom: 9px; padding-left: 18px; position: relative; }
.pro-list li::before { content: "✓"; position: absolute; left: 0; color: var(--primary); font-weight: 800; }
.caution-list li::before { content: "!"; position: absolute; left: 2px; color: var(--accent); font-weight: 800; }

/* Pricing shop table */
.shop-wrap { max-width: 1000px; margin: 0 auto; overflow-x: auto; }
.shop-table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 760px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; overflow: hidden; }
.shop-table th, .shop-table td { padding: 16px 18px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.shop-table thead th { background: var(--bg-panel); color: var(--text-soft); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.shop-table tbody tr:last-child td { border-bottom: none; }
.shop-table tbody tr.is-reco { background: rgba(var(--primary-rgb), 0.06); }

/* Article / guide long-form */
.article-wrap { max-width: 800px; margin: 0 auto; padding: 50px 5% 84px; }
.breadcrumb { font-size: 13px; color: var(--text-soft); margin-bottom: 22px; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.article-wrap h1 { font-size: 30px; line-height: 1.42; margin-bottom: 14px; color: var(--text-main); }
.article-meta { font-size: 13px; color: var(--text-soft); margin-bottom: 30px; padding-bottom: 22px; border-bottom: 1px solid var(--border-color); display: flex; gap: 16px; flex-wrap: wrap; }
.summary-box { background: var(--bg-card); border-left: 4px solid var(--primary); border-radius: 10px; padding: 20px 24px; margin-bottom: 32px; font-size: 15px; color: var(--text-muted); }
.summary-box strong { color: var(--primary-bright); }
.article-body h2 { font-size: 21px; margin: 34px 0 14px; color: var(--text-main); }
.article-body h3 { font-size: 17px; margin: 24px 0 10px; color: var(--text-main); }
.article-body p { font-size: 15.5px; color: var(--text-muted); margin-bottom: 16px; }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 16px; color: var(--text-muted); }
.article-body li { margin-bottom: 7px; font-size: 15.5px; }
.article-body a { color: var(--primary); text-decoration: underline; }
.article-body table { width: 100%; border-collapse: collapse; margin: 18px 0 26px; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--border-color); padding: 9px 11px; text-align: left; }
.article-body th { background: var(--bg-panel); }
.inline-promo { background: var(--bg-card); border: 1px solid var(--border-color); border-left: 4px solid var(--accent); border-radius: 10px; padding: 22px 24px; margin: 34px 0; }
.inline-promo h4 { font-size: 16px; margin-bottom: 8px; color: var(--text-main); }
.inline-promo p { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; }
.related-links { margin-top: 40px; padding-top: 26px; border-top: 1px solid var(--border-color); }
.related-links h4 { font-size: 15px; margin-bottom: 12px; color: var(--text-soft); }
.related-links li { list-style: none; margin-bottom: 8px; }
.related-links a { color: var(--primary); font-weight: 600; font-size: 14.5px; }

/* Guides index page: full sections */
.guide-article { max-width: 880px; margin: 0 auto 54px; padding-top: 6px; scroll-margin-top: 90px; }
.guide-article h2 { font-size: 21px; margin-bottom: 12px; color: var(--text-main); }
.guide-article p { font-size: 15px; color: var(--text-muted); margin-bottom: 12px; }
.guide-article ul { padding-left: 20px; margin-bottom: 12px; color: var(--text-muted); }
.guide-article li { margin-bottom: 6px; font-size: 15px; }
.guide-index-nav { max-width: 880px; margin: 0 auto 50px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 22px 26px; }
.guide-index-nav h4 { font-size: 14px; color: var(--text-soft); margin-bottom: 12px; }
.guide-index-nav ol { padding-left: 20px; columns: 2; column-gap: 30px; }
.guide-index-nav li { font-size: 14px; margin-bottom: 8px; }
.guide-index-nav a { color: var(--primary-bright); }

/* Client download grid */
.client-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.client-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 22px 16px; text-align: center; transition: transform 0.2s, border-color 0.2s; }
.client-card:hover { transform: translateY(-3px); border-color: rgba(var(--primary-rgb), 0.35); }
.client-card .client-icon { font-size: 27px; margin-bottom: 10px; }
.client-card h4 { font-size: 15px; margin-bottom: 6px; }
.client-card .client-os { font-size: 11.5px; color: var(--text-soft); background: var(--bg-panel); display: inline-block; padding: 2px 9px; border-radius: 6px; margin-bottom: 10px; }
.client-card p { font-size: 12.5px; color: var(--text-muted); margin-bottom: 14px; min-height: 52px; }
.mirror-note { max-width: 800px; margin: 0 auto; background: var(--bg-card); border: 1px solid var(--border-color); border-left: 4px solid var(--accent); border-radius: 12px; padding: 20px 24px; font-size: 14px; color: var(--text-muted); }
.mirror-note strong { color: var(--accent); }

/* Subpage (about/terms/privacy/sitemap) */
.subpage-header { padding: 96px 5% 46px; text-align: center; border-bottom: 1px solid var(--border-color); background: radial-gradient(ellipse 700px 400px at 50% -20%, rgba(var(--primary-rgb), 0.10), transparent 70%); }
.subpage-header h1 { font-size: 30px; margin-bottom: 10px; color: var(--text-main); }
.subpage-header p { color: var(--text-muted); font-size: 15px; }
.subpage-content { padding: 54px 5%; max-width: 800px; margin: 0 auto; color: var(--text-muted); font-size: 15.5px; }
.subpage-content h2 { color: var(--text-main); margin: 30px 0 14px; font-size: 20px; }
.subpage-content p { margin-bottom: 15px; }
.subpage-content ul { padding-left: 20px; margin-bottom: 15px; list-style: disc; }
.subpage-content li { margin-bottom: 7px; }

/* Footer */
footer { border-top: 1px solid var(--border-color); padding: 52px 5% 34px; background: var(--bg-page-alt); color: var(--text-muted); text-align: center; }
.footer-logo { font-size: 18px; font-weight: 800; color: var(--text-main); margin-bottom: 22px; display: flex; align-items: center; justify-content: center; gap: 9px; }
.footer-links { display: flex; justify-content: center; gap: 30px; margin-bottom: 26px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); transition: color 0.2s; font-size: 14px; }
.footer-links a:hover { color: var(--primary); }
.footer-friends { margin-bottom: 20px; font-size: 13.5px; color: var(--text-soft); }
.footer-friends a { color: var(--text-soft); transition: color 0.2s; margin: 0 8px; }
.footer-friends a:hover { color: var(--primary); }
.footer-disclosure { font-size: 12px; color: var(--text-soft); max-width: 720px; margin: 0 auto 18px; line-height: 1.6; }
.footer-copy { color: var(--text-soft); font-size: 12.5px; }

/* Mobile */
@media (max-width: 980px) {
    .nav-tiles { grid-template-columns: repeat(2, 1fr); }
    .pick-grid { grid-template-columns: 1fr; }
    .guide-grid { grid-template-columns: repeat(2, 1fr); }
    .client-grid { grid-template-columns: repeat(2, 1fr); }
    .teaser-row { grid-template-columns: 1fr; }
    .spec-grid { grid-template-columns: repeat(2, 1fr); }
    .two-col { grid-template-columns: 1fr; }
    .guide-index-nav ol { columns: 1; }
}
@media (max-width: 768px) {
    .nav-menu-wrapper { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; width: 100%; background: var(--bg-page); padding: 22px 20px; border-bottom: 1px solid var(--border-color); gap: 16px; }
    .nav-menu-wrapper.active { display: flex; }
    .menu-toggle { display: block; }
    .nav-links { flex-direction: column; gap: 14px; text-align: center; width: 100%; }
    .hero h1 { font-size: 27px; }
    .hero p { font-size: 15px; }
    .nav-tiles { grid-template-columns: 1fr 1fr; margin-top: -24px; }
    .guide-grid { grid-template-columns: 1fr; }
    .client-grid { grid-template-columns: repeat(2, 1fr); }
    section { padding: 46px 5%; }
    .article-wrap h1 { font-size: 24px; }
    .footer-links { gap: 14px; flex-direction: column; }
    .spec-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 400px) {
    .quick-access, .spec-grid { grid-template-columns: 1fr; }
    .client-grid { grid-template-columns: 1fr; }
}