:root {
    --bg: #0B1410;
    --bg-soft: #101a14;
    --surface: #17231c;
    --surface-2: #1d2b23;
    --green: #22C55E;
    --green-dark: #16a34a;
    --green-light: #86EFAC;
    --slate: #334155;
    --white: #FFFFFF;
    --text: #edf7f0;
    --muted: #a8b8ae;
    --border: rgba(134, 239, 172, .16);
    --shadow: 0 18px 54px rgba(0, 0, 0, .28);
    --radius: 8px;
    --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; font-size: 16px; line-height: 1.7; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.25; letter-spacing: 0; }
p { color: var(--muted); }
:focus-visible { outline: 3px solid var(--green-light); outline-offset: 3px; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 10px 16px; background: var(--white); color: var(--bg); border-radius: 4px; font-weight: 700; }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; height: 76px; border-bottom: 1px solid rgba(255,255,255,.07); background: rgba(11,20,16,.92); transition: box-shadow .2s ease, background .2s ease; }
.site-header.is-scrolled { background: rgba(11,20,16,.98); box-shadow: 0 8px 30px rgba(0,0,0,.22); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.site-brand { min-width: 224px; display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 42px; border-radius: 8px; background: var(--green); color: #07130b; font-size: 22px; font-weight: 900; box-shadow: 0 7px 20px rgba(34,197,94,.22); }
.brand-copy { display: flex; flex-direction: column; line-height: 1.2; }
.brand-copy strong { color: var(--white); font-size: 16px; }
.brand-copy small { margin-top: 4px; color: var(--green-light); font-size: 12px; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.site-nav a { position: relative; min-height: 44px; display: inline-flex; align-items: center; padding: 0 13px; color: #c5d2ca; font-size: 14px; font-weight: 600; transition: color .2s ease, background .2s ease; }
.site-nav a:hover, .site-nav a.is-active { color: var(--white); background: rgba(134,239,172,.07); }
.site-nav a.is-active::after { content: ""; position: absolute; left: 13px; right: 13px; bottom: 3px; height: 2px; background: var(--green); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 6px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 19px; height: 2px; margin: 4px auto; background: var(--white); transition: transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 0 22px; border: 1px solid transparent; border-radius: 6px; cursor: pointer; font-weight: 700; line-height: 1.2; transition: transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--green); color: #07140b; box-shadow: 0 10px 28px rgba(34,197,94,.2); }
.button-primary:hover { background: var(--green-light); }
.button-secondary { border-color: rgba(255,255,255,.28); background: rgba(11,20,16,.62); color: var(--white); }
.button-secondary:hover, .button-outline:hover { border-color: var(--green); color: var(--green-light); }
.button-outline { width: 100%; border-color: rgba(134,239,172,.23); color: var(--white); background: transparent; }
.button-small { min-height: 44px; padding: 0 17px; font-size: 14px; }
.button-full { width: 100%; }
.button-icon { font-size: 20px; line-height: 1; }
.header-download { margin-left: 4px; background: var(--green); color: #07140b; }

.hero { position: relative; min-height: 700px; padding-top: 76px; overflow: hidden; background: #0f2118; }
.hero-image, .hero-shade { position: absolute; inset: 76px 0 0; width: 100%; height: calc(100% - 76px); }
.hero-image { object-fit: cover; object-position: center; }
.hero-shade { background: linear-gradient(90deg, rgba(7,15,10,.96) 0%, rgba(7,15,10,.79) 40%, rgba(7,15,10,.30) 68%, rgba(7,15,10,.13) 100%); }
.hero-inner { position: relative; z-index: 2; min-height: 624px; display: grid; grid-template-columns: minmax(0, 1.08fr) 360px; align-items: center; gap: 92px; }
.hero-copy { max-width: 660px; padding: 58px 0; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--green-light); font-size: 13px; font-weight: 800; text-transform: uppercase; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(34,197,94,.14); }
.hero h1 { max-width: 630px; margin: 18px 0 22px; color: var(--white); font-size: clamp(38px, 5vw, 64px); }
.hero-lead { max-width: 600px; margin-bottom: 30px; color: #c4d3c9; font-size: 18px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin: 18px 0 0; color: #9fb2a6; font-size: 13px; }
.hero-note span { color: var(--green); }
.app-summary { border: 1px solid rgba(134,239,172,.25); border-radius: var(--radius); padding: 25px; background: rgba(17,29,23,.9); box-shadow: var(--shadow); }
.app-summary-head { display: flex; align-items: center; gap: 14px; padding-bottom: 21px; border-bottom: 1px solid var(--border); }
.app-summary-head .app-icon { display: grid; place-items: center; width: 62px; height: 62px; flex: 0 0 62px; border-radius: 8px; background: var(--green); color: #07140b; font-size: 28px; font-weight: 900; }
.app-summary-head div { display: flex; flex-direction: column; }
.app-summary-head strong { font-size: 20px; }
.app-summary-head span { color: var(--muted); font-size: 13px; }
.app-specs { margin: 17px 0 12px; }
.app-specs div { min-height: 39px; display: flex; align-items: center; justify-content: space-between; gap: 15px; border-bottom: 1px solid rgba(255,255,255,.06); }
.app-specs dt { color: var(--muted); font-size: 13px; }
.app-specs dd { margin: 0; color: var(--white); font-size: 13px; font-weight: 700; text-align: right; }
.demo-label { margin: 16px 0 0; padding: 8px 10px; border-left: 3px solid var(--green); background: rgba(34,197,94,.08); color: var(--green-light); font-size: 12px; }

.trust-strip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: #101b15; }
.trust-grid { min-height: 104px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; }
.trust-grid > div { min-width: 0; display: flex; align-items: center; gap: 13px; padding: 16px 24px; border-right: 1px solid var(--border); }
.trust-grid > div:first-child { padding-left: 0; }
.trust-grid > div:last-child { border-right: 0; }
.trust-icon { display: grid; place-items: center; width: 38px; height: 38px; flex: 0 0 38px; border: 1px solid rgba(134,239,172,.23); border-radius: 6px; color: var(--green); font-weight: 900; }
.trust-grid p { display: flex; flex-direction: column; margin: 0; }
.trust-grid strong { color: var(--white); font-size: 14px; }
.trust-grid small { overflow-wrap: anywhere; color: var(--muted); font-size: 12px; }

.section { padding: 92px 0; }
.section-muted { background: var(--bg-soft); }
.section h2 { margin: 13px 0 20px; color: var(--white); font-size: 34px; }
.section-copy > p { max-width: 650px; }
.intro-layout { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr); align-items: center; gap: 86px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--green-light); font-weight: 700; }
.text-link:hover { color: var(--white); }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }
.feature-panel { border-top: 1px solid var(--border); }
.feature-panel article { display: flex; gap: 20px; padding: 25px 0; border-bottom: 1px solid var(--border); }
.feature-number { color: var(--green); font-size: 13px; font-weight: 800; }
.feature-panel h3 { margin: 0 0 7px; font-size: 18px; }
.feature-panel p { margin: 0; font-size: 14px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 36px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 480px; margin: 0; text-align: right; }
.section-heading.compact { margin-bottom: 12px; }

.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.download-card { position: relative; display: flex; flex-direction: column; min-height: 340px; padding: 30px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); transition: transform .2s ease, border-color .2s ease; }
.download-card:hover { transform: translateY(-4px); border-color: rgba(134,239,172,.36); }
.download-card-primary { background: #193222; border-color: rgba(34,197,94,.5); }
.card-badge { position: absolute; top: 20px; right: 20px; padding: 4px 9px; border-radius: 4px; background: rgba(34,197,94,.13); color: var(--green-light); font-size: 11px; font-weight: 700; }
.download-card-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 27px; border: 1px solid rgba(134,239,172,.24); border-radius: 7px; background: rgba(34,197,94,.08); color: var(--green); font-size: 23px; font-weight: 800; }
.download-card h3 { margin-bottom: 12px; font-size: 20px; }
.download-card p { flex: 1; margin-bottom: 24px; font-size: 14px; }

.steps-grid { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 0; padding: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.step-card { min-height: 268px; padding: 34px; border-right: 1px solid var(--border); background: var(--surface); }
.step-card:last-child { border-right: 0; }
.step-card > span { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 32px; border-radius: 6px; background: var(--green); color: #07140b; font-weight: 900; }
.step-card h3 { font-size: 19px; }
.step-card p { margin: 0; font-size: 14px; }
.mobile-link { display: none; margin-top: 24px; }

.content-columns { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(320px, .75fr); gap: 70px; }
.article-list { border-top: 1px solid var(--border); }
.article-row { display: grid; grid-template-columns: 48px 1fr; gap: 15px; padding: 28px 0; border-bottom: 1px solid var(--border); }
.article-index { color: var(--green); font-size: 13px; font-weight: 800; }
.article-meta { color: #82948a; font-size: 12px; }
.article-row h3 { margin: 7px 0 9px; font-size: 19px; }
.article-row h3 a:hover { color: var(--green-light); }
.article-row p { margin: 0; font-size: 14px; }
.news-panel { align-self: start; padding: 29px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.news-panel h2 { margin-bottom: 24px; font-size: 24px; }
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li { display: grid; grid-template-columns: 46px 1fr; gap: 12px; padding: 15px 0; border-top: 1px solid var(--border); }
.news-list time { color: var(--green); font-size: 12px; font-weight: 700; }
.news-list a { color: #dce8e0; font-size: 14px; line-height: 1.55; }
.news-list a:hover { color: var(--green-light); }
.editor-note { margin-top: 22px; padding: 17px; border-left: 3px solid var(--slate); background: rgba(51,65,85,.18); }
.editor-note strong { font-size: 13px; }
.editor-note p { margin: 5px 0 0; font-size: 12px; }

.download-cta { padding: 68px 0; border-top: 1px solid rgba(134,239,172,.18); border-bottom: 1px solid rgba(134,239,172,.18); background: #142a1c; }
.download-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.download-cta h2 { margin: 10px 0 9px; font-size: 30px; }
.download-cta p { max-width: 700px; margin: 0; }
.download-cta .button { flex: 0 0 auto; }

.site-footer { padding-top: 66px; background: #08100c; }
.footer-grid { display: grid; grid-template-columns: 1.6fr .8fr 1fr 1.1fr; gap: 54px; padding-bottom: 54px; }
.site-brand-footer { min-width: 0; margin-bottom: 18px; }
.footer-about p { max-width: 360px; margin: 0; font-size: 13px; }
.footer-column { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-column h2 { margin: 0 0 11px; color: var(--white); font-size: 15px; }
.footer-column a, .footer-column p { color: var(--muted); font-size: 13px; }
.footer-column a:hover { color: var(--green-light); }
.footer-contact p { margin: 0 0 8px; }
.footer-contact .text-link { color: var(--green-light); font-weight: 700; }
.footer-bottom { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border-top: 1px solid rgba(255,255,255,.08); }
.footer-bottom p, .footer-bottom a { margin: 0; color: #718077; font-size: 12px; }
.back-to-top { position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 46px; height: 46px; border: 1px solid rgba(134,239,172,.3); border-radius: 6px; background: #183322; color: var(--green-light); font-size: 21px; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity .2s ease, transform .2s ease, visibility .2s; }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--green); color: #07140b; }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .38s ease, transform .38s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Shared category pages */
.page-hero { padding: 148px 0 70px; border-bottom: 1px solid var(--border); background: #0e1d15; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 25px; color: #84968b; font-size: 13px; }
.breadcrumb a:hover { color: var(--green-light); }
.breadcrumb span[aria-hidden="true"] { color: #526158; }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; align-items: end; gap: 70px; }
.page-hero h1 { max-width: 760px; margin: 13px 0 19px; color: var(--white); font-size: 44px; }
.page-hero-copy > p { max-width: 720px; margin: 0; font-size: 17px; }
.page-meta-panel { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.page-meta-panel dl { margin: 0; }
.page-meta-panel div { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.page-meta-panel div:last-child { border-bottom: 0; }
.page-meta-panel dt { color: var(--muted); font-size: 13px; }
.page-meta-panel dd { margin: 0; color: var(--white); font-size: 13px; font-weight: 700; text-align: right; }
.category-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 42px; }
.category-main h2, .category-sidebar h2 { margin: 0 0 22px; color: var(--white); }
.category-main h2 { font-size: 28px; }
.category-sidebar h2 { font-size: 18px; }
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.info-card { min-height: 210px; padding: 25px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.info-card-number { display: inline-block; margin-bottom: 25px; color: var(--green); font-size: 13px; font-weight: 800; }
.info-card h2, .info-card h3 { margin: 0 0 10px; color: var(--white); font-size: 19px; }
.info-card p { margin: 0; font-size: 14px; }
.info-card .text-link { margin-top: 18px; font-size: 14px; }
.content-block { margin-top: 48px; padding-top: 42px; border-top: 1px solid var(--border); }
.content-block > p { max-width: 800px; }
.check-list { list-style: none; display: grid; gap: 12px; margin: 22px 0 0; padding: 0; }
.check-list li { position: relative; padding: 15px 18px 15px 49px; border: 1px solid var(--border); border-radius: 6px; background: rgba(23,35,28,.68); color: #cbd8cf; }
.check-list li::before { content: "✓"; position: absolute; left: 18px; top: 15px; color: var(--green); font-weight: 900; }
.category-sidebar { align-self: start; position: sticky; top: 104px; }
.sidebar-box { margin-bottom: 18px; padding: 23px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.sidebar-links { display: grid; gap: 2px; }
.sidebar-links a { display: flex; justify-content: space-between; gap: 15px; padding: 12px 0; border-bottom: 1px solid var(--border); color: #cbd8cf; font-size: 14px; }
.sidebar-links a:last-child { border-bottom: 0; }
.sidebar-links a:hover, .sidebar-links a[aria-current="page"] { color: var(--green-light); }
.sidebar-note { margin: 0; font-size: 13px; }
.version-table { width: 100%; border-collapse: collapse; border: 1px solid var(--border); background: var(--surface); }
.version-table th, .version-table td { padding: 15px 18px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
.version-table th { width: 32%; color: var(--muted); font-weight: 500; }
.version-table td { color: var(--white); }
.version-table tr:last-child th, .version-table tr:last-child td { border-bottom: 0; }
.article-cards { display: grid; gap: 15px; }
.article-card { display: grid; grid-template-columns: 92px 1fr; gap: 20px; align-items: center; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.article-card-mark { display: grid; place-items: center; width: 92px; height: 76px; border-radius: 6px; background: #193222; color: var(--green); font-size: 24px; font-weight: 900; }
.article-card h2, .article-card h3 { margin: 4px 0 7px; font-size: 18px; }
.article-card h2 a:hover, .article-card h3 a:hover { color: var(--green-light); }
.article-card p { margin: 0; font-size: 13px; }
.article-card .article-meta { display: block; }

/* APK landing page */
.landing-hero { padding: 138px 0 74px; border-bottom: 1px solid var(--border); background: #0e1d15; }
.landing-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 380px; align-items: center; gap: 76px; }
.landing-hero h1 { max-width: 780px; margin: 15px 0 20px; font-size: 46px; }
.landing-lead { max-width: 760px; margin-bottom: 28px; font-size: 17px; }
.landing-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.release-card { padding: 27px; border: 1px solid rgba(34,197,94,.42); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.release-status { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 20px; color: var(--green-light); font-size: 13px; font-weight: 800; }
.release-status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(34,197,94,.12); }
.release-card h2 { margin: 0 0 12px; font-size: 23px; }
.release-card > p { margin: 0 0 20px; font-size: 13px; }
.release-list { margin: 0; }
.release-list div { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-top: 1px solid var(--border); }
.release-list dt { color: var(--muted); font-size: 13px; }
.release-list dd { margin: 0; color: var(--white); font-size: 13px; font-weight: 700; text-align: right; }
.anchor-nav { position: sticky; top: 76px; z-index: 20; border-bottom: 1px solid var(--border); background: rgba(11,20,16,.96); }
.anchor-nav-inner { min-height: 58px; display: flex; align-items: center; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.anchor-nav-inner::-webkit-scrollbar { display: none; }
.anchor-nav a { min-height: 42px; display: inline-flex; align-items: center; flex: 0 0 auto; padding: 0 15px; border-radius: 5px; color: #b9c8be; font-size: 13px; font-weight: 700; }
.anchor-nav a:hover { color: var(--green-light); background: rgba(34,197,94,.08); }
.landing-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 48px; }
.landing-article { min-width: 0; }
.landing-section { padding: 0 0 54px; margin-bottom: 54px; border-bottom: 1px solid var(--border); }
.landing-section:last-child { margin-bottom: 0; border-bottom: 0; }
.landing-section h2 { margin: 12px 0 22px; font-size: 30px; }
.landing-section h3 { margin: 28px 0 10px; font-size: 19px; }
.landing-section p { max-width: 850px; }
.landing-section p:last-child { margin-bottom: 0; }
.download-state { display: grid; grid-template-columns: 54px 1fr; gap: 18px; margin: 25px 0; padding: 22px; border: 1px solid rgba(34,197,94,.3); border-radius: var(--radius); background: #183322; }
.download-state-mark { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 7px; background: var(--green); color: #07140b; font-size: 24px; font-weight: 900; }
.download-state h3 { margin: 0 0 5px; font-size: 18px; }
.download-state p { margin: 0; font-size: 13px; }
.numbered-guide { list-style: none; display: grid; gap: 14px; margin: 25px 0 0; padding: 0; }
.numbered-guide li { display: grid; grid-template-columns: 44px 1fr; gap: 17px; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.numbered-guide > li > span { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 6px; background: rgba(34,197,94,.12); color: var(--green); font-weight: 900; }
.numbered-guide h3 { margin: 0 0 6px; font-size: 17px; }
.numbered-guide p { margin: 0; font-size: 14px; }
.notice-box { margin: 24px 0; padding: 20px 22px; border-left: 3px solid var(--green); background: rgba(34,197,94,.07); }
.notice-box strong { display: block; margin-bottom: 5px; color: var(--white); }
.notice-box p { margin: 0; font-size: 14px; }
.faq-list { display: grid; gap: 11px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.faq-item summary { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 13px 20px; cursor: pointer; color: var(--white); font-weight: 700; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; flex: 0 0 auto; color: var(--green); font-size: 22px; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 20px 19px; font-size: 14px; }
.landing-sidebar { align-self: start; position: sticky; top: 158px; }
.landing-sidebar .sidebar-box:first-child { border-color: rgba(34,197,94,.32); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.related-item { padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.related-item span { color: var(--green); font-size: 12px; font-weight: 800; }
.related-item h3 { margin: 9px 0 8px; font-size: 17px; }
.related-item p { margin: 0; font-size: 13px; }
.related-item:hover { border-color: rgba(134,239,172,.34); }

/* Editorial article pages */
.article-hero { padding: 132px 0 64px; border-bottom: 1px solid var(--border); background: #0e1d15; }
.article-hero-inner { max-width: 900px; }
.article-hero h1 { margin: 16px 0 20px; color: var(--white); font-size: 44px; }
.article-summary { max-width: 820px; margin-bottom: 22px; color: #bdccc2; font-size: 17px; }
.article-byline { display: flex; flex-wrap: wrap; gap: 10px 22px; color: #82948a; font-size: 13px; }
.article-page-layout { display: grid; grid-template-columns: minmax(0, 790px) 300px; justify-content: space-between; gap: 54px; }
.article-body { min-width: 0; }
.article-body > p { margin-bottom: 21px; color: #bbc9c0; font-size: 16px; line-height: 1.95; }
.article-body h2 { margin: 47px 0 20px; padding-top: 5px; color: var(--white); font-size: 28px; }
.article-body h3 { margin: 30px 0 12px; color: var(--white); font-size: 19px; }
.article-body .lead { padding: 22px 24px; border-left: 3px solid var(--green); background: rgba(34,197,94,.07); color: #d2dfd6; }
.article-toc { margin: 30px 0 38px; padding: 22px 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.article-toc strong { display: block; margin-bottom: 12px; }
.article-toc ol { margin: 0; padding-left: 22px; color: var(--muted); }
.article-toc li { padding: 4px 0; }
.article-toc a:hover { color: var(--green-light); }
.editor-list { display: grid; gap: 12px; margin: 22px 0; padding: 0; list-style: none; }
.editor-list li { position: relative; padding: 17px 19px 17px 52px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: #c3d0c7; }
.editor-list li::before { position: absolute; left: 18px; top: 16px; color: var(--green); font-weight: 900; }
.editor-list li:nth-child(1)::before { content: "1"; }
.editor-list li:nth-child(2)::before { content: "2"; }
.editor-list li:nth-child(3)::before { content: "3"; }
.editor-list li:nth-child(4)::before { content: "4"; }
.editor-tip { margin: 28px 0; padding: 20px 22px; border: 1px solid rgba(134,239,172,.23); border-radius: var(--radius); background: #183322; }
.editor-tip strong { display: block; margin-bottom: 6px; color: var(--green-light); }
.editor-tip p { margin: 0; color: #bbc9c0; font-size: 14px; }
.article-conclusion { margin-top: 45px; padding: 25px; border-top: 2px solid var(--green); background: var(--surface); }
.article-conclusion h2 { margin-top: 0; }
.article-conclusion p:last-child { margin-bottom: 0; }
.article-sidebar { align-self: start; position: sticky; top: 104px; }
.article-sidebar .sidebar-box { margin-bottom: 18px; }
.article-side-meta { display: grid; gap: 10px; margin: 0; }
.article-side-meta div { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.article-side-meta div:last-child { padding-bottom: 0; border-bottom: 0; }
.article-side-meta dt { color: var(--muted); font-size: 13px; }
.article-side-meta dd { margin: 0; color: var(--white); font-size: 13px; font-weight: 700; }
.article-related { margin-top: 54px; padding-top: 42px; border-top: 1px solid var(--border); }
.article-related h2 { margin: 0 0 23px; font-size: 24px; }
.article-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.article-related-grid a { min-height: 142px; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.article-related-grid a:hover { border-color: rgba(134,239,172,.36); }
.article-related-grid span { color: var(--green); font-size: 12px; font-weight: 800; }
.article-related-grid strong { display: block; margin-top: 9px; font-size: 16px; line-height: 1.55; }

@media (max-width: 820px) {
    .article-hero { padding: 112px 0 52px; }
    .article-hero h1 { font-size: 37px; }
    .article-page-layout { grid-template-columns: 1fr; gap: 42px; }
    .article-sidebar { position: static; }
}

@media (max-width: 560px) {
    .article-hero { padding: 102px 0 44px; }
    .article-hero h1 { font-size: 31px; overflow-wrap: anywhere; }
    .article-summary { font-size: 15px; }
    .article-body > p { font-size: 15px; }
    .article-body h2 { font-size: 25px; }
    .article-related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
    .landing-hero { padding: 116px 0 58px; }
    .landing-hero-grid, .landing-layout { grid-template-columns: 1fr; gap: 40px; }
    .landing-hero h1 { font-size: 38px; }
    .release-card { display: none; }
    .anchor-nav { top: 68px; }
    .landing-sidebar { position: static; }
    .related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .landing-hero { padding: 104px 0 48px; }
    .landing-hero h1 { font-size: 31px; overflow-wrap: anywhere; }
    .landing-lead { font-size: 15px; }
    .landing-actions { flex-direction: column; }
    .landing-actions .button { width: 100%; }
    .landing-section { padding-bottom: 42px; margin-bottom: 42px; }
    .landing-section h2 { font-size: 27px; }
    .download-state { grid-template-columns: 1fr; }
    .numbered-guide li { grid-template-columns: 40px 1fr; padding: 17px; }
    .numbered-guide > li > span { width: 40px; height: 40px; }
}

@media (max-width: 820px) {
    .page-hero { padding: 116px 0 56px; }
    .page-hero-grid, .category-layout { grid-template-columns: 1fr; gap: 38px; }
    .page-hero h1 { font-size: 37px; }
    .page-meta-panel { display: none; }
    .category-sidebar { position: static; }
}

@media (max-width: 560px) {
    .page-hero { padding: 104px 0 46px; }
    .page-hero h1 { font-size: 31px; overflow-wrap: anywhere; }
    .page-hero-copy > p { font-size: 15px; }
    .info-grid { grid-template-columns: 1fr; }
    .article-card { grid-template-columns: 62px 1fr; gap: 15px; padding: 18px; }
    .article-card-mark { width: 62px; height: 62px; font-size: 19px; }
    .version-table th, .version-table td { padding: 13px 12px; }
}

@media (max-width: 1024px) {
    .site-brand { min-width: 206px; }
    .header-download { display: none; }
    .site-nav a { padding-inline: 10px; }
    .hero-inner { grid-template-columns: minmax(0, 1fr) 320px; gap: 44px; }
    .hero h1 { font-size: 48px; }
    .trust-grid > div { padding-inline: 16px; }
    .intro-layout { gap: 48px; }
    .content-columns { gap: 38px; }
    .footer-grid { grid-template-columns: 1.4fr .8fr 1fr; }
    .footer-contact { grid-column: 1 / -1; padding-top: 25px; border-top: 1px solid var(--border); }
}

@media (max-width: 820px) {
    .site-header { height: 68px; }
    .header-inner { justify-content: space-between; }
    .menu-toggle { display: block; order: 3; }
    .site-nav { position: fixed; top: 68px; left: 0; right: 0; display: block; padding: 10px 20px 24px; border-bottom: 1px solid var(--border); background: #0b1410; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s ease, visibility .2s ease, transform .2s ease; }
    .site-nav.is-open { opacity: 1; visibility: visible; transform: none; }
    .site-nav a { width: 100%; min-height: 52px; padding: 0 8px; border-bottom: 1px solid rgba(255,255,255,.06); }
    .site-nav a.is-active::after { left: 8px; right: auto; width: 28px; }
    .hero { min-height: auto; padding-top: 68px; }
    .hero-image, .hero-shade { inset: 68px 0 0; height: calc(100% - 68px); }
    .hero-image { object-position: 68% center; }
    .hero-shade { background: linear-gradient(90deg, rgba(7,15,10,.97), rgba(7,15,10,.76)); }
    .hero-inner { min-height: 660px; grid-template-columns: 1fr; gap: 0; padding-top: 50px; padding-bottom: 50px; }
    .hero-copy { padding: 0; }
    .hero h1 { font-size: 43px; }
    .app-summary { display: none; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-grid > div { padding: 18px 14px; border-bottom: 1px solid var(--border); }
    .trust-grid > div:nth-child(2) { border-right: 0; }
    .trust-grid > div:nth-child(n+3) { border-bottom: 0; }
    .section { padding: 72px 0; }
    .intro-layout, .content-columns { grid-template-columns: 1fr; gap: 46px; }
    .download-grid { grid-template-columns: 1fr; }
    .download-card { min-height: 0; }
    .steps-grid { grid-template-columns: 1fr; }
    .step-card { min-height: 0; border-right: 0; border-bottom: 1px solid var(--border); }
    .step-card:last-child { border-bottom: 0; }
    .section-heading > p { display: none; }
    .download-cta-inner { align-items: flex-start; flex-direction: column; gap: 28px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-about { grid-column: 1 / -1; }
    .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
    .container { width: min(calc(100% - 30px), var(--container)); }
    .brand-copy strong { font-size: 15px; }
    .brand-mark { width: 38px; height: 38px; flex-basis: 38px; font-size: 20px; }
    .hero-inner { min-height: 610px; }
    .hero h1 { font-size: 36px; overflow-wrap: anywhere; }
    .hero-lead { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .button { width: 100%; }
    .trust-grid { grid-template-columns: 1fr; }
    .trust-grid > div { padding: 15px 0; border-right: 0; border-bottom: 1px solid var(--border); }
    .trust-grid > div:nth-child(2), .trust-grid > div:nth-child(3) { border-bottom: 1px solid var(--border); }
    .section { padding: 58px 0; }
    .section h2 { font-size: 28px; }
    .section-heading { align-items: flex-start; margin-bottom: 28px; }
    .desktop-link { display: none; }
    .mobile-link { display: inline-flex; }
    .download-card, .step-card, .news-panel { padding: 24px; }
    .article-row { grid-template-columns: 35px 1fr; }
    .download-cta { padding: 52px 0; }
    .download-cta h2 { font-size: 27px; }
    .download-cta .button { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .footer-about, .footer-contact { grid-column: auto; }
    .footer-bottom { min-height: 90px; align-items: flex-start; justify-content: center; flex-direction: column; gap: 5px; padding: 20px 0; }
    .back-to-top { right: 15px; bottom: 15px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    .reveal { opacity: 1; transform: none; }
}