/* =========================================================
   欧易2 — Neon Forge / Deep Space Theme
   Base: #060b14 | Blue: #3b82f6 | Cyan: #06b6d4 | Gold: #f59e0b
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #060b14;
  --bg2: #0d1526;
  --bg3: #111e35;
  --blue: #3b82f6;
  --blue-d: #1d4ed8;
  --cyan: #06b6d4;
  --gold: #f59e0b;
  --gold-d: #d97706;
  --green: #10b981;
  --rose: #f43f5e;
  --violet: #8b5cf6;
  --text: #f1f5f9;
  --text2: #94a3b8;
  --text3: #64748b;
  --border: rgba(59,130,246,0.15);
  --border2: rgba(255,255,255,0.07);
  --card-bg: rgba(13,21,38,0.85);
  --r: 12px;
  --r2: 8px;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; font-size: 16px; line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { cursor: pointer; font-family: inherit; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes glow { 0%,100% { box-shadow: 0 0 20px rgba(59,130,246,0.3); } 50% { box-shadow: 0 0 40px rgba(59,130,246,0.6), 0 0 80px rgba(6,182,212,0.2); } }
@keyframes gradientShift { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── Utilities ── */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.wrap-lg { max-width: 1400px; margin: 0 auto; padding: 0 24px; }
.sec { padding: 80px 0; }
.sec-sm { padding: 48px 0; }
.sec-dark { background: var(--bg); }
.sec-dark2 { background: var(--bg2); }
.sec-dark3 { background: var(--bg3); }
.hl { background: linear-gradient(135deg, var(--blue), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hl2 { background: linear-gradient(135deg, var(--gold), var(--rose)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hl3 { background: linear-gradient(135deg, var(--cyan), var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ── Section Head ── */
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; padding: 5px 14px; border-radius: 100px; margin-bottom: 16px; }
.ey-blue { background: rgba(59,130,246,0.12); color: var(--blue); border: 1px solid rgba(59,130,246,0.25); }
.ey-cyan { background: rgba(6,182,212,0.12); color: var(--cyan); border: 1px solid rgba(6,182,212,0.25); }
.ey-gold { background: rgba(245,158,11,0.12); color: var(--gold); border: 1px solid rgba(245,158,11,0.25); }
.ey-green { background: rgba(16,185,129,0.12); color: var(--green); border: 1px solid rgba(16,185,129,0.25); }
.ey-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.ey-blue .ey-dot { background: var(--blue); }
.ey-cyan .ey-dot { background: var(--cyan); }
.ey-gold .ey-dot { background: var(--gold); }
.ey-green .ey-dot { background: var(--green); }
.sec-title { font-size: clamp(28px, 4vw, 42px); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.sec-sub { font-size: 17px; color: var(--text2); max-width: 620px; margin: 0 auto; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: var(--r2); font-size: 15px; font-weight: 600; border: none; transition: all 0.2s; white-space: nowrap; }
.btn-lg { padding: 15px 36px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-blue { background: linear-gradient(135deg, var(--blue), #1d6cf8); color: #fff; box-shadow: 0 4px 20px rgba(59,130,246,0.4); }
.btn-blue:hover { box-shadow: 0 6px 30px rgba(59,130,246,0.6); transform: translateY(-1px); }
.btn-cyan { background: linear-gradient(135deg, var(--cyan), #0891b2); color: #fff; box-shadow: 0 4px 20px rgba(6,182,212,0.35); }
.btn-cyan:hover { box-shadow: 0 6px 30px rgba(6,182,212,0.55); transform: translateY(-1px); }
.btn-gold { background: linear-gradient(135deg, var(--gold), var(--gold-d)); color: #0a0e1a; font-weight: 700; box-shadow: 0 4px 20px rgba(245,158,11,0.35); }
.btn-gold:hover { box-shadow: 0 6px 30px rgba(245,158,11,0.55); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--blue); border: 1.5px solid var(--blue); }
.btn-outline:hover { background: rgba(59,130,246,0.1); }
.btn-outline-w { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.3); }
.btn-outline-w:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.5); }
.btn-ghost { background: rgba(59,130,246,0.08); color: var(--blue); border: 1px solid rgba(59,130,246,0.2); }
.btn-ghost:hover { background: rgba(59,130,246,0.15); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

/* ── Navigation ── */
.site-nav { position: sticky; top: 0; z-index: 999; background: rgba(6,11,20,0.9); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border2); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand-icon { width: 32px; height: 32px; }
.nav-brand-name { font-size: 20px; font-weight: 800; background: linear-gradient(135deg, var(--blue), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: -0.02em; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 7px 16px; border-radius: 100px; font-size: 14px; font-weight: 500; color: var(--text2); transition: all 0.2s; }
.nav-link:hover { color: var(--text); background: var(--border2); }
.nav-link.active { color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-d)); font-weight: 600; }
.nav-dl { margin-left: 16px; }
.nav-toggle { display: none; background: none; border: none; color: var(--text); padding: 4px; }
.nav-mobile { display: none; background: var(--bg2); border-top: 1px solid var(--border2); }
.nav-mobile.show { display: block; }
.nav-mobile .nav-link { display: block; padding: 12px 24px; border-radius: 0; border-bottom: 1px solid var(--border2); }
.nav-mobile .nav-dl { margin: 12px 24px; display: block; }

/* ── Hero ── */
.hero { position: relative; overflow: hidden; background: radial-gradient(ellipse 120% 80% at 60% 40%, rgba(59,130,246,0.12) 0%, transparent 60%), radial-gradient(ellipse 80% 60% at 20% 80%, rgba(6,182,212,0.08) 0%, transparent 50%), var(--bg); padding: 100px 0 80px; min-height: 640px; }
.hero::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='30' cy='30' r='0.8' fill='rgba(255,255,255,0.06)'/%3E%3C/svg%3E") repeat; pointer-events: none; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(59,130,246,0.12); border: 1px solid rgba(59,130,246,0.3); color: var(--cyan); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 14px; border-radius: 100px; margin-bottom: 20px; }
.hero-eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); animation: pulse 2s infinite; }
.hero-h1 { font-size: clamp(32px, 5vw, 54px); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 20px; }
.hero-p { font-size: 18px; color: var(--text2); line-height: 1.7; margin-bottom: 32px; max-width: 480px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-badges { display: flex; gap: 20px; flex-wrap: wrap; }
.hero-badge { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text2); }
.hero-badge-icon { width: 18px; height: 18px; color: var(--green); }

/* Hero Visual — Trading Dashboard Card */
.hero-vis { position: relative; }
.hero-card { background: linear-gradient(145deg, rgba(13,21,38,0.95), rgba(17,30,53,0.9)); border: 1px solid rgba(59,130,246,0.2); border-radius: 16px; padding: 24px; backdrop-filter: blur(20px); animation: floatY 4s ease-in-out infinite; box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px rgba(59,130,246,0.1); }
.hc-topbar { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
.hc-dots { display: flex; gap: 5px; }
.hc-dot { width: 10px; height: 10px; border-radius: 50%; }
.hc-dot.r { background: #ef4444; }
.hc-dot.y { background: var(--gold); }
.hc-dot.g { background: var(--green); }
.hc-url { flex: 1; background: rgba(255,255,255,0.05); border-radius: 6px; padding: 4px 12px; font-size: 12px; color: var(--text3); border: 1px solid var(--border2); }
.hc-body { display: flex; flex-direction: column; gap: 16px; }
.hc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.hc-stat { background: rgba(59,130,246,0.06); border: 1px solid rgba(59,130,246,0.12); border-radius: 10px; padding: 14px; }
.hc-stat-lbl { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.hc-stat-num { font-size: 20px; font-weight: 700; }
.c-blue { color: var(--blue); }
.c-cyan { color: var(--cyan); }
.c-gold { color: var(--gold); }
.c-green { color: var(--green); }
.c-rose { color: var(--rose); }
.hc-chart { background: rgba(59,130,246,0.04); border: 1px solid rgba(59,130,246,0.1); border-radius: 10px; padding: 14px; }
.hc-chart-title { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px; }
.hc-bars { display: flex; flex-direction: column; gap: 8px; }
.hc-bar-row { display: flex; align-items: center; gap: 10px; }
.hc-bar-label { font-size: 11px; color: var(--text2); width: 60px; flex-shrink: 0; }
.hc-bar-track { flex: 1; height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
.hc-bar-fill { height: 100%; border-radius: 3px; }
.hbf-blue { background: linear-gradient(90deg, var(--blue), var(--cyan)); width: 78%; }
.hbf-cyan { background: linear-gradient(90deg, var(--cyan), var(--green)); width: 62%; }
.hbf-gold { background: linear-gradient(90deg, var(--gold), var(--rose)); width: 85%; }
.hbf-violet { background: linear-gradient(90deg, var(--violet), #ec4899); width: 55%; }
.hc-bar-val { font-size: 11px; color: var(--text2); width: 32px; text-align: right; flex-shrink: 0; }

/* ── Stats Ticker ── */
.stats-ticker { background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(6,182,212,0.06)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 28px 0; }
.stats-row { display: flex; justify-content: space-around; align-items: center; flex-wrap: wrap; gap: 24px; }
.stat-item { text-align: center; }
.stat-num { font-size: clamp(24px, 3.5vw, 36px); font-weight: 800; line-height: 1; margin-bottom: 4px; }
.stat-lbl { font-size: 13px; color: var(--text2); }

/* ── Feature Cards ── */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat-card { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 28px; position: relative; overflow: hidden; transition: all 0.25s; }
.feat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; border-radius: var(--r) var(--r) 0 0; transition: height 0.2s; }
.feat-card:hover { border-color: rgba(59,130,246,0.3); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.feat-card:hover::before { height: 4px; }
.fc-blue::before { background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.fc-cyan::before { background: linear-gradient(90deg, var(--cyan), var(--green)); }
.fc-gold::before { background: linear-gradient(90deg, var(--gold), var(--rose)); }
.fc-green::before { background: linear-gradient(90deg, var(--green), var(--cyan)); }
.fc-violet::before { background: linear-gradient(90deg, var(--violet), var(--blue)); }
.fc-rose::before { background: linear-gradient(90deg, var(--rose), var(--violet)); }
.feat-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.fi-blue { background: rgba(59,130,246,0.12); color: var(--blue); }
.fi-cyan { background: rgba(6,182,212,0.12); color: var(--cyan); }
.fi-gold { background: rgba(245,158,11,0.12); color: var(--gold); }
.fi-green { background: rgba(16,185,129,0.12); color: var(--green); }
.fi-violet { background: rgba(139,92,246,0.12); color: var(--violet); }
.fi-rose { background: rgba(244,63,94,0.12); color: var(--rose); }
.feat-name { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.feat-desc { font-size: 14px; color: var(--text2); line-height: 1.65; }

/* ── Platform Grid ── */
.plat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.plat-card { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 28px 20px; text-align: center; transition: all 0.25s; position: relative; }
.plat-card:hover { border-color: rgba(59,130,246,0.3); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.plat-card.featured { border-color: rgba(59,130,246,0.4); background: linear-gradient(145deg, rgba(59,130,246,0.06), rgba(6,182,212,0.04)); }
.plat-badge { position: absolute; top: -1px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff; font-size: 11px; font-weight: 600; padding: 3px 12px; border-radius: 0 0 8px 8px; white-space: nowrap; }
.plat-icon { width: 52px; height: 52px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: center; }
.plat-name { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.plat-ver { font-size: 12px; color: var(--text3); margin-bottom: 16px; }
.plat-desc { font-size: 13px; color: var(--text2); margin-bottom: 18px; }
.plat-btn { width: 100%; }

/* ── Feature Tabs ── */
.ftab-nav { display: flex; gap: 4px; background: rgba(255,255,255,0.04); border-radius: 10px; padding: 4px; margin-bottom: 40px; flex-wrap: wrap; }
.ftab-btn { flex: 1; padding: 10px 16px; border: none; background: transparent; color: var(--text2); font-size: 14px; font-weight: 500; border-radius: 8px; transition: all 0.2s; cursor: pointer; white-space: nowrap; min-width: 100px; }
.ftab-btn:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.ftab-btn.active { background: linear-gradient(135deg, var(--blue), var(--blue-d)); color: #fff; font-weight: 600; box-shadow: 0 2px 12px rgba(59,130,246,0.35); }
.ftab-panel { display: none; }
.ftab-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; animation: fadeUp 0.3s ease; }
.ftab-chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 100px; margin-bottom: 16px; }
.ftab-chip.fcc-blue { background: rgba(59,130,246,0.12); color: var(--blue); border: 1px solid rgba(59,130,246,0.2); }
.ftab-chip.fcc-cyan { background: rgba(6,182,212,0.12); color: var(--cyan); border: 1px solid rgba(6,182,212,0.2); }
.ftab-chip.fcc-gold { background: rgba(245,158,11,0.12); color: var(--gold); border: 1px solid rgba(245,158,11,0.2); }
.ftab-chip.fcc-green { background: rgba(16,185,129,0.12); color: var(--green); border: 1px solid rgba(16,185,129,0.2); }
.ftab-h3 { font-size: 26px; font-weight: 700; margin-bottom: 14px; }
.ftab-desc { font-size: 15px; color: var(--text2); line-height: 1.7; margin-bottom: 20px; }
.ftab-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.ftab-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text2); }
.ftld { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.ftld-blue { color: var(--blue); }
.ftld-cyan { color: var(--cyan); }
.ftld-gold { color: var(--gold); }
.ftld-green { color: var(--green); }
.ftab-visual { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 24px; }
.ftab-vis-title { font-size: 12px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.fv-bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.fv-bar-label { font-size: 12px; color: var(--text2); width: 80px; flex-shrink: 0; }
.fv-bar-track { flex: 1; height: 8px; background: rgba(255,255,255,0.06); border-radius: 4px; overflow: hidden; }
.fv-bar-fill { height: 100%; border-radius: 4px; }
.fvf-blue { background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.fvf-cyan { background: linear-gradient(90deg, var(--cyan), var(--green)); }
.fvf-gold { background: linear-gradient(90deg, var(--gold), var(--rose)); }
.fvf-violet { background: linear-gradient(90deg, var(--violet), var(--blue)); }
.fvf-green { background: linear-gradient(90deg, var(--green), var(--cyan)); }
.fv-bar-val { font-size: 12px; color: var(--text2); width: 36px; text-align: right; flex-shrink: 0; }
.fv-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
.fv-stat { background: rgba(255,255,255,0.03); border-radius: 8px; padding: 12px; text-align: center; }
.fv-stat-num { font-size: 20px; font-weight: 700; margin-bottom: 2px; }
.fv-stat-lbl { font-size: 11px; color: var(--text3); }

/* ── Deep Rows ── */
.deep-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 0; border-bottom: 1px solid var(--border2); }
.deep-row:last-child { border-bottom: none; }
.deep-row.flip { direction: rtl; }
.deep-row.flip > * { direction: ltr; }
.deep-chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 100px; margin-bottom: 14px; }
.dc-blue { background: rgba(59,130,246,0.1); color: var(--blue); }
.dc-cyan { background: rgba(6,182,212,0.1); color: var(--cyan); }
.dc-gold { background: rgba(245,158,11,0.1); color: var(--gold); }
.deep-h3 { font-size: 28px; font-weight: 700; margin-bottom: 14px; line-height: 1.25; }
.deep-desc { font-size: 15px; color: var(--text2); line-height: 1.7; margin-bottom: 20px; }
.deep-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.deep-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text2); }
.dl-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; margin-top: 7px; }
.dl-dot.blue { background: var(--blue); }
.dl-dot.cyan { background: var(--cyan); }
.dl-dot.gold { background: var(--gold); }
.deep-vis { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 24px; }
.dv-title { font-size: 12px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.dv-bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.dv-bar-label { font-size: 12px; color: var(--text2); width: 80px; flex-shrink: 0; }
.dv-bar-track { flex: 1; height: 8px; background: rgba(255,255,255,0.06); border-radius: 4px; overflow: hidden; }
.dv-bar-fill { height: 100%; border-radius: 4px; }
.dvbf-blue { background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.dvbf-cyan { background: linear-gradient(90deg, var(--cyan), var(--green)); }
.dvbf-gold { background: linear-gradient(90deg, var(--gold), var(--rose)); }
.dv-bar-val { font-size: 12px; color: var(--text2); width: 36px; text-align: right; flex-shrink: 0; }
.dv-stat-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-top: 16px; }
.dv-stat { background: rgba(255,255,255,0.03); border-radius: 8px; padding: 12px; text-align: center; }
.dv-stat-num { font-size: 18px; font-weight: 700; margin-bottom: 2px; }
.dv-stat-lbl { font-size: 11px; color: var(--text3); }

/* ── Reviews ── */
.rev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.rev-card { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 24px; transition: all 0.2s; }
.rev-card:hover { border-color: rgba(59,130,246,0.2); transform: translateY(-2px); }
.rev-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.rev-avatar { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 700; flex-shrink: 0; }
.av-blue { background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff; }
.av-cyan { background: linear-gradient(135deg, var(--cyan), var(--green)); color: #fff; }
.av-gold { background: linear-gradient(135deg, var(--gold), var(--rose)); color: #0a0e1a; }
.av-green { background: linear-gradient(135deg, var(--green), var(--cyan)); color: #fff; }
.av-violet { background: linear-gradient(135deg, var(--violet), var(--blue)); color: #fff; }
.av-rose { background: linear-gradient(135deg, var(--rose), var(--violet)); color: #fff; }
.rev-meta { flex: 1; }
.rev-name { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.rev-role { font-size: 12px; color: var(--text3); }
.rev-stars { display: flex; gap: 3px; margin-bottom: 10px; }
.rev-star { color: var(--gold); font-size: 14px; }
.rev-text { font-size: 14px; color: var(--text2); line-height: 1.65; }

/* ── Comparison Table ── */
.cmp-wrap { overflow-x: auto; }
.cmp-table { width: 100%; border-collapse: collapse; }
.cmp-table th, .cmp-table td { padding: 14px 18px; text-align: center; font-size: 14px; border-bottom: 1px solid var(--border2); }
.cmp-table th { background: rgba(59,130,246,0.08); color: var(--text); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; }
.cmp-table th:first-child, .cmp-table td:first-child { text-align: left; }
.cmp-table td { color: var(--text2); }
.cmp-table tr:hover td { background: rgba(255,255,255,0.02); }
.cmp-hl { background: rgba(59,130,246,0.06) !important; font-weight: 600; color: var(--blue) !important; }
.yes { color: var(--green); font-weight: 600; }
.no { color: var(--rose); }
.part { color: var(--gold); }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r2); overflow: hidden; transition: border-color 0.2s; }
.faq-item.open { border-color: rgba(59,130,246,0.3); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; cursor: pointer; font-size: 15px; font-weight: 600; gap: 12px; }
.faq-q:hover { background: rgba(255,255,255,0.02); }
.faq-chevron { width: 20px; height: 20px; flex-shrink: 0; color: var(--text3); transition: transform 0.2s; }
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--blue); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-a { max-height: 300px; }
.faq-a-inner { padding: 0 22px 18px; font-size: 14px; color: var(--text2); line-height: 1.7; }

/* ── CTA Banner ── */
.cta-banner { background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(6,182,212,0.1)), var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 80px 0; text-align: center; }
.cta-eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cyan); margin-bottom: 16px; }
.cta-h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin-bottom: 16px; }
.cta-p { font-size: 17px; color: var(--text2); max-width: 560px; margin: 0 auto 36px; }
.cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Download Page ── */
.dl-hero { background: radial-gradient(ellipse 100% 80% at 50% 30%, rgba(59,130,246,0.1) 0%, transparent 60%), var(--bg); padding: 80px 0 60px; text-align: center; }
.dl-hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.25); color: var(--green); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 100px; margin-bottom: 16px; }
.dl-hero-tag-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.dl-hero-h1 { font-size: clamp(30px, 4.5vw, 48px); font-weight: 800; margin-bottom: 14px; }
.dl-hero-sub { font-size: 17px; color: var(--text2); max-width: 560px; margin: 0 auto; }

/* Windows Main Card */
.dl-win-wrap { max-width: 680px; margin: 0 auto 48px; }
.dl-win-card { background: var(--card-bg); border: 1px solid rgba(59,130,246,0.3); border-radius: 16px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(59,130,246,0.08); }
.dl-win-top { background: linear-gradient(135deg, var(--blue), var(--blue-d), var(--cyan)); padding: 24px 28px; display: flex; align-items: center; gap: 18px; }
.dl-win-icon { width: 52px; height: 52px; background: rgba(255,255,255,0.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.dl-win-info { flex: 1; }
.dl-win-name { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.dl-win-meta { font-size: 13px; color: rgba(255,255,255,0.7); }
.dl-win-body { padding: 28px; }
.dl-specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.dl-spec { background: rgba(255,255,255,0.03); border: 1px solid var(--border2); border-radius: 8px; padding: 14px; }
.dl-spec-label { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.dl-spec-val { font-size: 14px; font-weight: 600; }
.dl-sec-badge { display: flex; align-items: center; gap: 8px; background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2); border-radius: 8px; padding: 10px 16px; margin-bottom: 20px; font-size: 13px; color: var(--green); }
.dl-win-btns { display: flex; gap: 12px; }

/* Other Platform Cards */
.op-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 60px; }
.op-card { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 28px; text-align: center; transition: all 0.25s; }
.op-card:hover { border-color: rgba(59,130,246,0.25); transform: translateY(-3px); }
.op-icon { width: 52px; height: 52px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: center; }
.op-name { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.op-ver { font-size: 12px; color: var(--text3); margin-bottom: 8px; }
.op-req { font-size: 12px; color: var(--text2); margin-bottom: 14px; }
.op-steps { list-style: none; text-align: left; margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.op-step { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--text2); }
.op-step-n { width: 20px; height: 20px; border-radius: 50%; background: rgba(59,130,246,0.15); color: var(--blue); font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.op-btn { width: 100%; }

/* Install Guide */
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.guide-col-title { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; margin-bottom: 24px; }
.guide-col-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.gcd-blue { background: var(--blue); }
.gcd-cyan { background: var(--cyan); }
.guide-steps { display: flex; flex-direction: column; gap: 0; }
.gstep { display: flex; gap: 16px; padding-bottom: 24px; position: relative; }
.gstep:last-child { padding-bottom: 0; }
.gstep-num-col { display: flex; flex-direction: column; align-items: center; }
.gstep-num { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.gsn-blue { background: linear-gradient(135deg, var(--blue), var(--blue-d)); color: #fff; }
.gsn-cyan { background: linear-gradient(135deg, var(--cyan), #0891b2); color: #fff; }
.gstep-line { width: 1px; flex: 1; background: var(--border2); margin: 4px 0; }
.gstep:last-child .gstep-line { display: none; }
.gstep-body { flex: 1; padding-top: 4px; }
.gstep-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.gstep-desc { font-size: 13px; color: var(--text2); line-height: 1.6; }

/* System Requirements */
.req-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.req-card { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r2); padding: 22px; }
.req-icon { width: 40px; height: 40px; margin-bottom: 12px; display: flex; align-items: center; justify-content: center; }
.req-title { font-size: 14px; font-weight: 600; margin-bottom: 10px; }
.req-val { font-size: 13px; color: var(--text2); line-height: 1.6; }

/* Version Timeline */
.ver-list { display: flex; flex-direction: column; gap: 0; }
.ver-item { display: flex; gap: 20px; padding-bottom: 28px; position: relative; }
.ver-item:last-child { padding-bottom: 0; }
.ver-dot-col { display: flex; flex-direction: column; align-items: center; }
.ver-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; margin-top: 4px; }
.vd-blue { background: var(--blue); box-shadow: 0 0 8px rgba(59,130,246,0.6); }
.vd-cyan { background: var(--cyan); box-shadow: 0 0 8px rgba(6,182,212,0.6); }
.vd-gold { background: var(--gold); box-shadow: 0 0 8px rgba(245,158,11,0.6); }
.vd-green { background: var(--green); box-shadow: 0 0 8px rgba(16,185,129,0.6); }
.vd-violet { background: var(--violet); box-shadow: 0 0 8px rgba(139,92,246,0.6); }
.ver-line { width: 1px; flex: 1; background: var(--border2); margin: 4px 0; }
.ver-item:last-child .ver-line { display: none; }
.ver-body { flex: 1; padding-top: 2px; }
.ver-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.ver-num { font-size: 15px; font-weight: 700; }
.ver-tag { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 4px; }
.vt-stable { background: rgba(16,185,129,0.12); color: var(--green); border: 1px solid rgba(16,185,129,0.2); }
.vt-lts { background: rgba(59,130,246,0.12); color: var(--blue); border: 1px solid rgba(59,130,246,0.2); }
.vt-beta { background: rgba(245,158,11,0.12); color: var(--gold); border: 1px solid rgba(245,158,11,0.2); }
.ver-date { font-size: 12px; color: var(--text3); }
.ver-desc { font-size: 13px; color: var(--text2); line-height: 1.6; margin-top: 4px; }

/* Security Banner */
.sec-banner { display: flex; align-items: flex-start; gap: 16px; background: rgba(16,185,129,0.06); border: 1px solid rgba(16,185,129,0.2); border-radius: var(--r); padding: 24px; }
.sec-banner-icon { width: 42px; height: 42px; background: rgba(16,185,129,0.12); color: var(--green); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sec-banner-text { flex: 1; }
.sec-banner-title { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.sec-banner-desc { font-size: 13px; color: var(--text2); line-height: 1.6; }

/* ── Article / SEO Page ── */
.art-hero { background: radial-gradient(ellipse 100% 70% at 50% 20%, rgba(59,130,246,0.1) 0%, transparent 60%), var(--bg2); padding: 72px 0 56px; }
.art-hero-inner { max-width: 820px; margin: 0 auto; padding: 0 24px; }
.art-hero-crumb { font-size: 13px; color: var(--text3); margin-bottom: 14px; }
.art-hero-crumb a { color: var(--blue); }
.art-hero-h1 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; margin-bottom: 14px; line-height: 1.2; }
.art-hero-sub { font-size: 17px; color: var(--text2); line-height: 1.7; }
.kw-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.kw { padding: 4px 12px; background: rgba(59,130,246,0.08); border: 1px solid rgba(59,130,246,0.15); border-radius: 100px; font-size: 12px; color: var(--blue); }

/* Article Layout */
.art-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.art-body h2 { font-size: 22px; font-weight: 700; margin: 40px 0 14px; padding-top: 16px; border-top: 1px solid var(--border2); }
.art-body h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.art-body h3 { font-size: 17px; font-weight: 600; margin: 24px 0 10px; color: var(--blue); }
.art-body p { font-size: 15px; color: var(--text2); line-height: 1.8; margin-bottom: 14px; }
.art-body ul, .art-body ol { padding-left: 20px; margin-bottom: 14px; }
.art-body li { font-size: 15px; color: var(--text2); line-height: 1.7; margin-bottom: 6px; }
.art-body strong { color: var(--text); }

/* Inline CTA */
.inline-cta { border-radius: var(--r); padding: 24px 28px; margin: 32px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.ic-blue { background: rgba(59,130,246,0.08); border: 1px solid rgba(59,130,246,0.2); }
.ic-cyan { background: rgba(6,182,212,0.08); border: 1px solid rgba(6,182,212,0.2); }
.ic-gold { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); }
.inline-cta-body { flex: 1; }
.inline-cta-title { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.inline-cta-desc { font-size: 13px; color: var(--text2); }

/* Tips Grid */
.tips-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }
.tip-card { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r2); padding: 18px; }
.tip-num { font-size: 28px; font-weight: 800; background: linear-gradient(135deg, var(--blue), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; margin-bottom: 8px; }
.tip-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.tip-desc { font-size: 13px; color: var(--text2); line-height: 1.6; }

/* Sidebar */
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 20px; }
.sbox { background: var(--card-bg); border: 1px solid var(--border2); border-radius: var(--r); padding: 22px; }
.sbox-title { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text3); margin-bottom: 14px; }
.sdl-btn { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 8px; border: 1px solid var(--border2); background: rgba(255,255,255,0.02); margin-bottom: 8px; cursor: pointer; transition: all 0.2s; font-family: inherit; text-align: left; color: var(--text); width: 100%; font-size: 14px; }
.sdl-btn:last-child { margin-bottom: 0; }
.sdl-btn:hover { background: rgba(59,130,246,0.06); border-color: rgba(59,130,246,0.2); }
.sdl-btn.primary { background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(6,182,212,0.1)); border-color: rgba(59,130,246,0.35); }
.sdl-btn-icon { width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sdl-btn-info { flex: 1; }
.sdl-btn-name { font-size: 13px; font-weight: 600; margin-bottom: 1px; }
.sdl-btn-ver { font-size: 11px; color: var(--text3); }
.stoc-item { display: flex; align-items: center; gap: 8px; padding: 7px 0; border-bottom: 1px solid var(--border2); font-size: 13px; color: var(--text2); cursor: pointer; transition: color 0.2s; }
.stoc-item:last-child { border-bottom: none; }
.stoc-item:hover { color: var(--blue); }
.stoc-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--text3); flex-shrink: 0; }
.sstat-item { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border2); font-size: 13px; }
.sstat-item:last-child { border-bottom: none; }
.sstat-lbl { color: var(--text2); }
.sstat-num { font-weight: 600; color: var(--blue); }
.side-security { background: rgba(16,185,129,0.06); border: 1px solid rgba(16,185,129,0.15); border-radius: 8px; padding: 14px; font-size: 12px; color: var(--text2); line-height: 1.6; }
.side-security strong { color: var(--green); }

/* Article Comparison Table */
.art-cmp-wrap { overflow-x: auto; margin: 16px 0 24px; }
.art-cmp-table { width: 100%; border-collapse: collapse; }
.art-cmp-table th, .art-cmp-table td { padding: 12px 16px; text-align: center; font-size: 13px; border-bottom: 1px solid var(--border2); }
.art-cmp-table th { background: rgba(59,130,246,0.08); color: var(--text); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.art-cmp-table th:first-child, .art-cmp-table td:first-child { text-align: left; }
.art-cmp-hl { background: rgba(59,130,246,0.05) !important; font-weight: 600; color: var(--cyan) !important; }

/* ── Footer ── */
.site-footer { background: var(--bg2); border-top: 1px solid var(--border2); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand-icon { width: 28px; height: 28px; }
.footer-brand-name { font-size: 16px; font-weight: 700; background: linear-gradient(135deg, var(--blue), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-security { font-size: 12px; color: var(--green); display: flex; align-items: center; gap: 6px; }
.footer-note { font-size: 11px; color: var(--text3); line-height: 1.6; max-width: 480px; }

/* ── News Cards ── */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--r); padding: 28px; display: flex; flex-direction: column; gap: 14px; transition: border-color 0.2s, transform 0.2s; }
.news-card:hover { border-color: var(--border); transform: translateY(-3px); }
.news-tag { display: inline-flex; align-items: center; font-size: 11px; font-weight: 700; letter-spacing: 0.05em; padding: 3px 10px; border-radius: 20px; width: fit-content; text-transform: uppercase; }
.news-tag-blue { background: rgba(59,130,246,0.15); color: var(--blue); }
.news-tag-gold { background: rgba(245,158,11,0.15); color: var(--gold); }
.news-tag-green { background: rgba(16,185,129,0.15); color: var(--green); }
.news-tag-cyan { background: rgba(6,182,212,0.15); color: var(--cyan); }
.news-title { font-size: 16px; font-weight: 700; line-height: 1.5; }
.news-title a { color: var(--text); transition: color 0.2s; }
.news-title a:hover { color: var(--blue); }
.news-excerpt { font-size: 14px; color: var(--text2); line-height: 1.7; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text3); margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border2); }
.news-read { color: var(--blue); font-weight: 600; transition: color 0.2s; }
.news-read:hover { color: var(--cyan); }
.news-list { display: flex; flex-direction: column; gap: 28px; }
.news-list-item { background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--r); padding: 32px; transition: border-color 0.2s; }
.news-list-item:hover { border-color: var(--border); }
.news-list-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.news-list-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.news-list-title a { color: var(--text); transition: color 0.2s; }
.news-list-title a:hover { color: var(--blue); }
.news-list-excerpt { font-size: 14px; color: var(--text2); line-height: 1.7; margin-bottom: 16px; }
.news-list-footer { display: flex; align-items: center; justify-content: space-between; }

/* ── Article Page ── */
.article-hero { background: linear-gradient(135deg, var(--bg2) 0%, var(--bg3) 100%); padding: 64px 0 48px; border-bottom: 1px solid var(--border2); }
.article-hero-inner { max-width: 820px; margin: 0 auto; padding: 0 24px; }
.article-crumb { font-size: 13px; color: var(--text3); margin-bottom: 16px; }
.article-crumb a { color: var(--text3); transition: color 0.2s; }
.article-crumb a:hover { color: var(--blue); }
.article-crumb span { margin: 0 6px; }
.article-tag-row { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.article-hero-title { font-size: clamp(22px, 4vw, 34px); font-weight: 800; line-height: 1.3; margin-bottom: 16px; }
.article-hero-meta { display: flex; align-items: center; gap: 20px; font-size: 13px; color: var(--text3); }
.article-body-wrap { max-width: 820px; margin: 0 auto; padding: 56px 24px 80px; }
.article-body h2 { font-size: 22px; font-weight: 700; margin: 40px 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border2); color: var(--text); }
.article-body h3 { font-size: 17px; font-weight: 700; margin: 28px 0 10px; color: var(--cyan); }
.article-body p { font-size: 15px; color: var(--text2); line-height: 1.85; margin-bottom: 16px; }
.article-body ul, .article-body ol { padding-left: 20px; margin-bottom: 16px; }
.article-body li { font-size: 15px; color: var(--text2); line-height: 1.85; margin-bottom: 6px; }
.article-body strong { color: var(--text); font-weight: 700; }
.article-body a { color: var(--blue); }
.article-body a:hover { color: var(--cyan); }
.article-highlight { background: rgba(59,130,246,0.08); border-left: 3px solid var(--blue); border-radius: 0 var(--r2) var(--r2) 0; padding: 16px 20px; margin: 24px 0; }
.article-highlight p { margin: 0; color: var(--text); }
.article-cta { background: linear-gradient(135deg, rgba(59,130,246,0.12), rgba(6,182,212,0.08)); border: 1px solid rgba(59,130,246,0.25); border-radius: var(--r); padding: 32px; text-align: center; margin: 40px 0; }
.article-cta h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.article-cta p { color: var(--text2); margin-bottom: 20px; }
.article-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--border2); }
.article-nav-btn { flex: 1; background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--r2); padding: 16px 20px; font-size: 13px; color: var(--text2); transition: border-color 0.2s, color 0.2s; }
.article-nav-btn:hover { border-color: var(--border); color: var(--text); }
.article-nav-btn strong { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-top: 4px; }
.article-nav-btn.next { text-align: right; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .req-grid { grid-template-columns: repeat(2, 1fr); }
  .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .ftab-panel.active { grid-template-columns: 1fr; gap: 28px; }
  .deep-row { grid-template-columns: 1fr; gap: 32px; }
  .deep-row.flip { direction: ltr; }
}
@media (max-width: 768px) {
  .news-grid { grid-template-columns: 1fr; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-vis { display: none; }
  .nav-links, .nav-dl { display: none; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; }
  .feat-grid { grid-template-columns: 1fr; }
  .rev-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .op-grid { grid-template-columns: 1fr; }
  .dl-specs { grid-template-columns: repeat(2, 1fr); }
  .dl-win-btns { flex-direction: column; }
  .ftab-nav { overflow-x: auto; }
  .tips-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .sec { padding: 56px 0; }
  .dl-specs { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .cta-btns { flex-direction: column; align-items: center; }
}