/* =============================================
   Neon Horizon Theme — google2
   Electric Blue #0066ff + Charcoal #111827 + White #ffffff
   ============================================= */

@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 pulse { 0%,100% { opacity:1; } 50% { opacity:.5; } }
@keyframes gradShift { 0% { background-position:0% 50%; } 50% { background-position:100% 50%; } 100% { background-position:0% 50%; } }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #0066ff;
  --blue2: #3385ff;
  --blue3: #cce0ff;
  --dark: #111827;
  --dark2: #1f2937;
  --dark3: #374151;
  --mid: #6b7280;
  --light: #f3f7ff;
  --white: #ffffff;
  --green: #10b981;
  --amber: #f59e0b;
  --rose: #ef4444;
  --violet: #8b5cf6;
  --cyan: #06b6d4;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,102,255,.12);
  --shadow2: 0 2px 8px rgba(0,0,0,.08);
}

html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: var(--dark); background: var(--white); line-height: 1.6; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
ul { list-style: none; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---- NAVBAR ---- */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--dark); text-decoration: none; }
.nav-brand svg { flex-shrink: 0; }
.nav-brand:hover { text-decoration: none; }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-flex; align-items: center; padding: 6px 16px; border-radius: 6px;
  font-size: .9rem; font-weight: 500; color: var(--dark3); transition: all .2s;
  text-decoration: none;
}
.nav-link:hover { background: var(--light); color: var(--blue); text-decoration: none; }
.nav-link.on { background: var(--blue); color: #fff; }
.nav-dl {
  margin-left: 12px; padding: 7px 20px; background: var(--blue); color: #fff;
  border-radius: 8px; font-size: .88rem; font-weight: 600; transition: background .2s;
  text-decoration: none;
}
.nav-dl:hover { background: #0055dd; text-decoration: none; }

/* ---- BUTTONS ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: none; cursor: pointer; font-weight: 600; transition: all .2s; border-radius: var(--radius); font-family: inherit; }
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { background: #0055dd; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-dark { background: var(--dark); color: #fff; }
.btn-dark:hover { background: var(--dark2); }
.btn-outline { background: transparent; border: 2px solid var(--blue); color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; }
.btn-outline-dark { background: transparent; border: 2px solid var(--dark); color: var(--dark); }
.btn-outline-dark:hover { background: var(--dark); color: #fff; }
.btn-white { background: #fff; color: var(--blue); }
.btn-white:hover { background: var(--light); }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.22); }
.btn-lg { padding: 14px 32px; font-size: 1rem; border-radius: 10px; }
.btn-sm { padding: 8px 18px; font-size: .85rem; border-radius: 8px; }
.btn-xs { padding: 5px 12px; font-size: .8rem; border-radius: 6px; }

/* ---- SECTION SHELLS ---- */
.sec { padding: 80px 0; }
.sec-white { background: var(--white); }
.sec-light { background: var(--light); }
.sec-dark { background: var(--dark); color: #fff; }
.sec-blue { background: var(--blue); color: #fff; }
.sec-charcoal { background: var(--dark2); color: #fff; }
.sec-stripe { background: linear-gradient(135deg, var(--dark) 0%, #1a2744 100%); color: #fff; }

.sec-head { text-align: center; margin-bottom: 52px; }
.sec-eyebrow { display: inline-flex; align-items: center; gap: 6px; background: var(--blue3); color: var(--blue); font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 4px 12px; border-radius: 20px; margin-bottom: 14px; }
.sec-eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }
.sec-title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; line-height: 1.25; color: var(--dark); }
.sec-title-light { color: #fff; }
.sec-sub { font-size: 1.05rem; color: var(--mid); margin-top: 10px; max-width: 580px; margin-left: auto; margin-right: auto; }
.sec-sub-light { color: rgba(255,255,255,.72); }

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, #030b1a 0%, #0d1f42 40%, #091533 100%);
  background-size: 200% 200%;
  animation: gradShift 8s ease infinite;
  color: #fff;
  padding: 100px 0 80px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 70% 50%, rgba(0,102,255,.25) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(0,102,255,.25); border: 1px solid rgba(0,102,255,.4); color: var(--blue2); font-size: .82rem; font-weight: 600; padding: 5px 14px; border-radius: 20px; margin-bottom: 20px; }
.hero-tag-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue2); animation: pulse 1.8s ease-in-out infinite; }
.hero-title { font-size: clamp(2rem, 4.5vw, 3.6rem); font-weight: 900; line-height: 1.12; margin-bottom: 18px; letter-spacing: -.02em; }
.hero-title em { font-style: normal; color: var(--blue2); }
.hero-desc { font-size: 1.1rem; color: rgba(255,255,255,.72); margin-bottom: 32px; max-width: 460px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-chip { display: inline-flex; align-items: center; gap: 5px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.75); font-size: .8rem; padding: 4px 12px; border-radius: 20px; }

/* Hero visual — browser mockup */
.hero-visual { position: relative; }
.hero-browser { background: #1e2d4e; border-radius: 16px; overflow: hidden; box-shadow: 0 32px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(0,102,255,.2); }
.hb-titlebar { background: #162039; padding: 10px 16px; display: flex; align-items: center; gap: 8px; }
.hb-dot { width: 10px; height: 10px; border-radius: 50%; }
.hb-dot.r { background: #ff5f57; }
.hb-dot.y { background: #febc2e; }
.hb-dot.g { background: #28c840; }
.hb-url { flex: 1; background: rgba(255,255,255,.07); border-radius: 6px; padding: 5px 12px; font-size: .8rem; color: rgba(255,255,255,.5); margin: 0 12px; }
.hb-body { padding: 20px; }
.hb-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.hb-tab { padding: 6px 14px; border-radius: 6px; font-size: .78rem; color: rgba(255,255,255,.5); background: rgba(255,255,255,.04); }
.hb-tab.act { background: rgba(0,102,255,.25); color: var(--blue2); }
.hb-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.hb-card { background: rgba(255,255,255,.06); border-radius: 8px; padding: 14px; text-align: center; }
.hb-card-ico { width: 36px; height: 36px; border-radius: 8px; margin: 0 auto 8px; display: flex; align-items: center; justify-content: center; }
.hb-card-ico.blue { background: rgba(0,102,255,.25); }
.hb-card-ico.green { background: rgba(16,185,129,.2); }
.hb-card-ico.amber { background: rgba(245,158,11,.2); }
.hb-card-lbl { font-size: .72rem; color: rgba(255,255,255,.5); }
.hb-search { margin-top: 14px; background: rgba(255,255,255,.06); border-radius: 8px; padding: 10px 14px; display: flex; align-items: center; gap: 8px; }
.hb-search-txt { font-size: .8rem; color: rgba(255,255,255,.35); }
.hero-floating { position: absolute; right: -20px; top: -20px; background: var(--blue); color: #fff; border-radius: 12px; padding: 10px 16px; font-size: .82rem; font-weight: 700; box-shadow: 0 8px 24px rgba(0,102,255,.4); }
.hero-floating2 { position: absolute; left: -10px; bottom: 20px; background: var(--dark2); color: #fff; border-radius: 10px; padding: 10px 14px; font-size: .78rem; box-shadow: 0 8px 20px rgba(0,0,0,.3); }

/* ---- STATS BAR ---- */
.stats-bar { background: var(--blue); padding: 32px 0; }
.stats-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; }
.stat-item { text-align: center; padding: 0 24px; border-right: 1px solid rgba(255,255,255,.2); }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 2rem; font-weight: 800; color: #fff; display: block; }
.stat-lbl { font-size: .82rem; color: rgba(255,255,255,.75); margin-top: 2px; }

/* ---- FEATURE CARDS ---- */
.feat-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.feat-card {
  background: var(--white); border-radius: var(--radius); padding: 28px 24px;
  border: 1px solid #e5e7eb; box-shadow: var(--shadow2);
  transition: all .25s; position: relative; overflow: hidden;
}
.feat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; border-radius: 12px 12px 0 0; opacity: 0; transition: opacity .2s; }
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feat-card:hover::before { opacity: 1; }
.feat-card.fc-blue::before { background: var(--blue); }
.feat-card.fc-green::before { background: var(--green); }
.feat-card.fc-amber::before { background: var(--amber); }
.feat-card.fc-violet::before { background: var(--violet); }
.feat-card.fc-rose::before { background: var(--rose); }
.feat-card.fc-cyan::before { background: var(--cyan); }
.feat-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.fi-blue { background: #dbeafe; }
.fi-green { background: #d1fae5; }
.fi-amber { background: #fef3c7; }
.fi-violet { background: #ede9fe; }
.fi-rose { background: #fee2e2; }
.fi-cyan { background: #cffafe; }
.feat-name { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--dark); }
.feat-desc { font-size: .88rem; color: var(--mid); line-height: 1.65; }

/* ---- PLATFORM CARDS ---- */
.plat-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.plat-card {
  background: var(--white); border: 2px solid #e5e7eb; border-radius: 14px;
  padding: 28px 20px; text-align: center; transition: all .2s;
}
.plat-card:hover { border-color: var(--blue); box-shadow: var(--shadow); transform: translateY(-3px); }
.plat-card.featured { border-color: var(--blue); background: #f0f6ff; }
.plat-badge { display: inline-block; background: var(--blue); color: #fff; font-size: .72rem; font-weight: 700; padding: 2px 10px; border-radius: 12px; margin-bottom: 10px; }
.plat-ico { width: 52px; height: 52px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: center; }
.plat-name { font-size: .95rem; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.plat-ver { font-size: .8rem; color: var(--mid); margin-bottom: 16px; }
.plat-note { font-size: .78rem; color: var(--mid); line-height: 1.5; }

/* ---- DEEP FEATURE ROWS ---- */
.deep-row { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 60px 0; border-bottom: 1px solid #f0f0f0; }
.deep-row:last-child { border-bottom: none; }
.deep-row.rev .deep-info { order: 2; }
.deep-row.rev .deep-media { order: 1; }
.deep-badge { display: inline-block; font-size: .75rem; font-weight: 700; padding: 3px 12px; border-radius: 20px; margin-bottom: 12px; }
.deep-badge.db-blue { background: var(--blue3); color: var(--blue); }
.deep-badge.db-green { background: #d1fae5; color: #065f46; }
.deep-badge.db-amber { background: #fef3c7; color: #92400e; }
.deep-badge.db-violet { background: #ede9fe; color: #5b21b6; }
.deep-title { font-size: clamp(1.3rem, 2.5vw, 1.9rem); font-weight: 800; line-height: 1.3; color: var(--dark); margin-bottom: 14px; }
.deep-desc { font-size: .95rem; color: var(--mid); line-height: 1.75; margin-bottom: 18px; }
.deep-list { display: flex; flex-direction: column; gap: 8px; }
.deep-list li { display: flex; align-items: flex-start; gap: 8px; font-size: .9rem; color: var(--dark3); }
.deep-list li::before { content: ''; width: 18px; height: 18px; border-radius: 50%; background: var(--blue); flex-shrink: 0; margin-top: 2px; }
.deep-visual { background: var(--light); border-radius: 14px; overflow: hidden; border: 1px solid #e5e7eb; }
.deep-visual-inner { padding: 24px; }

/* Deep visual — panels */
.dv-panel { background: #fff; border-radius: 10px; padding: 14px 16px; margin-bottom: 10px; border: 1px solid #e5e7eb; display: flex; align-items: center; gap: 12px; }
.dv-panel:last-child { margin-bottom: 0; }
.dv-icon { width: 36px; height: 36px; border-radius: 8px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.dv-icon.blue { background: #dbeafe; }
.dv-icon.green { background: #d1fae5; }
.dv-icon.amber { background: #fef3c7; }
.dv-icon.violet { background: #ede9fe; }
.dv-icon.cyan { background: #cffafe; }
.dv-body { flex: 1; }
.dv-label { font-size: .78rem; font-weight: 700; color: var(--dark); }
.dv-sub { font-size: .72rem; color: var(--mid); margin-top: 2px; }
.dv-bar { height: 4px; background: #e5e7eb; border-radius: 2px; margin-top: 6px; }
.dv-bar-fill { height: 100%; border-radius: 2px; background: var(--blue); }

/* ---- REVIEW CARDS ---- */
.rev-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.rev-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 14px; padding: 24px; box-shadow: var(--shadow2); }
.rev-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.rev-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 700; color: #fff; flex-shrink: 0; }
.av-blue { background: linear-gradient(135deg, #0066ff, #3385ff); }
.av-green { background: linear-gradient(135deg, #059669, #10b981); }
.av-amber { background: linear-gradient(135deg, #d97706, #f59e0b); }
.av-violet { background: linear-gradient(135deg, #7c3aed, #8b5cf6); }
.av-rose { background: linear-gradient(135deg, #dc2626, #ef4444); }
.av-cyan { background: linear-gradient(135deg, #0891b2, #06b6d4); }
.rev-info { flex: 1; }
.rev-name { font-size: .9rem; font-weight: 700; color: var(--dark); }
.rev-role { font-size: .78rem; color: var(--mid); }
.rev-stars { display: flex; gap: 2px; margin-bottom: 10px; color: var(--amber); font-size: 1rem; }
.rev-text { font-size: .88rem; color: var(--dark3); line-height: 1.65; }

/* ---- COMPARISON TABLE ---- */
.cmp-wrap { overflow-x: auto; }
.cmp-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.cmp-table th { background: var(--dark); color: #fff; padding: 14px 18px; text-align: left; font-weight: 600; }
.cmp-table th:first-child { border-radius: 12px 0 0 0; }
.cmp-table th:last-child { border-radius: 0 12px 0 0; }
.cmp-table td { padding: 13px 18px; border-bottom: 1px solid #f0f0f0; color: var(--dark3); }
.cmp-table tr:last-child td { border-bottom: none; }
.cmp-table tr:nth-child(even) td { background: var(--light); }
.cmp-hl td { background: #f0f6ff !important; font-weight: 600; }
.cmp-hl td:nth-child(2) { color: var(--blue); }
.yes { color: var(--green); font-weight: 700; }
.no { color: var(--rose); }
.part { color: var(--amber); }

/* ---- FAQ ---- */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item { border: 1px solid #e5e7eb; border-radius: 10px; overflow: hidden; }
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: .95rem;
  color: var(--dark); background: #fff; transition: background .15s;
  user-select: none;
}
.faq-q:hover { background: var(--light); }
.faq-chevron { width: 20px; height: 20px; flex-shrink: 0; color: var(--mid); transition: transform .2s; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner { padding: 0 20px 18px; font-size: .9rem; color: var(--mid); line-height: 1.72; }

/* ---- CTA BANNER ---- */
.cta-banner { text-align: center; padding: 80px 0; }
.cta-tag { display: inline-block; background: rgba(255,255,255,.15); color: #fff; font-size: .8rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; margin-bottom: 16px; }
.cta-title { font-size: clamp(1.6rem,3vw,2.4rem); font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-desc { color: rgba(255,255,255,.72); font-size: 1rem; max-width: 500px; margin: 0 auto 32px; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }

/* ---- DOWNLOAD PAGE ---- */
.dl-hero { background: linear-gradient(135deg, #030b1a 0%, #0d1f42 100%); color: #fff; padding: 72px 0 60px; text-align: center; }
.dl-hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(0,102,255,.3); border: 1px solid rgba(0,102,255,.4); color: var(--blue2); font-size: .8rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; margin-bottom: 16px; }
.dl-hero-title { font-size: clamp(1.8rem,3.5vw,2.8rem); font-weight: 900; margin-bottom: 10px; }
.dl-hero-sub { color: rgba(255,255,255,.65); font-size: 1rem; max-width: 500px; margin: 0 auto; }

.dl-main-box { background: #fff; border-radius: 20px; box-shadow: 0 16px 48px rgba(0,0,0,.15); overflow: hidden; max-width: 700px; margin: 0 auto; }
.dl-main-head { background: var(--blue); padding: 28px 32px; display: flex; align-items: center; gap: 18px; }
.dl-main-icon { width: 56px; height: 56px; background: rgba(255,255,255,.15); border-radius: 14px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.dl-main-info { flex: 1; }
.dl-main-name { font-size: 1.3rem; font-weight: 800; color: #fff; margin-bottom: 4px; }
.dl-main-meta { display: flex; gap: 16px; flex-wrap: wrap; }
.dl-meta-item { font-size: .82rem; color: rgba(255,255,255,.75); display: flex; align-items: center; gap: 4px; }
.dl-main-body { padding: 28px 32px; }
.dl-specs { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 24px; }
.dl-spec { background: var(--light); border-radius: 10px; padding: 14px; }
.dl-spec-label { font-size: .72rem; color: var(--mid); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.dl-spec-val { font-size: .92rem; font-weight: 700; color: var(--dark); }
.dl-sec-badge { display: flex; align-items: center; gap: 8px; background: #d1fae5; border-radius: 8px; padding: 10px 16px; font-size: .83rem; color: #065f46; font-weight: 500; }

.op-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.op-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 14px; padding: 24px; text-align: center; box-shadow: var(--shadow2); }
.op-icon { width: 52px; height: 52px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: center; }
.op-name { font-size: .95rem; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.op-ver { font-size: .8rem; color: var(--mid); margin-bottom: 16px; }
.op-steps { text-align: left; margin-bottom: 16px; }
.op-steps li { display: flex; gap: 8px; font-size: .82rem; color: var(--mid); padding: 4px 0; }
.op-steps li::before { content: counter(step); counter-increment: step; width: 18px; height: 18px; background: var(--blue); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: .7rem; font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.op-steps { counter-reset: step; }

/* Guide steps */
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.guide-title { font-size: 1.1rem; font-weight: 800; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.guide-steps { display: flex; flex-direction: column; gap: 16px; }
.gstep { display: flex; gap: 14px; }
.gstep-num {
  width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 800; color: #fff; flex-shrink: 0; margin-top: 2px;
}
.gstep-num.blue { background: var(--blue); }
.gstep-num.green { background: var(--green); }
.gstep-body { flex: 1; }
.gstep-title { font-size: .92rem; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.gstep-desc { font-size: .85rem; color: var(--mid); line-height: 1.6; }

/* Req cards */
.req-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.req-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 22px; box-shadow: var(--shadow2); }
.req-icon { width: 42px; height: 42px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.req-title { font-size: .9rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.req-list { display: flex; flex-direction: column; gap: 4px; }
.req-list li { font-size: .8rem; color: var(--mid); display: flex; align-items: flex-start; gap: 6px; }
.req-list li::before { content: '•'; color: var(--blue); flex-shrink: 0; }

/* Version timeline */
.ver-list { display: flex; flex-direction: column; gap: 0; }
.ver-item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid #f0f0f0; }
.ver-item:last-child { border-bottom: none; }
.ver-dot-col { display: flex; flex-direction: column; align-items: center; padding-top: 4px; }
.ver-dot { width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0; }
.vd-blue { background: var(--blue); }
.vd-green { background: var(--green); }
.vd-amber { background: var(--amber); }
.ver-line { flex: 1; width: 2px; background: #e5e7eb; margin-top: 4px; }
.ver-body { flex: 1; }
.ver-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.ver-num { font-size: .92rem; font-weight: 800; color: var(--dark); }
.ver-tag { font-size: .7rem; font-weight: 700; padding: 2px 8px; border-radius: 10px; }
.ver-tag.stable { background: #d1fae5; color: #065f46; }
.ver-tag.lts { background: var(--blue3); color: var(--blue); }
.ver-tag.beta { background: #fef3c7; color: #92400e; }
.ver-date { font-size: .78rem; color: var(--mid); margin-left: auto; }
.ver-desc { font-size: .85rem; color: var(--mid); line-height: 1.6; }

/* Security banner */
.sec-banner { background: linear-gradient(135deg, #065f46, #059669); border-radius: 14px; padding: 24px 28px; display: flex; align-items: center; gap: 18px; }
.sec-banner-ico { width: 48px; height: 48px; background: rgba(255,255,255,.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sec-banner-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.sec-banner-desc { font-size: .85rem; color: rgba(255,255,255,.8); }

/* ---- ARTICLE PAGE ---- */
.art-hero { background: linear-gradient(135deg, #030b1a, #0d1f42); color: #fff; padding: 72px 0 56px; }
.art-hero-inner { max-width: 760px; }
.art-hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(0,102,255,.25); border: 1px solid rgba(0,102,255,.4); color: var(--blue2); font-size: .8rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; margin-bottom: 16px; }
.art-hero-title { font-size: clamp(1.7rem,3.5vw,2.8rem); font-weight: 900; margin-bottom: 14px; }
.art-hero-sub { color: rgba(255,255,255,.7); font-size: 1rem; line-height: 1.7; max-width: 600px; }
.kw-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.kw { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15); color: rgba(255,255,255,.75); font-size: .78rem; padding: 3px 12px; border-radius: 16px; }

.art-layout { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; padding: 60px 0; }
.art-body h2 { font-size: 1.35rem; font-weight: 800; color: var(--dark); margin: 32px 0 12px; }
.art-body h2:first-child { margin-top: 0; }
.art-body h3 { font-size: 1.05rem; font-weight: 700; color: var(--dark2); margin: 20px 0 8px; }
.art-body p { font-size: .94rem; color: var(--dark3); line-height: 1.8; margin-bottom: 14px; }
.art-body ul, .art-body ol { margin: 10px 0 14px 20px; }
.art-body li { font-size: .92rem; color: var(--dark3); line-height: 1.7; margin-bottom: 6px; }

.inline-cta { background: linear-gradient(135deg, var(--blue), #0055dd); border-radius: 14px; padding: 28px 28px; margin: 32px 0; color: #fff; }
.inline-cta-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 6px; }
.inline-cta-desc { font-size: .87rem; color: rgba(255,255,255,.8); margin-bottom: 16px; }

/* Sidebar */
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 20px; }
.sbox { background: #fff; border: 1px solid #e5e7eb; border-radius: 14px; padding: 20px; box-shadow: var(--shadow2); }
.sbox-title { font-size: .85rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--blue); margin-bottom: 14px; }
.sdl-btn { display: flex; align-items: center; gap: 10px; width: 100%; padding: 11px 14px; border-radius: 10px; margin-bottom: 8px; font-size: .88rem; font-weight: 600; border: none; cursor: pointer; transition: all .2s; }
.sdl-btn:last-child { margin-bottom: 0; }
.sdl-btn.win { background: var(--blue); color: #fff; }
.sdl-btn.win:hover { background: #0055dd; }
.sdl-btn.mac { background: var(--dark); color: #fff; }
.sdl-btn.mac:hover { background: var(--dark2); }
.sdl-btn.ios { background: #f3f4f6; color: var(--dark); }
.sdl-btn.ios:hover { background: #e5e7eb; }
.sdl-btn.android { background: #ecfdf5; color: #065f46; }
.sdl-btn.android:hover { background: #d1fae5; }
.stoc { display: flex; flex-direction: column; gap: 6px; }
.stoc a { font-size: .85rem; color: var(--mid); padding: 3px 0; display: block; }
.stoc a:hover { color: var(--blue); }
.sstat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sstat-item { background: var(--light); border-radius: 8px; padding: 10px; text-align: center; }
.sstat-num { display: block; font-size: 1.1rem; font-weight: 800; color: var(--blue); }
.sstat-lbl { font-size: .72rem; color: var(--mid); }
.side-security { background: #ecfdf5; border-radius: 10px; padding: 12px 14px; font-size: .8rem; color: #065f46; display: flex; align-items: flex-start; gap: 8px; }

/* ---- FOOTER ---- */
.site-footer { background: var(--dark); color: rgba(255,255,255,.6); padding: 40px 0 32px; }
.footer-inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 1rem; }
.footer-security { font-size: .85rem; color: #10b981; background: rgba(16,185,129,.1); border: 1px solid rgba(16,185,129,.25); padding: 8px 20px; border-radius: 8px; display: inline-flex; align-items: center; gap: 6px; }
.footer-note { font-size: .78rem; color: rgba(255,255,255,.35); max-width: 560px; text-align: center; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .feat-grid { grid-template-columns: repeat(2,1fr); }
  .req-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .stats-row { grid-template-columns: repeat(2,1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.2); padding: 12px; }
  .feat-grid { grid-template-columns: 1fr; }
  .plat-row { grid-template-columns: repeat(2,1fr); }
  .deep-row { grid-template-columns: 1fr; gap: 32px; }
  .deep-row.rev .deep-info, .deep-row.rev .deep-media { order: unset; }
  .rev-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .op-grid { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr 1fr; }
  .dl-specs { grid-template-columns: 1fr 1fr; }
  .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .nav-menu { gap: 2px; }
  .nav-link { padding: 5px 10px; font-size: .82rem; }
  .nav-dl { padding: 6px 14px; font-size: .82rem; }
  .dl-main-head { padding: 20px; }
  .dl-main-body { padding: 20px; }
}
@media (max-width: 480px) {
  .plat-row { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .dl-specs { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr; }
  .sec { padding: 52px 0; }
  .hero { padding: 60px 0 52px; }
}