/* ============================================================
   WPS3 — Neon Mint / Dark Productivity Theme
   Colors: Charcoal #111827 | Mint #10b981 | Indigo #6366f1 | Amber #f59e0b | Rose #f43f5e
   ============================================================ */

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

:root {
  --mint: #10b981;
  --mint-l: #34d399;
  --mint-d: #059669;
  --indigo: #6366f1;
  --indigo-d: #4f46e5;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --teal: #0d9488;
  --sky: #0ea5e9;
  --charcoal: #111827;
  --charcoal2: #1f2937;
  --charcoal3: #374151;
  --surface: #f8fafc;
  --surface2: #f1f5f9;
  --white: #ffffff;
  --ink: #0f172a;
  --text: #1e293b;
  --muted: #64748b;
  --light: #94a3b8;
}

html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text); background: var(--white); line-height: 1.6; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes pulse-dot { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:.5; transform:scale(1.4); } }

/* ---- Layout ---- */
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.sec { padding: 80px 0; }
.sec-sm { padding: 48px 0; }
.sec-white { background: var(--white); }
.sec-surface { background: var(--surface); }
.sec-surface2 { background: var(--surface2); }
.sec-dark { background: var(--charcoal); }
.sec-dark2 { background: var(--charcoal2); }
.sec-mint { background: linear-gradient(135deg, var(--mint-d) 0%, var(--teal) 100%); }
.sec-ink { background: var(--ink); }

/* ---- Nav ---- */
.nm-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(17,24,39,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(16,185,129,0.15);
}
.nm-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1160px; margin: 0 auto; padding: 0 24px; height: 60px;
}
.nm-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nm-brand-mark {
  width: 34px; height: 34px; background: var(--mint); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 18px; color: #fff; letter-spacing: -1px;
}
.nm-brand-text { font-size: 16px; font-weight: 700; color: #fff; }
.nm-brand-sub { font-size: 11px; color: var(--mint-l); font-weight: 400; display: block; line-height: 1.2; }
.nm-links { display: flex; align-items: center; gap: 2px; }
.nm-link {
  padding: 6px 11px; border-radius: 6px; text-decoration: none;
  font-size: 13px; color: #9ca3af; transition: color .2s, background .2s;
  white-space: nowrap;
}
.nm-link:hover { color: #fff; background: rgba(16,185,129,0.12); }
.nm-link.on { color: var(--mint); background: rgba(16,185,129,0.15); font-weight: 600; }
.nm-dl {
  margin-left: 8px; padding: 8px 18px;
  background: var(--mint); color: #fff; border-radius: 8px;
  font-size: 13px; font-weight: 600; text-decoration: none;
  transition: background .2s;
}
.nm-dl:hover { background: var(--mint-d); }
.nm-burger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px;
  background: none; border: none;
}
.nm-burger span { display: block; width: 22px; height: 2px; background: #9ca3af; border-radius: 2px; }
.nm-mobile {
  display: none; flex-direction: column; gap: 4px;
  padding: 12px 24px 16px;
  background: rgba(17,24,39,0.98); border-top: 1px solid rgba(16,185,129,0.1);
}
.nm-mobile.show { display: flex; }
.nm-mobile .nm-link { padding: 10px 12px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 8px; font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; text-decoration: none; transition: all .2s;
  padding: 10px 20px;
}
.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: 10px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-mint { background: var(--mint); color: #fff; }
.btn-mint:hover { background: var(--mint-d); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(16,185,129,.35); }
.btn-indigo { background: var(--indigo); color: #fff; }
.btn-indigo:hover { background: var(--indigo-d); transform: translateY(-1px); }
.btn-amber { background: var(--amber); color: #fff; }
.btn-amber:hover { background: #d97706; }
.btn-rose { background: var(--rose); color: #fff; }
.btn-outline { background: transparent; border: 2px solid var(--mint); color: var(--mint); }
.btn-outline:hover { background: rgba(16,185,129,.08); }
.btn-outline-w { background: transparent; border: 2px solid rgba(255,255,255,.4); color: #fff; }
.btn-outline-w:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-white { background: #fff; color: var(--charcoal); }
.btn-white:hover { background: var(--surface); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--text); }
.btn:disabled { opacity: .7; cursor: not-allowed; transform: none !important; }

/* ---- Section heads ---- */
.sec-hd { text-align: center; margin-bottom: 56px; }
.sec-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 20px; margin-bottom: 16px;
}
.sec-eyebrow.ey-mint { color: var(--mint); background: rgba(16,185,129,.1); }
.sec-eyebrow.ey-indigo { color: var(--indigo); background: rgba(99,102,241,.1); }
.sec-eyebrow.ey-amber { color: var(--amber); background: rgba(245,158,11,.1); }
.sec-eyebrow.ey-rose { color: var(--rose); background: rgba(244,63,94,.1); }
.sec-eyebrow.ey-white { color: #fff; background: rgba(255,255,255,.12); }
.ey-dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; animation: pulse-dot 2s infinite; }
.ey-dot.mint { background: var(--mint); }
.ey-dot.indigo { background: var(--indigo); }
.ey-dot.amber { background: var(--amber); }
.ey-dot.white { background: #fff; }
.sec-title { font-size: 36px; font-weight: 800; color: var(--ink); line-height: 1.2; margin-bottom: 14px; }
.sec-title.light { color: #fff; }
.sec-sub { font-size: 17px; color: var(--muted); max-width: 640px; margin: 0 auto; }
.sec-sub.light { color: rgba(255,255,255,.7); }
.hl { color: var(--mint); }
.hl2 { color: var(--indigo); }
.hl3 { color: var(--amber); }

/* ---- Hero ---- */
.hero {
  background: linear-gradient(135deg, var(--charcoal) 0%, #0d1f1a 50%, #0f172a 100%);
  padding: 100px 0 80px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 70% 50%, rgba(16,185,129,.12) 0%, transparent 70%),
              radial-gradient(ellipse 40% 40% at 20% 80%, rgba(99,102,241,.1) 0%, transparent 60%);
}
.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(16,185,129,.15); border: 1px solid rgba(16,185,129,.3);
  border-radius: 20px; padding: 6px 16px; margin-bottom: 20px;
  font-size: 12px; font-weight: 700; color: var(--mint); letter-spacing: .06em; text-transform: uppercase;
}
.hero-dot { width: 6px; height: 6px; background: var(--mint); border-radius: 50%; animation: pulse-dot 2s infinite; }
.hero-h1 { font-size: 52px; font-weight: 900; color: #fff; line-height: 1.12; margin-bottom: 20px; }
.hero-h1 .hl { background: linear-gradient(90deg, var(--mint), var(--mint-l)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-p { font-size: 17px; color: rgba(255,255,255,.7); line-height: 1.7; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-stat-num { font-size: 26px; font-weight: 800; color: #fff; }
.hero-stat-num.c-mint { color: var(--mint); }
.hero-stat-num.c-indigo { color: #a5b4fc; }
.hero-stat-num.c-amber { color: var(--amber); }
.hero-stat-lbl { font-size: 12px; color: rgba(255,255,255,.5); margin-top: 2px; }

/* Hero visual - dashboard mockup */
.hero-vis { position: relative; animation: floatY 4s ease-in-out infinite; }
.hero-panel {
  background: rgba(31,41,55,.9); border: 1px solid rgba(16,185,129,.2);
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.4), 0 0 40px rgba(16,185,129,.08);
}
.hp-topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; background: rgba(17,24,39,.8);
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.hp-dot { width: 10px; height: 10px; border-radius: 50%; }
.hp-dot.r { background: #f87171; }
.hp-dot.y { background: #fbbf24; }
.hp-dot.g { background: #4ade80; }
.hp-title { font-size: 12px; color: rgba(255,255,255,.4); margin-left: 8px; }
.hp-body { padding: 20px; }
.hp-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.hp-tab {
  padding: 5px 12px; border-radius: 6px; font-size: 12px; color: rgba(255,255,255,.4);
  background: rgba(255,255,255,.05); cursor: default;
}
.hp-tab.on { background: rgba(16,185,129,.2); color: var(--mint); font-weight: 600; }
.hp-cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; margin-bottom: 16px; }
.hp-card {
  background: rgba(17,24,39,.6); border: 1px solid rgba(255,255,255,.07);
  border-radius: 10px; padding: 12px;
}
.hp-card-lbl { font-size: 11px; color: rgba(255,255,255,.4); margin-bottom: 4px; }
.hp-card-val { font-size: 20px; font-weight: 700; }
.hp-card-val.c-mint { color: var(--mint); }
.hp-card-val.c-indigo { color: #a5b4fc; }
.hp-card-val.c-amber { color: var(--amber); }
.hp-card-val.c-rose { color: #fb7185; }
.hp-bars { display: flex; flex-direction: column; gap: 8px; }
.hp-bar-row { display: flex; align-items: center; gap: 8px; }
.hp-bar-lbl { font-size: 11px; color: rgba(255,255,255,.4); width: 60px; flex-shrink: 0; }
.hp-bar-track { flex: 1; height: 6px; background: rgba(255,255,255,.08); border-radius: 3px; overflow: hidden; }
.hp-bar-fill { height: 100%; border-radius: 3px; }
.hp-bar-fill.bm { background: var(--mint); width: 85%; }
.hp-bar-fill.bi { background: var(--indigo); width: 72%; }
.hp-bar-fill.ba { background: var(--amber); width: 90%; }
.hp-bar-fill.bt { background: var(--teal); width: 65%; }
.hp-bar-val { font-size: 11px; color: rgba(255,255,255,.5); width: 30px; text-align: right; }

/* ---- Stats band ---- */
.stats-band { background: var(--mint-d); padding: 28px 0; }
.stats-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 0; }
.stat-item {
  text-align: center; padding: 8px 48px;
  border-right: 1px solid rgba(255,255,255,.2);
}
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 28px; font-weight: 900; color: #fff; }
.stat-num.c-amber { color: #fef3c7; }
.stat-lbl { font-size: 12px; 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: #fff; border: 1px solid #e2e8f0; border-radius: 16px;
  padding: 28px; position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.feat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--mint);
}
.feat-card.fc-indigo::before { background: var(--indigo); }
.feat-card.fc-amber::before { background: var(--amber); }
.feat-card.fc-rose::before { background: var(--rose); }
.feat-card.fc-teal::before { background: var(--teal); }
.feat-card.fc-sky::before { background: var(--sky); }
.feat-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,.1); }
.feat-icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
}
.feat-icon.fi-mint { background: rgba(16,185,129,.12); color: var(--mint); }
.feat-icon.fi-indigo { background: rgba(99,102,241,.12); color: var(--indigo); }
.feat-icon.fi-amber { background: rgba(245,158,11,.12); color: var(--amber); }
.feat-icon.fi-rose { background: rgba(244,63,94,.12); color: var(--rose); }
.feat-icon.fi-teal { background: rgba(13,148,136,.12); color: var(--teal); }
.feat-icon.fi-sky { background: rgba(14,165,233,.12); color: var(--sky); }
.feat-name { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.feat-desc { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* ---- Deep rows (alternating) ---- */
.deep-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}
.deep-row.flip { direction: rtl; }
.deep-row.flip > * { direction: ltr; }
.deep-chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em;
  padding: 4px 12px; border-radius: 20px; margin-bottom: 12px;
}
.deep-chip.dc-mint { color: var(--mint); background: rgba(16,185,129,.1); }
.deep-chip.dc-indigo { color: var(--indigo); background: rgba(99,102,241,.1); }
.deep-chip.dc-amber { color: var(--amber); background: rgba(245,158,11,.1); }
.deep-chip.dc-teal { color: var(--teal); background: rgba(13,148,136,.1); }
.deep-chip-dot { width: 5px; height: 5px; border-radius: 50%; }
.dc-mint .deep-chip-dot { background: var(--mint); }
.dc-indigo .deep-chip-dot { background: var(--indigo); }
.dc-amber .deep-chip-dot { background: var(--amber); }
.dc-teal .deep-chip-dot { background: var(--teal); }
.deep-h3 { font-size: 30px; font-weight: 800; color: var(--ink); line-height: 1.25; margin-bottom: 12px; }
.deep-desc { font-size: 15px; color: var(--muted); 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(--text); }
.dl-dot { width: 6px; height: 6px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.dl-dot.mint { background: var(--mint); }
.dl-dot.indigo { background: var(--indigo); }
.dl-dot.amber { background: var(--amber); }
.dl-dot.teal { background: var(--teal); }

/* Deep visual panel */
.dv-panel {
  background: var(--white); border: 1px solid #e2e8f0; border-radius: 16px;
  padding: 24px; box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.dv-panel.dark {
  background: var(--charcoal2); border-color: rgba(255,255,255,.08);
}
.dv-panel-title { font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 16px; text-transform: uppercase; letter-spacing: .05em; }
.dv-panel.dark .dv-panel-title { color: rgba(255,255,255,.4); }
.dv-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.dv-bar-label { font-size: 12px; color: var(--muted); width: 72px; flex-shrink: 0; }
.dv-panel.dark .dv-bar-label { color: rgba(255,255,255,.45); }
.dv-bar-track { flex: 1; height: 8px; background: var(--surface2); border-radius: 4px; overflow: hidden; }
.dv-panel.dark .dv-bar-track { background: rgba(255,255,255,.08); }
.dv-bar-fill { height: 100%; border-radius: 4px; }
.dv-bar-fill.bm { background: var(--mint); }
.dv-bar-fill.bi { background: var(--indigo); }
.dv-bar-fill.ba { background: var(--amber); }
.dv-bar-fill.bt { background: var(--teal); }
.dv-bar-fill.bs { background: var(--sky); }
.dv-bar-val { font-size: 12px; color: var(--muted); width: 30px; text-align: right; flex-shrink: 0; }
.dv-panel.dark .dv-bar-val { color: rgba(255,255,255,.5); }
.dv-stat-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 20px; padding-top: 16px; border-top: 1px solid #e2e8f0; }
.dv-panel.dark .dv-stat-row { border-color: rgba(255,255,255,.08); }
.dv-stat { text-align: center; }
.dv-stat-num { font-size: 22px; font-weight: 800; }
.dv-stat-num.c-mint { color: var(--mint); }
.dv-stat-num.c-indigo { color: var(--indigo); }
.dv-stat-num.c-amber { color: var(--amber); }
.dv-stat-num.c-white { color: #fff; }
.dv-stat-lbl { font-size: 11px; color: var(--muted); margin-top: 2px; }
.dv-panel.dark .dv-stat-lbl { color: rgba(255,255,255,.4); }

/* ---- Feature tabs ---- */
.ftab-section { padding: 0; }
.ftab-nav { display: flex; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; }
.ftab-btn {
  padding: 8px 20px; border-radius: 8px; font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; background: var(--surface2); color: var(--muted);
  transition: all .2s;
}
.ftab-btn.active { background: var(--mint); color: #fff; }
.ftab-btn:hover:not(.active) { background: var(--surface); color: var(--text); }
.ftab-panel { display: none; }
.ftab-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

/* ---- Platform grid ---- */
.plat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.plat-card {
  background: var(--white); border: 2px solid #e2e8f0; border-radius: 16px;
  padding: 28px 20px; text-align: center; transition: border-color .2s, transform .2s;
}
.plat-card:hover { border-color: var(--mint); transform: translateY(-3px); }
.plat-card.featured {
  border-color: var(--mint); background: linear-gradient(135deg, rgba(16,185,129,.04) 0%, rgba(99,102,241,.04) 100%);
}
.plat-badge {
  display: inline-block; font-size: 11px; font-weight: 700;
  background: var(--mint); color: #fff; padding: 2px 10px; border-radius: 20px;
  margin-bottom: 12px;
}
.plat-icon { display: flex; justify-content: center; margin-bottom: 12px; color: var(--charcoal3); }
.plat-name { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.plat-ver { font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.plat-req { font-size: 12px; color: var(--light); margin-bottom: 16px; }
.plat-btn { width: 100%; }

/* ---- Reviews ---- */
.rev-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.rev-card {
  background: var(--white); border: 1px solid #e2e8f0; border-radius: 16px;
  padding: 24px; transition: box-shadow .2s;
}
.rev-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.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: 16px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.rev-avatar.av-mint { background: linear-gradient(135deg, var(--mint), var(--teal)); }
.rev-avatar.av-indigo { background: linear-gradient(135deg, var(--indigo), #8b5cf6); }
.rev-avatar.av-amber { background: linear-gradient(135deg, var(--amber), #d97706); }
.rev-avatar.av-rose { background: linear-gradient(135deg, var(--rose), #e11d48); }
.rev-avatar.av-sky { background: linear-gradient(135deg, var(--sky), #0284c7); }
.rev-avatar.av-teal { background: linear-gradient(135deg, var(--teal), #0f766e); }
.rev-name { font-size: 14px; font-weight: 700; color: var(--ink); }
.rev-role { font-size: 12px; color: var(--muted); }
.rev-stars { color: var(--amber); font-size: 14px; margin-bottom: 10px; }
.rev-text { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* ---- Security items ---- */
.sec-items { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; margin-bottom: 48px; }
.sec-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--white); border: 1px solid #e2e8f0; border-radius: 14px; padding: 20px;
}
.sec-item-icon {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.sec-item-icon.si-mint { background: rgba(16,185,129,.12); color: var(--mint); }
.sec-item-icon.si-indigo { background: rgba(99,102,241,.12); color: var(--indigo); }
.sec-item-icon.si-amber { background: rgba(245,158,11,.12); color: var(--amber); }
.sec-item-icon.si-teal { background: rgba(13,148,136,.12); color: var(--teal); }
.sec-item-title { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 5px; }
.sec-item-desc { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* ---- Comparison table ---- */
.cmp-wrap { overflow-x: auto; }
.cmp-table { width: 100%; border-collapse: collapse; }
.cmp-table th, .cmp-table td { padding: 12px 16px; text-align: center; border-bottom: 1px solid #e2e8f0; font-size: 14px; }
.cmp-table th { background: var(--charcoal); color: #fff; font-weight: 700; }
.cmp-table th:first-child { text-align: left; }
.cmp-table td:first-child { text-align: left; font-weight: 600; color: var(--ink); }
.cmp-table tr:hover td { background: rgba(16,185,129,.04); }
.cmp-hl { background: rgba(16,185,129,.06) !important; }
.yes { color: var(--mint); font-weight: 700; }
.no { color: #ef4444; font-weight: 700; }
.part { color: var(--amber); font-weight: 600; }

/* ---- Version cards ---- */
.ver-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.ver-card {
  background: var(--white); border: 2px solid #e2e8f0; border-radius: 20px; padding: 32px 28px;
  position: relative; transition: transform .2s, border-color .2s;
}
.ver-card:hover { transform: translateY(-4px); }
.ver-card.popular {
  border-color: var(--mint);
  box-shadow: 0 0 0 4px rgba(16,185,129,.1);
}
.ver-pop-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--mint); color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 16px; border-radius: 20px; white-space: nowrap;
}
.ver-name { font-size: 20px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.ver-desc { font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.ver-price { margin-bottom: 20px; }
.ver-price-main { font-size: 40px; font-weight: 900; color: var(--mint); line-height: 1; }
.ver-price-main.free { color: var(--ink); }
.ver-price-note { font-size: 13px; color: var(--muted); margin-top: 4px; }
.ver-sep { height: 1px; background: #e2e8f0; margin: 20px 0; }
.ver-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.ver-list li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); }
.ver-check { color: var(--mint); font-size: 16px; flex-shrink: 0; }
.ver-cta { display: block; text-align: center; }

/* ---- FAQ ---- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid #e2e8f0; border-radius: 12px; overflow: hidden;
  transition: border-color .2s;
}
.faq-item.open { border-color: var(--mint); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 20px; cursor: pointer; background: var(--white);
  font-size: 15px; font-weight: 600; color: var(--ink); list-style: none;
  user-select: none;
}
.faq-q:hover { background: rgba(16,185,129,.04); }
.faq-chevron {
  width: 20px; height: 20px; flex-shrink: 0; color: var(--muted);
  transition: transform .3s;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--mint); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner { padding: 0 20px 18px; font-size: 14px; color: var(--muted); line-height: 1.7; }

/* ---- CTA Banner ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--charcoal) 0%, #0d1f1a 100%);
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(16,185,129,.18) 0%, transparent 70%);
}
.cta-inner { position: relative; z-index: 1; text-align: center; }
.cta-eyebrow { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--mint); margin-bottom: 12px; }
.cta-h2 { font-size: 40px; font-weight: 900; color: #fff; margin-bottom: 14px; line-height: 1.2; }
.cta-p { font-size: 16px; color: rgba(255,255,255,.65); margin-bottom: 32px; }
.cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Footer ---- */
.site-footer { background: var(--ink); padding: 40px 0 30px; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand-mark {
  width: 32px; height: 32px; background: var(--mint); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 16px; color: #fff;
}
.footer-brand-name { font-size: 15px; font-weight: 700; color: rgba(255,255,255,.8); }
.footer-security { font-size: 13px; color: var(--mint); font-weight: 600; }
.footer-note { font-size: 12px; color: rgba(255,255,255,.3); text-align: center; }

/* ---- Download page ---- */
.dl-hero {
  background: linear-gradient(135deg, var(--charcoal) 0%, #0d1a14 100%);
  padding: 72px 0 64px; text-align: center;
}
.dl-hero-tag {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(16,185,129,.15); border: 1px solid rgba(16,185,129,.3);
  color: var(--mint); font-size: 12px; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.dl-hero-h1 { font-size: 44px; font-weight: 900; color: #fff; margin-bottom: 12px; }
.dl-hero-sub { font-size: 16px; color: rgba(255,255,255,.6); }

/* Main Windows card */
.dl-main-wrap { max-width: 720px; margin: 0 auto 48px; }
.dl-main-card {
  background: var(--white); border-radius: 20px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.12);
}
.dl-main-top {
  background: linear-gradient(90deg, var(--mint-d) 0%, var(--teal) 50%, var(--indigo) 100%);
  padding: 4px;
}
.dl-main-head {
  display: flex; align-items: center; gap: 16px;
  padding: 24px 28px; border-bottom: 1px solid #f1f5f9;
}
.dl-main-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(16,185,129,.1); display: flex; align-items: center; justify-content: center;
  color: var(--mint);
}
.dl-main-name { font-size: 20px; font-weight: 800; color: var(--ink); }
.dl-main-meta { font-size: 13px; color: var(--muted); }
.dl-main-body { padding: 24px 28px; }
.dl-specs { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 20px; }
.dl-spec { padding: 2px 0; }
.dl-spec-label { font-size: 11px; color: var(--light); text-transform: uppercase; letter-spacing: .05em; }
.dl-spec-val { font-size: 14px; font-weight: 600; color: var(--ink); margin-top: 2px; }
.dl-sec-badge {
  display: flex; align-items: center; gap: 8px;
  background: rgba(16,185,129,.07); border: 1px solid rgba(16,185,129,.2);
  border-radius: 8px; padding: 10px 14px; margin-bottom: 20px;
  font-size: 13px; color: var(--mint-d); font-weight: 600;
}
.dl-main-btns { display: flex; gap: 12px; }

/* Other platform cards */
.op-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-bottom: 64px; }
.op-card {
  background: var(--white); border: 1px solid #e2e8f0; border-radius: 16px; padding: 24px;
}
.op-icon { display: flex; justify-content: center; color: var(--charcoal3); margin-bottom: 12px; }
.op-name { font-size: 16px; font-weight: 700; color: var(--ink); text-align: center; margin-bottom: 4px; }
.op-ver { font-size: 13px; color: var(--muted); text-align: center; margin-bottom: 4px; }
.op-req { font-size: 12px; color: var(--light); text-align: center; margin-bottom: 16px; }
.op-steps { list-style: none; counter-reset: step; margin-bottom: 16px; display: flex; flex-direction: column; gap: 8px; }
.op-steps li { display: flex; gap: 10px; font-size: 13px; color: var(--muted); counter-increment: step; }
.op-step-n {
  width: 20px; height: 20px; background: var(--mint); color: #fff;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0; margin-top: 1px;
}
.op-btn { width: 100%; }

/* Guide grid */
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.guide-col-title {
  font-size: 18px; font-weight: 700; color: var(--ink);
  display: flex; align-items: center; gap: 10px; margin-bottom: 24px;
}
.guide-col-dot { width: 10px; height: 10px; border-radius: 50%; }
.guide-col-dot.gcd-mint { background: var(--mint); }
.guide-col-dot.gcd-indigo { background: var(--indigo); }
.guide-steps { display: flex; flex-direction: column; gap: 20px; }
.gstep { display: flex; gap: 16px; align-items: flex-start; }
.gstep-num {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff;
}
.gstep-num.gsn-mint { background: var(--mint); }
.gstep-num.gsn-indigo { background: var(--indigo); }
.gstep-title { font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 3px; }
.gstep-desc { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* Requirements */
.req-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.req-card {
  background: var(--white); border: 1px solid #e2e8f0; border-radius: 14px; padding: 20px;
}
.req-icon { color: var(--mint); margin-bottom: 10px; }
.req-title { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.req-rows { display: flex; flex-direction: column; gap: 7px; }
.req-row { display: flex; justify-content: space-between; font-size: 13px; padding-bottom: 7px; border-bottom: 1px solid #f1f5f9; }
.req-row:last-child { border-bottom: none; padding-bottom: 0; }
.req-label { color: var(--muted); }
.req-val { font-weight: 600; color: var(--ink); }

/* Version timeline */
.ver-list { display: flex; flex-direction: column; gap: 0; }
.ver-item { display: flex; gap: 20px; padding-bottom: 28px; position: relative; }
.ver-dot-col { display: flex; flex-direction: column; align-items: center; gap: 0; flex-shrink: 0; }
.ver-dot { width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0; }
.ver-dot.vd-mint { background: var(--mint); }
.ver-dot.vd-indigo { background: var(--indigo); }
.ver-dot.vd-amber { background: var(--amber); }
.ver-dot.vd-rose { background: var(--rose); }
.ver-dot.vd-teal { background: var(--teal); }
.ver-line { flex: 1; width: 2px; background: #e2e8f0; margin-top: 4px; }
.ver-item:last-child .ver-line { display: none; }
.ver-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.ver-num { font-size: 15px; font-weight: 700; color: var(--ink); }
.ver-tag { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 10px; }
.ver-tag.vt-stable { background: rgba(16,185,129,.12); color: var(--mint-d); }
.ver-tag.vt-lts { background: rgba(99,102,241,.12); color: var(--indigo); }
.ver-tag.vt-beta { background: rgba(245,158,11,.12); color: #d97706; }
.ver-date { font-size: 12px; color: var(--light); margin-bottom: 8px; }
.ver-desc { font-size: 13px; color: var(--muted); line-height: 1.65; }

/* Security banner */
.sec-banner {
  background: linear-gradient(135deg, rgba(16,185,129,.08) 0%, rgba(99,102,241,.08) 100%);
  border: 1px solid rgba(16,185,129,.2); border-radius: 16px; padding: 28px 32px;
  display: flex; align-items: flex-start; gap: 20px;
}
.sec-banner-icon { color: var(--mint); flex-shrink: 0; }
.sec-banner-title { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.sec-banner-desc { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* ---- Article / zh-cn page ---- */
.art-hero {
  background: linear-gradient(135deg, #0f172a 0%, #0d1a14 100%);
  padding: 64px 0 48px;
}
.art-hero-crumb { font-size: 13px; color: rgba(255,255,255,.4); margin-bottom: 12px; }
.art-hero-crumb a { color: var(--mint); text-decoration: none; }
.art-hero-title { font-size: 40px; font-weight: 900; color: #fff; line-height: 1.2; margin-bottom: 12px; }
.art-hero-sub { font-size: 16px; color: rgba(255,255,255,.6); margin-bottom: 24px; }
.kw-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 0; }
.kw {
  font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 20px;
  background: rgba(255,255,255,.08); color: rgba(255,255,255,.6); border: 1px solid rgba(255,255,255,.12);
}

.art-layout { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: flex-start; }
.art-body { min-width: 0; }
.art-body h2 { font-size: 26px; font-weight: 800; color: var(--ink); margin: 40px 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--mint); }
.art-body h2:first-child { margin-top: 0; }
.art-body h3 { font-size: 18px; font-weight: 700; color: var(--ink); margin: 24px 0 10px; }
.art-body p { font-size: 15px; color: var(--muted); line-height: 1.8; margin-bottom: 14px; }
.art-body ul { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.art-body ul li { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; color: var(--muted); line-height: 1.65; }
.art-body ul li::before { content: ''; width: 6px; height: 6px; background: var(--mint); border-radius: 50%; margin-top: 7px; flex-shrink: 0; }

/* Inline CTA */
.inline-cta {
  border-radius: 14px; padding: 22px 24px; margin: 28px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.inline-cta.ic-mint { background: rgba(16,185,129,.08); border: 1px solid rgba(16,185,129,.2); }
.inline-cta.ic-indigo { background: rgba(99,102,241,.08); border: 1px solid rgba(99,102,241,.2); }
.inline-cta.ic-amber { background: rgba(245,158,11,.08); border: 1px solid rgba(245,158,11,.2); }
.inline-cta-body { flex: 1; }
.inline-cta-title { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.inline-cta-desc { font-size: 13px; color: var(--muted); }

/* Tips grid */
.tips-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin: 16px 0; }
.tip-card { background: var(--surface); border-radius: 12px; padding: 16px; }
.tip-num {
  width: 28px; height: 28px; background: var(--mint); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; margin-bottom: 8px;
}
.tip-title { font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.tip-desc { font-size: 13px; color: var(--muted); }

/* Sidebar */
.sidebar { position: sticky; top: 80px; }
.sbox { background: var(--white); border: 1px solid #e2e8f0; border-radius: 14px; padding: 20px; margin-bottom: 20px; }
.sbox-title { font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid #e2e8f0; }
.sdl-btn {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid #e2e8f0; border-radius: 10px;
  padding: 10px 14px; margin-bottom: 8px; text-decoration: none; cursor: pointer;
  width: 100%; font-size: 13px; transition: border-color .2s;
}
.sdl-btn:last-child { margin-bottom: 0; }
.sdl-btn.primary { background: var(--mint); border-color: var(--mint); color: #fff; }
.sdl-btn.primary .sdl-btn-name { color: #fff; }
.sdl-btn.primary .sdl-btn-ver { color: rgba(255,255,255,.7); }
.sdl-btn:hover:not(.primary) { border-color: var(--mint); }
.sdl-btn-icon { flex-shrink: 0; }
.sdl-btn-name { font-size: 13px; font-weight: 600; color: var(--ink); }
.sdl-btn-ver { font-size: 11px; color: var(--muted); }
.stoc { display: flex; flex-direction: column; gap: 6px; }
.stoc-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--muted); padding: 4px 0;
  text-decoration: none; transition: color .2s;
}
.stoc-item:hover { color: var(--mint); }
.stoc-dot { width: 5px; height: 5px; background: var(--mint); border-radius: 50%; flex-shrink: 0; }
.sstat { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sstat-item { text-align: center; }
.sstat-num { font-size: 22px; font-weight: 800; color: var(--mint); }
.sstat-lbl { font-size: 11px; color: var(--muted); }
.side-security {
  background: rgba(16,185,129,.07); border: 1px solid rgba(16,185,129,.2);
  border-radius: 12px; padding: 14px 16px;
  font-size: 12px; color: var(--mint-d); line-height: 1.6;
}

/* Art bottom CTA */
.art-bottom-cta {
  background: linear-gradient(135deg, var(--charcoal) 0%, #0d1a14 100%);
  border-radius: 20px; padding: 48px 40px; text-align: center; margin-top: 48px;
}
.art-bottom-cta h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.art-bottom-cta p { font-size: 15px; color: rgba(255,255,255,.6); margin-bottom: 24px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .feat-grid { grid-template-columns: repeat(2,1fr); }
  .plat-grid { grid-template-columns: repeat(2,1fr); }
  .rev-grid { grid-template-columns: repeat(2,1fr); }
  .hero-inner { gap: 40px; }
  .deep-row { gap: 40px; }
}

@media (max-width: 900px) {
  .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .ftab-panel.active { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nm-links { display: none; }
  .nm-dl { display: none; }
  .nm-burger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-vis { display: none; }
  .hero-h1 { font-size: 36px; }
  .deep-row { grid-template-columns: 1fr; }
  .deep-row.flip { direction: ltr; }
  .guide-grid { grid-template-columns: 1fr; }
  .op-grid { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr; }
  .ver-grid { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .sec-items { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .sec-title { font-size: 28px; }
  .cta-h2 { font-size: 28px; }
  .stat-item { padding: 8px 24px; }
  .dl-specs { grid-template-columns: repeat(2,1fr); }
  .dl-main-btns { flex-direction: column; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  .sec { padding: 56px 0; }
  .hero { padding: 64px 0 56px; }
  .hero-h1 { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .plat-grid { grid-template-columns: 1fr; }
  .rev-grid { grid-template-columns: 1fr; }
  .dl-specs { grid-template-columns: 1fr; }
  .sec-banner { flex-direction: column; }
  .inline-cta { flex-direction: column; align-items: flex-start; }
}