/* ============================================================
   Design System: Clean Tech / Indigo-Violet
   Accent: #4f46e5 (indigo) + #7c3aed (violet)
   Background: #f8f9ff (near-white blue tint)
   Card Surface: #ffffff
   Text: #1e1b4b (deep indigo-black)
   ============================================================ */
:root {
  --indigo: #4f46e5;
  --indigo-dark: #3730a3;
  --indigo-light: #818cf8;
  --violet: #7c3aed;
  --violet-light: #a78bfa;
  --surface: #ffffff;
  --bg: #f5f6ff;
  --bg2: #eef0ff;
  --text: #1e1b4b;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --border: #e5e7f0;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(79,70,229,.08);
  --shadow-md: 0 8px 32px rgba(79,70,229,.12);
  --shadow-lg: 0 20px 60px rgba(79,70,229,.16);
  --transition: 0.2s ease;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

@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 float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse-ring { 0% { box-shadow: 0 0 0 0 rgba(79,70,229,.4); } 70% { box-shadow: 0 0 0 16px rgba(79,70,229,0); } 100% { box-shadow: 0 0 0 0 rgba(79,70,229,0); } }
@keyframes shimmer { 0% { background-position: -400px 0; } 100% { background-position: 400px 0; } }
@keyframes ticker { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── CONTAINER ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* ── TOPBAR NAV ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(79,70,229,.06);
}
.topbar-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 8px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--indigo);
  text-decoration: none;
  margin-right: auto;
  letter-spacing: -0.02em;
}
.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 6px 16px;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}
.nav-links a:hover { background: var(--bg2); color: var(--indigo); text-decoration: none; }
.nav-links a.active {
  background: var(--indigo);
  color: #fff;
}
.nav-cta {
  margin-left: 8px;
}
.nav-cta a {
  background: linear-gradient(135deg, var(--indigo), var(--violet)) !important;
  color: #fff !important;
  font-weight: 600 !important;
}
.nav-cta a:hover { opacity: .9; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
  font-family: var(--font);
}
.btn-primary {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  box-shadow: 0 4px 16px rgba(79,70,229,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,70,229,.45); opacity: 1; }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: var(--indigo);
  border: 2px solid var(--indigo);
}
.btn-outline:hover { background: var(--bg2); }
.btn-ghost {
  background: rgba(255,255,255,.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,.3);
}
.btn-ghost:hover { background: rgba(255,255,255,.25); }
.btn-lg { padding: 16px 36px; font-size: 1.1rem; border-radius: 12px; }
.btn-sm { padding: 8px 18px; font-size: .875rem; border-radius: 8px; }
.btn:disabled { opacity: .65; cursor: not-allowed; transform: none !important; }

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 45%, #4c1d95 100%);
  color: #fff;
  padding: 88px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--violet-light);
  padding: 5px 14px;
  border-radius: 99px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}
.hero-title .hl {
  background: linear-gradient(90deg, #a78bfa, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 40px; }
.hero-stats {
  display: flex;
  gap: 32px;
}
.hero-stat { text-align: center; }
.hero-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero-stat-lbl {
  font-size: .75rem;
  color: rgba(255,255,255,.55);
  margin-top: 4px;
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.app-mockup {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 24px;
  width: 100%;
  max-width: 420px;
  animation: float 5s ease-in-out infinite;
  backdrop-filter: blur(8px);
}
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.mockup-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.mockup-dot:nth-child(1) { background: #ff5f57; }
.mockup-dot:nth-child(2) { background: #ffbd2e; }
.mockup-dot:nth-child(3) { background: #28c840; }
.mockup-title-bar {
  flex: 1;
  background: rgba(255,255,255,.1);
  border-radius: 6px;
  height: 22px;
}
.mockup-toolbar {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.mockup-tool {
  background: rgba(255,255,255,.08);
  border-radius: 5px;
  height: 28px;
  flex: 1;
  min-width: 32px;
}
.mockup-body { display: flex; gap: 12px; }
.mockup-sidebar {
  width: 80px;
  flex-shrink: 0;
}
.mockup-sidebar-item {
  background: rgba(255,255,255,.06);
  border-radius: 5px;
  height: 20px;
  margin-bottom: 8px;
}
.mockup-sidebar-item.active { background: rgba(79,70,229,.5); }
.mockup-content { flex: 1; }
.mockup-line {
  background: rgba(255,255,255,.1);
  border-radius: 3px;
  height: 10px;
  margin-bottom: 8px;
}
.mockup-line.short { width: 60%; }
.mockup-line.medium { width: 80%; }
.mockup-line.accent { background: rgba(167,139,250,.4); }

/* ── SECTIONS ── */
.section { padding: 80px 0; }
.section-alt { background: var(--surface); }
.section-dark { background: linear-gradient(135deg, #1e1b4b, #312e81); color: #fff; }
.section-tag {
  display: inline-block;
  background: var(--bg2);
  color: var(--indigo);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.2;
  margin-bottom: 12px;
  color: var(--text);
}
.section-title.light { color: #fff; }
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 48px;
}
.section-subtitle.light { color: rgba(255,255,255,.65); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .section-subtitle { margin: 0 auto; margin-bottom: 0; }

/* ── FEATURE GRID ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--indigo), var(--violet));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--bg2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--indigo);
}
.feature-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.feature-desc {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── PLATFORM CARDS ── */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.platform-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}
.platform-card:hover { border-color: var(--indigo); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.platform-card.featured {
  border-color: var(--indigo);
  background: linear-gradient(135deg, #eef0ff, #f5f0ff);
}
.platform-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  color: var(--indigo);
}
.platform-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.platform-desc {
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* ── STATS STRIP ── */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--indigo);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 0;
}
.stat-item {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  padding: 32px 24px;
  text-align: center;
  color: #fff;
}
.stat-item:nth-child(even) { background: linear-gradient(135deg, var(--violet), var(--indigo)); }
.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-lbl { font-size: .85rem; color: rgba(255,255,255,.75); }

/* ── COMPARISON TABLE ── */
.compare-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.compare-table { width: 100%; border-collapse: collapse; background: var(--surface); min-width: 600px; }
.compare-table th {
  background: var(--indigo);
  color: #fff;
  padding: 16px 20px;
  font-size: .9rem;
  font-weight: 600;
  text-align: center;
}
.compare-table th:first-child { background: var(--indigo-dark); text-align: left; border-radius: var(--radius) 0 0 0; }
.compare-table th:last-child { border-radius: 0 var(--radius) 0 0; }
.compare-table td {
  padding: 14px 20px;
  font-size: .9rem;
  border-bottom: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
}
.compare-table td:first-child { text-align: left; font-weight: 600; color: var(--text); }
.compare-table tr:hover td { background: var(--bg); }
.compare-table tr:last-child td { border-bottom: none; }
.check-yes { color: #22c55e; }
.check-no { color: #ef4444; }
.check-partial { color: #f59e0b; }

/* ── FAQ ── */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: var(--surface);
  border: none;
  cursor: pointer;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-family: var(--font);
}
.faq-q:hover { background: var(--bg); }
.faq-arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition);
}
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--indigo); }
.faq-item.open .faq-q { color: var(--indigo); }
.faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  background: var(--surface);
}
.faq-item.open .faq-a { display: block; }

/* ── REVIEW CARDS ── */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
}
.review-quote {
  position: absolute;
  top: 20px;
  right: 24px;
  color: var(--indigo-light);
  opacity: .3;
}
.review-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 12px;
  color: #f59e0b;
}
.review-text {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}
.review-name { font-size: .9rem; font-weight: 600; color: var(--text); }
.review-role { font-size: .8rem; color: var(--text-light); }

/* ── STEPS ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--indigo), var(--violet));
  opacity: .25;
  z-index: 0;
}
.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 16px rgba(79,70,229,.35);
}
.step-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.step-desc { font-size: .875rem; color: var(--text-muted); line-height: 1.6; }

/* ── DOWNLOAD HERO ── */
.dl-hero {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 60%, #4c1d95 100%);
  color: #fff;
  padding: 64px 0 56px;
  text-align: center;
}
.dl-hero-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: 14px; }
.dl-hero-sub { font-size: 1.05rem; color: rgba(255,255,255,.7); max-width: 500px; margin: 0 auto 32px; line-height: 1.6; }

/* ── MAIN DOWNLOAD CARD ── */
.win-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: 40px;
}
.win-card-top {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  padding: 40px 48px;
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.win-icon-wrap {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,.15);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}
.win-info { flex: 1; }
.win-title { font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 6px; }
.win-meta { color: rgba(255,255,255,.7); font-size: .9rem; margin-bottom: 16px; }
.win-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.win-tag {
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 99px;
}
.win-card-body { padding: 32px 48px; }
.system-tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 28px; }
.sys-tab {
  padding: 10px 20px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font);
  transition: all var(--transition);
}
.sys-tab.active { color: var(--indigo); border-bottom-color: var(--indigo); }
.sys-panel { display: none; }
.sys-panel.active { display: block; }
.sys-req-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.sys-req-item { background: var(--bg); border-radius: 10px; padding: 14px 16px; }
.sys-req-label { font-size: .75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px; }
.sys-req-val { font-size: .9rem; font-weight: 600; color: var(--text); }

/* ── OTHER PLATFORM CARDS ── */
.other-platforms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.op-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;
  transition: all var(--transition);
}
.op-card:hover { border-color: var(--indigo); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.op-icon { width: 56px; height: 56px; margin-bottom: 12px; color: var(--indigo); }
.op-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.op-desc { font-size: .83rem; color: var(--text-muted); margin-bottom: 18px; flex: 1; line-height: 1.5; }

/* ── BADGE STRIP ── */
.badge-strip {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  padding: 24px 0;
}
.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg2);
  border-radius: 99px;
  padding: 8px 16px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--indigo);
}

/* ── SEO / ARTICLE ── */
.article-layout { display: grid; grid-template-columns: 220px 1fr; gap: 48px; align-items: start; }
.toc {
  position: sticky;
  top: 84px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.toc-title { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--indigo); margin-bottom: 12px; }
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 6px; }
.toc-list a { font-size: .88rem; color: var(--text-muted); text-decoration: none; display: block; padding: 3px 0 3px 10px; border-left: 2px solid transparent; transition: all var(--transition); }
.toc-list a:hover, .toc-list a.toc-active { color: var(--indigo); border-left-color: var(--indigo); }
.article-body { min-width: 0; }
.article-section { margin-bottom: 56px; scroll-margin-top: 84px; }
.article-section h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bg2);
}
.article-section h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin: 20px 0 10px; }
.article-section p { font-size: .95rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 14px; }
.article-section ul, .article-section ol { padding-left: 20px; margin-bottom: 14px; }
.article-section li { font-size: .95rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 6px; }
.article-section strong { color: var(--text); }
.highlight-box {
  background: linear-gradient(135deg, #eef0ff, #f5f0ff);
  border-left: 4px solid var(--indigo);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  margin: 20px 0;
}
.highlight-box p { margin-bottom: 0; }
.version-table { width: 100%; border-collapse: collapse; border-radius: var(--radius); overflow: hidden; margin: 16px 0; }
.version-table th { background: var(--indigo); color: #fff; padding: 12px 16px; font-size: .85rem; text-align: left; }
.version-table td { padding: 11px 16px; font-size: .875rem; border-bottom: 1px solid var(--border); color: var(--text-muted); }
.version-table tr:last-child td { border-bottom: none; }
.version-table tr:hover td { background: var(--bg); }
.cta-banner {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  color: #fff;
  margin: 48px 0;
}
.cta-banner h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; }
.cta-banner p { color: rgba(255,255,255,.75); margin-bottom: 24px; }

/* ── FOOTER ── */
.footer {
  background: #0f0c29;
  color: rgba(255,255,255,.5);
  padding: 40px 0 28px;
  text-align: center;
  font-size: .82rem;
  line-height: 1.8;
}
.footer-brand { color: rgba(255,255,255,.8); font-weight: 700; font-size: 1rem; margin-bottom: 12px; }
.footer-safe {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #22c55e;
  font-weight: 600;
  margin-bottom: 8px;
}
.footer-links { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.footer-links a { color: rgba(255,255,255,.4); font-size: .8rem; }
.footer-links a:hover { color: rgba(255,255,255,.7); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .other-platforms { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .toc { display: none; }
  .win-card-top { padding: 28px 24px; gap: 20px; }
  .win-card-body { padding: 24px; }
  .steps-grid::before { display: none; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 5px 10px; font-size: .82rem; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 56px 0 48px; }
}