/* Digital Aurora Theme - OKX Landing Page */
/* Deep space dark with electric blue, neon cyan, violet accents */

:root {
  --bg-dark: #0a0e27;
  --bg-dark2: #0f1535;
  --bg-card: #111936;
  --bg-light: #f8fafc;
  --primary: #3b82f6;
  --primary-light: #60a5fa;
  --cyan: #06b6d4;
  --cyan-light: #67e8f9;
  --violet: #8b5cf6;
  --violet-light: #a78bfa;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #06b6d4 50%, #8b5cf6 100%);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-dark: #1e293b;
  --border: #1e3a5f;
  --success: #10b981;
  --warning: #f59e0b;
  --shadow: 0 25px 50px -12px rgba(59, 130, 246, 0.25);
  --shadow-cyan: 0 0 40px rgba(6, 182, 212, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.3); }
  50% { box-shadow: 0 0 40px rgba(6, 182, 212, 0.5); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-brand-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
  font-size: 20px;
}

.nav-brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 10px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(59, 130, 246, 0.1);
}

.nav-link.active {
  color: white;
  background: var(--accent-gradient);
}

.nav-dl {
  padding: 12px 24px;
  background: var(--accent-gradient);
  color: white;
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  margin-left: 16px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.nav-dl:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: 0.3s;
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg-dark2);
  border-bottom: 1px solid var(--border);
  padding: 16px;
}

.nav-mobile.show {
  display: block;
}

.nav-mobile .nav-link {
  display: block;
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 100px 24px 120px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
  animation: gradient-shift 15s ease infinite;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50px;
  font-size: 14px;
  color: var(--primary-light);
  margin-bottom: 32px;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-glow 2s infinite;
}

.hero-h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-h1 .hl {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 30px 60px -10px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--primary);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat-num {
  font-size: 36px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-stat-lbl {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Section Base */
.sec {
  padding: 100px 24px;
}

.sec-alt {
  background: var(--bg-dark2);
}

.sec-light {
  background: var(--bg-light);
  color: var(--text-dark);
}

.sec-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.sec-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.sec-eyebrow.ey-blue { color: var(--primary); }
.sec-eyebrow.ey-cyan { color: var(--cyan); }
.sec-eyebrow.ey-violet { color: var(--violet); }

.sec-eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.ey-blue .sec-eyebrow-dot { background: var(--primary); }
.ey-cyan .sec-eyebrow-dot { background: var(--cyan); }
.ey-violet .sec-eyebrow-dot { background: var(--violet); }

.sec-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
}

.sec-title-light {
  color: var(--text-dark);
}

.sec-sub {
  font-size: 18px;
  color: var(--text-secondary);
}

.sec-sub-light {
  color: #64748b;
}

/* Feature Cards */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.feat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transition: transform 0.3s;
}

.feat-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-cyan);
}

.feat-card:hover::before {
  transform: scaleX(1);
}

.feat-icon {
  width: 60px;
  height: 60px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feat-icon svg {
  width: 30px;
  height: 30px;
}

.feat-icon.fi-blue svg { stroke: var(--primary); }
.feat-icon.fi-cyan svg { stroke: var(--cyan); }
.feat-icon.fi-violet svg { stroke: var(--violet); }
.feat-icon.fi-green svg { stroke: var(--success); }
.feat-icon.fi-amber svg { stroke: var(--warning); }

.feat-name {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feat-desc {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Platform Cards */
.plat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.plat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s;
}

.plat-card:hover {
  transform: translateY(-5px);
  border-color: var(--cyan);
}

.plat-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(59, 130, 246, 0.1) 100%);
}

.plat-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-gradient);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 16px;
}

.plat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.plat-icon svg {
  width: 40px;
  height: 40px;
  stroke: var(--primary-light);
}

.plat-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.plat-ver {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.plat-btn {
  width: 100%;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.plat-btn:hover {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
}

/* Deep Feature Rows */
.deep-wrap {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.deep-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.deep-row.reverse {
  direction: rtl;
}

.deep-row.reverse > * {
  direction: ltr;
}

.deep-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.deep-chip.dc-blue {
  background: rgba(59, 130, 246, 0.15);
  color: var(--primary-light);
}

.deep-chip.dc-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: var(--cyan-light);
}

.deep-chip.dc-violet {
  background: rgba(139, 92, 246, 0.15);
  color: var(--violet-light);
}

.deep-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.deep-desc {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.deep-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.deep-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
}

.deep-list-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.deep-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.dv-panel-title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dv-bar-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.dv-bar-label {
  width: 80px;
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.dv-bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg-dark);
  border-radius: 4px;
  overflow: hidden;
}

.dv-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s ease;
}

.dvbf-blue { background: var(--primary); width: 95%; }
.dvbf-cyan { background: var(--cyan); width: 88%; }
.dvbf-violet { background: var(--violet); width: 82%; }
.dvbf-green { background: var(--success); width: 90%; }

.dv-bar-val {
  width: 50px;
  font-size: 13px;
  font-weight: 600;
  text-align: right;
}

.dv-stat-row {
  display: flex;
  gap: 32px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.dv-stat {
  text-align: center;
}

.dv-stat-num {
  font-size: 28px;
  font-weight: 700;
}

.dv-stat-num.c-blue { color: var(--primary); }
.dv-stat-num.c-cyan { color: var(--cyan); }
.dv-stat-num.c-violet { color: var(--violet); }

.dv-stat-lbl {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Stats Band */
.stats-band {
  background: var(--accent-gradient);
  padding: 48px 24px;
}

.stats-row {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 32px;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: white;
  margin-bottom: 8px;
}

.stat-lbl {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* Reviews */
.rev-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.rev-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}

.rev-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.rev-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
  font-size: 18px;
}

.rev-avatar.av-blue { background: linear-gradient(135deg, var(--primary), var(--cyan)); }
.rev-avatar.av-cyan { background: linear-gradient(135deg, var(--cyan), var(--success)); }
.rev-avatar.av-violet { background: linear-gradient(135deg, var(--violet), var(--primary)); }
.rev-avatar.av-green { background: linear-gradient(135deg, var(--success), #34d399); }
.rev-avatar.av-amber { background: linear-gradient(135deg, var(--warning), #fbbf24); }
.rev-avatar.av-rose { background: linear-gradient(135deg, #f43f5e, #fb7185); }

.rev-meta {
  flex: 1;
}

.rev-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.rev-role {
  font-size: 13px;
  color: var(--text-secondary);
}

.rev-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.rev-stars svg {
  width: 16px;
  height: 16px;
  fill: var(--warning);
}

.rev-text {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 15px;
}

/* Comparison Table */
.cmp-wrap {
  max-width: 1000px;
  margin: 0 auto;
  overflow-x: auto;
}

.cmp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.cmp-table th,
.cmp-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.cmp-table th {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cmp-table td:first-child {
  font-weight: 500;
}

.cmp-table tr:hover td {
  background: rgba(59, 130, 246, 0.05);
}

.cmp-hl {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-light);
  font-weight: 600;
}

.yes { color: var(--success); font-weight: 600; }
.no { color: #ef4444; }
.partial { color: var(--warning); }

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.faq-q {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.3s;
}

.faq-q:hover {
  background: rgba(59, 130, 246, 0.05);
}

.faq-chevron {
  width: 20px;
  height: 20px;
  transition: transform 0.3s;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-a {
  max-height: 500px;
}

.faq-a-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* CTA Banner */
.cta-banner {
  padding: 80px 24px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-desc {
  color: var(--text-secondary);
  font-size: 18px;
  margin-bottom: 32px;
}

/* Download Page Specific */
.dl-hero {
  padding: 80px 24px 60px;
  text-align: center;
}

.dl-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 50px;
  font-size: 14px;
  color: var(--success);
  margin-bottom: 24px;
}

.dl-hero-title {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 16px;
}

.dl-hero-sub {
  color: var(--text-secondary);
  font-size: 18px;
  max-width: 500px;
  margin: 0 auto;
}

/* Windows Main Card */
.dl-win-wrap {
  max-width: 700px;
  margin: 0 auto 64px;
}

.dl-win-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}

.dl-win-top {
  height: 4px;
  background: var(--accent-gradient);
}

.dl-win-head {
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--border);
}

.dl-win-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dl-win-icon svg {
  width: 32px;
  height: 32px;
  stroke: white;
}

.dl-win-info {
  flex: 1;
}

.dl-win-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.dl-win-meta {
  font-size: 14px;
  color: var(--text-secondary);
}

.dl-win-body {
  padding: 32px;
}

.dl-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.dl-spec {
  text-align: center;
}

.dl-spec-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.dl-spec-val {
  font-size: 16px;
  font-weight: 600;
}

.dl-sec-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 8px;
  font-size: 14px;
  color: var(--success);
  margin-bottom: 24px;
}

.dl-win-btns {
  display: flex;
  gap: 16px;
}

.dl-win-btns .btn {
  flex: 1;
  justify-content: center;
}

/* Other Platform Cards */
.op-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto 64px;
}

.op-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  text-align: center;
}

.op-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 14px;
}

.op-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary-light);
}

.op-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.op-ver {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.op-steps {
  text-align: left;
  margin-bottom: 20px;
}

.op-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.op-step-n {
  width: 24px;
  height: 24px;
  background: var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  flex-shrink: 0;
}

/* Guide Grid */
.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto 64px;
}

.guide-col-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.guide-col-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.guide-col-dot.gd-blue { background: var(--primary); }
.guide-col-dot.gd-cyan { background: var(--cyan); }

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.gstep {
  display: flex;
  gap: 16px;
}

.gstep-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.gstep-num.gn-blue {
  background: rgba(59, 130, 246, 0.2);
  color: var(--primary-light);
}

.gstep-num.gn-cyan {
  background: rgba(6, 182, 212, 0.2);
  color: var(--cyan-light);
}

.gstep-body {
  flex: 1;
}

.gstep-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.gstep-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Requirement Cards */
.req-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto 64px;
}

.req-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.req-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 12px;
}

.req-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary-light);
}

.req-title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.req-val {
  font-size: 16px;
  font-weight: 600;
}

/* Version List */
.ver-list {
  max-width: 800px;
  margin: 0 auto 64px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ver-item {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.ver-dot-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ver-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.ver-dot.vd-blue { background: var(--primary); }
.ver-dot.vd-cyan { background: var(--cyan); }
.ver-dot.vd-violet { background: var(--violet); }

.ver-line {
  flex: 1;
  width: 2px;
  background: var(--border);
  margin-top: 8px;
}

.ver-body {
  flex: 1;
}

.ver-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.ver-num {
  font-size: 18px;
  font-weight: 700;
}

.ver-tag {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.ver-tag.vt-stable {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.ver-tag.vt-beta {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.ver-date {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.ver-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* Security Banner */
.sec-banner {
  max-width: 800px;
  margin: 0 auto 64px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.sec-banner-icon {
  width: 56px;
  height: 56px;
  background: rgba(16, 185, 129, 0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sec-banner-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--success);
}

.sec-banner-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.sec-banner-desc {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Article Page */
.art-hero {
  padding: 80px 24px 60px;
  text-align: center;
}

.art-hero-inner {
  max-width: 800px;
  margin: 0 auto;
}

.art-hero-crumb {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.art-hero-crumb a {
  color: var(--primary-light);
  text-decoration: none;
}

.art-hero-title {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.art-hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
}

/* Keyword Tags */
.kw-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto 48px;
}

.kw {
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Article Layout */
.art-layout {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  padding: 0 24px 80px;
}

.art-body {
  color: var(--text-secondary);
  line-height: 1.9;
}

.art-body h2 {
  color: var(--text-primary);
  font-size: 28px;
  font-weight: 700;
  margin: 48px 0 24px;
}

.art-body h3 {
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 600;
  margin: 32px 0 16px;
}

.art-body p {
  margin-bottom: 20px;
}

.art-body ul,
.art-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.art-body li {
  margin-bottom: 12px;
}

.art-body strong {
  color: var(--text-primary);
}

/* Inline CTA */
.inline-cta {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  margin: 32px 0;
}

.inline-cta-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.inline-cta-desc {
  margin-bottom: 20px;
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.sbox {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.sbox-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.sdl-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 12px;
  text-decoration: none;
}

.sdl-btn:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--primary);
}

.sdl-btn.primary {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
}

.sdl-btn.primary:hover {
  opacity: 0.9;
}

.sdl-btn-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 10px;
}

.sdl-btn-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--primary-light);
}

.sdl-btn-info {
  flex: 1;
  text-align: left;
}

.sdl-btn-name {
  font-weight: 600;
  font-size: 14px;
}

.sdl-btn-ver {
  font-size: 12px;
  color: var(--text-secondary);
}

.stoc {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stoc a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.3s;
}

.stoc a:hover {
  color: var(--primary-light);
}

.sstat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.sstat-item {
  text-align: center;
  padding: 16px;
  background: var(--bg-dark);
  border-radius: 10px;
}

.sstat-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 4px;
}

.sstat-lbl {
  font-size: 12px;
  color: var(--text-secondary);
}

.side-security {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 10px;
  font-size: 13px;
  color: var(--success);
}

.side-security svg {
  width: 20px;
  height: 20px;
  stroke: var(--success);
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  background: var(--bg-dark2);
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
}

.footer-inner {
  max-width: 800px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.footer-brand-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
}

.footer-security {
  color: var(--success);
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.footer-security svg {
  width: 16px;
  height: 16px;
  stroke: var(--success);
}

.footer-note {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Responsive */
@media (max-width: 1024px) {
  .art-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
  .deep-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .deep-row.reverse {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-dl {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .hero-h1 {
    font-size: 36px;
  }
  .sec-title {
    font-size: 28px;
  }
  .feat-grid {
    grid-template-columns: 1fr;
  }
  .plat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .rev-grid {
    grid-template-columns: 1fr;
  }
  .stats-row {
    flex-direction: column;
    gap: 24px;
  }
  .dl-specs {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .dl-win-btns {
    flex-direction: column;
  }
  .op-grid {
    grid-template-columns: 1fr;
  }
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .req-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sec-banner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .plat-grid {
    grid-template-columns: 1fr;
  }
  .req-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }
}

/* News Section Styles */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.news-date {
  font-size: 13px;
  color: var(--cyan);
  font-weight: 500;
  margin-bottom: 12px;
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 12px;
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s;
}

.news-link:hover {
  color: var(--primary-light);
}

.news-more {
  text-align: center;
  margin-top: 40px;
}

.ey-cyan .sec-eyebrow-dot {
  background: var(--cyan);
}

/* News List Page */
.news-list {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

.news-item {
  display: flex;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.news-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.news-item-date {
  flex-shrink: 0;
  width: 80px;
  text-align: center;
}

.news-item-day {
  font-size: 32px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.news-item-month {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.news-item-content {
  flex: 1;
}

.news-item-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.news-item-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Article Page */
.article-wrap {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 24px;
}

.article-header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border);
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.article-date {
  font-size: 14px;
  color: var(--cyan);
  font-weight: 500;
}

.article-category {
  font-size: 12px;
  padding: 4px 12px;
  background: var(--bg-dark2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 32px 0 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 24px 0 12px;
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
  margin-bottom: 24px;
  transition: color 0.3s;
}

.article-back:hover {
  color: var(--primary);
}

/* Responsive News */
@media (max-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
  .news-item {
    flex-direction: column;
    gap: 16px;
  }
  .news-item-date {
    display: flex;
    align-items: baseline;
    gap: 8px;
    width: auto;
    text-align: left;
  }
  .news-item-day {
    font-size: 24px;
  }
  .article-title {
    font-size: 24px;
  }
}