/* ===== CSS Variables & Reset ===== */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2035;
  --bg-card-hover: #1f2847;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --accent-dark: #d97706;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #1e293b;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --max-w: 1140px;
  --transition: .3s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }

/* ===== Navigation ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10,14,26,.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.3rem; font-weight: 700; letter-spacing: .5px;
}
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  font-size: .9rem; color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent); }

.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000 !important; font-weight: 600;
  padding: 8px 20px; border-radius: 8px;
  font-size: .88rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(245,158,11,.3);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 4px;
}
.menu-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text-primary); border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; top: -50%; left: -50%;
  width: 200%; height: 200%;
  background:
    radial-gradient(ellipse 600px 400px at 30% 30%, rgba(245,158,11,.07), transparent),
    radial-gradient(ellipse 500px 500px at 70% 60%, rgba(59,130,246,.05), transparent);
  animation: auroraFloat 20s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes auroraFloat {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-30px, 20px) rotate(2deg); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  padding: 6px 18px; margin-bottom: 28px;
  font-size: .82rem; color: var(--accent);
  letter-spacing: .5px;
}
.hero-badge::before {
  content: ""; display: block;
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800; line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -.5px;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent-light), var(--accent), #ef8e1c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(.95rem, 2vw, 1.1rem);
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000; font-weight: 700;
  padding: 14px 36px; border-radius: 12px;
  font-size: 1rem;
  transition: transform var(--transition), box-shadow var(--transition);
  border: none; cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(245,158,11,.3);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-primary); font-weight: 600;
  padding: 14px 36px; border-radius: 12px;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-stats {
  display: flex; gap: 32px;
  margin-top: 44px; padding-top: 28px;
  border-top: 1px solid var(--glass-border);
}
.hero-stats .stat { text-align: center; }
.hero-stats .stat-num {
  font-size: 1.5rem; font-weight: 800; color: var(--accent);
  display: block;
}
.hero-stats .stat-label {
  font-size: .76rem; color: var(--text-muted);
  margin-top: 2px;
}

/* ===== Hero Dynamic Visual ===== */
.hero-visual {
  position: relative;
  width: 100%; height: 480px;
  display: flex; align-items: center; justify-content: center;
}

/* Orbit rings */
.orbit-ring {
  position: absolute;
  border: 1px solid rgba(245,158,11,.1);
  border-radius: 50%;
  animation: orbitSpin linear infinite;
}
.orbit-ring:nth-child(1) { width: 320px; height: 320px; animation-duration: 25s; }
.orbit-ring:nth-child(2) { width: 420px; height: 420px; animation-duration: 35s; animation-direction: reverse; border-color: rgba(59,130,246,.08); }
.orbit-ring:nth-child(3) { width: 220px; height: 220px; animation-duration: 18s; border-style: dashed; border-color: rgba(245,158,11,.06); }

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

/* Floating node dots on orbits */
.orbit-node {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(245,158,11,.5);
}
.orbit-ring:nth-child(1) .orbit-node { top: -5px; left: 50%; }
.orbit-ring:nth-child(2) .orbit-node { bottom: -5px; right: 20%; background: #3b82f6; box-shadow: 0 0 12px rgba(59,130,246,.5); }
.orbit-ring:nth-child(3) .orbit-node { top: 50%; right: -5px; width: 8px; height: 8px; }

/* Central globe */
.globe-core {
  position: relative; z-index: 2;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(245,158,11,.25), rgba(245,158,11,.05) 60%, transparent);
  border: 2px solid rgba(245,158,11,.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.8rem;
  animation: globePulse 4s ease-in-out infinite;
}
@keyframes globePulse {
  0%, 100% { box-shadow: 0 0 30px rgba(245,158,11,.1), 0 0 60px rgba(245,158,11,.05); }
  50% { box-shadow: 0 0 50px rgba(245,158,11,.2), 0 0 100px rgba(245,158,11,.08); }
}

/* Floating info cards */
.float-card {
  position: absolute; z-index: 3;
  background: rgba(26,32,53,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  animation: floatY 5s ease-in-out infinite;
  white-space: nowrap;
}
.float-card .fc-label {
  font-size: .7rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.float-card .fc-value {
  font-size: 1.1rem;
  font-weight: 700;
}
.float-card .fc-value.green { color: #22c55e; }
.float-card .fc-value.amber { color: var(--accent); }
.float-card .fc-value.blue { color: #3b82f6; }

.float-card-1 { top: 8%; right: 2%; animation-delay: 0s; }
.float-card-2 { bottom: 18%; left: -2%; animation-delay: -1.8s; }
.float-card-3 { top: 50%; right: -5%; animation-delay: -3.2s; }
.float-card-4 { bottom: 5%; right: 18%; animation-delay: -0.8s; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* Speed bar animation */
.speed-bar-wrap {
  margin-top: 6px;
  width: 110px; height: 4px;
  background: rgba(255,255,255,.06);
  border-radius: 4px; overflow: hidden;
}
.speed-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #22c55e, var(--accent));
  animation: speedFill 3s ease-in-out infinite;
}
@keyframes speedFill {
  0% { width: 40%; }
  50% { width: 95%; }
  100% { width: 40%; }
}

/* Status dot */
.status-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  margin-right: 6px;
  animation: pulse 1.5s infinite;
}

/* Connection lines */
.conn-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(245,158,11,.15), transparent);
  height: 1px;
  animation: connPulse 4s ease-in-out infinite;
}
.conn-line-1 { width: 180px; top: 35%; left: -8%; transform: rotate(15deg); animation-delay: 0s; }
.conn-line-2 { width: 140px; bottom: 30%; right: -5%; transform: rotate(-20deg); animation-delay: -2s; }
.conn-line-3 { width: 100px; top: 20%; left: 20%; transform: rotate(40deg); animation-delay: -1s; }

@keyframes connPulse {
  0%, 100% { opacity: .3; }
  50% { opacity: 1; }
}

/* ===== Section Common ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800; margin-bottom: 14px;
}
.section-header p {
  color: var(--text-secondary);
  max-width: 540px; margin: 0 auto;
  font-size: 1rem;
}

/* ===== Features (3 cards) ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 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(--accent), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: rgba(245,158,11,.2);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,.3);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(245,158,11,.15), rgba(245,158,11,.05));
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 1.15rem; font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-secondary);
  font-size: .92rem; line-height: 1.7;
}

/* ===== Streaming & AI Support ===== */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.support-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: all var(--transition);
}
.support-card:hover {
  border-color: rgba(245,158,11,.2);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0,0,0,.25);
}
.support-card h3 {
  font-size: 1.2rem; font-weight: 700;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.support-tags {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.support-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: .85rem; color: var(--text-secondary);
  transition: all var(--transition);
}
.support-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Pricing ===== */
.pricing-section { background: var(--bg-secondary); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px; align-items: start;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}
.pricing-card.popular {
  border-color: var(--accent);
  box-shadow: 0 0 60px rgba(245,158,11,.1);
  transform: scale(1.04);
}
.pricing-card.popular::before {
  content: "最受欢迎";
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000; font-weight: 700; font-size: .75rem;
  padding: 4px 18px; border-radius: 50px;
  letter-spacing: 1px;
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,.35);
}
.pricing-card.popular:hover {
  transform: scale(1.04) translateY(-4px);
}

.pricing-card h3 {
  font-size: 1.1rem; font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.pricing-price {
  margin-bottom: 8px;
}
.pricing-price .currency {
  font-size: 1.2rem; font-weight: 700;
  vertical-align: super; margin-right: 2px;
}
.pricing-price .amount {
  font-size: 3rem; font-weight: 800;
  line-height: 1;
}
.pricing-price .period {
  font-size: .88rem; color: var(--text-muted);
  margin-left: 2px;
}
.pricing-desc {
  color: var(--text-muted); font-size: .85rem;
  margin-bottom: 28px; padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.pricing-features {
  text-align: left; margin-bottom: 28px;
}
.pricing-features li {
  display: flex; align-items: center; gap: 10px;
  font-size: .9rem; color: var(--text-secondary);
  padding: 7px 0;
}
.pricing-features li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700; font-size: .85rem;
  flex-shrink: 0;
}

.btn-pricing {
  display: block; width: 100%; padding: 13px;
  border-radius: 10px; font-size: .95rem; font-weight: 700;
  text-align: center;
  transition: all var(--transition);
  border: none; cursor: pointer;
}
.btn-pricing.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000;
}
.btn-pricing.primary:hover {
  box-shadow: 0 8px 28px rgba(245,158,11,.3);
  transform: translateY(-1px);
}
.btn-pricing.outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.btn-pricing.outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== FAQ ===== */
.faq-list { max-width: 740px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  width: 100%; background: none; border: none;
  color: var(--text-primary);
  font-size: 1rem; font-weight: 600;
  text-align: left;
  padding: 22px 40px 22px 0;
  cursor: pointer;
  position: relative;
  font-family: inherit;
  line-height: 1.5;
}
.faq-question::after {
  content: "+";
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; font-weight: 300;
  color: var(--text-muted);
  transition: transform var(--transition), color var(--transition);
}
.faq-item.active .faq-question::after {
  content: "−";
  color: var(--accent);
}
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
}
.faq-answer-inner {
  padding: 0 0 22px;
  color: var(--text-secondary);
  font-size: .92rem; line-height: 1.8;
}

/* ===== Reviews ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}
.review-card:hover {
  border-color: rgba(245,158,11,.15);
  transform: translateY(-3px);
}
.review-stars { color: var(--accent); font-size: .9rem; margin-bottom: 14px; letter-spacing: 2px; }
.review-text {
  color: var(--text-secondary);
  font-size: .92rem; line-height: 1.7;
  margin-bottom: 18px;
}
.review-author {
  display: flex; align-items: center; gap: 12px;
}
.review-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .9rem; color: #000;
}
.review-name {
  font-weight: 600; font-size: .9rem;
}
.review-role {
  font-size: .78rem; color: var(--text-muted);
}

/* ===== CTA Banner ===== */
.cta-banner {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  position: relative;
}
.cta-banner::before {
  content: "";
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(245,158,11,.08), transparent);
  pointer-events: none;
}
.cta-banner h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800; margin-bottom: 14px;
  position: relative;
}
.cta-banner p {
  color: var(--text-secondary);
  margin-bottom: 32px; font-size: 1rem;
  position: relative;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 48px 0 28px;
}
.footer-links {
  display: flex; justify-content: center;
  gap: 36px; margin-bottom: 28px; flex-wrap: wrap;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: .9rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .8rem;
}

/* ===== Blog Cards (Index Page) ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  border-color: rgba(245,158,11,.2);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,.3);
}
.blog-card-body {
  padding: 24px; flex: 1;
  display: flex; flex-direction: column;
}
.blog-card-tag {
  display: inline-block;
  background: rgba(245,158,11,.1);
  color: var(--accent);
  font-size: .72rem; font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
  align-self: flex-start;
  letter-spacing: .5px;
}
.blog-card-body h3 {
  font-size: 1rem; font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card-body h3 a {
  transition: color var(--transition);
}
.blog-card-body h3 a:hover {
  color: var(--accent);
}
.blog-card-excerpt {
  color: var(--text-secondary);
  font-size: .85rem; line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.blog-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.blog-card-date {
  font-size: .75rem;
  color: var(--text-muted);
}
.blog-card-link {
  font-size: .82rem; font-weight: 600;
  color: var(--accent);
  transition: all var(--transition);
}
.blog-card-link:hover {
  color: var(--accent-light);
}

/* ===== Article Page ===== */
.article-hero {
  padding: 120px 20px 48px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.article-hero .container { max-width: 780px; }
.article-tag {
  display: inline-block;
  background: rgba(245,158,11,.12);
  color: var(--accent);
  font-size: .75rem; font-weight: 600;
  padding: 5px 14px; border-radius: 6px;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.article-hero h1 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 800; line-height: 1.4;
  margin-bottom: 16px;
}
.article-meta {
  display: flex; gap: 20px; flex-wrap: wrap;
  color: var(--text-muted);
  font-size: .82rem;
}
.article-body {
  padding: 48px 0 80px;
}
.article-body .container { max-width: 780px; }
.article-content h2 {
  font-size: 1.3rem; font-weight: 700;
  margin: 36px 0 16px;
  color: var(--text-primary);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.article-content h2:first-child { margin-top: 0; }
.article-content p {
  color: var(--text-secondary);
  font-size: .95rem; line-height: 1.9;
  margin-bottom: 16px;
}
.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
.article-content a:hover { color: var(--accent-light); }
.article-content ul,
.article-content ol {
  padding-left: 22px;
  margin-bottom: 16px;
}
.article-content li {
  color: var(--text-secondary);
  font-size: .95rem; line-height: 1.9;
  margin-bottom: 6px;
}
.article-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-content { order: 1; }
  .hero-visual { order: 2; height: 380px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .float-card-3 { right: 2%; }
  .float-card-2 { left: 5%; }
}

@media (max-width: 900px) {
  .features-grid,
  .pricing-grid,
  .reviews-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .support-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.popular {
    transform: none;
  }
  .pricing-card.popular:hover {
    transform: translateY(-4px);
  }
}

@media (max-width: 768px) {
  .nav-links { 
    display: none;
    position: fixed; top: 64px; left: 0; right: 0;
    background: rgba(10,14,26,.96);
    backdrop-filter: blur(18px);
    flex-direction: column;
    padding: 24px 20px;
    gap: 16px;
    border-bottom: 1px solid var(--glass-border);
  }
  .nav-links.open { display: flex; }
  .menu-toggle { display: flex; }

  .hero { padding: 100px 20px 60px; min-height: auto; }
  .hero-visual { height: 300px; }
  .orbit-ring:nth-child(1) { width: 220px; height: 220px; }
  .orbit-ring:nth-child(2) { width: 280px; height: 280px; }
  .orbit-ring:nth-child(3) { width: 160px; height: 160px; }
  .globe-core { width: 90px; height: 90px; font-size: 2rem; }
  .float-card { padding: 10px 14px; }
  .float-card .fc-value { font-size: .95rem; }
  .float-card .fc-label { font-size: .65rem; }

  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .hero-stats .stat { min-width: 80px; }

  .section { padding: 64px 0; }
  .section-header { margin-bottom: 36px; }

  .footer-links { gap: 20px; }
}

/* ===== Subpage Styles ===== */
.subpage-hero {
  padding: 120px 20px 60px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.subpage-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 10px;
}
.subpage-hero p {
  color: var(--text-secondary);
  font-size: 1rem;
}
.subpage-content {
  max-width: 780px; margin: 0 auto;
  padding: 60px 20px 100px;
}
.subpage-content h2 {
  font-size: 1.35rem; font-weight: 700;
  margin: 40px 0 16px;
  color: var(--accent);
}
.subpage-content h2:first-child { margin-top: 0; }
.subpage-content p,
.subpage-content li {
  color: var(--text-secondary);
  font-size: .95rem; line-height: 1.9;
  margin-bottom: 12px;
}
.subpage-content ul {
  padding-left: 20px;
  list-style: disc;
  margin-bottom: 16px;
}
.subpage-content ul li { padding: 3px 0; }
/* ===== Article Styles ===== */
.article-hero {
  padding: 130px 20px 50px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.article-hero .container {
  max-width: 860px;
}
.article-tag {
  display: inline-block;
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.35;
  max-width: 880px;
  margin: 0 auto 16px;
  color: var(--text-primary);
}
.article-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.88rem;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-body {
  padding: 60px 20px 100px;
}
.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text-secondary);
}
.article-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 44px 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.article-content h2::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent);
}
.article-content h3 {
  font-size: 1.18rem;
  font-weight: 600;
  color: var(--accent-light);
  margin: 28px 0 12px;
}
.article-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 18px;
}
.article-content ul, .article-content ol {
  margin: 0 0 22px 24px;
  color: var(--text-secondary);
  line-height: 1.85;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; font-size: 0.98rem; }
.article-content strong { color: var(--text-primary); }
.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
.article-content a:hover {
  color: var(--accent-light);
}
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg-card);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: var(--text-secondary);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.article-content th, .article-content td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
  font-size: 0.92rem;
}
.article-content th {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent);
  font-weight: 600;
}
.article-content td {
  color: var(--text-secondary);
}
.article-content code {
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent-light);
  font-family: Consolas, Monaco, monospace;
}
.article-content pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin: 20px 0;
  overflow-x: auto;
}
.article-content pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}
.article-content .tip-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 24px 0;
}
.article-content .tip-box h4 {
  color: var(--accent);
  margin-bottom: 8px;
  font-size: 1rem;
}
.article-content .tip-box p:last-child {
  margin-bottom: 0;
}
.article-cta-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08), rgba(217, 119, 6, 0.15));
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius);
  padding: 28px;
  margin: 36px 0;
  text-align: center;
}
.article-cta-box h3 {
  color: var(--accent-light);
  margin-bottom: 10px;
  font-size: 1.25rem;
}
.article-cta-box p {
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.article-cta-box .btn-cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000 !important;
  font-weight: 700;
  padding: 10px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition);
}
.article-cta-box .btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.3);
}