@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #146ef5;
  --primary-light: #3b89ff;
  --primary-dark: #0055d4;
  --primary-900: #003a8c;
  --secondary-purple: #7a3dff;
  --secondary-pink: #ed52cb;
  --secondary-green: #00d722;
  --secondary-orange: #ff6b00;
  --secondary-yellow: #ffae13;
  --secondary-red: #ee1d36;
  --near-black: #080808;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #363636;
  --gray-600: #4b5563;
  --gray-500: #5a5a5a;
  --gray-400: #6b7280;
  --gray-300: #ababab;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --border: #d8d8d8;
  --border-hover: #898989;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-card: rgba(0,0,0,0) 0px 84px 24px, rgba(0,0,0,0.01) 0px 54px 22px, rgba(0,0,0,0.04) 0px 30px 18px, rgba(0,0,0,0.08) 0px 13px 13px, rgba(0,0,0,0.09) 0px 3px 7px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--near-black);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
  padding: 6px 16px;
  background: rgba(20, 110, 245, 0.08);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--gray-900);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title .title-big {
  font-size: 1.4em;
  font-weight: 800;
  letter-spacing: 2px;
}

.section-title .title-sub {
  font-size: 0.6em;
  font-weight: 600;
  letter-spacing: 0;
}

.section-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--gray-500);
  max-width: 680px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  box-shadow: 0 4px 14px rgba(20, 110, 245, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(20, 110, 245, 0.45);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-ghost {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

/* ========== NAV ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: rgba(10, 22, 40, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  padding: 10px 0;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  transition: var(--transition);
}

.nav.scrolled .nav-logo {
  color: var(--near-black);
}

.nav-logo svg {
  width: 36px;
  height: 36px;
}

.nav-logo img {
  height: 36px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  position: relative;
  padding: 4px 0;
}

.nav.scrolled .nav-links a {
  color: var(--gray-600);
}

.nav-links a:hover {
  color: var(--white);
}

.nav.scrolled .nav-links a:hover {
  color: var(--primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 40px;
}

.nav-cta .btn {
  padding: 10px 24px;
  font-size: 14px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.nav.scrolled .mobile-toggle span {
  background: var(--near-black);
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0a1628 0%, #0d2847 30%, #0f3460 60%, #146ef5 100%);
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
}

.hero-bg-glow-1 {
  top: -200px;
  right: -100px;
  background: var(--secondary-purple);
}

.hero-bg-glow-2 {
  bottom: -200px;
  left: -100px;
  background: var(--primary);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  animation: float-particle 8s infinite ease-in-out;
}

@keyframes float-particle {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.3; }
  25% { transform: translateY(-30px) translateX(15px); opacity: 0.8; }
  50% { transform: translateY(-60px) translateX(-10px); opacity: 0.5; }
  75% { transform: translateY(-30px) translateX(20px); opacity: 0.7; }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  color: var(--white);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

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

.hero-title .gradient-text {
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255,255,255,0.75);
  margin-bottom: 40px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

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

.hero-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-illustration {
  width: 100%;
  max-width: 520px;
  position: relative;
}

.hero-illustration svg {
  width: 100%;
  height: auto;
}

.hero-float-card {
  position: absolute;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  color: var(--white);
  animation: float 6s ease-in-out infinite;
}

.hero-float-card-1 {
  top: 10%;
  right: 0;
  animation-delay: 0s;
}

.hero-float-card-2 {
  bottom: 15%;
  left: 0;
  animation-delay: 2s;
}

.hero-float-card-3 {
  top: 50%;
  right: 0;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.hero-float-card .card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.hero-float-card .card-icon.blue { background: rgba(59, 137, 255, 0.3); }
.hero-float-card .card-icon.purple { background: rgba(122, 61, 255, 0.3); }
.hero-float-card .card-icon.green { background: rgba(0, 215, 34, 0.3); }

.hero-float-card .card-value {
  font-size: 20px;
  font-weight: 700;
}

.hero-float-card .card-label {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
}

/* ========== PLATFORMS ========== */
.platforms {
  padding: 80px 0;
  background: var(--gray-50);
  position: relative;
}

.platforms-header {
  text-align: center;
  margin-bottom: 48px;
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.platform-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.platform-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.platform-card .platform-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
}

.platform-card .platform-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.platform-card .platform-desc {
  font-size: 12px;
  color: var(--gray-400);
}

/* ========== TRENDS ========== */
.trends {
  padding: 100px 0;
  background: var(--white);
  position: relative;
}

.trends-header {
  text-align: center;
  margin-bottom: 64px;
}

.trends-header .section-desc {
  margin: 0 auto;
}

.trends-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.trend-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  transition: var(--transition);
  overflow: hidden;
}

.trend-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary-purple));
  opacity: 0;
  transition: var(--transition);
}

.trend-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.trend-card:hover::before {
  opacity: 1;
}

.trend-card .trend-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(20,110,245,0.1), rgba(122,61,255,0.1));
}

.trend-card .trend-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.trend-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 12px;
  line-height: 1.3;
}

.trend-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-500);
}

/* ========== DATA ========== */
.data-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #0a1628 0%, #0d2847 50%, #146ef5 100%);
  position: relative;
  overflow: hidden;
}

.data-section .hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.data-header {
  text-align: center;
  margin-bottom: 56px;
  position: relative;
  z-index: 2;
}

.data-header .section-label {
  background: rgba(255,255,255,0.1);
  color: var(--white);
}

.data-header .section-title {
  color: var(--white);
}

.data-header .section-desc {
  color: rgba(255,255,255,0.7);
  margin: 0 auto;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.data-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

.data-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.data-card .data-value {
  font-size: 42px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 8px;
}

.data-card .data-value .accent {
  color: #60a5fa;
}

.data-card .data-label {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}

.data-card .data-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: #34d399;
  background: rgba(52, 211, 153, 0.15);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* ========== ADVANTAGES ========== */
.advantages {
  padding: 100px 0;
  background: var(--white);
}

.advantages-header {
  text-align: center;
  margin-bottom: 64px;
}

.advantages-header .section-desc {
  margin: 0 auto;
}

.advantages-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.advantage-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: start;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 36px;
  transition: var(--transition);
}

.advantage-item:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
  transform: translateX(4px);
}

.advantage-number {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary), var(--secondary-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}

.advantage-content h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.advantage-content p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.advantage-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.advantage-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: rgba(20, 110, 245, 0.06);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-full);
}

.advantage-visual {
  width: 120px;
  height: 120px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-visual svg {
  width: 100%;
  height: 100%;
}

/* ========== FEATURES ========== */
.features {
  padding: 100px 0;
  background: var(--gray-50);
}

.features-header {
  text-align: center;
  margin-bottom: 48px;
}

.features-header .section-desc {
  margin: 0 auto;
}

.features-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.features-tab {
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-500);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.features-tab:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.features-tab.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(20, 110, 245, 0.3);
}

.features-panel {
  display: none;
}

.features-panel.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.feature-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.feature-detail-visual {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}

.feature-detail-visual svg {
  width: 100%;
  max-width: 320px;
  height: auto;
}

.feature-detail-content h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.feature-detail-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--gray-700);
}

.feature-list-item svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-sub-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.feature-sub-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  text-align: center;
  transition: var(--transition);
}

.feature-sub-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.feature-sub-card .sub-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 10px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(20,110,245,0.1), rgba(122,61,255,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-sub-card .sub-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.feature-sub-card .sub-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-800);
}

.feature-sub-card .sub-desc {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ========== PRICING ========== */
.pricing {
  padding: 100px 0;
  background: var(--white);
}

.pricing-header {
  text-align: center;
  margin-bottom: 64px;
}

.pricing-header .section-desc {
  margin: 0 auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}

.pricing-card {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
}

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

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(20, 110, 245, 0.2);
}

.pricing-card.popular:hover {
  box-shadow: 0 12px 40px rgba(20, 110, 245, 0.3);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary-purple));
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card .plan-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.pricing-card .plan-desc {
  font-size: 14px;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.pricing-card .plan-price {
  font-size: 44px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.pricing-card .plan-price .currency {
  font-size: 24px;
  font-weight: 600;
}

.pricing-card .plan-price .period {
  font-size: 16px;
  font-weight: 400;
  color: var(--gray-400);
}

.pricing-card .plan-features {
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pricing-card .plan-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--gray-600);
}

.pricing-card .plan-feature svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 1px;
}

.pricing-card .plan-feature.highlight {
  color: var(--primary);
  font-weight: 600;
}

.pricing-card .plan-feature.highlight svg {
  color: var(--secondary-orange);
}

.pricing-card .btn {
  width: 100%;
}

/* ========== STEPS ========== */
.steps {
  padding: 100px 0;
  background: var(--gray-50);
}

.steps-header {
  text-align: center;
  margin-bottom: 64px;
}

.steps-header .section-desc {
  margin: 0 auto;
}

.steps-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.steps-flow::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary-purple), var(--secondary-pink), var(--primary));
  z-index: 0;
}

.step-card {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 12px;
}

.step-number {
  width: 96px;
  height: 96px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  position: relative;
}

.step-card:nth-child(2) .step-number { border-color: var(--secondary-purple); color: var(--secondary-purple); }
.step-card:nth-child(3) .step-number { border-color: var(--secondary-pink); color: var(--secondary-pink); }
.step-card:nth-child(4) .step-number { border-color: var(--secondary-green); color: var(--secondary-green); }

.step-card h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-500);
}

/* ========== CTA ========== */
.cta {
  padding: 100px 0;
  background: linear-gradient(135deg, #0a1628 0%, #0d2847 50%, #146ef5 100%);
  position: relative;
  overflow: hidden;
}

.cta .hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: 44px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.2;
}

.cta-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--gray-900);
  padding: 64px 0 0;
  color: var(--gray-300);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand .footer-logo svg {
  width: 32px;
  height: 32px;
}

.footer-brand .footer-logo img {
  height: 32px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-400);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--gray-400);
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 13px;
  color: var(--gray-500);
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
  color: var(--gray-300);
}

/* ========== NEWS PAGE ========== */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #0a1628 0%, #0d2847 50%, #146ef5 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero .hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}

.page-hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  position: relative;
  z-index: 2;
}

.news-categories {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.news-category {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-500);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.news-category:hover,
.news-category.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.news-section {
  padding: 64px 0 100px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}

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

.news-card .news-thumb {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #eef2ff, #dbeafe);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.news-card .news-thumb svg {
  width: 60px;
  height: 60px;
  color: var(--primary);
  opacity: 0.4;
}

.news-card .news-thumb .news-cat-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: var(--primary);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.news-card .news-body {
  padding: 24px;
}

.news-card .news-date {
  font-size: 13px;
  color: var(--gray-400);
  margin-bottom: 8px;
}

.news-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card h3:hover {
  color: var(--primary);
}

.news-card .news-excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray-500);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.news-card .news-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.news-card .news-link svg {
  width: 16px;
  height: 16px;
  transition: var(--transition);
}

.news-card:hover .news-link svg {
  transform: translateX(4px);
}

.news-pagination {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}

.news-pagination ul.pagination {
  display: flex;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
  align-items: center;
}

.news-pagination ul.pagination li {
  list-style: none;
}

.news-pagination ul.pagination li.page-item a.page-link,
.news-pagination ul.pagination li.page-item span.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
}

.news-pagination ul.pagination li.page-item a.page-link:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(20,110,245,0.05);
}

.news-pagination ul.pagination li.page-item.active a.page-link,
.news-pagination ul.pagination li.page-item.active span {
  color: var(--white);
  background: var(--primary);
  border-color: var(--primary);
}

.news-pagination ul.pagination li.page-item.disabled span.page-link {
  color: var(--gray-300);
  background: var(--gray-50);
  border-color: var(--gray-200);
  cursor: not-allowed;
}

.news-pagination ul.pagination li form.jumpto {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}

.news-pagination ul.pagination li form.jumpto input.page_number {
  width: 50px;
  height: 36px;
  text-align: center;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 14px;
  outline: none;
}

.news-pagination ul.pagination li form.jumpto input.page_number:focus {
  border-color: var(--primary);
}

.news-pagination ul.pagination li form.jumpto input.submit {
  height: 36px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--white);
  background: var(--primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.news-pagination ul.pagination li form.jumpto input.submit:hover {
  background: var(--primary-dark);
}

/* ========== NEWS DETAIL ========== */
.news-detail {
  padding: 40px 0 100px;
}

.news-detail-header {
  margin-bottom: 40px;
}

.news-detail-header .news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.news-detail-header .news-meta .cat {
  padding: 4px 12px;
  background: rgba(20,110,245,0.1);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.news-detail-header .news-meta .date {
  font-size: 14px;
  color: var(--gray-400);
}

.news-detail-header h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.3;
  margin-bottom: 16px;
}

.news-detail-header .news-summary {
  font-size: 18px;
  line-height: 1.7;
  color: var(--gray-500);
  padding: 20px 24px;
  background: var(--gray-50);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.news-detail-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray-700);
}

.news-detail-body h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--gray-900);
  margin: 36px 0 16px;
}

.news-detail-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--gray-900);
  margin: 28px 0 12px;
}

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

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

.news-detail-body li {
  margin-bottom: 8px;
  list-style: disc;
}

.news-detail-body ol li {
  list-style: decimal;
}

.news-detail-body blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--gray-50);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--gray-600);
}

.news-detail-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-200);
}

.news-detail-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-500);
  transition: var(--transition);
}

.news-detail-nav a:hover {
  color: var(--primary);
}

/* ========== ABOUT PAGE ========== */
.about-hero-section {
  padding: 64px 0 80px;
  background: var(--white);
}

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

.about-hero-text h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 20px;
  line-height: 1.2;
}

.about-hero-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.about-hero-visual {
  background: linear-gradient(135deg, #eef2ff, #dbeafe);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.about-mission {
  padding: 80px 0;
  background: var(--gray-50);
}

.about-mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.about-mission-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}

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

.about-mission-card .mission-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(20,110,245,0.1), rgba(122,61,255,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-mission-card .mission-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.about-mission-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.about-mission-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-500);
}

.about-team {
  padding: 80px 0;
  background: var(--white);
}

.about-team-header {
  text-align: center;
  margin-bottom: 48px;
}

.about-team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.about-team-card {
  text-align: center;
  padding: 28px 20px;
  border-radius: var(--radius-xl);
  transition: var(--transition);
}

.about-team-card:hover {
  background: var(--gray-50);
}

.about-team-card .team-avatar {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
}

.about-team-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.about-team-card .team-role {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}

.about-timeline {
  padding: 80px 0;
  background: var(--gray-50);
}

.about-timeline-header {
  text-align: center;
  margin-bottom: 48px;
}

.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--gray-200);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  padding: 0 0 40px;
  display: flex;
  align-items: flex-start;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border: 3px solid var(--white);
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.timeline-content {
  width: 45%;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
}

.timeline-content .year {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}

.timeline-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ========== CONTACT PAGE ========== */
.contact-section {
  padding: 64px 0 100px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info {
  padding-right: 24px;
}

.contact-info h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-500);
  margin-bottom: 36px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-method .method-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(20,110,245,0.1), rgba(122,61,255,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method .method-icon svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
}

.contact-method h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.contact-method p {
  font-size: 14px;
  color: var(--gray-500);
}

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.contact-form-card h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--gray-900);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
  font-family: var(--font);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(20, 110, 245, 0.1);
  background: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

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

.news-detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.news-detail-main {
  min-width: 0;
}

.news-detail-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-widget {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.sidebar-title svg {
  color: var(--primary);
  flex-shrink: 0;
}

.sidebar-related-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-100);
  text-decoration: none;
  transition: var(--transition);
}

.sidebar-related-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.sidebar-related-item:hover .related-title {
  color: var(--primary);
}

.related-tag {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  color: var(--white);
  margin-top: 2px;
}

.related-tag.trend { background: var(--primary); }
.related-tag.guide { background: #22c55e; }
.related-tag.case { background: var(--secondary-purple); }
.related-tag.update { background: #f59e0b; }

.related-title {
  font-size: 14px;
  line-height: 1.5;
  color: var(--gray-700);
  transition: var(--transition);
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar-tag {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  color: var(--gray-600);
  text-decoration: none;
  transition: var(--transition);
}

.sidebar-tag:hover {
  background: var(--primary);
  color: var(--white);
}

.sidebar-cta {
  text-align: center;
  background: linear-gradient(135deg, #eef2ff, #f5f3ff);
  border-color: #c7d2fe;
}

.sidebar-cta-icon {
  margin-bottom: 16px;
}

.sidebar-cta-icon svg {
  width: 48px;
  height: 48px;
}

.sidebar-cta h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.sidebar-cta p {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 20px;
}

.read-time {
  font-size: 13px;
  color: var(--gray-400);
}

.news-meta .read-time::before {
  content: "·";
  margin: 0 8px;
  color: var(--gray-300);
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.wechat-modal.open {
  opacity: 1;
  visibility: visible;
}

.wechat-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.wechat-modal-content {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-2xl);
  padding: 40px;
  text-align: center;
  max-width: 360px;
  width: 90%;
  transform: scale(0.9);
  transition: transform 0.3s ease;
  box-shadow: var(--shadow-xl);
}

.wechat-modal.open .wechat-modal-content {
  transform: scale(1);
}

.wechat-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  color: var(--gray-500);
  cursor: pointer;
  transition: var(--transition);
}

.wechat-modal-close:hover {
  background: var(--gray-200);
  color: var(--gray-700);
}

.wechat-modal-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
}

.wechat-qr {
  display: inline-block;
  padding: 16px;
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

.wechat-qr svg {
  display: block;
}

.wechat-modal-tip {
  font-size: 14px;
  color: var(--gray-500);
}

/* ========== ANIMATIONS ========== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-desc { margin: 0 auto 40px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .hero-title { font-size: 44px; }
  .platforms-grid { grid-template-columns: repeat(3, 1fr); }
  .trends-grid { grid-template-columns: repeat(2, 1fr); }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-item { grid-template-columns: auto 1fr; }
  .advantage-visual { display: none; }
  .feature-detail { grid-template-columns: 1fr; }
  .feature-detail-visual { order: -1; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .steps-flow { grid-template-columns: repeat(2, 1fr); }
  .steps-flow::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .about-hero-grid { grid-template-columns: 1fr; }
  .about-team-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section-title { font-size: 36px; }
  .hero-title { font-size: 36px; }
  .nav-links, .nav-cta { display: none; }
  .mobile-toggle { display: flex; }
  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .trends-grid { grid-template-columns: 1fr; }
  .data-grid { grid-template-columns: 1fr; }
  .feature-sub-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-flow { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .about-mission-grid { grid-template-columns: 1fr; }
  .about-team-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .news-detail-layout { grid-template-columns: 1fr; }
  .news-detail-sidebar { position: static; }
}

@media (max-width: 479px) {
  .hero-title { font-size: 30px; }
  .section-title { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .hero-stat { flex: 0 0 calc(50% - 10px); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-content h2 { font-size: 30px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

/* ========== MOBILE NAV ========== */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 22, 40, 0.98);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  font-size: 24px;
  font-weight: 600;
  color: var(--white);
}

.mobile-nav-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--white);
}

/* ========== SCROLL TO TOP ========== */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 100;
  box-shadow: 0 4px 14px rgba(20, 110, 245, 0.35);
}

.scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(20, 110, 245, 0.45);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}