/* ===== im冷钱包 全站公共样式表 ===== */
/* 深空蓝到极光紫渐变科技感设计 */

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

/* ===== CSS Variables ===== */
:root {
  --deep-space: #0a0e27;
  --space-blue: #0d1440;
  --aurora-purple: #6c3ce0;
  --aurora-blue: #3b82f6;
  --aurora-cyan: #06b6d4;
  --aurora-pink: #a855f7;
  --neon-green: #22c55e;
  --neon-orange: #f59e0b;
  --glass-bg: rgba(15, 23, 60, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover: rgba(255, 255, 255, 0.12);
  --text-primary: #f0f4ff;
  --text-secondary: #94a3c8;
  --text-muted: #5b6b8a;
  --gradient-main: linear-gradient(135deg, #0a0e27 0%, #1a1060 40%, #2d1b69 60%, #0d1440 100%);
  --gradient-card: linear-gradient(135deg, rgba(108,60,224,0.15), rgba(59,130,246,0.1));
  --gradient-accent: linear-gradient(135deg, #6c3ce0, #3b82f6);
  --gradient-warm: linear-gradient(135deg, #f59e0b, #ef4444);
  --shadow-glow: 0 0 30px rgba(108,60,224,0.3);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gradient-main);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ===== 粒子背景网格 ===== */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(108,60,224,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,60,224,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
}

body::after {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse 600px 600px at 20% 20%, rgba(108,60,224,0.12), transparent),
    radial-gradient(ellipse 500px 500px at 80% 80%, rgba(59,130,246,0.08), transparent),
    radial-gradient(ellipse 400px 400px at 50% 50%, rgba(168,85,247,0.06), transparent);
  z-index: 0;
  pointer-events: none;
  animation: auroraShift 20s ease-in-out infinite alternate;
}

@keyframes auroraShift {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.7; }
}

/* ===== Container ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ===== 磨砂玻璃卡片 ===== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.glass-card:hover {
  border-color: var(--glass-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

/* ===== Header / Navigation ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.3s ease;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-logo img {
  height: 32px;
  width: auto;
}

.brand-logo .brand-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 6px;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.25s ease;
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--text-primary);
  background: rgba(108,60,224,0.15);
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.nav-download-btn {
  background: var(--gradient-accent);
  color: #fff !important;
  padding: 8px 22px !important;
  border-radius: 50px !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 15px rgba(108,60,224,0.4);
  transition: all 0.3s ease !important;
}

.nav-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(108,60,224,0.5) !important;
  background: linear-gradient(135deg, #7c4ce8, #4b92f7) !important;
}

/* Mobile menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.mobile-toggle span {
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== Search Bar ===== */
.search-bar {
  background: rgba(15, 23, 60, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  padding: 12px 0;
  position: relative;
  z-index: 1;
}

.search-wrapper {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 12px 48px 12px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.3s ease;
}

.search-input:focus {
  border-color: var(--aurora-purple);
  box-shadow: 0 0 20px rgba(108,60,224,0.2);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-btn {
  position: absolute;
  right: 6px; top: 50%;
  transform: translateY(-50%);
  background: var(--gradient-accent);
  border: none;
  border-radius: 50%;
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #fff;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.search-btn:hover {
  box-shadow: 0 0 15px rgba(108,60,224,0.5);
}

.search-result-msg {
  display: none;
  text-align: center;
  padding: 10px;
  color: var(--aurora-cyan);
  font-size: 0.85rem;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 15px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--aurora-purple);
}

.breadcrumb span {
  margin: 0 8px;
  color: var(--text-muted);
}

/* ===== Hero Section ===== */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(108,60,224,0.15), transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 30%, #a78bfa 70%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 35px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--gradient-accent);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(108,60,224,0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(108,60,224,0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--aurora-purple);
  transform: translateY(-3px);
}

/* ===== Stats Bar ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 40px 0;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== Section Titles ===== */
.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-title p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(108,60,224,0.15);
  color: var(--aurora-purple);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ===== Content Grid ===== */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  padding: 20px 0;
}

.content-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  padding: 20px 0;
}

.content-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 24px;
  padding: 20px 0;
}

/* ===== Article Card ===== */
.article-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.35s ease;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(108,60,224,0.3);
}

.article-card .card-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.article-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .card-image img {
  transform: scale(1.08);
}

.article-card .card-body {
  padding: 22px;
}

.article-card .card-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(108,60,224,0.15);
  color: var(--aurora-purple);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.article-card h3, .article-card h4, .article-card h5, .article-card h6 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.5;
  color: var(--text-primary);
}

.article-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 14px;
}

.article-card .card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--glass-border);
}

.card-link {
  color: var(--aurora-blue);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

.card-link:hover {
  color: var(--aurora-purple);
}

/* ===== Dashboard ===== */
.dashboard-section {
  padding: 60px 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.dash-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.dash-card .dash-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.dash-card .dash-value {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.dash-card .dash-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.dash-card .dash-change {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 50px;
  display: inline-block;
}

.dash-change.up {
  background: rgba(34,197,94,0.15);
  color: var(--neon-green);
}

.dash-change.down {
  background: rgba(239,68,68,0.15);
  color: #ef4444;
}

/* Animated number */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-number {
  animation: countUp 0.8s ease forwards;
}

/* ===== Video Card ===== */
.video-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.video-card .video-thumb {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover .video-thumb {
  transform: scale(1.05);
}

.video-card .play-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-card:hover .play-overlay {
  opacity: 1;
}

.play-btn-icon {
  width: 60px; height: 60px;
  background: rgba(108,60,224,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(108,60,224,0.5);
  transition: transform 0.3s ease;
}

.video-card:hover .play-btn-icon {
  transform: scale(1.1);
}

.play-btn-icon::after {
  content: '';
  width: 0; height: 0;
  border-left: 18px solid #fff;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 4px;
}

.video-card .video-info {
  padding: 16px 20px;
  background: var(--glass-bg);
}

.video-card .video-info h5 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.video-card .video-info span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Expert & Review Cards ===== */
.expert-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.expert-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.expert-info h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.expert-info .expert-title {
  font-size: 0.8rem;
  color: var(--aurora-purple);
  margin-bottom: 8px;
}

.expert-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.review-stars {
  color: var(--neon-orange);
  font-size: 0.9rem;
  margin-bottom: 8px;
  letter-spacing: 2px;
}

/* ===== Share Buttons ===== */
.share-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 0;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.share-btn.wechat { background: #07c160; }
.share-btn.weibo { background: #e6162d; }
.share-btn.douyin { background: #161823; border: 1px solid #333; }
.share-btn.bilibili { background: #00a1d6; }

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* ===== Interactive Steps ===== */
.steps-container {
  max-width: 800px;
  margin: 0 auto;
}

.step-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 30px;
  justify-content: center;
}

.step-tab {
  padding: 10px 24px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.step-tab:hover {
  border-color: var(--aurora-purple);
  color: var(--text-primary);
}

.step-tab.active {
  background: var(--gradient-accent);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(108,60,224,0.4);
}

.step-content {
  display: none;
  animation: fadeIn 0.4s ease;
}

.step-content.active {
  display: block;
}

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

/* ===== Security Layers SVG ===== */
.security-layers {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  padding: 40px 0;
}

.layer-item {
  text-align: center;
  max-width: 280px;
}

.layer-icon {
  width: 100px; height: 100px;
  margin: 0 auto 16px;
  position: relative;
}

.layer-icon svg {
  width: 100%; height: 100%;
}

.layer-item h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.layer-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== CSS Tech Icons ===== */
.tech-icon {
  width: 48px; height: 48px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-shield {
  width: 40px; height: 46px;
  background: var(--gradient-accent);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-lock {
  width: 24px; height: 30px;
  border: 3px solid var(--aurora-cyan);
  border-radius: 50% 50% 4px 4px;
  position: relative;
}

.icon-lock::after {
  content: '';
  position: absolute;
  bottom: -8px; left: -5px;
  width: 30px; height: 20px;
  background: var(--aurora-cyan);
  border-radius: 3px;
}

.icon-chain {
  display: flex;
  gap: 2px;
}

.icon-chain span {
  width: 14px; height: 14px;
  border: 2px solid var(--aurora-purple);
  border-radius: 50%;
}

/* ===== Footer ===== */
.site-footer {
  background: rgba(5, 8, 22, 0.9);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 30px;
  margin-top: 80px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 12px;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}

.footer-col ul li a:hover {
  color: var(--aurora-purple);
}

.footer-contact {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 2;
}

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--aurora-purple);
}

/* ===== Section Spacing ===== */
.section {
  padding: 70px 0;
  position: relative;
  z-index: 1;
}

.section-alt {
  background: rgba(0,0,0,0.15);
}

/* ===== Lazy Load ===== */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.5s ease;
}

img[loading="lazy"].loaded,
img.loaded {
  opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .content-grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu a {
    padding: 12px 16px;
    font-size: 1rem;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .content-grid,
  .content-grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .dashboard-grid {
    grid-template-columns: 1fr 1fr;
  }

  .security-layers {
    flex-direction: column;
    align-items: center;
  }

  .step-tabs {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .glass-card {
    padding: 20px;
  }

  .container {
    padding: 0 15px;
  }
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.pt-20 { padding-top: 20px; }
.pb-20 { padding-bottom: 20px; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--deep-space); }
::-webkit-scrollbar-thumb {
  background: var(--aurora-purple);
  border-radius: 3px;
}

/* ===== Selection ===== */
::selection {
  background: rgba(108,60,224,0.4);
  color: #fff;
}

/* ===== Long Content ===== */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article-content h2, .article-content h3, .article-content h4,
.article-content h5, .article-content h6 {
  color: var(--text-primary);
  margin: 30px 0 15px;
  line-height: 1.4;
}

.article-content h2 { font-size: 1.6rem; }
.article-content h3 { font-size: 1.3rem; }
.article-content h4 { font-size: 1.15rem; }

.article-content p {
  margin-bottom: 18px;
}

.article-content ul, .article-content ol {
  padding-left: 24px;
  margin-bottom: 18px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 3px solid var(--aurora-purple);
  padding: 16px 20px;
  background: rgba(108,60,224,0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  font-style: italic;
}

.article-content img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 20px 0;
}

/* ===== Tags ===== */
.tag-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 16px 0;
}

.tag-item {
  padding: 4px 12px;
  background: rgba(108,60,224,0.1);
  border: 1px solid rgba(108,60,224,0.2);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--aurora-purple);
  text-decoration: none;
  transition: all 0.2s;
}

.tag-item:hover {
  background: rgba(108,60,224,0.2);
  border-color: var(--aurora-purple);
}

/* ===== Particle Animation ===== */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}