*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1a1a1a;
  --border-color: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.15);
  --text-primary: #ffffff;
  --text-secondary: rgba(255,255,255,0.6);
  --text-muted: rgba(255,255,255,0.4);
  --accent-red: #ff3b30;
  --accent-orange: #ff6b35;
  --accent-yellow: #ffb300;
  --accent-green: #00c853;
  --accent-blue: #2979ff;
  --accent-purple: #7c4dff;
  --gradient-red: linear-gradient(135deg, #ff3b30 0%, #ff6b35 100%);
  --gradient-green: linear-gradient(135deg, #00c853 0%, #00e676 100%);
  --gradient-blue: linear-gradient(135deg, #2979ff 0%, #00b0ff 100%);
  --gradient-purple: linear-gradient(135deg, #7c4dff 0%, #448aff 100%);
  --gradient-orange: linear-gradient(135deg, #ff6b35 0%, #ffb300 100%);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  background: rgba(10,10,10,0.8);
  backdrop-filter: blur(20px);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, rgba(255,59,48,0.2), rgba(255,100,80,0.08));
  border: 1px solid rgba(255,59,48,0.3);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  color: #ff3b30;
}

.logo-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.nav-links a.active {
  color: var(--accent-orange);
  background: rgba(255,59,48,0.1);
}

.nav-btn {
  padding: 10px 24px;
  background: var(--gradient-red);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(255,59,48,0.4);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 40px 80px;
  background: 
    radial-gradient(ellipse 50% 30% at 20% 30%, rgba(255,59,48,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 40% 25% at 80% 70%, rgba(255,107,53,0.08) 0%, transparent 50%);
}

.hero-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 80px;
  max-width: 1200px;
  width: 100%;
}

.hero-left {
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255,59,48,0.1);
  border: 1px solid rgba(255,59,48,0.2);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-orange);
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-greeting {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -1px;
}

.hero-name {
  font-size: clamp(48px, 7vw, 72px);
  font-weight: 900;
  margin-bottom: 20px;
  letter-spacing: -2px;
  background: var(--gradient-red);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-tags {
  display: flex;
  gap: 12px;
  margin-bottom: 36px;
  flex-wrap: nowrap;
  justify-content: flex-start;
}

.hero-tag {
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.hero-tag:hover {
  border-color: rgba(255,59,48,0.4);
  color: var(--accent-orange);
  background: rgba(255,59,48,0.05);
}

@media (max-width: 640px) {
  .hero-tags {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }
  .hero-tag {
    padding: 8px 14px;
    font-size: 12px;
  }
}

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

.hero-right {
  flex-shrink: 0;
}

.hero-card {
  position: relative;
  width: 380px;
}

.hero-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius-xl) + 1px);
  background: var(--gradient-red);
  z-index: -1;
  opacity: 0.6;
  filter: blur(1px);
}

.hero-card-inner {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
}

.hero-card-avatar-wrap {
  position: relative;
  width: 100%;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-card-avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255,107,53,0.5);
  box-shadow: 0 0 40px rgba(255,59,48,0.3);
  position: relative;
  z-index: 1;
}

.hero-card-glow {
  position: absolute;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255,59,48,0.3) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%,100%{ transform: scale(1); opacity: 0.5; }
  50%    { transform: scale(1.15); opacity: 1; }
}

.hero-card-body {
  padding: 16px 28px 24px;
}

.hero-card-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-align: center;
}

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

.hero-card-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  gap: 20px;
}

.hero-card-item .label {
  color: var(--text-muted);
  flex-shrink: 0;
}

.hero-card-item .value {
  color: var(--text-primary);
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

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

@media (max-width: 1024px) {
  .hero-container {
    flex-direction: column;
    text-align: center;
    gap: 48px;
  }
  .hero-left {
    max-width: 100%;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-tags, .hero-actions {
    justify-content: center;
  }
  .hero-right {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 0 20px;
  }
  .hero-card {
    width: 100%;
    max-width: 380px;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 100px 16px 60px;
  }
  .hero-actions {
    flex-direction: row !important;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    gap: 12px;
  }
  .hero-actions button {
    flex: 1;
    padding: 14px 20px;
    font-size: 14px;
    white-space: nowrap;
  }
  .hero-right {
    padding: 0 12px;
  }
  .hero-card {
    width: 100%;
    max-width: none;
  }
  .hero-card-avatar-wrap {
    height: 180px;
  }
  .hero-card-avatar {
    width: 140px;
    height: 140px;
  }
  .hero-card-glow {
    width: 170px;
    height: 170px;
  }
  .hero-card-body {
    padding: 0 20px 20px;
  }
  .hero-card-name {
    font-size: 1.25rem;
    margin-bottom: 14px;
    margin-top: -8px;
  }
  .hero-card-info {
    gap: 10px;
  }
  .hero-card-item {
    font-size: 0.88rem;
    padding: 11px 14px;
    gap: 16px;
  }
}

.btn-primary {
  padding: 14px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.btn-gradient {
  padding: 14px 32px;
  background: var(--gradient-red);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,59,48,0.4);
}

.section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--text-primary);
}

.section-title .hl {
  background: var(--gradient-red);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s ease;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-red);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.feature-card:hover {
  border-color: rgba(255,59,48,0.5);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(255,59,48,0.2);
}

.feature-card:hover::before {
  opacity: 0.08;
}

.feature-card.red:hover {
  border-color: rgba(255,59,48,0.6);
  box-shadow: 0 20px 40px rgba(255,59,48,0.25);
}
.feature-card.green:hover {
  border-color: rgba(0,200,83,0.6);
  box-shadow: 0 20px 40px rgba(0,200,83,0.2);
}
.feature-card.green::before { background: var(--gradient-green); }
.feature-card.blue:hover {
  border-color: rgba(41,121,255,0.6);
  box-shadow: 0 20px 40px rgba(41,121,255,0.2);
}
.feature-card.blue::before { background: var(--gradient-blue); }
.feature-card.purple:hover {
  border-color: rgba(124,77,255,0.6);
  box-shadow: 0 20px 40px rgba(124,77,255,0.2);
}
.feature-card.purple::before { background: var(--gradient-purple); }
.feature-card.orange:hover {
  border-color: rgba(255,107,53,0.6);
  box-shadow: 0 20px 40px rgba(255,107,53,0.2);
}
.feature-card.orange::before { background: var(--gradient-orange); }

.feature-card > * {
  position: relative;
  z-index: 1;
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-card.red .feature-icon {
  background: linear-gradient(135deg, rgba(255,59,48,0.15), rgba(255,100,80,0.05));
  border: 1px solid rgba(255,59,48,0.2);
}
.feature-card.red .feature-icon svg { color: #ff3b30; }
.feature-card.green .feature-icon {
  background: linear-gradient(135deg, rgba(0,200,83,0.15), rgba(0,230,100,0.05));
  border: 1px solid rgba(0,200,83,0.2);
}
.feature-card.green .feature-icon svg { color: #00c853; }
.feature-card.blue .feature-icon {
  background: linear-gradient(135deg, rgba(41,121,255,0.15), rgba(0,176,255,0.05));
  border: 1px solid rgba(41,121,255,0.2);
}
.feature-card.blue .feature-icon svg { color: #2979ff; }
.feature-card.purple .feature-icon {
  background: linear-gradient(135deg, rgba(124,77,255,0.15), rgba(68,138,255,0.05));
  border: 1px solid rgba(124,77,255,0.2);
}
.feature-card.purple .feature-icon svg { color: #7c4dff; }
.feature-card.orange .feature-icon {
  background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(255,179,0,0.05));
  border: 1px solid rgba(255,107,53,0.2);
}
.feature-card.orange .feature-icon svg { color: #ff6b35; }

.feature-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.story-section {
  background: var(--bg-secondary);
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.story-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s ease;
  overflow: hidden;
}

.story-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.story-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-red);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.story-card:hover::before {
  opacity: 0.08;
}

.story-card:hover {
  border-color: rgba(255,59,48,0.5);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(255,59,48,0.2);
}

.story-card > * {
  position: relative;
  z-index: 1;
}

.story-num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 40px;
  font-weight: 900;
  background: var(--gradient-red);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.15;
  line-height: 1;
}

.story-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.story-icon svg {
  width: 22px;
  height: 22px;
}

/* 故事卡片不同颜色 */
.story-card.red .story-icon { background: linear-gradient(135deg, rgba(255,59,48,0.12), rgba(255,100,80,0.04)); border: 1px solid rgba(255,59,48,0.1); }
.story-card.red .story-icon svg { color: #ff3b30; }
.story-card.red:hover { border-color: rgba(255,59,48,0.5); box-shadow: 0 20px 40px rgba(255,59,48,0.2); }
.story-card.red::before { background: var(--gradient-red); }

.story-card.blue .story-icon { background: linear-gradient(135deg, rgba(41,121,255,0.12), rgba(0,176,255,0.04)); border: 1px solid rgba(41,121,255,0.1); }
.story-card.blue .story-icon svg { color: #2979ff; }
.story-card.blue:hover { border-color: rgba(41,121,255,0.5); box-shadow: 0 20px 40px rgba(41,121,255,0.2); }
.story-card.blue::before { background: var(--gradient-blue); }

.story-card.green .story-icon { background: linear-gradient(135deg, rgba(0,200,83,0.12), rgba(0,230,100,0.04)); border: 1px solid rgba(0,200,83,0.1); }
.story-card.green .story-icon svg { color: #00c853; }
.story-card.green:hover { border-color: rgba(0,200,83,0.5); box-shadow: 0 20px 40px rgba(0,200,83,0.2); }
.story-card.green::before { background: var(--gradient-green); }

.story-card.purple .story-icon { background: linear-gradient(135deg, rgba(124,77,255,0.12), rgba(68,138,255,0.04)); border: 1px solid rgba(124,77,255,0.1); }
.story-card.purple .story-icon svg { color: #7c4dff; }
.story-card.purple:hover { border-color: rgba(124,77,255,0.5); box-shadow: 0 20px 40px rgba(124,77,255,0.2); }
.story-card.purple::before { background: var(--gradient-purple); }

.story-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-section {
  padding: 80px 24px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s ease;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-red);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.project-card:hover::before {
  opacity: 0.08;
}

.project-card:hover {
  border-color: rgba(255,59,48,0.5);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(255,59,48,0.2);
}

.project-card > * {
  position: relative;
  z-index: 1;
}

.project-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.project-icon svg {
  width: 24px;
  height: 24px;
}

.project-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

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

/* 项目卡片不同颜色 */
.project-card.red .project-icon { background: linear-gradient(135deg, rgba(255,59,48,0.12), rgba(255,100,80,0.04)); border: 1px solid rgba(255,59,48,0.1); }
.project-card.red .project-icon svg { color: #ff3b30; }
.project-card.red:hover { border-color: rgba(255,59,48,0.5); box-shadow: 0 20px 40px rgba(255,59,48,0.2); }
.project-card.red::before { background: var(--gradient-red); }

.project-card.green .project-icon { background: linear-gradient(135deg, rgba(0,200,83,0.12), rgba(0,230,100,0.04)); border: 1px solid rgba(0,200,83,0.1); }
.project-card.green .project-icon svg { color: #00c853; }
.project-card.green:hover { border-color: rgba(0,200,83,0.5); box-shadow: 0 20px 40px rgba(0,200,83,0.2); }
.project-card.green::before { background: var(--gradient-green); }

.project-card.blue .project-icon { background: linear-gradient(135deg, rgba(41,121,255,0.12), rgba(0,176,255,0.04)); border: 1px solid rgba(41,121,255,0.1); }
.project-card.blue .project-icon svg { color: #2979ff; }
.project-card.blue:hover { border-color: rgba(41,121,255,0.5); box-shadow: 0 20px 40px rgba(41,121,255,0.2); }
.project-card.blue::before { background: var(--gradient-blue); }

.project-card.purple .project-icon { background: linear-gradient(135deg, rgba(124,77,255,0.12), rgba(68,138,255,0.04)); border: 1px solid rgba(124,77,255,0.1); }
.project-card.purple .project-icon svg { color: #7c4dff; }
.project-card.purple:hover { border-color: rgba(124,77,255,0.5); box-shadow: 0 20px 40px rgba(124,77,255,0.2); }
.project-card.purple::before { background: var(--gradient-purple); }

.project-card.orange .project-icon { background: linear-gradient(135deg, rgba(255,107,53,0.12), rgba(255,179,0,0.04)); border: 1px solid rgba(255,107,53,0.1); }
.project-card.orange .project-icon svg { color: #ff6b35; }
.project-card.orange:hover { border-color: rgba(255,107,53,0.5); box-shadow: 0 20px 40px rgba(255,107,53,0.2); }
.project-card.orange::before { background: var(--gradient-orange); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
}

.contact-card {
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-red);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.contact-card:hover::before {
  opacity: 0.08;
}

.contact-card:hover {
  border-color: rgba(255,59,48,0.5);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(255,59,48,0.2);
}

.contact-card > * {
  position: relative;
  z-index: 1;
}

/* 联系卡片不同颜色 */
.contact-card.red:hover { border-color: rgba(255,59,48,0.5); box-shadow: 0 20px 40px rgba(255,59,48,0.2); }
.contact-card.red .contact-icon { background: linear-gradient(135deg, rgba(255,59,48,0.12), rgba(255,100,80,0.04)); border-color: rgba(255,59,48,0.1); }
.contact-card.red .contact-icon svg { color: #ff3b30; }

.contact-card.green:hover { border-color: rgba(0,200,83,0.5); box-shadow: 0 20px 40px rgba(0,200,83,0.2); }
.contact-card.green .contact-icon { background: linear-gradient(135deg, rgba(0,200,83,0.12), rgba(0,230,100,0.04)); border-color: rgba(0,200,83,0.1); }
.contact-card.green .contact-icon svg { color: #00c853; }

.contact-card.blue:hover { border-color: rgba(41,121,255,0.5); box-shadow: 0 20px 40px rgba(41,121,255,0.2); }
.contact-card.blue .contact-icon { background: linear-gradient(135deg, rgba(41,121,255,0.12), rgba(0,176,255,0.04)); border-color: rgba(41,121,255,0.1); }
.contact-card.blue .contact-icon svg { color: #2979ff; }

.contact-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-info .ci-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-info .ci-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Consolas', monospace;
}

.cta-section {
  padding: 100px 24px;
  text-align: center;
  background: 
    radial-gradient(ellipse 40% 30% at 50% 100%, rgba(255,59,48,0.1) 0%, transparent 50%);
}

.cta-box {
  max-width: 600px;
  margin: 0 auto;
  padding: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
}

.cta-avatar {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,59,48,0.2), rgba(255,100,80,0.08));
  border: 1px solid rgba(255,59,48,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.cta-avatar svg {
  width: 32px;
  height: 32px;
  color: #ff3b30;
}

.cta-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.cta-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.site-footer {
  padding: 40px 24px;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  width: 28px;
  height: 28px;
  font-size: 14px;
}

.footer-logo span {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.footer-beian {
  font-size: 12px;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .navbar {
    padding: 0 20px;
  }
  .nav-links {
    display: none;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .story-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }
  .btn-primary, .btn-gradient {
    width: 100%;
    justify-content: center;
  }
}

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

/* 卡片浮动动画 */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.hero-card {
  animation: float 4s ease-in-out infinite;
}

/* 卡片入场动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-card, .story-card, .contact-card {
  animation: fadeInUp 0.6s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }

/* 滚动显示动画 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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

/* 连接线动画 */
@keyframes lineGrow {
  from { width: 0; }
  to { width: 100%; }
}

.section-label::after {
  content: '';
  display: block;
  width: 0;
  height: 2px;
  background: var(--gradient-red);
  margin: 8px auto 0;
  transition: width 0.8s ease-out;
}

.section-header.active .section-label::after {
  width: 60px;
}