:root {
  --bg: #0a0e1a;
  --bg-secondary: #0f1624;
  --card: rgba(255,255,255,0.04);
  --card-hover: rgba(255,255,255,0.08);
  --primary: #f4c542;
  --primary-dark: #d4a832;
  --accent: #5fd3a6;
  --accent-dark: #4fb88a;
  --text: #f0f4ff;
  --text-secondary: #b4c1d8;
  --muted: #7a8aa5;
  --border: rgba(255,255,255,0.08);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.2);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
}

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

html {
  scroll-behavior: auto;
}

body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 15%, rgba(244,197,66,0.15), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(95,211,166,0.12), transparent 45%),
    radial-gradient(circle at 40% 80%, rgba(244,197,66,0.08), transparent 40%);
  pointer-events: none;
  z-index: 0;
  animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

/* Header & Hero */
header.hero {
  position: relative;
  min-height: 75vh;
  padding: 100px 6vw 80px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,14,26,0.95), rgba(15,22,36,0.7));
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--bg), transparent);
  z-index: 1;
}

nav.nav {
  position: fixed;
  top: 20px;
  left: 6vw;
  right: 6vw;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.02);
  padding: 16px 28px;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.logo {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  letter-spacing: 1.5px;
  color: var(--primary);
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(244,197,66,0.3);
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-links a {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

.nav-links a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--card-hover);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-links a:hover::before {
  opacity: 1;
}

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

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  animation: fadeInUp 1s ease;
}

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

.hero .tag {
  display: inline-block;
  color: var(--accent);
  letter-spacing: 2px;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  background: rgba(95,211,166,0.1);
  border: 1px solid rgba(95,211,166,0.3);
  border-radius: 24px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  margin: 0 0 20px;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 750px;
  line-height: 1.8;
  margin-bottom: 32px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn:hover::before {
  opacity: 1;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #0a0e1a;
  box-shadow: 0 4px 16px rgba(244,197,66,0.4);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(244,197,66,0.5);
}

.btn.ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.btn.ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.btn.full {
  width: 100%;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.meta span {
  color: var(--muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.meta span::before {
  content: '•';
  color: var(--accent);
  font-size: 18px;
}

/* Sections */
main {
  position: relative;
  z-index: 1;
}

.section {
  padding: 70px 6vw;
  position: relative;
}

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

.section-title p {
  color: var(--accent);
  letter-spacing: 3px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  margin: 0 0 12px;
}

.section-title h2 {
  font-size: clamp(32px, 4vw, 48px);
  margin: 0 0 16px;
  background: linear-gradient(135deg, var(--text), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title .subnote {
  color: var(--muted);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

/* About Grid */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.about-grid > div {
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px;
  transition: all 0.4s ease;
}

.about-grid > div:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.about-grid h3 {
  font-size: 22px;
  margin: 0 0 20px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.about-grid h3::before {
  content: '';
  width: 4px;
  height: 24px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  border-radius: 2px;
}

.info-list {
  list-style: none;
  color: var(--text-secondary);
  font-size: 15px;
}

.info-list li {
  margin-bottom: 12px;
  padding-left: 20px;
  position: relative;
}

.info-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.info-list strong {
  color: var(--text);
  font-weight: 600;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.chips span {
  background: linear-gradient(135deg, rgba(244,197,66,0.1), rgba(95,211,166,0.1));
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 20px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.chips span:hover {
  background: linear-gradient(135deg, rgba(244,197,66,0.2), rgba(95,211,166,0.2));
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Service Cards */
.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.card {
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px;
  min-height: 200px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

.card:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card h4 {
  font-size: 20px;
  margin: 0 0 16px;
  color: var(--text);
}

.card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

/* Strength Grid */
.strength-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.strength-item {
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s ease;
  position: relative;
}

.strength-item::after {
  content: '';
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(244,197,66,0.2), rgba(95,211,166,0.2));
  border-radius: 50%;
  opacity: 0;
  transition: all 0.3s ease;
}

.strength-item:hover::after {
  opacity: 1;
  transform: scale(1.2);
}

.strength-item:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.strength-item h5 {
  font-size: 18px;
  margin: 0 0 12px;
  color: var(--primary);
}

.strength-item p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* News */
.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.news-card {
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.3s ease;
}

.news-card:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-card .date {
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.news-card h4 {
  font-size: 18px;
  margin: 0;
  color: var(--text);
  line-height: 1.5;
}

.news-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Contact */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
}

.contact-item {
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
}

.contact-item:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.contact-item h4 {
  font-size: 18px;
  margin: 0 0 16px;
  color: var(--primary);
  font-weight: 600;
}

.contact-item p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 6vw;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  background: rgba(10,14,26,0.8);
  backdrop-filter: blur(20px);
}

.footer .logo {
  font-size: 18px;
  margin-bottom: 12px;
}

.footer-left p {
  color: var(--muted);
  font-size: 14px;
  max-width: 400px;
  margin: 0;
}

.footer-right {
  text-align: right;
}

.footer-right .copyright {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-right .icp-beian {
  margin: 0;
  font-size: 12px;
}

.footer-right .icp-beian a {
  color: var(--muted);
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

.footer-right .icp-beian a:hover {
  color: var(--text);
  border-bottom-color: var(--muted);
}

/* Responsive */
@media (max-width: 960px) {
  .section {
    padding: 60px 5vw;
  }

  .section-title {
    margin-bottom: 40px;
  }
}

@media (max-width: 720px) {
  nav.nav {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 20px;
  }

  .nav-links {
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
  }

  .nav-links a {
    font-size: 13px;
    padding: 8px 14px;
  }

  .hero {
    min-height: 70vh;
    padding-bottom: 60px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .section {
    padding: 50px 5vw;
  }

  .about-grid,
  .service-cards,
  .strength-grid,
  .news-list,
  .contact-info {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }

  .footer-right {
    text-align: center;
  }

  .footer-left {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 24px 5vw 50px;
  }

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