/* 北京中能融海科技有限公司门户站样式 */
:root {
  --color-primary: #1552f0;
  --color-primary-light: #19d3c5;
  --color-dark: #0b1f44;
  --color-text: #1a2b4b;
  --color-muted: #5a6b85;
  --color-background: #f5f7fb;
  --color-card: #ffffff;
  --max-width: 1200px;
  --shadow-soft: 0 20px 40px rgba(17, 46, 99, 0.12);
  --radius-lg: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

h1,
h2,
h3 {
  color: var(--color-dark);
  margin: 0 0 24px;
  font-weight: 700;
}

p {
  margin: 0 0 16px;
  color: var(--color-muted);
}

button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(120deg, var(--color-primary), #1d7cf3);
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(21, 82, 240, 0.2);
}

.btn-outline {
  border: 1px solid rgba(21, 82, 240, 0.38);
  color: var(--color-primary);
  background: rgba(21, 82, 240, 0.08);
}

.btn-outline:hover {
  background: rgba(21, 82, 240, 0.16);
  transform: translateY(-2px);
}

.container {
  width: min(90vw, var(--max-width));
  margin: 0 auto;
}

/* 顶部导航 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  padding: 16px 0;
  box-shadow: 0 12px 28px rgba(15, 56, 115, 0.08);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 18px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  box-shadow: 0 12px 24px rgba(25, 211, 197, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--color-muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

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

/* Hero 区 */
.hero {
  position: relative;
  padding: 132px 0 104px;
  overflow: hidden;
  background: linear-gradient(140deg, #f5f9ff 0%, #e8f0ff 48%, #f5fffd 100%);
  color: var(--color-dark);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.65) 0%, rgba(255, 255, 255, 0) 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
  align-items: center;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.hero-title {
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--color-muted);
  margin-bottom: 32px;
}

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

.hero-visual {
  position: relative;
  padding: 32px;
}

.hero-layers {
  position: relative;
  display: grid;
  gap: 24px;
}

.hero-card {
  border-radius: var(--radius-lg);
  padding: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 25px 45px rgba(25, 68, 146, 0.12);
  border: 1px solid rgba(21, 82, 240, 0.12);
}

.hero-card h3 {
  color: var(--color-dark);
  margin-bottom: 12px;
}

.hero-card p {
  color: var(--color-muted);
}

.data-pill {
  position: absolute;
  bottom: -18px;
  right: 8%;
  background: #fff;
  color: var(--color-dark);
  padding: 16px 24px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: rotate(-3deg);
  box-shadow: 0 18px 40px rgba(13, 55, 123, 0.16);
  border: 1px solid rgba(21, 82, 240, 0.12);
}

.data-pill span:first-child {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-primary);
}

.data-pill strong {
  font-size: 22px;
  font-weight: 700;
}

/* 通用版块 */
section {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 40px);
}

.section-header p {
  max-width: 700px;
  margin: 0 auto;
}

.grid-3 {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 18px 42px rgba(26, 54, 99, 0.08);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(25, 211, 197, 0.1), rgba(21, 82, 240, 0.1));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(26, 54, 99, 0.18);
}

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

.icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(21, 82, 240, 0.12);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(21, 82, 240, 0.1);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
}

.highlight {
  color: var(--color-primary);
  font-weight: 600;
}

.split {
  display: grid;
  gap: 48px;
  align-items: center;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat-block {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.stat-card {
  background: linear-gradient(135deg, rgba(21, 82, 240, 0.12), rgba(25, 211, 197, 0.15));
  padding: 24px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-card strong {
  font-size: 26px;
  color: var(--color-dark);
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  padding: 20px;
  border-left: 4px solid rgba(21, 82, 240, 0.25);
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 28px rgba(26, 54, 99, 0.05);
}

.timeline-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--color-dark);
}

.tech-list {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tech-list li {
  list-style: none;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: rgba(21, 82, 240, 0.08);
  color: var(--color-text);
  font-weight: 600;
  box-shadow: 0 12px 24px rgba(26, 54, 99, 0.08);
}

.service-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.service-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 18px 42px rgba(26, 54, 99, 0.08);
  border: 1px solid rgba(21, 82, 240, 0.1);
}

.service-card h3 {
  margin-bottom: 16px;
}

.service-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--color-muted);
  line-height: 1.7;
}

.footer {
  background: linear-gradient(180deg, #0f1f3f 0%, #081227 100%);
  color: rgba(255, 255, 255, 0.86);
  padding: 56px 0 28px;
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer .container {
  display: grid;
  gap: 28px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
}

.footer-top h3 {
  color: #fff;
  margin-bottom: 12px;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.74);
}

.icp-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 22px;
  flex-wrap: wrap;
  text-align: center;
}

.icp-strip .divider {
  opacity: 0.4;
}

.icp-strip a {
  color: rgba(255, 255, 255, 0.75);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.icp-strip a:hover {
  color: #fff;
}

.police-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.police-badge svg {
  width: 18px;
  height: 18px;
  fill: rgba(255, 255, 255, 0.65);
}

/* 动画 */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  animation: fadeUp 0.8s ease forwards;
}

.fade-up.delay-1 {
  animation-delay: 0.15s;
}

.fade-up.delay-2 {
  animation-delay: 0.3s;
}

.fade-up.delay-3 {
  animation-delay: 0.45s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-content,
  .split,
  .grid-3,
  .grid-2,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 100px 0 80px;
  }

  .data-pill {
    position: static;
    transform: none;
    align-self: flex-start;
  }

  .navbar .container {
    flex-direction: column;
    gap: 16px;
  }

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

  section {
    padding: 80px 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(92vw, 540px);
  }

  .hero {
    padding: 80px 0 60px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .stat-block {
    grid-template-columns: 1fr;
  }

  .tech-list {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: 24px;
  }

  section {
    padding: 64px 0;
  }
}