:root {
  --primary: #165dff;
  --primary-600: #0f4ad1;
  --primary-700: #0a369d;
  --text: #333333;
  --text-soft: #5f6773;
  --text-dark: #1a2230;
  --line: #e7ebf3;
  --bg: #ffffff;
  --bg-soft: #f5f8ff;
  --bg-dark: #0b1a36;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow: 0 14px 40px rgba(22, 93, 255, 0.12);
  --shadow-soft: 0 12px 34px rgba(17, 41, 87, 0.1);
  --container: 1160px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  overflow-y: scroll;
}

html,
body {
  min-height: 100%;
}

body {
  font-family: Inter, "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 15px;
  letter-spacing: 0.01em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

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

.container {
  width: min(var(--container), 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--primary);
}

.logo img {
  display: block;
  width: auto;
  max-height: 52px;
}

.site-nav {
  display: flex;
  gap: 30px;
  align-items: center;
}

.site-nav a {
  position: relative;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: color 0.25s;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: width 0.25s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--text-dark);
  font-size: 1rem;
  cursor: pointer;
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 20%, rgba(80, 132, 255, 0.46), transparent 42%),
    radial-gradient(circle at 14% 86%, rgba(13, 53, 141, 0.55), transparent 36%),
    linear-gradient(140deg, #0b1a36 0%, #0f2e67 58%, #165dff 130%);
  color: #fff;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(10, 20, 40, 0.22), rgba(10, 20, 40, 0.22));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: none;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: stretch;
  gap: 28px;
}

.hero-copy {
  padding: 28px 0;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.85rem);
  line-height: 1.18;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
}

.hero-panel {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.05));
  border-radius: 20px;
  backdrop-filter: blur(8px);
  padding: 26px;
  display: grid;
  gap: 15px;
  box-shadow: 0 16px 40px rgba(5, 20, 48, 0.25);
}

.hero-panel h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.hero-panel ul {
  list-style: none;
  display: grid;
  gap: 10px;
}

.hero-panel li {
  padding-left: 16px;
  position: relative;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.95rem;
}

.hero-panel li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  position: absolute;
  left: 0;
  top: 11px;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 146px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
}

.btn-primary {
  background: #fff;
  color: #0d2e66;
  box-shadow: 0 12px 26px rgba(10, 25, 54, 0.32);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(10, 25, 54, 0.35);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.section {
  padding: 78px 0;
}

.section-alt {
  background: var(--bg-soft);
}

.section-title {
  font-size: clamp(1.55rem, 2.8vw, 2.2rem);
  margin-bottom: 16px;
  color: #1d2838;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

.section-desc {
  color: var(--text-soft);
  max-width: 690px;
  margin-bottom: 32px;
  font-size: 1rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.split-panel {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 22px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: #32415a;
  font-size: 0.86rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.timeline-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: #fff;
}

.timeline-item strong {
  color: var(--primary-700);
  font-size: 0.9rem;
}

.timeline-item p {
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 0.88rem;
  line-height: 1.65;
}

.grid {
  display: grid;
  gap: 22px;
}

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

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

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: 0 6px 20px rgba(22, 47, 96, 0.04);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(22, 47, 96, 0.12);
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: #1f2c3f;
  line-height: 1.4;
}

.card p {
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.8;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 2px;
}

.kpi-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}

.kpi-item strong {
  display: block;
  color: var(--primary);
  font-size: 1.42rem;
  line-height: 1.2;
}

.kpi-item span {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.page-hero {
  padding: 84px 0 54px;
  background:
    radial-gradient(circle at 85% 12%, rgba(22, 93, 255, 0.16), transparent 34%),
    linear-gradient(180deg, #f6f9ff 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}

.compact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.compact-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  background: #fff;
}

.compact-item h4 {
  font-size: 0.98rem;
  color: #1f2c3f;
  margin-bottom: 6px;
}

.compact-item p {
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 2.9rem);
  color: #1a2a44;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.page-hero p {
  color: var(--text-soft);
  max-width: 700px;
  font-size: 1rem;
}

.list {
  display: grid;
  gap: 13px;
  margin-top: 12px;
  list-style: none;
  padding-left: 0;
}

.list li {
  position: relative;
  padding-left: 16px;
  color: var(--text-soft);
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.contact-form {
  display: grid;
  gap: 15px;
}

.contact-form label {
  display: block;
  font-size: 0.9rem;
  color: #415069;
  margin-bottom: 6px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 12px;
  font: inherit;
  color: var(--text);
}

.contact-form textarea {
  min-height: 130px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.14);
}

.qrcode-wrap {
  margin-top: 16px;
  display: inline-flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.qrcode-image {
  width: 148px;
  height: 148px;
  border-radius: 10px;
  border: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(15, 45, 100, 0.12);
  background: #fff;
}

.qrcode-text {
  font-size: 0.85rem;
  color: var(--text-soft);
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(140deg, #0b1a36, #10295a);
  color: rgba(255, 255, 255, 0.84);
  padding: 26px 0;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  justify-content: space-between;
  align-items: center;
}

.footer-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
}

.footer-meta a {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@media (max-width: 980px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kpi-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .compact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    right: 4vw;
    top: var(--header-h);
    width: min(270px, 92vw);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: flex-start;
    padding: 14px;
    gap: 14px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: 0.2s;
  }

  .site-nav.open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
  }

  .section {
    padding: 70px 0;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .kpi-row {
    grid-template-columns: 1fr;
  }

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

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

  .hero {
    min-height: calc(86vh - var(--header-h));
  }

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

  .hero-copy {
    padding: 0;
  }

  .hero-panel {
    padding: 20px;
  }

  .footer-wrap {
    align-items: flex-start;
    flex-direction: column;
  }
}