:root {
  --bg: #f2f7ff;
  --surface: #ffffff;
  --surface-soft: #f7fbff;
  --text: #13283d;
  --muted: #4f6479;
  --primary: #1365ef;
  --primary-strong: #0c4fbe;
  --primary-soft: #eaf2ff;
  --accent: #14b8a6;
  --line: #d7e4f5;
  --radius: 18px;
  --shadow: 0 14px 38px rgba(19, 58, 107, 0.12);
  --inner-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1200px 640px at 10% -10%, #d8e8ff 0%, transparent 55%),
    radial-gradient(920px 560px at 94% 2%, #d6f8f1 0%, transparent 50%),
    linear-gradient(180deg, #edf4ff 0%, var(--bg) 38%);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 22px;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(243, 249, 255, 0.86);
  border-bottom: 1px solid rgba(191, 213, 242, 0.5);
  z-index: 20;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.3px;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 6px 11px;
  transition: all 0.2s ease;
}

.nav a:hover {
  color: var(--primary);
  border-color: #c8dbfb;
  background: #f3f8ff;
}

.hero {
  margin: 30px 0 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(243, 249, 255, 0.92));
  border: 1px solid #d3e2f6;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 20px;
  align-items: center;
  overflow: hidden;
  position: relative;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  right: -160px;
  top: -180px;
  background: radial-gradient(circle, rgba(19, 101, 239, 0.16), rgba(19, 101, 239, 0));
  pointer-events: none;
  z-index: -1;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.2;
  letter-spacing: 0.2px;
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.actions {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  box-shadow: 0 10px 24px rgba(19, 101, 239, 0.32);
}

.btn-secondary {
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid #c8dcff;
}

.hero-copy .meta {
  margin-top: 16px;
}

.hero-visual {
  background:
    linear-gradient(165deg, #0d4ca8 0%, #1563e6 45%, #1a82ea 100%);
  border-radius: 16px;
  min-height: 240px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 18px 30px rgba(18, 74, 154, 0.28);
  position: relative;
  overflow: hidden;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-kpi {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: flex;
  gap: 8px;
}

.hero-kpi span {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 12px;
  padding: 5px 9px;
  border-radius: 999px;
  backdrop-filter: blur(2px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.card {
  background:
    linear-gradient(160deg, #fff 0%, var(--surface-soft) 100%);
  border: 1px solid #d9e7f8;
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--inner-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 999px;
  right: -45px;
  top: -45px;
  background: radial-gradient(circle, rgba(19, 101, 239, 0.13), rgba(19, 101, 239, 0));
  pointer-events: none;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(14, 60, 120, 0.12);
}

.card h2,
.card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.meta {
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
  background: #f2f7ff;
  border: 1px dashed #c9daf3;
  border-radius: 10px;
  padding: 10px 12px;
}

.legal {
  margin: 24px 0;
  background:
    linear-gradient(165deg, #fff 0%, #f8fbff 100%);
  border: 1px solid #d8e6f8;
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.legal::before {
  content: "";
  position: absolute;
  right: -62px;
  top: -58px;
  width: 250px;
  height: 250px;
  border-radius: 999px;
  background:
    radial-gradient(circle, rgba(20, 184, 166, 0.15), rgba(20, 184, 166, 0));
  pointer-events: none;
}

.legal::after {
  content: "";
  position: absolute;
  right: 24px;
  top: 20px;
  width: 88px;
  height: 64px;
  background-repeat: no-repeat;
  background-size: contain;
  opacity: 0.42;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 160 120'%3E%3Cpath fill='%231365ef' d='M15 96c24-6 35-31 49-47 15-16 37-25 81-25-7 42-33 79-76 87-22 4-40 1-54-15z'/%3E%3Ccircle cx='108' cy='31' r='9' fill='%2314b8a6'/%3E%3C/svg%3E");
}

.legal h1 {
  margin-top: 0;
  font-size: 34px;
  letter-spacing: 0.2px;
}

.legal h1::after {
  content: "";
  display: block;
  width: 140px;
  height: 10px;
  margin-top: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(19, 101, 239, 0.4), rgba(20, 184, 166, 0.2));
}

.legal h2 {
  margin-top: 28px;
  margin-bottom: 8px;
  font-size: 20px;
  color: #103a77;
}

.legal h2::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
}

.legal ul {
  margin: 8px 0 0 20px;
}

.site-footer {
  margin-top: 22px;
  border-top: 1px solid #d0e2f8;
  color: var(--muted);
  font-size: 14px;
}

.footer-inner {
  padding: 20px 0 34px;
  display: grid;
  gap: 4px;
}

code {
  background: #edf4ff;
  border-radius: 6px;
  padding: 2px 6px;
  border: 1px solid #d4e3f8;
}

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .hero-visual {
    min-height: 210px;
  }

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

  .hero,
  .card,
  .legal {
    padding: 18px;
  }

  .header-inner {
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
  }
}