:root {
  --primary: #1677d6;
  --primary-dark: #0958a7;
  --primary-light: #4aa8ff;
  --accent-green: #52c46a;
  --accent-amber: #f3c969;
  --bg: #f8f9fa;
  --text: #1f2937;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  line-height: 1.8;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  max-width: 100%;
  overflow-x: hidden;
}
.icon { width: 1em; height: 1em; vertical-align: -0.125em; fill: currentColor; display: inline-block; }

.hero {
  position: relative;
  width: 100%;
  min-height: 580px;
  background: url('bg_20260812_02.png') center bottom / cover no-repeat;
  display: flex;
  flex-direction: column;
  color: #ffffff;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
}
.hero > * { position: relative; z-index: 1; }

.hero-nav {
  max-width: 1526px;
  margin: 0 auto;
  padding: 40px 20px 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-nav .logo-wrap {
  display: flex;
  align-items: center;
}
.hero-nav .logo {
  display: block;
  max-height: 80px;
  width: auto;
  height: auto;
}
.hero-nav .btn-home {
  background: #ffffff;
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: bold;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.3s;
  white-space: nowrap;
  flex-shrink: 0;
}
.hero-nav .btn-home:hover { opacity: 0.9; }

.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 20px 20px 60px 70px;
  text-align: left;
  width: 100%;
}
.hero-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
  letter-spacing: 1px;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}
.hero-title-img {
  max-width: 72%;
  width: 880px;
  height: auto;
  display: block;
  margin: 20px 0 0;
  filter: drop-shadow(0 6px 18px rgba(9, 88, 167, 0.22));
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 36px;
  margin-top: 28px;
  padding-left: 10px;
  align-self: flex-start;
}
.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  color: #ffffff;
  font-weight: 500;
  letter-spacing: 1px;
  text-shadow: 0 1px 3px rgba(9, 88, 167, 0.35);
  padding: 8px 22px 8px 20px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 24px;
  backdrop-filter: blur(6px);
}
.hero-meta-item:first-child::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-amber);
  box-shadow: 0 0 0 3px rgba(243, 201, 105, 0.25);
}
.hero-meta-item:last-child::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 3px rgba(82, 196, 106, 0.25);
}
.hero-subtitle {
  font-size: 18px;
  opacity: 0.95;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

.section {
  padding: 60px 20px;
  position: relative;
}
.section-gray {
  background:
    radial-gradient(circle at 12% 18%, rgba(74, 168, 255, 0.12) 0%, transparent 42%),
    radial-gradient(circle at 88% 82%, rgba(82, 196, 106, 0.10) 0%, transparent 45%),
    linear-gradient(180deg, #eff7fc 0%, #e6f4ea 100%);
}
.section-overview::before {
  content: '';
  position: absolute;
  top: -80px;
  left: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(74, 168, 255, 0.22) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.section-overview::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: 0px;
  width: 420px;
  height: 420px;
  background:
    repeating-linear-gradient(45deg,
      rgba(82, 196, 106, 0.12) 0,
      rgba(82, 196, 106, 0.12) 2px,
      transparent 2px,
      transparent 18px);
  border-radius: 50%;
  pointer-events: none;
}

.section-content {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(22, 119, 214, 0.08) 0%, transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #f2f9ff 100%);
}
.section-content::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 24px;
  width: 6px;
  height: 220px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--accent-green) 100%);
  transform: translateY(-50%);
  border-radius: 3px;
  opacity: 0.75;
  pointer-events: none;
}
.section-content::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 24px;
  width: 6px;
  height: 220px;
  background: linear-gradient(0deg, var(--primary) 0%, var(--accent-green) 100%);
  transform: translateY(-50%);
  border-radius: 3px;
  opacity: 0.75;
  pointer-events: none;
}

.section-links {
  background:
    radial-gradient(circle at 85% 15%, rgba(74, 168, 255, 0.11) 0%, transparent 42%),
    radial-gradient(circle at 15% 85%, rgba(243, 201, 105, 0.10) 0%, transparent 45%),
    linear-gradient(0deg, #eff7fc 0%, #faf5e8 100%);
}
.section-links::before {
  content: '';
  position: absolute;
  bottom: 24px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(22, 119, 214, 0.35) 20%,
    rgba(82, 196, 106, 0.35) 50%,
    rgba(243, 201, 105, 0.35) 80%,
    transparent 100%);
  pointer-events: none;
}
.section-links::after {
  content: '';
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--primary) 25%,
    var(--accent-green) 50%,
    var(--accent-amber) 75%,
    transparent 100%);
  border-radius: 2px;
  opacity: 0.7;
  pointer-events: none;
}

.section-inner { max-width: 1526px; margin: 0 auto; position: relative; z-index: 1; width: 100%; }
.section-margin { margin-top: -7rem; }
@media (max-width: 1024px) {
  .hero {
    min-height: auto;
    background: url('bg_20260812_02.png') right bottom / cover no-repeat;
  }
  .section-margin { margin-top: -4rem; }
}
@media (max-width: 640px) {
  .section-margin { margin-top: -1.5rem; }
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 auto 16px;
  text-align: center;
  display: flex;
  justify-content: center;
  gap: 10px;
  width: 520px;
  height: 110px;
  background: url('bg_20260812_03.png') center / 23rem no-repeat;
  padding: 0 40px 8px;
  position: relative;
  letter-spacing: 4px;
  text-shadow: 0 1px 2px rgba(9, 88, 167, 0.12);
  line-height: 86px;
}
.section-lead {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin: 0 auto 36px;
  max-width: 1100px;
  text-align: center;
  font-size: 18px;
  color: #4a5568;
  line-height: 1.6;
}
.lead-line {
  flex: 1;
  min-width: 80px;
  height: 2px;
  position: relative;
}
.lead-line::before {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
}
.lead-line.left::before {
  background: linear-gradient(90deg, transparent 0%, var(--primary) 100%);
}
.lead-line.right::before {
  background: linear-gradient(90deg, var(--accent-green) 0%, transparent 100%);
}
.lead-line::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transform: translateY(-50%);
}
.lead-line.left::after {
  right: -4px;
  background: var(--primary);
}
.lead-line.right::after {
  left: -4px;
  background: var(--accent-green);
}
.lead-body {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  padding: 14px 34px;
  background: linear-gradient(135deg, rgba(74, 168, 255, 0.08) 0%, rgba(82, 196, 106, 0.08) 100%);
  border-radius: 40px;
  border: 1px solid rgba(22, 119, 214, 0.15);
  box-shadow: 0 2px 8px rgba(22, 119, 214, 0.04);
}
.lead-text {
  font-size: 18px;
  color: #4a5568;
}
.lead-sep {
  font-size: 18px;
  color: #4a5568;
  margin-right: 2px;
}
.lead-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 4px 16px 4px 14px;
  margin: 0 4px;
  border-radius: 20px;
  font-size: 17px;
  font-weight: 600;
  color: #ffffff;
}
.lead-badge em {
  font-style: normal;
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  font-family: "DIN Alternate", "Microsoft YaHei", sans-serif;
  letter-spacing: 1px;
}
.lead-badge.blue {
  background: linear-gradient(135deg, #1677d6 0%, #4aa8ff 100%);
  box-shadow: 0 3px 10px rgba(22, 119, 214, 0.25);
}
.lead-badge.green {
  background: linear-gradient(135deg, #38b25a 0%, #7dd891 100%);
  box-shadow: 0 3px 10px rgba(82, 196, 106, 0.25);
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}
.two-col > * { min-width: 0; }

.card {
  background: #ffffff;
  border-radius: 10px;
  padding: 40px;
  box-shadow: 0 2px 10px rgba(22, 119, 214, 0.06);
  border: 1px solid rgba(74, 168, 255, 0.15);
  height: 100%;
  position: relative;
}
.card-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 auto 22px;
  display: flex;
  justify-content: center;
  gap: 10px;
  width: 420px;
  height: 96px;
  background: url('bg_20260812_03.png') center / 23rem no-repeat;
  padding: 0 36px 6px;
  letter-spacing: 4px;
  text-shadow: 0 1px 2px rgba(9, 88, 167, 0.12);
  line-height: 70px;
}
.lead-text {
  font-size: 20px;
  line-height: 1.9;
  color: var(--text);
  text-align: justify;
}
.lead-text p { margin-bottom: 14px; }
.lead-text p:last-child { margin-bottom: 0; text-indent: 2em;}

.content-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
}
.content-card {
  position: relative;
  padding: 56px 32px 32px;
  border-radius: 8px;
}
.content-card-tl {
  border-top-right-radius: 56px;
  border-bottom-left-radius: 56px;
}
.content-card-tr {
  border-top-left-radius: 56px;
  border-bottom-right-radius: 56px;
}
.content-card-bl {
  border-top-left-radius: 56px;
  border-bottom-right-radius: 56px;
}
.content-card-br {
  border-top-right-radius: 56px;
  border-bottom-left-radius: 56px;
}
.content-card-title {
  display: inline-block;
  position: absolute;
  top: -14px;
  left: 24px;
  padding: 10px 24px 10px 20px;
  margin-bottom: 0;
  margin-left: 0;
  background: var(--primary);
  color: #ffffff;
  transform: skewX(-15deg);
  border-radius: 4px;
}
.content-card-title > span {
  display: inline-block;
  transform: skewX(15deg);
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
}
.content-card-desc {
  font-size: 20px;
  line-height: 1.9;
  color: var(--text);
  text-align: justify;
  text-indent: 2em;
}
@media (max-width: 768px) {
  .content-cards { grid-template-columns: minmax(0, 1fr); }
}

.highlight-box {
  background: linear-gradient(90deg, #e8f4fd 0%, #f1f8e9 100%);
  border-left: 4px solid var(--accent-green);
  padding: 18px;
  border-radius: 0 8px 8px 0;
  margin: 14px 0;
  color: var(--text);
  font-size: 15px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 26px 34px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.3s, border-color 0.3s, transform 0.2s;
}
.link-card:hover {
  box-shadow: 0 6px 16px rgba(22, 119, 214, 0.10);
  border-color: rgba(74, 168, 255, 0.45);
}
.link-icon-wrap {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #e1f0fe 0%, #e4f5e9 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}
.link-text h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
  line-height: 1.4;
}
.link-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.link-arrow {
  margin-left: auto;
  color: var(--primary-light);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    background: url('bg_20260812_02.png') right bottom / cover no-repeat;
  }
  .hero-title { font-size: 26px; }
  .hero-title-img { width: 94%; max-width: 94%; margin: 10px 0 0; }
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-top: 18px;
    padding-left: 0;
    width: 100%;
  }
  .hero-meta-item { font-size: 14px; padding: 6px 16px; max-width: 100%; box-sizing: border-box; }
  .hero-nav { padding-top: 20px 16px 0; gap: 10px; flex-wrap: wrap; }
  .hero-nav .logo { max-height: 56px; max-width: 180px; }
  .hero-nav .btn-home { padding: 6px 14px; font-size: 13px; }
  .hero-content { padding: 24px 16px 40px; }
  .section { padding: 40px 16px; }
  .card {
    padding: 64px 20px 24px;
    border-radius: 10px;
  }
  .card-title {
    width: 92%;
    height: 72px;
    font-size: 18px;
    letter-spacing: 1px;
    padding: 0 18px 4px;
    line-height: 56px;
    background: url('bg_20260812_03.png') center / 17rem no-repeat;
  }
  .section-title {
    font-size: 20px;
    letter-spacing: 2px;
    width: 94%;
    height: 76px;
    padding: 0 16px 4px;
    margin-bottom: 20px;
    line-height: 60px;
    background: url('bg_20260812_03.png') center / 17rem no-repeat;
  }
  .section-lead {
    flex-direction: column;
    gap: 14px;
    padding: 0 8px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .lead-line { min-width: 100px; width: 100px; }
  .lead-body {
    padding: 14px 16px;
    gap: 4px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
  }
  .lead-text, .lead-sep { font-size: 15px; }
  .lead-badge { font-size: 14px; padding: 3px 10px 3px 8px; margin: 2px; }
  .lead-badge em { font-size: 20px; }
  .content-cards { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .content-card-title {
    padding: 8px 20px 8px 16px;
    font-size: 18px;
    top: -12px;
    left: 16px;
  }
  .content-card-title > span { font-size: 18px; }
  .content-card-desc { font-size: 16px; line-height: 1.8; }
  .card { padding: 22px 18px 22px; }
  .content-card {padding: 60px 18px 22px;}
  .highlight-box { padding: 14px; font-size: 14px; }
  .lead-text p, .content-card-desc { font-size: 16px; line-height: 1.8; }
  .link-card {
    padding: 18px 16px;
    gap: 12px;
    flex-wrap: wrap;
    max-width: 100%;
    box-sizing: border-box;
    justify-content: center;
  }
  .link-icon-wrap { width: 40px; height: 40px; flex-shrink: 0; }
  .link-text h3 { font-size: 16px; line-height: 1.5; max-width: 100%; word-break: break-word; }
  .link-text p { font-size: 13px; }
  .link-arrow { flex-basis: 100%; margin-left: auto; text-align: right; }
}