:root {
  --bg: #eef5f6;
  --panel: #ffffff;
  --line: #c9dde0;
  --text: #12263a;
  --muted: #51657a;
  --logo-blue: #3d838e;
  --logo-blue-strong: #2f6b74;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% -20%, #dceff1 0, #eef5f6 45%, #f5f9f9 100%);
}

.home-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 18px 38px;
  display: grid;
  gap: 14px;
}

.hero {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  text-align: left;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  align-items: center;
  gap: 20px;
}

.hero-main {
  min-width: 0;
}

.logo-badge {
  font-family: "Trebuchet MS", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(36px, 7vw, 66px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--logo-blue);
  margin-bottom: 10px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 34px);
}

.hero-sub {
  margin: 10px 0 18px;
  color: var(--muted);
  font-size: 15px;
}

.start-btn {
  display: inline-block;
  background: var(--logo-blue);
  border: 1px solid var(--logo-blue);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 16px;
}

.start-btn:hover {
  background: var(--logo-blue-strong);
  border-color: var(--logo-blue-strong);
}

.emblem-card {
  margin: 0;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.emblem-card img {
  width: min(100%, 216px);
  height: auto;
  display: block;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}

.panel h2 {
  margin: 0 0 10px;
}

.panel p {
  margin: 10px 0;
  line-height: 1.7;
}

.panel a {
  color: var(--logo-blue);
  text-decoration: none;
}

.panel a:hover {
  text-decoration: underline;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.two-col ul {
  margin: 8px 0 0;
  padding-left: 20px;
  line-height: 1.7;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding: 18px;
  }

  .emblem-card img {
    width: min(100%, 180px);
  }
}