/* 第3套：居中杂志栅格，青绿三栏 */
:root {
  --teal: #0d7377;
  --teal-2: #14919b;
  --ink: #1e293b;
  --muted: #475569;
  --bg: #f8fafb;
  --card: #ffffff;
  --line: #d7e3e6;
}

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.8;
  font-size: 16px;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

.mast {
  background: #fff;
  border-bottom: 3px solid var(--teal);
}
.mast-inner {
  width: min(1200px, 94%);
  margin: 0 auto;
  padding: 18px 0 0;
  text-align: center;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--teal);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 1px;
  text-decoration: none;
}
.tagline {
  font-size: 12px;
  color: var(--muted);
  margin: 6px 0 14px;
  letter-spacing: 2px;
}
.mast nav {
  display: flex;
  justify-content: center;
  gap: 0;
  border-top: 1px solid var(--line);
}
.mast nav a {
  padding: 12px 28px;
  color: var(--ink);
  font-weight: 600;
}
.mast nav a.active {
  color: var(--teal);
  box-shadow: inset 0 -3px 0 var(--teal);
}

.hero {
  width: min(860px, 92%);
  margin: 40px auto 20px;
  text-align: center;
}
.hero h1 { font-size: 34px; line-height: 1.35; margin-bottom: 16px; }
.hero .lead { color: var(--muted); margin-bottom: 22px; }
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 700;
}
.btn-teal { background: var(--teal); color: #fff; }
.btn-teal:hover { background: var(--teal-2); text-decoration: none; }
.btn-outline {
  border: 1px solid var(--teal);
  color: var(--teal);
  margin-left: 8px;
}

.page { width: min(1200px, 94%); margin: 0 auto 48px; }

.trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 28px 0;
}
.trio article {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 20px 18px;
}
.trio h2 { font-size: 18px; color: var(--teal); margin-bottom: 10px; }

.band {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px 32px;
  margin: 22px 0;
}
.band h2 { font-size: 22px; margin-bottom: 12px; }
.band p { margin-bottom: 12px; }
.pull {
  border-left: 4px solid var(--teal-2);
  padding: 8px 16px;
  color: var(--muted);
  font-size: 18px;
  margin: 16px 0;
  background: #eef7f7;
}

table.cmp {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 14px 0;
}
table.cmp th, table.cmp td {
  border-bottom: 1px solid var(--line);
  padding: 10px 8px;
  text-align: left;
}
table.cmp th { color: var(--teal); }

.faq-item { padding: 14px 0; border-bottom: 1px dashed var(--line); }
.faq-item h3 { font-size: 17px; margin-bottom: 6px; }

.cta-center { text-align: center; padding: 10px 0 6px; }

footer {
  background: #0b3d40;
  color: #d5e8e9;
  text-align: center;
  padding: 28px 16px;
  font-size: 13px;
}
footer .safe { color: #b7e3b0; margin-bottom: 8px; }
footer a { color: #9be7ea; }

@media (max-width: 800px) {
  .trio { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
  .mast nav a { padding: 10px 12px; }
  .btn-outline { margin-left: 0; margin-top: 8px; }
}