/* yuesong-ielts.cn — 雅思考试资讯网 静态站点样式 */
:root {
  --blue-900: #042C53;
  --blue-800: #0C447C;
  --blue-600: #185FA5;
  --blue-500: #2f7ed8;
  --blue-50:  #e9f1fb;
  --ink:      #1f2733;
  --ink-soft: #55606e;
  --line:     #e3e8ef;
  --page:     #f4f7fb;
  --card:     #ffffff;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--page);
  line-height: 1.75;
  font-size: 16px;
}

a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* ---------- Header / nav ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 7px;
  background: var(--blue-800); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 18px;
}
.brand .name { font-size: 18px; font-weight: 600; color: var(--ink); }
.nav { display: flex; flex-wrap: wrap; gap: 4px 6px; }
.nav a {
  color: var(--ink-soft);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 15px;
}
.nav a:hover { background: var(--blue-50); color: var(--blue-800); text-decoration: none; }
.nav a.active { color: var(--blue-800); font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #fff 0%, var(--page) 100%);
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: 48px 0 40px;
}
.hero h1 { margin: 0 0 12px; font-size: 30px; color: var(--blue-900); letter-spacing: .5px; }
.hero p { margin: 0 auto; max-width: 640px; color: var(--ink-soft); font-size: 16px; }

/* ---------- Page content ---------- */
main { padding: 36px 0 8px; }
.page-title { font-size: 24px; color: var(--blue-900); margin: 0 0 6px; }
.page-sub { color: var(--ink-soft); margin: 0 0 28px; }

h2 { font-size: 20px; color: var(--blue-800); margin: 32px 0 12px; }
h3 { font-size: 17px; color: var(--ink); margin: 22px 0 8px; }
p  { margin: 0 0 14px; }
ul, ol { margin: 0 0 16px; padding-left: 22px; }
li { margin: 4px 0; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 8px 0 8px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
  display: block;
}
.card:hover { border-color: var(--blue-500); text-decoration: none; }
.card h3 { margin: 0 0 6px; color: var(--blue-800); }
.card p { margin: 0; color: var(--ink-soft); font-size: 14px; }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; margin: 8px 0 20px; font-size: 15px; background: #fff; }
th, td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
th { background: var(--blue-50); color: var(--blue-800); font-weight: 600; }

/* ---------- News list ---------- */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.news-list .date { color: #9aa4b2; font-size: 14px; white-space: nowrap; }

article.post { border-bottom: 1px solid var(--line); padding-bottom: 8px; margin-bottom: 8px; }
article.post .meta { color: #9aa4b2; font-size: 13px; margin: -2px 0 10px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--blue-900);
  color: #cdddf0;
  text-align: center;
  padding: 26px 0 30px;
  margin-top: 40px;
  font-size: 13px;
  line-height: 2;
}
.site-footer a { color: #cdddf0; }
.site-footer a:hover { color: #fff; }
.site-footer .beian {
  display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: center; align-items: center;
  margin: 4px 0;
}
.site-footer .disclaimer { color: #8fb0d4; font-size: 12px; max-width: 640px; margin: 10px auto 0; }
.beian-police { display: inline-flex; align-items: center; gap: 5px; }
.beian-police img { height: 18px; width: auto; }

@media (max-width: 600px) {
  .hero h1 { font-size: 24px; }
  .site-header .container { justify-content: center; }
}