:root {
  --primary: #21BFA4;
  --primary-dark: #128C77;
  --primary-soft: #E5F7F3;
  --bg: #F5F8F7;
  --card: #FFFFFF;
  --text: #1F3532;
  --muted: #68807B;
  --line: #E3ECE9;
  --radius: 6px;
  --maxw: 1100px;
  --shadow-sm: 0 1px 3px rgba(16,60,52,.06);
  --shadow-md: 0 10px 28px rgba(16,60,52,.12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary-dark); text-decoration: none; }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }

/* ===== 顶部导航 ===== */
.header {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.header-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.logo { font-size: 21px; font-weight: 800; color: var(--primary-dark); letter-spacing: .5px; display: flex; align-items: center; gap: 9px; }
.logo::before {
  content: ""; width: 12px; height: 12px; border-radius: 3px; flex: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 0 0 4px var(--primary-soft);
}
.logo small { font-size: 12px; color: var(--muted); font-weight: 400; margin-left: 2px; letter-spacing: 0; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: var(--text); font-weight: 500; font-size: 15px;
  padding: 6px 13px; border-radius: var(--radius); transition: .15s;
}
.nav a:hover { color: var(--primary-dark); background: var(--primary-soft); }
.searchbox { display: flex; }
.searchbox input {
  border: 1px solid var(--line); border-right: none; border-radius: var(--radius) 0 0 var(--radius);
  padding: 8px 13px; width: 190px; outline: none; font-size: 14px; background: #FAFCFB;
  transition: border-color .15s;
}
.searchbox input:focus { border-color: var(--primary); }
.searchbox button {
  border: 1px solid var(--primary); background: var(--primary); color: #fff;
  border-radius: 0 var(--radius) var(--radius) 0; padding: 8px 16px; cursor: pointer; font-size: 14px; font-weight: 500;
}
.searchbox button:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

/* ===== 布局 ===== */
.container { max-width: var(--maxw); margin: 28px auto; padding: 0 20px; }
.layout { display: grid; grid-template-columns: 1fr 300px; gap: 28px; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(118deg, #128C77 0%, #21BFA4 58%, #3BD4B4 100%);
  color: #fff; border-radius: var(--radius); padding: 52px 44px; margin-bottom: 26px;
  box-shadow: 0 14px 34px rgba(18,140,119,.28);
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
}
.hero::before { width: 340px; height: 340px; right: -90px; top: -140px; background: rgba(255,255,255,.10); }
.hero::after  { width: 200px; height: 200px; right: 130px; bottom: -110px; background: rgba(255,255,255,.08); }
.hero-inner { position: relative; z-index: 1; max-width: 640px; }
.hero-badge {
  display: inline-block; font-size: 13px; font-weight: 500; letter-spacing: 1px;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.35);
  padding: 4px 14px; border-radius: 999px; margin-bottom: 16px;
}
.hero h1 { margin: 0 0 12px; font-size: 34px; line-height: 1.3; letter-spacing: .5px; }
.hero-sub { margin: 0 0 18px; font-size: 16px; opacity: .93; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }
.hero-chips a {
  font-size: 13.5px; color: #fff; background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.32); padding: 5px 14px; border-radius: 999px; transition: .15s;
}
.hero-chips a:hover { background: rgba(255,255,255,.28); color: #fff; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-actions .btn { background: #fff; color: var(--primary-dark); font-weight: 600; padding: 10px 24px; box-shadow: 0 4px 14px rgba(0,0,0,.12); }
.hero-actions .btn:hover { background: #F0FBF8; }
.hero-actions .btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.6); box-shadow: none; }
.hero-actions .btn-outline:hover { background: rgba(255,255,255,.14); color: #fff; }
@media (max-width: 600px) { .hero { padding: 36px 24px; } .hero h1 { font-size: 26px; } }

/* ===== 区块标题 ===== */
.sec-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 18px; }
.sec-title { font-size: 21px; margin: 0; color: var(--text); font-weight: 700; display: flex; align-items: center; gap: 10px; }
.sec-title::before { content: ""; width: 4px; height: 20px; border-radius: 2px; background: var(--primary); }
.sec-more { font-size: 14px; color: var(--muted); font-weight: 400; }
.sec-more:hover { color: var(--primary-dark); }

/* ===== 栏目卡 ===== */
.cat-showcase { margin-bottom: 34px; }
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 860px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
.cat-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px; transition: .2s; display: block; box-shadow: var(--shadow-sm);
}
.cat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: rgba(33,191,164,.45); color: inherit; }
.cat-card h3 { margin: 0 0 6px; color: var(--text); font-size: 16.5px; font-weight: 700; display: flex; align-items: center; justify-content: space-between; }
.cat-card h3 .arr { color: var(--primary); font-weight: 400; opacity: 0; transform: translateX(-4px); transition: .2s; }
.cat-card:hover h3 .arr { opacity: 1; transform: translateX(0); }
.cat-card p { margin: 0 0 10px; color: var(--muted); font-size: 13px; line-height: 1.65; }
.cat-count { font-size: 12px; color: var(--primary-dark); background: var(--primary-soft); border-radius: 999px; padding: 2px 10px; display: inline-block; }

/* ===== 文章卡 ===== */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 0; transition: box-shadow .2s, transform .2s, border-color .2s;
  box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: rgba(33,191,164,.45); }
.card-cover { position: relative; display: block; }
.card .cover { width: 100%; height: 185px; object-fit: cover; background: #eef5f3; }
.card-badge {
  position: absolute; left: 10px; top: 10px; font-size: 12px; font-weight: 500;
  background: rgba(18,140,119,.92); color: #fff; padding: 3px 10px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.card .body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.card h3 { margin: 0 0 8px; font-size: 16.5px; line-height: 1.45; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--primary-dark); }
.card .meta { color: var(--muted); font-size: 12.5px; margin-bottom: 8px; }
.card .excerpt {
  color: var(--muted); font-size: 13.5px; line-height: 1.7; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.card .foot { margin-top: 12px; padding-top: 10px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--primary-dark); font-weight: 500; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 26px; }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }

/* ===== 侧栏 ===== */
.side {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px; margin-bottom: 20px; box-shadow: var(--shadow-sm);
}
.side h4 { margin: 0 0 14px; font-size: 15px; font-weight: 700; color: var(--text); border-left: 3px solid var(--primary); padding-left: 10px; }
.tag-list a {
  display: inline-block; background: #F0F6F4; color: var(--muted);
  padding: 5px 12px; border-radius: var(--radius); margin: 0 6px 8px 0; font-size: 13px; transition: .15s;
}
.tag-list a:hover { background: var(--primary); color: #fff; }
.side-tip {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius); color: #fff; padding: 18px 16px; font-size: 13.5px; line-height: 1.7;
  margin-bottom: 20px; box-shadow: var(--shadow-sm);
}
.side-tip strong { display: block; font-size: 15px; margin-bottom: 6px; }
.side-tip p { margin: 0; opacity: .92; }

/* ===== 文章页 ===== */
.article { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px 34px; box-shadow: var(--shadow-sm); }
.article h1 { font-size: 27px; margin: 0 0 12px; line-height: 1.4; }
.article .meta { color: var(--muted); font-size: 13px; margin-bottom: 22px; border-bottom: 1px dashed var(--line); padding-bottom: 14px; }
.article .content { font-size: 16.5px; }
.article .content h2 { font-size: 21px; margin: 30px 0 12px; color: var(--text); padding-left: 11px; border-left: 4px solid var(--primary); }
.article .content h3 { font-size: 18px; margin: 24px 0 10px; }
.article .content p { margin: 0 0 16px; }
.article .content img { border-radius: var(--radius); margin: 18px 0; }
.article .content blockquote {
  border-left: 4px solid var(--primary); background: var(--primary-soft); margin: 18px 0; padding: 12px 18px; color: var(--muted); border-radius: 0 var(--radius) var(--radius) 0;
}
.disclaimer {
  background: #FFF8E9; border: 1px solid #F3E2B8; color: #8A6D1A;
  border-radius: var(--radius); padding: 12px 16px; font-size: 14px; margin: 24px 0;
}
.rel-title { font-size: 17px; font-weight: 700; margin: 30px 0 14px; }
.rel-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 600px) { .rel-grid { grid-template-columns: 1fr; } }
.rel-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; font-size: 14.5px; box-shadow: var(--shadow-sm); transition: .15s; color: var(--text); display: block; }
.rel-card:hover { border-color: rgba(33,191,164,.45); box-shadow: var(--shadow-md); color: var(--primary-dark); transform: translateY(-2px); }

/* ===== 按钮 ===== */
.btn {
  display: inline-block; background: var(--primary); color: #fff; border: none;
  border-radius: var(--radius); padding: 10px 22px; cursor: pointer; font-size: 15px; font-weight: 500; transition: .15s;
}
.btn:hover { background: var(--primary-dark); color: #fff; }
.btn-ghost { background: var(--primary-soft); color: var(--primary-dark); }
.btn-ghost:hover { background: var(--primary); color: #fff; }

/* ===== 分页 ===== */
.pager { display: flex; gap: 8px; justify-content: center; margin: 6px 0 24px; flex-wrap: wrap; }
.pager a { padding: 7px 15px; border: 1px solid var(--line); border-radius: var(--radius); color: var(--text); background: var(--card); font-size: 14px; transition: .15s; }
.pager a.current, .pager a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.pager-dot { padding: 0 4px; color: var(--muted); align-self: center; }
.pager-jump { display: inline-flex; align-items: stretch; margin-left: 8px; }
.pager-jump input[type=number] {
  width: 76px; border: 1px solid var(--line); border-right: none; border-radius: var(--radius) 0 0 var(--radius);
  padding: 7px 10px; font-size: 14px; outline: none; background: var(--card); color: var(--text); text-align: center;
  appearance: textfield; -moz-appearance: textfield; transition: .15s;
}
.pager-jump input::-webkit-outer-spin-button, .pager-jump input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pager-jump input[type=number]:focus { border-color: var(--primary); background: #fff; }
.pager-jump input[type=number]::placeholder { color: var(--muted); }
.pager-jump button {
  border: 1px solid var(--primary); background: var(--primary); color: #fff; font-family: inherit;
  border-radius: 0 var(--radius) var(--radius) 0; padding: 7px 14px; font-size: 14px; cursor: pointer; transition: .15s;
}
.pager-jump button:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

/* ===== 搜索页 ===== */
.page-head { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; margin-bottom: 22px; box-shadow: var(--shadow-sm); }
.page-head h1 { margin: 0; font-size: 21px; }
.page-head p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }

/* ===== 后台 ===== */
.admin-wrap { max-width: 920px; margin: 30px auto; padding: 0 20px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-weight: 600; margin-bottom: 6px; }
.form-row input[type=text], .form-row textarea, .form-row select {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; font-size: 15px; font-family: inherit; outline: none;
}
.form-row input[type=text]:focus, .form-row textarea:focus { border-color: var(--primary); }
.form-row textarea { min-height: 320px; line-height: 1.6; }
table.admin-list { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
table.admin-list th, table.admin-list td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
table.admin-list th { background: var(--primary-soft); color: var(--primary-dark); }
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; }
.alert-ok { background: #E7F7F1; color: #128C77; border: 1px solid #BFE9DC; }
.alert-err { background: #FDECEC; color: #C0392B; border: 1px solid #F5C6C6; }

/* ===== 页脚 ===== */
.footer { background: #123B33; color: #A8C5BE; margin-top: 48px; padding: 38px 20px 30px; font-size: 13.5px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
@media (max-width: 720px) { .footer-inner { grid-template-columns: 1fr; gap: 22px; } }
.footer h5 { color: #fff; font-size: 15px; margin: 0 0 12px; }
.footer p { margin: 0 0 8px; line-height: 1.8; }
.footer a { color: #A8C5BE; }
.footer a:hover { color: #fff; }
.footer-brand { font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.footer-links { display: flex; flex-direction: column; gap: 7px; }
.footer-bottom { max-width: var(--maxw); margin: 26px auto 0; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); text-align: center; font-size: 12.5px; color: #7FA39A; }

/* ===== 移动端 H5 适配 ===== */
html, body { max-width: 100%; overflow-x: hidden; }
@media (max-width: 600px) {
  body { font-size: 15px; }
  .container { margin: 16px auto; padding: 0 14px; }
  .header-inner { padding: 10px 14px; gap: 10px; }
  .logo { font-size: 18px; }
  .logo small { display: none; }
  .nav { gap: 2px; width: 100%; order: 3; }
  .nav a { padding: 5px 10px; font-size: 14px; }
  .searchbox { flex: 1; }
  .searchbox input { width: 100%; min-width: 0; }
  .hero { padding: 30px 20px; }
  .hero h1 { font-size: 24px; }
  .hero-sub { font-size: 14.5px; }
  .hero-actions .btn { padding: 9px 18px; font-size: 14px; }
  .cat-grid { gap: 10px; }
  .cat-card { padding: 14px 12px; }
  .cat-card p { font-size: 12.5px; }
  .grid { gap: 14px; }
  .card .cover { height: 160px; }
  .card .body { padding: 13px 14px 15px; }
  .card h3 { font-size: 15.5px; }
  .sec-title { font-size: 18px; }
  .article { padding: 22px 18px; }
  .article h1 { font-size: 22px; }
  .article .content { font-size: 16px; }
  .article .content img { max-width: 100%; height: auto; }
  .side { padding: 16px 14px; }
  .footer { padding: 28px 16px 22px; }
  .footer-bottom { padding-top: 14px; }
}
/* 超小屏（<=380px）栏目单列 */
@media (max-width: 380px) {
  .cat-grid { grid-template-columns: 1fr; }
}