/* ============================================================
   中文联盟产品站 · 基础样式
   移动端优先 · 简洁评测站风格
   ============================================================ */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --text: #1a1a1a;
  --text-muted: #666666;
  --border: #e5e7eb;
  --accent: #0f7a5f;          /* 主色：深青 */
  --accent-dark: #0b5f4a;
  --warn-bg: #fff8e6;         /* 披露条底色 */
  --warn-border: #f0d98c;
  --pro-bg: #eefaf4;
  --pro-border: #bfe6d4;
  --con-bg: #fef3f2;
  --con-border: #f5c6c2;
  --radius: 10px;
  --maxw: 1080px;
  --maxw-article: 760px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 0 16px; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
}
.site-logo { font-size: 20px; font-weight: 800; color: var(--text); }
.site-logo span { color: var(--accent); }
.site-nav { display: flex; gap: 4px; }
.site-nav a {
  color: var(--text); font-size: 15px; padding: 8px 10px; border-radius: 8px;
}
.site-nav a:hover { background: var(--bg-soft); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; }

/* ---------- 通用容器 ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
.container-narrow { max-width: var(--maxw-article); margin: 0 auto; padding: 0 16px; }
.section { padding: 32px 0; }
.section-title { font-size: 22px; font-weight: 800; margin-bottom: 16px; }

/* ---------- 首页 hero ---------- */
.hero {
  background: linear-gradient(180deg, #f0faf6 0%, #ffffff 100%);
  padding: 48px 0 36px; text-align: center;
}
.hero h1 { font-size: 30px; font-weight: 800; margin-bottom: 12px; }
.hero p { color: var(--text-muted); max-width: 640px; margin: 0 auto; }

/* ---------- 卡片 ---------- */
.card-grid {
  display: grid; gap: 16px;
  grid-template-columns: 1fr;
}
.card {
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: #fff;
  transition: box-shadow .2s;
}
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }
.card-body { padding: 16px; }
.card-body h3 { font-size: 18px; margin-bottom: 8px; }
.card-body p { color: var(--text-muted); font-size: 14px; }
.card-meta { font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.badge {
  display: inline-block; font-size: 12px; font-weight: 700;
  background: var(--accent); color: #fff;
  padding: 2px 10px; border-radius: 999px; margin-bottom: 8px;
}

/* ---------- 推广链接披露条（合规组件） ---------- */
.disclosure-bar {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: var(--radius);
  padding: 12px 14px; margin: 20px 0;
  font-size: 14px; color: #5c4a00;
  display: flex; gap: 10px; align-items: flex-start;
}
.disclosure-tag {
  flex: none; font-size: 12px; font-weight: 800;
  background: #d97706; color: #fff;
  padding: 2px 8px; border-radius: 6px;
  margin-top: 2px;
}

/* ---------- 文章排版 ---------- */
.article h1 { font-size: 26px; font-weight: 800; line-height: 1.4; margin: 12px 0; }
.article h2 { font-size: 21px; font-weight: 800; margin: 32px 0 12px; padding-top: 8px; }
.article h3 { font-size: 18px; font-weight: 700; margin: 24px 0 10px; }
.article p { margin: 12px 0; }
.article ul, .article ol { margin: 12px 0 12px 22px; }
.article-meta { font-size: 13px; color: var(--text-muted); }
.breadcrumb { font-size: 13px; color: var(--text-muted); margin: 16px 0 4px; }

/* ---------- 产品对比表组件 ---------- */
.compare-wrap { overflow-x: auto; margin: 16px -16px; padding: 0 16px; }
.compare-table {
  width: 100%; min-width: 560px;
  border-collapse: collapse; font-size: 14px;
}
.compare-table th, .compare-table td {
  border: 1px solid var(--border); padding: 10px 12px;
  text-align: left; vertical-align: top;
}
.compare-table thead th {
  background: var(--bg-soft); font-weight: 700; white-space: nowrap;
}
.compare-table .winner { background: var(--pro-bg); font-weight: 700; }

/* ---------- 优缺点框 ---------- */
.pros-cons { display: grid; gap: 12px; grid-template-columns: 1fr; margin: 16px 0; }
.pros, .cons {
  border-radius: var(--radius); padding: 14px 16px; font-size: 15px;
}
.pros { background: var(--pro-bg); border: 1px solid var(--pro-border); }
.cons { background: var(--con-bg); border: 1px solid var(--con-border); }
.pros h4, .cons h4 { font-size: 16px; margin-bottom: 8px; }
.pros ul, .cons ul { margin-left: 20px; }

/* ---------- CTA 按钮 ---------- */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 8px;
  font-weight: 700; font-size: 16px; text-align: center;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--bg-soft); text-decoration: none; }
.aff-note { font-size: 12px; color: var(--text-muted); }

/* ---------- FAQ 区块 ---------- */
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 10px; overflow: hidden;
}
.faq-q {
  width: 100%; text-align: left; background: #fff; border: 0;
  padding: 14px 16px; font-size: 16px; font-weight: 700;
  cursor: pointer; display: flex; justify-content: space-between; gap: 8px;
}
.faq-q::after { content: "+"; color: var(--accent); font-size: 20px; }
.faq-item.open .faq-q::after { content: "−"; }
.faq-a { display: none; padding: 0 16px 14px; color: var(--text); font-size: 15px; }
.faq-item.open .faq-a { display: block; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-soft); border-top: 1px solid var(--border);
  margin-top: 48px; padding: 32px 0;
  font-size: 14px; color: var(--text-muted);
}
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 12px; }

/* ---------- 表单 ---------- */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-weight: 700; margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 10px 12px; font-size: 16px;
  border: 1px solid var(--border); border-radius: 8px;
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 768px) {
  .hero h1 { font-size: 38px; }
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
  .pros-cons { grid-template-columns: 1fr 1fr; }
  .article h1 { font-size: 32px; }
}

/* ---------- 移动端导航 ---------- */
@media (max-width: 767px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: 60px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; padding: 8px 16px 16px;
  }
  .site-nav.open { display: flex; }
  .site-header { position: sticky; }
  .header-inner { position: relative; }
}

.method-note{font-size:.92rem;color:var(--text-muted);border-left:3px solid var(--accent,#2b7fff);padding:.4rem .8rem;margin:1rem 0;background:var(--bg-soft);}