/* ogg 工具站公共样式 —— 首页、工具落地页、privacy、about 共用
   不引外部依赖：Cloudflare Pages 上要自包含，少一个请求就少一次失败可能 */

:root {
  --brand: #2f6fed;
  --brand-dim: #5485f0;
  --ink: #1f2733;
  --dim: #5b6675;
  --faint: #8a93a3;
  --line: #e3e6ea;
  --bg-soft: #f7f8fa;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  line-height: 1.75;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); }
img { max-width: 100%; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.wrap--narrow { max-width: 760px; }

/* ---------- 顶栏 ---------- */
.site-header { border-bottom: 1px solid var(--line); background: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 20px; }
.site-brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 17px; letter-spacing: .3px; text-decoration: none; color: var(--ink); }
.site-brand img { width: 26px; height: 26px; }
.site-brand span { color: var(--faint); font-weight: 400; font-size: 14px; }
.site-nav { display: flex; align-items: center; gap: 18px; font-size: 14px; }
.site-nav a { color: var(--dim); text-decoration: none; }
.site-nav a:hover { color: var(--brand); }
.site-nav a.is-active { color: var(--brand); font-weight: 600; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 72px; padding: 26px 0 44px; font-size: 13px; color: var(--faint); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; }
.site-footer a { color: var(--faint); text-decoration: none; }
.site-footer a:hover { color: var(--brand); }

/* ---------- 广告位占位 ----------
   虚线框只为开发时定位，接真实广告代码时替换框内内容，宽高保持不变 */
.ad { display: flex; align-items: center; justify-content: center; border: 1px dashed #cbd3de; border-radius: 8px; background: #fff; }
.ad__label { font-size: 12px; color: #a3abb8; letter-spacing: .5px; }
.ad--leaderboard { width: 728px; max-width: 100%; height: 90px; margin: 0 auto; }
.ad--inline { width: 100%; height: 90px; margin: 26px 0; }

/* ---------- 首页 ---------- */
.hero { padding: 64px 0 12px; text-align: center; }
.hero h1 { font-size: 38px; line-height: 1.25; margin: 0 0 16px; letter-spacing: -.5px; }
.hero p { font-size: 17px; color: var(--dim); margin: 0 auto; max-width: 560px; }
.hero .hero__tag { display: inline-block; margin-bottom: 18px; padding: 4px 13px; border-radius: 999px; background: #eef4ff; color: var(--brand); font-size: 13px; font-weight: 600; }

.section-title { display: flex; align-items: baseline; gap: 10px; margin: 52px 0 20px; }
.section-title h2 { font-size: 20px; margin: 0; }
.section-title span { font-size: 13px; color: var(--faint); }

.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.tool-card { display: block; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: inherit; transition: border-color .15s, box-shadow .15s, transform .15s; background: #fff; }
.tool-card:hover { border-color: var(--brand); box-shadow: 0 4px 18px rgba(47,111,237,.1); transform: translateY(-2px); }
.tool-card__head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.tool-card__icon { font-size: 22px; line-height: 1; }
.tool-card__name { font-size: 16px; font-weight: 600; }
.tool-card__desc { font-size: 14px; color: var(--dim); margin: 0; }
.tool-card__meta { margin-top: 12px; font-size: 12px; color: var(--faint); }
.tool-card--soon { opacity: .55; pointer-events: none; }

/* ---------- 工具落地页 ---------- */
.tool-hero { padding: 48px 0 8px; }
.tool-hero h1 { font-size: 32px; margin: 0 0 14px; line-height: 1.3; }
.tool-hero .lead { font-size: 17px; color: var(--dim); margin: 0 0 26px; max-width: 640px; }
.cta { display: inline-block; background: var(--brand); color: #fff; font-weight: 600; text-decoration: none; padding: 13px 32px; border-radius: 9px; }
.cta:hover { background: var(--brand-dim); }
.cta-note { font-size: 13px; color: var(--faint); margin-top: 10px; }
.steps { padding-left: 20px; }
.steps li { margin: 8px 0; }
.callout { background: #f0f6ff; border-left: 3px solid var(--brand); padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 18px 0; }

/* ---------- 正文页（privacy / about） ---------- */
.prose h1 { font-size: 30px; margin: 48px 0 10px; }
.prose h2 { font-size: 19px; margin: 38px 0 12px; }
.prose h3 { font-size: 16px; margin: 24px 0 6px; }
.prose p, .prose li { color: #333c4a; }
.prose ul { padding-left: 22px; }
.prose .updated { font-size: 13px; color: var(--faint); margin-bottom: 26px; }
.prose table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 15px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; }
.prose th { background: var(--bg-soft); font-weight: 600; }

@media (max-width: 600px) {
  .hero { padding: 40px 0 8px; }
  .hero h1 { font-size: 28px; }
  .tool-hero h1 { font-size: 25px; }
  .site-brand span { display: none; }
}