/* 日常效率手记 · 站点样式（纯手写、零依赖） */
:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #2c3238;
  --muted: #7a838c;
  --accent: #2f6fed;
  --accent-dark: #1f57c9;
  --border: #e4e7eb;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 顶栏 */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 10px;
  padding-bottom: 10px;
}
.brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.5px;
}
.nav { display: flex; gap: 18px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.nav a:hover { color: var(--accent); }
.nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

/* 首屏 */
.hero { padding: 56px 0 24px; }
.hero.small { padding: 40px 0 16px; }
.hero h1 {
  margin: 0 0 12px;
  font-size: 2rem;
}
.hero p { color: var(--muted); margin: 0; }

/* 卡片网格 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px;
  padding: 16px 0 8px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
a.card:hover {
  box-shadow: 0 6px 18px rgba(20, 30, 50, 0.08);
  transform: translateY(-2px);
}
.card h2 { margin: 0; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.card .more { color: var(--accent); font-size: 0.88rem; margin-top: auto; }
.card.muted { background: #fbfbfc; }

/* 标签 */
.tag {
  align-self: flex-start;
  font-size: 0.78rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 10px;
  margin-top: auto;
}
.tag.ok {
  color: #1d7a3e;
  border-color: #bfe3cc;
  background: #effaf2;
}

/* 段落区块 */
.section { padding: 20px 0; }
.section h2 { font-size: 1.15rem; margin: 24px 0 8px; }
.section p { color: var(--text); }

/* 列表 */
.posts { list-style: none; padding: 0; margin: 0; }
.posts li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  color: var(--text);
}
.posts time { color: var(--muted); margin-right: 12px; font-variant-numeric: tabular-nums; }

/* 下载卡片 */
.download-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 16px 0 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.dl-head { display: flex; align-items: center; gap: 16px; }
.dl-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dl-head h2 { margin: 0; font-size: 1.2rem; }
.dl-meta { margin: 4px 0 0; color: var(--muted); font-size: 0.9rem; }
.dl-note {
  background: #f2f6ff;
  border: 1px solid #dbe6fb;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.92rem;
}
.dl-btn {
  display: block;
  text-align: center;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  padding: 13px 0;
  transition: background 0.15s ease;
}
.dl-btn:hover { background: var(--accent-dark); }
.dl-hash summary { cursor: pointer; color: var(--muted); font-size: 0.88rem; }
.dl-hash code {
  display: block;
  margin-top: 8px;
  word-break: break-all;
  font-size: 0.8rem;
  color: var(--muted);
  background: #f4f5f7;
  border-radius: 6px;
  padding: 8px 10px;
}
.dl-tip { color: var(--muted); font-size: 0.86rem; }

/* 下载页应用列表（多 APK 并列·每行=名称/最新版本/更新时间/大小/扫码直下二维码/直接下载） */
.app-list {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.app-list-head,
.app-row {
  display: grid;
  grid-template-columns: minmax(140px, 1.6fr) 88px 100px 64px 136px 104px;
  gap: 8px;
  align-items: center;
  padding: 12px 16px;
}
.app-list-head {
  background: #f9fafb;
  color: var(--muted);
  font-size: 0.82rem;
  border-bottom: 1px solid var(--border);
}
.app-row { border-bottom: 1px solid var(--border); }
.app-row:last-child { border-bottom: none; }
.app-row:hover { background: #fafbfd; }
.app-name { display: flex; align-items: center; gap: 12px; min-width: 0; }
.app-name h2 { margin: 0; font-size: 1.02rem; }
.app-name .dl-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 0.82rem;
}
.cell-ver, .cell-date, .cell-size {
  font-variant-numeric: tabular-nums;
  font-size: 0.92rem;
}
.cell-qr img {
  width: 128px;
  height: 128px;
  display: block;
  /* 410px 源图平滑缩小即可，勿加 image-rendering:pixelated——
     非整数比最近邻采样会让二维码模块线宽抖动，反而伤扫码 */
}
.dl-btn-sm {
  display: inline-block;
  text-align: center;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  padding: 9px 0;
  font-size: 0.9rem;
  transition: background 0.15s ease;
}
.dl-btn-sm:hover { background: var(--accent-dark); }
.qr-note { color: var(--muted); font-size: 0.86rem; margin: 0; }

/* 列表移动端堆叠：名称 → 版本/时间/大小一行 → 二维码+下载并排 */
@media (max-width: 640px) {
  .app-list-head { display: none; }
  .app-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 12px;
  }
  .app-name { flex: 1 1 100%; }
  .cell-ver, .cell-date, .cell-size { flex: 1; }
  .dl-btn-sm { order: 6; flex: 1; }
  .cell-qr { order: 5; }
}

/* 微信内打开提示条（微信内置浏览器拦截 APK 下载·引导外开） */
.wx-tip {
  display: none;
  background: #fff7e6;
  border: 1px solid #ffe1a6;
  color: #8a5a00;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 0.92rem;
}
.wx-tip.show { display: block; }

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 20px 0 32px;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

/* 移动端 */
@media (max-width: 560px) {
  .hero h1 { font-size: 1.55rem; }
  .nav { gap: 14px; }
  .nav a { font-size: 0.9rem; }
}