/* 马老师工具导航 · 青绿雾面（博客 bg-eooce 同款）+ zb 式 Bing 壁纸层 */
:root {
  --bg: #e2efec;
  --card: rgba(255, 255, 255, 0.86);
  --card-border: rgba(255, 255, 255, 0.7);
  --card-shadow: 0 12px 32px rgba(24, 90, 86, 0.11);
  --line: rgba(24, 90, 86, 0.14);
  --text: #22312e;
  --text-dim: #5b6b68;
  --text-secondary: #5b6b68;
  --accent: #185a56;
  --accent-2: #2a7d76;
  --danger: #d6336c;
  --ok: #2b8a3e;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ---- 背景层：壁纸（zb 式全屏） + 青绿雾面渐变（博客式，半透让照片隐约透出） ---- */
.wallpaper-bg {
  position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none;
  background: linear-gradient(165deg, #f3f8f7 0%, #e2efec 48%, #cfe4df 100%);
}
.wallpaper-bg img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  animation: wpFadeIn 0.8s ease;
}
@keyframes wpFadeIn { from { opacity: 0; } to { opacity: 1; } }
.mist-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 480px at 15% -5%, rgba(255, 183, 77, 0.28), transparent 60%),
    radial-gradient(1000px 560px at 88% 0%, rgba(24, 90, 86, 0.30), transparent 55%),
    radial-gradient(800px 500px at 50% 110%, rgba(24, 90, 86, 0.20), transparent 60%),
    linear-gradient(165deg, rgba(243, 248, 247, 0.72) 0%, rgba(226, 239, 236, 0.66) 48%, rgba(207, 228, 223, 0.74) 100%);
  background-attachment: fixed;
}
.head-rel, .wrap { position: relative; z-index: 1; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 20px 16px 40px; }

header.site-head { text-align: center; padding: 18px 0 6px; }
header.site-head h1 { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: 1px; color: var(--text); }
header.site-head p { margin: 6px 0 0; color: var(--text-dim); font-size: 13.5px; }
header.site-head .admin-entry {
  position: absolute; top: 16px; right: 18px; font-size: 13px; color: var(--accent);
  padding: 8px 14px; border: 1px solid var(--card-border); border-radius: 999px;
  background: rgba(255, 255, 255, 0.55); backdrop-filter: blur(10px) saturate(1.08);
  box-shadow: 0 4px 14px rgba(24, 90, 86, 0.08);
}
header.site-head .admin-entry:hover { background: rgba(255, 255, 255, 0.85); }
.head-rel { position: relative; max-width: 1200px; margin: 0 auto; }

/* 分类 chips */
.tools-cats { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0 16px; }
.tcat {
  padding: 8px 16px; border-radius: 999px; font-size: 14px;
  color: var(--text-dim); background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(10px) saturate(1.08);
  transition: all 0.2s; cursor: pointer;
}
.tcat:hover { color: var(--text); transform: translateY(-1px); background: rgba(255, 255, 255, 0.8); }
.tcat.active {
  color: #fff; font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; box-shadow: 0 4px 14px rgba(24, 90, 86, 0.35);
}
.tcat-n { font-size: 11px; opacity: 0.8; margin-left: 6px; background: rgba(24, 90, 86, 0.1); padding: 1px 7px; border-radius: 999px; }
.tcat.active .tcat-n { background: rgba(255, 255, 255, 0.25); }

/* 搜索 */
.tools-search { margin-bottom: 20px; }
.se-engines { display: flex; gap: 4px; margin-bottom: 10px; flex-wrap: wrap; }
.se-btn {
  padding: 5px 14px; border-radius: 8px; font-size: 13px;
  color: var(--text-dim); background: transparent;
  border: 1px solid transparent; cursor: pointer; transition: all 0.2s;
}
.se-btn:hover { color: var(--text); background: rgba(255, 255, 255, 0.5); }
.se-btn.active { color: var(--accent); font-weight: 600; background: rgba(24, 90, 86, 0.09); border-color: rgba(24, 90, 86, 0.25); }
.se-box {
  display: flex; gap: 8px; max-width: 560px; margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--card-border); border-radius: 20px; padding: 6px 6px 6px 18px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(10px) saturate(1.08);
}
.se-box input { flex: 1; border: none; outline: none; background: transparent; font-size: 15px; color: var(--text); min-width: 0; }
.se-box input::placeholder { color: #8aa39d; }
.se-go { width: 44px; height: 40px; border: none; border-radius: 14px; font-size: 18px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; cursor: pointer; transition: transform 0.2s; }
.se-go:hover { transform: scale(1.05); }
.se-go:active { transform: scale(0.97); }

/* 卡片网格（博客同款玻璃白） */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.tool-card {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-radius: 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(10px) saturate(1.08);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.tool-card:hover { transform: translateY(-3px); border-color: rgba(24, 90, 86, 0.35); box-shadow: 0 18px 38px rgba(24, 90, 86, 0.16); }
.tool-icon { width: 40px; height: 40px; border-radius: 12px; object-fit: contain; flex-shrink: 0; background: #fff; padding: 4px; border: 1px solid rgba(24, 90, 86, 0.06); }
.tool-icon-fallback {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.tool-info { min-width: 0; }
.tool-name { font-size: 14px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tool-desc { font-size: 12px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.tools-empty { text-align: center; padding: 60px 0; color: var(--text-dim); }
.tools-loading { text-align: center; padding: 60px 0; color: var(--text-dim); }

/* 投稿 */
.tools-submit-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; margin: 20px 0 8px; padding: 13px;
  font-size: 14.5px; font-weight: 600; color: var(--accent);
  background: rgba(255, 255, 255, 0.45);
  border: 1.5px dashed rgba(24, 90, 86, 0.45); border-radius: 20px; cursor: pointer; transition: all 0.2s;
  backdrop-filter: blur(10px) saturate(1.08);
}
.tools-submit-btn:hover { background: rgba(255, 255, 255, 0.75); border-style: solid; transform: translateY(-1px); }
.modal-mask {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(34, 49, 46, 0.35); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal-card {
  width: 100%; max-width: 440px; max-height: 90vh; overflow-y: auto;
  background: rgba(255, 255, 255, 0.92); border: 1px solid var(--card-border);
  border-radius: 24px; padding: 22px; box-shadow: 0 20px 60px rgba(24, 90, 86, 0.25); text-align: left;
  backdrop-filter: blur(14px) saturate(1.1);
  color: var(--text);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.modal-head h3 { margin: 0; font-size: 17px; font-weight: 800; }
.modal-close { width: 30px; height: 30px; border-radius: 50%; border: none; background: rgba(24, 90, 86, 0.08); color: var(--text); font-size: 14px; cursor: pointer; }
.modal-desc { font-size: 13px; color: var(--text-secondary); margin: 0 0 16px; }
.field-label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 6px; color: var(--text); }
.field-input {
  width: 100%; font-size: 14.5px; padding: 11px 14px;
  border-radius: 12px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7); color: var(--text); outline: none;
}
.field-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(24, 90, 86, 0.15); }
.field-cats { display: flex; flex-wrap: wrap; gap: 8px; max-height: 120px; overflow-y: auto; }
.field-cat { font-size: 13px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.5); color: var(--text-secondary); cursor: pointer; }
.field-cat.active { color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; }
.field-submit {
  width: 100%; margin-top: 18px; padding: 13px; font-size: 15px; font-weight: 700;
  color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; border-radius: 14px; cursor: pointer; box-shadow: 0 6px 18px rgba(24, 90, 86, 0.3);
}
.field-submit:disabled { opacity: 0.6; cursor: default; }
.field-msg { margin: 12px 0 0; font-size: 13.5px; text-align: center; color: var(--danger); }
.field-msg.ok { color: var(--ok); }
.hidden { display: none !important; }
footer.site-foot { text-align: center; color: var(--text-dim); font-size: 12.5px; padding: 18px 0 6px; }

@media (max-width: 640px) {
  /* 移动端背景改 scroll 防抖动 */
  .mist-bg { background-attachment: scroll; }
  body { background-attachment: scroll; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .tool-card { padding: 10px 12px; border-radius: 20px; }
  .tool-icon, .tool-icon-fallback { width: 34px; height: 34px; font-size: 15px; }
  .tools-cats { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 6px; scrollbar-width: none; }
  .tools-cats::-webkit-scrollbar { display: none; }
  .tcat { flex-shrink: 0; min-height: 44px; }
  .se-btn { min-height: 44px; }
  .se-box { padding: 4px 4px 4px 14px; }
  .se-box input { font-size: 16px; }
  .se-go { width: 48px; height: 44px; flex-shrink: 0; }
  .modal-mask { padding: 16px; }
  .modal-card { padding: 18px; max-height: 86vh; }
  .modal-close { width: 44px; height: 44px; font-size: 16px; flex-shrink: 0; }
  .field-input { font-size: 16px; }
  .field-cat { min-height: 44px; }
  header.site-head h1 { font-size: 21px; }
  header.site-head .admin-entry { top: 10px; right: 10px; }
}