:root {
  --bg: #f2f5fa;
  --panel: #ffffff;
  --border: #e5eaf2;
  --border-strong: #ccd6e4;
  --text: #1f2937;
  --text-2: #5b6675;
  --text-3: #8a94a6;
  --primary: #3b6fd4;
  --primary-2: #5a8be0;
  --primary-weak: #eef3fc;
  --danger: #d64545;
  --ok: #1a9c6b;
  --mark: #ffe08a;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(31, 51, 102, .07);
  --grad: linear-gradient(135deg, #3b6fd4, #5a8be0);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: linear-gradient(180deg, #e8effb 0%, var(--bg) 260px);
  min-height: 100vh;
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============ 顶栏（蓝渐变，与小程序导航同风格） ============ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--grad);
  box-shadow: 0 4px 16px rgba(59, 111, 212, .28);
}
.topbar .brand {
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.topbar .links {
  font-size: 13px;
  color: rgba(255, 255, 255, .85);
  display: flex;
  gap: 16px;
  align-items: center;
}
.topbar .links a {
  color: #fff;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 999px;
  padding: 4px 14px;
  transition: .15s;
}
.topbar .links a:hover {
  background: rgba(255, 255, 255, .28);
  text-decoration: none;
}

/* ============ 首页搜索 ============ */
.search-page {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px 60px;
}
.hero {
  padding: 64px 0 26px;
  text-align: center;
}
.hero h1 {
  margin: 0 0 8px;
  font-size: 30px;
  letter-spacing: 1px;
}
.hero p {
  margin: 0;
  color: var(--text-3);
  font-size: 13px;
}
.search-box {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  padding: 0 16px;
  transition: border-color .15s, box-shadow .15s;
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 111, 212, .14);
}
.search-box input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 17px;
  padding: 16px 0;
  color: var(--text);
  font-family: inherit;
}
.search-box input::placeholder { color: var(--text-3); }
.search-box .clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: #fff;
  cursor: pointer;
  color: var(--text-3);
  font-size: 18px;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 6px;
}
.search-box .clear:hover { background: #f0f2f5; color: var(--text); }

.meta-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 14px 2px 10px;
  font-size: 13px;
  color: var(--text-2);
  min-height: 22px;
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 10px;
  cursor: pointer;
  color: var(--text-2);
  font-size: 12px;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }

.result {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.result-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.tag {
  font-size: 12px;
  padding: 1px 8px;
  border-radius: 4px;
  background: var(--primary-weak);
  color: var(--primary);
  border: 1px solid #cfe0f8;
}
.tag.no { background: #f1f3f6; color: var(--text-2); border-color: var(--border); }
.result .q {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 10px;
  word-break: break-word;
}
.result .a {
  background: #f8fafc;
  border-left: 3px solid var(--ok);
  border-radius: 0 6px 6px 0;
  padding: 10px 12px;
  white-space: pre-wrap;
  word-break: break-word;
}
.result .a .label { color: var(--ok); font-weight: 700; margin-right: 6px; }
.result .opts { margin-top: 10px; color: var(--text-2); font-size: 14px; }
.result .opts div { padding: 1px 0; }
.result .note { margin-top: 8px; font-size: 13px; color: var(--text-3); }
.result .actions { margin-top: 10px; display: flex; gap: 10px; }
.btn-mini {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-2);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.btn-mini:hover { border-color: var(--primary); color: var(--primary); }

mark { background: var(--mark); color: inherit; padding: 0 1px; border-radius: 2px; }

.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-3);
}
.empty .big { font-size: 40px; opacity: .35; }
.hint-list { margin-top: 18px; font-size: 13px; color: var(--text-3); text-align: center; }

/* ============ 后台 ============ */
.admin {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 22px;
  margin-bottom: 18px;
}
.card h2 {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.card .desc { color: var(--text-3); font-size: 12.5px; margin-bottom: 14px; }

.drop {
  border: 2px dashed var(--border-strong);
  border-radius: 12px;
  padding: 26px;
  text-align: center;
  color: var(--text-2);
  cursor: pointer;
  transition: .15s;
  background: #fbfcff;
  font-weight: 500;
}
.drop::before {
  content: '📥';
  display: block;
  font-size: 30px;
  margin-bottom: 6px;
  opacity: .75;
}
.drop:hover, .drop.over {
  border-color: var(--primary);
  background: var(--primary-weak);
  color: var(--primary);
}

.btn {
  border: 1px solid transparent;
  background: var(--grad);
  color: #fff;
  border-radius: 10px;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 4px 12px rgba(59, 111, 212, .25);
  transition: .15s;
}
.btn:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(59, 111, 212, .32); }
.btn:active { transform: translateY(0); }
.btn.ghost {
  background: #fff;
  color: var(--text-2);
  border-color: var(--border-strong);
  box-shadow: none;
}
.btn.ghost:hover { border-color: var(--primary); color: var(--primary); transform: none; box-shadow: none; }
.btn.danger {
  background: #fff;
  color: var(--danger);
  border-color: #f0c6c6;
  box-shadow: none;
  font-weight: 500;
}
.btn.danger:hover { background: #fdf1f1; border-color: var(--danger); transform: none; box-shadow: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
label.fld { display: block; margin-bottom: 12px; }
label.fld span { display: block; font-size: 12.5px; color: var(--text-2); margin-bottom: 5px; font-weight: 600; }
input[type=text], input[type=number], textarea, select {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #fbfcff;
  outline: 0;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
input:hover, textarea:hover, select:hover { border-color: #aebfd8; }
input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(59, 111, 212, .12);
}
textarea { resize: vertical; min-height: 60px; }
.inline-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.inline-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.inline-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
@media (max-width: 720px) { .inline-5 { grid-template-columns: repeat(2, 1fr); } }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { border-bottom: 1px solid var(--border); padding: 9px 10px; text-align: left; vertical-align: top; }
th {
  background: #f3f6fc;
  color: #4a5872;
  font-weight: 700;
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}
td .qtext { max-width: 420px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
tr:hover td { background: #f6f9ff; }

.msg { padding: 9px 14px; border-radius: 10px; font-size: 13px; margin-top: 12px; }
.msg.ok { background: #eaf7f1; color: var(--ok); border: 1px solid #c8ebdb; }
.msg.err { background: #fdeeee; color: var(--danger); border: 1px solid #f6d3d3; }
.msg.info { background: var(--primary-weak); color: var(--primary); border: 1px solid #cfe0f8; }

.preview { max-height: 260px; overflow: auto; border: 1px solid var(--border); border-radius: 10px; margin-top: 10px; }

/* 统计块：大数字蓝底白卡，横向排列 */
.stat-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 4px 0 2px; }
.stat-row > div {
  flex: 1;
  min-width: 120px;
  background: linear-gradient(135deg, #f2f7ff, #fbfdff);
  border: 1px solid #dce7f8;
  border-radius: 12px;
  padding: 12px 16px;
  text-align: center;
  color: var(--text-2);
  font-size: 12.5px;
}
.stat-row > div:hover { border-color: var(--primary-2); }
.stat-row b {
  display: block;
  color: var(--primary);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 2px;
}

.hidden { display: none !important; }
.small { font-size: 12px; color: var(--text-3); }