/* ===== 后台 ===== */
.admin { position: relative; z-index: 1; padding-top: 40px; padding-bottom: 40px; }

/* 登录 */
.login-wrap { display: grid; place-items: center; min-height: calc(100vh - 260px); }
.login-card {
  width: 100%;
  max-width: 380px;
  padding: 32px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card-hi), var(--card));
  box-shadow: 0 30px 60px -30px rgba(15, 23, 42, 0.35);
}
.login-card .eyebrow { margin: 0 0 10px; }
.login-card h1 { margin: 0 0 8px; font-size: 24px; letter-spacing: -0.02em; }
.login-sub { margin: 0 0 22px; font-size: 13px; color: var(--dim); line-height: 1.7; }
.login-card label { display: block; margin-bottom: 14px; font-size: 12.5px; color: var(--muted); }
.login-card input {
  display: block;
  width: 100%;
  margin-top: 7px;
  font: inherit;
  font-size: 14px;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--inset-soft);
  color: var(--text);
  outline: none;
}
.login-card input:focus { border-color: var(--green-line); }
.login-card button {
  width: 100%;
  margin-top: 8px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--green-line);
  background: var(--green-fill);
  color: var(--green-ink);
  cursor: pointer;
  transition: background 0.16s;
}
.login-card button:hover { background: var(--green-fill-hi); }
.login-card button[disabled] { opacity: 0.5; }
.login-err { margin: 14px 0 0; font-size: 13px; color: var(--red); }

/* 头部 */
.dash-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 22px; }
.dash-head h1 { margin: 0 0 6px; font-size: clamp(22px, 2.6vw, 30px); letter-spacing: -0.02em; }
.dash-sub { margin: 0; font-size: 12.5px; color: var(--dim); font-family: var(--mono); }
.dash-tools { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* tabs */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 26px; flex-wrap: wrap; }
.tab {
  font: inherit;
  font-size: 13.5px;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px 14px;
  cursor: pointer;
  transition: color 0.16s, border-color 0.16s;
}
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { color: var(--green); border-bottom-color: var(--green); }

/* KPI */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 18px; }
.kpi {
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--wash-h), var(--wash-a));
}
.kpi span { display: block; font-size: 12px; color: var(--dim); }
.kpi b { display: block; font-family: var(--mono); font-size: 26px; font-weight: 600; letter-spacing: -0.02em; margin: 6px 0 2px; }
.kpi em { font-style: normal; font-size: 11.5px; color: var(--dim); }
.kpi--good b { color: var(--green); }
.kpi--bad b { color: var(--red); }

/* 面板 */
.panels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.panel {
  padding: 18px 20px 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card-hi), var(--card));
  min-width: 0;
}
.panel--wide { grid-column: 1 / -1; }
.panel header { display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.panel h2 { margin: 0; font-size: 14.5px; font-weight: 600; letter-spacing: 0.01em; }
.panel-note { font-size: 11.5px; color: var(--dim); font-family: var(--mono); }

.chart { min-height: 60px; }
.chart--line svg { display: block; }
.chart-empty { margin: 20px 0; text-align: center; color: var(--dim); font-size: 13px; }
.gl { stroke: var(--wash-i); stroke-width: 1; }
.axis { fill: var(--dim); font-size: 10px; font-family: var(--mono); }
.dot-human { fill: var(--green); }
.dot-bot { fill: var(--red); }

.legend { display: flex; gap: 16px; margin-top: 8px; font-size: 12px; color: var(--muted); }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.sw--human { background: var(--green); }
.sw--bot { background: var(--red); }

.donut { position: relative; display: grid; place-items: center; padding: 6px 0 2px; }
.donut__center { position: absolute; display: grid; place-items: center; }
.donut__center b { font-family: var(--mono); font-size: 24px; font-weight: 600; }
.donut__center span { font-size: 11px; color: var(--dim); }
.donut__legend { display: flex; gap: 16px; justify-content: center; margin-top: 10px; font-size: 12px; color: var(--muted); }

/* 条形 */
.bars { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.bars li { display: grid; grid-template-columns: minmax(70px, 34%) 1fr auto; align-items: center; gap: 10px; font-size: 12px; }
.bars__label { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bars__track { height: 7px; border-radius: 99px; background: var(--wash-j); overflow: hidden; }
.bars__track i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--green), var(--green-soft)); }
.bars__val { font-family: var(--mono); color: var(--text); font-size: 11.5px; }

/* 表格 */
.filterbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table.hits { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.hits th {
  text-align: left;
  font-weight: 500;
  color: var(--dim);
  font-size: 11.5px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
  background: var(--wash-c);
}
table.hits td { padding: 10px 14px; border-bottom: 1px solid var(--wash-i); vertical-align: top; }
table.hits tr:last-child td { border-bottom: 0; }
table.hits tr:hover td { background: var(--wash-c); }
.mono { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
.dim { color: var(--dim); }
td.ua { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--mono); font-size: 11px; color: var(--dim); }

.vtag { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 99px; white-space: nowrap; }
.vtag--human { color: var(--lane-green-ink); border: 1px solid rgba(74, 222, 128, 0.4); background: rgba(74, 222, 128, 0.1); }
.vtag--bot { color: var(--red); border: 1px solid rgba(248, 113, 113, 0.4); background: rgba(248, 113, 113, 0.1); }

/* 采集 */
.collect-form { display: flex; gap: 10px; flex-wrap: wrap; }
.collect-form input {
  flex: 1 1 320px;
  font: inherit;
  font-size: 14px;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--inset-soft);
  color: var(--text);
  outline: none;
}
.collect-form input:focus { border-color: var(--green-line); }
.collect-form button {
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 10px;
  border: 1px solid var(--green-line);
  background: var(--green-fill);
  color: var(--green-ink);
  cursor: pointer;
}
.collect-out { margin-top: 16px; font-size: 13px; color: var(--muted); }
.collect-out pre {
  margin: 12px 0 0;
  padding: 14px;
  border-radius: 10px;
  background: var(--inset);
  border: 1px solid var(--line);
  overflow: auto;
  max-height: 300px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-sub);
  white-space: pre-wrap;
}
.collect-out code, .panel code { font-family: var(--mono); font-size: 12px; background: var(--wash-j); padding: 1px 6px; border-radius: 5px; color: #d7ffe4; }

.library { display: grid; gap: 10px; max-height: 520px; overflow: auto; }
.lib-row { padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--wash-c); }
.lib-row b { font-size: 13px; }
.lib-title { font-size: 13px; color: var(--text-body); margin: 4px 0 8px; line-height: 1.6; }
.lib-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 11.5px; color: var(--dim); font-family: var(--mono); }
.lib-meta a { color: var(--muted); border-bottom: 1px solid var(--line-hi); }
.lib-meta a:hover { color: var(--green); }
.badge-idx { color: var(--amber); border: 1px dashed rgba(251, 191, 36, 0.4); border-radius: 5px; padding: 1px 6px; }

/* 规则 */
.rules { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.rules li { padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line); background: var(--wash-c); }
.rules b { display: block; font-size: 13.5px; margin-bottom: 5px; }
.rules span { font-size: 13px; color: var(--muted); line-height: 1.8; }

@media (max-width: 860px) {
  .panels { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dash-head { align-items: flex-start; }
}

/* 修正：hidden 属性不能被 display 规则覆盖 */
[hidden] { display: none !important; }

/* 修正：button 复用了 .ghost-btn，需要抹掉浏览器默认样式 */
button.ghost-btn {
  background: transparent;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  color: var(--muted);
}
button.ghost-btn:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }

/* 登录卡片出现时不要撑满整屏 */
.login-wrap { min-height: calc(100vh - 320px); }