:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #e3e6eb;
  --text: #1f2329;
  --muted: #8a9099;
  --primary: #2563eb;
  --ok: #16a34a;
  --bad: #dc2626;
  --warn: #d97706;
  --radius: 8px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 12px; }
.grow { flex: 1; }

/* 登录 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card {
  width: 340px; padding: 32px; background: var(--panel);
  border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.08);
}
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card p { margin: 0 0 20px; }

/* 顶栏 */
.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; font-size: 16px; }
.stats { display: flex; gap: 14px; align-items: center; }
.stat { font-size: 13px; color: var(--muted); }
.stat b { color: var(--text); font-size: 15px; }
.stat.ok b { color: var(--ok); }
.stat.bad b { color: var(--bad); }
.topbar-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 10px; background: #eef0f3; color: var(--muted); }
.badge.ok { background: #e7f7ed; color: var(--ok); }
.badge.bad { background: #fdecec; color: var(--bad); }

/* 工具条 */
.toolbar { display: flex; align-items: center; gap: 10px; padding: 12px 20px; flex-wrap: wrap; }
main { padding: 0 20px 40px; }

/* 表格 */
.grid { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.grid th, .grid td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.grid th { background: #fafbfc; font-weight: 600; font-size: 13px; color: #4b5563; white-space: nowrap; }
.grid tr:last-child td { border-bottom: none; }
.grid tr.offline { background: #fff6f6; }
.grid tr.offline td:first-child { box-shadow: inset 3px 0 0 var(--bad); }
.grid tr.disabled { opacity: .62; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot.on { background: var(--ok); box-shadow: 0 0 0 3px rgba(22,163,74,.15); }
.dot.off { background: var(--bad); }
.dot.dis { background: var(--muted); }
.state-on { color: var(--ok); font-weight: 600; }
.state-off { color: var(--bad); font-weight: 600; }
.state-dis { color: var(--muted); font-weight: 600; }

/* 播放地址列变长后会把名称列挤成竖排，这里给名称/流ID 列兜底最小宽度 */
.grid th:nth-child(2), .grid td:nth-child(2) { min-width: 132px; }
.grid th:nth-child(3), .grid td:nth-child(3) { min-width: 64px; }
.ch-name { font-weight: 600; }
.ch-remark { color: var(--muted); font-size: 12px; margin-top: 2px; word-break: break-all; }
code.sid { background: #eef1f5; padding: 1px 6px; border-radius: 4px; font-size: 12px; }

/* 地址行 */
.addr { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
.addr:last-child { margin-bottom: 0; }
.addr .tag { flex: none; width: 52px; font-size: 11px; color: var(--muted); text-align: right; }
.addr .val {
  flex: 1; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px;
  background: #f7f8fa; border: 1px solid var(--border); border-radius: 4px;
  padding: 3px 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 320px;
}
.copy { flex: none; border: 1px solid var(--border); background: #fff; border-radius: 4px;
  cursor: pointer; font-size: 11px; padding: 3px 7px; color: #4b5563; }
.copy:hover { border-color: var(--primary); color: var(--primary); }
.copy.done { border-color: var(--ok); color: var(--ok); }

.metrics { font-size: 12px; line-height: 1.7; }
.metrics span { color: var(--muted); }
.metrics b { font-weight: 600; }

/* 按钮 */
.btn { border: 1px solid var(--border); background: #fff; color: var(--text);
  padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.btn:hover { border-color: #c6cbd3; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: #1d4ed8; }
.btn.ghost { border-color: transparent; background: transparent; color: #4b5563; }
.btn.danger { color: var(--bad); border-color: #f2c9c9; }
.btn.small { padding: 4px 8px; font-size: 12px; }
.btn.block { width: 100%; margin-top: 8px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.row-actions { display: flex; flex-wrap: wrap; gap: 4px; }

/* 表单 */
label { display: block; margin-bottom: 12px; font-size: 13px; }
label.check { display: flex; align-items: center; gap: 6px; }
input, textarea, .input {
  width: 100%; padding: 7px 10px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 13px; font-family: inherit; margin-top: 4px; background: #fff;
}
label.check input { width: auto; margin: 0; }
.toolbar .input, .toolbar input { width: 220px; margin: 0; }
input:focus, textarea:focus { outline: 2px solid rgba(37,99,235,.25); border-color: var(--primary); }
.req { color: var(--bad); }
.form-error { color: var(--bad); font-size: 13px; min-height: 20px; }

/* 弹窗 */
.modal { position: fixed; inset: 0; background: rgba(15,20,28,.45);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-card { background: var(--panel); border-radius: 10px; padding: 24px;
  width: 460px; max-width: 100%; max-height: 90vh; overflow: auto; }
.modal-card.wide { width: 860px; }
.modal-card h2 { margin: 0 0 16px; font-size: 17px; }
.modal-card h3 { margin: 18px 0 8px; font-size: 14px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
#preview-video { width: 100%; max-height: 60vh; background: #000; border-radius: 6px; display: block; }
.preview-meta { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
/* 播放方式切换：选中态要一眼可见，出错原因用红字留在状态栏 */
.btn.on { background: var(--primary); border-color: var(--primary); color: #fff; }
#preview-stats { font-size: 12px; }
#preview-stats.ok { color: var(--ok); }
#preview-stats.warn { color: var(--warn); }
#preview-stats.err { color: var(--bad); }
.token-add { display: flex; gap: 8px; align-items: center; }
.token-add .input { margin: 0; }
.token-list { list-style: none; padding: 0; margin: 10px 0 0; max-height: 220px; overflow: auto; }
.token-list li { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.token-list code { font-size: 11px; word-break: break-all; flex: 1; }
.empty { padding: 48px; text-align: center; color: var(--muted);
  background: var(--panel); border: 1px dashed var(--border); border-radius: var(--radius); }

/* 流量日志汇总条 */
#tf-summary { display: flex; flex-wrap: wrap; gap: 6px 18px; padding: 10px 12px; margin-bottom: 10px;
  background: #fafbfc; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; }
#tf-summary .m { display: flex; align-items: baseline; gap: 6px; }
#tf-summary .m b { font-size: 15px; }
#tf-summary .note { flex-basis: 100%; color: var(--warn); font-size: 12px; }
#tf-table td { font-size: 12px; }
#modal-traffic .toolbar { padding: 0 0 12px; }
#modal-traffic .toolbar .input { width: auto; min-width: 120px; }

/* 提示 */
#toasts { position: fixed; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast { background: #1f2329; color: #fff; padding: 10px 14px; border-radius: 6px;
  font-size: 13px; box-shadow: 0 6px 20px rgba(0,0,0,.2); animation: slide .2s ease; max-width: 380px; }
.toast.ok { background: var(--ok); }
.toast.err { background: var(--bad); }
@keyframes slide { from { transform: translateX(20px); opacity: 0; } }

@media (max-width: 1100px) {
  .addr .val { max-width: 220px; }
  .grid { font-size: 12px; }
}