/* ===== 智能DNS容灾平台 · 云控制台风 设计系统 ===== */
:root{
  --bg:#f0f2f5; --panel:#fff; --ink:#1d2129; --muted:#86909c; --sub:#4e5969;
  --line:#e5e6eb; --line2:#f2f3f5;
  --primary:#165dff; --primary-hover:#4080ff; --primary-soft:#e8f0ff;
  --ok:#00b42a; --ok-soft:#e8fff0; --warn:#ff7d00; --warn-soft:#fff5e8;
  --bad:#f53f3f; --bad-soft:#ffece8; --info:#722ed1; --info-soft:#f5ebff;
  --sidebar:#001529; --sidebar2:#0c2340; --sidebar-ink:#c9d3e0;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --radius:8px; --shadow:0 2px 8px rgba(0,0,0,.06); --shadow-lg:0 6px 24px rgba(0,0,0,.1);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
/* 预铺两栏底色（左 220px 侧边栏深色 / 右侧内容浅色），消除整页跳转时布局注入前的闪白 */
html{background:var(--bg)}
body{font-family:var(--font);color:var(--ink);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;
     background:linear-gradient(90deg,var(--sidebar) 220px,var(--bg) 220px);background-repeat:no-repeat;background-attachment:fixed}
a{color:inherit;text-decoration:none}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#c9cdd4;border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

/* ===== 布局骨架 ===== */
.app{display:grid;grid-template-columns:220px 1fr;grid-template-rows:56px 1fr;height:100vh;
     grid-template-areas:"logo header" "side main"}
.logo-area{grid-area:logo;background:var(--sidebar);color:#fff;display:flex;align-items:center;gap:10px;padding:0 18px;position:relative;z-index:2}
.logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#4080ff,#165dff);display:grid;place-items:center;font-weight:800;color:#fff;flex-shrink:0}
.logo-area b{font-size:15px;font-weight:600;white-space:nowrap}
.logo-area em{font-style:normal;font-size:11px;color:#7a95c2;background:#0c2340;padding:2px 6px;border-radius:4px}

header.topbar{grid-area:header;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:relative;z-index:1}
.crumb{color:var(--muted);font-size:13px}.crumb b{color:var(--ink);font-weight:600}
.htools{display:flex;align-items:center;gap:14px}
.icobtn{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;color:var(--sub);cursor:pointer;position:relative}
.icobtn:hover{background:var(--bg)}
.icobtn .dot{position:absolute;top:7px;right:8px;width:7px;height:7px;background:var(--bad);border-radius:50%;border:2px solid #fff}
.me{display:flex;align-items:center;gap:8px;cursor:pointer;padding:4px 8px;border-radius:8px}
.me:hover{background:var(--bg)}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:600;font-size:13px}

aside.sidebar{grid-area:side;background:var(--sidebar);padding:12px 10px;overflow-y:auto}
.mgroup{color:#5a6b85;font-size:11px;padding:14px 12px 6px;letter-spacing:.5px}
.mi{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:8px;color:var(--sidebar-ink);cursor:pointer;font-size:14px;margin-bottom:2px;transition:.15s}
.mi svg{width:17px;height:17px;stroke:currentColor;stroke-width:1.7;fill:none;flex-shrink:0}
.mi:hover{background:var(--sidebar2);color:#fff}
.mi.on{background:var(--primary);color:#fff}
.mi .cnt{margin-left:auto;background:var(--bad);color:#fff;font-size:11px;padding:0 7px;border-radius:20px;line-height:18px}

main.content{grid-area:main;padding:20px 22px 40px;overflow-y:auto}
/* SPA 局部刷新：主内容淡入，切换更顺滑 */
@keyframes pageIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.page-fade{animation:pageIn .16s ease}

/* ===== 页头 ===== */
.pagehead{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:18px;gap:16px;flex-wrap:wrap}
.pagehead h1{font-size:19px;font-weight:600}
.pagehead p{color:var(--muted);font-size:13px;margin-top:4px}
.pagehead .right{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* ===== 按钮 ===== */
.btn{border:1px solid var(--line);background:#fff;color:var(--sub);padding:8px 15px;border-radius:6px;font-weight:500;cursor:pointer;font-size:13px;font-family:var(--font);display:inline-flex;align-items:center;gap:6px;transition:.15s;white-space:nowrap}
.btn:hover{color:var(--primary);border-color:var(--primary)}
.btn svg{width:15px;height:15px;stroke:currentColor;stroke-width:2;fill:none}
.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 2px 6px rgba(22,93,255,.25)}
.btn.primary:hover{background:var(--primary-hover);color:#fff}
.btn.danger{color:var(--bad);border-color:transparent;background:var(--bad-soft)}
.btn.danger:hover{background:var(--bad);color:#fff;border-color:var(--bad)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.ghost:hover{background:var(--bg);color:var(--primary)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ===== 统计卡 ===== */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}
.stat{background:var(--panel);border-radius:8px;padding:20px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.stat .lab{color:var(--muted);font-size:13px}
.stat .num{font-size:30px;font-weight:700;margin-top:10px;font-variant-numeric:tabular-nums}
.stat .num small{font-size:15px;color:var(--muted);font-weight:500}
.stat .ext{font-size:12px;color:var(--muted);margin-top:8px;display:flex;gap:6px;align-items:center}
.stat .ci{position:absolute;right:16px;top:16px;width:40px;height:40px;border-radius:9px;display:grid;place-items:center}
.stat .ci svg{width:20px;height:20px;stroke-width:1.8;fill:none}

/* ===== 面板 ===== */
.panel{background:var(--panel);border-radius:8px;box-shadow:var(--shadow);margin-bottom:16px}
.panel .ph{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);gap:12px;flex-wrap:wrap}
.panel .ph h3{font-size:15px;font-weight:600}
.panel .ph .desc{color:var(--muted);font-size:12px;margin-top:2px;font-weight:400}
.panel .pb{padding:20px}
.grid2{display:grid;grid-template-columns:1.7fr 1fr;gap:16px;align-items:start}
.grid2 .panel{margin-bottom:0}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto}
table.tb{width:100%;border-collapse:collapse}
table.tb th{text-align:left;font-size:12px;color:var(--sub);font-weight:500;padding:12px 20px;background:#fafbfc;white-space:nowrap}
table.tb td{padding:13px 20px;border-bottom:1px solid var(--line);font-size:13px;vertical-align:middle}
table.tb tbody tr:last-child td{border-bottom:0}
table.tb tbody tr:hover{background:#fafbfc}
.nm{font-weight:600;color:var(--ink)}
.nm small{display:block;color:var(--muted);font-weight:400;font-size:12px;margin-top:2px}
.mono{font-family:var(--mono);font-size:12.5px}
.op{color:var(--primary);font-size:13px;cursor:pointer;margin-right:12px;white-space:nowrap}
.op:hover{text-decoration:underline}
.op.del{color:var(--bad)}

/* ===== 状态 / 标签 ===== */
.status{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500}
.status::before{content:"";width:7px;height:7px;border-radius:50%}
.s-ok{color:var(--ok)}.s-ok::before{background:var(--ok)}
.s-wn{color:var(--warn)}.s-wn::before{background:var(--warn)}
.s-bd{color:var(--bad)}.s-bd::before{background:var(--bad)}
.s-off{color:var(--muted)}.s-off::before{background:var(--muted)}
.tag{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:2px 9px;border-radius:4px}
.tag.g{color:var(--ok);background:var(--ok-soft)}
.tag.r{color:var(--bad);background:var(--bad-soft)}
.tag.o{color:var(--warn);background:var(--warn-soft)}
.tag.b{color:var(--primary);background:var(--primary-soft)}
.tag.p{color:var(--info);background:var(--info-soft)}
.tag.gray{color:var(--sub);background:var(--line2)}
.chip{font-family:var(--mono);font-size:12px;color:var(--primary);border:1px solid var(--primary-soft);background:var(--primary-soft);padding:2px 8px;border-radius:4px;white-space:nowrap}

/* ===== 表单 ===== */
.field{margin-bottom:18px}
.field>label{display:block;font-size:13px;font-weight:500;margin-bottom:7px;color:var(--sub)}
.field>label .req{color:var(--bad);margin-left:3px}
.field .hint{font-size:12px;color:var(--muted);margin-top:6px}
.inp,select.inp,textarea.inp{width:100%;border:1px solid var(--line);border-radius:6px;padding:9px 12px;font-size:13px;font-family:var(--font);color:var(--ink);background:#fff;outline:none;transition:.15s}
.inp:focus,select.inp:focus,textarea.inp:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,93,255,.12)}
textarea.inp{resize:vertical;min-height:80px}
.inline{display:flex;gap:12px;flex-wrap:wrap}.inline>*{flex:1;min-width:180px}
.searchbox{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:6px;color:var(--muted);min-width:230px}
.searchbox input{border:0;outline:0;background:transparent;font-family:var(--font);font-size:13px;width:100%;color:var(--ink)}
.searchbox svg{width:15px;height:15px;stroke:currentColor;stroke-width:2;fill:none;flex-shrink:0}

/* 开关 */
.switch{position:relative;display:inline-block;width:42px;height:22px;cursor:pointer}
.switch input{display:none}
.switch .sl{position:absolute;inset:0;background:#c9cdd4;border-radius:22px;transition:.2s}
.switch .sl::before{content:"";position:absolute;width:18px;height:18px;left:2px;top:2px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked+.sl{background:var(--primary)}
.switch input:checked+.sl::before{transform:translateX(20px)}

/* 复选框 */
.ck{width:16px;height:16px;border:1px solid #c9cdd4;border-radius:4px;display:inline-grid;place-items:center;cursor:pointer;vertical-align:middle;background:#fff}
.ck.on{background:var(--primary);border-color:var(--primary)}
.ck.on::after{content:"";width:4px;height:8px;border:2px solid #fff;border-top:0;border-left:0;transform:rotate(45deg) translateY(-1px)}

/* ===== Tabs ===== */
.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tabs span{font-size:13px;color:var(--muted);padding:5px 12px;border-radius:6px;cursor:pointer}
.tabs span:hover{color:var(--primary)}
.tabs span.act{color:var(--primary);background:var(--primary-soft);font-weight:600}

/* ===== 进度条 / 质量条 ===== */
.track{height:6px;background:#eef0f4;border-radius:6px;overflow:hidden}
.track i{display:block;height:100%;border-radius:6px}

/* ISP 徽标 */
.isp{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0}
.isp.t{background:#165dff}.isp.u{background:#00b42a}.isp.m{background:#ff7d00}.isp.o{background:#722ed1}

/* 节点行 */
.pr{display:flex;align-items:center;gap:12px;padding:13px 20px;border-bottom:1px solid var(--line)}
.pr:last-child{border-bottom:0}
.pr .info{flex:1;min-width:0}.pr .info b{font-size:13px}.pr .info small{display:block;color:var(--muted);font-size:12px}
.pr .lat{width:60px;text-align:right;font-weight:600;font-size:13px;font-variant-numeric:tabular-nums}

/* ===== 分页 ===== */
.pager{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;flex-wrap:wrap;gap:10px}
.pager .total{color:var(--muted);font-size:13px}
.pages{display:flex;gap:6px}
.pages a{min-width:32px;height:32px;padding:0 8px;border:1px solid var(--line);border-radius:6px;display:grid;place-items:center;font-size:13px;color:var(--sub);cursor:pointer}
.pages a:hover{color:var(--primary);border-color:var(--primary)}
.pages a.on{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ===== 空状态 ===== */
.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.empty svg{width:48px;height:48px;stroke:#c9cdd4;stroke-width:1.5;fill:none;margin-bottom:12px}

/* ===== 告警条 ===== */
.alert{display:flex;gap:10px;align-items:flex-start;padding:12px 16px;border-radius:8px;font-size:13px;margin-bottom:16px}
.alert svg{width:18px;height:18px;flex-shrink:0;stroke-width:2;fill:none;margin-top:1px}
.alert.warn{background:var(--warn-soft);color:#b45309}.alert.warn svg{stroke:var(--warn)}
.alert.bad{background:var(--bad-soft);color:#b91c1c}.alert.bad svg{stroke:var(--bad)}
.alert.info{background:var(--primary-soft);color:#1e40af}.alert.info svg{stroke:var(--primary)}

/* ===== 描述列表 ===== */
.dl{display:grid;grid-template-columns:120px 1fr;gap:0}
.dl dt{color:var(--muted);font-size:13px;padding:10px 0;border-bottom:1px solid var(--line2)}
.dl dd{font-size:13px;padding:10px 0;border-bottom:1px solid var(--line2);font-weight:500}

/* 工具 */
.row-flex{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.muted{color:var(--muted)}
.mt0{margin-top:0}.mb0{margin-bottom:0}

/* ===== 弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:flex-start;justify-content:center;z-index:100;padding:60px 16px;overflow:auto}
.modal-mask.on{display:flex}
.modal{background:#fff;border-radius:12px;width:100%;max-width:560px;box-shadow:var(--shadow-lg);animation:pop .18s ease}
.modal.wide{max-width:860px}
@keyframes pop{from{transform:translateY(-8px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal .mh{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal .mh h3{font-size:16px;font-weight:600}
.modal .mh .x{width:30px;height:30px;border-radius:7px;display:grid;place-items:center;cursor:pointer;color:var(--muted);font-size:20px}
.modal .mh .x:hover{background:var(--bg)}
.modal .mb{padding:22px}
.modal .mf{display:flex;justify-content:flex-end;gap:10px;padding:16px 22px;border-top:1px solid var(--line)}

@keyframes tin{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

@media(max-width:1080px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid2{grid-template-columns:1fr}
}
@media(max-width:720px){
  .app{grid-template-columns:0 1fr}
  aside.sidebar{position:fixed;left:0;top:56px;bottom:0;width:220px;z-index:20;transform:translateX(-100%)}
  .cards{grid-template-columns:1fr}
}

/* ---------- 探测节点：国旗卡片布局 ---------- */
.sec-title{display:flex;align-items:center;gap:10px;margin:22px 2px 14px}
.sec-title:first-child{margin-top:4px}
.sec-title h3{font-size:15px;font-weight:600;color:var(--ink)}
.sec-title .cnt{font-size:12px;color:var(--muted);background:var(--line2);padding:2px 9px;border-radius:20px;font-variant-numeric:tabular-nums}
.sec-title .ln{flex:1;height:1px;background:var(--line)}
.ncards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.ncard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.ncard:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#d5dae2}
.ncard.add{border-style:dashed;box-shadow:none;display:flex;align-items:center;justify-content:center;min-height:150px;cursor:pointer;color:var(--muted);gap:8px;font-size:14px}
.ncard.add:hover{color:var(--primary);border-color:var(--primary)}
.ncard.add svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none}
.ncard-top{display:flex;align-items:flex-start;gap:12px}
.ncard-flag{width:46px;height:34px;border-radius:7px;overflow:hidden;flex-shrink:0;display:grid;place-items:center;background:#eef0f4;border:1px solid rgba(0,0,0,.08);box-shadow:0 2px 6px rgba(0,0,0,.12)}
.ncard-flag img{width:100%;height:100%;object-fit:cover;display:block}
.ncard-flag.un svg{width:20px;height:20px;stroke:var(--muted);stroke-width:1.6;fill:none}
.ncard-id{flex:1;min-width:0}
.ncard-id .nm{font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ncard-id .sub{font-size:12px;color:var(--muted);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ncard-st{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 9px;border-radius:20px;flex-shrink:0}
.ncard-st .d{width:7px;height:7px;border-radius:50%}
.ncard-st.on{color:var(--ok);background:var(--ok-soft)}
.ncard-st.on .d{background:var(--ok);box-shadow:0 0 0 3px rgba(0,180,42,.15)}
.ncard-st.off{color:var(--muted);background:var(--line2)}
.ncard-st.off .d{background:var(--muted)}
.ncard-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.ncard-metrics .m{background:var(--bg);border-radius:8px;padding:9px 10px;text-align:center}
.ncard-metrics .m .v{font-size:16px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.ncard-metrics .m .v.ok{color:var(--ok)} .ncard-metrics .m .v.warn{color:var(--warn)} .ncard-metrics .m .v.bad{color:var(--bad)}
.ncard-metrics .m .k{font-size:11px;color:var(--muted);margin-top:3px}
.ncard-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--line2);font-size:12px;color:var(--muted)}
.ncard-foot a{color:var(--primary);text-decoration:none;font-weight:500}