/* ============================================================
   天蓬数科 · 网络探测与可观测性平台 — 品牌设计系统
   主色：品牌蓝 #0F4693 系（交互态提亮为 #3b7bff）
   点缀：品牌橙 #F29B0E 系（#F7A21B）
   风格：深色科技 · 克制精致 · 商业级
   ============================================================ */
:root {
  --bg: #070b13;
  --bg-elev: #0b111e;
  --card: #0e1729;
  --card-2: #0c1424;
  --panel: #091020;
  --border: rgba(125, 160, 215, 0.10);
  --border-strong: rgba(125, 160, 215, 0.22);
  --fg: #eef3fc;
  --fg-muted: #9aabc8;
  --fg-dim: #61728e;
  --brand: #3b7bff;
  --brand-2: #5a93ff;
  --brand-deep: #0F4693;
  --accent: #F7A21B;
  --accent-2: #ffbf4d;
  --accent-soft: rgba(247, 162, 27, 0.14);
  --brand-soft: rgba(59, 123, 255, 0.12);
  --brand-glow: rgba(59, 123, 255, 0.38);
  --ok: #2dd4a7;
  --warn: #f5b53d;
  --fail: #ff6b6b;
  --radius: 16px;
  --radius-sm: 11px;
  --shadow: 0 10px 34px rgba(0, 0, 0, 0.40);
  --shadow-glow: 0 0 0 1px rgba(59, 123, 255, 0.28), 0 14px 44px rgba(59, 123, 255, 0.14);
  --mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(59, 123, 255, 0.10), transparent 60%),
    radial-gradient(900px 520px at -5% 4%, rgba(15, 70, 147, 0.16), transparent 55%),
    radial-gradient(700px 420px at 50% 120%, rgba(247, 162, 27, 0.05), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--fg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 15px;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }

/* ===================== 顶栏 ===================== */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 22px;
  padding: 0 26px; height: 64px;
  background: rgba(7, 11, 19, 0.72);
  backdrop-filter: saturate(170%) blur(16px);
  -webkit-backdrop-filter: saturate(170%) blur(16px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: 0.2px; }
.logo .mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  box-shadow: 0 0 18px var(--brand-glow);
  color: #ffffff;
}
.logo .mark svg { width: 20px; height: 20px; }
.logo > span:nth-child(2) { font-size: 17px; }
.logo .sub { font-size: 12px; color: var(--fg-dim); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; }
.logo .brand-logo { height: 30px; width: auto; display: block; filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.45)); }
.logo .brand-tag { font-size: 12.5px; color: var(--fg-dim); font-weight: 600; letter-spacing: 1px; white-space: nowrap; }

.nav { display: flex; align-items: center; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: thin; }
.nav a {
  position: relative;
  padding: 8px 13px; border-radius: 9px; font-size: 14px; color: var(--fg-muted);
  white-space: nowrap; transition: color .16s ease, background .16s ease;
}
.nav a:hover { color: var(--fg); background: var(--brand-soft); }
.nav a.active { color: var(--brand-2); background: var(--brand-soft); }
.nav a.home-link { color: var(--fg); font-weight: 600; }

.status-pill {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 13px; border-radius: 999px; font-size: 13px;
  color: var(--fg-muted); border: 1px solid var(--border); background: var(--card-2);
  white-space: nowrap;
}
.status-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }

/* ===================== 视图容器 ===================== */
.view { max-width: 1180px; margin: 0 auto; padding: 40px 26px 64px; }
.empty { color: var(--fg-dim); padding: 40px; text-align: center; }

/* ===================== Hero ===================== */
.hero { position: relative; padding: 30px 0 44px; }
.hero::before {
  content: ""; position: absolute; inset: -10px -26px auto; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.5px; color: var(--brand-2);
  padding: 6px 14px; border: 1px solid var(--border-strong); border-radius: 999px;
  background: var(--brand-soft); margin-bottom: 22px;
}
.hero .eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.hero h1 {
  font-size: clamp(30px, 4.6vw, 50px); line-height: 1.14; margin-bottom: 18px; font-weight: 800;
}
.hero .grad {
  background: linear-gradient(100deg, #5a93ff, var(--brand) 45%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--fg-muted); font-size: 16.5px; max-width: 740px; margin: 0 0 28px; line-height: 1.75; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  font-size: 13px; color: var(--fg-muted); padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--card-2);
}

/* 快捷探测栏 */
.quick {
  margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; align-items: stretch;
  padding: 14px; border-radius: var(--radius); border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--card), var(--panel));
  box-shadow: var(--shadow);
}
.quick .q-input {
  flex: 1 1 280px; min-width: 220px; padding: 14px 17px; font-size: 15px;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--fg); outline: none; transition: border-color .16s, box-shadow .16s;
}
.quick .q-input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.quick .q-select {
  padding: 14px 15px; font-size: 14px; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--fg); outline: none; cursor: pointer;
}
.quick .q-btn {
  padding: 14px 26px; font-size: 15px; font-weight: 700; color: #1a1205; cursor: pointer;
  border: none; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 6px 18px rgba(247, 162, 27, 0.30); transition: transform .12s, box-shadow .12s;
}
.quick .q-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 26px rgba(247, 162, 27, 0.42); }
.quick .q-btn:active { transform: translateY(0); }

/* ===================== 区块标题 ===================== */
.section-title { display: flex; align-items: center; gap: 14px; margin: 52px 0 22px; }
.section-title h2 { font-size: 22px; display: flex; align-items: center; gap: 12px; }
.section-title h2::before {
  content: ""; width: 4px; height: 20px; border-radius: 3px;
  background: linear-gradient(180deg, var(--brand), var(--accent));
}
.section-title .line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--border-strong), transparent); }
.section-title .hint { font-size: 13px; color: var(--fg-dim); padding: 4px 11px; border: 1px solid var(--border); border-radius: 999px; }

/* ===================== 工具卡片网格 ===================== */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.card {
  display: flex; flex-direction: column; gap: 11px; padding: 22px;
  border-radius: var(--radius); border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--card), var(--card-2));
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  opacity: 0; transition: opacity .2s ease;
}
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(420px 220px at 0% 0%, var(--brand-soft), transparent 60%);
  opacity: 0; transition: opacity .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--brand); box-shadow: var(--shadow-glow); }
.card:hover::before, .card:hover::after { opacity: 1; }
.card .ic {
  width: 48px; height: 48px; display: grid; place-items: center; border-radius: 13px;
  background: var(--brand-soft); color: var(--brand-2); border: 1px solid var(--border);
}
.card .ic svg { width: 25px; height: 25px; }
.card h3 { font-size: 16.5px; }
.card p { font-size: 13.5px; color: var(--fg-muted); margin: 0; flex: 1; line-height: 1.6; }
.card .go { font-size: 13px; color: var(--brand-2); font-weight: 600; }

/* ===================== 面板 / 地图 ===================== */
.panel {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), var(--panel));
  padding: 20px; margin-top: 16px; box-shadow: var(--shadow);
}
.map-wrap { width: 100%; height: 460px; }
#map { width: 100%; height: 420px; }

/* ===================== 特性条 ===================== */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(224px, 1fr)); gap: 14px; margin-top: 18px; }
.feat { display: flex; gap: 14px; padding: 18px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--card-2); transition: border-color .16s, transform .16s; }
.feat:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.feat .fi {
  color: var(--brand-2); flex-shrink: 0; width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 12px; background: var(--brand-soft); border: 1px solid var(--border);
}
.feat .fi svg { width: 22px; height: 22px; }
.feat h4 { margin: 0 0 5px; font-size: 15px; }
.feat p { margin: 0; font-size: 13px; color: var(--fg-muted); line-height: 1.6; }

/* ===================== 工具页 ===================== */
.tool-head { margin-bottom: 20px; }
.tool-head h1 { font-size: 27px; display: flex; align-items: center; gap: 13px; }
.tool-head .ic { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--brand-soft); color: var(--brand-2); border: 1px solid var(--border); }
.tool-head .ic svg { width: 23px; height: 23px; }
.tool-head p { color: var(--fg-muted); margin: 9px 0 0; line-height: 1.7; font-size: 15px; }

.form-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.grow { flex: 1 1 300px; }
.field label { font-size: 12.5px; color: var(--fg-muted); }
.field input, .field select {
  padding: 12px 14px; font-size: 14.5px; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--fg); outline: none;
  transition: border-color .16s, box-shadow .16s; min-width: 120px;
}
.field input:focus, .field select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.btn {
  padding: 12px 24px; font-size: 14.5px; font-weight: 700; color: #ffffff; cursor: pointer; border: none;
  border-radius: var(--radius-sm); background: linear-gradient(135deg, var(--brand-2), var(--brand));
  box-shadow: 0 6px 18px var(--brand-glow); transition: transform .12s, box-shadow .12s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 26px var(--brand-glow); }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }

.nodes-select { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.node-chip {
  font-size: 13px; padding: 7px 15px; border-radius: 999px; cursor: pointer; user-select: none;
  border: 1px solid var(--border); color: var(--fg-muted); background: var(--card-2); transition: all .14s;
}
.node-chip:hover { color: var(--fg); border-color: var(--border-strong); }
.node-chip.on { color: #ffffff; background: linear-gradient(135deg, var(--brand-2), var(--brand)); border-color: transparent; font-weight: 600; }

.progress { height: 4px; margin-top: 16px; background: var(--border); border-radius: 999px; overflow: hidden; }
.progress i { display: block; height: 100%; width: 40%; border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--accent)); animation: slide 1.1s infinite ease-in-out; }
@keyframes slide { 0% { margin-left: -40%; } 100% { margin-left: 100%; } }

/* 统计卡片 */
.stat-cards { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.stat-card { flex: 1 1 130px; padding: 15px 17px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--card-2); }
.stat-card .lbl { font-size: 12.5px; color: var(--fg-muted); }
.stat-card .val { font-size: 26px; font-weight: 800; margin-top: 5px; color: var(--fg); font-variant-numeric: tabular-nums; }
.stat-card .val small { font-size: 13px; color: var(--fg-dim); font-weight: 600; margin-left: 3px; }
.stat-card .val.ok { color: var(--ok); }
.stat-card .val.warn { color: var(--warn); }
.stat-card .val.err { color: var(--fail); }

/* 探测中占位：避免浅色主题下 .map-wrap 460px 高占位产生的大块空白 */
#resultPanel.pending { min-height: 200px; padding: 36px 20px; text-align: center; }
#resultPanel.pending > * { display: none !important; }
#resultPanel.pending::before {
  content: '正在等待节点回传数据…';
  display: inline-block;
  color: var(--fg-muted);
  font-size: 14px;
  opacity: 0.7;
}

.chart-wrap { width: 100%; height: 300px; margin-top: 8px; }
.result-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--fg-muted); margin: 14px 0 6px; }
.result-meta b { color: var(--fg); }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 6px; }
.tbl th, .tbl td { text-align: left; padding: 13px 15px; border-bottom: 1px solid var(--border); }
.tbl th { font-size: 12.5px; color: var(--fg-dim); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.tbl tbody tr { transition: background .14s; }
.tbl tbody tr:hover { background: var(--card-2); }
.tbl .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.row-enter { animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.badge { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.badge.ok { color: var(--ok); background: rgba(45, 212, 167, 0.14); }
.badge.warn { color: var(--warn); background: rgba(245, 181, 61, 0.14); }
.badge.fail { color: var(--fail); background: rgba(255, 107, 107, 0.14); }

/* 键值 / 详情块 */
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 1px; background: var(--border); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 12px; }
.kv .k { background: var(--panel); color: var(--fg-muted); padding: 11px 15px; font-size: 13px; }
.kv .v { background: var(--panel); padding: 11px 15px; font-size: 14px; word-break: break-all; }
.kv .v.err { color: var(--fail); }
.kv .v.ok { color: var(--ok); }
.kv .v.warn { color: var(--warn); }
.detail-box {
  font-family: var(--mono); font-size: 13px; line-height: 1.7; white-space: pre-wrap; word-break: break-all;
  background: #05080f; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 15px 17px; color: #b9c6dc; max-height: 360px; overflow: auto;
}

/* 紧凑卡片 / 监控列表 */
.card.compact { padding: 17px 19px; }
.card.compact h3 { font-size: 16px; margin-bottom: 4px; }
.card.compact p { font-size: 13px; color: var(--fg-muted); margin: 4px 0; }
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn.sm { padding: 7px 15px; font-size: 13px; }
.btn.danger { background: linear-gradient(135deg, var(--fail), #c0392b); box-shadow: 0 6px 18px rgba(255, 107, 107, .25); }
.btn.danger:hover { box-shadow: 0 10px 26px rgba(255, 107, 107, .35); }

/* ===================== 页脚 ===================== */
.footer {
  max-width: 1180px; margin: 48px auto 0; padding: 28px 26px; border-top: 1px solid var(--border);
  color: var(--fg-dim); font-size: 13px; text-align: center; line-height: 1.7;
}
.footer .f-brand { color: var(--fg-muted); font-weight: 600; }

/* ===================== SEO 综合查询报告 ===================== */
.seo-section { margin-top: 28px; }
.seo-section .kv { margin-bottom: 0; }
.seo-recs { display: flex; flex-direction: column; gap: 10px; }
.rec-item {
  padding: 13px 16px; border-radius: var(--radius-sm); font-size: 14px; line-height: 1.65;
  border: 1px solid rgba(245, 181, 61, 0.28); background: rgba(245, 181, 61, 0.07); color: #f3d99a;
}
.rec-item.ok {
  border-color: rgba(45, 212, 167, 0.28); background: rgba(45, 212, 167, 0.07); color: #9fe7c6;
}

/* ===================== 响应式 ===================== */
@media (max-width: 720px) {
  .topbar { gap: 12px; padding: 0 14px; }
  .logo .sub { display: none; }
  .logo .brand-tag { display: none; }
  .view { padding: 26px 14px 52px; }
  .nav { gap: 2px; }
  .nav a { padding: 7px 10px; font-size: 13px; }
  .status-pill { display: none; }
  .hero h1 { font-size: 28px; }
  .map-wrap, #map { height: 340px; }
  .kv { grid-template-columns: 96px 1fr; }
}

/* ===================== 浅色主题 ===================== */
/* 由顶栏切换按钮设置 <html data-theme="light"> 启用 */
[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-elev: #ffffff;
  --card: #ffffff;
  --card-2: #f5f8fd;
  --panel: #ffffff;
  --border: rgba(15, 70, 147, 0.12);
  --border-strong: rgba(15, 70, 147, 0.22);
  --fg: #0f1d33;
  --fg-muted: #465872;
  --fg-dim: #8492a8;
  --brand: #0F4693;
  --brand-2: #2563d6;
  --brand-deep: #0F4693;
  --accent: #E8820C;
  --accent-2: #f59e2c;
  --accent-soft: rgba(232, 130, 12, 0.12);
  --brand-soft: rgba(15, 70, 147, 0.09);
  --brand-glow: rgba(37, 99, 214, 0.26);
  --ok: #15936a;
  --warn: #c77a00;
  --fail: #d6403a;
  --shadow: 0 10px 30px rgba(20, 40, 80, 0.10);
  --shadow-glow: 0 0 0 1px rgba(37, 99, 214, 0.18), 0 14px 40px rgba(37, 99, 214, 0.14);
}
[data-theme="light"] body {
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(37, 99, 214, 0.07), transparent 60%),
    radial-gradient(900px 520px at -5% 4%, rgba(15, 70, 147, 0.06), transparent 55%),
    radial-gradient(700px 420px at 50% 120%, rgba(232, 130, 12, 0.045), transparent 60%),
    var(--bg);
}
[data-theme="light"] .topbar { background: rgba(255, 255, 255, 0.80); border-bottom-color: var(--border); }
[data-theme="light"] .detail-box { background: #eef2f8; border-color: var(--border); color: #34465f; }
[data-theme="light"] .seo-recs .rec-item { border-color: rgba(199, 122, 0, 0.28); background: rgba(232, 130, 12, 0.08); color: #8a5a12; }
[data-theme="light"] .seo-recs .rec-item.ok { border-color: rgba(21, 147, 106, 0.28); background: rgba(21, 147, 106, 0.08); color: #137a54; }
[data-theme="light"] .badge.ok { color: #137a54; background: rgba(21, 147, 106, 0.12); }
[data-theme="light"] .badge.warn { color: #a8660a; background: rgba(199, 122, 0, 0.12); }
[data-theme="light"] .badge.fail { color: #c2362f; background: rgba(214, 64, 58, 0.12); }
[data-theme="light"] .hero .grad {
  background: linear-gradient(100deg, #2563d6, var(--brand) 45%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* 备案信息小标题（与 SEO 报告共用区块） */
.seo-rec-h { font-size: 14px; font-weight: 700; color: var(--fg); margin-bottom: 12px; letter-spacing: 0.3px; }

/* 主题切换按钮 */
.theme-toggle {
  display: grid; place-items: center; width: 38px; height: 38px; flex-shrink: 0;
  border-radius: 10px; cursor: pointer; color: var(--fg-muted);
  border: 1px solid var(--border); background: var(--card-2);
  transition: color .16s, border-color .16s, background .16s, transform .12s;
}
.theme-toggle:hover { color: var(--brand-2); border-color: var(--border-strong); transform: translateY(-1px); }
.theme-toggle svg { width: 19px; height: 19px; }