:root {
  --bg: #f5f6f8;
  --bg-grad: radial-gradient(1200px 500px at 50% -180px, rgba(79, 70, 229, .10), transparent 70%);
  --card: #ffffff;
  --card-2: #fafbfc;
  --line: #e7e9ee;
  --line-2: #eef0f3;
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;
  --faint: #94a3b8;
  --accent: #4f46e5;
  --accent-2: #6366f1;
  --accent-soft: rgba(79, 70, 229, .08);
  --good: #16a34a; --good-soft: rgba(22, 163, 74, .09);
  --warn: #d97706; --warn-soft: rgba(217, 119, 6, .10);
  --bad: #dc2626;  --bad-soft: rgba(220, 38, 38, .08);
  --info: #2563eb; --info-soft: rgba(37, 99, 235, .08);
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 4px 16px rgba(15, 23, 42, .04);
  --radius: 16px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --bg-grad: radial-gradient(1200px 500px at 50% -180px, rgba(99, 102, 241, .16), transparent 70%);
    --card: #111113; --card-2: #151518; --line: #222227; --line-2: #1b1b1f;
    --text: #f4f4f5; --text-2: #d4d4d8; --muted: #a1a1aa; --faint: #71717a;
    --accent: #818cf8; --accent-2: #a5b4fc; --accent-soft: rgba(129, 140, 248, .12);
    --good: #4ade80; --good-soft: rgba(74, 222, 128, .10);
    --warn: #fbbf24; --warn-soft: rgba(251, 191, 36, .10);
    --bad: #f87171;  --bad-soft: rgba(248, 113, 113, .10);
    --info: #60a5fa; --info-soft: rgba(96, 165, 250, .10);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; background: var(--bg) var(--bg-grad) no-repeat; color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.hidden { display: none !important; }
.ic { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.mono { font-family: var(--mono); }

/* ---------- 顶栏 ---------- */
.topbar { position: sticky; top: 0; z-index: 10; backdrop-filter: saturate(180%) blur(12px); background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid var(--line-2); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.logo b { color: var(--accent); font-weight: 700; }
.logo-mark { width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, var(--accent), #8b5cf6); display: grid; place-items: center; box-shadow: 0 4px 12px rgba(79, 70, 229, .3); }
.logo-mark i { width: 12px; height: 12px; border: 2.5px solid #fff; border-radius: 50%; position: relative; }
.logo-mark i::after { content: ""; position: absolute; inset: 2px; background: #fff; border-radius: 50%; }
.seg { position: relative; display: flex; background: var(--line-2); border: 1px solid var(--line); border-radius: 10px; padding: 3px; }
.seg-btn { position: relative; z-index: 1; border: 0; background: none; padding: 6px 16px; font-size: 14px; color: var(--muted); cursor: pointer; border-radius: 7px; transition: color .2s; }
.seg-btn.active { color: var(--text); font-weight: 600; }
.seg-glider { position: absolute; top: 3px; bottom: 3px; left: 3px; border-radius: 7px; background: var(--card); box-shadow: var(--shadow); transition: transform .25s cubic-bezier(.4, 0, .2, 1), width .25s; }

main.wrap { padding-top: 28px; padding-bottom: 40px; }

/* ---------- 卡片 / 按钮 ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.btn { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--card); padding: 10px 18px; border-radius: 10px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all .15s; white-space: nowrap; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 2px 8px rgba(79, 70, 229, .25); }
.btn-primary:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: default; }
.btn .ic { width: 16px; height: 16px; }

/* ---------- Hero ---------- */
.hero { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 28px 32px; }
.eyebrow { font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.hero-ip { font: 700 clamp(26px, 5vw, 40px)/1.2 var(--mono); letter-spacing: -.02em; margin: 6px 0 6px; word-break: break-all; }
.hero-sub { color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; }
.hero-sub .sep { width: 3px; height: 3px; border-radius: 50%; background: var(--faint); }
.skeleton { color: transparent !important; background: linear-gradient(90deg, var(--line-2), var(--line), var(--line-2)); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: 8px; width: fit-content; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- 进度 ---------- */
.progress { margin-top: 16px; padding: 20px 24px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.step { display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--muted); }
.step .bar { height: 4px; border-radius: 2px; background: var(--line-2); overflow: hidden; position: relative; }
.step .bar::after { content: ""; position: absolute; inset: 0; width: 0; background: var(--accent); border-radius: 2px; transition: width .4s; }
.step.run .bar::after { width: 40%; animation: run 1.1s ease-in-out infinite; }
.step.done .bar::after { width: 100%; animation: none; background: var(--good); }
.step.done { color: var(--text-2); }
@keyframes run { 0% { transform: translateX(-100%); } 100% { transform: translateX(260%); } }

/* ---------- 搜索 ---------- */
.search { padding: 8px; }
.search-row { display: flex; align-items: center; gap: 10px; padding: 4px 4px 4px 14px; }
.search-ic { color: var(--faint); width: 20px; height: 20px; }
.search-row input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; color: var(--text); font: 500 18px var(--mono); padding: 10px 0; }
.search-row input::placeholder { color: var(--faint); font-family: inherit; font-weight: 400; font-size: 16px; }
.search-foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; border-top: 1px solid var(--line-2); padding: 10px 14px 6px; font-size: 13px; color: var(--muted); }
.examples { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.chip { border: 1px solid var(--line); background: var(--card-2); border-radius: 999px; padding: 2px 10px; font: 12px var(--mono); color: var(--text-2); cursor: pointer; }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.switch input { display: none; }
.switch .track { width: 32px; height: 18px; border-radius: 9px; background: var(--line); position: relative; transition: background .2s; }
.switch .thumb { position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.2); transition: transform .2s; }
.switch input:checked + .track { background: var(--accent); }
.switch input:checked + .track .thumb { transform: translateX(14px); }
.note { color: var(--muted); font-size: 13px; margin: 12px 4px 0; }

/* ---------- 结果总览 ---------- */
.result { margin-top: 16px; display: flex; flex-direction: column; gap: 16px; animation: rise .4s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
.overview { display: grid; grid-template-columns: 220px 1fr; gap: 0; overflow: hidden; }
.gauge-box { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 28px 20px; border-right: 1px solid var(--line-2); background: var(--card-2); }
.gauge { position: relative; width: 150px; height: 150px; }
.gauge svg { transform: rotate(-90deg); }
.gauge .track { stroke: var(--line); }
.gauge .val { transition: stroke-dashoffset 1s cubic-bezier(.4, 0, .2, 1); }
.gauge-num { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.gauge-num b { font-size: 44px; font-weight: 800; line-height: 1; letter-spacing: -.03em; }
.gauge-num span { font-size: 12px; color: var(--muted); margin-top: 4px; }
.gauge-label { margin-top: 12px; font-size: 13px; font-weight: 600; padding: 3px 12px; border-radius: 999px; }

.ov-main { padding: 26px 30px; display: flex; flex-direction: column; gap: 18px; }
.verdict-line { font-size: 19px; font-weight: 600; line-height: 1.5; letter-spacing: -.01em; }
.verdict-line em { font-style: normal; color: var(--accent); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); border-radius: 12px; overflow: hidden; }
.stat { background: var(--card); padding: 12px 14px; min-width: 0; }
.stat-k { font-size: 12px; color: var(--muted); }
.stat-v { font-weight: 600; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.conf-bar { height: 4px; background: var(--line-2); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.conf-bar i { display: block; height: 100%; background: var(--accent); border-radius: 2px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; padding: 4px 10px; border-radius: 8px; }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.b-good { color: var(--good); background: var(--good-soft); }
.b-warn { color: var(--warn); background: var(--warn-soft); }
.b-bad { color: var(--bad); background: var(--bad-soft); }
.b-info { color: var(--info); background: var(--info-soft); }
.b-mute { color: var(--muted); background: var(--line-2); }

/* ---------- 证据 ---------- */
.panel { padding: 22px 24px; }
.panel-h { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.panel-h h2 { margin: 0; font-size: 15px; font-weight: 650; }
.panel-h .count { font-size: 12px; color: var(--muted); }
.ev-group + .ev-group { margin-top: 18px; }
.ev-gh { font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .04em; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.ev-gh::after { content: ""; flex: 1; height: 1px; background: var(--line-2); }
.ev { display: flex; gap: 12px; padding: 10px 2px; }
.ev + .ev { border-top: 1px dashed var(--line-2); }
.ev-ic { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; flex: none; margin-top: 1px; }
.ev-ic .ic { width: 15px; height: 15px; stroke-width: 2.4; }
.ev.good .ev-ic { color: var(--good); background: var(--good-soft); }
.ev.warn .ev-ic { color: var(--warn); background: var(--warn-soft); }
.ev.bad .ev-ic { color: var(--bad); background: var(--bad-soft); }
.ev.info .ev-ic { color: var(--info); background: var(--info-soft); }
.ev-t { font-weight: 600; font-size: 14.5px; }
.ev-d { color: var(--muted); font-size: 13px; margin-top: 2px; white-space: pre-wrap; word-break: break-word; }

/* ---------- 详情网格 ---------- */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.kv { display: grid; grid-template-columns: 110px 1fr; gap: 0; font-size: 14px; }
.kv > div { padding: 8px 0; border-bottom: 1px solid var(--line-2); min-width: 0; word-break: break-word; }
.kv > div:nth-last-child(-n+2) { border-bottom: 0; }
.kv .k { color: var(--muted); }
.kv .v { color: var(--text-2); }
.kv .v.mono { font-size: 13px; }
.warn-dot { color: var(--warn); }

.meters { display: flex; flex-direction: column; gap: 10px; }
.meter { display: grid; grid-template-columns: 80px 1fr 40px; gap: 10px; align-items: center; font-size: 13px; }
.meter .name { color: var(--text-2); }
.meter .tr { height: 8px; background: var(--line-2); border-radius: 4px; overflow: hidden; }
.meter .tr i { display: block; height: 100%; border-radius: 4px; transition: width .8s cubic-bezier(.4, 0, .2, 1); }
.meter .pct { text-align: right; color: var(--muted); font-family: var(--mono); font-size: 12px; }
.meter-sep { height: 1px; background: var(--line-2); margin: 6px 0; }

.ports { display: flex; flex-wrap: wrap; gap: 6px; }
.port { font: 12px var(--mono); padding: 3px 8px; border-radius: 6px; border: 1px solid var(--line); color: var(--muted); }
.port.open { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 35%, transparent); background: var(--bad-soft); }
.port.open.cpe { color: var(--good); border-color: color-mix(in srgb, var(--good) 35%, transparent); background: var(--good-soft); }
.port.closed { color: var(--text-2); }

details.raw { padding: 0; }
details.raw summary { padding: 14px 24px; cursor: pointer; color: var(--muted); font-size: 13px; list-style: none; display: flex; align-items: center; gap: 8px; }
details.raw summary::before { content: "›"; font-size: 18px; transition: transform .2s; }
details.raw[open] summary::before { transform: rotate(90deg); }
details.raw pre { margin: 0; padding: 16px 24px; border-top: 1px solid var(--line-2); font: 12px/1.5 var(--mono); max-height: 460px; overflow: auto; color: var(--text-2); background: var(--card-2); border-radius: 0 0 var(--radius) var(--radius); }

.error { margin-top: 16px; padding: 14px 18px; border-radius: 12px; color: var(--bad); background: var(--bad-soft); border: 1px solid color-mix(in srgb, var(--bad) 25%, transparent); font-size: 14px; }

.footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; color: var(--faint); font-size: 12px; padding-top: 20px; padding-bottom: 32px; border-top: 1px solid var(--line-2); }

@media (max-width: 820px) {
  .overview { grid-template-columns: 1fr; }
  .gauge-box { border-right: 0; border-bottom: 1px solid var(--line-2); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: 1fr; }
  .hero { flex-direction: column; align-items: flex-start; padding: 22px; }
  .progress { grid-template-columns: 1fr; }
  .ov-main { padding: 20px; }
}