/* ===== 基础变量：亮色 / 暗色 ===== */
:root {
  --bg: #f5f7fb; --card: #ffffff; --card2: #f3f5f9; --text: #0f172a; --muted: #64748b; --border: #e6eaf0;
  --primary: #2563eb; --primary-weak: #dbeafe; --ok: #16a34a; --warn: #d97706; --bad: #dc2626; --info: #7c3aed;
  --ok-bg: #dcfce7; --warn-bg: #fef3c7; --bad-bg: #fee2e2; --info-bg: #ede9fe;
  --shadow: 0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.05);
  --shadow-hover: 0 10px 28px rgba(37,99,235,.12);
  --radius: 14px; --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --glow: rgba(37,99,235,.10); --glow-2: rgba(14,165,233,.07);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0c111c; --card: #151b28; --card2: #101624; --text: #e8edf5; --muted: #94a3b8; --border: #273247;
  --primary: #60a5fa; --primary-weak: rgba(37,99,235,.28); --ok: #4ade80; --warn: #fbbf24; --bad: #f87171; --info: #a78bfa;
  --ok-bg: #052e16; --warn-bg: #3b2603; --bad-bg: #3f0d0d; --info-bg: #2e1065;
  --shadow: 0 1px 2px rgba(0,0,0,.35), 0 10px 28px rgba(0,0,0,.22);
  --shadow-hover: 0 12px 32px rgba(37,99,235,.22);
  --glow: rgba(37,99,235,.16); --glow-2: rgba(56,189,248,.08);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c111c; --card: #151b28; --card2: #101624; --text: #e8edf5; --muted: #94a3b8; --border: #273247;
    --primary: #60a5fa; --primary-weak: rgba(37,99,235,.28); --ok: #4ade80; --warn: #fbbf24; --bad: #f87171; --info: #a78bfa;
    --ok-bg: #052e16; --warn-bg: #3b2603; --bad-bg: #3f0d0d; --info-bg: #2e1065;
    --shadow: 0 1px 2px rgba(0,0,0,.35), 0 10px 28px rgba(0,0,0,.22);
    --shadow-hover: 0 12px 32px rgba(37,99,235,.22);
    --glow: rgba(37,99,235,.16); --glow-2: rgba(56,189,248,.08);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scrollbar-gutter: stable; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 420px at 12% -8%, var(--glow), transparent 62%),
    radial-gradient(720px 360px at 100% 0%, var(--glow-2), transparent 58%);
  background-attachment: fixed;
  color: var(--text); line-height: 1.65; font-size: 15px; font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
p a:hover, li a:hover, td a:hover, .lead a:hover, .footer a:hover, .notice a:hover, .verdict-meta a:hover {
  text-decoration: underline; text-underline-offset: 3px;
}
a.card, a.card:hover, a.tool-card, a.tool-card:hover,
.grid > a, .grid > a:hover, .recent-list a, .recent-list a:hover,
.brand, .brand:hover, .nav a, .nav a:hover { text-decoration: none; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
main.wrap { min-height: calc(100vh - 53px - 130px); }
#site-footer { min-height: 110px; }
code, .mono { font-family: var(--mono); }
h1 { font-size: 28px; margin: 22px 0 6px; letter-spacing: -.02em; font-weight: 720; line-height: 1.25; }
h2 { font-size: 18px; margin: 8px 0 12px; letter-spacing: -.015em; font-weight: 680; }
h3 { font-size: 15px; margin: 0 0 8px; font-weight: 650; }
.lead { color: var(--muted); margin: 0 0 18px; font-size: 15px; line-height: 1.65; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.ok { color: var(--ok); } .warn { color: var(--warn); } .bad { color: var(--bad); } .info { color: var(--info); }

/* ===== 顶部导航 ===== */
#site-nav { min-height: 53px; }
.topbar {
  background: color-mix(in srgb, var(--card) 82%, transparent);
  backdrop-filter: saturate(1.5) blur(16px); -webkit-backdrop-filter: saturate(1.5) blur(16px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; view-transition-name: ipc-topbar;
}
.topbar .wrap { max-width: 1280px; display: flex; align-items: center; gap: 14px; height: 52px; }
.brand { font-weight: 720; color: var(--text); white-space: nowrap; display: flex; align-items: center; gap: 8px; }
.brand:hover { text-decoration: none; color: var(--text); }
.brand-logo { width: 22px; height: 22px; }
.nav { display: flex; flex-wrap: nowrap; gap: 2px; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; flex: 1; min-width: 0;
  -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 24px), transparent); mask-image: linear-gradient(to right, #000 calc(100% - 24px), transparent); padding-right: 20px; }
.nav::-webkit-scrollbar { display: none; }
.nav a { color: var(--muted); padding: 6px 11px; border-radius: 999px; white-space: nowrap; font-size: 13.5px; transition: background-color .18s ease, color .18s ease; }
.nav a:hover { background: var(--card2); color: var(--text); text-decoration: none; }
.nav a.active { color: var(--primary); background: var(--primary-weak); font-weight: 600; }

body[data-page="block"] .nav a[data-nav="block"],
body[data-page="myip"] .nav a[data-nav="myip"],
body[data-page="split"] .nav a[data-nav="split"],
body[data-page="ipinfo"] .nav a[data-nav="ipinfo"],
body[data-page="ai"] .nav a[data-nav="ai"],
body[data-page="connectivity"] .nav a[data-nav="connectivity"],
body[data-page="dns"] .nav a[data-nav="dns"],
body[data-page="webrtc"] .nav a[data-nav="webrtc"],
body[data-page="cloudflare"] .nav a[data-nav="cloudflare"],
body[data-page="ping"] .nav a[data-nav="ping"],
body[data-page="status"] .nav a[data-nav="status"],
body[data-page="whois"] .nav a[data-nav="whois"],
body[data-page="card"] .nav a[data-nav="card"] { color: var(--primary); background: var(--primary-weak); font-weight: 600; }

:root[data-theme="dark"] .nav a.active { color: #dbeafe; }
.theme-btn { border: 1px solid var(--border); background: var(--card2); color: var(--text); border-radius: 8px; height: 32px; min-width: 32px;
  cursor: pointer; font-size: 15px; padding: 0 8px; transition: border-color .18s ease, background .18s ease; }
.theme-btn:hover { border-color: var(--primary); }

/* ===== 卡片与布局 ===== */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); margin-bottom: 16px; }
a.card { color: inherit; text-decoration: none; display: block; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
a.card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--primary); color: inherit; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-bottom: 16px; }
.grid > .card { margin-bottom: 0; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.kv { display: grid; grid-template-columns: 110px 1fr; gap: 6px 12px; font-size: 14px; }
.kv > div:nth-child(odd) { color: var(--muted); }
.big-ip { font-family: var(--mono); font-size: 22px; font-weight: 700; word-break: break-all; }
.label { color: var(--muted); font-size: 13px; margin-bottom: 2px; }

/* ===== 表单 ===== */
.search { display: flex; gap: 8px; margin-bottom: 14px; }
.search input, .input { flex: 1; min-width: 0; font-size: 16px; padding: 10px 14px; border: 1px solid var(--border); border-radius: 12px;
  background: var(--card); color: var(--text); outline: none; font-family: var(--mono); }
.search input:focus, .input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-weak); }
.search-shell { display: flex; align-items: stretch; gap: 6px; width: 100%; background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 6px; box-shadow: var(--shadow); }
.search-shell input { border: 0; box-shadow: none !important; background: transparent; padding: 10px 14px; border-radius: 10px; }
.search-shell .btn { border-radius: 10px; padding: 10px 18px; }
.btn { font-size: 15px; padding: 9px 18px; border: 0; border-radius: 12px; background: var(--primary); color: #fff; cursor: pointer; white-space: nowrap;
  font-weight: 600; font-family: inherit; transition: filter .15s ease, transform .15s ease; }
:root[data-theme="dark"] .btn { color: #0b1120; }
.btn:hover:not(:disabled) { filter: brightness(1.06); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.secondary { background: var(--card2); color: var(--text); border: 1px solid var(--border); }
select.input { font-family: inherit; flex: 0 0 auto; }
.chip { border: 1px solid var(--border); background: var(--card); color: var(--muted); border-radius: 999px; padding: 4px 12px; font-size: 13px; cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease; }
.chip:hover { border-color: var(--primary); color: var(--text); background: var(--card); }
.chip.on { background: var(--primary-weak); border-color: var(--primary); color: var(--primary); }
.switch { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font-size: 14px; color: var(--muted); user-select: none; }
.form-error { color: var(--bad); margin: 6px 0; }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; }
table.t th, table.t td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.t th { color: var(--muted); font-weight: 600; background: var(--card2); white-space: nowrap; font-size: 12.5px; }
table.t tbody tr:hover td { background: color-mix(in srgb, var(--primary-weak) 35%, transparent); }
table.t tr:last-child td { border-bottom: 0; }
table.t td.ip { font-family: var(--mono); word-break: break-all; }
.group-row td { background: var(--card2); font-weight: 600; color: var(--muted); font-size: 13px; }

/* ===== 标签 ===== */
.tag { display: inline-block; padding: 0 8px; border-radius: 999px; font-size: 12.5px; line-height: 20px; white-space: nowrap; border: 1px solid transparent; }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.bad { background: var(--bad-bg); color: var(--bad); }
.tag.info { background: var(--info-bg); color: var(--info); }
.tag.gray { background: var(--card2); color: var(--muted); border-color: var(--border); }
.flag { font-size: 1.1em; margin-right: 3px; }
.cc { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-right: 4px; }

/* ===== 提示 ===== */
.notice { border-radius: 10px; padding: 10px 14px; margin-bottom: 14px; font-size: 14px; border: 1px solid var(--border); background: var(--card2); }
.notice.ok { background: var(--ok-bg); border-color: transparent; }
.notice.warn { background: var(--warn-bg); border-color: transparent; }
.notice.bad { background: var(--bad-bg); border-color: transparent; }
.verdict-big { font-size: 18px; font-weight: 700; margin-bottom: 4px; }

/* ===== 加载动画 ===== */
.skeleton { display: inline-block; height: 1em; width: 120px; border-radius: 6px; vertical-align: middle;
  background: linear-gradient(90deg, var(--card2), var(--border), var(--card2)); background-size: 200% 100%; animation: sk 1.2s infinite; }
@keyframes sk { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--border); border-top-color: var(--primary);
  border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 延迟条 ===== */
.bars { display: inline-flex; gap: 2px; vertical-align: middle; }
.bars i { width: 6px; height: 14px; border-radius: 2px; background: var(--border); display: inline-block; }
.bars i.g { background: var(--ok); } .bars i.y { background: var(--warn); } .bars i.r { background: var(--bad); } .bars i.x { background: #9ca3af; opacity: .5; }
.ms { font-family: var(--mono); font-size: 13px; min-width: 56px; display: inline-block; text-align: right; }

/* ===== 分数环 ===== */
.score { display: flex; align-items: center; gap: 16px; }
.score-num { font-size: 40px; font-weight: 800; line-height: 1; }
.meter { height: 8px; background: var(--card2); border-radius: 999px; overflow: hidden; border: 1px solid var(--border); margin-top: 8px; }
.meter > span { display: block; height: 100%; border-radius: 999px; }

details.raw summary { cursor: pointer; color: var(--muted); font-size: 14px; }
details.raw pre { background: var(--card2); border: 1px solid var(--border); border-radius: 8px; padding: 10px; overflow: auto; max-height: 420px; font-size: 12px; }

/* ===== 页脚 ===== */
.footer { color: var(--muted); font-size: 12.5px; padding: 28px 16px 40px; text-align: center; line-height: 1.85; }
.footer a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.footer .brand-line { color: var(--text); font-weight: 700; margin-bottom: 6px; }

@media (max-width: 640px) {
  body { font-size: 14px; }
  h1 { font-size: 20px; }
  .brand-text { display: none; }
  .search:not(:has(.search-shell)) { flex-direction: column; }
  .kv { grid-template-columns: 90px 1fr; }
  .card { padding: 14px; }
  table.t th, table.t td { padding: 7px 6px; }
  .hide-sm { display: none; }
}

/* ===== 连通性测试页 ===== */
.hero { background: transparent; color: var(--text); padding: 28px 0 12px; margin: 0 0 8px; }
.hero h1 { margin: 0 0 8px; font-size: 32px; font-weight: 760; letter-spacing: -.03em; color: var(--text); line-height: 1.2; }
.hero .lead { color: var(--muted); font-size: 16px; margin: 0 0 20px; max-width: 40rem; }
.hero .search { margin-bottom: 12px; }
.hero .chip { font-family: var(--mono); background: var(--card); color: var(--muted); }
.hero .form-error { background: var(--bad-bg); color: var(--bad); border-radius: 10px; padding: 8px 12px; }
.hints { font-size: 13px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); }
.nodes-bar { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 4px; font-size: 13px; }
.node-pill { background: var(--card); border: 1px solid var(--border); border-radius: 999px; padding: 3px 12px; display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #9ca3af; display: inline-block; }
.dot.on { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-bg); }
.verdict { background: var(--card); border: 1px solid var(--border); border-left: 6px solid var(--primary); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px; }
.verdict-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.verdict h2 { margin: 0; font-size: 21px; }
.verdict-summary { margin: 8px 0 4px; }
.verdict-details { margin: 6px 0 0; padding-left: 20px; font-size: 14px; }
.verdict-meta { margin-top: 8px; font-size: 12px; color: var(--muted); }
.badge { font-size: 12px; padding: 2px 10px; border-radius: 999px; background: var(--info-bg); color: var(--info); font-weight: 600; }
.verdict .spinner { display: none; }
.verdict.pending .spinner { display: inline-block; }
.verdict.normal { border-left-color: var(--ok); background: var(--ok-bg); } .verdict.normal h2 { color: var(--ok); }
.verdict.blocked { border-left-color: var(--bad); background: var(--bad-bg); } .verdict.blocked h2 { color: var(--bad); }
.verdict.partial { border-left-color: var(--warn); background: var(--warn-bg); } .verdict.partial h2 { color: var(--warn); }
.verdict.overseas_blocked { border-left-color: var(--info); background: var(--info-bg); } .verdict.overseas_blocked h2 { color: var(--info); }
.verdict.down, .verdict.insufficient, .verdict.error { border-left-color: var(--muted); }
.region { font-size: 12px; padding: 1px 8px; border-radius: 6px; font-weight: 600; white-space: nowrap; }
.region.cn { background: var(--bad-bg); color: var(--bad); }
.region.global { background: var(--primary-weak); color: var(--primary); }
.tcp-item { white-space: nowrap; font-family: var(--mono); font-size: 13px; }
.status-cell { font-weight: 600; white-space: nowrap; }
.loading { color: var(--muted); }
.loading::after { content: "…"; animation: blink 1s steps(3) infinite; }
@keyframes blink { 50% { opacity: .3; } }
table.rules { border-collapse: collapse; margin: 12px 0; width: 100%; max-width: 560px; }
table.rules th, table.rules td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
@media (max-width: 720px) {
  table.nodes thead { display: none; }
  table.nodes, table.nodes tbody, table.nodes tr, table.nodes td { display: block; width: 100%; }
  table.nodes tr { border-bottom: 1px solid var(--border); padding: 8px 0; }
  table.nodes td { border: 0; padding: 3px 10px; display: flex; gap: 10px; }
  table.nodes td::before { content: attr(data-label); color: var(--muted); min-width: 72px; font-size: 12px; }
}
.mono { font-family: var(--mono); }
.notice.info { background: var(--info-bg); border-color: transparent; }
pre { background: var(--card2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin: 0 0 10px; overflow: auto; }
details > summary { cursor: pointer; color: var(--muted); }
.st-card h3 { margin: 0; }
.st-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; }
.speed-num { font-size: 28px; font-weight: 800; font-family: var(--mono); }
#list.grid { align-items: start; }

/* ===== 分段选择器（AI 服务、状态筛选、卡片样式） ===== */
.seg { display: flex; flex-wrap: wrap; width: 100%; box-sizing: border-box; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 4px; gap: 4px; margin: 0 0 16px; box-shadow: var(--shadow); }
.seg-btn { flex: 1 1 0; min-width: 120px; min-height: 44px; border: 0; background: transparent; color: var(--muted); border-radius: 10px; font-size: 15px; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 14px; font-family: inherit; transition: background-color .18s ease, color .18s ease, box-shadow .18s ease; }
.seg-btn:hover { color: var(--text); background: var(--card2); }
.seg-btn.on, .seg-btn[aria-selected="true"] { background: var(--primary); color: #fff; box-shadow: 0 1px 4px rgba(37,99,235,.28); }
:root[data-theme="dark"] .seg-btn.on, :root[data-theme="dark"] .seg-btn[aria-selected="true"] { color: #0b1120; }
.seg-lg .seg-btn { min-height: 48px; font-size: 17px; }
.seg-ico { width: 22px; height: 22px; border-radius: 6px; display: inline-block; background: currentColor; flex: 0 0 auto; }
.seg-ico-claude { -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M12 2l2.4 7.2H22l-6 4.4 2.3 7.2L12 16.4 5.7 20.8 8 13.6 2 9.2h7.6z'/></svg>") center/contain no-repeat; mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M12 2l2.4 7.2H22l-6 4.4 2.3 7.2L12 16.4 5.7 20.8 8 13.6 2 9.2h7.6z'/></svg>") center/contain no-repeat; }
.seg-ico-gpt { border-radius: 50%; -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><circle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2.4'/><path d='M12 5.5a6.5 6.5 0 0 1 4.6 11' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round'/></svg>") center/contain no-repeat; mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><circle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2.4'/><path d='M12 5.5a6.5 6.5 0 0 1 4.6 11' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round'/></svg>") center/contain no-repeat; }
.seg-btn[data-svc="claude"].on, .seg-btn[data-svc="claude"][aria-selected="true"] { background: #c96442; color: #fff; }
.seg-btn[data-svc="chatgpt"].on, .seg-btn[data-svc="chatgpt"][aria-selected="true"] { background: #10a37f; color: #fff; }
:root[data-theme="dark"] .seg-btn[data-svc="claude"].on,
:root[data-theme="dark"] .seg-btn[data-svc="claude"][aria-selected="true"] { background: #e08a68; color: #2a140c; }
:root[data-theme="dark"] .seg-btn[data-svc="chatgpt"].on,
:root[data-theme="dark"] .seg-btn[data-svc="chatgpt"][aria-selected="true"] { background: #3ecfaf; color: #06241c; }

/* ===== 跨文档页面切换（View Transitions） ===== */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: ipc-vt-out .18s ease both; }
::view-transition-new(root) { animation: ipc-vt-in .22s ease both; }
@keyframes ipc-vt-out { to { opacity: 0; transform: translateY(-6px); } }
@keyframes ipc-vt-in { from { opacity: 0; transform: translateY(8px); } }
::view-transition-old(ipc-topbar),
::view-transition-new(ipc-topbar) { animation: none; mix-blend-mode: normal; height: 100%; }

@media (prefers-reduced-motion: reduce) {
  @view-transition { navigation: none; }
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none !important; }
  .nav a, .seg-btn, a.card, .tool-card, .btn { transition: none; }
  a.card:hover, .tool-card:hover { transform: none; }
  .skeleton, .spinner { animation: none; }
}

@media (max-width: 640px) {
  .seg-lg { flex-direction: column; }
  .seg-lg .seg-btn { width: 100%; min-width: 0; min-height: 48px; font-size: 17px; }
}

.gauge-wrap { display:flex; gap:16px; align-items:center; flex-wrap:wrap; }
.tiers { display:flex; flex-wrap:wrap; gap:4px; margin-top:8px; }
.tier { font-size:11px; padding:2px 6px; border-radius:999px; background:var(--card2); color:var(--muted); }
.tier.on { background:var(--accent, #2563eb); color:#fff; }
.world-map { width:100%; height:auto; border-radius:8px; border:1px solid var(--border); }
.scene { display:flex; gap:12px; align-items:flex-start; padding:10px 0; border-bottom:1px solid var(--border); }
.scene:last-child { border-bottom:none; }
.scene-score { font-size:32px; font-weight:800; min-width:48px; line-height:1; }
.gping-strip { display:flex; flex-wrap:wrap; gap:8px; margin-top:8px; }
.gpill { display:inline-flex; gap:6px; align-items:center; padding:6px 10px; border:1px solid var(--border); border-radius:999px; background:var(--card2); font-size:13px; }
.bgp-topo { width:100%; max-width:520px; height:auto; }
.exit-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:10px; }
.exit-box { border:1px solid var(--border); border-radius:10px; padding:10px 12px; background:var(--card2); }

/* ===== 结论卡片：范围一眼能看懂 ===== */
.verdict-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.scope-pill { display: inline-flex; align-items: center; font-size: 14px; font-weight: 800; padding: 5px 14px; border-radius: 999px; letter-spacing: .02em; }
.scope-pill.ip { background: #fee2e2; color: #b91c1c; }
.scope-pill.port { background: #ffedd5; color: #c2410c; }
.scope-pill.ok { background: #dcfce7; color: #15803d; }
.scope-pill.partial { background: #ffedd5; color: #c2410c; }
.scope-pill.na { background: var(--card2, #f3f4f6); color: var(--muted); }
:root[data-theme="dark"] .scope-pill.ip { background: rgba(185,28,28,.28); color: #fca5a5; }
:root[data-theme="dark"] .scope-pill.port,
:root[data-theme="dark"] .scope-pill.partial { background: rgba(194,65,12,.28); color: #fdba74; }
:root[data-theme="dark"] .scope-pill.ok { background: rgba(21,128,61,.28); color: #86efac; }
.verdict h2 { font-size: 22px; line-height: 1.3; }
.verdict-advice { margin: 6px 0 10px; font-size: 15px; font-weight: 650; }
.reach-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 10px 0 12px; }
.reach-cell { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; background: rgba(255,255,255,.55); border: 1px solid var(--border); font-size: 14px; }
:root[data-theme="dark"] .reach-cell { background: rgba(0,0,0,.22); }
.reach-k { color: var(--muted); }
.reach-v { font-weight: 800; font-size: 16px; }
.reach-v.ok { color: var(--ok); }
.reach-v.fail { color: var(--bad); }
.reach-v.na { color: var(--muted); font-weight: 600; }
.verdict-details { font-size: 13px; color: var(--muted); }
.verdict-details li { margin: 2px 0; }
@media (max-width: 520px) {
  .reach-grid { gap: 6px; }
  .reach-cell { padding: 8px 10px; font-size: 13px; }
  .verdict h2 { font-size: 19px; }
}

/* ===== 首页 enrichment ===== */
.home-row { display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 14px; margin-bottom: 16px; }
.myip-card .big-ip { font-size: 22px; font-weight: 800; font-family: var(--mono); word-break: break-all; }
.myip-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.node-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.node-card { border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; background: var(--card); }
.node-card .nm { font-weight: 700; }
.node-card .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }
.node-card.offline { opacity: .7; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 8px 0 20px; }
.tool-card { display: flex; gap: 12px; align-items: flex-start; text-decoration: none !important; color: inherit; padding: 16px; margin-bottom: 0; }
.tool-card:hover, .tool-card:hover h3, .tool-card:hover .muted { text-decoration: none !important; }
.tool-card:hover .tool-ico { background: var(--primary); color: #fff; }
:root[data-theme="dark"] .tool-card:hover .tool-ico { color: #0b1120; }
.tool-ico { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; flex: 0 0 auto;
  background: var(--primary-weak); color: var(--primary); transition: background .18s ease, color .18s ease; }
.tool-ico svg { width: 20px; height: 20px; display: block; }
.tool-card h3 { margin: 0 0 4px; font-size: 15px; }
.explain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.explain-item { border: 1px solid var(--border); border-radius: 14px; padding: 12px; background: var(--card); }
.explain-item p { margin: 6px 0 0; font-size: 13px; color: var(--text); }
.explain-item .todo { color: var(--muted); }
.faq details { border-bottom: 1px solid var(--border); padding: 8px 0; }
.faq summary { cursor: pointer; font-weight: 650; }
.faq details p { margin: 8px 0 4px; color: var(--muted); font-size: 14px; }
.recent-list { display: flex; flex-wrap: wrap; gap: 8px; }
.recent-list a { text-decoration: none; }
.footer .brand-line { font-weight: 700; margin-bottom: 4px; }
@media (max-width: 860px) {
  .home-row, .explain-grid, .node-panel { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .tool-grid { grid-template-columns: 1fr; }
}


/* ===== SEO / 面包屑 / 说明区 ===== */
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); margin: 16px 0 0; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--primary); text-decoration: none; }
.crumbs [aria-current="page"] { color: var(--text); }
.seo-guide { margin: 28px 0 16px; }
.seo-guide h2 { margin: 16px 0 8px; }
.seo-guide h2:first-child { margin-top: 0; }
.seo-steps { margin: 0 0 8px; padding-left: 1.2em; }
.seo-steps li { margin: 4px 0; }
.related-tools { margin: 14px 0 0; font-size: 14px; color: var(--muted); }
.related-tools a { margin-right: 10px; }