/* ===== IP 查询 — 浅色现代主题 ===== */
:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1a2033;
  --text-2: #5b6478;
  --muted: #98a1b3;
  --line: #e6e9f2;
  --accent: #4f46e5;
  --accent-2: #7c3aed;
  --accent-soft: #eef0fe;
  --ok: #0e9f6e;
  --err: #dc2626;
  --err-soft: #fef2f2;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .07);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, "Courier New", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(124, 58, 237, .10), transparent 60%),
    radial-gradient(900px 420px at -10% 0%, rgba(79, 70, 229, .10), transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.page { max-width: 760px; margin: 0 auto; padding: 28px 18px 48px; }

/* ---- 头部 ---- */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 22px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo {
  width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center; font-size: 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 16px rgba(79, 70, 229, .35);
}
.brand h1 { font-size: 21px; letter-spacing: .5px; }
.brand-sub { font-size: 12.5px; color: var(--text-2); margin-top: 2px; }

/* ---- 卡片 ---- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 18px;
}
.card-hero {
  background: linear-gradient(180deg, #ffffff 0%, #fbfbff 100%);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--accent), var(--accent-2)) 1;
}
.card-label {
  font-size: 13px; font-weight: 600; color: var(--text-2);
  letter-spacing: 1px; margin-bottom: 14px;
}
.card-note { font-size: 12.5px; color: var(--text-2); line-height: 1.7; margin-top: 12px; }

/* ---- IP 主显示 ---- */
.ip-display { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.ip-text {
  font-family: var(--mono);
  font-size: clamp(26px, 6vw, 42px);
  font-weight: 700; letter-spacing: .5px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  word-break: break-all;
}
.ip-text-sm { font-family: var(--mono); font-size: 20px; font-weight: 700; word-break: break-all; }
.ipv6-row {
  margin-top: 12px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.mini-label {
  font-size: 11px; font-weight: 700; color: var(--accent);
  background: var(--accent-soft); border-radius: 6px; padding: 3px 8px;
}
.ipv6-text { font-family: var(--mono); font-size: 14.5px; color: var(--text); word-break: break-all; }

/* ---- 按钮 ---- */
.btn {
  border: none; cursor: pointer; font-family: inherit;
  border-radius: 11px; font-size: 14px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 7px;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, opacity .12s;
  user-select: none;
}
.btn:active { transform: scale(.96); }
.btn-copy {
  background: var(--accent-soft); color: var(--accent);
  padding: 8px 16px;
}
.btn-copy:hover { background: #e3e6fd; }
.btn-copy-sm { padding: 5px 12px; font-size: 12.5px; }
.btn-ghost {
  background: var(--card); color: var(--text-2);
  border: 1px solid var(--line); padding: 9px 16px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, .05);
}
.btn-ghost:hover { color: var(--accent); border-color: #d3d7f7; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; padding: 11px 22px;
  box-shadow: 0 4px 14px rgba(79, 70, 229, .35);
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(79, 70, 229, .45); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn-icon { font-size: 15px; }

/* ---- 状态行 ---- */
.status { font-size: 13px; margin-top: 12px; min-height: 18px; color: var(--text-2); }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }

/* ---- 归属地网格 ---- */
.geo-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px; margin-top: 20px;
}
.geo-item {
  background: #f8f9fe; border: 1px solid var(--line);
  border-radius: 12px; padding: 11px 13px;
}
.geo-label { display: block; font-size: 11.5px; color: var(--muted); margin-bottom: 4px; }
.geo-value { display: block; font-size: 14.5px; font-weight: 600; word-break: break-all; }
.geo-error {
  margin-top: 14px; font-size: 13px; color: var(--err);
  background: var(--err-soft); border-radius: 10px; padding: 10px 14px;
}

/* ---- 局域网 IP ---- */
.local-ips { display: flex; flex-wrap: wrap; gap: 10px; }
.local-chip {
  font-family: var(--mono); font-size: 14.5px; font-weight: 600;
  background: var(--accent-soft); color: var(--accent);
  border-radius: 10px; padding: 8px 14px;
  word-break: break-all;
}
.local-chip.obscured { background: #fff7e8; color: #b45309; font-family: inherit; font-weight: 500; }
.muted { color: var(--muted); font-size: 14px; }

/* ---- 查询 ---- */
.query-row { display: flex; gap: 10px; flex-wrap: wrap; }
.query-input {
  flex: 1; min-width: 220px;
  font-family: var(--mono); font-size: 14.5px;
  border: 1.5px solid var(--line); border-radius: 11px;
  padding: 11px 14px; outline: none; background: #fafbff;
  transition: border-color .15s, box-shadow .15s;
}
.query-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79, 70, 229, .14); background: #fff; }
.query-error {
  margin-top: 12px; font-size: 13px; color: var(--err);
  background: var(--err-soft); border-radius: 10px; padding: 10px 14px;
}
.query-result { margin-top: 18px; border-top: 1px dashed var(--line); padding-top: 16px; }
.query-ip-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }

/* ---- 页脚 ---- */
.site-footer { text-align: center; margin-top: 26px; }
.site-footer p { font-size: 12px; color: var(--muted); line-height: 1.8; }

/* ---- 动效 ---- */
@keyframes fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.card { animation: fade-up .4s ease both; }
.card:nth-child(2) { animation-delay: .06s; }
.card:nth-child(3) { animation-delay: .12s; }

@media (max-width: 520px) {
  .page { padding: 20px 14px 40px; }
  .card { padding: 18px; }
  .site-header { flex-direction: column; align-items: flex-start; }
}