:root {
  --bg: #0b1020;
  --bg-soft: #101731;
  --card: rgba(20, 28, 56, 0.62);
  --card-border: rgba(120, 150, 255, 0.14);
  --text: #e8ecf8;
  --text-dim: #9aa4c7;
  --accent: #5b8cff;
  --accent-2: #7c5cff;
  --green: #34d399;
  --red: #f87171;
  --gray: #8b93b0;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- 背景装饰 ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(92, 140, 255, 0.18), transparent 60%),
    radial-gradient(1000px 500px at 85% 110%, rgba(124, 92, 255, 0.14), transparent 60%),
    var(--bg);
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  animation: float 16s ease-in-out infinite alternate;
}

.orb-1 {
  width: 420px;
  height: 420px;
  background: rgba(91, 140, 255, 0.28);
  top: -120px;
  right: -80px;
}

.orb-2 {
  width: 360px;
  height: 360px;
  background: rgba(124, 92, 255, 0.24);
  bottom: -100px;
  left: -60px;
  animation-delay: -6s;
}

.orb-3 {
  width: 260px;
  height: 260px;
  background: rgba(52, 211, 153, 0.16);
  top: 40%;
  left: 55%;
  animation-delay: -11s;
}

@keyframes float {
  from { transform: translateY(0) scale(1); }
  to   { transform: translateY(40px) scale(1.08); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 150, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 150, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 0%, transparent 75%);
}

/* ---------- 头部 ---------- */
.header {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  font-size: 28px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.25), rgba(124, 92, 255, 0.25));
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
}

.brand-text h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-text p {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 2px;
}

.clock {
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--text-dim);
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 8px 14px;
  border-radius: 12px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ---------- 主区域 ---------- */
.main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

.hero h2 {
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(90deg, #ffffff, #a8c0ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sub {
  color: var(--text-dim);
  margin: 8px 0 24px;
  font-size: 15px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.search-box {
  flex: 1;
  min-width: 240px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 12px 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box:focus-within {
  border-color: rgba(91, 140, 255, 0.5);
  box-shadow: 0 0 0 4px rgba(91, 140, 255, 0.12);
}

.search-icon {
  width: 18px;
  height: 18px;
  color: var(--text-dim);
  flex-shrink: 0;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}

.search-box input::placeholder {
  color: var(--gray);
}

.refresh-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.15s, border-color 0.2s, background 0.2s;
}

.refresh-btn:hover {
  border-color: rgba(91, 140, 255, 0.5);
  background: rgba(30, 40, 80, 0.7);
}

.refresh-btn:active {
  transform: scale(0.97);
}

.refresh-btn svg {
  width: 16px;
  height: 16px;
  transition: transform 0.4s;
}

.refresh-btn.spinning svg {
  transform: rotate(360deg);
}

/* ---------- 卡片网格 ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s, background 0.25s;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--glow, rgba(91, 140, 255, 0.16)), transparent 60%);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(91, 140, 255, 0.45);
  background: rgba(24, 33, 66, 0.75);
}

.card:hover::before {
  opacity: 1;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--icon-bg-1, #244), var(--icon-bg-2, #422));
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray);
  box-shadow: 0 0 0 0 rgba(139, 147, 176, 0.4);
  transition: background 0.3s;
}

.status.up .dot {
  background: var(--green);
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.7);
}

.status.down .dot {
  background: var(--red);
  box-shadow: 0 0 8px rgba(248, 113, 113, 0.7);
}

.status.checking .dot {
  background: var(--gray);
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.card h3 {
  font-size: 18px;
  font-weight: 700;
}

.card .desc {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.5;
  flex: 1;
}

.card .host {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  font-size: 13px;
  color: var(--accent);
  word-break: break-all;
}

.card .host svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.card .go {
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(91, 140, 255, 0.12);
  border: 1px solid rgba(91, 140, 255, 0.3);
  color: var(--accent);
  font-size: 14px;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s, transform 0.25s;
}

.card:hover .go {
  opacity: 1;
  transform: translateX(0);
}

/* 卡片淡入动画 */
.card {
  animation: fadeUp 0.45s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 空状态 ---------- */
.empty {
  text-align: center;
  padding: 60px 0;
  color: var(--text-dim);
  font-size: 16px;
}

/* ---------- 页脚 ---------- */
.footer {
  text-align: center;
  padding: 24px;
  color: var(--gray);
  font-size: 13px;
}

.footer a {
  color: var(--text-dim);
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent);
}

.footer .beian {
  margin-top: 6px;
  font-size: 12px;
}

.footer .beian a {
  color: var(--gray);
}

.footer .beian a:hover {
  color: var(--accent);
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .header { padding-top: 20px; }
  .hero h2 { font-size: 24px; }
  .brand-text h1 { font-size: 18px; }
  .cards { grid-template-columns: 1fr; }
  .card .go { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .orb, .card { animation: none !important; }
  * { transition: none !important; }
}