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

:root {
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.065);
  --panel-strong: rgba(255, 255, 255, 0.095);
  --border: rgba(255, 255, 255, 0.12);
  --text: #f4f7fb;
  --muted: rgba(244, 247, 251, 0.68);
  --muted-2: rgba(244, 247, 251, 0.48);
  --primary: #42d9ff;
  --primary-2: #8b7cff;
  --success: #57f2b2;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 16% 18%, rgba(66, 217, 255, 0.20), transparent 32%),
    radial-gradient(circle at 88% 10%, rgba(139, 124, 255, 0.18), transparent 35%),
    radial-gradient(circle at 58% 92%, rgba(87, 242, 178, 0.12), transparent 34%),
    linear-gradient(135deg, #080c18 0%, #0b1020 45%, #060816 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent 80%);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(8, 12, 24, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: -1px;
  color: #06111c;
  background: linear-gradient(135deg, var(--primary), var(--success));
  box-shadow: 0 0 28px rgba(66, 217, 255, 0.35);
}

.brand-main {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.4px;
}

.brand-sub {
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted-2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  padding: 9px 12px;
  border-radius: 999px;
  transition: 0.22s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.main-page {
  padding: 64px 0 42px;
}

.page-title {
  margin-bottom: 28px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #9fefff;
  background: rgba(66, 217, 255, 0.08);
  border: 1px solid rgba(66, 217, 255, 0.28);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  margin-bottom: 22px;
}

.badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 14px var(--success);
}

h1 {
  font-size: clamp(36px, 5.6vw, 66px);
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(90deg, #fff, #a4efff 45%, #bfb5ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-desc {
  max-width: 760px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.section {
  padding: 30px 0;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 20px;
}

.section-title h2 {
  font-size: 28px;
  letter-spacing: -0.5px;
}

.section-title p {
  color: var(--muted-2);
  font-size: 14px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.article-card {
  min-height: 260px;
  padding: 24px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 50px rgba(0,0,0,0.25);
  transition: 0.22s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: rgba(66, 217, 255, 0.38);
  box-shadow: 0 20px 54px rgba(0,0,0,0.34);
}

.article-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted-2);
  font-size: 12px;
  margin-bottom: 18px;
}

.article-card h3 {
  font-size: 20px;
  line-height: 1.45;
  margin-bottom: 12px;
}

.article-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 18px;
}

.read-more {
  color: #9fefff;
  font-weight: 700;
  font-size: 14px;
}

.site-footer {
  margin-top: 44px;
  padding: 26px 0 30px;
  color: var(--muted-2);
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  font-size: 13px;
}

.footer-links {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.footer-links a:hover {
  color: #9fefff;
}

.article-page {
  padding: 52px 0;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 22px;
  align-items: start;
}

.article-content {
  padding: 42px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.article-content .article-meta {
  justify-content: flex-start;
  gap: 16px;
}

.article-content h1 {
  font-size: clamp(34px, 4.8vw, 52px);
  margin-bottom: 16px;
}

.article-content h2 {
  margin-top: 34px;
  margin-bottom: 14px;
  font-size: 24px;
}

.article-content h3 {
  margin-top: 24px;
  margin-bottom: 10px;
  font-size: 19px;
}

.article-content p {
  color: rgba(244, 247, 251, 0.75);
  line-height: 1.95;
  margin: 14px 0;
}

.article-content ul,
.article-content ol {
  margin: 14px 0 14px 22px;
  color: rgba(244, 247, 251, 0.75);
  line-height: 1.9;
}

.article-content code {
  font-family: Consolas, Monaco, "Courier New", monospace;
  color: #b8f7ff;
}

.article-content pre {
  margin: 18px 0;
  padding: 18px;
  overflow-x: auto;
  border-radius: 18px;
  background: rgba(0, 0, 0, 0.32);
  border: 1px solid rgba(255,255,255,0.09);
}

.sidebar {
  position: sticky;
  top: 94px;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.055);
  backdrop-filter: blur(18px);
}

.sidebar h3 {
  font-size: 16px;
  margin-bottom: 12px;
}

.sidebar a {
  display: block;
  color: var(--muted);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  font-size: 14px;
}

.sidebar a:last-child {
  border-bottom: none;
}

.sidebar a:hover {
  color: #9fefff;
}

.notice {
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(66, 217, 255, 0.25);
  background: rgba(66, 217, 255, 0.07);
  color: rgba(244, 247, 251, 0.78);
  line-height: 1.8;
  margin: 20px 0;
}

@media (max-width: 920px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 640px) {
  .navbar {
    height: auto;
    align-items: flex-start;
    flex-direction: column;
  }

  .main-page {
    padding-top: 44px;
  }

  .article-content {
    padding: 28px 22px;
  }

  .article-grid {
    grid-template-columns: 1fr;
  }
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.beian-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
}