:root {
  --bg: #f7fbff;
  --ink: #0e1628;
  --muted: #5b6681;
  --line: rgba(45, 70, 120, .14);
  --primary: #325dff;
  --purple: #7b4dff;
  --cyan: #20d4f5;
  --green: #21c98b;
  --amber: #ffbe3d;
  --card: rgba(255, 255, 255, .88);
  --dark: #071225;
  --shadow: 0 18px 50px rgba(22, 42, 84, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.72;
  background:
    linear-gradient(180deg, #eef6ff 0%, #f9fbff 38%, #ffffff 100%);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(860px, calc(100% - 32px)); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(248, 252, 255, .84);
  border-bottom: 1px solid var(--line);
}
.nav-shell {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand-mark img, .footer-logo img { object-fit: contain; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: #26334e;
}
.nav-links a { padding: 8px 2px; }
.nav-links a:hover, .text-link:hover { color: var(--primary); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; }
.nav-toggle span { display: block; height: 2px; margin: 6px 7px; background: #17213a; border-radius: 2px; }

.download-btn-jichanga-govcn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 22px;
  border-radius: 8px;
  color: #fff !important;
  font-weight: 700;
  background: linear-gradient(135deg, #2d6bff 0%, #8b47ff 58%, #20d4f5 100%);
  box-shadow: 0 12px 32px rgba(50, 93, 255, .36), inset 0 1px 0 rgba(255,255,255,.38);
  border: 1px solid rgba(255,255,255,.46);
  white-space: nowrap;
}
.download-btn-jichanga-govcn:hover { transform: translateY(-1px); filter: saturate(1.08); }
.nav-download { padding: 9px 16px !important; min-height: 38px; }
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 20px;
  border-radius: 8px;
  border: 1px solid rgba(50,93,255,.26);
  color: #193264;
  background: rgba(255,255,255,.76);
  font-weight: 700;
}

.hero-workbench {
  padding: 44px 0 30px;
  background:
    linear-gradient(135deg, #f4f9ff 0%, #eef4ff 48%, #f9fbff 100%);
}
.hero-grid, .split-grid, .page-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: center;
}
.hero-copy h1, .page-hero h1 {
  margin: 10px 0 16px;
  line-height: 1.12;
  font-size: clamp(34px, 5vw, 62px);
  letter-spacing: 0;
}
.hero-lead { margin: 0 0 22px; color: var(--muted); font-size: 17px; }
.eyebrow {
  margin: 0;
  color: #315dff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.signal-strip {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.signal-strip span {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.72);
  color: #34405d;
  font-size: 13px;
}
.hero-visual, .media-frame, .wide-media, .article-cover {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #08172f;
  border: 1px solid rgba(75, 108, 180, .18);
  box-shadow: var(--shadow);
}
.hero-visual img, .media-frame img, .wide-media img, .article-cover img {
  width: 100%;
  aspect-ratio: 5 / 3;
  object-fit: contain;
  background: #08172f;
}

section { padding: 34px 0; }
.editor-notes { padding-top: 28px; }
.two-note-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.note-card, .mini-card, .faq-card, .related-card, .news-card, .faq-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  box-shadow: 0 12px 32px rgba(20, 42, 82, .08);
}
.note-card { padding: 24px; }
h2 { margin: 0 0 12px; line-height: 1.28; font-size: clamp(24px, 3vw, 34px); letter-spacing: 0; }
h3 { margin: 0 0 8px; line-height: 1.34; letter-spacing: 0; }
p { margin: 0 0 12px; }
.split-section { padding: 32px 0; }
.split-section.alt { background: linear-gradient(180deg, rgba(242,247,255,.72), rgba(255,255,255,.55)); }
.split-copy { max-width: 560px; }
.text-link {
  display: inline-flex;
  margin-top: 8px;
  color: #244cff;
  font-weight: 800;
}
.section-head { margin: 0 0 20px; max-width: 820px; }
.wide-media { margin: 18px 0; }
.device-grid, .faq-grid, .related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.checkpoint-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.checkpoint-note {
  margin-top: 16px;
  color: var(--muted);
}
.mini-card, .faq-card { padding: 18px; }
.monitor-section { background: linear-gradient(135deg, rgba(12,26,55,.04), rgba(32,212,245,.06)); }
.download-panel { padding: 30px 0; }
.download-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 24px;
  border-radius: 8px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(8,18,37,.96), rgba(40,45,116,.92));
  box-shadow: var(--shadow);
}
.download-box .eyebrow, .download-box p { color: rgba(255,255,255,.78); }
.download-box h2 { color: #fff; }

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.news-card { overflow: hidden; }
.news-card a { display: block; height: 100%; }
.news-card img { width: 100%; aspect-ratio: 5 / 3; object-fit: contain; background: #08172f; }
.news-card span {
  display: inline-flex;
  margin: 14px 16px 4px;
  color: #315dff;
  font-size: 13px;
  font-weight: 800;
}
.news-card h3, .news-card p { padding: 0 16px; }
.news-card p { color: var(--muted); padding-bottom: 16px; }
.center-link { text-align: center; margin-top: 16px; }

.faq-grid { grid-template-columns: repeat(2, 1fr); }
.faq-card p { color: var(--muted); }
.about-slice { padding-bottom: 44px; }

.page-hero {
  padding: 42px 0 30px;
  background:
    linear-gradient(135deg, #eef6ff 0%, #f8fbff 100%);
}
.compact-hero h1 { font-size: clamp(32px, 4.4vw, 52px); }
.article-body {
  padding-top: 26px;
  padding-bottom: 18px;
}
.article-body section {
  padding: 0 0 24px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.article-body section:last-child { border-bottom: 0; }
.check-list {
  margin: 14px 0;
  padding: 0;
  list-style: none;
}
.check-list li {
  margin: 8px 0;
  padding-left: 22px;
  position: relative;
  color: #34405d;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--cyan));
}
.related-section { padding: 26px 0 42px; }
.related-card {
  padding: 18px;
  display: block;
  min-height: 112px;
}
.related-card strong { display: block; margin-bottom: 6px; }
.related-card span { color: var(--muted); }

.faq-page { padding-top: 24px; }
.faq-list { display: grid; gap: 14px; padding: 0 0 20px; }
.faq-item { padding: 20px; }
.faq-item h2 { font-size: 22px; }

.news-list-section { padding: 30px 0 48px; }
.news-detail { padding: 42px 0 50px; }
.news-detail h1 { margin: 8px 0 14px; line-height: 1.2; font-size: clamp(30px, 4vw, 46px); }
.article-cover { margin: 22px 0; }
.article-content h2 { font-size: 26px; margin-top: 24px; }
.article-content p { color: #29344d; }
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 28px 0;
}
.post-nav a, .article-actions a {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
  color: #23304b;
}
.article-related h2 { font-size: 26px; }
.article-actions {
  margin-top: 22px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.site-footer {
  padding: 34px 0 20px;
  color: rgba(255,255,255,.84);
  background: linear-gradient(135deg, #071225 0%, #101c44 58%, #1d235b 100%);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-start;
}
.footer-brand { max-width: 520px; }
.footer-brand p { color: rgba(255,255,255,.68); margin-top: 12px; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-links a { color: rgba(255,255,255,.82); }
.copyright {
  text-align: center;
  margin: 24px auto 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.74);
}

@media (max-width: 920px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255,255,255,.96);
    box-shadow: var(--shadow);
  }
  .nav-links.is-open { display: flex; }
  .nav-download { width: 100%; }
  .hero-grid, .split-grid, .page-hero-grid { grid-template-columns: 1fr; gap: 22px; }
  .split-section.alt .split-copy { order: 1; }
  .split-section.alt .media-frame { order: 2; }
  .device-grid, .news-grid, .related-grid, .checkpoint-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { flex-direction: column; }
}

@media (max-width: 620px) {
  .container, .narrow { width: min(100% - 24px, 1160px); }
  .hero-workbench, .page-hero { padding-top: 28px; }
  section { padding: 24px 0; }
  .two-note-grid, .device-grid, .news-grid, .faq-grid, .related-grid, .checkpoint-grid, .post-nav { grid-template-columns: 1fr; }
  .download-box { align-items: stretch; flex-direction: column; padding: 20px; }
  .download-btn-jichanga-govcn, .ghost-btn { width: 100%; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .note-card, .mini-card, .faq-card, .related-card, .faq-item { padding: 16px; }
  .nav-shell { min-height: 66px; }
  .nav-links { top: 66px; }
  .brand-mark img { width: 142px; }
}