:root {
  --ink: #182230;
  --muted: #5d6b7c;
  --line: #dbe3ec;
  --bg: #f6f8fb;
  --panel: #ffffff;
  --primary: #124577;
  --primary-strong: #0b2f55;
  --blue: #1d72b8;
  --green: #1d8f68;
  --orange: #d77b19;
  --shadow: 0 18px 45px rgba(17, 38, 62, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  background: var(--bg);
}

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

img {
  max-width: 100%;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav-wrap,
.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.nav-wrap {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-strong), var(--blue));
}

.brand-title {
  display: block;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-subtitle {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--primary);
  font-size: 22px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
}

.site-nav a {
  padding: 10px 11px;
  border-radius: 8px;
  color: #2d3b4c;
}

.site-nav a:hover,
.site-nav a.active {
  background: #eaf3fb;
  color: var(--primary);
}

.site-nav .nav-cta {
  margin-left: 8px;
  background: var(--primary);
  color: #fff;
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta.active {
  background: var(--primary-strong);
  color: #fff;
}

.hero {
  padding: 74px 0 58px;
  background: linear-gradient(180deg, #ffffff 0%, #eef4fa 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
}

.eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: 0;
  margin: 0;
}

h1 {
  margin-top: 16px;
  font-size: clamp(34px, 5vw, 58px);
}

h2 {
  font-size: clamp(26px, 3vw, 38px);
}

h3 {
  font-size: 21px;
}

p {
  margin: 0;
}

.hero-text {
  margin-top: 20px;
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  font-weight: 700;
  color: var(--primary);
  background: #fff;
}

.button.primary {
  color: #fff;
  background: var(--primary);
}

.button.primary:hover {
  background: var(--primary-strong);
}

.button:hover {
  border-color: var(--primary-strong);
  color: var(--primary-strong);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #314255;
  font-size: 14px;
}

.dashboard-visual {
  border: 1px solid #c8d7e6;
  border-radius: 8px;
  background: #fdfefe;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.dashboard-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 18px;
  color: #fff;
  background: var(--primary-strong);
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(29, 143, 104, 0.2);
}

.dashboard-body {
  padding: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.metric strong {
  display: block;
  font-size: 24px;
  color: var(--primary);
}

.metric span {
  color: var(--muted);
  font-size: 13px;
}

.flow-lines {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.flow-line {
  display: grid;
  grid-template-columns: 82px 1fr 48px;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.bar {
  height: 9px;
  border-radius: 999px;
  background: #dfe8f1;
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--blue);
}

.bar.green i {
  background: var(--green);
}

.bar.orange i {
  background: var(--orange);
}

.section {
  padding: 72px 0;
  background: #fff;
}

.section.alt {
  background: var(--bg);
}

.section-header {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-header p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 17px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: var(--panel);
  box-shadow: 0 8px 22px rgba(22, 45, 70, 0.05);
}

.card p {
  margin-top: 10px;
  color: var(--muted);
}

.card-link {
  display: inline-flex;
  margin-top: 16px;
  color: var(--primary);
  font-weight: 700;
}

.feature-list,
.check-list {
  padding: 0;
  margin: 16px 0 0;
  list-style: none;
}

.feature-list li,
.check-list li {
  position: relative;
  padding-left: 20px;
  margin-top: 8px;
  color: #334357;
}

.feature-list li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
}

.problem-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.problem-list li {
  border-left: 4px solid var(--orange);
  border-radius: 8px;
  padding: 15px 16px;
  background: #fff;
  box-shadow: 0 8px 18px rgba(22, 45, 70, 0.05);
}

.step-list {
  display: grid;
  gap: 14px;
  counter-reset: steps;
}

.step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.step::before {
  counter-increment: steps;
  content: counter(steps);
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: #fff;
  font-weight: 800;
  background: var(--primary);
}

.step p {
  color: var(--muted);
  margin-top: 5px;
}

.page-hero {
  padding: 64px 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.page-hero p {
  max-width: 820px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 18px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 30px;
  align-items: start;
}

.article-content {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 34px;
  background: #fff;
}

.article-content h2 {
  margin-top: 30px;
  font-size: 25px;
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content p {
  margin-top: 12px;
  color: #334357;
}

.article-content ul,
.article-content ol {
  margin: 14px 0 0;
  padding-left: 22px;
  color: #334357;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.sidebar {
  position: sticky;
  top: 92px;
}

.cta {
  padding: 34px;
  border-radius: 8px;
  color: #fff;
  background: var(--primary-strong);
}

.cta p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.82);
}

.cta .button {
  margin-top: 22px;
}

.site-footer {
  padding: 48px 0 28px;
  color: #dce8f4;
  background: #10273e;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 28px;
}

.site-footer h3 {
  font-size: 17px;
  color: #fff;
}

.site-footer p,
.site-footer a {
  color: #c2d2e2;
}

.footer-links {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.copyright {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #adc0d3;
  font-size: 14px;
}

.contact-block {
  display: grid;
  gap: 12px;
}

.contact-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-row strong {
  color: var(--primary);
}

.article-card {
  display: block;
  min-height: 100%;
}

.article-card .meta {
  margin-top: 12px;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .site-nav {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .site-nav .nav-cta {
    margin-left: 0;
  }

  .hero-grid,
  .article-layout,
  .grid.four,
  .grid.three,
  .grid.two,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-visual {
    max-width: 620px;
  }
}

@media (max-width: 640px) {
  .nav-wrap,
  .container {
    width: min(100% - 24px, 1180px);
  }

  .brand {
    min-width: 0;
  }

  .brand-subtitle {
    display: none;
  }

  .hero,
  .section,
  .page-hero {
    padding: 48px 0;
  }

  .hero-grid {
    gap: 28px;
  }

  .problem-list,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .article-content {
    padding: 22px;
  }

  .contact-row {
    grid-template-columns: 1fr;
  }
}