:root {
  --ink: #111827;
  --muted: #536273;
  --line: #dbe3ea;
  --surface: #f4f7f9;
  --blue: #0068b5;
  --blue-dark: #003b66;
  --cyan: #00a3e0;
  --white: #ffffff;
  --max-width: 1180px;
  --shadow: 0 16px 40px rgba(17, 24, 39, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Arial, "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); text-decoration: underline; }

.modern-site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
}

.modern-header-inner,
.modern-container {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.modern-header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.modern-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 265px;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.2;
}

.modern-brand:hover { color: var(--blue); text-decoration: none; }

.modern-brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--white);
  background: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

.modern-brand-title { font-size: 15px; font-weight: 700; }
.modern-brand-subtitle { margin-top: 2px; color: var(--muted); font-size: 11px; }

.modern-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  flex: 1;
}

.modern-nav a,
.modern-actions a {
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.modern-nav a:hover,
.modern-nav a.is-active,
.modern-actions a:hover { color: var(--blue); text-decoration: none; }

.modern-actions { display: flex; align-items: center; gap: 12px; }
.modern-actions .modern-action-primary { color: var(--white); background: var(--blue); padding: 7px 13px; }
.modern-actions .modern-action-primary:hover { color: var(--white); background: var(--blue-dark); }

.modern-nav-toggle {
  display: none;
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  padding: 8px 10px;
  cursor: pointer;
  font-size: 18px;
}

.modern-hero {
  min-height: 500px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  background: var(--ink);
  color: var(--white);
}

.modern-hero-copy {
  width: min(100% - 40px, 620px);
  justify-self: end;
  align-self: center;
  padding: 70px 48px 70px 20px;
}

.modern-hero-media { min-height: 500px; background: var(--blue-dark); }
.modern-hero-media img { width: 100%; height: 100%; object-fit: cover; display: block; opacity: .86; }

.modern-eyebrow {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.modern-hero h1,
.modern-page-title {
  margin: 14px 0 18px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.15;
}

.modern-hero h1 { max-width: 680px; font-size: clamp(38px, 5vw, 66px); }
.modern-page-title { font-size: clamp(34px, 5vw, 54px); }
.modern-hero p { max-width: 620px; color: #dce7ef; font-size: 18px; }

.modern-hero-actions,
.modern-button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.modern-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 9px 18px;
  border: 1px solid var(--blue);
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.modern-button:hover { background: var(--blue-dark); color: var(--white); text-decoration: none; }
.modern-button.secondary { border-color: #7f95a5; background: transparent; color: var(--white); }
.modern-button.secondary:hover { background: #ffffff; color: var(--ink); }

.modern-section { padding: 78px 0; }
.modern-section.surface { background: var(--surface); }
.modern-section-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 30px; }
.modern-section h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); font-weight: 400; line-height: 1.2; }
.modern-section-lead { max-width: 650px; margin: 0; color: var(--muted); }

.modern-grid { display: grid; gap: 20px; }
.modern-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.modern-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.modern-card {
  min-height: 180px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--white);
}

.modern-card:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.modern-card h3 { margin: 0 0 10px; font-size: 22px; font-weight: 600; }
.modern-card p { margin: 0; color: var(--muted); }
.modern-card .modern-card-link { display: inline-block; margin-top: 18px; font-weight: 700; }

.modern-feature {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 44px;
  align-items: center;
}

.modern-feature-media img { width: 100%; max-height: 370px; object-fit: cover; }
.modern-feature-copy h2 { margin: 0 0 16px; font-size: clamp(28px, 4vw, 44px); font-weight: 400; line-height: 1.2; }
.modern-feature-copy p { color: var(--muted); }

.modern-site-footer { padding: 30px 0; color: #c8d3dd; background: #17212b; font-size: 13px; }
.modern-footer-inner { display: flex; justify-content: space-between; gap: 25px; }
.modern-site-footer a { color: #dce7ef; }

.modern-legacy-content {
  width: min(calc(100% - 40px), var(--max-width));
  min-height: 60vh;
  margin: 0 auto;
  padding: 48px 0 72px;
}

.modern-legacy-content > table,
.modern-legacy-content > form,
.modern-legacy-content > p,
.modern-legacy-content > h1,
.modern-legacy-content > h2,
.modern-legacy-content > h3,
.modern-legacy-content > div { max-width: 100%; }
.modern-legacy-content table { border-color: var(--line); }
.modern-legacy-content td,
.modern-legacy-content th { padding: 10px; vertical-align: top; }
.modern-legacy-content input,
.modern-legacy-content textarea,
.modern-legacy-content select { max-width: 100%; padding: 10px 12px; border: 1px solid #b9c6d1; font: inherit; }
.modern-legacy-content input[type=submit],
.modern-legacy-content input[type=button],
.modern-legacy-content input[type=reset] { border: 0; background: var(--blue); color: var(--white); cursor: pointer; }
.modern-legacy-content img { max-width: 100%; height: auto; }
.modern-legacy-content .table_title,
.modern-legacy-content .text { color: var(--blue); }

@media (max-width: 980px) {
  .modern-header-inner { gap: 12px; }
  .modern-brand { min-width: 220px; }
  .modern-nav { gap: 12px; }
  .modern-nav a { font-size: 13px; }
}

@media (max-width: 760px) {
  .modern-header-inner { min-height: 64px; }
  .modern-brand { min-width: 0; }
  .modern-brand-title { font-size: 13px; }
  .modern-brand-subtitle { display: none; }
  .modern-nav-toggle { display: block; }
  .modern-nav,
  .modern-actions { display: none; }
  .modern-site-header.is-open .modern-nav,
  .modern-site-header.is-open .modern-actions { display: flex; }
  .modern-site-header.is-open .modern-header-inner { flex-wrap: wrap; padding: 10px 0 14px; }
  .modern-site-header.is-open .modern-nav { order: 3; width: 100%; flex-direction: column; align-items: stretch; gap: 0; }
  .modern-site-header.is-open .modern-nav a { padding: 10px 0; border-top: 1px solid var(--line); }
  .modern-site-header.is-open .modern-actions { order: 4; width: 100%; justify-content: flex-start; padding-top: 10px; }
  .modern-hero { display: block; }
  .modern-hero-copy { width: 100%; padding: 58px 20px; }
  .modern-hero-media { min-height: 260px; }
  .modern-section { padding: 56px 0; }
  .modern-section-head { display: block; }
  .modern-section-lead { margin-top: 14px; }
  .modern-grid.three,
  .modern-grid.two,
  .modern-feature { grid-template-columns: 1fr; }
  .modern-feature-media { order: 2; }
  .modern-footer-inner { display: block; }
  .modern-footer-inner > * + * { margin-top: 10px; }
  .modern-legacy-content { width: min(calc(100% - 28px), var(--max-width)); padding: 28px 0 46px; overflow-x: auto; }
  .modern-legacy-content table { font-size: 14px; }
}