:root {
  --dt-blue: #1677ff;
  --dt-blue-700: #0f5fd7;
  --dt-navy: #172033;
  --dt-text: #263142;
  --dt-muted: #647083;
  --dt-line: #d9e6fb;
  --dt-soft: #f3f7ff;
  --dt-cyan: #19a8ff;
  --dt-green: #15803d;
  --dt-purple: #7c3aed;
  --surface: #ffffff;
  --shadow: 0 18px 48px rgba(23, 32, 51, .10);
  --radius: 10px;
  --container: 1200px;
}

body {
  background:
    linear-gradient(90deg, rgba(22, 119, 255, .04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(22, 119, 255, .04) 1px, transparent 1px),
    #f7faff;
  background-size: 44px 44px;
  color: var(--dt-text);
}

.site-shell {
  background: linear-gradient(180deg, rgba(255,255,255,.74), rgba(247,250,255,.97) 520px, #fff 100%);
}

.site-header {
  background: rgba(251, 253, 255, .94);
  border-bottom: 1px solid rgba(217, 230, 251, .95);
  border-top: 4px solid var(--dt-blue);
  box-shadow: 0 10px 30px rgba(23, 32, 51, .06);
}

.header-inner {
  min-height: 76px;
}

.brand img,
.footer-brand img {
  border: 1px solid rgba(22, 119, 255, .16);
  border-radius: 6px;
  box-shadow: none;
}

.brand strong,
.footer-logo {
  font-weight: 850;
}

.desktop-nav {
  gap: 2px;
}

.desktop-nav a,
.mobile-nav a {
  border-radius: 6px;
  color: #405165;
  font-weight: 760;
}

.desktop-nav a.router-link-active,
.desktop-nav a:hover,
.mobile-nav a.router-link-active,
.mobile-nav a:hover {
  background: #eaf3ff;
  color: var(--dt-blue-700);
}

.btn,
.header-download,
.icon-button {
  border-radius: 8px;
}

.btn,
.header-download {
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 850;
  letter-spacing: 0;
  min-height: 48px;
  padding: 0 22px;
  position: relative;
  touch-action: manipulation;
  transition:
    background-color .18s ease,
    border-color .18s ease,
    box-shadow .18s ease,
    color .18s ease,
    transform .18s ease;
  white-space: nowrap;
}

.btn.primary,
.header-download {
  background: #1677ff;
  border-color: #1677ff;
  box-shadow:
    0 10px 22px rgba(22, 119, 255, .24),
    inset 0 1px 0 rgba(255,255,255,.22);
  color: #fff;
}

.header-download {
  min-height: 46px;
  padding: 0 18px;
}

.btn.ghost,
.btn.secondary,
.icon-button {
  background: #ffffff;
  border-color: #c9daf7;
  color: var(--dt-blue-700);
}

.btn.ghost,
.btn.secondary {
  box-shadow: 0 6px 14px rgba(23, 32, 51, .05);
}

.btn.primary:hover,
.header-download:hover {
  background: #0f5fd7;
  border-color: #0f5fd7;
  box-shadow:
    0 14px 28px rgba(22, 119, 255, .28),
    inset 0 1px 0 rgba(255,255,255,.18);
}

.btn.ghost:hover,
.btn.secondary:hover {
  background: #eef6ff;
  border-color: rgba(22, 119, 255, .36);
  box-shadow: 0 10px 20px rgba(23, 32, 51, .08);
  color: #0f5fd7;
}

.btn:active,
.header-download:active {
  box-shadow: 0 6px 14px rgba(22, 119, 255, .18);
  transform: translateY(0);
}

.btn svg,
.header-download svg {
  flex: none;
  height: 18px;
  width: 18px;
}

.platform-download-card .btn,
.download-card .btn,
.download-summary .btn {
  min-height: 50px;
}

.home-windows-download {
  box-shadow:
    0 16px 34px rgba(22, 119, 255, .30),
    inset 0 1px 0 rgba(255,255,255,.24);
  gap: 10px;
  min-height: 56px;
  padding: 0 24px 0 18px;
}

.home-windows-download small {
  align-items: center;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 6px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 850;
  height: 24px;
  line-height: 1;
  padding: 0 8px;
}

.windows-mark {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 6px;
  display: inline-block;
  flex: none;
  height: 30px;
  padding: 6px;
  width: 30px;
}

.windows-mark::before {
  background: #fff;
  border-radius: 1px;
  box-shadow: 9px 0 0 #fff, 0 9px 0 #fff, 9px 9px 0 #fff;
  content: "";
  display: block;
  height: 7px;
  width: 7px;
}

.home-hero,
.download-hero,
.dt-hero,
.download-official-hero,
.article-detail-hero,
.article-index-hero {
  background:
    linear-gradient(90deg, rgba(22, 119, 255, .08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(37, 99, 235, .07) 1px, transparent 1px),
    linear-gradient(135deg, #f5f9ff 0%, #eef6ff 50%, #ffffff 100%);
  background-size: 58px 58px, 58px 58px, auto;
  padding-top: 72px;
}

.download-official-hero {
  text-align: center;
}

.download-official-hero:before {
  display: none;
}

.official-hero-inner {
  max-width: 920px;
}

.download-official-hero h1 {
  margin-left: auto;
  margin-right: auto;
}

.official-download-actions {
  justify-content: center;
}

.section-tabs {
  margin-left: auto;
  margin-right: auto;
}

h1 {
  font-size: clamp(38px, 5.2vw, 64px);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(28px, 3.4vw, 42px);
}

h3 {
  font-size: 20px;
}

.dt-badge-row span,
.download-pill,
.eyebrow {
  color: var(--dt-blue-700);
}

.dt-badge-row span,
.download-pill {
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(22, 119, 255, .20);
  border-radius: 6px;
}

.dt-lead,
.official-lead {
  color: #536176;
}

.home-stat-grid {
  gap: 14px;
}

.home-stat-grid div,
.workbench-card,
.dt-main-card,
.dt-task-list span,
.solution-list div,
.quick-product-grid a,
.market-links a {
  background: #fbfdfc;
  border-color: var(--dt-line);
  border-radius: 8px;
}

.home-stat-grid div {
  border-left: 4px solid var(--dt-blue);
}

.home-workbench,
.download-summary,
.dt-window,
.market-band,
.service-band,
.official-product-card,
.article-card,
.workbench-feature,
.capability-card,
.download-card,
.platform-download-card,
.solution-card,
.service-help-grid a {
  border: 1px solid var(--dt-line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.home-workbench,
.download-summary,
.dt-window {
  background: #ffffff;
}

.workbench-top {
  border-bottom: 1px solid var(--dt-line);
  margin-bottom: 20px;
  padding-bottom: 16px;
}

.workbench-card {
  background: linear-gradient(135deg, #eef6ff, #ffffff);
}

.workbench-feature,
.capability-card,
.download-card,
.platform-download-card,
.solution-card,
.article-card {
  background: #fff;
  border-left: 4px solid rgba(22, 119, 255, .72);
}

.workbench-feature svg,
.capability-card svg,
.download-card > svg,
.platform-download-card svg,
.service-help-grid svg,
.dt-task-list svg,
.solution-list svg {
  color: var(--dt-blue);
}

.home-product-showcase article,
.official-product-card {
  background: #fff;
  border-radius: 10px;
}

.home-product-showcase article:nth-child(even),
.official-product-card:nth-child(even) {
  border-left: 4px solid #0f5fd7;
}

.home-product-showcase img,
.official-product-card img {
  background: #f3f7ff;
  border: 1px solid #d9e6fb;
  border-radius: 8px;
}

.section {
  padding: 70px 0;
}

.muted-section,
.article-home-section {
  background:
    linear-gradient(90deg, rgba(22, 119, 255, .045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(37, 99, 235, .04) 1px, transparent 1px),
    #f5f9ff;
  background-size: 54px 54px;
}

.section-heading.center {
  margin-inline: 0;
  text-align: left;
}

.service-chip-list span {
  background: #fff;
  border-color: #c9daf7;
  border-radius: 6px;
  color: var(--dt-blue-700);
}

.article-card-grid {
  gap: 20px;
}

.article-card em,
.text-link,
.official-product-card a,
.site-footer nav,
.back-link {
  color: var(--dt-blue-700);
}

.article-body {
  background: #fff;
}

.article-body p {
  color: #374151;
}

.site-footer {
  background: #172033;
  border-top: 0;
  color: #dbe5ef;
}

.site-footer .footer-logo,
.site-footer strong {
  color: #fff;
}

.site-footer .footer-text,
.site-footer .footer-note {
  color: #b8c4d4;
}

.site-footer nav {
  color: #b9d8ff;
}

@media (max-width: 1080px) {
  .mobile-nav {
    border-radius: 10px;
  }
}

@media (max-width: 680px) {
  .home-hero,
  .download-hero,
  .dt-hero,
  .download-official-hero,
  .article-detail-hero,
  .article-index-hero {
    padding-top: 48px;
  }

  h1 {
    font-size: 36px;
  }

  .section-heading.center {
    text-align: left;
  }

  .section-tabs {
    grid-template-columns: 1fr;
  }
}