:root {
  --navy: #17365d;
  --blue: #2d68a1;
  --sky: #e7f1fb;
  --line: #b8c8d8;
  --text: #263442;
  --muted: #65778a;
  --panel: #ffffff;
  --soft: #f4f7fa;
  --gold: #f5b942;
  --green: #3a8b55;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  background: #dfe8f1 url("data:image/svg+xml,%3Csvg width='12' height='12' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 11h12' stroke='%23c7d4e0'/%3E%3C/svg%3E") repeat-x top;
  line-height: 1.65;
}

a {
  color: #1f5e96;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.top-strip {
  background: #102a48;
  color: #dce9f6;
  font-size: 13px;
}

.compact {
  min-height: 32px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.compact a {
  color: #eaf4ff;
}

.brand-row {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(#f8fbff, #e5edf6);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: 0 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--navy);
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, #1f5f99, #49a0d9);
  box-shadow: inset 0 1px rgba(255,255,255,.35), 0 2px 5px rgba(21,50,80,.2);
  font-weight: 700;
}

.brand strong {
  display: block;
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0;
}

.brand small {
  display: block;
  color: var(--muted);
  margin-top: 6px;
}

.search {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.search input {
  height: 34px;
  width: 220px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 10px;
}

.main-nav {
  background: linear-gradient(#3577ad, #1f4e7d);
  border-top: 1px solid #74a5cf;
  border-bottom: 1px solid #0d2b48;
}

.main-nav .wrap {
  display: flex;
  align-items: center;
  overflow-x: auto;
}

.main-nav a {
  color: #fff;
  display: block;
  padding: 13px 20px;
  border-left: 1px solid rgba(255,255,255,.2);
  border-right: 1px solid rgba(0,0,0,.18);
  font-weight: 700;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav .active {
  background: rgba(10,34,58,.28);
  text-decoration: none;
}

.notice {
  margin-top: 18px;
  padding: 12px 16px;
  border: 1px solid #e0c171;
  background: #fff7dc;
  color: #60470d;
  border-radius: 6px;
}

.hero {
  padding: 32px 0 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 28px;
  align-items: center;
}

.hero-copy,
.software-shot,
.content-panel,
.side-box,
.download-card,
.feature-list article,
.faq-list details,
.timeline article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(40,70,100,.08);
}

.hero-copy {
  padding: 30px;
}

.eyebrow {
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  margin: 0 0 8px;
}

h1,
h2,
h3 {
  color: var(--navy);
  line-height: 1.25;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(32px, 5vw, 52px);
  margin: 0 0 14px;
}

h2 {
  font-size: 24px;
  margin: 0 0 12px;
}

h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.lead {
  font-size: 18px;
  color: #34495f;
  margin-bottom: 22px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 5px;
  font-weight: 700;
  border: 1px solid transparent;
}

.button:hover {
  text-decoration: none;
}

.button.primary {
  color: #fff;
  background: linear-gradient(#4a94c8, #1e6099);
  border-color: #18517f;
}

.button.secondary {
  color: var(--navy);
  background: #fff;
  border-color: var(--line);
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 8px;
}

.quick-facts li {
  border: 1px solid #d6e2ec;
  background: var(--soft);
  padding: 10px;
  border-radius: 6px;
}

.quick-facts strong,
.quick-facts span {
  display: block;
}

.quick-facts span {
  color: var(--muted);
  font-size: 14px;
}

.software-shot {
  padding: 16px;
}

.software-shot img {
  display: block;
  width: 100%;
  min-height: 220px;
  object-fit: contain;
  background: #edf3f9;
  border: 1px solid #cfdae5;
  border-radius: 4px;
}

.shot-caption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 22px;
  margin: 22px auto;
}

.content-panel,
.side-box {
  padding: 24px;
}

.download-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid #e1e8ef;
}

.download-line b {
  color: var(--green);
  font-size: 13px;
}

.feature-band {
  background: linear-gradient(#f8fbff, #edf4fa);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 32px 0;
  margin: 30px 0;
}

.feature-grid,
.download-grid,
.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-grid article {
  background: #fff;
  border: 1px solid #d7e2ec;
  border-radius: 8px;
  padding: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 38px;
}

.check-list {
  padding-left: 20px;
}

.text-link {
  font-weight: 700;
}

.page-title {
  padding: 34px 0 20px;
}

.page-title p {
  max-width: 780px;
}

.download-grid {
  margin-bottom: 24px;
}

.download-card {
  padding: 24px;
}

.disk-label {
  display: inline-block;
  color: #fff;
  background: var(--green);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
}

.download-card .button {
  width: 100%;
  margin: 12px 0 8px;
}

.download-card small {
  color: var(--muted);
}

.steps {
  margin-bottom: 0;
}

.feature-list {
  margin-bottom: 36px;
}

.feature-list article {
  padding: 22px;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-bottom: 36px;
}

.faq-list details {
  padding: 18px 20px;
}

.faq-list summary {
  cursor: pointer;
  color: var(--navy);
  font-weight: 700;
}

.timeline {
  display: grid;
  gap: 14px;
  margin-bottom: 36px;
}

.timeline article {
  padding: 20px;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
}

.timeline time {
  color: #fff;
  background: var(--blue);
  border-radius: 6px;
  padding: 8px 12px;
  text-align: center;
  font-weight: 700;
  height: fit-content;
}

.site-footer {
  color: #dce9f6;
  background: #102a48;
  border-top: 4px solid #2d68a1;
  padding: 24px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 20px;
  align-items: start;
}

.site-footer a {
  color: #fff;
}

@media (max-width: 860px) {
  .brand-row,
  .hero-grid,
  .section-grid,
  .two-col,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .brand-row {
    display: grid;
    padding: 18px;
  }

  .search {
    width: 100%;
  }

  .search input {
    width: 100%;
  }

  .feature-grid,
  .download-grid,
  .feature-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .wrap {
    width: min(100% - 22px, 1120px);
  }

  .brand strong {
    font-size: 28px;
  }

  .main-nav a {
    padding: 11px 14px;
  }

  .hero-copy,
  .content-panel,
  .side-box,
  .download-card {
    padding: 18px;
  }

  .quick-facts,
  .feature-grid,
  .download-grid,
  .feature-list,
  .timeline article {
    grid-template-columns: 1fr;
  }
}