:root {
  color-scheme: light;
  --ink: #182538;
  --muted: #65758a;
  --paper: #f4f7fa;
  --surface: #ffffff;
  --line: #d8e0e8;
  --blue: #288fc8;
  --blue-dark: #176f9e;
  --orange: #f2a31c;
  --wrap: 960px;
}

* { box-sizing: border-box; }

html { min-width: 320px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.6;
}

a { color: inherit; }
img { display: block; }

.wrap {
  width: min(calc(100% - 40px), var(--wrap));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 16px;
  font-weight: 800;
  text-decoration: none;
}

.brand img, .software-heading img { border-radius: 8px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-size: 13px;
}

.site-nav a { text-decoration: none; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--blue-dark); }

.hero {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  min-height: 560px;
  align-items: center;
  gap: 76px;
  padding: 64px 0;
}

.hero-lead {
  max-width: 610px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-download { width: auto; margin: 0; padding: 0 22px; }

.secondary-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.secondary-button:hover, .secondary-button:focus-visible { border-color: var(--blue); color: var(--blue-dark); }

.hero-meta { margin: 18px 0 0; color: #8996a7; font-size: 12px; }

.hero-product {
  display: flex;
  min-height: 330px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: 16px 16px 0 rgba(40, 143, 200, .13);
}

.hero-product img { border-radius: 18px; }
.hero-product-name { margin: 18px 0 28px; font-size: 20px; font-weight: 800; }
.hero-product-flow { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; color: var(--muted); font-size: 12px; }
.hero-product-flow span { padding: 7px 9px; border: 1px solid var(--line); background: var(--surface); }
.hero-product-flow i { align-self: center; color: var(--orange); font-style: normal; }

.download-section { padding: 82px 0 90px; }

.section-heading { margin-bottom: 34px; }
.section-heading h2, .tool-copy h2, .faq-title h2 { margin-bottom: 14px; font-size: 34px; line-height: 1.2; letter-spacing: 0; }
.section-heading > p:last-child { max-width: 650px; margin-bottom: 0; color: var(--muted); }

.split-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: end; }
.split-heading > p { margin-bottom: 4px; }

.centered-heading { text-align: center; }
.centered-heading .eyebrow { justify-content: center; }

.capabilities-section { padding: 88px 0; border-top: 1px solid var(--line); background: var(--surface); }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.capability { min-height: 280px; padding: 27px; border-top: 5px solid var(--blue); background: var(--paper); }
.capability-orange { border-color: var(--orange); }
.capability-teal { border-color: #2aa5a7; }
.capability-id { color: var(--blue-dark); font: 800 13px/1 Consolas, monospace; }
.capability h3 { margin: 50px 0 14px; font-size: 19px; line-height: 1.35; letter-spacing: 0; }
.capability p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

.tool-section { padding: 90px 0; background: var(--ink); color: #fff; }
.tool-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.tool-copy > p { color: #bec8d4; }
.tool-copy .eyebrow { color: #72c8e8; }
.text-link { display: inline-flex; gap: 10px; margin-top: 10px; color: #78cbea; font-size: 14px; font-weight: 800; text-decoration: none; }
.text-link span { color: var(--orange); }
.package-flow { display: grid; gap: 12px; }
.package-flow div { display: grid; grid-template-columns: 42px 1fr; align-items: center; gap: 13px; min-height: 70px; padding: 14px 18px; border: 1px solid #435268; background: #202e42; }
.package-flow b { color: var(--orange); font: 800 14px/1 Consolas, monospace; }
.package-flow span { font-size: 14px; font-weight: 700; }
.package-flow > i { padding-left: 18px; color: #72c8e8; font-style: normal; }

.workflow-section { padding: 88px 0; }
.workflow-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.workflow-step { min-height: 190px; padding: 25px 20px; border-right: 1px solid var(--line); }
.workflow-step:last-child { border-right: 0; }
.workflow-step > span { color: var(--orange); font: 800 17px/1 Consolas, monospace; }
.workflow-step h3 { margin: 32px 0 10px; font-size: 17px; letter-spacing: 0; }
.workflow-step p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

.faq-section { padding: 88px 0; border-top: 1px solid var(--line); background: var(--surface); }
.faq-layout { display: grid; grid-template-columns: .65fr 1.35fr; gap: 90px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; cursor: pointer; list-style: none; font-size: 15px; font-weight: 800; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--blue); font-size: 22px; font-weight: 400; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { margin: -3px 38px 20px 0; color: var(--muted); font-size: 13px; }

.install-section { padding: 64px 0; background: var(--blue); }
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 12px;
  font-size: 52px;
  line-height: 1.15;
  letter-spacing: 0;
}

.downloads {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.software {
  display: flex;
  min-height: 350px;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(24, 37, 56, .06);
}

.software-heading {
  display: flex;
  align-items: center;
  gap: 14px;
}

.software-heading h2 {
  margin-bottom: 4px;
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: 0;
}

.software-heading p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
}

.software-meta {
  display: grid;
  gap: 9px;
  margin: 28px 0 25px;
}

.software-meta div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid #edf1f5;
  font-size: 13px;
}

.software-meta dt { color: var(--muted); }
.software-meta dd { margin: 0; font-weight: 700; text-align: right; }

.download-button {
  display: flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 11px;
  margin-top: auto;
  padding: 0 18px;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

.download-button:hover, .download-button:focus-visible { background: var(--blue-dark); }
.download-button span { color: var(--orange); font-size: 20px; }

.install-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  color: #fff;
}

.install-note h2 { margin-bottom: 7px; font-size: 24px; letter-spacing: 0; }
.install-note p { margin-bottom: 0; color: #e6f4fb; font-size: 13px; }
.install-note .download-button { min-width: 170px; margin: 0; background: var(--ink); }

.site-footer {
  padding: 24px 0;
  background: var(--ink);
  color: #b8c4d1;
  font-size: 12px;
}

@media (max-width: 700px) {
  .wrap { width: min(calc(100% - 32px), 520px); }
  .site-nav { display: none; }
  .hero-inner, .split-heading, .tool-layout, .faq-layout { grid-template-columns: 1fr; gap: 42px; }
  .hero-inner { min-height: 0; padding: 50px 0 64px; }
  h1 { font-size: 36px; }
  .hero-lead { font-size: 16px; }
  .hero-product { min-height: 280px; }
  .downloads { grid-template-columns: 1fr; }
  .software { min-height: 0; }
  .capability-grid, .workflow-grid { grid-template-columns: 1fr; }
  .capability { min-height: 240px; }
  .workflow-step { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .install-note { align-items: stretch; flex-direction: column; }
  .install-note .download-button { width: 100%; }
}