:root {
  color-scheme: light;
  --page: #f7fbff;
  --white: #ffffff;
  --ink: #14212e;
  --muted: #657487;
  --soft: #91a1b3;
  --blue: #2f8fe8;
  --blue-dark: #1769aa;
  --green: #24b26b;
  --amber: #d99122;
  --coral: #d95b52;
  --line: #dbe8f3;
  --panel: #eef6fd;
  --shadow: 0 20px 48px rgba(23, 72, 112, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 max(24px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid rgba(219, 232, 243, 0.82);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  border: 2px solid var(--blue);
  background: #f7fbff;
  color: var(--blue);
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 8px 20px rgba(47, 143, 232, 0.16);
}

.brand strong,
.brand span {
  display: block;
  line-height: 1.08;
}

.brand strong {
  color: var(--ink);
  font-size: 17px;
  font-weight: 800;
}

.brand > span > span {
  margin-top: 3px;
  color: var(--soft);
  font-size: 11px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #466073;
  font-size: 15px;
  font-weight: 700;
}

.nav-links a {
  display: inline-flex;
  min-height: 64px;
  align-items: center;
  border-bottom: 3px solid transparent;
}

.nav-links a:hover {
  border-bottom-color: var(--blue);
  color: var(--blue-dark);
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid #c9dceb;
  border-radius: 8px;
  padding: 0 18px;
  background: var(--white);
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.app-card:hover,
.policy-card a:hover,
.quick-strip a:hover {
  transform: translateY(-1px);
}

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

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 44px;
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 82px 24px 56px;
  align-items: center;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: 56px;
  line-height: 1.06;
}

.hero-description {
  margin-bottom: 0;
  color: #344b5f;
  font-size: 19px;
  line-height: 1.82;
}

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

.workspace-panel {
  overflow: hidden;
  border: 1px solid #cfe1f0;
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #f1f8fe);
}

.panel-header span {
  display: block;
  margin-bottom: 5px;
  color: var(--soft);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.panel-header strong {
  font-size: 26px;
}

.panel-header b {
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(36, 178, 107, 0.12);
  color: #117442;
  font-size: 13px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.status-grid div {
  padding: 18px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.status-grid div:nth-child(2n) {
  border-right: 0;
}

.status-grid div:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.status-grid span {
  display: block;
  margin-bottom: 5px;
  color: var(--soft);
  font-size: 12px;
  font-weight: 800;
}

.status-grid strong {
  font-size: 16px;
}

.control-list {
  padding: 12px 20px 20px;
}

.control-list div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.control-list div:last-child {
  border-bottom: 0;
}

.control-list b,
.control-list span {
  display: block;
}

.control-list b {
  margin-bottom: 4px;
}

.control-list span {
  color: var(--muted);
  line-height: 1.58;
}

.quick-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.quick-strip a {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  background: var(--white);
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 850;
}

.section {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 76px 24px;
}

.section-head {
  max-width: 780px;
  margin: 0 auto 32px;
  text-align: center;
}

.section-head h2,
.section-copy h2 {
  margin-bottom: 14px;
  font-size: 36px;
  line-height: 1.18;
}

.section-head p,
.section-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.78;
}

.reason-grid,
.app-grid,
.policy-grid,
.link-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

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

.reason-card,
.app-card,
.policy-card,
.text-card,
.link-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 22px;
  box-shadow: 0 12px 28px rgba(23, 72, 112, 0.055);
}

.reason-card h3,
.app-card strong,
.policy-card h3,
.link-card h3 {
  display: block;
  margin-bottom: 9px;
  color: var(--blue-dark);
  font-size: 18px;
}

.reason-card p,
.app-card span,
.policy-card p,
.link-card p,
.text-card p,
.text-card li {
  color: var(--muted);
  line-height: 1.72;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 42px;
  align-items: center;
}

.section-copy {
  max-width: 540px;
}

.info-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.info-table div {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 18px;
  padding: 19px 22px;
  border-bottom: 1px solid var(--line);
}

.info-table div:last-child {
  border-bottom: 0;
}

.info-table span {
  color: var(--muted);
  line-height: 1.65;
}

.apps-section {
  width: 100%;
  max-width: none;
  background: #eef6fd;
}

.apps-section > * {
  width: min(1120px, 100%);
  margin-right: auto;
  margin-left: auto;
}

.app-card {
  min-height: 142px;
}

.policy-card a {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue-dark);
  font-weight: 850;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 44px 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
}

.site-footer p {
  max-width: 520px;
  margin-bottom: 0;
  line-height: 1.6;
}

.site-footer nav {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 9px 24px;
  color: var(--blue-dark);
  font-weight: 750;
}

.text-page main {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 50px 22px 80px;
}

.text-card {
  margin-bottom: 16px;
}

.text-card .lead {
  color: #334b5f;
  font-size: 18px;
  line-height: 1.78;
}

.text-card a {
  color: var(--blue-dark);
  font-weight: 800;
}

.text-card h1 {
  margin-bottom: 14px;
  font-size: 36px;
  line-height: 1.16;
}

.text-card h2 {
  margin-bottom: 12px;
  font-size: 24px;
}

.text-card h3 {
  margin: 18px 0 8px;
  color: var(--ink);
  font-size: 18px;
}

.text-card ul {
  margin: 12px 0 0;
  padding-left: 22px;
}

.text-card li + li {
  margin-top: 7px;
}

.reveal {
  opacity: 1;
  transform: translateY(8px);
  transition: transform 360ms ease;
}

.reveal.is-visible {
  transform: translateY(0);
}

@media (max-width: 980px) {
  .site-header {
    padding-right: 18px;
    padding-left: 18px;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .reason-grid,
  .app-grid,
  .policy-grid,
  .link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  .site-header {
    gap: 12px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 22px;
  }

  .brand > span > span {
    display: none;
  }

  .site-header > .button {
    min-width: 92px;
    padding: 0 12px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-description,
  .section-head p,
  .section-copy p {
    font-size: 16px;
  }

  .hero-actions,
  .quick-strip,
  .info-table div,
  .reason-grid,
  .app-grid,
  .policy-grid,
  .link-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .site-header > .button {
    width: auto;
  }

  .section {
    padding: 54px 18px;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}