:root {
  color-scheme: light;
  --ink: #0f1720;
  --muted: #526070;
  --soft: #eef4f8;
  --surface: #ffffff;
  --line: #dce5ec;
  --navy: #0f2742;
  --blue: #145d96;
  --cyan: #00a9c8;
  --green: #0f8f7a;
  --amber: #f2b84b;
  --shadow: 0 18px 42px rgba(15, 39, 66, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fbfdff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(0, 169, 200, 0.55);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 20;
  transform: translateY(-140%);
  padding: 10px 14px;
  color: #fff;
  background: var(--navy);
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 253, 255, 0.94);
  border-bottom: 1px solid rgba(220, 229, 236, 0.86);
  backdrop-filter: blur(12px);
}

.nav-shell {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}

.brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand span,
.footer-brand {
  color: var(--navy);
  font-size: 1.04rem;
  font-weight: 800;
  letter-spacing: 0;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.desktop-nav a,
.login-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: #334153;
  font-size: 0.95rem;
  border-radius: 6px;
}

.desktop-nav a:hover,
.login-link:hover {
  color: var(--blue);
  background: rgba(20, 93, 150, 0.08);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 8px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  line-height: 1.2;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
  touch-action: manipulation;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 10px 24px rgba(20, 93, 150, 0.24);
}

.button-primary:hover {
  background: #0e4d81;
}

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

.button-secondary:hover {
  border-color: #b9c9d6;
  background: #f6fafc;
}

.button-small {
  min-height: 40px;
  padding: 10px 14px;
  font-size: 0.92rem;
}

.mobile-menu {
  margin-left: auto;
  position: relative;
}

.mobile-menu summary {
  width: 44px;
  height: 44px;
  display: grid;
  place-content: center;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  list-style: none;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu summary span {
  width: 20px;
  height: 2px;
  background: var(--navy);
  border-radius: 999px;
}

.mobile-menu nav {
  position: absolute;
  right: 0;
  top: 56px;
  width: min(86vw, 320px);
  display: grid;
  gap: 4px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.mobile-menu nav a {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 10px 12px;
  color: #243244;
  border-radius: 6px;
}

.mobile-menu nav a:hover {
  background: var(--soft);
}

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(15, 39, 66, 0.98) 0%, rgba(20, 93, 150, 0.94) 54%, rgba(15, 143, 122, 0.9) 100%),
    url("../image/home-hero2.jpg") center / cover;
}

.hero-grid {
  min-height: clamp(620px, 88dvh, 760px);
  display: grid;
  align-items: center;
  gap: 36px;
  padding: 96px 0 54px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow,
.section-dark .eyebrow,
.cta-section .eyebrow {
  color: #8eeedc;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(2.35rem, 8vw, 5rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.3;
}

.hero-lead {
  max-width: 660px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

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

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 620px;
  margin: 36px 0 0;
}

.hero-metrics div {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.hero-metrics dt {
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 800;
  line-height: 1.1;
}

.hero-metrics dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.9rem;
}

.hero-visual {
  position: relative;
  align-self: end;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.route-panel {
  position: absolute;
  right: 14px;
  bottom: 14px;
  width: min(260px, calc(100% - 28px));
  padding: 14px;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.93);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.16);
}

.route-panel span,
.route-panel small {
  display: block;
  color: var(--muted);
}

.route-panel strong {
  display: block;
  margin: 2px 0;
  font-size: 1.25rem;
}

.partner-strip {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.partner-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
  align-items: center;
  justify-items: center;
  padding: 22px 0;
}

.partner-list img {
  max-height: 30px;
  object-fit: contain;
  opacity: 0.68;
  filter: grayscale(1);
}

.notice-band {
  color: #fff;
  background: var(--navy);
}

.notice-inner {
  display: grid;
  gap: 14px;
  align-items: center;
  padding: 20px 0;
}

.notice-inner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
}

.notice-inner a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #fff;
  font-weight: 700;
}

.section {
  padding: clamp(64px, 9vw, 108px) 0;
}

.section-muted {
  background: var(--soft);
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 36px;
  text-align: center;
}

.section-heading p {
  color: var(--muted);
  font-size: 1.05rem;
}

.align-left {
  margin-left: 0;
  text-align: left;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.device-pill {
  min-height: 64px;
  display: grid;
  place-items: center;
  padding: 16px;
  color: var(--navy);
  font-weight: 800;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-layout,
.network-layout,
.support-grid,
.plan-grid,
.cta-inner {
  display: grid;
  gap: 28px;
}

.feature-grid {
  display: grid;
  gap: 14px;
}

.feature-card {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(15, 39, 66, 0.06);
}

.feature-card img {
  margin-bottom: 18px;
}

.feature-card p,
.network-copy p,
.plan-card p,
.site-footer p {
  color: var(--muted);
}

.network-map {
  display: grid;
  place-items: center;
  min-height: 260px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.location-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.location-tags span {
  padding: 8px 12px;
  color: var(--blue);
  font-weight: 700;
  background: rgba(20, 93, 150, 0.08);
  border: 1px solid rgba(20, 93, 150, 0.16);
  border-radius: 999px;
}

.section-dark {
  color: #fff;
  background: linear-gradient(135deg, #0f2742 0%, #123b5f 58%, #0f6f64 100%);
}

.section-dark h2,
.section-dark .plan-card strong {
  color: #fff;
}

.section-dark p {
  color: rgba(255, 255, 255, 0.78);
}

.plan-card {
  padding: 24px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.plan-card span {
  color: #8eeedc;
  font-weight: 800;
}

.plan-card strong {
  display: block;
  margin: 10px 0;
  font-size: 1.6rem;
  line-height: 1.1;
}

.plan-card a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #fff;
  font-weight: 800;
}

.is-highlighted {
  background: rgba(242, 184, 75, 0.16);
  border-color: rgba(242, 184, 75, 0.46);
}

.resource-links {
  display: grid;
  gap: 10px;
}

.resource-links a {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  color: var(--navy);
  font-weight: 800;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.resource-links a::after {
  content: "→";
  color: var(--green);
}

.cta-section {
  padding: 56px 0;
  color: #fff;
  background: var(--navy);
}

.cta-section h2 {
  max-width: 720px;
  color: #fff;
}

.site-footer {
  padding: 46px 0 24px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  gap: 28px;
}

.site-footer h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.footer-logo {
  margin-bottom: 10px;
  object-fit: contain;
}

.site-footer nav {
  display: grid;
  gap: 8px;
  align-content: start;
}

.site-footer a {
  min-height: 30px;
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--blue);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  margin: 0;
}

@media (min-width: 560px) {
  .partner-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .device-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

@media (min-width: 820px) {
  .desktop-nav,
  .header-actions {
    display: flex;
  }

  .mobile-menu {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
    padding-top: 112px;
  }

  .notice-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .feature-layout {
    grid-template-columns: 0.82fr 1.18fr;
    align-items: start;
  }

  .network-layout {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .plan-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(220px, 0.65fr) minmax(220px, 0.65fr);
    align-items: stretch;
  }

  .support-grid {
    grid-template-columns: 0.92fr 1.08fr;
    align-items: start;
  }

  .cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1.2fr repeat(3, 1fr);
  }
}

@media (max-width: 520px) {
  .shell {
    width: min(100% - 24px, 1120px);
  }

  .nav-shell {
    min-height: 64px;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 58px;
  }

  .hero-actions .button,
  .cta-inner .button {
    width: 100%;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    padding: 12px;
  }

  .route-panel {
    position: static;
    width: auto;
    margin-top: 12px;
  }

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

  .notice-inner {
    padding: 18px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

.page-hero{color:#fff;background:linear-gradient(135deg,rgba(15,39,66,.98),rgba(20,93,150,.94) 58%,rgba(15,143,122,.9)),url("../image/home-hero2.jpg") center/cover}.page-hero-grid{min-height:clamp(360px,54dvh,560px);display:grid;align-items:center;gap:28px;padding:78px 0}.page-hero-card{display:none;padding:28px;border:1px solid rgba(255,255,255,.22);border-radius:8px;background:rgba(255,255,255,.1)}.page-hero-card strong,.page-hero-card span{display:block}.page-hero-card strong{font-size:1.4rem}.page-hero-card span{color:rgba(255,255,255,.78)}.card-grid{display:grid;gap:16px}.info-card,.price-card,.app-card,.article-card{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 24px rgba(15,39,66,.06)}.info-card{padding:24px}.info-card img{margin-bottom:18px}.text-link{min-height:44px;display:inline-flex;align-items:center;color:var(--blue);font-weight:800}.text-link:hover{text-decoration:underline}.split-stat{display:grid;gap:24px;align-items:center}.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0}.metric-grid div{padding:22px;background:#fff;border:1px solid var(--line);border-radius:8px}.metric-grid dt{font-size:clamp(1.6rem,5vw,2.7rem);font-weight:900;color:var(--blue);line-height:1}.metric-grid dd{margin:8px 0 0;color:var(--muted)}.timeline{display:grid;gap:16px}.timeline article{padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px}.timeline span{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;margin-bottom:14px;color:#fff;background:var(--blue);border-radius:999px;font-weight:900}.pricing-grid{display:grid;gap:16px}.price-card{padding:24px;display:grid;gap:14px;align-content:start}.price-card span{color:var(--green);font-weight:900}.price-card strong{font-size:clamp(1.7rem,5vw,2.8rem);line-height:1;color:var(--navy)}.price-card.featured{border-color:rgba(242,184,75,.6);box-shadow:0 18px 42px rgba(242,184,75,.18)}.app-grid{display:grid;gap:14px}.app-card,.article-card{display:flex;gap:16px;align-items:flex-start;padding:20px}.app-card img,.article-card img{flex:0 0 auto}.inline-actions{display:flex;flex-wrap:wrap;gap:12px}.blog-list{max-width:820px}.article-shell{display:grid;gap:28px;align-items:start}.article-aside{display:grid;gap:12px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:8px}.article-aside nav{display:grid;gap:6px}.article-aside nav a{min-height:42px;display:flex;align-items:center;padding:8px 10px;border-radius:6px;color:var(--muted);font-weight:700}.article-aside nav a:hover{color:var(--blue);background:var(--soft)}.article-body{min-width:0;padding:22px;background:#fff;border:1px solid var(--line);border-radius:8px}.article-body h2{margin-top:28px;font-size:clamp(1.35rem,3vw,2rem)}.article-body h2:first-child{margin-top:0}.article-body h3{margin-top:22px}.article-body p,.article-body li{color:#354254}.article-body p{margin-bottom:16px}.article-body ol,.article-body ul{padding-left:1.35rem;margin:0 0 18px}.article-body img{width:auto;max-width:100%;margin:16px auto;border:1px solid var(--line);border-radius:8px;box-shadow:0 14px 32px rgba(15,39,66,.1)}.article-body a{color:var(--blue);font-weight:700}.legal-note{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:.92rem}.site-footer .footer-brand{display:block;margin-bottom:8px}@media (min-width:700px){.card-grid,.pricing-grid,.app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.timeline{grid-template-columns:repeat(3,minmax(0,1fr))}.split-stat{grid-template-columns:.9fr 1.1fr}}@media (min-width:960px){.page-hero-grid{grid-template-columns:minmax(0,1fr) 340px}.page-hero-card{display:block}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.pricing-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-shell{grid-template-columns:240px minmax(0,1fr)}.article-aside{position:sticky;top:96px}}@media (max-width:520px){.page-hero-grid{padding:52px 0}.metric-grid{grid-template-columns:1fr}.app-card,.article-card{display:grid}.article-body{padding:16px}.article-body img{border-radius:6px}}