:root {
  --blue: #2563eb;
  --blue-hover: #1d4ed8;
  --blue-subtle: rgba(37, 99, 235, 0.06);
  --blue-border: rgba(37, 99, 235, 0.16);
  --sky: #0ea5e9;
  --cyan: #06b6d4;
  --heading: #0f172a;
  --text: #334155;
  --muted: #64748b;
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
  --border-hover: #94a3b8;
  --gradient: linear-gradient(135deg, #0ea5e9 0%, #2563eb 60%, #1d4ed8 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px -6px rgba(15, 23, 42, 0.08), 0 4px 8px -4px rgba(15, 23, 42, 0.03);
  --shadow-glow: 0 0 24px -4px rgba(37, 99, 235, 0.25);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  font: inherit;
}

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

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

h1,
h2,
h3 {
  color: var(--heading);
  letter-spacing: -0.025em;
}

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

.container {
  width: min(1240px, calc(100% - 80px));
  margin-inline: auto;
}

.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 10px 22px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.button .icon {
  width: 16px;
  height: 16px;
  transition: transform .2s ease;
}

.button:hover .icon {
  transform: translateX(2px);
}

.button:hover {
  transform: translateY(-2px);
}

.primary {
  background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
  color: white;
  border-color: #1d4ed8;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.primary:hover {
  background: linear-gradient(180deg, #2563eb 0%, #1d4ed8 100%);
  box-shadow: 0 8px 22px -4px rgba(37, 99, 235, 0.35);
  border-color: #1e40af;
}

.secondary {
  background: white;
  border-color: var(--border);
  color: var(--heading);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.secondary:hover,
.outline:hover {
  background: #f8fafc;
  border-color: var(--border-hover);
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.06);
}

.small {
  min-height: 38px;
  padding: 8px 16px;
  font-size: 13px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 20px;
  z-index: 100;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  background: white;
  color: var(--heading);
}

.skip-link:focus {
  width: auto;
  height: auto;
  padding: 12px 16px;
  clip-path: none;
  border: 1px solid var(--border);
  border-radius: 8px;
}

#main:focus {
  outline: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: background .2s, border-color .2s, box-shadow .2s;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--border);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
}

.header-inner {
  height: 70px;
  display: flex;
  align-items: center;
  gap: 70px;
}

.brand {
  width: 169px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
}

.nav-links {
  display: flex;
  gap: 8px;
  margin-inline: auto;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: #475569;
  padding: 7px 14px;
  border-radius: 8px;
  transition: all .15s ease;
}

.nav-links a:hover {
  color: var(--heading);
  background: rgba(241, 245, 249, 0.8);
}

.nav-links a.active {
  color: var(--blue);
  background: rgba(37, 99, 235, 0.08);
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-left: 36px;
}

.login {
  font-size: 14px;
  font-weight: 500;
  color: #475569;
  transition: color .15s;
}

.login:hover {
  color: var(--blue);
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  background-color: #f8fafc;
  background-image:
    radial-gradient(ellipse at 85% 20%, rgba(37, 99, 235, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 15% 75%, rgba(14, 165, 233, 0.05) 0%, transparent 45%),
    radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
  background-size: 100% 100%, 100% 100%, 28px 28px;
}

.hero-inner {
  min-height: 681px;
  display: grid;
  grid-template-columns: 1.03fr 1fr;
  align-items: center;
  gap: 44px;
  padding-block: 60px 72px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px 5px 12px;
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  width: fit-content;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-dot 2.2s infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.hero h1 {
  font-size: 54px;
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--heading);
}

.brand-line {
  display: block;
  font-size: 24px;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  font-weight: 600;
  color: #475569;
}

.brand-line>span {
  font-size: 22px;
  font-weight: 500;
  margin-left: 6px;
  color: #64748b;
}

.blue-text {
  background: linear-gradient(135deg, #2563eb 0%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  max-width: 480px;
  line-height: 1.85;
  font-size: 15px;
  margin-top: 24px;
  color: #475569;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.trust-list {
  display: flex;
  gap: 20px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
  font-size: 12px;
  color: #64748b;
}

.trust-list li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.trust-list .icon {
  width: 14px;
  height: 14px;
  color: #10b981;
}

.hero-footnote {
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  padding-block: 21px;
  font-size: 11px;
  color: #64748b;
}

.hero-footnote span:last-child {
  font-size: 10px;
  letter-spacing: 1.8px;
  color: var(--muted);
  font-weight: 500;
}

.network-visual {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.07);
  margin-top: 4px;
  overflow: hidden;
  transform: rotate(-0.5deg);
}

.visual-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid #f1f5f9;
  font-size: 11px;
  letter-spacing: 1.2px;
  font-weight: 600;
  color: var(--muted);
}

.visual-heading>span:first-child {
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-label {
  background: #f1f5f9;
  color: #475569;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 500;
}

.topology {
  position: relative;
  height: 380px;
  overflow: hidden;
}

.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px dashed rgba(203, 213, 225, 0.6);
  pointer-events: none;
}

.orbit-one {
  width: 240px;
  height: 240px;
}

.orbit-two {
  width: 420px;
  height: 420px;
}

.network-paths {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.network-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  background: white;
  border: 1px solid #dbeafe;
  box-shadow: 0 8px 24px -4px rgba(37, 99, 235, 0.15);
  border-radius: 16px;
  padding: 16px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 148px;
}

.network-core>.network-brand-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 6px;
}

.network-core strong {
  font-size: 13px;
  color: var(--heading);
  font-weight: 650;
}

.network-core>span {
  font-size: 10px;
  color: var(--muted);
  margin-top: 2px;
}

.node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 14px -2px rgba(15, 23, 42, 0.05);
  backdrop-filter: blur(8px);
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 123px;
  z-index: 3;
}

.node:hover {
  border-color: var(--blue);
  transform: scale(1.05);
  box-shadow: 0 8px 20px -4px rgba(37, 99, 235, 0.18);
}

.node-hk {
  left: 5%;
  top: 15%;
}

.node-jp {
  right: 4%;
  top: 12%;
}

.node-us {
  left: 2%;
  bottom: 17%;
}

.node-sg {
  right: 3%;
  bottom: 13%;
}

.node-tw {
  left: 6%;
  top: 48%;
}

.node-kr {
  right: 5%;
  top: 48%;
}

.node-mark {
  font-size: 10px;
  background: #eff6ff;
  color: var(--blue);
  border: 1px solid #dbeafe;
  border-radius: 8px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.node strong,
.node div>span {
  display: block;
}

.node strong {
  font-size: 12px;
  color: var(--heading);
  font-weight: 600;
}

.node div>span {
  font-size: 10px;
  color: var(--muted);
}

.node i {
  width: 5px;
  height: 5px;
  background: #10b981;
  border-radius: 50%;
  margin-left: auto;
  box-shadow: 0 0 6px #10b981;
}

.network-bottom {
  padding: 14px 20px;
  border-top: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: #475569;
  background: #fafbfc;
}

.network-bottom>div {
  display: flex;
  gap: 8px;
  align-items: center;
  font-weight: 500;
}

.network-bottom .icon {
  width: 16px;
  height: 16px;
  color: var(--blue);
}

.network-bottom b {
  font-weight: 600;
  color: var(--blue);
  margin: 0 3px;
}

.network-caption {
  font-size: 10px;
  color: var(--muted);
}

.section {
  padding: 96px 0;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 40px;
}

.section-label {
  font-size: 11px;
  letter-spacing: 1.8px;
  color: var(--blue);
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
}

h2 {
  font-size: 32px;
  line-height: 1.3;
  letter-spacing: -.03em;
  font-weight: 700;
}

.section-heading>p {
  font-size: 14px;
  line-height: 1.8;
  color: #64748b;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02), 0 4px 12px -2px rgba(0, 0, 0, 0.02);
  transition: all .25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.feature-card:hover,
.price-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 14px 30px -8px rgba(15, 23, 42, 0.08);
}

.icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: #eff6ff;
  color: var(--blue);
  border: 1px solid #dbeafe;
  border-radius: 12px;
  margin-bottom: 20px;
  transition: all .25s ease;
}

.feature-card:hover .icon-box {
  background: var(--blue);
  color: white;
  border-color: var(--blue);
  transform: scale(1.06);
  box-shadow: 0 6px 16px -2px rgba(37, 99, 235, 0.3);
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 650;
  margin-bottom: 10px;
  color: var(--heading);
}

.feature-card p {
  font-size: 13px;
  line-height: 1.8;
  color: #64748b;
}

.section-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 24px;
}

.pricing-section {
  background: white;
  border-block: 1px solid var(--border);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.price-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px 22px;
  background: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
  transition: all .25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.plan-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  min-height: 26px;
}

.plan-title h3 {
  font-size: 16px;
  font-weight: 650;
}

.recommend-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: white;
  background: var(--blue);
  padding: 3px 10px;
  border-radius: 9999px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.price {
  font-size: 34px;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: var(--heading);
  white-space: nowrap;
  margin-top: 18px;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.currency {
  font-size: 18px;
  vertical-align: 3px;
  margin-right: 3px;
  letter-spacing: 0;
  font-weight: 600;
}

.period {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--muted);
  margin-left: 6px;
}

.traffic {
  border-block: 1px solid #f1f5f9;
  padding: 18px 0 16px;
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.traffic strong {
  font-size: 24px;
  font-weight: 700;
  color: var(--heading);
  line-height: 1.25;
  letter-spacing: -.02em;
}

.traffic strong span {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  color: #64748b;
}

.traffic>span {
  font-size: 12px;
  color: var(--muted);
}

.specs {
  margin: 18px 0 26px;
  font-size: 13px;
  display: grid;
  gap: 12px;
}

.specs>div {
  display: flex;
  justify-content: space-between;
  gap: 6px;
}

.specs dt {
  color: var(--muted);
}

.specs dd {
  margin: 0;
  color: var(--heading);
  font-weight: 550;
}

.specs>div:nth-child(n+3) dd {
  color: #64748b;
  font-weight: 400;
}

.price-card .button {
  margin-top: auto;
  width: 100%;
  font-size: 13px;
  gap: 8px;
  min-height: 42px;
  padding: 10px 12px;
}

.outline {
  border: 1px solid var(--border);
  color: var(--heading);
  background: #f8fafc;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.outline:hover {
  background: #eff6ff;
  border-color: var(--blue);
  color: var(--blue);
}

.recommended {
  border: 2px solid var(--blue);
  box-shadow: 0 12px 32px -6px rgba(37, 99, 235, 0.16), 0 2px 6px rgba(0, 0, 0, 0.04);
}

.pricing-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 24px;
}

.scenarios-section {
  background: #f8fafc;
}

.scenarios-section .feature-card {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.scenarios-section .icon-box {
  background: white;
  border: 1px solid #e2e8f0;
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 80px;
}

.faq-intro>p:not(.section-label) {
  font-size: 14px;
  margin-top: 20px;
  line-height: 1.8;
  color: #64748b;
}

.faq-aside {
  font-size: 12px;
  color: var(--muted);
  border-left: 2px solid #bfdbfe;
  padding-left: 14px;
  margin-top: 36px;
  line-height: 1.7;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  transition: all .2s ease;
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  list-style: none;
  cursor: pointer;
  padding: 20px 0;
  color: var(--heading);
  font-size: 15px;
  font-weight: 550;
  min-height: 60px;
  transition: color .2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--blue);
}

.faq-plus {
  height: 16px;
  width: 16px;
  position: relative;
  flex-shrink: 0;
}

.faq-plus:before,
.faq-plus:after {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 12px;
  height: 1.5px;
  background: #64748b;
  border-radius: 1px;
}

.faq-plus:after {
  transform: rotate(90deg);
  transition: transform .2s;
}

.faq-item[open] .faq-plus:after {
  transform: rotate(0);
}

.faq-item[open] summary {
  color: var(--blue);
}

.faq-answer {
  padding: 0 35px 22px 0;
  font-size: 14px;
  line-height: 1.85;
  color: #475569;
}

.faq-item[open] .faq-answer {
  animation: appear .2s ease;
}

@keyframes appear {
  from {
    opacity: 0;
    transform: translateY(-3px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.final-cta {
  padding: 0 0 84px;
}

.cta-panel {
  padding: 56px 54px;
  background:
    radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.2) 0%, transparent 40%),
    #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.35);
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
}

.cta-panel .section-label {
  color: #38bdf8;
  font-size: 11px;
  letter-spacing: 2px;
  font-weight: 700;
}

.cta-panel h2 {
  color: white;
  font-size: 32px;
  letter-spacing: -0.025em;
  font-weight: 700;
}

.cta-panel p:not(.section-label) {
  margin-top: 14px;
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.8;
}

.white-button {
  color: #0f172a;
  background: #ffffff;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid #ffffff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.white-button:hover {
  background: #f1f5f9;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

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

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 35px;
  padding-bottom: 37px;
}

.footer-brand img {
  width: 160px;
}

.footer-brand p {
  font-size: 12px;
  margin-top: 17px;
  line-height: 1.9;
  color: var(--muted);
}

.footer-nav {
  display: flex;
  gap: 24px;
  padding-top: 10px;
  font-size: 12px;
}

.footer-actions {
  display: flex;
  gap: 22px;
  padding-top: 10px;
  font-size: 12px;
}

.footer-actions a:last-child {
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-actions .icon {
  width: 14px;
  height: 14px;
}

.footer-nav a:hover,
.footer-actions a:hover {
  color: var(--blue);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 25px;
  padding: 21px 0;
  font-size: 12px;
  color: var(--muted);
}

@media(min-width:1500px) {
  .hero-inner {
    min-height: 721px;
  }
}

@media(max-width:1150px) {
  .container {
    width: calc(100% - 56px);
  }

  .header-inner {
    gap: 30px;
  }

  .nav-links {
    gap: 24px;
  }

  .hero-inner {
    gap: 28px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .brand-line {
    font-size: 22px;
  }

  .brand-line>span {
    font-size: 21px;
  }

  .network-core {
    width: 139px;
  }

  .node {
    min-width: 110px;
    gap: 7px;
    padding: 9px;
  }

  .node-hk {
    left: 2%;
  }

  .node-jp {
    right: 2%;
  }

  .node-us {
    left: 1%;
  }

  .node-sg {
    right: 1%;
  }

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

  .price {
    font-size: 35px;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .section-heading>p {
    max-width: 360px;
  }

  .faq-layout {
    gap: 45px;
  }

  .footer-nav {
    gap: 17px;
  }

  .footer-top {
    gap: 22px;
  }
}

@media(max-width:900px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    min-height: 650px;
  }

  .hero h1 {
    font-size: 39px;
  }

  .brand-line,
  .brand-line>span {
    font-size: 19px;
  }

  .hero-description {
    font-size: 13px;
  }

  .trust-list {
    gap: 10px;
    flex-wrap: wrap;
    font-size: 10px;
  }

  .topology {
    height: 330px;
  }

  .network-core {
    width: 123px;
    padding: 13px 8px;
  }

  .network-core>.network-brand-icon {
    width: 43px;
    height: 43px;
  }

  .network-core strong {
    font-size: 12px;
  }

  .network-core>span {
    font-size: 8px;
  }

  .node {
    min-width: 92px;
    padding: 8px 6px;
    gap: 6px;
  }

  .node-mark {
    width: 23px;
    height: 27px;
    font-size: 8px;
  }

  .node i {
    display: none;
  }

  .node div>span {
    font-size: 10px;
  }

  .node-hk {
    top: 9%;
    left: 5%;
  }

  .node-jp {
    top: 9%;
    right: 3%;
  }

  .node-us {
    bottom: 9%;
    left: 4%;
  }

  .node-sg {
    bottom: 9%;
    right: 3%;
  }

  .network-caption {
    display: none;
  }

  .network-bottom {
    justify-content: center;
  }

  .visual-heading {
    margin-inline: 14px;
    font-size: 8px;
    letter-spacing: 1px;
  }

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

  .section-heading {
    align-items: flex-start;
  }

  .section-heading>p {
    max-width: 300px;
  }

  h2 {
    font-size: 26px;
  }

  .nav-links {
    gap: 18px;
  }

  .nav-actions {
    margin-left: 20px;
    gap: 18px;
  }

  .brand {
    width: 145px;
  }

  .footer-top {
    flex-wrap: wrap;
  }

  .footer-brand {
    flex: 1 1 100%;
  }

  .footer-nav {
    padding-top: 0;
  }

  .footer-actions {
    padding-top: 0;
  }
}

@media(max-width:700px) {
  html {
    scroll-padding-top: 84px;
  }

  .container {
    width: calc(100% - 40px);
  }

  .header-inner {
    height: 66px;
    justify-content: space-between;
  }

  .brand {
    width: 150px;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    align-items: center;
    border: 1px solid var(--border);
    background: white;
    border-radius: 7px;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 18px;
    height: 1.5px;
    background: var(--heading);
    transition: transform .2s;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(3.75px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3.75px) rotate(-45deg);
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    padding: 12px 20px 20px;
    background: white;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 24px #0f172a08;
    max-height: calc(100dvh - 66px);
    overflow: auto;
  }

  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .nav-links a {
    padding: 11px 8px;
    min-height: 44px;
  }

  .nav-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    margin: 8px 0 0;
    gap: 7px;
    border-top: 1px solid var(--border);
    padding-top: 8px;
  }

  .login {
    padding: 11px 8px;
    min-height: 44px;
  }

  .nav-actions .button {
    min-height: 44px;
  }

  .hero-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 53px 0 66px;
    gap: 40px;
  }

  .eyebrow {
    font-size: 11px;
    margin-bottom: 23px;
  }

  .hero h1 {
    font-size: 43px;
    letter-spacing: -1.5px;
    line-height: 1.25;
  }

  .brand-line,
  .brand-line>span {
    font-size: 21px;
    letter-spacing: -.4px;
  }

  .brand-line {
    margin-bottom: 16px;
  }

  .hero-description {
    font-size: 14px;
    max-width: 470px;
    margin-top: 22px;
  }

  .hero-actions {
    margin-top: 26px;
  }

  .hero-actions .button {
    padding: 13px 22px;
    min-height: 48px;
  }

  .trust-list {
    gap: 15px;
    font-size: 10px;
    margin-top: 21px;
  }

  .network-visual {
    transform: none;
    margin: 7px 0 0;
    width: 100%;
    max-width: 490px;
    align-self: center;
  }

  .topology {
    height: 310px;
  }

  .visual-heading {
    padding: 15px 0;
    font-size: 9px;
  }

  .network-core {
    width: 136px;
    padding: 16px 10px;
  }

  .network-core>.network-brand-icon {
    width: 47px;
    height: 47px;
  }

  .node {
    min-width: 102px;
    padding: 8px;
    gap: 7px;
  }

  .node-hk {
    top: 9%;
    left: 4%;
  }

  .node-jp {
    right: 4%;
    top: 9%;
  }

  .node-us {
    bottom: 9%;
    left: 3%;
  }

  .node-sg {
    bottom: 9%;
    right: 3%;
  }

  .node-mark {
    width: 25px;
    height: 29px;
  }

  .node strong {
    font-size: 10px;
  }

  .network-bottom {
    padding: 13px;
  }

  .hero-footnote {
    padding: 17px 0;
    font-size: 10px;
  }

  .hero-footnote span:last-child {
    font-size: 7px;
    letter-spacing: .6px;
    max-width: 137px;
    text-align: right;
  }

  .section {
    padding: 62px 0;
  }

  .section-heading {
    display: block;
    margin-bottom: 27px;
  }

  .section-heading>p {
    margin-top: 15px;
    max-width: none;
    font-size: 13px;
  }

  .desktop-break {
    display: none;
  }

  .section-label {
    font-size: 9px;
    margin-bottom: 11px;
    letter-spacing: 1.4px;
  }

  h2 {
    font-size: 25px;
    letter-spacing: -.6px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .feature-card {
    padding: 24px;
    min-height: 0;
  }

  .icon-box {
    width: 40px;
    height: 40px;
    margin-bottom: 19px;
  }

  .feature-card h3 {
    font-size: 16px;
  }

  .feature-card p {
    font-size: 13px;
  }

  .section-note {
    line-height: 1.9;
    font-size: 12px;
    margin-top: 20px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .price-card {
    grid-column: auto;
    padding: 24px;
  }

  .plan-title h3 {
    font-size: 17px;
  }

  .price {
    font-size: 39px;
    margin-top: 16px;
  }

  .price .period {
    font-size: 12px;
  }

  .traffic {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin-top: 20px;
    padding: 16px 0;
  }

  .traffic strong {
    font-size: 25px;
  }

  .traffic>span {
    font-size: 12px;
  }

  .specs {
    font-size: 13px;
    margin-block: 18px 22px;
    gap: 12px;
  }

  .price-card .button {
    font-size: 13px;
    min-height: 46px;
  }

  .pricing-note {
    line-height: 1.9;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .faq-intro>p:not(.section-label) {
    margin-top: 15px;
    font-size: 13px;
  }

  .faq-intro>p br {
    display: none;
  }

  .faq-aside {
    margin-top: 19px;
  }

  .faq-aside br {
    display: none;
  }

  .faq-item summary {
    font-size: 13px;
    min-height: 65px;
    padding: 20px 0;
  }

  .faq-answer {
    padding-right: 20px;
    font-size: 14px;
  }

  .final-cta {
    padding-bottom: 58px;
  }

  .cta-panel {
    padding: 31px 25px;
    flex-direction: column;
    align-items: stretch;
    gap: 27px;
    border-radius: 17px;
  }

  .cta-panel h2 {
    font-size: 24px;
  }

  .cta-panel p:not(.section-label) {
    font-size: 12px;
  }

  .white-button {
    width: 100%;
    font-size: 13px;
  }

  .site-footer {
    padding-top: 35px;
  }

  .footer-top {
    gap: 24px;
    padding-bottom: 29px;
  }

  .footer-brand img {
    width: 150px;
  }

  .footer-brand p {
    font-size: 12px;
  }

  .footer-nav {
    gap: 22px;
    width: 100%;
    flex-wrap: wrap;
  }

  .footer-actions {
    gap: 28px;
  }

  .footer-nav a,
  .footer-actions a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .footer-top {
    row-gap: 8px;
  }

  .footer-brand {
    margin-bottom: 16px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    font-size: 12px;
    padding: 20px 0 27px;
  }
}

@media(max-width:360px) {
  .hero h1 {
    font-size: 37px;
  }

  .brand-line,
  .brand-line>span {
    font-size: 19px;
  }

  .trust-list {
    gap: 9px;
    font-size: 9px;
  }

  .hero-actions .button {
    padding-inline: 18px;
  }

  .hero-footnote span:last-child {
    max-width: 115px;
  }

  .node {
    min-width: 92px;
    padding: 6px;
  }

  .network-core {
    width: 121px;
  }

  .topology {
    height: 315px;
  }

  .footer-nav {
    gap: 19px;
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
}

/* Homepage hero: copy and an original image fill the first desktop screen. */
.hero {
  min-height: calc(100svh - 72px);
  display: grid;
  grid-template-rows: 1fr auto;
}

.hero .hero-inner {
  min-height: 0;
  padding-block: 44px;
}

.hero-banner {
  min-width: 0;
}

.hero-banner img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  mix-blend-mode: multiply;
}

/* The existing network diagram now has its own section after pricing. */
.coverage-section {
  background: radial-gradient(ellipse at 50% 55%, #edf5ff, transparent 65%), var(--bg);
}

.coverage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: 36px;
  margin-top: 44px;
  padding-bottom: 0;
}

.coverage-section .network-visual {
  width: 100%;
  max-width: none;
  margin: 0;
  transform: none;
}

.coverage-section .topology {
  height: 400px;
}

.coverage-section .network-core {
  width: 158px;
  padding: 18px 17px 13px;
}

.coverage-section .network-core>.network-brand-icon {
  width: 52px;
  height: 52px;
}

.coverage-section .network-core strong {
  font-size: 14px;
}

.coverage-section .network-core>span {
  font-size: 10px;
}

.coverage-note {
  margin-top: 26px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

@media(max-width:700px) {
  .hero {
    display: block;
    min-height: 0;
  }

  .hero .hero-inner {
    padding-block: 45px 30px;
    gap: 26px;
  }

  .hero-banner {
    width: 100%;
    max-width: 490px;
    align-self: center;
  }

  .coverage-layout {
    margin-top: 30px;
  }

  .coverage-section .topology {
    height: 330px;
  }

  .coverage-section .network-core {
    width: 130px;
    padding: 14px 9px;
  }

  .coverage-section .network-core>.network-brand-icon {
    width: 45px;
    height: 45px;
  }

  .coverage-section .network-core strong {
    font-size: 12px;
  }

  .coverage-section .network-core>span {
    font-size: 10px;
  }

  .coverage-note {
    margin-top: 24px;
    font-size: 12px;
  }
}

/* Full-width network visual: scale its contents alongside the outer card. */
@media(min-width:701px) {
  .coverage-section .topology {
    height: 420px;
  }

  .coverage-section .visual-heading {
    margin-inline: 30px;
    padding-block: 22px;
    font-size: 11px;
  }

  .coverage-section .network-core {
    width: 194px;
    padding: 24px 18px 20px;
    border-radius: 20px;
  }

  .coverage-section .network-core>.network-brand-icon {
    width: 64px;
    height: 64px;
  }

  .coverage-section .network-core strong {
    font-size: 17px;
  }

  .coverage-section .network-core>span {
    font-size: 11px;
  }

  .coverage-section .node {
    width: 168px;
    min-width: 168px;
    padding: 14px 16px;
    gap: 8px;
    border-radius: 13px;
  }

  .coverage-section .node strong {
    font-size: 14px;
  }

  .coverage-section .node div>span {
    font-size: 11px;
  }

  .coverage-section .node-mark {
    width: 36px;
    height: 40px;
    font-size: 12px;
  }

  .coverage-section .node-hk {
    left: 10%;
    top: 15%;
  }

  .coverage-section .node-jp {
    right: 10%;
    top: 15%;
  }

  .coverage-section .node-us {
    left: 10%;
    bottom: 15%;
  }

  .coverage-section .node-sg {
    right: 10%;
    bottom: 15%;
  }

  .coverage-section .orbit-one {
    width: 300px;
    height: 300px;
  }

  .coverage-section .orbit-two {
    width: 380px;
    height: 380px;
  }

  .coverage-section .network-bottom {
    padding: 18px 30px;
    font-size: 12px;
  }
}

/* Six regions balance the core in two symmetric columns. */
@media(min-width:701px) {
  .coverage-section .node-tw {
    left: 10%;
    top: 50%;
    transform: translateY(-50%);
  }

  .coverage-section .node-kr {
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
  }
}

/* Small screens keep the core above a readable two-column region array. */
@media(max-width:700px) {
  .coverage-section .topology {
    height: 384px;
  }

  .coverage-section .network-core {
    top: 79px;
  }

  .coverage-section .orbit {
    top: 36%;
  }

  .coverage-section .node {
    width: calc(50% - 22px);
    min-width: 0;
    min-height: 48px;
    padding: 8px;
    transform: none;
    bottom: auto;
  }

  .coverage-section .node-hk {
    left: 4%;
    right: auto;
    top: 172px;
  }

  .coverage-section .node-jp {
    right: 4%;
    left: auto;
    top: 172px;
  }

  .coverage-section .node-us {
    left: 4%;
    right: auto;
    top: 304px;
  }

  .coverage-section .node-sg {
    right: 4%;
    left: auto;
    top: 304px;
  }

  .coverage-section .node-tw {
    left: 4%;
    right: auto;
    top: 238px;
  }

  .coverage-section .node-kr {
    right: 4%;
    left: auto;
    top: 238px;
  }
}

.coverage-section .node div>span {
  white-space: nowrap;
}

/* Shared informational pages and footer links. */
.footer-info-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  padding: 0 0 20px;
  font-size: 13px;
}

.footer-info-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.footer-info-nav a:hover,
.footer-info-nav a[aria-current="page"] {
  color: var(--blue);
}

.info-main {
  min-height: calc(100svh - 72px);
  padding: 54px 0 80px;
}

.info-container {
  max-width: 900px;
}

.info-heading {
  padding: 28px 0 34px;
}

.info-heading h1 {
  font-size: 38px;
  line-height: 1.3;
  letter-spacing: -1px;
  font-weight: 600;
}

.info-heading>p:not(.section-label) {
  margin-top: 17px;
  font-size: 15px;
}

.info-date {
  display: block;
  margin-top: 16px;
  font-size: 12px;
  color: var(--muted);
}

.info-content {
  padding: 12px 36px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.info-section {
  padding: 26px 0;
}

.info-section+.info-section {
  border-top: 1px solid var(--border);
}

.info-section h2 {
  font-size: 19px;
  letter-spacing: 0;
  margin-bottom: 12px;
}

.info-section p {
  font-size: 14px;
  line-height: 1.95;
  overflow-wrap: anywhere;
}

.info-section a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.contact-email {
  font-size: 16px;
  font-weight: 500;
}

.contact-email a {
  text-decoration: none;
}

.contact-email a:hover,
.contact-email a:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

@media(max-width:700px) {
  .footer-info-nav {
    gap: 4px 22px;
    padding-bottom: 16px;
    font-size: 12px;
  }

  .info-main {
    padding: 25px 0 48px;
  }

  .info-heading {
    padding: 20px 0 27px;
  }

  .info-heading h1 {
    font-size: 30px;
  }

  .info-heading>p:not(.section-label) {
    font-size: 14px;
  }

  .info-content {
    padding: 5px 22px;
  }

  .info-section {
    padding: 23px 0;
  }

  .info-section h2 {
    font-size: 18px;
  }

  .contact-email {
    font-size: 16px;
  }
}

/* Center the shared footer copyright on all screen sizes. */
.footer-bottom {
  justify-content: center;
  align-items: center;
  text-align: center;
}

/* Compact, centered footer shared by the landing and information pages. */
.site-footer {
  padding-top: 24px;
}

.footer-info-nav {
  justify-content: center;
  text-align: center;
  padding-bottom: 18px;
}

/* Information pages navigate between pages and identify the current location. */
.info-page .nav-links {
  gap: 24px;
}

.info-page .nav-links a[aria-current="page"] {
  color: var(--blue);
  font-weight: 600;
}

.breadcrumbs ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.breadcrumbs a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

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

.breadcrumbs [aria-current="page"] {
  color: var(--heading);
}

.breadcrumb-divider {
  color: var(--muted);
}

.info-page .info-heading {
  padding-top: 18px;
}

@media(max-width:1150px) {
  .info-page .header-inner {
    gap: 24px;
  }

  .info-page .nav-links {
    gap: 18px;
  }

  .info-page .nav-actions {
    margin-left: 22px;
    gap: 18px;
  }
}

@media(max-width:700px) {
  .info-page .nav-links {
    gap: 0;
  }

  .info-page .nav-actions {
    margin-left: 0;
    gap: 7px;
  }

  .breadcrumbs ol {
    font-size: 12px;
  }
}

/* Shared header typography, including the mobile menu. */
.site-header .nav-actions .button {
  font-size: 16px;
}

.nav-links a,
.nav-actions a {
  white-space: nowrap;
}

@media(min-width:701px) and (max-width:900px) {

  .header-inner,
  .info-page .header-inner {
    gap: 16px;
  }

  .site-header .brand {
    width: 130px;
  }

  .nav-links,
  .info-page .nav-links {
    gap: 12px;
  }

  .nav-actions,
  .info-page .nav-actions {
    margin-left: 14px;
    gap: 12px;
  }

  .site-header .nav-actions .button {
    padding-inline: 12px;
    gap: 10px;
  }
}

/* YFCloud brand adaptation */
.brand { width: 168px; }
.brand img { width: 100%; height: auto; }
.hero { background: radial-gradient(ellipse at 79% 38%, #e4f4ff 0%, transparent 52%), var(--bg); }
.hero .brand-line { color: #334155; }
.hero .brand-line > span { color: var(--blue); letter-spacing: .2px; }
.hero-footnote { color: #4b6780; }
@media (max-width: 700px) { .brand { width: 145px; } }