:root {
  --sky: #0284c7;
  --sky-dark: #0369a1;
  --mint: #10b981;
  --mint-dark: #059669;
  --violet: #8b5cf6;
  --ink: #1e293b;
  --muted: #64748b;
  --line: #e2e8f0;
  --surface: #f8fafc;
  --white: #fff;
  --shadow: 0 14px 34px rgba(15, 23, 42, .07);
  --shadow-hover: 0 20px 44px rgba(2, 132, 199, .14);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.nav-wrap { min-height: 72px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.01em; white-space: nowrap; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 11px; color: #fff; background: linear-gradient(145deg, #0ea5e9, #6366f1); box-shadow: 0 8px 18px rgba(14, 165, 233, .24); }
.brand-mark svg { width: 19px; height: 19px; }
.nav-links { display: flex; align-items: center; gap: 22px; margin-left: auto; color: var(--muted); font-size: 14px; }
.nav-links a { padding: 6px 0; transition: color .2s ease; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--sky); }
.outline-btn, .ghost-btn, .primary-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 12px; padding: 11px 17px; font-size: 14px; font-weight: 600; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.outline-btn { color: var(--sky-dark); border: 1px solid #7dd3fc; background: #fff; }
.outline-btn:hover, .ghost-btn:hover, .primary-btn:hover { transform: translateY(-2px); }
.outline-btn:hover { box-shadow: 0 8px 20px rgba(2,132,199,.12); background: #f0f9ff; }
.primary-btn { color: #fff; background: var(--mint); box-shadow: 0 9px 20px rgba(16,185,129,.2); }
.primary-btn:hover { background: var(--mint-dark); box-shadow: 0 13px 26px rgba(16,185,129,.26); }
.ghost-btn { color: var(--sky-dark); border: 1px solid #bae6fd; background: rgba(255,255,255,.62); }
.menu-toggle { display: none; margin-left: auto; border: 0; color: var(--ink); background: transparent; cursor: pointer; }

.hero { position: relative; overflow: hidden; padding: 76px 0 88px; background: linear-gradient(118deg, #f0f9ff 0%, #f5f3ff 52%, #ecfeff 100%); }
.hero::after { content: ""; position: absolute; width: 500px; height: 260px; right: -130px; top: -100px; border-radius: 50%; background: rgba(125,211,252,.18); filter: blur(4px); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); align-items: center; gap: 58px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 11px; border-radius: 999px; color: #6d28d9; background: rgba(139,92,246,.1); font-size: 13px; font-weight: 600; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--violet); }
h1 { margin: 18px 0 18px; max-width: 620px; font-size: clamp(40px, 5vw, 62px); line-height: 1.15; letter-spacing: -.045em; font-weight: 700; }
.hero-copy { max-width: 610px; margin: 0; color: var(--muted); font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-note { display: flex; align-items: center; gap: 10px; margin-top: 22px; color: #475569; font-size: 13px; }
.hero-note svg { color: var(--mint-dark); }
.hero-visual { min-height: 370px; display: flex; align-items: center; justify-content: center; }
.network-card { width: min(100%, 470px); padding: 19px; border: 1px solid rgba(255,255,255,.8); border-radius: 26px; background: rgba(255,255,255,.74); box-shadow: var(--shadow); }
.network-top { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 12px; }
.live { display: inline-flex; align-items: center; gap: 6px; color: var(--mint-dark); font-weight: 600; }
.live i { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 4px rgba(16,185,129,.12); }
.map-stage { position: relative; height: 275px; margin-top: 13px; overflow: hidden; border-radius: 18px; background: linear-gradient(135deg, #e0f2fe, #eef2ff); }
.map-stage svg { width: 100%; height: 100%; }
.map-label { position: absolute; display: grid; gap: 2px; padding: 10px 12px; border: 1px solid rgba(255,255,255,.9); border-radius: 13px; background: rgba(255,255,255,.86); box-shadow: 0 7px 18px rgba(30,41,59,.08); font-size: 11px; }
.map-label strong { color: var(--ink); font-size: 13px; }
.map-label span { color: var(--muted); }
.label-sg { right: 14%; bottom: 21%; }
.label-hk { right: 33%; top: 19%; }
.label-tokyo { left: 11%; top: 21%; }

section { padding: 92px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 34px; }
.section-kicker { margin: 0 0 8px; color: var(--sky); font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); line-height: 1.25; letter-spacing: -.03em; }
.section-intro { max-width: 480px; margin: 0; color: var(--muted); font-size: 15px; }
.advantage-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.advantage { min-height: 178px; padding: 22px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-align: center; transition: transform .24s ease, box-shadow .24s ease; }
.advantage:hover, .product-card:hover, .solution:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.icon-circle { width: 54px; height: 54px; margin: 0 auto 14px; display: grid; place-items: center; border-radius: 50%; color: var(--sky-dark); background: linear-gradient(145deg, #e0f2fe, #eef2ff); }
.icon-circle svg { width: 24px; height: 24px; }
.advantage h3 { margin: 0 0 5px; font-size: 16px; }
.advantage p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

.products { background: var(--surface); }
.product-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 18px; }
.product-card { grid-column: span 4; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 6px 18px rgba(15,23,42,.035); transition: transform .24s ease, box-shadow .24s ease; }
.product-card.featured { grid-column: span 5; border-color: #a7f3d0; background: linear-gradient(145deg, #ffffff, #f0fdf4); }
.product-card.wide { grid-column: span 7; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: end; }
.product-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; }
.product-card h3 { margin: 0; font-size: 21px; letter-spacing: -.02em; }
.tag { padding: 5px 9px; border-radius: 999px; color: #6d28d9; background: #f3e8ff; font-size: 11px; font-weight: 700; white-space: nowrap; }
.product-desc { margin: 8px 0 18px; color: var(--muted); font-size: 13px; }
.specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px; margin: 0 0 23px; }
.spec { display: grid; gap: 1px; }
.spec dt { color: var(--muted); font-size: 11px; }
.spec dd { margin: 0; font-size: 14px; font-weight: 600; }
.price-row { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.price { color: var(--ink); font-size: 26px; font-weight: 700; letter-spacing: -.03em; }
.price small { color: var(--muted); font-size: 12px; font-weight: 400; }
.product-cta { width: 100%; }
.all-products { margin-top: 28px; text-align: center; }

.solutions-grid { display: grid; gap: 18px; }
.solution { display: grid; grid-template-columns: 1.08fr 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: transform .24s ease, box-shadow .24s ease; }
.solution:nth-child(even) { grid-template-columns: 1fr 1.08fr; }
.solution:nth-child(even) .solution-art { order: 2; }
.solution-copy { padding: 30px 34px; }
.solution-copy h3 { margin: 0 0 9px; font-size: 23px; }
.solution-copy p { margin: 0; color: var(--muted); font-size: 14px; }
.solution-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.solution-meta span { padding: 5px 9px; border-radius: 8px; color: var(--sky-dark); background: #f0f9ff; font-size: 11px; font-weight: 600; }
.solution-art { min-height: 230px; display: grid; place-items: center; background: linear-gradient(135deg, #f0f9ff, #faf5ff); }
.solution-art svg { width: min(82%, 280px); height: auto; }

.faq { background: var(--surface); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; align-items: start; }
.faq-aside { padding: 26px; border-radius: 18px; background: linear-gradient(145deg, #e0f2fe, #f5f3ff); }
.faq-aside p { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 19px 0; cursor: pointer; list-style: none; font-size: 16px; font-weight: 600; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--sky); font-size: 22px; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { margin: -3px 30px 19px 0; color: var(--muted); font-size: 14px; }

.contact-band { padding: 52px 0; background: linear-gradient(110deg, #f0f9ff, #f5f3ff); }
.contact-wrap { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.contact-wrap p { margin: 8px 0 0; color: var(--muted); }
.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.site-footer { padding: 28px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-wrap { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
.footer-links { display: flex; gap: 18px; }
.footer-links a:hover { color: var(--sky); }

.page-hero { padding: 62px 0 54px; background: linear-gradient(118deg, #f0f9ff, #f5f3ff); }
.page-hero h1 { margin-bottom: 10px; font-size: clamp(36px, 5vw, 54px); }
.breadcrumb { color: var(--muted); font-size: 13px; }
.breadcrumb a { color: var(--sky-dark); }
.products-page { padding-top: 58px; }
.products-page .product-grid { margin-top: 0; }

@media (max-width: 980px) {
  .nav-links { gap: 14px; }
  .advantage-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { min-height: 320px; }
  .product-card, .product-card.featured, .product-card.wide { grid-column: span 6; }
  .faq-grid { gap: 34px; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 32px, 600px); }
  .nav-wrap { min-height: 64px; }
  .menu-toggle { display: inline-flex; padding: 8px; }
  .nav-links { position: absolute; left: 16px; right: 16px; top: 62px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: var(--shadow); }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 11px 12px; }
  .nav-wrap > .outline-btn { display: none; }
  h1 { font-size: 42px; }
  .hero { padding: 58px 0 64px; }
  .hero-copy { font-size: 16px; }
  section { padding: 68px 0; }
  .section-head { display: block; margin-bottom: 26px; }
  .section-intro { margin-top: 12px; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .product-card, .product-card.featured, .product-card.wide { grid-column: 1 / -1; }
  .product-card.wide { display: block; }
  .solution, .solution:nth-child(even) { grid-template-columns: 1fr; }
  .solution:nth-child(even) .solution-art { order: 0; }
  .solution-art { min-height: 190px; }
  .faq-grid { grid-template-columns: 1fr; }
  .contact-wrap, .footer-wrap { display: block; }
  .contact-actions { margin-top: 18px; }
  .footer-links { margin-top: 12px; }
}
@media (max-width: 420px) {
  .brand { font-size: 14px; }
  .advantage-grid { gap: 10px; }
  .advantage { padding: 18px 10px; }
  .hero-actions a { width: 100%; }
}