/* ============ ONE LINK — global.one-link.net ============ */
:root {
  --blue-900: #071c3c;
  --blue-800: #0a2a5e;
  --blue-700: #0d3a80;
  --blue-600: #1252b0;
  --blue-500: #1a6ae0;
  --blue-400: #3b8bff;
  --cyan-400: #2fd0e8;
  --cyan-300: #6fe3f2;
  --ink: #10192b;
  --ink-2: #3c4a61;
  --ink-3: #6b7a92;
  --line: #e3e9f2;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-blue: #f0f5fd;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(7, 28, 60, 0.10);
  --shadow-sm: 0 4px 18px rgba(7, 28, 60, 0.07);
  --max: 1200px;
  --font: "Helvetica Neue", "Segoe UI", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
ul { list-style: none; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; width: 100%;
  padding: 0 20px 0 12px; /* logo flush to the far left */
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 46px; height: 46px;
  object-fit: contain; display: block;
}
.site-footer .logo-mark { filter: brightness(0) invert(1); }
.logo-text { line-height: 1.15; }
.logo-text .en { font-weight: 800; font-size: 18px; color: var(--blue-900); letter-spacing: 1px; }
.logo-text .cn { font-size: 11px; color: var(--ink-3); letter-spacing: 0.4px; }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 16px; border-radius: 8px;
  color: var(--ink-2); font-size: 15px; font-weight: 500;
  transition: all 0.2s;
}
.main-nav a:hover { color: var(--blue-600); background: var(--bg-blue); }
.main-nav a.active { color: var(--blue-600); font-weight: 700; }

/* Dropdown: Services */
.nav-dropdown { position: relative; }
.nav-dropdown > .drop-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px; cursor: pointer;
  color: var(--ink-2); font-size: 15px; font-weight: 500;
  background: none; border: none; font-family: var(--font);
  line-height: 1.45; margin: 0; vertical-align: middle;
  transition: all 0.2s;
}
.nav-dropdown > .drop-toggle::after {
  content: ""; width: 7px; height: 7px; margin-left: 2px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px); transition: transform 0.2s;
}
.nav-dropdown:hover > .drop-toggle,
.nav-dropdown.open > .drop-toggle { color: var(--blue-600); background: var(--bg-blue); }
.nav-dropdown.active > .drop-toggle { color: var(--blue-600); font-weight: 700; }
.dropdown-menu {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 290px; background: #fff;
  border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all 0.22s; z-index: 110;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu { opacity: 1; visibility: visible; transform: none; }
.nav-dropdown:hover > .drop-toggle::after,
.nav-dropdown.open > .drop-toggle::after { transform: rotate(225deg) translateY(-2px); }
.dropdown-menu a {
  display: block; padding: 11px 14px; border-radius: 8px;
  color: var(--ink-2); font-size: 14.5px; font-weight: 500;
}
.dropdown-menu a:hover { background: var(--bg-blue); color: var(--blue-600); }
.dropdown-menu a .d-label { display: block; font-weight: 700; color: var(--blue-900); font-size: 14.5px; }
.dropdown-menu a:hover .d-label { color: var(--blue-600); }
.dropdown-menu a .d-desc { display: block; font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }
.dropdown-menu a.active .d-label { color: var(--blue-600); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--blue-900); margin: 5px 0; border-radius: 2px; transition: 0.25s; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(47, 208, 232, 0.22), transparent 60%),
    radial-gradient(900px 500px at 8% 110%, rgba(59, 139, 255, 0.25), transparent 55%),
    linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 55%, var(--blue-700) 100%);
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; padding: 110px 0 130px; max-width: 820px; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--cyan-300); font-weight: 600;
  border: 1px solid rgba(111, 227, 242, 0.35);
  padding: 6px 14px; border-radius: 100px; margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800; line-height: 1.12; letter-spacing: -0.5px;
  margin-bottom: 22px;
}
.hero h1 .accent {
  background: linear-gradient(90deg, var(--cyan-300), var(--blue-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: 19px; color: rgba(255,255,255,0.82); max-width: 640px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Page hero (subpages) */
.page-hero {
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: #fff; padding: 76px 0 66px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .crumb { font-size: 13px; color: rgba(255,255,255,0.6); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 14px; }
.page-hero .crumb a { color: var(--cyan-300); }
.page-hero h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 800; letter-spacing: -0.3px; }
.page-hero p { margin-top: 14px; color: rgba(255,255,255,0.8); max-width: 720px; font-size: 17px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 10px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: all 0.22s; border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  color: #fff; box-shadow: 0 8px 24px rgba(26, 106, 224, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(26, 106, 224, 0.45); }
.btn-ghost { border-color: rgba(255,255,255,0.4); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.btn-outline { border-color: var(--blue-500); color: var(--blue-600); background: #fff; }
.btn-outline:hover { background: var(--bg-blue); }

/* ---------- Sections ---------- */
.section { padding: 90px 0; }
.section.soft { background: var(--bg-soft); }
.section.blue { background: var(--bg-blue); }
.section.deep {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 55%, var(--blue-700) 100%);
  color: #fff; position: relative; overflow: hidden;
}
.section.deep::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(rgba(111,227,242,.10) 1px, transparent 1px);
  background-size: 26px 26px; pointer-events: none;
}
.section.deep .container { position: relative; z-index: 1; }
.section.deep h2 { color: #fff; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .kicker {
  font-size: 13px; font-weight: 700; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--blue-500); margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; letter-spacing: -0.3px; color: var(--blue-900); line-height: 1.2; }
.section-head p { margin-top: 14px; color: var(--ink-3); font-size: 16.5px; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 28px;
  transition: all 0.25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.card .icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan-400));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 24px;
}
.card h3 { font-size: 19px; font-weight: 700; color: var(--blue-900); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-2); }
.card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-weight: 600; font-size: 14.5px; }
.card .more:hover { gap: 10px; }
.card .more { transition: gap 0.2s; }

/* Service pillar cards on home */
.pillar {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
  transition: all 0.25s;
}
.pillar::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  opacity: 0; transition: opacity 0.25s;
}
.pillar:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.pillar:hover::before { opacity: 1; }
.pillar .num { font-size: 13px; font-weight: 800; color: var(--cyan-400); letter-spacing: 2px; margin-bottom: 14px; }
.pillar h3 { font-size: 21px; font-weight: 800; color: var(--blue-900); margin-bottom: 12px; }
.pillar p { font-size: 14.5px; color: var(--ink-2); margin-bottom: 16px; }
.pillar ul { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.pillar ul li { font-size: 13.5px; color: var(--ink-2); padding-left: 20px; position: relative; }
.pillar ul li::before { content: "▸"; position: absolute; left: 0; color: var(--blue-400); }

/* ---------- Stats ---------- */
.stats-band {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  color: #fff; padding: 64px 0;
}
.stats-band .grid { gap: 20px; }
.stat { text-align: center; padding: 10px; }
.stat .num { font-size: clamp(32px, 4vw, 46px); font-weight: 800; letter-spacing: -1px; }
.stat .num em { font-style: normal; color: var(--cyan-300); }
.stat .label { font-size: 14px; color: rgba(255,255,255,0.75); margin-top: 6px; }

/* ---------- Feature split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split .visual {
  border-radius: 18px; min-height: 340px;
  background:
    radial-gradient(400px 260px at 80% 20%, rgba(47,208,232,0.35), transparent 60%),
    linear-gradient(135deg, var(--blue-900), var(--blue-600));
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.9); font-size: 15px; text-align: center;
  padding: 40px; box-shadow: var(--shadow);
}
.split h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; color: var(--blue-900); letter-spacing: -0.3px; margin-bottom: 18px; }
.split p { color: var(--ink-2); margin-bottom: 16px; }
.check-list { display: flex; flex-direction: column; gap: 14px; margin: 22px 0 30px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink-2); }
.check-list li .dot {
  flex: 0 0 22px; width: 22px; height: 22px; margin-top: 2px;
  border-radius: 50%; background: var(--bg-blue);
  color: var(--blue-600); font-size: 12px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.check-list li b { color: var(--blue-900); }

/* ---------- Service tables (module matrix) ---------- */
.svc-block { margin-bottom: 56px; }
.svc-block:last-child { margin-bottom: 0; }
.svc-block h3 {
  font-size: 21px; font-weight: 800; color: var(--blue-900);
  margin-bottom: 8px; display: flex; align-items: center; gap: 12px;
}
.svc-block h3 .tag {
  font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  background: var(--bg-blue); color: var(--blue-600);
  padding: 4px 10px; border-radius: 6px;
}
.svc-block > p { color: var(--ink-2); margin-bottom: 20px; max-width: 860px; }
.module-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
.module-table th, .module-table td { padding: 14px 18px; text-align: left; font-size: 14.5px; }
.module-table thead th {
  background: var(--blue-800); color: #fff; font-weight: 600; letter-spacing: 0.4px;
}
.module-table tbody tr { border-bottom: 1px solid var(--line); }
.module-table tbody tr:last-child { border-bottom: none; }
.module-table tbody tr:nth-child(even) { background: var(--bg-soft); }
.module-table td:first-child { font-weight: 600; color: var(--blue-900); white-space: nowrap; width: 30%; }
.module-table td:last-child { color: var(--ink-2); }

/* ---------- Timeline (about) ---------- */
.timeline { position: relative; margin-top: 20px; }
.timeline::before {
  content: ""; position: absolute; left: 10px; top: 6px; bottom: 6px;
  width: 2px; background: var(--line);
}
.tl-item { position: relative; padding: 0 0 34px 44px; }
.tl-item::before {
  content: ""; position: absolute; left: 2px; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 4px solid var(--blue-500);
}
.tl-item .year { font-size: 17px; font-weight: 800; color: var(--blue-600); margin-bottom: 6px; }
.tl-item ul { display: flex; flex-direction: column; gap: 6px; }
.tl-item li { font-size: 14.5px; color: var(--ink-2); position: relative; padding-left: 16px; }
.tl-item li::before { content: "·"; position: absolute; left: 2px; color: var(--blue-400); font-weight: 800; }

/* ---------- Values ---------- */
.value-card { text-align: center; padding: 36px 24px; }
.value-card .glyph { font-size: 34px; margin-bottom: 14px; }
.value-card h3 { font-size: 18px; font-weight: 800; color: var(--blue-900); margin-bottom: 8px; }
.value-card p { font-size: 14px; color: var(--ink-3); }

/* ---------- Contact ---------- */
.contact-intro { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.contact-kicker {
  font-size: 13px; font-weight: 800; letter-spacing: 2px;
  text-transform: uppercase; color: var(--blue-600); margin-bottom: 12px;
}
.contact-intro h2 {
  font-size: clamp(26px, 3.4vw, 38px); font-weight: 800;
  color: var(--blue-900); margin-bottom: 14px; line-height: 1.25;
}
.contact-intro p { color: var(--ink-2); font-size: 17px; }
.contact-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.contact-cards .contact-card {
  flex-direction: column; align-items: flex-start; gap: 14px;
  margin-bottom: 0; padding: 30px 28px; border-radius: 16px;
  transition: transform 0.22s, box-shadow 0.22s;
}
.contact-cards .contact-card:hover {
  transform: translateY(-5px); box-shadow: var(--shadow);
}
.contact-cards .contact-card .icon { width: 52px; height: 52px; font-size: 24px; border-radius: 14px; }
.contact-cards .contact-card h4 { font-size: 16px; }
.contact-cards .contact-card p, .contact-cards .contact-card a { font-size: 15px; line-height: 1.65; }
.contact-cta {
  margin-top: 44px;
  background:
    radial-gradient(700px 300px at 90% 0%, rgba(47,208,232,0.25), transparent 60%),
    linear-gradient(120deg, var(--blue-900), var(--blue-700));
  border-radius: 20px; color: #fff; padding: 48px 52px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 30px; flex-wrap: wrap;
}
.contact-cta h3 { font-size: clamp(22px, 2.6vw, 28px); font-weight: 800; margin-bottom: 8px; }
.contact-cta p { color: rgba(255,255,255,0.78); max-width: 540px; }
.contact-cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-light { background: #fff; color: var(--blue-700); border: 1px solid #fff; }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.25); }
@media (max-width: 960px) {
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .contact-cards { grid-template-columns: 1fr; }
  .contact-cta { padding: 36px 28px; }
}

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 90% 0%, rgba(47,208,232,0.25), transparent 60%),
    linear-gradient(120deg, var(--blue-900), var(--blue-700));
  border-radius: 20px; color: #fff;
  padding: 56px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,0.78); max-width: 560px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--blue-900); color: rgba(255,255,255,0.72); margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding: 64px 0 44px; }
.footer-brand .logo-text .en { color: #fff; }
.footer-brand p { font-size: 13.5px; margin-top: 14px; max-width: 300px; }
.site-footer h5 { color: #fff; font-size: 14px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a { color: rgba(255,255,255,0.65); font-size: 14px; }
.site-footer ul a:hover { color: var(--cyan-300); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0; font-size: 13px; color: rgba(255,255,255,0.5);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .main-nav {
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 12px 20px 20px;
    border-bottom: 1px solid var(--line);
    display: none; box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 8px; font-size: 16px; }
  .nav-toggle { display: block; }
  .nav-dropdown { width: 100%; }
  .nav-dropdown > .drop-toggle { width: 100%; justify-content: space-between; padding: 12px 8px; font-size: 16px; }
  .dropdown-menu {
    position: static; display: none; opacity: 1; visibility: visible;
    transform: none; box-shadow: none; border: none; min-width: 0;
    padding: 0 0 8px 16px;
  }
  .nav-dropdown.open .dropdown-menu { display: block; }
  .nav-dropdown:hover .dropdown-menu { display: none; }
  .nav-dropdown.open:hover .dropdown-menu { display: block; }
  .hero-inner { padding: 80px 0 90px; }
  .section { padding: 64px 0; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .cta-band { padding: 40px 28px; }
}

/* ===== About page (cloudengined-style layout) ===== */
.about-hero h1 { max-width: 820px; }
.num-kicker {
  font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--blue-600); font-weight: 700; margin-bottom: 16px;
}
.num-kicker span { color: var(--ink-3); font-weight: 600; }
.num-kicker.light { color: var(--cyan-300); }
.num-kicker.light span { color: rgba(255,255,255,.55); }
.promise-card { text-align: left; padding: 30px 26px; }
.promise-card .p-num {
  font-size: 13px; font-weight: 800; letter-spacing: 1px;
  color: var(--blue-500); margin-bottom: 12px;
}
.promise-card h3 { font-size: 17px; font-weight: 800; color: var(--blue-900); margin-bottom: 8px; }
.promise-card p { font-size: 14px; color: var(--ink-3); }
.step-card { text-align: left; padding: 30px 26px; }
.step-card .step-no {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan-400));
  color: #fff; font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.step-card h3 { font-size: 17px; font-weight: 800; color: var(--blue-900); margin-bottom: 12px; }
.step-card ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.step-card li { font-size: 14px; color: var(--ink-2); padding-left: 16px; position: relative; }
.step-card li::before { content: "—"; position: absolute; left: 0; color: var(--blue-500); }
.serve-card { text-align: left; padding: 30px 26px; }
.serve-card .s-tag {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--blue-600);
  background: rgba(37,99,235,.08); border-radius: 6px;
  padding: 4px 10px; margin-bottom: 14px;
}
.serve-card h3 { font-size: 17px; font-weight: 800; color: var(--blue-900); margin-bottom: 8px; }
.serve-card p { font-size: 14px; color: var(--ink-3); }
.group-entities {
  margin-top: 24px; padding: 20px 22px; border-radius: 12px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  font-size: 15px; font-weight: 600; line-height: 2; color: #fff;
}
.group-entities div::before { content: "▸ "; color: var(--cyan-300); }

/* ===== GPU Full-Stack Delivery page ===== */
.pillar-card { text-align: left; padding: 30px 26px; }
.g-tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--blue-600);
  background: rgba(37,99,235,.08); border-radius: 6px;
  padding: 4px 10px; margin-bottom: 14px;
}
.pillar-card h3 { font-size: 17px; font-weight: 800; color: var(--blue-900); margin-bottom: 8px; }
.pillar-card p { font-size: 14px; color: var(--ink-3); }
.stack-layers { display: flex; flex-direction: column; gap: 16px; max-width: 960px; }
.stack-band {
  border-radius: 14px; padding: 20px 24px;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.stack-band.sb-mid { background: var(--bg-blue); border-color: rgba(37,99,235,.18); }
.stack-band.sb-deep {
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700)); border: none;
}
.sb-name { font-size: 15px; font-weight: 800; color: var(--blue-900); margin-bottom: 12px; }
.sb-no {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1px;
  color: var(--blue-600); background: rgba(37,99,235,.10);
  border-radius: 5px; padding: 2px 8px; margin-right: 10px; vertical-align: 2px;
}
.sb-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.sb-chips span {
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 999px; padding: 5px 14px;
}
.sb-deep .sb-name { color: #fff; }
.sb-deep .sb-no { color: var(--cyan-300); background: rgba(111,227,242,.15); }
.sb-deep .sb-chips span {
  color: rgba(255,255,255,.9); background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.18);
}
@media (max-width: 600px) {
  .stack-band { padding: 16px; }
}

/* ---- Service Office (About, deep section) ---- */
.office-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin-top: 36px;
}
.office-col {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px;
  padding: 22px 26px;
}
.office-col h4 {
  margin: 0 0 8px;
  font-size: 13px; font-weight: 800;
  letter-spacing: 1.6px; text-transform: uppercase;
  color: var(--cyan-300);
}
.office-col p { margin: 0; color: rgba(255,255,255,.88); font-size: 16px; line-height: 1.7; }
@media (max-width: 600px) {
  .office-grid { grid-template-columns: 1fr; }
}

/* ===== Success Stories ===== */
.case-card {
  background: #fff;
  border: 1px solid var(--line, #e6ebf2);
  border-radius: 16px;
  padding: 36px 40px;
  margin-bottom: 28px;
  box-shadow: 0 6px 24px rgba(15, 40, 90, .06);
  transition: transform .25s ease, box-shadow .25s ease;
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(15, 40, 90, .12);
}
.case-head { display: flex; gap: 20px; align-items: flex-start; }
.case-no {
  flex: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--blue-500, #2563eb);
  background: rgba(37, 99, 235, .08);
  border-radius: 10px;
  padding: 6px 12px;
  letter-spacing: .04em;
}
.case-head h3 { margin: 0 0 6px; font-size: 21px; color: var(--ink, #0f285a); }
.case-head p { margin: 0; color: var(--ink-2, #4a5568); font-size: 16px; line-height: 1.6; }
.case-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 24px 0;
  padding: 20px 24px;
  background: linear-gradient(135deg, rgba(37, 99, 235, .05), rgba(14, 165, 233, .05));
  border-radius: 12px;
}
.case-stat strong {
  display: block;
  font-size: 34px;
  font-weight: 800;
  color: var(--blue-600, #1d4ed8);
  line-height: 1.15;
}
.case-stat span { color: var(--ink-3, #64748b); font-size: 14px; }
.case-meta { display: grid; gap: 10px; font-size: 14.5px; color: var(--ink-2, #4a5568); line-height: 1.6; }
.case-meta .m-label {
  display: inline-block;
  min-width: 82px;
  font-weight: 700;
  color: var(--ink, #0f285a);
}
@media (max-width: 700px) {
  .case-card { padding: 26px 22px; }
  .case-stats { grid-template-columns: 1fr; }
  .case-stat strong { font-size: 28px; }
}

/* ===== Hero background images ===== */
.hero-img {
  background-size: cover;
  background-position: center;
}
.hi-datacenter, .hi-construction, .hi-operations, .hi-maintenance, .hi-gpu, .hi-network {
  background-image: linear-gradient(100deg, rgba(10, 28, 66, .82) 25%, rgba(10, 28, 66, .45)), var(--bg) !important;
}
.hi-datacenter { --bg: url("../images/hero-datacenter.jpg"); }
.hi-construction { --bg: url("../images/svc-construction.jpg"); }
.hi-operations { --bg: url("../images/svc-operations.jpg"); }
.hi-maintenance { --bg: url("../images/svc-maintenance.jpg"); }
.hi-gpu { --bg: url("../images/svc-gpu.jpg"); }
.hi-network { --bg: url("../images/svc-network.jpg"); }

/* ===== Visual service components ===== */
.img-band { position: relative; border-radius: 18px; overflow: hidden; margin-bottom: 40px; box-shadow: 0 12px 32px rgba(15, 40, 90, .12); }
.img-band img { width: 100%; height: 360px; object-fit: cover; display: block; }
.img-band .chips { position: absolute; left: 18px; bottom: 18px; right: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.chip { background: rgba(10, 28, 66, .88); color: #fff; padding: 9px 16px; border-radius: 999px; font-size: 14px; font-weight: 600; }
.sec-kicker { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue-500); margin: 0 0 8px; }
.sec-title { font-size: 30px; margin: 0 0 10px; color: var(--ink); }
.sec-sub { color: var(--ink-2); font-size: 16.5px; margin: 0 0 32px; }
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 48px; }
.cap-card { background: #fff; border: 1px solid var(--line, #e6ebf2); border-radius: 14px; padding: 24px 20px; transition: transform .2s, box-shadow .2s; }
.cap-card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(15, 40, 90, .10); }
.cap-card .ic { font-size: 26px; line-height: 1; }
.cap-card h4 { margin: 12px 0 4px; font-size: 16.5px; color: var(--ink); }
.cap-card p { margin: 0; color: var(--ink-2); font-size: 13.5px; line-height: 1.55; }
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.flow-step { position: relative; background: linear-gradient(160deg, #f5f8ff, #eef4ff); border: 1px solid #dbe6ff; border-radius: 14px; padding: 20px 14px; text-align: center; }
.flow-step .fs-no { width: 34px; height: 34px; border-radius: 50%; background: var(--blue-500); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 10px; font-size: 15px; }
.flow-step h4 { margin: 0 0 4px; font-size: 15.5px; color: var(--ink); }
.flow-step p { margin: 0; color: var(--ink-2); font-size: 13px; line-height: 1.45; }
.flow-step:not(:last-child)::after { content: "\2192"; position: absolute; right: -23px; top: 50%; transform: translateY(-50%); color: var(--blue-500); font-size: 20px; font-weight: 700; z-index: 1; }
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.stat-strip .st { text-align: center; background: linear-gradient(160deg, var(--blue-900), var(--blue-700)); color: #fff; border-radius: 14px; padding: 22px 12px; }
.stat-strip .st b { display: block; font-size: 28px; font-weight: 800; margin-bottom: 4px; }
.stat-strip .st span { font-size: 13px; color: rgba(255, 255, 255, .78); }
.net-map { display: flex; align-items: center; justify-content: center; gap: 14px; background: #fff; border: 1px solid var(--line, #e6ebf2); border-radius: 16px; padding: 30px 22px; margin-bottom: 48px; flex-wrap: wrap; }
.net-map .nm-col { display: flex; flex-direction: column; gap: 10px; }
.net-map .nm-node { background: #f5f8ff; border: 1px solid #dbe6ff; border-radius: 10px; padding: 12px 18px; font-size: 14.5px; font-weight: 600; color: var(--ink); text-align: center; }
.net-map .nm-node.hub { background: linear-gradient(160deg, var(--blue-600, #1d4ed8), var(--blue-500, #2563eb)); color: #fff; border: none; }
.net-map .nm-link { font-size: 13px; font-weight: 700; color: var(--blue-500); text-align: center; max-width: 120px; line-height: 1.5; }
.sla-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 48px; }
.sla-card { background: #fff; border: 1px solid var(--line, #e6ebf2); border-radius: 14px; padding: 26px 22px; text-align: center; }
.sla-card.hot { border-color: var(--blue-500); box-shadow: 0 10px 26px rgba(37, 99, 235, .14); }
.sla-card b { display: block; font-size: 26px; font-weight: 800; color: var(--blue-600, #1d4ed8); margin-bottom: 6px; }
.sla-card span { color: var(--ink-2); font-size: 14px; }
@media (max-width: 960px) {
  .cap-grid, .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow-step::after { display: none; }
  .sla-row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cap-grid, .flow, .stat-strip { grid-template-columns: 1fr; }
  .img-band img { height: 240px; }
}