:root {
  --navy: #0a1f3d;
  --navy-2: #0f2c52;
  --blue: #2b6de0;
  --cyan: #16a8cc;
  --ink: #16213a;
  --gray: #5c6b7a;
  --gray-light: #8a96a8;
  --bg: #f6f8fb;
  --bg-card: #ffffff;
  --border: #e6eaf1;
  --gradient: linear-gradient(135deg, #16a8cc 0%, #2b6de0 100%);
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }
section.tight { padding: 72px 0; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue);
  margin-bottom: 14px;
  text-transform: uppercase;
}

h2.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-sub {
  font-size: 16px;
  color: var(--gray);
  max-width: 640px;
}

.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }

.about-intro {
  font-size: 15.5px;
  color: var(--ink);
  max-width: 720px;
  margin: 20px auto 0;
  line-height: 1.9;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 248, 251, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.brand img { height: 28px; width: auto; }

.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 14.5px;
  color: var(--ink);
  font-weight: 500;
}
.nav-links a:hover { color: var(--blue); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 20px rgba(43, 109, 224, 0.28);
}
.btn-primary:hover { box-shadow: 0 10px 24px rgba(43, 109, 224, 0.36); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

.btn-light {
  background: #fff;
  color: var(--navy);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.btn-outline-light:hover { border-color: #fff; }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 56px;
  background:
    radial-gradient(60% 55% at 85% 0%, rgba(22, 168, 204, 0.10), transparent 60%),
    radial-gradient(45% 45% at 0% 20%, rgba(43, 109, 224, 0.08), transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 22px;
}
.hero-tag strong { color: var(--blue); font-weight: 700; }

.hero h1 {
  font-size: 46px;
  line-height: 1.22;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.hero h1 .accent {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  font-size: 17px;
  color: var(--gray);
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 14px; margin-bottom: 40px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.hero-stat b { display: block; font-size: 26px; color: var(--ink); font-weight: 800; }
.hero-stat span { font-size: 13px; color: var(--gray); }

/* Hero visual: mock dashboard card */
.hero-visual { position: relative; }
.mock-card {
  background: var(--navy);
  border-radius: 20px;
  padding: 26px;
  color: #fff;
  box-shadow: 0 30px 60px rgba(10, 31, 61, 0.35);
}
.mock-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.mock-head .dot-row { display: flex; gap: 6px; }
.mock-head .dot-row span { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.25); display: block; }
.mock-head .label { font-size: 12.5px; color: rgba(255,255,255,0.55); }

.mock-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.mock-tile {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 16px;
}
.mock-tile b { display: block; font-size: 24px; font-weight: 800; margin-bottom: 4px; }
.mock-tile span { font-size: 12.5px; color: rgba(255,255,255,0.55); }
.mock-tile.cyan b { color: #4fd4ec; }
.mock-tile.blue b { color: #6fa0ff; }
.mock-tile.amber b { color: #f3b35e; }
.mock-tile.green b { color: #5fe0a8; }

.mock-feed {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 14px 16px;
}
.mock-feed-row { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: rgba(255,255,255,0.72); padding: 7px 0; border-bottom: 1px dashed rgba(255,255,255,0.08); }
.mock-feed-row:last-child { border-bottom: none; }
.mock-feed-row .pulse { width: 7px; height: 7px; border-radius: 50%; background: #4fd4ec; flex: none; }

.floating-badge {
  position: absolute;
  background: #fff;
  border-radius: 12px;
  padding: 10px 14px;
  box-shadow: 0 14px 30px rgba(10,31,61,0.16);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}
.floating-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: #34c37a; }
.fb-1 { top: -18px; left: -24px; }
.fb-2 { bottom: 30px; right: -28px; }

.logo-strip { margin-top: 36px; }
.logo-strip .label { font-size: 12.5px; color: var(--gray-light); margin-bottom: 14px; letter-spacing: 0.02em; }
.logo-strip .items { display: flex; flex-wrap: wrap; gap: 10px; }
.logo-strip .items span {
  font-size: 13px;
  color: var(--gray);
  background: #fff;
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 8px;
}

/* ---------- Generic cards ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}

.num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: var(--blue);
  margin-bottom: 14px;
}

.card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--gray); }

.icon-tile {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  background: linear-gradient(135deg, rgba(22,168,204,0.14), rgba(43,109,224,0.14));
  margin-bottom: 16px;
}

/* ---------- Stats bar ---------- */
.stats-bar {
  background: var(--navy);
  color: #fff;
  padding: 56px 0;
}
.stats-bar .grid-3 { text-align: center; }
.stats-bar b { display: block; font-size: 40px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 8px; }
.stats-bar span { font-size: 14px; color: rgba(255,255,255,0.66); }

/* ---------- Pain points on light grey section ---------- */
.section-alt { background: #fff; }

/* ---------- Shift compare ---------- */
.compare-wrap { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; }
.compare-col { border-radius: var(--radius); padding: 28px; }
.compare-col.old { background: #fff6f5; border: 1px solid #fbd9d4; }
.compare-col.new { background: #f1f7ff; border: 1px solid #d6e6fd; }
.compare-col h4 { font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.compare-col.old h4 { color: #d2503f; }
.compare-col.new h4 { color: var(--blue); }
.compare-list { list-style: none; }
.compare-list li { font-size: 14px; padding: 10px 0; border-bottom: 1px dashed rgba(0,0,0,0.06); display: flex; gap: 10px; color: var(--ink); }
.compare-list li:last-child { border-bottom: none; }
.compare-col.old .compare-list li::before { content: "×"; color: #d2503f; font-weight: 800; }
.compare-col.new .compare-list li::before { content: "√"; color: var(--blue); font-weight: 800; }
.vs-circle {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800;
}
.compare-foot { text-align: center; margin-top: 28px; font-size: 16px; font-weight: 700; color: var(--ink); }

/* ---------- Compare table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; }
table.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; }
table.compare-table th, table.compare-table td { padding: 16px 20px; font-size: 14px; text-align: center; border-bottom: 1px solid var(--border); }
table.compare-table th { font-size: 13.5px; color: var(--gray); font-weight: 700; }
table.compare-table td:first-child, table.compare-table th:first-child { text-align: left; color: var(--ink); font-weight: 600; }
table.compare-table th.highlight, table.compare-table td.highlight { background: #f1f7ff; }
table.compare-table .yes { color: var(--blue); font-weight: 800; }
table.compare-table .no { color: #c7cfdb; }
table.compare-table tr:last-child td { border-bottom: none; }

/* ---------- Flow ---------- */
.flow-wrap { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; align-items: stretch; position: relative; }
.flow-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.flow-card.center { background: var(--navy); color: #fff; border: none; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; margin: 0 16px; }
.flow-card.center img { height: 34px; margin-bottom: 10px; }
.flow-card.center strong { font-size: 17px; margin-bottom: 8px; }
.flow-card.center span { font-size: 12.5px; color: rgba(255,255,255,0.6); line-height: 1.7; }
.flow-card h5 { font-size: 14px; color: var(--gray); margin-bottom: 14px; font-weight: 700; }
.flow-item { font-size: 13.5px; padding: 10px 12px; background: var(--bg); border-radius: 8px; margin-bottom: 8px; color: var(--ink); }
.flow-item:last-child { margin-bottom: 0; }
.flow-item.active { background: #eef5ff; color: var(--blue); font-weight: 700; }

/* ---------- Architecture ---------- */
.arch-row { display: flex; gap: 14px; align-items: stretch; margin-bottom: 14px; }
.arch-label { width: 100px; flex: none; display: flex; align-items: center; font-size: 13px; color: var(--gray); font-weight: 700; }
.arch-items { flex: 1; display: flex; gap: 14px; }
.arch-items > div {
  flex: 1;
  border-radius: 10px;
  padding: 16px 18px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
}
.arch-use { background: #fff; border: 1px solid var(--border); color: var(--ink); }
.arch-decision { background: var(--gradient); color: #fff; justify-content: space-between; }
.arch-decision small { font-weight: 400; opacity: 0.85; font-size: 12px; }
.arch-ability { background: #fff; border: 1px solid var(--border); color: var(--ink); justify-content: center; text-align: center; font-size: 13.5px; }
.arch-kb { background: var(--navy); color: #fff; justify-content: center; text-align: center; }

/* ---------- Capability cards ---------- */
.cap-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.cap-card .num { font-size: 13px; font-weight: 800; color: var(--cyan); margin-bottom: 10px; letter-spacing: 0.04em; }
.cap-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 10px; }
.cap-card p { font-size: 14px; color: var(--gray); }

/* ---------- Compliance ---------- */
.compliance-section { background: var(--navy); color: #fff; }
.compliance-section .section-sub { color: rgba(255,255,255,0.65); }
.compliance-section h2.section-title { color: #fff; }
.compliance-section .eyebrow { color: #4fd4ec; }
.compliance-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 36px; }
.compliance-grid .num { font-size: 13px; color: #4fd4ec; font-weight: 800; margin-bottom: 10px; }
.compliance-grid h4 { font-size: 16px; margin-bottom: 8px; font-weight: 700; }
.compliance-grid p { font-size: 13.5px; color: rgba(255,255,255,0.6); }
.compliance-banner {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 20px 26px;
  text-align: center;
  font-weight: 700;
  font-size: 15px;
}

/* ---------- Who benefits ---------- */
.benefit-card { border-radius: var(--radius); padding: 24px; border: 1px solid var(--border); background: #fff; }
.benefit-card.primary { background: var(--navy); color: #fff; border: none; }
.benefit-card .tag { font-size: 12px; font-weight: 800; color: var(--blue); margin-bottom: 10px; }
.benefit-card.primary .tag { color: #4fd4ec; }
.benefit-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.benefit-card p { font-size: 13.5px; color: var(--gray); }
.benefit-card.primary p { color: rgba(255,255,255,0.68); }

/* ---------- Cases ---------- */
.case-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
}
.case-head {
  padding: 22px 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.case-head .tag {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--blue);
  background: #eaf2fe;
  padding: 5px 12px;
  border-radius: 999px;
}
.case-head h3 { font-size: 19px; font-weight: 800; }
.case-body { padding: 24px 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.case-body .col h5 { font-size: 12.5px; color: var(--gray-light); font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 8px; }
.case-body .col p { font-size: 14px; color: var(--ink); }

/* ---------- Content showcase ---------- */
.showcase-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}
.showcase-tag { display: inline-block; font-size: 11.5px; font-weight: 800; color: #fff; padding: 3px 10px; border-radius: 999px; margin-bottom: 12px; }
.showcase-card p.title { font-size: 14.5px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; min-height: 44px; }
.showcase-card p.meta { font-size: 12px; color: var(--gray-light); }

/* ---------- How it works / Delivery ---------- */
.steps-row { display: flex; justify-content: space-between; position: relative; margin-bottom: 20px; }
.steps-row::before {
  content: "";
  position: absolute;
  top: 19px; left: 40px; right: 40px;
  height: 2px;
  background: var(--border);
  z-index: 0;
}
.step-item { position: relative; z-index: 1; text-align: center; flex: 1; padding: 0 10px; }
.step-circle {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gradient); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px;
  margin: 0 auto 14px;
}
.step-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.step-item p { font-size: 13px; color: var(--gray); }

.delivery-list { display: flex; flex-direction: column; gap: 0; }
.delivery-row { display: flex; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--border); }
.delivery-row:last-child { border-bottom: none; }
.delivery-row .step-circle { margin: 0; flex: none; }
.delivery-row h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.delivery-row p { font-size: 14px; color: var(--gray); }

/* ---------- About ---------- */
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 20px; }
.about-stats .card { text-align: center; }
.about-stats b { display: block; font-size: 36px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.about-stats span { font-size: 13.5px; color: var(--gray); }

/* ---------- CTA / footer ---------- */
.cta-section { background: var(--navy); color: #fff; }
.cta-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; align-items: center; }
.cta-grid h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; }
.cta-grid p { font-size: 15.5px; color: rgba(255,255,255,0.65); margin-bottom: 28px; max-width: 480px; }
.cta-phone {
  display: inline-flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 15px;
}
.cta-phone b { font-size: 19px; letter-spacing: 0.02em; }
.cta-actions { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }

.qr-card {
  background: #fff;
  border-radius: 16px;
  padding: 22px;
  text-align: center;
  color: var(--ink);
  justify-self: center;
  width: 240px;
}
.qr-card img { width: 180px; height: 180px; margin: 0 auto 14px; border-radius: 8px; }
.qr-card .name { font-size: 14px; font-weight: 700; }
.qr-card .role { font-size: 12px; color: var(--gray); margin-bottom: 10px; }
.qr-card .hint { font-size: 12px; color: var(--gray-light); }

.footer {
  background: #061328;
  color: rgba(255,255,255,0.5);
  padding: 32px 0;
  font-size: 13px;
}
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-inner .brand { color: rgba(255,255,255,0.75); font-size: 14px; }
.footer-inner .brand img { height: 20px; }

.footer-bottom {
  text-align: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12.5px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a {
  color: inherit;
  text-decoration: underline;
  margin-left: 6px;
}
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .compare-wrap { grid-template-columns: 1fr; }
  .vs-circle { margin: 0 auto; }
  .flow-wrap { grid-template-columns: 1fr; gap: 16px; }
  .flow-card.center { margin: 0; }
  .arch-row { flex-direction: column; }
  .arch-label { width: auto; }
  .arch-items { flex-direction: column; }
  .compliance-grid { grid-template-columns: repeat(2, 1fr); }
  .case-body { grid-template-columns: repeat(2, 1fr); }
  .about-stats { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .qr-card { justify-self: start; }
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .steps-row { flex-direction: column; gap: 24px; }
  .steps-row::before { display: none; }
}

@media (max-width: 640px) {
  section { padding: 64px 0; }
  .hero { padding: 48px 0 32px; }
  .hero h1 { font-size: 28px; }
  .grid-4, .grid-3, .grid-5, .grid-2 { grid-template-columns: 1fr; }
  .case-body { grid-template-columns: 1fr; }
  .compliance-grid { grid-template-columns: 1fr; }
  table.compare-table { font-size: 12.5px; }
  .nav-links { display: none; }
}