:root {
  --ink: #10203d;
  --muted: #60708c;
  --blue: #2868e8;
  --blue-dark: #1754cf;
  --cyan: #31c9d6;
  --line: #e4ebf5;
  --soft: #f4f8ff;
  --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 76px;
  display: flex;
  align-items: center;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 750; letter-spacing: .08em; }
.brand-mark { width: 32px; height: 32px; display: flex; align-items: end; justify-content: center; gap: 3px; padding: 7px 6px; border-radius: 9px; background: linear-gradient(145deg, var(--blue), #5e91fa); box-shadow: 0 8px 20px rgba(40,104,232,.22); }
.brand-mark i { display: block; width: 4px; border-radius: 3px; background: white; transform: skew(-10deg); }
.brand-mark i:nth-child(1) { height: 8px; opacity: .72; }
.brand-mark i:nth-child(2) { height: 14px; }
.brand-mark i:nth-child(3) { height: 11px; opacity: .86; }
nav { display: flex; gap: 38px; margin: 0 auto; color: #4c5d78; font-size: 14px; }
nav a { position: relative; transition: .2s; }
nav a:hover { color: var(--blue); }
nav a::after { content: ""; position: absolute; left: 50%; bottom: -12px; width: 0; height: 2px; background: var(--blue); transition: .2s; }
nav a:hover::after { left: 0; width: 100%; }
.header-link { padding: 10px 19px; border: 1px solid #dce5f2; border-radius: 9px; font-size: 14px; font-weight: 600; transition: .2s; }
.header-link:hover { color: var(--blue); border-color: #a9c4f5; }

.hero {
  position: relative;
  min-height: 710px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  overflow: hidden;
  padding: 74px max(28px, calc((100vw - 1184px) / 2)) 110px;
  background:
    radial-gradient(circle at 80% 28%, rgba(69,133,255,.13), transparent 28%),
    radial-gradient(circle at 92% 70%, rgba(49,201,214,.10), transparent 20%),
    linear-gradient(180deg, #fbfdff 0%, #f5f9ff 100%);
}
.hero::before { content: ""; position: absolute; inset: 0; opacity: .3; background-image: linear-gradient(#cddcf1 1px, transparent 1px), linear-gradient(90deg, #cddcf1 1px, transparent 1px); background-size: 54px 54px; mask-image: linear-gradient(to right, transparent 35%, #000); }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--blue); font-size: 12px; font-weight: 750; letter-spacing: .16em; }
.eyebrow span { width: 23px; height: 2px; background: currentColor; }
h1 { margin: 0; font-size: clamp(43px, 4.7vw, 68px); line-height: 1.18; letter-spacing: -.04em; }
h1 em { color: var(--blue); font-style: normal; }
.hero-intro { max-width: 570px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 14px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 0 24px; border-radius: 9px; font-size: 14px; font-weight: 650; transition: transform .2s, box-shadow .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #fff; background: linear-gradient(135deg, var(--blue), #4383f6); box-shadow: 0 12px 28px rgba(40,104,232,.23); }
.button.primary:hover { box-shadow: 0 16px 32px rgba(40,104,232,.3); }
.button.secondary { color: var(--ink); border: 1px solid var(--line); background: rgba(255,255,255,.75); }
.hero-points { display: flex; gap: 34px; margin: 40px 0 0; padding: 0; list-style: none; color: #697993; font-size: 13px; }
.hero-points li::before { content: "✓"; display: inline-grid; place-items: center; width: 17px; height: 17px; margin-right: 7px; color: var(--blue); border-radius: 50%; background: #e7f0ff; font-size: 11px; font-weight: 800; }

.hero-visual { min-height: 480px; display: grid; place-items: center; }
.glow { position: absolute; width: 480px; height: 360px; border-radius: 50%; background: rgba(53,112,235,.18); filter: blur(70px); }
.dashboard { position: relative; width: min(100%, 560px); padding: 27px; border: 1px solid rgba(255,255,255,.75); border-radius: 22px; background: rgba(255,255,255,.84); box-shadow: 0 34px 70px rgba(41,75,128,.16); backdrop-filter: blur(16px); transform: perspective(1200px) rotateY(-4deg) rotateX(2deg); }
.dashboard-top, .dashboard-foot { display: flex; align-items: center; justify-content: space-between; }
.dashboard-top > div { display: flex; flex-direction: column; gap: 6px; }
.mini-label { color: #8c9bb2; font-size: 11px; }
.dashboard-top strong { font-size: 18px; }
.status { padding: 7px 10px; color: #2c8d75; border-radius: 7px; background: #eaf9f3; font-size: 11px; }
.status i { display: inline-block; width: 6px; height: 6px; margin-right: 5px; border-radius: 50%; background: #31bb91; }
.metric-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 25px 0 18px; }
.metric-row > div { display: flex; align-items: end; justify-content: space-between; padding: 16px; border-radius: 11px; background: #f4f7fb; }
.metric-row span { color: #7e8da4; font-size: 11px; }
.metric-row strong { font-size: 25px; }
.metric-row small { margin-left: 2px; color: var(--blue); font-size: 12px; }
.chart { position: relative; height: 190px; overflow: hidden; border-radius: 10px; }
.chart-lines { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: space-between; }
.chart-lines i { width: 100%; border-top: 1px dashed #dce5f1; }
.chart svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.chart .area { fill: url(#area); }
.chart .line { fill: none; stroke: #3476ee; stroke-width: 4; stroke-linecap: round; filter: drop-shadow(0 5px 4px rgba(52,118,238,.25)); }
.dashboard-foot { margin-top: 20px; color: #7a899e; font-size: 11px; }
.dashboard-foot span { margin-right: 16px; }
.dashboard-foot b { margin-left: auto; color: #2d83a0; font-weight: 600; }
.dot { display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 50%; }
.dot.blue { background: var(--blue); }
.dot.cyan { background: var(--cyan); }
.float-card { position: absolute; z-index: 2; display: flex; align-items: center; gap: 11px; padding: 13px 17px; border: 1px solid rgba(255,255,255,.8); border-radius: 13px; background: rgba(255,255,255,.94); box-shadow: 0 18px 40px rgba(34,67,118,.15); }
.float-card div { display: flex; flex-direction: column; gap: 3px; }
.float-card small { color: #8492a7; font-size: 10px; }
.float-card strong { font-size: 13px; }
.float-a { top: 40px; right: -6px; }
.float-b { bottom: 35px; left: -8px; }
.float-icon { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; border-radius: 9px; background: linear-gradient(145deg, #2b6de9, #62a0ff); }
.pulse { width: 14px; height: 14px; border: 4px solid #d6f7f0; border-radius: 50%; background: #2cc396; box-shadow: 0 0 0 5px #effbf8; }

.section { max-width: 1240px; margin: 0 auto; padding: 105px 28px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 46px; }
.section-heading h2, .about h2, .contact h2 { margin: 0; font-size: clamp(30px, 3vw, 42px); letter-spacing: -.025em; }
.section-heading > p { max-width: 410px; margin: 0 0 3px; color: var(--muted); line-height: 1.8; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.service-grid article { position: relative; min-height: 290px; padding: 30px 26px; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #fff; transition: .25s; }
.service-grid article:hover { transform: translateY(-6px); border-color: #bdd0f3; box-shadow: 0 20px 45px rgba(50,82,133,.1); }
.service-no { position: absolute; top: 25px; right: 25px; color: #d5dfed; font-size: 12px; font-weight: 700; }
.service-icon { width: 50px; height: 50px; display: grid; place-items: center; margin: 12px 0 38px; color: var(--blue); border-radius: 12px; background: #edf4ff; }
.service-icon svg { width: 25px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.service-grid h3 { margin: 0 0 15px; font-size: 20px; }
.service-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

.about { max-width: 1300px; padding-top: 60px; }
.about-panel { position: relative; display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; align-items: center; min-height: 440px; padding: 70px; overflow: hidden; border-radius: 24px; color: #fff; background: linear-gradient(135deg, #132846 0%, #173c70 65%, #2159a5 100%); }
.about-panel::after { content: ""; position: absolute; width: 420px; height: 420px; top: -230px; right: -90px; border: 70px solid rgba(255,255,255,.04); border-radius: 50%; }
.about-mark { display: grid; place-items: center; height: 230px; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; background: radial-gradient(circle, rgba(79,142,255,.19), transparent 65%); }
.brand-mark.large { width: 82px; height: 82px; gap: 7px; padding: 18px 15px; border-radius: 23px; box-shadow: 0 20px 55px rgba(22,80,187,.5); }
.brand-mark.large i { width: 10px; }
.brand-mark.large i:nth-child(1) { height: 22px; }
.brand-mark.large i:nth-child(2) { height: 38px; }
.brand-mark.large i:nth-child(3) { height: 29px; }
.eyebrow.light { color: #84b4ff; }
.about-copy { position: relative; z-index: 1; }
.about-copy > p:not(.eyebrow) { max-width: 670px; margin: 25px 0 36px; color: #bed0e8; font-size: 16px; line-height: 2; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); padding-top: 25px; border-top: 1px solid rgba(255,255,255,.13); }
.values div { display: flex; flex-direction: column; gap: 7px; }
.values strong { font-size: 17px; }
.values span { color: #93abc8; font-size: 12px; }

.contact { display: flex; align-items: end; justify-content: space-between; gap: 50px; }
.contact h2 { max-width: 720px; }
.contact p:not(.eyebrow) { margin: 20px 0 0; color: var(--muted); line-height: 1.8; }
.contact .button { flex: 0 0 auto; }

footer { max-width: 1184px; min-height: 110px; display: flex; align-items: center; gap: 30px; margin: 0 auto; padding: 25px 0; border-top: 1px solid var(--line); color: #8491a5; font-size: 12px; }
footer .brand { color: var(--ink); font-size: 17px; }
footer .brand-mark { width: 27px; height: 27px; padding: 6px 5px; }
footer p { margin: 0 auto 0 0; }
footer b { font-weight: 500; }
footer .icp-link { color: inherit; text-decoration: none; white-space: nowrap; transition: color .2s ease; }
footer .icp-link:hover { color: var(--ink); }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 80px; }
  .hero-copy { text-align: center; }
  .eyebrow, .hero-actions, .hero-points { justify-content: center; }
  .hero-intro { margin-left: auto; margin-right: auto; }
  .hero-visual { width: min(650px, 100%); margin: 0 auto; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .about-panel { grid-template-columns: 1fr; }
  .about-mark { display: none; }
  footer { margin: 0 28px; }
}

@media (max-width: 680px) {
  .site-header { height: 66px; padding: 0 18px; }
  .site-header nav { display: none; }
  .header-link { margin-left: auto; padding: 8px 13px; }
  .hero { min-height: auto; padding: 70px 20px 80px; }
  h1 { font-size: 39px; }
  .hero-intro { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-points { gap: 13px; font-size: 11px; }
  .hero-visual { min-height: 360px; }
  .dashboard { padding: 18px; transform: none; }
  .metric-row strong { font-size: 20px; }
  .float-a { top: 5px; right: -10px; }
  .float-b { bottom: 2px; left: -8px; }
  .section { padding: 78px 20px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 20px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-grid article { min-height: 240px; }
  .about { padding-left: 12px; padding-right: 12px; }
  .about-panel { padding: 44px 26px; border-radius: 18px; }
  .values { gap: 10px; }
  .values span { line-height: 1.5; }
  .contact { display: block; }
  .contact .button { margin-top: 30px; }
  footer { flex-wrap: wrap; gap: 14px; margin: 0 20px; padding: 30px 0; }
  footer p { width: 100%; order: 3; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}