:root {
  --ink: #132238;
  --muted: #617187;
  --paper: #f5f7fb;
  --white: #ffffff;
  --line: #e3e9f1;
  --blue: #2563eb;
  --blue-dark: #1747a6;
  --cyan: #dff4f5;
  --orange: #f59e0b;
  --green: #0f9f72;
  --shadow: 0 18px 48px rgba(25, 48, 83, .10);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { background: var(--white); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.nav { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .02em; }
.brand-mark { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; color: #fff; background: var(--blue); font-size: 18px; }
.nav-links { display: flex; align-items: center; gap: 5px; }
.nav-links a { font-size: 14px; color: var(--muted); padding: 9px 13px; border-radius: 7px; }
.nav-links a:hover, .nav-links a.active { color: var(--blue); background: #eef4ff; }
.nav-action { color: #fff !important; background: var(--blue) !important; }
.menu-btn { display:none; border: 0; background: transparent; font-size: 22px; color: var(--ink); }
.hero { padding: 70px 0 58px; background: #eef6fb; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; }
.eyebrow { color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1 { font-size: clamp(36px, 5vw, 60px); line-height: 1.12; letter-spacing: -.04em; margin: 14px 0 20px; }
h2 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; letter-spacing: -.025em; }
h3 { margin: 0 0 7px; font-size: 18px; }
.lead { color: var(--muted); font-size: 18px; max-width: 560px; margin: 0 0 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 7px; padding: 12px 18px; font: inherit; font-weight: 700; cursor: pointer; transition: .2s ease; }
.button-primary { background: var(--blue); color: #fff; box-shadow: 0 8px 18px rgba(37, 99, 235, .18); }
.button-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }
.button-light { background: #fff; color: var(--blue); border: 1px solid #cfe0ff; }
.button-light:hover { background: #f4f7ff; }
.hero-image { min-height: 320px; border-radius: 10px; overflow: hidden; box-shadow: var(--shadow); background: #c8e3ec; }
.hero-image img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
.section { padding: 72px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; margin-bottom: 28px; gap: 24px; }
.section-head p { color: var(--muted); max-width: 470px; margin: 0; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 24px; box-shadow: 0 5px 20px rgba(37, 54, 77, .04); }
.card p { color: var(--muted); margin: 0; font-size: 14px; }
.icon-box { width: 42px; height: 42px; border-radius: 9px; display: grid; place-items: center; background: #e9f0ff; color: var(--blue); font-size: 20px; margin-bottom: 20px; }
.icon-green { background: #e1f7ef; color: var(--green); }
.icon-orange { background: #fff3d9; color: #c27800; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 26px; }
.stat { padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.stat strong { display: block; font-size: 28px; line-height: 1.2; color: var(--blue); }
.stat span { font-size: 13px; color: var(--muted); }
.band { background: var(--ink); color: #fff; padding: 48px 0; }
.band .section-head p { color: #c0ccda; }
.band .button-light { background: transparent; color: #fff; border-color: #72819a; }
.page-intro { padding: 62px 0 44px; background: #eef6fb; }
.page-intro h1 { font-size: clamp(34px, 5vw, 52px); margin-bottom: 12px; }
.page-intro p { margin: 0; color: var(--muted); max-width: 680px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.check-list { margin: 22px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 10px; margin: 12px 0; color: var(--muted); }
.check-list li::before { content: "✓"; color: var(--green); font-weight: 800; }
.service-card { display: flex; flex-direction: column; min-height: 250px; }
.service-card .button { margin-top: auto; align-self: flex-start; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
.step { position: relative; padding: 24px 20px 22px 58px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 18px; top: 22px; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: #e9f0ff; color: var(--blue); font-weight: 800; }
.step p { color: var(--muted); font-size: 14px; margin: 0; }
.form-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 28px; }
label { display:block; font-size: 14px; font-weight: 700; margin-bottom: 7px; }
input, select, textarea { width: 100%; border: 1px solid #d6dfeb; border-radius: 6px; padding: 11px 12px; font: inherit; color: var(--ink); background: #fff; }
textarea { min-height: 110px; resize: vertical; }
.field { margin-bottom: 17px; }
.field-row { display:grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.order-card { background: var(--ink); color:#fff; border-radius: 8px; padding: 26px; position: sticky; top: 94px; }
.order-card p { color:#c4cedb; font-size: 14px; }
.order-line { display:flex; justify-content:space-between; gap: 18px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.13); font-size: 14px; }
.order-line span:first-child { color: #c4cedb; }
.order-total { display:flex; justify-content:space-between; margin: 22px 0; align-items: baseline; }
.order-total strong { color:#91c4ff; font-size: 30px; }
.order-card .button { width:100%; background:#fff; color:var(--blue); }
.notice { display:none; padding: 12px 14px; border-radius: 6px; margin-top: 15px; font-size: 14px; }
.notice.success { display:block; background:#dcf9ec; color:#087755; }
.notice.error { display:block; background:#fff0ed; color:#a83220; }
.payment-box { margin-top:18px; padding:18px; border:1px solid var(--line); border-radius:8px; text-align:center; }
.payment-box img { display:block; max-width:100%; height:auto; margin:12px auto; border:1px solid var(--line); }
.payment-box .button { margin-top:8px; }
.footer { padding: 30px 0; background:#fff; border-top:1px solid var(--line); color:var(--muted); font-size: 13px; }
.footer-inner { display:flex; justify-content:space-between; gap:20px; }
@media (max-width: 760px) {
  .container { width: min(100% - 28px, 600px); }
  .nav { height: 64px; }
  .menu-btn { display:block; }
  .nav-links { display:none; position:absolute; left:14px; right:14px; top:64px; padding:10px; background:#fff; box-shadow:var(--shadow); border:1px solid var(--line); flex-direction:column; align-items:stretch; }
  .nav-links.open { display:flex; }
  .nav-links a { text-align:center; }
  .hero { padding: 42px 0; }
  .hero-grid, .two-col, .form-layout { grid-template-columns: 1fr; }
  .hero-image { min-height: 230px; }
  .hero-image img { min-height: 230px; }
  .cards, .steps { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 50px 0; }
  .section-head { display:block; }
  .section-head p { margin-top: 10px; }
  .order-card { position: static; }
  .footer-inner { display:block; }
}