:root {
  color-scheme: light;
  --ink: #17212e;
  --muted: #526175;
  --line: #dce4e9;
  --blue: #1759d9;
  --blue-dark: #123f9d;
  --paper: #f7fafc;
  --white: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img, svg { max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.23; letter-spacing: -.025em; }
.wrap { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 20; left: 20px; top: -80px; padding: 10px 16px; color: white; background: var(--blue-dark); }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid #f3a63b; outline-offset: 3px; }

.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-size: 14px; font-weight: 700; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 11px; font-size: 14px; letter-spacing: -.08em; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 8px 28px; }
.site-header nav a { text-decoration: none; color: #425269; font-size: 14px; font-weight: 600; }
.site-header nav a:hover { color: var(--blue); }

.hero { overflow: hidden; background: radial-gradient(circle at 90% 5%, #dcecff 0, transparent 30%), linear-gradient(135deg, #f8fbff, #eef5fc); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(330px, .82fr); gap: 9%; align-items: center; padding-block: 96px 108px; }
.eyebrow, .section-kicker { margin-bottom: 16px; color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h1 { margin-bottom: 26px; font-size: clamp(44px, 5.7vw, 74px); font-weight: 800; }
h1 span { color: var(--blue); }
.hero-intro { max-width: 670px; color: var(--muted); font-size: 19px; line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 14px; padding: 11px 21px; border: 1px solid transparent; border-radius: 10px; text-decoration: none; font-size: 14px; font-weight: 700; }
.button-primary { color: white; background: var(--blue); }
.button-primary:hover { background: var(--blue-dark); }
.button-secondary { color: var(--ink); background: var(--white); border-color: var(--line); }
.button-secondary:hover { border-color: #93add8; }
.hero-panel { padding: 31px; background: var(--white); border: 1px solid #d6e3f2; border-radius: 20px; box-shadow: 0 24px 70px rgba(21, 68, 125, .09); }
.panel-label { display: inline-block; padding: 5px 11px; color: var(--blue-dark); background: #e9f1ff; border-radius: 999px; font-size: 12px; font-weight: 700; }
.panel-line { display: flex; align-items: baseline; gap: 18px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.panel-line span { color: #7190be; font-size: 13px; font-weight: 800; }
.panel-line strong { font-size: 16px; }
.hero-panel p { margin: 23px 0 0; color: var(--muted); font-size: 13px; }

.section { padding-block: 94px; }
.intro-section { padding-bottom: 82px; }
.intro-grid { display: grid; grid-template-columns: .75fr 1.5fr 1.15fr; gap: 45px; align-items: start; }
.intro-grid h2 { margin-bottom: 0; font-size: clamp(29px, 3vw, 42px); }
.intro-grid > p:last-child { margin-bottom: 0; color: var(--muted); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 34px; }
.section-heading h2, .scope-section h2, .prepare-section h2 { margin-bottom: 0; font-size: clamp(30px, 3.1vw, 44px); }
.section-heading > p { max-width: 390px; margin-bottom: 4px; color: var(--muted); }
.service-section { padding-top: 44px; }
.service-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.service-card { min-height: 265px; padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.service-card:hover { border-color: #a9c2e8; box-shadow: 0 12px 28px rgba(25,58,105,.06); }
.card-index { display: block; margin-bottom: 25px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.service-card h3 { margin-bottom: 12px; font-size: 24px; }
.service-card > p { max-width: 480px; margin-bottom: 20px; color: var(--muted); }
.service-card .service-tags { margin-bottom: 0; color: var(--blue-dark); font-size: 12px; font-weight: 700; }
.scope-section { background: var(--paper); border-block: 1px solid var(--line); }
.scope-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 12%; }
.scope-grid > div > p:last-child { max-width: 430px; margin: 22px 0 0; color: var(--muted); }
.scope-list { margin: 0; padding: 0; list-style: none; }
.scope-list li { display: flex; gap: 24px; padding: 0 0 23px; margin-bottom: 23px; border-bottom: 1px solid var(--line); }
.scope-list li:last-child { border-bottom: 0; padding-bottom: 0; margin-bottom: 0; }
.scope-list li > span { color: var(--blue); font-size: 13px; font-weight: 800; }
.scope-list h3 { margin-bottom: 6px; font-size: 20px; }
.scope-list p { margin-bottom: 0; color: var(--muted); }
.prepare-section { background: #fff; }
.prepare-box { display: grid; grid-template-columns: 1.3fr .7fr; gap: 9%; align-items: center; padding: 48px; background: #eaf2ff; border-radius: 20px; }
.prepare-box > div > p:last-child { max-width: 630px; margin: 23px 0 0; color: #40556e; }
.prepare-note { padding: 26px 29px; background: white; border-radius: 13px; }
.prepare-note strong { display: block; margin-bottom: 13px; }
.prepare-note ul { margin: 0; padding-left: 18px; color: var(--muted); }
.contact-section { padding-top: 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10%; padding-top: 68px; border-top: 1px solid var(--line); }
.contact-grid h2 { margin-bottom: 19px; font-size: clamp(30px, 3.1vw, 44px); }
.contact-grid p:last-child { max-width: 490px; color: var(--muted); }
.contact-links { display: grid; gap: 12px; align-content: start; }
.contact-links a { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 11px; text-decoration: none; }
.contact-links a:hover { border-color: #a9c2e8; background: var(--paper); }
.contact-links span { color: var(--muted); font-size: 13px; }
.contact-links strong { color: var(--blue-dark); font-size: 16px; overflow-wrap: anywhere; }
.site-footer { background: #17273e; color: white; }
.footer-inner { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding-block: 43px; }
.footer-inner strong { font-size: 14px; }
.footer-inner p { margin: 8px 0 0; color: #b7c7d9; font-size: 13px; }
.footer-inner > span { color: #a8b9ce; font-size: 12px; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 42px; padding-block: 70px; }
  .hero-panel { max-width: 620px; }
  .intro-grid { grid-template-columns: 1fr 1.5fr; gap: 20px; }
  .intro-grid > p:last-child { grid-column: 2; }
  .scope-grid { gap: 7%; }
}

@media (max-width: 620px) {
  .wrap { width: min(100% - 32px, 1160px); }
  .header-inner { align-items: flex-start; flex-direction: column; gap: 14px; padding-block: 15px; }
  .site-header nav { gap: 10px 22px; }
  .brand-text { font-size: 13px; }
  .hero-grid { padding-block: 54px 62px; }
  h1 { font-size: clamp(39px, 10vw, 58px); }
  .hero-intro { font-size: 16px; }
  .hero-panel { padding: 23px; }
  .section { padding-block: 63px; }
  .intro-section { padding-bottom: 32px; }
  .intro-grid, .scope-grid, .prepare-box, .contact-grid { grid-template-columns: 1fr; gap: 15px; }
  .intro-grid > p:last-child { grid-column: auto; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 16px; }
  .service-section { padding-top: 24px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 0; padding: 26px; }
  .prepare-box { padding: 30px 24px; }
  .contact-grid { padding-top: 54px; }
  .contact-links a { display: block; }
  .contact-links strong { display: block; margin-top: 3px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }