:root {
  --ink: #193334;
  --muted: #617778;
  --primary: #0d7f7b;
  --primary-deep: #075e5d;
  --accent: #21a8bc;
  --pale: #eaf8f6;
  --pale-blue: #eef8fb;
  --line: #d9e7e6;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(10, 77, 77, 0.11);
  --radius: 22px;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.narrow { max-width: 820px; }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 1000; padding: 8px 14px; background: var(--ink); color: white; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.94); border-bottom: 1px solid rgba(217, 231, 230, 0.8); backdrop-filter: blur(16px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; color: var(--ink); font-size: 22px; font-weight: 700; letter-spacing: 0.04em; text-decoration: none; }
.global-nav { display: flex; align-items: center; gap: 30px; }
.global-nav > a:not(.button) { color: #405859; font-size: 14px; text-decoration: none; }
.global-nav > a:not(.button):hover { color: var(--primary); }
.menu-button { display: none; width: 44px; height: 44px; padding: 11px; border: 0; border-radius: 10px; background: var(--pale); }
.menu-button > span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--primary-deep); }
.header-back { color: var(--primary-deep); font-size: 14px; font-weight: 600; text-decoration: none; }

.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; padding: 14px 28px; border: 1px solid var(--primary); border-radius: 999px; color: var(--white); background: var(--primary); box-shadow: 0 10px 25px rgba(13, 127, 123, 0.2); font-weight: 650; text-decoration: none; cursor: pointer; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-2px); background: var(--primary-deep); box-shadow: 0 13px 30px rgba(7, 94, 93, 0.24); }
.button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 3px solid rgba(33, 168, 188, .35); outline-offset: 3px; }
.button-small { min-height: 44px; padding: 10px 22px; font-size: 14px; }
.button-white { border-color: var(--white); color: var(--primary-deep); background: var(--white); box-shadow: none; }
.button-white:hover { color: white; background: var(--primary-deep); }
.text-link { color: var(--primary-deep); font-weight: 650; text-decoration: none; }

.hero { position: relative; overflow: hidden; padding: 92px 0 106px; background: radial-gradient(circle at 85% 15%, rgba(49, 190, 203, .16), transparent 32%), linear-gradient(180deg, #fff 0%, #fbfefd 100%); }
.hero::after { content: ""; position: absolute; right: -9%; bottom: -280px; width: 560px; height: 560px; border-radius: 50%; background: var(--pale); z-index: 0; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 72px; }
.eyebrow, .section-kicker { margin: 0 0 14px; color: var(--primary); font-size: 13px; font-weight: 750; letter-spacing: .16em; }
.hero h1 { margin: 0; font-size: clamp(44px, 5.7vw, 78px); line-height: 1.23; letter-spacing: -.045em; font-weight: 660; }
.hero h1 span { color: var(--primary); }
.hero-lead { max-width: 640px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 2; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 38px; }
.hero-visual { position: relative; min-height: 470px; }
.visual-orbit { position: absolute; border: 1px solid rgba(13, 127, 123, .15); border-radius: 50%; }
.visual-orbit-one { inset: 20px 0 30px 25px; }
.visual-orbit-two { inset: 70px 50px 80px 85px; }
.visual-card { position: absolute; border: 1px solid rgba(255, 255, 255, .8); background: rgba(255, 255, 255, .9); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.visual-card-main { top: 88px; right: 40px; width: 290px; padding: 42px; border-radius: 50px 50px 50px 15px; }
.visual-label { color: var(--accent); font-size: 11px; font-weight: 750; letter-spacing: .2em; }
.visual-card-main strong { display: block; margin-top: 17px; color: var(--primary-deep); font-size: 36px; line-height: 1.35; font-weight: 650; letter-spacing: -.03em; }
.visual-card-sub { left: 10px; bottom: 58px; padding: 22px 29px; border-radius: 18px; color: var(--ink); font-size: 16px; font-weight: 650; }

.section { padding: 112px 0; }
.section-soft { background: var(--pale); }
.section h2 { margin: 0; font-size: clamp(31px, 4vw, 48px); line-height: 1.42; letter-spacing: -.025em; font-weight: 620; }
.section-lead { margin: 28px auto 0; color: var(--muted); font-size: 17px; line-height: 2.05; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 50px; }
.section-heading > p { max-width: 390px; margin: 0; color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card { min-height: 285px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .2s ease, box-shadow .2s ease; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card-number { color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: .14em; }
.service-card h3 { margin: 38px 0 15px; font-size: 23px; font-weight: 620; }
.service-card p { margin: 0; color: var(--muted); }
.section-dark { color: white; background: var(--ink); }
.section-heading.light p { color: #c7d9d9; }
.section-dark .section-kicker { color: #7bd4d5; }
.flow-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; padding: 0; margin: 0; list-style: none; }
.flow-list li { display: flex; gap: 18px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, .2); }
.flow-list li > span { display: grid; flex: 0 0 42px; width: 42px; height: 42px; place-items: center; border-radius: 50%; color: var(--primary-deep); background: #8fdddd; font-weight: 750; }
.flow-list strong { font-size: 20px; font-weight: 620; }
.flow-list p { margin: 7px 0 0; color: #c7d9d9; }
.cta-section { padding-top: 84px; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 44px; padding: 56px 62px; border-radius: 28px; color: white; background: linear-gradient(115deg, var(--primary-deep), var(--primary) 64%, var(--accent)); }
.cta-panel .section-kicker { color: #a9ebeb; }
.cta-panel h2 { font-size: clamp(27px, 3.6vw, 42px); }
.cta-panel p:last-child { margin-bottom: 0; color: #d8eeee; }

.page-hero { padding: 76px 0 70px; background: linear-gradient(120deg, var(--pale), var(--pale-blue)); }
.page-hero h1 { margin: 0; font-size: clamp(38px, 5vw, 60px); line-height: 1.3; font-weight: 630; letter-spacing: -.035em; }
.page-hero p:last-child { max-width: 690px; margin: 20px 0 0; color: var(--muted); font-size: 17px; }
.contact-section { padding-top: 80px; }
.contact-layout { max-width: 820px; }
.form-panel { background: white; }
.form-row { display: grid; grid-template-columns: 1fr; gap: 0; }
.form-field { margin-bottom: 24px; }
.form-field label { display: block; margin-bottom: 9px; font-size: 14px; font-weight: 650; }
.required, .optional { margin-left: 7px; padding: 2px 7px; border-radius: 999px; font-size: 10px; vertical-align: 1px; }
.required { color: #a94743; background: #fff0ef; }
.optional { color: var(--muted); background: #edf3f3; }
input, select, textarea { width: 100%; border: 1px solid #cbdcdb; border-radius: 9px; color: var(--ink); background: #fff; }
input, select { min-height: 54px; padding: 12px 14px; }
textarea { padding: 14px; resize: vertical; }
input::placeholder, textarea::placeholder { color: #9aacac; }
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
.privacy-check { display: flex; align-items: flex-start; gap: 11px; margin: 3px 0 24px; font-size: 14px; cursor: pointer; }
.privacy-check input { flex: 0 0 19px; width: 19px; min-height: 19px; margin-top: 4px; accent-color: var(--primary); }
.privacy-check a { color: var(--primary-deep); }
.form-submit { width: 100%; border: 0; }
.form-submit:disabled { cursor: wait; opacity: .72; }
.form-note { margin: 14px 0 0; color: var(--muted); font-size: 12px; text-align: center; }
.form-status { display: none; margin: 0 0 18px; padding: 13px 15px; border-radius: 9px; font-size: 14px; }
.form-status.is-error, .form-status.is-success { display: block; }
.form-status.is-error { color: #8a3835; background: #fff0ef; }
.form-status.is-success { color: var(--primary-deep); background: var(--pale); }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.legal-content { max-width: 850px; }
.legal-content > p:first-child { margin-top: 0; }
.legal-content h2 { margin: 52px 0 12px; font-size: 23px; }
.legal-content p { color: var(--muted); }
.legal-content a { color: var(--primary-deep); }
.legal-date { margin-top: 52px; font-size: 14px; }

.site-footer { padding: 62px 0 24px; color: #cbdada; background: #10292a; }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 44px; }
.brand-footer { color: white; }
.footer-grid p { margin: 15px 0 0; font-size: 13px; }
.footer-links { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; font-size: 13px; }
.footer-links a { color: #dce8e8; text-decoration: none; }
.footer-links a:hover { color: white; }
.copyright { margin-top: 42px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 11px; letter-spacing: .08em; }

@media (max-width: 900px) {
  .global-nav { position: absolute; top: 76px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 16px 24px 24px; border-bottom: 1px solid var(--line); background: white; box-shadow: 0 18px 35px rgba(25, 51, 52, .09); }
  .global-nav.is-open { display: flex; }
  .global-nav > a:not(.button) { padding: 13px 4px; }
  .menu-button { display: block; }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-visual { min-height: 350px; max-width: 520px; width: 100%; margin-inline: auto; }
  .visual-card-main { top: 50px; }
  .visual-card-sub { bottom: 36px; }
  .card-grid, .flow-list { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .cta-panel { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .header-inner { min-height: 68px; }
  .brand { font-size: 19px; }
  .global-nav { top: 68px; }
  .hero { padding: 62px 0 66px; }
  .hero h1 { font-size: 42px; }
  .hero-lead { margin-top: 22px; font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 17px; }
  .hero-actions .button { width: 100%; }
  .text-link { text-align: center; }
  .hero-visual { min-height: 280px; }
  .visual-card-main { top: 34px; right: 10px; width: 230px; padding: 30px; }
  .visual-card-main strong { font-size: 29px; }
  .visual-card-sub { left: 0; bottom: 23px; padding: 16px 21px; font-size: 14px; }
  .section { padding: 76px 0; }
  .section h2 { font-size: 29px; }
  .section-heading { margin-bottom: 34px; }
  .service-card { padding: 28px; }
  .service-card h3 { margin-top: 26px; }
  .cta-section { padding-top: 62px; }
  .cta-panel { padding: 38px 26px; border-radius: 22px; }
  .cta-panel .button { width: 100%; }
  .page-hero { padding: 52px 0 48px; }
  .page-hero h1 { font-size: 38px; }
  .contact-section { padding-top: 56px; }
  .footer-grid { flex-direction: column; }
  .footer-links { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}