:root {
  --ink: #24535a;
  --ink-soft: #4d7074;
  --primary: #58b7c5;
  --primary-strong: #3fa5b4;
  --sky: #dff4fb;
  --mint: #e4f6ee;
  --mint-strong: #a9dbc5;
  --cream: #fffaf0;
  --line: #c8e3e3;
  --white: #fff;
  --shadow: 0 18px 50px rgba(85, 166, 169, .16);
  --radius: 30px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; font-size: 16px; line-height: 1.9; letter-spacing: .025em; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
:focus-visible { outline: 4px solid #ffd86b; outline-offset: 4px; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.section { padding: 112px 0; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 999; padding: 12px 18px; color: var(--ink); background: #fff; border-radius: 12px; box-shadow: var(--shadow); }
.skip-link:focus { top: 16px; }
.eyebrow { margin: 0 0 12px; color: var(--primary-strong); font-size: .78rem; font-weight: 900; letter-spacing: .2em; }
.section-heading { margin-bottom: 52px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.35; letter-spacing: .01em; }
.section-heading > p:last-child { max-width: 760px; margin: 20px 0 0; color: var(--ink-soft); }
.section-heading.centered { text-align: center; }
.section-heading.centered > p:last-child { margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 80; background: rgba(255,255,255,.93); border-bottom: 1px solid rgba(160,213,213,.55); backdrop-filter: blur(14px); }
.header-inner { width: min(1240px, calc(100% - 32px)); min-height: 82px; margin: auto; display: grid; grid-template-columns: 240px 1fr auto; gap: 26px; align-items: center; }
.brand img { width: 210px; }
.header-inner nav { display: flex; justify-content: flex-end; gap: 24px; }
.header-inner nav a { position: relative; text-decoration: none; font-size: .88rem; font-weight: 800; white-space: nowrap; }
.header-inner nav a::after { position: absolute; left: 0; bottom: -5px; width: 0; height: 2px; background: var(--primary); content: ""; transition: width .2s ease; }
.header-inner nav a:hover::after { width: 100%; }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { width: 44px; height: 44px; padding: 11px; display: grid; align-content: center; gap: 5px; border: 1px solid var(--line); border-radius: 50%; background: #fff; cursor: pointer; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary span { display: block; height: 2px; border-radius: 2px; background: var(--primary-strong); }
.mobile-menu > div { position: absolute; right: 0; top: 54px; width: min(300px, calc(100vw - 32px)); padding: 14px; display: grid; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.mobile-menu a { padding: 10px 12px; border-bottom: 1px solid #e6f2ef; text-decoration: none; font-weight: 800; }
.header-cta { display: inline-flex; align-items: center; gap: 14px; min-height: 48px; padding: 0 22px; border-radius: 999px; color: #fff; background: var(--primary-strong); font-size: .88rem; font-weight: 900; text-decoration: none; box-shadow: 0 10px 28px rgba(64,164,179,.2); }

.hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #edf9f7 0%, #e8f7fb 55%, #f6fbf8 100%); }
.hero-shell { position: relative; z-index: 2; min-height: 790px; padding: 64px 0 118px; }
.hero-heading { margin-bottom: 42px; }
.hero-heading h1 { margin: 0; color: var(--primary-strong); font-size: clamp(2.5rem, 4vw, 3.1rem); line-height: 1.25; letter-spacing: -.045em; }
.hero-heading h1 span { white-space: nowrap; }
.hero-body { display: grid; grid-template-columns: minmax(0, .88fr) minmax(500px, 1.12fr); gap: 60px; align-items: center; }
.hero-copy { position: relative; z-index: 3; }
.hero-audience { margin: 0 0 12px; color: var(--ink-soft); font-size: .92rem; font-weight: 800; }
.hero h2 { margin: 0; font-size: clamp(1.65rem, 2.7vw, 2.55rem); line-height: 1.4; letter-spacing: -.02em; }
.hero-lead { max-width: 650px; margin: 26px 0 0; color: var(--ink-soft); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button { min-height: 58px; padding: 0 26px; display: inline-flex; justify-content: center; align-items: center; gap: 20px; border: 2px solid transparent; border-radius: 999px; font-weight: 900; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-3px); }
.button-primary { color: #fff; background: var(--primary-strong); box-shadow: 0 14px 32px rgba(63,165,180,.25); }
.button-secondary { color: var(--primary-strong); background: #fff; border-color: var(--primary); }
.hero-pills { display: flex; flex-wrap: wrap; gap: 9px; margin: 26px 0 0; padding: 0; list-style: none; }
.hero-pills li { padding: 6px 15px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.8); font-size: .78rem; font-weight: 800; }
.hero-visual { position: relative; align-self: stretch; display: flex; align-items: center; }
.hero-photo-wrap { position: relative; width: 100%; }
.hero-photo { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 84px 30px 84px 30px; box-shadow: var(--shadow); }
.hero-mascot { position: absolute; right: -8px; bottom: -6px; width: 132px; filter: drop-shadow(0 12px 12px rgba(69,127,124,.18)); }
.photo-note { position: absolute; left: -28px; bottom: 20px; max-width: 280px; margin: 0; padding: 14px 20px; border-radius: 18px; background: #fff; font-size: .82rem; font-weight: 900; box-shadow: var(--shadow); }
.hero-orb { position: absolute; border-radius: 50%; background: rgba(184,231,239,.45); }
.hero-orb-one { width: 330px; height: 330px; right: -70px; top: -110px; }
.hero-orb-two { width: 160px; height: 160px; left: 45%; bottom: 30px; background: rgba(178,226,205,.45); }
.hero-wave { position: absolute; z-index: 1; left: -5%; right: -5%; bottom: -74px; height: 150px; border-radius: 50% 50% 0 0; background: #fff; }

.two-col-heading { display: grid; grid-template-columns: 1.1fr .9fr; gap: 72px; align-items: end; }
.two-col-heading > p { margin: 0 0 10px; color: var(--ink-soft); }
.three-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.three-steps article { padding: 34px; border: 2px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 12px 35px rgba(104,181,184,.1); transition: background-color .28s ease, border-color .28s ease; }
.three-steps span { width: 54px; height: 54px; display: grid; place-items: center; border: 2px solid var(--primary); border-radius: 50%; color: var(--primary-strong); background: var(--sky); font-weight: 900; }
.three-steps h3 { margin: 24px 0 8px; font-size: 1.3rem; line-height: 1.5; }
.three-steps p { margin: 0; color: var(--ink-soft); font-size: .95rem; }

.problems { background: linear-gradient(180deg, #edfaf4, #f8fcfb); }
.qa-story { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.qa-card { padding: 34px; border: 1px solid #c6e5da; border-radius: 30px; background: #fff; box-shadow: 0 18px 40px rgba(85,164,151,.1); transition: background-color .28s ease, border-color .28s ease; }
.qa-question, .qa-answer { display: grid; grid-template-columns: 46px 1fr; gap: 18px; align-items: start; }
.qa-question span, .qa-answer span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; font-weight: 900; }
.qa-question span { color: #fff; background: var(--primary-strong); }
.qa-answer span { color: var(--ink); background: var(--mint-strong); }
.qa-question h3 { margin: 3px 0 22px; font-size: 1.16rem; line-height: 1.65; }
.qa-answer p { margin: 2px 0 0; color: var(--ink-soft); }

.feature-story { background: #fff; }
.feature-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: center; }
.feature-image-wrap { position: relative; }
.feature-image-wrap::before { position: absolute; inset: -18px 40px 24px -18px; z-index: -1; border-radius: 48px 22px 48px 22px; background: var(--sky); content: ""; }
.feature-image { border-radius: 48px 22px 48px 22px; box-shadow: var(--shadow); }
.feature-image-wrap img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.feature-copy h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.4; }
.feature-copy > p:not(.eyebrow) { color: var(--ink-soft); }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 14px 15px 14px 44px; border-radius: 16px; background: var(--mint); font-weight: 800; }
.check-list li::before { position: absolute; left: 16px; top: 14px; content: "✓"; color: var(--primary-strong); }

.services { background: linear-gradient(180deg, #f4fbfc, #fff); }
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 34px; align-items: stretch; }
.service-card { overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 26px; background: #fff; box-shadow: var(--shadow); }
.service-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.service-card > h2 { margin: 0; padding: 20px 26px; color: #fff; background: var(--primary-strong); font-size: 1.45rem; line-height: 1.45; }
.service-body { flex: 1; padding: 26px; display: flex; flex-direction: column; }
.service-body p { margin: 0; color: var(--ink-soft); font-size: .96rem; }
.service-body a { margin-top: auto; padding-top: 28px; display: inline-flex; align-items: center; gap: 12px; color: var(--primary-strong); font-weight: 900; text-decoration: none; }
.service-body a span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--primary); }

.contracts { background: var(--cream); }
.contract-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contract-grid article { padding: 36px 30px; border-radius: 24px; background: #fff; border: 1px solid #d9ece5; text-align: center; transition: background-color .28s ease, border-color .28s ease; }
.contract-grid span { color: var(--primary-strong); font-size: .75rem; font-weight: 900; letter-spacing: .18em; }
.contract-grid h3 { margin: 14px 0 10px; font-size: 1.25rem; }
.contract-grid p { margin: 0; color: var(--ink-soft); }

.safety { background: linear-gradient(135deg, #dff5ed, #e8f7fb); }
.safety-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 72px; align-items: start; }
.safety-grid > div:first-child { position: sticky; top: 120px; }
.safety-grid h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.4; }
.safety-grid > div:first-child p:not(.eyebrow) { color: var(--ink-soft); }
.safety-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.safety-list article { padding: 28px; border: 1px solid transparent; border-radius: 22px; background: rgba(255,255,255,.82); transition: background-color .28s ease, border-color .28s ease; }
.safety-list b { color: var(--primary-strong); }
.safety-list h3 { margin: 10px 0 8px; font-size: 1.08rem; }
.safety-list p { margin: 0; color: var(--ink-soft); font-size: .9rem; }

.flow-list { position: relative; display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; margin: 0; padding: 0; list-style: none; }
.flow-list::before { position: absolute; left: 6%; right: 6%; top: 28px; height: 3px; background: var(--line); content: ""; }
.flow-list li { position: relative; z-index: 1; text-align: center; }
.flow-list span { width: 58px; height: 58px; margin: auto; display: grid; place-items: center; border: 3px solid #fff; border-radius: 50%; color: #fff; background: var(--primary); box-shadow: 0 0 0 2px var(--line); font-weight: 900; }
.flow-list h3 { margin: 18px 0 8px; font-size: 1rem; }
.flow-list p { margin: 0; color: var(--ink-soft); font-size: .8rem; line-height: 1.7; }

.mid-cta { padding: 78px 0; color: #fff; background: linear-gradient(120deg, #53b4c2, #82cdb4); }
.mid-cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; }
.mid-cta .eyebrow { color: #fff; opacity: .85; }
.mid-cta h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.4; }
.mid-cta p:not(.eyebrow) { margin-bottom: 0; }
.button-light { color: var(--primary-strong); background: #fff; white-space: nowrap; }

.faq { background: #f5fbf9; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.faq details { border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.faq summary { min-height: 84px; padding: 20px 54px 20px 22px; display: flex; gap: 14px; align-items: center; cursor: pointer; list-style: none; font-weight: 900; line-height: 1.6; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { position: absolute; right: 24px; content: "+"; color: var(--primary-strong); font-size: 1.6rem; transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary span { color: var(--primary-strong); font-size: .78rem; }
.faq details p { margin: 0; padding: 0 24px 24px 70px; color: var(--ink-soft); }

.contact { background: linear-gradient(180deg, #fff, #ecf8f5); }
.contact-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 70px; align-items: start; }
.contact-intro { position: sticky; top: 120px; }
.contact-intro h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.15rem); line-height: 1.4; }
.contact-intro > p:not(.eyebrow) { color: var(--ink-soft); }
.contact-intro dl { margin-top: 34px; }
.contact-intro dl div { padding: 14px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 110px 1fr; }
.contact-intro dt { color: var(--ink-soft); font-size: .85rem; }
.contact-intro dd { margin: 0; font-weight: 900; }
.contact-intro dd a { color: var(--primary-strong); font-size: 1.4rem; text-decoration: none; }
.contact-form { padding: 42px; border-radius: 32px; background: #fff; box-shadow: var(--shadow); }
.form-note { margin: 0 0 24px; text-align: right; font-size: .8rem; }
.form-note span, .form-row em, .privacy-check em { color: #bf6666; font-style: normal; }
.form-row { margin-bottom: 24px; }
.form-row label { display: block; margin-bottom: 7px; font-weight: 900; }
.form-row input, .form-row select, .form-row textarea { width: 100%; padding: 14px 16px; border: 1px solid #afd6d5; border-radius: 12px; color: var(--ink); background: #fbfefd; }
.form-row input, .form-row select { min-height: 52px; }
.form-row textarea { resize: vertical; }
.privacy-check { display: flex; gap: 12px; align-items: flex-start; margin: 8px 0 24px; }
.privacy-check input { width: 22px; height: 22px; margin-top: 6px; accent-color: var(--primary-strong); }
.privacy-check a { color: var(--primary-strong); font-weight: 900; }
.submit-button { width: 100%; min-height: 62px; border: 0; border-radius: 999px; color: #fff; background: var(--primary-strong); font-weight: 900; cursor: pointer; box-shadow: 0 14px 32px rgba(63,165,180,.2); }
.preview-note { margin: 14px 0 0; color: var(--ink-soft); font-size: .74rem; line-height: 1.6; }

.related { background: #fff; }
.related-list { display: grid; gap: 14px; }
.related-list a { min-height: 112px; padding: 22px 32px; display: grid; grid-template-columns: 130px 220px 1fr; gap: 30px; align-items: center; border-radius: 20px; color: #fff; background: var(--primary-strong); text-decoration: none; box-shadow: 0 12px 28px rgba(64,164,179,.16); transition: transform .2s ease, background .2s ease; }
.related-list a:nth-child(even) { background: #7fc9b2; }
.related-list a:hover { transform: translateY(-4px); background: #72c4d0; }
.related-list img { max-width: 105px; max-height: 60px; object-fit: contain; }
.related-list strong { font-size: 1.25rem; }
.related-list span { justify-self: end; font-weight: 800; }

footer { color: #fff; background: #67bfc9; }
.footer-grid { padding: 72px 0; display: grid; grid-template-columns: 1.3fr .7fr; gap: 80px; }
.footer-brand { display: grid; grid-template-columns: 145px 1fr; gap: 30px; align-items: center; }
.footer-brand img { width: 138px; }
.footer-brand p { margin: 0; }
.footer-catch { margin-bottom: 12px !important; font-size: 1.3rem; font-weight: 900; line-height: 1.6; }
footer nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; align-content: center; }
footer nav a { text-decoration: none; font-weight: 800; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.4); }
.footer-bottom .container { min-height: 66px; display: flex; justify-content: space-between; align-items: center; }
.back-to-top { width: 44px; height: 44px; flex: 0 0 44px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.72); border-radius: 50%; color: #fff; text-decoration: none; font-size: 1.25rem; line-height: 1; transition: transform .2s ease, background-color .2s ease; }

.image-zoom { overflow: hidden; }
.image-zoom img { transition: transform .45s cubic-bezier(.2,.65,.3,1); }

@media (hover: hover) and (pointer: fine) {
  .image-zoom:hover img { transform: scale(1.045); }
  .three-steps article:hover { border-color: #a9dcd8; background: #eef9f7; }
  .qa-card:hover { border-color: #acdcd0; background: #eff9f4; }
  .contract-grid article:hover { border-color: #bddfd4; background: #f0f9f4; }
  .safety-list article:hover { border-color: #a8dcd5; background: #f1fbf8; }
  .back-to-top:hover { transform: translateY(-3px); background: rgba(255,255,255,.16); }
}

@media (max-width: 1000px) {
  .header-inner { grid-template-columns: 1fr auto auto; }
  .header-inner nav { display: none; }
  .mobile-menu { display: block; }
  .hero-shell { min-height: auto; padding-top: 56px; }
  .hero-body { grid-template-columns: 1fr; }
  .hero-copy { max-width: 780px; }
  .hero-visual { max-width: 760px; margin: 0 auto; }
  .two-col-heading, .feature-grid, .safety-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .safety-grid > div:first-child, .contact-intro { position: static; }
  .flow-list { grid-template-columns: repeat(4, 1fr); row-gap: 32px; }
  .flow-list::before { display: none; }
  .related-list a { grid-template-columns: 110px 1fr auto; }
}

@media (max-width: 720px) {
  body { font-size: 15px; line-height: 1.85; }
  .container { width: min(100% - 28px, 620px); }
  .section { padding: 78px 0; }
  .header-inner { min-height: 68px; grid-template-columns: 1fr auto auto; gap: 10px; }
  .brand img { width: 168px; }
  .header-cta { min-height: 44px; padding: 0 14px; font-size: .75rem; }
  .header-cta span { display: none; }
  .hero-shell { padding: 42px 0 100px; }
  .hero-heading { margin-bottom: 28px; }
  .hero-heading h1 { font-size: clamp(1.95rem, 9vw, 2.7rem); line-height: 1.35; letter-spacing: -.03em; }
  .hero-heading h1 span { display: block; width: fit-content; }
  .hero-body { display: flex; flex-direction: column; gap: 22px; }
  .hero-visual { order: 1; width: 100%; padding-bottom: 0; display: block; }
  .hero-copy { order: 2; width: 100%; }
  .hero h2 { margin-top: 0; font-size: 1.55rem; }
  .pc-only { display: none; }
  .hero-lead { margin-top: 18px; }
  .hero-actions { display: grid; }
  .button { width: 100%; padding-inline: 20px; }
  .hero-photo { border-radius: 42px 18px 42px 18px; }
  .hero-mascot { width: 88px; right: 6px; bottom: 6px; }
  .photo-note { display: none; }
  .section-heading { margin-bottom: 34px; }
  .two-col-heading, .three-steps, .qa-story, .service-grid, .contract-grid, .safety-list, .faq-grid, .footer-grid { grid-template-columns: 1fr; }
  .three-steps { gap: 14px; }
  .three-steps article { padding: 26px; }
  .qa-card { padding: 24px 20px; }
  .qa-question, .qa-answer { grid-template-columns: 38px 1fr; gap: 12px; }
  .qa-question span, .qa-answer span { width: 36px; height: 36px; }
  .feature-grid { gap: 38px; }
  .check-list { grid-template-columns: 1fr; }
  .service-card > h2 { font-size: 1.22rem; }
  .service-body { padding: 22px; }
  .flow-list { grid-template-columns: repeat(2, 1fr); gap: 26px 18px; }
  .flow-list p { font-size: .78rem; }
  .mid-cta-inner { grid-template-columns: 1fr; }
  .faq summary { min-height: 76px; }
  .faq details p { padding-left: 24px; }
  .contact-form { padding: 26px 20px; }
  .related-list a { min-height: 102px; padding: 18px; grid-template-columns: 72px 1fr; gap: 16px; }
  .related-list img { max-width: 64px; max-height: 52px; }
  .related-list span { grid-column: 2; justify-self: start; margin-top: -10px; font-size: .78rem; }
  .footer-grid { gap: 38px; }
  .footer-brand { grid-template-columns: 94px 1fr; gap: 18px; }
  .footer-brand img { width: 92px; }
  footer nav { grid-template-columns: 1fr; }
}

@media (max-width: 390px) {
  .header-cta { max-width: 128px; line-height: 1.3; text-align: center; }
  .brand img { width: 150px; }
  .hero h1 { font-size: 1.95rem; }
  .hero h2 { font-size: 1.4rem; }
  .flow-list { grid-template-columns: 1fr; }
  .flow-list li { text-align: left; display: grid; grid-template-columns: 58px 1fr; column-gap: 16px; }
  .flow-list span { grid-row: 1 / span 2; }
  .flow-list h3 { margin: 4px 0 2px; }
  .footer-brand { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .image-zoom:hover img, .back-to-top:hover { transform: none; }
}

.form-message{margin:0 0 24px;padding:18px;border-radius:14px}.form-message.success{background:#e4f6ee;border:1px solid #a9dbc5}.form-message.error{background:#fff3f0;border:1px solid #e8b8ad;color:#854b43}.form-message p,.form-message ul{margin:6px 0 0}.hp-field{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}.submit-button:disabled{opacity:.65;cursor:wait}