:root {
  --sea-100: #eafaff;
  --sea-200: #d3f5fc;
  --sea-300: #a5e5f3;
  --sea-400: #69cde6;
  --sea-500: #2699c5;
  --sea-600: #15789e;
  --cream: #fffdf5;
  --coral: #ff6960;
  --navy: #073e53;
  --white: #fff;
  --line: #e8e9e3;
  --body-font: "Noto Sans JP", sans-serif;
  --heading-font: "M PLUS Rounded 1c", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; color: var(--navy); background: var(--cream); font-family: var(--body-font); font-size: 20px; font-weight: 500; line-height: 1.75; overflow-wrap: anywhere; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3, .brand, .button, .step-number { font-family: var(--heading-font); }
h1, h2, h3 { font-weight: 800; line-height: 1.45; }
h2 { margin-bottom: 32px; text-align: center; font-size: clamp(30px, 3.3vw, 47px); letter-spacing: .025em; }
h3 { font-size: 28px; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid var(--navy); outline-offset: 5px; }
.container { position: relative; width: min(1280px, calc(100% - 112px)); margin-inline: auto; }
.section { padding-block: 48px; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 84px; height: 84px; color: var(--sea-500); fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; border: 0; clip-path: inset(50%); overflow: hidden; white-space: nowrap; }
.skip-link { position: absolute; z-index: 10; top: 10px; left: 16px; padding: 8px 16px; background: var(--white); border: 2px solid var(--navy); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 74px; min-width: 0; padding: 12px 42px; border: 3px solid transparent; border-radius: 999px; font-size: 25px; font-weight: 800; line-height: 1.5; text-align: center; transition: background-color .15s, border-color .15s; }
.button-coral { color: var(--white); background: var(--coral); }
.button-coral:hover { background: #ec554e; border-color: #ec554e; }
.button-outline { color: var(--sea-600); background: var(--white); border-color: var(--sea-400); }
.button-outline:hover { background: var(--sea-100); border-color: var(--sea-500); }

.site-header { background: var(--cream); }
.header-inner { min-height: 92px; display: flex; align-items: center; gap: 42px; }
.brand { flex-shrink: 0; display: inline-flex; align-items: center; gap: 10px; line-height: 1.2; }
.brand img { width: 80px; height: 74px; object-fit: contain; }
.brand-type { display: grid; text-align: center; gap: 3px; }
.brand-name { font-size: 31px; font-weight: 900; white-space: nowrap; letter-spacing: .025em; }
.brand-en { font-size: 13px; font-weight: 800; }
.header-nav { display: flex; align-items: center; justify-content: flex-end; gap: 40px; margin-left: auto; font-size: 18px; font-weight: 700; white-space: nowrap; }
.header-nav a:hover, .footer-links a:hover { text-decoration: underline; text-underline-offset: 5px; }
.header-contact { min-height: 64px; padding: 10px 32px; font-size: 21px; white-space: nowrap; }

.ocean-section { position: relative; background-color: var(--sea-200); background-image: url("images/hero-sea.png"), linear-gradient(180deg, var(--sea-200), var(--sea-400)); background-size: 100% 100%; background-position: center; }
.hero { isolation: isolate; }
.hero::after, .pricing::after { content: ""; position: absolute; right: 0; bottom: -1px; left: 0; height: 32px; background: var(--cream); clip-path: polygon(0 34%, 5% 68%, 10% 42%, 17% 76%, 24% 66%, 32% 92%, 42% 69%, 52% 84%, 61% 66%, 70% 91%, 80% 58%, 90% 87%, 96% 62%, 100% 33%, 100% 100%, 0 100%); }
.hero-inner { min-height: 650px; display: grid; grid-template-columns: 1.05fr 1fr; align-items: start; }
.hero-copy { position: relative; z-index: 2; padding: 78px 0 128px 28px; }
h1 { font-size: clamp(48px, 5.2vw, 76px); line-height: 1.25; letter-spacing: .01em; }
h1 span { display: block; white-space: nowrap; }
.hero-copy > p { margin-top: 25px; font-weight: 700; font-size: 23px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 32px; }
.hero-actions .button { padding-inline: 36px; }
.hero-art { position: absolute; z-index: 1; top: 0; right: -36px; width: 58%; height: 100%; pointer-events: none; }
.hero-otter { position: absolute; right: -20px; bottom: 18px; width: 100%; height: 400px; object-fit: contain; object-position: center bottom; }
.attendance-card { position: absolute; top: 48px; right: 16px; width: 365px; padding: 20px 20px 12px; background: rgba(255, 255, 255, .97); border: 3px solid #c4dfeb; border-radius: 16px; box-shadow: 0 5px 13px #07547316; font-size: 16px; line-height: 1.5; transform: rotate(.3deg); }
.attendance-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.attendance-heading strong { font-size: 20px; }
.attendance-month { display: flex; align-items: center; gap: 9px; font-size: 15px; font-weight: 700; white-space: nowrap; }
.attendance-month > span { display: inline-grid; place-items: center; width: 22px; height: 22px; border: 1px solid #e3edf1; border-radius: 50%; font-size: 24px; line-height: 1; }
.attendance-card table { width: 100%; border-collapse: collapse; font-size: 15px; }
.attendance-card th, .attendance-card td { padding: 7px 3px; border-top: 1px solid #dfebef; white-space: nowrap; }
.attendance-card th { text-align: left; font-weight: 700; }
.attendance-card td { padding-inline: 10px; text-align: center; border-left: 1px solid #edf1f3; font-weight: 700; }
.attendance-card td.attendance-status { padding-inline: 4px; color: var(--sea-500); font-size: 22px; line-height: 1; }
.avatar { display: inline-grid; place-items: center; width: 27px; height: 27px; margin-right: 9px; border-radius: 50%; font-size: 12px; vertical-align: middle; }
.avatar-one { background: #fff0cc; }
.avatar-two { background: #d6efea; }
.avatar-three { background: #e2e9d7; }

.worries { padding-top: 28px; padding-bottom: 40px; }
.worry-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.worry-card { min-width: 0; padding: 12px 15px 20px; border: 2px solid var(--line); border-radius: 16px; background: #ffffffa8; text-align: center; }
.worry-card img { width: 100%; height: 225px; object-fit: contain; }
.worry-card h3 { margin-top: 4px; font-size: 26px; }

.workflow { position: relative; background: var(--sea-200); padding-top: 40px; padding-bottom: 48px; }
.workflow::after { content: ""; position: absolute; height: 16px; right: 0; bottom: -1px; left: 0; background: var(--cream); clip-path: polygon(0 45%, 10% 25%, 23% 62%, 38% 40%, 52% 80%, 66% 35%, 82% 60%, 94% 30%, 100% 55%, 100% 100%, 0 100%); }
.workflow h2 { margin-bottom: 0; }
.section-lead { text-align: center; font-size: 27px; font-weight: 700; }
.flow-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 36px; margin-top: 22px; }
.flow-step { position: relative; min-width: 0; text-align: center; }
.flow-circle { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 100%; max-width: 265px; aspect-ratio: 1; margin-inline: auto; padding: 15px; border-radius: 50%; background: #ffffff8c; }
.step-number { display: block; color: var(--sea-500); font-size: 36px; font-weight: 800; line-height: 1.2; }
.flow-circle h3 { line-height: 1.3; }
.flow-icon { width: 124px; height: 124px; margin-top: 14px; }
.flow-step:not(:last-child)::after { content: "→"; position: absolute; top: 93px; right: -34px; font-size: 48px; line-height: 1; }
.flow-step > p { max-width: 270px; margin: 18px auto 0; font-size: 18px; line-height: 1.75; text-align: left; }

.features { padding-top: 32px; padding-bottom: 40px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px 24px; }
.feature-card { min-width: 0; padding: 25px 30px 24px; text-align: center; border: 2px solid var(--line); border-radius: 15px; background: #ffffffa8; }
.icon-wrap { position: relative; display: inline-block; margin-bottom: 9px; }
.icon-wrap::after, .mail-art::after { content: ""; position: absolute; top: 20%; right: -28px; width: 24px; height: 35px; background: linear-gradient(127deg, transparent 43%, #ffc94c 44% 54%, transparent 55%) left top / 16px 15px no-repeat, linear-gradient(155deg, transparent 43%, #ffc94c 44% 54%, transparent 55%) right center / 18px 15px no-repeat, linear-gradient(10deg, transparent 43%, #ffc94c 44% 54%, transparent 55%) right bottom / 16px 13px no-repeat; }
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { max-width: 305px; margin-inline: auto; font-size: 19px; line-height: 1.7; }

.pricing { padding-top: 34px; padding-bottom: 44px; background-position: center 65%; }
.pricing-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: stretch; gap: 28px; max-width: 1100px; margin-inline: auto; padding-top: 16px; }
.plan-card { position: relative; display: flex; flex-direction: column; min-width: 0; padding: 30px 38px 28px; border: 3px solid #c5dfeb; border-radius: 15px; background: rgba(255,255,255,.97); text-align: center; box-shadow: 0 4px 9px #07547308; }
.plan-card h3 { font-size: 34px; }
.plan-subtitle { margin-top: 4px; font-size: 20px; }
.plan-benefits { display: grid; gap: 8px; margin: 26px auto 24px; padding-left: 0; text-align: left; font-size: 20px; }
.plan-benefits li { position: relative; padding-left: 32px; }
.plan-benefits li::before { content: "✓"; position: absolute; top: .3em; left: 0; display: grid; place-items: center; width: 23px; height: 23px; color: var(--white); background: var(--sea-400); border-radius: 50%; font-size: 17px; font-weight: 700; line-height: 1; }
.plan-bottom { margin-top: auto; padding-top: 18px; border-top: 2px solid #dfe8eb; }
.plan-bottom p { font-size: 20px; font-weight: 700; }
.plan-bottom .button { width: 100%; min-height: 67px; margin-top: 16px; }
.plan-recommended { border-color: var(--coral); }
.recommend-label { position: relative; width: calc(100% + 76px); margin: -46px -38px 12px; padding: 2px 12px 3px; color: var(--white); background: var(--coral); border-radius: 12px 12px 0 0; font-size: 22px; font-weight: 700; line-height: 1.5; }

.onboarding { padding-top: 32px; padding-bottom: 34px; }
.onboarding-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 70px; max-width: 1160px; margin-inline: auto; }
.onboarding-step { position: relative; min-width: 0; text-align: center; }
.onboarding-step h3 { font-size: 28px; }
.onboarding-art { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; height: 180px; margin: 8px auto 0; }
.onboarding-art img { width: 245px; height: 180px; object-fit: contain; }
.mail-art { width: 170px; }
.mail-art .icon { width: 140px; height: 140px; transform: rotate(-8deg); }
.mail-art::after { top: 35px; right: -10px; transform: rotate(-30deg); }
.onboarding-step:not(:last-child)::after { content: "›"; position: absolute; top: 135px; right: -48px; color: var(--sea-500); font-size: 60px; font-weight: 400; line-height: 1; }
.onboarding-step > p { margin-top: 4px; font-size: 21px; font-weight: 600; line-height: 1.6; }

.faq { padding-top: 30px; padding-bottom: 42px; background: var(--white); }
.faq-inner { max-width: 1050px; }
.faq h2 { margin-bottom: 20px; }
.faq-list { display: grid; gap: 10px; }
.faq details { border: 2px solid #e2e8eb; border-radius: 12px; background: var(--white); }
.faq summary { position: relative; padding: 12px 66px 12px 30px; font-size: 21px; font-weight: 700; line-height: 1.6; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; top: 50%; right: 26px; font-size: 30px; font-weight: 400; line-height: 1; transform: translateY(-50%); }
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid #e2e8eb; }
.faq details > p { padding: 18px 30px 22px; font-size: 19px; line-height: 1.9; }

.contact { background-position: center 65%; }
.contact::before { content: ""; position: absolute; top: -1px; right: 0; left: 0; height: 20px; background: var(--white); clip-path: polygon(0 0,100% 0,100% 30%,92% 50%,80% 28%,65% 60%,50% 30%,35% 60%,20% 30%,8% 60%,0 35%); }
.contact-inner { display: flex; align-items: center; min-height: 265px; padding-left: 340px; }
.cta-otter { position: absolute; left: 20px; bottom: 0; width: 310px; height: 250px; object-fit: contain; object-position: center bottom; }
.contact-copy { position: relative; padding-block: 36px; text-align: center; }
.contact h2 { margin-bottom: 18px; font-size: 39px; }
.contact .button { min-width: 340px; }

.site-footer { color: var(--white); background: var(--navy); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; min-height: 160px; padding-block: 24px; }
.footer-brand img { background: transparent; }
.footer-brand .brand-name { font-size: 34px; }
.footer-brand .brand-en { font-size: 16px; }
.footer-info { text-align: right; font-size: 15px; color: #d3e6ed; }
.footer-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 0; margin-bottom: 8px; font-size: 16px; }
.footer-links a + a { margin-left: 20px; padding-left: 20px; border-left: 1px solid #87aab7; }
.footer-info p { margin-bottom: 2px; }
.footer-info small { font-size: 14px; }

@media (max-width: 1100px) {
  body { font-size: 17px; }
  .container { width: calc(100% - 64px); }
  .header-inner { gap: 24px; min-height: 80px; }
  .brand img { width: 60px; height: 60px; }
  .brand-name { font-size: 24px; }
  .brand-en { font-size: 11px; }
  .header-nav { gap: 24px; font-size: 15px; }
  .header-contact { min-height: 52px; padding-inline: 24px; font-size: 18px; }
  .hero-inner { min-height: 545px; }
  .hero-copy { padding: 65px 0 100px; }
  h1 { font-size: 56px; }
  .hero-copy > p { font-size: 19px; }
  .hero-actions { gap: 14px; }
  .hero-actions .button { padding-inline: 24px; min-height: 62px; font-size: 21px; }
  .hero-art { right: -16px; width: 56%; }
  .hero-otter { height: 360px; right: 0; }
  .attendance-card { top: 30px; width: 300px; right: 0; padding: 15px 12px 8px; }
  .attendance-heading strong { font-size: 17px; }
  .attendance-month { font-size: 12px; gap: 5px; }
  .attendance-card table { font-size: 12px; }
  .attendance-card td { padding-inline: 8px; }
  .avatar { width: 23px; height: 23px; margin-right: 6px; font-size: 10px; }
  .worry-card img { height: 180px; }
  .worry-card h3 { font-size: 21px; }
  .flow-grid { gap: 28px; }
  .flow-step:not(:last-child)::after { top: 70px; right: -27px; font-size: 38px; }
  .flow-circle { padding: 12px; }
  .step-number { font-size: 29px; }
  .flow-circle h3 { font-size: 24px; }
  .flow-icon { width: 90px; height: 90px; margin-top: 8px; }
  .flow-step > p { font-size: 16px; }
  .feature-card { padding: 22px; }
  .feature-card h3 { font-size: 24px; }
  .feature-card p { font-size: 17px; }
  .plan-card { padding: 26px 28px 24px; }
  .plan-card h3 { font-size: 28px; }
  .plan-subtitle, .plan-benefits, .plan-bottom p { font-size: 17px; }
  .recommend-label { width: calc(100% + 56px); margin: -42px -28px 12px; font-size: 20px; }
  .onboarding-grid { gap: 44px; }
  .onboarding-step h3 { font-size: 25px; }
  .onboarding-step:not(:last-child)::after { right: -34px; }
  .onboarding-step > p { font-size: 18px; }
  .contact-inner { padding-left: 260px; }
  .cta-otter { left: 0; width: 250px; height: 230px; }
  .contact h2 { font-size: 30px; }
}

@media (max-width: 900px) {
  .container { width: calc(100% - 48px); }
  .header-nav { display: none; }
  .header-contact { margin-left: auto; }
  .section { padding-block: 38px; }
  h2 { font-size: 34px; margin-bottom: 24px; }
  .hero-inner { min-height: 570px; }
  .hero-copy { padding-top: 46px; }
  h1 { font-size: 49px; }
  .hero-copy > p { max-width: 410px; font-size: 17px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 12px; margin-top: 24px; }
  .hero-actions .button { min-width: 205px; min-height: 56px; font-size: 20px; }
  .hero-art { width: 58%; right: -12px; }
  .hero-otter { bottom: 5px; height: 335px; }
  .attendance-card { top: 65px; width: 275px; }
  .attendance-heading { gap: 5px; }
  .attendance-month { font-size: 11px; }
  .attendance-month > span { width: 18px; height: 18px; font-size: 20px; }
  .attendance-card table { font-size: 11px; }
  .attendance-card th, .attendance-card td { padding-block: 5px; }
  .attendance-card td { padding-inline: 6px; }
  .attendance-card td.attendance-status { font-size: 19px; }
  .worry-grid, .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .worry-card img { height: 210px; }
  .worry-card h3 { font-size: 22px; }
  .flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 50px; max-width: 660px; margin-inline: auto; margin-top: 28px; }
  .flow-circle { max-width: 240px; }
  .flow-circle h3 { font-size: 28px; }
  .flow-icon { width: 110px; height: 110px; margin-top: 10px; }
  .flow-step > p { font-size: 17px; }
  .flow-step:not(:last-child)::after { top: 88px; right: -40px; }
  .flow-step:nth-child(2)::after { display: none; }
  .section-lead { font-size: 23px; }
  .pricing-grid { gap: 20px; }
  .plan-card { padding: 24px 22px; }
  .plan-card h3 { font-size: 26px; }
  .plan-subtitle, .plan-benefits, .plan-bottom p { font-size: 16px; }
  .plan-benefits { gap: 12px; }
  .recommend-label { width: calc(100% + 44px); margin: -40px -22px 12px; }
  .plan-bottom .button { min-height: 58px; padding-inline: 12px; font-size: 22px; }
  .onboarding-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 40px; }
  .onboarding-step:nth-child(2)::after { display: none; }
  .onboarding-step:not(:last-child)::after { right: -31px; }
  .faq summary { font-size: 18px; }
  .faq details > p { font-size: 17px; }
  .contact-inner { min-height: 240px; padding-left: 210px; }
  .cta-otter { width: 215px; height: 210px; left: -10px; }
  .contact h2 { font-size: 27px; }
  .contact .button { min-width: 260px; min-height: 62px; font-size: 22px; }
  .footer-inner { gap: 24px; }
  .footer-brand .brand-name { font-size: 26px; }
  .footer-brand .brand-en { font-size: 13px; }
  .footer-links { font-size: 13px; }
  .footer-links a + a { margin-left: 12px; padding-left: 12px; }
}

@media (max-width: 767px) {
  html { scroll-padding-top: 16px; }
  body { font-size: 16px; }
  .container { width: calc(100% - 32px); }
  .section { padding-block: 34px; }
  h2 { font-size: 26px; line-height: 1.5; margin-bottom: 23px; letter-spacing: 0; text-wrap: balance; }
  h3 { font-size: 23px; }
  .button { min-height: 56px; padding: 10px 24px; border-width: 2px; font-size: 20px; }
  .header-inner { min-height: 72px; gap: 10px; }
  .brand { gap: 5px; }
  .brand img { width: 44px; height: 49px; }
  .brand-name { font-size: 21px; }
  .brand-en { font-size: 10px; }
  .header-contact { min-height: 43px; padding: 7px 17px; font-size: 15px; }
  .header-arrow { display: none; }
  .ocean-section { background-size: cover; }
  .hero { background-position: 56% center; }
  .hero-inner { display: flex; flex-direction: column; min-height: 760px; }
  .hero-copy { width: 100%; padding: 34px 0 0; }
  h1 { font-size: clamp(30px, 9.5vw, 48px); line-height: 1.35; letter-spacing: -.025em; }
  .hero-copy > p { margin-top: 18px; font-size: 15px; line-height: 1.85; }
  .hero-actions { flex-direction: row; flex-wrap: nowrap; width: 100%; gap: 10px; margin-top: 22px; }
  .hero-actions .button { flex: 1; min-width: 0; min-height: 53px; padding: 10px 12px; font-size: 17px; }
  .hero-art { position: relative; flex: 1; width: calc(100% + 16px); min-height: 410px; top: auto; right: auto; margin: 18px -8px 0; }
  .hero-otter { right: 0; bottom: 10px; width: 100%; height: 275px; }
  .attendance-card { top: 0; right: 6px; width: 252px; padding: 12px 12px 7px; border-width: 2px; border-radius: 12px; }
  .attendance-heading { margin-bottom: 9px; }
  .attendance-heading strong { font-size: 15px; }
  .attendance-month { font-size: 10px; gap: 4px; }
  .attendance-card table { font-size: 10px; }
  .attendance-card th, .attendance-card td { padding-block: 4px; }
  .avatar { width: 20px; height: 20px; font-size: 9px; }
  .attendance-card td.attendance-status { font-size: 17px; }
  .hero::after, .pricing::after { height: 20px; }
  .worry-grid, .feature-grid, .flow-grid, .pricing-grid, .onboarding-grid { grid-template-columns: minmax(0, 1fr); }
  .worry-grid { gap: 16px; }
  .worry-card { padding: 12px 16px 20px; border-radius: 12px; }
  .worry-card img { height: 215px; }
  .worry-card h3 { font-size: 22px; }
  .workflow h2 { margin-bottom: 9px; }
  .section-lead { font-size: 18px; }
  .flow-grid { gap: 45px; margin-top: 24px; }
  .flow-circle { max-width: 225px; padding: 15px; }
  .step-number { font-size: 30px; }
  .flow-circle h3 { font-size: 27px; }
  .flow-icon { width: 105px; height: 105px; }
  .flow-step > p { max-width: 290px; margin-top: 14px; font-size: 16px; text-align: center; }
  .flow-step:not(:last-child)::after { content: "↓"; top: auto; right: auto; bottom: -38px; left: 50%; font-size: 31px; transform: translateX(-50%); }
  .flow-step:nth-child(2)::after { display: block; }
  .feature-grid { gap: 16px; }
  .feature-card { padding: 26px 24px; }
  .feature-card h3 { font-size: 24px; }
  .feature-card p { font-size: 16px; }
  .icon { width: 80px; height: 80px; }
  .flow-icon { width: 105px; height: 105px; }
  .pricing { background-position: center; }
  .pricing-grid { gap: 38px; padding-top: 0; }
  .plan-card { padding: 26px 22px 24px; border-width: 2px; border-radius: 12px; }
  .plan-card h3 { font-size: 27px; }
  .plan-subtitle { margin-top: 6px; font-size: 15px; }
  .plan-benefits { margin-block: 22px; font-size: 16px; }
  .plan-benefits li { padding-left: 28px; }
  .plan-benefits li::before { width: 20px; height: 20px; font-size: 14px; }
  .plan-bottom { padding-top: 16px; }
  .plan-bottom p { font-size: 16px; }
  .plan-bottom .button { min-height: 56px; font-size: 20px; }
  .recommend-label { margin: -44px -22px 13px; border-radius: 10px 10px 0 0; font-size: 18px; }
  .onboarding-grid { gap: 54px; }
  .onboarding-step h3 { font-size: 25px; }
  .onboarding-art { height: 175px; }
  .onboarding-art img { height: 175px; width: 235px; }
  .mail-art { height: 155px; }
  .mail-art .icon { width: 135px; height: 135px; }
  .onboarding-step > p { font-size: 17px; }
  .onboarding-step:not(:last-child)::after { content: "⌄"; top: auto; right: auto; bottom: -42px; left: 50%; font-size: 40px; transform: translateX(-50%); }
  .onboarding-step:nth-child(2)::after { display: block; }
  .faq-list { gap: 10px; }
  .faq details { border-radius: 9px; }
  .faq summary { padding: 15px 42px 15px 15px; font-size: 16px; line-height: 1.65; }
  .faq summary::after { right: 15px; font-size: 26px; }
  .faq details > p { padding: 15px; font-size: 15px; }
  .contact-inner { min-height: 360px; padding: 28px 0 160px; justify-content: center; }
  .contact-copy { width: 100%; padding-block: 0; }
  .contact h2 { margin-bottom: 18px; font-size: 25px; }
  .contact .button { min-width: 245px; min-height: 56px; font-size: 20px; }
  .cta-otter { bottom: 0; left: 50%; width: 195px; height: 160px; transform: translateX(-50%); }
  .footer-inner { flex-direction: column; gap: 22px; padding-block: 28px; }
  .footer-brand img { width: 60px; height: 60px; }
  .footer-brand .brand-name { font-size: 27px; }
  .footer-brand .brand-en { font-size: 12px; }
  .footer-info { text-align: center; font-size: 13px; }
  .footer-links { justify-content: center; margin-bottom: 12px; font-size: 13px; }
  .footer-info small { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}