:root { color-scheme: light; --navy: #063e78; --blue: #0086d6; --red: #f00; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: #111; font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; font-weight: 700; }
img { display: block; max-width: 100%; }
.container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.hero { min-height: 505px; background: #e8f7fe url("./assets/hero.webp") center / cover no-repeat; color: var(--navy); }
.hero__inner { padding-top: 115px; }
.hero h1 { margin: 0; font-size: clamp(29px, 3.55vw, 52px); line-height: 1.34; letter-spacing: -.035em; }
.hero p { margin: 42px 0 0; font-size: clamp(13px, 1.13vw, 17px); line-height: 1.8; letter-spacing: .07em; }
.campaign { padding-top: 20px; padding-bottom: 80px; }
.section-title { display: flex; align-items: center; gap: 40px; margin: 0 0 54px; color: var(--blue); text-align: center; white-space: nowrap; font-size: 36px; font-weight: 400; letter-spacing: .2em; }
.section-title::before, .section-title::after { content: ""; height: 1px; flex: 1; background: currentColor; }
.coupon { position: relative; overflow: hidden; border: 9px solid #fff; border-radius: 34px; box-shadow: 0 0 25px 4px #81b6db; background: #d8effd; }
.coupon__art { width: 100%; height: auto; }
.coupon__terms { position: absolute; left: 3.4%; top: 78.5%; width: 93.2%; height: 17.2%; display: flex; flex-direction: column; justify-content: center; overflow: hidden; padding: .5% 1.4% .5% calc(1.4% + 8px); font-size: clamp(7px, 1.5vw, 18px); line-height: 1.35; text-align: left; }
.coupon__terms p { margin: 0; }
.coupon__terms p:first-child { padding-inline-start: .75em; }
.coupon__terms .coupon__period { margin-top: 3px; font-size: clamp(8px, 2.15vw, 27px); line-height: 1.25; white-space: nowrap; }
.notice { margin-top: 100px; padding: 30px 60px 34px; border-radius: 10px; background: #fff; color: var(--navy); }
.notice h2 { display: flex; align-items: center; gap: 15px; margin: 0 0 14px; font-size: 23px; }
.notice__icon { display: inline-grid; flex: 0 0 42px; height: 42px; place-items: center; border-radius: 50%; background: var(--navy); color: #fff; font-size: 30px; line-height: 1; }
.notice ul { margin: 0 0 0 57px; padding-left: 18px; color: #151515; font-size: 17px; line-height: 1.7; }
.campaign { background: transparent; }
main { background: linear-gradient(#fff 21%, #e6f5ff 77%); }
.reservation { min-height: 470px; background: #d5eeff url("./assets/reservation-bg.webp") center / cover no-repeat; border-top: 1px solid #acd7f3; }
.reservation__inner { padding-top: 57px; padding-bottom: 70px; }
.section-title--reservation { max-width: 1050px; margin: 0 auto 4px; gap: 50px; color: var(--navy); font-size: 38px; font-weight: 800; letter-spacing: .035em; }
.reservation__inner > p { margin: 28px 0 50px; text-align: center; font-size: 17px; }
.reservation__links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 45px; }
.reservation__button { display: flex; min-height: 174px; align-items: center; gap: 20px; padding: 20px 34px; border-radius: 14px; background: #fff; box-shadow: 0 2px 22px #537da572; color: #111; text-decoration: none; transform: scale(1); transition: transform .22s ease, box-shadow .22s ease; }
.reservation__button:hover { transform: scale(1.1); box-shadow: 0 6px 30px #537da5a0; }
.reservation__button:focus-visible { outline: 3px solid var(--navy); outline-offset: 4px; }
.reservation__mark { width: 82px; height: auto; flex: 0 0 82px; object-fit: contain; }
.reservation__label { flex: 1; font-size: clamp(17px, 1.65vw, 24px); line-height: 1.45; white-space: nowrap; }
.reservation__arrow { width: 18px; height: 18px; flex: 0 0 18px; border-top: 4px solid var(--navy); border-right: 4px solid var(--navy); transform: rotate(45deg); }
@media (max-width: 900px) {
  .hero { min-height: 390px; background-position: 63% center; }
  .hero__inner { padding-top: 65px; }
  .reservation__links { gap: 20px; }
  .reservation__button { gap: 12px; padding: 18px; }
  .reservation__mark { width: 60px; flex-basis: 60px; }
  .reservation__label { font-size: 16px; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 32px, 480px); }
  .hero { min-height: 0; background-position: 59% center; }
  .hero__inner { padding-top: 34px; padding-bottom: 34px; }
  .hero h1 { font-size: clamp(23px, 5.4vw, 32px); line-height: 1.4; text-shadow: 0 1px 6px #ffffffaa; }
  .hero p { max-width: none; margin-top: 24px; font-size: clamp(9px, 3vw, 12px); line-height: 1.5; letter-spacing: 0; text-shadow: 0 1px 5px #fff; }
  .campaign { padding-top: 25px; padding-bottom: 42px; }
  .section-title { gap: 12px; margin-bottom: 24px; font-size: 19px; letter-spacing: .1em; }
  .coupon { border-width: 5px; border-radius: 19px; box-shadow: 0 0 14px #81b6db; background-position: center top; }
  .coupon__terms { padding: .3% 1% .3% calc(1% + 3px); font-size: clamp(6px, 1.55vw, 9px); line-height: 1.2; }
  .coupon__terms .coupon__period { margin-top: 1px; font-size: clamp(7px, 2vw, 13px); letter-spacing: -.04em; }
  .notice { margin-top: 40px; padding: 20px 19px; }
  .notice h2 { gap: 9px; font-size: 17px; }
  .notice__icon { height: 26px; flex-basis: 26px; font-size: 19px; }
  .notice ul { margin-left: 0; padding-left: 19px; font-size: 12px; line-height: 1.65; }
  .reservation { min-height: 0; background-position: center; }
  .reservation__inner { padding-top: 35px; padding-bottom: 35px; }
  .section-title--reservation { gap: 10px; margin-bottom: 0; font-size: 22px; line-height: 1.15; }
  .reservation__inner > p { margin: 2px 0 20px; font-size: 11px; line-height: 1.35; }
  .reservation__links { grid-template-columns: 1fr; gap: 16px; padding: 0 6px; }
  .reservation__button { min-height: 86px; gap: 12px; padding: 10px 15px; border-radius: 10px; }
  .reservation__mark { width: 52px; flex-basis: 52px; }
  .reservation__label { font-size: clamp(14px, 4vw, 18px); }
  .reservation__arrow { width: 13px; height: 13px; flex-basis: 13px; border-width: 3px; }
  .reservation__button:hover { transform: scale(1.1); }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }