* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  color: #333;
  background: #f5f5f5;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: min(100% - 40px, 1100px);
  margin: 0 auto;
}

.container.narrow {
  width: min(100% - 40px, 900px);
}

.section-space {
  padding: 80px 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(18, 34, 46, 0.45);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.site-header__inner {
  width: min(100% - 40px, 1240px);
  min-height: 90px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-logo {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #000;
  position: relative;
  z-index: 1100;
}

.site-logo a {
  text-transform: uppercase;
}

.site-logo img {
  max-height: 58px;
  width: auto;
}

.site-navigation .menu {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
  margin: 0;
  padding: 0;
  color: #fff;
  font-weight: 500;
}

.site-navigation .menu a {
  transition: opacity 0.3s ease;
  text-align: center;
}

.site-navigation .menu a:hover {
  opacity: 0.7;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  position: relative;
  z-index: 1100;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  margin: 6px auto;
  background: #fff;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .site-navigation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100vh - 0px);
    padding: 24px 20px;
    background: rgba(39, 47, 58, 0.96);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
  }

  .site-navigation .menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .site-navigation .menu a {
    display: block;
    padding: 16px 0;
    color: #fff;
    font-size: 18px;
  }

  body.is-menu-open {
    overflow: hidden;
  }
}

.hero {
  position: relative;
  height: 80vh;
  overflow: hidden;
}

.hero__slider {
  position: absolute;
  width: 100%;
  height: 100%;
}

.hero__slide {
  position: absolute;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1);
  transition: opacity 1.5s ease, transform 6s ease;
}

.hero__slide.is-active {
  opacity: 1;
  transform: scale(1.1);
}

.hero__overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  height: 100%;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  z-index: 3;
  transform: translateX(-50%);
  cursor: pointer;
}

.hero__scroll-circle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.04);
}

.hero__scroll-circle::before,
.hero__scroll-circle::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  opacity: 0;
  transform: scale(1);
}

.hero__scroll-circle::before {
  animation: ripple 2.4s ease-out infinite;
}

.hero__scroll-circle::after {
  animation: ripple 2.4s ease-out 1.2s infinite;
}

.hero__scroll-arrow {
  position: relative;
  width: 12px;
  height: 12px;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  transform: rotate(45deg) translateY(-1px);
  box-sizing: border-box;
}

@keyframes ripple {
  0% {
    opacity: 0.8;
    transform: scale(1);
  }

  70% {
    opacity: 0.12;
    transform: scale(1.45);
  }

  100% {
    opacity: 0;
    transform: scale(1.55);
  }
}

@keyframes arrowFloat {

  0%,
  100% {
    transform: rotate(45deg) translate(-1px, -1px);
  }

  50% {
    transform: rotate(45deg) translate(3px, 3px);
  }
}

@media (max-width: 768px) {
  .hero__scroll {
    bottom: 24px;
  }

  .hero__scroll-circle {
    width: 50px;
    height: 50px;
  }

  .hero__scroll-arrow {
    width: 12px;
    height: 12px;
  }
}

@keyframes bounce {

  0%,
  100% {
    transform: translate(-50%, 0);
  }

  50% {
    transform: translate(-50%, 10px);
  }
}

@keyframes bounce {

  0%,
  100% {
    transform: translate(-50%, 0);
  }

  50% {
    transform: translate(-50%, 10px);
  }
}

.intro {
  text-align: center;
  background: #fff;
}

.intro__title {
  margin: 0 0 18px;
  font-size: clamp(24px, 3.2vw, 45px);
  line-height: 1.35;
  font-weight: 700;
  color: #3e3e3e;
}

.intro__text {
  margin: 0 0 30px;
  color: #555;
  font-size: 18px;
}

.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 260px;
  min-height: 58px;
  padding: 14px 28px;
  border-radius: 999px;
  background: #2f3640;
  color: #fff;
  font-weight: 700;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.button-primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.business {
  background: #f5f5f5;
}

.business-box {
  background: #fff;
  border: 1px solid #9d9d9d;
  padding: 42px 34px 36px;
}

.section-title {
  margin: 0 0 28px;
  text-align: center;
  font-size: clamp(28px, 3vw, 44px);
  color: #444;
  line-height: 1.4;
  border-bottom: 1px solid #9d9d9d;
  padding-bottom: 14px;
}

.business-body p {
  margin: 0 0 18px;
  font-size: 17px;
  color: #444;
}

.business-list {
  margin: 15px 0 40px;
  padding-left: 22px;
}

.business-list li {
  margin-bottom: 10px;
}

.page-main {
  padding-top: 150px;
  background: #fff;
  min-height: 70vh;
}

.page-title {
  margin: 0 0 24px;
  font-size: clamp(28px, 3vw, 42px);
}

.entry-body {
  font-size: 16px;
}

.site-footer {
  background: #242424;
  color: #fff;
  text-align: center;
  padding: 48px 20px;
}

.site-footer__brand {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 12px;
}

.site-footer__text {
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.8);
}

.site-footer__copy {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
  .section-space {
    padding: 56px 0;
  }

  .site-header__inner {
    min-height: 78px;
  }

  .site-logo {
    font-size: 22px;
  }

  .menu-toggle {
    display: block;
  }

  .site-navigation.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: rgba(17, 25, 33, 0.96) !important;
  }

  .site-navigation .menu {
    flex-direction: column;
    gap: 22px;
    font-size: 22px;
  }

  .hero {
    min-height: 560px;
  }

  .hero__scroll {
    width: 50px;
    height: 50px;
    font-size: 30px;
  }

  .intro__text {
    font-size: 15px;
  }

  .button-primary {
    min-width: 220px;
    min-height: 52px;
  }

  .business-box {
    padding: 28px 20px;
  }

  .section-title {
    font-size: 30px;
  }

  .business-body p,
  .business-list li {
    font-size: 15px;
  }

  .page-main {
    padding-top: 120px;
  }
}


.business-sub-title {
  font-size: 1.4rem;
  font-weight: bold;
}