:root {
  --blue: #0077c8;
  --blue-dark: #005a9c;
  --blue-light: #e7f7ff;
  --sky: #5ec8f2;
  --navy: #073b63;
  --yellow: #ffd84d;
  --white: #ffffff;
  --text: #1d2b34;
  --gray: #f4f8fb;
  --line: #06c755;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Yu Gothic", "游ゴシック", sans-serif;
  color: var(--text);
  line-height: 1.8;
  background: #ffffff;
}

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

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

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title span {
  display: inline-block;
  color: var(--blue);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .12em;
  margin-bottom: 8px;
}

.section-title h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.4;
  color: var(--navy);
}

.section-title p {
  margin-top: 16px;
  font-size: 16px;
  color: #51616b;
}

/* header */
.header {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,119,200,.12);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  color: var(--blue);
  letter-spacing: .05em;
}

.nav {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 14px;
  font-weight: 700;
}

.nav a {
  transition: color .25s;
}

.nav a:hover {
  color: var(--blue);
}

.nav .nav-btn {
  background: var(--blue);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(0,119,200,.24);
}

.nav a.nav-btn:hover {
  color: #fff;
  background: var(--blue-dark);
  box-shadow: 0 10px 24px rgba(0,119,200,.32);
}

/* hero */
.hero {
  height: 100svh;
  min-height: 640px;
  padding: 72px 0 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(231,247,255,.96) 0%, rgba(255,255,255,.82) 48%, rgba(0,119,200,.22) 100%),
    url("../img/mainvisual.jpg") center/cover no-repeat;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(94,200,242,.25);
  animation: float 8s ease-in-out infinite;
}

.hero::before {
  width: 340px;
  height: 340px;
  right: -80px;
  top: 120px;
}

.hero::after {
  width: 220px;
  height: 220px;
  left: -60px;
  bottom: 90px;
  animation-delay: 1.5s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-24px);
  }
}

.hero-message {
  position: relative;
  z-index: 2;
  margin-bottom: 16px;
  text-align: center;
  color: var(--blue);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.35;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: center;
  gap: 32px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  background: #fff;
  color: var(--blue);
  font-weight: 800;
  padding: 6px 16px;
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(0,119,200,.14);
  margin-bottom: 14px;
}

.hero h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(34px, 4.4vw, 42px);
  line-height: 1.25;
  letter-spacing: .03em;
}

.hero h1 strong {
  color: var(--blue);
  background: linear-gradient(transparent 60%, rgba(255,216,77,.75) 60%);
}

.hero-subtitle {
  margin: 12px 0 0;
  color: var(--navy);
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.38;
  font-weight: 800;
}

.sp-break {
  display: none;
}

.pc-break {
  display: block;
}

.hero-lead {
  margin: 12px 0;
  font-size: clamp(15px, 1.8vw, 18px);
  font-weight: 600;
  color: #334955;
}

.hero-note {
  margin: 0;
  padding-left: 1em;
  font-size: 14px;
  line-height: 1.6;
  text-indent: -1em;
  color: #334955;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.final-actions {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 34px;
}

.final-actions > .btn {
  width: auto;
  max-width: none;
}

.hero-actions a:not(.btn) {
  display: inline-block;
  max-width: min(350px, 100%);
  transition: transform .25s;
}

.hero-actions a:not(.btn):hover {
  transform: translateY(-3px);
}

.hero-actions a:not(.btn) img {
  width: 100%;
}

.hero-actions > .btn {
  width: 100%;
  padding: 0.75em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 220px;
  padding: 16px 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .25s, box-shadow .25s, background .25s;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  /*box-shadow: 0 14px 28px rgba(0,119,200,.28);*/
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-line {
  background: var(--line);
  color: #fff;
  /*box-shadow: 0 14px 28px rgba(6,199,85,.24);*/
}

.hero-card-slider {
  display: grid;
  gap: 14px;
}

.hero-card-track {
  display: grid;
}

.hero-card {
  grid-area: 1 / 1;
  background: rgba(255,255,255,.86);
  border-radius: 28px;
  padding: 22px;
  box-shadow: 0 0 28px rgba(0,75,130,.15);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px) scale(.98);
  transition: opacity .7s ease, transform .7s ease;
}

.hero-card.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.hero-card img {
  width: 100%;
  max-height: min(30vh, 250px);
  object-fit: contain;
  border-radius: 20px;
  margin-bottom: 14px;
}

.hero-card h3 {
  color: var(--navy);
  margin: 0 0 10px;
  font-size: clamp(18px, 2vw, 21px);
  text-align:center;
}

.hero-card p {
  margin: 0;
  color: #51616b;
  font-size: 15px;
}

.hero-card-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.hero-card-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(0,119,200,.24);
  cursor: pointer;
  transition: background .25s, transform .25s;
}

.hero-card-dot.is-active {
  background: var(--blue);
  transform: scale(1.2);
}

/* floating CTA */
.floating-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.floating-cta a {
  background: var(--blue);
  color: #fff;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 13px;
  box-shadow: 0 10px 24px rgba(0,119,200,.3);
  text-align: center;
}

.floating-cta .line {
  background: var(--line);
}

/* problem */
.problem {
  background: var(--gray);
  overflow: hidden;
}

.problem-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.image-frame {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,55,95,.16);
}

/*
.image-frame::after {
  content: "屋外の暑さ対策";
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(0,119,200,.9);
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 14px;
}
*/

.problem-list {
  display: grid;
  gap: 18px;
}

.problem-item {
  background: #fff;
  border-radius: 20px;
  padding: 22px;
  border-left: 6px solid var(--sky);
  box-shadow: 0 8px 24px rgba(0,55,95,.08);
  opacity: 0;
  transform: translateY(24px);
  transition: .7s;
}

.problem-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.problem-item h3 {
  margin: 0 0 6px;
  color: var(--navy);
  font-size: 20px;
}

.problem-item p {
  margin: 0;
  color: #51616b;
}

/* solution */
.solution {
  background: linear-gradient(180deg, #fff 0%, var(--blue-light) 100%);
}

.solution .section-title {
  margin-bottom: 68px;
}

.solution-subtitle {
  margin: 0 0 28px;
  color: var(--blue);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.45;
  text-align: center;
}

.solution-slider {
  position: relative;
  width: min(960px, 100%);
  margin: 0 auto;
  padding: clamp(18px, 3vw, 30px);
  border-radius: 28px;
  background: rgba(255,255,255,.94);
  box-shadow:0 0 8px rgb(0 75 130 / 5%);
}

.solution-slide-track {
  display: grid;
  align-items: center;
}

.solution-slide {
  grid-area: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateX(18px);
  transition: opacity .45s ease, transform .45s ease;
}

.solution-slide.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.solution-slide-image {
  width: auto;
  max-width: 100%;
  max-height: min(72vh, 620px);
  height: auto;
  object-fit: contain;
  border-radius: 14px;
  cursor: zoom-in;
}

.solution-slider-dots {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 24px;
}

.solution-slider-dot {
  width: 13px;
  height: 13px;
  padding: 0;
  border: 2px solid rgba(0,119,200,.25);
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  transition: background .25s, border-color .25s, box-shadow .25s, transform .25s;
}

.solution-slider-dot.is-active {
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 0 0 5px rgba(0,119,200,.13);
  transform: scale(1.16);
}

.solution-box {
  background: #fff;
  border-radius: 32px;
  padding: 42px;
  box-shadow: 0 20px 60px rgba(0,75,130,.12);
  border: 1px solid rgba(0,119,200,.12);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: center;
}

.solution-grid h3 {
  font-size: 28px;
  color: var(--navy);
  margin-top: 0;
}

.solution-kome{
  text-align:center;
  margin-top:68px;
}

.solution-line-cta {
  padding: 42px 0;
  background:var(--blue-light);
  text-align: center;
}

.solution-line-cta a {
  display: inline-block;
  max-width: min(800px, 100%);
  transition: transform .25s;
}

.solution-line-cta a:hover {
  transform: translateY(-3px);
}

.solution-line-cta img {
  width: 100%;
}

.round-img {
  border-radius: 24px;
}

.check-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: 700;
}

.check::before {
  content: "✓";
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  border-radius: 50%;
  background: var(--sky);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  line-height: 1;
}

/* feature cards */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 46px;
}

.feature-card {
  background: #fff;
  border-radius: 24px;
  padding: 28px;
  text-align: center;
  box-shadow: 0 14px 38px rgba(0,75,130,.1);
  border: 1px solid rgba(0,119,200,.1);
  transition: .3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(0,75,130,.16);
}

.feature-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky), var(--blue));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 30px;
}

.feature-card h3 {
  color: var(--navy);
  margin: 0 0 10px;
}

.feature-card p {
  margin: 0;
  color: #51616b;
  font-size: 15px;
}

/* image modal */
.image-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}

.image-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.image-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7,59,99,.78);
  backdrop-filter: blur(4px);
}

.image-modal-content {
  position: relative;
  z-index: 1;
  width: min(1000px, 100%);
}

.image-modal-close {
  position: absolute;
  top: -16px;
  right: -16px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  color: var(--navy);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 10px 28px rgba(0,0,0,.22);
}

.image-modal-content img {
  width: 100%;
  max-height: 86vh;
  object-fit: contain;
  border-radius: 18px;
  box-shadow: 0 24px 70px rgba(0,0,0,.28);
  cursor: zoom-out;
}

/* scenes */
.scene {
  background: #fff;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scene-card {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  min-height: 360px;
  box-shadow: 0 16px 42px rgba(0,55,95,.14);
  cursor: pointer;
}

.scene-card img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform .5s;
}

.scene-card:hover img {
  transform: scale(1.08);
}

.scene-text {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  padding: 24px;
  color: #fff;
  background: linear-gradient(transparent, rgba(0,40,70,.86));
}

.scene-text h3 {
  margin: 0 0 6px;
  font-size: 22px;
}

.scene-text p {
  margin: 0;
  font-size: 14px;
}

/* before after */
.before-after {
  background: var(--navy);
  color: #fff;
}

.before-after .section-title h2,
.before-after .section-title p {
  color: #fff;
}

.ba-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.ba-card {
  border-radius: 28px;
  padding: 34px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
}

.ba-card.after {
  background: linear-gradient(135deg, var(--sky), var(--blue));
}

.ba-card h3 {
  font-size: 28px;
  margin: 0 0 18px;
}

.ba-card ul {
  margin: 0;
  padding-left: 1.2em;
}

/* returns */
.returns {
  background: var(--blue-light);
}

.return-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.return-card {
  background: #fff;
  border-radius: 28px;
  padding: 32px;
  box-shadow: 0 16px 42px rgba(0,75,130,.12);
  position: relative;
  overflow: hidden;
  transition: .3s;
}

.return-card:hover {
  transform: translateY(-8px);
}

.return-card.recommend::before {
  content: "おすすめ";
  position: absolute;
  top: 10px;
  right: -36px;
  background: var(--yellow);
  color: var(--navy);
  font-weight: 900;
  padding: 6px 46px;
  transform: rotate(35deg);
  font-size: 13px;
}

.return-card h3 {
  color: var(--blue);
  font-size: 24px;
  margin: 0 0 10px;
}

.price {
  font-size: 34px;
  color: var(--navy);
  font-weight: 900;
  margin: 10px 0 18px;
}

.return-card ul {
  padding-left: 1.2em;
  margin: 0 0 24px;
}

.return-card .btn {
  width: 100%;
  min-width: 0;
  padding-inline: 16px;
}

/* schedule */
.schedule {
  background: #fff;
}

.timeline {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--blue-light);
  border-radius: 999px;
}

.timeline-item {
  position: relative;
  padding-left: 70px;
  margin-bottom: 32px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 4px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--blue);
  border: 6px solid var(--blue-light);
}

.timeline-item h3 {
  margin: 0 0 6px;
  color: var(--navy);
}

.timeline-item p {
  margin: 0;
  color: #51616b;
}

/* faq */
.faq {
  background: var(--gray);
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,55,95,.08);
}

.faq-question {
  width: 100%;
  border: none;
  background: #fff;
  padding: 22px 56px 22px 24px;
  text-align: left;
  font-size: 17px;
  font-weight: 800;
  color: var(--navy);
  cursor: pointer;
  position: relative;
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 26px;
  color: var(--blue);
}

.faq-item.active .faq-question::after {
  content: "−";
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 24px 24px;
  color: #51616b;
}

/* line */
.line-section {
  background:
    linear-gradient(135deg, rgba(0,119,200,.9), rgba(94,200,242,.88)),
    url("../img/product02.jpg") center/cover no-repeat;
  color: #fff;
  text-align: center;
}

.line-section h2 {
  font-size: clamp(28px, 4vw, 44px);
  margin: 0 0 18px;
}

.line-section p {
  margin: 0 auto 28px;
  max-width: 720px;
}

.line-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  width: min(800px, 100%);
}

.line-box img {
  width: 100%;
  transition:.3s;
}

.line-box img:hover{
  opacity:.5;
}

/* final cta */
.final-cta {
  text-align: center;
  background: linear-gradient(180deg, #fff 0%, var(--blue-light) 100%);
}

.final-cta h2 {
  color: var(--navy);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.4;
  margin: 0 0 20px;
}

.final-cta p {
  max-width: 760px;
  margin: 0 auto 34px;
  color: #51616b;
  font-weight: 600;
}

footer {
  background: var(--navy);
  color: #fff;
  padding: 36px 0;
  text-align: center;
  font-size: 13px;
}

/* animation */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s, transform .8s;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* responsive */
@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .hero-inner,
  .problem-grid,
  .solution-grid,
  .ba-grid {
    grid-template-columns: 1fr;
  }

  .features,
  .scene-grid,
  .return-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 70px 0;
  }

  .hero {
    height: auto;
    min-height: 100svh;
    padding: 84px 0 64px;
  }

  .hero-message {
    margin-bottom: 16px;
  }

  .hero-inner {
    gap: 32px;
    padding: 28px 0 0;
  }

  .hero-actions a:not(.btn){
    width:100%;
    max-width: none;
  }

  .sp-break {
    display: block;
  }

  .pc-break {
    display: none;
  }

  .line-box {
    flex-direction: column;
  }

  .floating-cta {
    left: 12px;
    right: 12px;
    bottom: 12px;
    flex-direction: row;
  }

  .floating-cta a {
    flex: 1;
    padding: 12px 8px;
  }

  .image-modal {
    padding: 16px;
  }

  .image-modal-close {
    top: 8px;
    right: 8px;
    width: 40px;
    height: 40px;
    font-size: 26px;
  }

  .image-modal-content img {
    max-height: 82vh;
    border-radius: 14px;
  }

  footer {
    padding-bottom: 104px;
  }
}