:root {
  --bg: #f7f8f5;
  --bg-soft: #eef1ee;
  --card: rgba(255, 255, 255, 0.88);
  --card-solid: #ffffff;
  --line: rgba(30, 41, 51, 0.08);
  --ink: #1e2933;
  --muted: #61706d;
  --teal: #1bae9a;
  --teal-deep: #127f72;
  --coral: #ff6b5e;
  --sand: #f2eee5;
  --shadow: 0 24px 80px rgba(38, 53, 58, 0.12);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    "Hiragino Sans",
    "Noto Sans JP",
    "Yu Gothic",
    sans-serif;
  background:
    radial-gradient(circle at top left, rgba(27, 174, 154, 0.14), transparent 28%),
    radial-gradient(circle at 90% 12%, rgba(255, 107, 94, 0.14), transparent 24%),
    linear-gradient(180deg, #f9fbf9 0%, #f2f4f2 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.62)),
    url("./assets/explore-screen.png");
  background-size: cover;
  background-position: center top;
  filter: grayscale(1) contrast(0.7) brightness(1.24);
  opacity: 0.18;
  content: "";
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(30, 41, 51, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 41, 51, 0.045) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.48), transparent 92%);
  content: "";
}

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

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

.page-shell {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  padding-bottom: 64px;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 18px;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 48px rgba(30, 41, 51, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--teal), #79d4c6);
  box-shadow:
    0 0 0 7px rgba(27, 174, 154, 0.12),
    0 0 0 16px rgba(27, 174, 154, 0.06);
}

.site-nav {
  display: inline-flex;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.header-cta,
.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--ink), #34404b);
  box-shadow: 0 12px 30px rgba(30, 41, 51, 0.2);
}

.button-secondary {
  border: 1px solid rgba(30, 41, 51, 0.1);
  background: rgba(255, 255, 255, 0.82);
}

.button-large {
  min-height: 58px;
  padding: 0 30px;
  font-size: 1.05rem;
}

.header-cta:hover,
.button:hover,
.header-cta:focus-visible,
.button:focus-visible {
  transform: translateY(-1px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  align-items: center;
  gap: 48px;
  padding: 78px 0 50px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--teal-deep);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.story-copy h2,
.value-band h2,
.features-section h2,
.gallery-section h2,
.comparison-section h2,
.brand-card h2,
.install-copy h2,
.insight-card h2 {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.hero-lead,
.story-copy p,
.value-band p,
.insight-card p,
.install-copy p {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 32px;
}

.hero-points article,
.value-stat-grid article {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(14px);
}

.hero-points strong,
.value-stat-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
}

.hero-points span,
.value-stat-grid span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.hero-visual {
  position: relative;
  min-height: 780px;
}

.hero-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(16px);
}

.hero-glow-a {
  top: 70px;
  right: 22px;
  width: 250px;
  height: 250px;
  background: rgba(27, 174, 154, 0.18);
}

.hero-glow-b {
  bottom: 120px;
  left: 20px;
  width: 220px;
  height: 220px;
  background: rgba(255, 107, 94, 0.15);
}

.phone-stack {
  position: relative;
  height: 100%;
}

.phone-card {
  position: absolute;
  overflow: hidden;
  border-radius: 38px;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
}

.phone-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-card-record {
  top: 28px;
  left: 0;
  width: 248px;
  transform: rotate(-6deg);
}

.phone-card-logs {
  top: 0;
  right: 14px;
  width: 280px;
  transform: rotate(4deg);
}

.phone-card-explore {
  bottom: 0;
  right: 60px;
  width: 264px;
  transform: rotate(-2deg);
}

.insight-grid,
.story-section,
.value-band,
.features-section,
.gallery-section,
.comparison-section,
.brand-section,
.install-section {
  margin-top: 34px;
  padding: 36px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 70px rgba(31, 44, 49, 0.08);
}

.insight-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
}

.insight-card {
  padding: 28px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.8);
}

.insight-card h2 {
  font-size: clamp(2rem, 3.8vw, 3.4rem);
}

.bullet-list,
.catch-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.bullet-list li,
.catch-list li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
}

.bullet-list li::before,
.catch-list li::before {
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--teal);
  content: "";
}

.story-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 24px;
  align-items: start;
}

.story-copy h2,
.value-band h2,
.features-section h2,
.gallery-section h2,
.comparison-section h2,
.brand-card h2,
.install-copy h2 {
  font-size: clamp(2.2rem, 4vw, 3.8rem);
}

.timeline-card {
  position: relative;
  padding: 28px 28px 24px 72px;
  border-radius: 28px;
  background: linear-gradient(180deg, #ffffff, #f7faf8);
}

.timeline-line {
  position: absolute;
  left: 33px;
  top: 38px;
  bottom: 32px;
  width: 2px;
  background: linear-gradient(180deg, rgba(27, 174, 154, 0.4), rgba(255, 107, 94, 0.35));
}

.timeline-stop {
  position: relative;
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  margin-bottom: 20px;
}

.timeline-stop:last-child {
  margin-bottom: 0;
}

.timeline-stop::before {
  position: absolute;
  left: -42px;
  top: 14px;
  width: 14px;
  height: 14px;
  border: 4px solid #fff;
  border-radius: 999px;
  background: var(--teal);
  box-shadow: 0 0 0 10px rgba(27, 174, 154, 0.1);
  content: "";
}

.timeline-stop h3 {
  margin: 0 0 8px;
  font-size: 1.14rem;
}

.timeline-stop p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.time-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-width: 78px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  color: #fff;
  font-weight: 900;
  background: var(--ink);
}

.time-chip.stay {
  background: var(--teal);
}

.time-chip.route {
  background: var(--coral);
}

.value-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.92)),
    linear-gradient(135deg, rgba(27, 174, 154, 0.08), rgba(255, 107, 94, 0.08));
}

.value-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.section-heading {
  margin-bottom: 28px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 24px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.82);
}

.feature-kicker {
  display: inline-flex;
  min-height: 32px;
  padding: 0 12px;
  align-items: center;
  border-radius: 999px;
  color: var(--teal-deep);
  font-size: 0.8rem;
  font-weight: 900;
  background: rgba(27, 174, 154, 0.12);
}

.feature-card h3 {
  margin: 18px 0 10px;
  font-size: 1.28rem;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.95fr 0.95fr;
  gap: 18px;
}

.gallery-card {
  overflow: hidden;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 20px 48px rgba(30, 41, 51, 0.08);
}

.gallery-card img {
  width: 100%;
  height: 560px;
  object-fit: cover;
  object-position: top center;
}

.gallery-card-wide img {
  height: 560px;
}

.gallery-card figcaption {
  padding: 20px 22px 24px;
}

.gallery-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.gallery-card span {
  color: var(--muted);
  line-height: 1.7;
}

.comparison-table {
  display: grid;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(30, 41, 51, 0.06);
}

.comparison-row {
  display: grid;
  grid-template-columns: 1.1fr repeat(3, minmax(0, 1fr));
}

.comparison-row span {
  padding: 18px 20px;
  border-bottom: 1px solid rgba(30, 41, 51, 0.06);
  background: rgba(255, 255, 255, 0.8);
}

.comparison-row span:not(:first-child) {
  border-left: 1px solid rgba(30, 41, 51, 0.06);
}

.comparison-head span {
  color: var(--ink);
  font-weight: 900;
  background: linear-gradient(180deg, rgba(27, 174, 154, 0.14), rgba(255, 255, 255, 0.84));
}

.brand-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.brand-card {
  padding: 28px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.8);
}

.tone-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.tone-tags span {
  display: inline-flex;
  min-height: 38px;
  padding: 0 16px;
  align-items: center;
  border-radius: 999px;
  background: var(--sand);
  color: var(--ink);
  font-weight: 800;
}

.install-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(27, 174, 154, 0.12), rgba(255, 255, 255, 0.92)),
    rgba(255, 255, 255, 0.7);
}

.install-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

@media (max-width: 1120px) {
  .hero,
  .story-section,
  .value-band,
  .install-section,
  .insight-grid,
  .brand-section {
    grid-template-columns: 1fr;
  }

  .gallery-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 920px;
  }

  .phone-card-record {
    left: 8%;
  }

  .phone-card-logs {
    right: 4%;
  }

  .phone-card-explore {
    right: 18%;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--content-width));
  }

  .site-header {
    flex-wrap: wrap;
    justify-content: center;
    border-radius: 28px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }

  .hero {
    padding-top: 48px;
    gap: 28px;
  }

  .hero h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .hero-points,
  .value-stat-grid,
  .comparison-row {
    grid-template-columns: 1fr;
  }

  .comparison-row span:not(:first-child) {
    border-left: none;
  }

  .comparison-row span:first-child {
    font-weight: 900;
    background: rgba(255, 255, 255, 0.94);
  }

  .comparison-head {
    display: none;
  }

  .hero-visual {
    min-height: 840px;
  }

  .phone-card-record {
    width: 220px;
  }

  .phone-card-logs {
    width: 248px;
  }

  .phone-card-explore {
    width: 234px;
    right: 10%;
  }

  .gallery-card img,
  .gallery-card-wide img {
    height: auto;
  }
}

@media (max-width: 560px) {
  .site-header,
  .insight-grid,
  .story-section,
  .value-band,
  .features-section,
  .gallery-section,
  .comparison-section,
  .brand-section,
  .install-section {
    padding: 24px;
    border-radius: 24px;
  }

  .hero-visual {
    min-height: 720px;
  }

  .phone-card-record {
    width: 180px;
    left: 0;
  }

  .phone-card-logs {
    width: 210px;
    right: 0;
  }

  .phone-card-explore {
    width: 200px;
    right: 12%;
  }

  .timeline-card {
    padding-left: 58px;
  }

  .timeline-stop {
    grid-template-columns: 1fr;
  }

  .time-chip {
    min-width: 0;
  }
}