:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
  --color-bg: #f5f7fb;
  --color-surface: #ffffff;
  --color-surface-soft: #f8fbff;
  --color-text: #172033;
  --color-muted: #5d6b82;
  --color-primary: #0b5cff;
  --color-primary-dark: #073b9a;
  --color-cyan: #13b8d4;
  --color-green: #28a66a;
  --color-amber: #f2a23a;
  --color-ink: #071221;
  --color-border: #dfe7f3;
  --radius-lg: 8px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --shadow-soft: 0 18px 46px rgba(16, 38, 84, 0.12);
  --shadow-subtle: 0 10px 26px rgba(16, 38, 84, 0.08);
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #eef4fb 0, var(--color-bg) 420px),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.75;
  letter-spacing: 0;
}

body,
button,
input,
textarea,
select {
  font: inherit;
}

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

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

a:hover {
  color: var(--color-primary);
}

:focus-visible {
  outline: 3px solid rgba(19, 184, 212, 0.55);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(223, 231, 243, 0.92);
  backdrop-filter: blur(14px);
}

.nav-shell,
.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.nav-shell {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--color-ink);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-cyan));
  box-shadow: 0 10px 22px rgba(11, 92, 255, 0.24);
  position: relative;
  flex: 0 0 auto;
  overflow: hidden;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 2px solid rgba(255, 255, 255, 0.88);
  border-left-color: transparent;
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 9px 13px;
  border-left: 2px solid rgba(255, 255, 255, 0.72);
  border-right: 2px solid rgba(255, 255, 255, 0.52);
  transform: skewX(-12deg);
}

.brand-text {
  display: grid;
  line-height: 1.18;
}

.brand-text small {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 500;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  content: "";
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-menu a {
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.96rem;
  font-weight: 600;
  padding: 8px 0;
}

.nav-menu a[aria-current="page"] {
  color: var(--color-primary);
}

.nav-menu > a[aria-current="page"],
.nav-dropdown > a[aria-current="page"] {
  background: #eef6ff;
  padding: 8px 10px;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-dropdown > a::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 18px);
  left: 50%;
  display: grid;
  min-width: 190px;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.dropdown-panel a {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
}

.dropdown-panel a:hover {
  background: #eef6ff;
  color: var(--color-primary-dark);
}

.nav-dropdown:hover .dropdown-panel,
.nav-dropdown:focus-within .dropdown-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.hero {
  background:
    linear-gradient(135deg, rgba(7, 18, 33, 0.98), rgba(8, 40, 92, 0.96) 58%, rgba(5, 78, 110, 0.93)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 96px);
  color: #ffffff;
}

.hero:not(.hero-slider) .container {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 52px;
  align-items: center;
  min-height: 620px;
  padding: 74px 0 72px;
}

.hero-slider {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  background:
    radial-gradient(circle at 75% 20%, rgba(19, 184, 212, 0.34), transparent 28%),
    linear-gradient(135deg, #061220 0%, #092553 48%, #053d59 100%);
}

.hero-static {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(3, 12, 28, 0.28), rgba(4, 31, 76, 0.08)),
    url("/assets/images/hero-background-digital-grid.png?v=2") center / cover no-repeat;
}

.hero-static::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(3, 10, 24, 0.74) 0%, rgba(3, 10, 24, 0.42) 48%, rgba(3, 10, 24, 0.12) 100%);
  pointer-events: none;
}

.hero-static-visual {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 720px;
  margin: 0;
  justify-self: end;
  opacity: 1;
}

.hero-static-visual img {
  width: 100%;
  filter: drop-shadow(0 30px 78px rgba(0, 0, 0, 0.42));
}

.hero-schematic {
  display: grid;
  place-items: center;
  max-width: 760px;
  min-height: 420px;
  padding: 0;
}

.hero-schematic-svg {
  display: block;
  width: min(100%, 760px);
  height: auto;
  overflow: visible;
  filter: drop-shadow(0 32px 78px rgba(0, 0, 0, 0.46));
}

.schematic-panel {
  filter: drop-shadow(0 16px 34px rgba(0, 190, 255, 0.18));
}

.schematic-title,
.schematic-list text,
.schematic-core-text,
.schematic-small {
  font-family: var(--font-sans);
  fill: rgba(255, 255, 255, 0.94);
  letter-spacing: 0;
}

.schematic-title {
  font-size: 20px;
  font-weight: 800;
}

.schematic-list text {
  font-size: 16px;
  font-weight: 700;
}

.schematic-list circle {
  fill: #17e5ff;
  filter: drop-shadow(0 0 6px rgba(23, 229, 255, 0.9));
}

.schematic-core-text {
  font-size: 22px;
  font-weight: 900;
}

.schematic-small {
  font-size: 13px;
  font-weight: 700;
  fill: rgba(226, 244, 255, 0.86);
}

.schematic-cube {
  transform-origin: 450px 292px;
  animation: schematic-float 5.4s ease-in-out infinite;
}

.schematic-dots circle {
  animation: schematic-pulse 2.6s ease-in-out infinite;
}

.schematic-dots circle:nth-child(2) {
  animation-delay: 0.3s;
}

.schematic-dots circle:nth-child(3) {
  animation-delay: 0.6s;
}

.schematic-dots circle:nth-child(4) {
  animation-delay: 0.9s;
}

.schematic-dots circle:nth-child(5) {
  animation-delay: 1.2s;
}

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

  50% {
    transform: translateY(-9px);
  }
}

@keyframes schematic-pulse {
  0%,
  100% {
    opacity: 0.72;
  }

  50% {
    opacity: 1;
  }
}

.hero-slider::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  background:
    linear-gradient(90deg, rgba(6, 18, 32, 0.88) 0%, rgba(6, 18, 32, 0.58) 44%, rgba(6, 18, 32, 0.22) 100%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.07) 0 1px, transparent 1px 88px);
  pointer-events: none;
}

.hero-slides,
.hero-slide {
  position: absolute;
  inset: 0;
  margin: 0;
}

.hero-slide {
  opacity: 0;
  transition: opacity 0.8s ease;
}

.hero-slide.is-active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
}

.hero-overlay {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  gap: clamp(32px, 5vw, 72px);
  min-height: 680px;
  align-items: center;
  padding: 82px 0 96px;
}

.hero-copy {
  max-width: 720px;
  align-self: center;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
}

.hero-copy h1 {
  max-width: 720px;
}

.hero-copy p {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
}

.hero-copy .eyebrow {
  color: #9eeaf4;
}

.hero-copy h1 {
  text-shadow: 0 16px 44px rgba(0, 0, 0, 0.28);
}

.hero-legend {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  width: min(100%, 560px);
  min-height: 118px;
  margin-top: 34px;
  padding: 18px 0;
  background:
    linear-gradient(90deg, rgba(5, 22, 47, 0.34), rgba(7, 42, 83, 0.28));
  color: rgba(145, 183, 219, 0.76);
}

.hero-legend-item {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  min-width: 0;
  padding: 0 12px;
  text-align: center;
  font-weight: 800;
  font-size: clamp(0.78rem, 1vw, 0.96rem);
  line-height: 1.2;
}

.hero-legend-item + .hero-legend-item {
  border-left: 1px solid rgba(117, 158, 205, 0.48);
}

.hero-legend-item svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: rgba(89, 149, 198, 0.8);
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.hero-legend-item.culture-tourism-copy {
  gap: 0;
  padding: 0 10px;
}

.hero-legend-item.culture-tourism-copy .culture-copy-image {
  width: 68px;
  height: 82px;
  max-width: none;
  opacity: 1;
}


.hero-legend.hero-legend-png {
  display: block;
  grid-template-columns: none;
  min-height: 0;
  padding: 0;
  background: none;
  overflow: hidden;
}

.hero-legend.hero-legend-png .hero-legend-png-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
}

.hero-slider .hero-actions {
  margin-top: 0;
}

.hero-dots {
  position: absolute;
  left: 50%;
  bottom: 32px;
  z-index: 3;
  display: flex;
  gap: 10px;
  transform: translateX(-50%);
}

.hero-dots button {
  width: 38px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  cursor: pointer;
}

.hero-dots button.is-active,
.hero-dots button:hover {
  background: #ffffff;
}

.page-hero {
  background:
    radial-gradient(circle at 78% 22%, rgba(19, 184, 212, 0.28), transparent 30%),
    linear-gradient(135deg, rgba(7, 18, 33, 0.98), rgba(7, 55, 114, 0.96)),
    linear-gradient(90deg, rgba(19, 184, 212, 0.18), transparent);
  color: #ffffff;
}

.page-hero .container {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 0.58fr);
  gap: 44px;
  align-items: center;
  min-height: 410px;
  padding: 58px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #90e7f6;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: currentColor;
}

h1,
h2,
h3 {
  margin: 0;
  color: inherit;
  line-height: 1.22;
  letter-spacing: 0;
}

h1 {
  max-width: 920px;
  margin-top: 16px;
  font-size: clamp(2.35rem, 5.5vw, 4.9rem);
  font-weight: 800;
}

.page-hero h1 {
  font-size: clamp(2.15rem, 4.6vw, 4rem);
}

.lead {
  max-width: 780px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.05rem, 1.7vw, 1.22rem);
}

.section-lead {
  max-width: 820px;
  margin: 14px 0 0;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), #087bd3);
  color: #ffffff;
  font-weight: 700;
  line-height: 1.2;
  box-shadow: 0 12px 24px rgba(11, 92, 255, 0.2);
}

.btn:hover {
  background: #084fe0;
  color: #ffffff;
}

.btn.secondary {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.btn.secondary:hover {
  background: rgba(255, 255, 255, 0.16);
}

.btn.light {
  border-color: var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary-dark);
  box-shadow: none;
}

.hero-visual,
.page-visual {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.hero-visual img,
.page-visual img {
  width: 100%;
}

.page-visual.wide {
  aspect-ratio: 16 / 9;
}

.page-visual.wide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.section {
  padding: 78px 0;
}

.section.alt {
  background: var(--color-surface);
}

.section.tinted {
  background:
    linear-gradient(180deg, #ffffff 0%, #f0f6ff 100%);
}

.section.compact {
  padding: 58px 0;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 34px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.65rem);
  color: var(--color-ink);
}

.grid {
  display: grid;
  gap: 22px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.case-card,
.service-card {
  height: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 1px 0 rgba(16, 38, 84, 0.04);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card:hover,
.case-card:hover,
.service-card:hover {
  border-color: rgba(11, 92, 255, 0.24);
  box-shadow: var(--shadow-subtle);
  transform: translateY(-3px);
}

.card,
.service-card {
  padding: 26px;
  position: relative;
  overflow: hidden;
}

.service-card {
  display: flex;
  flex-direction: column;
}

.service-card::after {
  content: "";
  position: absolute;
  left: 26px;
  right: 26px;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-cyan));
  opacity: 0;
  transition: opacity 0.18s ease;
}

.service-card:hover::after {
  opacity: 1;
}

.card h3,
.service-card h3,
.case-card h3 {
  margin-bottom: 12px;
  color: var(--color-ink);
  font-size: 1.22rem;
}

.card p,
.service-card p,
.case-card p,
.content-block p,
.rich-text p {
  margin: 0;
  color: var(--color-muted);
}

.service-card img {
  width: 72px;
  height: 72px;
  margin-bottom: 18px;
  padding: 10px;
  border-radius: var(--radius-md);
  background: #f0f7ff;
}

.service-card a {
  display: inline-flex;
  margin-top: auto;
  padding-top: 18px;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.about-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.about-summary {
  max-width: 980px;
  color: var(--color-text);
  font-size: clamp(1.08rem, 1.6vw, 1.24rem);
  line-height: 1.9;
}

.case-card {
  overflow: hidden;
}

.case-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background:
    linear-gradient(135deg, #e9f2ff, #f8fbff);
}
.case-image {
  position: relative;
  margin: 0;
  overflow: hidden;
}

.case-image img {
  display: block;
}

.case-image figcaption {
  position: absolute;
  right: 18px;
  bottom: 16px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(7, 18, 33, 0.72);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.84rem;
  line-height: 1.2;
}

.case-body {
  padding: 22px;
}

.photo-strip,
.gallery-grid {
  display: grid;
  gap: 18px;
}

.photo-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.gallery-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.photo-strip figure,
.gallery-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 1px 0 rgba(16, 38, 84, 0.04);
}

.photo-strip img,
.gallery-card img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  background: #e9f2ff;
}

.photo-strip figcaption,
.gallery-card figcaption {
  padding: 12px 14px;
  color: var(--color-ink);
  font-weight: 800;
}

.placeholder-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border: 1px solid #f4d49f;
  border-radius: var(--radius-sm);
  background: #fff8ec;
  color: #7a4d0b;
  font-weight: 700;
}

.placeholder-note::before {
  content: "";
  font-weight: 800;
}

.source-note {
  margin: 14px 0 0;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.fact-item {
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, #ffffff, #f8fbff);
  box-shadow: 0 1px 0 rgba(16, 38, 84, 0.05);
}

.fact-item strong {
  display: block;
  color: var(--color-primary-dark);
  font-size: 1.35rem;
  line-height: 1.2;
}

.fact-item span {
  display: block;
  margin-top: 8px;
  color: var(--color-muted);
}

.content-kicker {
  margin: 0 0 8px;
  color: var(--color-primary-dark);
  font-weight: 800;
}

.two-column-text {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 10px;
  border-radius: 999px;
  background: #edf6ff;
  color: var(--color-primary-dark);
  font-size: 0.86rem;
  font-weight: 700;
}

.tag.green {
  background: #eaf8f0;
  color: #197549;
}

.tag.amber {
  background: #fff3df;
  color: #8a560c;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter-button {
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 700;
}

.filter-button.is-active,
.filter-button:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

.filter-empty {
  margin: 0 0 24px;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #f8fbff;
  color: var(--color-muted);
}

.content-block {
  display: grid;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 1px 0 rgba(16, 38, 84, 0.04);
}

.content-block h2,
.rich-text h2,
.content-block h3 {
  color: var(--color-ink);
  font-size: clamp(1.42rem, 2.4vw, 2rem);
}

.rich-text {
  display: grid;
  gap: 26px;
}

.feature-list,
.plain-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li,
.plain-list li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  padding: 14px 16px;
  color: var(--color-text);
}

.feature-list li::before,
.plain-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--color-cyan);
}

.scenario-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.scenario-list li {
  padding: 18px 20px;
  border-left: 4px solid var(--color-primary);
  background: #f7fbff;
  color: var(--color-muted);
}

.scenario-list li:nth-child(2n) {
  border-left-color: var(--color-cyan);
}

.scenario-list strong {
  color: var(--color-ink);
}

.quadrant {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-border);
}

.quadrant-item {
  min-height: 170px;
  padding: 26px;
  background: var(--color-surface);
}

.quadrant-item:nth-child(1) {
  border-top: 5px solid var(--color-primary);
}

.quadrant-item:nth-child(2) {
  border-top: 5px solid var(--color-green);
}

.quadrant-item:nth-child(3) {
  border-top: 5px solid var(--color-cyan);
}

.quadrant-item:nth-child(4) {
  border-top: 5px solid var(--color-amber);
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(280px, 0.32fr);
  gap: 26px;
  align-items: start;
}

.side-panel {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, #ffffff, #f8fbff);
  box-shadow: var(--shadow-subtle);
}

.side-panel h2 {
  color: var(--color-ink);
  font-size: 1.24rem;
}

.contact-section {
  padding: 44px 0;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.contact-card {
  width: 100%;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-subtle);
}

.company-brief-card {
  position: relative;
  display: grid;
  align-content: start;
  gap: 20px;
  min-height: 100%;
  padding: 34px;
  overflow: hidden;
  border: 1px solid rgba(19, 184, 212, 0.34);
  border-radius: var(--radius-md);
  color: #ffffff;
  background:
    radial-gradient(circle at 86% 18%, rgba(19, 184, 212, 0.34), transparent 28%),
    linear-gradient(135deg, #061220 0%, #092c67 54%, #06465f 100%);
  box-shadow: 0 24px 70px rgba(5, 21, 48, 0.22);
}

.company-brief-card::before,
.company-brief-card::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.company-brief-card::before {
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.45;
}

.company-brief-card::after {
  right: -72px;
  bottom: -88px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(144, 231, 246, 0.3);
  border-radius: 50%;
  background: rgba(19, 184, 212, 0.08);
}

.company-brief-card > * {
  position: relative;
  z-index: 1;
}

.company-brief-card h2 {
  color: #ffffff;
}

.company-brief-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.62;
}

.brief-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.brief-facts div {
  padding: 12px 14px;
  border: 1px solid rgba(144, 231, 246, 0.22);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
}

.brief-facts strong,
.brief-facts span {
  display: block;
}

.brief-facts strong {
  color: #9eeaf4;
  font-size: 1.08rem;
}

.brief-facts span {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.contact-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: flex;
  min-height: 54px;
  align-items: center;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #f8fbff;
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.45;
}

.notice-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.notice-list li {
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #f8fbff;
  color: var(--color-text);
}

.site-footer {
  background:
    linear-gradient(135deg, #071221, #09234a 58%, #063b4e);
  color: rgba(255, 255, 255, 0.78);
}
.footer-record {
  display: flex;
  flex-wrap: nowrap;
  column-gap: 28px;
  row-gap: 6px;
  margin: 0;
  line-height: 1.7;
  text-align: left;
  white-space: nowrap;
}

.footer-record span {
  display: inline;
}

.copyright {
  display: flex;
  justify-content: flex-start;
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.92rem;
}

.footer-record {
  width: auto;
  flex-wrap: nowrap;
}

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 15;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #ffffff;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-legend {
    width: 100%;
  }

.grid.three,
  .grid.four,
  .photo-strip,
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero .container,
  .page-hero .container,
  .about-band,
  .detail-layout,
  .footer-record {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
    white-space: normal;
  }

  .hero:not(.hero-slider) .container {
    min-height: auto;
  }

  .contact-section {
  padding: 44px 0;
}

.contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-static .hero-overlay {
    grid-template-columns: 1fr;
  }

  .hero-static-visual {
    max-width: 520px;
    justify-self: start;
  }

  .side-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .hero-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    min-height: auto;
  }

  .hero-legend-item {
    padding: 14px 10px;
  }

  .hero-legend-item:nth-child(4) {
    border-left: 0;
  }

.nav-shell {
    min-height: 66px;
  }

  .menu-toggle {
    display: inline-block;
  }

  .nav-menu {
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    display: none;
    padding: 18px 16px 22px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-subtle);
  }

  .nav-menu.is-open {
    display: grid;
    gap: 12px;
  }

  .nav-dropdown > a::after {
    display: none;
  }

  .dropdown-panel {
    position: static;
    display: grid;
    min-width: 0;
    margin-top: 8px;
    padding: 6px;
    border: 1px solid var(--color-border);
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .hero:not(.hero-slider) .container,
  .page-hero .container {
    padding: 48px 0;
  }

  .hero-slider,
  .hero-overlay {
    min-height: 650px;
  }

  .hero-overlay {
    padding: 56px 0 86px;
  }

  .hero-copy {
    padding-bottom: 0;
  }

  .hero-copy h1 {
    font-size: clamp(2rem, 11vw, 3.1rem);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-dots {
    bottom: 24px;
  }
.section {
    padding: 56px 0;
  }

  .section-header {
    display: grid;
  }

  .grid.two,
  .grid.three,
  .grid.four,
  .photo-strip,
  .gallery-grid,
  .fact-grid,
  .feature-list,
  .plain-list,
  .quadrant,
  .two-column-text {
    grid-template-columns: 1fr;
  }

  .brand-text small {
    display: none;
  }

  .contact-card,
  .company-brief-card {
    padding: 24px;
  }

  .contact-list,
  .brief-facts {
    grid-template-columns: 1fr;
  }
}