:root {
  --bg: #04070d;
  --bg-2: #09111e;
  --bg-3: #0f1a2d;
  --text: #eef4ff;
  --muted: #8f9ebb;
  --line: rgba(167, 201, 255, 0.14);
  --line-strong: rgba(123, 220, 255, 0.34);
  --accent: #7ee4ff;
  --accent-2: #4db7ff;
  --glow: rgba(77, 183, 255, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 0%, rgba(77, 183, 255, 0.18), transparent 22%),
    radial-gradient(circle at 90% 18%, rgba(126, 228, 255, 0.08), transparent 18%),
    linear-gradient(180deg, #060a12 0%, #04070d 28%, #030509 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 32%, transparent 86%);
  opacity: 0.26;
}

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

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

.site-shell {
  position: relative;
  overflow-x: hidden;
}

.site-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 590px), rgba(255, 255, 255, 0.03) calc(50% - 590px), rgba(255, 255, 255, 0.03) calc(50% - 589px), transparent calc(50% - 589px), transparent calc(50% + 589px), rgba(255, 255, 255, 0.03) calc(50% + 589px), rgba(255, 255, 255, 0.03) calc(50% + 590px), transparent calc(50% + 590px));
  opacity: 0.35;
}

.ambient {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.ambient-a {
  top: 100px;
  left: -140px;
  width: 320px;
  height: 320px;
  background: rgba(77, 183, 255, 0.14);
}

.ambient-b {
  top: 920px;
  right: -140px;
  width: 360px;
  height: 360px;
  background: rgba(126, 228, 255, 0.08);
}

.masthead,
.footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.masthead {
  padding: 22px 0 46px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.18em;
  font-size: 0.96rem;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a {
  position: relative;
  padding-bottom: 6px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 120px);
  padding: 42px 0 22px;
}

.hero-aurora {
  position: absolute;
  inset: 6% 8% 8% 2%;
  background:
    radial-gradient(circle at 18% 30%, rgba(126, 228, 255, 0.14), transparent 24%),
    radial-gradient(circle at 52% 38%, rgba(77, 183, 255, 0.12), transparent 22%),
    radial-gradient(circle at 78% 24%, rgba(126, 228, 255, 0.08), transparent 18%);
  filter: blur(18px);
  pointer-events: none;
  opacity: 0.9;
  animation: auroraFloat 10s ease-in-out infinite alternate;
}

.hero-aurora::before,
.hero-aurora::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 35% 58%, rgba(126, 228, 255, 0.12), transparent 20%),
    radial-gradient(circle at 72% 46%, rgba(126, 228, 255, 0.08), transparent 18%);
  mix-blend-mode: screen;
}

.hero-aurora::before {
  animation: auroraShift 14s linear infinite;
}

.hero-aurora::after {
  animation: auroraShift 18s linear infinite reverse;
}

.kicker {
  margin: 0 0 14px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
}

.hero-copy h1,
.section-head h2,
.footer h2 {
  margin: 0;
  font-family: "Avenir Next Condensed", "Arial Narrow", "PingFang SC", sans-serif;
  line-height: 0.98;
  letter-spacing: 0.02em;
  font-weight: 700;
}

.hero-copy h1 {
  font-size: clamp(2.8rem, 6.2vw, 5.6rem);
}

.hero-copy-clean {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-copy-clean h1 {
  line-height: 0.9;
  letter-spacing: 0.01em;
}

.flicker-line {
  display: inline-block;
  position: relative;
  text-shadow: 0 0 18px rgba(126, 228, 255, 0.08);
}

.flicker-line::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.08em;
  height: 0.06em;
  background: linear-gradient(90deg, transparent, rgba(126, 228, 255, 0.38), transparent);
  opacity: 0;
  animation: linePulse 4.8s ease-in-out infinite;
}

.lead,
.section p,
.footer p {
  color: var(--muted);
  line-height: 1.85;
}

.lead {
  max-width: 60ch;
  margin: 24px 0 0;
  font-size: 0.98rem;
}

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

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.cta:hover {
  transform: translateY(-2px);
}

.cta-primary {
  color: #05101b;
  background: linear-gradient(90deg, #d6fbff 0%, #79e2ff 52%, #4db7ff 100%);
  box-shadow: 0 0 40px rgba(77, 183, 255, 0.16);
}

.cta-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
}

.hero-mark {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  justify-items: end;
  align-self: center;
}

.hero-mark-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  max-width: 360px;
}

.hero-mark-meta span {
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.hero-slab::before,
.accent-line::before,
.visual-strip::before,
.base-visual::before,
.certificate-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 20%, transparent 100%);
}

.slab-meta span,
.slab-metric span,
.strip-copy span,
.base-visual-inner span,
.signal-main span,
.role-row span,
.node-year,
.network-node,
.network-core,
.certificate-line span {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
}

.slab-meta strong,
.slab-metric strong,
.strip-copy strong,
.base-visual-inner strong,
.certificate-line strong {
  font-size: clamp(1.2rem, 2.2vw, 1.9rem);
  line-height: 1.15;
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 70px 0 18px;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.intro-band {
  --section-bg:
    linear-gradient(180deg, #08111c 0%, #050b14 100%);
  min-height: 100vh;
  padding: 88px 0 48px;
}

.collections {
  --section-bg:
    linear-gradient(180deg, #0d1830 0%, #07101f 100%);
  width: 100%;
  max-width: none;
  padding: 0;
  min-height: 100vh;
}

.store-base {
  --section-bg:
    linear-gradient(180deg, #07111f 0%, #0b1a2f 100%);
}

.timeline-section {
  --section-bg:
    linear-gradient(180deg, #0b1828 0%, #081321 100%);
  min-height: auto;
  padding-top: 30px;
}

.advantage-plane {
  --section-bg:
    linear-gradient(180deg, #10203a 0%, #08111e 100%);
}

.base-section {
  --section-bg:
    linear-gradient(180deg, #08121e 0%, #10243e 100%);
}

.signal-section {
  --section-bg:
    linear-gradient(180deg, #0a1528 0%, #07111c 100%);
}

.network-section {
  --section-bg:
    linear-gradient(180deg, #081019 0%, #111f36 100%);
}

.team-section {
  --section-bg:
    linear-gradient(180deg, #09121f 0%, #050911 100%);
}

.certificate-band {
  --section-bg:
    linear-gradient(180deg, #10213a 0%, #060b12 100%);
}

.section::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: var(--section-bg);
  pointer-events: none;
  z-index: -2;
}

.section::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: -1;
  opacity: 0.26;
  background:
    linear-gradient(90deg, transparent 0%, rgba(126, 228, 255, 0.06) 50%, transparent 100%),
    linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px);
  background-size: 100% 100%, 100% 46px;
}

.section > * {
  position: relative;
  z-index: 1;
}

.section-head {
  max-width: 820px;
  margin-bottom: 28px;
}

.section-head.dual {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.7fr);
  gap: 28px;
  align-items: end;
}

.section-head h2,
.footer h2 {
  font-size: clamp(1.8rem, 3.6vw, 3.1rem);
}

.strip-layout,
.base-stage,
.signal-board,
.footer {
  display: grid;
  gap: 18px;
}

.band-copy,
.text-strip,
.base-ledger,
.signal-feed,
.role-ledger {
  padding: 28px 0;
}

.intro-spotlight {
  position: relative;
  min-height: 64vh;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro-sequence {
  width: min(980px, 100%);
  text-align: left;
  display: grid;
  gap: 8px;
  padding: 36px 0;
}

.intro-line {
  margin: 0;
  color: rgba(238, 244, 255, 0.94);
  font-family: "Avenir Next Condensed", "Arial Narrow", "PingFang SC", sans-serif;
  font-size: clamp(1.28rem, 2.35vw, 2.2rem);
  line-height: 1.4;
  letter-spacing: 0.01em;
  opacity: 0.08;
}

.intro-line-muted {
  margin-top: 10px;
  max-width: 56em;
  font-size: clamp(0.94rem, 1.28vw, 1.05rem);
  line-height: 2;
  color: var(--muted);
}

.band-points div,
.text-row,
.ledger-row,
.feed-row,
.role-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.band-points div:last-child,
.text-row:last-child,
.ledger-row:last-child,
.feed-row:last-child,
.role-row:last-child {
  border-bottom: 0;
}

.band-points span,
.text-row span,
.ledger-row span,
.feed-row span {
  color: var(--accent);
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.collection-swiper {
  position: relative;
  width: 100vw;
  min-height: 100vh;
  margin-left: calc(50% - 50vw);
  overflow: hidden;
  touch-action: pan-y;
}

.collection-slide {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.collection-slide-media,
.collection-slide-media img {
  width: 100%;
  height: 100%;
}

.collection-slide-media {
  position: absolute;
  inset: 0;
}

.collection-slide-media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(4, 8, 16, 0.82) 0%, rgba(4, 8, 16, 0.48) 34%, rgba(4, 8, 16, 0.12) 68%, rgba(4, 8, 16, 0.1) 100%),
    linear-gradient(180deg, rgba(4, 8, 16, 0.06), rgba(4, 8, 16, 0.48));
}

.collection-slide-media img {
  object-fit: cover;
  filter: saturate(0.94) contrast(1.01);
}

.collection-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    linear-gradient(135deg, rgba(10, 16, 28, 0.96), rgba(8, 13, 24, 0.84));
  overflow: hidden;
}

.collection-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0%, rgba(126, 228, 255, 0.16) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: scan 3.2s linear infinite;
}

.collection-placeholder::after {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px dashed rgba(126, 228, 255, 0.14);
}

.collection-placeholder-core {
  width: min(24vw, 220px);
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(126, 228, 255, 0.18);
  background:
    radial-gradient(circle at center, rgba(126, 228, 255, 0.08), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent);
  box-shadow: inset 0 0 40px rgba(126, 228, 255, 0.04);
}

.collection-placeholder span {
  position: absolute;
  left: 34px;
  bottom: 34px;
  color: rgba(126, 228, 255, 0.84);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.collection-overlay {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 14px;
  width: min(540px, calc(100% - 40px));
  padding: 46px 0 92px;
  margin-left: max(16px, calc((100vw - 1180px) / 2));
}

.collection-overlay span {
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.collection-overlay h3 {
  margin: 0;
  font-size: clamp(2.3rem, 4.6vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: 0.01em;
}

.collection-overlay p {
  margin: 0;
  max-width: 30em;
  color: rgba(238, 244, 255, 0.76);
  line-height: 1.95;
  font-size: 1rem;
}

.collection-controls {
  position: absolute;
  left: max(16px, calc((100vw - 1180px) / 2));
  right: max(16px, calc((100vw - 1180px) / 2));
  bottom: 28px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.collection-pagination {
  display: flex;
  align-items: center;
  gap: 10px;
}

.collection-pagination .swiper-pagination-bullet {
  width: 42px;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
  opacity: 1;
}

.collection-pagination .swiper-pagination-bullet-active {
  background: var(--accent);
  box-shadow: 0 0 18px rgba(126, 228, 255, 0.22);
}

.collection-nav {
  display: flex;
  gap: 10px;
}

.collection-prev,
.collection-next {
  min-width: 92px;
  height: 42px;
  border: 1px solid rgba(126, 228, 255, 0.24);
  background: rgba(4, 8, 16, 0.34);
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.collections .section-head {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  z-index: 4;
  width: min(1180px, calc(100% - 32px));
  max-width: none;
  display: block;
  padding-top: 34px;
  margin-bottom: 0;
}

.collection-block h3,
.timeline-node h3,
.signal-main h3 {
  margin: 0 0 12px;
  font-size: 1.28rem;
  line-height: 1.2;
}

.strip-layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: stretch;
}

.visual-strip,
.base-visual,
.event-strip,
.network-map,
.certificate-line {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(12, 20, 37, 0.88), rgba(6, 10, 17, 0.76));
}

.visual-strip {
  width: min(100%, 560px);
  aspect-ratio: 1 / 1;
  min-height: 0;
  justify-self: start;
  background:
    linear-gradient(180deg, rgba(6, 12, 22, 0.18), rgba(6, 12, 22, 0.76)),
    url("./assets/reptile-logo.png") center/34% no-repeat,
    linear-gradient(120deg, #15253f 0%, #0a111d 100%);
}

.strip-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.96) contrast(1.02);
}

.strip-store::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(6, 12, 22, 0.08), rgba(6, 12, 22, 0.76) 78%),
    linear-gradient(90deg, rgba(6, 12, 22, 0.22), transparent 38%);
}

.strip-copy,
.base-visual-inner,
.event-meta {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
}

.strip-copy,
.base-visual-inner {
  display: grid;
  gap: 10px;
  z-index: 2;
}

.strip-store .strip-copy {
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px 28px 22px;
  background: linear-gradient(180deg, rgba(6, 12, 22, 0.12), rgba(6, 12, 22, 0.88));
  box-shadow: 0 10px 24px rgba(2, 8, 18, 0.18);
}

.strip-store .strip-copy p {
  color: rgba(238, 244, 255, 0.8);
}

.strip-copy em,
.base-visual-inner em {
  font-style: normal;
  color: rgba(238, 244, 255, 0.92);
  font-size: clamp(1.05rem, 2.2vw, 1.6rem);
  line-height: 1.45;
  letter-spacing: 0.01em;
}

.strip-copy p,
.base-visual-inner p {
  margin: 0;
}

.placeholder-belt,
.event-belt {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

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

.placeholder-panel,
.event-strip {
  position: relative;
  min-height: 220px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(10, 17, 30, 0.96), rgba(8, 13, 24, 0.72));
}

.store-panel {
  margin: 0;
}

.store-panel img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.96) contrast(1.02);
}

.store-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 12, 20, 0.08), rgba(7, 12, 20, 0.84) 80%),
    linear-gradient(90deg, rgba(7, 12, 20, 0.18), transparent 42%);
  z-index: 1;
}

.event-illustration img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.02);
}

.event-illustration::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 12, 20, 0.06), rgba(7, 12, 20, 0.82) 78%),
    linear-gradient(90deg, rgba(7, 12, 20, 0.16), transparent 36%);
  z-index: 1;
}

.placeholder-scan {
  position: absolute;
  inset: 0;
}

.placeholder-scan::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0%, rgba(126, 228, 255, 0.14) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: scan 3s linear infinite;
}

.placeholder-scan::after {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px dashed rgba(126, 228, 255, 0.14);
}

.placeholder-copy {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 20px;
  display: grid;
  gap: 6px;
  z-index: 2;
}

.placeholder-copy strong,
.event-meta strong {
  font-size: 1rem;
}

.placeholder-copy span,
.event-meta span {
  color: var(--muted);
}

.event-meta {
  z-index: 2;
}

.timeline-pin {
  position: relative;
  min-height: auto;
}

.timeline-viewport {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-height: calc(100vh - 96px);
  display: flex;
  align-items: flex-start;
  width: 100%;
  padding: 10px 0 28px;
  background: transparent;
}

.timeline-track {
  display: grid;
  gap: 22px;
  position: relative;
  padding: 2px 0 8px;
  width: min(820px, 100%);
  margin: 0 auto;
  background: transparent;
}

.timeline-track::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(126, 228, 255, 0.2), rgba(126, 228, 255, 0.04));
}

.timeline-node {
  position: relative;
  padding: 10px 0 10px 38px;
  width: 100%;
  opacity: 1;
}

.timeline-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 10px;
  height: 10px;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(126, 228, 255, 0.46);
}

.timeline-node p {
  margin: 0;
  max-width: 40em;
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.system-axis {
  min-height: 220px;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 20, 36, 0.32), rgba(12, 20, 36, 0.06));
}

.system-axis strong {
  display: block;
  margin: 14px 0 12px;
  font-size: 1.26rem;
}

.base-stage {
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  align-items: start;
}

.base-visual {
  min-height: 0;
  width: min(100%, 560px);
  height: auto;
  aspect-ratio: 1 / 1;
  justify-self: start;
  background: none;
}

.base-swiper {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(8, 15, 28, 0.74), rgba(8, 15, 28, 0.18));
  overflow: hidden;
  width: 100%;
  height: 100%;
  touch-action: pan-y;
}

.base-swiper .swiper-wrapper {
  height: 100%;
}

.base-slide {
  position: relative;
  display: block;
  margin: 0;
  min-height: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: rgba(10, 16, 28, 0.72);
}

.base-slide img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 0;
}

.base-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 8, 16, 0.12), rgba(4, 8, 16, 0.74)),
    linear-gradient(90deg, rgba(4, 8, 16, 0.12), rgba(4, 8, 16, 0.44));
  z-index: 1;
}

.base-slide figcaption {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 72px;
  z-index: 2;
  display: grid;
  gap: 8px;
}

.base-slide figcaption strong {
  font-size: 1.2rem;
  line-height: 1.3;
}

.base-slide figcaption span {
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.base-slide figcaption em {
  font-style: normal;
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.9rem;
}

.base-controls {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 18px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.base-pagination {
  display: flex;
  gap: 10px;
}

.base-pagination .swiper-pagination-bullet {
  width: 32px;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
  opacity: 1;
}

.base-pagination .swiper-pagination-bullet-active {
  background: var(--accent);
}

.base-nav {
  display: flex;
  gap: 10px;
}

.base-prev,
.base-next {
  min-width: 84px;
  height: 38px;
  border: 1px solid rgba(126, 228, 255, 0.24);
  background: rgba(4, 8, 16, 0.3);
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.base-swiper .swiper-button-disabled {
  opacity: 0.45;
}

.base-ledger {
  min-height: 560px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
}

.compact-row {
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
}

.compact-row span {
  font-size: 0.94rem;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 600;
  color: var(--accent);
}

.compact-row p {
  margin: 0;
  line-height: 1.82;
}

.signal-board {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  align-items: stretch;
}

.signal-main,
.signal-feed {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
}

.signal-feed {
  padding-left: 18px;
}

.network-map {
  min-height: 520px;
  background:
    radial-gradient(circle at center, rgba(77, 183, 255, 0.12), transparent 36%),
    linear-gradient(180deg, rgba(11, 18, 32, 0.9), rgba(7, 11, 20, 0.76));
}

.network-core,
.network-node {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  background: rgba(5, 10, 18, 0.78);
}

.network-core {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-height: 72px;
  padding: 0 24px;
  font-size: 0.92rem;
  box-shadow: 0 0 30px var(--glow);
}

.node-1 { left: 8%; top: 18%; }
.node-2 { right: 10%; top: 16%; }
.node-3 { left: 10%; bottom: 22%; }
.node-4 { right: 10%; bottom: 20%; }
.node-5 { left: 24%; top: 64%; }
.node-6 { right: 22%; top: 62%; }

.network-map::before,
.network-map::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.network-map::before {
  background:
    linear-gradient(135deg, transparent 0 49.5%, rgba(126, 228, 255, 0.06) 50%, transparent 50.5%),
    linear-gradient(45deg, transparent 0 49.5%, rgba(126, 228, 255, 0.04) 50%, transparent 50.5%);
}

.role-ledger {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.role-row strong {
  font-size: 1.08rem;
}

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

.role-card {
  min-height: 240px;
  padding: 28px 28px 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent),
    linear-gradient(180deg, rgba(10, 19, 33, 0.3), rgba(7, 13, 23, 0.08));
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.role-card:nth-child(2n) {
  border-right: 0;
}

.role-card:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.role-card:hover {
  transform: translateY(-3px);
  border-color: rgba(126, 228, 255, 0.22);
  background:
    linear-gradient(180deg, rgba(126, 228, 255, 0.04), transparent),
    linear-gradient(180deg, rgba(10, 19, 33, 0.38), rgba(7, 13, 23, 0.12));
}

.role-card span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.role-card strong {
  display: block;
  margin-bottom: 12px;
  font-size: clamp(1.18rem, 2vw, 1.5rem);
  line-height: 1.2;
}

.role-card p {
  margin: 0;
  max-width: 30em;
  color: var(--muted);
  line-height: 1.9;
}

.certificate-line {
  min-height: 240px;
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 30px;
}

.certificate-line strong {
  font-size: clamp(1.7rem, 3.8vw, 3rem);
  line-height: 1.05;
}

.footer {
  grid-template-columns: 1fr;
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
}

.footer-bottom {
  display: grid;
  gap: 8px;
}

.footer-bottom p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.8;
}

[data-animate] {
  opacity: 0;
}

@keyframes scan {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

@keyframes auroraFloat {
  from {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.78;
  }
  to {
    transform: translate3d(0, -14px, 0) scale(1.04);
    opacity: 1;
  }
}

@keyframes auroraShift {
  from {
    transform: translateX(-4%) translateY(0%);
  }
  to {
    transform: translateX(4%) translateY(3%);
  }
}

@keyframes linePulse {
  0%, 72%, 100% {
    opacity: 0;
    transform: scaleX(0.5);
  }
  78%, 86% {
    opacity: 1;
    transform: scaleX(1);
  }
}

@media (max-width: 1080px) {
  .hero,
  .section-head.dual,
  .strip-layout,
  .base-stage,
  .signal-board,
  .footer,
  .event-belt {
    grid-template-columns: 1fr;
  }

  .collection-swiper {
    display: block;
    min-height: 100vh;
  }

  .system-grid {
    grid-template-columns: 1fr;
  }

  .base-stage {
    gap: 20px;
  }

  .base-visual,
  .base-slide {
    min-height: 0;
  }

  .base-visual {
    width: min(100%, 520px);
    height: auto;
  }

  .visual-strip {
    width: min(100%, 520px);
    height: auto;
  }

  .base-slide {
    min-height: 0;
  }

  .base-ledger {
    min-height: 520px;
  }

  .compact-row {
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .role-grid {
    grid-template-columns: 1fr;
  }

  .role-card {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .role-card:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .role-card:last-child {
    border-bottom: 0;
  }

  .placeholder-belt {
    grid-template-columns: 1fr;
  }

  .network-map {
    min-height: 720px;
  }

  .timeline-viewport {
    min-height: 82vh;
  }
}

@media (max-width: 768px) {
  .masthead,
  .section,
  .footer {
    width: min(100% - 24px, 1180px);
  }

  .section {
    min-height: auto;
    padding: 64px 0 28px;
  }

  .nav {
    display: grid;
    gap: 18px;
  }

  .nav-links {
    justify-content: flex-start;
    gap: 12px 16px;
  }

  .hero {
    min-height: auto;
    padding-top: 34px;
  }

  .hero-copy h1 {
    font-size: clamp(2.3rem, 11vw, 3.6rem);
  }

  .hero {
    padding-top: 26px;
  }

  .hero-mark {
    justify-items: start;
  }

  .hero-mark-meta {
    justify-content: flex-start;
  }

  .band-points div,
  .text-row,
  .ledger-row,
  .feed-row,
  .role-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .intro-band {
    min-height: auto;
  }

  .intro-spotlight {
    min-height: auto;
    padding: 18px 0;
  }

  .intro-line {
    font-size: clamp(1.3rem, 6.4vw, 2.2rem);
    text-align: left;
  }

  .intro-sequence {
    text-align: left;
  }

  .intro-line-muted {
    font-size: 0.98rem;
  }

  .collection-slide,
  .collection-overlay {
    min-height: 68vh;
  }

  .collection-swiper {
    touch-action: auto;
  }

  .collections .section-head {
    width: min(100% - 24px, 1180px);
    padding-top: 24px;
  }

  .collection-overlay {
    width: min(100% - 24px, 520px);
    margin-left: 18px;
    padding: 34px 0 78px;
  }

  .collection-placeholder-core {
    width: min(46vw, 180px);
  }

  .collection-placeholder::before {
    animation: none;
  }

  .collection-overlay h3 {
    font-size: clamp(2rem, 8.6vw, 3.4rem);
  }

  .collection-controls {
    left: 18px;
    right: 18px;
    bottom: 18px;
    flex-direction: column;
    align-items: flex-start;
  }

  .collection-prev,
  .collection-next {
    min-width: 78px;
  }

  .network-map {
    min-height: auto;
    display: grid;
    gap: 12px;
    padding: 18px;
  }

  .base-visual,
  .visual-strip {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
  }

  .base-visual {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
  }

  .base-slide {
    min-height: 0;
  }

  .base-swiper {
    touch-action: auto;
  }

  .base-ledger {
    min-height: auto;
  }

  .compact-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .network-node,
  .network-core {
    transform: none !important;
  }

  .network-core,
  .network-node {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
    transform: none;
    justify-content: flex-start;
  }

  .certificate-line,
  .system-axis {
    padding: 22px;
  }

  .timeline-viewport {
    min-height: auto;
    padding: 6px 0;
  }

  .timeline-pin {
    min-height: auto;
  }

  .timeline-track {
    width: 100%;
  }

  .timeline-track::before {
    left: 4px;
  }

  .timeline-node {
    width: 100%;
    padding: 8px 0 8px 28px;
  }
}