:root {
  --bg: #f6f8fd;
  --bg-soft: #eef4ff;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --surface-border: rgba(102, 138, 196, 0.16);
  --text: #101828;
  --text-soft: #5f6f8c;
  --blue: #2f66f5;
  --blue-deep: #1f4cc6;
  --blue-soft: #7db7ff;
  --rose: #ff8ab1;
  --cyan: #67d6ff;
  --violet: #8f8cff;
  --ink: #161d30;
  --shadow-lg: 0 32px 80px rgba(74, 103, 170, 0.12);
  --shadow-md: 0 18px 46px rgba(89, 115, 177, 0.1);
  --shadow-sm: 0 12px 30px rgba(85, 112, 173, 0.08);
  --radius-xl: 36px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --radius-sm: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Noto Sans SC", "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 14%, rgba(179, 210, 255, 0.54), transparent 24%),
    radial-gradient(circle at 90% 12%, rgba(175, 241, 234, 0.4), transparent 20%),
    linear-gradient(180deg, #fafcff 0%, #f4f7fe 45%, #fbfcff 100%);
}

body {
  overflow-x: hidden;
}

a,
button {
  font: inherit;
}

.gexp-page {
  position: relative;
  padding: 0 0 96px;
}

.floating-contact {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 172px;
  padding: 16px 18px;
  border: 1px solid rgba(80, 185, 128, 0.2);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(245, 255, 249, 0.97), rgba(233, 250, 240, 0.95));
  box-shadow: 0 20px 48px rgba(77, 160, 114, 0.16);
  text-align: left;
  cursor: pointer;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.floating-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(120, 223, 166, 0.18), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.floating-contact-label {
  position: relative;
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.floating-contact strong {
  position: relative;
  color: #166534;
  font-family: "JetBrains Mono", monospace;
  font-size: 20px;
  line-height: 1.2;
}

.floating-contact small {
  position: relative;
  color: #16a34a;
  font-size: 13px;
  font-weight: 700;
}

.section-frame {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
}

.hero-section {
  position: relative;
  padding: 32px 0 28px;
  overflow: hidden;
}

.hero-shell {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: 780px;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: none;
  pointer-events: none;
}

.hero-aurora {
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  filter: blur(18px);
  opacity: 0.6;
  pointer-events: none;
}

.hero-aurora-left {
  left: -110px;
  top: 120px;
  background: radial-gradient(circle, rgba(169, 200, 255, 0.8) 0%, rgba(169, 200, 255, 0) 72%);
}

.hero-aurora-right {
  right: -80px;
  top: 64px;
  background: radial-gradient(circle, rgba(171, 245, 238, 0.76) 0%, rgba(171, 245, 238, 0) 70%);
}

.hero-fan {
  position: absolute;
  left: 50%;
  top: 56px;
  width: min(92vw, 1080px);
  aspect-ratio: 1;
  transform: translateX(-50%) rotate(0deg);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0) 0 18%, rgba(255, 255, 255, 0.28) 18.4%, rgba(255, 255, 255, 0) 19.4%),
    repeating-conic-gradient(from -10deg, rgba(76, 122, 210, 0.15) 0deg 2.8deg, rgba(76, 122, 210, 0.02) 2.8deg 5.6deg);
  mask: radial-gradient(circle at 50% 50%, transparent 0 12%, rgba(0, 0, 0, 1) 12.5% 62%, transparent 62.4%);
  opacity: 0.52;
  pointer-events: none;
  animation: hero-fan-spin 42s linear infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 124px 28px 36px;
}

.hero-kicker,
.section-kicker {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-content h1,
.section-heading h2,
.reason-card h3,
.model-card h3 {
  margin: 0;
  letter-spacing: -0.04em;
}

.hero-content h1 {
  max-width: 980px;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1.12;
  color: #2a63ef;
}

.hero-description {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--text-soft);
  font-size: clamp(16px, 1.35vw, 21px);
  line-height: 1.75;
}

.endpoint-card {
  width: min(940px, 100%);
  margin-top: 34px;
  padding: 18px;
}

.surface,
.surface-strong {
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.surface {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.76));
  box-shadow: var(--shadow-md);
}

.surface-strong {
  background: linear-gradient(180deg, var(--surface-strong), rgba(249, 252, 255, 0.96));
  box-shadow: var(--shadow-md);
}

.endpoint-label {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-size: 14px;
}

.endpoint-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.endpoint-code {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 15px 18px;
  border-radius: var(--radius-sm);
  background: rgba(239, 244, 252, 0.94);
  overflow-x: auto;
  scrollbar-width: none;
}

.endpoint-code::-webkit-scrollbar {
  display: none;
}

.endpoint-base,
.endpoint-suffix {
  font-family: "JetBrains Mono", monospace;
  white-space: nowrap;
}

.endpoint-base {
  color: #24344d;
  font-size: clamp(15px, 1.25vw, 18px);
}

.endpoint-suffix {
  color: var(--blue);
  font-size: clamp(14px, 1.15vw, 17px);
  font-weight: 700;
}

.endpoint-copy {
  padding: 14px 18px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #edf3ff);
  color: var(--blue-deep);
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(70, 110, 188, 0.12);
}

.endpoint-status {
  display: inline-block;
  min-height: 22px;
  margin-top: 10px;
  color: #1f9b64;
  font-size: 14px;
  font-weight: 700;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  margin-top: 56px;
}

.stat-card {
  padding: 8px 10px 0;
}

.stat-card strong {
  display: block;
  font-family: "Manrope", "JetBrains Mono", sans-serif;
  font-size: clamp(34px, 3.2vw, 56px);
  font-weight: 800;
  line-height: 1;
  color: #192335;
}

.stat-card span {
  display: block;
  margin-top: 10px;
  color: var(--text-soft);
  font-size: clamp(14px, 1.1vw, 18px);
}

.models-section,
.reasons-section {
  padding-top: 44px;
}

.section-heading {
  text-align: center;
}

.section-heading h2 {
  font-size: clamp(28px, 3.1vw, 46px);
  line-height: 1.14;
}

.section-description {
  max-width: 860px;
  margin: 18px auto 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.8;
}

.model-grid,
.reason-grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

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

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

.model-card,
.reason-card {
  position: relative;
  min-height: 210px;
  padding: 24px;
}

.model-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.model-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.24);
}

.model-icon-image {
  width: 24px;
  height: 24px;
  display: block;
  object-fit: contain;
}

.model-icon-blue {
  background: linear-gradient(135deg, #a7c6ff, #4d82ff);
}

.model-icon-rose {
  background: linear-gradient(135deg, #ffc1d8, #ff7ba8);
}

.model-icon-ink {
  background: linear-gradient(135deg, #525d7a, #141b2d);
}

.model-icon-dark {
  background: linear-gradient(135deg, #555f77, #0f1728);
}

.model-icon-cyan {
  background: linear-gradient(135deg, #9de8ff, #2399ff);
}

.model-icon-violet {
  background: linear-gradient(135deg, #cbc2ff, #7068ff);
}

.model-tag {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.model-card h3,
.reason-card h3 {
  margin-top: 18px;
  font-size: 28px;
  line-height: 1.15;
}

.model-card p,
.reason-card p {
  margin: 12px 0 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.75;
}

.reason-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(47, 102, 245, 0.1);
  color: var(--blue);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@keyframes hero-fan-spin {
  from {
    transform: translateX(-50%) rotate(0deg);
  }

  to {
    transform: translateX(-50%) rotate(360deg);
  }
}

@media (max-width: 1120px) {
  .hero-content {
    padding: 102px 34px 42px;
  }

  .hero-fan {
    width: min(100vw, 920px);
    top: 78px;
  }

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

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

  .model-card h3,
  .reason-card h3 {
    font-size: 24px;
  }
}

@media (max-width: 840px) {
  .section-frame {
    width: min(100% - 24px, 1280px);
  }

  .hero-section {
    padding: 8px 0 18px;
  }

  .hero-shell {
    min-height: 0;
  }

  .hero-fan {
    top: 120px;
    width: min(128vw, 760px);
  }

  .floating-contact {
    right: 16px;
    bottom: 16px;
    min-width: 160px;
    padding: 14px 16px;
  }

  .hero-content {
    width: min(100% - 24px, 1280px);
    padding: 64px 20px 20px;
  }

  .hero-content h1 {
    max-width: 680px;
    font-size: clamp(32px, 8vw, 50px);
  }

  .hero-description {
    font-size: 15px;
    line-height: 1.75;
  }

  .endpoint-card {
    margin-top: 24px;
    padding: 14px;
  }

  .endpoint-bar {
    grid-template-columns: 1fr;
  }

  .endpoint-copy {
    width: 100%;
  }

  .model-grid,
  .reason-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 30px;
    gap: 16px 10px;
  }

  .stat-card {
    padding: 4px 0 0;
  }

  .stat-card strong {
    font-size: clamp(32px, 10vw, 46px);
  }

  .stat-card span {
    font-size: 15px;
  }

  .model-card,
  .reason-card {
    min-height: auto;
  }

  .models-section,
  .reasons-section {
    padding-top: 34px;
  }

  .section-heading h2 {
    font-size: clamp(26px, 7vw, 38px);
  }
}

@media (max-width: 560px) {
  .gexp-page {
    padding-bottom: 72px;
  }

  .hero-section {
    padding-bottom: 12px;
  }

  .floating-contact {
    right: 12px;
    bottom: 12px;
    min-width: 0;
    width: calc(100% - 24px);
    border-radius: 18px;
  }

  .floating-contact strong {
    font-size: 18px;
  }

  .hero-shell {
    min-height: 0;
  }

  .hero-fan {
    top: 136px;
    width: min(150vw, 640px);
    opacity: 0.42;
  }

  .hero-content {
    width: calc(100% - 24px);
    padding: 54px 12px 12px;
  }

  .hero-kicker,
  .section-kicker {
    letter-spacing: 0.12em;
  }

  .hero-description {
    margin-top: 14px;
    font-size: 14px;
  }

  .endpoint-label {
    font-size: 14px;
  }

  .endpoint-card {
    margin-top: 18px;
    padding: 12px;
  }

  .endpoint-bar {
    gap: 10px;
  }

  .endpoint-code {
    gap: 8px;
    padding: 13px 12px;
    border-radius: 14px;
  }

  .endpoint-base,
  .endpoint-suffix {
    font-size: 14px;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    margin-top: 22px;
    gap: 14px 10px;
  }

  .stat-card strong {
    font-size: clamp(26px, 8.8vw, 36px);
  }

  .stat-card span {
    margin-top: 6px;
    font-size: 14px;
  }

  .model-card,
  .reason-card {
    padding: 20px;
    border-radius: 22px;
  }

  .model-card h3,
  .reason-card h3 {
    margin-top: 18px;
    font-size: 24px;
  }

  .model-card p,
  .reason-card p,
  .section-description {
    font-size: 14px;
    line-height: 1.75;
  }

  .models-section,
  .reasons-section {
    padding-top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-fan,
  .reveal {
    transition: none;
  }

  .hero-fan {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}