:root {
  --bg: #f5f9ff;
  --fg: #0f172a;
  --muted: rgba(15, 23, 42, 0.66);
  --muted2: rgba(15, 23, 42, 0.48);
  --card: rgba(255, 255, 255, 0.92);
  --card2: rgba(255, 255, 255, 0.72);
  --accent: #2b6cff;
  --accent2: rgba(43, 108, 255, 0.16);
  --accent3: rgba(34, 209, 238, 0.22);
  --radius-xl: 22px;
  --radius-lg: 18px;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
  --shadow-soft: 0 12px 28px rgba(15, 23, 42, 0.1);
  --border: 1px solid rgba(43, 108, 255, 0.14);
  --pad-section: 88px;
  --pad-card: 28px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--fg);
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(245, 249, 255, 0.98), rgba(236, 246, 255, 0.92) 46%, rgba(245, 249, 255, 0.98)),
    radial-gradient(1100px 620px at 76% -12%, rgba(43, 108, 255, 0.2), transparent 62%),
    radial-gradient(900px 520px at 18% 6%, rgba(34, 209, 238, 0.16), transparent 60%),
    radial-gradient(1200px 720px at 80% 88%, rgba(34, 209, 238, 0.12), transparent 60%),
    radial-gradient(900px 520px at 12% 92%, rgba(43, 108, 255, 0.1), transparent 62%);
}

button {
  font: inherit;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 1px 1px, rgba(15, 23, 42, 0.08) 1px, transparent 0) 0 0 / 34px 34px,
    repeating-linear-gradient(90deg, rgba(43, 108, 255, 0.05) 0 1px, transparent 1px 200px),
    repeating-linear-gradient(0deg, rgba(34, 209, 238, 0.035) 0 1px, transparent 1px 200px),
    radial-gradient(1200px 620px at 55% -12%, rgba(43, 108, 255, 0.1), transparent 60%);
  opacity: 0.55;
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section {
  padding: var(--pad-section) 0;
  position: relative;
  z-index: 1;
}

.section.models {
  padding-top: 56px;
  padding-bottom: 64px;
}

.section.compute {
  padding-top: 64px;
}

.section.about {
  padding-bottom: 24px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 650ms ease, transform 650ms ease;
}

[data-reveal].in-view {
  opacity: 1;
  transform: translateY(0);
}

.hero {
  padding: 0;
  min-height: 260px;
  height: clamp(260px, 34vh, 360px);
  display: flex;
  align-items: stretch;
  position: relative;
  overflow: hidden;
  background-image: url("./image/banner.png");
  background-size: contain;
  background-position: right center;
  background-repeat: no-repeat;
  background-color: rgba(245, 249, 255, 0.95);
}

.hero-frost {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(245, 249, 255, 0.94), rgba(245, 249, 255, 0.84) 44%, rgba(245, 249, 255, 0.38) 68%, rgba(245, 249, 255, 0.06) 86%, rgba(245, 249, 255, 0)),
    radial-gradient(900px 420px at 30% 0%, rgba(43, 108, 255, 0.1), transparent 62%);
  border-bottom: 1px solid rgba(43, 108, 255, 0.1);
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 6;
  padding: 10px 0;
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(43, 108, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.topbar-inner {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 18px;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.topbar-logo {
  display: inline-block;
  width: 44px;
  height: 44px;
  line-height: 0;
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
  filter: drop-shadow(0 6px 14px rgba(59, 130, 246, 0.18));
}

.topbar-logo svg,
.topbar-logo img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
}

.topbar-brand-text {
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.01em;
  color: rgba(15, 23, 42, 0.96);
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  justify-content: flex-end;
}

.topbar-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(43, 108, 255, 0.14);
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  place-items: center;
  color: rgba(15, 23, 42, 0.72);
  transition: border-color 220ms ease, transform 220ms ease;
}

.topbar-menu-btn:hover {
  border-color: rgba(43, 108, 255, 0.28);
}

.icon-menu {
  width: 18px;
  height: 12px;
  position: relative;
  display: block;
}

.icon-menu::before,
.icon-menu::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.icon-menu::before {
  top: 0;
  box-shadow: 0 5px 0 0 currentColor;
}

.icon-menu::after {
  bottom: 0;
}

.topbar-link {
  text-decoration: none;
  color: rgba(15, 23, 42, 0.7);
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 13px;
  padding: 10px 10px;
  border-radius: 12px;
  transition: background 180ms ease, color 180ms ease;
}

.topbar-link:hover {
  background: rgba(43, 108, 255, 0.08);
  color: rgba(15, 23, 42, 0.88);
}

.hero-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 24px;
  position: relative;
  z-index: 1;
  padding-top: 86px;
  padding-bottom: 40px;
}

.hero-title {
  font-size: clamp(44px, 6vw, 68px);
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1.05;
  color: rgba(15, 23, 42, 0.96);
}

.hero-subtitle {
  margin-top: 0;
  font-size: 16px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.hero-desc {
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.75;
  max-width: 520px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 28px;
}

.section-kicker {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(43, 108, 255, 0.85);
  font-weight: 800;
}

.section-title {
  margin-top: 10px;
  font-size: 28px;
  font-weight: 900;
  color: rgba(15, 23, 42, 0.94);
  letter-spacing: 0.02em;
}

.section-desc {
  margin-top: 10px;
  color: var(--muted);
  max-width: 760px;
  line-height: 1.7;
}

.side-label {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
  justify-content: flex-end;
}

.side-label-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: rgba(15, 23, 42, 0.52);
  user-select: none;
}

.side-label-line {
  width: 1px;
  height: 118px;
  background: linear-gradient(180deg, rgba(43, 108, 255, 0.7), rgba(43, 108, 255, 0.06));
  position: relative;
  overflow: hidden;
  border-radius: 999px;
}

.side-label-line::after {
  content: "";
  position: absolute;
  inset: -30% 0;
  background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.35), transparent);
  animation: dataLine 4.8s linear infinite;
  opacity: 0.55;
}

@keyframes dataLine {
  from {
    transform: translateY(-40%);
  }
  to {
    transform: translateY(40%);
  }
}

.card {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--card);
  border: 1px solid rgba(43, 108, 255, 0.12);
  box-shadow: var(--shadow-soft);
  padding: var(--pad-card);
  text-align: left;
  cursor: pointer;
  outline: none;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
  color: inherit;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    radial-gradient(600px 220px at 20% 10%, rgba(43, 108, 255, 0.12), transparent 60%),
    radial-gradient(520px 200px at 75% 0%, rgba(34, 209, 238, 0.12), transparent 60%);
  opacity: 0.65;
  pointer-events: none;
}

.card:focus-visible {
  box-shadow: 0 0 0 4px rgba(43, 108, 255, 0.18), var(--shadow);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(43, 108, 255, 0.28);
  box-shadow: var(--shadow);
}

.card-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.card-title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: rgba(15, 23, 42, 0.92);
}

.model-card {
  grid-column: span 2;
  min-height: 212px;
}

.model-card-body {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
}

.card-illus {
  margin-top: 0;
  height: 120px;
  padding: 8px 10px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(43, 108, 255, 0.1);
  overflow: hidden;
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
}

.card-illus.illus-bg {
  --illus-box: 100%;
  --illus-size: contain;
  --illus-pos: center;
  --illus-crop-top: 0%;
  --illus-crop-right: 0%;
  --illus-crop-bottom: 0%;
  --illus-crop-left: 0%;
  padding: 0;
}

.card-illus.illus-bg::before {
  content: "";
  width: var(--illus-box);
  height: 100%;
  background-image: var(--illus-image);
  background-repeat: no-repeat;
  background-position: var(--illus-pos);
  background-size: var(--illus-size);
  border-radius: 18px;
  clip-path: inset(
    var(--illus-crop-top)
    var(--illus-crop-right)
    var(--illus-crop-bottom)
    var(--illus-crop-left)
    round 18px
  );
  display: block;
}

.card-illus.illus-bg[data-illus="gpt"] {
  --illus-size: auto 126%;
  --illus-crop-top: 1.2%;
  --illus-crop-right: 6.8%;
  --illus-crop-bottom: 1.2%;
  --illus-crop-left: 6.8%;
}

.card-illus.illus-bg[data-illus="gemini"] {
  --illus-size: auto 128%;
  --illus-crop-top: 2.6%;
  --illus-crop-right: 3.8%;
  --illus-crop-bottom: 2.6%;
  --illus-crop-left: 3.8%;
}

.card-illus.illus-bg[data-illus="claude"] {
  --illus-size: auto 132%;
  --illus-crop-top: 1%;
  --illus-crop-right: 5.2%;
  --illus-crop-bottom: 1%;
  --illus-crop-left: 5.2%;
}

.card-illus.illus-bg[data-illus="glm"] {
  --illus-size: auto 112%;
  --illus-pos: 43% 50%;
}

.card-illus svg {
  display: block;
  width: 100%;
  height: 100%;
}

.card-illus img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: 22px;
}

.model-card-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-tag {
  margin-top: 0;
  color: rgba(15, 23, 42, 0.74);
  font-weight: 700;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
  line-height: 1.55;
  text-align: left;
}

.card-cta {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(15, 23, 42, 0.48);
  letter-spacing: 0.06em;
  position: relative;
  z-index: 1;
  text-align: left;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
}

.section-sep {
  position: relative;
  height: 108px;
  z-index: 1;
}

.sep-band {
  position: absolute;
  inset: 0;
  margin: auto;
  height: 62px;
  width: min(1180px, calc(100% - 48px));
  left: 50%;
  transform: translateX(-50%);
  border-radius: 999px;
  background:
    radial-gradient(260px 120px at 18% 50%, rgba(34, 209, 238, 0.18), transparent 65%),
    radial-gradient(260px 120px at 82% 50%, rgba(43, 108, 255, 0.18), transparent 65%),
    linear-gradient(90deg, transparent, rgba(43, 108, 255, 0.22), transparent);
  opacity: 0.78;
  filter: blur(0.2px);
}

.sep-lines {
  position: absolute;
  inset: 0;
  width: min(1180px, calc(100% - 48px));
  left: 50%;
  transform: translateX(-50%);
  background:
    linear-gradient(90deg, transparent, rgba(34, 209, 238, 0.26), transparent),
    repeating-linear-gradient(90deg, rgba(15, 23, 42, 0.1) 0 1px, transparent 1px 110px);
  opacity: 0.24;
  mask-image: linear-gradient(90deg, transparent, black 20%, black 80%, transparent);
}

.sep-lines::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(15, 23, 42, 0.26), transparent);
  animation: sepFlow 6.8s linear infinite;
  opacity: 0.34;
}

@keyframes sepFlow {
  from {
    transform: translateX(-40%);
  }
  to {
    transform: translateX(40%);
  }
}

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

.gpu-card {
  border-radius: 22px;
  overflow: hidden;
}

.gpu-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.gpu-title {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.gpu-sub {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(15, 23, 42, 0.5);
  text-transform: uppercase;
  font-weight: 800;
}

.gpu-metrics {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
  position: relative;
  z-index: 1;
}

.metric {
  padding: 12px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(43, 108, 255, 0.1);
}

.metric-k {
  font-size: 12px;
  color: rgba(15, 23, 42, 0.52);
  letter-spacing: 0.06em;
  font-weight: 800;
}

.metric-v {
  margin-top: 8px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: rgba(15, 23, 42, 0.88);
}

.metric-text {
  font-weight: 800;
  font-size: 13px;
  color: rgba(15, 23, 42, 0.74);
}

.gpu-grid {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    linear-gradient(120deg, rgba(43, 108, 255, 0.14), transparent 40%, rgba(34, 209, 238, 0.12)),
    repeating-linear-gradient(0deg, rgba(15, 23, 42, 0.06) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(90deg, rgba(15, 23, 42, 0.06) 0 1px, transparent 1px 22px);
  opacity: 0.3;
  mask-image: radial-gradient(900px 360px at 60% 20%, black 40%, transparent 74%);
  transition: opacity 260ms ease;
  pointer-events: none;
}

.gpu-card:hover .gpu-grid {
  opacity: 0.46;
}

.about-band {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 18px;
  align-items: stretch;
  padding: 22px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(43, 108, 255, 0.1);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.about-visual {
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(43, 108, 255, 0.1);
  overflow: hidden;
  position: relative;
}

.about-photo {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  object-position: center;
}

.dc-illus {
  width: 100%;
  height: 100%;
  min-height: 240px;
}

.about-text {
  padding: 8px 6px;
}

.about-body {
  margin-top: 14px;
  color: rgba(15, 23, 42, 0.72);
  line-height: 1.85;
  padding-bottom: 10px;
}

.follow {
  padding-top: 0;
}

.follow-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 18px 24px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(43, 108, 255, 0.1);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.follow-copy {
  min-width: 0;
  flex: 1 1 auto;
}

.follow-copy .section-title {
  margin-top: 0;
  font-size: 22px;
}

.follow-desc {
  margin-top: 8px;
  color: rgba(15, 23, 42, 0.68);
  line-height: 1.7;
}

.follow-grid {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.follow-item {
  width: 96px;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(43, 108, 255, 0.1);
}

.follow-name {
  font-size: 13px;
  font-weight: 900;
  color: rgba(15, 23, 42, 0.9);
  text-align: center;
}

.follow-qr,
.follow-empty {
  margin-top: 8px;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 14px;
  border: 1px solid rgba(43, 108, 255, 0.12);
  background: rgba(255, 255, 255, 0.88);
}

.follow-qr {
  object-fit: contain;
  padding: 6px;
}

.follow-empty {
  display: grid;
  place-items: center;
  padding: 10px;
  color: rgba(15, 23, 42, 0.46);
  font-weight: 700;
  font-size: 11px;
  text-align: center;
  line-height: 1.5;
}

.about-points {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(43, 108, 255, 0.14);
  background: rgba(43, 108, 255, 0.07);
  color: rgba(15, 23, 42, 0.76);
  letter-spacing: 0.02em;
  font-weight: 900;
  font-size: 13px;
}

.company-head {
  align-items: flex-start;
  padding-bottom: 18px;
}

.company-title {
  font-size: clamp(34px, 4.4vw, 60px);
  letter-spacing: 0.01em;
  line-height: 1.12;
  color: rgba(15, 23, 42, 0.96);
  font-weight: 900;
}

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 36px;
  align-items: start;
  margin-top: 16px;
}

.company-lead-p {
  margin: 0 0 20px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(15, 23, 42, 0.78);
  letter-spacing: 0.02em;
}

.company-lead-p:last-child {
  margin-bottom: 0;
}

.company-info {
  overflow: hidden;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 20px 50px -30px rgba(15, 23, 42, 0.25);
  padding: 0;
}

.company-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  padding: 22px 28px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  align-items: center;
}

.company-row-last {
  border-bottom: none;
  align-items: flex-start;
  padding-top: 24px;
  padding-bottom: 24px;
}

.company-th {
  font-size: 15px;
  font-weight: 800;
  color: rgba(15, 23, 42, 0.68);
  letter-spacing: 0.04em;
}

.company-td {
  font-size: 16px;
  line-height: 1.75;
  font-weight: 700;
  color: rgba(15, 23, 42, 0.92);
  letter-spacing: 0.02em;
}

.contact-head {
  align-items: flex-start;
  padding-bottom: 20px;
  margin-bottom: 28px;
}

.contact-title {
  font-size: clamp(32px, 4.2vw, 56px);
  letter-spacing: 0.01em;
  line-height: 1.12;
  color: rgba(15, 23, 42, 0.96);
  font-weight: 900;
}

.contact-sub {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(15, 23, 42, 0.68);
  letter-spacing: 0.02em;
}

.contact-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 28px;
  align-items: stretch;
}

.contact-info {
  position: relative;
  border-radius: 28px;
  padding: 36px 30px 30px;
  color: #f8fafc;
  background:
    radial-gradient(60% 60% at 92% 8%, rgba(129, 140, 248, 0.35), transparent 70%),
    radial-gradient(70% 60% at 8% 96%, rgba(56, 189, 248, 0.22), transparent 70%),
    linear-gradient(160deg, #0b1220 0%, #0f172a 55%, #131b2e 100%);
  box-shadow: 0 30px 70px -40px rgba(15, 23, 42, 0.7);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-height: 420px;
}

.contact-info-title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.04em;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.contact-info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.contact-info-item {
  display: grid;
  grid-template-columns: 40px 72px 1fr;
  align-items: center;
  gap: 10px;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(148, 163, 184, 0.12);
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.contact-info-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(226, 232, 240, 0.68);
  font-weight: 700;
  text-transform: none;
}

.contact-info-value {
  font-size: 15px;
  font-weight: 800;
  color: #f8fafc;
  letter-spacing: 0.03em;
  line-height: 1.6;
}

.contact-form {
  padding: 34px 34px 30px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 22px 60px -36px rgba(15, 23, 42, 0.22);
  display: grid;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-col,
.form-block {
  display: grid;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 800;
  color: rgba(15, 23, 42, 0.76);
  letter-spacing: 0.03em;
}

.form-input,
.form-textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(248, 250, 252, 0.8);
  padding: 14px 16px;
  font: inherit;
  letter-spacing: 0.02em;
  color: rgba(15, 23, 42, 0.92);
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
  box-sizing: border-box;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: rgba(43, 108, 255, 0.55);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(43, 108, 255, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.7;
}

.form-actions {
  margin-top: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 14px 26px;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  letter-spacing: 0.04em;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-dark {
  background: linear-gradient(180deg, #0f172a 0%, #020617 100%);
  color: #f8fafc;
  box-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.7);
}

.btn-dark:hover {
  box-shadow: 0 18px 36px -16px rgba(15, 23, 42, 0.8);
}

.btn-dark[disabled] {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.05);
  color: rgba(15, 23, 42, 0.78);
  padding: 10px 18px;
  font-size: 13px;
}

.btn-ghost:hover {
  background: rgba(15, 23, 42, 0.09);
}

.form-note {
  margin: 4px 0 0;
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(100, 116, 139, 0.92);
  letter-spacing: 0.02em;
}

.form-admin {
  margin-top: 8px;
  padding-top: 18px;
  border-top: 1px dashed rgba(148, 163, 184, 0.35);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
}

.form-status {
  font-size: 13px;
  color: rgba(15, 23, 42, 0.72);
  font-weight: 700;
}

.footer {
  background: #ffffff;
  padding: 0 0 40px;
  position: relative;
  z-index: 2;
}

.footer-sep {
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.75) 0%, rgba(59, 130, 246, 0.65) 55%, rgba(56, 189, 248, 0.55) 100%);
  opacity: 0.95;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 44px 0 8px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  width: 40px;
  height: 40px;
  display: inline-block;
  line-height: 0;
  filter: drop-shadow(0 6px 14px rgba(59, 130, 246, 0.18));
}

.footer-logo svg {
  display: block;
  width: 100%;
  height: 100%;
}

.footer-brand-text {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: rgba(15, 23, 42, 0.96);
}

.footer-copy {
  font-size: 14.5px;
  letter-spacing: 0.04em;
  color: rgba(71, 85, 105, 0.92);
  font-weight: 600;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 20;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: min(520px, calc(100vw - 44px));
  transform: translateX(104%);
  transition: transform 260ms ease;
  z-index: 21;
  background: rgba(255, 255, 255, 0.92);
  border-left: 1px solid rgba(43, 108, 255, 0.14);
  box-shadow: -20px 0 70px rgba(15, 23, 42, 0.18);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.drawer-open {
  overflow: hidden;
}

.menu-open {
  overflow: hidden;
}

.mnav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.26);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 18;
}

.mnav {
  position: fixed;
  left: 14px;
  right: 14px;
  top: calc(64px + env(safe-area-inset-top, 0px));
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: transform 220ms ease, opacity 220ms ease;
  z-index: 19;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(43, 108, 255, 0.14);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.14);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.menu-open .mnav-overlay {
  opacity: 1;
  pointer-events: auto;
}

.menu-open .mnav {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mnav-head {
  padding: 14px 18px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid rgba(43, 108, 255, 0.12);
}

.mnav-title {
  font-weight: 900;
  letter-spacing: 0.04em;
}

.mnav-body {
  padding: 14px 18px 18px;
  display: grid;
  gap: 10px;
}

.mnav-link {
  text-decoration: none;
  color: rgba(15, 23, 42, 0.78);
  font-weight: 900;
  letter-spacing: 0.02em;
  border: 1px solid rgba(43, 108, 255, 0.12);
  background: rgba(43, 108, 255, 0.06);
  border-radius: 16px;
  padding: 14px 14px;
}

.kefu-fab {
  position: fixed;
  right: 16px;
  top: 50%;
  bottom: auto;
  transform: translateY(-50%);
  z-index: 30;
}

.drawer-open .kefu-fab,
.menu-open .kefu-fab {
  opacity: 0;
  pointer-events: none;
}

.kefu-btn {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  border: 1px solid rgba(43, 108, 255, 0.14);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  display: grid;
  place-items: center;
  color: rgba(15, 23, 42, 0.74);
  transition: transform 220ms ease, border-color 220ms ease;
}

.kefu-btn:hover {
  border-color: rgba(34, 209, 238, 0.5);
  transform: translateY(-2px);
}

.kefu-pop {
  position: absolute;
  right: 62px;
  top: 50%;
  bottom: auto;
  width: 168px;
  padding: 12px 12px;
  border-radius: 18px;
  border: 1px solid rgba(43, 108, 255, 0.14);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(10px);
  transition: opacity 200ms ease, transform 200ms ease;
}

.kefu-fab:hover .kefu-pop,
.kefu-fab.open .kefu-pop {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
}

.kefu-pop-title {
  font-weight: 900;
  letter-spacing: 0.02em;
  color: rgba(15, 23, 42, 0.86);
}

.kefu-qr {
  margin-top: 10px;
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 14px;
  border: 1px solid rgba(43, 108, 255, 0.12);
}

.kefu-pop-tip {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(15, 23, 42, 0.55);
  letter-spacing: 0.06em;
  font-weight: 800;
  text-align: center;
}

.drawer-open .drawer-overlay {
  opacity: 1;
  pointer-events: auto;
}

.drawer-open .drawer {
  transform: translateX(0);
}

.drawer-head {
  padding: 18px 18px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid rgba(43, 108, 255, 0.12);
}

.drawer-title {
  font-weight: 900;
  letter-spacing: 0.04em;
}

.drawer-body {
  padding: 18px;
  overflow: auto;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(43, 108, 255, 0.14);
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color 220ms ease, transform 220ms ease;
  color: inherit;
}

.icon-btn:hover {
  border-color: rgba(43, 108, 255, 0.3);
  transform: translateY(-2px);
}

.icon-x {
  width: 16px;
  height: 16px;
  position: relative;
}

.icon-x::before,
.icon-x::after {
  content: "";
  position: absolute;
  inset: 7px 0 auto 0;
  height: 2px;
  background: rgba(15, 23, 42, 0.7);
  border-radius: 999px;
}

.icon-x::before {
  transform: rotate(45deg);
}

.icon-x::after {
  transform: rotate(-45deg);
}

.detail {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.detail-cover {
  border-radius: 18px;
  border: 1px solid rgba(43, 108, 255, 0.12);
  background: rgba(255, 255, 255, 0.7);
  overflow: hidden;
  height: 160px;
  display: grid;
  place-items: center;
  padding: 10px;
}

.detail-cover svg,
.detail-cover img {
  display: block;
  width: 100%;
  height: 100%;
}

.detail-cover img {
  object-fit: contain;
  object-position: center;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.kv {
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(43, 108, 255, 0.1);
  background: rgba(255, 255, 255, 0.75);
}

.kv-k {
  font-size: 12px;
  color: rgba(15, 23, 42, 0.55);
  letter-spacing: 0.06em;
  font-weight: 900;
}

.kv-v {
  margin-top: 8px;
  font-weight: 900;
  color: rgba(15, 23, 42, 0.86);
}

.detail-block {
  border: 1px solid rgba(43, 108, 255, 0.1);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 18px;
  padding: 14px;
}

.detail-h {
  font-weight: 900;
  letter-spacing: 0.02em;
}

.detail-p {
  margin-top: 10px;
  color: rgba(15, 23, 42, 0.7);
  line-height: 1.8;
}

.detail-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.detail-item {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(43, 108, 255, 0.08);
  background: rgba(43, 108, 255, 0.06);
  color: rgba(15, 23, 42, 0.74);
  font-weight: 700;
}

@media (max-width: 980px) {
  .hero {
    height: auto;
    min-height: 0;
    padding: 78px 0 60px;
    background-position: center;
    background-size: cover;
  }

  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 10px;
  }

  .topbar-nav {
    display: none;
  }

  .topbar-inner {
    justify-content: space-between;
  }

  .topbar-brand {
    min-width: 0;
  }

  .topbar-menu-btn {
    display: grid;
  }

  .topbar-brand-text {
    font-size: 20px;
  }

  .side-label-text {
    writing-mode: horizontal-tb;
    letter-spacing: 0.08em;
  }

  .side-label-line {
    height: 1px;
    width: 140px;
  }

  .side-label-line::after {
    animation-name: dataLineH;
  }

  @keyframes dataLineH {
    from {
      transform: translateX(-40%);
    }
    to {
      transform: translateX(40%);
    }
  }

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

  .model-card {
    grid-column: auto;
    min-height: 0;
  }

  .model-card:nth-child(4),
  .model-card:nth-child(5) {
    grid-column: auto;
  }

  .model-card-body {
    grid-template-columns: 120px minmax(0, 1fr);
  }

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

  .about-band {
    grid-template-columns: 1fr;
  }

  .follow-grid {
    width: 100%;
    justify-content: flex-start;
  }

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

  .company-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 20px;
  }

  .company-row-last {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .company-th {
    font-size: 13px;
  }

  .company-td {
    font-size: 15px;
  }

  .contact-info {
    min-height: 0;
    padding: 30px 24px 26px;
  }

  .contact-form {
    padding: 26px 22px 22px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 34px 0 12px;
  }

  .footer-brand-text {
    font-size: 21px;
  }
}

@media (max-width: 560px) {
  :root {
    --pad-section: 70px;
    --pad-card: 22px;
  }

  .section-title {
    font-size: 22px;
  }

  .section.about {
    padding-bottom: 16px;
  }

  .section.follow {
    padding-top: 0;
    padding-bottom: calc(var(--pad-section) + 220px);
  }

  .follow-band {
    display: grid;
    gap: 16px;
    padding: 18px;
  }

  .follow-copy .section-title {
    font-size: 20px;
  }

  .follow-grid {
    gap: 12px;
  }

  .follow-item {
    width: min(118px, calc(50% - 6px));
  }

  .about-band {
    padding-bottom: 18px;
  }

  .about-text {
    padding-bottom: 10px;
  }

  .about-body {
    padding-bottom: 12px;
  }

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

  .model-card-body {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .card-illus {
    width: 100%;
    height: 220px;
    padding: 12px 14px;
  }

  .card-illus.illus-bg {
    padding: 0;
  }

  .card-illus.illus-bg[data-illus="gpt"] {
    --illus-size: auto 134%;
    --illus-pos: 50% 50%;
    --illus-crop-top: 1.8%;
    --illus-crop-right: 8.6%;
    --illus-crop-bottom: 1.8%;
    --illus-crop-left: 8.6%;
  }

  .card-illus.illus-bg[data-illus="gemini"] {
    --illus-size: auto 140%;
    --illus-pos: 50% 50%;
    --illus-crop-top: 2.2%;
    --illus-crop-right: 5.8%;
    --illus-crop-bottom: 2.2%;
    --illus-crop-left: 5.8%;
  }

  .card-illus.illus-bg[data-illus="claude"] {
    --illus-size: auto 138%;
    --illus-crop-top: 1%;
    --illus-crop-right: 7.2%;
    --illus-crop-bottom: 1%;
    --illus-crop-left: 7.2%;
  }

  .card-illus.illus-bg[data-illus="glm"] {
    --illus-size: auto 110%;
    --illus-pos: 45% 50%;
  }

  .card-illus img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transform: none;
    clip-path: none;
  }

  .card-illus[data-illus="seedance"] img {
    transform: none;
    object-position: center;
  }

  .gpu-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .container {
    width: min(1180px, calc(100% - 28px));
  }

  .topbar {
    padding: 8px 0;
  }

  .topbar-logo {
    height: 38px;
    border-radius: 10px;
  }

  .topbar-brand-text {
    font-size: 18px;
  }

  .hero-subtitle {
    font-size: 14px;
    line-height: 1.6;
  }

  .kefu-btn {
    width: 48px;
    height: 48px;
    border-radius: 16px;
  }

  .kefu-fab {
    right: 12px;
  }

  .mnav {
    top: calc(60px + env(safe-area-inset-top, 0px));
    left: 12px;
    right: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}