/* ===== Design Tokens ===== */
:root {
  --bg-dark: #08080d;
  --bg-card: #12121a;
  --bg-light: #f4f2ee;
  --bg-white: #fafaf8;
  --text-dark: #1a1a22;
  --text-muted: #6b6b78;
  --text-light: rgba(255, 255, 255, 0.72);
  --accent: #00e5b0;
  --accent-dim: rgba(0, 229, 176, 0.15);
  --accent-glow: rgba(0, 229, 176, 0.35);
  --warm: #ff6b4a;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: rgba(26, 26, 34, 0.08);
  --font-display: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --wrap: 1180px;
  --header-h: 68px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 16px;
  --radius-sm: 10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dark);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: all 0.35s var(--ease);
}

.btn--glow {
  background: var(--accent);
  color: var(--bg-dark);
  box-shadow: 0 0 30px var(--accent-glow);
}

.btn--glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px var(--accent-glow);
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--full { width: 100%; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background 0.4s var(--ease), border-color 0.4s;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(8, 8, 13, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--border-dark);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: block;
  flex-shrink: 0;
}

.brand__img {
  display: block;
  object-fit: contain;
}

.brand__img--hero {
  width: 150px;
  height: 40px;
}

.brand__img--bar {
  display: none;
  width: 120px;
  height: 32px;
}

.site-header.is-scrolled .brand__img--hero { display: none; }
.site-header.is-scrolled .brand__img--bar { display: block; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav__link {
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  border-radius: 8px;
  transition: color 0.3s, background 0.3s;
}

.site-nav__link:hover,
.site-nav__link.is-active { color: #fff; }

.site-nav__link.is-active { background: rgba(255, 255, 255, 0.06); }

.site-nav__cta {
  margin-left: 8px;
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--bg-dark);
  background: var(--accent);
  border-radius: 999px;
  transition: box-shadow 0.3s, transform 0.3s;
}

.site-nav__cta:hover {
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}

.menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  position: relative;
  z-index: 1002;
  -webkit-tap-highlight-color: transparent;
}

.menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-btn.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-btn.is-open span:nth-child(2) { opacity: 0; }
.menu-btn.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.hero {
  position: relative;
  min-height: 100vh;
  background: var(--bg-dark);
  color: #fff;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 0 80px;
  overflow: hidden;
}

.hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(0, 229, 176, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(255, 107, 74, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.03) 0%, transparent 40%);
}

.hero__mesh::after {
  content: '';
  position: absolute;
  inset: 0;
  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: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 70%);
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.pill {
  display: inline-block;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 176, 0.25);
  border-radius: 999px;
  margin-bottom: 28px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero__line { display: block; }
.hero__line--accent {
  background: linear-gradient(135deg, var(--accent) 0%, #7afcd4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 16px;
  color: var(--text-light);
  max-width: 480px;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero__metrics {
  display: flex;
  gap: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--border-dark);
}

.hero__metric strong {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.hero__metric span {
  font-size: 14px;
  color: var(--accent);
  margin-left: 2px;
}

.hero__metric small {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 4px;
}

.hero__visual {
  position: relative;
  height: 480px;
}

.hero__frame {
  position: absolute;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-dark);
}

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

.hero__frame--main {
  top: 0;
  right: 0;
  width: 85%;
  height: 75%;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.hero__frame--sub {
  bottom: 0;
  left: 0;
  width: 45%;
  height: 40%;
  border: 2px solid var(--accent);
  box-shadow: 0 20px 60px rgba(0, 229, 176, 0.15);
}

.hero__badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(8, 8, 13, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 20px 28px;
  text-align: center;
}

.hero__badge-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.hero__badge-text {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.3);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

.block { padding: 100px 0; }
.block--light { background: var(--bg-light); }
.block--dark { background: var(--bg-dark); color: #fff; }
.block--compact { padding-bottom: 60px; }
.block--contact {
  background: var(--bg-dark);
  color: #fff;
  padding-bottom: 80px;
}

.block-head {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 48px;
}

.block-head--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.block-head--light .block-head__title { color: #fff; }
.block-head--light .block-head__en { color: var(--accent); }

.block-head__idx {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(26, 26, 34, 0.08);
  user-select: none;
}

.block-head--light .block-head__idx { color: rgba(255, 255, 255, 0.06); }

.block-head__en {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 6px;
}

.block-head__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.block-intro {
  max-width: 640px;
  color: var(--text-muted);
  margin: -20px 0 40px;
  font-size: 15px;
}

.block--dark .block-intro { color: var(--text-light); }
.block-intro--center { margin-left: auto; margin-right: auto; text-align: center; }

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about__media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}

.about__media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.about__tag {
  position: absolute;
  bottom: 20px;
  left: 20px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  background: var(--bg-dark);
  color: var(--accent);
  border-radius: var(--radius-sm);
}

.about__body .lead {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.6;
}

.about__body p {
  color: var(--text-muted);
  margin-bottom: 14px;
}

.about__points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 28px;
}

.about__points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
}

.about__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
}

.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(160px, auto);
  gap: 16px;
}

.bento__cell {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s var(--ease);
  overflow: hidden;
}

.bento__cell:hover {
  border-color: rgba(0, 229, 176, 0.3);
  transform: translateY(-3px);
}

.bento__cell--wide { grid-column: span 2; }

.bento__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 12px;
  margin-bottom: 18px;
}

.bento__icon img { width: 28px; height: 28px; object-fit: contain; }

.bento__cell h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.bento__cell p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.65;
}

.bento__cell--feature {
  grid-column: span 2;
  grid-row: span 2;
  padding: 0;
  display: flex;
  align-items: flex-end;
}

.bento__feature-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.bento__feature-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 8, 13, 0.92) 0%, rgba(8, 8, 13, 0.3) 60%);
}

.bento__feature-content {
  position: relative;
  z-index: 2;
  padding: 28px;
}

.bento__feature-content h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.bento__cell--stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 229, 176, 0.06) 100%);
}

.bento__stat-val {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.bento__stat-unit {
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 8px;
}

.bento__cell--stat p { font-size: 13px; }

.showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.showcase__item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3/4;
  display: block;
}

.showcase__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.showcase__item:hover img { transform: scale(1.06); }

.showcase__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 8, 13, 0.9) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: #fff;
  transition: background 0.4s;
}

.showcase__item:hover .showcase__overlay {
  background: linear-gradient(to top, rgba(8, 8, 13, 0.95) 0%, rgba(0, 229, 176, 0.15) 100%);
}

.showcase__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.12);
  line-height: 1;
  margin-bottom: 8px;
}

.showcase__overlay h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.showcase__overlay p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

.tabs {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.tabs__nav {
  display: flex;
  border-bottom: 1px solid var(--border-light);
}

.tabs__btn {
  flex: 1;
  padding: 18px 20px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.3s, background 0.3s;
  position: relative;
}

.tabs__btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}

.tabs__btn.is-active {
  color: var(--text-dark);
  background: rgba(0, 229, 176, 0.04);
}

.tabs__btn.is-active::after { transform: scaleX(1); }

.tabs__panels { padding: 32px 36px; }

.tabs__panel {
  display: none;
  animation: tabIn 0.4s var(--ease);
}

.tabs__panel.is-active { display: block; }

.tabs__panel h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.tabs__panel p {
  color: var(--text-muted);
  font-size: 15px;
}

@keyframes tabIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.history-track {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.history-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}

.history-card:hover {
  border-color: rgba(0, 229, 176, 0.25);
  transform: translateY(-4px);
}

.history-card__img { height: 180px; overflow: hidden; }

.history-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.history-card:hover .history-card__img img { transform: scale(1.05); }

.history-card__body { padding: 24px 28px 28px; }

.history-card__body time {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 10px;
}

.history-card__body h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.history-card__body p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.7;
}

.marquee {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 40s linear infinite;
}

.marquee__track:hover { animation-play-state: paused; }

.marquee__group {
  display: flex;
  gap: 32px;
  padding: 0 16px;
}

.marquee__group img {
  width: 140px;
  height: 56px;
  padding: 10px 14px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  box-sizing: border-box;
  filter: grayscale(40%) opacity(0.75);
  transition: filter 0.3s, border-color 0.3s;
}

.marquee__group img:hover {
  filter: grayscale(0%) opacity(1);
  border-color: rgba(0, 229, 176, 0.35);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.contact__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.field { margin-bottom: 20px; }

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 8px;
}

.field input,
.field textarea {
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  font-family: inherit;
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  transition: border-color 0.3s, background 0.3s;
}

.field input::placeholder,
.field textarea::placeholder { color: rgba(255, 255, 255, 0.25); }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: rgba(0, 229, 176, 0.5);
  background: rgba(0, 229, 176, 0.04);
}

.field textarea { resize: vertical; min-height: 120px; }

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

.info-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  transition: border-color 0.3s;
}

.info-card:hover { border-color: rgba(0, 229, 176, 0.25); }

.info-card h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}

.info-card a {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  transition: color 0.3s;
}

.info-card a:hover { color: var(--accent); }

.info-card p {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 6px;
}

.site-footer {
  background: #050508;
  color: rgba(255, 255, 255, 0.55);
  padding-top: 56px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.site-footer__brand img { margin-bottom: 16px; opacity: 0.85; }
.site-footer__brand p { font-size: 13px; line-height: 1.85; }

.site-footer__col h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
}

.site-footer__col ul li {
  font-size: 13px;
  margin-bottom: 12px;
  line-height: 1.65;
}

.site-footer__col time {
  display: block;
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 2px;
}

.site-footer__col p { font-size: 13px; line-height: 1.85; }

.site-footer__bar {
  border-top: 1px solid var(--border-dark);
  padding: 22px 0;
  text-align: center;
}

.site-footer__bar p {
  font-size: 12px;
  margin-bottom: 4px;
}

.site-footer__bar a {
  color: rgba(255, 255, 255, 0.35);
  transition: color 0.3s;
}

.site-footer__bar a:hover { color: var(--accent); }

.to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--bg-dark);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  z-index: 10001;
  box-shadow: 0 4px 20px var(--accent-glow);
  text-decoration: none;
}

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

.to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 28px var(--accent-glow);
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; gap: 48px; }
  .hero__visual { height: 360px; max-width: 520px; margin: 0 auto; }
  .about { grid-template-columns: 1fr; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento__cell--wide,
  .bento__cell--feature { grid-column: span 2; }
  .bento__cell--feature { grid-row: span 1; min-height: 280px; }
  .showcase { grid-template-columns: 1fr 1fr; }
  .showcase__item:last-child { grid-column: span 2; aspect-ratio: 2/1; }
  .history-track { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 1001;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 28px 28px;
    background: rgba(8, 8, 13, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-dark);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.4s var(--ease), opacity 0.4s, visibility 0.4s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav__link { padding: 12px 0; font-size: 15px; }
  .site-nav__cta { margin: 12px 0 0; text-align: center; }
  .menu-btn { display: flex; }

  .hero { min-height: auto; padding-bottom: 60px; }
  .hero__metrics { flex-wrap: wrap; gap: 24px; }
  .hero__scroll { display: none; }

  .block { padding: 72px 0; }
  .block-head__idx { font-size: 2.5rem; }

  .about__points { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .bento__cell--wide,
  .bento__cell--feature,
  .bento__cell--stat { grid-column: span 1; }

  .showcase { grid-template-columns: 1fr; }
  .showcase__item:last-child { grid-column: span 1; aspect-ratio: 3/4; }

  .tabs__nav { flex-direction: column; }
  .tabs__panels { padding: 24px; }

  .site-footer__grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
}