:root {
  --bg: #f3f4f6;
  --bg-deep: #e8eaee;
  --ink: #0b1220;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: rgba(11, 18, 32, 0.1);
  --panel: #ffffff;
  --accent: #1e3a5f;
  --accent-deep: #0f2744;
  --copper: #475569;
  --glow: rgba(11, 18, 32, 0.08);
  --radius: 10px;
  --font-display: "Noto Serif SC", "Songti SC", "Noto Sans SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", sans-serif;
  --font-num: "DM Sans", "Noto Sans SC", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  background: #f3f4f6;
  min-height: 100vh;
  overflow-x: hidden;
}

.page-glow {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(17, 24, 39, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.028) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 55%);
  z-index: 0;
  opacity: 0.7;
}

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

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

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 18px clamp(24px, 5vw, 72px);
  backdrop-filter: blur(18px) saturate(1.2);
  background: rgba(12, 28, 48, 0.94);
  border-bottom: 1px solid rgba(148, 186, 224, 0.18);
  box-shadow: 0 8px 28px rgba(8, 18, 32, 0.18);
  color: #f4f8fc;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.site-header .brand,
.site-header .nav {
  color: #f4f8fc;
}

.site-header .brand-mark {
  background: #7eb6e8;
}

.site-header .nav a::after {
  background: #7eb6e8;
}

.site-header .nav-toggle {
  border-color: rgba(148, 186, 224, 0.4);
  background: rgba(126, 182, 232, 0.1);
}

.site-header .nav-toggle span {
  background: #f4f8fc;
}

.site-header.is-top {
  background: rgba(12, 28, 48, 0.72);
  border-bottom-color: rgba(148, 186, 224, 0.22);
  box-shadow: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.12em;
}

.brand-mark {
  width: 10px;
  height: 10px;
  border-radius: 1px;
  background: var(--accent);
  box-shadow: none;
  flex-shrink: 0;
}

.brand-tag {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  margin-left: 6px;
  padding-left: 14px;
  border-left: 1px solid rgba(148, 186, 224, 0.35);
  font-family: var(--font-body);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.28;
  color: rgba(244, 248, 252, 0.88);
  white-space: nowrap;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 22px;
  margin-left: auto;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.section-kicker {
  margin: 0 0 10px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: none;
  color: var(--accent-deep);
}

.section-head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  color: var(--ink);
  position: relative;
  display: inline-block;
}

.section-head h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 2px;
  margin: 18px auto 0;
  border-radius: 0;
  background: var(--accent);
}

.section-lead {
  margin: 0 0 8px !important;
  font-family: var(--font-body);
  font-size: 1.02rem !important;
  font-weight: 500;
  line-height: 1.65;
  color: var(--muted) !important;
}

.nav a {
  position: relative;
  padding: 4px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transition: right 0.35s var(--ease);
}

.nav a:hover::after,
.nav a:focus-visible::after {
  right: 0;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.6);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: clamp(88px, 12vh, 140px) clamp(24px, 5vw, 72px) clamp(72px, 10vh, 120px);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  width: 100%;
  height: 120%;
  object-fit: cover;
  object-position: center center;
  transform: translateY(-11%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 42%, rgba(8, 12, 22, 0.18), rgba(8, 12, 22, 0.72) 72%),
    linear-gradient(180deg, rgba(8, 12, 22, 0.55) 0%, rgba(8, 12, 22, 0.42) 38%, rgba(8, 12, 22, 0.78) 78%, #0b1220 100%);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .hero-video {
    display: none;
  }

  .hero-overlay {
    background: linear-gradient(180deg, #0b1220 0%, #1a2332 55%, #0b1220 100%);
  }
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 920px;
  width: 100%;
  text-align: center;
  animation: rise 1.1s var(--ease) both;
}

.brand-hero {
  margin: 0 0 28px;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.55rem);
  font-weight: 700;
  letter-spacing: 0.36em;
  text-indent: 0.36em;
  line-height: 1;
  color: rgba(255, 255, 255, 0.92);
}

.hero h1 {
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 14px 40px rgba(0, 0, 0, 0.4);
}

.hero-title-main {
  display: block;
  font-size: clamp(2.35rem, 6vw, 4.4rem);
  letter-spacing: 0.16em;
  line-height: 1.15;
  white-space: nowrap;
}

.hero-title-sub {
  display: block;
  font-size: clamp(2.1rem, 5.2vw, 3.8rem);
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  line-height: 1.15;
  white-space: nowrap;
}

.hero-lead {
  margin: 0 auto 40px;
  max-width: 28em;
  color: rgba(255, 255, 255, 0.62);
  font-size: clamp(0.95rem, 1.35vw, 1.08rem);
  letter-spacing: 0.06em;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.hero-stats,
.hero-kicker,
.hero-sub {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  min-width: 168px;
  padding: 0 28px;
  border-radius: 2px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.btn:hover {
  transform: none;
}

.btn-primary {
  background: #111827;
  color: #fff;
  box-shadow: none;
}

.btn-primary::after {
  content: "→";
  font-size: 1.05rem;
  line-height: 1;
}

.btn-primary:hover {
  background: #1f2937;
  box-shadow: none;
}

.btn-ghost {
  background: transparent;
  border-color: rgba(17, 24, 39, 0.28);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--ink);
  background: rgba(17, 24, 39, 0.04);
}

.hero .btn-primary {
  background: #fff;
  color: var(--ink);
  min-width: 188px;
  min-height: 56px;
}

.hero .btn-primary:hover {
  background: rgba(255, 255, 255, 0.92);
}

.hero .btn-ghost {
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
  min-width: 188px;
  min-height: 56px;
}

.hero .btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

/* ========== Sections ========== */
.section {
  padding: clamp(64px, 9vw, 112px) clamp(24px, 5vw, 72px);
  scroll-margin-top: 88px;
}

.hero {
  scroll-margin-top: 0;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 40px;
  text-align: center;
}

.section-head--left {
  margin: 0;
  text-align: left;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.scene-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.scene-block {
  position: relative;
  min-height: 320px;
  padding: 28px 26px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.5);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #f5faf7;
  box-shadow: 0 20px 50px rgba(14, 24, 36, 0.1);
  transform: translateY(24px);
  opacity: 0;
  transition: transform 0.7s var(--ease), opacity 0.7s var(--ease);
}

.scene-block.is-in {
  transform: none;
  opacity: 1;
}

.scene-block::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
}

.scene-block--gym::before {
  background:
    linear-gradient(180deg, rgba(10, 18, 32, 0.15), rgba(10, 18, 32, 0.78)),
    linear-gradient(145deg, #1a3358, #1f3a5f 55%, #9bb4d4);
}

.scene-block--office::before {
  background:
    linear-gradient(180deg, rgba(12, 20, 32, 0.12), rgba(12, 20, 32, 0.8)),
    linear-gradient(160deg, #243448, #4d6480 50%, #c5d0d8);
}

.scene-block--hotel::before {
  background:
    linear-gradient(180deg, rgba(12, 24, 36, 0.12), rgba(12, 24, 36, 0.78)),
    linear-gradient(150deg, #1c3d52, #64748b 48%, #c2e4eb);
}

.scene-block h3,
.scene-block p {
  position: relative;
  z-index: 1;
}

.scene-block h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.45rem;
}

.scene-block p {
  margin: 0;
  color: rgba(245, 250, 247, 0.86);
  font-size: 0.98rem;
}

/* Features — editorial product capabilities */
.features {
  background: #f7f8fa;
  color: var(--ink);
}

.features .section-head h2 {
  color: var(--ink);
}

.features .section-head h2::after {
  background: var(--accent);
}

.features .section-lead {
  color: var(--ink-soft) !important;
}

.features .section-head p {
  color: var(--muted);
}

.feature-rows {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  gap: 0;
}

.feature-row {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding: clamp(40px, 6vw, 72px) 0;
  border-radius: 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(15, 28, 48, 0.1);
  box-shadow: none;
  transform: translateY(24px);
  opacity: 0;
  transition: transform 0.65s var(--ease), opacity 0.65s var(--ease);
  overflow: visible;
}

.feature-row:last-child {
  border-bottom: none;
}

.feature-row.is-in {
  transform: none;
  opacity: 1;
}

.feature-row.is-in:hover {
  box-shadow: none;
  border-color: rgba(15, 28, 48, 0.1);
  background: transparent;
}

.feature-row-head {
  grid-column: 1 / -1;
  text-align: left;
  margin-bottom: 8px;
  max-width: 42em;
}

.feature-index {
  margin: 0 0 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: none;
  color: #3d6f9c;
}

.feature-row-head h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.8vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.feature-row-head p:not(.feature-index) {
  margin: 0;
  max-width: 40em;
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--muted);
}

.feature-row:nth-child(even) .feature-visual {
  order: 2;
}

.feature-row:nth-child(even) .feature-aside {
  order: 1;
}

.feature-row:nth-child(even) .feature-row-head {
  order: 0;
}

.feature-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 560px;
}

.feature-visual::before {
  display: none;
}

.phone-frame {
  position: relative;
  z-index: 1;
  width: min(100%, 220px);
  aspect-ratio: 9 / 19.5;
  border-radius: 32px;
  overflow: hidden;
  background: #111;
  border: 3px solid #1a2332;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12) inset,
    0 22px 48px rgba(15, 28, 48, 0.2);
  transition: transform 0.45s var(--ease);
}

.feature-row.is-in .phone-frame {
  animation: phoneRise 0.7s var(--ease) both;
}

@keyframes phoneRise {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.feature-row--phones {
  grid-template-columns: 1fr;
  gap: 28px;
}

.feature-row--styles {
  grid-template-columns: 1fr;
  gap: 28px;
}

.feature-styles-visual {
  border-radius: 12px;
  overflow: hidden;
  background: #eef4fb;
  border: 1px solid rgba(15, 28, 48, 0.08);
}

.feature-styles-visual img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-row--styles .feature-aside,
.feature-row--phones .feature-aside {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0 24px;
}

.feature-row--styles .feature-aside-card,
.feature-row--phones .feature-aside-card {
  border-top: none;
  border-right: 1px solid rgba(15, 28, 48, 0.1);
  padding: 0 16px 0 0;
}

.feature-row--styles .feature-aside-card:last-child,
.feature-row--phones .feature-aside-card:last-child {
  border-right: none;
  padding-right: 0;
}

.feature-phone-rail {
  display: flex;
  justify-content: center;
  gap: 18px;
  overflow-x: auto;
  padding: 8px 4px 18px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.feature-phone-rail::-webkit-scrollbar {
  height: 6px;
}

.feature-phone-rail::-webkit-scrollbar-thumb {
  background: rgba(15, 28, 48, 0.18);
  border-radius: 999px;
}

.phone-card {
  margin: 0;
  flex: 0 0 auto;
  width: 148px;
  scroll-snap-align: start;
  text-align: center;
}

.phone-card .phone-frame {
  width: 100%;
  /* match real phone screenshot 472x1024 */
  aspect-ratio: 472 / 1024;
  border-radius: 26px;
  border: 2px solid #1a2332;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12) inset,
    0 18px 40px rgba(15, 28, 48, 0.22);
  background: #0b0f16;
}

.phone-card .phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  background: #f5f5f5;
  display: block;
}

.phone-card figcaption {
  margin-top: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

@media (max-width: 720px) {
  .phone-card {
    width: 132px;
  }
}

.feature-row--wide {
  grid-template-columns: 1.35fr 0.65fr;
}

.feature-row--wide .feature-visual {
  min-height: 0;
  justify-content: stretch;
}

.feature-row--wide .phone-frame--wide {
  width: 100%;
  max-width: none;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  border: 1px solid rgba(15, 28, 48, 0.1);
  box-shadow: 0 20px 48px rgba(15, 28, 48, 0.1);
  background: #fff;
}

.feature-row--wide .phone-frame--wide img {
  object-fit: contain;
  object-position: center top;
  background: #fff;
  image-rendering: -webkit-optimize-contrast;
}

.feature-row--shot {
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: stretch;
}

.feature-row--shot .feature-row-head {
  margin-bottom: 0;
}

.feature-row--shot .feature-visual {
  min-height: 0;
  justify-content: stretch;
}

.feature-row--shot .phone-frame--wide {
  width: 100%;
  max-width: none;
  aspect-ratio: 16 / 10;
  min-height: 0;
  height: auto;
  border-radius: 12px;
  border: 1px solid rgba(15, 28, 48, 0.1);
  box-shadow: 0 20px 48px rgba(15, 28, 48, 0.1);
  background: #fff;
}

.feature-row--shot .phone-frame--wide img {
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: min(70vh, 720px);
  object-fit: contain;
  object-position: center top;
  background: #fff;
  image-rendering: -webkit-optimize-contrast;
}

.feature-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 28px;
}

.feature-points li {
  display: grid;
  gap: 8px;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid rgba(15, 28, 48, 0.08);
  border-radius: 10px;
}

.feature-points strong {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.feature-points span {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--muted);
}

.feature-row--text {
  grid-template-columns: 1fr;
  gap: 28px;
}

.feature-row--text .feature-row-head {
  max-width: 46em;
}

.feature-text-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 32px;
}

.feature-text-grid > div {
  padding: 8px 0 4px;
  border-top: 1px solid rgba(15, 28, 48, 0.1);
}

.feature-text-grid h4 {
  margin: 14px 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.feature-text-grid p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--muted);
}

.phone-frame--wide {
  width: min(100%, 560px);
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  border-width: 1px;
}

.feature-aside {
  display: grid;
  gap: 0;
  align-content: start;
}

.feature-aside-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-items: start;
  padding: 18px 0;
  border-radius: 0;
  background: transparent;
  border: none;
  border-top: 1px solid rgba(15, 28, 48, 0.1);
  box-shadow: none;
  transition: opacity 0.2s;
  opacity: 0;
  transform: translateY(12px);
}

.feature-aside-card:first-child {
  border-top: none;
  padding-top: 0;
}

.feature-row.is-in .feature-aside-card {
  animation: asideIn 0.55s var(--ease) both;
}

.feature-row.is-in .feature-aside-card:nth-child(1) { animation-delay: 0.06s; }
.feature-row.is-in .feature-aside-card:nth-child(2) { animation-delay: 0.12s; }
.feature-row.is-in .feature-aside-card:nth-child(3) { animation-delay: 0.18s; }
.feature-row.is-in .feature-aside-card:nth-child(4) { animation-delay: 0.24s; }

@keyframes asideIn {
  to {
    opacity: 1;
    transform: none;
  }
}

.feature-aside-card:hover {
  border-color: rgba(15, 28, 48, 0.1);
  border-left-color: transparent;
  background: transparent;
  box-shadow: none;
  transform: none;
}

.feature-aside-icon {
  display: none;
}

.feature-aside-text h3,
.feature-aside-text h4 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.feature-aside-text p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.growth-block {
  max-width: 1100px;
  margin: clamp(28px, 4vw, 48px) auto 0;
  padding-top: clamp(36px, 5vw, 56px);
  border-top: 1px solid rgba(15, 28, 48, 0.1);
}

.saas-block {
  margin-top: clamp(28px, 4vw, 40px);
}

.growth-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(15, 28, 48, 0.1);
  border: 1px solid rgba(15, 28, 48, 0.1);
}

.growth-card {
  padding: 28px 24px 26px;
  border-radius: 0;
  background: #fff;
  border: none;
  box-shadow: none;
  text-align: left;
  transform: translateY(18px);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease), background 0.2s;
}

.growth-card.is-in {
  transform: none;
  opacity: 1;
}

.growth-card:hover {
  border-color: transparent;
  background: #f3f6f9;
  box-shadow: none;
}

.growth-card.is-in:hover {
  transform: none;
}

.growth-icon {
  display: none;
}

.growth-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.growth-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* Solutions cases */
.solutions {
  padding-inline: clamp(12px, 2vw, 28px);
}

.industry-cloud {
  margin: 0 auto 24px;
  padding: 0;
  max-width: 1100px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 10px;
}

.industry-btn {
  appearance: none;
  cursor: pointer;
  font: inherit;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: none;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.industry-btn:hover {
  border-color: rgba(17, 24, 39, 0.28);
  color: var(--ink);
  transform: none;
}

.industry-btn.is-on {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
  font-weight: 600;
  box-shadow: none;
}

.industry-btn--accent:not(.is-on) {
  color: var(--ink);
  border-color: rgba(17, 24, 39, 0.2);
  background: #fff;
  font-weight: 600;
}

.case-stage {
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  padding: 0;
}

.case-stage .case-card[hidden] {
  display: none !important;
}

.case-stage .case-card.is-on {
  opacity: 1;
  transform: none;
  animation: caseFade 0.35s var(--ease);
}

@keyframes caseFade {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.case-card {
  border-radius: 8px;
  overflow: hidden;
  background: #0e1824;
  border: 1px solid rgba(17, 24, 39, 0.14);
  box-shadow: 0 22px 48px rgba(14, 24, 36, 0.14);
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease), box-shadow 0.3s;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.case-card.is-in {
  transform: none;
  opacity: 1;
}

.case-card:hover {
  box-shadow: 0 28px 56px rgba(17, 24, 39, 0.18);
}

.case-card.is-in:hover {
  transform: translateY(-4px);
}

.case-card img {
  width: 100%;
  height: auto;
  display: block;
  background: #0e1824;
  transition: transform 0.5s var(--ease);
}

.case-card:hover img {
  transform: scale(1.02);
}

.case-card-body {
  padding: 18px 18px 22px;
  background: linear-gradient(180deg, rgba(14, 24, 36, 0.88), #0b1420);
  color: #f2f6fb;
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  flex: 1;
}

.case-card--text {
  background:
    radial-gradient(ellipse at 30% 20%, rgba(17, 24, 39, 0.35), transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(75, 85, 99, 0.22), transparent 50%),
    linear-gradient(160deg, #122033 0%, #0b1420 100%);
  min-height: min(52vw, 420px);
  justify-content: flex-end;
}

.case-card--text .case-card-body {
  border-top: none;
  background: transparent;
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.case-card-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.4vw, 1.35rem);
}

.case-card-body h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(17, 24, 39, 0.7);
  vertical-align: middle;
}

.case-card-body p {
  margin: 0;
  color: rgba(220, 230, 240, 0.78);
  font-size: 0.92rem;
  line-height: 1.55;
}

.partners {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.08));
  border-block: 1px solid var(--line);
}

.partner-types {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.partner-type {
  position: relative;
  padding: 16px 12px;
  border-radius: 6px;
  background: #fff;
  border: 1px solid var(--line);
  text-align: center;
  overflow: hidden;
  transform: translateY(16px);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease), border-color 0.2s;
}

.partner-type::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.25s;
}

.partner-type.is-in {
  transform: none;
  opacity: 1;
}

.partner-type:hover {
  border-color: rgba(17, 24, 39, 0.4);
  box-shadow: 0 14px 32px rgba(17, 24, 39, 0.12);
}

.partner-type.is-in:hover {
  transform: translateY(-3px);
}

.partner-type:hover::before {
  opacity: 1;
}

.partner-type h3 {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink);
}

.showcase-block {
  max-width: 1100px;
  margin: 0 auto;
}

.showcase-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.showcase-item {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0e1824;
  transform: translateY(18px);
  opacity: 0;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease);
}

.showcase-item.is-in {
  transform: none;
  opacity: 1;
}

.showcase-item img {
  width: 100%;
  height: min(42vw, 280px);
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}

.showcase-item:hover img {
  transform: scale(1.04);
}

.showcase-item figcaption {
  padding: 12px 16px 14px;
  font-size: 0.9rem;
  color: rgba(232, 240, 248, 0.85);
  background: linear-gradient(180deg, transparent, rgba(8, 16, 28, 0.92));
  margin-top: -44px;
  position: relative;
}

/* Hardware */
.hardware {
  background:
    radial-gradient(900px 420px at 15% 0%, rgba(17, 24, 39, 0.2), transparent 55%),
    radial-gradient(700px 360px at 90% 80%, rgba(75, 85, 99, 0.12), transparent 50%),
    linear-gradient(180deg, #0d1826 0%, #0b1420 100%);
  color: #f2f6fb;
  border-block: none;
  padding-block: clamp(72px, 10vw, 110px);
  position: relative;
}

.hardware::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 85%);
  pointer-events: none;
}

.hardware .section-head h2,
.hardware .section-lead {
  color: #f2f6fb !important;
}

.hardware .section-head p {
  color: rgba(200, 214, 230, 0.7);
}

.hw-sku {
  list-style: none;
  max-width: 1100px;
  margin: 0 auto 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.hw-sku li {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.86rem;
  font-weight: 500;
  color: rgba(210, 226, 245, 0.88);
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.hw-capability {
  max-width: 1100px;
  margin: 0 auto 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
  z-index: 1;
}

.hw-cap-card {
  padding: 22px 18px 20px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(148, 163, 184, 0.2);
  transform: translateY(16px);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease), border-color 0.25s, background 0.25s;
}

.hw-cap-card.is-in {
  transform: none;
  opacity: 1;
}

.hw-cap-card:hover {
  border-color: rgba(148, 163, 184, 0.45);
  background: rgba(148, 163, 184, 0.08);
}

.hw-cap-num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-num);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  color: #7eb8ff;
}

.hw-cap-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: #f2f6fb;
}

.hw-cap-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: rgba(200, 214, 230, 0.7);
}

.hw-showcase {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hw-scene-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0 auto 28px;
  padding: 4px;
  width: fit-content;
  max-width: min(100%, 920px);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.18);
  position: relative;
  z-index: 1;
}

.hw-tab {
  padding: 10px 18px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: rgba(190, 208, 228, 0.72);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.hw-tab:hover {
  color: #f2f6fb;
  background: rgba(255, 255, 255, 0.05);
}

.hw-tab.is-on {
  color: #f2f6fb;
  background: rgba(148, 163, 184, 0.18);
  border-color: rgba(148, 163, 184, 0.35);
  box-shadow: none;
}

.hw-scene[hidden] {
  display: none;
}

.hw-boards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.hw-board {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #101a28;
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  transform: translateY(18px);
  opacity: 0;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease), box-shadow 0.3s;
}

.hw-board.is-in {
  transform: none;
  opacity: 1;
}

.hw-board:hover {
  box-shadow: 0 28px 70px rgba(17, 24, 39, 0.25);
}

.hw-board.is-in:hover {
  transform: translateY(-4px);
}

.hw-board-media {
  overflow: hidden;
  background: #dceee3;
  aspect-ratio: 4 / 5;
}

.hw-board-media img {
  width: 100%;
  height: 118%;
  margin-top: -12%;
  object-fit: cover;
  object-position: center 8%;
  display: block;
  transition: transform 0.5s var(--ease);
}

.hw-board:hover .hw-board-media img {
  transform: scale(1.03);
}

.hw-board figcaption {
  padding: 14px 16px 16px;
  background: #121c2a;
}

.hw-board figcaption strong {
  display: block;
  margin: 0 0 4px;
  font-size: 0.98rem;
  color: #f2f6fb;
}

.hw-board figcaption span {
  font-size: 0.84rem;
  line-height: 1.5;
  color: rgba(200, 214, 230, 0.68);
}

.hw-points {
  list-style: none;
  margin: 8px auto 0;
  padding: 0;
  max-width: 1100px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.hw-points li {
  padding: 18px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 6px;
  transform: translateY(14px);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease);
}

.hw-points li.is-in {
  transform: none;
  opacity: 1;
}

.hw-points strong {
  font-size: 1rem;
  color: #f2f6fb;
}

.hw-points span {
  font-size: 0.88rem;
  color: rgba(200, 214, 230, 0.65);
}

/* Closing: delivery + contact (tech dark band) */
.closing {
  --close-bg: #0b1420;
  --close-ink: #f2f6fb;
  --close-muted: rgba(200, 214, 230, 0.62);
  --close-line: rgba(255, 255, 255, 0.1);
  --close-accent: #e5e7eb;
  --close-accent-deep: #ffffff;
  background:
    radial-gradient(900px 420px at 12% 0%, rgba(17, 24, 39, 0.2), transparent 55%),
    radial-gradient(700px 360px at 88% 100%, rgba(75, 85, 99, 0.1), transparent 50%),
    var(--close-bg);
  color: var(--close-ink);
  border-top: none;
  padding-block: clamp(40px, 6vw, 64px);
}

.closing-layout {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.closing-process h2,
.closing-contact > h2 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.8vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--close-ink);
}

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

.process-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
  transform: translateY(16px);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease);
}

.process-list li.is-in {
  transform: none;
  opacity: 1;
}

.process-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(148, 163, 184, 0.55);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: #9ec9ff;
  background: rgba(17, 24, 39, 0.12);
  flex-shrink: 0;
}

.process-list h3 {
  margin: 2px 0 6px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--close-ink);
}

.process-list p {
  margin: 0;
  color: var(--close-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.contact-card {
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 6px;
  padding: 28px 24px 24px;
  background:
    linear-gradient(160deg, rgba(148, 163, 184, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.contact-info {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 22px;
}

.contact-info li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--close-accent);
  background: rgba(17, 24, 39, 0.14);
  line-height: 0;
}

.contact-icon svg {
  width: 20px;
  height: 20px;
  display: block;
  flex-shrink: 0;
}

.contact-info li > div span {
  display: block;
  font-size: 0.82rem;
  color: var(--close-muted);
  margin-bottom: 4px;
}

.contact-info strong {
  display: block;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--close-ink);
  line-height: 1.45;
}

.consult-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 48px;
  border-radius: 4px;
  background: #fff;
  color: #111827;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: none;
  transition: background 0.2s, color 0.2s;
}

.consult-btn:hover {
  filter: none;
  transform: none;
  background: #e5e7eb;
}

.consult-btn.is-tip {
  background: #e5e7eb;
  color: #111827;
}

.site-footer {
  padding: 40px clamp(20px, 4vw, 56px) 56px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
}

.site-footer--dark {
  background: #081018;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(200, 214, 230, 0.55);
}

.site-footer--dark .footer-brand {
  color: #f2f6fb;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--ink);
  margin-bottom: 8px;
}

.footer-copy {
  margin-top: 18px;
  font-size: 0.85rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
  to {
    transform: translate3d(-18px, 22px, 0) rotate(8deg);
  }
}

@media (max-width: 1100px) and (min-width: 961px) {
  .partner-types {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1100px) {
  .nav {
    gap: 6px 12px;
    font-size: 0.82rem;
  }
}

@media (max-width: 960px) {
  .partner-types,
  .showcase-grid,
  .feature-row,
  .feature-row--wide,
  .feature-row--shot,
  .growth-grid,
  .hw-boards,
  .hw-capability,
  .hw-points,
  .closing-layout {
    grid-template-columns: 1fr;
  }

  .feature-row:nth-child(even) .feature-visual,
  .feature-row:nth-child(even) .feature-aside {
    order: initial;
  }

  .feature-row {
    padding: clamp(32px, 6vw, 48px) 0;
    border-radius: 0;
  }

  .phone-frame {
    width: min(100%, 260px);
  }

  .feature-visual {
    min-height: 480px;
  }

  .phone-frame--wide {
    width: min(100%, 100%);
  }

  .feature-row--shot .phone-frame--wide,
  .feature-row--shot .phone-frame--wide img {
    min-height: 0;
    max-height: none;
  }

  .feature-points {
    grid-template-columns: 1fr;
  }

  .feature-text-grid {
    grid-template-columns: 1fr;
  }

  .feature-row--phones .feature-aside,
  .feature-row--styles .feature-aside {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .feature-row--phones .feature-aside-card,
  .feature-row--styles .feature-aside-card {
    border-right: none;
    border-top: 1px solid rgba(15, 28, 48, 0.1);
    padding: 14px 0 0;
  }

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

  .case-card img {
    min-height: 0;
    aspect-ratio: auto;
  }

  .case-card--text {
    min-height: 280px;
  }

  .hw-boards--4 {
    grid-template-columns: 1fr;
  }

  .hw-points {
    grid-template-columns: 1fr 1fr;
  }

  .partner-types {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hw-capability {
    grid-template-columns: 1fr 1fr;
  }

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

  .hero {
    min-height: 100svh;
    padding-top: 96px;
    padding-bottom: 80px;
  }
}

@media (max-width: 720px) {
  .brand-tag {
    display: none;
  }

  .nav {
    display: none;
  }

  .site-header.nav-open .nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 12px 20px 20px;
    background: rgba(12, 28, 48, 0.98);
    color: #f4f8fc;
    border-bottom: 1px solid rgba(148, 186, 224, 0.16);
  }

  .site-header.is-top.nav-open {
    background: rgba(12, 28, 48, 0.94);
    border-bottom-color: rgba(148, 186, 224, 0.22);
  }

  .site-header.is-top.nav-open .nav {
    background: rgba(12, 28, 48, 0.98);
    color: #f4f8fc;
    border-bottom-color: rgba(148, 186, 224, 0.16);
  }

  .site-header.nav-open .nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .partner-types,
  .growth-grid,
  .hw-capability {
    grid-template-columns: 1fr;
  }

  .brand-hero {
    font-size: clamp(1.4rem, 6.5vw, 1.85rem);
    letter-spacing: 0.28em;
    text-indent: 0.28em;
    margin-bottom: 20px;
  }

  .hero h1 {
    margin-bottom: 22px;
    gap: 8px;
  }

  .hero-title-main,
  .hero-title-sub {
    white-space: normal;
    letter-spacing: 0.1em;
    text-indent: 0;
  }

  .hero-title-main {
    font-size: clamp(1.85rem, 9vw, 2.55rem);
  }

  .hero-title-sub {
    font-size: clamp(1.7rem, 8vw, 2.3rem);
    letter-spacing: 0.28em;
    text-indent: 0.28em;
  }

  .hero-lead {
    max-width: 20em;
    margin-bottom: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}