:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --tint: #eef2f9;
  --head: #0a1626;
  --ink: #1c2b44;
  --muted: #5a6b85;
  --faint: #8492a8;
  --line: #e3e9f3;
  --blue: #1d4ed8;
  --blue-2: #2563eb;
  --teal: #0891b2;
  --amber: #d97706;
  --violet: #7c3aed;
  --grad: linear-gradient(135deg, #1d4ed8 0%, #0891b2 100%);
  --grad-text: linear-gradient(120deg, #1d4ed8, #0891b2);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono",
    Menlo, monospace;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 24px 54px -28px rgba(10, 22, 38, 0.28);
  --container: 1140px;
  --header-h: 74px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI",
    system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

section {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--head);
}

.kicker {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

.kicker::after {
  content: "";
  display: block;
  width: 38px;
  height: 3px;
  margin-top: 10px;
  border-radius: 3px;
  background: var(--grad);
}

.section {
  padding: 100px 0;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head .kicker::after {
  margin-inline: auto;
}

.section-head h2 {
  font-size: clamp(27px, 3.6vw, 38px);
  font-weight: 800;
  margin-bottom: 16px;
}

.section-head h2.one-line {
  font-size: clamp(12.5px, 2.9vw, 34px);
  white-space: nowrap;
}

.section-head h2.one-line-sm {
  font-size: clamp(11.5px, 2.7vw, 31px);
  white-space: nowrap;
}

.section-sub {
  color: var(--muted);
  font-size: 16.5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease,
    border-color 0.25s ease, color 0.25s ease;
}

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

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 16px 32px -16px rgba(29, 78, 216, 0.6);
}

.btn-primary:hover {
  box-shadow: 0 22px 42px -16px rgba(29, 78, 216, 0.75);
}

.btn-ghost {
  color: var(--head);
  border-color: rgba(10, 22, 38, 0.18);
  background: rgba(255, 255, 255, 0.75);
}

.btn-ghost:hover {
  border-color: rgba(29, 78, 216, 0.5);
  color: var(--blue);
  background: #fff;
  box-shadow: 0 14px 28px -18px rgba(10, 22, 38, 0.5);
}

.btn-block {
  width: 100%;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #f8fafd;
  font-family: var(--mono);
  font-size: 12px;
  color: #41536f;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.delay-1 {
  transition-delay: 0.1s;
}
.delay-2 {
  transition-delay: 0.2s;
}
.delay-3 {
  transition-delay: 0.3s;
}
.delay-4 {
  transition-delay: 0.4s;
}

/* Header */
.top-banner {
  display: block;
  margin-top: var(--header-h);
  height: min(660px, 57vw);
  overflow: hidden;
  background: var(--grad);
  transition: filter 0.2s ease;
}

.top-banner:hover {
  filter: brightness(1.07);
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(10, 22, 38, 0.08),
    0 14px 30px -26px rgba(10, 22, 38, 0.5);
}

.nav {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  object-fit: contain;
}

.brand-name {
  display: flex;
  flex-direction: column;
  color: var(--head);
  font-size: 18.5px;
  font-weight: 800;
  line-height: 1.15;
}

.brand-name small {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.nav-menu {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-menu a {
  display: block;
  padding: 8px 11px;
  border-radius: 9px;
  font-size: 14px;
  color: #41536f;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--blue);
  background: rgba(29, 78, 216, 0.07);
}

.nav-menu a.nav-cta {
  margin-left: 8px;
  padding-inline: 18px;
  color: #fff;
  background: var(--grad);
  font-weight: 600;
  box-shadow: 0 12px 24px -14px rgba(29, 78, 216, 0.8);
}

.nav-menu a.nav-cta:hover {
  color: #fff;
  background: var(--grad);
  filter: brightness(1.08);
}

.nav-menu .has-sub {
  position: relative;
}

.has-sub > a::after {
  content: "▾";
  margin-left: 6px;
  font-size: 10px;
  opacity: 0.7;
  display: inline-block;
  transition: transform 0.25s ease;
}

.has-sub:hover > a::after {
  transform: rotate(180deg);
}

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 176px;
  padding: 10px 8px 8px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease,
    visibility 0.25s ease;
  z-index: 120;
}

.has-sub:hover > .submenu,
.has-sub:focus-within > .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu a {
  display: block;
  padding: 10px 14px;
  border-radius: 9px;
  font-size: 14.5px;
  color: #41536f;
  white-space: nowrap;
}

.submenu a:hover,
.submenu a.active {
  color: var(--blue);
  background: rgba(29, 78, 216, 0.07);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: rgba(10, 22, 38, 0.04);
  border: 1px solid rgba(10, 22, 38, 0.12);
  border-radius: 12px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--head);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 64px 0 96px;
  background-color: #f5f8fd;
  background-image: radial-gradient(
      1100px 480px at 50% -12%,
      rgba(29, 78, 216, 0.13),
      transparent 62%
    ),
    repeating-linear-gradient(0deg, #dfe7f4 0 1px, transparent 1px 46px),
    repeating-linear-gradient(90deg, #dfe7f4 0 1px, transparent 1px 46px);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(29, 78, 216, 0.24);
  background: rgba(255, 255, 255, 0.82);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--blue);
  margin-bottom: 28px;
  box-shadow: 0 10px 24px -18px rgba(10, 22, 38, 0.6);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 10px rgba(29, 78, 216, 0.8);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

.hero h1 {
  font-size: clamp(22px, 4.6vw, 50px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-org {
  font-family: var(--mono);
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--blue);
  margin-bottom: 18px;
}

.hero-sub {
  font-size: clamp(15.5px, 1.8vw, 17.5px);
  color: var(--muted);
  max-width: 700px;
  margin-bottom: 28px;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.chip {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(10, 22, 38, 0.12);
  background: rgba(255, 255, 255, 0.85);
  font-family: var(--mono);
  font-size: 12.5px;
  color: #33445f;
}

.chip-accent {
  border-color: transparent;
  background: var(--grad);
  color: #fff;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.partner-note {
  padding-left: 16px;
  border-left: 3px solid;
  border-image: var(--grad) 1;
  font-size: 14.5px;
  color: var(--muted);
  max-width: 640px;
}

.partner-note strong {
  color: var(--head);
}

/* Monitor */
.monitor {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 84px 0;
}

.monitor-head {
  margin-bottom: 34px;
}

.monitor-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
}

.monitor-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 26px;
  align-items: stretch;
}

.stat-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fbfcfe, #f4f7fc);
}

.stat {
  padding: 14px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.stat strong {
  display: block;
  font-family: var(--mono);
  font-size: clamp(30px, 3.4vw, 40px);
  font-weight: 700;
  color: var(--head);
  line-height: 1.1;
}

.stat strong em {
  font-style: normal;
  font-size: 0.55em;
  color: var(--blue);
}

.stat span {
  font-size: 13px;
  color: var(--muted);
}

.stat-strip .tag-row {
  grid-column: 1 / -1;
  padding-top: 6px;
}

.chart-card {
  display: flex;
  flex-direction: column;
  padding: 22px 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.chart-card figcaption {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 12px;
}

.chart-wrap {
  flex: 1;
}

.chart-wrap svg {
  width: 100%;
  height: auto;
}

.chart-grid line {
  stroke: #e8edf6;
  stroke-width: 1;
}

.chart-grid line.dash {
  stroke-dasharray: 4 6;
  stroke: #eef2f8;
}

.series {
  fill: none;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1.6s ease;
}

.visible .series {
  stroke-dashoffset: 0;
}

.s1 {
  stroke: var(--blue);
}
.s2 {
  stroke: var(--teal);
}
.s3 {
  stroke: var(--amber);
}
.s4 {
  stroke: var(--violet);
}

.chart-axis text {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--faint);
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 12px;
  color: #41536f;
}

.chart-legend i {
  width: 14px;
  height: 3px;
  border-radius: 2px;
}

.chart-legend .c1 {
  background: var(--blue);
}
.chart-legend .c2 {
  background: var(--teal);
}
.chart-legend .c3 {
  background: var(--amber);
}
.chart-legend .c4 {
  background: var(--violet);
}

/* About */
.about {
  background: var(--bg);
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 26px;
}

.pillar {
  padding: 28px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pillar:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.pillar h3 {
  font-size: 17px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 2px solid;
  border-image: var(--grad) 1;
}

.pillar p {
  font-size: 14.5px;
  color: var(--muted);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 34px;
}

.value-card {
  position: relative;
  padding: 26px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.value-card:hover {
  transform: translateY(-5px);
  border-color: rgba(29, 78, 216, 0.35);
  box-shadow: var(--shadow);
}

.value-no {
  display: block;
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

.value-card h3 {
  font-size: 17.5px;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 14px;
  color: var(--muted);
}

.quote {
  position: relative;
  padding: 30px 34px 30px 40px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 26px;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 600;
  color: var(--head);
  line-height: 1.6;
}

.quote::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  border-radius: 5px 0 0 5px;
  background: var(--grad);
}

.quote cite {
  display: block;
  margin-top: 10px;
  font-family: var(--mono);
  font-style: normal;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--blue);
}

.quote-sm {
  padding: 22px 24px 22px 30px;
  font-size: 16.5px;
}

.info-table {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 26px;
}

.info-row {
  display: flex;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

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

.info-row span {
  flex: 0 0 108px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--faint);
  padding-top: 3px;
}

.info-row strong {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--head);
}

/* Tech */
.tech {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 30px;
}

.tech-card {
  padding: 28px 26px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-6px);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.tech-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: rgba(29, 78, 216, 0.09);
  color: var(--blue);
  margin-bottom: 18px;
}

.tech-icon svg {
  width: 26px;
  height: 26px;
}

.tech-card h3 {
  font-size: 17.5px;
  margin-bottom: 9px;
}

.tech-card p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
}

.route {
  padding: 28px;
  border: 1px dashed rgba(29, 78, 216, 0.35);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #eef3ff 0%, #eafaf9 100%);
}

.route-items {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 14px;
}

.route-item {
  flex: 1 1 180px;
  max-width: 240px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(29, 78, 216, 0.16);
  border-radius: 12px;
  text-align: center;
}

.route-item strong {
  display: block;
  font-family: var(--mono);
  font-size: 14.5px;
  color: var(--head);
}

.route-item span {
  font-size: 12.5px;
  color: var(--muted);
}

.route-x {
  align-self: center;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--blue);
}

.route-note {
  margin-top: 18px;
  text-align: center;
  font-size: 14px;
  color: #3c4d68;
}

/* Products */
.products {
  background: var(--bg);
}

.product-list {
  display: grid;
  gap: 26px;
}

.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.product-head {
  display: flex;
  gap: 22px;
  padding: 30px 32px 24px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfcfe, #fff);
}

.product-no {
  font-family: var(--mono);
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  flex-shrink: 0;
}

.product-head h3 {
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  margin-bottom: 8px;
}

.product-head h3 em {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--teal);
  text-transform: uppercase;
  margin-top: 4px;
}

.product-head p {
  font-size: 14.5px;
  color: var(--muted);
  max-width: 760px;
}

.product-body {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 30px;
  padding: 26px 32px 30px;
}

.feat h4,
.scene h4 {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--blue);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.feat li {
  position: relative;
  padding: 7px 0 7px 24px;
  font-size: 14.5px;
  color: var(--ink);
  border-bottom: 1px dashed var(--line);
}

.feat li:last-child {
  border-bottom: none;
}

.feat li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 15px;
  width: 8px;
  height: 4.5px;
  border-left: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
}

.scene .tag-row {
  margin-bottom: 18px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metric-row span {
  padding: 12px 10px;
  border-radius: 11px;
  background: #f3f7fd;
  border: 1px solid #e2eafb;
  text-align: center;
  font-size: 13px;
  color: var(--ink);
}

.metric-row b {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--blue);
  margin-bottom: 3px;
}

.disclaimer {
  margin-top: 26px;
  padding: 14px 18px;
  border-left: 3px solid var(--amber);
  background: #fffbeb;
  border-radius: 0 10px 10px 0;
  font-size: 13px;
  color: #7c6224;
}

/* Soft sensing */
.soft {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.soft-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 44px;
}

.soft-card {
  padding: 26px 28px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.soft-card:hover {
  transform: translateY(-5px);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.soft-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.soft-card h3 {
  font-size: 20px;
  font-weight: 800;
}

.soft-card .en {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.meter {
  position: relative;
  min-width: 138px;
  padding-bottom: 8px;
}

.meter-num {
  display: block;
  text-align: right;
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 8px;
}

.meter::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  border-radius: 99px;
  background: #e6ecf7;
}

.meter i {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  height: 6px;
  width: 0;
  border-radius: 99px;
  background: var(--grad);
  transition: width 1.2s ease 0.35s;
}

.reveal.visible .meter i {
  width: var(--w);
}

.soft-card dl {
  margin-bottom: 16px;
}

.soft-card dt {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--blue);
  margin-top: 12px;
  text-transform: uppercase;
}

.soft-card dd {
  font-size: 14px;
  color: var(--muted);
  padding-top: 3px;
}

.table-block,
.quad-block,
.cover {
  margin-bottom: 44px;
}

.table-block:last-child,
.quad-block:last-child {
  margin-bottom: 0;
}

.table-title {
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
}

.table-sub {
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  max-width: 760px;
  margin: 0 auto 24px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.table-wrap table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.table-wrap th {
  background: var(--tint);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--head);
  text-align: left;
  padding: 14px 16px;
  border-bottom: 2px solid var(--line);
}

.table-wrap td {
  padding: 15px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  vertical-align: top;
}

.table-wrap tbody tr:last-child td {
  border-bottom: none;
}

.table-wrap tbody tr:hover td {
  background: #f8fafd;
}

.table-wrap td:first-child {
  font-weight: 700;
  color: var(--head);
  white-space: nowrap;
}

.quad-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.quad-card {
  padding: 22px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.quad-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.quad-label {
  display: inline-block;
  padding: 5px 11px;
  border-radius: 8px;
  background: rgba(29, 78, 216, 0.08);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--blue);
  margin-bottom: 12px;
}

.quad-card p {
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 12px;
}

.stars {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--amber);
  font-weight: 700;
}

/* MPC */
.mpc {
  background: var(--bg);
}

.arch {
  max-width: 880px;
  margin: 0 auto 46px;
}

.arch-layer {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 12px;
  box-shadow: 0 10px 26px -22px rgba(10, 22, 38, 0.6);
}

.arch-layer:nth-of-type(3) {
  border-left-color: var(--teal);
}
.arch-layer:nth-of-type(5) {
  border-left-color: var(--violet);
}
.arch-layer:nth-of-type(7) {
  border-left-color: var(--amber);
}
.arch-layer:nth-of-type(9) {
  border-left-color: #0f766e;
}

.arch-no {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--blue);
  flex-shrink: 0;
}

.arch-body h4 {
  font-size: 16.5px;
  font-weight: 800;
  margin-bottom: 3px;
}

.arch-body h4 em {
  font-family: var(--mono);
  font-style: normal;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.arch-body p {
  font-size: 13.5px;
  color: var(--muted);
}

.arch-meta {
  margin-left: auto;
  flex-shrink: 0;
  max-width: 200px;
  padding: 7px 12px;
  border-radius: 9px;
  background: #ecfeff;
  border: 1px solid #bae6fd;
  font-family: var(--mono);
  font-size: 11.5px;
  color: #0e7490;
  text-align: center;
}

.arch-arrow {
  text-align: center;
  font-family: var(--mono);
  font-size: 17px;
  color: var(--blue);
  line-height: 1;
  padding: 5px 0;
}

.arch-feedback {
  margin-top: 6px;
  padding: 9px 16px;
  border: 1px dashed var(--teal);
  border-radius: 999px;
  background: #f0fbfd;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: #0e7490;
}

.arch-caption {
  margin-top: 14px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.mpc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 44px;
}

.mpc-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mpc-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.mpc-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.mpc-card > p {
  font-size: 14.5px;
  color: var(--muted);
  margin-bottom: 16px;
}

.mpc-card li {
  position: relative;
  padding: 7px 0 7px 26px;
  font-size: 14px;
  color: var(--ink);
}

.mpc-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 7px;
  font-family: var(--mono);
  color: var(--blue);
  font-weight: 700;
}

.cover {
  text-align: left;
}

.cover-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.cover-row span {
  padding: 16px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: center;
  font-size: 12.5px;
  color: var(--muted);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.cover-row span:hover {
  border-color: rgba(29, 78, 216, 0.4);
  transform: translateY(-3px);
}

.cover-row b {
  display: block;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--head);
  margin-bottom: 4px;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.benefit {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.benefit strong {
  display: block;
  font-family: var(--mono);
  font-size: 17px;
  color: var(--blue);
  margin-bottom: 8px;
}

.benefit span {
  font-size: 13.5px;
  color: var(--muted);
}

/* Agent */
.agent {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.agent-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  margin-bottom: 34px;
}

.module-panel,
.scenario-panel {
  padding: 26px 28px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel-title {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 18px;
}

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

.module {
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 11px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.module:hover {
  border-color: rgba(29, 78, 216, 0.4);
  transform: translateY(-3px);
}

.module strong {
  display: block;
  font-size: 15px;
  color: var(--head);
  margin-bottom: 4px;
}

.module span {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.55;
}

.scenario-list {
  display: grid;
  gap: 14px;
}

.scenario {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.scenario b {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--grad);
  color: #fff;
  font-family: var(--mono);
  font-size: 15px;
}

.scenario strong {
  display: block;
  font-size: 15.5px;
  color: var(--head);
  margin-bottom: 3px;
}

.scenario p {
  font-size: 13.5px;
  color: var(--muted);
}

.flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.flow-step {
  position: relative;
  padding: 18px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: center;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.flow-step:hover {
  border-color: rgba(29, 78, 216, 0.4);
  transform: translateY(-3px);
}

.flow-step span {
  display: block;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 6px;
}

.flow-step strong {
  display: block;
  font-size: 14.5px;
  color: var(--head);
}

.flow-step small {
  display: block;
  font-size: 11.5px;
  color: var(--muted);
  margin-top: 4px;
  line-height: 1.5;
}

.flow-note {
  padding: 16px 20px;
  border: 1px dashed rgba(29, 78, 216, 0.4);
  border-radius: 12px;
  background: #f5f9ff;
  text-align: center;
  font-size: 14px;
  color: #3c4d68;
}

/* Contact */
.contact {
  background: linear-gradient(160deg, #eaf0fb 0%, var(--bg) 65%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 44px;
  align-items: start;
}

.contact-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 26px;
  margin-bottom: 22px;
}

.contact-list li {
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}

.contact-list li:last-child {
  border-bottom: none;
}

.ci-label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
}

.contact-list strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--head);
}

.contact-list strong a:hover {
  color: var(--blue);
}

.contact-list small {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

.form-card {
  padding: 32px 32px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.form-card h3 {
  font-size: 21px;
  font-weight: 800;
  margin-bottom: 6px;
}

.form-hint {
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 22px;
}

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

.field {
  display: block;
  margin-bottom: 16px;
}

.field span {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 7px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid #d6deec;
  border-radius: 10px;
  background: #fbfcfe;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease,
    background 0.2s ease;
}

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

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #9aa8c0;
}

.form-note {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--faint);
}

.form-success {
  padding: 30px 10px;
  text-align: center;
}

.form-success strong {
  display: block;
  font-size: 20px;
  color: var(--head);
  margin-bottom: 10px;
}

.form-success p {
  font-size: 14.5px;
  color: var(--muted);
}

/* Footer */
.site-footer {
  background: #eaeff8;
  border-top: 1px solid var(--line);
  padding: 52px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid #d8e0ee;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 14px;
}

.footer-logo strong {
  display: block;
  font-size: 16.5px;
  line-height: 1.3;
  color: var(--head);
}

.footer-logo span {
  display: block;
  line-height: 1.2;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.footer-brand p {
  font-size: 14px;
  color: var(--muted);
  max-width: 460px;
}

.footer-col h4 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-col a:hover {
  color: var(--blue);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding-top: 22px;
  font-size: 13.5px;
  color: var(--faint);
}

.footer-bottom a {
  color: var(--blue);
}

.footer-bottom a:hover {
  color: var(--violet);
}

/* Back to top */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 90;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 13px;
  background: var(--grad);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 16px 32px -14px rgba(29, 78, 216, 0.7);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-top:hover {
  filter: brightness(1.1);
}

.back-top svg {
  width: 20px;
  height: 20px;
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 24px 24px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 26px 44px -32px rgba(10, 22, 38, 0.6);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-menu.open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    padding: 12px 14px;
    font-size: 15.5px;
    border-radius: 10px;
  }

  .nav-menu a.nav-cta {
    margin: 10px 0 0;
    text-align: center;
  }

  .nav-menu .submenu {
    position: static;
    min-width: 0;
    padding: 2px 0 8px 20px;
    background: transparent;
    backdrop-filter: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .nav-menu .submenu::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 4px;
    bottom: 10px;
    width: 2px;
    border-radius: 2px;
    background: rgba(29, 78, 216, 0.25);
  }

  .nav-menu .has-sub {
    position: relative;
  }

  .nav-menu .submenu a {
    padding: 8px 14px;
    font-size: 14px;
    color: var(--muted);
  }

  .nav-menu .submenu a:hover,
  .nav-menu .submenu a.active {
    color: var(--blue);
  }

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

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

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

  .product-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 76px 0;
  }

  .container {
    width: min(calc(100% - 36px), var(--container));
  }

  .hero {
    padding-top: 44px;
  }

  .stat-strip {
    grid-template-columns: 1fr 1fr;
    padding: 18px;
  }

  .pillar-grid,
  .tech-grid,
  .soft-grid,
  .mpc-grid,
  .value-grid,
  .quad-grid,
  .benefit-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .product-head {
    flex-direction: column;
    gap: 12px;
    padding: 24px 22px 20px;
  }

  .product-body {
    padding: 22px;
  }

  .product-no {
    font-size: 36px;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }

  .arch-layer {
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 18px;
  }

  .arch-meta {
    margin-left: 0;
    max-width: none;
    width: 100%;
  }

  .info-table,
  .contact-list {
    padding-inline: 18px;
  }

  .info-row {
    flex-direction: column;
    gap: 3px;
  }

  .soft-card header {
    flex-direction: column;
  }

  .meter {
    width: 100%;
  }

  .meter-num {
    text-align: left;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .series {
    stroke-dashoffset: 0;
    transition: none;
  }

  .reveal.visible .meter i,
  .meter i {
    width: var(--w);
    transition: none;
  }

  .hero-badge .dot {
    animation: none;
  }
}