:root {
  --bg: #1a1d25;
  --bg-soft: #1b2538;
  --surface: rgba(255, 255, 255, 0.08);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --card: #ffffff;
  --line: rgba(255, 255, 255, 0.12);
  --text: #f5f7fb;
  --text-secondary: rgba(245, 247, 251, 0.72);
  --text-dark: #131820;
  --text-muted: #4c5a6f;
  --primary: #6ab3ba;
  --primary-deep: #4e99a1;
  --accent: #c0c38b;
  --violet: #a78bfa;
  --orange: #e56112;
  --section-bg: #f6f8fb;
  --shadow: 0 24px 70px rgba(10, 17, 29, 0.18);
  --shadow-soft: 0 14px 40px rgba(16, 24, 40, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: min(1200px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-dark);
  background: #ffffff;
}

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

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

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(26, 29, 37, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  width: var(--container);
  margin: 0 auto;
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  padding: 8px 0;
}

.brand-logo {
  width: 154px;
  height: auto;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.18));
  transition: transform 0.25s ease, filter 0.25s ease;
}

.brand:hover .brand-logo {
  transform: translateY(-1px);
  filter: drop-shadow(0 8px 18px rgba(106, 179, 186, 0.24));
}

.nav-links {
  display: flex;
  gap: 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.96rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 600;
  transition: 0.25s ease;
}

.nav-cta {
  min-width: 112px;
  padding: 12px 18px;
  border: 0;
  background: var(--primary);
  color: var(--bg);
  cursor: pointer;
}

.nav-cta:hover,
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(106, 179, 186, 0.25);
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 18%, rgba(106, 179, 186, 0.2), transparent 34%),
    radial-gradient(circle at 92% 10%, rgba(167, 139, 250, 0.16), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
}

.hero-bg::before,
.hero-bg::after {
  content: "";
  position: absolute;
  inset: auto auto 6% -6%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(106, 179, 186, 0.08);
  filter: blur(10px);
}

.hero-bg::after {
  inset: 16% -5% auto auto;
  width: 280px;
  height: 280px;
  background: rgba(192, 195, 139, 0.08);
}

.hero-grid {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 78px);
  display: grid;
  grid-template-columns: minmax(0, 980px);
  justify-content: center;
  gap: 0;
  align-items: center;
  padding: 96px 0 112px;
}

.hero-copy {
  text-align: center;
}

.hero-copy h1 {
  margin: 20px 0 24px;
  color: var(--text);
  font-size: clamp(4.2rem, 9vw, 7.4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.hero-slogan {
  margin: -4px 0 18px;
  color: rgba(245, 247, 251, 0.82);
  font-size: clamp(1.18rem, 2vw, 1.7rem);
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: none;
}

.heartbeat-word {
  display: inline-block;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 46%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 22px rgba(106, 179, 186, 0.18);
  transform-origin: center;
  animation: heartbeatPulse 1.4s ease-in-out infinite, heartbeatGlow 4.8s linear infinite;
}

.hero-desc,
.section-heading p,
.system-desc,
.advantage-card p,
.case-card li,
.about-main p,
.contact-card p {
  font-size: 1.02rem;
  line-height: 1.85;
}

.hero-desc {
  color: var(--text-secondary);
  max-width: 940px;
  margin: 0 auto 38px;
  font-size: 1.3rem;
  line-height: 1.95;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--primary);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow-dark {
  background: rgba(106, 179, 186, 0.12);
  color: var(--primary-deep);
}

.hero-tags,
.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-tags {
  justify-content: center;
  gap: 16px;
}

.hero-tags span,
.feature-list span {
  padding: 14px 20px;
  border-radius: 999px;
  font-size: 1.08rem;
}

.hero-tags span {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-actions {
  margin-top: 42px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.btn {
  min-height: 62px;
  padding: 0 32px;
  font-size: 1.06rem;
}

.btn-primary {
  background: var(--primary);
  color: var(--bg);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.08);
}

.panel-chip,
.system-badge,
.case-tag,
.snapshot-kicker,
.value-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}

@keyframes heartbeatPulse {
  0%,
  100% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.04);
  }
  28% {
    transform: scale(0.985);
  }
  42% {
    transform: scale(1.08);
  }
  56% {
    transform: scale(0.99);
  }
  70% {
    transform: scale(1.03);
  }
}

@keyframes heartbeatGlow {
  0% {
    filter: drop-shadow(0 0 0 rgba(106, 179, 186, 0.08));
  }
  35% {
    filter: drop-shadow(0 0 14px rgba(106, 179, 186, 0.26));
  }
  70% {
    filter: drop-shadow(0 0 18px rgba(192, 195, 139, 0.22));
  }
  100% {
    filter: drop-shadow(0 0 10px rgba(167, 139, 250, 0.18));
  }
}

.section {
  padding: 96px 0;
}

.section-product,
.section-cases {
  background: var(--section-bg);
}

.section-company {
  background:
    radial-gradient(circle at 12% 16%, rgba(106, 179, 186, 0.08), transparent 26%),
    radial-gradient(circle at 88% 14%, rgba(167, 139, 250, 0.08), transparent 22%),
    linear-gradient(180deg, #fbfdff 0%, #f3f7fb 100%);
}

.company-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-items: start;
}

.company-copy {
  padding-top: 0;
  max-width: 700px;
}

.company-kicker {
  margin: 22px 0 10px;
  color: var(--primary-deep);
  font-size: 1.86rem;
  font-weight: 700;
  line-height: 1.35;
}

.company-copy h2 {
  margin: 0 0 26px;
  color: #132038;
  font-size: clamp(3.5rem, 5.8vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.company-title {
  white-space: nowrap;
}

.company-text {
  display: grid;
  gap: 24px;
  max-width: 700px;
}

.company-text p {
  margin: 0;
  color: #364457;
  font-size: 1.5rem;
  line-height: 1.9;
}

.milestone-card {
  position: relative;
  overflow: hidden;
  margin-top: 54px;
  margin-left: 0;
  padding: 30px 30px 28px 30px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 88% 14%, rgba(106, 179, 186, 0.12), transparent 24%),
    linear-gradient(180deg, #172b4b 0%, #101f39 100%);
  color: #fff;
  box-shadow: 0 26px 60px rgba(14, 24, 44, 0.22);
}

.milestone-card::before {
  content: "";
  position: absolute;
  inset: 16px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.milestone-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}

.milestone-kicker {
  margin: 0 0 8px;
  color: rgba(106, 179, 186, 0.92);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.milestone-card h3 {
  position: relative;
  margin: 0;
  font-size: 1.92rem;
  color: #f8fbff;
}

.milestone-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: 1rem;
  line-height: 1.75;
}

.milestone-list {
  position: relative;
  display: grid;
  gap: 18px;
}

.milestone-item {
  position: relative;
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 18px 18px 16px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.milestone-line {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 12px;
  padding-top: 2px;
}

.milestone-line::after {
  content: "";
  width: 2px;
  flex: 1;
  min-height: 72px;
  border-radius: 999px;
  background: linear-gradient(180deg, currentColor 0%, rgba(255, 255, 255, 0.12) 100%);
  opacity: 0.7;
}

.milestone-item:last-child .milestone-line::after {
  opacity: 0.3;
  min-height: 48px;
}

.milestone-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.milestone-dot {
  position: relative;
  z-index: 1;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.03), 0 0 18px currentColor;
}

.milestone-body h4 {
  margin: 0 0 8px;
  min-height: 2.6em;
  display: flex;
  align-items: flex-start;
  font-size: 1.5rem;
  line-height: 1.3;
  color: #ffffff;
}

.milestone-body p {
  margin: 0;
  color: #ffffff !important;
  min-height: 5.8em;
  font-size: 1.18rem;
  line-height: 1.8;
  font-weight: 700;
}

.milestone-body strong {
  color: #ffffff !important;
  font-weight: 800;
}

.milestone-teal {
  color: #56d5dc;
}

.milestone-lime {
  color: #d5dd66;
}

.milestone-violet {
  color: #a983ff;
}

.milestone-orange {
  color: #ff6a18;
}

.milestone-card-horizontal {
  margin-top: 16px;
}

.milestone-card-horizontal .milestone-head {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 18px;
}

.milestone-card-horizontal .milestone-note {
  max-width: 420px;
  text-align: right;
}

.milestone-card-horizontal .milestone-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.milestone-card-horizontal .milestone-item {
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 22px 20px 20px;
  align-content: start;
}

.milestone-card-horizontal .milestone-line {
  grid-template-columns: auto auto 1fr;
  align-items: center;
  justify-items: start;
  gap: 12px;
  padding-top: 0;
}

.milestone-card-horizontal .milestone-line::after {
  width: 100%;
  height: 3px;
  min-height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, currentColor 0%, currentColor 68%, rgba(255, 255, 255, 0.28) 100%);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.milestone-card-horizontal .milestone-item:last-child .milestone-line::after {
  opacity: 0.55;
  min-height: 3px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 44px;
}

.section-heading.narrow {
  max-width: 760px;
}

.section-heading h2,
.about-main h2 {
  margin: 18px 0 12px;
  font-size: clamp(2rem, 3.6vw, 3rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.section-heading p,
.about-main p {
  color: var(--text-muted);
  margin: 0;
}

.pain-function-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
}

.pain-card,
.product-visual-card,
.system-card,
.advantage-card,
.case-card,
.contact-card {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.pain-card {
  padding: 28px;
  background: linear-gradient(180deg, #1b2538 0%, #121924 100%);
  color: #fff;
}

.pain-summary {
  padding: 0;
  background: transparent;
  box-shadow: none;
  color: var(--text-dark);
}

.pain-summary h3 {
  margin: 0 0 18px;
  font-size: clamp(2.05rem, 3.6vw, 2.8rem);
  color: #12213a;
  line-height: 1.12;
}

.pain-pill-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.pain-pill-card {
  position: relative;
  overflow: hidden;
  min-height: 140px;
  padding: 18px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, #162746 0%, #11203b 100%);
  border: 1px solid rgba(17, 32, 59, 0.08);
  box-shadow: 0 14px 30px rgba(18, 33, 58, 0.12);
  transition: transform 0.28s ease, background 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.pain-pill-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 58%);
  opacity: 0.9;
  pointer-events: none;
}

.pain-pill-card:hover {
  transform: translateY(-8px) scale(1.02);
  background: linear-gradient(180deg, #7b61d9 0%, #5b44c9 100%);
  border-color: rgba(167, 139, 250, 0.42);
  box-shadow: 0 18px 34px rgba(107, 79, 211, 0.26);
}

.pain-pill-card span {
  position: relative;
  z-index: 1;
  color: #ffffff;
  font-size: 2.55rem;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0.04em;
}

.pain-card-wide {
  grid-column: 1 / -1;
}

.pain-card h3,
.system-card h3,
.advantage-card h3,
.case-card h3,
.contact-card h3,
.about-info h3 {
  margin-top: 0;
  margin-bottom: 14px;
  font-size: 1.22rem;
}

.pain-card ul,
.case-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pain-card li,
.case-card li {
  position: relative;
  padding-left: 18px;
}

.pain-card li + li,
.case-card li + li {
  margin-top: 14px;
}

.pain-card li::before,
.case-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.product-visual-card {
  position: relative;
  overflow: hidden;
  padding: 34px;
  background:
    radial-gradient(circle at 12% 16%, rgba(106, 179, 186, 0.18), transparent 28%),
    radial-gradient(circle at 88% 14%, rgba(167, 139, 250, 0.16), transparent 24%),
    linear-gradient(180deg, #15233d 0%, #0f1728 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.product-visual-card::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.product-visual-heading {
  max-width: 900px;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.product-visual-heading h3 {
  margin: 16px 0 12px;
  font-size: 1.72rem;
  color: #ffffff;
}

.product-visual-heading p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.85;
  font-size: 1.12rem;
}

.product-visual-topline {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  margin-bottom: 26px;
  padding: 10px 0 18px;
  z-index: 1;
}

.product-visual-topline::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(106, 179, 186, 0.35), rgba(106, 179, 186, 0.95), rgba(192, 195, 139, 0.95), rgba(167, 139, 250, 0.75));
  box-shadow: 0 0 18px rgba(106, 179, 186, 0.35);
}

.visual-system-title {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 78px;
  padding: 18px 20px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(5, 12, 24, 0.92) 0%, rgba(8, 18, 34, 0.88) 100%);
  color: #f7fbff;
  font-size: 1.12rem;
  font-weight: 700;
  text-align: center;
  border: 1px solid rgba(106, 179, 186, 0.18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 14px 30px rgba(5, 12, 24, 0.28);
}

.visual-arrow {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(106, 179, 186, 0.18), rgba(167, 139, 250, 0.16));
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 10px 26px rgba(19, 29, 48, 0.36);
  font-size: 2rem;
  font-weight: 800;
  color: #d9f8fb;
}

.visual-bridge-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 76px 1fr;
  gap: 18px;
  align-items: stretch;
  padding: 26px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1;
}

.visual-side {
  display: grid;
  gap: 18px;
}

.visual-center {
  display: grid;
  align-items: stretch;
  gap: 18px;
}

.visual-center span {
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(106, 179, 186, 0.16) 0%, rgba(167, 139, 250, 0.16) 100%);
  color: #d8f7fb;
  font-size: 2rem;
  font-weight: 800;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.bridge-card {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 18px 18px 16px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.04) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.bridge-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.82;
  font-size: 1.08rem;
}

.bridge-badge {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.24);
}

.bridge-icon {
  width: 24px;
  height: 24px;
  display: block;
}

.badge-orange {
  background: linear-gradient(180deg, #ff7b19 0%, #e56112 100%);
}

.badge-blue {
  background: linear-gradient(180deg, #2d66da 0%, #1d4fb6 100%);
}

.system-card {
  padding: 38px 36px;
  background: #fff;
  min-height: 304px;
}

.system-head {
  display: grid;
  gap: 18px;
  margin-bottom: 20px;
  justify-items: center;
  text-align: center;
}

.system-card h3 {
  margin-bottom: 0;
  font-size: 2.5rem;
  line-height: 1.2;
  color: #10203a;
  max-width: 560px;
}

.system-badge {
  min-height: 52px;
  padding: 0 22px;
  font-size: 1.42rem;
  font-weight: 800;
}

.system-desc {
  margin: 0;
  color: #324257;
  font-size: 1.34rem;
  line-height: 1.88;
  text-align: center;
}

.system-card.alt {
  background: linear-gradient(180deg, #ffffff 0%, #f2f7f8 100%);
}

.system-head {
  display: grid;
  gap: 18px;
  margin-bottom: 16px;
}

.system-badge {
  padding: 0 22px;
  color: #083942;
  background: rgba(106, 179, 186, 0.16);
}

.system-desc {
  margin: 0;
  color: var(--text-muted);
}

.system-title-main,
.system-title-sub {
  display: block;
}

.system-title-sub {
  margin-top: 10px;
  font-size: 1.6rem;
  line-height: 1.2;
  text-align: center;
  color: #38557c;
}

.feature-list span {
  background: #eef5f6;
  color: #21454a;
}

.system-modules-board {
  padding: 8px 0 0;
  margin-bottom: 36px;
  background: transparent;
  box-shadow: none;
}

.system-arrow-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto 34px;
  width: 244px;
  height: 214px;
}

.system-arrow-curve {
  width: 244px;
  height: 214px;
  overflow: visible;
  transform: rotate(180deg);
}

.system-arrow-fill {
  fill: url(#systemArrowGradient);
  filter: url(#systemArrowShadow);
}

.system-module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.system-module-column {
  display: grid;
  gap: 18px;
}

.system-module-card {
  position: relative;
  overflow: hidden;
  padding: 24px 26px 24px 90px;
  border-radius: 30px;
  background: linear-gradient(180deg, #fbfdff 0%, #f6f9fc 100%);
  border: 2px solid #dbe5f1;
  box-shadow: 0 16px 30px rgba(18, 33, 58, 0.08);
  min-height: 268px;
}

.module-card-alt {
  background: linear-gradient(180deg, #fbfdff 0%, #f6f9fc 100%);
}

.module-side-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(88, 113, 154, 0.1);
  color: #4d6488;
  font-size: 0.88rem;
  font-weight: 700;
}

.module-mark {
  position: absolute;
  left: 26px;
  top: 22px;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  font-size: 1.5rem;
  font-weight: 800;
  box-shadow: 0 10px 20px rgba(32, 48, 84, 0.16);
}

.mark-blue {
  background: linear-gradient(180deg, #6880a8 0%, #5b739d 100%);
}

.mark-orange {
  background: linear-gradient(180deg, #ff7b19 0%, #f25f00 100%);
}

.system-module-card h4 {
  margin: 14px 0 8px;
  color: #132847;
  font-size: 2.18rem;
  line-height: 1.26;
}

.module-keyword-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
}

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

.module-keyword {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 68px;
  padding: 10px 16px;
  border-radius: 18px;
  background: linear-gradient(180deg, #eef3f9 0%, #e4edf7 100%);
  color: #21395f;
  font-size: 1.72rem;
  line-height: 1.2;
  font-weight: 800;
  text-align: center;
}

.module-keyword-grid-two .module-keyword {
  min-height: 64px;
}

.heartbeat-board {
  display: grid;
  gap: 30px;
}

.heartbeat-intro {
  padding: 38px 40px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.heartbeat-intro h3 {
  margin: 16px 0 16px;
  font-size: 1.86rem;
  line-height: 1.34;
}

.heartbeat-intro p,
.heartbeat-step p,
.heartbeat-values p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.9;
  font-size: 1.12rem;
}

.heartbeat-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.heartbeat-step {
  padding: 28px 28px 26px;
  border-radius: 18px;
  background: #f8fafc;
  border: 1px solid rgba(27, 37, 56, 0.08);
  box-shadow: var(--shadow-soft);
}

.heartbeat-step strong {
  display: block;
  margin-bottom: 14px;
  font-size: 1.26rem;
  color: #132847;
}

.heartbeat-panel {
  padding: 34px 36px 38px;
  color: #fff;
  background: linear-gradient(180deg, #1b2538 0%, #121924 100%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.heartbeat-diagram-title {
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.34rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.heartbeat-center {
  min-height: 220px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  text-align: center;
  background:
    radial-gradient(circle at center, rgba(106, 179, 186, 0.26), rgba(106, 179, 186, 0) 58%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.heartbeat-center span {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.28em;
  font-size: 0.82rem;
  margin-bottom: 10px;
}

.heartbeat-center strong {
  display: block;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1;
}

.heartbeat-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.heartbeat-values article {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.heartbeat-values h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.heartbeat-diagram {
  position: relative;
  min-height: 292px;
  padding: 6px 0 0;
  overflow: hidden;
}

.heartbeat-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.heartbeat-base-path {
  fill: none;
  stroke: url(#heartbeatStroke);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.38;
}

.heartbeat-path {
  fill: none;
  stroke: url(#heartbeatStroke);
  stroke-width: 5.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 18px rgba(106, 179, 186, 0.28));
  stroke-dasharray: 24 76;
  animation: heartbeatSweep 3.6s linear infinite;
}

.heartbeat-dot {
  fill: #fff;
  stroke: #6ab3ba;
  stroke-width: 5;
}

.heartbeat-pulse {
  fill: #ffffff;
  stroke: #6ab3ba;
  stroke-width: 4;
  filter: drop-shadow(0 0 14px rgba(106, 179, 186, 0.6));
}

.flow-card {
  position: absolute;
  width: 238px;
  min-height: 108px;
  padding: 18px 18px 16px;
  border-radius: 20px;
  background: rgba(10, 16, 24, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.18);
  display: grid;
  justify-items: center;
  align-content: start;
  text-align: center;
}

.flow-card span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(106, 179, 186, 0.16);
  color: #d6f7fb;
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.flow-card h3 {
  margin: 0;
  font-size: 1.16rem;
  line-height: 1.4;
  text-align: center;
}

.flow-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.6;
  font-size: 0.94rem;
}

.flow-card-1 {
  left: 22px;
  top: 18px;
}

.flow-card-2 {
  left: 286px;
  top: 18px;
}

.flow-card-3 {
  left: 574px;
  top: 18px;
}

.flow-card-4 {
  right: 24px;
  top: 18px;
}

@keyframes heartbeatSweep {
  from {
    stroke-dashoffset: 100;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.value-label {
  padding: 7px 11px;
  margin-bottom: 12px;
  color: var(--orange);
  background: rgba(229, 97, 18, 0.1);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: stretch;
}

.case-card {
  height: 100%;
  padding: 34px 34px 32px;
  display: grid;
  align-content: start;
  gap: 18px;
  background:
    radial-gradient(circle at 92% 10%, rgba(106, 179, 186, 0.12), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(106, 179, 186, 0.12);
  box-shadow: 0 18px 44px rgba(16, 24, 40, 0.08);
}

.case-top {
  display: grid;
  gap: 10px;
  align-content: start;
  margin-bottom: 4px;
}

.case-tag {
  width: fit-content;
  padding: 9px 14px;
  background: rgba(167, 139, 250, 0.14);
  color: #6c43ef;
  font-size: 0.88rem;
}

.case-top h3 {
  margin: 0;
  font-size: 1.72rem;
  line-height: 1.3;
  color: #132038;
}

.case-meta {
  margin: 0;
  color: #607086;
  font-size: 1.04rem;
  line-height: 1.6;
}

.case-card ul {
  display: grid;
  gap: 16px;
}

.case-card li {
  padding-left: 22px;
  font-size: 1.14rem;
  line-height: 1.88;
  color: #334256;
}

.case-card li + li {
  margin-top: 0;
}

.case-card li::before {
  top: 0.88em;
  width: 8px;
  height: 8px;
}

.section-about {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-items: start;
}

.about-main {
  max-width: 1120px;
}

.about-info {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
  margin-bottom: 44px;
}

.about-card {
  padding: 26px 26px 24px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.about-card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
  border-radius: 18px;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(180deg, rgba(106, 179, 186, 0.18), rgba(167, 139, 250, 0.18));
  color: #1b3458;
  font-size: 1.22rem;
  font-weight: 800;
}

.about-card h3 {
  margin: 0 0 12px;
  font-size: 1.42rem;
  line-height: 1.35;
  color: #132038;
}

.about-info p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 1.12rem;
}

.about-card-team {
  background: linear-gradient(180deg, #182948 0%, #11203b 100%);
  box-shadow: 0 18px 42px rgba(13, 26, 48, 0.16);
}

.about-card-team .about-card-icon {
  background: linear-gradient(180deg, rgba(106, 179, 186, 0.22), rgba(106, 179, 186, 0.12));
  color: #dff7fb;
}

.about-card-team h3 {
  color: #ffffff;
}

.about-card-team p {
  color: rgba(231, 240, 249, 0.78);
}

.section-cta-banner {
  background:
    radial-gradient(circle at 14% 20%, rgba(106, 179, 186, 0.18), transparent 28%),
    radial-gradient(circle at 86% 18%, rgba(167, 139, 250, 0.16), transparent 26%),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
}

.cta-banner {
  min-height: 420px;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 20px;
}

.cta-banner h2 {
  margin: 0;
  color: #ffffff;
  font-size: clamp(3.3rem, 7.5vw, 6rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.cta-banner p {
  max-width: 840px;
  margin: 0;
  color: rgba(245, 247, 251, 0.76);
  font-size: 1.42rem;
  line-height: 1.88;
}

.cta-contact-btn {
  margin-top: 10px;
  min-width: 220px;
}

.cta-qr {
  display: grid;
  justify-items: center;
  gap: 12px;
  margin-top: 10px;
  padding: 12px;
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 14px 30px rgba(26, 29, 37, 0.22);
}

.cta-qr img {
  width: 156px;
  height: 156px;
  object-fit: contain;
}

.cta-qr span {
  color: var(--bg-soft);
  font-size: 0.95rem;
  font-weight: 700;
}

.logo-box {
  margin-bottom: 22px;
  padding: 16px;
  border-radius: 18px;
  background: #fff;
}

.qr-box {
  margin-bottom: 20px;
  padding: 18px;
  min-height: 168px;
  border-radius: 18px;
  border: 1px dashed rgba(255, 255, 255, 0.24);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  display: grid;
  place-items: center;
  text-align: center;
}

.qr-box span {
  display: block;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.92rem;
}

.qr-box strong {
  max-width: 240px;
  line-height: 1.7;
}

.contact-dialog {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 28px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.28s ease;
}

.contact-dialog.is-open {
  opacity: 1;
  pointer-events: auto;
}

.contact-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 13, 23, 0.58);
  backdrop-filter: blur(8px);
}

.contact-modal {
  position: relative;
  z-index: 1;
  width: min(1080px, calc(100vw - 48px));
  max-height: calc(100vh - 56px);
  overflow: auto;
  padding: 34px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 12% 12%, rgba(106, 179, 186, 0.14), transparent 24%),
    radial-gradient(circle at 92% 10%, rgba(167, 139, 250, 0.12), transparent 20%),
    linear-gradient(180deg, #fbfdff 0%, #f4f8fc 100%);
  box-shadow: 0 30px 80px rgba(10, 17, 29, 0.24);
}

.contact-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(19, 32, 56, 0.08);
  color: #132038;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
}

.contact-modal-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(300px, 0.78fr);
  gap: 26px;
  align-items: start;
}

.contact-modal-main {
  padding-right: 8px;
}

.contact-modal h3 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3vw, 2.6rem);
  line-height: 1.15;
  color: #132038;
  text-align: left;
}

.contact-intro {
  margin: 0 0 24px;
  color: #5f6f83;
  font-size: 1.04rem;
  line-height: 1.85;
  text-align: left;
}

.contact-form {
  display: grid;
  gap: 22px;
}

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

.contact-field {
  display: grid;
  gap: 10px;
}

.contact-field span {
  color: #334256;
  font-size: 0.98rem;
  font-weight: 700;
}

.contact-field input {
  width: 100%;
  min-height: 58px;
  padding: 0 18px;
  border-radius: 16px;
  border: 1px solid rgba(19, 32, 56, 0.12);
  background: #ffffff;
  color: #132038;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.24s ease, box-shadow 0.24s ease;
}

.contact-field input:focus {
  border-color: rgba(106, 179, 186, 0.9);
  box-shadow: 0 0 0 4px rgba(106, 179, 186, 0.12);
}

.contact-submit {
  min-width: 220px;
  margin-top: 8px;
}

.contact-side-card {
  margin-top: 98px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: #132038;
  box-shadow: none;
  min-height: 100%;
  display: grid;
  align-content: start;
  justify-items: center;
  text-align: center;
}

.contact-side-card p {
  margin: 0;
  color: #5f6f83;
  line-height: 1.82;
  font-size: 1rem;
  max-width: 340px;
}

.qr-box-light {
  width: min(100%, 340px);
  min-height: 340px;
  margin-bottom: 20px;
  padding: 24px;
  border: 0;
  background: rgba(19, 32, 56, 0.03);
  box-shadow: none;
}

.site-footer {
  background: var(--bg);
  color: rgba(255, 255, 255, 0.68);
}

.footer-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 0;
  font-size: 0.92rem;
}

.footer-content {
  display: grid;
  justify-items: center;
  gap: 8px;
  text-align: center;
}

.footer-company {
  color: #ffffff;
  font-size: 1.05rem;
  line-height: 1.35;
}

.footer-records,
.footer-record {
  display: inline-flex;
  align-items: center;
}

.footer-records {
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.82rem;
  line-height: 1.5;
}

.footer-record {
  gap: 4px;
}

.footer-record img {
  width: 18px;
  height: 20px;
  object-fit: contain;
}

@media (max-width: 1100px) {
  .hero-grid,
  .company-grid,
  .pain-function-grid,
  .case-grid,
  .about-info,
  .contact-modal-grid {
    grid-template-columns: 1fr;
  }

  .product-visual-topline,
  .visual-bridge-grid {
    grid-template-columns: 1fr;
  }

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

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

  .visual-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  .visual-center {
    grid-template-columns: repeat(3, 1fr);
  }

  .bridge-card {
    grid-template-columns: 44px 1fr;
  }

  .contact-modal-main {
    padding-right: 0;
  }

  .milestone-card-horizontal .milestone-head,
  .milestone-card-horizontal .milestone-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .milestone-card-horizontal .milestone-note {
    max-width: none;
    text-align: left;
  }
}

@media (max-width: 860px) {
  .nav {
    min-height: 0;
    flex-wrap: wrap;
    padding: 10px 0 14px;
    justify-content: center;
  }

  .brand-logo {
    width: 138px;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }

  .hero-grid {
    padding: 56px 0 72px;
  }

  .section-company {
    padding-top: 82px;
  }

  .about-card h3 {
    font-size: 1.28rem;
  }

  .about-info p {
    font-size: 1.04rem;
  }

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

  .contact-modal {
    padding: 28px 22px 22px;
    width: min(100vw - 24px, 1080px);
  }

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

  .company-copy h2 {
    font-size: 3.85rem;
  }

  .company-title {
    white-space: normal;
  }

  .company-kicker {
    font-size: 1.52rem;
  }

  .company-text p {
    font-size: 1.24rem;
    line-height: 1.88;
  }

  .milestone-card {
    margin-top: 14px;
    margin-left: 0;
    padding: 28px 24px 28px 24px;
  }

  .milestone-card h3 {
    font-size: 1.72rem;
  }

  .milestone-card-horizontal .milestone-head,
  .milestone-card-horizontal .milestone-list {
    grid-template-columns: 1fr;
  }

  .milestone-card-horizontal .milestone-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px 18px 18px;
  }

  .milestone-item {
    grid-template-columns: 64px 1fr;
  }

  .milestone-body h4 {
    min-height: 2.6em;
    font-size: 1.42rem;
  }

  .milestone-body p {
    min-height: 5.8em;
    font-size: 1.18rem;
  }

  .system-card {
    padding: 30px 24px;
    min-height: auto;
  }

  .system-card h3 {
    font-size: 1.92rem;
  }

  .system-badge {
    min-height: 46px;
    font-size: 1.16rem;
  }

  .system-desc {
    font-size: 1.16rem;
    line-height: 1.82;
  }

  .system-title-sub {
    font-size: 1.26rem;
  }

  .system-arrow-wrap {
    margin-bottom: 22px;
    width: 188px;
    height: 164px;
  }

  .system-arrow-curve {
    width: 188px;
    height: 164px;
  }

  .system-module-card {
    padding: 22px 20px 22px 82px;
  }

  .system-module-card h4 {
    font-size: 1.72rem;
  }

  .module-mark {
    left: 18px;
    top: 18px;
    width: 50px;
    height: 50px;
    font-size: 1.28rem;
  }

  .module-keyword {
    min-height: 58px;
    font-size: 1.42rem;
  }

  .heartbeat-diagram {
    min-height: auto;
    padding: 18px;
    display: grid;
    gap: 14px;
  }

  .heartbeat-steps {
    grid-template-columns: 1fr;
  }

  .heartbeat-svg {
    position: relative;
    height: 140px;
    margin-bottom: 10px;
  }

  .flow-card {
    position: relative;
    width: 100%;
    left: auto;
    right: auto;
    top: auto;
  }

  .heartbeat-panel {
    padding: 24px 20px 24px;
  }

  .heartbeat-intro h3 {
    font-size: 1.56rem;
  }

  .heartbeat-intro p,
  .heartbeat-step p {
    font-size: 1rem;
  }

  .heartbeat-step strong {
    font-size: 1.14rem;
  }

  .heartbeat-diagram-title {
    font-size: 1.18rem;
  }

  .section {
    padding: 74px 0;
  }

  .footer-inner {
    padding: 18px 0;
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 560px) {
  :root {
    --container: min(100% - 28px, 1200px);
  }

  .footer-inner {
    min-height: 92px;
    padding: 16px 0;
  }

  .brand-logo {
    width: 126px;
  }

  .footer-company {
    font-size: 1rem;
  }

  .footer-records {
    gap: 5px;
    font-size: 0.76rem;
  }

  .contact-dialog {
    padding: 12px;
  }

  .contact-close {
    top: 12px;
    right: 12px;
  }

  .hero-copy h1 {
    font-size: 3rem;
  }

  .cta-banner {
    min-height: 360px;
  }

  .cta-banner h2 {
    font-size: 2.9rem;
  }

  .cta-banner p {
    font-size: 1.16rem;
  }

  .hero-desc {
    font-size: 1.08rem;
    line-height: 1.82;
  }

  .eyebrow {
    font-size: 0.84rem;
    padding: 10px 16px;
  }

  .company-copy h2 {
    font-size: 2.95rem;
  }

  .pain-summary h3 {
    font-size: 1.7rem;
  }

  .pain-pill-grid {
    grid-template-columns: 1fr;
  }

  .pain-pill-card {
    min-height: 86px;
  }

  .pain-pill-card span {
    font-size: 1.08rem;
  }

  .company-kicker {
    margin-top: 18px;
    font-size: 1.24rem;
  }

  .company-text {
    gap: 16px;
  }

  .company-text p {
    font-size: 1.08rem;
    line-height: 1.8;
  }

  .milestone-card h3 {
    font-size: 1.46rem;
  }

  .milestone-card-horizontal .milestone-item {
    padding: 16px;
  }

  .milestone-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }

  .milestone-line {
    justify-items: start;
    grid-template-columns: auto auto 1fr;
    align-items: center;
  }

  .milestone-line::after {
    min-height: 2px;
    width: 100%;
    height: 2px;
  }

  .milestone-body h4 {
    min-height: auto;
    font-size: 1.2rem;
  }

  .milestone-body p {
    min-height: auto;
    font-size: 1rem;
    line-height: 1.65;
  }

  .system-card h3 {
    font-size: 1.54rem;
  }

  .system-badge {
    min-height: 42px;
    font-size: 1rem;
  }

  .system-desc {
    font-size: 1rem;
    line-height: 1.76;
  }

  .system-title-sub {
    font-size: 1.08rem;
  }

  .system-arrow-wrap {
    width: 138px;
    height: 126px;
  }

  .system-arrow-curve {
    width: 138px;
    height: 126px;
  }

  .system-module-card h4 {
    font-size: 1.4rem;
  }

  .module-keyword-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .module-keyword {
    min-height: 52px;
    font-size: 1.14rem;
  }

  .heartbeat-intro h3 {
    font-size: 1.34rem;
  }

  .heartbeat-diagram-title {
    font-size: 1.08rem;
  }

  .flow-card {
    min-height: auto;
    padding: 16px 14px 14px;
  }

  .hero-actions,
  .hero-tags,
  .feature-list {
    gap: 10px;
  }

  .hero-tags span,
  .feature-list span {
    font-size: 0.95rem;
    padding: 12px 16px;
  }

  .btn,
  .nav-cta {
    width: 100%;
  }
}

/* Mobile navigation and heartbeat diagram retain their intended visual hierarchy. */
@media (max-width: 860px) {
  /* Header layout is intentionally compact on touch devices. */
}

@media (max-width: 560px) {
  .site-header {
    backdrop-filter: blur(14px);
  }

  .nav {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px 12px;
    padding: 7px 0 8px;
    justify-content: initial;
  }

  .brand {
    grid-column: 1;
    padding: 2px 0;
  }

  .brand-logo {
    width: 112px;
  }

  .nav-cta {
    grid-column: 2;
    width: auto;
    min-height: 34px;
    padding: 0 13px;
    font-size: .82rem;
    white-space: nowrap;
  }

  .nav-links {
    grid-column: 1 / -1;
    order: initial;
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 19px;
    padding: 7px 2px 2px;
    overflow-x: auto;
    scrollbar-width: none;
    white-space: nowrap;
    font-size: .88rem;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    flex: 0 0 auto;
  }

  .site-header.is-condensed .nav {
    display: block;
    padding: 0;
  }

  .site-header.is-condensed .brand,
  .site-header.is-condensed .nav-cta {
    display: none;
  }

  .site-header.is-condensed .nav-links {
    display: flex;
    width: var(--container);
    margin: 0 auto;
    padding: 12px 2px;
  }

  .hero-grid {
    min-height: min(790px, calc(100svh - 96px));
    padding: 40px 0 58px;
    align-items: start;
  }

  .hero-copy h1 {
    position: relative;
    margin: 17px 0 19px;
    font-size: clamp(2.45rem, 10.5vw, 3.1rem);
    line-height: 1.05;
  }

  .hero-slogan {
    position: relative;
    max-width: 430px;
    margin: 0 auto 22px;
    color: rgba(245, 247, 251, 0.9);
    font-size: clamp(1.35rem, 5.8vw, 1.7rem) !important;
    line-height: 1.38;
    letter-spacing: 0.035em;
  }

  .hero-desc {
    position: relative;
    margin-bottom: 27px;
    font-size: .96rem;
    line-height: 1.8;
  }

  .hero-tags {
    position: relative;
    gap: 8px;
  }

  .hero-tags span {
    padding: 9px 12px;
    font-size: .82rem;
  }

  .hero-actions {
    position: relative;
    margin-top: 24px;
    gap: 10px;
    justify-content: center;
  }

  .hero-actions .btn {
    width: calc(50% - 5px);
    min-height: 50px;
    padding: 0 8px;
    font-size: .9rem;
  }
}

/* Product showcase: one visual system from product overview to delivery. */
.section-product {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 6% 10%, rgba(106, 179, 186, 0.16), transparent 23%),
    radial-gradient(circle at 94% 30%, rgba(167, 139, 250, 0.13), transparent 27%),
    linear-gradient(180deg, #f8fbfc 0%, #f2f6fb 100%);
}

.section-product .section-heading {
  position: relative;
  max-width: 930px;
  margin-bottom: 42px;
}

.section-product .section-heading h2 {
  margin-bottom: 16px;
  color: #102642;
  font-size: clamp(2.4rem, 4.4vw, 4.15rem);
  line-height: 1.08;
}

.section-product .section-heading p {
  max-width: 650px;
  font-size: 1.08rem;
  line-height: 1.8;
}

.pain-function-grid {
  gap: 20px;
}

.system-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 300px;
  padding: 38px 40px 34px;
  border: 1px solid rgba(20, 58, 88, 0.1);
  border-radius: 28px;
  background: linear-gradient(135deg, #123451 0%, #1b6370 100%);
  box-shadow: 0 24px 48px rgba(27, 72, 96, 0.18);
}

.system-card.alt {
  background: linear-gradient(135deg, #202450 0%, #5b4a91 100%);
}

.system-card::before {
  content: "01";
  position: absolute;
  right: 28px;
  bottom: -30px;
  z-index: -1;
  color: rgba(255, 255, 255, 0.1);
  font-size: 11rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.1em;
}

.system-card.alt::before { content: "02"; }

.system-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
  text-align: left;
}

.system-badge {
  order: 2;
  flex: 0 0 auto;
  min-height: auto;
  padding: 8px 13px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  color: #f5ffff;
  font-size: .84rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.system-card h3 {
  margin: 0;
  max-width: 470px;
  color: #fff;
  font-size: clamp(1.65rem, 2.5vw, 2.25rem);
  line-height: 1.26;
}

.system-title-sub {
  margin-top: 12px;
  color: rgba(255,255,255,.72);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .03em;
  text-align: left;
}

.system-title-sub b {
  margin-left: 5px;
  color: #fff;
  font-weight: 700;
}

.system-desc {
  max-width: 510px;
  color: rgba(255,255,255,.82);
  font-size: 1.04rem;
  line-height: 1.85;
  text-align: left;
}

.system-modules-board {
  position: relative;
  margin: 8px 0 12px;
  padding: 30px 0 0;
}

.system-arrow-wrap {
  display: none;
}

.system-connection-copy {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  margin: 0 0 28px;
  color: #61738b;
  font-size: .9rem;
  font-weight: 600;
}

.system-connection-copy span:last-child { text-align: right; }

.system-connection-copy strong {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-radius: 999px;
  background: #e6f2f2;
  color: #164f5b;
  font-size: 1rem;
}

.system-connection-copy strong::before,
.system-connection-copy strong::after {
  content: "";
  width: 32px;
  height: 1px;
  background: #78aeb4;
}

.system-module-grid { gap: 20px; }
.system-module-column { gap: 20px; }

.system-module-card {
  min-height: 220px;
  padding: 27px 28px 25px 92px;
  border: 1px solid rgba(28, 58, 91, 0.12);
  border-radius: 22px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 12px 28px rgba(24, 49, 77, .07);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.system-module-card:hover {
  transform: translateY(-5px);
  border-color: rgba(74, 139, 151, .4);
  box-shadow: 0 20px 34px rgba(24, 49, 77, .12);
}

.module-side-tag {
  min-height: 28px;
  padding: 0 10px;
  background: #edf4f6;
  color: #54708b;
  font-size: .76rem;
}

.module-mark {
  left: 24px;
  top: 25px;
  width: 48px;
  height: 48px;
  font-size: 1.18rem;
}

.system-module-card h4 {
  margin: 13px 0 0;
  color: #183452;
  font-size: 1.42rem;
  line-height: 1.4;
}

.module-keyword-grid { margin-top: 17px; gap: 9px; }
.module-keyword {
  min-height: 42px;
  padding: 8px 10px;
  border-radius: 11px;
  background: #f0f5f9;
  color: #385675;
  font-size: .92rem;
  font-weight: 700;
}

.product-visual-card {
  padding: 38px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 10% 0%, rgba(100, 211, 213, .22), transparent 25%),
    radial-gradient(circle at 92% 0%, rgba(167, 139, 250, .2), transparent 27%),
    linear-gradient(135deg, #102743 0%, #10182f 100%);
  box-shadow: 0 26px 54px rgba(15, 30, 57, .2);
}

.product-visual-card::before { inset: 14px; border-radius: 20px; }
.product-visual-heading { margin-bottom: 24px; }
.product-visual-heading h3 { margin: 14px 0 0; font-size: 1.85rem; }
.product-visual-topline { gap: 24px; margin-bottom: 24px; }
.product-visual-topline::after { left: 12%; right: 12%; }

.visual-system-title {
  min-height: 86px;
  padding: 18px 22px;
  border-radius: 16px;
  font-size: 1rem;
  line-height: 1.65;
}

.visual-system-title span { color: rgba(221, 246, 249, .68); font-size: .85rem; }
.visual-arrow { width: 50px; height: 50px; font-size: 1.65rem; }
.visual-bridge-grid { gap: 14px; padding: 18px; border-radius: 20px; }
.visual-side, .visual-center { gap: 12px; }
.visual-center span { border-radius: 12px; font-size: 1.45rem; }
.bridge-card { grid-template-columns: 42px 1fr; gap: 12px; padding: 14px; border-radius: 14px; }
.bridge-badge { width: 38px; height: 38px; }
.bridge-icon { width: 20px; height: 20px; }
.bridge-card p { font-size: .93rem; line-height: 1.7; }

@media (max-width: 860px) {
  .system-card { min-height: auto; padding: 30px 28px; }
  .system-connection-copy { grid-template-columns: 1fr; gap: 9px; text-align: center; }
  .system-connection-copy span:last-child { text-align: center; }
  .system-connection-copy strong { justify-self: center; }
  .product-visual-card { padding: 26px 20px; }
}

@media (max-width: 560px) {
  .section-product .section-heading h2 { font-size: 2.35rem; }
  .system-head { gap: 16px; }
  .system-badge { padding: 7px 10px; font-size: .72rem; }
  .system-card h3 { font-size: 1.48rem; }
  .system-desc { font-size: .96rem; }
  .system-module-card { min-height: auto; padding: 21px 16px 20px 74px; }
  .module-mark { left: 16px; top: 20px; width: 42px; height: 42px; }
  .system-module-card h4 { font-size: 1.22rem; }
  .system-connection-copy strong { font-size: .88rem; padding: 9px 12px; }
  .system-connection-copy strong::before, .system-connection-copy strong::after { width: 14px; }
  .product-visual-heading h3 { font-size: 1.42rem; }
}