:root {
  --ink: #0d1b2a;
  --muted: #536476;
  --line: #d7e1ea;
  --paper: #f7fbfd;
  --white: #ffffff;
  --blue: #075da8;
  --blue-deep: #063d72;
  --cyan: #22b8c9;
  --green: #25a36f;
  --amber: #f0a63a;
  --shadow: 0 24px 70px rgba(8, 35, 63, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(7, 93, 168, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(7, 93, 168, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, #f9fcff 0%, #eef6fa 52%, #ffffff 100%);
  background-size: 56px 56px, 56px 56px, auto;
  font-family: "Aptos", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
  padding: 14px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(185, 205, 219, 0.7);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 12px 28px rgba(7, 93, 168, 0.25);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.15;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 34px);
  color: #22374b;
  font-size: 15px;
}

.nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav a:hover {
  color: var(--blue);
  border-color: var(--cyan);
}

.header-cta,
.button,
.contact-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 0;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
}

.header-cta,
.button.primary,
.contact-form button {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  box-shadow: 0 16px 34px rgba(7, 93, 168, 0.22);
}

.button.secondary {
  color: var(--blue-deep);
  border: 1px solid #b9d4e7;
  background: rgba(255, 255, 255, 0.72);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.92fr);
  align-items: center;
  gap: clamp(30px, 5vw, 76px);
  min-height: clamp(760px, calc(100vh - 78px), 940px);
  padding: clamp(48px, 8vw, 96px) clamp(20px, 5vw, 72px) 64px;
  overflow: hidden;
}

.hero > * {
  min-width: 0;
}

.hero-copy {
  max-width: 780px;
  min-width: 0;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--cyan);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(42px, 5.4vw, 72px);
  overflow-wrap: anywhere;
  word-break: break-word;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 52px);
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.25;
}

.lead {
  max-width: 700px;
  margin-bottom: 30px;
  color: #30485e;
  font-size: clamp(17px, 1.6vw, 20px);
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 150px));
  gap: 16px;
  margin: 0;
}

.hero-stats div {
  padding: 15px 18px;
  border-left: 3px solid var(--cyan);
  background: rgba(255, 255, 255, 0.7);
}

.hero-stats dt {
  color: var(--blue-deep);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
}

.hero-stats dd {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  position: relative;
  width: 100%;
  min-width: 0;
  min-height: 520px;
  border: 1px solid rgba(181, 206, 222, 0.75);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(225, 242, 248, 0.7)),
    radial-gradient(circle at 40% 30%, rgba(34, 184, 201, 0.18), transparent 46%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(7, 93, 168, 0.14);
  pointer-events: none;
}

#tomographyCanvas {
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 520px;
  display: block;
}

.visual-card {
  position: absolute;
  min-width: 190px;
  padding: 14px 16px;
  border: 1px solid rgba(180, 204, 219, 0.8);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 44px rgba(14, 54, 83, 0.14);
}

.visual-card span,
.visual-card strong {
  display: block;
}

.visual-card span {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.visual-card strong {
  color: var(--blue-deep);
}

.visual-card-top {
  top: 34px;
  right: 34px;
}

.visual-card-bottom {
  left: 34px;
  bottom: 34px;
}

.intro-band,
.section,
.contact,
.site-footer {
  margin: 0 clamp(20px, 5vw, 72px);
}

.intro-band {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: clamp(24px, 5vw, 80px);
  padding: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.intro-band p,
.section-copy p,
.contact p {
  color: #40586d;
  font-size: 17px;
}

.section {
  padding: clamp(66px, 8vw, 110px) 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.section-note {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
}

.tech-grid,
.app-grid,
.capability-grid,
.product-grid {
  display: grid;
  gap: 20px;
}

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

.product-card {
  display: grid;
  align-content: start;
  gap: 18px;
  min-height: 520px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 46px rgba(8, 35, 63, 0.08);
}

.featured-product {
  border-color: rgba(34, 184, 201, 0.6);
  background: linear-gradient(180deg, rgba(236, 250, 253, 0.94), rgba(255, 255, 255, 0.88));
}

.product-code {
  margin: 0;
  color: var(--blue);
  font-weight: 900;
  letter-spacing: 0.12em;
}

.mini-specs {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-top: 4px;
}

.mini-specs div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(7, 93, 168, 0.12);
}

.mini-specs dt {
  color: var(--blue-deep);
  font-weight: 900;
}

.mini-specs dd {
  margin: 0;
  color: var(--muted);
}

.device-render {
  position: relative;
  height: 190px;
  border: 1px solid rgba(7, 93, 168, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(218, 242, 249, 0.86)),
    repeating-linear-gradient(120deg, rgba(7, 93, 168, 0.08) 0 1px, transparent 1px 26px);
  overflow: hidden;
}

.device-render::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 112px;
  height: 112px;
  border: 16px solid var(--blue);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: inset 0 0 0 18px rgba(255, 255, 255, 0.8), 0 24px 44px rgba(7, 93, 168, 0.18);
}

.device-render::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(37, 163, 111, 0.42);
  transform: translate(-38%, -44%);
}

.device-render span {
  position: absolute;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 6px rgba(240, 166, 58, 0.16);
}

.device-render span:nth-child(1) {
  width: 22px;
  height: 22px;
  left: 22%;
  top: 58%;
}

.device-render span:nth-child(2) {
  width: 18px;
  height: 18px;
  right: 24%;
  top: 30%;
}

.device-render span:nth-child(3) {
  width: 16px;
  height: 16px;
  right: 32%;
  bottom: 22%;
  background: var(--cyan);
}

.emt-render::before {
  border-color: var(--green);
}

.emt-render::after {
  background: rgba(240, 166, 58, 0.46);
}

.eit-render::before {
  border-style: dotted;
  border-color: var(--blue-deep);
}

.large-render {
  min-height: 420px;
}

.large-render::before {
  width: 190px;
  height: 190px;
  border-width: 24px;
}

.large-render::after {
  width: 102px;
  height: 102px;
}

.evidence-layout {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(320px, 0.85fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
}

.lab-render {
  position: relative;
  min-height: 430px;
  border: 1px solid rgba(7, 93, 168, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.76), rgba(224, 244, 249, 0.88)),
    repeating-linear-gradient(90deg, rgba(7, 93, 168, 0.06) 0 1px, transparent 1px 38px);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.bench,
.tower,
.pipe,
.screen,
.daq {
  position: absolute;
  border: 1px solid rgba(7, 93, 168, 0.22);
  box-shadow: 0 18px 40px rgba(8, 35, 63, 0.12);
}

.bench {
  left: 12%;
  right: 12%;
  bottom: 54px;
  height: 44px;
  background: linear-gradient(180deg, #d7e8f0, #9ab5c8);
}

.tower {
  left: 18%;
  bottom: 98px;
  width: 74px;
  height: 170px;
  background: linear-gradient(180deg, #ffffff, #cfe5ef);
}

.pipe {
  left: 30%;
  top: 42%;
  width: 260px;
  height: 72px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(7, 93, 168, 0.18), rgba(34, 184, 201, 0.42), rgba(7, 93, 168, 0.12));
}

.screen {
  right: 14%;
  top: 18%;
  width: 190px;
  height: 130px;
  padding: 22px;
  background: #0d1b2a;
}

.screen span {
  display: block;
  height: 12px;
  margin-bottom: 14px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.daq {
  right: 18%;
  bottom: 104px;
  width: 150px;
  height: 72px;
  background: linear-gradient(180deg, #ffffff, #d7e5ed);
}

.evidence-list {
  display: grid;
  gap: 16px;
}

.evidence-list article {
  padding: 22px;
  border-left: 4px solid var(--cyan);
  background: rgba(255, 255, 255, 0.78);
}

.spec-section,
.collaboration {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: clamp(28px, 5vw, 64px);
  border-top: 1px solid var(--line);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 46px rgba(8, 35, 63, 0.08);
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--white);
  background: var(--blue-deep);
}

td:first-child {
  color: var(--blue-deep);
  font-weight: 900;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.75fr);
  align-items: center;
  gap: clamp(28px, 5vw, 80px);
  min-height: 620px;
  padding: clamp(48px, 8vw, 96px) clamp(20px, 5vw, 72px);
  background:
    linear-gradient(90deg, rgba(7, 93, 168, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(7, 93, 168, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
}

.product-visual {
  min-width: 0;
}

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

.product-detail-grid article {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 46px rgba(8, 35, 63, 0.08);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--cyan);
}

.system-strip {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: clamp(28px, 5vw, 64px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.strip-grid div {
  padding: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.strip-grid strong,
.strip-grid span {
  display: block;
}

.strip-grid strong {
  margin-bottom: 8px;
  color: var(--blue-deep);
}

.strip-grid span {
  color: var(--muted);
}

.product-cta {
  align-items: center;
}

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

.tech-card,
.app-grid article,
.capability-grid div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 18px 46px rgba(8, 35, 63, 0.08);
}

.tech-card {
  position: relative;
  min-height: 420px;
  padding: 34px;
  overflow: hidden;
}

.tech-card::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border: 26px solid rgba(34, 184, 201, 0.12);
  border-radius: 50%;
}

.tech-card.featured {
  color: var(--white);
  border-color: transparent;
  background: linear-gradient(150deg, #075da8, #07375e 62%, #0b2439);
}

.tech-card.featured p,
.tech-card.featured li {
  color: #d8ecf6;
}

.tech-code {
  display: inline-flex;
  margin-bottom: 26px;
  color: var(--cyan);
  font-size: 46px;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  line-height: 1;
}

.tech-card p {
  color: #486176;
}

.tech-card ul {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.tech-card li {
  color: #284158;
}

.tech-card li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--cyan);
  transform: translateY(-1px);
}

.split {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.section-copy {
  position: sticky;
  top: 110px;
}

.text-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--blue);
  font-weight: 800;
}

.text-link::after {
  content: "→";
  margin-left: 8px;
}

.process-list {
  display: grid;
  gap: 16px;
}

.process-step {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
}

.process-step span {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 50%;
  font-weight: 900;
}

.process-step p {
  margin-bottom: 0;
  color: var(--muted);
}

.applications {
  border-top: 1px solid var(--line);
}

.app-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.app-grid article {
  min-height: 230px;
  padding: 28px;
  border-top: 4px solid var(--blue);
}

.app-grid article:nth-child(2) {
  border-top-color: var(--green);
}

.app-grid article:nth-child(3) {
  border-top-color: var(--amber);
}

.app-grid article:nth-child(4) {
  border-top-color: var(--cyan);
}

.app-grid p,
.capability-grid span {
  color: var(--muted);
}

.capability {
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: clamp(28px, 5vw, 70px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.capability-grid div {
  padding: 22px;
}

.capability-grid strong,
.capability-grid span {
  display: block;
}

.capability-grid strong {
  margin-bottom: 10px;
  color: var(--blue-deep);
  font-size: 18px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(360px, 0.8fr);
  gap: clamp(30px, 6vw, 90px);
  align-items: start;
  padding: clamp(56px, 8vw, 92px);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(7, 93, 168, 0.96), rgba(6, 30, 53, 0.98)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 16px);
  border-radius: 8px;
}

.contact .section-kicker,
.contact h2,
.contact p {
  color: var(--white);
}

.contact .section-kicker::before {
  background: var(--white);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  color: var(--ink);
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.18);
}

.contact-form label,
.contact-form span {
  display: grid;
  gap: 8px;
}

.contact-form span {
  color: #31465a;
  font-size: 14px;
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cfdce6;
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--ink);
  background: #f8fbfd;
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 40px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 1080px) {
  .hero,
  .split,
  .capability,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .section-copy {
    position: static;
  }

  .tech-grid,
  .app-grid,
  .product-grid,
  .product-detail-grid,
  .strip-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .evidence-layout,
  .spec-section,
  .collaboration,
  .product-hero,
  .system-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    flex-wrap: wrap;
  }

  .header-cta {
    width: 100%;
  }

  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .hero-copy {
    width: calc(100vw - 64px);
    max-width: calc(100vw - 64px);
  }

  h1 {
    font-size: 33px;
    line-height: 1.18;
    word-break: break-all;
  }

  .eyebrow,
  .section-kicker {
    display: block;
    max-width: calc(100vw - 40px);
    font-size: 12px;
    letter-spacing: 0.08em;
    overflow-wrap: anywhere;
  }

  .lead,
  .intro-band p,
  .section-copy p,
  .contact p {
    font-size: 16px;
    word-break: break-all;
  }

  .lead {
    width: calc(100vw - 96px);
    max-width: calc(100vw - 96px);
  }

  .hero-stats,
  .intro-band,
  .tech-grid,
  .app-grid,
  .capability-grid,
  .product-grid,
  .product-detail-grid,
  .strip-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: grid;
  }

  .hero-visual,
  #tomographyCanvas {
    min-height: 380px;
  }

  .visual-card {
    position: static;
    margin: 0 18px 14px;
  }

  .process-step {
    grid-template-columns: 1fr;
  }

  .contact {
    margin-inline: 0;
    border-radius: 0;
    padding-inline: 20px;
  }

  .product-hero {
    min-height: auto;
    padding-top: 36px;
  }

  .product-card {
    min-height: auto;
  }

  .device-render {
    height: 160px;
  }

  .large-render,
  .lab-render {
    min-height: 320px;
  }

  .pipe {
    left: 20%;
    width: 210px;
  }

  .screen {
    right: 8%;
    width: 150px;
  }

  .site-footer {
    flex-direction: column;
  }
}