:root {
  --ink: #17212b;
  --muted: #5d6b78;
  --line: #dbe8e7;
  --surface: #f7fbfa;
  --surface-strong: #edf7f6;
  --white: #ffffff;
  --accent: #169f9a;
  --accent-dark: #0b6f72;
  --accent-soft: #dff5f3;
  --shadow: 0 24px 70px rgba(20, 87, 93, 0.12);
  --radius: 8px;
  --header-height: 76px;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

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

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: grid;
  grid-template-columns: minmax(390px, 1fr) auto auto;
  align-items: center;
  gap: 28px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  background: rgba(247, 251, 250, 0.9);
  border-bottom: 1px solid rgba(219, 232, 231, 0.7);
  backdrop-filter: blur(18px);
  transition: box-shadow 220ms ease, background 220ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 35px rgba(22, 63, 73, 0.08);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 26px;
  min-width: 0;
}

.brand-lockup img {
  width: auto;
  object-fit: contain;
}

.brand-lockup img:first-child {
  height: 29px;
  max-width: 210px;
}

.brand-lockup img:last-child {
  height: 43px;
  max-width: 210px;
}

.brand-divider {
  width: 1px;
  height: 38px;
  background: var(--line);
  flex: 0 0 auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #30414f;
  font-size: 15px;
  white-space: nowrap;
}

.main-nav a {
  position: relative;
  padding: 10px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
}

.section-band {
  padding: 104px 0;
}

.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 44px);
  background:
    linear-gradient(120deg, rgba(22, 159, 154, 0.1), transparent 45%),
    linear-gradient(180deg, #ffffff 0%, #f2faf9 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  align-items: start;
  gap: 56px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  min-height: min(70dvh, 650px);
}

.section-kicker {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 13px;
}

.hero-company-names {
  display: grid;
  gap: 8px;
  margin: 0 0 30px;
  color: var(--accent-dark);
  font-size: clamp(24px, 2.2vw, 34px);
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-company-names span + span {
  padding-left: 0;
  border-left: 0;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  max-width: 720px;
  font-size: clamp(40px, 5.2vw, 70px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 14px;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.24;
}

h4 {
  margin-bottom: 8px;
  font-size: 18px;
}

.hero-lead,
.section-heading p,
.contact-lead p,
.placeholder-card p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: auto;
  padding-top: 70px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:active {
  transform: translateY(1px);
}

.button.primary {
  color: #ffffff;
  background: var(--accent-dark);
  box-shadow: 0 16px 34px rgba(11, 111, 114, 0.2);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #095f62;
  box-shadow: 0 20px 40px rgba(11, 111, 114, 0.26);
}

.button.secondary {
  color: var(--accent-dark);
  background: var(--white);
  border: 1px solid var(--line);
}

.product-download {
  min-width: 150px;
  margin-top: 26px;
  border-color: rgba(11, 111, 114, 0.24);
  cursor: default;
}

.product-download:hover,
.product-download:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 12px 28px rgba(20, 87, 93, 0.1);
}

.hero-visual {
  position: relative;
  padding: 44px;
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(225, 247, 245, 0.7));
  border: 1px solid rgba(219, 232, 231, 0.9);
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  filter: drop-shadow(0 28px 36px rgba(31, 73, 77, 0.14));
}

.hero-visual-column {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  margin-top: 34px;
}

.hero-image-card {
  position: relative;
  overflow: hidden;
  border-radius: 36px;
  background: #ffffff;
  box-shadow: 0 22px 60px rgba(20, 87, 93, 0.14);
}

.hero-image-card img {
  width: 100%;
  height: min(44dvh, 420px);
  min-height: 320px;
  object-fit: cover;
  object-position: center;
  border-radius: 36px;
}

.coagulation-animation {
  position: relative;
  width: 76.5%;
  margin-left: auto;
  height: min(62dvh, 560px);
  min-height: 520px;
  overflow: hidden;
  border-radius: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
  isolation: isolate;
}

.coagulation-animation::before {
  display: none;
}

.coagulation-head {
  position: absolute;
  top: 46px;
  left: 40px;
  display: grid;
  gap: 2px;
  color: var(--accent-dark);
  z-index: 3;
}

.coagulation-head span {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.coagulation-head strong {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.15;
}

.coagulation-flow {
  position: absolute;
  inset: 86px 4px 40px;
  width: calc(100% - 8px);
  height: calc(100% - 126px);
  overflow: visible;
}

.dynamic-factor-links {
  pointer-events: none;
}

.factor-link,
.fibrin-mesh path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.factor-link {
  stroke: url(#flowGradient);
  stroke-width: 3.5;
  stroke-dasharray: 8 13;
  stroke-dashoffset: var(--link-length, 160);
  filter: url(#flowGlow);
  opacity: 0.58;
  animation:
    factorLinkDraw 760ms cubic-bezier(0.16, 1, 0.3, 1) both,
    factorLinkDrift 3.2s linear infinite 760ms;
}

.factor-link.is-fading {
  animation: factorLinkFade 260ms ease forwards;
}

.fibrin-mesh path {
  stroke: rgba(11, 111, 114, 0.58);
  stroke-width: 2;
  stroke-dasharray: 180;
  stroke-dashoffset: 180;
  opacity: 0;
  animation: fibrinWeave 5.6s ease-in-out infinite;
}

.factor-chip {
  position: absolute;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.7), rgba(223, 245, 243, 0.46)),
    rgba(237, 247, 246, 0.54);
  border: 1px solid rgba(22, 159, 154, 0.16);
  color: var(--accent-dark);
  box-shadow: 0 12px 26px rgba(20, 87, 93, 0.1);
  backdrop-filter: blur(10px);
  transform: translateZ(0);
  transition: transform 850ms ease, background 850ms ease, border-color 850ms ease, color 850ms ease, box-shadow 850ms ease;
}

.factor-chip span {
  position: relative;
  z-index: 1;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
}

.factor-chip.is-active,
.coagulation-core.is-active,
.thrombin-product.is-active {
  background: var(--accent-dark);
  border-color: rgba(11, 111, 114, 0.14);
  color: #ffffff;
  box-shadow: 0 18px 38px rgba(11, 111, 114, 0.26);
}

.factor-chip.is-active {
  transform: translateY(-4px) scale(1.08);
}

.factor-xii { left: 7%; top: 25%; }
.factor-xi { left: 20%; top: 36%; }
.factor-ix { left: 30%; top: 48%; }
.factor-viii { left: 16%; top: 70%; }
.factor-vii { right: 21%; top: 23%; }
.factor-iii { right: 6%; top: 36%; }
.factor-iv { right: 31%; top: 44%; }
.factor-v { right: 7%; top: 66%; }
.factor-x { left: 48%; top: 29%; }
.factor-i { right: 40%; bottom: 10%; }
.factor-xiii { right: 15%; bottom: 12%; }
.factor-vi { left: 5%; bottom: 17%; }

.coagulation-core {
  position: absolute;
  left: 41%;
  top: 63%;
  display: grid;
  place-items: center;
  width: 78px;
  height: 78px;
  padding: 9px;
  border-radius: 50%;
  color: var(--accent-dark);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.72), rgba(223, 245, 243, 0.5)),
    rgba(237, 247, 246, 0.58);
  border: 1px solid rgba(22, 159, 154, 0.2);
  box-shadow: 0 20px 44px rgba(20, 87, 93, 0.15);
  transform: translate(-50%, -50%);
  transition: background 850ms ease, color 850ms ease, box-shadow 850ms ease;
  z-index: 2;
}

.coagulation-core span {
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
}

.coagulation-core strong {
  color: inherit;
  font-size: 10px;
  line-height: 1.15;
}

.thrombin-product {
  position: absolute;
  left: 68%;
  top: 63%;
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  padding: 9px;
  border-radius: 50%;
  color: var(--accent-dark);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.72), rgba(223, 245, 243, 0.5)),
    rgba(237, 247, 246, 0.58);
  border: 1px solid rgba(22, 159, 154, 0.2);
  box-shadow: 0 22px 46px rgba(20, 87, 93, 0.13);
  transform: translate(-50%, -50%);
  transition: background 850ms ease, color 850ms ease, box-shadow 850ms ease;
  z-index: 2;
}

.thrombin-product span {
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
}

.thrombin-product strong {
  color: inherit;
  font-size: 10px;
  line-height: 1.15;
}

@keyframes factorLinkDraw {
  from {
    stroke-dashoffset: var(--link-length, 160);
    opacity: 0;
  }
  to {
    stroke-dashoffset: 0;
    opacity: 0.58;
  }
}

@keyframes factorLinkDrift {
  to {
    stroke-dashoffset: -42;
  }
}

@keyframes factorLinkFade {
  to {
    opacity: 0;
  }
}

@keyframes fibrinWeave {
  0%,
  55% {
    stroke-dashoffset: 180;
    opacity: 0;
  }
  76%,
  92% {
    stroke-dashoffset: 0;
    opacity: 0.88;
  }
  100% {
    stroke-dashoffset: -20;
    opacity: 0.2;
  }
}

.hero-panel {
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 24px;
  display: grid;
  gap: 2px;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.hero-panel strong {
  font-size: 17px;
}

.hero-panel span {
  color: var(--muted);
  font-size: 14px;
}

.products {
  background: var(--white);
}

.section-heading {
  margin-bottom: 50px;
}

.product-block {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: 48px;
  align-items: center;
  padding: 54px 0;
  border-top: 1px solid var(--line);
}

.product-block.reverse {
  grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr);
}

.product-block.poct-block {
  grid-template-columns: 1fr;
}

.product-block.poct-coag-block {
  grid-template-columns: minmax(380px, 0.95fr) minmax(0, 1.05fr);
}

.product-block.ateg-block {
  grid-template-columns: minmax(520px, 0.92fr) minmax(0, 1.08fr);
}

.product-block.poct-video-block {
  grid-template-columns: minmax(0, 900px);
  justify-content: start;
  align-items: start;
}

.product-block.reagents-block {
  grid-template-columns: minmax(0, 900px);
  align-items: start;
}

.product-block.reverse .product-media {
  order: 2;
}

.product-block.reverse .product-copy {
  order: 1;
}

.product-block.poct-block .product-copy {
  order: initial;
}

.product-media {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
}

.product-side {
  display: grid;
  gap: 22px;
  align-self: start;
}

.product-media img {
  max-height: 440px;
  object-fit: contain;
}

.tall-media img {
  max-height: 520px;
}

.product-block > .product-media.tall-media {
  min-height: 360px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.product-block > .product-media.tall-media img {
  width: min(100%, 620px);
  max-height: 580px;
}

.poct-media {
  background: #101820;
}

.ateg-media img {
  width: min(126%, 840px);
  max-width: none;
  max-height: 760px;
}

.ateg-side .product-media {
  min-height: 470px;
  padding: 0;
  align-items: flex-start;
  background: transparent;
  border: 0;
  overflow: visible;
}

.product-main-side .product-media {
  min-height: 348px;
  padding: 0;
  align-items: center;
  background: transparent;
  border: 0;
}

.product-main-side .product-media img {
  width: min(100%, 560px);
  max-height: 430px;
}

.product-main-side .advantage-card {
  margin-top: -18px;
}

.product-main-side .product-download {
  justify-self: start;
  margin-top: 0;
}

.product-main-side .poct-main-media {
  min-height: 300px;
}

.product-main-side .poct-main-media img {
  width: min(100%, 380px);
  max-height: 360px;
}

.advantage-card {
  padding: 26px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}

.ateg-side .advantage-card {
  margin-top: -36px;
}

.ateg-side .product-download {
  justify-self: start;
  margin-top: 0;
}

.advantage-card h4 {
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: 24px;
}

.poct-media img {
  max-height: 380px;
}

.product-index {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent);
  font-size: clamp(42px, 5vw, 72px);
  line-height: 0.9;
  font-weight: 900;
  letter-spacing: 0;
  opacity: 0.22;
}

.product-copy p,
.company-story p,
.poct-layout p,
.company-contact p,
.award-panel p {
  color: var(--muted);
}

.spec-grid {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px 18px;
  margin-top: 24px;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--surface-strong);
}

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

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.feature-list span {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font-weight: 700;
}

.metric-row {
  display: grid;
  grid-template-columns:
    minmax(180px, 1.15fr)
    minmax(128px, 0.82fr)
    minmax(128px, 0.82fr)
    minmax(170px, 1.08fr);
  gap: 12px;
  margin: 26px 0;
}

.metric-row div {
  padding: 18px 16px;
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.metric-row strong {
  display: block;
  color: var(--accent-dark);
  font-size: clamp(20px, 1.9vw, 26px);
  line-height: 1;
  white-space: nowrap;
}

.metric-row span {
  color: var(--muted);
  font-size: 14px;
}

.patent-images img {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.teg-info-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 16px;
  margin-top: 26px;
}

.ateg-block .teg-info-grid {
  grid-template-columns: minmax(340px, 1fr) minmax(340px, 1fr);
}

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

.teg-info-card h4 {
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: 22px;
}

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

.teg-use-list div {
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}

.teg-use-list strong,
.department-list strong {
  display: block;
  color: var(--ink);
  font-size: 16px;
}

.teg-use-list p,
.department-list span {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.department-list span {
  display: block;
}

.poct-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin: 24px 0;
}

.poct-layout > div {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.poct-card-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 18px;
}

.poct-card-header h4 {
  margin-bottom: 0;
}

.poct-card-header .product-download {
  min-height: 40px;
  min-width: 140px;
  margin-top: 0;
}

.ac-lite-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 0;
}

.ac-lite-gallery img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--white);
}

.product-video {
  width: 100%;
  max-height: 520px;
  border-radius: var(--radius);
  background: #0e171b;
  border: 1px solid #0e171b;
}

.poct-video-copy {
  max-width: 900px;
}

.reagents-copy p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.reagent-lines {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 16px;
  width: min(100%, 900px);
}

.reagent-card {
  min-height: 100%;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(237, 247, 246, 0.78)),
    var(--surface);
  box-shadow: 0 14px 40px rgba(20, 87, 93, 0.06);
}

.reagent-card h4 {
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: 22px;
}

.reagent-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.reagent-card li {
  position: relative;
  padding: 12px 14px 12px 34px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(219, 232, 231, 0.78);
  color: #30414f;
  font-weight: 700;
  line-height: 1.45;
}

.reagent-card li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 20px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(22, 159, 154, 0.12);
}

.poct-video-copy p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.poct-video-block .product-video {
  display: block;
  max-height: 560px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-preview {
  position: relative;
  width: min(100%, 900px);
  margin-top: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(10, 86, 91, 0.22), rgba(255, 255, 255, 0.08)),
    #0e171b;
  box-shadow: 0 22px 52px rgba(7, 36, 40, 0.16);
}

.video-preview::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 28, 31, 0.1), rgba(4, 28, 31, 0.36));
  z-index: 1;
}

.video-preview.is-playing::before,
.video-preview.is-playing .video-play-hint {
  opacity: 0;
  pointer-events: none;
}

.video-play-hint {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  gap: 14px;
  align-content: center;
  color: var(--white);
  background: radial-gradient(circle at center, rgba(7, 70, 76, 0.1), rgba(5, 30, 34, 0.28));
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  letter-spacing: 0;
  transition: opacity 180ms ease, background 180ms ease;
}

.video-play-hint:hover,
.video-play-hint:focus-visible {
  background: radial-gradient(circle at center, rgba(9, 95, 98, 0.18), rgba(5, 30, 34, 0.34));
}

.video-play-icon {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.22);
  position: relative;
}

.video-play-icon::after {
  content: "";
  position: absolute;
  left: 31px;
  top: 24px;
  width: 0;
  height: 0;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 22px solid var(--accent-dark);
}

.section-cta {
  display: grid;
  grid-template-columns: minmax(0, 760px);
  gap: 16px;
  align-items: start;
  margin-top: 54px;
  padding: 0 0 12px;
  background: transparent;
  border: 0;
}

.section-cta h3 {
  margin-bottom: 0;
  font-size: 28px;
}

.section-cta p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.section-cta-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 280px));
  gap: 14px;
  align-items: center;
  margin-top: 8px;
}

.section-cta-actions .button {
  width: 100%;
}

.company {
  background:
    linear-gradient(180deg, #f7fbfa 0%, #ffffff 100%);
}

.company-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 36px;
}

.company-grid .section-heading,
.company-story {
  grid-column: 1 / -1;
}

.company-story {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-top: 8px;
}

.company-story-card {
  position: relative;
  padding: 22px 26px 22px 30px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(20, 87, 93, 0.05);
}

.company-story-card::before {
  content: "";
  position: absolute;
  top: 22px;
  bottom: 22px;
  left: 0;
  width: 4px;
  background: var(--accent);
}

.company-story-card h3 {
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: 22px;
}

.company-story-card p {
  max-width: 980px;
  margin-bottom: 0;
  font-size: 18px;
  line-height: 1.8;
}

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

.proof-grid div {
  min-height: 120px;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(20, 87, 93, 0.06);
}

.proof-grid div:last-child {
  grid-column: 1 / -1;
}

.proof-grid strong {
  display: block;
  color: var(--accent-dark);
  font-size: 46px;
  line-height: 1;
}

.proof-grid span {
  color: var(--muted);
  font-weight: 700;
}

.award-panel {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(20, 87, 93, 0.06);
}

.patent-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: start;
  margin-top: 22px;
}

.patent-images img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  padding: 10px;
}

.contact {
  background: #eef8f7;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 18px 28px;
  align-items: start;
}

.contact-lead {
  padding: 36px;
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.95), rgba(223, 245, 243, 0.72)),
    var(--white);
  border: 1px solid var(--line);
}

.sales-card,
.company-contact {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(20, 87, 93, 0.06);
}

.sales-card {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.sales-card a {
  display: grid;
  gap: 2px;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface-strong);
  border: 1px solid transparent;
}

.sales-card a:hover,
.sales-card a:focus-visible {
  border-color: var(--accent);
}

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

.sales-card strong {
  color: var(--accent-dark);
  font-size: 24px;
  line-height: 1.25;
  word-break: break-word;
}

.company-contact a {
  color: var(--accent-dark);
  font-weight: 800;
}

.wechat-qrcode {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.wechat-qrcode span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.wechat-qrcode strong {
  display: block;
  color: var(--accent-dark);
  font-size: 18px;
  line-height: 1.35;
}

.wechat-qrcode img {
  width: 116px;
  height: 116px;
  flex: 0 0 auto;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 6px;
}

.company-contact-list {
  grid-column: 2;
  display: grid;
  gap: 36px;
}

.site-footer {
  padding: 28px 0;
  color: #61717b;
  background: #ffffff;
  border-top: 1px solid var(--line);
  font-size: 14px;
  text-align: center;
}

.placeholder-main {
  min-height: calc(100dvh - 92px);
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, #ffffff, #eaf8f7);
}

.placeholder-card {
  max-width: 820px;
  padding: 56px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.placeholder-card h1 {
  font-size: clamp(38px, 5vw, 64px);
}

.reveal {
  opacity: 0;
  filter: blur(10px);
  transform: translateY(56px) scale(0.965);
  transform-origin: center top;
  transition:
    opacity 920ms cubic-bezier(0.16, 1, 0.3, 1),
    filter 920ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 920ms cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, filter, transform;
}

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

.reveal.is-visible.product-block .product-side,
.reveal.is-visible.product-block .product-copy,
.reveal.is-visible.company-story .company-story-card,
.reveal.is-visible.proof-grid div,
.reveal.is-visible.award-panel .patent-images img,
.reveal.is-visible .sales-card a,
.reveal.is-visible.company-contact {
  animation: revealLift 780ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.reveal.is-visible.product-block .product-copy {
  animation-delay: 130ms;
}

.reveal.is-visible.product-block .metric-row div,
.reveal.is-visible.product-block .teg-info-card,
.reveal.is-visible.company-story .company-story-card:nth-child(2),
.reveal.is-visible.proof-grid div:nth-child(2),
.reveal.is-visible.award-panel .patent-images img:nth-child(2),
.reveal.is-visible .sales-card a:nth-child(2) {
  animation-delay: 180ms;
}

.reveal.is-visible.product-block .metric-row div:nth-child(2),
.reveal.is-visible.product-block .teg-info-card:nth-child(2),
.reveal.is-visible.proof-grid div:nth-child(3),
.reveal.is-visible .sales-card a:nth-child(3) {
  animation-delay: 260ms;
}

.reveal.is-visible.product-block .metric-row div:nth-child(3),
.reveal.is-visible.proof-grid div:nth-child(4) {
  animation-delay: 340ms;
}

.reveal.is-visible.product-block .metric-row div:nth-child(4),
.reveal.is-visible.proof-grid div:nth-child(5) {
  animation-delay: 420ms;
}

@keyframes revealLift {
  0% {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(34px) scale(0.975);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0) scale(1);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

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

  .reveal.is-visible.product-block .product-side,
  .reveal.is-visible.product-block .product-copy,
  .reveal.is-visible.company-story .company-story-card,
  .reveal.is-visible.proof-grid div,
  .reveal.is-visible.award-panel .patent-images img,
  .reveal.is-visible .sales-card a,
  .reveal.is-visible.company-contact {
    animation: none;
  }
}

@media (max-width: 980px) {
  :root {
    --header-height: 112px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    height: var(--header-height);
    gap: 8px 16px;
    padding: 12px 20px;
  }

  .brand-lockup {
    grid-column: 1 / 2;
  }

  .brand-lockup img {
    height: auto;
  }

  .brand-lockup img:first-child {
    height: 26px;
  }

  .brand-lockup img:last-child {
    height: 36px;
  }

  .main-nav {
    grid-column: 1 / -1;
    justify-content: center;
    gap: 20px;
    order: 3;
  }

  .lang-switch {
    justify-self: end;
  }

  .hero-grid,
  .product-block,
  .product-block.reverse,
  .product-block.ateg-block,
  .product-block.poct-coag-block,
  .product-block.reagents-block,
  .company-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .product-block.reverse .product-media,
  .product-block.reverse .product-copy {
    order: initial;
  }

  .contact-lead {
    grid-row: auto;
  }

  .company-contact-list {
    grid-column: auto;
  }

  .ateg-side .advantage-card {
    margin-top: 0;
  }

  .ateg-side .product-download {
    margin-top: 26px;
  }

  .ateg-media img {
    width: 100%;
    max-width: 100%;
  }

  .company-story,
  .poct-layout,
  .teg-info-grid,
  .ac-lite-gallery,
  .reagent-lines {
    grid-template-columns: 1fr;
  }

  .ateg-block .teg-info-grid,
  .product-info-grid {
    grid-template-columns: minmax(0, 1fr);
  }

}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    padding: 10px 14px;
  }

  .brand-lockup {
    gap: 8px;
  }

  .brand-lockup img {
    height: auto;
  }

  .brand-lockup img:first-child {
    height: 22px;
    max-width: 142px;
  }

  .brand-lockup img:last-child {
    height: 30px;
    max-width: 142px;
  }

  .brand-divider {
    height: 20px;
  }

  .main-nav {
    gap: 14px;
    font-size: 14px;
  }

  .lang-switch {
    min-width: 40px;
    height: 30px;
  }

  .section-band {
    padding: 74px 0;
  }

  .hero {
    padding-top: calc(var(--header-height) + 28px);
  }

  .hero-grid {
    gap: 32px;
  }

  .hero-copy {
    min-height: auto;
  }

  .hero-visual-column {
    margin-top: 0;
  }

  .hero-company-names {
    font-size: 21px;
  }

  .hero-company-names span + span {
    padding-top: 0;
    border-top: 0;
  }

  .hero-visual,
  .contact-lead,
  .sales-card,
  .company-contact,
  .award-panel,
  .placeholder-card {
    padding: 22px;
  }

  .hero-panel {
    position: static;
    margin-top: 14px;
  }

  .hero-image-card img {
    min-height: 260px;
    height: 320px;
  }

  .coagulation-animation {
    width: 100%;
    min-height: 420px;
    height: 420px;
    border-radius: 0;
    background: transparent;
  }

  .coagulation-head {
    top: 30px;
    left: 22px;
  }

  .coagulation-head strong {
    font-size: 16px;
  }

  .coagulation-flow {
    inset: 76px 0 12px;
    width: calc(100% - 16px);
    height: calc(100% - 88px);
  }

  .factor-chip {
    width: 44px;
    height: 44px;
  }

  .factor-chip span {
    font-size: 12px;
  }

  .coagulation-core {
    left: 38%;
    top: 62%;
    width: 64px;
    height: 64px;
    padding: 7px;
  }

  .coagulation-core span {
    font-size: 18px;
  }

  .coagulation-core strong {
    font-size: 9px;
  }

  .thrombin-product {
    left: 71%;
    top: 62%;
    width: 68px;
    height: 68px;
    padding: 7px;
  }

  .thrombin-product span {
    font-size: 18px;
  }

  .thrombin-product strong {
    font-size: 9px;
  }

  .factor-xii { left: 4%; top: 27%; }
  .factor-xi { left: 19%; top: 40%; }
  .factor-ix { left: 28%; top: 51%; }
  .factor-viii { left: 10%; top: 70%; }
  .factor-vii { right: 17%; top: 26%; }
  .factor-iii { right: 4%; top: 41%; }
  .factor-iv { right: 30%; top: 47%; }
  .factor-v { right: 5%; top: 66%; }
  .factor-x { left: 48%; top: 31%; }
  .factor-i { right: 40%; bottom: 10%; }
  .factor-xiii { right: 12%; bottom: 12%; }
  .factor-vi { left: 4%; bottom: 18%; }

  .hero-actions {
    margin-top: 34px;
    padding-top: 0;
  }

  .product-block {
    gap: 26px;
    padding: 38px 0;
  }

  .product-media {
    min-height: 230px;
    padding: 18px;
  }

  .feature-list,
  .metric-row,
  .proof-grid,
  .section-cta {
    grid-template-columns: 1fr;
  }

  .section-cta {
    align-items: start;
    padding: 0;
  }

  .section-cta-actions {
    grid-template-columns: 1fr;
  }

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

  .sales-card strong {
    font-size: 20px;
  }

  .poct-card-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

}