:root {
  --blue-900: #0d2f5f;
  --blue-800: #15499a;
  --blue-700: #1e62b7;
  --orange-600: #f05a28;
  --orange-500: #ff7a2b;
  --steel-950: #182230;
  --steel-700: #344256;
  --steel-500: #69778a;
  --steel-200: #dce4ee;
  --steel-100: #edf2f7;
  --paper: #ffffff;
  --wash: #f6f8fb;
  --shadow: 0 22px 60px rgba(13, 47, 95, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--steel-950);
  background: var(--wash);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.6;
}

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

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

.container {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.top-line {
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.top-line__inner,
.top-line__links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.top-line__inner {
  min-height: 38px;
}

.top-line strong {
  color: #fff;
  letter-spacing: 0.02em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(21, 73, 154, 0.12);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-800), var(--orange-600));
  border-radius: 6px;
  font-weight: 800;
}

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

.brand strong {
  font-size: 22px;
  line-height: 1.1;
}

.brand em {
  color: var(--steel-500);
  font-size: 12px;
  font-style: normal;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
  font-weight: 700;
}

.nav__menu a {
  color: var(--steel-700);
}

.nav__menu a:hover {
  color: var(--blue-800);
}

.nav__cta {
  padding: 10px 16px;
  color: #fff !important;
  background: var(--orange-600);
  border-radius: 4px;
}

.nav__toggle {
  display: none;
  border: 0;
  color: #fff;
  background: var(--blue-800);
  border-radius: 4px;
  padding: 9px 12px;
  font-weight: 700;
}

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(110deg, rgba(13, 47, 95, 0.98) 0%, rgba(13, 47, 95, 0.92) 48%, rgba(21, 73, 154, 0.68) 100%),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 16px);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -8% 0 auto;
  width: 58%;
  height: 14px;
  background: repeating-linear-gradient(90deg, var(--orange-600) 0 48px, #22334b 48px 96px);
  opacity: 0.85;
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
  gap: 54px;
  align-items: center;
  min-height: 660px;
  padding: 78px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--orange-500);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero__lead {
  max-width: 690px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 800;
  cursor: pointer;
}

.button--primary {
  color: #fff;
  background: var(--orange-600);
  box-shadow: 0 12px 26px rgba(240, 90, 40, 0.24);
}

.button--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.32);
}

.button--phone {
  gap: 9px;
  color: #fff;
  background: rgba(240, 90, 40, 0.14);
  border-color: rgba(255, 122, 43, 0.78);
  box-shadow: 0 12px 26px rgba(240, 90, 40, 0.16);
}

.button--phone span {
  color: #ffb08a;
  font-size: 17px;
  line-height: 1;
}

.button--phone:hover {
  color: #fff;
  background: var(--orange-600);
  border-color: var(--orange-600);
}

.button--phone:hover span {
  color: #fff;
}

.button--soft {
  color: var(--blue-900);
  background: #fff;
  border-color: #fff;
}

.button--soft-dark {
  color: var(--blue-900);
  background: #eef5ff;
  border-color: #d7e5f8;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 670px;
  margin: 44px 0 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
}

.hero__stats div {
  padding: 20px;
  background: rgba(255, 255, 255, 0.06);
}

.hero__stats dt {
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
}

.hero__stats dd {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.hero-card {
  position: relative;
  min-height: 440px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03)),
    radial-gradient(circle at 64% 32%, rgba(255, 122, 43, 0.4), transparent 28%);
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 38px;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.16);
  pointer-events: none;
}

.hero-card__photo {
  position: absolute;
  inset: 86px 30px 92px;
  margin: 0;
  overflow: hidden;
  background: #102542;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  box-shadow: 0 24px 44px rgba(0, 0, 0, 0.24);
}

.hero-card__photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(13, 47, 95, 0.08), rgba(13, 47, 95, 0.28)),
    linear-gradient(90deg, rgba(255, 122, 43, 0.2), transparent 34%);
  pointer-events: none;
}

.hero-card__photo img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 48% 50%;
}

.hero-card__photo--blue {
  inset: 108px 56px 94px;
  padding: 10px 18px;
  background: #173f72;
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.08);
}

.hero-card__photo--blue::after {
  background:
    linear-gradient(90deg, rgba(50, 91, 132, 0.62), transparent 16%, transparent 84%, rgba(50, 91, 132, 0.62)),
    linear-gradient(180deg, rgba(50, 91, 132, 0.46), transparent 22%, transparent 76%, rgba(50, 91, 132, 0.52));
}

.hero-card__photo--blue img {
  object-fit: contain;
  object-position: center;
  filter: saturate(1.02) contrast(1.01);
}

.machine__body,
.machine__hopper,
.machine__spring,
.machine__cabinet,
.machine__motor,
.machine__tray,
.machine__chassis,
.machine__pipe,
.machine__wheel {
  position: absolute;
  display: block;
}

.machine__body {
  left: 20%;
  bottom: 68px;
  width: 24%;
  height: 44px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.16) 0 14%, transparent 14% 100%),
    linear-gradient(180deg, #1e62b7, #0d4aa1);
  border: 3px solid #123f7c;
  border-radius: 6px;
  box-shadow: inset 0 -8px 0 rgba(0, 0, 0, 0.15);
}

.machine__body::before {
  content: "";
  position: absolute;
  left: 9%;
  right: 9%;
  top: 13px;
  height: 6px;
  background: rgba(255, 255, 255, 0.32);
  border-radius: 999px;
}

.machine__hopper {
  left: 16%;
  bottom: 108px;
  width: 34%;
  height: 58px;
  background: linear-gradient(180deg, #ff4d35 0%, #dd241c 62%, #a91417 100%);
  border-radius: 50% 50% 14px 14px / 24% 24% 16px 16px;
  box-shadow:
    inset 0 9px 0 rgba(255, 255, 255, 0.18),
    inset 0 -9px 0 rgba(0, 0, 0, 0.14),
    0 8px 0 rgba(13, 47, 95, 0.18);
}

.machine__hopper::after {
  content: "";
  position: absolute;
  left: -5%;
  right: -5%;
  top: 7px;
  height: 14px;
  background: linear-gradient(180deg, #ff6a4a, #e92820);
  border-radius: 50%;
  box-shadow: 0 4px 0 rgba(99, 12, 22, 0.22);
}

.machine__spring {
  bottom: 78px;
  width: 8px;
  height: 60px;
  background:
    repeating-linear-gradient(180deg, #f3f7fb 0 4px, #6c7887 4px 8px);
  border-radius: 999px;
  box-shadow: 0 0 0 2px rgba(13, 47, 95, 0.18);
}

.machine__spring--left {
  left: 19%;
}

.machine__spring--right {
  left: 45%;
}

.machine__tray {
  left: 11%;
  bottom: 52px;
  width: 14%;
  height: 28px;
  background: linear-gradient(135deg, #111c2c, #324154);
  clip-path: polygon(0 42%, 72% 42%, 100% 100%, 0 100%);
  border-radius: 4px 4px 0 0;
}

.machine__cabinet {
  right: 9%;
  bottom: 66px;
  width: 38%;
  height: 86px;
  background: linear-gradient(135deg, #1591ff, #0864c7);
  border: 3px solid #0b4c95;
  border-radius: 5px;
  box-shadow: inset 0 -10px 0 rgba(0, 0, 0, 0.12);
}

.machine__cabinet::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 18px;
  width: 44px;
  height: 30px;
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.48) 0 5px, transparent 5px 12px);
}

.machine__cabinet::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 16px;
  bottom: 12px;
  width: 40%;
  border-left: 2px solid rgba(13, 47, 95, 0.42);
  box-shadow: inset -4px 0 0 rgba(255, 255, 255, 0.12);
}

.machine__motor {
  right: 29%;
  bottom: 78px;
  width: 48px;
  height: 48px;
  background: radial-gradient(circle, #6eb7cb 0 38%, #163142 39% 58%, #0b1826 59%);
  border: 3px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  z-index: 2;
}

.machine__chassis {
  left: 12%;
  right: 9%;
  bottom: 42px;
  height: 18px;
  background: linear-gradient(180deg, #172233, #090f18);
  border-radius: 2px;
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.16);
}

.machine__pipe {
  left: 48%;
  bottom: 106px;
  width: 8%;
  height: 48px;
  background: linear-gradient(90deg, #f0c649, #d89427);
  border-radius: 999px;
  transform: rotate(10deg);
  box-shadow: inset -4px 0 0 rgba(0, 0, 0, 0.14);
}

.machine__wheel {
  bottom: 12px;
  width: 42px;
  height: 42px;
  border: 9px solid #1d2938;
  border-radius: 50%;
  background: #b9c4d1;
}

.machine__wheel--one {
  left: 24%;
}

.machine__wheel--two {
  right: 21%;
}

.hero-card__panel {
  position: absolute;
  left: 30px;
  right: 30px;
  top: 30px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  background: rgba(13, 47, 95, 0.72);
  border-left: 4px solid var(--orange-600);
}

.hero-card__panel strong,
.hero-card__panel span {
  display: block;
}

.hero-card__panel span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

.hero-card__tags {
  position: absolute;
  left: 30px;
  right: 30px;
  bottom: 28px;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-card__tags li {
  padding: 10px 8px;
  text-align: center;
  color: var(--blue-900);
  background: rgba(255, 255, 255, 0.88);
  border-radius: 4px;
  font-weight: 900;
}

.quick-contact {
  background: var(--paper);
  border-bottom: 1px solid var(--steel-200);
}

.quick-contact__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  min-height: 88px;
}

.quick-contact strong {
  color: var(--blue-800);
  font-size: 20px;
}

.quick-contact span {
  color: var(--steel-500);
}

.quick-contact a {
  color: #fff;
  background: var(--blue-800);
  border-radius: 4px;
  padding: 10px 16px;
  font-weight: 800;
}

.section {
  padding: 86px 0;
}

.section__head {
  max-width: 740px;
  margin-bottom: 36px;
}

.section__head h2,
.strength h2,
.service h2,
.contact h2 {
  margin: 0;
  color: var(--blue-900);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.16;
}

.section__head p:not(.eyebrow),
.strength p,
.contact p {
  color: var(--steel-500);
  font-size: 17px;
}

.product-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
  padding: 14px;
  background: var(--paper);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
}

.product-toolbar label {
  color: var(--blue-900);
  font-weight: 900;
  white-space: nowrap;
}

.product-toolbar input {
  width: 100%;
  border: 1px solid var(--steel-200);
  border-radius: 4px;
  padding: 12px 14px;
  font: inherit;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  position: relative;
  min-height: 300px;
  padding: 18px 18px 24px;
  background: var(--paper);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(13, 47, 95, 0.06);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 98, 183, 0.32);
  box-shadow: var(--shadow);
}

.product-card.is-hidden {
  display: none;
}

.product-card__index {
  position: absolute;
  top: 132px;
  right: 18px;
  color: rgba(21, 73, 154, 0.14);
  font-size: 48px;
  font-weight: 900;
  line-height: 1;
}

.product-card__media {
  position: relative;
  height: 132px;
  margin: 0 0 18px;
  overflow: hidden;
  background: #eef3f9;
  border-radius: 6px;
}

.product-card__media::after,
.gallery-item::after {
  position: absolute;
  right: 10px;
  color: #fff;
  background: rgba(13, 47, 95, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 900;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 180ms ease, transform 180ms ease;
  content: "点击放大";
}

.product-card__media::after {
  bottom: 10px;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  cursor: zoom-in;
  transition: transform 220ms ease;
}

.product-card:hover .product-card__media img {
  transform: scale(1.04);
}

.product-card__media:hover::after,
.product-card__media:focus-within::after,
.gallery-item:hover::after,
.gallery-item:focus-within::after {
  opacity: 1;
  transform: translateY(0);
}

.product-card h3 {
  margin: 0 0 10px;
  color: var(--blue-900);
  font-size: 22px;
}

.product-card p {
  color: var(--steel-500);
  margin: 0;
}

.product-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.product-card li {
  color: var(--blue-800);
  background: #eef5ff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 800;
}

.product-gallery {
  margin-top: 42px;
  padding-top: 34px;
  border-top: 1px solid var(--steel-200);
}

.gallery-head {
  display: grid;
  grid-template-columns: minmax(220px, 0.4fr) 1fr;
  gap: 18px;
  align-items: end;
  margin-bottom: 22px;
}

.gallery-head h3 {
  margin: 0;
  color: var(--blue-900);
  font-size: 30px;
}

.gallery-head p:last-child {
  margin: 0;
  color: var(--steel-500);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(13, 47, 95, 0.06);
}

.gallery-item::after {
  top: 116px;
}

.gallery-item img {
  width: 100%;
  height: 158px;
  display: block;
  object-fit: cover;
  background: #eef3f9;
  cursor: zoom-in;
}

.gallery-item span,
.gallery-item strong {
  display: block;
  padding: 0 16px;
}

.gallery-item span {
  margin-top: 14px;
  color: var(--orange-600);
  font-size: 13px;
  font-weight: 900;
}

.gallery-item strong {
  padding-bottom: 16px;
  color: var(--blue-900);
  font-size: 18px;
}

.catalog-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1fr);
  gap: 24px;
  align-items: stretch;
  margin-top: 42px;
  padding: 26px;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(13, 47, 95, 0.98), rgba(21, 73, 154, 0.92)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 76px);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(13, 47, 95, 0.16);
}

.catalog-panel__content {
  align-self: center;
}

.catalog-panel .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

.catalog-panel h3 {
  margin: 0 0 14px;
  font-size: 32px;
}

.catalog-panel p:not(.eyebrow) {
  max-width: 520px;
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.catalog-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.catalog-panel__preview {
  min-height: 330px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
}

.catalog-panel__preview iframe {
  width: 100%;
  height: 100%;
  min-height: 330px;
  display: block;
  border: 0;
  background: #fff;
}

.strength {
  color: #fff;
  background:
    linear-gradient(120deg, rgba(13, 47, 95, 0.96), rgba(21, 73, 154, 0.9)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 80px);
}

.strength__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1fr);
  gap: 48px;
  align-items: start;
}

.strength h2,
.strength p {
  color: #fff;
}

.strength p {
  color: rgba(255, 255, 255, 0.76);
}

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

.strength-list div {
  padding: 22px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
}

.strength-list strong,
.strength-list span {
  display: block;
}

.strength-list strong {
  font-size: 20px;
}

.strength-list span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.application-grid article {
  min-height: 260px;
  padding: 26px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(13, 47, 95, 0.22), rgba(13, 47, 95, 0.92)),
    repeating-linear-gradient(135deg, #254f85 0 14px, #1b4070 14px 28px);
  border-radius: var(--radius);
}

.application-grid span {
  display: inline-flex;
  margin-bottom: 70px;
  color: var(--orange-500);
  font-weight: 900;
}

.application-grid h3 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.25;
}

.application-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
}

.service {
  background: var(--paper);
}

.service__inner {
  display: grid;
  grid-template-columns: minmax(280px, 0.48fr) 1fr;
  gap: 48px;
  align-items: start;
}

.flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}

.flow li {
  position: relative;
  min-height: 180px;
  padding: 28px;
  background: var(--wash);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  counter-increment: flow;
}

.flow li::before {
  content: counter(flow, decimal-leading-zero);
  display: block;
  margin-bottom: 24px;
  color: var(--orange-600);
  font-size: 32px;
  font-weight: 900;
}

.flow strong,
.flow span {
  display: block;
}

.flow strong {
  color: var(--blue-900);
  font-size: 20px;
}

.flow span {
  margin-top: 8px;
  color: var(--steel-500);
}

.contact {
  background:
    linear-gradient(90deg, var(--wash) 0%, var(--wash) 58%, var(--blue-900) 58%, var(--blue-900) 100%);
}

.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 0.64fr);
  gap: 44px;
  align-items: start;
}

address {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  padding: 24px;
  background: #fff;
  border-left: 4px solid var(--orange-600);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(13, 47, 95, 0.08);
  font-style: normal;
}

address strong {
  color: var(--blue-900);
}

address span {
  color: var(--steel-700);
}

address a {
  color: var(--blue-800);
  font-weight: 900;
}

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

.contact-cards button {
  display: grid;
  gap: 6px;
  padding: 18px;
  color: #fff;
  background: var(--blue-900);
  border: 0;
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(13, 47, 95, 0.12);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.contact-cards button:last-child {
  background: var(--blue-800);
}

.contact-cards strong,
.contact-cards span {
  display: block;
}

.contact-cards span {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 26px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-title {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--steel-200);
}

.form-title strong {
  color: var(--blue-900);
  font-size: 22px;
}

.form-title span {
  color: var(--steel-500);
  font-size: 14px;
}

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

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--blue-900);
  font-weight: 900;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--steel-200);
  border-radius: 4px;
  padding: 12px 14px;
  color: var(--steel-950);
  font: inherit;
}

.contact-form select {
  appearance: none;
  background:
    linear-gradient(45deg, transparent 50%, var(--blue-800) 50%) right 18px center / 7px 7px no-repeat,
    linear-gradient(135deg, var(--blue-800) 50%, transparent 50%) right 13px center / 7px 7px no-repeat,
    #fff;
  padding-right: 38px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--blue-800);
  outline: 3px solid rgba(21, 73, 154, 0.12);
}

.contact-form textarea {
  resize: vertical;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.form-note {
  margin: 0;
  color: var(--steel-500);
  font-size: 14px;
}

.form-note.is-success {
  color: var(--blue-900);
  background: #eef5ff;
  border-left: 4px solid var(--orange-600);
  border-radius: 6px;
  padding: 12px 14px;
}

.site-footer {
  color: rgba(255, 255, 255, 0.74);
  background: #121b28;
  padding: 42px 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 0.4fr;
  gap: 30px;
}

.site-footer strong,
.site-footer span {
  display: block;
  color: #fff;
  font-weight: 900;
}

.site-footer p {
  margin: 10px 0 0;
}

.float-contact {
  position: fixed;
  right: 18px;
  top: 48%;
  z-index: 30;
  display: grid;
  overflow: hidden;
  border-radius: 6px;
  box-shadow: var(--shadow);
}

.float-contact a,
.float-contact button {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  color: #fff;
  background: var(--blue-800);
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 14px;
  font-weight: 900;
  font-family: inherit;
  cursor: pointer;
}

.float-contact button:first-child {
  background: var(--orange-600);
}

body.is-lightbox-open,
body.is-call-modal-open {
  overflow: hidden;
}

.call-modal {
  position: fixed;
  inset: 0;
  z-index: 130;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(7, 18, 34, 0.72);
  backdrop-filter: blur(6px);
}

.call-modal.is-open {
  display: grid;
}

.call-modal__panel {
  position: relative;
  width: min(760px, calc(100vw - 32px));
  padding: 30px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.call-modal__panel h3 {
  margin: 0 0 10px;
  color: var(--blue-900);
  font-size: 28px;
  line-height: 1.25;
}

.call-modal__panel p:not(.eyebrow) {
  margin: 0;
  color: var(--steel-500);
}

.call-modal__phones {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.call-modal__grid {
  display: grid;
  grid-template-columns: minmax(210px, 0.72fr) minmax(280px, 1fr);
  gap: 18px;
  align-items: stretch;
  margin-top: 22px;
}

.call-modal__grid .call-modal__phones {
  margin-top: 0;
}

.call-modal__phones div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 15px;
  color: #fff;
  background: var(--blue-900);
  border-radius: 6px;
}

.call-modal__phones div:last-child {
  background: var(--blue-800);
}

.call-modal__phones span,
.call-modal__phones strong {
  display: block;
}

.call-modal__phones span {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 900;
}

.call-modal__phones strong {
  font-size: 19px;
  letter-spacing: 0.02em;
}

.call-modal__wechat {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 16px;
  text-align: center;
  background: var(--wash);
  border: 1px solid var(--steel-200);
  border-radius: 6px;
}

.call-modal__wechat img {
  width: 100%;
  max-width: 260px;
  margin: 0 auto 4px;
  display: block;
  background: #fff;
  border-radius: 4px;
}

.call-modal__wechat strong {
  color: var(--blue-900);
}

.call-modal__wechat span {
  color: var(--steel-500);
  font-size: 13px;
}

.call-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  min-height: 36px;
  padding: 0 14px;
  color: var(--blue-900);
  background: #eef5ff;
  border: 1px solid #d7e5f8;
  border-radius: 999px;
  font-weight: 900;
  cursor: pointer;
}

.call-modal__close:hover {
  background: #e2eefc;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  place-items: center;
  padding: 34px;
  background: rgba(7, 18, 34, 0.84);
  backdrop-filter: blur(7px);
}

.image-lightbox.is-open {
  display: grid;
}

.image-lightbox__figure {
  width: min(980px, calc(100vw - 52px));
  max-height: calc(100vh - 86px);
  margin: 0;
  display: grid;
  gap: 12px;
}

.image-lightbox__figure img {
  width: 100%;
  max-height: calc(100vh - 148px);
  display: block;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.34);
}

.image-lightbox__figure figcaption {
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  font-weight: 900;
}

.image-lightbox__close {
  position: absolute;
  top: 20px;
  right: 24px;
  min-height: 40px;
  padding: 0 16px;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  font-weight: 900;
  cursor: pointer;
}

.image-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.2);
}

:focus-visible {
  outline: 3px solid rgba(255, 122, 43, 0.62);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .nav {
    min-height: 68px;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .nav__menu {
    position: absolute;
    top: 68px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    background: #fff;
    border: 1px solid var(--steel-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .nav__menu.is-open {
    display: flex;
  }

  .nav__menu a {
    padding: 12px;
  }

  .hero__grid,
  .strength__grid,
  .service__inner,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .hero__grid {
    min-height: auto;
    padding: 58px 0 70px;
  }

  .product-grid,
  .gallery-grid,
  .application-grid,
  .flow,
  .footer__grid,
  .catalog-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .catalog-panel {
    grid-template-columns: 1fr;
  }

  .gallery-head {
    grid-template-columns: 1fr;
  }

  .contact {
    background: var(--wash);
  }
}

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

  .top-line__inner,
  .top-line__links,
  .product-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .quick-contact__inner {
    grid-template-columns: 1fr;
    gap: 10px;
    align-items: start;
    padding: 20px 0;
  }

  .quick-contact strong,
  .quick-contact span {
    display: block;
  }

  .quick-contact strong {
    font-size: 24px;
    line-height: 1.25;
  }

  .quick-contact span {
    line-height: 1.65;
  }

  .quick-contact a {
    width: fit-content;
    margin-top: 4px;
  }

  .brand__mark {
    width: 46px;
    height: 46px;
  }

  .brand strong {
    font-size: 18px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero__stats,
  .product-grid,
  .gallery-grid,
  .application-grid,
  .flow,
  .footer__grid,
  .strength-list,
  .form-row,
  .contact-cards {
    grid-template-columns: 1fr;
  }

  .hero-card {
    min-height: 360px;
  }

  .hero-card__photo--blue {
    inset: 134px 30px 108px;
    padding: 8px 12px;
  }

  .hero-card__panel,
  .hero-card__tags {
    left: 18px;
    right: 18px;
  }

  .product-card__media {
    height: 150px;
  }

  .product-card__index {
    top: 148px;
  }

  .gallery-item img {
    height: 182px;
  }

  .gallery-item::after {
    top: 140px;
  }

  .catalog-panel {
    padding: 22px;
  }

  .catalog-panel__preview,
  .catalog-panel__preview iframe {
    min-height: 260px;
  }

  .image-lightbox {
    padding: 20px;
  }

  .call-modal {
    padding: 18px;
  }

  .call-modal__panel {
    padding: 26px 20px 22px;
  }

  .call-modal__grid {
    grid-template-columns: 1fr;
  }

  .call-modal__phones div {
    align-items: flex-start;
    flex-direction: column;
  }

  .image-lightbox__figure {
    width: calc(100vw - 28px);
  }

  .image-lightbox__close {
    top: 12px;
    right: 14px;
  }

  .hero-card__panel {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .section {
    padding: 62px 0;
  }

  .float-contact {
    right: 10px;
    top: auto;
    bottom: 12px;
    grid-template-columns: repeat(3, 1fr);
  }

  .float-contact a,
  .float-contact button {
    width: 58px;
    height: 46px;
  }
}