:root {
  --color-primary: #314b63;
  --color-primary-strong: #23384a;
  --color-accent: #6c90af;
  --color-surface: #ffffff;
  --color-surface-soft: #f2f8fe;
  --color-surface-deep: #314b63;
  --color-line: rgba(108, 144, 175, 0.16);
  --color-line-strong: rgba(108, 144, 175, 0.28);
  --color-text: #23384a;
  --color-text-soft: #667f95;
  --shadow-card: 0 24px 60px rgba(72, 102, 128, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1180px, calc(100vw - 48px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(132, 180, 222, 0.2), transparent 28%),
    linear-gradient(180deg, #edf6ff 0%, #f8fbff 28%, #edf6ff 100%);
}

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

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

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

.site-shell {
  position: relative;
  overflow: clip;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.topbar__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 86px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: #fff;
}

.brand__logo {
  height: 52px;
  width: auto;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 48px;
  aspect-ratio: 1;
  border-radius: 14px;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.25), transparent 58%),
    linear-gradient(145deg, #13283c, #627789);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand__text {
  display: grid;
  gap: 4px;
}

.brand__text strong {
  font-size: 1rem;
  letter-spacing: 0.06em;
}

.brand__text small {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.75rem;
}

.nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
}

.nav a {
  color: var(--color-text);
  font-size: 0.95rem;
  transition: color 180ms ease;
}

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

.nav-dropdown {
  position: relative;
}

.nav-dropdown::before {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 12px;
}

.nav-dropdown > a::after {
  content: "▾";
  margin-left: 6px;
  font-size: 0.7rem;
}

.nav-dropdown__menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 240px;
  max-height: min(70vh, 620px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 10px;
  margin-top: 10px;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 60;
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown.is-open .nav-dropdown__menu {
  display: flex;
}

.nav-dropdown__menu a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  white-space: nowrap;
  color: var(--color-text);
}

.nav-dropdown__menu a:hover {
  background: var(--color-surface-soft);
  color: var(--color-accent);
}

.contact-rail {
  display: grid;
  justify-items: end;
  gap: 4px;
  color: var(--color-text);
}

.contact-rail a {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.contact-rail span {
  color: var(--color-text-soft);
  font-size: 0.78rem;
}



.nav-toggle {
  display: none;
  margin-left: auto;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 14px;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--color-text);
}

.hero {
  position: relative;
  min-height: 900px;
  padding: 60px 0 80px;
  color: #fff;
  background:
    radial-gradient(circle at 20% 10%, rgba(140, 162, 180, 0.18), transparent 18%),
    radial-gradient(circle at 80% 15%, rgba(140, 162, 180, 0.12), transparent 20%),
    linear-gradient(145deg, #091726 0%, #10283d 45%, #09121d 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 82%);
  pointer-events: none;
}

.hero__media {
  position: absolute;
  inset: 0;
  width: min(50vw, 760px);
  margin-left: auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  grid-template-rows: 1fr 0.9fr;
  gap: 18px;
  padding: 120px 36px 80px 0;
}

.hero__image {
  position: relative;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin: 0;
}

.hero__image::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.58) 100%);
}

.hero__image::after {
  content: "";
  position: absolute;
  inset: auto 20px 20px auto;
  width: 72px;
  height: 72px;
  border-top: 1px solid rgba(255, 255, 255, 0.38);
  border-right: 1px solid rgba(255, 255, 255, 0.38);
}

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

.hero__image figcaption {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 1;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.hero__image--factory {
  grid-row: 1 / span 2;
}

.hero__image--line {
}

.hero__image--project {
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 380px);
  gap: 42px;
  align-items: end;
  min-height: 760px;
}

.hero__copy {
  max-width: 640px;
  padding-top: 80px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.8rem, 5vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
}

.hero__lead {
  max-width: 560px;
  margin: 24px 0 0;
  font-size: 1.08rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.78);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  background: linear-gradient(135deg, #eef4f8, #c9d4de);
  color: var(--color-primary-strong);
}

.button--secondary {
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
}

.hero__badges li {
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
}

.hero__panel {
  display: grid;
  gap: 18px;
  align-self: end;
}

.panel-card,
.panel-grid article {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(165deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-card);
}

.panel-card {
  padding: 28px;
}

.panel-card__label {
  display: inline-block;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.85rem;
}

.panel-card strong {
  display: block;
  font-family: "DIN Alternate", "Impact", sans-serif;
  font-size: 4rem;
  line-height: 1;
}

.panel-card p {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.8;
}

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

.panel-grid article {
  padding: 24px 18px;
}

.panel-grid strong {
  display: block;
  margin-bottom: 8px;
  font-family: "DIN Alternate", "Impact", sans-serif;
  font-size: 1.8rem;
}

.panel-grid span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.section {
  padding: 104px 0;
}

.section--light {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(237, 246, 255, 0.94));
}

.section--accent {
  background:
    radial-gradient(circle at right top, rgba(132, 180, 222, 0.18), transparent 28%),
    linear-gradient(180deg, #314b63 0%, #4b7396 100%);
  color: #fff;
}

.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}

.section-head--split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.75fr);
  gap: 28px;
  align-items: end;
  max-width: none;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
}

.section-head p:last-child {
  margin: 18px 0 0;
  color: inherit;
  opacity: 0.78;
  line-height: 1.9;
}

.metric-grid,
.product-grid,
.advantage-grid,
.process-grid,
.technology-grid,
.news-grid {
  display: grid;
  gap: 24px;
}

.metric-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.metric-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-card);
}

.metric-card strong {
  display: block;
  margin-bottom: 16px;
  color: var(--color-primary);
  font-size: 2rem;
}

.metric-card h3 {
  margin: 0 0 12px;
  font-size: 1.08rem;
}

.metric-card p {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.8;
}

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

.product-card,
.news-card,
.case-card,
.contact-card,
.process-card,
.technology-grid article,
.advantage-grid article {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-card);
}

.product-card {
  padding: 22px 22px 24px;
  background: rgba(255, 255, 255, 0.96);
  cursor: pointer;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.product-card:hover,
.product-card:focus-within {
  transform: translateY(-5px);
  border-color: rgba(54, 133, 202, 0.34);
  box-shadow: 0 22px 50px rgba(32, 76, 113, 0.16);
}

.product-card__media {
  position: relative;
  min-height: 220px;
  border-radius: 20px;
  margin-bottom: 20px;
  overflow: hidden;
}

.product-card__media img {
  width: 100%;
  min-height: 220px;
  object-fit: cover;
  display: block;
}

.product-card__media figcaption {
  position: absolute;
  left: 20px;
  bottom: 18px;
  z-index: 1;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.88);
  letter-spacing: 0.06em;
}

.product-card h3,
.process-card h3,
.news-card h3,
.technology-grid article h3,
.advantage-grid article h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.product-card p,
.process-card p,
.news-card p,
.technology-grid article p,
.advantage-grid article p,
.case-card__body p {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.product-card ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
}

.product-card li {
  padding-left: 18px;
  position: relative;
  color: var(--color-text);
}

.product-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
}

.product-card a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-primary);
  font-weight: 700;
}

/* 产品中心整张卡片均可进入详情页，同时保留原有“查看详情”链接样式 */
.product-card > a[href]::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
}

.product-card > a[href]:focus-visible {
  outline: none;
}

.product-card:has(> a[href]:focus-visible) {
  outline: 3px solid rgba(54, 133, 202, 0.5);
  outline-offset: 4px;
}

.advantage-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.advantage-grid article {
  padding: 28px 24px;
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.03);
}

.advantage-grid article p {
  color: rgba(255, 255, 255, 0.76);
}

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

.process-card {
  padding: 28px 24px 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 247, 250, 0.94));
}

.process-card span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--color-accent);
  font-family: "DIN Alternate", "Impact", sans-serif;
  font-size: 2rem;
  letter-spacing: 0.05em;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-card {
  background: rgba(255, 255, 255, 0.95);
}

.case-card__image {
  position: relative;
  min-height: 240px;
  margin: 0;
  overflow: hidden;
}

.case-card__image img {
  width: 100%;
  min-height: 240px;
  object-fit: cover;
  display: block;
}

.case-card__image figcaption {
  position: absolute;
  left: 20px;
  bottom: 20px;
  z-index: 1;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.case-card__body {
  padding: 22px;
}

.case-card__body span,
.news-card span {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(15, 43, 70, 0.08);
  color: var(--color-primary);
  font-size: 0.84rem;
  font-weight: 700;
}

.case-card__body h3 {
  margin: 0 0 12px;
  font-size: 1.18rem;
}

.case-card__body p + p {
  margin-top: 8px;
}

.solutions-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.solutions-sidebar {
  position: sticky;
  top: 108px;
  display: grid;
  gap: 24px;
}

.solutions-panel h2 {
  margin: 0 0 14px;
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  line-height: 1.15;
}

.solutions-panel > p:last-of-type {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.85;
}

.solutions-menu {
  display: grid;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.solutions-menu li + li {
  border-top: 1px solid var(--color-line);
}

.solutions-menu a {
  display: grid;
  gap: 6px;
  padding: 18px 0;
}

.solutions-menu strong {
  color: var(--color-primary);
  font-size: 1rem;
}

.solutions-menu small {
  color: var(--color-text-soft);
  line-height: 1.7;
}

.solutions-callout {
  background:
    radial-gradient(circle at top left, rgba(152, 167, 181, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(237, 243, 247, 0.96));
}

.solutions-content {
  display: grid;
  gap: 36px;
}

.solutions-content .section-head {
  margin-bottom: 0;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.solution-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-card);
}

.solution-card__media {
  position: relative;
  height: clamp(220px, 22vw, 300px);
  margin: 0;
  overflow: hidden;
}

.solution-card__media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 34%, rgba(10, 23, 39, 0.56) 100%);
}

.solution-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.solution-card__media figcaption {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 18px;
  z-index: 1;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.solution-card__body {
  padding: 22px;
}

.solution-card__body span {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(15, 43, 70, 0.08);
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 700;
}

.solution-card__body h3 {
  margin: 0 0 12px;
  font-size: 1.18rem;
}

.solution-card__body p {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.85;
}

.solution-card__body p:first-of-type {
  color: var(--color-text);
}

.solution-card__body p + p {
  margin-top: 8px;
}

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

.technology-grid article {
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.95);
}

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

.news-card {
  padding: 28px 24px;
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.03);
}

.news-card span {
  background: rgba(255, 255, 255, 0.12);
  color: #d9e2ea;
}

.news-card p {
  color: rgba(255, 255, 255, 0.72);
}

.contact-block {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.contact-copy {
  padding-right: 24px;
}

.contact-list {
  display: grid;
  gap: 20px;
  margin: 34px 0 0;
}

.contact-list div {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-line);
}

.contact-list dt {
  margin-bottom: 10px;
  color: var(--color-primary);
  font-weight: 700;
}

.contact-list dd {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.contact-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 247, 250, 0.96));
}

.qr-box {
  display: grid;
  place-items: center;
  min-height: 180px;
  border-radius: 20px;
  border: 1px dashed rgba(15, 43, 70, 0.24);
  background:
    linear-gradient(135deg, rgba(15, 43, 70, 0.04), rgba(152, 167, 181, 0.12)),
    #fff;
  color: var(--color-primary);
  font-weight: 700;
}

.qr-box img {
  width: min(140px, 100%);
  height: auto;
}

.direct-contact h3 {
  margin: 0 0 12px;
  color: var(--color-primary);
  font-size: 1.25rem;
}

.direct-contact > p:not(.eyebrow) {
  margin: 10px 0 18px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.direct-contact__phone {
  display: inline-block;
  color: var(--color-primary);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.direct-contact__details {
  display: grid;
  gap: 12px;
  margin: 0;
}

.direct-contact__details div {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 12px;
}

.direct-contact__details dt {
  color: var(--color-primary);
  font-weight: 700;
}

.direct-contact__details dd {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.65;
}

.direct-contact__details a {
  color: inherit;
}

@media (max-width: 560px) {
  .contact-card {
    grid-template-columns: 1fr;
  }

  .direct-contact__details div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

.footer {
  padding: 32px 0 96px;
  color: rgba(255, 255, 255, 0.78);
  background: #5c7b98;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.3fr auto auto;
  gap: 24px;
  align-items: center;
}

.footer__inner strong {
  display: block;
  margin-bottom: 12px;
  color: #fff;
}

.footer__inner p {
  margin: 0;
  line-height: 1.8;
}

.footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer__copy {
  justify-self: end;
  text-align: right;
  font-size: 0.88rem;
}

.mobile-cta {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 20;
  display: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.mobile-cta a {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  border-radius: 999px;
  box-shadow: 0 18px 40px rgba(8, 20, 32, 0.28);
  font-weight: 700;
}

.mobile-cta a:first-child {
  background: var(--color-primary);
  color: #fff;
}

.mobile-cta a:last-child {
  background: #edf3f7;
  color: var(--color-primary);
}

.nav a[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 700;
}

.button--dark {
  background: var(--color-primary);
  color: #fff;
}

.button--outline {
  border: 1px solid rgba(15, 43, 70, 0.18);
  background: rgba(255, 255, 255, 0.82);
  color: var(--color-primary);
}

.section-actions {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  color: var(--color-primary);
  font-weight: 700;
}

.text-link--light {
  color: #fff;
}

.text-link::after {
  content: "›";
  font-size: 1.2rem;
  line-height: 1;
}

.page-hero {
  position: relative;
  padding: 84px 0 72px;
  background:
    radial-gradient(circle at 0% 0%, rgba(132, 180, 222, 0.22), transparent 28%),
    linear-gradient(180deg, #c8dff2 0%, rgba(237, 246, 255, 0.96) 100%);
}

.page-hero--dark {
  color: #fff;
  background:
    radial-gradient(circle at 0% 0%, rgba(132, 180, 222, 0.2), transparent 28%),
    linear-gradient(160deg, #314b63 0%, #4b7396 52%, #314b63 100%);
}

.page-hero__content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  gap: 34px;
  align-items: center;
}

.page-hero__copy {
  max-width: 720px;
}

.page-hero__lead {
  margin: 22px 0 0;
  color: var(--color-text-soft);
  font-size: 1.05rem;
  line-height: 1.9;
}

.page-hero--dark .page-hero__lead {
  color: rgba(255, 255, 255, 0.76);
}

.page-hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 4.4vw, 4.4rem);
  line-height: 1.08;
}

.page-hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-card);
  background: rgba(255, 255, 255, 0.8);
}

.page-hero--dark .page-hero__visual {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.page-hero__visual img {
  width: 100%;
  min-height: 360px;
  object-fit: cover;
}

.page-hero__visual--compact {
  width: min(100%, 430px);
  justify-self: center;
}

.page-hero__visual--compact img {
  min-height: 0;
  height: 300px;
  object-fit: cover;
}

.page-hero__visual--contain img {
  object-fit: contain;
  background: rgba(255, 255, 255, 0.04);
}

@media (max-width: 768px) {
  .page-hero__visual--compact {
    width: min(82%, 360px);
  }

  .page-hero__visual--compact img {
    height: 230px;
  }
}

.page-hero__visual figcaption {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* 产品详情页主图统一采用紧凑尺寸，完整展示产品而不撑高首屏 */
.product-page .page-hero__visual,
.compact-hero-page .page-hero__visual {
  width: min(100%, 430px);
  justify-self: end;
}

.product-page .page-hero__visual img,
.compact-hero-page .page-hero__visual img {
  display: block;
  width: 100%;
  height: 300px;
  min-height: 0;
  object-fit: contain;
}

/* 浏览器非全屏或中等宽度时，主图随单栏布局居中，避免落在右下角 */
@media (max-width: 1180px) {
  .product-page .page-hero__visual,
  .compact-hero-page .page-hero__visual {
    justify-self: center;
  }
}

@media (max-width: 760px) {
  .product-page .page-hero__visual,
  .compact-hero-page .page-hero__visual {
    width: min(88%, 360px);
    justify-self: center;
  }

  .product-page .page-hero__visual img,
  .compact-hero-page .page-hero__visual img {
    height: 230px;
  }
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  color: rgba(15, 43, 70, 0.62);
  font-size: 0.92rem;
}

.page-hero--dark .breadcrumb {
  color: rgba(255, 255, 255, 0.62);
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.page-meta li {
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(15, 43, 70, 0.06);
  color: var(--color-primary);
  font-size: 0.92rem;
  font-weight: 700;
}

.page-hero--dark .page-meta li {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
}

.stats-band,
.content-grid,
.article-grid,
.service-grid,
.step-grid {
  display: grid;
  gap: 24px;
}

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

.stats-band__item {
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-card);
}

.stats-band__item strong {
  display: block;
  margin-bottom: 10px;
  color: var(--color-primary);
  font-size: 2rem;
  font-family: "DIN Alternate", "Impact", sans-serif;
}

.stats-band__item span {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
}

.stats-band__item p {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.8;
}

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

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

.info-card,
.section-card,
.article-card,
.sidebar-card,
.step-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
}

.info-card h3,
.section-card h3,
.article-card h3,
.sidebar-card h3,
.step-card h3 {
  margin: 0 0 14px;
  font-size: 1.2rem;
}

.info-card p,
.section-card p,
.article-card p,
.sidebar-card p,
.step-card p {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.85;
}

.info-card--dark {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.03);
}

.info-card--dark p {
  color: rgba(255, 255, 255, 0.78);
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 28px;
  align-items: start;
}

.detail-stack {
  display: grid;
  gap: 24px;
}

.figure-card {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-card);
  background: rgba(255, 255, 255, 0.95);
}

.figure-card img {
  width: 100%;
  min-height: 320px;
  object-fit: cover;
}

.figure-card figcaption {
  padding: 18px 22px 22px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.factory-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.home-case-group + .home-case-group {
  margin-top: 48px;
}

.home-case-group__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 20px;
}

.home-case-group__head h3,
.home-case-group__head p {
  margin: 0;
}

.home-case-group__head h3 {
  color: var(--color-primary);
  font-size: 1.45rem;
}

.home-case-group__head p {
  max-width: 700px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.home-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.home-case-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-card);
  cursor: zoom-in;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.home-case-card:hover {
  transform: translateY(-3px);
}

.home-case-card:focus-visible {
  outline: 3px solid rgba(31, 125, 174, 0.45);
  outline-offset: 3px;
}

.home-case-card img {
  display: block;
  width: 100%;
  height: 330px;
  object-fit: cover;
}

.home-case-card--wide img {
  object-position: center;
}

.home-case-card figcaption {
  padding: 15px 18px 17px;
  color: var(--color-primary);
  font-weight: 700;
}

@media (max-width: 900px) {
  .home-case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-case-group__head { display: block; }
  .home-case-group__head p { margin-top: 8px; }
}

@media (max-width: 560px) {
  .home-case-grid { grid-template-columns: 1fr; }
  .home-case-card img { height: auto; max-height: 480px; }
}

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

.product-gallery button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  overflow: hidden;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(18, 34, 51, 0.1);
  cursor: zoom-in;
}

.product-gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-gallery button:hover img {
  transform: scale(1.035);
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(7, 18, 30, 0.72);
}

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

.gallery-lightbox__box {
  position: relative;
  width: min(680px, 92vw);
  padding: 16px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

.gallery-lightbox__box img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border-radius: 10px;
}

.gallery-lightbox--cases .gallery-lightbox__box {
  width: min(1000px, 92vw);
}

.gallery-lightbox--cases .gallery-lightbox__box img {
  max-height: 82vh;
}

.gallery-lightbox__close {
  position: absolute;
  top: -14px;
  right: -14px;
  z-index: 1;
  width: 38px;
  height: 38px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #153854;
  color: #fff;
  font-size: 28px;
  line-height: 30px;
  cursor: pointer;
}

@media (max-width: 900px) {
  .product-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .product-gallery { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .factory-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.list-check,
.tag-list,
.page-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.list-check {
  display: grid;
  gap: 12px;
}

.list-check li {
  position: relative;
  padding-left: 22px;
  line-height: 1.8;
  color: var(--color-text);
}

.list-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-list li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(15, 43, 70, 0.08);
  color: var(--color-primary);
  font-size: 0.92rem;
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.spec-table th,
.spec-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  color: var(--color-primary);
  font-weight: 700;
  background: rgba(15, 43, 70, 0.04);
}

.spec-table td {
  color: var(--color-text-soft);
  line-height: 1.7;
}

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

.step-card span {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--color-accent);
  font-size: 1.8rem;
  font-family: "DIN Alternate", "Impact", sans-serif;
}

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

.faq-list details {
  border-radius: 20px;
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.94);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--color-primary);
}

.faq-list p {
  margin: 14px 0 0;
  color: var(--color-text-soft);
  line-height: 1.85;
}

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

.article-card__meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 700;
}

.article-content {
  display: grid;
  gap: 24px;
}

.article-content h2,
.article-content h3 {
  margin: 0;
  color: var(--color-primary);
}

.article-content p,
.article-content li {
  color: var(--color-text-soft);
  line-height: 1.95;
}

.article-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.article-figure img {
  width: 100%;
  display: block;
}

.article-figure figcaption {
  padding: 13px 16px 15px;
  background: rgba(15, 43, 70, 0.055);
  color: var(--color-text-soft);
  font-size: 0.92rem;
  line-height: 1.7;
}

.article-figure--compact {
  width: min(100%, 760px);
  margin-inline: auto;
}

.article-content ul,
.article-content ol {
  margin: 0;
  padding-left: 20px;
}

.article-content blockquote {
  margin: 0;
  padding: 20px 22px;
  border-left: 4px solid var(--color-primary);
  border-radius: 0 18px 18px 0;
  background: rgba(15, 43, 70, 0.05);
  color: var(--color-primary);
  font-weight: 700;
}

.sidebar-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-primary);
  font-size: 1.25rem;
}

.cta-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 34px 36px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top left, rgba(152, 167, 181, 0.14), transparent 34%),
    linear-gradient(135deg, #f7fafc 0%, #edf3f7 38%, #dfe8ef 100%);
  border: 1px solid rgba(15, 43, 70, 0.12);
  box-shadow: var(--shadow-card);
}

.cta-banner h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.15;
}

.cta-banner p:last-child {
  margin: 16px 0 0;
  color: var(--color-text-soft);
  line-height: 1.85;
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

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

.map-box {
  min-height: 320px;
  border-radius: var(--radius-lg);
  border: 1px dashed rgba(15, 43, 70, 0.18);
  background:
    linear-gradient(135deg, rgba(15, 43, 70, 0.04), rgba(152, 167, 181, 0.12)),
    #fff;
  display: grid;
  place-items: center;
  color: var(--color-primary);
  font-weight: 700;
  box-shadow: var(--shadow-card);
}

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

.footer__inner--stack {
  grid-template-columns: 1.2fr 1fr auto;
}

@media (max-width: 1180px) {
  .metric-grid,
  .advantage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .stats-band,
  .content-grid,
  .article-grid,
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .hero__content {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 120px;
  }

  .hero__copy {
    max-width: none;
  }

  .hero__panel {
    max-width: 640px;
  }

  .hero__media {
    position: relative;
    width: 100%;
    padding: 0;
    margin-top: 36px;
  }

  .page-hero__content,
  .detail-grid,
  .cta-banner {
    grid-template-columns: 1fr;
  }

  .solutions-layout {
    grid-template-columns: 1fr;
  }

  .solutions-sidebar {
    position: static;
  }

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

@media (max-width: 980px) {
  :root {
    --container: min(100vw - 32px, 100%);
  }

  .topbar__inner {
    grid-template-columns: auto auto;
    padding: 18px 0;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 18px;
    border-radius: 20px;
    background: rgba(9, 26, 44, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-card);
  }

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

  .contact-rail {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 30px;
  }

  .hero__media {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(3, 220px);
  }

  .hero__image--factory {
    grid-row: auto;
  }

  .stats-band,
  .content-grid,
  .content-grid--two,
  .article-grid,
  .service-grid,
  .step-grid,
  .metric-grid,
  .product-grid,
  .advantage-grid,
  .process-grid,
  .case-grid,
  .solution-grid,
  .technology-grid,
  .news-grid,
  .contact-block,
  .contact-card,
  .section-head--split,
  .footer__inner {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 84px 0;
  }

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

  .contact-copy {
    padding-right: 0;
  }

  .footer__copy {
    justify-self: start;
    text-align: left;
  }

  .footer__inner--stack {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar__inner {
    min-height: 74px;
  }

  .brand__text small {
    display: none;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .hero__lead,
  .section-head p:last-child,
  .product-card p,
  .metric-card p,
  .process-card p,
  .news-card p,
  .technology-grid article p,
  .advantage-grid article p,
  .case-card__body p,
  .solution-card__body p,
  .contact-list dd {
    line-height: 1.7;
  }

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

  .stats-band {
    grid-template-columns: 1fr;
  }

  .contact-card {
    padding: 20px;
  }

  .mobile-cta {
    display: grid;
  }

  .footer {
    padding-bottom: 112px;
  }

  .cta-banner {
    padding: 26px 22px;
  }
}
.home-custom-hero__visual {
  max-height: 470px;
}

.home-custom-hero__visual img {
  width: 100%;
  height: 390px;
  object-fit: cover;
}

.home-custom-hero__visual figcaption {
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 18px 24px;
  background: linear-gradient(90deg, rgba(28, 48, 65, 0.92), rgba(45, 74, 98, 0.84));
  color: #fff;
  font-size: 1rem;
  line-height: 1.55;
  letter-spacing: 0.03em;
  text-align: center;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

.home-custom-services,
.home-custom-environment-grid,
.home-custom-gallery {
  display: grid;
  gap: 24px;
}

.home-custom-services {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.home-custom-services article,
.home-custom-environment-grid article {
  padding: 28px;
  border: 1px solid rgba(54, 102, 139, 0.14);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(42, 82, 116, 0.08);
}

.home-custom-services h3,
.home-custom-environment-grid h3 {
  margin: 0 0 12px;
  color: var(--color-text);
}

.home-custom-services p,
.home-custom-environment-grid p {
  margin: 0;
  color: var(--color-text-soft);
  line-height: 1.85;
}

.home-custom-environments,
.home-custom-process {
  background: linear-gradient(135deg, #d9e9f6 0%, #edf5fb 100%);
}

.home-custom-environment-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.home-custom-environment-grid span {
  display: block;
  margin-bottom: 18px;
  color: var(--color-accent);
  font-size: 1.8rem;
  font-weight: 800;
}

.home-custom-gallery {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.home-custom-gallery figure {
  margin: 0;
  overflow: hidden;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(42, 82, 116, 0.1);
}

.home-custom-gallery img {
  display: block;
  width: 100%;
  height: 270px;
  object-fit: cover;
  cursor: zoom-in;
}

.home-custom-gallery figcaption {
  padding: 18px 20px;
  color: var(--color-text);
  font-weight: 700;
}

.home-custom-more {
  margin-top: 30px;
  text-align: center;
}

.article-figure--home-small {
  width: min(100%, 560px);
  margin-left: auto;
  margin-right: auto;
}

.article-figure--home-small img {
  width: 100%;
  max-height: 390px;
  object-fit: contain;
}

@media (max-width: 900px) {
  .home-custom-services,
  .home-custom-environment-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 620px) {
  .home-custom-hero__visual img {
    height: 260px;
  }

  .home-custom-services,
  .home-custom-environment-grid,
  .home-custom-gallery {
    grid-template-columns: 1fr;
  }

  .home-custom-gallery img {
    height: 235px;
  }
}