:root {
  --red: #d9001b;
  --red-dark: #a70618;
  --ink: #15171b;
  --muted: #60646c;
  --line: #e8eaf0;
  --soft: #f5f6f8;
  --footer: #12161d;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  background: #fff;
}

.route-section[hidden] {
  display: none !important;
}

.single-page-mode main {
  padding-top: 98px;
}

.home-section[hidden] {
  display: none !important;
}

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

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

img {
  height: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 78px;
  padding: 0 42px;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  transition: background 0.3s ease, color 0.3s ease, min-height 0.3s ease;
}

.site-header.scrolled,
.site-header:hover {
  min-height: 68px;
  color: #333;
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 26px rgba(16, 24, 40, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-logo {
  width: 148px;
  max-height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.14));
}

.brand-text {
  font-size: 20px;
  white-space: nowrap;
}

.brand .brand-text {
  display: none;
}

.main-nav {
  display: flex;
  justify-content: flex-start;
  align-items: stretch;
  height: 100%;
  padding-left: 302px;
}

.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 15px;
}

.nav-item > a {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 17px;
}

.nav-item::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 0;
  left: 18px;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s ease;
}

.nav-item:hover {
  color: var(--red);
}

.nav-item:hover::after {
  transform: scaleX(1);
}

.submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  display: grid;
  min-width: 190px;
  padding: 8px 0;
  color: #333;
  background: #fff;
  border-top: 3px solid var(--red);
  box-shadow: 0 16px 42px rgba(16, 24, 40, 0.16);
  opacity: 0;
  transform: translate(-50%, 12px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.nav-item:hover .submenu {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.submenu a {
  padding: 10px 20px;
  white-space: nowrap;
  border-bottom: 1px solid #f0f0f0;
  transition: padding 0.25s ease, color 0.25s ease;
}

.submenu a:hover {
  padding-left: 28px;
  color: var(--red);
}

.lang-link {
  font-size: 15px;
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  color: #fff;
}

.hero-media,
.hero-slide,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-slide {
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-color: #0e1724;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 1s ease, transform 5s ease;
}

.hero-slide.active {
  opacity: 1;
  transform: scale(1);
}

.hero-shade {
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.68), rgba(0, 0, 0, 0.25) 52%, rgba(0, 0, 0, 0.08));
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
  width: min(680px, calc(100% - 48px));
  margin-left: max(24px, calc((100vw - var(--max)) / 2));
  padding-top: 189px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--red);
  font-family: Georgia, serif;
  font-weight: 700;
  text-transform: uppercase;
}

.hero h1 {
  display: grid;
  gap: 8px;
  margin: 0;
  color: #ff6a1a;
  font-family: "STXingkai", "KaiTi", "STKaiti", "Microsoft YaHei", serif;
  font-size: 48px;
  line-height: 1.08;
  font-weight: 700;
  text-shadow: 0 5px 20px rgba(0, 0, 0, 0.42), 0 0 18px rgba(255, 192, 94, 0.42);
}

.hero h1 span:first-child {
  color: #ffffff;
}

.hero h1 span:last-child {
  color: #ff7a1a;
}

.hero-copy {
  width: min(560px, 100%);
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 0;
  background: transparent;
  color: #fff;
  cursor: pointer;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn.primary:hover {
  background: var(--red-dark);
}

.btn.dark,
.btn.ghost.dark {
  color: var(--ink);
  border-color: #cdd1d8;
}

.hero-pager {
  position: absolute;
  right: 46px;
  bottom: 42px;
  z-index: 2;
  display: flex;
  gap: 10px;
}

.hero-pager button {
  width: 28px;
  height: 3px;
  padding: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
}

.hero-pager button.active {
  background: #fff;
}

.section,
.split-section,
.news-section {
  padding: 96px 24px;
}

.section,
.split-section,
.news-section,
.cta-section,
.product-page .detail-section,
.detail-contact {
  content-visibility: auto;
  contain-intrinsic-size: 860px;
}

.hero {
  content-visibility: visible;
}

.section-head {
  width: min(740px, 100%);
  margin: 0 auto 46px;
  text-align: center;
}

.section-head h2,
.split-copy h2,
.cta-inner h2 {
  margin: 0;
  font-size: 36px;
  line-height: 1.25;
}

.section-head p:not(.section-kicker),
.split-copy p,
.cta-inner p {
  color: var(--muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(var(--max), 100%);
  margin: 0 auto;
  background: var(--line);
}

.stats-section {
  background:
    linear-gradient(180deg, #fff, #f7f9fc);
}

.about-hero {
  width: min(var(--max), 100%);
  margin: 0 auto 38px;
  padding: 54px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 252, 0.96));
  border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgba(16, 24, 40, 0.08);
}

.about-head {
  margin-bottom: 28px;
}

.about-copy {
  display: grid;
  gap: 16px;
  color: #343941;
  font-size: 16px;
  text-align: justify;
}

.about-main-image {
  width: 100%;
  max-height: 620px;
  margin-bottom: 28px;
  object-fit: contain;
  background: #f6f7f9;
  border: 1px solid var(--line);
}

.about-lead {
  margin: 0 0 18px;
  color: #20242a;
  font-size: 18px;
  font-weight: 700;
}

.toggle-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin: 22px 0 28px;
}

.tech-tabs {
  padding: 30px 18px;
  background: #fff;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.tech-tabs button {
  min-width: 210px;
  box-shadow: 0 14px 32px rgba(16, 24, 40, 0.08);
}

.toggle-tabs button {
  min-height: 44px;
  padding: 0 24px;
  border: 1px solid var(--red);
  background: #fff;
  color: var(--red-dark);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.toggle-tabs button:hover,
.toggle-tabs button.active {
  background: var(--red);
  color: #fff;
  transform: translateY(-2px);
}

.toggle-panel[hidden] {
  display: none;
}

.about-copy p {
  margin: 0;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.principle-grid article {
  position: relative;
  padding: 22px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(255, 247, 247, 0.96)),
    repeating-linear-gradient(90deg, transparent 0 16px, rgba(217, 0, 27, 0.04) 16px 17px);
  border: 1px solid rgba(217, 0, 27, 0.28);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.88), 0 18px 42px rgba(217, 0, 27, 0.08);
}

.principle-grid article::before,
.principle-grid article::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  border-color: var(--red);
  border-style: solid;
}

.principle-grid article::before {
  top: 8px;
  left: 8px;
  border-width: 2px 0 0 2px;
}

.principle-grid article::after {
  right: 8px;
  bottom: 8px;
  border-width: 0 2px 2px 0;
}

.principle-grid h3 {
  margin: 0 0 8px;
  color: var(--red-dark);
  font-family: "STXingkai", "KaiTi", "STKaiti", "Microsoft YaHei", serif;
  font-size: 28px;
  font-weight: 700;
}

.principle-grid p {
  margin: 0;
  color: var(--muted);
}

.global-slogan {
  margin-top: 42px;
  color: var(--red);
  font-family: "KaiTi", "STKaiti", "Microsoft YaHei", serif;
  font-size: 58px;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0;
  text-shadow: 0 8px 26px rgba(255, 255, 255, 0.95);
}

.about-section-intro {
  width: min(860px, 100%);
  margin: 0 auto 28px;
  text-align: center;
}

.about-section-intro h3 {
  margin: 0 0 12px;
  font-size: 30px;
}

.about-section-intro p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

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

.factory-card {
  display: grid;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 44px rgba(16, 24, 40, 0.08);
}

.factory-card img {
  width: 100%;
  aspect-ratio: 1.32;
  object-fit: contain;
  background: #f6f7f9;
}

.factory-card div {
  padding: 20px;
}

.factory-card h4 {
  margin: 0 0 8px;
  font-size: 18px;
}

.factory-card p {
  margin: 0;
  color: var(--muted);
}

.honor-wall {
  padding: 38px;
  background: #0d1b2d;
  border: 1px solid rgba(217, 0, 27, 0.2);
}

.honor-wall .about-section-intro h3,
.honor-wall .about-section-intro p {
  color: #fff;
}

.honor-wall-hero {
  width: 100%;
  max-height: 520px;
  margin-bottom: 30px;
  object-fit: contain;
  background: #0b1726;
}

.honor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.honor-grid article {
  display: grid;
  align-content: center;
  gap: 14px;
  min-height: 220px;
  padding: 16px;
  text-align: center;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 213, 134, 0.42);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.22);
}

.honor-grid img {
  width: 100%;
  height: 280px;
  object-fit: contain;
  background: #f7f7f7;
}

.honor-grid strong {
  color: var(--red-dark);
  font-size: 18px;
}

.honor-grid small {
  color: var(--muted);
}

.stat {
  padding: 34px 22px;
  text-align: center;
  background: #fff;
}

.stat strong {
  display: block;
  color: var(--red);
  font-family: Georgia, serif;
  font-size: 42px;
  line-height: 1;
}

.product-band {
  background: #15171b;
}

.section-head.light h2,
.section-head.light p:not(.section-kicker) {
  color: #fff;
}

.product-grid,
.application-grid,
.news-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.product-card,
.application-card,
.news-card {
  position: relative;
  overflow: hidden;
  background: #fff;
}

.product-card {
  display: block;
  min-height: 360px;
  color: #fff;
  background: #000;
}

.product-card img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: contain;
  background: #101319;
  opacity: 0.84;
  transition: transform 0.5s ease, opacity 0.5s ease;
}

.product-card div {
  position: absolute;
  right: 24px;
  bottom: 22px;
  left: 24px;
}

.product-card h3,
.application-card h3,
.news-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.product-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.product-card:hover img {
  opacity: 0.62;
  transform: scale(1.02);
}

.split-section {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 56px;
  align-items: center;
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

#technology.split-section {
  display: block;
  width: min(var(--max), calc(100% - 48px));
}

#technology .video-card {
  margin-top: 34px;
}

.tech-panel {
  width: 100%;
}

.tech-hero {
  position: relative;
  min-height: 420px;
  padding: 70px 56px;
  overflow: hidden;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-color: #06172e;
  border: 1px solid var(--line);
}

.tech-hero-copy {
  width: min(620px, 100%);
  padding: 28px 30px;
  color: #fff;
  background: linear-gradient(90deg, rgba(3, 12, 28, 0.72), rgba(3, 12, 28, 0.32));
  border-left: 4px solid #28c7ff;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.2);
}

.tech-panel h2,
.tech-hero h2 {
  margin: 0 0 18px;
  font-size: 36px;
  line-height: 1.25;
}

.tech-hero p:not(.section-kicker) {
  width: min(560px, 100%);
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.tech-intro {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 28px;
  align-items: center;
  padding: 26px;
  background: #f7f9fc;
  border: 1px solid var(--line);
}

.tech-intro img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.tech-intro p {
  margin: 0;
  color: #343941;
  font-size: 16px;
}

.tech-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.tech-feature-grid article {
  display: grid;
  place-content: center;
  min-height: 190px;
  padding: 34px 24px;
  text-align: center;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(236, 247, 255, 0.92)),
    radial-gradient(circle at 50% 12%, rgba(49, 130, 206, 0.24), transparent 42%);
  border: 1px solid rgba(53, 116, 180, 0.24);
  clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0 50%);
  box-shadow: 0 18px 46px rgba(27, 81, 142, 0.12);
}

.tech-feature-grid h3,
.tech-subtitle {
  margin: 0 0 8px;
  color: var(--red-dark);
}

.tech-feature-grid p {
  margin: 0;
  color: var(--muted);
}

.tech-subtitle {
  margin-top: 34px;
  font-size: 24px;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
  margin: 16px 0 0;
  list-style: none;
  counter-reset: adv;
}

.advantage-list li {
  position: relative;
  min-height: 78px;
  padding: 16px 16px 16px 52px;
  background: #fff7f7;
  border: 1px solid #ffd8dc;
}

.advantage-list li::before {
  counter-increment: adv;
  content: counter(adv);
  position: absolute;
  left: 16px;
  top: 16px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  color: #fff;
  background: var(--red);
  font-family: Georgia, serif;
}

.property-copy {
  display: grid;
  gap: 12px;
  color: #343941;
}

.property-copy p {
  margin: 0;
}

.tech-slogans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.tech-slogans strong {
  padding: 18px;
  color: #fff;
  text-align: center;
  background: linear-gradient(135deg, var(--red), #f07a18);
}

.feature-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.feature-list li {
  padding: 13px 0 13px 22px;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid var(--red);
}

.video-card {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  background: #0d1117;
}

.video-card video {
  width: 100%;
  height: 100%;
  min-height: 390px;
  object-fit: contain;
  opacity: 0.86;
}

.play-button {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 74px;
  height: 74px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  background: rgba(217, 0, 27, 0.86);
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.play-button::after {
  content: "";
  position: absolute;
  top: 24px;
  left: 30px;
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
  border-left: 20px solid #fff;
}

.applications {
  background: var(--soft);
}

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

.application-card img {
  width: 100%;
  aspect-ratio: 1.45;
  object-fit: contain;
  background: #fff;
}

.application-card div,
.news-home {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  width: min(var(--max), 100%);
  margin: 0 auto;
  background: #fff;
  box-shadow: 0 20px 60px rgba(16, 24, 40, 0.08);
}

.news-home img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: center;
  background: #f6f7f9;
}

.news-home div {
  padding: 48px;
}

.news-home h2 {
  margin: 0;
  font-size: 42px;
}

.news-home p:not(.section-kicker) {
  color: var(--muted);
  font-size: 18px;
}

.news-more {
  width: fit-content;
  margin-top: 22px;
}

.featured-news[hidden] {
  display: none !important;
}

.featured-news {
  width: min(var(--max), 100%);
  margin: 34px auto 0;
  padding: 42px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(16, 24, 40, 0.08);
}

.featured-news-head {
  width: min(900px, 100%);
  margin: 0 auto 28px;
  text-align: center;
}

.featured-news-head time {
  color: var(--red);
  font-family: Georgia, serif;
  font-weight: 700;
}

.featured-news-head h3 {
  margin: 10px 0 14px;
  font-size: 32px;
  line-height: 1.28;
}

.featured-news-head p {
  margin: 0;
  color: #343941;
  font-size: 17px;
}

.featured-news-gallery {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  margin-bottom: 30px;
}

.featured-news-gallery img {
  width: 100%;
  height: 310px;
  object-fit: contain;
  background: #f6f7f9;
  border: 1px solid var(--line);
}

.featured-news-gallery img:first-child {
  grid-row: span 2;
  height: 636px;
}

.featured-news-body {
  display: grid;
  gap: 14px;
  width: min(920px, 100%);
  margin: 0 auto;
  color: #343941;
  font-size: 16px;
  text-align: justify;
}

.featured-news-body p {
  margin: 0;
}

.news-card {
  padding: 24px;
}

.detail-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 42px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
}

.detail-brand {
  color: var(--ink);
}

.detail-nav {
  display: flex;
  gap: 26px;
  color: #333;
}

.detail-nav a:hover {
  color: var(--red);
}

.detail-hero {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  align-items: center;
  min-height: 560px;
  background: #11161d;
  color: #fff;
}

.detail-hero img {
  width: 100%;
  height: 560px;
  object-fit: contain;
  background: #f6f7f9;
}

.detail-hero-copy {
  padding: 64px;
}

.detail-hero-copy h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.2;
}

.detail-hero-copy p:not(.section-kicker) {
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

.hero-image-note {
  padding: 16px 18px;
  border-left: 4px solid var(--red);
  background: rgba(255, 255, 255, 0.08);
}

.detail-section {
  padding: 92px 24px;
}

.subcategory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.subcategory-card {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px rgba(16, 24, 40, 0.08);
}

.subcategory-card img {
  width: 100%;
  aspect-ratio: 1.25;
  object-fit: contain;
  background: #f6f7f9;
}

.subcategory-card div {
  padding: 24px;
}

.subcategory-card h3 {
  margin: 0 0 10px;
  font-size: 21px;
}

.subcategory-card p {
  color: var(--muted);
}

.subcategory-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.subcategory-card li {
  padding: 5px 10px;
  color: var(--red-dark);
  background: #fff1f2;
  border: 1px solid #ffd2d7;
}

.detail-contact {
  padding: 72px 24px;
  text-align: center;
  color: #fff;
  background: var(--footer);
}

.detail-contact h2 {
  margin: 0 0 10px;
  font-size: 34px;
}

.news-card {
  border-top: 3px solid var(--red);
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.08);
}

.news-card time {
  color: var(--red);
  font-family: Georgia, serif;
}

.news-card a {
  color: var(--red);
  font-weight: 700;
}

.cta-section {
  position: relative;
  padding: 96px 24px;
  color: var(--ink);
  background: #f7f9fc;
}

.cta-inner {
  width: min(760px, 100%);
  margin: 0 auto;
  text-align: center;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.78);
}

.cooperate-wrap {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.cooperate-visual {
  overflow: hidden;
  margin-bottom: 24px;
  background: #dbeafe;
}

.cooperate-visual img {
  width: 100%;
  height: 420px;
  object-fit: contain;
  object-position: center 42%;
  background: #eaf4ff;
}

.cooperate-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
}

.cooperate-info,
.lead-form {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px rgba(16, 24, 40, 0.08);
}

.cooperate-info h2,
.lead-form h3 {
  margin: 0 0 18px;
  font-size: 30px;
}

.cooperate-info dl {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 12px 18px;
  margin: 0;
}

.cooperate-info dt {
  color: var(--muted);
}

.cooperate-info dd {
  margin: 0;
  font-weight: 700;
}

.urgent {
  margin: 24px 0 0;
  padding: 14px 16px;
  color: var(--red-dark);
  background: #fff1f2;
  border-left: 4px solid var(--red);
}

.lead-form {
  display: grid;
  gap: 14px;
}

.lead-form label {
  display: grid;
  gap: 6px;
  color: #30343a;
  font-weight: 700;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d8dde6;
  font: inherit;
}

.lead-form textarea {
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  padding: 64px 24px 24px;
  color: #cbd1dc;
  background: var(--footer);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 42px;
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.footer-grid h3,
.footer-grid h4 {
  margin: 0 0 14px;
  color: #fff;
}

.footer-grid a {
  display: block;
  margin: 7px 0;
}

.map-link {
  width: fit-content;
  margin-top: 10px;
  padding: 8px 14px;
  color: #fff;
  background: var(--red);
}

.copyright {
  width: min(var(--max), 100%);
  margin: 38px auto 0;
  padding-top: 20px;
  color: #8f96a3;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 122, 26, 0.75);
  border-radius: 50%;
  pointer-events: none;
  mix-blend-mode: difference;
  transform: translate(-100px, -100px);
  transition: transform 0.08s linear;
}

.cursor-glow::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  background: rgba(255, 122, 26, 0.55);
  box-shadow: 0 0 22px rgba(255, 122, 26, 0.85);
}

.contact-rail {
  position: fixed;
  right: 22px;
  top: 50%;
  z-index: 30;
  display: grid;
  gap: 10px;
  transform: translateY(-50%);
}

.rail-btn {
  display: grid;
  place-items: center;
  width: 70px;
  min-height: 70px;
  padding: 8px 6px;
  border: 0;
  color: #fff;
  font: inherit;
  cursor: pointer;
  border-radius: 50%;
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.22);
}

.rail-btn span {
  display: grid;
  place-items: center;
  font-size: 22px;
  line-height: 1;
}

.rail-btn span img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 50%;
}

.rail-btn em {
  margin-top: 2px;
  font-style: normal;
  font-size: 12px;
  line-height: 1.1;
}

.rail-btn.phone {
  background: #1977f3;
}

.rail-btn.wechat {
  background: #05c263;
}

.rail-btn.top {
  background: #1f2937;
}

.contact-modal {
  width: min(520px, calc(100% - 32px));
}

.contact-pop {
  padding: 44px 34px 34px;
  text-align: center;
}

.phone-pop h3 {
  margin: 0 0 12px;
  font-size: 30px;
}

.phone-pop strong {
  display: block;
  margin-bottom: 24px;
  color: var(--red-dark);
  font-size: 26px;
}

.wechat-pop img {
  width: 100%;
  max-height: 76vh;
  object-fit: contain;
}

.wechat-pop p {
  margin: 14px 0 0;
  color: var(--muted);
  font-weight: 700;
}

dialog {
  width: min(920px, calc(100% - 32px));
  padding: 0;
  border: 0;
  background: #fff;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.64);
}

.video-modal {
  background: #000;
}

.video-modal video {
  width: 100%;
  max-height: 78vh;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  width: 38px;
  height: 38px;
  border: 0;
  background: var(--red);
  color: #fff;
  font-size: 28px;
  cursor: pointer;
}

.admin-panel {
  padding: 32px;
}

.admin-panel h3 {
  margin: 0 0 8px;
}

.admin-panel p {
  color: var(--muted);
}

.admin-panel textarea {
  width: 100%;
  height: 46vh;
  padding: 16px;
  border: 1px solid var(--line);
  font-family: Consolas, monospace;
  font-size: 13px;
  resize: vertical;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto auto;
    padding: 0 20px;
  }

  .nav-toggle {
    display: grid;
    justify-self: end;
    gap: 5px;
    width: 42px;
    padding: 9px;
    border: 0;
    background: transparent;
  }

  .nav-toggle span {
    height: 2px;
    background: currentColor;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    right: 0;
    left: 0;
    display: none;
    height: auto;
    padding: 12px 20px 20px;
    color: #333;
    background: #fff;
  }

  .main-nav.open {
    display: grid;
  }

  .nav-item {
    min-height: 46px;
  }

  .submenu {
    display: none;
  }

  .lang-link {
    display: none;
  }

  .hero h1 {
    font-size: 42px;
  }

  .stats-grid,
  .product-grid,
  .application-grid,
  .news-grid,
  .subcategory-grid,
  .factory-gallery,
  .honor-grid,
  .principle-grid,
  .tech-feature-grid,
  .advantage-list,
  .tech-slogans,
  .news-home,
  .cooperate-grid,
  .footer-grid,
  .tech-hero,
  .split-section,
  .detail-hero {
    grid-template-columns: 1fr 1fr;
  }

  .detail-header {
    padding: 0 20px;
  }

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

@media (max-width: 640px) {
  .hero {
    min-height: 680px;
  }

  .hero-content {
    min-height: 680px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .section,
  .split-section,
  .news-section {
    padding: 68px 18px;
  }

  .section-head h2,
  .split-copy h2,
  .cta-inner h2 {
    font-size: 28px;
  }

  .stats-grid,
  .product-grid,
  .application-grid,
  .news-grid,
  .subcategory-grid,
  .factory-gallery,
  .honor-grid,
  .principle-grid,
  .tech-feature-grid,
  .advantage-list,
  .tech-slogans,
  .news-home,
  .cooperate-grid,
  .footer-grid,
  .tech-hero,
  .split-section,
  .detail-hero {
    grid-template-columns: 1fr;
  }

  .brand-logo {
    width: 120px;
  }

  .about-hero {
    padding: 32px 18px;
  }

  .honor-wall {
    padding: 24px 16px;
  }

  .global-slogan {
    font-size: 36px;
  }

  .tech-intro {
    grid-template-columns: 1fr;
  }

  .tech-hero {
    min-height: 320px;
  }

  .tech-hero-copy {
    padding: 0;
  }

  .news-home img {
    height: 300px;
  }

  .news-home div,
  .cooperate-info,
  .lead-form {
    padding: 24px;
  }

  .brand-text {
    display: none;
  }

  .detail-hero img {
    height: 320px;
  }

  .detail-hero-copy {
    padding: 38px 20px 52px;
  }

  .detail-hero-copy h1 {
    font-size: 30px;
  }

  .product-card,
  .product-card img {
    min-height: 290px;
  }

  .contact-rail {
    right: 12px;
    gap: 7px;
  }

  .rail-btn {
    width: 58px;
    min-height: 58px;
  }

  .rail-btn em {
    font-size: 11px;
  }
}