:root {
  --red: #d60107;
  --deep-red: #a90005;
  --ink: #101318;
  --muted: #69717f;
  --line: rgba(255, 255, 255, 0.22);
  --white: #ffffff;
  --blue: #213d76;
  --steel: #5d6877;
  --paper: #f5f6f8;
  --header-height: 86px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow: hidden;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: #05070b;
  overflow: hidden;
}

body.mobile-scroll {
  overflow: auto;
}

html.mobile-scroll {
  overflow: auto;
}

body.nav-open {
  overflow: hidden;
}

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

button {
  border: 0;
  color: inherit;
  font: inherit;
  background: transparent;
  cursor: pointer;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 0 48px;
  color: #fff;
  background: rgba(0, 0, 0, 0.62);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transform: translateY(-100%);
  animation: headerDrop 0.9s 0.15s forwards;
  transition: height 0.3s ease, background 0.3s ease;
}

.site-header.is-compact {
  height: 70px;
  background: rgba(6, 8, 12, 0.86);
  backdrop-filter: blur(12px);
}

@keyframes headerDrop {
  to {
    transform: translateY(0);
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 238px;
}

.brand-logo {
  width: 74px;
  height: 52px;
  padding: 3px;
  object-fit: contain;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 24px;
  font-weight: 800;
}

.brand-copy small {
  margin-top: 5px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.72);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  flex: 1;
}

.main-nav a {
  position: relative;
  padding: 31px 0;
  font-size: 16px;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.88);
  transition: color 0.25s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 23px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  background: var(--red);
  transition: transform 0.25s ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: #fff;
}

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

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-width: 230px;
  justify-content: flex-end;
  color: #fff;
}

.header-phone svg {
  width: 23px;
  height: 23px;
  color: var(--red);
}

.header-phone span {
  color: rgba(255, 255, 255, 0.68);
}

.header-phone strong {
  font-size: 20px;
  color: #fff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.page-shell {
  height: 100vh;
  transition: transform 0.95s cubic-bezier(0.73, 0, 0.16, 1);
  will-change: transform;
}

.section {
  position: relative;
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
}

.section-inner {
  position: relative;
  z-index: 2;
  width: min(1230px, calc(100% - 72px));
  height: 100%;
  margin: 0 auto;
  padding-top: var(--header-height);
}

.section-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-position: center;
  background-size: cover;
}

.section-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.78);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h2 {
  margin-bottom: 12px;
  font-size: 40px;
  line-height: 1.25;
  font-weight: 800;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.center-heading {
  text-align: center;
}

.center-heading h2 {
  position: relative;
  display: inline-block;
}

.center-heading h2::before,
.center-heading h2::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 128px;
  height: 1px;
  background: rgba(0, 0, 0, 0.28);
}

.center-heading h2::before {
  right: calc(100% + 36px);
}

.center-heading h2::after {
  left: calc(100% + 36px);
}

.reveal {
  opacity: 0;
  transition: opacity 0.72s ease, transform 0.72s ease;
  transition-delay: var(--delay, 0ms);
}

.reveal-up {
  transform: translateY(48px);
}

.reveal-left {
  transform: translateX(-58px);
}

.reveal-right {
  transform: translateX(58px);
}

.section.is-active .reveal {
  opacity: 1;
  transform: translate(0, 0);
}

.next-section {
  position: absolute;
  left: 50%;
  bottom: 26px;
  z-index: 8;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.18);
  transform: translateX(-50%);
  animation: arrowFloat 2.5s linear infinite;
}

.next-section svg {
  width: 28px;
  height: 28px;
}

@keyframes arrowFloat {
  0%,
  100% {
    bottom: 26px;
  }

  50% {
    bottom: 38px;
  }
}

.section-dots {
  position: fixed;
  left: 34px;
  top: 50%;
  z-index: 40;
  display: grid;
  gap: 13px;
  transform: translateY(-50%);
}

.section-dots button {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: rgba(255, 255, 255, 0.92);
  transition: background 0.25s ease, border 0.25s ease, transform 0.25s ease;
}

.section-dots button.is-active {
  background: transparent;
  border-color: #fff;
  transform: scale(1.18);
}

.hero {
  color: #fff;
  background: #07090d;
}

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

.hero-slide {
  opacity: 0;
  background-position: center;
  background-size: cover;
  transform: scale(1.04);
  transition: opacity 1s ease, transform 6s linear;
}

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

.hero-shade {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.76), rgba(0, 0, 0, 0.34) 48%, rgba(0, 0, 0, 0.72)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.28), rgba(0, 0, 0, 0.2));
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero .eyebrow {
  color: #fff;
}

.hero-title {
  margin: 0;
  color: var(--red);
  font-size: 64px;
  line-height: 1.05;
  font-weight: 900;
  text-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.hero-subtitle {
  max-width: 920px;
  margin: 22px auto 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: 22px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-top: 36px;
}

.primary-action,
.ghost-action {
  min-width: 156px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 700;
}

.primary-action {
  color: #fff;
  background: var(--red);
}

.primary-action:hover {
  background: var(--deep-red);
}

.ghost-action {
  border: 1px solid rgba(255, 255, 255, 0.72);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.primary-action svg,
.ghost-action svg {
  width: 19px;
  height: 19px;
}

.hero-pager {
  position: absolute;
  left: 50%;
  bottom: 92px;
  display: flex;
  gap: 12px;
  transform: translateX(-50%);
}

.hero-pager button {
  width: 72px;
  height: 3px;
  background: rgba(255, 255, 255, 0.55);
  transition: background 0.25s ease, width 0.25s ease;
}

.hero-pager button.is-active {
  width: 90px;
  background: var(--red);
}

.about .section-bg {
  background-image: url("./assets/images/about-bg.jpg?v=20260711165546");
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 520px;
  grid-template-rows: auto auto auto;
  column-gap: 58px;
  align-content: center;
}

.about .section-heading {
  grid-column: 1 / 3;
  text-align: center;
  margin-bottom: 34px;
}

.about .lead {
  margin: 0 auto;
}

.about-copy {
  padding: 22px 0 0 36px;
  border-left: 4px solid var(--red);
}

.about-copy p {
  color: #303743;
  font-size: 16px;
  line-height: 2;
  text-indent: 2em;
}

.factory-panel {
  position: relative;
  height: 320px;
  padding: 18px;
  background: #161b22;
  box-shadow: 0 26px 52px rgba(0, 0, 0, 0.18);
}

.factory-panel::before {
  content: "";
  position: absolute;
  inset: 11px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  pointer-events: none;
}

.factory-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-badge {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: var(--red);
  transform: translate(-50%, -50%);
  box-shadow: 0 10px 24px rgba(214, 1, 7, 0.35);
}

.play-badge svg {
  width: 30px;
  height: 30px;
}

.factory-note {
  position: absolute;
  right: 0;
  bottom: 28px;
  display: grid;
  padding: 16px 22px;
  color: #fff;
  background: rgba(214, 1, 7, 0.9);
}

.factory-note strong {
  font-size: 18px;
}

.factory-note span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.8);
}

.stat-list {
  grid-column: 1 / 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
}

.stat-list li {
  text-align: center;
  padding: 18px 10px 20px;
  border-top: 3px solid var(--red);
  background: rgba(255, 255, 255, 0.72);
}

.stat-list strong {
  display: block;
  color: var(--red);
  font-size: 44px;
  line-height: 1.1;
  font-weight: 900;
}

.stat-list span {
  display: block;
  margin-top: 9px;
  color: #2e3541;
  font-size: 16px;
}

.products .section-bg {
  background-image: url("./assets/images/product-bg.jpg?v=20260711165546");
}

.products .section-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-head {
  display: grid;
  grid-template-columns: 280px 300px 1fr;
  align-items: center;
  gap: 26px;
  margin-bottom: 30px;
}

.product-head h2 {
  margin-bottom: 0;
}

.seal {
  display: flex;
  align-items: center;
  gap: 15px;
}

.seal span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--red);
  border: 1px solid var(--red);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 800;
  transition: transform 0.5s ease, color 0.5s ease, background 0.5s ease;
}

.seal span:nth-child(2n) {
  color: #fff;
  background: var(--red);
}

.seal:hover span {
  transform: rotateY(360deg);
}

.category-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
  color: #283040;
}

.category-line a {
  white-space: nowrap;
}

.category-line a:hover {
  color: var(--red);
}

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

.product-card {
  position: relative;
  display: block;
  min-height: 168px;
  overflow: hidden;
  color: inherit;
  background: #fff;
}

.product-card img {
  width: 100%;
  height: 100%;
  min-height: 168px;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.product-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px;
  text-align: center;
  color: #fff;
  background: rgba(214, 1, 7, 0.72);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.product-overlay strong {
  font-size: 18px;
}

.product-overlay span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.86);
}

.product-card:hover img {
  transform: scale(1.1);
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.product-card-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 26px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--red));
}

.product-card-text svg {
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
}

.product-card-text strong {
  font-size: 22px;
}

.product-card-text span {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.75;
}

.strength {
  color: #fff;
}

.strength .section-bg {
  background-image: url("./assets/images/case-bg.jpg?v=20260711165546");
}

.strength .section-bg::after {
  background: rgba(0, 0, 0, 0.68);
}

.strength .section-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.strength .center-heading h2::before,
.strength .center-heading h2::after {
  background: rgba(255, 255, 255, 0.4);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  margin: 92px 0 0;
  padding: 0;
  list-style: none;
}

.strength-item {
  min-height: 294px;
  padding: 0 18px;
  text-align: center;
}

.strength-link {
  display: block;
  height: 100%;
  color: inherit;
}

.strength-icon {
  position: relative;
  width: 110px;
  height: 110px;
  display: grid;
  place-items: center;
  margin: 0 auto 32px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 50%;
  transition: transform 0.45s ease, background 0.45s ease, border 0.45s ease;
}

.strength-icon::after {
  content: "";
  position: absolute;
  inset: -13px;
  border: 5px solid rgba(214, 1, 7, 0.45);
  border-radius: 50%;
  opacity: 0;
  transform: translateY(16px) scale(0.82);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.strength-icon svg {
  width: 42px;
  height: 42px;
}

.strength-item h3 {
  margin-bottom: 18px;
  font-size: 24px;
}

.strength-item p {
  display: none;
  margin: 0;
  color: #ff3b3f;
  font-size: 15px;
  line-height: 1.8;
}

.strength-item:hover .strength-icon {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-12px) rotate(12deg);
}

.strength-item:hover .strength-icon::after {
  opacity: 1;
  transform: translateY(-2px) scale(1);
}

.strength-item:hover h3 {
  color: #ff3b3f;
}

.strength-item:hover p {
  display: block;
}

.cases .section-bg {
  background-image: url("./assets/images/case-bg.jpg?v=20260711165546");
}

.cases .section-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 44px;
}

.case-card {
  display: block;
  color: inherit;
  border-bottom: 3px solid var(--red);
  background: #fff;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 40px rgba(0, 0, 0, 0.24);
}

.case-image {
  position: relative;
  height: 214px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.case-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.case-image span {
  position: absolute;
  inset: 50% auto auto 50%;
  z-index: 2;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: var(--red);
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.75);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.case-card:hover .case-image img {
  transform: scale(1.1);
}

.case-card:hover .case-image::after {
  opacity: 1;
}

.case-card:hover .case-image span {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.case-copy {
  min-height: 108px;
  padding: 18px 18px 20px;
  transition: background 0.3s ease;
}

.case-copy h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.case-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.case-card:hover .case-copy {
  color: #fff;
  background: var(--red);
}

.case-card:hover .case-copy p {
  color: rgba(255, 255, 255, 0.82);
}

.news .section-bg {
  background-image: url("./assets/images/news-bg.jpg?v=20260711165546");
}

.news .section-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-layout {
  gap: 36px;
}

.news-top {
  display: grid;
  grid-template-columns: 320px 1fr;
  align-items: start;
  gap: 58px;
}

.news-title h2 {
  margin-bottom: 0;
}

.news-lists {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  padding-top: 8px;
  border-top: 1px solid rgba(16, 19, 24, 0.35);
}

.news-lists ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-lists li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 34px;
  gap: 18px;
}

.news-lists strong {
  font-size: 18px;
}

.news-lists a {
  overflow: hidden;
  color: #29313c;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-lists a:hover {
  color: var(--red);
}

.news-lists time {
  flex: 0 0 auto;
  color: #7a8492;
  font-size: 13px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.news-card {
  position: relative;
  display: block;
  overflow: hidden;
  min-height: 320px;
  background: #fff;
}

.news-card img {
  width: 100%;
  height: 176px;
  object-fit: cover;
}

.news-card div {
  padding: 18px 20px;
}

.news-card h3 {
  min-height: 52px;
  margin-bottom: 10px;
  font-size: 17px;
  line-height: 1.55;
}

.news-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.news-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--red);
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.news-card::before {
  content: "查看更多";
  position: absolute;
  left: 22px;
  bottom: 24px;
  z-index: 2;
  color: #fff;
  font-weight: 800;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.news-card:hover::after {
  transform: translateY(0);
}

.news-card:hover::before {
  opacity: 1;
  transform: translateY(0);
}

.partners {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.78)),
    url("./assets/images/product-bg.jpg?v=20260711165546") center / cover;
}

.partners .section-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.partner-board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 52px auto 0;
  width: min(980px, 100%);
  border: 1px solid rgba(21, 30, 44, 0.12);
  background: rgba(255, 255, 255, 0.78);
  overflow: hidden;
}

.partner-board button,
.partner-board a {
  position: relative;
  z-index: 2;
  height: 104px;
  display: grid;
  place-items: center;
  color: #222b37;
  border-right: 1px solid rgba(21, 30, 44, 0.12);
  border-bottom: 1px solid rgba(21, 30, 44, 0.12);
  font-size: 18px;
  font-weight: 800;
  transition: color 0.25s ease;
}

.partner-board button:hover,
.partner-board a:hover {
  color: #fff;
}

.partner-highlight {
  position: absolute;
  z-index: 1;
  width: 25%;
  height: 104px;
  background: var(--red);
  transform: translate(0, 0);
  transition: transform 0.22s ease;
}

.contact {
  color: #fff;
}

.contact .section-bg {
  background-image: url("./assets/images/contact-bg.jpg?v=20260711165546");
}

.contact .section-bg::after {
  background: rgba(0, 0, 0, 0.7);
}

.contact-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0 0 58px;
  padding: 0;
  list-style: none;
}

.contact-cards li {
  text-align: center;
  padding: 28px 14px 18px;
}

.contact-cards span {
  width: 92px;
  height: 92px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: 50%;
  transition: transform 0.45s ease, background 0.45s ease, border 0.45s ease;
}

.contact-cards svg {
  width: 40px;
  height: 40px;
}

.contact-cards li:hover span {
  border-color: var(--red);
  background: var(--red);
  transform: rotateY(180deg);
}

.contact-cards h3 {
  margin-bottom: 12px;
  font-size: 20px;
}

.contact-cards p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.8;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 24px 36px 30px;
  background: rgba(0, 0, 0, 0.43);
}

.footer-nav div {
  display: grid;
  gap: 10px;
  justify-items: center;
  text-align: center;
}

.footer-nav strong {
  display: block;
  width: 100%;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.32);
  font-size: 18px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.78);
}

.footer-nav a:hover {
  color: #ff4a4e;
}

.copyright {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.76);
}

.copyright p {
  margin: 0;
}

.floating-contact {
  position: fixed;
  right: 1px;
  top: 50%;
  z-index: 45;
  display: grid;
  gap: 6px;
  transform: translateY(-50%);
}

.float-item {
  position: relative;
}

.float-item > button {
  width: 52px;
  min-height: 52px;
  display: grid;
  place-items: center;
  color: #787f8b;
  border: 1px solid #d9dde4;
  background: #fff;
}

.float-item > button svg {
  width: 24px;
  height: 24px;
}

.float-item > button span {
  display: none;
  color: var(--red);
  font-size: 13px;
  line-height: 1.35;
}

.float-item:hover > button {
  border-color: var(--red);
}

.float-item:hover > button svg {
  display: none;
}

.float-item:hover > button span {
  display: block;
}

.float-panel {
  position: absolute;
  top: -12px;
  right: 66px;
  width: 230px;
  display: none;
  padding: 18px;
  border-top: 4px solid var(--red);
  color: #242b36;
  background: #fff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.float-panel::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 28px;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 10px solid #fff;
}

.float-panel strong {
  color: var(--red);
  font-size: 18px;
}

.float-panel p {
  margin: 8px 0 14px;
  color: #69717f;
  line-height: 1.7;
}

.float-panel a {
  color: var(--blue);
  font-weight: 800;
}

.float-item:hover .float-panel {
  display: block;
}

.to-top {
  display: none;
}

.to-top.is-visible {
  display: grid;
}

@media (max-width: 1480px) {
  :root {
    --header-height: 76px;
  }

  .site-header {
    padding: 0 36px;
    gap: 22px;
  }

  .main-nav {
    gap: 24px;
  }

  .brand-copy strong {
    font-size: 22px;
  }

  .header-phone strong {
    font-size: 18px;
  }

  .hero-title {
    font-size: 56px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .section-inner {
    width: min(1120px, calc(100% - 64px));
  }

  .about-grid {
    grid-template-columns: 1fr 470px;
    gap: 42px;
  }

  .factory-panel {
    height: 292px;
  }

  .strength-grid {
    margin-top: 68px;
  }

  .strength-icon {
    width: 96px;
    height: 96px;
  }

  .case-image {
    height: 184px;
  }

  .news-card {
    min-height: 292px;
  }

  .news-card img {
    height: 152px;
  }
}

@media (max-width: 1180px) {
  .main-nav {
    gap: 16px;
  }

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

  .header-phone {
    min-width: 194px;
  }

  .header-phone span {
    display: none;
  }

  .section-dots {
    left: 18px;
  }

  .product-head {
    grid-template-columns: 220px 250px 1fr;
  }

  .product-grid,
  .case-grid,
  .news-grid {
    gap: 14px;
  }

  .strength-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px 0;
    margin-top: 38px;
  }

  .strength-item {
    min-height: 210px;
  }

  .strength-item p {
    display: block;
    color: rgba(255, 255, 255, 0.72);
  }
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .site-header {
    height: 64px;
    padding: 0 18px;
  }

  .site-header.is-compact {
    height: 64px;
  }

  .brand {
    min-width: 0;
  }

  .brand-logo {
    width: 60px;
    height: 42px;
    padding: 2px;
  }

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

  .brand-copy small {
    display: none;
  }

  .header-phone {
    margin-left: auto;
    min-width: 0;
    gap: 5px;
  }

  .header-phone svg {
    width: 18px;
    height: 18px;
  }

  .header-phone strong {
    display: inline;
    font-size: 13px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    right: 0;
    width: min(76vw, 320px);
    height: calc(100vh - 64px);
    display: grid;
    align-content: start;
    justify-content: stretch;
    gap: 0;
    padding: 24px;
    background: rgba(0, 0, 0, 0.9);
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .main-nav a {
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 16px;
  }

  .main-nav a::after {
    display: none;
  }

  .page-shell {
    height: auto;
    transform: none !important;
    transition: none;
  }

  .section {
    height: auto;
    min-height: auto;
    overflow: visible;
  }

  .section-inner {
    width: min(100% - 28px, 680px);
    height: auto;
    padding-top: 96px;
    padding-bottom: 68px;
  }

  .section-dots,
  .floating-contact,
  .next-section,
  .hero-pager {
    display: none;
  }

  .hero {
    min-height: 720px;
  }

  .hero-inner {
    min-height: 720px;
  }

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

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-actions {
    flex-wrap: wrap;
  }

  h2 {
    font-size: 30px;
  }

  .center-heading h2::before,
  .center-heading h2::after {
    display: none;
  }

  .about-grid,
  .news-top {
    display: block;
  }

  .about .section-heading {
    text-align: left;
    margin-bottom: 24px;
  }

  .about .lead {
    margin: 0;
  }

  .about-copy {
    padding: 0 0 0 18px;
    margin-bottom: 26px;
  }

  .factory-panel {
    height: 260px;
  }

  .stat-list,
  .product-grid,
  .case-grid,
  .news-grid,
  .contact-cards,
  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-head {
    display: block;
  }

  .seal {
    margin: 18px 0;
  }

  .category-line {
    justify-content: flex-start;
  }

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

  .strength-item {
    padding: 0 12px;
  }

  .news-lists {
    grid-template-columns: 1fr;
    margin: 22px 0 26px;
  }

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

  .partner-highlight {
    display: none;
  }

  .partner-board button,
  .partner-board a {
    height: 82px;
  }

  .copyright {
    display: block;
    text-align: center;
  }

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

@media (max-width: 560px) {
  .section-inner {
    width: calc(100% - 24px);
  }

  .hero {
    min-height: 660px;
  }

  .hero-inner {
    min-height: 660px;
  }

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

  .hero-subtitle {
    font-size: 16px;
    line-height: 1.75;
  }

  .primary-action,
  .ghost-action {
    width: 100%;
  }

  .stat-list,
  .product-grid,
  .case-grid,
  .news-grid,
  .contact-cards,
  .footer-nav,
  .strength-grid,
  .partner-board {
    grid-template-columns: 1fr;
  }

  .factory-panel {
    height: 220px;
    padding: 10px;
  }

  .factory-panel::before,
  .factory-note {
    display: none;
  }

  .product-card,
  .product-card img {
    min-height: 210px;
  }

  .case-image {
    height: 220px;
  }

  .footer-nav {
    padding: 22px 18px 28px;
  }
}