@font-face {
  font-family: 'OPPOSans';
  src: url('/assets/fonts/OPPO Sans 4.0.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #122235;
  --ink-soft: #253a50;
  --blue: #1769e0;
  --blue-dark: #0d4ea9;
  --cyan: #00a7b5;
  --lime: #b8e34b;
  --paper: #f4f7fb;
  --white: #fff;
  --muted: #69798b;
  --line: #dfe6ee;
  --line-dark: rgba(255, 255, 255, .18);
  --radius: 8px;
  --max: 1280px;
  --pad: max(24px, calc((100vw - var(--max)) / 2));
  --display: "OPPOSans", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --body: "OPPOSans", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: -60px;
  left: 16px;
  padding: 10px 16px;
  border-radius: 6px;
  background: var(--lime);
}

.skip-link:focus {
  top: 12px;
}

.section-shell {
  width: 100%;
  max-width: calc(var(--max) + 48px);
  margin-inline: auto;
  padding-inline: 24px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

.section-label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(0, 167, 181, .1);
}

.section-label.light {
  color: #d9edf5;
}

.section-label.light::before {
  background: var(--lime);
  box-shadow: 0 0 0 5px rgba(184, 227, 75, .12);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}

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

.site-header {
  position: fixed;
  z-index: 1000;
  top: 14px;
  left: max(16px, calc((100vw - 1380px) / 2));
  right: max(16px, calc((100vw - 1380px) / 2));
  height: 66px;
  display: grid;
  grid-template-columns: 240px 1fr auto;
  align-items: center;
  padding: 0 50px;
  border: 1px solid rgba(218, 228, 237, .9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 12px 35px rgba(27, 51, 78, .08);
  backdrop-filter: blur(18px);
  transition: .25s ease;
}

.site-header.scrolled {
  top: 8px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 12px 32px rgba(27, 51, 78, .12);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
}

.brand img {
  /* width: 38px; */
  height: 50px;
}

.brand .brand-logo {
  width: auto;
  height: 50px;
  object-fit: contain;
}

.brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand strong {
  color: var(--ink);
  font-size: 17px;
}

.brand small {
  margin-top: 3px;
  color: #7a8896;
  font-size: 10px;
}

.desktop-nav {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  align-self: stretch;
}

.desktop-nav > a {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0 20px;
  height: 100%;
  color: #5d6d7e;
  font-size: 14px;
  transition: color .2s;
}

.desktop-nav > .nav-item-dropdown {
  display: flex;
  align-items: center;
  height: 100%;
}

.desktop-nav > .nav-item-dropdown > a {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0 20px;
  height: 100%;
  color: #5d6d7e;
  font-size: 14px;
  transition: color .2s;
}

.desktop-nav > a:hover,
.desktop-nav > a.active,
.desktop-nav > .nav-item-dropdown > a:hover,
.desktop-nav > .nav-item-dropdown > a.active {
  color: var(--ink);
}

.desktop-nav > a::after,
.desktop-nav > .nav-item-dropdown > a::after {
  content: "";
  position: absolute;
  bottom: 11px;
  left: 50%;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--blue);
  transition: .2s;
}

.desktop-nav > a:hover::after,
.desktop-nav > a.active::after,
.desktop-nav > .nav-item-dropdown > a:hover::after,
.desktop-nav > .nav-item-dropdown > a.active::after {
  left: 32%;
  width: 36%;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 38px;
  padding: 0 16px;
  border-radius: 7px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.header-cta span {
  color: var(--lime);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: none;
  position: relative;
  z-index: 1001;
  -webkit-tap-highlight-color: transparent;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 6px auto;
  background: #333;
  transition: transform .3s, opacity .3s;
}

.menu-toggle.active span:first-child {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:last-child {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  z-index: 990;
  top: 0;
  right: 0;
  bottom: 0;
  width: 80%;
  max-width: 320px;
  padding: 70px 28px 30px;
  background: #fff;
  box-shadow: -4px 0 24px rgba(0, 0, 0, .12);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .3s cubic-bezier(.4, 0, .2, 1);
  -webkit-tap-highlight-color: transparent;
  visibility: hidden;
}

.mobile-menu.open {
  transform: translateX(0);
  visibility: visible;
}

/* 遮罩层 - 独立处理 */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .4);
  z-index: 989;
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}

.mobile-menu-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
}

.mobile-menu a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  font-size: 17px;
  font-weight: 500;
  color: #333;
  transition: color .2s;
  -webkit-tap-highlight-color: transparent;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: #1769e0;
}

.mobile-menu a span {
  color: #ccc;
  font-size: 12px;
  transition: transform .3s;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--blue);
  border-radius: 7px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  transition: transform .2s, background .2s, box-shadow .2s;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--blue-dark);
  box-shadow: 0 12px 26px rgba(23, 105, 224, .22);
}

.button-light {
  border-color: #fff;
  background: #fff;
  color: var(--ink);
}

.button-light:hover {
  background: var(--lime);
  border-color: var(--lime);
  box-shadow: 0 12px 26px rgba(0, 0, 0, .16);
}

.button-secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
  box-shadow: none;
}

.button-secondary:hover {
  border-color: #aebdcb;
  background: #f9fbfd;
  box-shadow: none;
}

.ghost-link,
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.ghost-link {
  color: #dbe8f1;
}

.ghost-link span,
.text-link span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
}

.text-link {
  color: var(--blue);
}

.text-link span {
  background: #e6eefc;
}

.round-link {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid #b8c7d4;
  border-radius: 50%;
  font-size: 22px;
  transition: .2s;
}

.round-link:hover {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
  transform: rotate(-35deg);
}

.round-link.light {
  border-color: rgba(255, 255, 255, .4);
  color: #fff;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 44px;
}

.section-head h2 {
  margin: 12px 0 0;
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: 0;
}

.section-head>p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
}

.section-head.light {
  color: #fff;
}
/* Shared inner hero */
.inner-hero {
  min-height: 560px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: end;
  gap: 8vw;
  padding: 150px var(--pad) 76px;
  background: #eaf0f5;
}

.inner-hero h1 {
  margin: 18px 0 20px;
  font-size: clamp(48px, 5.6vw, 78px);
  line-height: 1.15;
  letter-spacing: 0;
}

.inner-hero>div>p {
  max-width: 650px;
  color: var(--muted);
  font-size: 18px;
}

.inner-hero>aside {
  align-self: end;
}

.catalog-hero aside {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid #cedae4;
  border-radius: var(--radius);
  background: #cedae4;
}

.catalog-hero aside div {
  min-height: 130px;
  padding: 22px;
  background: rgba(255, 255, 255, .76);
}

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

.catalog-hero aside strong {
  color: var(--blue);
  font-size: 20px;
}

.catalog-hero aside span {
  margin-top: 28px;
  color: var(--muted);
  font-size: 12px;
}

/* Product catalog */
/* Footer样式 - 效果图风格 */
.site-footer {
  background: #fff;
  color: #333;
  padding: 0;
  border-top: 1px solid #eee;
}

.footer-action {
  display: none;
}

.footer-main {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 50px;
  padding: 40px 0;
  width: 100%;
  max-width: calc(var(--max) + 48px);
  margin-inline: auto;
  padding-inline: 24px;
}

.footer-bottom {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 18px 24px;
  background: #f8f9fa;
  color: #9299a2;
  font-size: 12px;
  border-top: 1px solid #eee;
}

.footer-bottom a {
  color: #5d6d7e;
  text-decoration: none;
  transition: color .2s;
}

.footer-bottom a:hover {
  color: #1769e0;
}

.floating-contact {
  position: fixed;
  z-index: 80;
  right: 18px;
  bottom: 22px;
  display: flex;
  width: 62px;
  height: 62px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  box-shadow: 0 12px 28px rgba(18, 34, 53, .22);
  font-size: 11px;
  font-weight: 700;
}

.floating-contact b {
  line-height: 1;
}

@keyframes floatMachine {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-9px);
  }
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 210px 1fr auto;
  }

  .desktop-nav > a,
  .desktop-nav > .nav-item-dropdown > a {
    padding: 0 12px;
  }

  .home-hero {
    grid-template-columns: 1fr 1fr;
  }

  .home-hero-visual img {
    width: 700px;
  }

  .visual-chip {
    display: none;
  }

  .home-product-tile,
  .home-product-tile:first-child,
  .home-product-tile:nth-child(5) {
    grid-column: span 6;
  }

  .home-product-tile:first-child>a,
  .home-product-tile:nth-child(5)>a {
    grid-template-columns: 1fr;
  }

  .catalog-layout {
    grid-template-columns: 210px 1fr;
    gap: 30px;
  }

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

  .commerce-product {
    gap: 36px;
  }

  .product-info-layout {
    gap: 45px;
  }
}

@media (max-width: 820px) {
  :root {
    --pad: 24px;
  }

  .site-header {
    top: 10px;
    right: 12px;
    left: 12px;
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .home-hero {
    min-height: 940px;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    padding-top: 125px;
  }

  .home-hero-copy {
    max-width: 680px;
  }

  .home-hero-visual {
    min-height: 420px;
  }

  .home-hero-visual img {
    width: 760px;
  }

  .hero-proof {
    grid-template-columns: 1fr 1fr;
  }

  .hero-proof div:nth-child(2) {
    border-right: 0;
  }

  .home-intro,
  .inner-hero,
  .solution-index,
  .service-overview {
    grid-template-columns: 1fr;
  }

  .intro-copy {
    max-width: 620px;
  }

  .inner-hero {
    min-height: 600px;
    gap: 35px;
    padding-top: 135px;
  }

  .inner-hero aside {
    width: 100%;
  }

  .catalog-hero aside {
    max-width: 650px;
  }

  .solution-showcase,
  .value-cards {
    grid-template-columns: 1fr;
  }

  .solution-panel {
    border-right: 0;
  }

  .process-track,
  .method-grid,
  .delivery-strip {
    grid-template-columns: 1fr 1fr;
  }

  .process-track>div:nth-child(2),
  .method-grid>div:nth-child(2),
  .delivery-strip>div:nth-child(2) {
    border-right: 0;
  }

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

  .catalog-sidebar {
    position: static;
  }

  .catalog-sidebar>div:first-child {
    display: none;
  }

  .catalog-sidebar nav {
    flex-direction: row;
    overflow-x: auto;
    margin-top: 0;
    border: 0;
    gap: 8px;
    scrollbar-width: none;
  }

  .catalog-sidebar nav a {
    min-width: max-content;
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
  }

  .catalog-sidebar nav a.active {
    background: var(--ink);
    color: #fff;
  }

  .catalog-help {
    display: none;
  }

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

  .product-purchase {
    position: static;
  }

  .product-main-media,
  .product-main-media img {
    min-height: 480px;
  }

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

  .product-tabs-nav {
    top: 86px;
  }

  .solution-index {
    gap: 50px;
  }

  .solution-intro,
  .service-copy {
    position: static;
  }

  .solution-cases {
    gap: 48px;
  }

  .solution-case {
    gap: 28px;
  }

  .solution-detail-body {
    grid-template-columns: 1fr;
  }

  .solution-flow {
    position: static;
  }

  .sol-detail {
    padding-top: 60px;
  }

  .sol-related-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .news-detail-layout aside {
    display: none;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 40px;
    padding-bottom: 80px;
  }

  .about-sidebar {
    position: static;
  }

  .about-sidebar nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .about-sidebar nav a {
    border-bottom: 0;
    padding: 8px 16px;
    border: 1px solid #e5e5e5;
    border-radius: 6px;
    font-size: 13px;
  }

  .about-sidebar nav a.active {
    background: #2c6fe8;
    color: #fff;
    border-color: #2c6fe8;
  }

  .about-story-grid {
    grid-template-columns: 1fr;
  }

  .about-visual {
    min-height: 400px;
  }

  .service-overview {
    gap: 45px;
  }

  .contact-page {
    grid-template-columns: 1fr;
  }

  .contact-side {
    min-height: 700px;
    padding-top: 130px;
  }

  .contact-form {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 20px;
  }
}

@media (max-width: 560px) {
  :root {
    --pad: 20px;
  }

  .section-shell {
    padding-inline: 0;
  }

  .site-header {
    height: 60px;
    padding: 0 13px;
  }

  .brand img {
    /* width: 34px; */
    height: 50px;
  }

  .brand .brand-logo {
    height: 50px;
  }

  .brand small {
    display: none;
  }

  .brand strong {
    font-size: 16px;
  }

  .section-head {
    align-items: flex-start;
    margin-bottom: 30px;
  }

  .section-head h2 {
    font-size: 34px;
  }

  .round-link {
    width: 46px;
    height: 46px;
    flex: 0 0 auto;
  }

  .home-hero {
    min-height: 820px;
    padding: 112px 20px 130px;
  }

  .home-hero h1 {
    font-size: 48px;
  }

  .home-hero-copy>p {
    font-size: 15px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .home-hero-visual {
    min-height: 300px;
    margin: 0 -60px;
  }

  .home-hero-visual img {
    width: 620px;
  }

  .hero-proof {
    bottom: 18px;
    right: 20px;
    left: 20px;
  }

  .hero-proof div {
    padding: 12px 8px 0;
    gap: 8px;
  }

  .hero-proof span {
    font-size: 11px;
  }

  .home-intro,
  .home-products,
  .home-process,
  .home-news,
  .about-story {
    padding-top: 70px;
    padding-bottom: 75px;
  }

  .intro-heading h2 {
    font-size: 35px;
  }

  .intro-copy p {
    font-size: 16px;
  }

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

  .home-product-tile,
  .home-product-tile:first-child,
  .home-product-tile:nth-child(5) {
    grid-column: auto;
  }

  .tile-media {
    min-height: 230px;
  }

  .home-solutions,
  .solution-method,
  .about-values {
    padding: 75px 0;
  }

  .solution-panel {
    grid-template-columns: 30px 1fr 18px;
    min-height: 160px;
    padding: 22px 0;
  }

  .process-track,
  .method-grid,
  .delivery-strip {
    grid-template-columns: 1fr;
  }

  .process-track>div,
  .process-track>div:not(:first-child),
  .method-grid>div,
  .method-grid>div:first-child,
  .delivery-strip>div {
    min-height: 155px;
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .method-grid>div,
  .method-grid>div:first-child {
    border-color: var(--line-dark);
    padding-inline: 0;
  }

  .process-track h3,
  .method-grid h3,
  .delivery-strip h3 {
    margin-top: 26px;
  }

  .home-news-grid {
    grid-template-columns: 1fr;
  }

  .inner-hero {
    min-height: 540px;
    padding: 120px 20px 55px;
  }

  .inner-hero h1 {
    font-size: 43px;
  }

  .inner-hero>div>p {
    font-size: 15px;
  }

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

  .catalog-hero aside div:last-child {
    grid-column: 1/-1;
  }

  .catalog-hero aside div {
    min-height: 90px;
    padding: 15px;
  }

  .catalog-hero aside span {
    margin-top: 10px;
  }

  .catalog-layout {
    padding-top: 40px;
    padding-bottom: 80px;
  }

  .catalog-toolbar span {
    display: none;
  }

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

  .catalog-media {
    aspect-ratio: 1.35;
  }

  .catalog-copy p {
    min-height: 0;
  }

  .breadcrumb {
    padding-top: 96px;
    overflow: hidden;
    white-space: nowrap;
  }

  .commerce-product {
    gap: 28px;
    padding-bottom: 60px;
  }

  .product-main-media,
  .product-main-media img {
    min-height: 360px;
  }

  .product-purchase h1 {
    font-size: 37px;
  }

  .purchase-benefits {
    grid-template-columns: 1fr;
  }

  .purchase-benefits>div {
    min-height: 75px;
    display: grid;
    grid-template-columns: 28px 1fr;
    align-items: center;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .purchase-benefits b {
    margin-top: 0;
  }

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

  .product-tabs-nav {
    top: 78px;
    gap: 20px;
    overflow-x: auto;
  }

  .product-info-layout {
    padding: 55px 0;
  }

  .spec-panel {
    padding: 22px;
  }

  .related-products {
    padding-bottom: 80px;
  }

  .solution-index {
    padding-top: 70px;
    padding-bottom: 80px;
  }

  .solution-intro h2 {
    font-size: 30px;
  }

  .solution-case,
  .solution-case:nth-child(even) {
    grid-template-columns: 1fr;
  }

  .solution-case:nth-child(even) .case-media {
    order: 0;
  }

  .case-copy h2 {
    font-size: 26px;
  }

  .solution-detail-hero {
    min-height: 590px;
    padding-top: 125px;
  }

  .solution-detail-hero h1 {
    font-size: 43px;
  }

  .solution-detail-body {
    padding-top: 60px;
    padding-bottom: 80px;
  }

  .article-conversion {
    padding: 24px;
  }

  .sol-detail {
    padding-top: 50px;
    padding-bottom: 40px;
  }

  .sol-detail-nav {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .sol-related-grid {
    grid-template-columns: 1fr;
  }

  .sol-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

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

  .news-detail-head {
    padding-top: 120px;
  }

  .news-detail-head h1 {
    font-size: 40px;
  }

  .news-detail-layout {
    padding-top: 50px;
    padding-bottom: 80px;
  }

  .about-layout {
    padding-top: 30px;
    padding-bottom: 60px;
  }

  .about-story-grid {
    gap: 38px;
  }

  .about-visual {
    min-height: 300px;
  }

  .value-cards {
    grid-template-columns: 1fr;
  }

  .value-cards>div {
    min-height: 190px;
  }

  .value-cards h3 {
    margin-top: 38px;
  }

  .service-list {
    grid-template-columns: 1fr;
  }

  .service-promise .section-shell {
    grid-template-columns: 1fr;
  }

  .service-promise div div,
  .service-promise div div:first-child {
    padding: 15px 0;
    border-right: 0;
    border-bottom: 1px solid #c5d2da;
  }

  .downloads-page {
    padding-top: 45px;
    padding-bottom: 80px;
  }

  .download-heading {
    display: none;
  }

  .download-items a {
    grid-template-columns: 50px 1fr 20px;
    gap: 12px;
    padding: 18px 14px;
  }

  .download-items p {
    display: none;
  }

  .contact-side {
    min-height: 640px;
    padding: 120px 20px 60px;
  }

  .contact-side h1 {
    font-size: 42px;
  }

  .contact-side dl {
    grid-template-columns: 1fr;
  }

  .contact-side dl div:last-child {
    grid-column: auto;
  }

  .contact-form {
    padding: 70px 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-submit {
    align-items: flex-start;
    flex-direction: column;
  }

  .not-found {
    grid-template-columns: 1fr;
    gap: 35px;
    padding-top: 110px;
  }

  .not-found-code {
    font-size: 120px;
  }

  .not-found-code i {
    width: 42px;
    height: 42px;
  }

  .not-found h1 {
    font-size: 36px;
  }

  .floating-contact {
    right: 14px;
    bottom: 16px;
    width: 56px;
    height: 56px;
  }

  .sol-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

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

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

  .home-hero-visual img {
    animation: none;
  }
}

/* 首页参考站布局：大图首屏 + 图片主导的分区节奏 *//* Reference-site interaction polish */
.ref-hero-content {
  animation: refHeroIn .8s cubic-bezier(.22, .61, .36, 1) both;
}

.ref-hero-dots i {
  transition: width .25s ease, background .25s ease;
}

.ref-hero-dots i.active {
  width: 78px;
}

.ref-product-card:focus-within,
.ref-category-grid a:focus-visible,
.ref-solution-card:focus-visible,
.ref-news-grid article:focus-within {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.site-header a:focus-visible,
.button:focus-visible,
.ref-more:focus-visible,
.floating-contact:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

@keyframes refHeroIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 700px) {
  .site-page-home .site-header {
    padding-inline: 16px;
  }

  .site-page-home .header-cta {
    display: none;
  }

  .ref-hero-dots i.active {
    width: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ref-hero-content {
    animation: none;
  }
}

/* Wonderful reference direction: light home/lifestyle commerce *//* Keep inner pages in the same light editorial commerce language */
body.site-page:not(.site-page-home) {
  background: #F7F8FA;
  color: #292929;
}

body.site-page:not(.site-page-home) .site-header {
  background: rgba(255, 255, 255, .96);
  border-color: #ecebe8;
  box-shadow: 0 3px 18px rgba(40, 34, 24, .06);
}

body.site-page:not(.site-page-home) .site-header .brand strong,
body.site-page:not(.site-page-home) .site-header .brand small,
body.site-page:not(.site-page-home) .desktop-nav > a,
body.site-page:not(.site-page-home) .desktop-nav > .nav-item-dropdown > a {
  color: #2b2b2b;
}

.inner-hero {
  background: #fff;
}

.inner-hero h1,
.section-head h2,
.solution-intro h2,
.case-copy h2,
.news-detail-head h1,
.product-purchase h1,
.contact-side h1 {
  font-weight: 500;
  color: #292929;
}

.home-solutions,
.solution-method,
.about-values,
.ref-stats {
  background: #fff;
  color: #292929;
}

.section-head.light,
.solution-method .section-head.light {
  color: #292929;
}

.section-label.light {
  color: #2c6fe8;
}

.section-label.light::before {
  background: #2c6fe8;
  box-shadow: 0 0 0 5px rgba(44, 111, 232, .1);
}

.method-grid>div,
.value-cards>div {
  border-color: #e7e5e1;
}

.method-grid p,
.value-cards p,
.solution-panel p {
  color: #77746e;
}

.solution-panel {
  border-color: #e7e5e1;
}

.solution-panel:hover {
  background: #F2F3F5;
}

.solution-panel>span,
.method-grid i,
.value-cards i {
  color: #2c6fe8;
}

/* 左侧联系信息 */
.footer-left {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.footer-contact-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9299a2;
  flex-shrink: 0;
}

.footer-contact-icon svg {
  width: 22px;
  height: 22px;
}

.footer-contact-content {
  flex: 1;
}

.footer-contact-label {
  font-size: 13px;
  color: #9299a2;
  margin: 0 0 3px;
}

.footer-contact-value {
  font-size: 15px;
  color: #2d3035;
  margin: 0;
  line-height: 1.5;
}

/* 社交媒体 */
.footer-social {
  margin-top: 8px;
  padding: 18px;
  background: #f8f9fa;
  border-radius: 8px;
  display: flex;
  align-items: center;
}

.footer-social-left{
  display: flex;
  flex-direction: column;
  flex: 1;
}

.footer-social-left p {
  margin: 0;
}

.footer-social-title {
  font-size: 18px;
  font-weight: 600;
  color: #2d3035;
}

.footer-social-desc {
  font-size: 12px;
  color: #9299a2;
}

.footer-social-icons {
  display: flex;
  gap: 12px;
}

.footer-social-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 8px;
  color: #5d6d7e;
  transition: all .2s;
  border: 1px solid #e5e8eb;
}

.footer-social-icon:hover {
  background: #1769e0;
  color: #fff;
  border-color: #1769e0;
}

.footer-social-icon-wrap {
  position: relative;
}

.footer-qr-popup {
  display: none;
  position: absolute;
  bottom: 54px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
  padding: 8px;
  z-index: 10;
  width: 156px;
}

.footer-qr-popup img {
  width: 140px !important;
  height: 140px !important;
  min-width: 140px;
  display: block;
  border-radius: 4px;
  object-fit: contain;
}

.footer-qr-popup::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: #fff;
  box-shadow: 2px 2px 4px rgba(0, 0, 0, .08);
}

.footer-social-icon-wrap:hover .footer-qr-popup {
  display: block;
}

/* 右侧导航链接 */
.footer-links {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  min-width: 0;
}

.footer-links-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.footer-links-title {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #1769e0;
  margin: 0 0 6px;
  text-decoration: none;
  transition: color .2s;
  line-height: 1.4;
}

.footer-links-title:hover {
  color: #0d4ea9;
}

.footer-links-column a {
  font-size: 12px;
  color: #5d6d7e;
  text-decoration: none;
  transition: color .2s;
  line-height: 1.6;
}

.footer-links-column a:hover {
  color: #1769e0;
}

/* 底部版权 */
.footer-bottom {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 18px 24px;
  background: #f8f9fa;
  color: #9299a2;
  font-size: 12px;
  border-top: 1px solid #eee;
}

.footer-bottom a {
  color: #5d6d7e;
  text-decoration: none;
  transition: color .2s;
}

.footer-bottom a:hover {
  color: #1769e0;
}

/* 移动端footer响应式 */
@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 24px;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding-inline: 20px;
  }

  .footer-qr-popup {
    position: fixed;
    bottom: auto;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 9999;
    width: 200px;
    padding: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, .25);
  }

  .footer-qr-popup::after {
    display: none;
  }

  .footer-qr-popup img {
    width: 176px !important;
    height: 176px !important;
    min-width: 176px;
  }

  .footer-qr-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .4);
    z-index: 9998;
    -webkit-tap-highlight-color: transparent;
  }

  .footer-qr-overlay.active {
    display: block;
  }

  body.qr-open {
    overflow: hidden;
  }
}

@media (max-width: 480px) {
  .footer-links {
    grid-template-columns: 1fr;
  }
}

.footer-contact .footer-contact-label {
  color: #9299a2;
  font-size: 13px;
  margin: 0 0 3px;
}

.footer-contact .footer-contact-meta {
  margin-top: 8px;
  color: #9299a2;
  font-size: 12px;
}

.footer-contact .footer-phone {
  color: #2d3035;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: .02em;
  margin-bottom: 16px;
}

.footer-contact .footer-contact-label+.footer-contact-meta {
  margin-top: 4px;
}

.ref-support-grid div {
  align-items: center;
  text-align: center;
  min-height: 150px;
}

.ref-support-grid div img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  margin-bottom: 13px;
}

.ref-support-grid strong {
  font-size: 17px;
  font-weight: 600;
}

@media (max-width: 700px) {
  .ref-support-grid div {
    min-height: 125px;
    padding: 16px 10px;
  }

  .ref-support-grid div img {
    width: 38px;
    height: 38px;
    margin-bottom: 8px;
  }
}

/* ===== 解决方案下拉菜单样式 ===== */
.solutions-dropdown {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  height: 400px;
  background: #fff;
}

.solutions-dropdown .solutions-level2 {
  padding: 10px 20px;
}

.solutions-level1 {
  border-right: 1px solid #e8e8e8;
  overflow-y: auto;
  height: 400px;
}

.solutions-level1-item a {
  display: block;
  padding: 18px 24px!important;
  color: #333;
  font-size: 16px;
  font-weight: 600;
  transition: all .2s;
}
.solutions-level1-item a:hover,
.solutions-level1-item.active a {
  background: #e8f4fd;
  color: #1769e0;
}

.solutions-level2 {
  overflow-y: auto;
  height: 400px;
}

.solutions-articles-list {
  padding: 10px 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.solutions-article-item {
  display: block;
  padding: 12px 24px;
  color: #555;
  font-size: 15px;
  transition: all .2s;
  text-decoration: none;
}

.solutions-article-item:hover {
  background: #e8f4fd;
  color: #1769e0;
}

.solutions-articles-hint {
  padding: 20px 24px;
  color: #999;
  font-size: 14px;
}

/* ===== 服务支持下拉菜单样式 ===== */
.service-dropdown {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  height: auto;
  min-height: 160px;
  background: #fff;
}

.service-dropdown-left {
  padding: 24px 100px;
  background: transparent;
  border-right: 1px solid #e8e8e8;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-slogan {
  margin-bottom: 16px;
}

.service-slogan p {
  color: #1769e0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0;
}

.service-phone {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.service-phone span:first-child {
  color: #999;
  font-size: 14px;
}

.service-phone .phone-number {
  color: #333;
  font-size: 22px;
  font-weight: 600;
}

.service-dropdown-right {
  padding: 16px 30px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  align-content: start;
}

.service-dropdown-item {
  display: block;
  padding: 10px 16px;
  color: #333;
  font-size: 14px;
  transition: all .2s;
  text-decoration: none;
  white-space: nowrap;
}

.service-dropdown-item:hover {
  color: #1769e0;
}

/* ===== 移动端页面适配优化 ===== */
@media (max-width: 768px) {
  /* 产品中心页面 */
  .shop-hero {
    min-height: 280px;
  }

  .shop-hero-copy h1 {
    font-size: 36px;
  }

  .shop-catalog {
    padding-top: 24px;
    padding-bottom: 60px;
  }

  .shop-filters {
    padding: 12px 14px 4px;
    margin-bottom: 14px;
  }

  .shop-filters nav {
    gap: 16px;
    min-height: 40px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .shop-filters nav::-webkit-scrollbar {
    display: none;
  }

  .shop-filters a {
    font-size: 13px;
    min-height: 36px;
    white-space: nowrap;
  }

  .shop-toolbar {
    padding: 24px 0 14px;
  }

  .shop-toolbar strong {
    font-size: 17px;
  }

  .shop-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 60px;
  }

  .shop-card-copy {
    padding: 12px 10px 14px;
  }

  .shop-card-copy h2 {
    font-size: 14px;
  }

  .shop-card-copy p {
    font-size: 11px;
    min-height: 32px;
  }

  .shop-card-bottom {
    margin-top: 10px;
    padding-top: 8px;
  }

  .shop-card-bottom strong {
    font-size: 13px;
  }

  .shop-card-bottom a {
    font-size: 11px;
  }

  /* 解决方案页面 */
  .sol-hero {
    min-height: 280px;
  }

  .sol-hero h1 {
    font-size: 32px;
    padding: 0 20px;
  }

  .sol-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .sol-card {
    padding: 14px;
  }

  .sol-card-body h3 {
    font-size: 14px;
  }

  .sol-card-body p {
    font-size: 12px;
    -webkit-line-clamp: 2;
  }

  .solution-cases {
    gap: 40px;
  }

  .solution-case {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .solution-case:nth-child(even) .case-media {
    order: 0;
  }

  .case-media {
    aspect-ratio: 1.6;
  }

  .case-copy h2 {
    font-size: 24px;
  }

  .case-copy p {
    font-size: 14px;
  }

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

  .method-grid > div {
    min-height: 180px;
    padding: 20px;
  }

  .method-grid h3 {
    font-size: 16px;
    margin-top: 40px;
  }

  .method-grid p {
    font-size: 13px;
  }

  /* 解决方案详情页 */
  .sol-detail {
    padding-top: 60px;
    padding-bottom: 40px;
    padding-inline: 20px;
  }

  .sol-detail-title {
    font-size: 26px;
  }

  .sol-detail-meta {
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
  }

  .sol-detail-body {
    font-size: 15px;
    line-height: 1.9;
  }

  .sol-detail-nav {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .sol-detail-next {
    text-align: left;
  }

  .sol-related {
    padding-top: 50px;
    padding-bottom: 60px;
    padding-inline: 20px;
  }

  .sol-related-heading {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .sol-related-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .sol-related-img {
    aspect-ratio: 1.8;
  }

  /* 服务支持页面 */
  .about-hero-banner {
    min-height: 260px;
  }

  .about-hero-banner h1 {
    font-size: 28px;
  }

  .about-layout {
    grid-template-columns: 1fr;
    padding-top: 20px;
    padding-bottom: 60px;
    gap: 16px;
  }

  .about-sidebar {
    position: static;
    padding: 16px;
    border-radius: 8px;
  }

  .about-sidebar h3 {
    font-size: 16px;
    margin-bottom: 12px;
    padding-bottom: 10px;
  }

  .about-sidebar nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .about-sidebar nav a {
    padding: 8px 14px;
    border-bottom: 0;
    border: 1px solid #e5e5e5;
    border-radius: 6px;
    font-size: 13px;
    min-height: auto;
  }

  .about-sidebar nav a.active {
    background: #2c6fe8;
    color: #fff;
    border-color: #2c6fe8;
  }

  .about-content {
    padding: 20px;
    border-radius: 8px;
    min-height: auto;
  }

  .about-content h2 {
    font-size: 22px;
    margin-bottom: 20px;
  }

  /* 服务表单移动端适配 */
  .svc-form {
    grid-template-columns: 1fr;
  }

  .svc-form .full {
    grid-column: 1;
  }

  .svc-form-submit {
    grid-column: 1;
  }

  .svc-dl-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .svc-dl-btn {
    align-self: flex-end;
  }

  /* 新闻动态页面 */
  .news-hero {
    min-height: 260px;
  }

  .news-hero-content h1 {
    font-size: 28px;
  }

  .news-hero-content p {
    font-size: 14px;
  }

  .news-wrap {
    padding-top: 30px;
    padding-bottom: 60px;
    padding-inline: 20px;
  }

  .news-tabs {
    gap: 20px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 12px;
    margin-bottom: 24px;
  }

  .news-tabs::-webkit-scrollbar {
    display: none;
  }

  .news-tabs a {
    font-size: 14px;
    white-space: nowrap;
    padding-bottom: 12px;
  }

  .news-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .news-card-body {
    padding: 14px 16px 18px;
  }

  .news-card-body h3 {
    font-size: 15px;
  }

  /* 新闻详情页 */
  .news-detail-head {
    padding-top: 100px;
    padding-bottom: 40px;
    padding-inline: 20px;
  }

  .news-detail-head h1 {
    font-size: 28px;
  }

  .news-detail-head > p {
    font-size: 14px;
  }

  .news-detail-head > div {
    flex-wrap: wrap;
    gap: 10px;
    font-size: 11px;
  }

  .news-detail-cover {
    padding-inline: 20px;
  }

  .news-detail-cover img {
    border-radius: 8px;
  }

  .news-detail-layout {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 40px;
    padding-bottom: 60px;
    padding-inline: 20px;
  }

  .news-detail-layout aside {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px;
  }

  .news-detail-layout aside span {
    margin-bottom: 0;
    width: 100%;
  }

  .news-detail-layout aside a {
    padding: 6px 12px;
    border: 1px solid #e5e5e5;
    border-radius: 6px;
    font-size: 12px;
  }

  /* 关于我们页面 - 子页面 */
  .about-section {
    padding: 50px 0;
  }

  .about-section .section-shell {
    padding: 0 20px;
  }

  .about-intro-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-intro-visual {
    min-height: 240px;
    order: -1;
  }

  .about-intro-visual img {
    min-height: 240px;
  }

  .about-intro-content h2,
  .section-title {
    font-size: 24px;
  }

  .about-intro-content p {
    font-size: 14px;
  }

  .explore-banner {
    min-height: 280px;
    margin-top: 24px;
  }

  .explore-content {
    padding: 30px 24px;
  }

  .explore-content h3 {
    font-size: 24px;
  }

  .explore-content p {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .vision-row,
  .rd-grid,
  .business-row {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 28px;
  }

  .vision-card,
  .rd-card,
  .business-card {
    padding: 28px 20px;
  }

  .vision-icon {
    width: 48px;
    height: 48px;
  }

  .vision-card h3 {
    font-size: 18px;
  }

  .rd-value {
    font-size: 28px;
  }

  .business-card h3 {
    font-size: 18px;
  }

  .global-banner {
    grid-template-columns: 1fr;
    padding: 28px 20px;
    margin-top: 24px;
  }

  .global-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .global-number {
    font-size: 48px;
  }

  .global-label {
    font-size: 14px;
  }

  .global-text {
    margin-top: 20px;
  }

  .global-text p {
    font-size: 13px;
  }

  /* 分页移动端适配 */
  .pagination {
    gap: 6px;
  }

  .pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 13px;
  }

  .pagination-ellipsis {
    width: 36px;
    height: 36px;
    font-size: 13px;
  }
}

/* 超小屏幕适配 (320px - 375px) */
@media (max-width: 375px) {
  .shop-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .shop-card-media {
    aspect-ratio: 1.6;
  }

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

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

  .method-grid > div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .method-grid > div:last-child {
    border-bottom: 0;
  }

  .sol-detail-title {
    font-size: 22px;
  }

  .news-detail-head h1 {
    font-size: 24px;
  }
}

/* Contact typography tuned to the reference footer scale */
.footer-contact p.footer-contact-label {
  font-size: 13px;
  line-height: 1.45;
  color: #9299a2;
}

.footer-contact p.footer-contact-meta {
  font-size: 12px;
  line-height: 1.5;
}

.footer-contact p.footer-phone {
  font-size: 18px;
  line-height: 1.2;
  font-weight: 500;
  color: #2d3035;
  margin-bottom: 16px;
}

.footer-contact>p:last-child {
  font-size: 13px;
  color: #2d3035;
}

@media (max-width: 700px) {
  .footer-contact p.footer-contact-label {
    font-size: 13px;
  }

  .footer-contact p.footer-phone {
    font-size: 16px;
  }
}

/* Product center: Wonderful-style commerce catalog *//* One shared header across every route */
.site-header {
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  max-width: none;
  height: 72px;
  padding-inline: 28px;
  border: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, .98);
  box-shadow: 0 3px 16px rgba(36, 34, 30, .08);
}

.site-header .brand strong,
.site-header .brand small,
.desktop-nav > a,
.desktop-nav > .nav-item-dropdown > a {
  color: #2b2b2b;
}

.desktop-nav > a::after,
.desktop-nav > .nav-item-dropdown > a::after {
  background: #3f5cf4;
}

.header-cta {
  min-height: 46px;
  padding-inline: 22px;
  border-radius: 999px;
  background: #3f5cf4;
  color: #fff;
}

.header-cta:hover {
  background: #3049d6;
}

@media (max-width: 900px) {
  .site-header {
    height: 56px;
    padding-inline: 20px;
  }

  .desktop-nav,
  .site-header .header-cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    justify-self: end;
  }
}

.site-header.scrolled {
  top: 0;
  border-radius: 0;
}

/* Compact shared header */
.site-header,
.site-header.scrolled {
  height: 60px;
  padding-inline: 50px;
}

.site-header .brand img {
  /* width: 36px; */
  height: 36px;
}

.site-header .brand .brand-logo {
  height: 50px;
}

.site-header .brand strong {
  font-size: 16px;
}

.site-header .brand small {
  margin-top: 2px;
  font-size: 9px;
}

.desktop-nav > a,
.desktop-nav > .nav-item-dropdown > a {
  padding-inline: 30px;
  font-size: 17px;
}

.desktop-nav > a::after,
.desktop-nav > .nav-item-dropdown > a::after {
  bottom: 7px;
}

.header-cta {
  min-height: 40px;
  padding-inline: 20px;
  font-size: 13px;
}

@media (max-width: 900px) {

  .site-header,
  .site-header.scrolled {
    height: 52px;
    padding-inline: 16px;
  }

  .site-header .brand img {
    /* width: 34px; */
    height: 50px;
  }

  .site-header .brand .brand-logo {
    height: 50px;
  }
}

/* Homepage Swiper hero */

/* ===== 二级导航样式 ===== */

/* PC端下拉菜单容器 */
.nav-item-dropdown {
  position: static;
}

.nav-item-dropdown > a {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0 20px;
  color: #5d6d7e;
  font-size: 14px;
  transition: color .2s;
}

.nav-item-dropdown > a:hover,
.nav-item-dropdown > a.active {
  color: var(--ink);
}

.nav-item-dropdown > a::after {
  content: "";
  position: absolute;
  bottom: 11px;
  left: 50%;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--blue);
  transition: .2s;
}

.nav-item-dropdown > a:hover::after,
.nav-item-dropdown > a.active::after {
  left: 32%;
  width: 36%;
}

/* 下拉面板 - 全屏宽度 */
.dropdown-panel {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  width: 100%;
  background: #fff;
  border-top: 1px solid #eee;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-5px);
  transition: opacity .15s ease, visibility .15s ease, transform .15s ease;
  z-index: 999;
}

/* 只使用active类控制显示，移除hover避免冲突 */
.nav-item-dropdown.active .dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 确保鼠标可以移动到面板上（修复闪烁） */
.dropdown-panel::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 0;
  right: 0;
  height: 20px;
}

/* 下拉菜单打开时，页面内容区域半透明遮罩 */
body.dropdown-open::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 998;
  pointer-events: none;
}

.dropdown-inner {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

/* 下拉列 */
.dropdown-column {
  min-width: 160px;
}

.dropdown-title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
  border-bottom: 2px solid #3f5cf4;
}

.dropdown-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dropdown-list li {
  margin: 0;
}

.dropdown-list a {
  display: block;
  padding: 8px 0;
  color: #5d6d7e;
  font-size: 14px;
  transition: color .2s;
}

.dropdown-list a:hover {
  color: var(--blue);
}

/* ===== 三列布局样式 ===== */
.dropdown-grid {
  display: grid;
  grid-template-columns: 160px 200px 1fr;
  gap: 0;
  height: 480px;
  background: #fff;
}

.dropdown-grid .dropdown-column {
  min-width: 0;
  padding: 0;
  height: 480px;
  overflow-y: auto;
  border-right: 1px solid #e8e8e8;
}

.dropdown-grid .dropdown-column:last-child {
  border-right: none;
}

/* 统一滚动条样式 */
.dropdown-grid .dropdown-column::-webkit-scrollbar {
  width: 6px;
}

.dropdown-grid .dropdown-column::-webkit-scrollbar-track {
  background: #f1f1f1;
}

.dropdown-grid .dropdown-column::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 3px;
}

.dropdown-grid .dropdown-column::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* 第一列：一级分类背景（用户要求不要背景） */
.dropdown-level1 {
  background: transparent;
}

.dropdown-level1 .dropdown-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dropdown-level1-item {
  margin: 0;
}

.dropdown-level1-item a {
  display: block;
  padding: 14px 24px;
  color: #333;
  font-size: 15px;
  font-weight: 600;
  transition: all .2s;
}

.dropdown-level1-item a:hover,
.dropdown-level1-item.active a {
  background: #e8f4fd;
  color: #1769e0;
}

/* 第二列：二级分类 */
.dropdown-level2 {
  background: transparent;
}

.dropdown-level2 .dropdown-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dropdown-level2-item {
  margin: 0;
  display: none;
}

.dropdown-level2-item.visible {
  display: block;
}

.dropdown-level2-item a {
  display: block;
  padding: 14px 24px;
  color: #555;
  font-size: 15px;
  transition: all .2s;
}

.dropdown-level2-item a:hover,
.dropdown-level2-item.active a {
  background: #e8f4fd;
  color: #1769e0;
}

/* 第三列：产品列表区域 */
.dropdown-level3 {
  background: transparent;
  border-left: 1px solid #eee;
}

.dropdown-products-list {
  height: 480px;
  overflow-y: auto;
  padding: 16px 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  align-content: start;
}

.dropdown-products-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
  color: #999;
  font-size: 14px;
}

/* 产品列表项样式 - 简化为只显示标题 */
.dropdown-product-item {
  display: block;
  padding: 12px 16px;
  color: #333;
  font-size: 14px;
  transition: all .2s;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-product-item:hover {
  background: #e8f4fd;
  color: #1769e0;
}

/* 移动端导航树 */
.mobile-nav-tree {
  margin-bottom: 0;
}

.mobile-nav-parent {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  font-size: 17px;
  font-weight: 500;
  color: #333;
  cursor: pointer;
  transition: color .2s;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-parent .arrow {
  color: #ccc;
  font-size: 14px;
  transition: transform .3s;
}

.mobile-nav-parent.active {
  color: #1769e0;
}

.mobile-nav-children {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  padding-left: 8px;
}

.mobile-nav-tree.expanded .mobile-nav-children {
  max-height: 1000px;
  overflow-y: auto;
}

.mobile-nav-tree.expanded .mobile-nav-parent .arrow {
  transform: rotate(90deg);
}

.mobile-nav-group {
  padding: 8px 0;
}

.mobile-nav-group-title {
  color: #1769e0;
  font-size: 12px;
  font-weight: 500;
  padding: 6px 0;
  letter-spacing: .5px;
}

.mobile-nav-child {
  display: block;
  padding: 10px 0;
  color: #888;
  font-size: 14px;
  font-weight: 400;
  transition: color .2s;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-child:hover {
  color: #1769e0;
}

/* 移动端导航菜单动画优化 */
@media (max-width: 900px) {
  .mobile-menu {
    transition: transform .3s cubic-bezier(.4, 0, .2, 1), visibility 0s linear .3s;
  }

  .mobile-menu.open {
    transform: translateX(0);
    visibility: visible;
    transition: transform .3s cubic-bezier(.4, 0, .2, 1), visibility 0s linear 0s;
  }

  /* 遮罩层动画 */
  .mobile-menu-overlay {
    transition: opacity .3s ease;
  }

  /* 导航项入场动画 */
  .mobile-menu nav > a,
  .mobile-menu .mobile-nav-tree {
    opacity: 0;
    transform: translateX(16px);
    transition: opacity .25s ease, transform .25s ease;
  }

  .mobile-menu.open nav > a,
  .mobile-menu.open .mobile-nav-tree {
    opacity: 1;
    transform: translateX(0);
  }

  /* 导航项延迟动画效果 */
  .mobile-menu.open nav > a:nth-child(1),
  .mobile-menu.open .mobile-nav-tree:nth-child(1) {
    transition-delay: .04s;
  }

  .mobile-menu.open nav > a:nth-child(2),
  .mobile-menu.open .mobile-nav-tree:nth-child(2) {
    transition-delay: .08s;
  }

  .mobile-menu.open nav > a:nth-child(3),
  .mobile-menu.open .mobile-nav-tree:nth-child(3) {
    transition-delay: .12s;
  }

  .mobile-menu.open nav > a:nth-child(4),
  .mobile-menu.open .mobile-nav-tree:nth-child(4) {
    transition-delay: .16s;
  }

  .mobile-menu.open nav > a:nth-child(5),
  .mobile-menu.open .mobile-nav-tree:nth-child(5) {
    transition-delay: .2s;
  }

  .mobile-menu.open nav > a:nth-child(6),
  .mobile-menu.open .mobile-nav-tree:nth-child(6) {
    transition-delay: .24s;
  }
}