:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --soft: #e7e5e4;
  --text: #071a33;
  --body: #4b5565;
  --white:#f0f0f0;
  --grey: #D1D5DB;
  --muted: #6b7280;
  --orange: #ff4e00;
  --blue: #2d559b;
  --dark: #17212f;
  --shadow: 0 28px 80px rgba(7, 26, 51, 0.08);
  --radius-lg: 32px;
  --radius-md: 22px;
  --container: 1400px;
}

/*
:root {
  --font-western: "Montserrat", system-ui, -apple-system, sans-serif;
  --font-chinese: "Alibaba PuHuiTi", "Alibaba PuHuiTi 3.0", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
  font-family: var(--font-western);
}

html[lang="zh"] body {
  font-family: var(--font-chinese);
}

html[lang="zh"] .brand,
html[lang="zh"] .logo-text,
html[lang="zh"] .eyebrow,
html[lang="zh"] .nav-link,
html[lang="zh"] .btn-primary,
html[lang="zh"] .btn-secondary,
html[lang="zh"] .product-name {
  font-family: var(--font-western);
}
*/

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    "Montserrat",
    "Noto Sans SC",
    "PingFang SC",
    "Microsoft YaHei",
    system-ui,
    -apple-system,
    sans-serif;
}

a {
  color: inherit;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(231, 229, 228, 0.88);
}

.header-inner {
  height: 102px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 66px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.main-nav.active {
  color: var(--orange);
}

.nav-link {
  text-decoration: none;
  padding: 12px 0;
  color: var(--text);
  font-weight: 600;
  position: relative;
  transition: 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 0;
  height: 3px;
  background: var(--orange);
  transition: width 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--orange);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: 24px;
}

.language-select {
  border-radius: 99px;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-weight: 600;
  font-size: 14px;
  padding: 6px 6px;
}

/*
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
  padding: 16px 26px;
  font-weight: 700;
  transition: 0.2s ease;
}
*/

.contact-outline {
  display: inline-flex;
  text-decoration: none;
  color: var(--orange);
  border: 2px solid var(--orange);
  border-radius: 999px;
  padding: 12px 24px;
  font-weight: 700;
  transition: 0.2s ease;
}

.contact-outline:hover {
  background: var(--orange);
  color: #ffffff;
}

.mobile-menu-toggle {
  display: none;
  margin-left: auto;
  border: 0;
  background: transparent;
  font-size: 30px;
  color: var(--text);
}

.hero {
  min-height: calc(100vh - 92px);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: center
}

.hero-slide {
  position: absolute;
  width: 100%;
  max-width: 1600px;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.hero-slide.active {
  opacity: 1
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(245, 245, 243, .92) 0%, rgba(245, 245, 243, .72) 32%, rgba(245, 245, 243, .28) 62%, rgba(245, 245, 243, .12) 100%)
}

.hero-content {
  position: relative;
  z-index: 3;
  padding-top: 80px;
  padding-bottom: 100px
}

.eyebrow {
  display: inline-block;
  color: var(--orange);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero h1 {
  max-width: 600px;
  margin: 0;
  font-size: clamp(48px, 5.4vw, 76px);
  line-height: 1.08;
  letter-spacing: -0.05em;
  color: var(--text);
}

.hero p {
  max-width: 640px;
  margin: 28px 0 0;
  font-size: 22px;
  line-height: 1.48;
  /*color: #536179;*/
  color: var(--muted);
  font-weight: 500;
}

/*
.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
  display: grid;
  gap: 12px;
}

.hero-bullets li {
  position: relative;
  padding-left: 34px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
}

.hero-bullets li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: -2px;
  width: 22px;
  height: 22px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  color: var(--orange);
  display: grid;
  place-items: center;
  font-size: 13px;
  line-height: 1;
}
*/

.hero-actions {
  margin-top: 34px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}


.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
  padding: 16px 26px;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn-primary {
  background: var(--orange);
  color: #ffffff;
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  box-shadow: 0 8px 28px rgba(7, 26, 51, 0.08);
}

/*
.hero-arrow {
  position: absolute;
  top: 50%;
  z-index: 6;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  font-size: 38px;
  line-height: 1;
  display: grid;
  place-items: center;
}
*/

/*
.hero-arrow-left {
  left: 18px;
}

.hero-arrow-right {
  right: 18px;
}

.hero-dots {
  position: absolute;
  left: 50%;
  bottom: 24px;
  z-index: 6;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
}

.hero-dots span {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #ffffff;
  opacity: 0.9;
}

.hero-dots span.active {
  background: var(--orange);
}
*/

.value-strip {
  position: relative;
  z-index: 10;
  margin-top: -46px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(231, 229, 228, 0.9);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 28px 24px;
}

.value-grid article {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 20px;
  padding: 0 24px;
  border-right: 1px solid var(--soft);
}

.value-grid article:last-child {
  border-right: 0;
}

.value-icon {
  width: 66px;
  height: 58px;
  background: #eef2f7;
  clip-path: polygon(25% 6%, 75% 6%, 100% 50%, 75% 94%, 25% 94%, 0 50%);
  position: relative;
}

.value-icon::after {
  content: "";
  position: absolute;
  inset: 19px;
  background: var(--blue);
  clip-path: polygon(25% 6%, 75% 6%, 100% 50%, 75% 94%, 25% 94%, 0 50%);
}

.value-grid h3 {
  margin: 2px 0 10px;
  font-size: 16px;
}

.value-grid p {
  grid-column: 2;
  margin: 0;
  color: var(--body);
  font-size: 14px;
  line-height: 1.65;
}

.intro-section {
  padding: 84px 0 96px;
}

.intro-content {
  text-align: center;
  /*max-width: 850px;*/
  max-width: 900px;
}

.intro-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: center
}

.intro-content h2,
.page-hero h2,
.product-detail h2,
.note-card h2,
.about-intro h2,
.product-intro h2,
.section-heading h2 {
  margin: 0;
  font-size: clamp(36px, 4.2vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.intro-content p,
.page-hero p,
.product-detail p,
.note-card p,
.about-intro p,
.product-intro p,
.check-list,
.application-card p,
.contact-hero p,
.footer-text {
  color: var(--body);
  line-height: 1.75;
}

.intro-content p {
  font-size: 18px;
}

.section {
  padding: 116px 0 78px;
  position: relative;
  overflow: hidden;
}

.section-muted {
  background: #ffffff;
}

.section-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 1600px;
  height: 100%;
  /* object-fit: cover; */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.section-content {
    position: relative;
    z-index: 3;
    padding-top: 0px;
    padding-bottom: 0px
}

/* section 增加渐变遮罩 */
/*
.section-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(135deg, rgba(245, 245, 243, .92) 0%, rgba(245, 245, 243, .72) 32%, rgba(245, 245, 243, .28) 62%, rgba(245, 245, 243, .12) 100%)  
}
*/

/* section增加遮罩 */
.section-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(245, 245, 243, .62);
    backdrop-filter: blur(4px);     /* 模糊背景 */
    z-index: 1;
}

/* section增加暗色遮罩 */
.section-overlay-dark {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(7, 26, 51, 0.4);  /* 可调透明度 */
}

/* section增加亮色遮罩 */
.section-overlay-light {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(245, 245, 243, 0.7);  /* 可调透明度 */
}

.page-hero {
  padding: 116px 40px 78px;
  position: relative;
  overflow: hidden;
  /* background: linear-gradient(120deg, #ffffff, #f5f5f3); */
}

.page-hero p {
  max-width: 760px;
  font-size: 20px;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 1600px;
  height: 100%;
  /* object-fit: cover; */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.page-hero-content {
    position: relative;
    z-index: 3;
    padding-top: 0px;
    padding-bottom: 0px
}

.page-hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, rgba(245, 245, 243, .92) 0%, rgba(245, 245, 243, .72) 32%, rgba(245, 245, 243, .28) 62%, rgba(245, 245, 243, .12) 100%);
    backdrop-filter: blur(2px);     /* 模糊背景 */
    -webkit-backdrop-filter: blur(10px); /* safari 浏览器兼容性 */
    /* 核心技巧：应用遮罩来淡出模糊效果 */
    -webkit-mask-image: linear-gradient(90deg, black 0%, transparent 100%);
    mask-image: linear-gradient(90deg, black 0%, transparent 100%);
    
}

.page-hero-overlay p {
  max-width: 760px;
  font-size: 20px;
}

/*
.page-hero-grid {
    display: grid;
    grid-template-column: 
  padding: 116px 0 78px;
  background: linear-gradient(120deg, #ffffff, #f5f5f3);
}
*/

.detail-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 62px;
  align-items: center;
}

.detail-grid.reverse {
  grid-template-columns: 1.08fr 0.92fr;
}

/*
.detail-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
*/

.detail-images img {
  width: 75%;
  aspect-ratio: 3 / 2;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--soft);
}

.detail-images-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.detail-images-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--soft);
}

.series-label {
  font-size: 22px;
  /*letter-spacing: 0.2em;*/
  font-weight: 700;
}

.series-label.orange {
  color: var(--orange);
}

.series-label.blue {
  color: var(--blue);
}

.check-list {
  padding-left: 20px;
  font-weight: 500;
}

.check-list li {
  margin: 12px 0;
}

.feature-card, article {
  background: var(--surface);
  border: 1px solid var(--soft);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 12px 40px rgba(28, 25, 23, .04)
}

.feature-card h3{
  margin: 0 0 12px;
  font-size: 22px
}

.feature-card p{
  color: var(--muted);
  line-height: 1.75
}

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

.note-card {
  max-width: 900px;
  background: #ffffff;
  border: 1px solid var(--soft);
  border-radius: var(--radius-lg);
  padding: 34px;
}

.application-grid {
  display: grid;
  gap: 28px;
}

.application-card {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 34px;
  background: #ffffff;
  border: 1px solid var(--soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(7, 26, 51, 0.05);
}

.application-card img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  max-height: 500px;
  object-fit: cover;
}

.application-card > div {
  padding: 42px;
}

.tag-row {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.tag-row span {
  background: var(--bg);
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 800;
  color: var(--orange);
}

.about-hero {
  background: linear-gradient(120deg, #ffffff, #f5f5f3);
}

.about-intro {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  font-size: 20px;
  z-index: 4;
}


/*
.product-hero {
  background: linear-gradient(120deg, #ffffff, #f5f5f3);
}
*/

.product-intro {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  font-size: 20px;
}

.stats-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.stats-grid div {
  background: #ffffff;
  border: 1px solid var(--soft);
  border-radius: var(--radius-md);
  padding: 24px;
}

.stats-grid strong {
  display: block;
  color: var(--orange);
  font-size: 34px;
  margin-bottom: 8px;
}

.stats-grid span {
  color: var(--body);
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.vision-grid article {
  background: #ffffff;
  border: 1px solid var(--soft);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.vision-grid h3 {
  margin: 0 0 14px;
  font-size: 24px;
}

.vision-grid p {
  color: var(--body);
  line-height: 1.75;
}

.section-heading {
  margin-bottom: 42px;
}

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

.image-strip img {
  height: 270px;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--soft);
}

.site-footer {
  background: #222b34;
  color: #ffffff;
  padding-top: 52px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 32px;
}

.footer-logo {
  height: 54px;
  width: auto;
  margin-bottom: 18px;
}

.footer-text,
.site-footer p {
  color: rgba(255, 255, 255, 0.72);
}

.site-footer h4 {
  margin: 0 0 16px;
}

.site-footer a {
  display: block;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.72);
  margin: 10px 0;
}

.footer-bottom {
  margin-top: 42px;
  padding: 22px 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.contact-hero {
  position: relative;
  padding: 120px 0 88px;
  background:
    radial-gradient(circle at 86% 18%, rgba(255, 78, 0, 0.12), transparent 26%),
    radial-gradient(circle at 8% 86%, rgba(45, 85, 155, 0.13), transparent 28%),
    linear-gradient(120deg, #ffffff, #F5F5F3);
  overflow: hidden;
}

/*
.contact-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 360px;
  height: 312px;
  border: 28px solid rgba(255, 78, 0, 0.14);
  clip-path: polygon(25% 6%, 75% 6%, 100% 50%, 75% 94%, 25% 94%, 0 50%);
}
*/
.contact-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.contact-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.contact-hero p {
  max-width: 900px;
  margin: 22px 0 0;
  color: var(--muted);
  line-height: 1.48;
  font-size: 22px;
}

.contact-hero-card,
.contact-card,
.map-panel {
  background: #ffffff;
  border: 1px solid var(--soft);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 58px rgba(28, 25, 23, 0.05);
}

.contact-hero-card {
  padding: 36px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.contact-hero-card h2 {
  margin: 14px 0 12px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.contact-hero-card p {
  margin: 0;
  font-size: 16px;
}

.contact-section {
  padding-top: 88px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 34px;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 20px;
}

.contact-card {
  padding: 32px;
}

/*
.contact-card.primary {
  border-top: 5px solid var(--orange);
}
*/
.card-label {
  display: inline-block;
  color: var(--orange);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-weight: 800;
}

.contact-card h2,
.map-header h2 {
  margin: 14px 0 22px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.contact-card h3 {
  margin: 14px 0 14px;
  font-size: 24px;
}

.contact-card p {
  color: var(--muted);
  line-height: 1.75;
}

.contact-list {
  display: grid;
  gap: 22px;
}

.contact-item {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--soft);
}

.contact-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-item span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}

.contact-item a,
.contact-item p {
  margin: 0;
  color: var(--text);
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  line-height: 1.55;
}

.contact-item a:hover {
  color: var(--orange);
}

.contact-checklist {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.85;
}

.contact-checklist li {
  margin: 8px 0;
}

.map-panel {
  overflow: hidden;
}

.map-header {
  padding: 32px 32px 12px;
}

.map-frame {
  width: 100%;
  height: 520px;
  background: var(--bg);
}

.map-note {
  padding: 24px 32px 32px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  border-top: 1px solid var(--soft);
}

.map-note p {
  margin: 0;
  max-width: 560px;
  color: var(--muted);
  line-height: 1.7;
}

.text-link {
  flex-shrink: 0;
  color: var(--orange);
  font-weight: 700;
  text-decoration: none;
}

.contact-cta {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: center;
}

.contact-cta h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.contact-cta p {
  max-width: 720px;
  color: var(--muted);
  line-height: 1.75;
}

/*
@media (max-width: 980px) {
  .contact-hero-grid,
}
  */

/* ===== 视差滚动 Section ===== */
.parallax-section {
  /* padding: 116px 0 78px; */
  position: relative;
  min-height: 600px;          /* 可根据需要调整高度 */
  height: 50vh;              /* 全屏高度，视差效果更明显 */
  display: flex;
  align-items: center;
  overflow: hidden;           /* 防止内容溢出 */
  background-size: 100% auto;
  background-position: center bottom;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

/* 半透明遮罩（用于提升文字可读性） */
/*
.parallax-section::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background: rgba(7, 26, 51, 0.4);  可调透明度 
}
*/


/* 背景层：使用 fixed 固定背景，产生视差 */
.parallax-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  /*display: flex;
  justify-content: center;
  align-items: center;*/
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

.parallax-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(7, 26, 51, 0.35); /* 深色半透明遮罩 */
  z-index: 1;
}

/* 内容层：位于背景之上 */
.parallax-content {
  position: relative;
  z-index: 3;
  max-width: 800px;
  padding: 40px 0;
  color: #ffffff;
}

/* 内容层文字样式微调 */
.parallax-content .eyebrow {
  color: var(--orange);
}

.parallax-content h2 {
  margin: 0 0 20px 0;
  font-size: clamp(36px, 4.5vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.parallax-content p {
  font-size: 20px;
  line-height: 1.7;
  margin-bottom: 32px;
  opacity: 0.92;
  color: rgba(255, 255, 255, 0.85);
}

/* 移动端兼容：在部分浏览器上 background-attachment: fixed 可能不生效，
   可降级为 scroll，或使用媒体查询调整 */
@media (max-width: 768px) {
  .parallax-bg {
    background-attachment: scroll; /* 移动端降级为普通滚动 */
  }
  .parallax-section {
    min-height: 480px;
    height: auto;
    padding: 60px 0;
  }
  .parallax-content {
    text-align: center;
  }
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 102px; /* 与 header 高度一致 */
}

.text-white {
  color: var(--white);
}

.text-grey {
  color: var(--grey);
}

.text-orange {
  color: var(--orange);
}

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

section[id] {
  scroll-margin-top: 102px;
}

/* 平板浏览器配置 */
@media (max-width: 1024px) {
  .header-inner {
    height: auto;
    min-height: 86px;
    flex-wrap: wrap;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    width: 100%;
    order: 4;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

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

  .nav-link {
    padding: 14px 0;
  }

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

  .detail-grid,
  .detail-grid.reverse,
  .about-intro,
  .contact-layout,
  .contact-hero-grid,
  .application-card {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
}
/* 平板浏览器配置结束 */

/* 手机浏览器 */
@media (max-width: 640px) {
  .container {
    padding: 0 22px;
  }

  .logo-img {
    height: 48px;
  }

  .hero {
    min-height: 78vh;
  }

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

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

  .section {
    padding: 72px 0;
  }

  .feature-grid,
  .vision-grid,
  .detail-images,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .detail-images img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
  }

  .application-card img {
    min-height: 240px;
  }

  .application-card > div {
    padding: 28px;
  }

  .contact-hero {
    padding: 78px 0 56px;
  }

  .contact-card,
  .map-panel {
    border-radius: 22px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}
/* 手机浏览器配置结束 */

.about-intro p.text-grey,
.product-intro p.text-grey,
.section-content p.text-grey {
  color: var(--grey);
}

.blur {
  backdrop-filter: blur(5px); 
}