:root {
  --deep: #0a3d62;
  --deep-2: #123f64;
  --blue: #00a8d6;
  --ice: #edf7fc;
  --pale: #f5f7fa;
  --text: #17344a;
  --muted: #668094;
  --line: #d8e6ef;
  --white: #fff;
  --shadow: 0 20px 55px rgba(10, 61, 98, .12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; height: auto; display: block; }
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.header-inner {
  min-height: 78px;
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 28px;
  align-items: center;
}
.brand img {
  width: 190px;
  max-height: 58px;
  height: auto;
  object-fit: contain;
  object-position: left center;
}
.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--deep);
  font-weight: 700;
}
.site-nav a:hover { background: var(--ice); }
.nav-toggle { display: none; }

.section { padding: 76px 0; }
.stats-section { padding: 54px 0 24px; }
.product-tabs-section { padding-top: 38px; }
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0;
  background:
    radial-gradient(circle at 82% 24%, rgba(0,168,214,.18), transparent 34%),
    radial-gradient(circle at 100% 88%, rgba(93,173,226,.16), transparent 32%),
    linear-gradient(135deg, #fff 0%, #f5f7fa 48%, #f0f4f8 100%);
  border-bottom: 1px solid var(--line);
}
.page-hero::before {
  content: "";
  position: absolute;
  right: max(28px, 7vw);
  top: 28px;
  width: min(360px, 32vw);
  aspect-ratio: 1;
  opacity: .22;
  background:
    radial-gradient(circle, rgba(0,168,214,.32) 0 4px, transparent 5px) 0 0 / 58px 58px,
    linear-gradient(35deg, transparent 47%, rgba(10,61,98,.16) 48% 51%, transparent 52%) 0 0 / 116px 116px,
    linear-gradient(145deg, transparent 47%, rgba(10,61,98,.12) 48% 51%, transparent 52%) 0 0 / 116px 116px;
  transform: rotate(-8deg);
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -170px;
  width: 460px;
  height: 260px;
  border-radius: 50%;
  background: rgba(0,168,214,.12);
  filter: blur(18px);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero.compact { padding: 64px 0; }
.page-hero h1, .hero-content h1 {
  margin: 8px 0 18px;
  color: var(--deep);
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.15;
  letter-spacing: -.03em;
}
.page-hero p, .hero-content p {
  max-width: 650px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 19px;
}
.eyebrow {
  display: inline-flex;
  color: var(--blue);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--deep);
  border-radius: 999px;
  color: var(--deep);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
}
.btn-primary, .btn:hover {
  color: #fff;
  background: var(--deep);
}
.btn-light {
  color: var(--deep);
  border-color: #fff;
  background: #fff;
}
.btn-muted {
  color: var(--muted);
  border-color: var(--line);
  background: var(--pale);
}

.hero-slider { position: relative; overflow: hidden; }
.hero-slide {
  position: relative;
  min-height: 650px;
  display: none;
  align-items: center;
  background-image: var(--hero-desktop);
  background-position: center;
  background-size: cover;
}
.hero-slide.active { display: flex; }
.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.94) 0%, rgba(255,255,255,.78) 42%, rgba(255,255,255,.12) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  width: min(520px, calc(100% - 40px));
  max-width: none;
  margin-left: max(40px, calc((100vw - 1180px) / 2 + 40px));
  margin-right: auto;
}
.hero-content h1,
.hero-content p {
  text-shadow: 0 2px 18px rgba(255,255,255,.72);
}
.hero-content h1 {
  max-width: 100%;
  font-size: clamp(34px, min(4vw, var(--hero-title-size, 54px)), 54px);
  line-height: 1.12;
  overflow-wrap: normal;
  text-wrap: auto;
}
.hero-title-text {
  white-space: pre;
}
.hero-content p { max-width: 500px; }
.hero-slide-designed::before { display: none; }
.hero-slide-text::before { display: none; }
.hero-full-link {
  position: absolute;
  inset: 0;
  z-index: 2;
}

.stat-grid, .product-grid, .download-grid, .clinical-value-grid, .steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.stat-card, .product-card, .download-card, .content-block, .cta-card, .clinical-value-grid > div, .faq-item, .file-row {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}
.stat-card {
  padding: 32px;
  text-align: center;
  background: var(--ice);
}
.stat-card strong {
  display: block;
  color: var(--deep);
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
}
.stat-card span { color: var(--muted); font-weight: 800; }
.section-head {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}
.section-head.left-align { margin-left: 0; text-align: left; }
.section-head h2, .content-block h2, .narrow-flow h2, .process h2 {
  margin: 0 0 12px;
  color: var(--deep);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}
.section-head p { color: var(--muted); }
.tab-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.tab-buttons[data-tabs="news-list"] { grid-template-columns: repeat(4, 1fr); }
.tab-buttons button {
  min-height: 62px;
  border: 2px solid var(--deep);
  border-radius: 16px;
  color: var(--deep);
  background: #fff;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
}
.tab-buttons button.active {
  color: #fff;
  background: var(--deep);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.product-carousel {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 1fr);
  gap: 22px;
  overflow-x: auto;
  padding-bottom: 10px;
}
.product-card {
  padding: 20px;
  overflow: hidden;
}
.product-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 18px;
  background: var(--ice);
}
.product-card h2, .product-card h3 {
  margin: 18px 0 8px;
  color: var(--deep);
}
.product-card p { color: var(--muted); }
.home-product-showcase { display: grid; gap: 18px; }
.home-product-slides {
  position: relative;
  min-height: 470px;
  border: 2px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.home-product-slide {
  position: absolute;
  inset: 0;
  display: none;
  grid-template-columns: 1.35fr 1fr;
  gap: 34px;
  align-items: center;
  padding: 34px;
}
.home-product-slide.active { display: grid; }
.home-product-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 22px;
  background: var(--ice);
}
.home-product-copy h3 {
  margin: 12px 0 14px;
  color: var(--deep);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
}
.home-product-copy p {
  color: var(--muted);
  font-size: 18px;
}
.home-product-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}
.home-product-actions .btn {
  min-height: 56px;
  border-radius: 0;
  font-size: 18px;
}
.split-grid, .support-grid, .product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.cta-card {
  padding: 36px;
  background: var(--ice);
}
.cta-card.dark {
  color: #fff;
  background: var(--deep);
}
.cta-card h2 { margin-top: 0; font-size: 34px; }

.product-detail-hero { padding: 56px 0; background: var(--pale); }
.product-detail-grid { grid-template-columns: 3fr 2fr; align-items: stretch; }
.product-media, .product-info {
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow);
}
.product-media { padding: 20px; display: flex; min-height: 100%; }
.product-gallery {
  position: relative;
  width: 100%;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 22px;
  background: #fff;
}
.product-gallery-track { flex: 1; display: grid; }
.product-gallery-slide {
  grid-area: 1 / 1;
  display: none;
  margin: 0;
  min-height: 100%;
  overflow: hidden;
}
.product-gallery-slide.active { display: block; }
.product-gallery-slide img {
  width: 100%;
  height: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 22px;
  background: #fff;
}
.product-gallery-dots {
  position: absolute;
  left: 50%;
  bottom: 18px;
  display: flex;
  gap: 8px;
  transform: translateX(-50%);
}
.product-gallery-dots button {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(10, 61, 98, .28);
  cursor: pointer;
}
.product-gallery-dots button.active { width: 26px; border-radius: 999px; background: var(--deep); }
.product-info { padding: 34px; }
.product-info dl { margin: 26px 0 0; }
.product-info dt { color: var(--muted); font-weight: 800; }
.product-info dd { margin: 4px 0 16px; }
.narrow-flow { max-width: 980px; }
.narrow-flow > p + h2 { margin-top: 56px; }
.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 42px;
}
.feature-item, .step-card {
  border-radius: 20px;
  background: var(--ice);
  color: var(--deep);
}
.feature-item {
  min-height: 96px;
  padding: 20px 22px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border: 1px solid rgba(216,230,239,.9);
  background: linear-gradient(180deg, #fff 0%, var(--ice) 100%);
  text-align: left;
}
.feature-item.has-body {
  grid-column: 1 / -1;
  min-height: 0;
}
.feature-icon {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 7px rgba(0,168,214,.1);
}
.feature-item h3 {
  margin: 0;
  color: var(--deep);
  font-size: clamp(19px, 2vw, 22px);
  line-height: 1.35;
}
.feature-item p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 600;
}
.wide-image { width: 100%; margin: 20px 0 42px; border-radius: 24px; }
.product-video { width: 100%; margin: 16px 0 42px; border-radius: 24px; background: #000; }
.steps-timeline {
  position: relative;
  display: grid;
  gap: 16px;
  margin-bottom: 42px;
}
.steps-timeline::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: var(--line);
}
.step-card {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px 24px 22px 0;
  background: transparent;
  text-align: left;
}
.step-index {
  position: relative;
  z-index: 1;
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: var(--deep);
  box-shadow: 0 0 0 8px #fff;
  font-size: 20px;
  font-weight: 900;
}
.step-content {
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(10,61,98,.08);
}
.step-content h3 {
  margin: 0 0 8px;
  color: var(--deep);
  font-size: 24px;
  line-height: 1.3;
}
.step-content p {
  margin: 0;
  color: var(--text);
  font-size: 17px;
  line-height: 1.85;
  font-weight: 600;
}
.notice-box {
  padding: 28px;
  border-left: 5px solid var(--blue);
  border-radius: 18px;
  background: var(--pale);
}

.clinical-value-grid > div, .content-block { padding: 30px; }
.clinical-flow > .content-block + .content-block { margin-top: 34px; }
.product-card h2,
.product-card h3,
.clinical-value-grid h3,
.download-card h3,
.file-row h3,
.dealer-benefits h3,
.dealer-contact h3,
.dealer-download h3,
.form-panel h3,
.news-body h3 {
  color: var(--deep);
  font-size: clamp(20px, 2vw, 24px);
  line-height: 1.35;
}
.dealer-download, .dealer-benefits, .dealer-contact {
  margin-top: 22px;
  padding: 22px;
  border-radius: 20px;
  background: var(--ice);
}
.dealer-download { margin-top: 0; background: #fff; border: 1px solid var(--line); }
.dealer-benefits h3, .dealer-contact h3, .dealer-download h3 {
  margin: 0 0 12px;
}
.dealer-benefits ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.dealer-benefits li {
  padding-left: 18px;
  position: relative;
  color: var(--text);
  font-weight: 800;
}
.dealer-benefits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
}
.dealer-contact p { margin: 6px 0; color: var(--muted); font-weight: 800; }
.process { margin: 48px 0; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.process-grid div {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--ice);
  text-align: center;
  font-weight: 800;
}
.file-list { display: grid; gap: 14px; }
.file-row {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 18px;
  align-items: center;
  padding: 18px;
  box-shadow: none;
}
.file-row h3 { margin: 0; }
.file-row p { margin: 4px 0 0; color: var(--muted); }
.form-panel { margin-top: 42px; padding: 34px; border-radius: 28px; background: var(--ice); }
.form-panel h3 { margin: 0 0 24px; }
.lead-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.lead-form label { color: var(--deep); font-weight: 800; }
.lead-form input, .lead-form textarea {
  width: 100%;
  margin-top: 6px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  font: inherit;
}
.lead-form .full { grid-column: 1 / -1; }
.lead-form button[type="submit"] {
  grid-column: 1 / -1;
  justify-self: center;
  width: min(420px, 100%);
}
.form-success {
  margin-bottom: 18px;
  padding: 14px 18px;
  border-radius: 14px;
  color: #075d34;
  background: #e8f8ef;
}

.about-flow { display: grid; gap: 34px; }
.certificate-image {
  width: min(620px, 100%);
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--pale);
}
.timeline { display: grid; gap: 12px; }
.timeline-item {
  padding: 16px 18px;
  border-left: 4px solid var(--blue);
  border-radius: 12px;
  background: var(--pale);
}
.news-list { display: grid; gap: 18px; }
.news-row-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 22px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}
.news-thumb img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 18px;
}
.news-body h3 {
  margin: 6px 0 8px;
}
.pagination-nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
}
.pagination-nav a {
  min-width: 42px;
  height: 42px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--deep);
  background: #fff;
  font-weight: 800;
}
.pagination-nav a.active,
.pagination-nav a:hover {
  color: #fff;
  border-color: var(--deep);
  background: var(--deep);
}
.pagination-nav .pagination-arrow { min-width: 96px; }
.pagination-ellipsis {
  height: 42px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-weight: 900;
}
.meta { color: var(--muted); font-size: 14px; font-weight: 800; }
.text-link { color: var(--blue); font-weight: 800; }
.article-body {
  max-width: 860px;
  font-size: 18px;
}
.article-cover img { width: 100%; margin-bottom: 28px; border-radius: 24px; }
.faq-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 48px; }
.faq-item { padding: 20px 22px; box-shadow: none; }
.faq-item summary { cursor: pointer; color: var(--deep); font-weight: 900; }
.download-grid { margin-top: 18px; }
.support-download-head { margin-top: 72px; }
.download-card { padding: 26px; }
.download-card h3 { margin-top: 0; }
.empty, .download-card .meta { color: var(--muted); }

.site-footer {
  padding: 46px 0;
  color: #dbeaf2;
  background: var(--deep);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
}
.footer-grid p { margin: 6px 0; color: #c5d9e5; }
.footer-grid .footer-note {
  max-width: 520px;
  margin-top: 10px;
  color: rgba(219,234,242,.72);
  font-size: 14px;
  line-height: 1.75;
  font-weight: 500;
}

@media (max-width: 900px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .brand img { width: 172px; }
  .nav-toggle {
    display: inline-flex;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
  }
  .site-nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    padding-bottom: 16px;
  }
  .site-nav.open { display: flex; }
  .page-hero::before { right: -90px; width: 260px; opacity: .14; }
  .page-hero::after { opacity: .65; }
  .hero-slide { min-height: 560px; background-image: var(--hero-mobile); background-position: right center; }
  .hero-content {
    width: calc(100% - 40px);
    max-width: none;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-content h1,
  .hero-content h2 {
    font-size: clamp(32px, min(10vw, var(--hero-title-size, 48px)), 48px);
    overflow-wrap: anywhere;
  }
  .hero-title-text { white-space: pre-line; }
  .hero-slide::before { background: rgba(255,255,255,.82); }
  .hero-slide-designed::before { display: none; }
  .hero-slide-text::before { display: none; }
  .stat-grid, .product-grid, .download-grid, .clinical-value-grid, .split-grid, .support-grid, .product-detail-grid, .feature-list, .steps-grid, .faq-list, .footer-grid {
    grid-template-columns: 1fr;
  }
  .tab-buttons { grid-template-columns: 1fr; }
  .home-product-slides { min-height: 560px; }
  .home-product-slide { grid-template-columns: 1fr; gap: 18px; padding: 22px; align-content: center; }
  .home-product-actions { grid-template-columns: 1fr; }
  .product-detail-grid { gap: 18px; }
  .product-gallery { min-height: 320px; }
  .dealer-benefits ul { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .file-row { grid-template-columns: 1fr; }
  .lead-form { grid-template-columns: 1fr; }
  .news-row-card { grid-template-columns: 1fr; }
}

.lead-form .website-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.form-error {
  margin-bottom: 18px;
  padding: 14px 16px;
  border: 1px solid #efb4b4;
  border-radius: 12px;
  color: #8f1d1d;
  background: #fff4f4;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}