:root {
  /* 主色调 - 基于 dysteel.com 的蓝色系 */
  --blue: #1a5fb4;
  --blue-dark: #0f3d7a;
  --blue-light: #4a90e2;
  --blue-soft: #e8f1ff;
  --blue-extra-soft: #f5f9ff;
  
  /* 强调色 - 橙色/红色，用于按钮和重要元素 */
  --accent: #ff6b35;
  --accent-light: #ff8c5a;
  --accent-dark: #e05a2b;
  
  /* 中性色 */
  --ink: #1a2634;
  --ink-light: #2c3e50;
  --muted: #6c7d8f;
  --muted-light: #95a5b8;
  --line: #d4dde9;
  --line-soft: #e6edf5;
  --white: #ffffff;
  --bg: #f8fafc;
  --bg-soft: #fefeff;
  --bg-dark: #071427;
  
  /* 阴影和效果 */
  --shadow: 0 20px 60px rgba(21, 53, 101, 0.12);
  --shadow-light: 0 8px 32px rgba(21, 53, 101, 0.08);
  --shadow-strong: 0 25px 80px rgba(21, 53, 101, 0.18);
  --radius: 28px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  
  /* 容器和布局 */
  --container: min(1280px, calc(100vw - 48px));
  --container-wide: min(1400px, calc(100vw - 48px));
  
  /* 字体 */
  --font-display: "Avenir Next Condensed", "DIN Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-body: "Avenir Next", "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Monaco", "Inconsolata", "Fira Code", monospace;
  
  /* 动画 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
  width: var(--container);
  margin: 0 auto;
}

/* 顶部信息栏 - dysteel.com 风格的简洁顶部栏 */
.topbar {
  background: var(--blue-dark);
  color: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  position: relative;
  z-index: 50;
}

.topbar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.topbar-inner,
.nav-wrap,
.site-nav,
.hero-actions,
.section-head,
.contact-list,
.footer-bottom,
.topbar-copy,
.topbar-actions {
  display: flex;
  align-items: center;
}

.topbar-inner,
.nav-wrap,
.section-head,
.footer-bottom {
  justify-content: space-between;
}

.topbar-inner {
  min-height: 36px;
  gap: 20px;
  font-size: 13px;
}

.topbar-copy,
.topbar-actions,
.contact-list {
  gap: 20px;
  flex-wrap: wrap;
}

.topbar-copy {
  color: rgba(255, 255, 255, 0.8);
}

.topbar-actions {
  color: rgba(255, 255, 255, 0.8);
}

.topbar-contact {
  font-size: 13px;
  font-weight: 500;
}

.topbar-contact a {
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
  transition: color var(--transition-fast);
}

.topbar-contact a:hover {
  color: var(--accent-light);
}

.topbar-welcome {
  position: relative;
  padding-left: 20px;
}

.topbar-welcome::before {
  content: '✨';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  opacity: 0.8;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 45;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 30px rgba(18, 57, 114, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.9);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-soft), transparent);
}

.nav-wrap {
  min-height: 88px;
  gap: 32px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.brand:hover {
  transform: translateY(-1px);
}

.brand-logo {
  display: block;
  width: auto;
  max-height: 48px;
  height: auto;
  transition: all var(--transition-normal);
}

.brand:hover .brand-logo {
  transform: scale(1.02);
}

.brand-mark {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  color: #fff;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.brand-mark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.brand:hover .brand-mark::before {
  transform: translateX(100%);
}

.brand-copy {
  display: grid;
  gap: 6px;
}

.brand-copy strong {
  font-size: 18px;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.1;
}

.brand-copy span {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.site-nav {
  gap: 28px;
  margin-left: auto;
  align-items: center;
}

.site-nav > a:not(.header-phone):not(.nav-cta),
.lang-switcher a {
  color: var(--ink-light);
  font-weight: 600;
  position: relative;
  padding: 12px 0;
  font-size: 15px;
  letter-spacing: 0.02em;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.site-nav > a:not(.header-phone):not(.nav-cta).is-active,
.site-nav > a:not(.header-phone):not(.nav-cta):hover {
  color: var(--blue);
}

.site-nav > a:not(.header-phone):not(.nav-cta).is-active {
  font-weight: 700;
}

.site-nav > a:not(.header-phone):not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px 2px 0 0;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

.site-nav > a:not(.header-phone):not(.nav-cta).is-active::after,
.site-nav > a:not(.header-phone):not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.site-nav > a:not(.header-phone):not(.nav-cta):hover {
  transform: translateY(-1px);
}

.header-phone {
  display: grid;
  gap: 4px;
  padding-left: 20px;
  padding-right: 20px;
  color: var(--blue);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
}

.header-phone::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 24px;
  background: var(--line);
}

.header-phone:hover {
  transform: translateY(-1px);
  color: var(--accent);
}

.header-phone span {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

.header-phone strong {
  font-size: 22px;
  line-height: 1;
  font-weight: 800;
  color: var(--blue);
  transition: color var(--transition-fast);
}

.header-phone:hover strong {
  color: var(--accent);
}

.lang-switcher {
  display: flex;
  gap: 4px;
  padding: 6px;
  border-radius: var(--radius-sm);
  background: var(--blue-soft);
  border: 1px solid var(--line);
}

.lang-switcher a {
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.lang-switcher a.is-active,
.lang-switcher a:hover {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 12px rgba(26, 95, 180, 0.2);
}

.lang-switcher a.is-active {
  font-weight: 700;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 0;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.nav-cta {
  display: none;
}

.flash-stack {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.flash {
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.hero,
.page-hero {
  position: relative;
  overflow: hidden;
}

.hero-clean {
  min-height: clamp(680px, 85vh, 920px);
  overflow: hidden;
  position: relative;
}

.hero-backdrop,
.hero-backdrop img,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-backdrop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.6) saturate(1.1);
  transform: scale(1.05);
  transition: transform 8s ease;
  will-change: transform;
}

.hero-clean:hover .hero-backdrop img {
  transform: scale(1.08);
}

.hero-overlay {
  background:
    linear-gradient(180deg, rgba(7, 20, 42, 0.4) 0%, rgba(10, 30, 65, 0.7) 50%, rgba(7, 20, 42, 0.9) 100%),
    radial-gradient(circle at 30% 20%, rgba(26, 95, 180, 0.3) 0%, transparent 60%),
    radial-gradient(circle at 70% 80%, rgba(255, 107, 53, 0.2) 0%, transparent 60%);
}

.hero-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="400" height="400" viewBox="0 0 400 400"><rect width="400" height="400" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1" stroke-dasharray="4 4"/></svg>');
  background-size: 400px 400px;
  opacity: 0.3;
  pointer-events: none;
}

.hero-center {
  position: relative;
  z-index: 2;
  min-height: clamp(680px, 85vh, 920px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 100px 0 80px;
}

.hero-copy {
  max-width: 1200px;
  padding: 0 20px;
}

.hero-mini,
.section-kicker,
.rail-label {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.section-kicker {
  color: var(--blue);
  background: var(--blue-soft);
  border: 1px solid var(--line);
  backdrop-filter: none;
}

.hero-mini {
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  letter-spacing: 0.15em;
}

.hero-title,
.section-title {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1;
}

.hero-title {
  font-size: clamp(56px, 6vw, 96px);
  line-height: 0.95;
  color: #fff;
  text-shadow: 0 4px 40px rgba(0, 0, 0, 0.3);
  margin: 20px 0;
  font-weight: 800;
  position: relative;
}

.hero-title::after {
  content: '';
  display: block;
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  margin: 30px auto 0;
  border-radius: 2px;
}

.hero-title-formal {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1;
  color: var(--ink);
  font-weight: 800;
  margin: 20px 0;
}

.hero-subtitle,
.lead-copy,
.body-copy,
.article-body p,
.product-card p,
.news-card p,
.capability-card p,
.application-card p,
.product-mini p,
.product-spotlight-copy p,
.contact-card p,
.news-feature-copy p {
  line-height: 1.7;
}

.hero-subtitle {
  max-width: 1000px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero-subtitle-en {
  font-size: clamp(18px, 2.2vw, 26px);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 10px;
}

.hero-summary {
  max-width: 1000px;
  margin: 32px auto 0;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.8;
  font-size: clamp(18px, 1.8vw, 26px);
  font-weight: 400;
  letter-spacing: 0.01em;
}

.lead-copy {
  max-width: 800px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
  font-weight: 400;
}

.body-copy {
  color: var(--muted);
  white-space: pre-line;
  line-height: 1.7;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.hero-badges span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  font-size: 16px;
  font-weight: 700;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.hero-badges span::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.hero-badges span:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.hero-badges span:hover::before {
  opacity: 1;
}

.lead-copy {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.body-copy {
  color: var(--muted);
  white-space: pre-line;
}

.hero-actions {
  justify-content: center;
  gap: 20px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.btn,
.btn-primary,
.btn-secondary,
.text-link {
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn,
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 60px;
  padding: 0 36px;
  border-radius: var(--radius-sm);
  border: 0;
  cursor: pointer;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  outline: none;
  position: relative;
  z-index: 1;
}

.btn::before,
.btn-primary::before,
.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: -1;
}

.btn,
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  box-shadow: 0 12px 40px rgba(255, 107, 53, 0.3);
  border: 2px solid transparent;
}

.btn-secondary {
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  backdrop-filter: blur(10px);
}

.page-hero .btn-secondary,
.section .btn-secondary {
  color: var(--accent);
  border-color: var(--accent-light);
  background: #fff;
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.15);
}

.btn:hover,
.btn-primary:hover,
.btn-secondary:hover,
.text-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(255, 107, 53, 0.4);
}

.btn:hover::before,
.btn-primary:hover::before,
.btn-secondary:hover::before {
  opacity: 1;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
}

.page-hero .btn-secondary:hover,
.section .btn-secondary:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.hero-dots {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}

.hero-dots span {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.42);
}

.hero-dots span.is-active {
  background: #fff;
}

.metrics-strip {
  position: relative;
  margin-top: -60px;
  z-index: 10;
  padding-top: 0;
}

.metrics-grid,
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.company-profile {
  padding-top: 80px;
  background: #fff;
  position: relative;
  overflow: hidden;
}

.company-profile::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.profile-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 60px;
  align-items: center;
}

.profile-copy {
  padding: 20px 0;
}

.profile-title {
  margin: 0 0 24px;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.05;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  position: relative;
  padding-bottom: 20px;
}

.profile-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
}

.profile-meta-line {
  margin: 0 0 20px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: inline-block;
  padding: 8px 20px;
  background: var(--blue-soft);
  border-radius: 100px;
  border: 1px solid var(--line);
}

.profile-actions {
  justify-content: flex-start;
  margin-top: 32px;
}

.profile-media {
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-strong);
  position: relative;
  transition: all var(--transition-normal);
}

.profile-media:hover {
  transform: translateY(-8px);
  box-shadow: 0 40px 80px rgba(18, 57, 114, 0.2);
}

.profile-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 95, 180, 0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 1;
}

.profile-media:hover::before {
  opacity: 1;
}

.profile-media img {
  min-height: 480px;
  object-fit: cover;
  width: 100%;
  height: 100%;
  transition: transform 0.8s ease;
}

.profile-media:hover img {
  transform: scale(1.05);
}

.metrics-band {
  position: relative;
  overflow: hidden;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--blue-extra-soft) 0%, #ffffff 100%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.metrics-band::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-light), transparent);
  opacity: 0.3;
}

.metrics-backdrop {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  filter: grayscale(0.2) blur(20px);
  opacity: 0.05;
  transform: scale(1.1);
}

.metrics-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-light);
  overflow: hidden;
}

.metric-box {
  padding: 40px 30px;
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
}

.metric-box:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-4px);
}

.metric-box:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line), transparent);
}

.stat-card {
  padding: 32px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-strong);
  border-color: var(--blue-light);
}

.metric-box strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(48px, 5vw, 80px);
  line-height: 0.9;
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 10px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 0.9;
  color: var(--blue);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-box span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.stat-card span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-soft), transparent);
  opacity: 0.5;
}

.section-head {
  gap: 32px;
  margin-bottom: 40px;
  align-items: flex-end;
}

.text-link {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
  transition: all var(--transition-fast);
}

.text-link::after {
  content: " →";
  display: inline-block;
  transition: transform var(--transition-fast);
}

.text-link:hover {
  color: var(--accent-dark);
}

.text-link:hover::after {
  transform: translateX(4px);
}

.text-link::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.text-link:hover::before {
  transform: scaleX(1);
}

.intro-grid,
.split-grid,
.inquiry-grid,
.inquiry-stage-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
  gap: 32px;
}

.company-intro {
  padding-top: 24px;
}

.intro-visual,
.visual-panel,
.article-cover {
  overflow: hidden;
  border-radius: 32px;
  background: #fff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
}

.intro-visual img,
.visual-panel img,
.article-cover img,
.article-cover {
  min-height: 100%;
  object-fit: cover;
}

.product-stage-clean,
.application-stage-clean {
  background: #fff;
}

.series-head {
  max-width: 1000px;
  margin: 0 auto 48px;
  text-align: center;
}

.series-summary {
  max-width: 900px;
  margin: 24px auto 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 18px;
}

.series-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.series-tabs span,
.series-tabs button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  border: none;
  cursor: pointer;
}

.series-tabs span::before,
.series-tabs button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.series-tabs span:hover,
.series-tabs button:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.3);
}

.series-tabs span:hover::before,
.series-tabs button:hover::before {
  opacity: 1;
}

.series-tabs span.active,
.series-tabs button.active {
  background: var(--accent);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.3);
}

.series-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.series-grid-5col {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.series-card {
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-light);
  transition: all var(--transition-normal);
  position: relative;
}

.series-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
  border-color: var(--blue-light);
}

.series-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 95, 180, 0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 1;
}

.series-card:hover::before {
  opacity: 1;
}

.series-card img {
  aspect-ratio: 1.1 / 0.8;
  object-fit: cover;
  width: 100%;
  height: 240px;
  transition: transform 0.6s ease;
}

.series-card:hover img {
  transform: scale(1.05);
}

.series-card-body {
  padding: 24px;
  position: relative;
  z-index: 2;
}

.series-card h3 {
  margin: 16px 0 12px;
  font-size: 24px;
  line-height: 1.2;
  color: var(--ink);
  font-weight: 700;
}

.series-card p {
  color: var(--muted);
  line-height: 1.7;
  margin: 0 0 16px;
  font-size: 15px;
}

.series-card a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
  transition: all var(--transition-fast);
  font-size: 15px;
}

.series-card a::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.series-card a:hover {
  color: var(--accent-dark);
  gap: 12px;
}

.series-card a:hover::after {
  transform: translateX(4px);
}

.product-showcase-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) 360px;
  gap: 18px;
}

.product-spotlight,
.product-mini,
.capability-card,
.application-card,
.news-feature,
.inquiry-form,
.contact-card,
.quote-block,
.article-body,
.product-card,
.news-card,
.advantage-card {
  background: #fff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
}

.product-spotlight {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.96fr);
  border-radius: 30px;
  overflow: hidden;
}

.product-spotlight-media img {
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.product-spotlight-copy,
.product-mini > div,
.news-feature-copy,
.article-body,
.product-card-body,
.news-card-body,
.contact-card,
.quote-block {
  padding: 26px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-spotlight-copy h3,
.product-mini h3,
.product-card h3,
.news-card h3,
.news-feature h3,
.capability-card h3,
.application-card h3,
.contact-card h3,
.advantage-card h3 {
  margin: 16px 0 10px;
  font-size: 30px;
  line-height: 1.06;
}

.product-mini h3,
.product-card h3,
.news-card h3,
.news-feature h3,
.capability-card h3,
.application-card h3,
.contact-card h3,
.advantage-card h3 {
  font-size: 23px;
}

.product-stack {
  display: grid;
  gap: 16px;
}

.product-mini {
  display: grid;
  grid-template-columns: 128px 1fr;
  overflow: hidden;
  border-radius: 24px;
}

.product-mini img {
  height: 100%;
  min-height: 170px;
  object-fit: cover;
}

.product-mini a,
.product-card a,
.news-card a,
.news-feature a {
  display: inline-flex;
  margin-top: 14px;
  color: var(--blue);
  font-weight: 800;
}

.spec-list,
.detail-specs {
  display: grid;
  gap: 12px;
  margin: 22px 0;
}

.spec-list div,
.detail-specs div {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  background: #f7faff;
  border: 1px solid #e4edf8;
}

.spec-list dt,
.detail-specs dt {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.spec-list dd,
.detail-specs dd {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
}

.credibility-band {
  background: linear-gradient(180deg, #f6f9fe 0%, #fff 100%);
}

.capability-grid,
.advantage-grid {
  display: grid;
  gap: 16px;
}

.capability-card,
.advantage-card {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  align-items: start;
  padding: 24px 26px;
  border-radius: 24px;
}

.capability-index,
.advantage-index,
.application-number {
  color: rgba(23, 74, 147, 0.18);
  font-family: var(--font-display);
  line-height: 0.9;
}

.capability-index,
.advantage-index {
  font-size: 82px;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

/* 核心行业优势 - 借鉴应用领域设计风格 */
.advantage-grid-new {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.advantage-card-new {
  background: #fff;
  border-radius: 24px;
  padding: 32px 28px 28px;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card-new:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(23, 74, 147, 0.1);
}

.advantage-num-new {
  display: block;
  font-family: var(--font-display);
  font-size: 56px;
  line-height: 1;
  color: rgba(23, 74, 147, 0.15);
  margin-bottom: 20px;
  letter-spacing: -2px;
}

.advantage-card-new h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: #1a1a2e;
  line-height: 1.3;
}

.advantage-card-new p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #666;
}

@media (max-width: 940px) {
  .advantage-grid-new {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
  
  .advantage-card-new {
    padding: 24px 22px 20px;
  }
  
  .advantage-num-new {
    font-size: 48px;
    margin-bottom: 16px;
  }
  
  .advantage-card-new h3 {
    font-size: 18px;
  }
}

@media (max-width: 720px) {
  .advantage-grid-new {
    grid-template-columns: 1fr;
  }
}

.application-card {
  min-height: 250px;
  padding: 22px;
  border-radius: 24px;
}

.application-number {
  display: block;
  margin-bottom: 26px;
  font-size: 56px;
}

.partner-stage {
  position: relative;
  overflow: hidden;
  padding: 84px 0;
  background: #071427;
}

.partner-stage-backdrop,
.partner-stage-overlay {
  position: absolute;
  inset: 0;
}

.partner-stage-backdrop {
  background-position: center;
  background-size: cover;
  filter: brightness(0.18) saturate(0.84);
  transform: scale(1.04);
}

.partner-stage-overlay {
  background:
    linear-gradient(90deg, rgba(6, 17, 36, 0.7) 0%, rgba(6, 17, 36, 0.42) 52%, rgba(5, 12, 24, 0.9) 100%),
    radial-gradient(circle at top left, rgba(23, 74, 147, 0.26), rgba(23, 74, 147, 0));
}

.partner-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 34px;
  align-items: center;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.partner-card {
  position: relative;
  min-height: 136px;
  padding: 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.18);
  display: grid;
  gap: 8px;
  align-content: center;
  overflow: hidden;
}

.partner-logo {
  width: 100%;
  height: 50px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  margin-bottom: 4px;
}

.partner-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue) 0%, #6ca5ff 100%);
}

.partner-tag {
  display: inline-flex;
  align-items: center;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.partner-card strong {
  color: #1a2634;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.08;
}

.partner-alias {
  color: #68778a;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.partner-copy {
  padding-left: 10px;
}

.partner-kicker {
  color: rgba(255, 255, 255, 0.74);
}

.partner-title {
  color: #fff;
}

.partner-summary {
  color: rgba(255, 255, 255, 0.8);
  max-width: 430px;
}

.factory-stage-clean,
.news-stage-clean {
  background: #fff;
}

.factory-wall,
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.factory-wall figure,
.gallery-grid img {
  margin: 0;
  overflow: hidden;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
}

.factory-wall img,
.gallery-grid img {
  aspect-ratio: 1.05 / 1;
  object-fit: cover;
}

.point-list,
.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.point-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.point-list li {
  display: flex;
  gap: 12px;
  color: var(--muted);
}

.point-list li::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--blue);
  flex: none;
}

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

.news-feature,
.news-card,
.product-card {
  overflow: hidden;
  border-radius: 26px;
}

.news-feature img,
.news-card img,
.product-card img {
  aspect-ratio: 1.1 / 0.88;
  object-fit: cover;
}

.news-feature span,
.news-card span {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.news-source {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

/* 地图区域 */
.map-section {
  padding: 0 0 80px;
}

.map-wrapper {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.map-wrapper iframe {
  display: block;
}

/* 新闻卡片 - 无图片版 */
.news-feature-noimg,
.news-card-noimg {
  padding: 28px 26px !important;
}

.news-feature-noimg .news-feature-copy,
.news-card-noimg .news-card-body {
  padding: 0 !important;
}

.news-feature-noimg h3,
.news-card-noimg h3 {
  font-size: 18px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.product-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid #d8e4f3;
  background: #fff;
  color: var(--ink);
  font-weight: 700;
}

.filter-chip span {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: #edf3fb;
  color: var(--blue);
  font-size: 12px;
}

.filter-chip.is-active,
.filter-chip:hover {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.filter-chip.is-active span,
.filter-chip:hover span {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.inquiry-stage-clean {
  padding-bottom: 110px;
}

.inquiry-stage-grid {
  padding: 34px;
  border-radius: 32px;
  background: linear-gradient(135deg, #f4f8ff 0%, #ffffff 100%);
  border: 1px solid #e1ebf6;
  box-shadow: var(--shadow);
}

.inquiry-copy {
  padding: 10px 0;
}

.quote-direct-card {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 18px;
  border-radius: 24px;
  background: linear-gradient(135deg, #ffffff 0%, #edf5ff 100%);
  border: 1px solid #dbe8f6;
  box-shadow: 0 18px 40px rgba(12, 43, 95, 0.08);
}

.quote-direct-qr {
  width: 220px;
  height: 120px;
  object-fit: contain;
  border-radius: 18px;
  background: #fff;
  padding: 8px;
  border: 1px solid #dde8f5;
}

.quote-direct-copy {
  display: grid;
  gap: 8px;
}

.quote-direct-copy strong {
  color: var(--blue-dark);
  font-size: 18px;
  letter-spacing: 0.02em;
}

.quote-direct-copy p {
  margin: 0;
  color: var(--muted);
}

.quote-direct-copy a {
  color: var(--blue);
  font-weight: 700;
}

.inquiry-form {
  padding: 26px;
  border-radius: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.inquiry-form label {
  display: grid;
  gap: 8px;
}

.inquiry-form label.full,
.inquiry-form .full {
  grid-column: 1 / -1;
}

.inquiry-form span {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid #d9e5f3;
  background: #f9fbfe;
  color: var(--ink);
  font: inherit;
}

.page-hero {
  padding: 62px 0 24px;
  background: linear-gradient(180deg, #f7fbff 0%, #fff 100%);
}

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

.contact-card,
.quote-block {
  border-radius: 24px;
}

.quote-block {
  color: var(--blue-dark);
  font-size: 22px;
  line-height: 1.55;
}

.qr-panel {
  width: min(100%, 320px);
  max-width: 320px;
  padding: 10px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid #dde8f5;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.article-layout {
  display: grid;
  gap: 24px;
}

.article-body {
  border-radius: 26px;
}

.article-source-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.article-source-bar a {
  color: var(--blue);
  font-weight: 700;
}

.article-body p {
  color: var(--muted);
  margin: 0 0 18px;
}

.site-footer {
  padding: 80px 0 40px;
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0a1a36 100%);
  color: rgba(255, 255, 255, 0.88);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.site-footer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="0 0 200 200"><rect width="200" height="200" fill="none" stroke="rgba(255,255,255,0.02)" stroke-width="1" stroke-dasharray="2 2"/></svg>');
  background-size: 200px 200px;
  opacity: 0.3;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.footer-tag {
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  display: inline-block;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid h3,
.footer-grid h4 {
  margin: 0 0 20px;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  position: relative;
  padding-bottom: 12px;
}

.footer-grid h3::after,
.footer-grid h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
}

.footer-list {
  display: grid;
  gap: 14px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-list li {
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
  position: relative;
  padding-left: 0;
}

.footer-list li::before {
  content: '•';
  position: absolute;
  left: -16px;
  color: var(--accent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.footer-list li:hover {
  color: #fff;
  padding-left: 16px;
  transform: translateX(4px);
}

.footer-list li:hover::before {
  opacity: 1;
}

.footer-list a {
  color: inherit;
  text-decoration: none;
  display: block;
}

.footer-qr {
  text-align: center;
}

.footer-qr img {
  width: min(100%, 220px);
  max-width: 220px;
  object-fit: contain;
  background: #fff;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  transition: all var(--transition-normal);
  margin-bottom: 12px;
}

.footer-qr img:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.3);
}

.footer-qr span {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.footer-bottom {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  gap: 24px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.footer-bottom span {
  transition: color var(--transition-fast);
}

.footer-bottom span:hover {
  color: rgba(255, 255, 255, 0.9);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 1180px) {
  .product-showcase-grid,
  .intro-grid,
  .profile-grid,
  .split-grid,
  .inquiry-grid,
  .inquiry-stage-grid,
  .partner-shell {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .metrics-grid,
  .metrics-shell,
  .stat-grid,
  .application-grid,
  .series-grid,
  .series-grid-5col,
  .partner-grid,
  .news-stage-grid,
  .news-grid,
  .product-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .product-spotlight {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: clamp(48px, 8vw, 80px);
  }
  
  .section-title {
    font-size: clamp(36px, 6vw, 56px);
  }
  
  .profile-title {
    font-size: clamp(36px, 6vw, 56px);
  }
}

@media (max-width: 940px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
    border-radius: 20px;
    background: #fff;
    box-shadow: var(--shadow);
    border: 1px solid var(--line);
  }

  .site-nav.is-open {
    display: flex;
  }

  .header-phone {
    padding-left: 0;
  }

  .brand-logo {
    max-width: 300px;
  }

  .nav-toggle {
    display: inline-block;
  }

  .lang-switcher {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-clean,
  .hero-center {
    min-height: 640px;
  }

  .capability-card,
  .advantage-card {
    grid-template-columns: 1fr;
  }

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

  .partner-copy {
    padding-left: 0;
  }
}

@media (max-width: 720px) {
  :root {
    --container: min(1240px, calc(100vw - 28px));
  }

  .topbar-inner {
    min-height: 36px;
  }

  .topbar-welcome {
    display: none;
  }

  .brand-copy span {
    display: none;
  }

  .brand-logo {
    max-width: 250px;
  }

  .hero-title {
    font-size: clamp(40px, 14vw, 66px);
  }

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

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

  .section {
    padding: 26px 0 70px;
  }

  .metrics-grid,
  .metrics-shell,
  .stat-grid,
  .application-grid,
  .series-grid,
  .series-grid-5col,
  .news-stage-grid,
  .news-grid,
  .product-grid,
  .footer-grid,
  .factory-wall,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .product-mini img {
    min-height: 220px;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .metric-box:not(:last-child) {
    border-right: 0;
    border-bottom: 1px solid rgba(23, 74, 147, 0.18);
  }

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

  .quote-direct-card {
    grid-template-columns: 1fr;
  }

  .quote-direct-qr {
    width: min(100%, 260px);
    height: auto;
    margin: 0 auto;
  }

  .quote-direct-copy {
    text-align: center;
  }
}

@media (max-width: 520px) {
  .partner-grid {
    grid-template-columns: 1fr;
  }
}

/* 视频播放器样式 */
.video-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--bg-soft) 0%, #fff 100%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.video-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.video-header {
  text-align: center;
  margin-bottom: 40px;
}

.video-kicker {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 8px 20px;
  background: rgba(255, 107, 53, 0.1);
  border-radius: 100px;
  border: 1px solid rgba(255, 107, 53, 0.2);
}

.video-title {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.1;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  margin: 0 0 16px;
}

.video-subtitle {
  max-width: 700px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.video-player-wrapper {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-strong);
  background: #000;
}

.video-player {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
}

.video-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  display: flex;
  align-items: center;
  justify-content: space-between;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.video-player-wrapper:hover .video-controls {
  opacity: 1;
}

.video-play-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all var(--transition-fast);
}

.video-play-btn:hover {
  background: var(--accent-dark);
  transform: scale(1.1);
}

.video-time {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.video-caption {
  text-align: center;
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
  font-style: italic;
}

/* 响应式视频样式 */
@media (max-width: 940px) {
  .video-section {
    padding: 60px 0;
  }
  
  .video-title {
    font-size: clamp(32px, 5vw, 48px);
  }
}

@media (max-width: 720px) {
  .video-section {
    padding: 40px 0;
  }
  
  .video-subtitle {
    font-size: 16px;
  }
  
  .video-play-btn {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }
}

/* 轮播图样式 */
.carousel-section {
  position: relative;
  overflow: hidden;
  background: var(--bg-soft);
}

.carousel-container {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

.carousel-track {
  display: flex;
  transition: transform var(--transition-normal);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  min-width: 100%;
  height: 600px;
  position: relative;
  overflow: hidden;
}

.carousel-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition-slow);
}

.carousel-slide:hover .carousel-image {
  transform: scale(1.05);
}

.carousel-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.6) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-content {
  text-align: center;
  color: #fff;
  max-width: 800px;
  padding: 0 40px;
  z-index: 2;
}

.carousel-title {
  font-size: clamp(42px, 5vw, 64px);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.carousel-subtitle {
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.5;
  margin-bottom: 30px;
  opacity: 0.9;
  text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}

.carousel-btn {
  display: inline-block;
  padding: 16px 40px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: all var(--transition-fast);
  box-shadow: 0 12px 40px rgba(255, 107, 53, 0.3);
  border: 2px solid transparent;
}

.carousel-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(255, 107, 53, 0.4);
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10;
}

.carousel-prev,
.carousel-next {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all var(--transition-fast);
}

.carousel-prev:hover,
.carousel-next:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.carousel-dots {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 12px;
  z-index: 10;
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel-dot.active {
  background: var(--accent);
  transform: scale(1.2);
}

.carousel-dot:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* 响应式轮播图 */
@media (max-width: 1180px) {
  .carousel-slide {
    height: 500px;
  }
  
  .carousel-title {
    font-size: clamp(36px, 4vw, 52px);
  }
}

@media (max-width: 940px) {
  .carousel-slide {
    height: 400px;
  }
  
  .carousel-prev,
  .carousel-next {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }
  
  .carousel-dots {
    bottom: 20px;
  }
}

@media (max-width: 720px) {
  .carousel-slide {
    height: 350px;
  }
  
  .carousel-content {
    padding: 0 20px;
  }
  
  .carousel-title {
    font-size: clamp(28px, 5vw, 40px);
  }
  
  .carousel-subtitle {
    font-size: 16px;
  }
  
  .carousel-btn {
    padding: 14px 30px;
    font-size: 14px;
  }
  
  .carousel-nav {
    padding: 0 10px;
  }
  
  .carousel-prev,
  .carousel-next {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}