.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 2 * var(--page-x));
  max-width: 1200px;
  z-index: 25;
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 10px 10px 10px 20px;
  background: rgba(255, 255, 255, .10);
  border: none;
  box-shadow: none;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 8px;
  transition: top .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, backdrop-filter .25s ease, transform .25s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, .50);
  border: none;
  box-shadow: 0 18px 60px rgba(0, 0, 0, .10);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.site-header.menu-open {
  background: rgba(13, 14, 16, 0.98) !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: blur(6px) !important;
  -webkit-backdrop-filter: blur(6px) !important;
}

.site-header.menu-open .brand img {
  filter: brightness(0) invert(1) !important;
}

.site-header.menu-open .header-cta {
  background: #ffffff !important;
  border: 1px solid #ffffff !important;
  color: var(--color-ink) !important;
}

.site-header.menu-open .header-cta:hover {
  background: var(--color-mint) !important;
  border-color: var(--color-mint) !important;
  color: var(--color-night) !important;
}

.site-header.menu-open .menu-toggle {
  background: var(--color-mint) !important;
  border-color: var(--color-mint) !important;
  color: var(--color-night) !important;
}

.site-header.menu-open .menu-toggle:hover {
  background: #ffffff !important;
  border-color: #ffffff !important;
  color: var(--color-ink) !important;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand img {
  width: 146px;
  height: auto;
  transition: filter .25s ease;
}

/* 默认在深色背景首屏时，LOGO 图标反白显示 */
.site-header .brand img {
  filter: brightness(0) invert(1);
}

/* 滚动后，LOGO 恢复原有的黑色显示 */
.site-header.is-scrolled .brand img {
  filter: none;
}

.desktop-nav {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 默认在深色背景下，菜单按钮的样式 */
.site-header .menu-toggle {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #ffffff;
  border: 1px solid #ffffff;
  color: var(--color-ink);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
  width: 38px;
  height: 38px;
  min-height: 0;
}

.site-header .menu-toggle:hover {
  background: var(--color-mint);
  border-color: var(--color-mint);
  color: var(--color-night);
}

/* 滚动到浅色背景后，菜单按钮的样式 */
.site-header.is-scrolled .menu-toggle {
  background: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.site-header.is-scrolled .menu-toggle:hover {
  background: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}

/* 默认在深色背景下，预约演示按钮的样式 */
.site-header .header-cta {
  background: #ffffff;
  border: 1px solid #ffffff;
  color: var(--color-ink);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
  height: 38px;
  min-height: 0;
  padding: 0 56px;
  font-size: 14px;
}

.site-header .header-cta:hover {
  background: var(--color-mint);
  border-color: var(--color-mint);
  color: var(--color-night);
}

/* 滚动到浅色背景后，预约演示按钮的样式 */
.site-header.is-scrolled .header-cta {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}

.site-header.is-scrolled .header-cta:hover {
  background: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
}

.menu-toggle span {
  position: relative;
  transition: background-color .2s ease;
  flex-shrink: 0 !important;
  /* 核心修复：防止 iOS Safari 在 Flex 布局中压缩中间 span 线条 */
  min-width: 18px !important;
}

.menu-toggle span::before,
.menu-toggle span::after {
  position: absolute;
  left: 0;
  content: "";
  transition: transform .2s ease, top .2s ease;
}

.menu-toggle span::before {
  top: -6px;
}

.menu-toggle span::after {
  top: 6px;
}

/* 点击打开导航栏后，变成 X 关闭按钮 */
.menu-toggle[aria-expanded="true"] span {
  background-color: transparent !important;
}

.menu-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

.menu-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 24;
  padding: 140px var(--page-x) 60px;
  background: rgba(13, 14, 16, .98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
  overflow-y: auto;
}

.menu-panel.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.menu-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.menu-column {
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  padding-top: 20px;
}

.menu-column__label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.menu-column__links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.menu-column__link {
  display: block;
  font-size: 20px;
  font-weight: 500;
  color: #ffffff;
  text-decoration: none;
  transition: color .2s ease, transform .2s ease;
}

.menu-column__link:hover {
  color: var(--color-mint);
  transform: translateX(4px);
}

.hero {
  position: relative;
  z-index: 0;
  min-height: 100svh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px var(--page-x);
  background: var(--color-night);
  color: var(--color-paper);
}

.hero::after {
  position: fixed;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(13, 14, 16, .35), rgba(13, 14, 16, .00) 54%, rgba(13, 14, 16, .25)),
    linear-gradient(180deg, rgba(13, 14, 16, .00), rgba(13, 14, 16, .35));
  pointer-events: none;
  z-index: 1;
}

.hero__media {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 0;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  opacity: 0;
  z-index: 1;
  transform: translate3d(1.8%, 1%, 0) scale(1.025);
  transform-origin: center;
  transition:
    opacity 1.0s cubic-bezier(.45, 0, .18, 1),
    transform 1.2s cubic-bezier(.22, .78, .24, 1);
  will-change: opacity, transform;
  backface-visibility: hidden;
  contain: paint;
}

/* 激活状态：用较短叠化衔接持续镜头运动，避免画面中段停顿 */
.carousel-slide.is-active {
  opacity: .96;
  z-index: 3;
  transform: translate3d(0, 0, 0) scale(1) !important;
}

/* 退场状态：轻微错位退场，让两张图之间形成电影叠化 */
.carousel-slide.is-prev {
  opacity: 0;
  z-index: 2;
  transform: translate3d(-1.4%, -.6%, 0) scale(1.018) !important;
}

.carousel-slide img {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  max-width: none;
  transform: translate3d(0, 0, 0) scale(1.012);
  transform-origin: center;
  will-change: object-position, transform;
  backface-visibility: hidden;
}

.carousel-slide img {
  animation: cinematic-drift-a 18s linear infinite;
}

@keyframes cinematic-drift-a {
  0% {
    object-position: 48% 34%;
    transform: translate3d(-.8%, .2%, 0) scale(1.018);
  }

  34% {
    object-position: 50% 50%;
    transform: translate3d(.2%, 0, 0) scale(1.01);
  }

  68% {
    object-position: 52% 67%;
    transform: translate3d(.9%, -.2%, 0) scale(1.016);
  }

  100% {
    object-position: 48% 34%;
    transform: translate3d(-.8%, .2%, 0) scale(1.018);
  }
}

@media (max-aspect-ratio: 4 / 5) {
  .carousel-slide img {
    animation-name: cinematic-drift-mobile-a;
  }
}

@keyframes cinematic-drift-mobile-a {
  0% {
    object-position: 30% 50%;
    transform: translate3d(.2%, -.5%, 0) scale(1.012);
  }

  50% {
    object-position: 70% 52%;
    transform: translate3d(-.2%, .5%, 0) scale(1.018);
  }

  100% {
    object-position: 30% 50%;
    transform: translate3d(.2%, -.5%, 0) scale(1.012);
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(38px, 5.5vw, 68px);
  font-weight: 500;
  line-height: 1.25;
  text-align: center;
}

.hero-title__phrase {
  white-space: nowrap;
}

.hero__scroll-down {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: color 0.2s ease, transform 0.2s ease;
}

.hero__scroll-down:hover {
  color: var(--color-mint);
  transform: translate(-50%, 4px);
}

.hero__scroll-down svg {
  width: 20px;
  height: 20px;
  animation: bounce 2s infinite;
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-6px);
  }

  60% {
    transform: translateY(-3px);
  }
}

.page-shell>.section:not(.hero) {
  position: relative;
  z-index: 4;
}

.hero-visual-disclaimer {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px var(--page-x) 0;
  background: var(--color-paper-soft);
  color: var(--color-muted);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: .02em;
}

.hero-visual-disclaimer svg {
  width: 13px;
  height: 13px;
  flex: 0 0 auto;
  opacity: .72;
}

.hero-visual-disclaimer + .section-answer {
  padding-top: clamp(44px, 6vw, 72px);
}

.section-answer {
  background: var(--color-paper-soft);
}

.diagram-panel {
  margin-top: 0;
  border: var(--line);
  background: #ffffff;
  overflow: hidden;
}

.diagram-wrapper {
  position: relative;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  transform: translateX(-84px);
}

.diagram-wrapper img {
  display: block;
  width: 100%;
  height: auto;
  /* 图片整体水平居中 */
}

.diagram-callout {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: none;
  z-index: 10;
}

.mobile-layer-tag,
.diagram-mobile-legend {
  display: none;
}

/* 顶部、中部、底部的百分比定位以贴合 3D 等距叠层右侧边缘（此时图片已居中），并引入上下浮动微动效 */
.callout-right-action {
  top: calc(27% - 30px);
  /* 与左侧“金安智元”高度完全一致 */
  left: 605px;
  /* 顶层右侧尖角定位点 */
  width: 330px;
  animation: float-y 4s ease-in-out infinite;
}

.callout-right-ontology {
  top: calc(50% - 30px);
  /* 与左侧“金安本体”高度完全一致 */
  left: 605px;
  /* 中层右侧尖角定位点 */
  width: 330px;
  animation: float-y 4.5s ease-in-out infinite 0.7s;
}

.callout-right-data {
  top: calc(74% - 30px);
  /* 与左侧“金安星云”高度完全一致，且精准对齐底层右边缘 */
  left: 540px;
  /* 底层右侧多源数据文件堆右边缘定位点 */
  width: 395px;
  animation: float-y 3.8s ease-in-out infinite 0.3s;
}

.callout-text {
  flex: 1;
  text-align: right;
  background: rgba(247, 247, 247, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.callout-text strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 2px;
}

.callout-text span {
  display: block;
  font-size: 12px;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

.callout-line {
  width: 220px;
  /* 虚线延长 50px，将连接圆点精准推向右侧 3D 插图边缘 */
  height: 1px;
  border-bottom: 1px dashed var(--color-line-soft);
  flex-shrink: 0;
}

.callout-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-mint);
  box-shadow: 0 0 0 3px rgba(163, 190, 245, 0.3);
  flex-shrink: 0;
  animation: pulse-mint 2s infinite ease-in-out;
}

@keyframes pulse-mint {

  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 3px rgba(163, 190, 245, 0.3);
  }

  50% {
    transform: scale(1.15);
    box-shadow: 0 0 0 6px rgba(163, 190, 245, 0);
  }
}

@keyframes float-y {

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

  50% {
    transform: translateY(-6px);
    /* 向上轻微浮动 6px */
  }
}

/* 移动端标签显示由 responsive.css 等比 scale 整体控制，这里移除隐藏规则以确保全量渲染 */


.answer-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 40px;
}

.answer-step {
  position: relative;
  min-height: 142px;
  padding: 32px 36px 0 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform 0.3s ease;
}

.answer-step:hover {
  transform: translateY(-4px);
}

.answer-step__number {
  font-family: var(--font-mono, monospace);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-mint);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  background: rgba(163, 190, 245, 0.12);
  padding: 2px 8px;
  border-radius: 2px;
  border: 1px solid rgba(163, 190, 245, 0.2);
  display: inline-block;
}

.answer-step__title {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 10px;
  display: block;
}

.answer-step__detail {
  font-size: 14px;
  color: var(--color-ink-soft);
  line-height: 1.55;
  display: block;
}

.answer-step__grid {
  display: grid;
  grid-template-columns: max-content max-content;
  /* 改为紧凑的双列最大内容宽度布局，防止文字过宽拉伸 */
  gap: 12px 32px;
  /* 横向间距聚拢至 32px，纵向 12px */
  width: 100%;
  margin-top: 18px;
}

.answer-step__subitem {
  display: flex;
  align-items: center;
  gap: 8px;
}

.answer-step__subitem svg.lucide {
  width: 14px;
  height: 14px;
  color: var(--color-ink-soft);
  stroke-width: 1.5px;
  flex-shrink: 0;
}

.answer-step__subitem span {
  font-size: 13px;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

/* 顺序指引：在步骤之间渲染指向右侧的虚线箭头 */
.answer-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: 18px;
  top: 32px;
  font-size: 18px;
  font-family: var(--font-mono, monospace);
  color: var(--color-mint);
  opacity: 0.75;
  transition: transform 0.3s ease;
}

.answer-step:hover:not(:last-child)::after {
  transform: translateX(6px);
}



.section-platform {
  background: var(--color-paper);
  padding-bottom: clamp(72px, 8vw, 112px);
}

.product-index {
  margin-top: 0;
  border-top: var(--line);
}

.product-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 1fr) var(--featured-image-w) minmax(280px, 360px);
  align-items: center;
  gap: clamp(22px, 2vw, 36px);
  padding: clamp(48px, 5.4vw, 76px) 0;
  border-bottom: 1px solid var(--color-line-subtle);
  cursor: pointer;
}

.product-row:last-child {
  border-bottom: 0;
}

.product-row--featured {
  --featured-image-h: clamp(176px, 17vw, 250px);
  --featured-image-w: clamp(300px, 26vw, 420px);
  --featured-image-half-w: clamp(150px, 13vw, 210px);
  --product-symbol-size: clamp(128px, 12.5vw, 220px);
  overflow: hidden;
}

.product-row__visual {
  position: relative;
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
}

.product-row h3 {
  margin: 0;
  font-size: clamp(48px, 7.2vw, 104px);
  font-weight: 400;
  line-height: .96;
  white-space: nowrap;
  transform: translate(0, 0);
  transition:
    color .24s ease,
    transform .34s cubic-bezier(.2, .85, .25, 1);
  will-change: transform;
}

.product-row__media {
  position: relative;
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  width: var(--featured-image-w);
  min-width: var(--featured-image-w);
  height: var(--featured-image-h);
  display: grid;
  place-items: center;
  isolation: isolate;
}

.product-row__symbol {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  color: rgba(30, 33, 36, .16);
  font-family: var(--font-sans);
  font-size: var(--product-symbol-size);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  transform: translateY(2px);
  transition:
    opacity .28s ease,
    transform .34s cubic-bezier(.2, .85, .25, 1);
  user-select: none;
}

.product-row__hover-image {
  position: relative;
  z-index: 2;
  display: block;
  width: var(--featured-image-w);
  height: var(--featured-image-h);
  aspect-ratio: auto;
  /* 移除固定比例，允许自然尺寸 */
  object-fit: contain;
  /* 保持完整图像显示，避免上下裁切 */
  object-position: center;
  opacity: 0;
  filter: saturate(.82) contrast(.96);
  transform: translateY(10px) scale(.9);
  transform-origin: center;
  transition:
    opacity .28s ease,
    filter .28s ease,
    transform .34s cubic-bezier(.2, .85, .25, 1);
}

.product-row--featured:hover .product-row__hover-image,
.product-row--featured:focus-visible .product-row__hover-image {
  opacity: 1;
  filter: saturate(1) contrast(1);
  transform: translateY(-6px) scale(1.34);
}

.product-row--featured:hover .product-row__symbol,
.product-row--featured:focus-visible .product-row__symbol {
  opacity: 0;
  transform: translateY(-12px) scale(.92);
}

.product-row--featured:hover h3,
.product-row--featured:focus-visible h3 {
  transform: translate(14px, -6px);
}

.product-row__body {
  grid-column: 3;
  grid-row: 1;
  padding-top: 0;
  transition: opacity .2s ease;
}

.product-row__body strong {
  display: block;
  margin-bottom: 14px;
  font-size: 20px;
  font-weight: 500;
}

.product-row__body p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 17px;
  line-height: 1.6;
}

.product-row__number {
  display: block;
  margin-bottom: 28px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  text-align: left;
}

.section-agents {
  background: var(--color-night);
  color: var(--color-paper);
}

.section-agents .kicker,
.section-agents .section-heading p {
  color: rgba(255, 255, 255, .62);
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 0;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .20);
}

.agent-card {
  min-height: 300px;
  padding: var(--card-pad);
  background: var(--color-night);
}

.agent-card h3 {
  margin: 0 0 28px;
  font-size: 30px;
  font-weight: 400;
}

.agent-card dl {
  margin: 0;
}

.agent-card dt {
  margin-top: 18px;
  color: var(--color-mint);
  font-family: var(--font-mono);
  font-size: 12px;
}

.agent-card dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
}

.section-scenarios {
  background: var(--color-paper-soft);
}

.scenario-carousel {
  position: relative;
}

.scenario-carousel__viewport {
  overflow: hidden;
  padding-top: 14px;
  padding-bottom: 6px;
  touch-action: pan-y pinch-zoom;
}

.scenario-grid {
  --scenario-visible: 4;
  --scenario-gap: 20px;
  display: flex;
  flex-wrap: nowrap;
  gap: var(--scenario-gap);
  margin-top: 0;
}

.scenario-card {
  --local-pad: var(--card-pad);
  position: relative;
  flex: 0 0 calc((100% - (var(--scenario-visible) - 1) * var(--scenario-gap)) / var(--scenario-visible));
  min-width: 0;
  padding: var(--local-pad) 0;
  display: flex;
  flex-direction: column;
  background: var(--color-paper);
  clip-path: polygon(0 0, calc(100% - 42px) 0, 100% 42px, 100% 100%, 0 100%);
  cursor: pointer;
  transition: box-shadow .28s ease;
}

.scenario-card:hover,
.scenario-card:focus-visible {
  box-shadow: 0 24px 48px rgba(30, 33, 36, .10);
}

.scenario-card:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: -4px;
}

.scenario-card h3 {
  margin: 0;
  padding: 0 var(--local-pad);
  font-size: 22px;
  font-weight: 500;
}

.scenario-card__visual {
  display: block;
  width: 100%;
  height: auto;
  flex: none;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  object-position: center;
  margin: 24px 0 28px;
}

.scenario-card p {
  margin: 0;
  padding: 0 var(--local-pad);
  color: var(--color-ink-soft);
  line-height: 1.6;
}

.scenario-carousel__controls {
  position: absolute;
  top: var(--scenario-control-y, 50%);
  right: 12px;
  left: 12px;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
  pointer-events: none;
}

.scenario-carousel__controls button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-line-soft);
  background: var(--color-paper);
  color: var(--color-ink);
  font-size: 22px;
  line-height: 1;
  pointer-events: auto;
}

.scenario-carousel__controls svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.5;
}

.scenario-carousel__controls button:hover {
  background: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}

.scenario-carousel__controls button:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 3px;
}

.scenario-carousel__status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.section-news {
  background: var(--color-night);
  padding-top: clamp(48px, 5vw, 68px);
  padding-bottom: clamp(56px, 6vw, 80px);
}

.news-section__bar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto 20px;
}

.news-section__bar h2 {
  margin: 0;
  color: var(--color-paper);
  font-size: clamp(28px, 2.6vw, 36px);
  font-weight: 400;
  line-height: 1.2;
}

.news-section__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  color: rgba(255, 255, 255, .62);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.2;
  cursor: pointer;
  transition: color .2s ease, transform .2s ease;
}

.news-section__more:hover,
.news-section__more:focus-visible {
  color: var(--color-mint);
}

.news-section__more svg {
  width: 15px;
  height: 15px;
  stroke-width: 1.5;
  transition: transform .2s ease;
}

.news-section__more:hover svg,
.news-section__more:focus-visible svg {
  transform: translate(2px, -2px);
}

.news-section__more:focus-visible {
  outline: 2px solid var(--color-mint);
  outline-offset: 4px;
}

.news-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, .65fr);
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 1.25vw, 18px);
  max-width: 1120px;
  margin: 0 auto;
  border: 0;
  background: transparent;
}

.news-card {
  min-width: 0;
  border: 0;
  background: var(--color-paper);
}

.news-card--lead,
.news-card--secondary {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto minmax(0, 1fr);
}

.news-card--lead {
  grid-row: span 2;
}

.news-card__cover {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: 0;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, transparent 0 48%, rgba(255, 255, 255, .7) 48.1% 48.7%, transparent 48.8% 100%),
    linear-gradient(45deg, rgba(255, 255, 255, .42) 0 49%, transparent 49.1% 100%),
    #e7e7e7;
}

.news-card__cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #e7e7e7;
}

.news-card__cover::after {
  position: absolute;
  right: 18px;
  bottom: 16px;
  color: rgba(30, 33, 36, .28);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  content: "IMAGE / PENDING";
}

.news-card__cover.has-image::after {
  display: none;
}

.news-card__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 16px;
  padding: clamp(20px, 2.2vw, 28px);
}

.news-card--secondary .news-card__body {
  gap: 12px;
  padding: clamp(16px, 1.7vw, 22px);
}

.news-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.2;
}

.news-card__source {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.news-card__source::after {
  width: 18px;
  border-top: 1px solid var(--color-line);
  content: "";
}

.news-card__date {
  white-space: nowrap;
}

.news-card h3 {
  width: 100%;
  margin: 0;
  color: var(--color-ink);
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 400;
  line-height: 1.36;
}

.news-card--lead h3 {
  max-width: none;
  font-size: clamp(28px, 2.8vw, 44px);
  line-height: 1.28;
}

.news-card--secondary h3 {
  font-size: clamp(18px, 1.7vw, 22px);
}

.security-list {
  margin-top: 0;
  display: grid;
  grid-template-columns: minmax(320px, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(42px, 6vw, 88px);
  padding-top: 48px;
}

.section-security {
  background: var(--color-paper);
}

.security-diagram,
.security-controls {
  background: transparent;
}

.security-diagram {
  min-height: 356px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.security-diagram__svg {
  width: min(100%, 440px);
  height: auto;
}

.security-controls {
  display: block;
}

.security-control {
  display: grid;
  grid-template-columns: 54px minmax(120px, 170px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  min-height: auto;
  padding: 26px 0;
  border-bottom: 1px solid var(--color-line-subtle);
}

.security-control:first-child {
  padding-top: 0;
}

.security-control:last-child {
  border-bottom: 0;
}

.security-control__number {
  display: block;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
}

.security-control h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.28;
}

.security-control p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 15px;
  line-height: 1.65;
}

.section-contact {
  background: var(--color-paper-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 0;
  background: var(--color-line);
  border: var(--line);
}

.contact-card {
  min-height: 240px;
  padding: var(--card-pad);
  background: var(--color-paper);
}

.contact-card h3 {
  margin: 0;
  font-size: 28px;
  font-weight: 400;
}

.contact-card p {
  margin: 70px 0 0;
  color: var(--color-ink-soft);
  line-height: 1.6;
}

.site-footer {
  position: relative;
  z-index: 4;
  padding: 54px var(--page-x);
  background: var(--color-paper-soft);
}

.site-footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2fr);
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

.footer-logo {
  width: 190px;
  display: block;
}

.site-footer p {
  color: var(--color-muted);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  gap: 32px;
}

.footer-column h3 {
  margin: 0 0 18px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
}

.footer-column a {
  display: block;
  margin-top: 10px;
  color: var(--color-ink);
}

/* 页脚左侧品牌与联系信息栏样式 */
.footer-brand-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-copyright {
  margin: 0 !important;
  margin-top: 6px !important;
  font-size: 12px;
  color: var(--color-muted);
  opacity: 0.75;
  line-height: 1.4;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: 2px;
}

.footer-contact-item {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--color-ink-soft);
  word-break: break-all;
}

.footer-contact-label {
  color: var(--color-muted);
  font-weight: 500;
}

.footer-contact-link {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer-contact-link:hover {
  color: var(--color-mint);
  border-bottom-color: var(--color-mint);
}

.footer-column--qr {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  padding-top: 0;
}

.footer-qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
}

.site-footer .footer-qr-img {
  width: 72px;
  height: 72px;
  padding: 4px;
  background: var(--color-paper);
  border: 1px solid var(--color-line-soft);
  border-radius: 4px;
  object-fit: contain;
}

.footer-qr-text {
  font-size: 12px;
  color: var(--color-muted);
  text-align: center;
}

/* 备案信息样式 */
.footer-filing {
  margin-top: -6px !important;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.footer-filing-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-muted);
  opacity: 0.75;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.footer-filing-link:hover {
  color: var(--color-mint);
  opacity: 1;
}

.footer-filing-icon {
  width: 14px;
  height: 14px;
  object-fit: contain;
  display: block;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-filing-link:hover .footer-filing-icon {
  opacity: 1;
}

.footer-filing-police {
  padding-left: 20px;
  font-size: 12px;
  color: var(--color-muted);
  opacity: 0.75;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.footer-filing-police:hover {
  color: var(--color-mint);
  opacity: 1;
}

.flow-connections {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  /* 位于插图 img 之上，文字 callout 之下 */
}

/* 轨道虚线的基础属性与脉动渐变动效 */
.flow-path {
  fill: none;
  stroke: rgba(163, 190, 245, 0.32);
  stroke-width: 1.35px;
  stroke-dasharray: 4 3;
  /* 虚线点缀增强数据流的科技质感 */
  animation: pulse-flow-path 4s ease-in-out infinite;
}

/* 流动光点：应用浅蓝色霓虹滤镜 */
.flow-dot {
  fill: #A3BEF5;
  filter: url(#flow-glow);
}

.flow-dot--sm {
  opacity: .78;
}

.flow-dot--md {
  opacity: .9;
}

.flow-dot--lg {
  opacity: 1;
}

@keyframes pulse-flow-path {

  0%,
  100% {
    stroke-opacity: 0.7;
    stroke: rgba(163, 190, 245, 0.2);
  }

  50% {
    stroke-opacity: 1;
    stroke: rgba(163, 190, 245, 0.45);
  }
}

/* ==========================================================================
   Answer Section - Swapped Left/Right Callouts
   ========================================================================== */

/* 左侧产品卡片统一对齐；三条实线等长并落到图层左边缘 */
.callout-left-zhiyuan,
.callout-left-benti,
.callout-left-xingyun {
  left: -120px;
  width: auto;
}

.callout-left-zhiyuan {
  top: calc(27% - 30px);
  /* 顶层水平线 */
  animation: float-y 4s ease-in-out infinite;
}

.callout-left-benti {
  top: calc(50% - 30px);
  /* 中层水平线 */
  animation: float-y 4.5s ease-in-out infinite 0.7s;
}

.callout-left-xingyun {
  top: calc(74% - 30px);
  /* 底层水平线，与右侧“多源数据层”完全在一水平线上 */
  animation: float-y 3.8s ease-in-out infinite 0.3s;
}

/* 左侧产品卡片：直角、1px黑框实线样式（等宽 88px 实现完美垂直对齐，且自适应左靠外） */
.callout-text-left {
  background: #ffffff;
  border: 1px solid var(--color-ink);
  /* 1px黑边框 */
  padding: 6px 12px;
  border-radius: 0;
  /* 直角 */
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  /* 微弱阴影 */
  width: 88px;
  /* 固定宽度保证卡片绝对左对齐 */
  text-align: center;
  box-sizing: border-box;
  flex-shrink: 0;
  /* 锁死宽度，防止移动端下被弹性挤压为 0 */
}

/* 左侧 1px 黑色实线连接线（通用属性） */
.callout-line-solid {
  height: 1px;
  border-bottom: 1px solid var(--color-ink);
  /* 1px黑色实线连接线 */
  flex-shrink: 0;
}

/* 左侧线条等长，保持整齐的水平标注关系 */
.line-zhiyuan-solid {
  width: 132px;
}

.line-benti-solid {
  width: 132px;
}

.line-xingyun-solid {
  width: 132px;
}

/* 右侧 1px 细虚线连接线（通用属性） */
.callout-line-dashed {
  height: 1px;
  border-bottom: 1px dashed var(--color-line-soft);
  flex-shrink: 0;
}

/* 右侧标签统一对齐；绿点贴近图层右边缘，虚线等长 */
.callout-right-action,
.callout-right-ontology,
.callout-right-data {
  left: 580px;
  width: auto;
}

.line-action {
  width: 84px;
}

.line-ontology {
  width: 84px;
}

.line-data {
  width: 84px;
}

/* 右侧卡片：毛玻璃半透明双行样式（文字向左对齐） */
.callout-text-right-glass {
  flex: 0 0 282px;
  min-width: 0;
  box-sizing: border-box;
  text-align: left;
  /* 文字靠左对齐，符合右侧阅读习惯 */
  background: rgba(247, 247, 247, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.callout-text-right-glass strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 2px;
}

.callout-text-right-glass span {
  display: block;
  font-size: 12px;
  color: var(--color-ink-soft);
  white-space: nowrap;
}