/* Hallmark：保留现有品牌蓝紫体系，只收敛首页的背景、间距和装饰层级。 */
body.home-page {
  --home-section-space: clamp(64px, 6.4vw, 96px);
  --home-section-space-tight: clamp(52px, 5vw, 76px);
  --home-panel-shadow: 0 18px 52px rgba(46, 75, 130, .1);
  background:
    linear-gradient(rgba(52, 120, 246, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(52, 120, 246, .03) 1px, transparent 1px),
    linear-gradient(135deg, rgba(242, 249, 252, .98), rgba(247, 249, 252, .98) 52%, rgba(246, 245, 252, .9));
  background-size: 42px 42px, 42px 42px, auto;
}

body.home-page .section-band {
  padding-block: var(--home-section-space);
}

body.home-page #contact {
  padding-block: var(--home-section-space-tight);
}

body.home-page .section-band::before {
  background: rgba(255, 255, 255, .14);
}

body[data-track="academic"] {
  --active-track: var(--blue);
  --active-track-soft: rgba(52, 120, 246, .1);
}

/* body 的业务状态由 home.js 设置，Academic 与 AI 只切换强调色，不复制整套组件。 */
body[data-track="ai"] {
  --active-track: var(--violet);
  --active-track-soft: rgba(139, 92, 246, .1);
}

/* 图片填满原有槽位，外层尺寸不变，避免接入真实图片后把页面布局撑开。 */
.image-slot--filled {
  align-items: stretch;
  padding: 0;
  background: transparent;
}

.image-slot--filled::before {
  display: none;
}

.home-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.home-image--hero {
  object-position: 72% 48%;
}

.home-image--service {
  object-position: 52% 50%;
}

.home-image--scenario {
  object-position: 50% 50%;
}

.home-image--boundary {
  object-position: 62% 50%;
}

.home-image--process {
  object-position: 58% 50%;
}

.home-image--standard {
  object-position: 50% 50%;
}

.home-image--company {
  object-position: 48% 48%;
}

.hero {
  position: relative;
  min-height: min(900px, calc(100svh - 20px));
  display: flex;
  align-items: center;
  padding: 138px 0 68px;
  overflow: hidden;
  background: var(--canvas);
  border-bottom: 1px solid var(--line);
}

.hero__media {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
}

.hero__media .home-image {
  transform: scale(1.015);
}

.hero__scene {
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247, 249, 252, .98) 0%, rgba(247, 249, 252, .94) 38%, rgba(242, 246, 251, .64) 63%, rgba(238, 243, 248, .24) 100%),
    linear-gradient(0deg, rgba(247, 249, 252, .9) 0%, rgba(247, 249, 252, .12) 46%, rgba(247, 249, 252, .08) 100%),
    linear-gradient(rgba(52, 120, 246, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, .06) 1px, transparent 1px);
  background-size: auto, auto, 44px 44px, 44px 44px;
  pointer-events: none;
}

.hero__scene::after {
  content: "LY / RESEARCH + ENGINEERING";
  position: absolute;
  right: -8px;
  bottom: 34px;
  color: rgba(52, 120, 246, .08);
  font-size: clamp(68px, 11vw, 176px);
  font-weight: 820;
  line-height: .78;
  text-align: right;
}

.hero__grid {
  position: relative;
  z-index: 2;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, .72fr);
  gap: clamp(30px, 4vw, 64px);
  align-items: center;
}

.hero__copy {
  max-width: 860px;
}

.hero h1 {
  max-width: 900px;
  margin: 20px 0 12px;
  font-size: clamp(62px, 6.8vw, 104px);
  font-weight: 680;
  line-height: .94;
}

.hero__statement {
  max-width: 760px;
  margin: 0 0 22px;
  font-size: clamp(32px, 4.2vw, 62px);
  font-weight: 620;
  line-height: 1.04;
}

.spectrum-word {
  color: var(--blue-strong);
}

.hero h1,
.hero__statement,
.section-title,
.scenario-stage__copy h3,
.process-detail h3,
.standard-stage__copy h3,
.service-route h3 {
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
}

.hero__summary {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--ink-soft);
  font-size: clamp(16px, 1.4vw, 20px);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 首屏两个行动入口共用一套玻璃材质，只用透明度和颜色区分主次。 */
body.home-page .hero__actions .button {
  min-width: 190px;
  min-height: 48px;
  justify-content: center;
  color: var(--ink);
  background: rgba(255, 255, 255, .28);
  border: 1px solid rgba(255, 255, 255, .68);
  box-shadow:
    0 12px 34px rgba(46, 75, 130, .1),
    0 1px 0 rgba(255, 255, 255, .72) inset;
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
  transition:
    transform 220ms cubic-bezier(.2, .75, .25, 1),
    background-color 220ms cubic-bezier(.2, .75, .25, 1),
    border-color 220ms cubic-bezier(.2, .75, .25, 1),
    box-shadow 220ms cubic-bezier(.2, .75, .25, 1);
}

body.home-page .hero__actions .button--primary {
  color: #fff;
  background: rgba(45, 105, 230, .78);
  border-color: rgba(255, 255, 255, .5);
  box-shadow:
    0 14px 36px rgba(45, 105, 230, .2),
    0 1px 0 rgba(255, 255, 255, .32) inset;
}

body.home-page .hero__actions .button:hover {
  background: rgba(255, 255, 255, .44);
  border-color: rgba(255, 255, 255, .82);
  box-shadow:
    0 16px 38px rgba(46, 75, 130, .14),
    0 1px 0 rgba(255, 255, 255, .78) inset;
  transform: translateY(-2px);
}

body.home-page .hero__actions .button--primary:hover {
  background: rgba(45, 105, 230, .88);
  border-color: rgba(255, 255, 255, .62);
}

body.home-page .hero__actions .button:active {
  transform: translateY(1px) scale(.99);
}

.hero__side {
  position: relative;
  min-height: 430px;
  align-self: center;
  perspective: 1400px;
}

.hero-tech__frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .34), rgba(230, 240, 255, .16)),
    rgba(244, 248, 253, .18);
  border: 1px solid rgba(255, 255, 255, .68);
  border-radius: var(--radius);
  box-shadow:
    0 30px 84px rgba(46, 75, 130, .16),
    0 1px 0 rgba(255, 255, 255, .76) inset;
  backdrop-filter: blur(18px) saturate(128%);
  -webkit-backdrop-filter: blur(18px) saturate(128%);
}

.hero-tech__frame::before,
.hero-tech__frame::after {
  content: "";
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.hero-tech__frame::before {
  inset: 24px;
  border: 1px solid rgba(72, 112, 195, .14);
  clip-path: polygon(0 0, 34% 0, 34% 1px, 66% 1px, 66% 0, 100% 0, 100% 100%, 66% 100%, 66% calc(100% - 1px), 34% calc(100% - 1px), 34% 100%, 0 100%);
}

.hero-tech__frame::after {
  left: 50%;
  bottom: 28px;
  width: 42%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(52, 120, 246, .4), rgba(139, 92, 246, .38), transparent);
  transform: translateX(-50%);
}

.hero-tech__canvas {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-tech__depth {
  --hero-tilt-x: 0deg;
  --hero-tilt-y: 0deg;
  --hero-scroll-depth: 0px;
  --hero-core-turn: 0deg;
  position: absolute;
  z-index: 3;
  inset: 0;
  transform: rotateX(var(--hero-tilt-x)) rotateY(var(--hero-tilt-y)) translateZ(var(--hero-scroll-depth));
  transform-style: preserve-3d;
  transition: transform 110ms linear;
  pointer-events: none;
}

.hero-tech__axis {
  position: absolute;
  top: 50%;
  width: 34%;
  height: 1px;
  opacity: .56;
}

.hero-tech__axis--research {
  left: 10%;
  background: linear-gradient(90deg, transparent, rgba(52, 120, 246, .72));
  transform: rotate(8deg);
  transform-origin: right;
}

.hero-tech__axis--engineering {
  right: 10%;
  background: linear-gradient(90deg, rgba(139, 92, 246, .68), transparent);
  transform: rotate(-8deg);
  transform-origin: left;
}

.hero-tech__core {
  position: absolute;
  left: 52%;
  top: 50%;
  width: 106px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, .27);
  border: 1px solid rgba(255, 255, 255, .78);
  clip-path: polygon(25% 6%, 75% 6%, 98% 50%, 75% 94%, 25% 94%, 2% 50%);
  box-shadow:
    0 22px 62px rgba(52, 120, 246, .2),
    0 0 0 14px rgba(52, 120, 246, .05);
  backdrop-filter: blur(14px);
  transform: translate(-50%, -50%) rotate(var(--hero-core-turn)) translateZ(58px);
}

.hero-tech__core-mark {
  width: 35%;
  aspect-ratio: 1;
  background: linear-gradient(145deg, rgba(52, 120, 246, .88), rgba(139, 92, 246, .78));
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  box-shadow: 0 10px 24px rgba(52, 120, 246, .24);
}

.hero-tech__node {
  position: absolute;
  width: 14px;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .8);
  transform: rotate(45deg);
}

.hero-tech__node--research-a {
  left: 18%;
  top: 28%;
  background: rgba(52, 120, 246, .78);
  box-shadow: 0 12px 28px rgba(52, 120, 246, .24);
}

.hero-tech__node--research-b {
  left: 27%;
  bottom: 25%;
  background: rgba(20, 184, 240, .72);
}

.hero-tech__node--engineering-a {
  right: 18%;
  top: 29%;
  background: rgba(139, 92, 246, .76);
  box-shadow: 0 12px 28px rgba(139, 92, 246, .22);
}

.hero-tech__node--engineering-b {
  right: 26%;
  bottom: 24%;
  background: rgba(112, 105, 238, .72);
}

.hero-tech__caption {
  position: absolute;
  padding: 7px 9px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, .42);
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 4px;
  box-shadow: 0 10px 28px rgba(46, 75, 130, .1);
  backdrop-filter: blur(10px);
  font-size: 10px;
  font-weight: 680;
  white-space: nowrap;
}

.hero-tech__caption--research {
  left: 10%;
  top: 14%;
}

.hero-tech__caption--engineering {
  right: 9%;
  top: 15%;
}

.hero-tech__caption--output {
  left: 52%;
  bottom: 12%;
  transform: translateX(-50%) translateZ(36px);
}

.section-head--with-visual {
  grid-template-columns: minmax(360px, .82fr) minmax(0, 1.18fr);
  align-items: center;
}

/* 四个核心章节改为同组标题，避免小标签悬在左侧、标题独占右侧的模板感。 */
body.home-page .section-head {
  margin-bottom: clamp(36px, 4.6vw, 56px);
}

body.home-page .section-head--stacked {
  width: min(100%, 880px);
  display: block;
  margin-left: auto;
}

#scenarios .section-head--stacked {
  width: 100%;
}

.scenario-heading-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .56fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
}

.scenario-track-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  padding: 7px;
  background: rgba(255, 255, 255, .46);
  border-color: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 48px rgba(46, 75, 130, .1);
  backdrop-filter: blur(18px) saturate(128%);
  -webkit-backdrop-filter: blur(18px) saturate(128%);
}

.scenario-track-button {
  min-height: 84px;
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, .32);
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  text-align: left;
  cursor: pointer;
  transition:
    color 220ms ease,
    background-color 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    transform 220ms ease;
}

.scenario-track-button:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, .62);
}

.scenario-track-button[aria-selected="true"] {
  color: var(--ink);
  background: rgba(255, 255, 255, .82);
  border-color: color-mix(in srgb, var(--active-track) 52%, transparent);
  box-shadow: 0 12px 28px var(--active-track-soft);
  transform: translateY(-1px);
}

.scenario-track-button__signal {
  width: 8px;
  height: 8px;
  background: var(--active-track);
  border-radius: 2px;
  transform: rotate(45deg);
}

.scenario-track-button strong,
.scenario-track-button small {
  display: block;
}

.scenario-track-button strong {
  font-size: 13px;
}

.scenario-track-button small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.35;
}

/* 四个核心章节共用一条标题基线：编号、标题和内容之间的关系由这一层统一控制。 */
body.home-page .section-band--chapter {
  background: rgba(255, 255, 255, .12);
}

body.home-page .section-band--chapter::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: -1px;
  left: var(--page-pad);
  width: 72px;
  height: 2px;
  background: var(--blue-strong);
}

body.home-page .section-band--chapter .section-head--stacked {
  width: 100%;
  display: block;
  margin: 0 0 clamp(24px, 2.6vw, 32px);
  padding: 0 0 clamp(24px, 2.6vw, 32px);
  border-bottom: 1px solid rgba(87, 107, 143, .2);
}

body.home-page .section-band--chapter .section-head--stacked > div {
  min-width: 0;
}

body.home-page .section-band--chapter .section-kicker {
  margin-bottom: 10px;
}

body.home-page .section-band--chapter .section-title {
  max-width: none;
  font-size: 52px;
  line-height: 1.04;
  white-space: nowrap;
}

body.home-page .section-band--chapter .section-summary {
  max-width: 900px;
  margin-top: 12px;
}

body.home-page .section-head .section-kicker,
body.home-page .about-copy > .section-kicker {
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 680;
  text-transform: none;
}

body.home-page .section-title {
  font-size: clamp(38px, 4.4vw, 66px);
  line-height: 1.04;
}

.service-visual {
  min-height: clamp(260px, 30vw, 420px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .72), rgba(235, 244, 255, .42)),
    radial-gradient(circle at 22% 24%, rgba(20, 184, 240, .2), transparent 30%),
    radial-gradient(circle at 80% 70%, rgba(139, 92, 246, .18), transparent 34%),
    linear-gradient(rgba(52, 120, 246, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(52, 120, 246, .05) 1px, transparent 1px);
  background-size: auto, auto, auto, 34px 34px, 34px 34px;
}

.service-rail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.service-route {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(28px, 4vw, 50px);
  transition: color var(--transition-normal) ease, background var(--transition-normal) ease;
}

.service-route + .service-route {
  border-left: 1px solid var(--line);
}

.service-route:hover {
  color: var(--surface);
  background: rgba(17, 24, 39, .92);
}

.service-route__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 640;
  text-transform: none;
}

.service-route__meta > span:first-child {
  color: var(--ink-soft);
}

.service-route__action {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  white-space: nowrap;
}

.service-route:hover .service-route__meta,
.service-route:hover .service-route__meta > span:first-child,
.service-route:hover .service-route__action,
.service-route:hover p {
  color: rgba(255, 255, 255, .64);
}

.service-route h3 {
  max-width: 520px;
  margin: 42px 0 14px;
  font-size: clamp(34px, 4.1vw, 58px);
  line-height: 1;
}

.service-route p {
  max-width: 520px;
  margin-bottom: 0;
  color: var(--muted);
}

/* 场景舞台整体翻页，文字区和图片区必须保留在同一个容器中。 */
.scenario-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
  perspective: 1600px;
}

.scenario-nav {
  position: relative;
  min-height: 520px;
  min-width: 0;
  border-top: 0;
  perspective: 1200px;
  transform-style: preserve-3d;
  pointer-events: none;
}

.scenario-chip {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 250px;
  height: 210px;
  min-height: 210px;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-content: center;
  align-items: center;
  column-gap: 14px;
  padding: 22px;
  overflow: hidden;
  color: var(--blue-strong);
  background: rgba(225, 238, 255, .54);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow:
    0 20px 44px rgba(46, 75, 130, .12),
    0 1px 0 rgba(255, 255, 255, .76) inset;
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
  text-align: left;
  cursor: pointer;
  pointer-events: auto;
  opacity: .68;
  filter: saturate(.78) brightness(.98);
  transform-origin: center;
  transform-style: preserve-3d;
  will-change: transform, opacity, filter;
  transition:
    transform 700ms cubic-bezier(.2, .78, .24, 1),
    opacity 520ms cubic-bezier(.2, .78, .24, 1),
    filter 520ms cubic-bezier(.2, .78, .24, 1),
    color 420ms cubic-bezier(.2, .78, .24, 1),
    background-color 420ms cubic-bezier(.2, .78, .24, 1),
    border-color 420ms cubic-bezier(.2, .78, .24, 1),
    box-shadow 520ms cubic-bezier(.2, .78, .24, 1);
}

.scenario-chip:disabled {
  pointer-events: none;
  cursor: default;
}

.scenario-chip:hover {
  color: var(--blue-strong);
  background: rgba(232, 241, 255, .84);
  border-color: rgba(52, 120, 246, .38);
  opacity: .84;
}

.scenario-chip[aria-selected="true"] {
  z-index: 3;
  /* 当前卡只承担展示，释放命中区域，让露在其后的两张卡仍可直接点击。 */
  pointer-events: none;
  color: #fff;
  background: rgba(45, 105, 230, .78);
  border-color: rgba(255, 255, 255, .66);
  box-shadow:
    0 30px 66px rgba(45, 105, 230, .25),
    0 1px 0 rgba(255, 255, 255, .38) inset,
    0 0 0 1px rgba(52, 120, 246, .12);
  opacity: 1;
  filter: none;
}

.scenario-chip[aria-selected="true"]::before {
  display: none;
}

.scenario-chip[data-carousel-position="previous"] {
  z-index: 1;
  align-content: start;
  transform-origin: center bottom;
  transform: translate(-50%, -50%) translateY(-112px) translateZ(-72px) rotateX(-2deg) rotateZ(-1.3deg) scale(.94);
}

.scenario-chip[data-carousel-position="active"] {
  z-index: 3;
  transform: translate(-50%, -50%) translateZ(56px) scale(1.02);
}

.scenario-chip[data-carousel-position="next"] {
  z-index: 1;
  align-content: end;
  transform-origin: center top;
  transform: translate(-50%, -50%) translateY(112px) translateZ(-72px) rotateX(2deg) rotateZ(1.3deg) scale(.94);
}

.scenario-chip__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--blue-strong);
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(52, 120, 246, .2);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 780;
  font-variant-numeric: tabular-nums;
}

.scenario-chip__title {
  display: block;
  max-width: 100%;
  font-size: 18px;
  font-weight: 720;
  line-height: 1.2;
  text-wrap: balance;
  transition:
    font-size 520ms cubic-bezier(.2, .78, .24, 1),
    color 420ms cubic-bezier(.2, .78, .24, 1);
}

.scenario-chip[aria-selected="true"] .scenario-chip__number {
  color: #fff;
  background: rgba(255, 255, 255, .16);
  border-color: rgba(255, 255, 255, .42);
}

.scenario-chip[aria-selected="true"] .scenario-chip__title {
  font-size: 23px;
  font-weight: 760;
}

.scenario-stage {
  --stack-layer-1: rgba(247, 250, 255, .98);
  --stack-layer-2: rgba(239, 244, 255, .94);
  --stack-layer-3: rgba(231, 237, 252, .88);
  position: relative;
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(360px, .82fr) minmax(0, 1.18fr);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transform-origin: center;
  transform-style: preserve-3d;
  will-change: transform, opacity;
  box-shadow:
    8px 8px 0 -1px var(--stack-layer-1),
    16px 16px 0 -2px var(--stack-layer-2),
    24px 24px 0 -3px var(--stack-layer-3),
    0 28px 74px rgba(46, 75, 130, .13);
}

.scenario-stage__copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(28px, 4vw, 54px);
}

.scenario-stage__copy h3 {
  margin: 20px 0 18px;
  font-size: clamp(30px, 3.4vw, 52px);
  line-height: 1;
}

.scenario-stage__copy > div > p {
  color: var(--muted);
}

.deliverable {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.deliverable span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  text-transform: uppercase;
}

.deliverable strong {
  font-size: 18px;
}

.scenario-stage .image-slot {
  min-height: 100%;
  border: 0;
  border-left: 1px solid var(--line);
  border-radius: 0;
}

.process-visual-layout {
  display: grid;
  grid-template-columns: minmax(360px, .8fr) minmax(0, 1.2fr);
  gap: clamp(24px, 5vw, 58px);
  align-items: stretch;
}

.process-media {
  min-height: 560px;
}

.process-layout {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 560px;
  gap: 24px;
  padding: 28px;
  align-items: stretch;
  perspective: 1600px;
}

.process-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  min-width: 0;
  border-top: 0;
  isolation: isolate;
}

.process-rail::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 21px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: rgba(87, 107, 143, .24);
}

.process-step {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  justify-items: center;
  align-content: start;
  min-width: 0;
  min-height: 88px;
  padding: 0 10px 12px;
  overflow: visible;
  color: var(--muted);
  background: transparent;
  border: 0;
  text-align: center;
  cursor: pointer;
}

.process-step[aria-expanded="true"] {
  color: var(--ink);
}

.process-step[aria-expanded="true"] .process-step__number {
  color: #fff;
  background: var(--blue-strong);
  border-color: var(--blue-strong);
  box-shadow: 0 8px 18px rgba(52, 120, 246, .22);
}

.process-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  font-size: 14px;
  font-weight: 780;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--muted);
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(87, 107, 143, .2);
  border-radius: 50%;
  transition: color .24s ease, background-color .24s ease, border-color .24s ease, box-shadow .24s ease;
}

.process-step strong {
  min-height: 38px;
  font-size: 15px;
  line-height: 1.25;
}

/* 横向进度轨道已经表达方向，不再叠加装饰箭头。 */
.process-step__arrow {
  display: none;
}

.process-step[aria-expanded="true"] .process-step__arrow {
  color: var(--blue-strong);
}

/* 流程右侧卡片必须固定宽高；四组文字长短不同，不能让内容反向改变外层尺寸。 */
.process-detail {
  --stack-layer-1: rgba(247, 250, 255, .98);
  --stack-layer-2: rgba(239, 244, 255, .94);
  --stack-layer-3: rgba(231, 237, 252, .88);
  width: calc(100% - 18px);
  height: 388px;
  min-height: 388px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(28px, 3.2vw, 42px);
  color: var(--ink);
  background: rgba(255, 255, 255, .7);
  border: 1px solid rgba(255, 255, 255, .86);
  border-radius: var(--radius);
  box-shadow:
    6px 6px 0 -1px var(--stack-layer-1),
    12px 12px 0 -2px var(--stack-layer-2),
    18px 18px 0 -3px var(--stack-layer-3),
    0 24px 62px rgba(46, 75, 130, .14);
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
  transform-origin: center;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}

.process-detail h3 {
  margin: 14px 0;
  font-size: clamp(30px, 2.8vw, 42px);
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
  line-height: 1;
}

.process-detail__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.process-detail__grid span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  text-transform: uppercase;
}

.standard-experience {
  position: relative;
  display: grid;
  gap: 18px;
  padding: clamp(16px, 2vw, 22px);
  background: rgba(255, 255, 255, .58);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--home-panel-shadow);
}

.standard-experience::before {
  content: "";
  display: none;
  position: absolute;
  inset: 26px -8vw auto;
  height: 220px;
  pointer-events: none;
  background:
    linear-gradient(115deg, rgba(20, 184, 240, .22), transparent 42%),
    linear-gradient(245deg, rgba(139, 92, 246, .18), transparent 48%);
  filter: blur(34px);
  opacity: .85;
}

.standard-controls {
  position: relative;
  z-index: 3;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: -18px;
}

.standard-nav {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: rgba(255, 255, 255, .58);
  border: 1px solid rgba(255, 255, 255, .86);
  border-radius: 999px;
  box-shadow: 0 16px 46px rgba(46, 75, 130, .12);
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
  cursor: pointer;
}

.standard-nav:hover {
  color: var(--surface);
  background: var(--ink);
}

.standard-carousel {
  position: relative;
  z-index: 1;
  height: 224px;
  overflow: hidden;
  perspective: 1200px;
}

.standard-carousel::-webkit-scrollbar {
  display: none;
}

/* data-carousel-position 由 home.js 计算，四个位置共同组成循环舞台。 */
.standard-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 320px;
  height: 176px;
  min-height: 176px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 16px 20px;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, .86);
  text-align: left;
  cursor: pointer;
  opacity: .68;
  transform-origin: center;
  transition:
    left var(--transition-normal) ease,
    opacity var(--transition-normal) ease,
    transform var(--transition-normal) ease,
    color var(--transition-normal) ease,
    border-color var(--transition-normal) ease,
    box-shadow var(--transition-normal) ease,
    background var(--transition-normal) ease;
}

.standard-card:hover {
  border-color: rgba(52, 120, 246, .34);
  background: rgba(255, 255, 255, .62);
}

.standard-card[aria-selected="true"] {
  z-index: 3;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .96), rgba(245, 249, 255, .78)),
    var(--glass);
  border-color: rgba(52, 120, 246, .55);
  box-shadow: 0 38px 92px rgba(52, 120, 246, .28), 0 18px 46px rgba(139, 92, 246, .18), 0 0 0 1px rgba(255, 255, 255, .74) inset;
  opacity: 1;
}

.standard-card[data-carousel-position="previous"] {
  z-index: 1;
  left: 17%;
  transform: translate(-50%, -50%) translateZ(-28px) rotateY(6deg) scale(.9);
}

.standard-card[data-carousel-position="active"] {
  z-index: 3;
  left: 50%;
  opacity: 1;
  transform: translate(-50%, -50%) translateZ(56px) rotateX(2deg) scale(1.04);
}

.standard-card[data-carousel-position="next"] {
  z-index: 1;
  left: 83%;
  transform: translate(-50%, -50%) translateZ(-28px) rotateY(-6deg) scale(.9);
}

.standard-card[data-carousel-position="far"] {
  z-index: 0;
  left: 50%;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) translateZ(-80px) scale(.78);
}

.standard-card__number {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--surface);
  background: var(--brand-gradient);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 780;
}

.standard-card strong {
  display: block;
  margin-top: 16px;
  font-size: 22px;
  line-height: 1.05;
}

.standard-card small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.standard-stage {
  /* 45/55 分栏和完整卡片宽度固定，切换规范时不允许文字多少改变外框。 */
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 45fr) minmax(0, 55fr);
  gap: 0;
  overflow: hidden;
  contain: inline-size;
  background: rgba(255, 255, 255, .58);
}

.standard-stage__copy {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 430px;
  padding: clamp(30px, 5vw, 64px);
}

.standard-stage__copy h3 {
  margin: 18px 0;
  font-size: clamp(34px, 3.5vw, 52px);
  max-width: 100%;
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
  line-height: 1;
}

.standard-stage__copy p {
  color: var(--muted);
}

.standard-stage__copy [data-standard-detail] {
  max-width: 560px;
  padding-top: 20px;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.standard-stage__image {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  min-height: 430px;
  border: 0;
  border-left: 1px solid rgba(255, 255, 255, .86);
  border-radius: 0;
}

@media (min-width: 961px) {
  /* 桌面端明确锁定详情卡高度，四种规范内容都在同一舞台内换行。 */
  .standard-stage {
    height: 580px;
    min-height: 580px;
  }

  .standard-stage__copy,
  .standard-stage__image {
    height: 100%;
    min-height: 0;
  }
}

.about-layout {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: clamp(34px, 7vw, 100px);
  align-items: center;
}

.about-layout > .image-slot {
  align-self: stretch;
}

.about-copy h2 {
  margin-bottom: 24px;
  font-size: clamp(40px, 5.2vw, 68px);
  line-height: 1.02;
}

.about-copy p {
  max-width: 620px;
  color: var(--muted);
}

.team-lines {
  margin: 34px 0;
  border-top: 1px solid var(--line);
}

.team-line {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.team-line span {
  color: var(--blue-strong);
  font-size: 11px;
  font-weight: 780;
}

@media (max-width: 1180px) {
  body.home-page .section-band--chapter .section-title {
    font-size: 42px;
  }

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

  .process-media {
    min-height: 400px;
  }
}

/* 笔记本高度较小时收紧首页首屏，保证主说明和操作按钮无需滚动即可看到。 */
@media (min-width: 961px) and (max-width: 1600px) and (max-height: 900px) {
  .hero {
    min-height: min(760px, calc(100svh - 12px));
    padding: 118px 0 42px;
  }

  .hero h1 {
    margin: 14px 0 8px;
    font-size: clamp(56px, 5.6vw, 74px);
  }

  .hero__statement {
    margin-bottom: 14px;
    font-size: clamp(30px, 3.4vw, 44px);
  }

  .hero__summary {
    margin-bottom: 16px;
  }
}

@media (max-width: 960px) {
  body.home-page .section-band--chapter .section-title {
    white-space: normal;
  }

  .hero__grid,
  .scenario-layout,
  .process-visual-layout,
  .process-layout,
  .boundary-layout,
  .about-layout {
    grid-template-columns: 1fr;
  }

  .hero__side {
    max-width: 720px;
  }

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

  .scenario-stage {
    grid-template-columns: 1fr;
  }

  .scenario-stage .image-slot {
    min-height: 440px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .process-media,
  .boundary-media {
    min-height: 400px;
  }

  /* 窄屏只改为上下排列，详情仍是一张完整卡片，不能把文字和图片拆成两次动画。 */

  .standard-stage {
    grid-template-columns: 1fr;
  }

  .standard-stage__image {
    min-height: 360px;
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, .86);
  }
}

@media (max-width: 760px) {
  .hero {
    min-height: auto;
    align-items: stretch;
    padding: 126px 0 46px;
  }

  .hero__media {
    opacity: .42;
  }

  .home-image--hero {
    object-position: 68% 50%;
  }

  .hero__scene {
    background:
      linear-gradient(rgba(247, 249, 252, .9), rgba(247, 249, 252, .94)),
      linear-gradient(rgba(52, 120, 246, .07) 1px, transparent 1px),
      linear-gradient(90deg, rgba(139, 92, 246, .06) 1px, transparent 1px);
    background-size: auto, 42px 42px, 42px 42px;
  }

  .hero h1 {
    font-size: clamp(48px, 13vw, 64px);
  }

  .hero__statement {
    font-size: clamp(30px, 9vw, 42px);
  }

  .hero__scene::after {
    display: none;
  }

  .hero__side {
    min-height: 320px;
  }

  .hero-tech__caption {
    display: none;
  }

  .hero-tech__core {
    width: 86px;
  }

  .section-head--with-visual {
    grid-template-columns: 1fr;
  }

  body.home-page .section-band--chapter .section-head--stacked {
    display: block;
    margin-bottom: 24px;
    padding-bottom: 22px;
  }

  .service-visual {
    min-height: 260px;
  }

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

  .scenario-track-switch {
    grid-template-columns: 1fr;
  }

  .scenario-track-button {
    min-height: 68px;
  }

  .service-route + .service-route {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .service-route {
    min-height: 310px;
  }

  .scenario-nav {
    position: static;
    min-height: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(180px, 1fr));
    grid-template-rows: auto;
    align-content: start;
    gap: 0;
    overflow-x: auto;
    perspective: none;
    transform-style: flat;
  }

  .scenario-chip {
    position: relative;
    top: auto;
    left: auto;
    width: auto;
    height: auto;
    min-height: 92px;
    border-right: 1px solid var(--line);
    opacity: 1;
    filter: none;
    transform: none !important;
  }

  .scenario-stage {
    min-height: 0;
  }

  .process-detail {
    height: 520px;
    min-height: 520px;
  }

  .process-detail__grid {
    grid-template-columns: 1fr;
  }

  .process-layout {
    padding: 16px;
  }

  .process-media,
  .boundary-media {
    min-height: 360px;
  }

  .standard-carousel {
    height: 240px;
  }

  .standard-card {
    width: min(320px, calc(100% - 104px));
    height: 196px;
    min-height: 196px;
  }

  .standard-card[data-carousel-position="previous"] {
    left: -6%;
    transform: translate(-50%, -50%) translateZ(-28px) scale(.88);
  }

  .standard-card[data-carousel-position="active"] {
    left: 50%;
    transform: translate(-50%, -50%) translateZ(36px) scale(1);
  }

  .standard-card[data-carousel-position="next"] {
    left: 106%;
    transform: translate(-50%, -50%) translateZ(-28px) scale(.88);
  }

  .standard-stage__copy {
    min-height: 360px;
  }

  .standard-stage__image {
    min-height: 340px;
  }
}

.boundary-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: clamp(24px, 5vw, 60px);
  align-items: stretch;
}

.boundary-layout .boundary-list {
  min-height: 480px;
  overflow: hidden;
  background: rgba(255, 255, 255, .72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--home-panel-shadow);
}

/* 左栏是公司实际提供的能力，视觉权重要高于右侧限制项。 */
.boundary-column--primary {
  position: relative;
  background: rgba(224, 242, 254, .74);
}

.boundary-column--primary h3,
.boundary-column--primary li {
  color: var(--ink);
}

.boundary-column--primary li::before {
  content: "";
  width: 10px;
  height: 6px;
  margin: 3px 0 0 3px;
  border-left: 2px solid var(--blue-strong);
  border-bottom: 2px solid var(--blue-strong);
  transform: rotate(-45deg);
}

.boundary-column--limit {
  background: rgba(247, 249, 252, .58);
}

.boundary-column--limit h3,
.boundary-column--limit li {
  color: var(--muted);
}

.boundary-media {
  min-height: 480px;
}

/* 联系区延续统一蓝色，不再额外叠加渐变作为视觉噱头。 */
body.home-page .contact-band {
  padding: clamp(36px, 5vw, 64px);
  box-shadow: 0 18px 52px rgba(17, 24, 39, .16);
}

body.home-page .contact-band::before {
  height: 4px;
  background: var(--blue-strong);
}

body.home-page .button--spectrum {
  background: var(--blue-strong);
}

.standard-card {
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
}

/* 2026-07-24 首屏空间门廊：滚动只读取页面进度，不接管滚轮。 */
.home-journey {
  --journey-build: 0;
  --journey-door: 0;
  --journey-camera: 0;
  --journey-orbit: 0;
  --journey-handoff: 0;
  --journey-gate-open: 0;
  --journey-hero-exit: 0;
  --journey-service: 0;
  --journey-door-angle: 0deg;
  --journey-pointer-x: 0;
  --journey-pointer-y: 0;
  position: relative;
  min-height: 260svh;
  background: var(--canvas);
}

.home-journey__sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 720px;
  overflow: clip;
  isolation: isolate;
  background: var(--canvas);
}

.home-journey .hero {
  position: absolute;
  z-index: 2;
  inset: 0;
  min-height: 100%;
  padding-top: 138px;
  border-bottom: 0;
  opacity: clamp(0, calc(1 - (var(--journey-hero-exit) * 1.08)), 1);
  filter: blur(calc(var(--journey-hero-exit) * 5px));
  transform:
    translate3d(0, calc(var(--journey-hero-exit) * -4vh), 0)
    scale(calc(1 - (var(--journey-hero-exit) * .04)));
  transform-origin: center;
}

.home-journey .hero__media {
  opacity: calc(1 - (var(--journey-hero-exit) * .38));
  transform: scale(calc(1 + (var(--journey-hero-exit) * .08)));
  transform-origin: 72% 48%;
}

.home-journey .hero__media .home-image {
  transform: none;
}

.home-journey .hero__scene {
  background:
    linear-gradient(90deg, rgba(247, 249, 252, .99) 0%, rgba(247, 249, 252, .95) 36%, rgba(242, 246, 251, .66) 60%, rgba(238, 243, 248, .24) 100%),
    linear-gradient(0deg, rgba(247, 249, 252, .94) 0%, rgba(247, 249, 252, .1) 52%, rgba(247, 249, 252, .04) 100%);
  opacity: calc(1 - (var(--journey-hero-exit) * .34));
}

.home-journey .hero__scene::after {
  opacity: calc(1 - var(--journey-hero-exit));
}

.home-journey .hero__copy {
  position: relative;
  z-index: 8;
  opacity: calc(1 - (var(--journey-hero-exit) * 1.12));
  transform:
    translate3d(
      calc(var(--journey-pointer-x) * -5px),
      calc(var(--journey-hero-exit) * -28px),
      0
    )
    scale(calc(1 - (var(--journey-hero-exit) * .035)));
  transform-origin: left center;
}

.home-journey .hero__side {
  min-height: 520px;
}

.journey-stage {
  position: absolute;
  z-index: 6;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  perspective: 1500px;
  opacity: clamp(0, calc(.42 + (var(--journey-build) * .58) - (var(--journey-service) * .94)), 1);
  transform:
    translate3d(0, calc(var(--journey-service) * -5vh), 0)
    scale(calc(1 + (var(--journey-camera) * .28)));
  transform-origin: 68% 50%;
}

.journey-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 69% 49%, rgba(255, 255, 255, .88) 0 4%, rgba(68, 132, 246, .13) 17%, transparent 39%),
    linear-gradient(110deg, transparent 44%, rgba(53, 124, 246, .08) 56%, rgba(139, 92, 246, .09) 75%, transparent 94%);
  opacity: calc(.25 + (var(--journey-build) * .75));
  mix-blend-mode: screen;
}

.journey-stage__depth {
  --hero-tilt-x: 0deg;
  --hero-tilt-y: 0deg;
  --hero-scroll-depth: 0px;
  --hero-core-turn: 0deg;
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transform:
    rotateX(calc(var(--journey-pointer-y) * -2.2deg))
    rotateY(calc(var(--journey-pointer-x) * 2.8deg))
    translateZ(calc(var(--journey-camera) * 160px));
  transform-origin: 68% 50%;
}

.journey-orbit {
  position: absolute;
  left: 69%;
  top: 50%;
  width: min(46vw, 680px);
  aspect-ratio: 1;
  opacity: calc(.16 + (var(--journey-orbit) * .84) - (var(--journey-camera) * .48));
  transform:
    translate(-50%, -50%)
    rotateX(67deg)
    rotateZ(calc(-22deg + (var(--journey-orbit) * 118deg)))
    scale(calc(.54 + (var(--journey-build) * .46)));
  transform-style: preserve-3d;
}

.journey-orbit__ring {
  position: absolute;
  border: 1px solid rgba(64, 126, 236, .34);
  border-radius: 50%;
  box-shadow:
    0 0 36px rgba(52, 120, 246, .12),
    0 0 80px rgba(139, 92, 246, .07) inset;
}

.journey-orbit__ring--outer {
  inset: 0;
}

.journey-orbit__ring--middle {
  inset: 13%;
  border-color: rgba(139, 92, 246, .38);
  transform: translateZ(18px);
}

.journey-orbit__ring--inner {
  inset: 28%;
  border-width: 2px;
  border-color: rgba(68, 132, 246, .46);
  transform: translateZ(36px);
}

.journey-orbit__shard {
  position: absolute;
  width: 12%;
  height: 4%;
  background: linear-gradient(90deg, rgba(52, 120, 246, .06), rgba(52, 120, 246, .78));
  clip-path: polygon(0 50%, 78% 0, 100% 50%, 78% 100%);
  filter: drop-shadow(0 8px 16px rgba(52, 120, 246, .2));
}

.journey-orbit__shard--a {
  left: 4%;
  top: 47%;
}

.journey-orbit__shard--b {
  right: 7%;
  top: 23%;
  background: linear-gradient(90deg, rgba(139, 92, 246, .76), rgba(139, 92, 246, .05));
  transform: rotate(38deg) translateZ(26px);
}

.journey-orbit__shard--c {
  left: 42%;
  bottom: 3%;
  transform: rotate(84deg) translateZ(12px);
}

.journey-orbit__shard--d {
  right: 18%;
  bottom: 15%;
  background: linear-gradient(90deg, rgba(139, 92, 246, .74), rgba(139, 92, 246, .04));
  transform: rotate(132deg) translateZ(30px);
}

/* 门体没有独立边框，只负责在 Hero 与真实 Services 之间形成一条可读的空间缝。 */
.journey-gate {
  position: absolute;
  inset: 4% 2%;
  overflow: hidden;
  perspective: 1600px;
  transform-style: preserve-3d;
  opacity: clamp(0, calc((var(--journey-build) * 1.15) - (var(--journey-service) * .9)), 1);
}

.journey-gate__plane {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50.1%;
  overflow: hidden;
  background:
    linear-gradient(rgba(62, 121, 229, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 121, 229, .07) 1px, transparent 1px),
    linear-gradient(145deg, rgba(255, 255, 255, .72), rgba(221, 235, 252, .18));
  background-size: 42px 42px, 42px 42px, auto;
  box-shadow: 0 28px 90px rgba(39, 82, 157, .12);
  backdrop-filter: blur(18px) saturate(138%);
  -webkit-backdrop-filter: blur(18px) saturate(138%);
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.journey-gate__plane::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 48%, rgba(255, 255, 255, .72), transparent 42%),
    linear-gradient(90deg, transparent, rgba(80, 128, 239, .08), transparent);
}

.journey-gate__plane--left {
  left: 0;
  border-right: 1px solid rgba(78, 131, 240, .32);
  transform-origin: left center;
  transform:
    translate3d(calc(var(--journey-gate-open) * -52vw), 0, calc(var(--journey-gate-open) * -120px))
    rotateY(calc(var(--journey-gate-open) * -18deg));
}

.journey-gate__plane--right {
  right: 0;
  border-left: 1px solid rgba(139, 92, 246, .28);
  transform-origin: right center;
  transform:
    translate3d(calc(var(--journey-gate-open) * 52vw), 0, calc(var(--journey-gate-open) * -120px))
    rotateY(calc(var(--journey-gate-open) * 18deg));
}

.journey-gate__seam {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 3%;
  bottom: 3%;
  width: 1px;
  background: linear-gradient(transparent, rgba(255, 255, 255, .98), rgba(91, 111, 242, .76), transparent);
  box-shadow: 0 0 26px rgba(80, 122, 246, .58);
  opacity: calc(1 - var(--journey-gate-open));
  transform: translateX(-50%);
}

/* Services 是门后真正接管页面的内容，不再复制一份“动画预览”。 */
.journey-services {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: clamp(104px, 11vh, 132px) 0 clamp(26px, 4vh, 48px);
  background:
    radial-gradient(circle at 16% 26%, rgba(37, 158, 224, .09), transparent 32%),
    radial-gradient(circle at 84% 70%, rgba(139, 92, 246, .08), transparent 36%),
    rgba(247, 249, 252, .94);
  opacity: var(--journey-service);
  filter: blur(calc(8px - (var(--journey-service) * 8px)));
  clip-path: inset(
    calc(8% - (var(--journey-service) * 8%))
    calc(4% - (var(--journey-service) * 4%))
    0
  );
  transform:
    translate3d(0, calc(14vh - (var(--journey-service) * 14vh)), 0)
    scale(calc(.88 + (var(--journey-service) * .12)));
  transform-origin: center;
  pointer-events: none;
  will-change: opacity, transform, filter, clip-path;
}

.journey-services[data-services-active="true"] {
  pointer-events: auto;
}

.journey-services__shell {
  width: 100%;
  display: grid;
  gap: clamp(18px, 2.5vh, 28px);
}

body.home-page .journey-services .section-head {
  margin-bottom: 0;
}

.journey-services .section-head--with-visual {
  grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr);
  gap: clamp(28px, 4vw, 62px);
}

.journey-services .service-visual {
  min-height: clamp(180px, 25vh, 280px);
}

.journey-services .section-title {
  max-width: 820px;
  font-size: clamp(36px, 4vw, 58px);
}

.journey-services .section-summary {
  max-width: 760px;
}

.journey-services .service-rail {
  overflow: hidden;
  background: rgba(255, 255, 255, .38);
  border: 1px solid rgba(193, 207, 229, .72);
  box-shadow: 0 24px 74px rgba(55, 86, 140, .08);
  backdrop-filter: blur(18px) saturate(128%);
  -webkit-backdrop-filter: blur(18px) saturate(128%);
}

.journey-services .service-route {
  min-height: clamp(174px, 21vh, 230px);
  padding: clamp(24px, 3vw, 38px);
}

.journey-services .service-route h3 {
  margin: clamp(22px, 3vh, 34px) 0 10px;
  font-size: clamp(32px, 3.7vw, 52px);
}

.journey-stage .hero-tech__caption {
  opacity: calc((1 - var(--journey-camera)) * (.2 + (var(--journey-build) * .8)));
}

.journey-stage .hero-tech__caption--research {
  left: auto;
  right: calc(50% - min(15vw, 230px));
  top: 19%;
}

.journey-stage .hero-tech__caption--engineering {
  right: 8%;
  top: 20%;
}

.journey-stage .hero-tech__caption--output {
  left: 69%;
  bottom: 11%;
}

/* Scenarios 的装饰层不拥有交互，只负责门廊与图形氛围。 */
.scenario-atmosphere {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.section-band#scenarios > .site-shell {
  position: relative;
  z-index: 2;
}

.scenario-atmosphere__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .62;
}

.scenario-portal {
  position: absolute;
  left: 50%;
  top: 56%;
  width: min(78vw, 1120px);
  height: min(62vh, 620px);
  transform: translate(-50%, -50%) perspective(1200px);
  opacity: .2;
}

.scenario-portal__door {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  background: rgba(226, 237, 252, .24);
  border: 1px solid rgba(255, 255, 255, .58);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.scenario-portal__door--left {
  left: 0;
}

.scenario-portal__door--right {
  right: 0;
}

.scenario-portal__seam {
  position: absolute;
  left: 50%;
  top: 8%;
  bottom: 8%;
  width: 1px;
  background: linear-gradient(transparent, rgba(67, 125, 240, .58), transparent);
}

@media (max-width: 1180px) {
  .journey-services .section-head--with-visual {
    grid-template-columns: minmax(260px, .68fr) minmax(0, 1.32fr);
  }

  .journey-orbit {
    left: 74%;
  }

  .journey-stage .hero-tech__caption--output {
    left: 74%;
  }
}

@media (max-width: 960px) {
  .home-journey {
    min-height: auto;
    overflow: clip;
  }

  .home-journey__sticky {
    position: relative;
    height: auto;
    min-height: 780px;
    overflow: visible;
  }

  .home-journey .hero {
    position: relative;
    min-height: 780px;
    opacity: 1;
    filter: none;
    transform: none;
  }

  .home-journey .hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .home-journey .hero__copy {
    max-width: 680px;
  }

  .home-journey .hero__side {
    min-height: 0;
  }

  .journey-stage {
    top: 0;
    right: -16%;
    bottom: auto;
    left: 36%;
    height: 780px;
    opacity: .58;
    transform: none;
  }

  .journey-stage__depth {
    transform: none;
  }

  .journey-orbit {
    left: 66%;
  }

  .journey-gate {
    display: none;
  }

  .journey-stage .hero-tech__caption {
    display: none;
  }

  .journey-services {
    position: relative;
    inset: auto;
    padding: clamp(64px, 8vw, 92px) 0;
    opacity: 1;
    filter: none;
    clip-path: none;
    transform: none;
    pointer-events: auto;
  }

  .journey-services .section-head--with-visual {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .home-journey__sticky,
  .home-journey .hero {
    min-height: 760px;
  }

  .home-journey .hero {
    padding-top: 116px;
    align-items: flex-start;
  }

  .home-journey .hero__copy {
    opacity: 1;
    transform: none;
  }

  .journey-stage {
    top: 0;
    right: -34%;
    bottom: auto;
    left: 17%;
    height: 760px;
    opacity: .36;
  }

  .journey-orbit {
    left: 70%;
    width: 86vw;
  }

  .journey-services {
    padding: 56px 0;
  }

  .journey-services .service-route {
    min-height: 210px;
  }

  .scenario-portal {
    width: calc(100% - 24px);
    height: 52%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-journey {
    min-height: auto;
    --journey-build: 1;
    --journey-door: .72;
    --journey-camera: 0;
    --journey-orbit: .5;
    --journey-handoff: 0;
    --journey-gate-open: 1;
    --journey-hero-exit: 0;
    --journey-service: 1;
    --journey-door-angle: 52deg;
  }

  .home-journey__sticky {
    position: relative;
    height: auto;
    min-height: min(900px, 100svh);
    overflow: visible;
  }

  .home-journey .hero {
    position: relative;
    min-height: min(900px, 100svh);
    opacity: 1;
    filter: none;
    transform: none;
  }

  .journey-stage {
    top: 0;
    bottom: auto;
    height: min(900px, 100svh);
    opacity: .42;
    transform: none;
  }

  .journey-gate {
    display: none;
  }

  .journey-services {
    position: relative;
    inset: auto;
    padding: clamp(64px, 8vw, 96px) 0;
    opacity: 1;
    filter: none;
    clip-path: none;
    transform: none;
    pointer-events: auto;
  }

  .home-journey .hero__copy,
  .home-journey .hero__media,
  .home-journey .hero__scene,
  .journey-stage,
  .journey-stage__depth,
  .journey-orbit,
  .journey-gate,
  .journey-gate__plane,
  .journey-services {
    transition: none !important;
    animation: none !important;
  }
}

/* Scenarios 双房间：门体负责遮住内容提交时点，业务数据仍由 home.js 管理。 */
#scenarios {
  --scenario-door: 0;
  --scenario-orbit: 1;
  --scenario-reveal: 1;
  --scenario-direction: 1;
  --scenario-track-tilt: 7deg;
  --scenario-card-tilt: 9deg;
  --room-primary: 52, 120, 246;
  --room-secondary: 20, 184, 240;
  overflow: clip;
  isolation: isolate;
}

#scenarios[data-track="academic"] {
  --room-primary: 52, 120, 246;
  --room-secondary: 20, 184, 240;
}

#scenarios[data-track="ai"],
#scenarios[data-target-track="ai"] {
  --room-primary: 139, 92, 246;
  --room-secondary: 74, 105, 238;
}

#scenarios .scenario-atmosphere {
  opacity: calc(.24 + (var(--scenario-door) * .54));
  transition: opacity 180ms linear;
}

#scenarios .scenario-portal {
  top: 61%;
  width: min(calc(100% - (var(--page-pad) * 2)), 1240px);
  height: min(66vh, 680px);
  opacity: calc(.12 + (var(--scenario-door) * .78));
  transform:
    translate(-50%, -50%)
    perspective(1300px)
    translateZ(calc(var(--scenario-door) * 90px));
  transform-style: preserve-3d;
}

#scenarios .scenario-portal::before {
  content: "";
  position: absolute;
  inset: -18px;
  border: 1px solid rgba(var(--room-primary), calc(.1 + (var(--scenario-door) * .32)));
  box-shadow:
    0 0 60px rgba(var(--room-primary), calc(var(--scenario-door) * .16)),
    0 0 100px rgba(var(--room-secondary), calc(var(--scenario-door) * .1)) inset;
}

#scenarios .scenario-portal__door {
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .72), rgba(var(--room-primary), .14)),
    rgba(231, 240, 253, .44);
  border-color: rgba(255, 255, 255, .78);
  box-shadow:
    0 28px 84px rgba(43, 72, 125, .17),
    0 1px 0 rgba(255, 255, 255, .86) inset;
  backface-visibility: hidden;
  transform-style: preserve-3d;
}

#scenarios .scenario-portal__door::before,
#scenarios .scenario-portal__door::after {
  content: "";
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(var(--room-primary), .16);
}

#scenarios .scenario-portal__door::after {
  inset: 24%;
  border-color: rgba(var(--room-secondary), .15);
  transform: rotate(45deg);
}

#scenarios .scenario-portal__door--left {
  transform-origin: left center;
  transform: rotateY(calc((1 - var(--scenario-door)) * -76deg));
}

#scenarios .scenario-portal__door--right {
  transform-origin: right center;
  transform: rotateY(calc((1 - var(--scenario-door)) * 76deg));
}

#scenarios .scenario-portal__seam {
  z-index: 4;
  background: linear-gradient(
    transparent,
    rgba(255, 255, 255, .92),
    rgba(var(--room-primary), .8),
    transparent
  );
  box-shadow: 0 0 28px rgba(var(--room-primary), .58);
  opacity: var(--scenario-door);
}

#scenarios .scenario-heading-layout,
#scenarios .scenario-layout {
  transition:
    opacity 360ms cubic-bezier(.2, .72, .24, 1),
    transform 520ms cubic-bezier(.2, .72, .24, 1),
    filter 360ms ease;
}

#scenarios[data-track-transition="charging"] .scenario-heading-layout,
#scenarios[data-track-transition="closing"] .scenario-heading-layout {
  opacity: .78;
  transform: translateY(-4px);
}

#scenarios[data-track-transition="closing"] .scenario-layout,
#scenarios[data-track-transition="swapping"] .scenario-layout {
  opacity: .13;
  filter: blur(3px);
}

#scenarios[data-transition-kind="track"][data-track-transition="closing"] .scenario-layout,
#scenarios[data-transition-kind="track"][data-track-transition="swapping"] .scenario-layout {
  transform: perspective(1500px) translateZ(-100px) rotateY(var(--scenario-track-tilt));
}

#scenarios[data-transition-kind="scenario"][data-track-transition="closing"] .scenario-stage,
#scenarios[data-transition-kind="scenario"][data-track-transition="swapping"] .scenario-stage {
  transform: perspective(1500px) translateZ(-74px) rotateY(var(--scenario-card-tilt));
}

#scenarios[data-track-transition="opening"] .scenario-layout {
  opacity: var(--scenario-reveal);
  transform: perspective(1500px) translateZ(calc((1 - var(--scenario-reveal)) * -86px));
}

#scenarios[data-track-transition="settling"] .scenario-layout {
  opacity: 1;
  transform: none;
}

#scenarios .scenario-chip {
  transition:
    transform 680ms cubic-bezier(.16, .86, .24, 1),
    opacity 520ms cubic-bezier(.16, .86, .24, 1),
    filter 520ms cubic-bezier(.16, .86, .24, 1),
    color 420ms ease,
    background-color 420ms ease,
    border-color 420ms ease,
    box-shadow 520ms ease;
}

#scenarios .scenario-chip:nth-child(2) {
  transition-delay: 60ms;
}

#scenarios .scenario-chip:nth-child(3) {
  transition-delay: 120ms;
}

#scenarios[data-track-transition="closing"] .scenario-chip,
#scenarios[data-track-transition="swapping"] .scenario-chip {
  opacity: .16;
  filter: blur(2px) saturate(.65);
}

#scenarios[data-track-transition="closing"] .scenario-chip[data-carousel-position="previous"],
#scenarios[data-track-transition="swapping"] .scenario-chip[data-carousel-position="previous"] {
  transform: translate(-50%, -50%) translateY(-54px) translateZ(-180px) rotateX(-12deg) rotateZ(-7deg) scale(.76);
}

#scenarios[data-track-transition="closing"] .scenario-chip[data-carousel-position="active"],
#scenarios[data-track-transition="swapping"] .scenario-chip[data-carousel-position="active"] {
  transform: translate(-50%, -50%) translateZ(-120px) rotateY(var(--scenario-card-tilt)) scale(.78);
}

#scenarios[data-track-transition="closing"] .scenario-chip[data-carousel-position="next"],
#scenarios[data-track-transition="swapping"] .scenario-chip[data-carousel-position="next"] {
  transform: translate(-50%, -50%) translateY(54px) translateZ(-180px) rotateX(12deg) rotateZ(7deg) scale(.76);
}

.scenario-media {
  position: relative;
  isolation: isolate;
}

.scenario-media > img {
  position: relative;
  z-index: 1;
  opacity: 1;
  transition: opacity 220ms ease;
}

.scenario-media__fallback {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 12px;
  padding: 40px;
  color: var(--ink);
  text-align: center;
  background:
    linear-gradient(rgba(255, 255, 255, .42), rgba(255, 255, 255, .68)),
    repeating-linear-gradient(90deg, rgba(52, 120, 246, .1) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(0deg, rgba(139, 92, 246, .08) 0 1px, transparent 1px 48px),
    linear-gradient(135deg, rgba(52, 120, 246, .16), rgba(139, 92, 246, .14));
  opacity: 0;
  transition: opacity 220ms ease;
}

.scenario-media__fallback::before {
  content: '';
  width: 72px;
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--active-track) 48%, transparent);
  box-shadow:
    0 0 0 16px color-mix(in srgb, var(--active-track) 8%, transparent),
    0 18px 44px color-mix(in srgb, var(--active-track) 18%, transparent);
  transform: rotate(45deg);
}

.scenario-media__fallback span {
  color: var(--active-track);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.scenario-media__fallback strong {
  max-width: 24ch;
  font-size: clamp(1.5rem, 2.4vw, 2.5rem);
}

.scenario-media[data-image-state="loading"] > img,
.scenario-media[data-image-state="fallback"] > img {
  opacity: 0;
}

.scenario-media[data-image-state="loading"] .scenario-media__fallback,
.scenario-media[data-image-state="fallback"] .scenario-media__fallback {
  opacity: 1;
}

.scenario-media__buffer {
  position: absolute;
  z-index: 2;
  inset: 0;
  background-position: center;
  background-size: cover;
  opacity: 0;
  transform: scale(1.035);
  transition:
    opacity 360ms cubic-bezier(.2, .72, .24, 1),
    transform 680ms cubic-bezier(.2, .72, .24, 1);
}

.scenario-media__buffer[data-ready="true"] {
  opacity: calc(1 - var(--scenario-reveal));
}

#scenarios[data-track-transition="opening"] .scenario-media__buffer[data-ready="true"] {
  opacity: calc(1 - var(--scenario-reveal));
  transform: scale(calc(1.035 - (var(--scenario-reveal) * .035)));
}

.scenario-media__scanner {
  position: absolute;
  z-index: 3;
  top: 0;
  bottom: 0;
  left: calc((var(--scenario-orbit) * 120%) - 20%);
  width: 18%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, .22),
    rgba(var(--room-primary), .22),
    transparent
  );
  opacity: calc(var(--scenario-door) + ((1 - var(--scenario-reveal)) * .45));
  transform: skewX(-12deg);
  pointer-events: none;
}

@media (max-width: 760px) {
  #scenarios .scenario-atmosphere {
    opacity: .18;
  }

  #scenarios .scenario-portal {
    top: 66%;
    height: 54%;
  }

  #scenarios[data-track-transition] .scenario-layout {
    filter: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  #scenarios .scenario-atmosphere {
    display: none;
  }

  #scenarios .scenario-heading-layout,
  #scenarios .scenario-layout,
  #scenarios .scenario-stage,
  #scenarios .scenario-chip,
  #scenarios .scenario-media__buffer,
  #scenarios .scenario-media__scanner {
    transition: none !important;
    animation: none !important;
  }
}