/* hero-interactive 专用：全部使用 --hero-rpx（容器查询 100cqw/1920），与全站 --rpx/--fpx 隔离 */
.hero-interactive {
  --inner-stretch: 1;
  --inner-width-ratio: 1;
  --design-aspect: 1.5;
  --nav-arrow-mask: url("../images/arr.svg");
  --box-taper-perspective: 620;
  overflow: hidden;
}

/*
 * 视口 1920×1080（16:9），设计稿 1920×1280（1.5:1）：
 * --hero-rpx = 100cqw/1920，与 topic-box 同一套容器宽度比例；上移 crop-top 设计像素，上下等比裁切。
 */
.cover-container {
  position: absolute;
  left: 0;
  top: calc(-1 * var(--hero-crop-top, 100) * var(--hero-rpx));
  width: 100%;
  height: calc(1280 * var(--hero-rpx));
}

/* 设计坐标锚点：stack 对齐 box 左上角 */
.topic-box-stack {
  --box-scale-x: 0.652;
  --box-size-scale: 1;
  --hover-lift: 0px;
  --hover-zoom: 1;
  position: absolute;
  width: calc(250 * var(--box-size-scale) * var(--hero-rpx));
  height: calc(250 * var(--box-size-scale) * var(--hero-rpx));
  pointer-events: none;
}

.topic-box-stack.is-hover {
  --hover-lift: calc(-24 * var(--hero-rpx));
  --hover-zoom: 1.18;
}

/* 外层：保留 skew + scaleX 对齐背景网格 */
.topic-box-shell {
  position: absolute;
  left: 0;
  width: calc(250 * var(--box-size-scale, 1) * var(--hero-rpx));
  height: calc(250 * var(--box-size-scale, 1) * var(--hero-rpx));
  pointer-events: none;
  transform: translateY(var(--hover-lift)) scale(var(--hover-zoom))
    scaleX(var(--box-scale-x)) skewY(var(--box-skew, -18.2deg));
  transform-origin: center center;
  transition: transform var(--hover-move-ms) var(--hover-ease);
}

.topic-box-shell--light-top {
  top: calc((-240 + 18) * var(--box-size-scale, 1) * var(--hero-rpx));
  height: calc(240 * var(--box-size-scale, 1) * var(--hero-rpx));
  z-index: 0;
}

.topic-box-shell--light-bottom {
  top: calc((250 - 18) * var(--box-size-scale, 1) * var(--hero-rpx));
  height: calc(240 * var(--box-size-scale, 1) * var(--hero-rpx));
  z-index: 0;
}

.topic-box-shell--cell {
  top: 0;
  z-index: 3;
}

/* 内层：局部 perspective + rotateY，左下锚定模拟梯形透视 */
.topic-box-face {
  width: 100%;
  height: 100%;
  transform: perspective(calc(var(--box-taper-perspective) * var(--hero-rpx)))
    rotateY(var(--box-taper-y, 5deg));
  transform-origin: 0% 100%;
  transform-style: preserve-3d;
}

.topic-box-hit {
  position: absolute;
  inset: 0;
  z-index: 4;
  overflow: visible;
  cursor: pointer;
  pointer-events: auto;
  /* 热区与视觉层同步切换，避免 transition 期间指针误判 */
  transition: none;
}

.topic-box-hit::before {
  content: '';
  position: absolute;
  left: calc(-20 * var(--hero-rpx));
  right: calc(-20 * var(--hero-rpx));
  top: calc(-56 * var(--hero-rpx));
  bottom: calc(-20 * var(--hero-rpx));
}

.topic-box {
  --topic-nav-unit-scale: 1;
  position: absolute;
  inset: 0;
  z-index: 3;
  overflow: visible;
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: inset 0 0 0 rgba(142, 193, 218, 0);
  transition: box-shadow var(--hover-move-ms) var(--hover-ease);
}

.topic-hover-backdrop {
  position: absolute;
  inset: 0;
  opacity: 1;
  background-color: rgba(255, 255, 255, 0);
  pointer-events: none;
  z-index: 1;
}


.page.settings-overlay-glow .topic-box.is-hover,
.page.settings-overlay-glow .topic-box:focus-within {
  box-shadow: inset 0 0 calc(36 * var(--hero-rpx)) rgba(142, 193, 218, 0.5);
}

.page.settings-overlay-stroke .topic-box.is-hover,
.page.settings-overlay-stroke .topic-box:focus-within {
  box-shadow: inset 0 0 0 calc(1 * var(--hero-rpx)) rgba(142, 193, 218, 0.55);
}

.page.settings-overlay-glow.settings-overlay-stroke .topic-box.is-hover,
.page.settings-overlay-glow.settings-overlay-stroke .topic-box:focus-within {
  box-shadow:
    inset 0 0 calc(36 * var(--hero-rpx)) rgba(142, 193, 218, 0.5),
    inset 0 0 0 calc(1 * var(--hero-rpx)) rgba(142, 193, 218, 0.55);
}


.topic-media-clip {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 1;
  transform-style: preserve-3d;
}

.topic-media-frame {
  --media-hover-x: 0px;
  --media-hover-scale: 1;
  position: absolute;
  left: 50%;
  top: 50%;
  width: calc(var(--media-width, 0) * var(--hero-rpx));
  height: calc(var(--media-height, 0) * var(--hero-rpx));
  transform-origin: center center;
  transform: translate(calc(-50% + var(--media-hover-x)), -50%)
    skewY(calc(-1 * var(--media-skew, var(--box-skew, -18.2deg))))
    scale(calc(var(--media-hover-scale) / var(--box-scale-x)), var(--media-hover-scale));
}

.topic-media-frame > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.topic-light-host {
  position: absolute;
  inset: 0;
  pointer-events: none;
}


.topic-light-host::before,
.topic-light-host::after {
  content: '';
  position: absolute;
  top: calc(10 * var(--hero-rpx));
  bottom: calc(10 * var(--hero-rpx));
  width: calc(2 * var(--hero-rpx));
  pointer-events: none;
  opacity: 0;
  z-index: 2;
  background: linear-gradient(
    to bottom,
    rgba(210, 236, 252, 0) 0%,
    rgba(210, 236, 252, 0.96) 24%,
    rgba(176, 220, 252, 0.78) 52%,
    rgba(148, 196, 252, 0.16) 100%
  );
  box-shadow:
    0 0 calc(8 * var(--hero-rpx)) rgba(210, 236, 252, 0.75),
    0 0 calc(3 * var(--hero-rpx)) rgba(210, 236, 252, 0.95);
  transition: opacity var(--hover-move-ms) var(--hover-ease);
}

.topic-light-host::before {
  left: calc(3 * var(--hero-rpx));
}

.topic-light-host::after {
  right: calc(3 * var(--hero-rpx));
}

.page.settings-effect-cell_appear_effect .topic-light-host.is-hover::before,
.page.settings-effect-cell_appear_effect .topic-light-host.is-hover::after {
  opacity: 1;
}


.topic-light-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.topic-light-canvas--cell {
  mix-blend-mode: screen;
}

.page.settings-effect-cell_appear_effect .topic-light-host--top .topic-light-canvas--cell {
  -webkit-mask-image: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.75) 100%
  );
  mask-image: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.75) 100%
  );
}

.page.settings-effect-cell_appear_effect .topic-light-host--bottom .topic-light-canvas--cell {
  -webkit-mask-image: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0) 100%
  );
  mask-image: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0) 100%
  );
}

.topic-desc-wrap {
  position: absolute;
  left: calc(32 * var(--hero-rpx));
  right: calc(32 * var(--hero-rpx));
  top: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%);
}

.topic-inner-body {
  width: calc(100% * var(--inner-width-ratio));
  transform: scaleX(var(--inner-stretch));
  transform-origin: left center;
}

.topic-desc {
  width: 100%;
  margin: 0;
  font-size: calc(24 * var(--hero-rpx));
  font-weight: 500;
  line-height: 1.45;
  color: #183974;
  text-align: left;
}

.topic-desc-word {
  display: inline-block;
}

.topic-desc-line {
  display: block;
  line-height: inherit;
  will-change: transform, opacity;
}

.topic-desc-line-mask {
  display: block;
  overflow: clip;
}

.topic-title {
  position: absolute;
  left: 40%;
  bottom: calc(100% + 24 * var(--hero-rpx));
  transform: translateX(calc(-50% - 8 * var(--hero-rpx)));
  font-size: calc(28 * var(--hero-rpx));
  font-weight: 700;
  line-height: 1;
  color: #183974;
  white-space: nowrap;
  text-align: center;
  z-index: 4;
}

.topic-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  background: linear-gradient(
    135deg,
    rgba(142, 193, 218, 0.42) 0%,
    rgba(142, 193, 218, 0.14) 42%,
    rgba(142, 193, 218, 0) 72%
  );
}

.topic-ripple {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.topic-ripple-wave {
  position: absolute;
  inset: 0;
  box-sizing: border-box;
  border: calc(2 * var(--hero-rpx)) solid rgba(142, 193, 218, 0.55);
  transform-origin: center center;
  transform: scale(1);
  opacity: 0.85;
  pointer-events: none;
  will-change: transform, opacity;
}

.topic-nav-wrap {
  position: absolute;
  left: calc(14 * var(--hero-rpx));
  right: calc(14 * var(--hero-rpx));
  top: 50%;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%);
}

.page.settings-content-nav .topic-box.is-hover {
  pointer-events: auto;
}

.page.settings-content-nav.settings-nav-bg-color .topic-nav-wrap {
  mix-blend-mode: normal;
  isolation: isolate;
}

.page.settings-content-nav.settings-nav-bg-color .topic-nav-item {
  border-radius: calc(6 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  transition: background-color 0.26s cubic-bezier(0.22, 1, 0.36, 1);
}

.page.settings-content-nav.settings-nav-bg-color .topic-nav-item:hover,
.page.settings-content-nav.settings-nav-bg-color .topic-nav-item:focus-visible {
  background-color: rgba(142, 193, 218, 0.22);
}

.page.settings-content-nav.settings-nav-bg-slide .topic-nav-highlight {
  display: block;
}

.page.settings-content-nav.settings-nav-bg-color .topic-nav-highlight,
.page.settings-content-desc .topic-nav-highlight {
  display: none;
}

.page.settings-content-desc .topic-nav-wrap {
  visibility: hidden;
}

.page.settings-content-nav .topic-desc-wrap {
  visibility: hidden;
}

.topic-nav {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
}

.topic-nav-highlight {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  box-sizing: border-box;
  border-radius: calc(6 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  background-color: rgba(142, 193, 218, 0.22);
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  will-change: top, left, width, height, opacity;
}

.topic-nav-line-mask {
  display: block;
  overflow: clip;
}

.topic-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: calc(10 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  width: 100%;
  padding: calc(7 * var(--topic-nav-unit-scale) * var(--hero-rpx))
    calc(18 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  background-color: transparent;
  font-size: calc(22 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  font-weight: 600;
  line-height: 1.35;
  color: #183974;
  text-decoration: none;
  letter-spacing: 0.02em;
  will-change: transform, opacity;
}

.topic-nav-item__text {
  flex: 1;
  min-width: 0;
  transition: color 0.2s;
}

.topic-nav-item__arrow {
  flex-shrink: 0;
  width: calc(13 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  height: calc(13 * var(--topic-nav-unit-scale) * var(--hero-rpx));
  background-color: #183974;
  opacity: 0.72;
  -webkit-mask-image: var(--nav-arrow-mask);
  mask-image: var(--nav-arrow-mask);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

.topic-nav-item:hover .topic-nav-item__text,
.topic-nav-item:focus-visible .topic-nav-item__text {
  color: var(--brand-red);
}

.topic-nav-item:hover .topic-nav-item__arrow,
.topic-nav-item:focus-visible .topic-nav-item__arrow {
  background-color: var(--brand-red);
  opacity: 1;
}

/* 我们：导航略大、横向略拉宽 */
.topic-box[data-beam-id="5"] .topic-inner-body {
  transform: scaleX(calc(var(--inner-stretch) * 1.06));
  width: calc(100% * var(--inner-width-ratio) / 1.06);
}

.topic-box[data-beam-id="5"] .topic-nav-item {
  font-size: calc(25 * var(--topic-nav-unit-scale) * var(--hero-rpx));
}