/* ============================================================
   小乔Ciao 迎宾接待机器人 产品详情页
   设计基调：Noto Sans SC / 品牌青蓝 #00d2fc（设计稿吸色）
   设计稿基准色：
     品牌青蓝 #00d2fc  胶囊 #2cd8fb  标题墨 #303030
     条目墨 #202020  正文灰 #555  参数名 #999  参数值 #1a1a1a
     交互底渐变 #e4f8fc → #ddf1f5  图注条 rgba(28,185,222,.82)
   ============================================================ */

.ciao-container {
  width: 1400px;
  max-width: 94%;
  margin: 0 auto;
}
.ciao-accent {
  color: #00d2fc;
}

/* ---------- hero ---------- */
.ciao-hero {
  position: relative;
  width: 100%;
  height: 39.1vw; /* 751/1920 全幅等比 */
  max-height: 751px;
  min-height: 420px;
  overflow: hidden;
  background: #e9f6f9;
}
.ciao-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.ciao-hero-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}
.ciao-hero-text {
  display: inline-block; /* 宽度收缩到最宽子级，标题在其内居中 */
}
.ciao-hero-title {
  font-size: 3.6rem;
  font-weight: 700;
  color: #303030;
  letter-spacing: 0.02em;
  text-align: center;
  margin: 0 0 1.55rem;
  line-height: 1.25;
}
.ciao-hero-title .ch {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.6em);
  animation: ciaoCharIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes ciaoCharIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.ciao-hero-sub {
  font-size: 2.8rem;
  font-weight: 700;
  color: #202020;
  letter-spacing: 0.06em;
  margin: 0 0 1.4rem;
  opacity: 0;
  animation: ciaoFadeUp 0.8s ease 0.7s forwards;
}
.ciao-hero-pill {
  display: inline-block;
  font-size: 1.45rem;
  color: #fff;
  letter-spacing: 0.04em;
  padding: 0.2em 1.3em;
  border-radius: 999px;
  background: #2cd8fb;
  margin: 0;
  opacity: 0;
  animation: ciaoFadeUp 0.8s ease 1s forwards;
}
@keyframes ciaoFadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 通用标题 ---------- */
.ciao-h2 {
  font-size: 2.9rem;
  font-weight: 700;
  color: #303030;
  text-align: center;
  letter-spacing: 0.04em;
  line-height: 1.35;
}
.ciao-h2-white {
  color: #fff;
}
.ciao-lead {
  font-size: 1.4rem;
  color: #555;
  text-align: center;
  line-height: 1.55;
  margin: 1.5rem 0 0;
}

/* 滚动浮现（JS 加 .ciao-anim 后启用初始隐藏，避免无 JS 时不可见） */
.ciao-anim .ciao-fade {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.ciao-anim .ciao-fade.inview {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 拟人化交互体验 ---------- */
.ciao-interact {
  position: relative;
  padding: 4.5rem 0 5.7rem;
  overflow: hidden;
  background: linear-gradient(180deg, #e4f8fc 0%, #ddf1f5 100%);
}
.ciao-interact .ciao-h2 {
  font-size: 2.3rem;
}
.ciao-interact-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.ciao-interact-head {
  position: relative;
  z-index: 1;
}
.ciao-interact-body {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 2.7rem;
}
.ciao-interact-robot {
  flex: 0 0 auto;
  margin: 0 1rem;
}
.ciao-interact-robot img {
  display: block;
  width: 242px;
  height: auto;
}
.ciao-anno-left,
.ciao-anno-right {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  min-height: 549px; /* 与机器人同高，便于按设计分布 */
  padding: 0.5rem 0;
}
.ciao-anno {
  display: flex;
  align-items: center;
}
.ciao-anno-left .ciao-anno {
  justify-content: flex-end;
}
/* 标注分布：上部成组 + 底部一项（对齐设计稿） */
.ciao-anno-left .ciao-anno + .ciao-anno {
  margin-top: 5.5rem;
}
.ciao-anno-right .ciao-anno + .ciao-anno {
  margin-top: 5.5rem;
}
.ciao-anno-left .ciao-anno:last-child,
.ciao-anno-right .ciao-anno:last-child {
  margin-top: auto;
  margin-bottom: 0.5rem;
}
.ciao-anno-icon {
  flex: 0 0 auto;
  width: 56px;
  height: 56px;
}
.ciao-anno-text b {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
  color: #202020;
  letter-spacing: 0.02em;
}
.ciao-anno-text span {
  display: block;
  font-size: 1rem;
  color: #555;
  margin-top: 0.35rem;
}
.ciao-anno-left .ciao-anno-text {
  text-align: right;
  margin-right: 1rem;
}
.ciao-anno-right .ciao-anno-text {
  margin-left: 1rem;
}
/* 引线：icon 指向机器人的虚线 + 端点 */
.ciao-anno-line {
  flex: 0 0 auto;
  width: 110px;
  border-top: 2px dashed rgba(0, 190, 230, 0.75);
  position: relative;
}
.ciao-anno-left .ciao-anno-line {
  margin-right: 0.6rem;
}
.ciao-anno-right .ciao-anno-line {
  margin-left: 0.6rem;
}
.ciao-anno-line::after {
  content: "";
  position: absolute;
  top: -5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0ec8ee;
}
.ciao-anno-left .ciao-anno-line::after {
  right: -2px;
}
.ciao-anno-right .ciao-anno-line::after {
  left: -2px;
}

/* ---------- 产品功能 ---------- */
.ciao-funcs {
  background: #00d2fc;
  padding: 3.4rem 0 4.5rem;
}
.ciao-func-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 1rem;
  max-width: 920px;
  margin: 3.4rem auto 0;
}
.ciao-func {
  text-align: center;
}
.ciao-func img {
  width: 66px;
  height: 66px;
  display: inline-block;
}
.ciao-func span {
  display: block;
  font-size: 1.5rem;
  color: #fff;
  letter-spacing: 0.02em;
  margin-top: 0.55rem;
}

/* ---------- 场景通用（全幅底图 + 文字） ---------- */
.ciao-scene {
  position: relative;
  height: 39.1vw; /* 751/1920 全幅等比 */
  max-height: 751px;
  min-height: 430px;
  overflow: hidden;
  background: #eef7fa;
}
.ciao-scene-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}
.ciao-scene-left .ciao-scene-img {
  object-position: 62% center;
}
.ciao-scene-right .ciao-scene-img {
  object-position: 18% center;
}
/* 设计稿中照片→青色过渡明亮清新：叠一层柔和青色提亮渐变带（移动端隐藏） */
.ciao-scene-right::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 25%;
  right: 0;
  z-index: 0;
  background: linear-gradient(90deg, rgba(0, 210, 252, 0) 0%, rgba(0, 210, 252, 0.28) 32%, rgba(0, 210, 252, 0) 68%);
  pointer-events: none;
}
.ciao-scene-inner {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: 7.4rem;
  box-sizing: border-box;
}
.ciao-scene-block {
  max-width: 420px;
}
.ciao-scene-block-right {
  max-width: 370px;
  margin-right: 20%;
  margin-left: auto;
}
.ciao-scene-title {
  font-size: 1.9rem;
  font-weight: 700;
  color: #303030;
  letter-spacing: 0.03em;
  margin: 0 0 2.6rem;
}
.ciao-title-white {
  color: #fff;
}
.ciao-item {
  margin-bottom: 3.2rem;
}
.ciao-item:last-child {
  margin-bottom: 0;
}
.ciao-item b {
  display: block;
  font-size: 1.65rem;
  font-weight: 700;
  color: #202020;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.ciao-item-bar {
  display: inline-block;
  width: 6px;
  height: 1.35em;
  border-radius: 3px;
  background: #00d2fc;
  vertical-align: -0.22em;
  margin-right: 0.7rem;
}
.ciao-item p {
  font-size: 1.15rem;
  color: #555;
  line-height: 1.6;
  margin: 0.7rem 0 0;
  padding-left: 1.1rem;
}
/* 青色底场景（双屏联动 / 礼仪）：文字白色、竖条白色、字号略小 */
.ciao-item-white b {
  color: #fff;
  font-size: 1.5rem;
}
.ciao-item-white .ciao-item-bar {
  background: #fff;
}
.ciao-item-white p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* ---------- 品牌代言人 ---------- */
.ciao-brand .ciao-container {
  padding: 4.5rem 0 4rem;
}

/* ---------- 产品参数 ---------- */
.ciao-params {
  background: #fff;
  padding: 4.5rem 0 6rem;
}
.ciao-params-body {
  display: flex;
  align-items: flex-start;
}
.ciao-params-robot {
  flex: 0 0 auto;
  width: 160px;
  margin: 0 11.5rem 0 4.8rem;
}
.ciao-params-robot img {
  display: block;
  width: 100%;
  height: auto;
}
.ciao-params-main {
  flex: 0 1 auto;
  max-width: 500px;
  min-width: 0;
}
.ciao-params-title {
  font-size: 3.4rem;
  font-weight: 700;
  color: #303030;
  letter-spacing: 0.04em;
  margin: 0;
}
.ciao-params-rule {
  border: 0;
  border-top: 1px solid #dddddd;
  margin: 1.8rem 0 2.6rem;
}
.ciao-params-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 2.5rem;
  row-gap: 1.6rem;
}
.ciao-param-label {
  display: block;
  font-size: 1.3rem;
  color: #999999;
  letter-spacing: 0.03em;
}
.ciao-param-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 500;
  color: #1a1a1a;
  margin-top: 0.8rem;
  letter-spacing: 0.02em;
}

/* ---------- 商业场景 ---------- */
.ciao-biz {
  background: #fff;
  padding: 4.1rem 0 6rem;
}
.ciao-biz-sub {
  font-size: 1.6rem;
  color: #333;
  text-align: center;
  letter-spacing: 0.04em;
  margin: 1.2rem 0 4.4rem;
}
.ciao-biz-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 40px;
  row-gap: 45px;
}
.ciao-biz-item {
  position: relative;
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
}
.ciao-biz-item img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 780 / 560;
  object-fit: cover;
}
.ciao-biz-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 15px;
  font-size: 1.7rem;
  color: #fff;
  text-align: center;
  letter-spacing: 0.03em;
  padding: 1.15rem 1.6rem;
  /* 设计稿图注条：亮青 #00d2fc 约93%不透明，左缘约7%柔和渐隐入图，右缘与图齐平，条下留约15px图边 */
  background: linear-gradient(90deg, rgba(0, 210, 252, 0) 0%, rgba(0, 210, 252, 0.93) 7%, rgba(0, 210, 252, 0.93) 100%);
}
.ciao-biz-cap b {
  font-weight: 700;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width: 1200px) {
  .ciao-hero-title {
    font-size: 3rem;
  }
  .ciao-hero-sub {
    font-size: 2.3rem;
  }
  .ciao-hero-pill {
    font-size: 1.55rem;
  }
  .ciao-interact-robot img {
    width: 210px;
  }
  .ciao-anno-left,
  .ciao-anno-right {
    min-height: 477px;
  }
  .ciao-scene-inner {
    padding-top: 5.5rem;
  }
  .ciao-scene-block-right {
    margin-right: 8%;
  }
  .ciao-params-robot {
    margin: 0 5rem 0 3rem;
  }
  .ciao-params-main {
    max-width: 480px;
  }
}
@media screen and (max-width: 992px) {
  .ciao-h2 {
    font-size: 2.3rem;
  }
  .ciao-interact .ciao-h2 {
    font-size: 1.9rem;
  }
  .ciao-lead {
    font-size: 1.15rem;
  }
  /* 交互区：机器人居上，标注改为两列 */
  .ciao-interact-body {
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 2rem;
  }
  .ciao-interact-robot {
    order: -1;
    flex: 0 0 100%;
    text-align: center;
    margin: 0 0 2rem;
  }
  .ciao-interact-robot img {
    width: 180px;
    margin: 0 auto;
  }
  .ciao-anno-left,
  .ciao-anno-right {
    flex: 1 1 45%;
    min-height: 0;
    padding: 0;
  }
  .ciao-anno {
    margin-bottom: 1.6rem;
  }
  .ciao-anno-left .ciao-anno + .ciao-anno,
  .ciao-anno-right .ciao-anno + .ciao-anno {
    margin-top: 0;
  }
  .ciao-anno-left .ciao-anno:last-child,
  .ciao-anno-right .ciao-anno:last-child {
    margin-top: 0;
  }
  .ciao-anno-line {
    display: none;
  }
  .ciao-anno-left .ciao-anno {
    justify-content: flex-start;
  }
  .ciao-anno-left .ciao-anno-text {
    text-align: left;
    margin-right: 0;
    margin-left: 1rem;
    order: 2;
  }
  .ciao-func-grid {
    grid-template-columns: repeat(4, 1fr);
    row-gap: 2.2rem;
    max-width: 640px;
  }
  .ciao-func span {
    font-size: 1.3rem;
  }
  .ciao-scene {
    min-height: 380px;
  }
  .ciao-scene-inner {
    padding-top: 3.6rem;
  }
  .ciao-scene-title {
    font-size: 1.6rem;
    margin-bottom: 2rem;
  }
  .ciao-item b,
  .ciao-item-white b {
    font-size: 1.25rem;
  }
  .ciao-item p,
  .ciao-item-white p {
    font-size: 0.95rem;
  }
  .ciao-params {
    padding: 3.5rem 0 4.5rem;
  }
  .ciao-params-robot {
    width: 140px;
    margin: 0 4rem 0 1rem;
  }
  .ciao-params-title {
    font-size: 2.6rem;
  }
  .ciao-param-label {
    font-size: 1.05rem;
  }
  .ciao-param-value {
    font-size: 1.35rem;
  }
  .ciao-biz-sub {
    font-size: 1.3rem;
  }
  .ciao-biz-cap {
    font-size: 1.25rem;
  }
}
@media screen and (max-width: 768px) {
  .ciao-hero {
    min-height: 400px;
  }
  .ciao-hero-img {
    object-position: 20% center;
  }
  .ciao-hero-inner {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.72) 0%, rgba(255, 255, 255, 0.35) 55%, rgba(255, 255, 255, 0) 100%);
  }
  .ciao-hero-title {
    font-size: 2.2rem;
    margin-bottom: 1.1rem;
  }
  .ciao-hero-sub {
    font-size: 1.7rem;
    margin-bottom: 1.1rem;
  }
  .ciao-hero-pill {
    font-size: 1.05rem;
  }
  .ciao-interact {
    padding: 3.5rem 0 4rem;
  }
  /* 场景图上的文字卡在移动端改为图下方 */
  .ciao-scene {
    height: auto;
    min-height: 0;
    max-height: none;
    overflow: visible;
    background: #fff;
  }
  .ciao-scene-img {
    position: static;
    height: auto;
    aspect-ratio: 1920 / 751;
    object-position: center;
  }
  .ciao-scene-inner {
    height: auto;
    display: block;
    padding-top: 0;
    padding-bottom: 2.6rem;
  }
  .ciao-scene-block,
  .ciao-scene-block-right {
    max-width: none;
    margin-right: 0;
    margin-left: 0;
    padding-top: 2.2rem;
  }
  /* 图内青色区域（双屏联动/礼仪）在移动端延续青色底 */
  .ciao-scene-right::after {
    display: none;
  }
  .ciao-scene-right .ciao-scene-inner {
    background: #00d2fc;
    max-width: none;
  }
  .ciao-scene-right .ciao-container {
    width: 100%;
    max-width: 100%;
    padding-left: 5%;
    padding-right: 5%;
    box-sizing: border-box;
  }
  .ciao-funcs {
    padding: 3rem 0 3.6rem;
  }
  .ciao-func-grid {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 2.4rem;
  }
  .ciao-brand .ciao-container {
    padding: 3.5rem 0 2.4rem;
  }
  .ciao-params {
    padding: 3.5rem 0 4rem;
  }
  .ciao-params-body {
    flex-direction: column;
    align-items: center;
  }
  .ciao-params-robot {
    width: 140px;
    margin: 0 0 2rem;
  }
  .ciao-params-main {
    max-width: none;
    width: 100%;
  }
  .ciao-biz {
    padding: 0 0 4rem;
  }
  .ciao-biz-grid {
    column-gap: 1.2rem;
    row-gap: 1.8rem;
  }
}
@media screen and (max-width: 480px) {
  .ciao-hero {
    min-height: 340px;
  }
  .ciao-hero-title {
    font-size: 1.75rem;
  }
  .ciao-hero-sub {
    font-size: 1.4rem;
  }
  .ciao-hero-pill {
    font-size: 0.82rem;
    letter-spacing: 0;
  }
  .ciao-h2 {
    font-size: 1.65rem;
  }
  .ciao-interact .ciao-h2 {
    font-size: 1.35rem;
  }
  .ciao-lead {
    font-size: 0.92rem;
    line-height: 1.8;
  }
  .ciao-anno-text b {
    font-size: 1rem;
  }
  .ciao-anno-text span {
    font-size: 0.85rem;
  }
  .ciao-anno-icon {
    width: 46px;
    height: 46px;
  }
  .ciao-func img {
    width: 54px;
    height: 54px;
  }
  .ciao-func span {
    font-size: 1.05rem;
  }
  .ciao-scene-title {
    font-size: 1.35rem;
    margin-bottom: 1.8rem;
  }
  .ciao-item {
    margin-bottom: 2.2rem;
  }
  .ciao-item b,
  .ciao-item-white b {
    font-size: 1.05rem;
  }
  .ciao-item-bar {
    width: 5px;
    margin-right: 0.55rem;
  }
  .ciao-item p,
  .ciao-item-white p {
    font-size: 0.88rem;
    padding-left: 0.9rem;
  }
  .ciao-params-title {
    font-size: 2rem;
  }
  .ciao-params-grid {
    column-gap: 1.4rem;
  }
  .ciao-param-label {
    font-size: 0.85rem;
  }
  .ciao-param-value {
    font-size: 1.02rem;
  }
  .ciao-biz-sub {
    font-size: 1rem;
  }
  .ciao-biz-grid {
    grid-template-columns: 1fr;
    row-gap: 1.4rem;
  }
  .ciao-biz-cap {
    font-size: 1.05rem;
    padding: 0.85rem 1rem;
  }
}

/* 降低动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .ciao-hero-title .ch,
  .ciao-hero-sub,
  .ciao-hero-pill {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .ciao-anim .ciao-fade {
    opacity: 1;
    transform: none;
    transition: none;
  }
}