/* ============================================================
   梦之源官网 - detail.css  硬件产品详情页 (DS60系列 超薄壁纸广告机)
   依据 Figma 设计稿「硬件产品-详情」#805:10640 (1920×16362, 深色主题)
   ============================================================ */

/* 深色主题变量 */
body.page-detail {
  --dt-bg: #111214;        /* 画板底色 */
  --dt-sec: #121214;       /* 深色区块 */
  --dt-card: #1c1c1f;      /* 卡片底色 (radius 12/8) */
  --dt-subnav: #2d2f33;    /* 产品咨询 subnav */
  --dt-4k: #1b1c1f;        /* 4K 区块 */
  --dt-text: #ffffff;
  --dt-sub: #9da4b2;
  --dt-primary: #2168E5;
  background: var(--dt-bg);
  color: var(--dt-text);
}
body.page-detail main {
  background: var(--dt-bg);
  /* 顶部补偿 fixed header (64px), subnav 从头部下方开始, 不被遮挡 */
  padding-top: 64px;
}

/* ---------- 详情页顶部导航: 始终白底 (与产品列表页一致) ---------- */
body.page-detail .site-header,
body.page-detail .site-header.is-scrolled {
  background: #fff;
  box-shadow: inset 0 -1px 0 0 #EBEBEB;
}
body.page-detail .site-header .logo-dark { display: block; }
body.page-detail .site-header .logo-light { display: none; }
body.page-detail .site-header .navbar > li > a { color: #2E3033; }
body.page-detail .site-header .navbar > li > a:hover,
body.page-detail .site-header .navbar > li.active > a { color: #2168E5; }
body.page-detail .site-header .vr-pill { border-color: #5C6066; color: #2E3033; }
body.page-detail .site-header:not(.is-scrolled):not(.dd-open) .icon-btn img { filter: none; }
body.page-detail .site-header:not(.is-scrolled):not(.dd-open) .nav-toggle span { background: #2E3033; }

/* 锚点滚动偏移: 顶部导航64 + 产品咨询栏56 = 120px, 区块不被遮挡 */
.dt-size,
.dt-spec,
.dt-download {
  scroll-margin-top: 120px;
}

/* 滚动方向交互: 顶部导航随滚动隐藏/回来 (与产品列表页一致) */
body.page-detail .site-header {
  transition: background .3s var(--ease), box-shadow .3s var(--ease),
              transform .3s var(--ease);
}
/* 向下滚动: 顶部导航上移隐藏, 产品咨询栏吸顶到视口顶部 */
body.page-detail.nav-hide .site-header {
  transform: translateY(-100%);
}
body.page-detail.nav-hide .dt-subnav {
  top: 0;
}

/* ============ 顶部 banner (PC 1920×960 / 移动双图) ============ */
.dt-banner {
  position: relative;
  width: 100%;
  height: 960px;
  overflow: hidden;
  background: #737373;
}
.dt-banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* 移动 banner 图: PC 隐藏 (暂无移动图, 用 PC 图占位) */
.dt-banner-bg-mobile { display: none; }

/* ============ 产品咨询 subnav (sticky, 1920×56) ============ */
.dt-subnav {
  position: sticky;
  top: 64px;
  z-index: 40;
  height: 56px;
  background: var(--dt-subnav);
  transition: top .3s var(--ease);
}
.dt-subnav-inner {
  display: flex;
  align-items: center;
  height: 56px;
}
.dt-subnav-name {
  font-size: 16px;
  font-weight: 666;
  line-height: 28px;
  color: #fff;
}
.dt-subnav-nav {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-left: auto;
}
.dt-subnav-nav a {
  font-size: 14px;
  font-weight: 513;
  line-height: 20px;
  color: #fff;
  transition: color .3s var(--ease);
}
.dt-subnav-nav a:hover { color: #fff; }
.dt-subnav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  margin-left: 24px;
  border-radius: 1000px;
  background: var(--dt-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 489;
  line-height: 20px;
  white-space: nowrap;
  transition: filter .3s var(--ease);
}
.dt-subnav-btn:hover { filter: brightness(1.08); }
.dt-subnav-btn svg { width: 10px; height: 10px; }

/* ============ 渲染视频 (1920×700, 自动循环播放 + 弹窗完整视频) ============ */
.dt-video {
  position: relative;
  width: 100%;
  height: 700px;
  overflow: hidden;
  background: #d9d9d9;
}
.dt-video-inline {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* 视频上轻遮罩, 保证播放按钮可读 */
.dt-video-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .18);
  z-index: 1;
}
.dt-video-btn {
    transform: translate(-50%, -50%);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 0 6px;
    color: #fff;
    font-size: 14px;
    font-weight: 513;
    line-height: 24px;
    white-space: nowrap;
    z-index: 2;
    transition: background .3s var(--ease);
    width: 154px;
    height: 48px;
    left: 50%;
    top: 50%;
    position: absolute;
    background: rgba(255, 255, 255, 0.20);
    border-radius: 100px;
    outline: 1px rgba(255, 255, 255, 0.50) solid;
    outline-offset: -0.50px;
    backdrop-filter: blur(10px);
 }
.dt-video-btn .play-ic {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
}
.dt-video-btn .play-ic svg {     width: 36px;
    height: 36px; }

/* ---------- 渲染视频弹窗 (自适应: 1280×720 基准, 按视口缩放) ---------- */
.dt-video-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.dt-video-modal.open { display: flex; }
.dt-video-modal-mask {
  position: absolute;
  inset: 0;
  background: #171717;               /* 遮罩背景色 */
  cursor: pointer;
}
.dt-video-modal-body {
  position: relative;
  z-index: 2;
  /* 基准 1280×720; 宽度不超过视口, 高度不超过视口(留 48px), 保持 16:9 */
  width: min(1280px, 100%, calc((100vh - 48px) * 16 / 9));
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .5);
}
.dt-video-modal-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* ---------- Plyr 主题定制 (品牌蓝 #2168E5) ---------- */
.dt-video-modal .plyr {
  width: 100%;
  height: 100%;
  --plyr-color-main: #2168E5;
  --plyr-video-control-color: #fff;
  --plyr-video-control-color-hover: #fff;
  --plyr-video-control-background-hover: rgba(33, 104, 229, .85);
  --plyr-menu-background: #1c1c1f;
  --plyr-menu-color: #fff;
  --plyr-menu-item-arrow-color: #9da4b2;
  --plyr-tooltip-background: #1c1c1f;
  --plyr-tooltip-color: #fff;
  --plyr-range-thumb-background: #2168E5;
  --plyr-range-track-height: 4px;
  --plyr-video-progress-buffered-background: rgba(255, 255, 255, .25);
}
.dt-video-modal .plyr__video-wrapper { background: #000; }
/* poster 铺满会挡住播放按钮: 视频就绪后隐藏 poster, 按钮提到最上层 */
.dt-video-modal .plyr__poster { display: none !important; }
.dt-video-modal .plyr__control--overlaid { z-index: 5; }
.dt-video-modal .plyr__control--overlaid {
  background: var(--dt-primary);
  border-radius: 50%;
}
.dt-video-modal .plyr__control--overlaid:hover { background: #1c5ad0; }
.dt-video-modal .plyr__control--overlaid svg { fill: #fff; }
.dt-video-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  background: rgba(0, 0, 0, .55);
  transition: background .3s var(--ease);
}
.dt-video-modal-close:hover { background: rgba(0, 0, 0, .75); }
.dt-video-modal-close svg { width: 20px; height: 20px; }

/* ============================================================
   富文本内容区 .dt-content (editor-style)
   对应「产品亮点 → 灵活配置」, 将来由 WordPress 富文本编辑器输出
   (the_content / Gutenberg 段落·图片·列表·引用 块),
   此套样式对富文本输出结构 (h2/p/figure/img/ul/blockquote)
   直接生效, 无需额外 class。
   ============================================================ */
.dt-content {
  color: var(--dt-text);
}
/* 各区块容器 (设计稿: 产品亮点 y1757/超薄 y2013/一体化 y2890/0贴墙 y4114/散热 y5105/4K y6389/配置 y7787) */
.dt-content-sec {
  padding: 96px 0 72px;
}
/* ---------- 富文本标题层级 ---------- */
/* 区块大标题 64px (设计稿 y 起始, 中心 960) */
.dt-content h2 {
  font-size: 64px;
  font-weight: 749;
  line-height: 72px;
  color: #fff;
  text-align: center;
  letter-spacing: 0;
}
/* 产品亮点标题 36px (设计稿 853:11429 fs36/749) */
.dt-content .dt-sec-highlights h2 {
  font-size: 36px;
  line-height: 40px;
}
/* 灵活配置标题 64px 两段 (320+384, 中心 960) */
.dt-content .dt-sec-config > h2 {
  font-size: 64px;
  line-height: 72px;
}
.dt-content h3 {
  font-size: 40px;
  font-weight: 749;
  line-height: 44px;
  color: #fff;
  margin-top: 48px;
  text-align: center;
}
.dt-content h3:first-child { margin-top: 0; }
/* ---------- 富文本段落 ---------- */
.dt-content p {
  font-size: 16px;
  font-weight: 513;
  line-height: 28px;
  color: #fff;
  margin: 24px auto 0;
  text-align: center;
}
.dt-content p.lead {
  font-size: 20px;
  line-height: 28px;
  font-weight: 513;
}
/* 4K 描述 20px/40lh (设计稿 876:12425) */
.dt-content .dt-sec-4k > p {
  font-size: 20px;
  line-height: 40px;
  max-width: 935px;
}
/* ---------- 富文本图片 (Gutenberg wp-block-image / figure) ---------- */
.dt-content figure {
  margin: 40px auto 0;
  max-width: 1440px;
}
.dt-content figure.aligncenter { text-align: center; }
.dt-content figure img {
  max-width: 100%;
  height: auto;
  display: inline-block;
  border-radius: 12px;
}
/* 整图区块 (切图上传): 全宽展示, 无圆角, 区块内不缩放 */
.dt-content .dt-sec-thin figure,
.dt-content .dt-sec-structure figure,
.dt-content .dt-sec-0wall figure,
.dt-content .dt-sec-heat figure,
.dt-content .dt-sec-4k figure,
.dt-content .dt-sec-config figure {
  max-width: none;
  width: 100%;
  margin: 0 auto;
}
.dt-content .dt-sec-thin figure img,
.dt-content .dt-sec-structure figure img,
.dt-content .dt-sec-0wall figure img,
.dt-content .dt-sec-heat figure img,
.dt-content .dt-sec-4k figure img,
.dt-content .dt-sec-config figure img {
  width: 100%;
  border-radius: 0;
  display: block;
}
/* 标准整图区块: 上下留白与设计稿一致 (区块间距) */
.dt-content .dt-sec-thin { padding: 0; }
.dt-content .dt-sec-structure { padding: 0; }
.dt-content .dt-sec-0wall { padding: 0; }
.dt-content .dt-sec-heat { padding: 0; }
.dt-content .dt-sec-4k { padding: 0; }
.dt-content .dt-sec-config { padding: 0 0 0; }
/* 灵活配置两栏 (07b/07c): 并排 536/874, 垂直居中于行 */
.dt-content .dt-sec-config .dt-config-pair {
  display: grid;
  grid-template-columns: 536px 874px;
  gap: 24px;
  margin: 24px auto;
  width: 1434px;
  max-width: 100%;
  justify-content: center;
  align-items: center;
}
.dt-content .dt-sec-config .dt-config-pair figure {
  margin: 0;
  width: 100%;
}
.dt-content .dt-sec-config .dt-config-pair img {
  width: 100%;
}
/* Gutenberg 图片块容器 (.wp-block-image) */
.dt-content .wp-block-image { margin: 40px auto 0; text-align: center; }
.dt-content .wp-block-image img {
  max-width: 100%;
  height: auto;
  display: inline-block;
  border-radius: 12px;
}
/* 图片说明 (figcaption / wp-caption-text) */
.dt-content figcaption,
.dt-content .wp-caption-text {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 466;
  line-height: 22px;
  color: #9da4b2;
  text-align: center;
}
/* ---------- 整图上传模式 ----------
   若运营方把整个模块切成一张图上传 (不填文字),
   图片按全宽展示, 上下留白, 保持与设计稿一致的呼吸感 */
.dt-content img.alignfull,
.dt-content figure.alignfull,
.dt-content .wp-block-image.alignfull {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  max-width: none;
}
.dt-content figure.alignfull img,
.dt-content .wp-block-image.alignfull img {
  width: 100%;
  border-radius: 0;
}
/* 连续的整图 (纯图片流) 间距收紧, 避免两张图之间过度留白 */
.dt-content figure + figure,
.dt-content .wp-block-image + .wp-block-image,
.dt-content figure + .wp-block-image,
.dt-content .wp-block-image + figure {
  margin-top: 24px;
}
/* 单张整图作为区块时 */
.dt-content > figure:only-child,
.dt-content > .wp-block-image:only-child {
  margin: 0 auto;
}
/* 双列图 (横竖悬挂, 设计稿 652×498 ×2, gap 24) */
.dt-content figure.dt-two-col {
  display: flex;
  gap: 24px;
  max-width: 1440px;
}
.dt-content figure.dt-two-col img {
  width: calc(50% - 12px);
  height: 498px;
  object-fit: cover;
  border-radius: 12px;
}
/* 测出音散热 三图叠放 (设计稿: 散热 934×801 左 / 侧面 511×830 右 / 音波 233×260) */
.dt-content figure.dt-heat-fig {
  position: relative;
  height: 840px;
  max-width: 1440px;
  overflow: hidden;
}
.dt-content figure.dt-heat-fig img {
  position: absolute;
  border-radius: 0;
}
.dt-content figure.dt-heat-fig img:nth-child(1) { /* 散热 */
  left: 240px;
  top: 0;
  width: 934px;
  height: 801px;
  object-fit: cover;
}
.dt-content figure.dt-heat-fig img:nth-child(2) { /* 侧面角度 */
  right: 120px;
  bottom: 0;
  width: 511px;
  height: 830px;
  object-fit: cover;
}
.dt-content figure.dt-heat-fig img:nth-child(3) { /* 音波 */
  right: 390px;
  top: 170px;
  width: 233px;
  height: 260px;
  object-fit: contain;
}
/* ---------- 富文本列表 ---------- */
.dt-content ul {
  list-style: none;
  margin: 56px auto 0;
  padding: 0;
}
/* 产品亮点 5 列 (设计稿: 总 1380, 每项 260, gap 20) */
.dt-content ul.dt-hl-list {
  display: flex;
  max-width: 1380px;
  justify-content: center;
  gap: 20px;
}
.dt-content ul.dt-hl-list li {
  flex: 0 0 260px;
  text-align: center;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.dt-content ul.dt-hl-list li + li { border-left: 1px solid rgba(255, 255, 255, .14); }
.dt-content ul.dt-hl-list li strong {
  font-size: 28px;
  font-weight: 749;
  line-height: 42px;
  color: #fff;
}
.dt-content ul.dt-hl-list li span {
  font-size: 16px;
  font-weight: 513;
  line-height: 26px;
  color: #fff;
}
/* 4K 参数 4 卡 */
.dt-content ul.dt-spec-tags {
  display: flex;
  justify-content: center;
  gap: 24px;
}
.dt-content ul.dt-spec-tags li {
  width: 180px;
  height: 110px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.dt-content ul.dt-spec-tags li strong {
  font-size: 20px;
  font-weight: 700;
  line-height: 24px;
  color: #fff;
}
.dt-content ul.dt-spec-tags li span {
  font-size: 20px;
  font-weight: 513;
  line-height: 30px;
  color: #fff;
}
.dt-content ul.dt-spec-tags li.img { background: none; backdrop-filter: none; }
.dt-content ul.dt-spec-tags li img { width: 94px; height: 62px; object-fit: contain; }
/* 一体化结构 编号标注 (设计稿: 图上叠加 3 个数字, y 3649/3888) */
.dt-content ol.dt-structure-tags {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: -20px auto 0;
  padding: 0;
  max-width: 1035px;
  position: relative;
}
.dt-content ol.dt-structure-tags li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 513;
  line-height: 28px;
  color: #fff;
}
.dt-content ol.dt-structure-tags li span {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dt-primary);
  color: #fff;
  font-size: 28px;
  font-weight: 600;
  line-height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
/* 多档亮度 3 值 (富文本: ul) */
.dt-content ul.dt-brightness-list {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 40px auto 0;
}
.dt-content ul.dt-brightness-list li {
  text-align: center;
  display: flex;
  flex-direction: column;
}
.dt-content ul.dt-brightness-list li strong {
  font-size: 56px;
  font-weight: 800;
  line-height: 64px;
  color: #fff;
}
.dt-content ul.dt-brightness-list li span {
  font-size: 24px;
  font-weight: 500;
  line-height: 32px;
  color: #fff;
}
/* ---------- 富文本引用 (注释 *注) ---------- */
.dt-content blockquote {
  margin: 20px auto 0;
  padding: 0;
  border: 0;
  max-width: 900px;
  text-align: center;
}
.dt-content blockquote p {
  margin: 0;
  font-size: 14px;
  font-weight: 513;
  line-height: 26px;
  color: #9da4b2;
}
/* ---------- 灵活配置 两栏卡片 (设计稿: 阻燃 536×661 + 亮度 874×661, gap 24) ---------- */
.dt-content .dt-config-pair {
  display: grid;
  grid-template-columns: 536px 874px;
  gap: 24px;
  margin: 56px auto 0;   /* 内容列 1440 内水平居中 */
  width: 1434px;         /* 536 + 24 + 874 = 1434, 与设计稿 x 对齐 */
  max-width: 100%;
}
.dt-content .dt-config-item {
  background: var(--dt-card);
  border-radius: 12px;
  padding: 36px 36px 32px;
}
.dt-content .dt-config-item h3 { margin-top: 0; text-align: left; font-size: 28px; line-height: 42px; }
.dt-content .dt-config-item p { text-align: left; margin: 12px 0 0; }
.dt-content .dt-config-item figure { margin: 40px 0 0; }
.dt-content .dt-config-item blockquote { text-align: left; margin: 24px 0 0; }


/* ============ 通用深色区块标题 (64px 大标题) ============ */
.dt-sec-title {
  font-size: 64px;
  font-weight: 749;
  line-height: 72px;
  color: #fff;
  text-align: center;
}

/* ============ 产品外观·产品模型 (1920×1167) ============ */
.dt-model {
  background: var(--dt-card);
  padding: 120px 0 ;
  text-align: center;
}
/* 尺寸选择 tab (设计稿 891:13042: 43"/50"/55"/65", 28px/513, 白线高亮) */
.dt-model-tabs {
    display: flex;
    justify-content: flex-start;
    gap: 100px;
    margin: 64px auto 55px;
    position: relative;
    max-width: 1440px;
    border-bottom: 1px solid hsl(0deg 0% 100% / 10%);
}
.dt-model-tabs a {
    font-size: 28px;
    font-weight: 513;
    line-height: 40px;
    color: rgba(255, 255, 255, .55);
    text-decoration: none;
    transition: color .3s var(--ease);
    padding-bottom: 16px;
}
.dt-model-tabs a:hover,
.dt-model-tabs a.active {
  color: #fff;
}
/* 白线高亮 (设计稿 Rectangle 249: 50×3 在激活 tab 下) */
.dt-model-tabs a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: #fff;
}
.dt-model-tabs a {
  position: relative;
}
/* 模型展示区 (设计稿 891:13005: 1440×680 bg #121214, 右视图 600×474) */
.dt-model-stage {
  position: relative;
  margin: 0 auto;
  max-width: 1440px;
  height: 680px;
  background: #121214;
  overflow: hidden;
}
.dt-model-stage img.dt-model-img {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 474px;
  object-fit: cover;
}
.dt-model-btn {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.20);
    border-radius: 100%;
    border: 1.50px rgba(255, 255, 255, 0.80) solid;
    backdrop-filter: blur(4.17px);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-items: center;
}
.dt-model-btn:hover { filter: brightness(1.08); }
.dt-model-btn svg { width: 48px; height: 48px; color: #fff; }

/* ---- tab 滑动切换 (追加, 不改上方既有样式) ---- */
.dt-model-stage {
  overflow: hidden;               /* 裁切横向滑动 */
}
.dt-model-stage .dt-model-panel {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(60px);
  transition: opacity .45s var(--ease), transform .45s var(--ease), visibility .45s;
}
.dt-model-stage .dt-model-panel.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}
/* 3D iframe 填满面板 */
.dt-model-panel iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #121214;
}
/* 默认面板内图片/按钮保持原有绝对定位 */
.dt-model-panel img.dt-model-img {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 474px;
  object-fit: cover;
}
.dt-model-panel .dt-model-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
/* ---- 3D 按钮点击后: iframe 淡入, 静态图/按钮淡出 (追加, 不改上方既有样式) ---- */
.dt-model-panel .dt-model-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #121214;
  opacity: 0;
  visibility: hidden;
  transition: opacity .45s var(--ease), visibility .45s;
}
.dt-model-panel.dt-model-frame-active .dt-model-frame {
  opacity: 1;
  visibility: visible;
}
.dt-model-panel .dt-model-img,
.dt-model-panel .dt-model-btn {
  transition: opacity .45s var(--ease), visibility .45s;
}
.dt-model-panel.dt-model-frame-active .dt-model-img,
.dt-model-panel.dt-model-frame-active .dt-model-btn {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ============ 产品外观·尺寸选择 (1920×1034) ============ */
.dt-size {
  background: #000;   /* 区块背景色 */
  padding: 120px 0 0;
  text-align: center;
}
/* 尺寸卡轮播 (swiper: 全屏展示, 中间 100% / 两侧 15%, 屏幕图底部对齐) */
.dt-size-swiper {
  margin: 100px auto 0;
  background: #000;
}
.dt-size-card {
  position: relative;
  width: 688px;
  height: 430px;
  background: transparent;
  overflow: hidden;
  cursor: pointer;
  opacity: .2;
  transition: opacity .4s var(--ease);
}
.dt-size-card.swiper-slide-active { opacity: 1; }
.dt-size-screen {
  position: absolute;
  background: no-repeat center / contain;
  pointer-events: none;
}
/* 各尺寸屏幕图底部对齐, 大小体现尺寸差异 */
.dt-size-card[data-size="43"] .dt-size-screen { left: 42.0%; bottom: 0; width: 58.0%; height: 53.5%; }
.dt-size-card[data-size="50"] .dt-size-screen { left: 27.91%; bottom: 0; width: 67.6%; height: 62.1%; }
.dt-size-card[data-size="55"] .dt-size-screen { left: 13.37%; bottom: -1.8%; width: 73.3%; height: 69.5%; }
.dt-size-card[data-size="65"] .dt-size-screen { left: 0; bottom: -3%; width: 80.2%; height: 83.0%; }
/* 参数区: 三组随 tab 切换 (设计稿 220×120, gap 24, 总 1440, 距卡 72, 底部留白 120) */
.dt-size-params {
    position: relative;
    max-width: 1440px;
    padding: 90px 0 0;
    padding-bottom: 120px;
    margin: 0 auto;
    background: #000;
}
.dt-size-param-group {
  display: none;
  justify-content: center;
  gap: 24px;
}
.dt-size-param-group.active {
  display: flex;
  animation: dtSizeFade .45s var(--ease);
}
@keyframes dtSizeFade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.dt-size-param {
    flex: none;
    width: 220px;
    height: 120px;
    border-radius: 8px;
    background: var(--dt-card);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    overflow: hidden;
}
.dt-size-param h4 {
  font-size: 16px;
  font-weight: 666;
  line-height: 28px;
  color: #fff;
}
.dt-size-param p {
  font-size: 14px;
  font-weight: 513;
  line-height: 22px;
  color: #fff;
   text-align: left;
}

/* ============ AI信发 (设计稿 922:13188: 1440×860) ============ */
.dt-ai {
    padding: 65px 0 90px;
}

.dt-ai-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.dt-ai-title {
  font-size: 40px;
  font-weight: 749;
  line-height: 60px;
  color: #fff;
}
.dt-ai-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 16px;
  font-weight: 489;
  line-height: 20px;
  color: #fff;
}
.dt-ai-more svg { width: 20px; height: 20px; }
/* 图区: 浅蓝底 #E8EDFC, 图留边距 (设计稿 1421×609 在 1440×660 内) */
.dt-ai-img {
  margin-top: 56px;
  background: #E8EDFC;
  padding: 26px 0;
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}
.dt-ai-img img {
  display: block;
  width: 98.7%;
  margin: 0 auto;
  height: auto;
}
/* 特性条: 浅灰底 #F0F4FA, 深色文字, 绿勾 (设计稿 1440×84, 直接贴图底) */
.dt-ai-features {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 100px;
  background: #F0F4FA;
  border-bottom-right-radius: 12px;
  border-bottom-left-radius: 12px;
}
.dt-ai-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 513;
  line-height: 36px;
  color: #2E3033;
  white-space: nowrap;
}
.dt-ai-feature svg { width: 24px; height: 24px; flex: none; }
/* 特性间分割线 (设计稿 Vector 61/62: 1px, 32px 高, rgba(0,0,0,.2)) */
.dt-ai-feature + .dt-ai-feature::before {
  content: '';
  flex: none;
  width: 1px;
  height: 32px;
  background: rgba(0, 0, 0, .2);
  margin: 0 85px;
}

/* ============ 应用场景 (设计稿 20260821: 1920×912, 3 图轮播) ============ */
.dt-scene {
  background: var(--dt-card);
  padding: 120px 0 72px;
}
.dt-scene-title {
  font-size: 48px;
  font-weight: 749;
  line-height: 56px;
  color: #fff;
  text-align: center;
}
.dt-scene-swiper {
  position: relative;
  margin-top: 72px;
}
.dt-scene-swiper .swiper-slide {
  width: auto;
  height: auto;
}
.dt-scene-swiper .swiper-slide img {
  display: block;
  width: 833px;
  height: 500px;
  object-fit: cover;
  border-radius: 8px;
}
/* 轮播指示条 (设计稿: 168×48 bg #121214, active 长条 50×6 + 圆点 6×6) */
.dt-scene-swiper .dt-scene-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 44px auto 0;
  width: 168px;
  height: 48px;
  padding: 0 26px;
  background: #121214;
  border-radius: 76px;
  box-sizing: border-box;
}
.dt-scene-dots .swiper-pagination-bullet {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  opacity: 1;
  margin: 0 !important;
}
.dt-scene-dots .swiper-pagination-bullet-active {
  width: 50px;
  height: 6px;
  border-radius: 3px;
}
/* ============ 技术规格 (1920×736) ============ */
.dt-spec {
  background: var(--dt-sec);
  padding: 120px 0 ;
}
.dt-spec-title {
  font-size: 48px;
  font-weight: 749;
  line-height: 56px;
  color: #fff;
}
.dt-spec-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 24px;
  margin-top: 56px;
}
.dt-spec-card {
  min-height: 144px;
  border-radius: 8px;
  background: var(--dt-card);
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.dt-spec-card h4 {
  font-size: 16px;
  font-weight: 666;
  line-height: 28px;
  color: #fff;
}
.dt-spec-card p {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 513;
  line-height: 24px;
  color: #fff;
  white-space: pre-line;
}
/* ============ 支持与下载 (1920×496) ============ */
.dt-download {
    background: var(--dt-sec);
    padding: 0 0 120px;
}
.dt-download-title {
  font-size: 48px;
  font-weight: 749;
  line-height: 56px;
  color: #fff;
}
.dt-download-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.dt-download-card {
  position: relative;
  min-width: 0;
  height: 144px;
  border-radius: 8px;
  background: var(--dt-card);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform .3s var(--ease), background .3s var(--ease);
}
.dt-download-card:hover { transform: translateY(-4px); background: #242429; }
.dt-download-card .dt-dl-ic {
  position: absolute;
  left: 20px;
  bottom: 20px;
  width: 32px;
  height: 32px;
  color: #fff;
}
.dt-download-card h4 {
  font-size: 16px;
  font-weight: 666;
  line-height: 28px;
  color: #fff;
}
.dt-download-card p {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 513;
  line-height: 24px;
  color: rgba(255, 255, 255, .85);
}

/* ============ 页面声明 (1920×120) ============ */
.dt-declare {
  background: var(--dt-card);
  padding: 30px 0;
}
.dt-declare p {
  max-width: 1166px;
  font-size: 14px;
  font-weight: 466;
  line-height: 28px;
  color: #9da4b2;
  white-space: pre-line;
}

/* ============ 响应式 ============ */
@media (max-width: 1440px) {
  /* 场景图: 固定 867px 随容器收窄 (487 文字 + 86 间距), 避免横向溢出 */
  .dt-scene-img { width: calc(100% - 573px); }
}
@media (max-width: 1336px) {
  /* AI信发特性条: 紧凑内边距, 防横向溢出 */
  .dt-ai-features { padding: 24px 32px; }
  .dt-ai-feature { font-size: 16px; }
  .dt-ai-feature + .dt-ai-feature::before { margin: 0 24px; }
  /* 亮点列表: 固定 5×260 改弹性铺满, 防 1336 以下横向溢出 */
  .dt-content ul.dt-hl-list { max-width: 100%; }
  .dt-content ul.dt-hl-list li { flex: 1 1 0; min-width: 140px; }
  /* 尺寸参数 6 卡: 3 列换行 (flex 布局) */
  .dt-size-param-group { flex-wrap: wrap; }
  .dt-download-grid { grid-template-columns: repeat(3, 1fr); }
  .dt-spec-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 1100px) {
  /* 技术规格: 3 列 */
  .dt-spec-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  /* AI信发特性条: 空间不足时横向滚动, 不撑页面 */
  .dt-ai-features { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  /* 平板: 模型展示区按比例收矮, 避免 680px 深色大块 */
  .dt-model-stage { height: 520px; }
  .dt-scene-grid { flex-direction: column; }
  .dt-scene-text { width: 100%; }
  .dt-scene-img { margin-left: 0; margin-top: 32px; width: 100%; }
  /* 富文本内容: 双列/多列收窄为单列 */
  .dt-content figure.dt-two-col { flex-direction: column; }
  .dt-content figure.dt-two-col img { width: 100%; height: auto; }
  .dt-content .dt-config-pair {
    width: 100%;
    grid-template-columns: 1fr;
  }
  /* 散热三图: 铺满等宽等高 (各自 16:9 裁切), 不再叠加 */
  .dt-content figure.dt-heat-fig {
    height: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .dt-content figure.dt-heat-fig img {
    position: static;
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 12px;
  }
  /* 平板: 亮点 5 项一排但弹性收窄, 避免 768 以下溢出 */
  .dt-content ul.dt-hl-list { max-width: 100%; gap: 12px; }
  .dt-content ul.dt-hl-list li { flex: 1 1 0; min-width: 130px; padding: 0 8px; }
  /* 平板/笔记本窄屏: 视频板块保持 16:9 比例, 不裁切 */
  .dt-video {
    height: auto;
    aspect-ratio: 16 / 9;
  }
}
@media (max-width: 767px) {
  /* 移动 banner: 切换为移动端图 (暂无移动图, 先用 PC 图占位) */
  .dt-banner-bg-pc { display: none; }
  .dt-banner-bg-mobile { display: block; }
  .dt-banner { height: 560px; }              /* 移动 banner 竖版比例 */
  /* 移动端 subnav: 与 header 等高吸顶, 链接区横向可滚动, 文字不换行 */
  .dt-subnav { top: 64px; }
  .dt-subnav-inner { padding: 0 16px; }
  .dt-subnav-name { display: none; }   /* 移动端隐藏产品名称, 链接区铺满 */
  .dt-subnav-nav {
    gap: 12px;
    margin-left: 0;
    width: 100%;
    justify-content: space-between;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    white-space: nowrap;
    flex-wrap: nowrap;
  }
  .dt-subnav-nav::-webkit-scrollbar { display: none; }
  .dt-subnav-nav a { flex: none; white-space: nowrap; font-size: 13px; }
  .dt-subnav-btn {
    height: 28px;
    padding: 0 10px;
    margin-left: 8px;
    font-size: 12px;
  }
  /* 移动端视频按钮: 更紧凑 */
  .dt-video-btn {
    gap: 8px;
    height: 40px;
    padding: 0 6px;
    font-size: 13px;
    width: 130px;
  }
  .dt-video-btn .play-ic {
    width: 30px;
    height: 30px;
  }

  .dt-video-btn .play-ic svg {   width: 30px;
    height: 30px; }
  /* 弹窗: 更紧凑边距, 横屏/矮视口也完整可见 */
  .dt-video-modal { padding: 12px; }
  .dt-video-modal-body {
    width: min(1280px, 100%, calc((100vh - 24px) * 16 / 9));
  }
  /* 产品外观: 移动端 tab 条横向滚动, 展示区自适应 */
.dt-model-tabs {
        gap: 56px;
        margin: 40px auto 32px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        white-space: nowrap;
        padding: 0 15px;
}
  .dt-model-tabs::-webkit-scrollbar { display: none; }
  .dt-model-stage { height: 420px; }
  .dt-model-panel img.dt-model-img { width: 100%; height: auto; }
  /* 移动端: 区块大标题收小, 上下内边距收窄 */
     .dt-sec-title {
        font-size: 28px;
        line-height: 1.5;
    }
  .dt-model { padding: 64px 0 56px; }
  .dt-size { padding-top: 64px; }
  /* 富文本内容: 标题/列表/图片 移动端适配 */
  .dt-content-sec { padding: 56px 0 40px; }
  .dt-content h2 { font-size: 36px; line-height: 44px; }
  .dt-content .dt-sec-highlights h2 { font-size: 28px; line-height: 36px; }
  .dt-content .dt-sec-config > h2 { font-size: 36px; line-height: 44px; }
  .dt-content h3 { font-size: 28px; line-height: 36px; }
  .dt-content p { font-size: 14px; line-height: 24px; }
  /* 亮点: 2 列换行, 去掉分隔线 */
  .dt-content ul.dt-hl-list { flex-wrap: wrap; gap: 24px 20px; max-width: 100%; }
  .dt-content ul.dt-hl-list li { flex: 1 1 40%; min-width: 130px; padding: 0 8px; }
  .dt-content ul.dt-hl-list li + li { border-left: none; }
  /* 4K 参数卡: 2×2 */
  .dt-content ul.dt-spec-tags { flex-wrap: wrap; gap: 12px; }
  .dt-content ul.dt-spec-tags li { width: calc(50% - 6px); }
  /* 一体化标注: 换行 */
  .dt-content ol.dt-structure-tags { flex-wrap: wrap; gap: 16px 32px; }
  /* 两栏卡: 单列全宽 */
  .dt-content .dt-config-pair { grid-template-columns: 1fr; gap: 16px; width: 100%; }
  .dt-content .dt-config-item { padding: 24px; }
  /* 亮度值: 缩小 */
  .dt-content ul.dt-brightness-list { gap: 24px; }
  .dt-content ul.dt-brightness-list li strong { font-size: 44px; line-height: 52px; }
  .dt-content ul.dt-brightness-list li span { font-size: 20px; line-height: 26px; }
  /* 整图区块: 全宽, 间距紧凑 */
  .dt-content .dt-sec-thin,
  .dt-content .dt-sec-structure,
  .dt-content .dt-sec-0wall,
  .dt-content .dt-sec-heat,
  .dt-content .dt-sec-4k,
  .dt-content .dt-sec-config { padding: 0; }
  .dt-content .dt-sec-config .dt-config-pair { width: 100%; }
  /* 尺寸卡轮播: 移动端卡接近全宽, 保持比例 */
.dt-size-swiper {
        margin: 0 auto 0;
    }
  .dt-size-card { width: calc(100vw - 32px); height: auto; aspect-ratio: 688 / 430; }
  /* 55"/65" 屏幕底部对齐, 避免超出卡底被裁 */
  .dt-size-card[data-size="55"] .dt-size-screen,
  .dt-size-card[data-size="65"] .dt-size-screen { bottom: 0; }
  /* 移动端屏幕图水平居中 (覆盖桌面错落偏移) */
  .dt-size-card[data-size] .dt-size-screen {
    left: 50%;
    transform: translateX(-50%);
  }
  /* 尺寸参数: 2 列 + 紧凑间距 */
  .dt-size-param-group { flex-wrap: wrap; gap: 12px; }
  .dt-size-param { width: calc(50% - 6px); }
.dt-size-params {
        margin-top: 0;
        padding: 90px 15px 40px;
    }
  .dt-spec-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  /* 规格卡: 长词允许任意位置断行, 防窄屏横向溢出 */
  .dt-spec-card p { overflow-wrap: anywhere; }
  .dt-download-grid { grid-template-columns: repeat(2, 1fr);        margin-top: 30px; }
  /* AI信发: 标题缩小, 了解更多不换行 */
  .dt-ai-title { font-size: 28px; line-height: 40px; }
  .dt-ai-more { flex: none; white-space: nowrap; }
  .dt-ai-features { flex-direction: column; align-items: flex-start; gap: 10px; padding: 20px 16px; }
  .dt-ai-feature + .dt-ai-feature::before { display: none; }
  .dt-ai-img { margin-top: 40px; padding: 12px 0; }
  /* 应用场景: 移动端图自适应, 标题收小 */
  .dt-scene { padding: 64px 0 48px; }
  .dt-scene-title { font-size: 28px; line-height: 36px; }
  .dt-scene-swiper { margin-top: 40px; }
  .dt-scene-swiper .swiper-slide img { width: calc(100vw - 32px); height: auto; aspect-ratio: 833 / 500; }
  .dt-scene-swiper .dt-scene-dots { margin-top: 32px; }
  .dt-model-tabs a {
    font-size: 20px;
  }
  h2.dt-ai-title {
    font-size: 28px;
    text-align: center;
    line-height: 1.5;
}
.dt-ai {
    padding: 40px 0;
}
.dt-ai-feature {
        font-size: 14px;
        line-height: 1;
}
.dt-ai-more {
    display: none;
}
.dt-ai-feature svg {
    width: 14px;
    height: 14px;
}
.dt-spec {
    padding: 64px 0;
}
.dt-spec-title {
    font-size: 28px;
    text-align: center;
    line-height: 1;
}
.dt-download-title {
    font-size: 28px;
}
.dt-download {
    padding-bottom: 64px;
}

}

/* ============================================================
   产品详情下载卡 · 预览/下载 图标按钮排 (靠左, 与下载图标同款描边圈)
   ============================================================ */
.dt-download-acts {
  position: absolute;
  left: 20px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.dt-download-acts .dt-dl-act {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: #fff;
  text-decoration: none;
  transition: color .2s ease;
}
.dt-download-acts .dt-dl-act:hover { color: #7FB3FF; }
.dt-download-acts .dt-dl-act svg { width: 32px; height: 32px; display: block; }
/* 下载图标保持原 32px 静态显示 (覆盖旧 absolute 规则) */
.dt-download-card .dt-dl-ic { position: static; width: 32px; height: 32px; margin: 0; color: inherit; }