/* ============================================================
 * 江行智能官网 (jxzn) — 公共样式（header + footer + 基础）
 * 设计稿基准：1920px PC 端
 * 字体：思源黑体 → 系统中文字体回退
 * ============================================================ */

/* CSS 变量（设计 token） */
:root {
  /* 颜色 */
  --jxzn-bg: #000;
  --jxzn-text: #FFFFFF;
  --jxzn-text-dim: rgba(255, 255, 255, 0.38);
  --jxzn-text-gray: #888;
  --jxzn-text-hover: rgba(255, 255, 255, 0.85);

  /* 字体 */
  --jxzn-font: "Source Han Sans CN", "Source Han Sans SC", "PingFang SC",
               "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont,
               "Helvetica Neue", Arial, sans-serif;

  /* 排版 */
  --jxzn-fs-nav: 20px;
  --jxzn-fs-footer-title: 20px;
  --jxzn-fs-footer-item: 18px;

  /* 布局 */
  --jxzn-max-w: 1920px;
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--jxzn-font);
  background: var(--jxzn-bg);
  color: var(--jxzn-text);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul, li {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ============================================================
 * 全屏分段布局（最简单、最自然的滚动）
 * 每屏 100vh，自然往下流，没有 snap、没有 sticky 层叠
 * ============================================================ */

.jxzn-screen {
  position: relative;
  width: 100%;
  height: 100vh;          /* 改为 height（不是 min-height），让子元素 100% 能解析 */
  overflow: hidden;
}

.jxzn-screen__inner {
  position: relative;
  width: 100%;
  height: 100%;
}

/* 首屏 hero */
.jxzn-screen--hero {
  background: #000;       /* 兜底色，图片/视频加载前显示 */
  color: #fff;
}

/* hero 背景层（支持 <img> 或 <video> 切换） */
.jxzn-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.jxzn-hero__media img,
.jxzn-hero__media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;          /* 4K 图，铺满裁切（B 方案）*/
  object-position: center;
  user-select: none;
  pointer-events: none;
}

/* 文字内容压在背景之上 */
.jxzn-hero__content {
  z-index: 2;
}

/* hero 内容（按 Figma 1920×1080 精确定位）
 * 标题盒：左 176 / 上 320 / 宽 667 / 高 198
 * 徽章盒：左 184 / 上 542 / 宽 326.88 / 高 37.51
 *        （= 标题 bottom 518 + 24）
 */
.jxzn-hero__content {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.jxzn-hero__content > * { pointer-events: auto; }

.jxzn-hero__title {
  position: absolute;
  left: 9.1667vw;                           /* 176/1920 */
  top: 29.6296vh;                           /* 320/1080 */
  width: 34.7396vw;                         /* 667/1920 */
  /* height 198 由 2 行 × line-height 99 撑出 */
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(40px, 3.5417vw, 68px);   /* 68/1920 */
  font-weight: 100;                         /* Thin（最细） */
  line-height: 1.4559;                      /* 99/68 */
  letter-spacing: 0.1em;                    /* 10% */
  color: #FFFFFF;
  margin: 0;
  white-space: nowrap;                      /* 强制不换行 */
}
.jxzn-hero__title-em {
  font-weight: 700;                         /* Bold「物理AI」 */
}
.jxzn-hero__title-line2 {
  display: block;                           /* 单独一行 */
  white-space: nowrap;
}

.jxzn-hero__badge {
  position: absolute;
  left: 9.5833vw;                           /* 184/1920 */
  top: 50.1852vh;                           /* 542/1080 */
  width: 17.025vw;                          /* 326.88/1920 */
  height: 3.473vh;                          /* 37.51/1080 */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;                               /* W/H 已固定，padding 数据仅用于文字居中 */
  border: 0.85px solid #FFFFFF;
  border-radius: 999px;                     /* corner-radius 170.11 ≈ 完全胶囊 */
  background: transparent;
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(13px, 1.1161vw, 21.43px);/* 21.43/1920 */
  font-weight: 400;                         /* Normal */
  letter-spacing: 0.1em;                    /* 10% */
  color: #FFFFFF;
  white-space: nowrap;
  box-sizing: border-box;
}

/* ============================================================
 * Screen 02：物理AI 重塑工业现场（视频）
 * Figma node 5:846
 * ============================================================ */
.jxzn-screen--video {
  background: #000;
  color: #fff;
}

.jxzn-video__player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
  z-index: 1;
}

/* 标题盒：左 715 / 上 81 / 宽 491 / 高 99 */
.jxzn-video__title {
  position: absolute;
  left: 37.2396vw;              /* 715/1920 */
  top: 7.5vh;                   /* 81/1080 */
  width: 25.5729vw;             /* 491/1920 */
  /* height 99 = line-height */
  margin: 0;
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(28px, 2.7083vw, 52px);   /* 52/1920 */
  font-weight: 100;             /* Thin（非加粗） */
  line-height: 1.9038;          /* 99/52 */
  letter-spacing: 0;            /* 0% */
  color: #FFFFFF;
  white-space: nowrap;
  z-index: 3;
  text-align: center;
}
.jxzn-video__title strong {
  font-weight: 700;             /* Bold「物理AI」 */
}

/* 播放按钮：左 910 / 上 452 / 100×100 */
.jxzn-video__btn {
  position: absolute;
  left: 47.3958vw;              /* 910/1920 */
  top: 41.8519vh;               /* 452/1080 */
  width: 5.2083vw;              /* 100/1920 */
  height: 5.2083vw;             /* 保持正方形 */
  max-width: 100px;
  max-height: 100px;
  margin: 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  cursor: pointer;
  z-index: 4;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  outline: none;
}
.jxzn-video__btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: #fff;
  transform: scale(1.08);
}
.jxzn-video__btn svg {
  width: 36%;
  height: 36%;
  fill: #fff;
  margin-left: 6%;              /* 三角形视觉居中微调 */
  pointer-events: none;
}
.jxzn-video__btn.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.5);
}

/* ============================================================
 * Screen 03：物理AI 具身操作
 * Figma node 81:1816
 * ============================================================ */
.jxzn-screen--op {
  background: #0e1a2a;
  color: #fff;
}
.jxzn-op__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  pointer-events: none;
}
.jxzn-op__bg::after {
  /* 顶部渐黑遮罩，让标题更清晰 */
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 30%, transparent 70%, rgba(0,0,0,0.4));
}

/* 标题：和 screen 2 同款字体规格，top 81 横向居中 */
.jxzn-op__title {
  position: absolute;
  top: 7.5vh;                  /* 81/1080 */
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(28px, 2.7083vw, 52px);  /* 52/1920 */
  font-weight: 100;
  line-height: 1.9038;          /* 99/52 */
  letter-spacing: 0;
  color: #FFFFFF;
  white-space: nowrap;
  z-index: 5;
}
.jxzn-op__title strong {
  font-weight: 700;             /* Bold「物理AI」 */
}

/* 3D 旋转图标：相对屏幕，右上角 距右 470 / 距上 336 / 50×38.88 */
.jxzn-op__rotate-icon {
  position: absolute;
  right: 24.4792vw;             /* 470/1920 */
  top: 31.1111vh;               /* 336/1080 */
  width: 2.6042vw;              /* 50/1920 */
  height: 3.6vh;                /* 38.88/1080 */
  z-index: 6;
  pointer-events: none;
  user-select: none;
}

/* === 中央展示区 1052×430 居中 === */
.jxzn-op__showcase {
  position: absolute;
  top: 30.0926vh;               /* (1080-430)/2 = 325 → 325/1080 */
  left: 50%;
  transform: translateX(-50%);
  width: 54.7917vw;             /* 1052/1920 */
  height: 39.8148vh;            /* 430/1080 */
  z-index: 4;
}

/* 左块 231×409：垂直居中（top = (430-409)/2 = 10.5px → 0.972vh） */
.jxzn-op__hw {
  position: absolute;
  left: 0;
  top: 0.9722vh;                /* 10.5/1080 */
  width: 12.0313vw;             /* 231/1920 */
  height: 37.8704vh;            /* 409/1080 */
}
/* 上图 230.37×78.31：距顶 8.62 */
.jxzn-op__hw-top {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0.7981vh;                /* 8.62/1080 */
  width: 11.9984vw;             /* 230.37/1920 */
  height: 7.2509vh;             /* 78.31/1080 */
  object-fit: contain;
}
/* 下图 251×138：距底 25（注意 251 > 231，会向左右溢出 10px 各边） */
.jxzn-op__hw-bot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 18.5120vh;               /* 199.93/1080 */
  width: 13.0729vw;             /* 251/1920 */
  height: 12.7778vh;            /* 138/1080 */
  object-fit: contain;
}

/* 文字标签：Source Han Sans SC / 22 / Regular / 字距 0
   text1「域控硬件示意图」在上图下方 25px → top 111.93
   text2「大脑硬件示意图」在下图上方（上下两 text 间距 66） → top 199 */
.jxzn-op__hw-text {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(14px, 1.1458vw, 22px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  color: #FFFFFF;
  white-space: nowrap;
}
.jxzn-op__hw-text--1 { top: 10.3639vh; }    /* 111.93/1080 */
.jxzn-op__hw-text--2 { top: 33.5120vh; }    /* 361.93/1080（下图底 + 25） */

/* 中线：垂直 240.5×2px #929292，左 231+109=340，垂直居中 */
.jxzn-op__divider {
  position: absolute;
  left: 17.7083vw;              /* 340/1920 */
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 22.2685vh;             /* 240.5/1080 */
  background: #929292;
  border: 0;
}

/* 右块 642×430：左 340+2+117=459，机械狗居中（上下 padding 40，左右 58） */
.jxzn-op__robot {
  position: absolute;
  left: 23.9063vw;              /* 459/1920 */
  top: 0;
  width: 33.4375vw;             /* 642/1920 */
  height: 39.8148vh;            /* 430/1080 */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3.7037vh 3.0208vw;   /* 上下 40/1080, 左右 58/1920 */
  box-sizing: border-box;
}
.jxzn-op__robot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.4s, transform 0.5s ease;
}

/* === 底部 Tabs：showcase 底 +103px === */
/* showcase 底 y = 325 + 430 = 755；tabs top = 755 + 103 = 858 → 79.4444vh */
.jxzn-op__tabs {
  position: absolute;
  top: 79.4444vh;               /* 858/1080 */
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 26px;
  z-index: 5;
  white-space: nowrap;
}
.jxzn-op__tab {
  height: 4.8vh;
  min-height: 44px;
  max-height: 60px;
  padding: 0 clamp(20px, 2vw, 40px);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: clamp(14px, 1.1vw, 20px);
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  background: rgba(58, 58, 58, 0.85);
  color: rgba(255,255,255,0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.jxzn-op__tab:hover {
  color: rgba(255,255,255,0.9);
  background: rgba(80, 80, 80, 0.85);
}
.jxzn-op__tab.is-active {
  background: #fff;
  color: #000;
  font-weight: 700;
  border-color: #fff;
}

/* ============================================================
 * Screen 04：驱动变革的 物理AI核心引擎
 * Figma node 8:979
 * 屏幕 1920×1080
 * ============================================================ */
.jxzn-screen--engine {
  background: #000;
  color: #fff;
}
.jxzn-engine__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  user-select: none;
  pointer-events: none;
}

/* 主标题：top 81 / 横向居中 / 52px / Thin / 「物理AI核心引擎」加粗 */
.jxzn-engine__title {
  position: absolute;
  top: 7.5vh;                   /* 81/1080 */
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(28px, 2.7083vw, 52px);  /* 52/1920 */
  font-weight: 100;
  line-height: 1.9038;          /* 99/52 */
  letter-spacing: 0;
  color: #FFFFFF;
  white-space: nowrap;
  z-index: 5;
}
.jxzn-engine__title strong {
  font-weight: 700;             /* 「物理AI核心引擎」加粗 */
}

/* 副标题：30px / 主标题视觉底 + 30px 间距
   主标题字体 52 行高 99，半行距 (99-52)/2=23.5
   主标题视觉底 = 81 + 23.5 + 52 = 156.5
   副标题 top = 156.5 + 30 = 186.5 */
.jxzn-engine__subtitle {
  position: absolute;
  top: 17.2685vh;               /* 186.5/1080 */
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(16px, 1.5625vw, 30px);  /* 30/1920 */
  font-weight: 100;
  line-height: 1;
  letter-spacing: 0;
  color: #FFFFFF;
  white-space: nowrap;
  z-index: 5;
}

/* 主视觉 917×611：top 333 / left 513（right 490 / bottom 136）*/
.jxzn-engine__main {
  position: absolute;
  top: 30.8333vh;               /* 333/1080 */
  left: 26.7188vw;              /* 513/1920 */
  width: 47.7604vw;             /* 917/1920 */
  height: 56.5741vh;            /* 611/1080 */
  object-fit: contain;
  z-index: 4;
  user-select: none;
  pointer-events: none;
}

/* 左侧列表：x 371 / y 388 / 137.5×244 / 4 项 / 间距 36 / 整体居中 */
.jxzn-engine__list {
  position: absolute;
  left: 19.3229vw;              /* 371/1920 */
  top: 35.9259vh;               /* 388/1080 */
  width: 7.1615vw;              /* 137.5/1920 */
  height: 22.5926vh;            /* 244/1080 */
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;  /* 4 项均匀分布占满 244 */
  align-items: center;             /* 整体居中 */
  z-index: 5;
}
.jxzn-engine__list li {
  display: flex;
  align-items: center;
  gap: 2px;                        /* icon 距文字 2px */
  font-family: "Source Han Sans SC", var(--jxzn-font);
  font-size: clamp(14px, 1.25vw, 24px);   /* 24/1920 */
  font-weight: 400;
  line-height: 1;
  color: #FFFFFF;
  white-space: nowrap;
}
.jxzn-engine__list img {
  width: 0.7813vw;                 /* 15/1920 */
  height: 1.2963vh;                /* 14/1080 */
  max-width: 15px;
  max-height: 14px;
  object-fit: contain;
  flex-shrink: 0;
}

/* ============================================================
 * Header — 全站顶部导航（位置：覆盖在 hero 上，半透明）
 * ============================================================ */

.jxzn-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 90px;
  padding: 21px 192px;
  background: transparent;
  /* transform + background 一起平滑过渡 */
  transition:
    background 0.3s ease,
    -webkit-backdrop-filter 0.3s ease,
    backdrop-filter 0.3s ease,
    transform 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
  transform: translateY(0);
}

/* 滚出首屏后：实底 + 模糊 */
.jxzn-header.is-scrolled {
  background: rgba(0, 0, 0, 0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

/* 隐藏（往下滚动时）：向上滑出去 */
.jxzn-header.is-hidden {
  transform: translateY(-110%);
}

.jxzn-header__logo {
  flex-shrink: 0;
  width: 137px;
  height: 38px;
}
.jxzn-header__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.jxzn-nav {
  display: flex;
  align-items: center;
  gap: 60px;
  flex-shrink: 0;
}

.jxzn-nav__item {
  font-size: var(--jxzn-fs-nav);
  line-height: 32px;
  color: var(--jxzn-text-dim);
  font-weight: 400;
  white-space: nowrap;
  cursor: pointer;
}

.jxzn-nav__item:hover {
  color: var(--jxzn-text-hover);
}

.jxzn-nav__item.is-active {
  color: var(--jxzn-text);
  font-weight: 700;
}

/* ============================================================
 * Footer
 * ============================================================ */

.jxzn-footer {
  background: var(--jxzn-bg);
  padding: 80px 88px 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 98px;
}

.jxzn-footer__cols {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}

.jxzn-footer__col {
  display: flex;
  flex-direction: column;
  gap: 37px;
  align-items: flex-start;
}

.jxzn-footer__col h3 {
  font-size: var(--jxzn-fs-footer-title);
  line-height: 32px;
  font-weight: 700;
  color: var(--jxzn-text);
  white-space: nowrap;
}

.jxzn-footer__col ul {
  display: flex;
  flex-direction: column;
}

.jxzn-footer__col ul li {
  font-size: var(--jxzn-fs-footer-item);
  line-height: 38px;
  color: var(--jxzn-text-gray);
  white-space: nowrap;
}

.jxzn-footer__col ul li a {
  color: inherit;
  display: inline-block;
}

.jxzn-footer__col ul li a:hover {
  color: var(--jxzn-text);
}

.jxzn-footer__qrcode {
  width: 140px;
  height: 140px;
  flex-shrink: 0;
}
.jxzn-footer__qrcode img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.jxzn-footer__logo {
  display: block;
  width: 280px;
  height: 78px;
  flex-shrink: 0;
}
.jxzn-footer__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ============================================================
 * 响应式（窄屏下避免出横向滚动条）
 * ============================================================ */

@media (max-width: 1500px) {
  .jxzn-header { padding: 21px 60px; gap: 40px; }
  .jxzn-nav { gap: 36px; }
  .jxzn-footer { padding: 60px 40px; gap: 60px; }
  .jxzn-footer__cols { gap: 40px; }
}

@media (max-width: 1100px) {
  .jxzn-header { padding: 16px 24px; gap: 24px; }
  .jxzn-nav { gap: 20px; }
  .jxzn-nav__item { font-size: 16px; }
  .jxzn-footer {
    flex-direction: column;
    padding: 60px 24px;
    gap: 40px;
  }
  .jxzn-footer__cols {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ============================================================
 * 成功案例页
 * ============================================================ */

.jxzn-page--case {
  background: #000;
}

.jxzn-case-hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: #05070d;
  color: #fff;
}

.jxzn-case-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.jxzn-case-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.46) 42%, rgba(0,0,0,0.2) 100%),
    linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.88) 100%);
}

.jxzn-case-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.jxzn-case-hero__content {
  position: relative;
  z-index: 2;
  width: min(780px, 72vw);
  padding: 24vh 0 0 9.1667vw;
}

.jxzn-case-hero__kicker,
.jxzn-case-section__head span {
  display: inline-block;
  margin-bottom: 22px;
  font-size: clamp(14px, 1vw, 18px);
  line-height: 1;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.58);
  text-transform: uppercase;
}

.jxzn-case-hero h1 {
  margin: 0;
  font-size: clamp(42px, 4.1667vw, 80px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0;
}

.jxzn-case-hero p {
  width: min(640px, 100%);
  margin: 28px 0 0;
  font-size: clamp(17px, 1.25vw, 24px);
  line-height: 1.8;
  color: rgba(255,255,255,0.72);
}

.jxzn-case-hero__stats {
  position: absolute;
  left: 9.1667vw;
  right: 9.1667vw;
  bottom: 8vh;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255,255,255,0.2);
  border-bottom: 1px solid rgba(255,255,255,0.14);
}

.jxzn-case-hero__stats div {
  min-height: 132px;
  padding: 28px 36px;
  border-right: 1px solid rgba(255,255,255,0.14);
}

.jxzn-case-hero__stats div:last-child {
  border-right: 0;
}

.jxzn-case-hero__stats strong {
  display: block;
  font-size: clamp(30px, 2.6vw, 50px);
  line-height: 1;
  font-weight: 700;
}

.jxzn-case-hero__stats span {
  display: block;
  margin-top: 14px;
  font-size: clamp(14px, 1.05vw, 20px);
  color: rgba(255,255,255,0.6);
}

.jxzn-case-section {
  position: relative;
  padding: 110px 9.1667vw;
  background: #000;
  color: #fff;
}

.jxzn-case-section--solar {
  background: #060b12;
}

.jxzn-case-section--scenes {
  background: #0b111c;
}

.jxzn-case-section--videos {
  background: #000;
}

.jxzn-case-section__head {
  width: min(860px, 100%);
  margin-bottom: 58px;
}

.jxzn-case-section__head h2 {
  margin: 0;
  font-size: clamp(32px, 2.7083vw, 52px);
  line-height: 1.3;
  font-weight: 700;
}

.jxzn-case-section__head p {
  margin: 20px 0 0;
  font-size: clamp(16px, 1.1vw, 21px);
  line-height: 1.8;
  color: rgba(255,255,255,0.64);
}

.jxzn-case-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.9fr);
  gap: 64px;
  align-items: center;
}

.jxzn-case-feature__visual {
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 45%, rgba(69,125,255,0.22), rgba(69,125,255,0) 54%),
    linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.1);
}

.jxzn-case-feature__visual img {
  width: min(72%, 560px);
  max-height: 430px;
  object-fit: contain;
}

.jxzn-case-feature__body h3 {
  margin: 0;
  font-size: clamp(26px, 2vw, 38px);
  line-height: 1.35;
}

.jxzn-case-feature__body p {
  margin: 24px 0 34px;
  font-size: clamp(16px, 1.05vw, 20px);
  line-height: 1.8;
  color: rgba(255,255,255,0.68);
}

.jxzn-case-feature__body ul {
  display: grid;
  gap: 18px;
}

.jxzn-case-feature__body li {
  position: relative;
  padding-left: 22px;
  font-size: clamp(15px, 1vw, 19px);
  line-height: 1.6;
  color: rgba(255,255,255,0.82);
}

.jxzn-case-feature__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
}

.jxzn-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.jxzn-case-card {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.1);
  overflow: hidden;
}

.jxzn-case-card img {
  width: 100%;
  height: 230px;
  object-fit: contain;
  padding: 36px;
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
}

.jxzn-case-card div {
  padding: 28px;
}

.jxzn-case-card h3 {
  margin: 0 0 14px;
  font-size: clamp(22px, 1.45vw, 28px);
  line-height: 1.35;
}

.jxzn-case-card p {
  margin: 0;
  font-size: clamp(15px, 0.94vw, 18px);
  line-height: 1.75;
  color: rgba(255,255,255,0.62);
}

.jxzn-case-video {
  width: 100%;
  background: #070707;
  border: 1px solid rgba(255,255,255,0.12);
}

.jxzn-case-video video {
  display: block;
  width: 100%;
  max-height: 760px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #000;
}

@media (max-width: 1100px) {
  .jxzn-case-hero__content {
    width: auto;
    padding: 160px 24px 260px;
  }

  .jxzn-case-hero__stats {
    left: 24px;
    right: 24px;
    bottom: 40px;
  }

  .jxzn-case-hero__stats div {
    padding: 22px 18px;
  }

  .jxzn-case-section {
    padding: 78px 24px;
  }

  .jxzn-case-feature {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .jxzn-case-feature__visual {
    min-height: 360px;
  }

  .jxzn-case-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .jxzn-case-hero {
    min-height: auto;
  }

  .jxzn-case-hero__content {
    padding: 140px 20px 44px;
  }

  .jxzn-case-hero__stats {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    margin: 20px;
    grid-template-columns: 1fr;
  }

  .jxzn-case-hero__stats div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(255,255,255,0.14);
  }

  .jxzn-case-hero__stats div:last-child {
    border-bottom: 0;
  }

  .jxzn-case-section {
    padding: 64px 20px;
  }

  .jxzn-case-feature__visual {
    min-height: 300px;
  }

  .jxzn-case-card {
    min-height: auto;
  }
}

/* ============================================================
 * 成功案例页 - 按 03 成功案例设计稿覆盖
 * ============================================================ */

.jxzn-page--case {
  background: #fff;
  color: #2c2c2c;
}

.jxzn-page--case .jxzn-main {
  background: #fff;
}

.jxzn-page--case .jxzn-case-hero {
  position: relative;
  width: 100%;
  height: 380px;
  min-height: 380px;
  overflow: hidden;
  background: #06162b;
  color: #fff;
}

.jxzn-page--case .jxzn-case-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
}

.jxzn-page--case .jxzn-case-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.18);
  pointer-events: none;
}

.jxzn-page--case .jxzn-case-hero h1 {
  position: absolute;
  left: 50%;
  top: 51%;
  z-index: 2;
  transform: translate(-50%, -50%);
  margin: 0;
  font-size: clamp(38px, 3.25vw, 62px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
  color: #fff;
  white-space: nowrap;
}

.jxzn-page--case .jxzn-case-video {
  position: relative;
  width: 100%;
  height: 820px;
  overflow: hidden;
  background: #080d12;
  border: 0;
}

.jxzn-page--case .jxzn-case-video__cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.jxzn-page--case .jxzn-case-video__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.08) 58%, rgba(0,0,0,0.46) 100%),
    rgba(7, 16, 22, 0.28);
}

.jxzn-page--case .jxzn-case-video__play {
  position: absolute;
  left: 50%;
  top: 51%;
  z-index: 3;
  width: 126px;
  height: 126px;
  transform: translate(-50%, -50%);
  border: 4px solid rgba(255,255,255,0.9);
  border-radius: 50%;
  background: rgba(255,255,255,0.24);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: transform 0.25s ease, background 0.25s ease;
}

.jxzn-page--case .jxzn-case-video__play:hover {
  transform: translate(-50%, -50%) scale(1.04);
  background: rgba(255,255,255,0.32);
}

.jxzn-page--case .jxzn-case-video__play span {
  display: block;
  width: 0;
  height: 0;
  margin-left: 9px;
  border-top: 22px solid transparent;
  border-bottom: 22px solid transparent;
  border-left: 32px solid rgba(255,255,255,0.95);
}

.jxzn-page--case .jxzn-case-tabs {
  position: absolute;
  left: 50%;
  bottom: 128px;
  z-index: 3;
  display: flex;
  gap: 12px;
  transform: translateX(-50%);
}

.jxzn-page--case .jxzn-case-tabs__item {
  height: 42px;
  min-width: 132px;
  padding: 0 24px;
  border: 0;
  border-radius: 999px;
  background: rgba(30, 38, 40, 0.66);
  color: rgba(255,255,255,0.66);
  font-size: 22px;
  font-weight: 500;
  line-height: 42px;
  white-space: nowrap;
  cursor: default;
}

.jxzn-page--case .jxzn-case-tabs__item.is-active {
  background: #fff;
  color: #191919;
  font-weight: 700;
}

.jxzn-page--case .jxzn-case-video__caption {
  position: absolute;
  left: 50%;
  bottom: 86px;
  z-index: 3;
  width: min(900px, calc(100% - 48px));
  transform: translateX(-50%);
  margin: 0;
  color: rgba(255,255,255,0.72);
  font-size: 16px;
  line-height: 1.6;
  text-align: center;
  white-space: nowrap;
}

.jxzn-page--case .jxzn-case-clients {
  background: #fff;
  color: #2e2e2e;
  padding: 92px 24px 104px;
}

.jxzn-page--case .jxzn-case-clients__inner {
  width: min(950px, 100%);
  margin: 0 auto;
}

.jxzn-page--case .jxzn-case-clients h2 {
  margin: 0 0 68px;
  color: #262626;
  font-size: clamp(34px, 2.6vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  letter-spacing: 0;
}

.jxzn-page--case .jxzn-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px 26px;
}

.jxzn-page--case .jxzn-case-card {
  min-height: 0;
  display: block;
  background: transparent;
  border: 0;
  overflow: visible;
  text-align: center;
}

.jxzn-page--case .jxzn-case-card figure {
  position: relative;
  height: 228px;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #edf0f2;
  box-shadow: 0 9px 18px rgba(0,0,0,0.18);
}

.jxzn-page--case .jxzn-case-card figure > img:not(.jxzn-case-card__logo) {
  width: 100%;
  height: 100%;
  padding: 0;
  object-fit: cover;
  background: transparent;
  transition: transform 0.35s ease;
}

.jxzn-page--case .jxzn-case-card:hover figure > img:not(.jxzn-case-card__logo) {
  transform: scale(1.035);
}

.jxzn-page--case .jxzn-case-card--state-grid figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.48);
}

.jxzn-page--case .jxzn-case-card__logo {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: 58%;
  height: auto;
  padding: 0;
  object-fit: contain;
  transform: translate(-50%, -50%);
  background: transparent;
}

.jxzn-page--case .jxzn-case-card h3 {
  margin: 18px 0 0;
  color: #333;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
}

.jxzn-page--case .jxzn-case-clients__note {
  margin: 86px auto 0;
  color: #888;
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
}

@media (max-width: 1100px) {
  .jxzn-page--case .jxzn-case-hero {
    height: 320px;
    min-height: 320px;
  }

  .jxzn-page--case .jxzn-case-video {
    height: 62vw;
    min-height: 460px;
  }

  .jxzn-page--case .jxzn-case-video__play {
    width: 96px;
    height: 96px;
    border-width: 3px;
  }

  .jxzn-page--case .jxzn-case-video__play span {
    border-top-width: 17px;
    border-bottom-width: 17px;
    border-left-width: 25px;
  }

  .jxzn-page--case .jxzn-case-tabs {
    bottom: 92px;
  }

  .jxzn-page--case .jxzn-case-video__caption {
    bottom: 48px;
    white-space: normal;
  }

  .jxzn-page--case .jxzn-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .jxzn-page--case .jxzn-case-hero {
    height: 260px;
    min-height: 260px;
  }

  .jxzn-page--case .jxzn-case-hero h1 {
    font-size: 34px;
  }

  .jxzn-page--case .jxzn-case-video {
    height: 420px;
    min-height: 420px;
  }

  .jxzn-page--case .jxzn-case-video__cover {
    object-position: center;
  }

  .jxzn-page--case .jxzn-case-video__play {
    width: 76px;
    height: 76px;
  }

  .jxzn-page--case .jxzn-case-tabs {
    bottom: 98px;
    gap: 8px;
  }

  .jxzn-page--case .jxzn-case-tabs__item {
    min-width: 102px;
    height: 34px;
    padding: 0 16px;
    font-size: 15px;
    line-height: 34px;
  }

  .jxzn-page--case .jxzn-case-video__caption {
    bottom: 32px;
    width: calc(100% - 36px);
    font-size: 13px;
  }

  .jxzn-page--case .jxzn-case-clients {
    padding: 58px 20px 72px;
  }

  .jxzn-page--case .jxzn-case-clients h2 {
    margin-bottom: 36px;
  }

  .jxzn-page--case .jxzn-case-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .jxzn-page--case .jxzn-case-card figure {
    height: 210px;
  }

  .jxzn-page--case .jxzn-case-clients__note {
    margin-top: 46px;
    font-size: 14px;
  }
}