/* ==========================================================================
   About Us 页面样式  v2
   用法：放到 skin/css/about.css，在 content.css 之后引入
   仅在 /about 页面生效
   v2 改动：新增 hero(H1)、数据条、制造能力、标准、六步流程、FAQ、结尾转化条
   ========================================================================== */

/* 局部变量：不依赖其他页面的 --hw-sec */
:root{
  --ab-sec: clamp(64px, 7vw, 108px);
  --ab-ink: #0f1418;
  --ab-mute: #5b6169;
  --ab-line: #eceef1;
  --ab-soft: #faf9f7;
}

/* ==========================================================================
   1. 首屏：工厂图 + H1 + 定位句
   ========================================================================== */
.ab-hero{position:relative;overflow:hidden;background:#0d141a}
.ab-hero-media{position:relative;height:clamp(300px,34vw,520px)}
.ab-hero-media img{
  position:absolute;inset:0;display:block;
  width:100%;height:100%;object-fit:cover;
}
.ab-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(8,13,18,.93) 0%,rgba(8,13,18,.62) 44%,rgba(8,13,18,.2) 100%);
}
.ab-hero-copy{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding-bottom:clamp(26px,3vw,48px);
}
.ab-h1{
  margin:0 0 14px;
  font-size:clamp(28px,3.6vw,50px);
  line-height:1.12;
  letter-spacing:-.02em;
  font-weight:800;
  color:#fff;
  text-transform:none;
  max-width:20em;
}
.ab-h1-sub{
  margin:0;max-width:44em;
  font-size:clamp(15px,1.25vw,18px);
  line-height:1.7;
  color:rgba(255,255,255,.82);
}

/* ==========================================================================
   1b. 面包屑条
   与产品页、案例页等内页同一套：浅底横条 + 左栏目名 + 右 HOME >> 路径
   ========================================================================== */
.ab-crumb-bar{
  background:#FAFAFA;
  border-top:1px solid #eceef0;
  border-bottom:1px solid #eceef0;
}
.ab-crumb-bar .l-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  padding-top:14px;padding-bottom:14px;
}
.ab-crumb-bar .banner-title-h1{
  font-size:20px;font-weight:700;line-height:1.2;
  color:var(--fontcolortitle,#131415);
  text-transform:uppercase;
  margin:0;
}
.ab-crumb-bar .banner-breadcrumbs{
  font-size:14px;line-height:1.5;color:#6b7178;
}
.ab-crumb-bar .banner-breadcrumbs a{
  color:inherit;transition:color .2s linear;
}
.ab-crumb-bar .banner-breadcrumbs a:hover{color:var(--color)}

/* ==========================================================================
   2. 关键数据条
   ========================================================================== */
.ab-stats{background:#fff;border-bottom:1px solid var(--ab-line)}
.ab-stats ul{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(14px,2vw,28px);
  margin:0;padding:clamp(26px,3vw,40px) 0;list-style:none;
}
.ab-stats li{
  text-align:center;padding:0 10px;
  border-right:1px solid var(--ab-line);
}
.ab-stats li:last-child{border-right:0}
.ab-stats b{
  display:block;line-height:1;
  font-size:clamp(26px,2.9vw,42px);
  font-weight:800;color:var(--ab-ink);
  letter-spacing:-.02em;
}
.ab-stats b em{
  font-style:normal;font-size:.46em;font-weight:700;
  color:var(--color);margin-left:3px;
}
.ab-stats span{
  display:block;margin-top:10px;
  font-size:13.5px;line-height:1.5;color:var(--ab-mute);
}
/* 待填占位：页面上显示为橙色，提醒还没填真实数字 */
.tbd{color:var(--color) !important}

/* ==========================================================================
   3. 公司简介：两栏，左图粘性跟随
   ========================================================================== */
.ab-intro{padding:var(--ab-sec) 0 0;background:#fff}

.company-about-wrap{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(40px,5vw,84px);
  align-items:start;
  padding-bottom:clamp(6px,1.2vw,18px);
}
.company-about-wrap > div{width:auto;min-width:0}

.company-about-wrap .about-img{
  position:sticky;top:110px;align-self:start;
  margin:0;padding:0;
  border-radius:16px;overflow:hidden;background:#f2f4f6;
  box-shadow:0 22px 48px -18px rgba(19,20,21,.35),0 2px 8px rgba(19,20,21,.06);
}
.company-about-wrap .about-img > img{
  display:block;width:100%;height:auto;
  aspect-ratio:4 / 5;object-fit:cover;border-radius:16px;
  transition:transform .7s cubic-bezier(.22,.61,.36,1);
}
.company-about-wrap .about-img:hover > img{transform:scale(1.04)}

.company-about-wrap .about-info{padding-top:0;align-self:start}
.company-about-wrap .about-info .home-title{
  position:relative;text-align:left;
  font-size:clamp(28px,2.4vw,40px);line-height:1.15;
  letter-spacing:-.01em;margin:0 0 34px;padding-bottom:20px;
  text-transform:none;
}
.company-about-wrap .about-info .home-title::after{
  content:"";position:absolute;left:0;bottom:0;
  width:56px;height:4px;border-radius:2px;background:var(--color);
}
.company-about-wrap .about-info .about-content{margin-top:0}
.company-about-wrap .about-info,
.company-about-wrap .about-content,
.company-about-wrap .about-content > *{min-width:0}

/* 定位句：独立成段，40-60 词，AI 抽取的就是这一段 */
.ab-lead{
  font-size:clamp(16px,1.3vw,18px) !important;
  line-height:1.85 !important;
  color:#2c3137 !important;
  margin:0 0 26px !important;
  padding-left:18px;
  border-left:3px solid var(--color);
}

.company-about-wrap .about-info .about-content p{
  font-size:16.5px;line-height:1.95;color:#4a4f55;margin-bottom:20px;
}
.company-about-wrap .about-info .about-content p:has(> strong:only-child),
.company-about-wrap .about-info .about-content h3,
.company-about-wrap .about-info .about-content h4{
  color:var(--fontcolortitle);font-weight:var(--fontweight);
  font-size:19px;letter-spacing:-.01em;
  margin-top:34px;margin-bottom:16px;
}

/* 后台编辑器（UEditor）会给图片写死内联宽高，例如
   style="width:800px;height:450px"。内联样式优先级高于类选择器，
   于是移动端只缩了宽度、高度仍是 450px，图片就被压成竖条。
   下面这几条必须带 !important 才能压掉内联样式。 */
.company-about-wrap .about-content img{
  display:block;
  width:100% !important;
  max-width:100% !important;
  height:auto !important;
  border-radius:12px;
}

/* 生产图组：同段 3 张以上自动三列。
   后台经常是 <p><span><img></span><span><img></span>… 这种结构，
   图片被 span 包了一层，所以 p > img:nth-of-type(3) 匹配不到
   （每个 span 里只有 1 张图，永远数不到第 3 个）。两条选择器都要写。 */
.company-about-wrap .about-content p:has(> img:nth-of-type(3)),
.company-about-wrap .about-content p:has(> span:nth-of-type(3)):has(img){
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;margin-bottom:28px;
}
.company-about-wrap .about-content p:has(> img:nth-of-type(3)) > *,
.company-about-wrap .about-content p:has(> span:nth-of-type(3)) > *{
  min-width:0;margin:0;
}
.company-about-wrap .about-content p:has(> img:nth-of-type(3)) img,
.company-about-wrap .about-content p:has(> span:nth-of-type(3)) img{
  aspect-ratio:4 / 3;object-fit:cover;border-radius:10px;
  transition:transform .45s ease,box-shadow .35s ease;
}
.company-about-wrap .about-content p:has(> img:nth-of-type(3)) img:hover,
.company-about-wrap .about-content p:has(> span:nth-of-type(3)) img:hover{
  transform:translateY(-4px);box-shadow:0 14px 26px -10px rgba(19,20,21,.4);
}

/* 视频：UEditor 同样写死 width/height 属性（800×533），
   只覆盖宽度会让它变成竖长条，height 也必须强制 auto。 */
.company-about-wrap .about-content video,
.company-about-wrap .about-content iframe{
  display:block;
  width:100% !important;max-width:100% !important;
  height:auto !important;aspect-ratio:16 / 9;
  border:0;border-radius:12px;object-fit:cover;
  background:#0f1418;
  box-shadow:0 14px 34px -16px rgba(19,20,21,.45);
}

/* 正文图片可点击放大（手机上六合一图太小，点开看原尺寸） */
.company-about-wrap .about-content img.ab-zoom{cursor:zoom-in}
body.ab-lb-lock{overflow:hidden}
.ab-lightbox{
  position:fixed;inset:0;z-index:99998;display:none;
  padding:16px;box-sizing:border-box;
  align-items:center;justify-content:center;
  background:rgba(9,12,16,.95);
  cursor:zoom-out;
}
.ab-lightbox.on{display:flex}
.ab-lightbox img{
  width:auto !important;height:auto !important;
  max-width:100% !important;max-height:100% !important;
  border-radius:6px;
  box-shadow:0 30px 80px -20px rgba(0,0,0,.85);
}

/* CTA 卡片 */
.company-about-wrap .about-cta{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:18px;
  margin-top:clamp(30px,3.5vw,48px);
  padding:24px clamp(22px,2.4vw,34px);
  background:linear-gradient(100deg,#fff8f1 0%,#fffdfb 65%);
  border:1px solid #f5e2ce;border-left:4px solid var(--color);
  border-radius:12px;
}
.company-about-wrap .about-cta .cta-q{
  font-size:17px;font-weight:var(--fontweight);color:#080808;
}
.company-about-wrap .about-cta .cta-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:20px;font-weight:var(--fontweight);
  color:var(--color);transition:opacity .2s linear;white-space:nowrap;
}
.company-about-wrap .about-cta .cta-link:hover{opacity:.78}
.company-about-wrap .color{
  margin-top:36px;padding-left:18px;
  border-left:4px solid var(--color);font-size:18px;
}

/* ==========================================================================
   4. 通用区块标题
   ========================================================================== */
.ab-head{max-width:720px;margin:0 auto clamp(30px,3.6vw,50px);text-align:center}
.ab-eye{
  display:inline-block;margin-bottom:14px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--color);
}
.ab-h2{
  margin:0 0 16px;
  font-size:clamp(24px,2.6vw,38px);line-height:1.2;
  letter-spacing:-.02em;font-weight:800;color:var(--ab-ink);
  text-transform:none;
}
.ab-sub{
  margin:0;font-size:clamp(14.5px,1.1vw,16.5px);
  line-height:1.8;color:var(--ab-mute);
}

/* ==========================================================================
   5. 制造能力：四工序
   ========================================================================== */
.ab-cap{padding:var(--ab-sec) 0;background:#fff}
.ab-cap-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(14px,1.6vw,22px);
  margin:0;padding:0;list-style:none;
}
.ab-cap-grid li{
  position:relative;
  padding:clamp(26px,2.4vw,34px) clamp(20px,1.8vw,26px);
  background:var(--ab-soft);
  border:1px solid var(--ab-line);
  border-radius:14px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.ab-cap-grid li:hover{
  transform:translateY(-5px);
  border-color:#e6d7c6;
  box-shadow:0 18px 34px -20px rgba(19,20,21,.35);
}
.ab-num{
  display:block;margin-bottom:16px;
  font-size:13px;font-weight:800;letter-spacing:.1em;
  color:var(--color);
}
.ab-cap-grid h3{
  margin:0 0 12px;font-size:18px;font-weight:700;
  color:var(--ab-ink);letter-spacing:-.01em;text-transform:none;
}
.ab-cap-grid p{
  margin:0;font-size:14px;line-height:1.8;color:var(--ab-mute);
}

/* ==========================================================================
   6. 设计与检验标准
   ========================================================================== */
.ab-std{padding:var(--ab-sec) 0;background:var(--ab-soft)}
.ab-std-list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(14px,1.6vw,20px);
  margin:0 auto;padding:0;list-style:none;max-width:1000px;
}
.ab-std-list li{
  display:flex;gap:18px;align-items:flex-start;
  padding:clamp(20px,2vw,28px) clamp(20px,2vw,28px);
  background:#fff;border:1px solid var(--ab-line);border-radius:12px;
}
.ab-std-list b{
  flex:0 0 auto;min-width:132px;
  font-size:14.5px;font-weight:800;color:var(--ab-ink);
  letter-spacing:-.01em;
}
.ab-std-list span{
  font-size:14px;line-height:1.75;color:var(--ab-mute);
}

/* ==========================================================================
   7. 六步交付流程（复用 .company-list 结构）
   ========================================================================== */
.ab-process{padding:var(--ab-sec) 0;background:#fff}
.ab-process .company-list{
  margin-top:0;
  padding:clamp(40px,4.6vw,68px) clamp(20px,3.4vw,56px);
  background:#faf9f7;border-radius:20px;
}
.ab-process .company-list ul{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(14px,1.6vw,20px);
  margin:0;padding:0;list-style:none;
  counter-reset:step;
}
.ab-process .company-list ul li{
  position:relative;width:auto;margin:0;
  display:flex;flex-direction:column;align-items:flex-start;
  padding:clamp(34px,3vw,42px) clamp(20px,2vw,26px) clamp(26px,2.4vw,34px);
  background:#fff;border:1px solid #f0ece7;border-radius:14px;
  overflow:hidden;counter-increment:step;
  box-shadow:none;
  transition:transform .3s ease,box-shadow .3s ease;
}
.ab-process .company-list ul li:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 34px -22px rgba(19,20,21,.4);
}
.ab-process .company-list ul li::after{
  content:"0" counter(step);
  position:absolute;top:10px;right:16px;
  font-size:44px;font-weight:700;line-height:1;
  color:rgba(240,133,25,.1);pointer-events:none;
}
.ab-process .company-list ul li .icon{margin-bottom:16px;line-height:1}
.ab-process .company-list ul li .title{
  padding:0 0 12px;font-size:18px;font-weight:700;
  color:var(--ab-ink);text-transform:none;letter-spacing:-.01em;
}
.ab-process .company-list ul li .text{
  font-size:14px;line-height:1.75;color:var(--ab-mute);
}

/* ==========================================================================
   8. FAQ
   ========================================================================== */
.ab-faq{padding:var(--ab-sec) 0;background:var(--ab-soft)}
.ab-faq-list{max-width:900px;margin:0 auto;border-top:1px solid #e6e2dc}
.ab-faq-list details{border-bottom:1px solid #e6e2dc}
.ab-faq-list summary{
  position:relative;display:block;
  padding:22px 48px 22px 0;
  font-size:clamp(15.5px,1.25vw,17.5px);font-weight:700;
  color:var(--ab-ink);cursor:pointer;list-style:none;
  transition:color .2s ease;
}
.ab-faq-list summary::-webkit-details-marker{display:none}
.ab-faq-list summary::after{
  content:"";position:absolute;right:8px;top:50%;
  width:9px;height:9px;margin-top:-6px;
  border-right:2px solid var(--color);border-bottom:2px solid var(--color);
  transform:rotate(45deg);transition:transform .25s ease;
}
.ab-faq-list details[open] summary{color:var(--color)}
.ab-faq-list details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
.ab-faq-list summary:hover{color:var(--color)}
.ab-faq-list p{
  margin:0;padding:0 48px 24px 0;
  font-size:15px;line-height:1.85;color:var(--ab-mute);
}

/* ==========================================================================
   9. 结尾转化条
   ========================================================================== */
.ab-end{padding:clamp(48px,5.4vw,80px) 0;background:#fff}
.ab-end-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(24px,4vw,60px);flex-wrap:wrap;
  padding:clamp(32px,3.4vw,52px) clamp(26px,3.4vw,54px);
  background:#0f1418;border-radius:20px;
}
.ab-end .ab-h2{color:#fff;margin-bottom:12px;font-size:clamp(22px,2.2vw,32px)}
.ab-end .ab-sub{color:rgba(255,255,255,.7);max-width:46em}
.ab-end-actions{display:flex;gap:14px;flex-wrap:wrap}
.ab-btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:50px;padding:0 30px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  background:var(--color);color:#fff;border:1px solid var(--color);
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.ab-btn:hover{background:#d9740f;border-color:#d9740f;color:#fff}
.ab-btn--ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.ab-btn--ghost:hover{background:#fff;border-color:#fff;color:#0f1418}

/* ==========================================================================
   10. 响应式
   ========================================================================== */
@media (max-width:1024px){
  .ab-cap-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ab-process .company-list ul{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* 768 以下跟其他内页一致：只留面包屑，隐掉栏目大标题 */
@media (max-width:768px){
  .ab-crumb-bar .l-wrap{padding-top:11px;padding-bottom:11px}
  .ab-crumb-bar .banner-title-h1{display:none}
  .ab-crumb-bar .banner-breadcrumbs{font-size:13px}
}

@media (max-width:900px){
  .company-about-wrap{grid-template-columns:minmax(0,1fr);gap:30px}
  .company-about-wrap .about-img{position:static;top:auto}
  .company-about-wrap .about-img > img{aspect-ratio:16 / 9}
  .company-about-wrap .about-content p:has(> img:nth-of-type(3)),
  .company-about-wrap .about-content p:has(> span:nth-of-type(3)):has(img){
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .ab-std-list{grid-template-columns:minmax(0,1fr)}
  .ab-hero-media{height:clamp(280px,46vw,400px)}
  .ab-h1{max-width:16em}
}

@media (max-width:640px){
  .ab-stats ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 10px}
  .ab-stats li:nth-child(2){border-right:0}
  .ab-stats li:nth-child(n+3){padding-top:20px;border-top:1px solid var(--ab-line)}
  .ab-cap-grid{grid-template-columns:minmax(0,1fr)}
  .ab-process .company-list ul{grid-template-columns:minmax(0,1fr)}
  .ab-process .company-list{border-radius:14px}
  .company-about-wrap .about-cta{flex-direction:column;align-items:flex-start;gap:10px}
  .ab-end-inner{border-radius:14px}
  .ab-end-actions{width:100%}
  .ab-btn{flex:1 1 auto;padding:0 20px}
  .ab-faq-list summary{padding-right:34px}
  .ab-faq-list p{padding-right:20px}
  .ab-std-list li{flex-direction:column;gap:8px}
  .ab-std-list b{min-width:0}
}