/* ============ 基础变量 ============ */
:root{
  --blue:#0A59DA;
  --blue-dark:#0745ab;
  --blue-light:#3b7ef0;
  --blue-soft:#eaf1ff;
  --green:#6BBE2C;
  --ink:#1a2233;
  --text:#445065;
  --muted:#8893a7;
  --line:#e7ebf2;
  --bg:#ffffff;
  --bg-soft:#f6f8fc;
  --radius:14px;
  --shadow:0 12px 34px rgba(20,50,110,.08);
  --shadow-lg:0 22px 60px rgba(20,50,110,.14);
  --container:1440px;
  --header-h:84px;
  --font:'Microsoft YaHei','微软雅黑','PingFang SC',sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:90px 0}

/* ============ 页头 ============ */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(20,50,110,.05);
  transition:box-shadow .3s,background .3s;
}
.header.scrolled{box-shadow:0 6px 22px rgba(20,50,110,.08)}
.header-inner{
  height:100%;display:flex;align-items:center;gap:24px;justify-content: space-between;
}
.logo{flex-shrink:0;display:flex;align-items:center}
.logo img{height:45px;width:auto;transition:height .3s}
.header.scrolled .logo img{height:46px}

.nav{margin-left:auto}
.nav-list{display:flex;gap:9px;align-items:center}
.nav-link{
  display:block;padding:10px 10px;
  font-size:17px;font-weight:500;color:var(--ink);
  border-radius:8px;position:relative;transition:color .25s,background .25s;
}
.nav-link::after{
  content:'';position:absolute;left:27px;right:27px;bottom:6px;height:2px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .28s;
}
.nav-link:hover{color:var(--blue)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--blue)}
.nav-link.active::after{transform:scaleX(1)}

.header-contact{
  display:flex;align-items:center;gap:8px;flex-shrink:0;
  padding:9px 18px;border-radius:30px;
  background:var(--blue-soft);color:var(--blue);font-weight:600;font-size:16px;
}
.header-contact .phone-icon{fill:var(--blue)}
.header-contact span{letter-spacing:.5px}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* ============ Banner ============ */
.banner{
  margin-top:var(--header-h);
  position:relative;height:550px;overflow:hidden;background:var(--ink);
}
.banner-track{position:relative;width:100%;height:100%}
.banner-slide{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:0;transition:opacity 1s ease-in-out;
  display:flex;align-items:center;
}
.banner-slide.active{opacity:1}
.banner-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,28,68,.62) 0%,rgba(10,40,110,.42) 45%,rgba(10,89,218,.12) 100%);
}
.banner-content{position:relative;z-index:2;text-align:left}
.banner-title{
  color:#fff;font-size:52px;font-weight:800;letter-spacing:2px;
  line-height:1.25;text-shadow:0 2px 16px rgba(0,0,0,.25);
  white-space:nowrap;
  opacity:0;transform:translateY(30px);transition:all .8s .2s;
}
.banner-desc{
  color:rgba(255,255,255,.92);font-size:22px;margin-top:18px;
  letter-spacing:1px;text-shadow:0 1px 8px rgba(0,0,0,.2);
  white-space:nowrap;
  opacity:0;transform:translateY(24px);transition:all .8s .4s;
}
.banner-btns{margin-top:34px;display:flex;gap:16px;
  opacity:0;transform:translateY(20px);transition:all .8s .6s}
.banner-slide.active .banner-title,
.banner-slide.active .banner-desc,
.banner-slide.active .banner-btns{opacity:1;transform:translateY(0)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 34px;border-radius:30px;font-size:17px;font-weight:600;
  letter-spacing:1px;transition:all .25s;cursor:pointer;border:0;
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(10,89,218,.4)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.16);color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:#fff;color:var(--blue);border-color:#fff}

.banner-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:50px;height:50px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(255,255,255,.18);color:#fff;font-size:34px;line-height:46px;
  display:flex;align-items:center;justify-content:center;transition:.25s;
}
.banner-arrow:hover{background:var(--blue)}
.banner-prev{left:30px}.banner-next{right:30px}
.banner-dots{
  position:absolute;bottom:26px;left:0;right:0;z-index:3;
  display:flex;justify-content:center;gap:10px;
}
.banner-dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:.25s;border:0}
.banner-dot.active{background:#fff;width:34px;border-radius:6px}

/* ============ 内页横幅（定稿每个子页 header 下方的中文大标题 + 英文副题） ============ */
.sub-banner{
  margin-top:var(--header-h);
  width:100%;height:360px;position:relative;
  background-color:#0a286e;background-position:center;background-size:cover;background-repeat:no-repeat;
}
.sub-banner-overlay{position:absolute;inset:0;background:rgba(10,40,110,.42)}
.sub-banner-inner{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:center;align-items:flex-start;
}
.sub-banner .title-cn{
  font-size:46px;font-weight:800;color:#fff;letter-spacing:4px;
  text-shadow:0 2px 12px rgba(0,0,0,.35);line-height:1.1;
}
.sub-banner .title-en{
  margin-top:10px;font-size:22px;font-weight:600;letter-spacing:6px;
  color:rgba(255,255,255,.8);text-shadow:0 2px 8px rgba(0,0,0,.3);text-transform:uppercase;
}
@media(max-width:768px){
  .sub-banner{height:240px}
  .sub-banner .title-cn{font-size:30px;letter-spacing:2px}
  .sub-banner .title-en{font-size:15px;letter-spacing:3px}
}

/* ============ 内页正文容器（定稿 .page-body）+ 公司简介左图 sticky 布局 ============ */
.page-body{background:var(--bg-soft);padding:70px 0}
.about-detail{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:start;margin-bottom:56px}
.about-detail-photo{
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  position:sticky;top:calc(var(--header-h) + 30px);
}
.about-detail-photo img{width:100%;height:420px;object-fit:cover;display:block}
.about-detail-text h2{
  font-size:26px;font-weight:800;color:var(--ink);letter-spacing:2px;
  margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--line);position:relative;
}
.about-detail-text h2::after{content:'';position:absolute;left:0;bottom:-2px;width:64px;height:2px;background:var(--blue)}
.about-detail-text p{font-size:16px;color:var(--text);line-height:2.1;margin-bottom:18px;text-indent:2em}
.about-detail-text p:last-child{margin-bottom:0}
@media(max-width:768px){
  .page-body{padding:48px 0}
  .about-detail{grid-template-columns:1fr;gap:30px}
  .about-detail-photo{position:static}
  .about-detail-photo img{height:260px}
  .about-detail-text h2{font-size:22px}
}

/* 分页（定稿按钮组：与项目案例/常见问题一致） */
.pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:44px;flex-wrap:wrap}
.pager button{
  min-width:42px;height:42px;padding:0 14px;border:1px solid var(--line);background:#fff;
  border-radius:8px;font-size:15px;color:var(--text);cursor:pointer;transition:.25s;font-family:inherit;
}
.pager button:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}
.pager button.active{background:var(--blue);border-color:var(--blue);color:#fff}
.pager button:disabled{opacity:.4;cursor:not-allowed}

/* ============ 产品列表&详情（对齐定稿 sub-products.html / sub-product-detail.html） ============ */
/* 列表筛选：定稿与案例列表同款，左对齐胶囊按钮 */
.case-filter{display:flex;justify-content:flex-start;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.case-filter button{padding:9px 26px;border-radius:30px;border:1.5px solid var(--line);background:#fff;color:var(--text);font-size:15px;font-weight:500;cursor:pointer;transition:.25s;font-family:inherit}
.case-filter button:hover{border-color:var(--blue);color:var(--blue)}
.case-filter button.active{background:var(--blue);border-color:var(--blue);color:#fff}
/* 详情：定稿为「左图右信息」+ 富文本白卡 + 上下条卡片。
   样式加 .product-detail 作用域前缀，避免影响案例详情页（case_show）仍在用的旧 pd-* 居中版式 */
.product-detail{background:var(--bg-soft);padding:60px 0}
.product-detail .pd-container{max-width:var(--container);margin:0 auto;padding:0 24px}
.product-detail .pd-head{display:grid;grid-template-columns:5fr 6fr;gap:48px;background:#fff;border-radius:var(--radius);padding:40px;box-shadow:var(--shadow);margin-bottom:36px;text-align:left;border-bottom:0}
.product-detail .pd-img{border-radius:10px;overflow:hidden;background:var(--bg-soft);aspect-ratio:4/3}
.product-detail .pd-img img{width:100%;height:100%;object-fit:cover}
.product-detail .pd-info{display:flex;flex-direction:column;justify-content:center}
.product-detail .pd-tag{display:inline-block;padding:6px 18px;background:var(--blue-soft);color:var(--blue);border-radius:20px;font-size:14px;font-weight:600;width:fit-content;letter-spacing:0;margin-bottom:0}
.product-detail .pd-name{font-size:34px;font-weight:800;color:var(--ink);letter-spacing:0;margin-top:18px;margin-bottom:0;line-height:1.3}
.product-detail .pd-desc{font-size:16px;color:var(--text);line-height:1.9;margin-top:16px;max-width:none}
.product-detail .pd-cta{margin-top:30px;display:flex;justify-content:flex-start;gap:14px;flex-wrap:wrap}
.product-detail .pd-cta a{padding:12px 32px;border-radius:30px;font-size:15px;font-weight:600;display:inline-block;text-decoration:none;transition:.25s}
.product-detail .pd-cta a.btn-primary{background:var(--blue);color:#fff;box-shadow:none}
.product-detail .pd-cta a.btn-primary:hover{background:var(--blue-dark);transform:none}
.product-detail .pd-cta a.btn-line{border:1.5px solid var(--blue);color:var(--blue);background:#fff}
.product-detail .pd-cta a.btn-line:hover{background:var(--blue);color:#fff}
/* 富文本内容区（单个白卡容器，后台编辑器输出标准 HTML） */
.product-detail .pd-content{background:#fff;border-radius:var(--radius);padding:48px 56px;box-shadow:var(--shadow);font-size:16px;color:var(--text);line-height:2}
.product-detail .pd-content p > strong:only-child{display:block;font-size:20px;font-weight:800;color:var(--ink);margin:36px 0 16px;line-height:1.5}
.product-detail .pd-content p:first-child > strong:only-child{margin-top:0}
.product-detail .pd-content p{margin:0 0 16px}
.product-detail .pd-content p:last-child{margin-bottom:0}
.product-detail .pd-content strong{color:var(--ink);font-weight:700}
.product-detail .pd-content img{max-width:100%;height:auto;border-radius:10px;margin:12px 0}
.product-detail .pd-content ul{margin:0 0 16px;padding-left:8px;list-style:none}
.product-detail .pd-content ul li{position:relative;padding-left:20px;font-size:15px;color:var(--text);line-height:2;margin-bottom:8px}
.product-detail .pd-content ul li::before{content:'';position:absolute;left:4px;top:14px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.product-detail .pd-content table{width:100%;border-collapse:collapse;font-size:15px;margin:16px 0;min-width:560px;display:table;overflow-x:auto}
.product-detail .pd-content th{background:var(--blue);color:#fff;padding:14px 16px;text-align:center;font-weight:600;border:1px solid #1a4ec0}
.product-detail .pd-content td{padding:13px 16px;border:1px solid var(--line);text-align:center;color:var(--text)}
.product-detail .pd-content tbody tr:nth-child(even) td{background:var(--bg-soft)}
.product-detail .pd-content td:first-child{font-weight:600;color:var(--ink)}
/* 上一条/下一条 */
.product-detail .pd-nav{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px;padding:0;border-top:0}
.product-detail .pd-nav a{background:#fff;border-radius:var(--radius);padding:20px 26px;text-decoration:none;color:var(--text);box-shadow:var(--shadow);transition:.25s;border:1px solid transparent;display:block}
.product-detail .pd-nav a:hover{border-color:var(--blue);transform:translateY(-3px);box-shadow:var(--shadow)}
.product-detail .pd-nav a:hover .pd-nav-title{color:var(--blue)}
.product-detail .pd-nav-label{font-size:13px;color:var(--muted);margin-bottom:6px;display:block}
.product-detail .pd-nav-title{font-size:16px;font-weight:600;color:var(--ink);transition:.2s}
.product-detail .pd-nav-next{text-align:right}
@media(max-width:900px){
  .product-detail .pd-head{grid-template-columns:1fr;gap:24px;padding:24px}
}
@media(max-width:768px){
  .product-detail .pd-name{font-size:24px}
  .product-detail .pd-content{padding:24px}
  .product-detail .pd-content p > strong:only-child{font-size:18px}
  .product-detail .pd-content table{font-size:13px}
  .product-detail .pd-content th,.product-detail .pd-content td{padding:10px 8px}
  .product-detail .pd-nav{grid-template-columns:1fr}
}

/* ============ 详情页（产品详情 / 案例详情） ============ */
.pd{max-width:1100px;margin:0 auto}
.pd-head{text-align:center;padding-bottom:30px;border-bottom:1px solid var(--line)}
.pd-tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:#fff;background:var(--blue);padding:4px 16px;border-radius:20px;margin-bottom:16px}
.pd-name{font-size:32px;font-weight:800;color:var(--ink);letter-spacing:2px;line-height:1.4;margin-bottom:12px}
.pd-desc{font-size:16px;color:var(--muted);line-height:1.9;max-width:820px;margin:0 auto}
.pd-meta{margin-top:18px;font-size:14px;color:var(--muted);display:flex;justify-content:center;gap:10px;align-items:center}
.pd-meta .dm-sep{color:var(--line)}
.pd-cta{margin-top:26px;display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.pd-photo{margin:44px 0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--bg)}
.pd-photo img{width:100%;height:420px;object-fit:cover}
.pd-content{font-size:16px;color:var(--text);line-height:2.1}
.pd-content p{margin-bottom:16px}
.pd-content img{max-width:100%;height:auto;border-radius:10px;margin:12px 0}
.pd-spec{
  margin-top:30px;padding:20px 24px;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius);display:flex;flex-wrap:wrap;gap:12px 32px;align-items:center;
}
.pd-spec .ds-label{font-size:13px;font-weight:700;letter-spacing:1px;color:#fff;background:var(--blue);padding:4px 12px;border-radius:6px}
.pd-spec .ds-value{font-size:16px;font-weight:600;color:var(--ink)}
.pd-nav{
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.pd-nav .pd-nav-item{
  flex:1 1 320px;min-width:0;padding:16px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--bg);display:flex;flex-direction:column;gap:6px;transition:.25s;
}
.pd-nav .pd-nav-item:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.pd-nav .pd-nav-item.next{text-align:right;align-items:flex-end}
.pd-nav .dn-label{font-size:13px;letter-spacing:2px;color:var(--blue);font-weight:700}
.pd-nav .dn-title{font-size:15px;color:var(--ink);font-weight:600;line-height:1.6}
.btn-outline{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-outline:hover{background:var(--blue-soft)}
@media(max-width:768px){
  .pd-name{font-size:24px}
  .pd-photo img{height:240px}
  .pd-nav .pd-nav-item.next{text-align:left;align-items:flex-start}
}

/* ============ 分站小节标题（实力资质等按「一、二、三」分块的页面） ============ */
.honor-block+.honor-block{margin-top:72px}
.block-title{
  display:flex;align-items:center;gap:12px;margin-bottom:32px;
  font-size:24px;font-weight:700;color:var(--blue);letter-spacing:3px;
}
.block-title::before{content:'';width:4px;height:24px;background:var(--blue);border-radius:2px;flex-shrink:0}
.block-title .cn{color:var(--blue)}
.block-title .en{font-size:14px;color:var(--muted);font-weight:500;letter-spacing:2px;margin-left:4px}
@media(max-width:768px){
  .block-title{font-size:20px;letter-spacing:2px}
  .block-title .en{font-size:13px}
}

/* ============ 内页版块间距 + 联系方式卡片（对齐 htmls\sub-contact.html） ============ */
.page-section{margin-bottom:56px}
.page-section:last-child{margin-bottom:0}

.contact-info{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  border-top:3px solid var(--blue);padding:32px 24px;text-align:center;
  box-shadow:var(--shadow);transition:.3s;
}
.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.contact-card.accent{border-top-color:#C8A45C}
.contact-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(10,89,218,.06),rgba(200,164,92,.1));
}
.contact-icon svg{width:26px;height:26px;fill:var(--blue)}
.contact-card.accent .contact-icon svg{fill:#C8A45C}
.contact-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px;letter-spacing:2px}
.contact-card .info-value{font-size:16px;font-weight:600;color:var(--blue);line-height:1.7;word-break:break-all}
.contact-card .info-value a{color:var(--blue)}
.contact-card .info-sub{font-size:14px;color:var(--muted);line-height:1.9;margin-top:8px}
@media(max-width:900px){
  .contact-info{grid-template-columns:1fr}
  .contact-card{padding:28px 20px}
}

/* ============ 通用版块标题 ============ */
.section-head{text-align:center;max-width:780px;margin:0 auto 56px}
.section-head--left{display:flex;justify-content:space-between;align-items:center;position:relative;padding-bottom:14px}
.more-link{font-size:15px;font-weight:700;letter-spacing:2px;color:var(--blue);text-decoration:none;white-space:nowrap;padding-bottom:0;transition:.25s;position:relative;top:3px}
.more-link:hover{opacity:.7}
.products .section-head,.cases .section-head,.honors .section-head,.faq .section-head,.about .about-text{margin-top:-12px}
.section-tag{
  display:inline-block;font-size:14px;font-weight:700;letter-spacing:3px;
  color:var(--blue);background:var(--blue-soft);padding:5px 16px;border-radius:20px;
}
.section-title{font-size:38px;font-weight:800;color:var(--ink);margin-top:18px;letter-spacing:2px}
.section-sub{font-size:17px;color:var(--muted);margin-top:14px}

/* ============ 公司简介 ============ */
.about{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1.12fr;gap:54px;align-items:center}
.about-text{padding-right:8px}
.about-title-row{display:flex;justify-content:space-between;align-items:center;position:relative;padding-bottom:14px}
.about-en{display:inline-block;font-size:44px;font-weight:800;letter-spacing:2px;color:#9aa5b8;opacity:.45;vertical-align:baseline;white-space:nowrap;line-height:1;position:relative;top:3px}
.about-sep{display:inline-block;width:3px;height:30px;background:#c4ccd8;opacity:.6;border-radius:2px;vertical-align:baseline;margin:0 16px;position:relative;top:3px}
.about-title{font-size:36px;color:var(--ink);font-weight:800;letter-spacing:2px;line-height:1.2;flex:1}
.about-title-row::after,.section-head--left::after{content:'';position:absolute;left:0;bottom:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue) 0,var(--blue) 56px,#e1e6ef 56px,#e1e6ef 100%);border-radius:1px;z-index:0}
.about-title-row>*,.section-head--left>*{position:relative;z-index:1}
.about-sub{font-size:19px;color:var(--blue);font-weight:600;margin-top:8px;letter-spacing:1px}
.about-para{margin-top:18px;font-size:16px;color:var(--text);line-height:1.95}
.about-btn{margin-top:30px}
.about-photo{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 24px rgba(20,50,110,.10)}
.about-photo img{width:100%;height:440px;object-fit:cover;transition:transform .6s}
.about-photo:hover img{transform:scale(1.04)}

/* ============ 产品&服务 ============ */
.products{background:var(--bg-soft)}
.section-head--left{text-align:left;max-width:none;margin-left:0;margin-right:0}
.products .about-title::after{right:0}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.product-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border:1px solid var(--line);
}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.product-img{height:200px;overflow:hidden;background:var(--bg-soft)}
.product-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.product-card:hover .product-img img{transform:scale(1.08)}
.product-body{padding:22px 20px 24px}
.product-cat{
  display:inline-block;font-size:12px;font-weight:600;color:var(--blue);
  background:var(--blue-soft);padding:3px 12px;border-radius:20px;
}
.product-body h3{font-size:19px;color:var(--ink);font-weight:700;margin:12px 0 8px}
.product-body p{font-size:14px;color:var(--muted);line-height:1.75;min-height:62px}
.product-more{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--blue);transition:.25s}
.product-more:hover{letter-spacing:1px}

/* ============ 项目案例（对齐定稿 sub-cases.html） ============ */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.case-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  border:1px solid var(--line);transition:.35s;cursor:pointer;display:block;text-decoration:none;color:inherit;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-card .case-img{position:relative;height:220px;overflow:hidden}
.case-card .case-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-img img{transform:scale(1.08)}
.case-card .case-body{padding:22px 22px 24px}
.case-card .case-title{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px;line-height:1.5}
.case-card .case-desc{font-size:14px;color:var(--muted);line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-card .case-footer{margin-top:16px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.case-card .case-tag{
  padding:4px 14px;border-radius:20px;background:var(--blue-soft);color:var(--blue);
  font-size:13px;font-weight:600;letter-spacing:1px;white-space:nowrap;
}
.case-card .case-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--blue);transition:.25s;white-space:nowrap;
}
.case-card:hover .case-link{gap:12px}
@media (max-width:1100px){
  .case-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:768px){
  .case-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .case-card .case-img{height:160px}
}

/* ============ 案例详情（对齐定稿 sub-case-detail.html） ============ */
.detail-main{padding:60px 0 80px;background:var(--bg)}
.detail-container{max-width:1100px;margin:0 auto;padding:0 24px}
.detail-header{text-align:center;margin-bottom:40px;padding-bottom:32px;border-bottom:1px solid var(--line)}
.detail-title{font-size:36px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:20px;letter-spacing:2px}
.detail-meta{display:flex;justify-content:center;align-items:center;gap:24px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.detail-meta span{display:inline-flex;align-items:center;gap:6px}
.detail-meta .dm-sep{width:1px;height:14px;background:var(--line);padding:0}
.detail-content{font-size:17px;line-height:2.4;color:var(--text)}
.detail-content p{margin-bottom:24px;text-indent:2em}
.detail-content img{max-width:100%;height:auto;width:auto;border-radius:var(--radius);margin:24px 0}
.detail-content .img-caption{text-align:center;font-size:14px;color:var(--muted);margin-top:-16px;margin-bottom:32px;text-indent:0}
.detail-content blockquote{background:var(--bg-soft);padding:24px 28px;border-radius:var(--radius-sm);margin:32px 0;font-size:15px;color:var(--text);line-height:2;text-indent:0;border-left:4px solid var(--blue)}
.detail-footer{margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}
.detail-back{
  display:inline-block;margin-bottom:24px;padding:10px 28px;border:1px solid var(--blue);color:var(--blue);
  border-radius:6px;font-size:15px;text-decoration:none;transition:.3s;background:#fff;
}
.detail-back:hover{background:var(--blue);color:#fff}
.detail-nav{display:flex;justify-content:space-between;gap:24px}
.detail-nav-item{
  flex:1;padding:28px 40px;border-radius:var(--radius-sm);background:var(--bg-soft);
  transition:.35s;border:1px solid var(--line);min-height:100px;
  display:flex;flex-direction:column;justify-content:center;text-decoration:none;color:inherit;
}
.detail-nav-item:hover{background:var(--bg);box-shadow:var(--shadow-sm);border-color:rgba(10,89,218,.3)}
.detail-nav-item .dn-label{font-size:13px;color:var(--muted);margin-bottom:6px;letter-spacing:1px}
.detail-nav-item .dn-title{font-size:15px;font-weight:600;color:var(--ink);transition:color .3s;line-height:1.5}
.detail-nav-item:hover .dn-title{color:var(--blue)}
.detail-nav-item.next{text-align:right;align-items:flex-end}
@media (max-width:768px){
  .detail-main{padding:40px 0 60px}
  .detail-title{font-size:24px}
  .detail-content{font-size:15px;line-height:2}
  .detail-nav{flex-direction:column}
  .detail-nav-item.next{text-align:left;align-items:flex-start}
}

/* ============ 实力资质（对齐定稿 sub-honors.html） ============ */
.page-content{max-width:var(--container);margin:0 auto;padding:0 24px}
.page-content h2{font-size:24px;font-weight:800;color:var(--ink);margin:40px 0 20px}
.page-content h2:first-child{margin-top:0}
.page-content p{font-size:16px;color:var(--text);line-height:2;margin-bottom:16px}
.page-content ul{margin:0 0 24px;padding-left:8px;list-style:none}
.page-content ul li{position:relative;padding-left:20px;font-size:16px;color:var(--text);line-height:2.1;margin-bottom:10px}
.page-content ul li::before{content:'';position:absolute;left:4px;top:14px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.page-content ul li strong{color:var(--ink);font-weight:700}
.page-content img{max-width:100%;border-radius:8px;box-shadow:0 4px 16px rgba(20,50,110,.1)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:20px 0 40px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:20px 0 40px}
.grid-3 figure,.grid-4 figure{margin:0;text-align:center}
.grid-3 img{width:100%;height:auto;display:block}
.grid-4 img{width:100%;height:240px;object-fit:cover;display:block}
.grid-3 figcaption,.grid-4 figcaption{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.6}
@media (max-width:768px){
  .page-content{padding:0 16px}
  .page-content h2{font-size:20px}
  .grid-3,.grid-4{grid-template-columns:1fr}
}

/* ============ 企业优势 ============ */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.adv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:38px 30px;transition:all .3s;position:relative;overflow:hidden;
}
.adv-card::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--blue),var(--blue-light));
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.adv-card:hover::before{transform:scaleX(1)}
.adv-icon{
  width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:var(--blue-soft);margin-bottom:22px;
}
.adv-icon svg{width:32px;height:32px;fill:var(--blue)}
.adv-card h3{font-size:21px;color:var(--ink);font-weight:700;margin-bottom:12px}
.adv-card p{font-size:14.5px;color:var(--muted);line-height:1.85}

/* ============ 战略规划 ============ */
.strategy{background:linear-gradient(180deg,var(--bg-soft) 0%,#fff 100%)}
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:40px}
.timeline::before{
  content:'';position:absolute;left:18px;top:8px;bottom:8px;width:3px;
  background:linear-gradient(180deg,var(--blue),var(--blue-light));
}
.timeline-item{position:relative;padding-bottom:44px;display:flex;gap:30px;align-items:flex-start}
.timeline-item:last-child{padding-bottom:0}
.timeline-node{
  flex-shrink:0;width:40px;height:40px;border-radius:50%;
  background:#fff;border:3px solid var(--blue);color:var(--blue);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
  position:absolute;left:-40px;z-index:2;box-shadow:0 0 0 6px #fff;
}
.timeline-content{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;flex:1;box-shadow:var(--shadow);transition:.3s}
.timeline-content:hover{box-shadow:var(--shadow-lg);transform:translateX(6px)}
.timeline-content h3{font-size:21px;color:var(--ink);font-weight:700;margin-bottom:8px}
.timeline-content p{font-size:15px;color:var(--muted);line-height:1.85}

/* ============ 实力资质 ============ */
.honors{background:var(--bg-soft)}
.honor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.honor-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 28px;text-align:center;transition:all .3s;
}
.honor-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--blue)}
.honor-icon{
  width:72px;height:72px;margin:0 auto 20px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),var(--blue-light));
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.honor-icon svg{width:36px;height:36px}
.honor-card h4{font-size:18px;color:var(--ink);font-weight:700;margin-bottom:8px}
.honor-card p{font-size:14px;color:var(--muted);line-height:1.7}

/* ============ 常见问题 ============ */
.faq{background:var(--bg-soft)}
.faq-list{max-width:none;margin:0}
.faq-item{background:#fff;border-radius:12px;margin-bottom:14px;overflow:hidden;border:1px solid var(--line);transition:.25s}
.faq-item.open{box-shadow:var(--shadow);border-color:var(--blue)}
.faq-q{
  width:100%;text-align:left;padding:22px 26px;background:none;border:0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;align-items:center;
}
.faq-icon{
  flex-shrink:0;width:24px;height:24px;position:relative;margin-left:18px;
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;background:var(--blue);border-radius:2px;transition:.3s;
}
.faq-icon::before{top:50%;left:0;width:100%;height:3px;transform:translateY(-50%)}
.faq-icon::after{left:50%;top:0;width:3px;height:100%;transform:translateX(-50%)}
.faq-item.open .faq-icon::after{transform:translateX(-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:240px}
.faq-a p{padding:0 26px 22px;font-size:15px;color:var(--text);line-height:1.9}

/* ============ 友情链接（页底之上） ============ */
.friendlink{
  background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:16px 0;
}
.friendlink-inner{
  display:flex;flex-wrap:wrap;align-items:center;
  font-size:14px;color:var(--text);line-height:2;
}
.friendlink-label{
  color:var(--blue);font-weight:600;margin-right:14px;white-space:nowrap;
  padding-right:14px;border-right:1px solid #d8dee8;
}
.friendlink-a{
  color:#5a6478;text-decoration:none;margin:0 12px;position:relative;
  transition:color .2s;white-space:nowrap;
}
.friendlink-a:not(:last-child)::after{
  content:'';position:absolute;right:-12px;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:#cfd6e2;
}
.friendlink-a:hover{color:var(--blue)}

/* ============ 底页 ============ */
.footer{background:linear-gradient(180deg,#0c1838 0%,#070f24 100%);color:rgba(255,255,255,.7)}
.footer-main{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px;
  padding:40px 0 32px;
}
.footer-en-brand{
  flex:1 1 100%;font-size:13px;font-weight:600;letter-spacing:4px;
  color:rgba(255,255,255,.5);text-transform:uppercase;
}
.footer-logo{height:46px;width:auto;flex-shrink:0}
.footer-nav{display:flex;flex-wrap:wrap;gap:0}
.footer-nav a{
  font-size:15px;color:rgba(255,255,255,.7);text-decoration:none;
  padding:0 36px;transition:color .25s;white-space:nowrap;
}
.footer-nav a:last-child{padding-right:0}
.footer-nav a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.5);line-height:1.8;margin:0}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:28px;bottom:28px;z-index:900;
  width:48px;height:48px;border-radius:50%;background:var(--blue);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;
  box-shadow:0 8px 22px rgba(10,89,218,.45);opacity:0;visibility:hidden;transform:translateY(14px);transition:.3s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--blue-dark);transform:translateY(-3px)}

/* ============ 响应式 平板 ============ */
@media (max-width:1100px){
  :root{--header-h:72px}
  .section{padding:70px 0}
  .banner{height:440px}
  .banner-title{font-size:40px}
  .banner-desc{font-size:18px}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:34px}
  .about-photo img{height:340px}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .section-title{font-size:32px}
}

/* ============ 响应式 手机 ============ */
@media (max-width:768px){
  :root{--header-h:64px}
  .section{padding:54px 0}
  .container{padding:0 16px}
  /* 导航变汉堡 */
  .nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:#fff;max-height:0;overflow:hidden;transition:max-height .35s ease;
    box-shadow:0 12px 30px rgba(20,50,110,.12);
  }
  .nav.open{max-height:480px}
  .nav-list{flex-direction:column;gap:0;padding:10px 0}
  .nav-link{padding:14px 24px;font-size:16px;border-radius:0}
  .nav-link::after{display:none}
  .nav-link{border-left:3px solid transparent}
  .nav-link:hover,.nav-link.active{border-left-color:var(--blue);background:var(--blue-soft)}
  .header-contact{display:none}
  .nav-toggle{display:flex}
  .logo img{height:30px}
  .header.scrolled .logo img {
    height: 30px;
}

  .banner{height:380px}
  .banner-title{font-size:28px;letter-spacing:1px;white-space:normal}
  .banner-desc{font-size:15px;margin-top:12px;white-space:normal}
  .banner-btns{margin-top:22px;flex-wrap:wrap}
  .btn{padding:11px 26px;font-size:15px}
  .banner-arrow{width:40px;height:40px;font-size:26px}
  .banner-prev{left:12px}.banner-next{right:12px}

  .section-title{font-size:26px}
  .section-head{margin-bottom:36px}
  .about-title{font-size:28px}
  .about-en{font-size:16px;letter-spacing:1px}
  .about-sep{margin:0 10px}
  .more-link{font-size:13px;padding-bottom:0}
  .about-stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .product-grid{grid-template-columns:1fr}
  .adv-grid{grid-template-columns:1fr}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .timeline{padding-left:30px}
  .timeline-item{gap:18px}
  .timeline-node{left:-30px;width:34px;height:34px;font-size:13px}
  .timeline-content{padding:20px 20px}
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
 .case-card .case-body {
    padding: 22px 10px 24px;
}
 .case-card .case-body h3{
  font-size: 16px;
}

 .case-card .case-body p{
  font-size: 14px;
}


.case-card .case-link {
 font-size: 12px;
     
}
.case-card .case-tag {
    padding: 4px 10px;
    font-size: 12px;
}
.block-title .en{letter-spacing:1px;margin-left:2px}

.product-detail .pd-content table {min-width: auto;}

}

@media (max-width:480px){
  .banner-title{font-size:24px}
  .about-stats{grid-template-columns:1fr 1fr}
  .honor-grid{grid-template-columns:1fr}
}

/* ================================================================
   联系我们 · 位置与留言（对齐 htmls\sub-contact.html）
   左：公司位置（高德地图）　右：在线留言
   表单/地图行为由 /assets/js/suba/feedback.js 统一驱动
   ================================================================ */
.location-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.map-wrap{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.map-wrap .fb-map-box{height:520px;min-height:420px;flex:1}
.map-wrap .fb-map-branches{padding:16px 20px 20px}

.msg-form{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-row label .req{color:#e74c3c}
.form-row input,.form-row textarea{
  width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:6px;
  font-size:15px;color:var(--ink);background:var(--bg-soft);font-family:var(--font);
  outline:none;box-sizing:border-box;transition:.25s;
}
.form-row input:focus,.form-row textarea:focus{
  border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(10,89,218,.08);
}
.form-row textarea{resize:vertical;min-height:120px}
.form-row-half{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.captcha-row{display:flex;align-items:center;gap:12px}
.captcha-input{flex:1}
.captcha-img{
  width:130px;height:48px;border:1px solid var(--line);border-radius:6px;overflow:hidden;
  cursor:pointer;flex-shrink:0;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
}
.captcha-img img{width:100%;height:100%;object-fit:cover;display:block}
.captcha-refresh{
  width:44px;height:44px;border-radius:6px;border:1px solid var(--line);
  background:var(--bg-soft);display:flex;align-items:center;justify-content:center;
  cursor:pointer;flex-shrink:0;transition:.25s;
}
.captcha-refresh:hover{background:var(--blue-soft)}
.captcha-refresh svg{width:18px;height:18px;fill:var(--blue)}
.btn-submit{
  width:100%;padding:14px;border:none;border-radius:6px;background:var(--blue);color:#fff;
  font-size:16px;font-weight:600;letter-spacing:2px;cursor:pointer;font-family:var(--font);transition:.25s;
}
.btn-submit:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 8px 22px rgba(10,89,218,.28)}
.btn-submit:disabled{background:#a9bcd8;cursor:not-allowed;transform:none;box-shadow:none}

@media (max-width:900px){
  .location-grid{grid-template-columns:1fr}
  .form-row-half{grid-template-columns:1fr;gap:0}
  .map-wrap .fb-map-box{height:360px;min-height:300px}
}