/* =====================================================
   宁波市江北国力板式换热器厂 · 企业官网主题 guoli
   风格：工业 / 稳重 / 科技 / 高端 / 现代
   ===================================================== */

:root{
  --blue:#2f6b9e;
  --blue-deep:#1f4f7a;
  --blue-dark:#14385a;
  --blue-light:#eaf1f8;
  --blue-mist:#f4f8fb;
  --ink:#1c2733;
  --ink-soft:#4a5568;
  --ink-mute:#7a8699;
  --line:#e6ecf2;
  --white:#fff;
  --shadow-sm:0 1px 3px rgba(20,45,80,.06);
  --shadow-md:0 10px 30px rgba(20,45,80,.10);
  --shadow-lg:0 24px 60px rgba(20,45,80,.14);
  --radius:10px;
  --radius-lg:16px;
  --maxw:1200px;
  --nav-h:76px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section.tint{background:var(--blue-mist)}

/* 区块标题 */
.sec-head{text-align:center;max-width:760px;margin:0 auto 50px}
.sec-head .kicker{display:inline-block;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--blue);margin-bottom:12px;font-weight:600}
.sec-head h2{font-size:34px;font-weight:700;letter-spacing:.5px;color:var(--ink);line-height:1.3}
.sec-head p{color:var(--ink-soft);margin-top:14px;font-size:16px}
.sec-head .bar{width:52px;height:3px;background:var(--blue);border-radius:2px;margin:18px auto 0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:40px;font-size:15px;font-weight:600;transition:.25s;line-height:1}
.btn-primary{background:var(--blue);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-ghost:hover{background:var(--blue);color:#fff}
.btn-white{background:#fff;color:var(--blue-deep)}
.btn-white:hover{background:var(--blue-light)}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;height:var(--nav-h);gap:30px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand .logo-img{height:54px;width:auto;max-width:200px;object-fit:contain;display:block}
.brand .logo-mark{width:42px;height:42px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;letter-spacing:-1px;flex-shrink:0}
.brand .brand-text{line-height:1.2}
.brand .brand-text strong{display:block;font-size:16px;color:var(--ink);letter-spacing:.3px}
.brand .brand-text span{font-size:11px;color:var(--ink-mute);letter-spacing:1px}

.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav>li{position:relative;flex-shrink:0}
.nav>li>a{display:block;padding:9px 12px;font-size:14.5px;white-space:nowrap;color:var(--ink-soft);border-radius:8px;transition:.2s}
.nav>li>a:hover,.nav>li.active>a{color:var(--blue);font-weight:600}
.nav>li>a .caret{font-size:10px;margin-left:3px;color:var(--ink-mute)}
/* 二级菜单 */
.nav .sub{position:absolute;top:100%;left:0;min-width:180px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s;z-index:50}
.nav>li:hover .sub{opacity:1;visibility:visible;transform:translateY(0)}
.nav .sub a{display:block;padding:9px 14px;font-size:14px;color:var(--ink-soft);border-radius:7px;transition:.15s}
.nav .sub a:hover{color:var(--blue);background:var(--blue-light)}
.nav .sub .sub-sub{padding-left:10px;border-left:2px solid var(--line);margin:4px 0 4px 6px}
.nav .sub .sub-sub a{font-size:13.5px;color:var(--ink-mute)}
.nav .sub .sub-sub a:hover{color:var(--blue)}

.header-tel{display:flex;align-items:center;gap:9px;flex-shrink:0;color:var(--ink);border-left:1px solid var(--line);padding-left:22px}
.header-tel .ico{width:40px;height:40px;border-radius:50%;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:18px}
.header-tel .tel-num{font-weight:700;font-size:15px;color:var(--blue-deep);line-height:1.1}
.header-tel .tel-label{font-size:12px;color:var(--ink-mute)}

.lang-switch{flex-shrink:0}
.lang-switch a{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:20px;font-size:13px;color:var(--ink-soft);transition:.2s}
.lang-switch a:hover{color:var(--blue);border-color:var(--blue)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:9px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line)}
.nav-toggle span{width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 首页 Banner ============ */
.hero{position:relative;height:min(76vh,620px);min-height:500px;overflow:hidden;background:#0c1826}
.hero .slides{position:absolute;inset:0}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease;z-index:1}
.hero .slide.active{opacity:1;z-index:2}
.hero .slide img{width:100%;height:100%;object-fit:cover;object-position:50% 50%}
/* 桌面/平板：第1、3张主体偏向右侧；第2张与其他张相同，全幅 cover 展示 */
@media (min-width:561px){
  .hero .slide:nth-child(1) img{object-position:50% 50%}
  .hero .slide:nth-child(3) img{object-position:62% 50%}
}
.hero .slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,26,44,.78) 0%,rgba(10,26,44,.46) 42%,rgba(10,26,44,0) 72%)}
.hero .cap{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:3;color:#fff}
.hero .cap h1{font-size:clamp(30px,4.4vw,54px);font-weight:800;letter-spacing:1px;line-height:1.22;max-width:14em;text-shadow:0 2px 24px rgba(0,0,0,.25)}
.hero .cap p{margin-top:20px;font-size:clamp(15px,1.7vw,19px);color:rgba(255,255,255,.92);max-width:40em;text-shadow:0 1px 12px rgba(0,0,0,.4)}
.hero .tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.hero .tags span{padding:8px 16px;border-radius:30px;font-size:14px;color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28)}
.hero .cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero .dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:4;display:flex;gap:10px}
.hero .dots button{width:34px;height:4px;border-radius:2px;background:rgba(255,255,255,.35);transition:.3s}
.hero .dots button.active{background:#fff;width:52px}
.hero .arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.16);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;transition:.25s;border:1px solid rgba(255,255,255,.25)}
.hero .arrow:hover{background:rgba(255,255,255,.3)}
.hero .arrow.prev{left:22px}
.hero .arrow.next{right:22px}

/* ============ 企业简介 + 视频 ============ */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.intro-media{position:relative;cursor:pointer}
.intro-media img{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.intro-media .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.intro-media .play span{width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.94);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:26px;padding-left:4px;box-shadow:var(--shadow-lg);transition:.25s}
.intro-media .play:hover span{transform:scale(1.08)}
.intro-body .en{color:var(--blue);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;font-weight:600}
.intro-body h2{font-size:30px;font-weight:700;color:var(--ink);line-height:1.3}
.intro-body p{color:var(--ink-soft);margin-top:16px}
.intro-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.intro-stats .stat{border-left:3px solid var(--blue);padding-left:14px}
.intro-stats .stat b{font-size:28px;font-weight:800;color:var(--blue-deep);display:block;line-height:1}
.intro-stats .stat span{font-size:13px;color:var(--ink-mute)}

/* ============ 产品 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.3s;display:block}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.prod-card .thumb{display:block;aspect-ratio:1/1;overflow:hidden;background:#f5f8fb}
.prod-card .thumb img{width:100%;height:100%;object-fit:contain;padding:10px;transition:transform .5s}
.prod-card:hover .thumb img{transform:scale(1.06)}
.prod-card .info{display:block;padding:18px 20px 20px}
.prod-card .info h3{font-size:17px;font-weight:700;color:var(--ink)}
.prod-card .info p{font-size:13.5px;color:var(--ink-mute);margin-top:6px}
.prod-grid .more{background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;border-radius:var(--radius-lg);min-height:100%;text-align:center;transition:.3s}
.prod-grid .more:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.prod-grid .more .plus{font-size:40px;font-weight:300;line-height:1}
.prod-grid .more span{font-size:17px;font-weight:600}

/* ============ 优势（图文交错） ============ */
.adv-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.adv-row+.adv-row{margin-top:76px}
.adv-media{position:relative}
.adv-media img{border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.adv-media .idx{position:absolute;top:-22px;left:-22px;width:64px;height:64px;border-radius:14px;background:var(--blue);color:#fff;font-size:24px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md)}
.adv-body .en{color:var(--blue);font-size:13px;letter-spacing:2px;text-transform:uppercase;font-weight:600}
.adv-body h3{font-size:26px;font-weight:700;color:var(--ink);margin-top:8px}
.adv-body p{color:var(--ink-soft);margin-top:16px}
.adv-body ul{margin-top:18px}
.adv-body ul li{position:relative;padding-left:22px;color:var(--ink-soft);margin-top:9px}
.adv-body ul li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--blue)}
.adv-row.rev .adv-media{order:2}
.adv-row.rev .adv-body{order:1}
.adv-row.rev .adv-media .idx{left:auto;right:-22px}

/* ============ 解决方案 / 案例 ============ */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.3s}
.sol-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.sol-card .thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#f5f8fb}
.sol-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.sol-card:hover .thumb img{transform:scale(1.06)}
.sol-card .info{display:block;padding:24px}
.sol-card .info h3{font-size:18px;font-weight:700;color:var(--ink)}
.sol-card .info p{font-size:14.5px;color:var(--ink-soft);margin-top:10px}
/* 首页解决方案区：白底示意图 contain 展示（不裁切） */
.sol-card .thumb.fit{background:#fff}
.sol-card .thumb.fit img{object-fit:contain}

/* ============ 解决方案列表（左文右图紧凑卡：编号+标题+描述 | 小示意图） ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:plan}
.plan-card{display:grid;grid-template-columns:1fr 150px;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;transition:.3s}
.plan-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.plan-main{min-width:0}
.plan-top{display:flex;align-items:center;gap:12px}
.plan-num{font-size:28px;font-weight:800;line-height:1;color:var(--blue);letter-spacing:1px}
.plan-num::before{counter-increment:plan;content:counter(plan,decimal-leading-zero)}
.plan-bar{width:36px;height:3px;background:var(--blue);border-radius:2px;flex:1;max-width:48px;opacity:.35}
.plan-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-top:12px;line-height:1.45}
.plan-card p{font-size:13.5px;color:var(--ink-soft);margin-top:8px;line-height:1.8}
.plan-card:hover h3{color:var(--blue-deep)}
/* 卡片示意图：白底插画完整展示，右侧小图 */
.plan-thumb{display:flex;align-items:center;justify-content:center;height:118px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.plan-thumb img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;transition:transform .5s}
.plan-card:hover .plan-thumb img{transform:scale(1.05)}

/* ============ 客户案例列表（左文右图：标题+副题+需求 | 照片+查看详情按钮） ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{display:grid;grid-template-columns:1fr 42%;gap:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;transition:.3s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.case-body{display:flex;flex-direction:column;min-width:0}
.case-body h3{font-size:18px;font-weight:700;color:var(--ink);line-height:1.5}
.case-card:hover .case-body h3{color:var(--blue-deep)}
.case-sub{font-style:normal;font-size:13px;font-weight:600;color:var(--blue);letter-spacing:.3px;margin-top:8px}
.case-body p{font-size:13.5px;color:var(--ink-soft);margin-top:14px;line-height:1.9}
.case-side{display:flex;flex-direction:column;min-width:0}
.case-thumb{display:block;height:172px;overflow:hidden;border-radius:10px;background:#f0f4f8}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-thumb img{transform:scale(1.06)}
.case-more{display:inline-flex;align-items:center;justify-content:center;margin-top:14px;padding:9px 0;border-radius:6px;background:var(--blue);color:#fff;font-size:13.5px;font-weight:600;transition:.25s}
.case-more::after{content:"→";margin-left:7px;transition:transform .25s}
.case-card:hover .case-more{background:var(--blue-deep)}
.case-card:hover .case-more::after{transform:translateX(4px)}
.case-detail-sub{font-size:15px;font-weight:600;color:var(--blue);margin:-10px 0 22px;letter-spacing:.3px}

/* ============ 关于我们（三照片横排 + 资质三卡） ============ */
.about-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.aph{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.aph img{width:100%;height:260px;object-fit:cover;transition:transform .5s}
.aph:hover img{transform:scale(1.04)}
.aph figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 18px 12px;background:linear-gradient(transparent,rgba(10,24,40,.72));color:#fff;font-size:14.5px;font-weight:600;letter-spacing:1px}
.about-creds{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cred-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;transition:.3s}
.cred-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.cred-thumb{display:flex;align-items:center;justify-content:center;height:190px;background:#f5f8fb;border-radius:10px;overflow:hidden}
.cred-thumb img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;transition:transform .5s}
.cred-card:hover .cred-thumb img{transform:scale(1.05)}
.cred-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-top:16px}
.cred-card p{font-size:13.5px;color:var(--ink-soft);margin-top:8px;line-height:1.8}

/* banner 副文案（关于我们：国力是一个品牌，更是一种文化） */
.pb-slogan{color:rgba(255,255,255,.88);font-size:15.5px;letter-spacing:2px;margin-top:10px;font-weight:500}

/* 公司全景图+生产车间（左右两图区，Excel B13/K13） */
.reality-zone{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.rz-col h3{font-size:19px;font-weight:700;color:var(--ink);border-left:4px solid var(--blue);padding-left:12px;margin-bottom:18px;letter-spacing:.5px}
.rz-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rz-photos img{width:100%;height:145px;object-fit:cover;border-radius:10px;transition:transform .5s}
.rz-col:hover .rz-photos img{transform:scale(1.03)}

/* 资质荣誉（纯文字排版，按 Excel 原文） */
.qual-text{background:var(--blue-mist);border-radius:var(--radius-lg);padding:34px 40px}
.qual-text p{font-size:15px;color:var(--ink-soft);line-height:2;margin:13px 0;text-align:justify}
.qual-text p strong{color:var(--ink);font-weight:700}
.qual-text .qt-lead{text-align:center;font-size:15.5px;color:var(--ink-soft);margin:0 0 22px;padding-bottom:18px;border-bottom:1px dashed #d4dfea}

/* 生产车间图组 */
.workshop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.wsh{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.wsh img{width:100%;height:250px;object-fit:cover;transition:transform .5s}
.wsh:hover img{transform:scale(1.04)}

/* 关于我们·合作伙伴（参考整图） */
.partner-wall{display:block;width:100%;max-width:1100px;margin:0 auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}

/* 关于我们页底部联系信息（页面最下面，非页脚） */
.about-contact{background:var(--blue-mist);border-top:3px solid var(--blue);padding:42px 0 48px}
.ac-brand{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:1.5px;margin-bottom:16px}
.ac-lines p{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--ink-soft);line-height:2.1}
.ac-ico{font-size:16px;flex-shrink:0}

/* ============ 合作伙伴轮播 ============ */
.p-carousel{display:flex;align-items:center;gap:16px}
.p-viewport{flex:1;overflow:hidden}
.p-track{display:flex;gap:24px;--pview:4;transition:transform .55s ease;will-change:transform}
.p-track .item{flex:0 0 calc((100% - (var(--pview) - 1) * 24px) / var(--pview));height:110px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;padding:16px;box-shadow:var(--shadow-sm)}
.p-track .item img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.p-arrow{flex-shrink:0;width:42px;height:42px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--ink-soft);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);transition:.2s}
.p-arrow:hover{color:var(--blue);border-color:var(--blue);transform:translateY(-1px)}
@media (max-width:1080px){.p-track{--pview:3}}
@media (max-width:760px){.p-track{--pview:2}}
@media (max-width:480px){.p-track{--pview:1.2}}

/* ============ 新闻中心列表（左图右文横排条目） ============ */
.news-cards{display:flex;flex-direction:column;gap:24px}
.news-card{display:grid;grid-template-columns:300px 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.3s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.news-thumb{display:block;min-height:190px;background:#f5f8fb;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-info{display:flex;flex-direction:column;padding:24px 28px 22px 26px;min-width:0}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-date{font-size:13px;color:var(--ink-mute);font-weight:600;letter-spacing:.5px}
.news-tag{font-style:normal;font-size:12px;font-weight:600;color:var(--blue);background:var(--blue-light);padding:3px 12px;border-radius:20px}
.news-info h3{font-size:19px;font-weight:700;color:var(--ink);margin-top:10px;line-height:1.5}
.news-card:hover .news-info h3{color:var(--blue-deep)}
.news-info p{font-size:14px;color:var(--ink-soft);margin-top:10px;line-height:1.85;flex:1}
.news-more{display:inline-flex;align-items:center;align-self:flex-start;margin-top:14px;color:var(--blue);font-size:13.5px;font-weight:600;transition:.2s}
.news-more::after{content:"→";margin-left:6px;transition:transform .25s}
.news-card:hover .news-more{color:var(--blue-deep)}
.news-card:hover .news-more::after{transform:translateX(4px)}

/* ============ 新闻（首页条目） ============ */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.news-item{display:flex;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
.news-item .date{flex-shrink:0;width:64px;text-align:center}
.news-item .date b{display:block;font-size:26px;font-weight:800;color:var(--blue);line-height:1}
.news-item .date span{font-size:12px;color:var(--ink-mute)}
.news-item h3{font-size:16px;font-weight:600;color:var(--ink);transition:.2s}
.news-item:hover h3{color:var(--blue)}
.news-item p{font-size:13.5px;color:var(--ink-mute);margin-top:4px}

/* ============ 联系我们（在线预约 + 联系方式） ============ */
.contact-zone{display:grid;grid-template-columns:1.08fr .92fr;gap:32px;align-items:stretch}
.booking-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);min-height:540px;display:flex}
.bk-form{width:100%;padding:46px 42px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.bk-form h3{font-size:26px;font-weight:700;letter-spacing:1px;color:var(--ink)}
.bk-form .bk-sub{font-size:14px;color:var(--ink-mute);margin-top:-6px}
.bk-form input,.bk-form textarea{width:100%;padding:13px 16px;border-radius:9px;border:1px solid var(--line);background:var(--blue-mist);color:var(--ink);font-size:15px;font-family:inherit;line-height:1.6;outline:none;transition:.2s}
.bk-form input::placeholder,.bk-form textarea::placeholder{color:var(--ink-mute)}
.bk-form input:focus,.bk-form textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(47,107,158,.12)}
.bk-form textarea{resize:vertical;min-height:96px}
.bk-submit{margin-top:10px;padding:14px 32px;border-radius:40px;background:var(--blue);color:#fff;font-size:15px;font-weight:700;font-family:inherit;cursor:pointer;transition:.25s;align-self:flex-start}
.bk-submit:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.bk-submit:disabled{opacity:.65;cursor:default;transform:none}
.contact-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:38px 40px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.cp-row{display:flex;gap:16px;align-items:flex-start;padding:13px 0;border-bottom:1px dashed var(--line)}
.cp-row:last-child{border-bottom:none}
.cp-row .ico{flex-shrink:0;width:40px;height:40px;border-radius:50%;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:17px}
.cp-row h4{font-size:13px;color:var(--ink-mute);font-weight:500}
.cp-row p{font-size:15.5px;font-weight:600;color:var(--ink);margin-top:2px;word-break:break-all}
.qrcodes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:auto;padding-top:28px}
.qr{text-align:center}
.qr img{width:100%;max-width:118px;aspect-ratio:1/1;object-fit:contain;border:1px solid var(--line);border-radius:10px;padding:7px;background:#fff;margin:0 auto;transition:.25s}
.qr:hover img{border-color:var(--blue);box-shadow:var(--shadow-md)}
.qr span{display:block;font-size:13px;color:var(--ink-soft);margin-top:9px}

/* ============ 内页 ============ */
.page-banner{position:relative;height:300px;overflow:hidden;background:#0c1826}
.page-banner img{width:100%;height:100%;object-fit:cover}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,26,44,.72) 0%,rgba(10,26,44,.42) 42%,rgba(10,26,44,0) 72%)}
.page-banner .container{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;z-index:2}
.page-banner h1{color:#fff;font-size:clamp(26px,3.4vw,40px);font-weight:800;letter-spacing:1px}
.page-banner .crumb{color:rgba(255,255,255,.82);font-size:14px;margin-top:12px}
.page-banner .crumb a{color:rgba(255,255,255,.82)}
.page-banner .crumb a:hover{color:#fff}

/* 内页 banner 品牌标识（公司名，logo 与导航栏重复故不放） */
.pb-name{color:#fff;font-size:clamp(22px,2.8vw,32px);font-weight:800;letter-spacing:1px;line-height:1.25}
.pb-name small{display:block;font-size:11.5px;font-weight:500;letter-spacing:2px;color:rgba(255,255,255,.72);margin-top:5px}
@media (max-width:560px){.pb-name{font-size:17px;letter-spacing:.5px}.pb-name small{font-size:9.5px;letter-spacing:1px}}

/* 列表/详情通用 */
.article-body{color:var(--ink-soft);line-height:1.9;font-size:16px}
.article-body img{display:block;border-radius:var(--radius);margin:16px auto;max-width:620px;width:100%;height:auto}
.article-body h1,.article-body h2,.article-body h3{color:var(--ink);margin:20px 0 10px}
.article-body p{margin:12px 0}
/* 详情页配图（示意图白底与页面融合 / 现场照片圆角展示） */
.detail-figure{margin:0 0 20px;text-align:center}
.detail-figure img{max-width:560px;width:100%;height:auto;margin:0 auto;border-radius:var(--radius-lg)}

/* 产品详情 */
.product-head{display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:start}
.product-media{background:#f5f8fb;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;min-height:220px}
.product-media img{width:100%;height:auto;display:block}
/* 产品详情图轮播：多图(pics)时轮播，单图/无多图数据时静态显示 ico，均不轮播 */
.pm-carousel{display:none;position:relative}
.pm-carousel.on{display:grid}
.pm-slide{grid-area:1/1;opacity:0;transition:opacity .55s ease;pointer-events:none}
.pm-slide.active{opacity:1;pointer-events:auto}
.pm-slide img,.pm-fallback img{width:100%;height:auto;display:block}
.pm-fallback{display:none}
.pm-fallback.on{display:block}
.pm-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--blue-deep);font-size:17px;line-height:1;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);transition:.2s}
.pm-arrow:hover{background:#fff;box-shadow:var(--shadow-md);color:var(--blue)}
.pm-arrow.prev{left:8px}
.pm-arrow.next{right:8px}
.pm-dots{position:absolute;left:0;right:0;bottom:10px;z-index:5;display:flex;justify-content:center;gap:8px}
.pm-dots button{width:22px;height:4px;border-radius:2px;background:rgba(20,45,80,.22);transition:.3s}
.pm-dots button.active{background:var(--blue);width:32px}
.product-intro h1{font-size:28px;font-weight:700;color:var(--ink)}
.product-intro .meta{color:var(--ink-mute);margin-top:8px;font-size:14px}
.param-section{margin-top:44px}
.param-section h2{font-size:20px;font-weight:700;color:var(--ink);border-left:4px solid var(--blue);padding-left:12px;margin-bottom:18px}
.param-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.param-table th,.param-table td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:15px}
.param-table th{background:#f5f8fb;color:var(--ink);font-weight:600;width:45%}
.param-table td{color:var(--ink-soft)}
.param-table tr:last-child th,.param-table tr:last-child td{border-bottom:none}

/* ============ Footer ============ */
.site-footer{background:var(--blue-dark);color:rgba(255,255,255,.78);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text span{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);margin-top:18px;max-width:30em}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col a{display:block;color:rgba(255,255,255,.65);font-size:14.5px;padding:5px 0;transition:.2s}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-col .line{font-size:14.5px;color:rgba(255,255,255,.7);padding:4px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:rgba(255,255,255,.5);text-align:center}

/* 视频弹层 */
.video-modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center}
.video-modal .vm-bg{position:absolute;inset:0;background:rgba(10,20,34,.82)}
.video-modal .vm-box{position:relative;z-index:1;width:min(900px,92vw)}
.video-modal .vm-box video{width:100%;border-radius:12px;box-shadow:var(--shadow-lg)}
.video-modal .vm-close{position:absolute;top:-40px;right:0;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.2);color:#fff;font-size:22px;line-height:1}

/* ============ 分页 ============ */
.pagebar{display:flex;flex-direction:column;align-items:center;gap:16px;margin-top:48px;padding-top:36px;border-top:1px solid var(--line)}
.pagebar-total{font-size:13.5px;color:var(--ink-mute)}
.pagebar-nav{display:flex;align-items:center;gap:10px}
.pagebar-nav a.pagebar-prev,.pagebar-nav a.pagebar-next{min-width:40px;height:40px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #d3dae2;border-radius:8px;font-size:14px;color:var(--ink-soft);background:#fff;transition:.2s}
.pagebar-nav a.pagebar-prev:hover,.pagebar-nav a.pagebar-next:hover{border-color:var(--blue);color:var(--blue)}
.pagebar-nav a[href="javascript:;"]{opacity:.4;pointer-events:none}
.pagebar-nums{display:flex;align-items:center;gap:10px}
.pagebar-nums a.page-num,.pagebar-nums span.page-num{min-width:40px;height:40px;padding:0 4px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;font-size:14px;color:var(--ink-soft)}
.pagebar-nums a.page-num{border:1px solid #d3dae2;background:#fff}
.pagebar-nums a.page-num:hover{border-color:var(--blue);color:var(--blue)}
.pagebar-nums a.page-num-current{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}
.pagebar-nums span.page-num{color:var(--ink-mute);border:none;min-width:16px}
.pagebar-mobile{display:none;align-items:center;gap:20px}
.pagebar-mobile a{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #d3dae2;border-radius:8px;font-size:18px;color:var(--ink-soft)}
.pagebar-mobile a[href="javascript:;"]{opacity:.4;pointer-events:none}
.pagebar-mobile span{font-size:14px;color:var(--ink-mute);font-weight:600}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .sol-grid{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .plan-card{grid-template-columns:1fr}
  .plan-thumb{height:170px;order:-1}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .case-card{grid-template-columns:1fr}
  .case-thumb{height:180px}
  .news-card{grid-template-columns:240px 1fr}
  .news-thumb{min-height:160px}
  .about-photos{grid-template-columns:1fr}
  .aph img{height:220px}
  .about-creds{grid-template-columns:repeat(2,1fr)}
  .workshop-grid{grid-template-columns:1fr}
  .wsh img{height:220px}
  .reality-zone{grid-template-columns:1fr;gap:36px}
  .qual-text{padding:26px 24px}
}
@media (max-width:1240px){
  .product-head{grid-template-columns:1fr}
  .nav-toggle{display:flex}
  .nav{position:fixed;top:var(--nav-h);left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);transform:translateY(-140%);transition:.35s;z-index:99;max-height:80vh;overflow-y:auto;margin-left:0}
  .nav.open{transform:translateY(0)}
  .nav>li>a{padding:13px 12px;border-bottom:1px solid var(--line)}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 8px 16px;display:none}
  .nav>li.open .sub{display:block}
  .nav>li>a .caret{float:right}
  .header-tel{display:none}
  .brand .logo-img{height:44px}
  .contact-zone{grid-template-columns:1fr;gap:26px}
  .booking-panel{min-height:480px}
  .bk-form{padding:40px 34px}
  .hero{height:66vh;min-height:460px}
  .intro-grid,.adv-row{grid-template-columns:1fr;gap:36px}
  .adv-row.rev .adv-media{order:1}
  .adv-row.rev .adv-body{order:2}
  .news-list{grid-template-columns:1fr}
}
@media (max-width:560px){
  .section{padding:60px 0}
  .sec-head h2{font-size:27px}
  .prod-grid,.sol-grid{grid-template-columns:1fr 1fr}
  .plan-grid{grid-template-columns:1fr}
  .plan-thumb{height:150px}
  .case-grid{grid-template-columns:1fr}
  .case-thumb{height:170px}
  .news-card{grid-template-columns:1fr}
  .news-thumb{min-height:0;height:180px}
  .about-creds{grid-template-columns:1fr}
  .aph img{height:190px}
  .partner-wall{border-radius:var(--radius)}
  .rz-photos{gap:8px}
  .rz-photos img{height:104px}
  .rz-col h3{font-size:17px}
  .ac-brand{font-size:16.5px;letter-spacing:1px}
  .brand .logo-img{height:38px}
  .bk-form{padding:32px 24px}
  .bk-form h3{font-size:22px}
  .bk-submit{align-self:stretch;text-align:center}
  .contact-panel{padding:26px 22px}
  .qrcodes{gap:12px;padding-top:22px}
  .qr img{max-width:96px;padding:5px}
  .qr span{font-size:12px}
  .intro-stats{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .hero{height:auto;min-height:0;aspect-ratio:4/3}
  .hero .arrow{display:none}
  .pagebar{justify-content:center;text-align:center}
  .pagebar-total,.pagebar-nav{display:none}
  .pagebar-mobile{display:flex}
  /* 首页 Banner 手机端 v3(2026-09-13):用 4:3 手机专用图(picture 标签自动切换),文字叠图与电脑一致 */
  .hero .slide img{object-position:50% 50%}
  .hero .cap h1{font-size:24px;max-width:100%}
  .hero .cap p{margin-top:10px;font-size:13px;max-width:100%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .hero .tags{display:none}
  .hero .cta{margin-top:16px}
  .hero .cta .btn{padding:9px 20px;font-size:13.5px}
  .hero .dots{bottom:12px}
  /* 板块页 Banner 手机端:4:3 竖版(手机图未传时自动裁切电脑图) */
  .page-banner{height:auto;aspect-ratio:4/3}
  .page-banner img{object-position:50% 50%}
}
@media (max-width:400px){
  .prod-grid,.sol-grid{grid-template-columns:1fr}
}

/* 产品详情页社交分享 */
.gx-share{margin-top:22px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.gx-share-label{font-size:14px;color:var(--ink-mute)}
.gx-sh{width:32px;height:32px;border-radius:8px;background:#f0f3f7;color:#43506b;display:inline-flex;align-items:center;justify-content:center;transition:.2s}
.gx-sh:hover{transform:translateY(-2px);color:#fff}
.gx-sh.fb:hover{background:#1877f2}
.gx-sh.tw:hover{background:#0f1419}
.gx-sh.wa:hover{background:#25d366}
.gx-sh.li:hover{background:#0a66c2}
.gx-sh.rd:hover{background:#ff4500}
.gx-sh.pi:hover{background:#e60023}