:root{
    --amber:#92400e;       /* 深琥珀（品牌主色） */
    --amber-soft:#b45309;
    --blue:#0369a1;        /* 蓝（链接/强调） */
    --navy:#0f2138;        /* 深蓝（深色分区/页脚） */
    --ink:#1f2937;
    --muted:#5c6578;       /* 说明字 */
    --bg:#ffffff;
    --bg-alt:#f7f5f2;
    --line:#e7e2db;
    --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
img{max-width:100%}

/* 顶部信息条 */
.topbar{background:var(--navy);color:#c8d4e4;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:16px;flex-wrap:wrap}
.topbar-note{opacity:.85}
.topbar-phone{display:flex;align-items:center;gap:8px;font-weight:700;color:#fff;white-space:nowrap}
.topbar-phone b{color:#fbbf24;font-size:16px;letter-spacing:.5px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(0,0,0,.02)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:96px;gap:20px}
.brand{display:flex;align-items:center;flex-shrink:1;min-width:0;line-height:0}
.brand-logo{display:block;max-height:72px;width:auto;max-width:360px}
.main-nav{display:flex;gap:36px;flex:1;justify-content:center}
.main-nav a{font-size:16px;color:var(--ink);font-weight:600;padding:10px 0;border-bottom:2px solid transparent;transition:color .15s}
.main-nav a:hover,.main-nav a.on{color:var(--amber);border-color:var(--amber)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{font-size:14px;color:var(--blue);font-weight:600}
.btn-quote{background:var(--amber);color:#fff;padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600}
.btn-quote:hover{background:var(--amber-soft)}
.nav-toggle{display:none;background:none;border:none;width:44px;height:44px;font-size:0;color:transparent;cursor:pointer;padding:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 24 24'%3E%3Cg stroke='%2392400e' stroke-width='2.2' stroke-linecap='round'%3E%3Cline x1='3' y1='6' x2='21' y2='6'/%3E%3Cline x1='3' y1='12' x2='21' y2='12'/%3E%3Cline x1='3' y1='18' x2='21' y2='18'/%3E%3C/g%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:28px 28px}
.lang-select{font-size:14px;color:var(--blue);font-weight:600;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 10px;cursor:pointer;max-width:150px}
.lang-select:focus{outline:none;border-color:var(--blue)}

/* Hero（全宽大图轮播 · 大气） */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--navy);min-height:clamp(480px,68vh,680px);display:flex;align-items:center;padding:90px 0}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:50% 50%;opacity:0;animation:heroFade 20s infinite}
.hero-slide:nth-child(1){animation-delay:0s}
.hero-slide:nth-child(2){animation-delay:5s}
.hero-slide:nth-child(3){animation-delay:10s}
.hero-slide:nth-child(4){animation-delay:15s}
@keyframes heroFade{0%{opacity:0}5%{opacity:1}25%{opacity:1}30%{opacity:0}100%{opacity:0}}
.hero-slides:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,33,56,.9) 8%,rgba(15,33,56,.62) 52%,rgba(15,33,56,.3))}
.hero-inner{position:relative;z-index:1;width:100%}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:#fbbf24;font-weight:700;margin-bottom:18px}
.hero-eyebrow:before,.hero-eyebrow:after{content:"";width:34px;height:1.5px;background:#fbbf24;opacity:.8}
.hero h1{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:1px;margin-bottom:16px;max-width:760px;text-shadow:0 2px 18px rgba(0,0,0,.35)}
.hero-sub{font-size:19px;opacity:.94;max-width:640px;line-height:1.8}
.hero-cta{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap}
.btn-primary{display:inline-block;background:var(--amber);color:#fff;padding:13px 30px;border-radius:999px;font-weight:700;letter-spacing:.5px;transition:background .15s,transform .15s}
.btn-primary:hover{background:var(--amber-soft);transform:translateY(-1px)}
.btn-ghost{display:inline-block;border:1.5px solid rgba(255,255,255,.75);color:#fff;padding:12px 28px;border-radius:999px;font-weight:600;transition:background .15s}
.btn-ghost:hover{background:rgba(255,255,255,.14)}

/* 居中栏目标题（eyebrow + 大标题 + 两侧装饰线） */
.sec-head{text-align:center;margin-bottom:40px}
.sec-head .eyebrow{display:block;font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--blue);font-weight:700;margin-bottom:8px}
.sec-head h2{display:inline-block;position:relative;font-size:34px;font-weight:800;color:var(--ink);line-height:1.3;padding:0 92px;vertical-align:middle}
.sec-head h2:before,.sec-head h2:after{content:"";position:absolute;top:50%;width:64px;height:2px;background:var(--amber);opacity:.55;margin-top:-1px}
.sec-head h2:before{left:0}
.sec-head h2:after{right:0}
.sec-head .sec-sub{display:block;margin-top:10px;color:var(--muted);font-size:15px;text-align:center}
.on-dark .sec-head .eyebrow{color:#fbbf24}
.on-dark .sec-head h2{color:#fff}
.on-dark .sec-head h2:before,.on-dark .sec-head h2:after{background:#fbbf24;opacity:.7}
.on-dark .sec-head .sec-sub{color:rgba(255,255,255,.72)}

/* Sections */
.section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.section-title{font-size:26px;font-weight:800;margin-bottom:26px;color:var(--ink);position:relative;padding-left:14px}
.section-title:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;background:var(--amber);border-radius:3px}
.page-h1{font-size:30px;font-weight:800;margin-bottom:14px}
.tag{display:inline-block;background:#f0e6db;color:var(--amber);font-size:12px;padding:2px 10px;border-radius:999px;margin-bottom:8px}

/* Card grid */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(15,33,56,.1)}
.card-media{height:170px;background:#f6f7f9;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.card-media img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;display:block}
.card-body{padding:18px 20px 20px}
.card-body h3{font-size:17px;margin-bottom:6px}
.card-body p{color:var(--muted);font-size:14px;min-height:42px}
.more{display:inline-block;margin-top:8px;color:var(--blue);font-size:14px;font-weight:600}

/* Advantages（深色整屏分区 · 图标网格） */
.section-dark{background:linear-gradient(160deg,#0f2138 0%,#132c4a 60%,#123152 100%);color:#fff}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.section-dark .adv{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:28px 22px;text-align:center;transition:transform .18s,background .18s}
.section-dark .adv:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.adv-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:50%;background:rgba(251,191,36,.15);border:1px solid rgba(251,191,36,.35);display:flex;align-items:center;justify-content:center}
.adv-icon:before{content:"";width:26px;height:26px;background:#fbbf24;mask-size:contain;mask-repeat:no-repeat;mask-position:center;-webkit-mask-size:contain;-webkit-mask-repeat:no-repeat;-webkit-mask-position:center}
.adv-icon-shield:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm0 10.99h7c-.53 4.12-3.28 7.79-7 8.94V12H5V6.3l7-3.11v8.8z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm0 10.99h7c-.53 4.12-3.28 7.79-7 8.94V12H5V6.3l7-3.11v8.8z'/%3E%3C/svg%3E")}
.adv-icon-flask:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 3L7 5v4c0 2.2 1.8 4 4 4s4-1.8 4-4V5l-2-2H9zm3 12.7V19H8v2h8v-2h-4v-3.3c3.4-.5 6-3.4 6-6.9V5h-2v4.8c0 2.6-1.7 4.9-4 5.6z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 3L7 5v4c0 2.2 1.8 4 4 4s4-1.8 4-4V5l-2-2H9zm3 12.7V19H8v2h8v-2h-4v-3.3c3.4-.5 6-3.4 6-6.9V5h-2v4.8c0 2.6-1.7 4.9-4 5.6z'/%3E%3C/svg%3E")}
.adv-icon-grid:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 3h8v8H3V3zm10 0h8v8h-8V3zM3 13h8v8H3v-8zm10 0h8v8h-8v-8z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 3h8v8H3V3zm10 0h8v8h-8V3zM3 13h8v8H3v-8zm10 0h8v8h-8v-8z'/%3E%3C/svg%3E")}
.adv-icon-truck:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 8h-3V4H3v13h2c0 1.66 1.34 3 3 3s3-1.34 3-3h4c0 1.66 1.34 3 3 3s3-1.34 3-3h2v-5l-3-5zM6 17.5c-.83 0-1.5-.67-1.5-1.5s.67-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5zm13.5-8l2.5 4H17V9.5h2.5zm-1.5 8c-.83 0-1.5-.67-1.5-1.5s.67-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 8h-3V4H3v13h2c0 1.66 1.34 3 3 3s3-1.34 3-3h4c0 1.66 1.34 3 3 3s3-1.34 3-3h2v-5l-3-5zM6 17.5c-.83 0-1.5-.67-1.5-1.5s.67-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5zm13.5-8l2.5 4H17V9.5h2.5zm-1.5 8c-.83 0-1.5-.67-1.5-1.5s.67-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5z'/%3E%3C/svg%3E")}
.adv-icon-briefcase:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6h-4V4c0-1.11-.89-2-2-2h-4c-1.11 0-2 .89-2 2v2H4c-1.11 0-1.99.89-1.99 2L2 19c0 1.11.89 2 2 2h16c1.11 0 2-.89 2-2V8c0-1.11-.89-2-2-2zm-6 0h-4V4h4v2z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6h-4V4c0-1.11-.89-2-2-2h-4c-1.11 0-2 .89-2 2v2H4c-1.11 0-1.99.89-1.99 2L2 19c0 1.11.89 2 2 2h16c1.11 0 2-.89 2-2V8c0-1.11-.89-2-2-2zm-6 0h-4V4h4v2z'/%3E%3C/svg%3E")}
.adv-icon-headset:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 1c-4.97 0-9 4.03-9 9v7c0 1.66 1.34 3 3 3h3v-8H5v-2c0-3.87 3.13-7 7-7s7 3.13 7 7v2h-4v8h3c1.66 0 3-1.34 3-3v-7c0-4.97-4.03-9-9-9z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 1c-4.97 0-9 4.03-9 9v7c0 1.66 1.34 3 3 3h3v-8H5v-2c0-3.87 3.13-7 7-7s7 3.13 7 7v2h-4v8h3c1.66 0 3-1.34 3-3v-7c0-4.97-4.03-9-9-9z'/%3E%3C/svg%3E")}
.section-dark .adv h3{font-size:18px;color:#fff;margin-bottom:8px}
.section-dark .adv p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.7}
[dir="rtl"] .adv-grid{direction:rtl}

/* 行业应用 4 图标（铁路/公路/水利/市政 · 浅色分区） */
.app-section{padding:64px 0;background:var(--bg-alt)}
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.app-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 22px;text-align:center;transition:transform .18s,box-shadow .18s,border-color .18s;color:var(--ink);display:block}
.app-item:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(146,64,14,.1);border-color:var(--amber)}
.app-icon{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:rgba(146,64,14,.1);border:1px solid rgba(146,64,14,.2);display:flex;align-items:center;justify-content:center;transition:transform .25s}
.app-icon-dyn{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:rgba(146,64,14,.1);border:1px solid rgba(146,64,14,.2);display:flex;align-items:center;justify-content:center;font-size:30px;color:var(--amber);transition:transform .25s}
.app-item:hover .app-icon{transform:scale(1.1) rotate(6deg);background:rgba(146,64,14,.16)}
.app-icon:before{content:"";width:32px;height:32px;background:var(--amber);mask-size:contain;mask-repeat:no-repeat;mask-position:center;-webkit-mask-size:contain;-webkit-mask-repeat:no-repeat;-webkit-mask-position:center;mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z'/%3E%3C/svg%3E");-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z'/%3E%3C/svg%3E")}
.app-item h3{color:var(--ink);font-size:19px;margin-bottom:6px;font-weight:700}
.app-item p{color:var(--muted);font-size:13px;line-height:1.65}
/* 应用图标 SVG（铁路/公路/水利/市政 + 后台自定义 anchor/spray/expand） */
.app-icon-rail:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2C8 2 4 2.5 4 6v9.5A3.5 3.5 0 0 0 7.5 19L6 20.5v.5h2.46l2-2H12l2 2h2.46v-.5L15 19h.5a2.5 2.5 0 0 0 2.5-2.5V12h2v-2h-2V8a2 2 0 0 0-2-2h-2.18A3 3 0 0 0 12 4a3 3 0 0 0-1.82 2H8C6.9 6 6 6.9 6 8v2H4v2h2v.5A2.5 2.5 0 0 0 8.5 15H7v2h10v-2h-1.5a2.5 2.5 0 0 0 2.5-2.5V8a4 4 0 0 0-4-4h-1a3 3 0 0 0-1 0h-1zm-2 4h4a1 1 0 0 1 1 1v3H9V7a1 1 0 0 1 1-1z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2C8 2 4 2.5 4 6v9.5A3.5 3.5 0 0 0 7.5 19L6 20.5v.5h2.46l2-2H12l2 2h2.46v-.5L15 19h.5a2.5 2.5 0 0 0 2.5-2.5V12h2v-2h-2V8a2 2 0 0 0-2-2h-2.18A3 3 0 0 0 12 4a3 3 0 0 0-1.82 2H8C6.9 6 6 6.9 6 8v2H4v2h2v.5A2.5 2.5 0 0 0 8.5 15H7v2h10v-2h-1.5a2.5 2.5 0 0 0 2.5-2.5V8a4 4 0 0 0-4-4h-1a3 3 0 0 0-1 0h-1zm-2 4h4a1 1 0 0 1 1 1v3H9V7a1 1 0 0 1 1-1z'/%3E%3C/svg%3E\")}
.app-icon-road:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M18.92 6.01C18.72 5.42 18.16 5 17.5 5h-11c-.66 0-1.21.42-1.42 1.01L3 12v8a1 1 0 0 0 1 1h1a1 1 0 0 0 1-1v-1h12v1a1 1 0 0 0 1 1h1a1 1 0 0 0 1-1v-8l-2.08-5.99zM6.5 16a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3zm11 0a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3zm-1.5-6l-1.5-4.5h-5L8 10H6L7.5 5.5h9L18 10h-2.5z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M18.92 6.01C18.72 5.42 18.16 5 17.5 5h-11c-.66 0-1.21.42-1.42 1.01L3 12v8a1 1 0 0 0 1 1h1a1 1 0 0 0 1-1v-1h12v1a1 1 0 0 0 1 1h1a1 1 0 0 0 1-1v-8l-2.08-5.99zM6.5 16a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3zm11 0a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3zm-1.5-6l-1.5-4.5h-5L8 10H6L7.5 5.5h9L18 10h-2.5z'/%3E%3C/svg%3E\")}
.app-icon-water:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0L12 2.69z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0L12 2.69z'/%3E%3C/svg%3E\")}
.app-icon-city:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M15 11V5l-3-3-3 3v2H3v14h18V11h-6zm-8 8H5v-2h2v2zm0-4H5v-2h2v2zm0-4H5V9h2v2zm6 8h-2v-2h2v2zm0-4h-2v-2h2v2zm0-4h-2V9h2v2zm0-4h-2V5h2v2zm6 12h-2v-2h2v2zm0-4h-2v-2h2v2z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M15 11V5l-3-3-3 3v2H3v14h18V11h-6zm-8 8H5v-2h2v2zm0-4H5v-2h2v2zm0-4H5V9h2v2zm6 8h-2v-2h2v2zm0-4h-2v-2h2v2zm0-4h-2V9h2v2zm0-4h-2V5h2v2zm6 12h-2v-2h2v2zm0-4h-2v-2h2v2z'/%3E%3C/svg%3E\")}
.app-icon-anchor:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2a3 3 0 0 0-3 3 3 3 0 0 0 2 2.83V11H8v2h3v7.5l-3 2.5v1h6v-1l-3-2.5V13h3v-2h-3V7.83A3 3 0 0 0 15 5a3 3 0 0 0-3-3z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 2a3 3 0 0 0-3 3 3 3 0 0 0 2 2.83V11H8v2h3v7.5l-3 2.5v1h6v-1l-3-2.5V13h3v-2h-3V7.83A3 3 0 0 0 15 5a3 3 0 0 0-3-3z'/%3E%3C/svg%3E\")}
.app-icon-spray:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M7 2h10v4H7V2zm1 6h8l2 14H6l2-14zm3-4h2v2h-2V4z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M7 2h10v4H7V2zm1 6h8l2 14H6l2-14zm3-4h2v2h-2V4z'/%3E%3C/svg%3E\")}
.app-icon-expand:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M4 9V4h5l-2 2 4 4-2 2-4-4-1 1zm16 6v5h-5l2-2-4-4 2-2 4 4 1-1z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M4 9V4h5l-2 2 4 4-2 2-4-4-1 1zm16 6v5h-5l2-2-4-4 2-2 4 4 1-1z'/%3E%3C/svg%3E\")}
.app-icon-grout:before{mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M2 8h20v2H2V8zm0 6h20v2H2v-2zm3-8h3v4H5V6zm11 0h3v4h-3V6z'/%3E%3C/svg%3E\");-webkit-mask-image:url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M2 8h20v2H2V8zm0 6h20v2H2v-2zm3-8h3v4H5V6zm11 0h3v4h-3V6z'/%3E%3C/svg%3E\")}

/* Stats */
.stats{background:#0a1a2e;color:#fff;padding:52px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.stat b{display:block;font-size:40px;color:#fbbf24;font-weight:800;line-height:1.2}
.stat span{font-size:14px;opacity:.85;letter-spacing:1px}

/* CTA 联系横幅 */
.cta-band{background:linear-gradient(120deg,var(--amber) 0%,#7c2d12 100%);color:#fff;padding:52px 0}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h3{font-size:26px;font-weight:800;margin-bottom:6px}
.cta-band p{opacity:.9;font-size:15px}
.cta-band .cta-phone{display:block;font-size:30px;font-weight:800;color:#fbbf24;letter-spacing:1px;white-space:nowrap}
.cta-band .cta-tel-label{font-size:13px;opacity:.85;letter-spacing:2px}

/* Detail */
.detail{max-width:820px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:12px}
.breadcrumb a:hover{color:var(--blue)}
.lead{font-size:18px;color:var(--muted);margin:10px 0 18px}
.rich p{margin-bottom:14px}
.meta{font-size:13px;color:var(--muted);margin-bottom:8px}

/* Contact */
.contact-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start;margin-top:28px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 8px 26px rgba(15,33,56,.06)}
.contact-card h3{font-size:18px;margin-bottom:16px;color:var(--amber)}
.contact-list{list-style:none;margin-top:0}
.contact-list li{padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px}
.contact-list li:last-child{border-bottom:none}
.contact-list a{color:var(--blue)}
.contact-tel{font-size:18px;font-weight:800;color:var(--amber);letter-spacing:.5px}
.contact-map{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);min-height:360px;background:#e8edf2}
.contact-map iframe{width:100%;height:100%;min-height:360px;border:0;display:block}
.contact-map-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);font-size:14px;color:var(--muted)}
.contact-map-foot a{color:var(--blue);font-weight:600;text-decoration:none}
.contact-map-foot a:hover{text-decoration:underline}
@media(max-width:900px){.contact-wrap{grid-template-columns:1fr}.contact-map{min-height:260px}.contact-map iframe{min-height:260px}.contact-map-foot{flex-direction:column;align-items:flex-start;gap:6px}}

/* 联系我们 · jxboyou 风格（左信息卡 + 右留言表单 + 地图） */
.contact-main{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;margin-top:4px}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:0 8px 26px rgba(15,33,56,.06)}
.contact-info-title{font-size:20px;font-weight:800;color:var(--amber);margin-bottom:20px}
.contact-info-list{list-style:none;margin:0;padding:0}
.contact-info-list li{display:flex;align-items:flex-start;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.contact-info-list li:last-child{border-bottom:none}
.ci-ico{flex-shrink:0;width:38px;height:38px;border-radius:50%;background:rgba(146,64,14,.1);color:var(--amber);display:flex;align-items:center;justify-content:center;font-size:18px}
.contact-info-list li b{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-bottom:2px}
.contact-info-list li span,.contact-info-list li a{font-size:15px;color:var(--ink)}
.contact-info-list li a{color:var(--blue)}
.contact-form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:0 8px 26px rgba(15,33,56,.06)}
.contact-form-title{font-size:20px;font-weight:800;color:var(--amber);margin-bottom:20px}
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);font-weight:600}
.contact-form input,.contact-form textarea{font-family:inherit;font-size:15px;color:var(--ink);padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;resize:vertical}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--amber)}
.contact-submit{margin-top:4px;background:var(--amber);color:#fff;border:none;border-radius:8px;padding:13px 20px;font-size:15px;font-weight:700;cursor:pointer;transition:background .15s}
.contact-submit:hover{background:var(--amber-soft)}
.contact-form-tip{font-size:14px;color:var(--amber);font-weight:600;margin:0;line-height:1.6}
@media(max-width:900px){.contact-main{grid-template-columns:1fr}.contact-form .form-row{grid-template-columns:1fr}}

/* Footer */
.site-footer{background:var(--navy);color:#cdd6e4;padding:52px 0 18px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:12px;position:relative;padding-bottom:8px}
.footer-grid h4:after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--amber-soft)}
.footer-grid p{font-size:14px;margin-bottom:6px;color:#9fb3cc}
.footer-grid a{color:#9fb3cc}
.footer-grid a:hover{color:#fff}
[dir="rtl"] .footer-grid h4:after{left:auto;right:0}
.copyright{margin-top:28px;padding-top:16px;border-top:1px solid #1d3148;font-size:13px;color:#7e8ba0}
.copyright a{color:inherit;text-decoration:underline;text-underline-offset:2px}
.copyright a:hover{color:#fff}
.cp-sep{margin:0 8px;color:#4a5a72}

@media(max-width:768px){
    .topbar .container{justify-content:center}
    .topbar-note{display:none}
    .nav-toggle{display:block;order:3}
    .brand{order:1}
    .nav-right{order:2}
    .nav-wrap{height:84px}
    .brand-logo{max-height:60px;max-width:280px}
    .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;padding:8px 20px 14px;border-bottom:1px solid var(--line);box-shadow:0 10px 24px rgba(0,0,0,.08)}
    .main-nav.open{display:flex}
    .btn-quote{display:none}
    .main-nav a{padding:12px 0;border-bottom:1px solid var(--line)}
    .main-nav a:last-child{border-bottom:none}
    .main-nav a:hover{border-color:transparent}
    .nav-right{gap:8px}
    .header-hotline{display:none}
    .lang-select{max-width:120px}
    .adv-grid{grid-template-columns:1fr}
    .app-grid{grid-template-columns:1fr}
    .partner-logo-grid{grid-template-columns:repeat(2,1fr);gap:10px}
    .partner-logo-card{border-radius:10px;padding:12px}
    .faq-q{padding:14px 16px;font-size:15px;gap:10px}
    .faq-q-num,.faq-a-num{width:26px;height:26px;font-size:12px}
    .faq-a{padding:0 16px 16px;gap:10px}
    .faq-a-text{font-size:14px;line-height:1.75}
    .hero{padding:64px 0;min-height:440px}
    .hero h1{font-size:26px;overflow-wrap:break-word}
    .hero-sub{font-size:16px}
    .hero-slides:after{background:linear-gradient(100deg,rgba(15,33,56,.88),rgba(15,33,56,.55))}
    .section{padding:52px 0}
    .sec-head h2{font-size:24px;padding:0 48px}
    .sec-head h2:before,.sec-head h2:after{width:24px}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .stat b{font-size:30px}
    .cta-band .container{justify-content:center;text-align:center}
    .footer-grid{grid-template-columns:1fr}
    .about-hero{min-height:420px}
    .about-hero-inner{justify-content:center;padding:30px 0}
    .about-hero-card{width:100%;max-width:520px;padding:26px 22px}
    .about-hero-card h1{font-size:22px}
    .about-intro-grid{grid-template-columns:1fr;gap:30px}
    .about-stats{grid-template-columns:repeat(2,1fr)}
    .about-stat b{font-size:22px}
    .scene-grid{grid-template-columns:repeat(2,1fr)}
    .values-grid{grid-template-columns:repeat(2,1fr)}
    .scene-item.scene-wide{grid-column:span 2}
    .honor-grid{grid-template-columns:repeat(2,1fr)}
}

/* 关于我们页（参考 jxboyou 大图解 + 白卡导航） */
.about-hero{position:relative;min-height:480px;display:flex;align-items:center;background:#0f2138;overflow:hidden}
.about-hero-bg{position:absolute;inset:0;background-size:cover;background-position:50% 50%;z-index:0}
.about-hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,33,56,.85) 0%,rgba(15,33,56,.55) 45%,rgba(15,33,56,.25) 100%)}
.about-hero-inner{position:relative;z-index:1;width:100%;display:flex;justify-content:flex-end;align-items:center;min-height:480px;padding:60px 0}
.about-hero-card{width:420px;max-width:100%;background:rgba(255,255,255,.78);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.35);border-radius:var(--radius);padding:38px 36px;box-shadow:0 24px 60px rgba(0,0,0,.18)}
.about-hero-label{display:inline-block;font-size:12px;letter-spacing:3px;color:var(--blue);font-weight:700;margin-bottom:10px}
.about-hero-card h1{font-size:28px;font-weight:800;color:var(--ink);margin-bottom:12px}
.about-hero-card>p{color:var(--muted);font-size:15px;line-height:1.7;margin-bottom:24px}
.about-hero-nav{list-style:none;display:flex;flex-direction:column;gap:10px}
.about-hero-nav li{border-bottom:1px solid var(--line)}
.about-hero-nav li:last-child{border-bottom:none}
.about-hero-nav a{display:flex;align-items:center;justify-content:space-between;padding:12px 0;font-size:15px;font-weight:600;color:var(--ink);transition:color .15s}
.about-hero-nav a:after{content:"→";color:var(--amber);font-weight:700}
.about-hero-nav a:hover{color:var(--amber)}

.about-intro .sec-head{text-align:left;margin-bottom:20px}
.about-intro .sec-head h2{padding-left:0}
.about-intro .sec-head h2:before,.about-intro .sec-head h2:after{display:none}
.about-intro-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:start}
.about-intro-media{border-radius:var(--radius);overflow:hidden;box-shadow:0 16px 40px rgba(15,33,56,.12)}
.about-intro-media img{width:100%;height:auto;display:block}
.about-intro-video{width:100%;height:auto;display:block;background:#000;min-height:240px}
.about-intro-body{color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:28px}
.about-intro-body p{margin-bottom:16px}
.about-intro-body p:last-child{margin-bottom:0}
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;border-top:1px solid var(--line);padding-top:24px}
.about-stat{text-align:center}
.about-stat b{display:block;font-size:26px;color:var(--amber);font-weight:800;line-height:1}
.about-stat span{font-size:12px;color:var(--muted);margin-top:6px;display:block;letter-spacing:.5px}

/* 关于我们 · 企业理念（愿景/使命/价值观/精神 · jxboyou 风格卡片） */
.about-values{background:#fff}
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.value-item{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center;transition:transform .18s,box-shadow .18s,border-color .18s}
.value-item:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(146,64,14,.1);border-color:var(--amber)}
.value-ico{font-size:34px;display:block;margin-bottom:14px;line-height:1}
.value-item h3{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:10px}
.value-item p{font-size:14px;color:var(--muted);line-height:1.8}

.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene-item{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:#eef2f6}
.scene-item.scene-wide{grid-column:span 2;aspect-ratio:16/7}
.scene-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.scene-item:hover img{transform:scale(1.04)}
.scene-caption{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(15,33,56,.78));color:#fff;font-size:14px;font-weight:600;padding:18px 16px 12px}

.about-honor{background:linear-gradient(160deg,#0f2138 0%,#132c4a 60%,#123152 100%);color:#fff}
.about-honor .sec-head h2{color:#fff}
.about-honor .sec-head .eyebrow{color:#fbbf24}
.about-honor .sec-head .sec-sub{color:rgba(255,255,255,.72)}
/* Honor grid (关于我们页资质荣誉) */
.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.honor-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:22px 16px;text-align:center;transition:transform .18s,background .18s}
.honor-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.honor-img{height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;border-radius:8px;overflow:hidden;background:rgba(0,0,0,.12);cursor:pointer;transition:transform .18s,box-shadow .18s;text-decoration:none}
.honor-img:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.2)}
.honor-img img{max-width:100%;max-height:100%;object-fit:contain}
/* 证书外观占位（SVG inline, 零网络; tone 控制主色) */
.honor-cert{position:relative;height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;background:rgba(0,0,0,.12);border-radius:8px;padding:10px;transition:transform .25s}
.honor-cert .cert-svg{width:100%;height:100%;display:block}
.honor-cert-cap{position:absolute;left:50%;bottom:6px;transform:translateX(-50%);font-size:9px;letter-spacing:1.5px;color:rgba(255,255,255,.5);font-weight:600}
.honor-item:hover .honor-cert{transform:translateY(-2px) scale(1.02)}
.honor-title{font-size:14px;font-weight:600;color:#fff;line-height:1.5;display:block}

/* 首页 · 战略合作客户（六边形蜂窝) */
.cases-section{background:var(--bg-alt);position:relative}
.cases-section:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(146,64,14,.08),transparent 60%);pointer-events:none}
.cases-section .container{position:relative;z-index:1}
.partner-logo-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;max-width:1100px;margin:0 auto}
.partner-logo-card{aspect-ratio:4/3;background:#fff;border:1px solid #e8e8e8;border-radius:14px;display:flex;align-items:center;justify-content:center;padding:18px;box-shadow:0 2px 8px rgba(15,33,56,.04);transition:transform .2s,box-shadow .2s,border-color .2s}
.partner-logo-card:hover{transform:translateY(-4px);box-shadow:0 8px 22px rgba(15,33,56,.1);border-color:#d4d4d4}
.partner-logo-img{max-width:100%;max-height:100%;object-fit:contain}
/* 平板：5个放不下时自动换行，保持3列 */
@media (max-width:900px){
    .partner-logo-grid{grid-template-columns:repeat(3,1fr);gap:14px}
}
.cases-foot{text-align:center;color:var(--muted);font-size:14px;margin-top:30px;max-width:760px;margin-left:auto;margin-right:auto}

/* 首页 · 常见问题（折叠) */
.faq-section{background:#fff}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:var(--amber);box-shadow:0 8px 24px rgba(146,64,14,.08)}
.faq-q{list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;gap:14px;font-size:16px;font-weight:600;color:var(--ink);transition:background .15s;user-select:none}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{background:#fdf8f3}
.faq-q-num{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:6px;background:var(--amber);color:#fff;font-size:13px;font-weight:700;font-family:ui-monospace,Consolas,monospace}
.faq-q-text{flex:1;line-height:1.5}
.faq-toggle{flex-shrink:0;width:24px;height:24px;position:relative;color:var(--amber);transition:transform .25s}
.faq-toggle:before,.faq-toggle:after{content:"";position:absolute;left:50%;top:50%;background:currentColor;transform:translate(-50%,-50%);transition:transform .25s}
.faq-toggle:before{width:14px;height:2px}
.faq-toggle:after{width:2px;height:14px}
.faq-item[open] .faq-toggle:after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:flex;gap:14px;padding:0 24px 22px;align-items:flex-start;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.faq-a-num{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:6px;background:var(--blue);color:#fff;font-size:13px;font-weight:700;font-family:ui-monospace,Consolas,monospace}
.faq-a-text{flex:1;color:var(--muted);font-size:15px;line-height:1.85}
.faq-foot{text-align:center;margin-top:32px;color:var(--muted);font-size:15px}
.faq-foot-tel{color:var(--amber);font-weight:800;font-size:18px;letter-spacing:1px;margin-left:6px}

/* RTL（阿拉伯语）排版覆盖 */
[dir="rtl"] .section-title{padding-left:0;padding-right:14px}
[dir="rtl"] .section-title:before{left:auto;right:0}
[dir="rtl"] .adv{border-left:none;border-right:4px solid var(--blue)}
[dir="rtl"] .breadcrumb a:hover{color:var(--blue)}
[dir="rtl"] .main-nav{direction:rtl}
[dir="rtl"] .tag{direction:ltr}
[dir="rtl"] .hero-cta,[dir="rtl"] .card-grid,[dir="rtl"] .adv-grid{direction:rtl}

/* 分页 */
.pager{display:flex;gap:8px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.pager a{min-width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #e2e8f0;border-radius:8px;color:#5c6578;font-size:14px}
.pager a.on{background:var(--amber);border-color:var(--amber);color:#fff;font-weight:600}
.card-date{font-size:12px;color:#94a3b8;margin-top:6px;display:block}

/* ===== v600 核心产品 tab 切换（jxboyou 风格） ===== */
.prod-tabs-section{padding:72px 0 64px;background:#fff}
.prod-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:0;background:#fff}
.prod-tab{display:flex;align-items:center;gap:14px;padding:22px 24px;background:#fff;color:var(--ink);border:none;border-right:1px solid var(--line);border-bottom:3px solid transparent;cursor:pointer;text-align:left;transition:background .2s,color .2s,border-color .2s;font-family:inherit}
.prod-tab:last-child{border-right:none}
.prod-tab:hover{background:#fdf8f3}
.prod-tab.active{background:var(--amber);color:#fff;border-bottom-color:var(--amber)}
.prod-tab.active .prod-tab-icon{color:#fff;background-color:rgba(255,255,255,.18)}
.prod-tab.active .prod-tab-en,.prod-tab.active .prod-tab-cat{color:rgba(255,255,255,.85)}
.prod-tab-icon{flex-shrink:0;width:46px;height:46px;border-radius:8px;background:rgba(146,64,14,.1);color:var(--amber);display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}
.prod-tab-icon svg{width:26px;height:26px}
.prod-tab-text{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}
.prod-tab-name{font-size:16px;font-weight:700;line-height:1.3}
.prod-tab-en{font-size:11px;color:var(--muted);letter-spacing:.5px;line-height:1.2;text-transform:uppercase}
.prod-tab-cat{font-size:12px;color:var(--muted);line-height:1.3}

.prod-panels{position:relative;border:1px solid var(--line);border-top:none;border-radius:0 0 var(--radius) var(--radius);overflow:hidden;background:#fff;min-height:420px}
.prod-panel{display:none;grid-template-columns:1fr 1fr;gap:48px;padding:56px 48px;align-items:center;animation:fadeIn .3s ease}
.prod-panel.active{display:grid}
.prod-panel-text{display:flex;flex-direction:column;gap:14px;max-width:480px}
.prod-panel-cat{font-size:12px;color:var(--amber);letter-spacing:2.5px;font-weight:700;text-transform:uppercase}
.prod-panel-text h3{font-size:36px;font-weight:800;color:var(--ink);line-height:1.15;margin:0}
.prod-panel-en{font-size:18px;color:var(--muted);font-weight:500;letter-spacing:1px}
.prod-panel-divider{width:60px;height:3px;background:var(--amber);border-radius:2px;margin:6px 0}
.prod-panel-desc{font-size:15px;color:var(--ink);line-height:1.85}
.prod-panel-btn{display:inline-flex;align-items:center;gap:10px;margin-top:14px;padding:14px 28px;background:var(--amber);color:#fff;font-size:15px;font-weight:600;border-radius:6px;width:fit-content;transition:background .2s,transform .15s;text-decoration:none}
.prod-panel-btn:hover{background:var(--amber-soft);transform:translateX(3px)}
.prod-panel-arrow{transition:transform .2s;font-size:16px}
.prod-panel-btn:hover .prod-panel-arrow{transform:translateX(4px)}
.prod-panel-img{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(135deg,#f8f9fa,#e8eaef);box-shadow:0 20px 48px rgba(0,0,0,.08)}
.prod-panel-img img{width:100%;height:100%;object-fit:contain;display:block;padding:20px}

/* ===== v600 新闻中心 三段式（jxboyou 风格） ===== */
.news-3col{padding:72px 0;background:var(--bg-alt)}
.news-3col-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1180px;margin:0 auto}
.news-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s}
.news-col:hover{box-shadow:0 12px 32px rgba(146,64,14,.08);transform:translateY(-3px)}
.news-col-head{padding:20px 24px;border-bottom:2px solid var(--amber);background:linear-gradient(135deg,#fff8eb,#fff);display:flex;flex-direction:column;gap:4px}
.news-col-head h4{font-size:20px;font-weight:700;color:var(--ink);margin:0;line-height:1.2}
.news-col-en{font-size:11px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase;font-weight:600}
.news-list{list-style:none;margin:0;padding:8px 0;flex:1}
.news-list li{border-bottom:1px dashed var(--line)}
.news-list li:last-child{border-bottom:none}
.news-list a{display:flex;flex-direction:column;gap:4px;padding:14px 24px;color:var(--ink);text-decoration:none;transition:background .15s,color .15s;position:relative}
.news-list a:hover{background:#fdf8f3;color:var(--amber)}
.news-list a:hover .news-list-title{color:var(--amber)}
.news-list-title{font-size:14px;font-weight:500;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .15s}
.news-list-date{font-size:12px;color:var(--muted);letter-spacing:.5px;font-family:ui-monospace,Consolas,monospace}

/* ===== v600 移动端适配 ===== */
@media(max-width:980px){
    .prod-tabs{grid-template-columns:repeat(2,1fr)}
    .prod-tab{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
    .prod-tab:nth-child(2){border-right:none}
    .prod-tab:nth-child(3),.prod-tab:nth-child(4){border-bottom:none}
    .prod-panel{grid-template-columns:1fr;gap:24px;padding:32px 24px}
    .prod-panel-text{max-width:100%}
    .prod-panel-text h3{font-size:28px}
    .news-3col-grid{grid-template-columns:1fr;gap:16px}
}
@media(max-width:580px){
    .prod-tabs{grid-template-columns:1fr}
    .prod-tab{border-right:none;border-bottom:1px solid var(--line)}
    .prod-tab:last-child{border-bottom:none}
    .prod-panel{padding:24px 18px}
    .prod-panel-text h3{font-size:24px}
}

/* ===== v610 FAQ 分类 TAB ===== */
.faq-tabs{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.faq-tab{appearance:none;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:15px;font-weight:600;padding:11px 24px;border-radius:999px;cursor:pointer;transition:all .15s;font-family:inherit}
.faq-tab:hover{border-color:var(--amber);color:var(--amber)}
.faq-tab.active{background:var(--amber);border-color:var(--amber);color:#fff;box-shadow:0 8px 20px rgba(146,64,14,.16)}
.faq-groups{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-cat{display:flex;flex-direction:column;gap:14px}

/* ===== v610 子页轮播海报 banner ===== */
.sub-banner{position:relative;overflow:hidden;height:240px;background:var(--navy);color:#fff;display:flex;align-items:center}
.sub-banner-slides{position:absolute;inset:0;z-index:0}
.sub-banner-slide{position:absolute;inset:0;background-size:cover;background-position:50% 50%;opacity:0;animation:subFade 16s infinite}
.sub-banner-slide:nth-child(1){animation-delay:0s}
.sub-banner-slide:nth-child(2){animation-delay:4s}
.sub-banner-slide:nth-child(3){animation-delay:8s}
.sub-banner-slide:nth-child(4){animation-delay:12s}
@keyframes subFade{0%{opacity:0}4%{opacity:1}22%{opacity:1}26%{opacity:0}100%{opacity:0}}
.sub-banner-slides:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,33,56,.86) 8%,rgba(15,33,56,.55) 60%,rgba(15,33,56,.25))}
.sub-banner-inner{position:relative;z-index:1;width:100%}
.sub-banner-title{font-size:40px;font-weight:800;letter-spacing:1px;text-shadow:0 2px 16px rgba(0,0,0,.3)}

/* ===== v610 右侧浮动工具栏 ===== */
.float-bar{position:fixed;right:18px;bottom:88px;z-index:60;display:flex;flex-direction:column;gap:12px}
.float-btn{width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;background:var(--amber);color:#fff;font-size:18px;box-shadow:0 8px 22px rgba(146,64,14,.28);transition:transform .15s,background .15s;text-decoration:none}
.float-btn:hover{transform:translateY(-3px);background:var(--amber-soft)}
.float-btn .float-ico{line-height:1}
.float-ico-img{width:26px;height:26px;object-fit:contain;display:block;filter:brightness(0) invert(1)}
.float-wechat{background:#07c160}
.float-wechat:hover{background:#06ad56}
.float-qq{background:#12b7f5;font-size:13px;font-weight:800}
.float-qq:hover{background:#0fa3da}
.float-top{background:var(--navy)}
.float-top:hover{background:#132c4a}
.float-wangwang{background:#ff6a00;font-size:20px}
.float-wangwang:hover{background:#e85f00}
.float-email{background:#1e88e5;font-size:18px}
.float-email:hover{background:#1565c0}
.wechat-pop{position:fixed;inset:0;z-index:80;display:none;align-items:center;justify-content:center;background:rgba(15,33,56,.55)}
.wechat-pop.open{display:flex}
.wechat-pop-inner{position:relative;background:#fff;border-radius:16px;padding:22px;width:300px;max-width:90vw;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.wechat-pop-img{width:240px;height:240px;object-fit:contain;border-radius:8px;background:#f6f7f9;display:block;margin:0 auto}
.wechat-pop-tip{font-size:14px;color:var(--muted);padding:40px 10px;line-height:1.7}
.wechat-pop-cap{display:block;margin-top:12px;font-size:15px;font-weight:600;color:var(--ink)}
.wechat-pop-close{position:absolute;top:8px;right:10px;width:32px;height:32px;border:none;background:none;font-size:24px;line-height:1;color:var(--muted);cursor:pointer}
.wangwang-pop-body{padding:30px 18px;text-align:center}
.wangwang-pop-ico{font-size:48px;display:block;margin-bottom:14px;line-height:1}
.wangwang-pop-title{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:8px}
.wangwang-pop-tip{font-size:14px;color:var(--muted);line-height:1.7;padding:0 6px}
.tel-pop-body{padding:28px 18px 22px;text-align:center}
.tel-pop-ico{font-size:46px;display:block;margin-bottom:12px;line-height:1;color:var(--amber)}
.tel-pop-title{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:4px}
.tel-pop-name{font-size:15px;color:var(--muted);margin-bottom:14px}
.tel-pop-number{display:block;font-size:28px;font-weight:800;color:var(--navy);letter-spacing:1px;margin-bottom:18px;text-decoration:none}
.tel-pop-number:hover{color:var(--amber)}
.tel-pop-call{display:inline-block;padding:12px 28px;border-radius:50px;background:var(--amber);color:#fff;font-size:15px;font-weight:700;text-decoration:none;transition:background .15s,transform .15s}
.tel-pop-call:hover{background:var(--amber-soft);transform:translateY(-2px)}
.email-pop-body{padding:28px 18px 22px;text-align:center}
.email-pop-ico{font-size:46px;display:block;margin-bottom:12px;line-height:1;color:#1e88e5}
.email-pop-title{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:10px}
.email-pop-address{font-size:16px;font-weight:600;color:var(--navy);margin-bottom:20px;word-break:break-all}
.email-pop-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.email-pop-btn{display:inline-block;padding:10px 20px;border-radius:50px;font-size:14px;font-weight:700;text-decoration:none;transition:background .15s,transform .15s;border:none;cursor:pointer}
.email-pop-copy{background:#1e88e5;color:#fff}
.email-pop-copy:hover{background:#1565c0;transform:translateY(-2px)}
.email-pop-send{background:var(--amber);color:#fff}
.email-pop-send:hover{background:var(--amber-soft);transform:translateY(-2px)}
.email-pop-tip{font-size:13px;color:#2e7d32;margin-top:14px}

/* 资质荣誉 · 大图灯箱 */
.lightbox{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;background:rgba(15,33,56,.92);padding:40px;opacity:0;transition:opacity .2s}
.lightbox.open{display:flex;opacity:1}
.lightbox-img{max-width:100%;max-height:85vh;object-fit:contain;border-radius:8px;box-shadow:0 24px 70px rgba(0,0,0,.45);background:#fff}
.lightbox-cap{position:absolute;left:0;right:0;bottom:24px;text-align:center;color:#fff;font-size:15px;font-weight:600;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:18px;right:22px;width:44px;height:44px;border:none;background:none;color:#fff;font-size:36px;line-height:1;cursor:pointer;z-index:91}
.lightbox-close:hover{color:var(--amber)}

/* ===== v610 新闻列表（list1 竖向） ===== */
.news-list1{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.news-list1-item{border-bottom:1px solid var(--line)}
.news-list1-item:last-child{border-bottom:none}
.news-list1 a{display:flex;align-items:center;gap:20px;padding:18px 22px;transition:background .15s;text-decoration:none}
.news-list1 a:hover{background:#fdf8f3}
.news-list1-date{flex-shrink:0;width:92px;font-size:13px;color:var(--muted);font-family:ui-monospace,Consolas,monospace;letter-spacing:.5px}
.news-list1-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.news-list1-title{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;transition:color .15s}
.news-list1 a:hover .news-list1-title{color:var(--amber)}
.news-list1-sum{font-size:13px;color:var(--muted);line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-list1-arrow{flex-shrink:0;color:var(--amber);font-size:18px;transition:transform .15s}
.news-list1 a:hover .news-list1-arrow{transform:translateX(4px)}
.news-list1-empty{padding:22px;color:var(--muted);text-align:center}

/* ===== v610 移动端适配补充 ===== */
@media(max-width:768px){
  .sub-banner{height:170px}
  .sub-banner-title{font-size:26px}
  .float-bar{right:12px;bottom:74px;gap:10px}
  .float-btn{width:42px;height:42px;font-size:16px}
  .app-grid{grid-template-columns:1fr 1fr}
  .faq-tabs{margin-bottom:22px}
  .faq-tab{padding:9px 16px;font-size:14px}
  .news-list1 a{gap:12px;padding:14px 16px}
  .news-list1-date{width:74px;font-size:12px}
  .news-list1-title{font-size:15px}
}
@media(max-width:480px){
  .app-grid{grid-template-columns:1fr}
  .sub-banner-title{font-size:22px}
}

/* ===== v654 手机端响应式体验优化（全部位于 @media 内，零桌面影响） ===== */

/* 1) ≤768px：图片/富文本自适应 + 防横向溢出 + 栏目标题装饰收敛 + 移动菜单贴合 */
@media(max-width:768px){
    body{overflow-x:clip}
    img{height:auto}
    .container{padding:0 16px}
    .rich img,.rich iframe,.rich video,
    .detail img,.detail iframe,.detail video{max-width:100%;height:auto}
    .rich table{width:100%;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
    .rich table th,.rich table td{border:1px solid var(--line);padding:8px 10px;font-size:14px}
    .detail{max-width:100%}
    .sec-head h2{padding:0 16px}
    .sec-head h2:before,.sec-head h2:after{display:none}
    .main-nav{top:100%}
    .prod-panel{padding:24px 18px}
    .prod-panel-text h3{font-size:24px}
    .cta-band{padding:40px 0}
    .cta-band h3{font-size:22px}
    .cta-band .cta-phone{font-size:24px}
    .contact-info,.contact-form-card{padding:22px 18px}
    .nav-wrap{height:72px}
    .brand-logo{max-height:52px;max-width:220px}
    .topbar{font-size:12px}
}

/* 2) ≤480px：超窄屏进一步收敛，避免拥挤 */
@media(max-width:480px){
    .container{padding:0 14px}
    .hero h1{font-size:20px;line-height:1.35;word-break:break-all}
    .hero-sub{font-size:15px}
    .sec-head h2{font-size:20px}
    .section{padding:44px 0}
    .cta-band .cta-phone{font-size:22px}
    .prod-panel-text h3{font-size:22px}
}

/* 3) ≤360px：极小屏保证 header 不溢出 */
@media(max-width:360px){
    .brand-logo{max-width:170px}
    .lang-select{padding:4px 8px;font-size:13px}
    .nav-toggle{width:38px;height:38px;background-size:24px 24px}
}

/* ===== v800 工程案例栏目 + 新闻分类筛选（2026-09-10 新增） ===== */
.filter-chips{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 26px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border:1px solid var(--line);border-radius:999px;
      background:#fff;color:var(--muted);font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;
      line-height:1.4;transition:all .18s}
.chip:hover{border-color:var(--amber);color:var(--amber)}
.chip.on{background:var(--amber);border-color:var(--amber);color:#fff}
.case-card .card-media{height:190px;background:linear-gradient(150deg,#f7f4f0 0%,#efe9e1 100%)}
.case-media-ph{display:flex;align-items:center;justify-content:center;width:100%;height:100%;
      color:var(--amber);font-size:15px;font-weight:700;letter-spacing:.5px;opacity:.85;text-align:center;padding:0 14px}
.case-hero{margin:8px 0 22px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#f6f7f9}
.case-hero img{display:block;width:100%;height:auto}
.sec-h2{font-size:22px;font-weight:800;margin:34px 0 16px;color:var(--ink);position:relative;padding-left:14px}
.sec-h2:before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:5px;background:var(--amber);border-radius:3px}
.rich p.muted,.muted{color:var(--muted);font-size:14px}
@media(max-width:640px){
    .filter-chips{gap:8px;margin-bottom:20px}
    .chip{padding:6px 12px;font-size:13px}
    .case-card .card-media{height:160px}
    .sec-h2{font-size:19px}
}

/* ===== v800 发展历程 / 合作与加盟 页面（2026-09-10 新增） ===== */
.timeline{margin:22px 0 26px;position:relative;padding-left:26px}
.timeline:before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--amber) 0%,#e8d9c6 100%)}
.tl-item{position:relative;padding:0 0 20px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item:before{content:"";position:absolute;left:-26px;top:6px;width:12px;height:12px;border-radius:50%;
      background:#fff;border:3px solid var(--amber);box-sizing:border-box}
.tl-year{display:inline-block;font-size:15px;font-weight:800;color:var(--amber);margin-bottom:4px;letter-spacing:.3px}
.tl-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.about-links{margin-top:14px;display:flex;gap:22px;flex-wrap:wrap}
.rich h3{font-size:18px;font-weight:800;margin:26px 0 10px;color:var(--ink)}
.rich ul,.rich ol{margin:0 0 16px 22px}
.rich li{margin-bottom:7px;line-height:1.75}
@media(max-width:640px){
    .timeline{padding-left:22px}
    .tl-item:before{left:-22px;width:10px;height:10px}
    .tl-year{font-size:14px}
    .about-links{gap:14px}
}

/* 新品角标（2026-09-10：接通后台 products.is_new） */
.badge-new{display:inline-block;margin-left:8px;padding:1px 7px;border-radius:10px;background:var(--amber);color:#fff;font-size:11px;font-weight:700;letter-spacing:.5px;line-height:18px;vertical-align:middle;text-transform:none}
.prod-panel-cat .badge-new{margin-left:10px;vertical-align:2px}
.badge-new-corner{position:absolute;top:10px;left:10px;margin-left:0;z-index:2;box-shadow:0 2px 8px rgba(146,64,14,.28)}

/* ===== 页脚版权 / ICP 备案条（2026-09-18） ===== */
.copyright{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;line-height:1.7}
.cp-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px}
.cp-sep{opacity:.45}
.cp-link{color:inherit;text-decoration:none;border-bottom:1px dotted rgba(255,255,255,.3);transition:color .2s,border-color .2s}
.cp-link:hover{color:#fbbf24;border-bottom-color:#fbbf24}
.cp-row--beian{margin-top:2px;font-size:.92em}
.cp-icp{display:inline-flex;align-items:center;gap:5px;color:inherit;text-decoration:none;opacity:.85;letter-spacing:.02em;transition:color .2s,opacity .2s}
.cp-icp:hover{color:#fbbf24;opacity:1}
.cp-icp::before{content:"";width:12px;height:12px;flex:0 0 12px;border-radius:2px;background:currentColor;opacity:.55;
  -webkit-mask:var(--cp-icp-icon) center/contain no-repeat;mask:var(--cp-icp-icon) center/contain no-repeat}
@media (max-width:640px){
  .copyright{font-size:12px;gap:6px;padding-left:12px;padding-right:12px}
  .cp-row{flex-direction:column;gap:4px}
  .cp-icp::before{display:none}
}

/* ===== 文章上一篇/下一篇（2026-09-19 新增） ===== */
.prevnext{display:flex;gap:14px;justify-content:space-between;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);flex-wrap:wrap}
.pn-item{display:flex;flex-direction:column;gap:5px;max-width:47%;min-width:180px;padding:13px 16px;border:1px solid var(--line);border-radius:10px;background:var(--bg);text-decoration:none;transition:.2s}
.pn-item:hover{border-color:var(--amber-soft);box-shadow:0 4px 14px rgba(15,33,56,.10)}
.pn-item.disabled{opacity:.45;cursor:default}
.pn-next{text-align:right;margin-left:auto}
.pn-label{font-size:12px;color:var(--muted)}
.pn-title{font-size:14px;color:var(--ink);font-weight:600;line-height:1.45}
@media(max-width:640px){.pn-item{max-width:100%}.pn-next{text-align:left;margin-left:0}}

/* ===== 站内搜索（2026-09-19 新增） ===== */
.nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--bg);height:32px}
.nav-search-input{border:0;outline:0;width:130px;padding:0 10px;font-size:13px;background:transparent;color:var(--ink)}
.nav-search-btn{border:0;background:transparent;cursor:pointer;padding:0 9px;font-size:13px;line-height:32px}
.nav-search:focus-within{border-color:var(--amber-soft)}
.search-form{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.search-input{flex:1;min-width:220px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;color:var(--ink);background:var(--bg)}
.search-input:focus{outline:0;border-color:var(--amber-soft)}
.sec-h2{font-size:19px;color:var(--ink);margin:22px 0 12px;font-weight:700}
@media(max-width:900px){.nav-search{display:none}}
@media(max-width:640px){.nav-search{display:none}.search-form{flex-direction:column}.search-input{min-width:0;width:100%}}