/* ===================================================================
   YR科技 · 前台样式（科技深蓝 · 电脑/手机全自适应）
   =================================================================== */
:root{
  --navy:#0b1f45; --navy2:#12306e; --blue:#2563eb; --blue2:#1d4ed8; --cyan:#06b6d4;
  --ink:#0f172a; --mut:#5b6b85; --bg:#f3f6fc; --line:#e6ecf6; --card:#ffffff;
  --ok:#16a34a; --warn:#f59e0b; --bad:#ef4444; --grad:linear-gradient(120deg,#2563eb,#06b6d4);
  --shadow:0 12px 32px rgba(15,45,110,.10);
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:15px;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
b,strong{font-weight:600}
.wrap{max-width:1200px;margin:0 auto;padding:0 18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font-size:15px;font-weight:600;padding:12px 24px;border-radius:10px;transition:.25s;background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28);text-align:center;line-height:1.2}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(37,99,235,.36);opacity:.98}
.btn:active{transform:translateY(0)}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.btn-ghost{background:transparent;color:#e6f0ff;border:1px solid rgba(255,255,255,.55);box-shadow:none}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-ghost-foot{background:#fff;color:var(--blue2);box-shadow:none}
.btn-head-cta{background:#fff;color:var(--blue2);box-shadow:0 6px 16px rgba(2,10,30,.12);padding:8px 18px;font-size:14px}
.btn-head-cta:hover{color:var(--blue2)}
.pill{display:inline-block;font-size:11px;color:var(--blue);background:rgba(37,99,235,.1);border-radius:6px;padding:2px 8px;font-weight:600}

/* ---------------- 顶部条 ---------------- */
.topbar{background:linear-gradient(90deg,#0a1733,#12306e 60%,#0e7490);color:#cfe0ff;font-size:12.5px}
.topbar-in{display:flex;align-items:center;justify-content:space-between;min-height:34px;gap:10px}
.tb-left{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden}
.tb-left .d{color:#22d3ee;font-style:normal}
.tb-right{display:flex;align-items:center;gap:12px;white-space:nowrap}
.tb-tel{color:#9fe8ff}
.lang-btn{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:12px;display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:20px;cursor:pointer;transition:.2s}
.lang-btn:hover{background:rgba(255,255,255,.24)}

/* ---------------- 主导航 ---------------- */
.site-head{background:#fff;position:sticky;top:0;z-index:60;transition:box-shadow .25s,border-color .25s;border-bottom:1px solid transparent}
.site-head.scrolled{box-shadow:0 6px 22px rgba(10,30,80,.10);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:26px;height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-logo{width:42px;height:42px;border-radius:11px;background:var(--grad);color:#fff;font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;letter-spacing:.5px;box-shadow:0 6px 14px rgba(37,99,235,.35);flex:none}
.brand-txt{display:flex;flex-direction:column;line-height:1.2}
.brand-txt b{font-size:19px;color:var(--navy);letter-spacing:.5px}
.brand-txt i{font-style:normal;font-size:11px;color:#8aa0c0}
.head-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.head-nav a{position:relative;padding:26px 14px 22px;font-size:15.5px;color:#33415e;font-weight:500;transition:.2s}
.head-nav a:hover{color:var(--blue)}
.head-nav a.on{color:var(--blue2);font-weight:600}
.head-nav a.on:after{content:'';position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--grad)}
.head-actions{display:flex;align-items:center;gap:12px}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:9px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.burger span{width:20px;height:2px;background:#1e293b;border-radius:2px}

/* ---------------- 移动抽屉 ---------------- */
.drawer{position:fixed;top:0;bottom:0;left:0;width:min(78vw,300px);background:#fff;z-index:90;transform:translateX(-102%);transition:transform .3s ease;display:flex;flex-direction:column;box-shadow:18px 0 44px rgba(2,10,30,.18)}
.drawer.open{transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}
.drawer-close{width:34px;height:34px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:15px;cursor:pointer;color:#475569}
.drawer-nav{padding:10px 6px;overflow:auto}
.drawer-nav a{display:block;padding:13px 16px;font-size:16px;color:#26334d;border-radius:9px}
.drawer-nav a.on{background:rgba(37,99,235,.09);color:var(--blue2);font-weight:600}
.drawer-foot{padding:16px;margin-top:auto;border-top:1px solid var(--line)}
.drawer-tel{font-size:13px;color:#64748b;margin-top:10px;text-align:center}
.drawer-mask{position:fixed;inset:0;background:rgba(6,15,35,.5);z-index:80;opacity:0;pointer-events:none;transition:.3s}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* ---------------- Hero ---------------- */
.hero{position:relative;color:#fff;background:radial-gradient(1200px 500px at 85% -10%,rgba(6,182,212,.35),transparent 60%),radial-gradient(900px 460px at -10% 110%,rgba(37,99,235,.4),transparent 55%),linear-gradient(115deg,#0a1a45 0%,#10275f 45%,#12386e 75%,#0e7490 120%);overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:linear-gradient(180deg,#000 20%,transparent 90%);mask-image:linear-gradient(180deg,#000 20%,transparent 90%)}
.hero-in{position:relative;z-index:2;padding:86px 0 60px;max-width:760px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;color:#8be8ff;border:1px solid rgba(139,232,255,.4);background:rgba(9,20,50,.4);padding:6px 16px;border-radius:30px;margin-bottom:22px}
.hero h1{font-size:46px;line-height:1.24;font-weight:800;letter-spacing:1px;background:linear-gradient(120deg,#fff,#bfe6ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:17px;color:#cddfff;margin:20px 0 30px;max-width:640px;line-height:1.85}
.hero-acts{display:flex;gap:14px;flex-wrap:wrap}
.hero-float{position:absolute;right:-30px;bottom:-40px;opacity:.12;transform:rotate(-8deg);font-weight:800;font-size:230px;letter-spacing:4px;color:#fff;pointer-events:none;user-select:none}
.hero-stats{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.14);margin-top:54px;padding:22px 0 0}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{display:flex;align-items:center;gap:14px}
.stat b{font-size:30px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:#9fb6dd}

/* ---------------- 通用区块 ---------------- */
.sec{padding:64px 0}
.sec.alt{background:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:30px}
.sec-tit{position:relative;padding-left:15px;line-height:1.3}
.sec-tit:before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:5px;border-radius:4px;background:var(--grad)}
.sec-tit b{font-size:26px;color:var(--navy);font-weight:800;display:block;letter-spacing:.5px}
.sec-tit span{font-size:13px;color:#94a3b8}
.sec-more{font-size:14px;color:var(--blue);font-weight:600;white-space:nowrap}
.sec-more:hover{color:var(--cyan)}

/* ---------------- 特性 ---------------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 20px;transition:.28s;position:relative;overflow:hidden}
.feat:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.feat .ic{width:52px;height:52px;border-radius:13px;background:rgba(37,99,235,.1);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feat .ic svg{width:26px;height:26px}
.feat h3{font-size:17px;margin-bottom:8px;color:#14213c}
.feat p{font-size:13.5px;color:#64748b}

/* ---------------- 产品/方案卡片 ---------------- */
.prod-grid,.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.soft-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.28s}
.soft-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.sc-cover{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,var(--g1,#2563eb),var(--g2,#06b6d4));color:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.sc-cover::after{content:'';position:absolute;inset:0;background:radial-gradient(240px 120px at 110% -20%,rgba(255,255,255,.28),transparent 70%)}
.sc-cover svg{width:64px;height:64px;position:relative;z-index:1;opacity:.95;filter:drop-shadow(0 6px 10px rgba(0,0,0,.18))}
.sc-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tag-reco,.tag-ph{position:absolute;z-index:2;top:10px;font-size:11px;color:#fff;padding:3px 9px;border-radius:6px;font-weight:600}
.tag-reco{left:10px;background:rgba(239,68,68,.92)}
.tag-ph{right:10px;background:rgba(2,10,30,.55);border:1px solid rgba(255,255,255,.4)}
.sc-body{padding:16px 18px 8px;display:flex;flex-direction:column;flex:1}
.sc-top{display:flex;align-items:center;gap:8px;margin-bottom:9px}
.sc-body h3{font-size:17.5px;color:#111c35;margin-bottom:8px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.sc-body p{font-size:13px;color:#64748b;min-height:40px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.c-meta{display:flex;align-items:center;gap:8px;font-size:11.5px;color:#94a3b8;margin-top:12px}
.c-meta i{width:1px;height:11px;background:#d7e0ee}
.sc-more{padding:12px 18px;font-size:13px;color:var(--blue);font-weight:600;border-top:1px dashed var(--line);margin-top:6px;background:#fbfdff}
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sol-card{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;align-items:center;transition:.28s}
.sol-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.sl-ic{width:74px;height:74px;flex:none;border-radius:16px;background:linear-gradient(135deg,#0891b2,#6366f1);color:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.sl-ic svg{width:34px;height:34px}
.sl-ic img{width:100%;height:100%;object-fit:cover}
.sl-body h3{font-size:17.5px;color:#111c35;margin-bottom:7px}
.sl-body p{font-size:13px;color:#64748b;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sl-link{display:inline-block;margin-top:9px;font-size:13px;color:var(--blue);font-weight:600}
/* 新闻 */
.news-list{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.news-row{display:flex;align-items:center;gap:18px;padding:16px 20px;border-bottom:1px solid #eef2f9;transition:.2s}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:#f6f9ff}
.news-row:hover .nr-title{color:var(--blue)}
.nr-date{flex:none;width:62px;text-align:center;background:rgba(37,99,235,.07);border-radius:10px;padding:7px 2px;color:var(--blue2)}
.nr-date b{display:block;font-size:18px;line-height:1.1}
.nr-date span{font-size:11px}
.nr-title{flex:1;font-size:14.5px;color:#26334d;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.nr-go{color:#c3d2e8;font-size:18px}
/* CTA */
.cta-band{background:var(--grad);color:#fff;border-radius:20px;padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;box-shadow:0 20px 46px rgba(37,99,235,.35)}
.cta-band h2{font-size:26px;font-weight:800;margin-bottom:6px}
.cta-band p{color:#dcebff;font-size:14.5px}
.cta-band .btn{background:#fff;color:var(--blue2);box-shadow:0 10px 24px rgba(0,0,0,.15)}

/* ---------------- 页脚 ---------------- */
.site-foot{background:#0b1a38;color:#aebfe0;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1.1fr 1.3fr;gap:34px;padding:56px 18px 40px}
.foot-about p{margin:16px 0;line-height:1.9;color:#8fa3c6}
.site-foot .brand-txt b{color:#fff}
.site-foot .brand-txt i{color:#7f95bc}
.foot-col h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-bottom:10px}
.foot-col h4:after{content:'';position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--grad)}
.foot-col a{display:block;color:#aebfe0;padding:5px 0;transition:.2s}
.foot-col a:hover{color:#fff;transform:translateX(3px)}
.fc-tel{font-size:22px;font-weight:800;color:#fff;margin-bottom:10px}
.foot-col p{color:#8fa3c6;padding:3px 0;line-height:1.8}
.foot-bar{border-top:1px solid rgba(255,255,255,.09);background:#081330}
.foot-bar-in{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:18px;font-size:12.5px;color:#7287ad}

/* ---------------- 内页 banner ---------------- */
.page-banner{background:radial-gradient(900px 300px at 100% 0%,rgba(6,182,212,.3),transparent 60%),linear-gradient(115deg,#0a1a45,#12386e 70%,#0e7490);color:#fff;padding:40px 0}
.page-banner .crumb{font-size:12.5px;color:#9fc0ef;margin-bottom:10px}
.page-banner .crumb a{color:#bfd7ff}
.page-banner .crumb a:hover{color:#fff}
.page-banner h1{font-size:30px;font-weight:800;letter-spacing:1px}
.page-banner p{color:#c9daff;margin-top:6px;font-size:14px}
.main{padding:40px 0 66px;min-height:50vh}

/* ---------------- 筛选/搜索 ---------------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;align-items:center;margin-bottom:26px}
.filter-bar .lb{font-size:13px;color:#94a3b8;margin-right:4px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#44506b;background:#f1f5fb;border:1px solid transparent;padding:7px 15px;border-radius:30px;cursor:pointer;transition:.2s}
.chip:hover{color:var(--blue);background:rgba(37,99,235,.08)}
.chip.on{background:var(--blue2);color:#fff;box-shadow:0 6px 14px rgba(37,99,235,.3)}
.chip .n{font-size:11px;opacity:.75}
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:22px}
.list-head h2{font-size:20px;color:#14213c}
.list-head .cnt{font-size:13px;color:#94a3b8}
.search-box{display:flex;gap:0;border:1px solid var(--line);border-radius:11px;overflow:hidden;background:#fff;max-width:340px}
.search-box input{flex:1;border:0;outline:0;padding:10px 14px;font-size:14px}
.search-box button{border:0;background:var(--grad);color:#fff;padding:0 18px;font-size:14px;cursor:pointer;font-weight:600}

/* ---------------- 详情页 ---------------- */
.detail-layout{display:grid;grid-template-columns:1fr 330px;gap:26px;align-items:start}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.d-head{padding:26px 30px 6px}
.d-tags{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.d-head h1{font-size:26px;color:#111c35;letter-spacing:.3px}
.d-summary{color:#55647f;font-size:14.5px;line-height:1.9;margin:14px 0 4px}
.d-meta{display:flex;flex-wrap:wrap;gap:6px 24px;font-size:12.5px;color:#94a3b8;padding:12px 0;margin:14px 0 0;border-top:1px dashed #e8eef8}
.d-meta b{color:#475569;font-weight:600}
.d-body{padding:20px 30px 34px}
.rich{font-size:15px;color:#33415e;line-height:1.95}
.rich h2,.rich h3,.rich h4{color:#14213c;margin:24px 0 12px;line-height:1.45}
.rich h3{font-size:19px}
.rich p{margin:10px 0}
.rich ul,.rich ol{margin:10px 0;padding-left:24px}
.rich ul{list-style:disc}
.rich ol{list-style:decimal}
.rich li{margin:5px 0}
.rich img{border-radius:10px;margin:12px 0}
.rich table{border-collapse:collapse;width:100%;margin:14px 0}
.rich table td,.rich table th{border:1px solid #e0e7f1;padding:8px 12px;font-size:14px}
.rich table th{background:#f1f5fb}
.rich a{color:var(--blue);text-decoration:underline}
.rich code{background:#f1f5fb;padding:2px 7px;border-radius:6px;font-size:13px;color:#be123c}
.rich blockquote{border-left:4px solid var(--blue);background:#f5f8ff;padding:10px 16px;margin:12px 0;color:#55647f;border-radius:0 8px 8px 0}
/* 下载面板 */
.dl-side{position:sticky;top:86px;display:flex;flex-direction:column;gap:18px}
.dl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.dl-card h3{font-size:16px;color:#14213c;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.dl-card h3 .em{width:6px;height:16px;border-radius:3px;background:var(--grad)}
.f-row{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:11px;padding:12px;margin-bottom:12px;transition:.2s;flex-wrap:wrap}
.f-row:last-child{margin-bottom:0}
.f-row:hover{border-color:#bcd0f4;box-shadow:0 6px 16px rgba(37,99,235,.07)}
.f-info{flex:1;min-width:150px}
.f-info .t{font-size:14px;color:#26334d;font-weight:600;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.f-info .m{font-size:11.5px;color:#94a3b8;margin-top:4px;display:flex;gap:12px;flex-wrap:wrap}
.dl-btn{flex:none}
.need-tip{background:#fffbeb;border:1px solid #fde68a;color:#b45309;font-size:12px;border-radius:9px;padding:9px 12px;margin-top:12px;line-height:1.7}
/* 侧栏小卡 */
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.side-card h3{font-size:15.5px;color:#14213c;display:flex;align-items:center;gap:8px;padding-bottom:12px;margin-bottom:6px;border-bottom:2px solid #f1f5fb}
.side-card h3 .em{width:5px;height:15px;border-radius:3px;background:var(--grad)}
.side-li{display:flex;gap:11px;padding:10px 0;border-bottom:1px dashed #eef2f9;font-size:13.5px;color:#44506b;align-items:center}
.side-li:last-child{border-bottom:0}
.side-li .no{flex:none;width:22px;height:22px;border-radius:6px;background:rgba(37,99,235,.09);color:var(--blue2);font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700}
.side-li:hover{color:var(--blue)}
.side-contact-tel{font-size:24px;font-weight:800;color:var(--blue2);margin:6px 0 2px}
.side-contact p{font-size:12.5px;color:#7b89a3;line-height:1.8}

/* ---------------- 单页（关于/联系我们） ---------------- */
.page-body{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:38px;max-width:980px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.c-info{display:grid;gap:14px}
.c-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;align-items:flex-start}
.c-item .ic{flex:none;width:46px;height:46px;border-radius:12px;background:rgba(37,99,235,.1);color:var(--blue2);display:flex;align-items:center;justify-content:center;font-size:20px}
.c-item b{display:block;color:#14213c;font-size:14.5px}
.c-item p{color:#64748b;font-size:13.5px;line-height:1.7;margin-top:2px}
.c-form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.c-form h3{font-size:18px;color:#14213c;margin-bottom:4px}
.c-form .cf-sub{font-size:13px;color:#94a3b8;margin-bottom:18px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field label{display:block;font-size:12.5px;color:#55647f;margin-bottom:6px}
.field input,.field textarea{width:100%;border:1px solid #d9e2f0;border-radius:10px;padding:11px 13px;font-size:14px;outline:0;transition:.2s;font-family:inherit;background:#fff;color:var(--ink)}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.field.full{grid-column:1/-1}

/* ---------------- 分页 ---------------- */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:32px;flex-wrap:wrap}
.pg{min-width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;background:#fff;border:1px solid var(--line);border-radius:9px;font-size:14px;color:#44506b;transition:.2s}
.pg:hover{color:var(--blue);border-color:#bcd0f4}
.pg.on{background:var(--blue2);border-color:var(--blue2);color:#fff;font-weight:600}
.pg-dot{color:#c0cbde}

/* ---------------- 弹窗 / toast ---------------- */
.dl-mask{position:fixed;inset:0;background:rgba(6,15,35,.62);z-index:120;display:flex;align-items:center;justify-content:center;padding:18px}
.dl-mask[hidden]{display:none}
.dl-box{background:#fff;border-radius:18px;max-width:400px;width:100%;padding:30px 28px 26px;position:relative;animation:pop .28s ease;box-shadow:0 30px 70px rgba(2,10,30,.4)}
@keyframes pop{from{transform:translateY(18px) scale(.97);opacity:0}to{transform:none;opacity:1}}
.dl-close{position:absolute;top:13px;right:13px;width:32px;height:32px;border:0;background:#f1f5fb;border-radius:9px;font-size:14px;cursor:pointer;color:#64748b}
.dl-ic{width:54px;height:54px;border-radius:15px;background:var(--grad);color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;box-shadow:0 10px 20px rgba(37,99,235,.3)}
.dl-box h3{font-size:19px;color:#14213c}
.dl-sub{font-size:12.5px;color:#94a3b8;margin:4px 0 16px}
.inp{margin-bottom:12px}
.inp input{width:100%;border:1px solid #d9e2f0;border-radius:11px;padding:12px 14px;font-size:15px;outline:0;transition:.2s}
.inp input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.dl-note{font-size:12px;color:#a5b1c6;background:#f6f8fd;border-radius:9px;padding:9px 12px;margin:4px 0 16px;line-height:1.7}
#dlGo{padding:13px}
.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,80px);background:#14213c;color:#fff;font-size:14px;padding:12px 22px;border-radius:11px;z-index:200;opacity:0;transition:.35s;box-shadow:0 12px 30px rgba(0,0,0,.25);pointer-events:none;max-width:84vw;text-align:center}
.toast.show{transform:translate(-50%,0);opacity:1}
.toast.ok{background:linear-gradient(120deg,#16a34a,#22c55e)}
.toast.err{background:#dc2626}

.about-fig{border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.empty-box{background:#fff;border:1px dashed var(--line);color:#9fb0cc;text-align:center;padding:44px 16px;border-radius:var(--r)}
.sc-cover .cover-lb{position:absolute;left:0;right:0;bottom:0;padding:20px 18px 12px;background:linear-gradient(transparent,rgba(2,10,30,.6));color:#fff;font-weight:600;font-size:15px;z-index:1}
.content-lang-tip{font-size:12px;color:#b0c0d8;background:rgba(255,255,255,.6);display:inline-block;padding:2px 9px;border-radius:20px;margin-left:8px;border:1px solid rgba(20,60,120,.1)}
.text-gradient{background:linear-gradient(120deg,#2563eb,#06b6d4);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ---------------- 自适应 ---------------- */
@media (max-width:1120px){
  .head-nav{display:none}
  .burger{display:flex}
  .head-actions .btn-head-cta{display:none}
  .head-in{justify-content:space-between}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
  .prod-grid,.list-grid{grid-template-columns:repeat(2,1fr)}
  .detail-layout{grid-template-columns:1fr}
  .dl-side{position:static}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:680px){
  body{font-size:14px}
  .hero-in{padding:58px 10px 40px}
  .hero h1{font-size:30px}
  .hero p{font-size:15px}
  .hero-float{display:none}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:18px 8px}
  .sec{padding:46px 0}
  .sec-tit b{font-size:21px}
  .prod-grid,.list-grid,.sol-grid{grid-template-columns:1fr}
  .sol-card{flex-direction:column;text-align:center;align-items:center}
  .cta-band{padding:30px 24px;text-align:center;justify-content:center}
  .page-banner h1{font-size:24px}
  .main{padding:26px 0 48px}
  .d-head{padding:20px 18px 2px}
  .d-body{padding:16px 18px 26px}
  .d-head h1{font-size:21px}
  .page-body{padding:22px 18px}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:40px 18px 26px}
  .filter-bar{padding:10px}
  .list-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .topbar .tb-tel{display:none}
  .brand-txt i{display:none}
  .brand-logo{width:38px;height:38px}
  .tb-left{max-width:52%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}