/* ==========================================================================
   精密机械企业站 · 样式表（深邃科技蓝 + 青色 · 大气冷静的精密制造调性）
   --------------------------------------------------------------------------
   自适应：PC / 平板 / 手机
   ★ 换主题色只改 :root 里 --brand 系列 + --accent + --glow，整站自动跟着变。
   ========================================================================== */

:root{
  /* ===== 主题色（改这里）===== */
  --brand:#1d4e9e;        /* 主色：logo 深蓝 */
  --brand-d:#0d2246;      /* 主色-最深：首屏底 / 页脚（logo 藏青） */
  --brand-dd:#173d7a;     /* 主色-深2：按钮悬停 */
  --accent:#7fb0e4;       /* 点缀色：银蓝（呼应 logo 银灰渐变；下划线/数字/按钮/深底文字） */
  --accent-d:#5f97d2;     /* 点缀色-深：悬停 */
  --accent-t:#1d4e9e;     /* 点缀色-文字：白/浅底上的蓝色文字用这个（≥7:1 达 AA） */
  --brand-l:#eef3fa;      /* 主色-浅底 */
  --glow:0 0 12px rgba(148,180,214,.45); /* 银蓝微光 */

  --ink:#141c26;          /* 主文字 */
  --ink-2:#5c6a7a;        /* 次文字 */
  --ink-3:#7c8b9b;        /* 弱文字：日期 / 辅助说明（对比度已调至 AA 级） */
  --line:#dde6f0;
  --soft:#f2f6fb;

  /* 深色区专用（首屏 / 页脚 / 数据条） */
  --foot-ink:#adc2d8;     /* 页脚正文 */
  --foot-ink-2:#8098b0;   /* 页脚弱文字 */
  --banner-ink:#cfe2f5;   /* 首屏副文字 */
  --crumb:#a7c2dc;        /* 面包屑 */

  --wrap:1900px;          /* 内容区最大宽度：超宽屏到此封顶，不再继续拉伸 */
  --wrap-pct:94%;         /* 内容区占屏幕宽度：94% = 左右各留 3%（想更满改 95%） */
  --radius:5px;
}

/* 备用配色（需要时整组替换上面 --brand / --accent / --glow）
   深空蓝紫： --brand:#3a3f9e; --brand-d:#0d0f28; --brand-dd:#2c3179; --accent:#00e0c0; --glow:0 0 12px rgba(0,224,192,.45);
   石墨电光： --brand:#1668e3; --brand-d:#0a0e14; --brand-dd:#1252b8; --accent:#4dd0ff; --glow:0 0 12px rgba(77,208,255,.45);
   科技青绿： --brand:#0e8f86; --brand-d:#04211f; --brand-dd:#0a6f68; --accent:#7be36a; --glow:0 0 12px rgba(123,227,106,.45);
*/

*{margin:0;padding:0;box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);font-size:16px;line-height:1.75;background:#fff;}
img{max-width:100%;display:block;border:0;}
a{text-decoration:none;color:inherit;transition:color .25s,background .25s,border-color .25s;}
ul{list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;outline:none;}
/* 内容区：默认跟着屏宽走（94%），窄屏在下面的断点里改用固定内边距 */
.wrap{width:var(--wrap-pct);max-width:var(--wrap);margin:0 auto;padding:0;}

/* ================= 头部 ================= */
.header{position:sticky;top:0;z-index:900;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.06);}
.header_row{display:flex;align-items:center;justify-content:space-between;height:84px;gap:20px;}
.logo img{height:50px;width:auto;}
.header_nav{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav{display:flex;align-items:center;}
.nav > li > a{display:block;padding:8px 17px;font-size:16px;font-weight:600;color:var(--ink);position:relative;}
.nav > li > a::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:3px;background:var(--accent);transform:translateX(-50%);transition:width .25s;}
.nav > li > a:hover,.nav > li.on > a{color:var(--brand);}
.nav > li > a:hover::after,.nav > li.on > a::after{width:58%;}
.menu_btn{display:none;width:34px;height:26px;flex-direction:column;justify-content:space-between;cursor:pointer;}
.menu_btn i{display:block;height:3px;background:var(--brand);border-radius:2px;transition:all .3s;}
.menu_btn.open i:nth-child(1){transform:translateY(11.5px) rotate(45deg);}
.menu_btn.open i:nth-child(2){opacity:0;}
.menu_btn.open i:nth-child(3){transform:translateY(-11.5px) rotate(-45deg);}

/* 中英文切换按钮（中文页选"中文"，英文页自动反选） */
.lang_sw{display:flex;flex:none;align-items:stretch;border:1px solid var(--line);border-radius:30px;overflow:hidden;background:#fff;}
.lang_sw a{display:block;padding:7px 16px;font-size:14px;font-weight:600;color:var(--ink-2);line-height:1.35;letter-spacing:.5px;white-space:nowrap;}
.lang_sw a.on{background:var(--brand);color:#fff;box-shadow:var(--glow);}
.lang_sw a:not(.on):hover{background:var(--brand-l);color:var(--brand);}

.mobile_nav{display:none;background:#fff;border-top:1px solid var(--line);max-height:calc(100vh - 84px);overflow:auto;}
.mobile_nav.open{display:block;}
.mobile_nav a{display:block;padding:13px 26px;border-bottom:1px solid #f1f4f7;font-size:15.5px;font-weight:600;}
.mobile_nav a.cur{color:var(--brand);border-left:3px solid var(--accent);background:var(--brand-l);}

/* ================= 首屏轮播 ================= */
.banner{position:relative;height:600px;overflow:hidden;background:#04121f;}
.banner .slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;}
.banner .slide.on{opacity:1;}
.banner .slide .bg{position:absolute;inset:0;background-size:cover;background-position:center;}
/* 遮罩：左侧压深让文字立住，右侧透出图片；整体叠一层冷调，统一成科技蓝 */
.banner .slide .bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(3,16,30,.90) 0%,rgba(4,24,45,.68) 40%,rgba(6,32,58,.30) 72%,rgba(8,40,70,.06) 100%);}

/* 科技光效：细网格 + 青色光晕 + 顶部高光，只作用于首屏，不影响内页横幅 */
.banner .fx{position:absolute;inset:0;z-index:2;pointer-events:none;}
.banner .fx::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(148,180,214,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(148,180,214,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 78% 88% at 76% 46%,#000 0%,rgba(0,0,0,.55) 48%,transparent 82%);
  mask-image:radial-gradient(ellipse 78% 88% at 76% 46%,#000 0%,rgba(0,0,0,.55) 48%,transparent 82%);}
.banner .fx::after{content:"";position:absolute;inset:0;
  background:radial-gradient(circle 680px at 84% 34%,rgba(148,180,214,.17) 0%,rgba(148,180,214,.06) 40%,transparent 72%),
             radial-gradient(circle 520px at 62% 88%,rgba(29,95,191,.26) 0%,transparent 70%),
             linear-gradient(180deg,rgba(148,180,214,.07) 0%,transparent 22%);}

.banner .stxt{position:relative;z-index:3;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;}
.banner .stxt h2{font-size:46px;line-height:1.36;letter-spacing:2px;text-shadow:0 2px 18px rgba(0,20,40,.55);}
.banner .stxt h2 em{color:var(--accent);font-style:normal;text-shadow:0 0 26px rgba(148,180,214,.42);}
.banner .stxt p{margin-top:18px;font-size:19px;letter-spacing:1px;color:var(--banner-ink);}
.banner .stxt .bs{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap;}
.banner_dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5;}
.banner_dots span{width:34px;height:5px;border-radius:3px;background:rgba(255,255,255,.45);cursor:pointer;transition:all .3s;}
.banner_dots span.on{background:var(--accent);}

/* ================= 按钮 ================= */
.btn{display:inline-block;padding:12px 34px;border:1px solid var(--brand);color:var(--brand);background:#fff;
  border-radius:3px;font-size:15px;font-weight:600;cursor:pointer;text-align:center;}
.btn:hover{background:var(--brand);color:#fff;}
.btn.pri{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn.pri:hover{background:var(--brand-dd);border-color:var(--brand-dd);}
.btn.orange{background:var(--accent);border-color:var(--accent);color:#08212c;}
.btn.orange:hover{background:var(--accent-d);border-color:var(--accent-d);color:#08212c;}
.btn.ghost{background:transparent;border-color:#fff;color:#fff;}
.btn.ghost:hover{background:#fff;color:var(--brand);}
.btn.sm{padding:9px 22px;font-size:14px;}

/* ================= 区块标题 ================= */
.sec{padding:84px 0;}
.sec.soft{background:var(--soft);}
.sec_head{text-align:center;margin-bottom:50px;}
.sec_head h2{font-size:34px;color:#111;letter-spacing:2px;display:inline-block;padding-bottom:16px;position:relative;}
.sec_head h2::after{content:"";position:absolute;left:50%;bottom:0;width:44px;height:4px;border-radius:2px;background:var(--accent);transform:translateX(-50%);}
.sec_head p{margin-top:12px;color:var(--ink-2);font-size:16px;letter-spacing:1px;}
.center{text-align:center;margin-top:44px;}

/* ================= 关于（左文右图） ================= */
.about_row{display:flex;gap:60px;align-items:center;}
.about_row .txt{flex:1.15;}
.about_row .txt h3{font-size:26px;color:var(--brand);margin-bottom:10px;}
.about_row .txt h4{font-size:17px;color:var(--accent-t);font-weight:600;margin-bottom:22px;}
.about_row .txt p{color:var(--ink-2);text-align:justify;}
.about_row .pic{flex:1;}
.about_row .pic img{border-radius:var(--radius);box-shadow:0 12px 34px rgba(29,95,191,.20);}

/* 数据条 */
/* 数据条：深色仪表盘感（深底 + 青数字 + 细网格） */
.counters{display:flex;margin-top:64px;background:var(--brand-d);border:1px solid rgba(148,180,214,.22);
  border-radius:var(--radius);overflow:hidden;color:#fff;position:relative;}
.counters::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(148,180,214,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(148,180,214,.07) 1px,transparent 1px);
  background-size:44px 44px;}
.counters li{flex:1;text-align:center;padding:26px 8px;border-right:1px solid rgba(255,255,255,.10);position:relative;}
.counters li:last-child{border-right:0;}
.counters .n{font-size:38px;font-weight:700;font-family:Arial,Helvetica,sans-serif;line-height:1.2;
  color:var(--accent);text-shadow:0 0 22px rgba(148,180,214,.32);}
.counters .n i{font-style:normal;font-size:19px;font-weight:600;margin-left:3px;color:var(--accent);}
.counters .t{font-size:14px;opacity:.82;margin-top:4px;letter-spacing:1px;}

/* ================= 产品 ================= */
.cate_tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:40px;}
.cate_tabs span,.cate_tabs a{display:inline-block;padding:8px 24px;border:1px solid var(--line);border-radius:30px;
  background:#fff;font-size:15px;color:var(--ink-2);cursor:pointer;transition:all .25s;text-decoration:none;}
.cate_tabs span:hover,.cate_tabs a:hover{border-color:var(--brand);color:var(--brand);}
.cate_tabs span.on,.cate_tabs a.on{background:var(--brand);border-color:var(--brand);color:#fff;}
.prod_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.prod_item{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  cursor:pointer;transition:all .3s;}
.prod_item:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(29,95,191,.16);border-color:var(--brand);}
.prod_item .im{position:relative;padding-top:75%;overflow:hidden;background:#f2f4f7;}
.prod_item .im img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.prod_item:hover .im img{transform:scale(1.06);}
.prod_item .cap{padding:14px 12px;text-align:center;font-size:15px;font-weight:600;color:#333;}
.prod_item .im a{display:block;}
.prod_item .cap a{display:block;color:inherit;text-decoration:none;}
.prod_item:hover .cap a{color:var(--brand);}

/* ================= 应用领域 ================= */
.app_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.app_card{position:relative;border-radius:var(--radius);overflow:hidden;background:#000;}
.app_card .im{padding-top:68%;position:relative;overflow:hidden;}
.app_card .im img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s;}
.app_card:hover .im img{transform:scale(1.07);}
.app_card .info{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:22px;color:#fff;background:linear-gradient(180deg,rgba(0,0,0,0) 30%,rgba(0,32,62,.84) 100%);}
.app_card .info h3{font-size:21px;letter-spacing:1px;}
.app_card .info p{font-size:13.5px;margin-top:6px;line-height:1.6;max-height:0;opacity:0;overflow:hidden;transition:all .4s;}
.app_card:hover .info p{max-height:130px;opacity:1;margin-top:10px;}
.app_card .info .go{color:var(--accent-t);font-size:13px;font-weight:600;margin-top:8px;letter-spacing:1px;}

/* ================= 新闻 ================= */
.news_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:36px;}
.news_card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  display:block;transition:all .3s;}
.news_card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(29,95,191,.15);}
.news_card .im{padding-top:56%;position:relative;overflow:hidden;}
.news_card .im img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.news_card .bd{padding:20px 22px 22px;}
.news_card .bd h3{font-size:17px;line-height:1.5;color:var(--ink);min-height:51px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news_card .bd p{margin-top:10px;font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news_card .bd .d{margin-top:12px;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--ink-3);}
.news_card .bd .d em{font-style:normal;color:var(--accent-t);font-weight:600;}
.news_row2{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:start;}
.news_row2 .news_grid{grid-template-columns:repeat(2,1fr);margin-bottom:0;}
.news_side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 26px;}
.news_side .tit{font-size:18px;font-weight:700;color:var(--brand);padding:14px 0;border-bottom:1px solid var(--line);}
.news_side a{display:block;padding:13px 0;border-bottom:1px dashed #eaeef3;font-size:14.5px;color:#444;}
.news_side a:last-child{border-bottom:0;}
.news_side a:hover{color:var(--brand);}
.news_side a .d{display:block;font-size:12.5px;color:#aaa;}

/* ================= 新闻详情页 ================= */
.art_wrap{max-width:1200px;margin:0 auto;}
.art_head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:32px;}
.art_head h1{font-size:30px;line-height:1.5;color:#111;letter-spacing:.5px;}
.art_head .meta{margin-top:16px;color:var(--ink-3);font-size:14px;display:flex;gap:20px;flex-wrap:wrap;align-items:center;}
.art_head .meta .tag{color:var(--brand);font-weight:600;}
.art_body{font-size:16px;color:#333;line-height:1.95;}
.art_body img{max-width:100%;border-radius:var(--radius);margin-bottom:26px;}
.art_body p{margin-bottom:20px;text-align:justify;}
.art_body h3{font-size:19px;color:var(--brand);margin:32px 0 14px;padding-left:12px;border-left:4px solid var(--accent);line-height:1.5;}
.art_body ul{margin:0 0 20px;}
.art_body li{position:relative;padding-left:20px;margin-bottom:10px;}
.art_body li::before{content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.art_foot{margin-top:44px;}
.art_nav{display:flex;gap:18px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;font-size:14.5px;}
.art_nav a{color:var(--ink-2);flex:1 1 0;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.art_nav a:hover{color:var(--brand);}
.art_nav a.back{flex:none;color:var(--brand);font-weight:600;padding:0 12px;}
.art_nav a.next{text-align:right;}
.art_cta{margin-top:30px;background:var(--brand-l);border-radius:var(--radius);padding:26px 30px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.art_cta p{font-size:17px;font-weight:600;color:var(--brand);}
.art_cta p span{display:block;font-size:14px;font-weight:400;color:var(--ink-2);margin-top:6px;}
.art_rel{margin-top:54px;}
.art_rel .tit{font-size:19px;font-weight:700;color:#111;margin-bottom:22px;padding-left:12px;border-left:4px solid var(--accent);line-height:1.4;}
.news_page{max-width:1240px;margin:0 auto;}
.news_item{display:flex;gap:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-bottom:22px;transition:all .3s;}
.news_item:hover{box-shadow:0 10px 26px rgba(29,95,191,.14);}
.news_item .pic{flex:0 0 300px;position:relative;min-height:180px;}
.news_item .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.news_item .bd{flex:1;padding:24px 30px 24px 0;}
.news_item .bd h3{font-size:18.5px;line-height:1.5;color:#111;}
.news_item .bd p{margin-top:10px;font-size:14.5px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news_item .bd .m{margin-top:14px;display:flex;align-items:center;gap:16px;font-size:13px;color:var(--ink-3);}
.news_item .bd .m em{font-style:normal;color:var(--accent-t);font-weight:600;}

/* ================= 内页头图 ================= */
.pbanner{height:300px;position:relative;display:flex;align-items:center;background-size:cover;background-position:center;}
.pbanner::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(3,16,30,.90),rgba(4,26,48,.58) 58%,rgba(6,34,60,.34));}
.pbanner .wrap{position:relative;z-index:2;color:#fff;}
.pbanner h1{font-size:36px;letter-spacing:2px;}
.pbanner p{margin-top:8px;color:var(--banner-ink);letter-spacing:1px;}
.pbanner .crumb{margin-top:10px;font-size:13px;color:var(--crumb);}
.pbanner .crumb a{color:var(--banner-ink);}

/* ================= 服务 ================= */
.svc_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.svc_card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:all .3s;}
.svc_card:hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(29,95,191,.17);}
.svc_card .im{padding-top:66%;position:relative;overflow:hidden;}
.svc_card .im img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.svc_card:hover .im img{transform:scale(1.06);}
.svc_card .bd{padding:24px 24px 28px;}
.svc_card .bd h3{font-size:19px;color:#111;margin-bottom:10px;}
.svc_card .bd p{font-size:14.5px;color:var(--ink-2);text-align:justify;}
.svc_card .bd .more{display:inline-block;margin-top:14px;color:var(--brand);font-size:14px;font-weight:600;}
.svc_sec{display:flex;gap:50px;align-items:center;padding:28px 0;}
.svc_sec.rev{flex-direction:row-reverse;}
.svc_sec .pic{flex:1;border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 28px rgba(0,0,0,.1);}
.svc_sec .txt{flex:1.15;}
.svc_sec .txt h3{font-size:24px;color:var(--brand);margin-bottom:6px;}
.svc_sec .txt h4{font-size:15px;color:var(--accent-t);font-weight:600;margin-bottom:16px;}
.svc_sec .txt p{color:var(--ink-2);text-align:justify;}
.mat_table{width:100%;border-collapse:collapse;}
.mat_table th,.mat_table td{border:1px solid var(--line);padding:13px 18px;font-size:14.5px;text-align:left;}
.mat_table th{background:var(--brand-d);color:#fff;font-weight:600;border-color:rgba(148,180,214,.25);}
.mat_table td{color:var(--ink-2);}
.mat_table td:first-child{color:#333;font-weight:700;background:var(--soft);width:150px;}

/* ================= 关于页 ================= */
.about_intro{display:flex;gap:50px;align-items:flex-start;}
.about_intro .pic{flex:1;}
.about_intro .pic img{border-radius:var(--radius);}
.about_intro .txt{flex:1.2;}
.about_intro .txt h3{font-size:24px;color:var(--brand);line-height:1.6;margin-bottom:18px;}
.about_intro .txt p{color:var(--ink-2);text-align:justify;margin-bottom:14px;}
.culture_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.culture_card{background:#fff;border-radius:var(--radius);border-top:4px solid var(--brand);
  box-shadow:0 6px 22px rgba(0,0,0,.06);padding:34px 30px;}
.culture_card h3{font-size:20px;color:#111;}
.culture_card em{display:block;font-style:normal;font-size:12px;letter-spacing:2px;color:#aaa;margin:4px 0 14px;text-transform:uppercase;}
.culture_card p{font-size:14.5px;color:var(--ink-2);text-align:justify;}
.adv_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.adv_card{background:var(--brand-d);border:1px solid rgba(148,180,214,.20);color:#fff;border-radius:var(--radius);padding:30px 26px;position:relative;
  overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s;}
.adv_card:hover{transform:translateY(-5px);border-color:rgba(148,180,214,.55);box-shadow:0 14px 34px rgba(148,180,214,.14);}
.adv_card .no{position:absolute;right:14px;top:6px;font-size:56px;font-weight:700;font-family:Arial,sans-serif;color:rgba(148,180,214,.16);}
.adv_card h3{font-size:19px;margin-bottom:10px;color:#fff;}
.adv_card p{font-size:13.5px;opacity:.88;text-align:justify;}
.cert_grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cert_grid figure{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.cert_grid figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.cert_grid figcaption{padding:12px;text-align:center;font-size:14.5px;color:#444;}
.partner_grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.partner_grid .pc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;padding:18px;filter:grayscale(1);transition:all .3s;}
.partner_grid .pc:hover{filter:grayscale(0);border-color:var(--brand);}
.partner_grid .pc img{max-height:62px;object-fit:contain;}

/* ================= 应用领域页 ================= */
.appdetail{display:flex;gap:40px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-bottom:28px;transition:box-shadow .3s;}
.appdetail:hover{box-shadow:0 12px 30px rgba(29,95,191,.15);}
.appdetail .pic{flex:0 0 40%;position:relative;min-height:270px;}
.appdetail .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.appdetail .bd{flex:1;padding:34px 38px;}
.appdetail .bd h3{font-size:22px;color:var(--brand);}
.appdetail .bd p{margin-top:12px;font-size:15px;color:var(--ink-2);text-align:justify;}
.appdetail .bd ul{margin-top:12px;padding-left:0;}
.appdetail .bd ul li{position:relative;padding-left:18px;color:var(--ink-2);font-size:14.5px;margin-top:6px;}
.appdetail .bd ul li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--accent);}

/* ================= 联系页 ================= */
.contact_row{display:grid;grid-template-columns:1fr 1.25fr;gap:28px;}
.cinfo{background:var(--brand-d);border:1px solid rgba(148,180,214,.20);color:#fff;border-radius:var(--radius);padding:40px 38px;position:relative;overflow:hidden;}
.cinfo::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle 420px at 88% 8%,rgba(148,180,214,.14),transparent 70%);}
.cinfo > *{position:relative;}
.cinfo h3{font-size:24px;margin-bottom:4px;}
.cinfo .sub{font-size:14px;opacity:.85;margin-bottom:26px;}
.cinfo .ci{display:flex;gap:14px;padding:16px 0;border-top:1px solid rgba(255,255,255,.12);}
.cinfo .ci .ic{flex:0 0 42px;height:42px;border-radius:50%;background:rgba(148,180,214,.16);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:18px;}
.cinfo .ci .lb{font-size:13px;opacity:.82;}
.cinfo .ci .vl{font-size:16px;font-weight:600;line-height:1.5;word-break:break-all;}
.cform{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px;}
.cform h3{font-size:22px;color:#111;margin-bottom:24px;}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.fgrid .full{grid-column:1/-1;}
.cform label{display:block;font-size:14px;font-weight:600;color:#444;margin-bottom:6px;}
.cform input,.cform textarea{width:100%;border:1px solid var(--line);border-radius:4px;padding:11px 14px;
  font-size:14.5px;background:#fafbfc;transition:all .25s;}
.cform input:focus,.cform textarea:focus{border-color:var(--brand);background:#fff;}
.cform textarea{min-height:130px;resize:vertical;}
.quote_grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:52px;}
.quote_cell{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
  text-align:center;transition:all .3s;}
.quote_cell:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(29,95,191,.14);}
.quote_cell .qi{width:54px;height:54px;margin:0 auto 14px;border-radius:50%;background:rgba(29,95,191,.10);
  color:var(--brand);font-size:23px;display:flex;align-items:center;justify-content:center;}
.quote_cell h4{font-size:16.5px;color:#111;margin-bottom:6px;}
.quote_cell p{font-size:13.5px;color:var(--ink-2);}

/* ================= 页脚 ================= */
.footer{background:var(--brand-d);color:var(--foot-ink);}
.footer_row{display:flex;gap:56px;padding:64px 0 46px;}
.footer_nav{flex:1.7;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.footer_nav .tit a{display:block;color:#fff;font-size:16.5px;font-weight:600;margin-bottom:14px;}
.footer_nav li a{display:block;padding:4px 0;font-size:13.5px;color:var(--foot-ink);}
.footer_nav li a:hover{color:#fff;}
.footer_contact{flex:1.15;}
.footer_contact .lb{font-size:13px;opacity:.75;margin-top:16px;}
.footer_contact .lb:first-child{margin-top:0;}
.footer_contact .vl{font-size:16.5px;font-weight:600;color:#fff;}
.footer_contact .vl.big{font-size:22px;font-family:Arial,sans-serif;color:var(--accent);}.footer_qr{text-align:center;}
.footer_qr img{width:110px;height:110px;background:#fff;padding:5px;border-radius:6px;margin:0 auto;}
.footer_qr p{font-size:13px;margin-top:10px;color:var(--foot-ink);}
.footer_copy{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:13px;color:var(--foot-ink-2);}
.footer_copy a{color:var(--foot-ink-2);}
.footer_copy a:hover{color:#fff;}

.pagination{text-align:center;padding:30px}
.pagination a,.pagination span{padding:8px 14px;margin:0 3px;border:1px solid #ddd;text-decoration:none;color:#333;border-radius:4px;font-size:14px}
.pagination span{background:#1a56db;color:#fff;border-color:#1a56db}
.pagination a:hover{background:#ebf4ff}

/* ================= 通用 ================= */
.gototop{position:fixed;right:26px;bottom:34px;width:46px;height:46px;border-radius:6px;background:var(--brand);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;
  opacity:0;visibility:hidden;transition:all .3s;z-index:800;box-shadow:0 6px 18px rgba(6,21,39,.45);}
.gototop.show{opacity:1;visibility:visible;}
.gototop:hover{background:var(--brand-dd);}
.img_modal{position:fixed;inset:0;background:rgba(8,22,40,.85);z-index:990;display:none;
  flex-direction:column;align-items:center;justify-content:center;padding:30px;}
.img_modal.open{display:flex;}
.img_modal img{max-width:min(880px,90vw);max-height:76vh;border-radius:6px;background:#fff;object-fit:contain;}
.img_modal .cap{color:#fff;margin-top:16px;font-size:16px;letter-spacing:1px;}
.img_modal .x{position:absolute;top:18px;right:26px;color:#fff;font-size:34px;line-height:1;cursor:pointer;opacity:.85;}
.img_modal .x:hover{opacity:1;}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}
@media print{.reveal{opacity:1;transform:none;}}

/* ================= 响应式 ================= */
@media (max-width:1180px){
  .prod_grid{grid-template-columns:repeat(3,1fr);}
  .app_grid,.svc_grid,.culture_grid{grid-template-columns:repeat(2,1fr);}
  .adv_grid{grid-template-columns:repeat(2,1fr);}
  .partner_grid{grid-template-columns:repeat(4,1fr);}
  .quote_grid{grid-template-columns:repeat(2,1fr);}
  .banner .stxt h2{font-size:36px;}
  .footer_row{flex-wrap:wrap;gap:40px;}
  .footer_nav{flex:1 1 100%;}
}
@media (max-width:1024px){
  .nav > li > a{padding:8px 9px;font-size:14.5px;}
  .logo img{height:44px;}
  .header_nav{gap:10px;}
}
@media (max-width:860px){
  .wrap{width:auto;padding:0 20px;}
  .header_row{height:66px;gap:12px;}
  .header_nav{gap:10px;}
  .logo img{height:38px;}
  .nav{display:none;}
  .menu_btn{display:flex;}
  .banner{height:420px;}
  .banner .stxt h2{font-size:27px;}
  .banner .stxt p{font-size:15px;}
  .sec{padding:56px 0;}
  .sec_head h2{font-size:26px;}
  .about_row,.svc_sec,.svc_sec.rev,.about_intro{flex-direction:column;gap:30px;}
  .counters{flex-wrap:wrap;}
  .counters li{flex:0 0 33.33%;padding:18px 6px;border-bottom:1px solid rgba(255,255,255,.18);}
  .counters .n{font-size:28px;}
  .prod_grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .news_grid,.news_row2{grid-template-columns:1fr;}
  .news_row2 .news_grid{grid-template-columns:repeat(2,1fr);}
  .art_rel .news_grid{grid-template-columns:repeat(2,1fr);}
  .art_head h1{font-size:22px;}
  .art_body{font-size:15.5px;line-height:1.9;}
  .art_body h3{font-size:17px;margin-top:26px;}
  .art_nav{flex-direction:column;align-items:flex-start;gap:10px;}
  .art_nav a,.art_nav a.next{text-align:left;white-space:normal;}
  .art_cta{padding:20px;gap:14px;}
  .art_cta p{font-size:16px;}
  .art_rel{margin-top:40px;}
  .contact_row{grid-template-columns:1fr;}
  .fgrid{grid-template-columns:1fr;}
  .pbanner{height:210px;}
  .pbanner h1{font-size:26px;}
  .appdetail{flex-direction:column;}
  .appdetail .pic{flex:none;min-height:210px;}
  .appdetail .bd{padding:24px;}
  .news_item{flex-direction:column;}
  .news_item .pic{flex:none;min-height:0;padding-top:56%;}
  .news_item .bd{padding:20px 22px 24px;}
  .footer_row{padding:44px 0 34px;}
  .footer_nav{grid-template-columns:repeat(2,1fr);}
  .img_modal .x{top:8px;right:14px;}
}
@media (max-width:520px){
  .header_row{gap:8px;}
  .header_nav{gap:8px;}
  .logo img{height:32px;}
  .lang_sw a{padding:5px 10px;font-size:12px;}
  .app_grid,.svc_grid,.culture_grid,.adv_grid,.quote_grid{grid-template-columns:1fr;}
  .prod_grid{grid-template-columns:repeat(2,1fr);}
  .partner_grid{grid-template-columns:repeat(3,1fr);gap:10px;}
  .cert_grid{grid-template-columns:1fr;}
  .banner{height:360px;}
  .banner .stxt h2{font-size:22px;}
  .counters li{flex:0 0 50%;}
  .cate_tabs span,.cate_tabs a{padding:6px 16px;font-size:13px;}
  .news_row2 .news_grid{grid-template-columns:1fr;}
  .art_rel .news_grid{grid-template-columns:1fr;}
}