/* ==========================================================================
   奥讯科技官网 - 全站样式
   ========================================================================== */

/* ---------- 字体（HarmonyOS Sans SC） ---------- */
@font-face{
  font-family:"HarmonyOS Sans SC";font-style:normal;font-weight:400;
  src:url("../HarmonyOS_SansSC/HarmonyOS_SansSC_Regular.ttf") format("truetype");
  font-display:swap;
}
@font-face{
  font-family:"HarmonyOS Sans SC";font-style:normal;font-weight:500;
  src:url("../HarmonyOS_SansSC/HarmonyOS_SansSC_Medium.ttf") format("truetype");
  font-display:swap;
}
@font-face{
  font-family:"HarmonyOS Sans SC";font-style:normal;font-weight:700;
  src:url("../HarmonyOS_SansSC/HarmonyOS_SansSC_Bold.ttf") format("truetype");
  font-display:swap;
}
@font-face{
  font-family:"HarmonyOS Sans SC";font-style:normal;font-weight:900;
  src:url("../HarmonyOS_SansSC/HarmonyOS_SansSC_Black.ttf") format("truetype");
  font-display:swap;
}

:root{
  --blue:        #3269ff;   /* 主按钮 */
  --blue-bright: #069eff;   /* 导航选中/链接 */
  --blue-royal:  #0745ff;   /* 数据数字 */
  --blue-deep:   #0a6cff;
  --blue-soft:   #eef4ff;

  --navy:        #0e1420;   /* 顶部导航 */
  --navy-2:      #151b26;   /* 页脚 */
  --dark:        #0e1217;   /* 深色区块 */
  --dark-2:      #131923;
  --dark-card:   #11151a;

  --gray-bg:     #fafafa;
  --line:        #e9edf3;

  --text:        #090f19;
  --text-2:      #4a4f57;
  --text-3:      #8a9099;

  --container:   1200px;
  --header-h:    80px;
  --radius:      12px;

  --font: "HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num: "HarmonyOS Sans SC","YouSheBiaoTiHei","PingFang SC","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:14px;
  line-height:1.7;
  color:var(--text);
  background:#fff;
  padding-top:var(--header-h);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .25s;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}

.container{width:var(--container);max-width:calc(100% - 48px);margin:0 auto;}

/* ---------- 通用标题 ---------- */
.sec-head{text-align:center;margin-bottom:56px;}
.sec-title{font-size:30px;font-weight:700;line-height:1.35;letter-spacing:1px;}
.sec-sub{font-size:16px;color:var(--text-3);margin-top:10px;}
.on-dark .sec-title{color:#fff;}
.on-dark .sec-sub{color:rgba(255,255,255,.6);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:45px;padding:0 26px;border-radius:999px;border:0;cursor:pointer;
  font-size:18px;line-height:1;white-space:nowrap;
  transition:transform .2s,box-shadow .25s,background .25s,color .25s;
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(50,105,255,.28);}
.btn-primary:hover{background:#2358f0;transform:translateY(-2px);box-shadow:0 12px 26px rgba(50,105,255,.36);}
.btn-ghost{background:transparent;color:var(--blue);border:1px solid var(--blue);}
.btn-ghost:hover{background:var(--blue);color:#fff;}
.btn-sm{height:34px;font-size:14px;padding:0 18px;}
.btn-block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:900;
  background:var(--navy);
}
.nav-inner{display:flex;align-items:center;height:100%;}
.logo{display:flex;align-items:center;margin-right:47px;}
.logo img{height:31px;width:auto;}
.main-nav{display:flex;align-items:center;gap:41px;flex:1;}
.main-nav > a,.main-nav .nav-item > a{
  position:relative;font-size:18px;color:#fff;padding:26px 0;display:inline-block;
}
.main-nav > a::after,.main-nav .nav-item > a::after{
  content:"";position:absolute;left:50%;bottom:14px;width:0;height:3px;border-radius:2px;
  background:var(--blue-bright);transform:translateX(-50%);transition:width .25s;
}
.main-nav > a:hover,.main-nav .nav-item:hover > a{color:var(--blue-bright);}
.main-nav > a:hover::after,.main-nav .nav-item:hover > a::after{width:100%;}
.main-nav > a.active,.main-nav .nav-item.active > a{color:var(--blue-bright);}
.main-nav > a.active::after,.main-nav .nav-item.active > a::after{width:100%;}

.nav-item{position:relative;}
.dropdown{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);
  min-width:160px;background:#1b2a3d;border-radius:0 0 8px 8px;
  padding:6px 0;opacity:0;visibility:hidden;transition:all .25s;box-shadow:0 14px 30px rgba(0,0,0,.35);
}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.dropdown a{display:block;padding:9px 22px;color:rgba(255,255,255,.82);font-size:15px;}
.dropdown a:hover{background:#22374f;color:#fff;}
.nav-cta{margin-left:auto;}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.3s;}

/* ---------- 首屏 banner ---------- */
.hero{
  position:relative;height:460px;background-size:cover;background-position:center;
  display:flex;align-items:center;
}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.5),rgba(255,255,255,0) 60%);}
.hero .container{position:relative;z-index:2;}
.hero h1{font-size:36px;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:1px;}
.hero p{font-size:16px;color:#3d4450;margin-top:14px;}
.hero .btn{margin-top:34px;}
.hero-center{justify-content:center;text-align:center;}
.hero-center::before{background:linear-gradient(180deg,rgba(6,14,26,.45),rgba(6,14,26,.55));}
.hero-center h1{font-size:48px;color:#fff;}
.hero-center p{position:relative;}
.hero-center p{font-size:18px;color:rgba(255,255,255,.85);margin-top:14px;}

/* ---------- 首页指标条 ---------- */
.stats-bar{
  position:relative;z-index:3;margin-top:-82px;
  background:linear-gradient(90deg,#f3f9fe 0%,#eaf4fd 50%,#f3f9fe 100%);
  border-bottom:1px solid #e6eef7;
  box-shadow:0 -6px 18px rgba(140,175,215,.12);
}
.stats-inner{display:flex;justify-content:space-between;align-items:center;padding:12px 36px;height:82px;}
.stat{display:flex;flex-direction:column;}
.stat .num{font-family:var(--font-num);font-size:42px;font-weight:900;line-height:1;color:var(--blue-royal);letter-spacing:1px;}
.stat .num small{font-size:16px;margin-left:2px;}
.stat .lbl{font-size:14px;color:#666;margin-top:6px;}

/* ---------- 首页 行业解决方案 ---------- */
.section{padding:80px 0;}
.bg-dark{background:var(--dark);}
.bg-dark-2{background:var(--dark-2);}
.bg-gray{background:var(--gray-bg);}


.sol-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px 25px;}
.sol-card{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  height:203px;padding:18px 20px;border-radius:10px;text-align:center;overflow:hidden;cursor:pointer;
  background:linear-gradient(160deg,#1a222c,#12171e);
  border:1px solid rgba(255,255,255,.06);
  transition:border-color .35s,box-shadow .35s,transform .35s;
}
/* 选中/悬停时的蓝色底（PSD 选中卡渐变） */
.sol-card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;
  background:linear-gradient(160deg,#3f7cf7 0%,#0a5cf0 72%);
}
/* 底部水波纹（PSD 图层 1241 / 图层 1241 拷贝） */
.sol-card::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:50px;z-index:1;pointer-events:none;
  background:url("../images/home/sol-wave-dark.png") center bottom/100% 50px no-repeat;
}
.sol-card > *{position:relative;z-index:2;}
.sol-card .ico{width:48px;height:48px;margin-bottom:22px;transition:height .35s,margin .35s,opacity .35s;}
.sol-card h3{font-size:18px;color:#fff;font-weight:500;line-height:1.4;}
.sol-card p{font-size:14px;color:rgba(255,255,255,.5);margin-top:8px;line-height:1.5;}
.sol-card .more{
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  height:0;max-height:0;opacity:0;overflow:hidden;padding:0 22px;border-radius:999px;
  background:rgba(255,255,255,.22);color:#fff;font-size:14px;white-space:nowrap;
  transition:height .35s,max-height .35s,opacity .35s,margin .35s;
}
/* 选中态与悬停态样式一致 */
.sol-card.is-active,
.sol-card:hover{
  border-color:transparent;box-shadow:0 18px 38px rgba(10,92,240,.35);transform:translateY(-2px);
}
.sol-card.is-active::before,
.sol-card:hover::before{opacity:1;}
.sol-card.is-active::after,
.sol-card:hover::after{background-image:url("../images/home/sol-wave-blue.png");}
.sol-card.is-active .ico,
.sol-card:hover .ico{height:0;margin-bottom:0;opacity:0;}
.sol-card.is-active p,
.sol-card:hover p{color:rgba(255,255,255,.86);}
.sol-card.is-active .more,
.sol-card:hover .more{height:32px;max-height:32px;opacity:1;margin-top:20px;}
.sol-card:focus-visible{outline:2px solid #8fb4ff;outline-offset:2px;}

/* ---------- 客户画像 ---------- */
.cust-row{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:8px;}
.cust-card{
  background:#fff;border-radius:10px;text-align:center;padding:26px 12px 16px;
  box-shadow:0 6px 22px rgba(23,42,77,.07);border:1px solid #f0f3f8;
  transition:.3s;
}
.cust-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(23,42,77,.12);}
.cust-card .logo-box{height:52px;display:flex;align-items:center;justify-content:center;}
.cust-card img{max-height:44px;width:auto;object-fit:contain;}
.cust-card .tag{
  display:inline-block;margin-top:14px;font-size:12px;color:var(--blue-deep);
  background:var(--blue-soft);border-radius:4px;padding:2px 12px;
}

.scene-wrap{margin-top:72px;}
.scene-head{margin-bottom:22px;}
.scene-head h3{
  display:inline-block;font-size:24px;font-weight:700;color:#1c2230;letter-spacing:1px;line-height:1.3;
  background:linear-gradient(to top, #06a1ff 0%, #06a1ff 40%, transparent 40%);
  padding:0 3px;
}
.accordion{display:flex;gap:10px;height:360px;overflow:visible;}
.acc-item{
  position:relative;flex:1;background-size:cover;background-position:center;cursor:pointer;border-radius:10px;overflow:hidden;
  transition:flex .5s cubic-bezier(.44,.05,.3,1);overflow:hidden;
}
.acc-item.is-active{flex:1.8;}
.acc-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,10,22,.15),rgba(4,10,22,.82));transition:.4s;}
.acc-item.is-active::after{background:linear-gradient(180deg,rgba(4,10,22,.05) 40%,rgba(4,10,22,.9));}
.acc-item .acc-body{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;z-index:2;color:#fff;}
.acc-item h4{font-size:24px;font-weight:700;white-space:nowrap;}
.acc-item .acc-desc{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.85);max-height:0;opacity:0;overflow:hidden;transition:.45s;white-space:nowrap;}
.acc-item.is-active .acc-desc{max-height:140px;opacity:1;margin-top:10px;}
.acc-desc b{color:#2fc6ff;font-weight:500;}

/* ---------- 成功案例(首页) ---------- */
.case-tabs{
  display:flex;width:100%;background:#fff;border-radius:8px;
  box-shadow:0 18px 44px rgba(0,0,0,.30);margin-bottom:64px;
}
.case-tab{
  position:relative;flex:1 1 0;min-width:0;height:76px;border:0;background:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:12px;
  transition:background .28s,color .28s;white-space:nowrap;color:#3f454e;
}
.case-tab:first-child{border-radius:8px 0 0 8px;}
.case-tab:last-child{border-radius:0 8px 8px 0;}
.case-tab .idx{
  font-family:var(--font-num);font-size:34px;font-weight:900;line-height:1;
  color:var(--blue);letter-spacing:1px;transform:skewX(-12deg);
}
.case-tab .sep{width:2px;height:34px;background:#e2e7ee;transform:skewX(-18deg);transition:background .28s;}
.case-tab .txt{font-size:20px;font-weight:500;}
.case-tab:hover{background:#f1f5fb;}
.case-tab.is-active{background:var(--blue);color:#fff;}
.case-tab.is-active .idx{color:#fff;}
.case-tab.is-active .sep{background:rgba(255,255,255,.55);}
.case-tab.is-active::after{
  content:"";position:absolute;left:50%;bottom:-11px;transform:translateX(-50%);
  width:0;height:0;border-left:11px solid transparent;border-right:11px solid transparent;
  border-top:11px solid var(--blue);
}
.case-panel{display:none;}
.case-panel.is-active{display:grid;grid-template-columns:1.2fr 1fr;gap:12px;align-items:center;}
.case-panel .shot img{width:100%;filter:drop-shadow(0 30px 50px rgba(0,0,0,.45));}
.case-panel h3{font-size:30px;font-weight:700;color:#fff;}
.case-panel .bar{width:34px;height:3px;border-radius:2px;background:var(--blue);margin:16px 0 20px;}
.case-panel p{font-size:16px;color:rgba(255,255,255,.66);line-height:1.95;max-width:460px;}
.case-metrics{display:flex;gap:90px;margin-top:44px;}
.metric .m-num{font-family:var(--font-num);font-size:42px;font-weight:900;color:#fff;line-height:1;}
.metric .m-lbl{font-size:14px;color:rgba(255,255,255,.55);margin-top:8px;}

/* ---------- 公司介绍(首页) ---------- */
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-split h3{font-size:24px;font-weight:500;margin-bottom:22px;}
.about-split .txt{font-size:14px;line-height:2;color:var(--text-2);text-align:justify;}
.about-card{
  position:relative;border-radius:14px;overflow:hidden;min-height:347px;
  background-size:cover;background-position:center;box-shadow:0 20px 46px rgba(23,42,77,.18);
  display:flex;flex-direction:column;justify-content:center;padding:44px 48px;color:#fff;
}
.about-card h4{font-size:36px;font-weight:700;letter-spacing:2px;font-family:var(--font-num),var(--font);}
.about-card p{font-size:14px;line-height:1.95;color:rgba(255,255,255,.9);margin-top:18px;}
.about-cta{text-align:center;margin-top:56px;}

/* ---------- 合作伙伴 ---------- */
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.partner-card{
  background:#fff;border-radius:10px;height:118px;display:flex;align-items:center;justify-content:center;
  padding:18px;transition:.3s;box-shadow:0 4px 14px rgba(23,42,77,.04);
}
.partner-card:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(23,42,77,.12);}
.partner-card img{max-height:64px;width:auto;object-fit:contain;filter:grayscale(0);transition:.3s;}
.partner-card:hover img{filter:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy-2);color:rgba(255,255,255,.62);}
.footer-main{display:grid;grid-template-columns:1fr 1fr 1fr 1.6fr .9fr;gap:24px;padding:38px 0 26px;}
.footer-col h4{font-size:18px;color:#fff;font-weight:500;margin-bottom:16px;}
.footer-col li{font-size:14px;line-height:2.05;}
.footer-col a:hover{color:#fff;}
.footer-info li{display:flex;gap:8px;font-size:14px;line-height:2.05;}
.footer-info .ico{flex:0 0 14px;display:inline-block;margin-top:8px;opacity:.7;font-size:13px;line-height:1;}
.footer-info li{align-items:flex-start;line-height:1.9;margin-bottom:6px;}
.footer-qr{text-align:center;}
.footer-qr img{width:100px;height:100px;margin:0 auto;background:#fff;border-radius:6px;padding:4px;}
.footer-bottom{background:var(--navy);padding:16px 0;font-size:13px;color:rgba(255,255,255,.42);}
.footer-bottom .container{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.footer-bottom .divider{width:1px;height:14px;background:rgba(255,255,255,.18);}
.link-select{
  display:inline-flex;align-items:center;justify-content:space-between;gap:8px;
  min-width:300px;height:34px;padding:0 14px;border-radius:5px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.75);
  font-size:13px;
}
.footer-bottom .copy{margin-left:auto;}
.footer-bottom .icp{color:#7ea8ff;text-decoration:underline;transition:color .25s;}
.footer-bottom .icp:hover{color:#a9c6ff;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:40px;bottom:60px;width:44px;height:44px;border-radius:50%;
  background:#fff;box-shadow:0 8px 22px rgba(0,0,0,.18);display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;transition:.35s;z-index:500;border:0;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top img{width:19px;height:21px;}

/* ---------- 弹窗 ---------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(9,15,25,.55);z-index:1000;
  display:flex;align-items:center;justify-content:center;padding:24px;
  opacity:0;visibility:hidden;transition:.3s;backdrop-filter:blur(3px);
}
.modal-mask.show{opacity:1;visibility:visible;}
.modal{
  position:relative;width:1200px;max-width:100%;background:#fff;border-radius:10px;overflow:hidden;
  display:grid;grid-template-columns:468px 1fr;transform:translateY(20px);transition:.35s;
}
.modal-mask.show .modal{transform:translateY(0);}
.modal-photo{background-size:cover;background-position:center;min-height:572px;}
.modal-body{padding:48px 65px 30px 100px;}
.modal-close{
  position:absolute;top:18px;right:20px;width:26px;height:26px;border-radius:50%;
  border:1px solid #d9dee6;background:#fff;color:#9aa2ad;font-size:15px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.25s;
}
.modal-close:hover{background:#f2f5f9;color:#5a6470;}
.modal h3{font-size:24px;font-weight:700;text-align:center;padding-bottom:14px;position:relative;}
.modal h3::after{content:"";position:absolute;left:50%;bottom:0;width:34px;height:3px;border-radius:2px;background:var(--blue);transform:translateX(-50%);}
.form-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px 33px;margin-top:30px;}
.field{display:flex;align-items:center;font-size:14px;color:var(--text);min-width:0;}
.field > label{flex:0 0 84px;text-align:right;padding-right:8px;white-space:nowrap;}
.field input{
  flex:1;height:34px;border:1px solid #dfe4ea;border-radius:4px;padding:0 10px;
  font-size:13px;color:var(--text);outline:none;transition:.2s;font-family:inherit;min-width:0;
}
.field input::placeholder{color:#b3b9c2;}
.field input:focus{border-color:var(--blue);box-shadow:0 0 0 2px rgba(50,105,255,.12);}
.field-verify{gap:8px;}
.field-verify .code-btn{
  flex:0 0 auto;height:30px;padding:0 10px;border-radius:4px;border:0;background:var(--blue-soft);
  color:var(--blue-deep);font-size:12px;cursor:pointer;white-space:nowrap;
}
.field-verify .code-btn:hover{background:#dde8ff;}
.industry{margin-top:24px;font-size:14px;}
.industry .hint{color:var(--text-3);font-size:13px;}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;}
.tag-pill{
  padding:6px 16px;border-radius:4px;background:#f2f4f7;color:#4a4f57;font-size:13px;cursor:pointer;
  border:1px solid transparent;transition:.2s;user-select:none;
}
.tag-pill:hover{background:#e8ecf3;}
.tag-pill.is-active{background:var(--blue);color:#fff;}
.modal-submit{margin-top:26px;text-align:center;}
.modal-submit .btn{width:240px;height:53px;font-size:18px;}
.modal-tip{display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;color:#5ac26a;margin-top:14px;}
.modal-tip .dot{width:14px;height:14px;border-radius:50%;background:#5ac26a;color:#fff;font-size:10px;display:flex;align-items:center;justify-content:center;}
.form-error{color:#e5484d;font-size:12px;margin-top:10px;text-align:center;min-height:16px;}
.form-success{color:#2f9e44;font-size:13px;margin-top:10px;text-align:center;min-height:16px;}

/* ==========================================================================
   内页 - 解决方案
   ========================================================================== */
.eco-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.eco-col{text-align:center;}
.eco-col .ico-circle{
  width:60px;height:60px;margin:0 auto 22px;border-radius:50%;
  background:#fff;box-shadow:0 10px 24px rgba(23,42,77,.12);display:flex;align-items:center;justify-content:center;
}
.eco-col .ico-circle img{width:60px;height:60px;}
.eco-col h3{font-size:18px;font-weight:500;}
.eco-col p{font-size:14px;color:var(--text-3);margin-top:8px;line-height:1.85;}

.eco-feature{display:grid;grid-template-columns:560px 1fr;gap:70px;align-items:center;margin-top:64px;}
.eco-feature .pic{border-radius:10px;overflow:hidden;box-shadow:0 20px 44px rgba(23,42,77,.16);}
.eco-feature .pic img{width:100%;display:block;}
.feat-list{display:flex;flex-direction:column;gap:12px;}
.feat-item{
  display:grid;grid-template-columns:60px 1fr;gap:22px;align-items:center;
  padding:22px 0;border-bottom:1px solid #eef1f6;
}
.feat-item:last-child{border-bottom:0;}
.feat-item .ico-circle{
  width:60px;height:60px;border-radius:50%;background:#fff;box-shadow:0 10px 24px rgba(23,42,77,.12);
  display:flex;align-items:center;justify-content:center;
}
.feat-item .ico-circle img{width:60px;height:60px;}
.feat-item h4{font-size:18px;font-weight:500;}
.feat-item p{font-size:14px;color:var(--text-3);margin-top:6px;}

.bg-eco{background:#f4f9ff;position:relative;overflow:hidden;}
.bg-eco::before{content:"";position:absolute;inset:0;background:url("../images/sol/eco-bg.jpg") center/cover no-repeat;opacity:.9;}
.bg-eco .container{position:relative;z-index:2;}
.adv-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.adv-card{
  background:#fff;border-radius:10px;padding:34px 30px 30px;
  box-shadow:0 10px 30px rgba(23,42,77,.07);transition:.3s;
}
.adv-card:hover{transform:translateY(-6px);box-shadow:0 20px 42px rgba(23,42,77,.14);}
.adv-card .ico-circle{
  width:60px;height:60px;border-radius:50%;background:#fff;box-shadow:0 10px 24px rgba(23,42,77,.10);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.adv-card .ico-circle img{width:60px;height:60px;}
.adv-card h3{font-size:18px;font-weight:500;}
.adv-card p{font-size:14px;color:var(--text-3);margin-top:10px;line-height:1.85;}

.case-feature{
  display:grid;grid-template-columns:506px 1fr;gap:0;background:#fff;border-radius:12px;overflow:hidden;
  box-shadow:0 18px 46px rgba(23,42,77,.10);
}
.case-feature .pic{background:#0b1220;}
.case-feature .pic img{width:100%;height:100%;object-fit:cover;display:block;}
.case-feature .body{padding:56px 60px;}
.case-feature h3{font-size:24px;font-weight:700;}
.case-feature .bar{width:34px;height:3px;border-radius:2px;background:var(--blue);margin:16px 0 20px;}
.case-feature p{font-size:14px;color:var(--text-2);line-height:1.95;}
.case-feature .metrics{display:flex;gap:56px;margin-top:40px;}
.case-feature .metric .m-num{font-family:var(--font-num);font-size:38px;font-weight:900;color:var(--text);line-height:1;}
.case-feature .metric .m-lbl{font-size:14px;color:var(--text-3);margin-top:8px;}

/* ==========================================================================
   内页 - 成功案例
   ========================================================================== */
.filter-tabs{
  position:relative;z-index:5;width:calc(var(--container) - 0px);max-width:calc(100% - 48px);
  margin:-38px auto 0;background:#fff;border-radius:8px;box-shadow:0 14px 40px rgba(23,42,77,.12);
  display:flex;justify-content:center;gap:0;overflow:hidden;
}
.filter-tab{
  flex:1;text-align:center;padding:20px 0;font-size:16px;color:var(--text-2);cursor:pointer;transition:.25s;
  white-space:nowrap;
}
.filter-tab:hover{color:var(--blue);}
.filter-tab.is-active{background:var(--blue);color:#fff;}

.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px 40px;margin-top:60px;}
.case-card{
  background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 10px 30px rgba(23,42,77,.08);
  transition:.35s;display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 22px 48px rgba(23,42,77,.16);}
.case-card .thumb{height:270px;overflow:hidden;}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.6s;}
.case-card:hover .thumb img{transform:scale(1.05);}
.case-card .body{padding:24px 28px 26px;flex:1;display:flex;flex-direction:column;}
.case-card h3{font-size:18px;font-weight:700;}
.case-card p{font-size:14px;color:var(--text-2);line-height:1.9;margin-top:12px;flex:1;}
.case-card .tags{display:flex;gap:10px;margin-top:16px;font-size:13px;color:var(--text-3);}
.case-card .tags span{position:relative;}
.case-card .tags span + span::before{content:"|";margin-right:10px;color:#d3d8df;}

/* ==========================================================================
   内页 - 关于奥讯
   ========================================================================== */
.about-intro{position:relative;}
.about-intro::before{content:"";position:absolute;inset:0;background:url("../images/about/intro-bg.jpg") center/cover no-repeat;opacity:.12;}
.about-intro .container{position:relative;z-index:2;}
.intro-grid{display:grid;grid-template-columns:1fr 460px;gap:70px;align-items:center;}
.intro-grid h3{font-size:24px;font-weight:500;margin-bottom:20px;}
.intro-grid .txt{font-size:14px;line-height:2;color:var(--text-2);text-align:justify;}
.intro-stats{display:flex;gap:52px;margin-top:44px;}
.intro-stats .num{font-family:var(--font-num);font-size:30px;font-weight:900;color:var(--blue-royal);line-height:1;}
.intro-stats .lbl{font-size:14px;color:var(--text-3);margin-top:8px;}
.hq-card{position:relative;border-radius:10px;overflow:hidden;box-shadow:0 20px 46px rgba(23,42,77,.20);}
.hq-card img{width:100%;display:block;}
.hq-card .cap{
  position:absolute;left:0;right:0;bottom:0;padding:26px 0 14px;text-align:center;color:#fff;font-size:14px;
  background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.6));
}

.cert-wrap{position:relative;margin-top:16px;}
.cert-stage{
  position:relative;height:420px;perspective:1250px;transform-style:preserve-3d;
}
.cert-item{
  position:absolute;top:50%;left:50%;cursor:pointer;
  transform:translate(-50%,-50%) translateZ(0) rotateY(0deg);
  transition:transform .6s cubic-bezier(.32,.72,.24,1), opacity .6s ease, filter .6s ease;
  backface-visibility:hidden;will-change:transform,opacity;pointer-events:auto;
}
.cert-item img{display:block;height:280px;width:auto;border-radius:5px;background:#fff;
  box-shadow:0 26px 60px rgba(0,0,0,.55);}
.cert-item.is-center{
  transform:translate(-50%,-50%) translateX(0) translateZ(70px) rotateY(0deg);
  opacity:1;z-index:6;filter:brightness(1);
}
.cert-item.is-center img{
  box-shadow:0 0 0 3px rgba(64,130,255,.9), 0 0 44px rgba(50,105,255,.5), 0 30px 60px rgba(0,0,0,.6);
}
.cert-item.is-prev{
  transform:translate(-50%,-50%) translateX(-275px) translateZ(-150px) rotateY(46deg);
  opacity:.85;z-index:4;filter:brightness(.6);
}
.cert-item.is-next{
  transform:translate(-50%,-50%) translateX(275px) translateZ(-150px) rotateY(-46deg);
  opacity:.85;z-index:4;filter:brightness(.6);
}
.cert-item.is-far-prev{
  transform:translate(-50%,-50%) translateX(-480px) translateZ(-330px) rotateY(54deg);
  opacity:.42;z-index:2;filter:brightness(.42);
}
.cert-item.is-far-next{
  transform:translate(-50%,-50%) translateX(480px) translateZ(-330px) rotateY(-54deg);
  opacity:.42;z-index:2;filter:brightness(.42);
}
.cert-item.is-off{
  transform:translate(-50%,-50%) translateZ(-520px) rotateY(60deg);
  opacity:0;z-index:1;pointer-events:none;filter:brightness(.3);
}
.cert-name{
  text-align:center;font-size:15px;color:rgba(255,255,255,.85);letter-spacing:1px;
  margin-top:10px;position:relative;z-index:6;
}
.cert-arrow{
  position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.05);color:rgba(255,255,255,.8);
  font-size:20px;line-height:1;cursor:pointer;z-index:10;transition:.25s;
  display:flex;align-items:center;justify-content:center;
}
.cert-arrow:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.8);color:#fff;}
.cert-arrow.prev{left:18px;}
.cert-arrow.next{right:18px;}

.culture-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;}
.culture-list{display:flex;flex-direction:column;gap:30px;}
.culture-item p{margin-top:8px;}
.culture-item{display:block;}
.culture-item .c-title{
  display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#1b45d8;letter-spacing:2px;
}
.culture-item .c-title::after{content:"";width:44px;height:2px;background:#1b45d8;opacity:.65;}
.culture-item p{font-size:14px;color:var(--text-3);line-height:1.9;}
.culture-pics{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.culture-pics img{border-radius:8px;width:100%;height:200px;object-fit:cover;}

.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.team-card{position:relative;border-radius:8px;overflow:hidden;height:280px;cursor:pointer;}
.team-card img{width:100%;height:100%;object-fit:cover;transition:.6s;}
.team-card:hover img{transform:scale(1.06);}
.team-card .cap{
  position:absolute;left:0;right:0;bottom:0;padding:30px 18px 16px;color:#fff;
  background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.72));
}
.team-card .cap h4{font-size:16px;font-weight:700;}
.team-card .cap span{font-size:12px;color:rgba(255,255,255,.75);}
.team-card .go{
  position:absolute;right:16px;bottom:18px;width:24px;height:24px;border-radius:50%;
  border:1px solid rgba(255,255,255,.55);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;
}

/* ==========================================================================
   内页 - 人才招聘
   ========================================================================== */
.why-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
.why-card{
  position:relative;background:#fff;border-radius:12px;padding:40px 26px 32px;
  box-shadow:0 10px 30px rgba(23,42,77,.07);overflow:hidden;transition:.35s;
}
.why-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(23,42,77,.14);}
.why-card .blob{position:absolute;top:0;left:0;width:200px;height:192px;opacity:.75;pointer-events:none;}
.why-card .ico{position:relative;width:40px;height:41px;margin-bottom:24px;}
.why-card h3{position:relative;font-size:20px;font-weight:700;}
.why-card .line{position:relative;width:40px;height:3px;background:#dfe4ec;margin:14px 0 16px;border-radius:2px;}
.why-card p{position:relative;font-size:14px;color:var(--text-3);line-height:1.9;}

.jobs-dark{background:var(--dark-2);position:relative;overflow:hidden;}
.jobs-dark::before{content:"";position:absolute;inset:0;background:url("../images/jobs/dark-bg.jpg") center/cover no-repeat;opacity:.65;}
.jobs-dark .container{position:relative;z-index:2;}
.jobs-dark h2{font-size:24px;font-weight:700;color:#fff;}
.jobs-dark .lead{font-size:14px;color:rgba(255,255,255,.6);margin-top:10px;max-width:620px;}
.explore-card{
  display:grid;grid-template-columns:1fr 662px;background:#fff;border-radius:6px;overflow:hidden;margin-top:34px;
}
.explore-card .body{padding:44px 48px;}
.explore-card h3{font-size:20px;font-weight:700;color:var(--blue-royal);}
.explore-card p{font-size:14px;color:var(--text-2);line-height:1.95;margin-top:14px;}
.explore-list{margin-top:26px;}
.explore-list li{font-size:15px;color:var(--text-2);line-height:2.1;padding-left:14px;position:relative;}
.explore-list li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:var(--blue);}
.explore-card .pic img{width:100%;height:100%;object-fit:cover;display:block;}

.job-open{margin-top:44px;}
.job-open h3{font-size:18px;font-weight:700;color:#fff;text-align:center;margin-bottom:22px;}
.job-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.job-card{
  background:#1b2330;border:1px solid rgba(255,255,255,.07);border-radius:8px;padding:24px 26px;transition:.3s;
}
.job-card:hover{background:#212b3b;transform:translateY(-4px);border-color:rgba(50,105,255,.45);}
.job-card h4{font-size:18px;color:#fff;font-weight:500;}
.job-card .meta{display:flex;align-items:center;justify-content:space-between;margin-top:18px;font-size:13px;color:rgba(255,255,255,.55);}
.job-card .view{color:var(--blue-bright);display:inline-flex;align-items:center;gap:4px;}

.atmos-grid{display:grid;grid-template-columns:660px 1fr;gap:60px;align-items:center;}
.atmos-grid .pic{border-radius:10px;overflow:hidden;box-shadow:0 18px 44px rgba(23,42,77,.14);}
.atmos-grid .pic img{width:100%;display:block;}
.atmos-item{display:grid;grid-template-columns:64px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid #eef1f6;}
.atmos-item:last-child{border-bottom:0;}
.atmos-item .no{font-family:var(--font-num);font-size:40px;font-weight:900;color:#c9d2de;line-height:1;}
.atmos-item h4{font-size:18px;font-weight:500;}
.atmos-item p{font-size:14px;color:var(--text-3);line-height:1.9;margin-top:8px;}

.story-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;}
.story-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 12px 34px rgba(23,42,77,.10);transition:.35s;}
.story-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px rgba(23,42,77,.16);}
.story-card .pic{height:270px;overflow:hidden;}
.story-card .pic img{width:100%;height:100%;object-fit:cover;}
.story-card .body{padding:26px 34px 30px;}
.story-card h3{font-size:20px;font-weight:700;}
.story-card p{font-size:14px;color:var(--text-2);line-height:1.9;margin-top:12px;}
.story-card .who{display:flex;align-items:center;gap:12px;margin-top:20px;}
.story-card .who img{width:44px;height:44px;border-radius:50%;object-fit:cover;}
.story-card .who .nm{font-size:14px;color:var(--text-2);}

/* ---------- 空状态 ---------- */
.empty{text-align:center;color:var(--text-3);padding:70px 0;font-size:15px;}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1280px){
  .container{max-width:calc(100% - 48px);}
}
@media (max-width:1100px){
  .eco-feature,.case-feature,.intro-grid,.atmos-grid{grid-template-columns:1fr;}
  .explore-card{grid-template-columns:1fr;}
  .about-split{grid-template-columns:1fr;gap:40px;}
  .culture-grid{grid-template-columns:1fr;gap:40px;}
  .modal{grid-template-columns:1fr;}
  .modal-photo{min-height:200px;}
}
@media (max-width:900px){
  .nav-toggle{display:block;}
  .main-nav{
    position:absolute;top:var(--header-h);left:0;right:0;background:var(--navy);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 20px;
    display:none;box-shadow:0 20px 30px rgba(0,0,0,.35);
  }
  .main-nav.open{display:flex;}
  .main-nav > a,.main-nav .nav-item > a{padding:12px 0;font-size:16px;}
  .main-nav > a::after,.main-nav .nav-item > a::after{display:none;}
  .dropdown{position:static;transform:none;opacity:1;visibility:visible;background:transparent;box-shadow:none;padding-left:16px;}
  .nav-cta{height:36px;font-size:14px;padding:0 16px;}
  .sol-grid,.partner-grid,.why-cols,.eco-cols,.adv-cols,.job-cards{grid-template-columns:repeat(2,1fr);}
  .cust-row{grid-template-columns:repeat(2,1fr);}
  .case-grid,.story-grid{grid-template-columns:1fr;}
  .team-grid{grid-template-columns:repeat(2,1fr);}
  .case-panel.is-active{grid-template-columns:1fr;}
  .filter-tabs{flex-wrap:wrap;}
  .filter-tab{flex:1 1 40%;}
  .footer-main{grid-template-columns:1fr 1fr;gap:30px;}
  .stats-inner{flex-wrap:wrap;height:auto;gap:18px;padding:18px 0;}
  .hero h1,.hero-center h1{font-size:30px;}
}
@media (max-width:600px){
  .sol-grid,.partner-grid,.why-cols,.eco-cols,.adv-cols,.job-cards,.cust-row,.team-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .accordion{height:auto;flex-direction:column;}
  .acc-item,.acc-item.is-active{flex:none;height:auto;min-height:190px;}
  .acc-item .acc-body{padding:16px 18px;}
  .acc-item h4{font-size:20px;}
  .acc-item .acc-desc{white-space:normal;font-size:12.5px;line-height:1.7;max-height:none;}
  .acc-item.is-active .acc-desc{max-height:none;}
  .case-metrics,.metrics,.intro-stats{flex-wrap:wrap;gap:26px;}
  .modal-body{padding:30px 22px;}
}

/* ---------- 首页局部背景 ---------- */
.case-dark{
  background:linear-gradient(rgba(15,20,28,.70),rgba(15,20,28,.70)),
             url("../images/home/case-dark-bg.jpg") center/cover no-repeat;
}
.about-soft{
  background:
    radial-gradient(560px 380px at 12% 44%, rgba(226,240,178,.60), rgba(226,240,178,0) 70%),
    radial-gradient(560px 380px at 90% 56%, rgba(198,224,255,.60), rgba(198,224,255,0) 70%),
    #fff;
}

/* ==========================================================================
   小屏适配（覆盖基础最大宽度，避免横向溢出）
   ========================================================================== */
html,body{max-width:100%;overflow-x:hidden;}
@media (max-width:900px){
  .container{width:auto;max-width:none;margin-left:20px;margin-right:20px;}
  .filter-tabs{width:auto;max-width:none;margin-left:20px;margin-right:20px;}
  .nav-inner{gap:10px;}
  .nav-cta{flex:0 0 auto;}
  .stats-inner{gap:16px 22px;justify-content:flex-start;}
  .hero{padding:24px 0;}
  .hero .btn,.hero-center .btn{margin-top:24px;}
  .section{padding:56px 0;}
}
@media (max-width:640px){
  .container{margin-left:16px;margin-right:16px;}
  .logo img{height:26px;}
  .logo{margin-right:0;}
  .nav-cta{height:32px;font-size:13px;padding:0 12px;}
  .stat .num{font-size:30px;}
  .stat .num small{font-size:12px;}
  .stat .lbl{font-size:12px;}
  .hero h1,.hero-center h1{font-size:24px;}
  .hero p,.hero-center p{font-size:13px;margin-top:8px;}
  .sec-title{font-size:22px;}
  .sec-sub{font-size:13px;}
  .sec-head{margin-bottom:32px;}
  .footer-main{grid-template-columns:1fr;gap:22px;padding:28px 0 20px;}
  .footer-qr{text-align:left;}
  .footer-qr img{margin:0;}
  .link-select{min-width:0;width:100%;}
  .footer-bottom .copy{margin-left:0;width:100%;}
  .case-tabs{border-radius:6px;margin-bottom:40px;}
  .case-tab{height:56px;gap:6px;}
  .case-tab .idx{font-size:20px;}
  .case-tab .sep{height:20px;}
  .case-tab .txt{font-size:13px;}
  .filter-tab{font-size:13px;padding:12px 0;flex:1 1 45%;}
  .explore-card .body{padding:26px 20px;}
  .job-cards{gap:14px;}
  .modal-body{padding:26px 18px;}
  .modal-photo{min-height:170px;}
  .field > label{flex:0 0 68px;font-size:13px;}
  .field input{font-size:13px;}
  .modal h3{font-size:20px;}
  .modal-submit .btn{width:100%;height:46px;font-size:16px;}
  .cert-stage{height:330px;}
  .cert-item img{height:200px;}
  .cert-item.is-prev{transform:translate(-50%,-50%) translateX(-120px) translateZ(-150px) rotateY(50deg);}
  .cert-item.is-next{transform:translate(-50%,-50%) translateX(120px) translateZ(-150px) rotateY(-50deg);}
  .cert-item.is-far-prev,.cert-item.is-far-next{opacity:0;pointer-events:none;}
  .culture-pics img{height:150px;}
  .team-card{height:210px;}
  .case-card .thumb,.story-card .pic{height:200px;}
  .acc-item{height:150px;}
}