/* ============================================================
   秦皇岛小美数聚科技有限公司 官网
   公共样式 style.css
   ============================================================ */

:root{
  --navy-900:#071C33;
  --navy-800:#0A2540;
  --navy-700:#0F3154;
  --teal:#0EA59C;
  --teal-bright:#21C9BD;
  --sky:#3E8FD9;
  --bg:#F3F7FA;
  --card:#FFFFFF;
  --line:#DCE7F0;
  --text:#12283F;
  --text-2:#4F6579;
  --text-3:#8CA2B5;
  --white:#FFFFFF;
  --radius:14px;
  --shadow-soft:0 10px 30px rgba(10,37,64,.08);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .25s ease;
  font-family:inherit;line-height:1.4;
}
.btn-primary{background:var(--teal);color:#fff;}
.btn-primary:hover{background:var(--teal-bright);transform:translateY(-2px);box-shadow:0 8px 20px rgba(14,165,156,.35);}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-ghost{border-color:var(--line);color:var(--text);background:var(--card);}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);}
.btn-sm{padding:9px 20px;font-size:14px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--teal) 0%,var(--sky) 100%);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:24px;height:24px;fill:#fff;}
.brand-logo{
  width:46px;height:34px;border-radius:8px;flex-shrink:0;overflow:hidden;
  background:#fff;display:flex;align-items:center;justify-content:center;
  padding:3px;border:1px solid var(--line);
}
.brand-logo img{width:100%;height:100%;object-fit:contain;}
.brand-name{display:block;font-size:17px;font-weight:700;letter-spacing:.5px;color:var(--navy-800);line-height:1.3;white-space:nowrap;}
.brand-sub{display:block;font-size:10px;color:var(--text-3);letter-spacing:2px;white-space:nowrap;line-height:1.2;text-align:center;margin-top:4px;}

.main-nav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap;}
.main-nav a{
  padding:6px 12px;border-radius:8px;font-size:14px;color:var(--text-2);
  transition:all .2s ease;font-weight:500;white-space:nowrap;
}
.main-nav a:hover{color:var(--teal);background:rgba(14,165,156,.08);}
.main-nav a.active{color:var(--teal);font-weight:700;background:rgba(14,165,156,.1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header-tel{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--navy-800);white-space:nowrap;
}
.header-tel svg{width:16px;height:16px;fill:var(--teal);}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy-800);border-radius:2px;transition:all .25s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 下拉子菜单 ---------- */
.main-nav .nav-item{position:relative;}
.main-nav .nav-item > a{display:inline-flex;align-items:center;gap:4px;}
.main-nav .nav-item > a .caret{width:12px;height:12px;fill:currentColor;transition:transform .25s ease;flex-shrink:0;}
.main-nav .nav-item:hover > a .caret{transform:rotate(180deg);}
.main-nav .dropdown{
  position:absolute;top:calc(100% + 10px);left:0;min-width:212px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 14px 34px rgba(10,37,64,.13);padding:8px;z-index:120;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s ease;
}
.main-nav .nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.main-nav .dropdown a{
  display:block;padding:10px 14px;font-size:14px;border-radius:8px;
  color:var(--text-2);font-weight:500;white-space:nowrap;
}
.main-nav .dropdown a:hover{color:var(--teal);background:rgba(14,165,156,.08);}
.main-nav .dropdown a.active{color:var(--teal);font-weight:700;background:rgba(14,165,156,.1);}
/* 锚点定位避开吸顶导航 */
[id]{scroll-margin-top:86px;}

/* ---------- Hero 区 ---------- */
.hero{
  position:relative;height:600px;display:flex;align-items:center;
  background:var(--navy-800);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;overflow:hidden;}
.hero-bg.bg-1{background:linear-gradient(115deg,#071C33 0%,#1557B8 55%,#3E8FD9 100%);}
.hero-bg.bg-2{background:linear-gradient(115deg,#071C33 0%,#0B6B62 55%,#12C2AE 100%);}
.hero-bg.bg-3{background:linear-gradient(115deg,#071C33 0%,#5B3CA8 55%,#8B5CF6 100%);}
.hero-bg-img{
  position:absolute;top:0;right:0;bottom:0;width:62%;height:100%;
  object-fit:cover;display:block;opacity:.95;
  -webkit-mask-image:linear-gradient(to right, transparent 0%, rgba(0,0,0,.3) 28%, rgba(0,0,0,.75) 48%, #000 62%);
          mask-image:linear-gradient(to right, transparent 0%, rgba(0,0,0,.3) 28%, rgba(0,0,0,.75) 48%, #000 62%);
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,28,51,.42) 0%,rgba(10,37,64,.28) 40%,rgba(10,37,64,.06) 100%);
}
.hero-content{position:relative;z-index:2;padding:96px 0;max-width:640px;}
.hero-slide .container{max-width:none;padding-left:24px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--teal-bright);
  font-size:14px;font-weight:600;letter-spacing:3px;margin-bottom:20px;
}
.hero-eyebrow::before{content:"";width:28px;height:2px;background:var(--teal-bright);border-radius:2px;}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.25;font-weight:800;color:#fff;letter-spacing:1px;
}
.hero h1 .hl{color:var(--teal-bright);}
.hero-desc{margin:22px 0 34px;font-size:17px;color:rgba(226,238,247,.88);max-width:560px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{
  display:flex;gap:0;margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding-top:28px;max-width:560px;
}
.hero-stat{flex:1;}
.hero-stat + .hero-stat{border-left:1px solid rgba(255,255,255,.14);padding-left:24px;}
.hero-stat b{display:block;font-size:26px;color:#fff;font-weight:800;}
.hero-stat span{font-size:13px;color:rgba(226,238,247,.72);}

/* ---------- 章节通用 ---------- */
.section{padding:96px 0;}
.section-head{max-width:640px;margin-bottom:56px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--teal);letter-spacing:3px;margin-bottom:14px;}
.sec-label::before{content:"";width:22px;height:2px;background:var(--teal);border-radius:2px;}
.section-head.center .sec-label::after{content:"";width:22px;height:2px;background:var(--teal);border-radius:2px;}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--navy-800);line-height:1.35;letter-spacing:.5px;}
.section-sub{margin-top:14px;font-size:16px;color:var(--text-2);}
.section-dark{background:var(--navy-800);}
.section-dark .section-title{color:#fff;}
.section-dark .section-sub{color:rgba(226,238,247,.75);}
.section-dark .sec-label{color:var(--teal-bright);}
.section-dark .sec-label::before{background:var(--teal-bright);}

/* ---------- 业务卡片 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.service-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 30px;position:relative;overflow:hidden;transition:all .3s ease;
}
.service-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--teal),var(--sky));opacity:0;transition:opacity .3s ease;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-soft);}
.service-card:hover::before{opacity:1;}
.service-icon{
  width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(14,165,156,.1);margin-bottom:22px;
}
.service-icon svg{width:28px;height:28px;fill:var(--teal);}
.service-card h3{font-size:20px;font-weight:700;color:var(--navy-800);margin-bottom:12px;}
.service-card p{font-size:14.5px;color:var(--text-2);margin-bottom:20px;}
.card-link{font-size:14px;font-weight:700;color:var(--teal);display:inline-flex;align-items:center;gap:6px;transition:gap .25s ease;}
.card-link:hover{gap:10px;}

/* ---------- 优势网格 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.adv-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:all .25s ease;}
.adv-item:hover{border-color:var(--teal);box-shadow:var(--shadow-soft);}
.adv-num{font-size:13px;font-weight:800;color:var(--teal);letter-spacing:1px;margin-bottom:10px;}
.adv-item h4{font-size:17px;font-weight:700;color:var(--navy-800);margin-bottom:8px;}
.adv-item p{font-size:14px;color:var(--text-2);}

/* ---------- 流程 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{position:relative;padding-top:14px;}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;font-weight:800;color:var(--teal-bright);letter-spacing:2px;display:block;margin-bottom:12px;
}
.step::after{
  content:"";position:absolute;top:52px;left:0;width:100%;height:1px;background:rgba(255,255,255,.16);
}
.step:last-child::after{display:none;}
.step h4{font-size:17px;font-weight:700;color:#fff;margin-bottom:10px;}
.step p{font-size:14px;color:rgba(226,238,247,.75);max-width:240px;}

/* ---------- CTA 横幅 ---------- */
.cta-band{background:linear-gradient(120deg,var(--navy-900) 0%,var(--navy-700) 100%);position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(33,201,189,.22) 0%,transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);color:#fff;font-weight:800;line-height:1.4;}
.cta-inner p{color:rgba(226,238,247,.78);margin-top:8px;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy-900);color:rgba(226,238,247,.8);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{gap:12px;}
.footer-brand .brand img{width:auto;height:52px;object-fit:contain;}
.footer-brand .brand-logo{background:transparent;border:none;padding:0;}
.footer-brand .brand-name{color:#fff;font-size:17px;line-height:1.3;margin-bottom:4px;}
.footer-brand .brand-sub{color:rgba(226,238,247,.62);font-size:12.5px;letter-spacing:1.5px;line-height:1.2;text-align:center;margin-top:6px;}
.footer-brand p{margin-top:14px;font-size:14px;color:rgba(226,238,247,.66);max-width:280px;line-height:1.7;}
.footer-col h5{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:rgba(226,238,247,.72);transition:color .2s ease;}
.footer-col a:hover{color:var(--teal-bright);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(226,238,247,.72);margin-bottom:13px;}
.footer-contact svg{width:17px;height:17px;fill:var(--teal-bright);flex-shrink:0;margin-top:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13px;color:rgba(226,238,247,.5);}
.footer-bottom a{color:rgba(226,238,247,.5);transition:color .2s ease;}
.footer-bottom a:hover{color:var(--teal-bright);}

/* ---------- 内页横幅 ---------- */
.page-hero{position:relative;background:var(--navy-800);overflow:hidden;}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;}
.page-hero .ph-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,28,51,.92) 0%,rgba(10,37,64,.7) 60%,rgba(10,37,64,.4) 100%);}
.page-hero .container{position:relative;z-index:2;padding:84px 24px;}
.page-hero h1{font-size:clamp(26px,3.4vw,40px);font-weight:800;color:#fff;letter-spacing:1px;}
.page-hero .crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(226,238,247,.75);margin-top:12px;}
.page-hero .crumb a{color:var(--teal-bright);}
.page-hero .crumb svg{width:14px;height:14px;fill:rgba(226,238,247,.6);}

/* ---------- 服务页：业务详情 ---------- */
.biz-block{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.biz-block.reverse .biz-text{order:2;}
.biz-block.reverse .biz-visual{order:1;}
.biz-kicker{font-size:13px;font-weight:800;color:var(--teal);letter-spacing:2px;margin-bottom:12px;}
.biz-text h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:var(--navy-800);line-height:1.4;margin-bottom:14px;}
.biz-text > p{color:var(--text-2);font-size:15px;margin-bottom:22px;}
.biz-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;margin-bottom:24px;}
.biz-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--text);}
.biz-list li::before{
  content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;
  background:rgba(14,165,156,.14);border:1px solid var(--teal);
}
.biz-list li::after{
  content:"";position:absolute;left:5px;top:11px;width:4px;height:4px;border-radius:50%;background:var(--teal);
}
.tag-wrap{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(14,165,156,.08);
  border:1px solid rgba(14,165,156,.28);color:var(--navy-700);font-weight:500;
}
.biz-visual{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft);}
.biz-visual img{width:100%;height:340px;object-fit:cover;transition:transform .5s ease;}
.biz-block:hover .biz-visual img{transform:scale(1.04);}

/* ---------- 关于页 ---------- */
.about-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.about-intro h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:var(--navy-800);line-height:1.5;margin-bottom:18px;}
.about-intro p{color:var(--text-2);font-size:15px;margin-bottom:14px;}
.about-intro .intro-fig{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft);}
.about-intro .intro-fig img{width:100%;height:380px;object-fit:cover;}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.value-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:all .3s ease;}
.value-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-soft);}
.value-icon{width:50px;height:50px;border-radius:12px;background:rgba(14,165,156,.1);display:flex;align-items:center;justify-content:center;margin-bottom:18px;}
.value-icon svg{width:24px;height:24px;fill:var(--teal);}
.value-card h4{font-size:18px;font-weight:700;color:var(--navy-800);margin-bottom:10px;}
.value-card p{font-size:14.5px;color:var(--text-2);}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px;}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:all .25s ease;}
.contact-card:hover{border-color:var(--teal);box-shadow:var(--shadow-soft);}
.contact-card .cc-icon{width:44px;height:44px;border-radius:11px;background:rgba(14,165,156,.1);display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.contact-card .cc-icon svg{width:22px;height:22px;fill:var(--teal);}
.contact-card h4{font-size:15px;font-weight:700;color:var(--navy-800);margin-bottom:6px;}
.contact-card a,.contact-card p{font-size:15px;color:var(--text-2);word-break:break-all;}
.contact-card a:hover{color:var(--teal);}
.contact-map{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--card);
  padding:26px 24px;display:flex;gap:18px;align-items:flex-start;
}
.contact-map .cc-icon{width:44px;height:44px;border-radius:11px;background:rgba(14,165,156,.1);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact-map .cc-icon svg{width:22px;height:22px;fill:var(--teal);}
.contact-map h4{font-size:15px;font-weight:700;color:var(--navy-800);margin-bottom:6px;}
.contact-map p{font-size:14.5px;color:var(--text-2);}
.contact-map .btn{margin-top:12px;}

.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:38px 34px;}
.form-card h3{font-size:22px;font-weight:800;color:var(--navy-800);margin-bottom:8px;}
.form-card > p{font-size:14px;color:var(--text-3);margin-bottom:26px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:13.5px;font-weight:600;color:var(--navy-800);margin-bottom:8px;}
.form-group label em{color:#E05B5B;font-style:normal;}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:10px;
  font-size:16px;font-family:inherit;color:var(--text);background:#FBFCFE;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-group textarea{resize:vertical;min-height:130px;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,165,156,.12);background:#fff;
}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;}
.form-card .btn{width:100%;margin-top:6px;}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);z-index:999;
  background:var(--navy-800);color:#fff;padding:14px 26px;border-radius:12px;
  font-size:14.5px;box-shadow:0 12px 32px rgba(7,28,51,.35);opacity:0;pointer-events:none;
  transition:all .35s ease;display:flex;align-items:center;gap:10px;max-width:88vw;
}
.toast.show{opacity:1;transform:translate(-50%,0);}
.toast svg{width:20px;height:20px;fill:var(--teal-bright);flex-shrink:0;}
.toast.error svg{fill:#FF8A8A;}

/* ---------- 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:36px 24px;}
  .step::after{display:none;}
  .biz-block{grid-template-columns:1fr;gap:32px;}
  .biz-block.reverse .biz-text{order:0;}
  .biz-block.reverse .biz-visual{order:0;}
  .about-intro{grid-template-columns:1fr;gap:32px;}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:860px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:12px 24px 20px;gap:4px;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;transition:all .28s ease;
  }
  .main-nav.open{transform:none;opacity:1;visibility:visible;pointer-events:auto;}
  .main-nav a{padding:13px 12px;font-size:16px;border-radius:10px;}
  .main-nav .nav-item{width:100%;}
  .main-nav .nav-item > a{width:100%;justify-content:space-between;}
  .main-nav .nav-item.open > a .caret{transform:rotate(180deg);}
  .main-nav .dropdown{
    position:static;min-width:0;box-shadow:none;border:none;border-radius:0;
    padding:4px 0 8px 14px;opacity:1;visibility:visible;transform:none;
    display:none;transition:none;
  }
  .main-nav .nav-item.open .dropdown{display:block;}
  .main-nav .dropdown a{padding:10px 12px;font-size:15px;}
  .header-tel{padding:8px;margin-right:-8px;}
  .header-tel span{display:none;}
  .hero{height:520px;}
  .hero-content{padding:72px 0;}
  .hero-stats{flex-wrap:wrap;gap:18px;}
  .hero-stat{flex:1 1 40%;}
  .hero-stat + .hero-stat{border-left:none;padding-left:0;}
  .service-grid{grid-template-columns:1fr;gap:18px;}
  .value-grid{grid-template-columns:1fr;gap:18px;}
  .section{padding:72px 0;}
  .form-row{grid-template-columns:1fr;}
  .contact-cards{grid-template-columns:1fr;}
  .biz-list{grid-template-columns:1fr;}
}

@media (max-width:520px){
  .adv-grid{grid-template-columns:1fr;}
  .steps-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
}

/* ============================================================
   在线客服组件（前台悬浮窗）
   ============================================================ */
.chat-launcher{
  position:fixed;right:18px;bottom:18px;z-index:900;width:54px;height:54px;border-radius:50%;
  background:var(--teal);border:none;cursor:pointer;
  box-shadow:0 10px 26px rgba(14,165,156,.42);
  display:flex;align-items:center;justify-content:center;transition:transform .25s ease;
}
.chat-launcher:hover{transform:scale(1.07);}
.chat-launcher svg{width:26px;height:26px;fill:#fff;}
.chat-launcher .badge{
  position:absolute;top:-3px;right:-3px;min-width:20px;height:20px;border-radius:10px;
  background:#E05B5B;color:#fff;font-size:12px;font-weight:700;
  display:none;align-items:center;justify-content:center;padding:0 5px;
}
.chat-launcher .badge.show{display:flex;}
.chat-panel{
  position:fixed;right:0;bottom:0;z-index:901;width:280px;
  max-width:calc(100vw - 24px);height:340px;max-height:calc(100vh - 24px);
  background:#fff;border:1px solid var(--line);border-radius:16px 16px 0 16px;
  box-shadow:0 18px 50px rgba(7,28,51,.26);
  display:flex;flex-direction:column;overflow:hidden;
  transform-origin:bottom right;transition:all .28s ease;
}
.chat-panel.closed{opacity:0;transform:translateY(16px) scale(.95);pointer-events:none;}
.chat-head{background:var(--navy-800);padding:14px 16px;display:flex;align-items:center;gap:12px;}
.chat-head .avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;overflow:hidden;
  background:#fff;border:1px solid rgba(255,255,255,.25);
  display:flex;align-items:center;justify-content:center;
}
.chat-head .avatar img{width:100%;height:100%;object-fit:contain;display:block;}
.chat-head h4{color:#fff;font-size:15px;font-weight:700;line-height:1.3;}
.chat-head .state{font-size:12px;color:rgba(226,238,247,.72);display:flex;align-items:center;gap:6px;}
.chat-head .state::before{content:"";width:7px;height:7px;border-radius:50%;background:#37E0A6;}
.chat-close{
  margin-left:auto;width:30px;height:30px;border:none;background:rgba(255,255,255,.12);
  border-radius:8px;color:#fff;font-size:17px;cursor:pointer;line-height:1;
}
.chat-msgs{
  flex:1;overflow-y:auto;padding:16px;background:#F7FAFC;
  display:flex;flex-direction:column;gap:10px;
}
.chat-msg{max-width:80%;padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.6;word-break:break-word;white-space:pre-wrap;}
.chat-msg.system{align-self:center;background:rgba(10,37,64,.06);color:var(--text-3);font-size:12.5px;max-width:92%;text-align:center;}
.chat-msg.client{align-self:flex-end;background:var(--teal);color:#fff;border-bottom-right-radius:4px;}
.chat-msg.agent{align-self:flex-start;background:#fff;border:1px solid var(--line);color:var(--text);border-bottom-left-radius:4px;}
.chat-msg .time{display:block;font-size:11px;opacity:.72;margin-top:4px;}
.chat-typing{align-self:flex-start;display:flex;gap:4px;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:12px;border-bottom-left-radius:4px;}
.chat-typing span{width:6px;height:6px;border-radius:50%;background:var(--text-3);animation:blink 1.2s infinite;}
.chat-typing span:nth-child(2){animation-delay:.2s;}
.chat-typing span:nth-child(3){animation-delay:.4s;}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:1}}
.chat-quick{display:flex;gap:8px;flex-wrap:wrap;padding:0 14px 10px;background:#fff;}
.chat-quick button{
  border:1px solid var(--line);background:#fff;color:var(--text-2);font-size:12.5px;
  padding:5px 12px;border-radius:999px;cursor:pointer;transition:all .2s;font-family:inherit;
}
.chat-quick button:hover{border-color:var(--teal);color:var(--teal);}
.chat-input{display:flex;gap:10px;padding:12px 14px;border-top:1px solid var(--line);background:#fff;}
.chat-input input{
  flex:1;border:1px solid var(--line);border-radius:10px;padding:10px 14px;
  font-size:14px;font-family:inherit;outline:none;color:var(--text);
}
.chat-input input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,165,156,.1);}
.chat-input .send{
  width:44px;height:44px;border:none;border-radius:10px;background:var(--teal);color:#fff;
  cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s;flex-shrink:0;
}
.chat-input .send:hover{background:var(--teal-bright);}
.chat-input .send svg{width:20px;height:20px;fill:#fff;}
@media (max-width:520px){
  .chat-panel{right:12px;left:12px;bottom:88px;width:auto;max-width:none;}
  .chat-launcher{right:16px;bottom:16px;}
}

/* ============================================================
   客服后台工作台（admin.html）
   ============================================================ */
.admin-body{background:#EDF2F8;}
.admin-header{position:static;background:var(--navy-800);border-bottom:none;}
.admin-header .header-inner{height:64px;}
.admin-header .brand-name{color:#fff;}
.admin-header .brand-sub{color:rgba(226,238,247,.55);text-align:center;}
.admin-back{color:rgba(226,238,247,.8);font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:color .2s;}
.admin-back:hover{color:var(--teal-bright);}
.admin-back svg{width:16px;height:16px;fill:currentColor;}
.admin-wrap{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 64px);}
.admin-side{background:var(--navy-800);padding:22px 18px;overflow-y:auto;}
.admin-side-title{color:rgba(226,238,247,.6);font-size:12px;letter-spacing:2px;margin-bottom:14px;font-weight:600;}
.admin-stat{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px;}
.admin-stat .box{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px;}
.admin-stat .box b{display:block;font-size:22px;color:#fff;font-weight:800;}
.admin-stat .box span{font-size:12px;color:rgba(226,238,247,.65);}
.admin-session{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:12px;
  padding:14px 16px;display:flex;align-items:center;gap:12px;cursor:pointer;transition:all .2s;
}
.admin-session:hover{border-color:var(--teal);}
.admin-session .dot{width:10px;height:10px;border-radius:50%;background:#37E0A6;flex-shrink:0;}
.admin-session h5{color:#fff;font-size:14px;font-weight:600;}
.admin-session p{font-size:12px;color:rgba(226,238,247,.6);margin-top:2px;}
.admin-side .hint{font-size:12px;color:rgba(226,238,247,.45);line-height:1.7;margin-top:18px;}
.admin-main{display:flex;flex-direction:column;min-width:0;}
.admin-chat-head{padding:16px 26px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;}
.admin-chat-head h3{font-size:16px;font-weight:700;color:var(--navy-800);}
.admin-chat-head .tag{font-size:12px;color:var(--teal);background:rgba(14,165,156,.1);border-radius:999px;padding:3px 10px;font-weight:600;}
.admin-msgs{flex:1;overflow-y:auto;padding:24px 26px;display:flex;flex-direction:column;gap:12px;}
.admin-msg{max-width:66%;padding:11px 15px;border-radius:12px;font-size:14px;line-height:1.65;word-break:break-word;}
.admin-msg.client{align-self:flex-end;background:var(--teal);color:#fff;border-bottom-right-radius:4px;}
.admin-msg.agent{align-self:flex-start;background:#fff;border:1px solid var(--line);color:var(--text);border-bottom-left-radius:4px;}
.admin-msg.system{align-self:center;background:rgba(10,37,64,.06);color:var(--text-3);font-size:12.5px;max-width:92%;text-align:center;}
.admin-msg .meta{display:block;font-size:11px;opacity:.7;margin-top:4px;}
.admin-input-wrap{padding:16px 26px;background:#fff;border-top:1px solid var(--line);display:flex;gap:12px;align-items:flex-end;}
.admin-input-wrap textarea{
  flex:1;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px;
  font-family:inherit;outline:none;resize:none;min-height:64px;color:var(--text);line-height:1.6;
}
.admin-input-wrap textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,165,156,.1);}
.admin-input-wrap .btn{height:44px;flex-shrink:0;}
.admin-empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:14px;}
@media (max-width:900px){
  .admin-wrap{grid-template-columns:1fr;height:auto;min-height:calc(100vh - 64px);}
  .admin-side{padding:16px;}
  .admin-msgs{min-height:320px;}
  .admin-input-wrap{flex-direction:column;align-items:stretch;}
}

/* ============================================================
   2026 升级：Hero 大轮播
   ============================================================ */
.hero-slider{position:relative;}
.hero-slides{position:relative;width:100%;height:100%;}
.hero-slide{
  position:absolute;inset:0;display:flex;align-items:center;
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .8s ease,visibility .8s ease;
}
.hero-slide.active{opacity:1;visibility:visible;pointer-events:auto;}
.hero-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
  width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.32);
  background:rgba(255,255,255,.08);color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:all .25s ease;
}
.hero-arrow:hover{background:rgba(255,255,255,.18);border-color:#fff;}
.hero-arrow svg{width:22px;height:22px;fill:#fff;}
.hero-prev{left:28px;}
.hero-next{right:28px;}
.hero-dots{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:5;
  display:flex;gap:10px;align-items:center;
}
.hero-dot{
  width:10px;height:10px;border-radius:50%;border:none;padding:0;cursor:pointer;
  background:rgba(255,255,255,.42);transition:all .28s ease;
}
.hero-dot.active{width:26px;border-radius:6px;background:var(--teal-bright);}

/* ============================================================
   2026 升级：首页业务卡片（4 列 + 智能体热卡）
   ============================================================ */
.service-grid{grid-template-columns:repeat(4,1fr);gap:22px;}
.service-card-hot{
  background:linear-gradient(180deg,var(--navy-800) 0%,var(--navy-700) 100%);
  border-color:rgba(62,143,217,.4);
}
.service-card-hot::before{opacity:1;}
.service-card-hot h3{color:#fff;}
.service-card-hot p{color:rgba(226,238,247,.84);}
.service-card-hot .service-icon{background:rgba(33,201,189,.16);}
.service-card-hot .service-icon svg{fill:var(--teal-bright);}
.service-card-hot .card-link{color:var(--teal-bright);}
.service-card-wide{grid-column:1 / -1;display:flex;align-items:center;gap:34px;padding:36px 40px;}
.service-card-wide .service-icon{width:62px;height:62px;flex:0 0 auto;margin-bottom:0;}
.service-card-wide h3{font-size:23px;margin-bottom:8px;}
.service-card-wide p{max-width:780px;margin-bottom:0;font-size:15.5px;line-height:1.8;}
.service-card-wide .card-link{margin-left:auto;flex:0 0 auto;white-space:nowrap;font-size:15px;}
.hot-tag{position:absolute;top:16px;right:16px;z-index:2;font-size:12px;font-weight:800;letter-spacing:1px;color:#fff;background:linear-gradient(90deg,#F43F5E,#EF4444);padding:4px 12px;border-radius:20px;box-shadow:0 4px 12px rgba(239,68,68,.35);}
.roi-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0 6px;}
.roi-item{background:rgba(14,165,156,.07);border:1px solid rgba(14,165,156,.28);border-radius:14px;padding:18px 14px;text-align:center;}
.roi-item b{display:block;font-size:24px;font-weight:800;color:var(--teal);line-height:1.2;}
.roi-item span{display:block;margin-top:6px;font-size:13px;color:var(--text-2);}
.roi-note{font-size:14.5px;color:var(--text-2);margin:14px 0 22px;padding:12px 16px;background:rgba(62,143,217,.08);border-left:3px solid var(--teal);border-radius:0 10px 10px 0;}

/* ============================================================
   2026 升级：智能体主营区块（首页）
   ============================================================ */
.ai-feature{
  background:linear-gradient(120deg,var(--navy-900) 0%,var(--navy-700) 100%);
  position:relative;overflow:hidden;
}
.ai-feature::before{
  content:"";position:absolute;left:-140px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(33,201,189,.2) 0%,transparent 70%);
}
.ai-feature::after{
  content:"";position:absolute;right:-160px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(62,143,217,.2) 0%,transparent 70%);
}
.ai-feature .section-title{color:#fff;}
.ai-feature .section-sub{color:rgba(226,238,247,.75);}
.ai-feature .sec-label{color:var(--teal-bright);}
.ai-feature .sec-label::before{background:var(--teal-bright);}
.ai-feature .section-head.center .sec-label::after{background:var(--teal-bright);}
.ai-feature-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px;align-items:stretch;}
.ai-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);padding:34px 30px;color:#fff;
  display:flex;flex-direction:column;transition:all .3s ease;
}
.ai-card:hover{border-color:rgba(33,201,189,.5);transform:translateY(-5px);}
.ai-card-main{
  background:linear-gradient(160deg,rgba(62,143,217,.24) 0%,rgba(14,165,156,.2) 100%);
  border-color:rgba(33,201,189,.42);
}
.ai-badge{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:2px;color:var(--teal-bright);
  background:rgba(33,201,189,.14);border:1px solid rgba(33,201,189,.42);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.ai-card h3{font-size:22px;font-weight:800;margin-bottom:12px;line-height:1.4;}
.ai-card h4{font-size:18px;font-weight:700;margin-bottom:10px;}
.ai-card > p{font-size:14px;color:rgba(226,238,247,.78);margin-bottom:18px;line-height:1.8;}
.ai-card-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.ai-num{
  font-size:12px;font-weight:800;color:var(--teal-bright);letter-spacing:1px;
  background:rgba(33,201,189,.14);border-radius:8px;padding:4px 10px;flex-shrink:0;
}
.ai-list{display:grid;gap:10px;margin-bottom:22px;}
.ai-list li{position:relative;padding-left:22px;font-size:13.5px;color:rgba(226,238,247,.9);}
.ai-list li::before{
  content:"";position:absolute;left:0;top:7px;width:13px;height:13px;border-radius:50%;
  background:rgba(33,201,189,.16);border:1px solid var(--teal-bright);
}
.ai-list li::after{
  content:"";position:absolute;left:4px;top:11px;width:5px;height:5px;border-radius:50%;background:var(--teal-bright);
}
.ai-card .btn{margin-top:auto;align-self:flex-start;}
.ai-card .card-link{margin-top:auto;color:var(--teal-bright);}

/* ============================================================
   2026 升级：案例区块与案例卡片
   ============================================================ */
.case-block{margin-top:72px;}
.case-block-head{margin-bottom:34px;max-width:680px;}
.case-block-head .biz-kicker{margin-bottom:10px;}
.case-block-head h3{font-size:clamp(20px,2.4vw,26px);font-weight:800;color:var(--navy-800);margin-bottom:8px;}
.case-block-head p{font-size:14.5px;color:var(--text-2);}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;position:relative;overflow:hidden;transition:all .3s ease;
  display:flex;flex-direction:column;
}
.case-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--teal),var(--sky));opacity:0;transition:opacity .3s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-soft);}
.case-card:hover::before{opacity:1;}
.case-tag{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--teal);
  background:rgba(14,165,156,.1);border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.case-icon{
  width:46px;height:46px;border-radius:12px;background:rgba(14,165,156,.1);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.case-icon svg{width:22px;height:22px;fill:var(--teal);}
.case-card h3{font-size:17px;font-weight:700;color:var(--navy-800);margin-bottom:10px;}
.case-card p{font-size:14px;color:var(--text-2);margin-bottom:16px;flex:1;}
.case-card .card-link{font-size:13.5px;}
.case-points{margin:14px 0 6px;display:grid;gap:7px;}
.case-points li{position:relative;padding-left:20px;font-size:13px;color:var(--text-2);}
.case-points li::before{
  content:"";position:absolute;left:0;top:7px;width:12px;height:12px;border-radius:50%;
  background:rgba(14,165,156,.14);border:1px solid var(--teal);
}
.case-points li::after{content:"";position:absolute;left:4px;top:11px;width:4px;height:4px;border-radius:50%;background:var(--teal);}
/* 深色背景中的案例卡（智能体服务页） */
.section-dark .case-card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);}
.section-dark .case-card::before{background:linear-gradient(90deg,var(--teal-bright),var(--sky));}
.section-dark .case-card h3{color:#fff;}
.section-dark .case-card p{color:rgba(226,238,247,.78);}
.section-dark .case-tag{color:var(--teal-bright);background:rgba(33,201,189,.14);}
.section-dark .case-icon{background:rgba(33,201,189,.14);}
.section-dark .case-icon svg{fill:var(--teal-bright);}
.section-dark .case-points li{color:rgba(226,238,247,.82);}
.section-dark .case-points li::before{background:rgba(33,201,189,.14);border-color:var(--teal-bright);}
.section-dark .case-points li::after{background:var(--teal-bright);}
.section-dark .case-card .card-link{color:var(--teal-bright);}

/* ============================================================
   2026 升级：智能体应用场景（agents.html）
   ============================================================ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;transition:all .3s ease;
}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-soft);border-color:var(--teal);}
.scene-icon{
  width:50px;height:50px;border-radius:13px;background:rgba(14,165,156,.1);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.scene-icon svg{width:24px;height:24px;fill:var(--teal);}
.scene-card h4{font-size:17px;font-weight:700;color:var(--navy-800);margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--text-2);}

/* 浅色背景步骤条（agents.html 落地流程） */
.steps-grid-light .step::before{color:var(--teal);}
.steps-grid-light .step::after{background:var(--line);}
.steps-grid-light .step h4{color:var(--navy-800);}
.steps-grid-light .step p{color:var(--text-2);}

/* ---------- 2026 升级响应式 ---------- */
@media (max-width:1180px){
  .service-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .header-tel span{display:none;}
  .main-nav a{padding:6px 10px;font-size:13.5px;}
  .main-nav .nav-item > a .caret{width:11px;height:11px;}
  .brand-name{font-size:15px;}
  .brand-logo{width:40px;height:30px;}
}
@media (max-width:1024px){
  .ai-feature-grid{grid-template-columns:1fr 1fr;}
  .ai-card-main{grid-column:1 / -1;}
  .case-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
}
@media (max-width:860px){
  .hero-arrow{display:none;}
  .service-grid{grid-template-columns:1fr;gap:18px;}
  .service-card-wide{flex-direction:column;align-items:flex-start;gap:18px;padding:28px 24px;}
  .service-card-wide .card-link{margin-left:0;}
  .roi-strip{grid-template-columns:repeat(2,1fr);gap:12px;}
  .ai-feature-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
}