/* ============================================================
   光弘铭科技 GOHOMIN 官网 - 样式表
   基于东软风格复刻，调整为软件定制开发公司定位
   配色: 东软蓝 #005bac / 亮青 #06b4ea
   ============================================================ */
:root{
  --blue:#005bac;
  --blue-d:#004a8d;
  --cyan:#06b4ea;
  --ink:#353a44;
  --ink-2:#4b4f52;
  --muted:#8a9099;
  --line:#e3e7ea;
  --bg:#f6f6f6;
  --bg-2:#f3f3f3;
  --white:#fff;
  --maxw:1240px;
  --radius:6px;
  --shadow:0 6px 24px rgba(20,40,70,.08);
  --shadow-h:0 12px 36px rgba(0,91,172,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-head{margin-bottom:38px}
.section-head .eyebrow{
  display:inline-block;color:var(--cyan);font-size:13px;font-weight:600;
  letter-spacing:2px;margin-bottom:10px;text-transform:uppercase;
}
.section-head h2{font-size:30px;font-weight:700;color:var(--ink);letter-spacing:.5px}
.section-head p{color:var(--muted);margin-top:8px;font-size:15px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:11px 22px;border-radius:var(--radius);font-weight:600;font-size:14px;transition:.25s;border:1px solid transparent;cursor:pointer}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-d);box-shadow:var(--shadow-h)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--blue)}
.btn-line{color:var(--blue);border:1px solid var(--line);background:#fff}
.btn-line:hover{border-color:var(--blue)}

/* ---------- 主导航 ---------- */
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:86px;gap:22px}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo-img{height:46px;width:auto;flex-shrink:0}
.menu{display:flex;align-items:center;justify-content:center;gap:0;list-style:none;flex:1;max-width:760px}
.menu a{font-size:15px !important;font-weight:500;color:var(--ink);position:relative;padding:30px 18px !important;transition:.2s;white-space:nowrap;line-height:1}
.menu a::after{content:"";position:absolute;left:50%;bottom:18px;width:36px;height:2px;background:var(--blue);border-radius:1px;transform:translateX(-50%) scaleX(0);transform-origin:center;transition:transform .25s}
.menu a:hover{color:var(--blue)}
.menu a:hover::after{transform:translateX(-50%) scaleX(1)}
.menu a.active{color:var(--blue);font-weight:500}
.menu a.active::after{transform:translateX(-50%) scaleX(1)}
.has-dropdown{position:relative}
.has-dropdown>a{display:flex;align-items:center;gap:4px}
.has-dropdown .caret{font-size:10px;transition:transform .2s;display:inline-block}
.has-dropdown:hover .caret{transform:rotate(180deg)}
.has-dropdown:hover>a{color:var(--blue)}
.has-dropdown:hover>a::after{transform:scaleX(1)}
.dropdown{position:absolute;top:100%;left:50%;transform:translate(-50%,8px);width:780px;max-width:92vw;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 16px 40px rgba(20,40,70,.18);padding:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;opacity:0;visibility:hidden;transition:.2s;z-index:60}
.has-dropdown:hover .dropdown{opacity:1;visibility:visible;transform:translate(-50%,0)}
.dropdown a{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border-radius:6px;font-size:14px;color:var(--ink);transition:.2s;line-height:1.5}
.dropdown a::after{display:none}
.dropdown a:hover{background:#f6f6f6;color:var(--blue)}
.dropdown a b{font-size:13px;color:var(--blue);font-weight:700;letter-spacing:.5px;min-width:60px;flex-shrink:0;line-height:1.5;padding-top:1px}
.dropdown a span{font-size:13px;color:var(--muted);line-height:1.5}
.dropdown a.active{background:#eef5fc;color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-cta .btn{padding:10px 20px;font-size:14px}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* ---------- 首屏新闻轮播 ---------- */
.hero{position:relative;height:560px;overflow:hidden;background:var(--ink)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;display:flex;align-items:center}
.slide.active{opacity:1}
.slide .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.slide .bg img{width:100%;height:100%;object-fit:cover;display:block}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,24,48,.92) 0%,rgba(8,24,48,.65) 45%,rgba(8,24,48,.15) 100%)}
.slide .wrap{position:relative;z-index:2;width:100%}
.slide .tag{display:inline-block;background:var(--cyan);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:3px;margin-bottom:18px}
.slide h1{color:#fff;font-size:42px;line-height:1.25;font-weight:700;max-width:1100px;letter-spacing:.5px;white-space:nowrap}
.slide p{color:rgba(255,255,255,.82);font-size:16px;max-width:620px;margin:18px 0 26px}
.bg1{background:radial-gradient(circle at 70% 30%,#0a3a6b,#04162e),linear-gradient(135deg,#005bac,#06b4ea)}
.bg2{background:radial-gradient(circle at 75% 40%,#0d4f7a,#06203f),linear-gradient(135deg,#0072a3,#06b4ea)}
.bg3{background:radial-gradient(circle at 65% 35%,#103a5e,#05182f),linear-gradient(135deg,#005bac,#3aa0d6)}
.hero-grid{position:absolute;inset:0;opacity:.12;background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);background-size:46px 46px;z-index:1}
.hero-controls{position:absolute;bottom:34px;left:0;right:0;z-index:5}
.hero-controls .wrap{display:flex;align-items:center;justify-content:space-between}
.dots{display:flex;gap:10px}
.dots button{width:30px;height:4px;border:none;background:rgba(255,255,255,.35);cursor:pointer;border-radius:2px;transition:.3s;padding:0}
.dots button.active{background:var(--cyan);width:46px}
.counter{color:#fff;font-size:14px;font-weight:600}
.counter b{font-size:22px}
.arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.25s;font-size:20px}
.arrow:hover{background:var(--blue)}
.arrow.prev{left:24px}
.arrow.next{right:24px}

/* ---------- 业务领域 / 定制服务 ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.biz-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.3s;position:relative;overflow:hidden}
.biz-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--blue);transition:.3s}
.biz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.biz-card:hover::before{height:100%}
.biz-card .ic{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,#eef5fc,#e2f4fb);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.biz-card .ic svg{width:28px;height:28px;stroke:var(--blue)}
.biz-card h3{font-size:18px;margin-bottom:10px;color:var(--ink)}
.biz-card p{color:var(--muted);font-size:13.5px;line-height:1.7}
.biz-card .more{display:inline-block;margin-top:14px;color:var(--blue);font-size:13px;font-weight:600}

/* ---------- 数智创新 / 案例 ---------- */
.innov{background:var(--bg)}
.innov-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.innov-card{border-radius:10px;overflow:hidden;background:#fff;box-shadow:var(--shadow);display:flex;flex-direction:column}
.innov-card .pic{height:200px;background:linear-gradient(135deg,var(--blue),var(--cyan));position:relative;display:flex;align-items:center;justify-content:center}
.innov-card .pic svg{width:90px;height:90px;stroke:#fff;opacity:.92}
.innov-card .body{padding:28px 30px}
.innov-card .body h3{font-size:21px;margin-bottom:10px}
.innov-card .body p{color:var(--ink-2);font-size:14px}
.innov-card .body a{display:inline-block;margin-top:16px;color:var(--blue);font-weight:600}

/* ---------- 行业应用 / 企业应用 / 案例 ---------- */
.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.3s}
.app-card:hover{box-shadow:var(--shadow);border-color:transparent;transform:translateY(-4px)}
.app-card .kicker{color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:1px}
.app-card h3{font-size:19px;margin:10px 0 12px}
.app-card p{color:var(--muted);font-size:13.5px;min-height:60px}
.app-card a{color:var(--blue);font-weight:600;font-size:14px}

/* ---------- 开发流程 ---------- */
.process{display:flex;justify-content:space-between;gap:18px;position:relative}
.process::before{content:"";position:absolute;top:36px;left:8%;right:8%;height:2px;background:var(--line);z-index:0}
.process-step{position:relative;z-index:1;flex:1;text-align:center;background:#fff;padding:24px 14px;border-radius:var(--radius);border:1px solid var(--line);transition:.3s}
.process-step:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-4px)}
.process-step .num{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin:0 auto 16px}
.process-step h4{font-size:16px;margin-bottom:8px}
.process-step p{color:var(--muted);font-size:13px;line-height:1.6}

/* ---------- 核心优势 ---------- */
.insight{background:var(--ink);color:#fff}
.insight .section-head h2{color:#fff}
.insight .section-head p{color:rgba(255,255,255,.6)}
.paper-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.paper{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:26px;transition:.3s;display:flex;flex-direction:column;min-height:190px}
.paper:hover{background:rgba(6,180,234,.12);border-color:var(--cyan)}
.paper .tag{display:inline-block;font-size:11px;color:var(--cyan);letter-spacing:1px;margin-bottom:12px}
.paper h4{font-size:17px;margin-bottom:10px;font-weight:600;line-height:1.5}
.paper p{color:rgba(255,255,255,.72);font-size:13.5px;line-height:1.7}
.center-btn{text-align:center;margin-top:36px}

/* ---------- 常见问题 ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:10px}
.faq-q{width:100%;text-align:left;padding:18px 22px;font-size:15px;font-weight:600;color:var(--ink);background:#fff;border:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:.2s}
.faq-q:hover{color:var(--blue)}
.faq-q span{font-size:20px;color:var(--blue);font-weight:300}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 18px;color:var(--ink-2);font-size:14px;line-height:1.8}
.faq-item.open .faq-a{max-height:600px}

/* ---------- 关于我们 ---------- */
.about-wrap{display:flex;gap:60px;align-items:center}
.about-text{flex:1.2}
.about-text p{color:var(--ink-2);margin-bottom:16px;font-size:15px}
.about-stats{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;transition:.3s}
.stat:hover{box-shadow:var(--shadow);border-color:transparent;transform:translateY(-4px)}
.stat b{display:block;font-size:32px;color:var(--blue);margin-bottom:6px}
.stat span{color:var(--muted);font-size:13px}

/* ---------- 联系咨询 ---------- */
.contact{background:linear-gradient(120deg,#04162e,#0a3a6b);color:#fff;position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0;opacity:.1;background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);background-size:50px 50px}
.contact-wrap{position:relative;z-index:2;display:flex;gap:50px;align-items:flex-start}
.contact-info{flex:1}
.contact-info p{color:rgba(255,255,255,.78);margin:14px 0 24px}
.contact-info ul{list-style:none}
.contact-info li{margin-bottom:14px;color:rgba(255,255,255,.85);font-size:15px}
.contact-info li strong{display:inline-block;width:80px;color:#fff}
.contact-form{flex:1;background:#fff;border-radius:12px;padding:34px;box-shadow:var(--shadow)}
.contact-form h3{font-size:20px;margin-bottom:22px;color:var(--ink)}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:12px 14px;margin-bottom:14px;border:1px solid var(--line);border-radius:var(--radius);font-size:14px;color:var(--ink);font-family:inherit}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue)}
.contact-form textarea{resize:vertical}
.form-row{display:flex;gap:14px}
.form-row input{flex:1}

/* ---------- 页脚 ---------- */
.footer{background:#1c2128;color:#aeb4bc;padding:56px 0 26px;font-size:14px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.footer .brand .logo-text b{color:#fff}
.footer .brand .logo-text span{color:#8b9199}
.footer .brand .footer-brand-name{display:inline-block;color:#fff;font-size:24px;font-weight:700;letter-spacing:1px;margin-bottom:6px;text-decoration:none}
.footer .brand .footer-brand-name:hover{color:var(--cyan)}
.footer .brand p{margin:18px 0;max-width:280px;line-height:1.7;color:#8b9199}
.footer h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer ul{list-style:none}
.footer ul li{margin-bottom:11px}
.footer ul li a{color:#aeb4bc;transition:.2s}
.footer ul li a:hover{color:var(--cyan)}
.footer .bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7c828a}
.footer .bottom a{color:#8b97a3;text-decoration:none;transition:.2s}
.footer .bottom a:hover{color:#06b4ea;text-decoration:underline}

/* ---------- 探索更多（首页） ---------- */
.explore-sec{background:linear-gradient(180deg,#f6f9fc 0%,#fff 100%)}
.explore-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.explore-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 22px;text-align:center;transition:.3s;display:flex;flex-direction:column}
.explore-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(0,91,172,.16);border-color:transparent}
.explore-card .ec-icon{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 8px 16px rgba(0,91,172,.18)}
.explore-card .ec-icon svg{width:28px;height:28px;stroke:#fff}
.explore-card h3{font-size:16px;color:var(--ink);margin-bottom:8px;font-weight:700}
.explore-card p{color:var(--muted);font-size:12.5px;line-height:1.6;margin-bottom:14px;flex:1}
.explore-card .more{font-size:13px;color:var(--blue);font-weight:600}

/* ---------- 响应式 ---------- */
@media(max-width:1100px){
  .dropdown{width:600px;grid-template-columns:repeat(2,1fr)}
}
@media(max-width:1024px){
  .biz-grid{grid-template-columns:repeat(2,1fr)}
  .sys-grid{grid-template-columns:repeat(2,1fr)}
  .cols-3,.paper-grid{grid-template-columns:repeat(2,1fr)}
  .process{flex-wrap:wrap}
  .process-step{flex:1 1 30%}
  .process::before{display:none}
  .about-wrap{flex-direction:column}
  .contact-wrap{flex-direction:column}
  .footer .cols{grid-template-columns:1fr 1fr 1fr}
  .explore-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .menu,.nav-cta .btn{display:none}
  .burger{display:flex}
  .menu.open{display:flex;position:absolute;top:86px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 24px;gap:0;box-shadow:var(--shadow);border-top:1px solid var(--line);max-width:none;align-items:stretch}
  .menu.open>a,.menu.open .has-dropdown>a{padding:14px 0;border-bottom:1px solid var(--line);width:100%;justify-content:space-between}
  .menu.open a::after{display:none}
  .menu.open .has-dropdown{width:100%}
  .menu.open .dropdown{position:static;transform:none;opacity:1;visibility:visible;min-width:0;box-shadow:none;border:none;padding:0 0 8px 14px;grid-template-columns:1fr;background:transparent}
  .menu.open .dropdown a{padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px}
  .nav-cta{gap:8px}
  .slide h1{font-size:28px}
  .slide p{font-size:14px}
  .hero{height:480px}
  .innov-grid{grid-template-columns:1fr}
  .biz-grid,.sys-grid,.cols-3,.paper-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .logo-img{height:36px}
  .process-step{flex:1 1 45%}
  .about-stats{grid-template-columns:1fr 1fr}
  .form-row{flex-direction:column;gap:0}
  .footer .bottom{flex-direction:column;text-align:center}
}