/* 冠电创新项目 gdcxxm.com - 主样式 */
:root{
  --blue:#0056A9;
  --blue-dark:#003D7A;
  --blue-light:#e8f0f9;
  --ink:#1f2a37;
  --gray:#5b6675;
  --line:#e6e9ee;
  --bg:#f6f8fb;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;color:var(--ink);line-height:1.7;background:#fff}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 顶部 */
.header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 6px rgba(0,0,0,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo-box{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--blue-dark)}
.logo-box .logo-mark{width:38px;height:38px;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;letter-spacing:-1px}
.nav-box ul{list-style:none;display:flex;gap:30px}
.nav-box a{color:var(--ink);font-size:15px;font-weight:500;padding:6px 0;position:relative}
.nav-box a:hover,.nav-box a.active{color:var(--blue)}
.nav-box a.active::after{content:"";position:absolute;left:0;right:0;bottom:-22px;height:3px;background:var(--blue);border-radius:3px}
.header-phone{color:var(--blue);font-weight:700;font-size:16px;white-space:nowrap}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--blue-dark)}

/* Hero */
.hero{background:linear-gradient(135deg,var(--blue-dark),var(--blue));color:#fff;padding:90px 0 100px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;background:rgba(255,255,255,.06);border-radius:50%}
.hero h1{font-size:42px;line-height:1.3;margin-bottom:18px;font-weight:800}
.hero p{font-size:18px;opacity:.92;max-width:720px;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-tags span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:7px 16px;border-radius:20px;font-size:14px}
.btn{display:inline-block;padding:13px 30px;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;border:none;transition:.2s}
.btn-primary{background:#fff;color:var(--blue)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.18)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark)}
.btn-ghost{background:var(--blue-light);color:var(--blue)}

/* 通用版块 */
section{padding:70px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head .eyebrow{color:var(--blue);font-weight:700;font-size:14px;letter-spacing:2px;text-transform:uppercase}
.section-head h2{font-size:32px;margin:10px 0 12px;color:var(--blue-dark)}
.section-head p{color:var(--gray);font-size:16px;max-width:680px;margin:0 auto}
.bg-gray{background:var(--bg)}

/* 卡片网格 */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(0,60,130,.1);border-color:transparent}
.card .ico{width:52px;height:52px;border-radius:10px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px;color:var(--blue-dark)}
.card p{color:var(--gray);font-size:15px}
.card ul{list-style:none;margin-top:12px}
.card ul li{padding-left:20px;position:relative;font-size:14px;color:var(--gray);margin:6px 0}
.card ul li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:700}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;counter-reset:step}
.step{text-align:center;position:relative}
.step .num{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;position:relative;z-index:2}
.step:not(:last-child) .num::after{content:"";position:absolute;top:50%;left:100%;width:calc(100% - 0px);height:2px;background:var(--line);z-index:-1}
.step h4{font-size:16px;color:var(--blue-dark);margin-bottom:6px}
.step p{font-size:13px;color:var(--gray)}

/* 案例卡 */
.case-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25px}
.case-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(0,60,130,.1)}
.case-card .thumb{height:180px;background:linear-gradient(135deg,var(--blue-light),#dce8f6);display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:40px;overflow:hidden}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;display:block;filter:grayscale(0.6) blur(2px)}
.case-card .body{padding:22px}
.case-card .tag{display:inline-block;background:var(--blue-light);color:var(--blue);font-size:12px;padding:3px 10px;border-radius:4px;margin-bottom:10px}
.case-card h3{font-size:17px;margin-bottom:8px;color:var(--blue-dark);line-height:1.4}
.case-card p{font-size:14px;color:var(--gray);margin-bottom:12px}
.case-card .more{font-size:14px;color:var(--blue);font-weight:600}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .n{font-size:40px;font-weight:800;color:#fff}
.stat .l{color:rgba(255,255,255,.85);font-size:15px;margin-top:4px}

/* 内页 banner */
.page-banner{background:linear-gradient(135deg,var(--blue-dark),var(--blue));color:#fff;padding:60px 0}
.page-banner h1{font-size:34px}
.page-banner p{opacity:.9;margin-top:6px}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:14px;overflow:hidden}
.faq-q{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:16px}
.faq-q .arr{transition:.3s;color:var(--blue)}
.faq-item.open .arr{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 24px;color:var(--gray)}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 20px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info .item{display:flex;gap:14px;margin-bottom:24px}
.contact-info .item .ico{flex:0 0 46px;height:46px;border-radius:10px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:20px}
.contact-info h4{color:var(--blue-dark);margin-bottom:4px}
.contact-info p{color:var(--gray)}
.big-phone{font-size:30px;font-weight:800;color:var(--blue)}

/* CTA 横幅 */
.cta-band{background:linear-gradient(135deg,var(--blue-dark),var(--blue));color:#fff;text-align:center;padding:60px 20px;border-radius:16px}
.cta-band h2{font-size:30px;margin-bottom:12px}
.cta-band p{opacity:.92;margin-bottom:26px;font-size:17px}

/* 案例页布局：正文 + 侧边栏 */
.case-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
.article{max-width:none;margin:0}
.sidebar{position:sticky;top:90px}
.sidebar .card{padding:24px}
.sidebar h4{font-size:16px;color:var(--blue-dark);margin-bottom:14px}
.sidebar .side-phone{font-size:24px;font-weight:800;color:var(--blue);margin:6px 0}
.related-mini{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.related-mini:last-child{border-bottom:none}
.related-mini img{flex:0 0 56px;width:56px;height:56px;object-fit:cover;border-radius:8px;display:block}
.related-mini .e{flex:0 0 42px;height:42px;border-radius:8px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:20px}
.related-mini h5{font-size:14px;line-height:1.4;color:var(--ink)}
.related-mini a:hover h5{color:var(--blue)}

/* 项目流程时间线 */
.timeline{position:relative;margin:24px 0;padding-left:28px;border-left:2px solid var(--blue-light)}
.tl-item{position:relative;margin-bottom:22px}
.tl-item::before{content:"";position:absolute;left:-35px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--blue);border:3px solid #fff;box-shadow:0 0 0 2px var(--blue)}
.tl-item h4{font-size:16px;color:var(--blue-dark);margin-bottom:4px}
.tl-item p{font-size:14px;color:var(--gray)}

/* 案例页内 FAQ */
.case-faq{margin-top:36px;padding:28px;background:var(--bg);border-radius:12px}
.case-faq h3{color:var(--blue-dark);margin-bottom:16px;font-size:20px}

/* 案例首图 */
.case-hero{width:100%;border-radius:12px;margin:0 0 28px;box-shadow:0 8px 24px rgba(0,60,130,.12);background:var(--blue-light)}
.case-no{display:inline-block;background:var(--blue-light);color:var(--blue);font-size:13px;font-weight:700;padding:4px 12px;border-radius:6px;margin-left:10px;letter-spacing:.5px}

/* 文章/案例详情 */
.article{max-width:820px;margin:0 auto}
.article h1{font-size:30px;color:var(--blue-dark);margin-bottom:14px;line-height:1.35}
.article .meta{color:var(--gray);font-size:14px;margin-bottom:26px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.article .content p{margin:16px 0;font-size:16px;color:#2d3748}
.article .content h2{font-size:23px;color:var(--blue-dark);margin:30px 0 12px}
.article .content h3{font-size:19px;color:var(--ink);margin:24px 0 10px}
.article .content ul,.article .content ol{margin:14px 0 14px 24px}
.article .content li{margin:6px 0}
.breadcrumb{font-size:14px;color:var(--gray);padding:18px 0}
.breadcrumb a{color:var(--gray)}
.breadcrumb a:hover{color:var(--blue)}

/* 筛选标签 */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px}
.filter-bar a{padding:8px 18px;border:1px solid var(--line);border-radius:20px;font-size:14px;color:var(--gray);background:#fff}
.filter-bar a.active,.filter-bar a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* 页脚 */
.footer{background:#0d1b2c;color:#aab6c5;padding:50px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer a{color:#aab6c5;display:block;margin:8px 0;font-size:14px}
.footer a:hover{color:#fff}
.footer .brand{color:#fff;font-size:20px;font-weight:700;margin-bottom:12px}
.footer-bottom{border-top:1px solid #1d2c40;padding-top:20px;text-align:center;font-size:13px;color:#7a889a}

@media(max-width:900px){
  .grid-3,.grid-4,.steps,.stats,.contact-grid,.footer-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:not(:last-child) .num::after{display:none}
  .hero h1{font-size:30px}
  .nav-toggle{display:block}
  .nav-box{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line)}
  .nav-box.open{display:block}
  .nav-box ul{flex-direction:column;gap:0;padding:10px 20px}
  .nav-box a{display:block;padding:12px 0}
  .header-phone{display:none}
}
@media(max-width:900px){
  .case-layout{grid-template-columns:1fr}
  .sidebar{position:static}
}
@media(max-width:560px){
  .grid-3,.grid-4,.stats,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .hero{padding:60px 0 70px}
  .hero h1{font-size:26px}
  .section-head h2{font-size:25px}
}

/* ===== 视觉增强 v2 ===== */
html{scroll-behavior:smooth}
body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

/* Hero 背景图 */
.hero{background:linear-gradient(135deg,rgba(0,42,92,.93),rgba(0,86,169,.88)),url('/images/hero-banner.svg') center/cover}
.hero::before{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background:radial-gradient(circle at 20% 80%,rgba(255,255,255,.08) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(100,180,255,.1) 0%,transparent 40%);pointer-events:none}

/* 卡片增强 */
.card{box-shadow:0 1px 3px rgba(0,30,80,.04)}
.card:hover{box-shadow:0 16px 40px rgba(0,60,130,.12)}
.case-card{box-shadow:0 1px 3px rgba(0,30,80,.04)}
.case-card:hover{box-shadow:0 16px 40px rgba(0,60,130,.12)}
.case-card .thumb img{transition:transform .4s ease, filter .5s ease}
.case-card:hover .thumb img{transform:scale(1.05);filter:grayscale(0) blur(0)}

/* 按钮增强 */
.btn-blue:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,86,169,.3)}
.btn{transition:all .25s ease}

/* 回到顶部 */
.back-top{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;background:var(--blue);color:#fff;border:none;font-size:20px;cursor:pointer;box-shadow:0 4px 16px rgba(0,86,169,.3);opacity:0;visibility:hidden;transition:.3s;z-index:99;display:flex;align-items:center;justify-content:center}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--blue-dark);transform:translateY(-3px)}

/* 筛选栏增强 */
.filter-bar a{transition:all .2s ease}

/* 流程步骤增强 */
.step .num{box-shadow:0 4px 12px rgba(0,86,169,.25)}

/* 表格增强 */
.article .content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article .content table th{background:var(--blue);color:#fff;padding:12px 14px;text-align:left;font-weight:600}
.article .content table td{padding:10px 14px;border-bottom:1px solid var(--line)}
.article .content table tr:nth-child(even) td{background:#f8fafc}

/* 搜索框增强 */
form[action="/cases"] input[type="text"]:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,86,169,.1)}
form[action="/cases"] button{transition:all .2s}

/* 面包屑增强 */
.breadcrumb a{transition:color .2s}

/* 统计数字动效 */
.stat .n{text-shadow:0 2px 8px rgba(0,0,0,.15)}

/* 响应式表格 */
@media(max-width:600px){
  .article .content table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 图片淡马赛克保护 */
.content img:not(.qa-hero), .case-hero, .news-hero { filter: blur(2.4px) contrast(0.78); transition: filter 0.3s; }
.content img:not(.qa-hero):hover, .case-hero:hover { filter: blur(0) contrast(1); }


.qa-hero { filter: none !important; }