/* ===== 徐州亚甄 A-Choice 官网样式 ===== */
:root{
  --brand:#1E50A0; --brand-dark:#163C78; --brand-soft:#E7EEF8;
  --ink:#1f2a37; --muted:#6b7886; --line:#e6ebf2; --bg:#f6f8fc;
  --ok:#1f9d55; --warn:#e08a00; --orange:#f5872b;
  --shadow:0 6px 24px rgba(20,40,80,.08); --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:inherit;text-decoration:none}
img{display:block} .muted{color:var(--muted)}

/* 导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px;margin:0 auto;height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 20px}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:38px;width:auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.1}
.brand-txt b{font-size:18px;color:var(--brand);font-weight:800}
.brand-txt .brand-cn{font-size:16.5px;letter-spacing:.5px}
.brand-txt i{font-size:10px;color:var(--muted);font-style:normal;letter-spacing:.5px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:8px 14px;border-radius:8px;font-size:14px;color:#33414f;font-weight:500;transition:.15s}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-admin{background:var(--brand)!important;color:#fff!important;font-weight:600}
.nav-admin:hover{background:var(--brand-dark)!important}
.nav-toggle{display:none;background:none;border:none;font-size:24px;color:var(--brand)}

/* 容器 */
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section.gray{background:linear-gradient(rgba(246,248,252,.93),rgba(246,248,252,.93)),url('../assets/bg-pattern.svg') repeat}
.sec-head{text-align:center;margin-bottom:38px}
.sec-head h2{font-size:30px;font-weight:800;color:var(--brand-dark)}
.sec-head p{color:var(--muted);margin-top:8px;font-size:15px}

/* 首页 Hero */
.hero{background:linear-gradient(rgba(18,49,95,.42),rgba(18,49,95,.30)),url('../assets/bg-hero.svg') center bottom/cover no-repeat,linear-gradient(135deg,#163C78,#1E50A0 70%);color:#fff;position:relative;overflow:hidden;padding:72px 0}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.12),transparent 70%)}
.hero .wrap{display:flex;gap:40px;align-items:center;flex-wrap:wrap}
.hero-left{flex:1;min-width:320px;z-index:1}
.hero-left h1{font-size:40px;font-weight:800;line-height:1.25;margin-bottom:16px}
.hero-left .lead{font-size:16px;opacity:.92;max-width:520px}
.hero-left .tags{margin-top:20px;display:flex;flex-wrap:wrap;gap:8px}
.hero-left .tags span{background:rgba(255,255,255,.16);padding:5px 12px;border-radius:20px;font-size:12px}
.hero-cta{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 26px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.15s}
.btn-primary{background:#fff;color:var(--brand)}
.btn-primary:hover{background:#eef3fb}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.15)}

/* 在线询价卡 */
.quote-card{width:min(400px,100%);background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.3);
  padding:22px;z-index:1;color:var(--ink)}
.quote-card h3{font-size:18px;color:var(--brand);display:flex;align-items:center;gap:8px;margin-bottom:4px}
.quote-card .qc-sub{font-size:12px;color:var(--muted);margin-bottom:14px}
.field{margin-bottom:11px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.field select,.field input{width:100%;height:40px;border:1px solid var(--line);border-radius:9px;padding:0 12px;font-size:14px;background:#fbfcfe;color:var(--ink)}
.field select:focus,.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.quote-btn{width:100%;height:44px;background:var(--brand);color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:700;margin-top:6px;cursor:pointer}
.quote-btn:hover{background:var(--brand-dark)}
.quote-tip{font-size:11px;color:var(--muted);margin-top:10px;text-align:center}

/* 询价结果 */
.quote-result{margin-top:12px}
.qr-ok{background:#e9f7ef;border:1px solid #b7e4c7;border-radius:10px;padding:12px;font-size:13px}
.qr-ok .pr{font-size:15px;color:var(--ok)}
.qr-none{background:#fff6e9;border:1px solid #f3d8a8;border-radius:10px;padding:12px;font-size:13px}
.qr-none .em{color:var(--warn);font-weight:700}
.rate-line{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--line);font-size:13px}
.rate-line:last-child{border-bottom:none}
.rate-line b{color:var(--brand)}

/* 业务板块 */
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.biz-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.18s}
.biz-card:hover{transform:translateY(-4px);border-color:var(--brand)}
.biz-card .ic{font-size:30px}
.biz-card h3{font-size:17px;margin:10px 0 8px;color:var(--brand-dark)}
.biz-card p{font-size:13px;color:var(--muted)}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.adv-card{text-align:center;padding:20px 14px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.adv-card .n{font-size:30px;font-weight:800;color:var(--brand)}
.adv-card h4{margin:8px 0 4px;font-size:15px}
.adv-card p{font-size:12px;color:var(--muted)}

/* 关于我们 */
.about-flex{display:flex;gap:40px;flex-wrap:wrap;align-items:center}
.about-text{flex:1;min-width:320px}
.about-text p{font-size:15px;color:#3a4654;margin-bottom:14px}
.values{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:10px}
.value{border-left:3px solid var(--brand);padding:10px 14px;background:var(--bg);border-radius:0 8px 8px 0}
.value h4{color:var(--brand-dark);font-size:14px}
.value p{font-size:12px;color:var(--muted);margin:3px 0 0}
.about-stat{flex:0 0 280px;display:grid;gap:14px}
.stat-box{background:var(--brand);color:#fff;border-radius:var(--radius);padding:22px;text-align:center}
.stat-box .num{font-size:34px;font-weight:800}
.stat-box .lab{font-size:13px;opacity:.9}

/* 加入我们 */
.job-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.job{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.job h3{color:var(--brand-dark);font-size:16px}
.job .meta{font-size:12px;color:var(--muted);margin:6px 0 10px}
.job p{font-size:13px;color:#3a4654}
.job .tag{display:inline-block;background:var(--brand-soft);color:var(--brand);font-size:11px;padding:2px 9px;border-radius:6px;margin-top:10px}

/* 联系我们 */
.contact-flex{display:flex;gap:40px;flex-wrap:wrap}
.contact-info{flex:1;min-width:280px}
.contact-info .ci{display:flex;gap:12px;margin-bottom:18px}
.contact-info .ci .ic{font-size:22px}
.contact-info .ci b{display:block;font-size:14px;color:var(--brand-dark)}
.contact-info .ci span{font-size:13px;color:var(--muted)}
.contact-form{flex:1;min-width:280px}
.contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;font-size:14px;margin-bottom:12px;font-family:inherit;background:#fbfcfe}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.map-box{height:200px;background:linear-gradient(135deg,#e7eef8,#cdddf3);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:14px;margin-top:18px}

/* 文件下载 */
.dl-cat{margin-bottom:22px}
.dl-cat h3{font-size:16px;color:var(--brand-dark);margin-bottom:10px;padding-left:10px;border-left:3px solid var(--brand)}
.dl-list{display:flex;flex-wrap:wrap;gap:10px}
.dl-item{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-size:13px;color:var(--ink);box-shadow:var(--shadow);transition:.15s}
.dl-item:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* 页脚 */
.foot{background:#0f1f3d;color:#cdd8e8;padding:48px 0 0}
.foot-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:30px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.foot-col p{font-size:13px;line-height:1.9}
.foot-col a{display:block;font-size:13px;color:#aab8cc;padding:3px 0}
.foot-col a:hover{color:#fff}
.foot-bar{border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:12px;color:#8ea0ba;padding:18px;margin-top:36px}

/* 电子宣传册（关于我们） */
.brochure{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;max-width:780px;margin:0 auto}
.bro-main{position:relative;display:flex;align-items:center;justify-content:center;background:#0f1f3d;border-radius:10px;overflow:hidden;min-height:440px}
.bro-main .bro-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:none;border-radius:50%;background:rgba(255,255,255,.85);color:var(--brand-dark);font-size:24px;line-height:1;cursor:pointer;z-index:2;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,0,0,.25)}
.bro-main .bro-nav.prev{left:12px}
.bro-main .bro-nav.next{right:12px}
.bro-main .bro-nav:hover{background:#fff}
#bro-img{width:100%;max-height:600px;object-fit:contain;cursor:pointer;display:block}
.bro-bar{text-align:center;font-size:13px;color:var(--muted);margin:14px 0}
.bro-thumbs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.bro-thumb{height:74px;border:2px solid transparent;border-radius:6px;cursor:pointer;opacity:.7;transition:.15s}
.bro-thumb:hover{opacity:1}
.bro-thumb.cur{border-color:var(--brand);opacity:1}

/* Toast */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(20px);background:#1f2a37;color:#fff;
  padding:12px 22px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:90;box-shadow:0 8px 30px rgba(0,0,0,.3)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:860px){
  .nav-menu{position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px;
    border-bottom:1px solid var(--line);display:none}
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%}
  .nav-toggle{display:block}
  .biz-grid,.adv-grid{grid-template-columns:1fr 1fr}
  .job-grid,.values{grid-template-columns:1fr}
  .foot-inner{grid-template-columns:1fr 1fr}
  .hero-left h1{font-size:30px}
}