/*
Theme Name: Huangu Sealing
Theme URI: https://huangu-sealing.app.workbuddy.host
Author: Jielei Rubber
Description: 寰固密封 / 长沙市解磊橡胶制品有限公司 企业官网主题
Version: 1.0
License: GNU GPL
Text Domain: huangu
*/
:root{
  --blue-900:#0A2E52; --blue-800:#0D3B66; --blue-700:#12508C; --blue-600:#1B62B8;
  --orange:#F58220; --orange-dark:#D96C0E;
  --bg:#FFFFFF; --bg-gray:#F5F7FA; --line:#E3E8EF; --text:#1F2937; --muted:#5B6675;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);font-size:15px;line-height:1.75;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
a{text-decoration:none;color:inherit;}
img{vertical-align:middle;}
h3,h4,h5{font-weight:500;}

/* topbar */
.topbar{background:var(--blue-900);color:#B9C9DC;font-size:13px;}
.topbar .wrap{display:flex;justify-content:space-between;height:34px;align-items:center;flex-wrap:wrap;gap:10px;}
.topbar b{color:#fff;font-weight:400;}

/* nav */
header.nav{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:99;}
.nav .wrap{display:flex;align-items:center;height:76px;gap:34px;}
.nav .logo img{height:52px;}
.nav ul{display:flex;list-style:none;gap:4px;flex:1;}
.nav ul a{display:block;padding:8px 15px;font-size:15px;color:var(--text);border-radius:6px;}
.nav ul a:hover,.nav ul a.on{color:var(--blue-700);background:#EDF3FA;font-weight:500;}
.nav .tel{text-align:right;}
.nav .tel .lab{font-size:12px;color:var(--muted);}
.nav .tel .num{font-size:19px;font-weight:700;color:var(--blue-800);letter-spacing:.5px;}

/* buttons */
.btn{display:inline-block;padding:12px 30px;border-radius:6px;font-size:15px;font-weight:500;border:none;cursor:pointer;}
.btn-orange{background:var(--orange);color:#fff;}
.btn-orange:hover{background:var(--orange-dark);}
.btn-line{border:1.5px solid rgba(255,255,255,.75);color:#fff;}
.btn-blue{background:var(--blue-700);color:#fff;}

/* hero */
.hero{background:linear-gradient(135deg,var(--blue-900) 0%,var(--blue-700) 100%);color:#fff;overflow:hidden;}
.hero .wrap{display:flex;align-items:center;min-height:470px;gap:40px;padding-top:30px;padding-bottom:30px;}
.hero h1{font-size:38px;line-height:1.35;font-weight:700;letter-spacing:1px;}
.hero h1 span{color:var(--orange);}
.hero p.sub{margin:18px 0 30px;font-size:16px;color:#C7D6E8;max-width:520px;}
.hero .ctas{display:flex;gap:16px;flex-wrap:wrap;}
.hero .art{flex:0 0 420px;}
.hero-tags{margin-top:34px;display:flex;gap:12px;flex-wrap:wrap;}
.hero-tags span{font-size:13px;color:#DCE7F3;border:1px solid rgba(255,255,255,.35);padding:5px 14px;border-radius:20px;}

/* sub page banner */
.banner{background:linear-gradient(135deg,var(--blue-900),var(--blue-700));color:#fff;padding:44px 0 40px;}
.banner h1{font-size:30px;letter-spacing:1px;}
.banner .en{font-size:12.5px;letter-spacing:3px;color:#8CA3BC;margin-top:6px;}
.banner .desc{color:#C7D6E8;margin-top:10px;max-width:760px;}
.crumb{font-size:13px;color:var(--muted);padding:16px 0;border-bottom:1px solid var(--line);}
.crumb a{color:var(--muted);}
.crumb span{color:var(--blue-700);}

/* stats */
.stats{background:#fff;border-bottom:1px solid var(--line);}
.stats .wrap{display:flex;}
.stats .it{flex:1;text-align:center;padding:30px 0;}
.stats .it+.it{border-left:1px solid var(--line);}
.stats .num{font-size:34px;font-weight:700;color:var(--blue-700);}
.stats .num i{font-style:normal;color:var(--orange);}
.stats .lab{font-size:13px;color:var(--muted);margin-top:4px;}

/* section */
section{padding:68px 0;}
.gray{background:var(--bg-gray);}
.sec-head{text-align:center;margin-bottom:40px;}
.sec-head h2{font-size:27px;color:var(--blue-900);letter-spacing:1px;}
.sec-head h2 em{font-style:normal;color:var(--orange);}
.sec-head .en{font-size:12.5px;color:#9AA7B5;letter-spacing:3px;margin-top:6px;}
.sec-head .desc{color:var(--muted);font-size:15px;margin-top:12px;}
.sec-head.left{text-align:left;}

/* cards */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.cards2{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.cards4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.2s;}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(13,59,102,.12);border-color:var(--blue-600);}
.card .pic{height:200px;background:linear-gradient(160deg,#EDF3FA,#DDE8F4);display:flex;align-items:center;justify-content:center;position:relative;}
.card .pic .tag{position:absolute;top:12px;left:12px;background:var(--orange);color:#fff;font-size:12px;padding:3px 12px;border-radius:3px;}
.card .pic .tag.blue{background:var(--blue-600);}
.card .bd{padding:22px 24px 26px;}
.card h3{font-size:19px;color:var(--blue-900);}
.card .spec{font-size:13px;color:var(--muted);margin:8px 0 14px;min-height:44px;}
.card ul{list-style:none;font-size:14px;}
.card ul li{padding:5px 0 5px 20px;position:relative;}
.card ul li::before{content:"";position:absolute;left:2px;top:13px;width:7px;height:7px;background:var(--orange);border-radius:2px;}
.card .more{display:inline-block;margin-top:14px;color:var(--blue-700);font-size:14px;font-weight:500;font-weight:500;}

/* apps */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.app{background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px 26px 24px;}
.app .ic{width:52px;height:52px;border-radius:12px;background:#EDF3FA;display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.app .t{font-size:17px;font-weight:500;color:var(--blue-900);}
.app .d{font-size:13px;color:var(--muted);margin:8px 0 12px;}
.app .kv{font-size:13.5px;color:var(--text);border-top:1px dashed var(--line);padding-top:10px;}
.app .kv b{color:var(--blue-700);font-weight:500;}

/* table */
.tbl{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;}
.tbl th{background:var(--blue-800);color:#fff;font-weight:500;padding:12px 16px;text-align:left;}
.tbl td{border-bottom:1px solid var(--line);padding:12px 16px;}
.tbl tr:nth-child(even) td{background:#FAFCFE;}
.tbl caption{caption-side:top;text-align:left;font-size:13px;color:var(--muted);padding-bottom:8px;}

/* gongyi bar */
.gongyi{background:linear-gradient(135deg,var(--blue-800),var(--blue-600));color:#fff;border-radius:12px;padding:42px 46px;display:flex;gap:40px;align-items:center;}
.gongyi .l{flex:1;}
.gongyi h3{font-size:23px;margin-bottom:12px;}
.gongyi h3 span{color:var(--orange);}
.gongyi p{color:#D4E0EE;font-size:14.5px;}
.gongyi .pts{display:flex;gap:14px;margin-top:22px;flex-wrap:wrap;}
.gongyi .pt{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:10px 18px;border-radius:8px;font-size:14px;}

/* why */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.why .w{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px 24px;}
.why .w .no{font-size:30px;font-weight:700;color:var(--line);}
.why .w h4{font-size:17px;color:var(--blue-900);margin:6px 0 8px;}
.why .w p{font-size:13.5px;color:var(--muted);}

/* certs */
.certs{display:flex;gap:18px;flex-wrap:wrap;}
.cert{width:calc(25% - 14px);height:150px;border:1px dashed #C6D2DF;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;color:#8FA1B5;font-size:14px;text-align:center;padding:0 14px;}

/* news list */
.news{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.nw{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px 26px;display:flex;gap:18px;}
.nw .date{flex:0 0 62px;text-align:center;background:#EDF3FA;border-radius:8px;padding:10px 0;font-size:12px;color:var(--muted);height:fit-content;}
.nw .date b{display:block;font-size:22px;color:var(--blue-700);font-weight:700;}
.nw h4{font-size:16.5px;color:var(--blue-900);}
.nw p{font-size:13.5px;color:var(--muted);margin-top:8px;}

/* timeline */
.tl{border-left:2px solid var(--line);padding-left:28px;margin-left:10px;}
.tl .it{position:relative;padding-bottom:26px;}
.tl .it::before{content:"";position:absolute;left:-35px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--orange);border:2px solid #fff;}
.tl .y{font-size:15px;font-weight:500;color:var(--blue-700);}
.tl .c{font-size:14px;color:var(--muted);}

/* inquiry */
.inquiry{background:var(--blue-900);color:#fff;}
.inquiry .wrap{display:flex;gap:60px;align-items:flex-start;}
.inquiry .info{flex:1;}
.inquiry h2{font-size:27px;margin-bottom:14px;}
.inquiry h2 em{font-style:normal;color:var(--orange);}
.inquiry p{color:#B9C9DC;font-size:15px;}
.inquiry .contact{margin-top:24px;font-size:15px;color:#DCE7F3;line-height:2.1;}
.inquiry .contact b{color:#fff;font-weight:500;}
.form{flex:0 0 460px;background:#fff;border-radius:10px;padding:28px 30px;color:var(--text);}
.form h3{color:var(--blue-900);font-size:18px;margin-bottom:16px;}
.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:6px;padding:11px 14px;font-size:14px;margin-bottom:14px;font-family:inherit;}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue-600);}
.form textarea{height:88px;resize:vertical;}
.form .btn{width:100%;}
.form .tip{font-size:12px;color:#9AA7B5;margin-top:10px;}

/* contact cards */
.cbox{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cbox .b{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px;}
.cbox .b .k{font-size:13px;color:var(--muted);}
.cbox .b .v{font-size:17px;color:var(--blue-900);font-weight:500;margin-top:6px;}
.map{height:280px;border:1px dashed #C6D2DF;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#8FA1B5;background:#fff;}

/* faq */
.faq{background:#fff;border:1px solid var(--line);border-radius:10px;padding:6px 26px;}
.faq details{border-bottom:1px solid var(--line);padding:16px 0;}
.faq details:last-child{border:none;}
.faq summary{font-size:16px;color:var(--blue-900);cursor:pointer;font-weight:500;}
.faq p{font-size:14px;color:var(--muted);margin-top:10px;}

/* footer */
footer{background:#07203A;color:#8CA3BC;font-size:13.5px;padding:46px 0 0;}
footer .cols{display:flex;gap:56px;padding-bottom:34px;flex-wrap:wrap;}
footer h5{color:#DCE7F3;font-size:15px;margin-bottom:14px;font-weight:500;}
footer li{list-style:none;line-height:2.1;}
footer .brand img{background:#fff;border-radius:8px;padding:8px;height:76px;}
footer .brand p{margin-top:12px;max-width:300px;}
.copy{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:16px 0;font-size:12.5px;color:#5E7893;}

@media (max-width:960px){
  .hero .wrap{flex-direction:column;}
  .hero .art{flex:auto;width:100%;}
  .cards3,.cards2,.cards4,.apps,.why,.news,.cbox{grid-template-columns:1fr;}
  .inquiry .wrap{flex-direction:column;}
  .form{flex:auto;width:100%;}
  .nav ul{display:none;}
  .stats .wrap{flex-wrap:wrap;}
  .stats .it{flex:0 0 50%;}
  .cert{width:calc(50% - 9px);}
}