/* 鲸誉国际企服 · 官网原型样式 */
:root{
  --navy:#12304f;        /* 深藏青 */
  --navy-2:#1a3c60;
  --navy-3:#0d2440;
  --gold:#c9a227;        /* 品牌金黄 */
  --gold-2:#e0bd4a;
  --ink:#1c2430;
  --sub:#5d6b7c;
  --line:#e6eaf0;
  --bg:#f6f7f9;
  --white:#fff;
  --radius:14px;
  --shadow:0 6px 24px rgba(18,48,79,.08);
  --shadow-lg:0 14px 44px rgba(18,48,79,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);line-height:1.7;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy-3);color:#c8d4e2;font-size:12.5px}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;align-items:center;height:38px}
.topbar .l{display:flex;gap:18px;flex-wrap:wrap}
.topbar b{color:var(--gold-2);font-weight:600}

header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:26px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{height:46px;width:auto}
.brand .name{font-size:17px;font-weight:700;color:var(--navy);letter-spacing:.5px}
.brand .name span{display:block;font-size:10.5px;color:var(--sub);font-weight:400;letter-spacing:1.4px}
nav.main{display:flex;gap:26px;margin-left:auto;font-size:15px}
nav.main a{padding:6px 0;color:#2b3a4b;position:relative}
nav.main a:hover{color:var(--navy)}
nav.main a.on{color:var(--navy);font-weight:600}
nav.main a.on:after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;background:var(--gold);border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;
  padding:12px 22px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:.2s}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#3a2c00}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}
.btn-line{border-color:rgba(255,255,255,.55);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:9px 16px;font-size:13.5px}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;
  background:radial-gradient(1100px 520px at 78% -8%,#1f4b78 0%,transparent 60%),
             linear-gradient(160deg,#0d2440 0%,#12304f 52%,#173e63 100%)}
.hero:after{content:"";position:absolute;inset:auto -10% -58% -10%;height:72%;
  background:radial-gradient(closest-side,rgba(201,162,39,.20),transparent 70%)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:46px;
  align-items:center;padding:74px 22px 78px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:1.6px;
  color:#d9c07a;border:1px solid rgba(201,162,39,.42);border-radius:999px;padding:6px 14px;margin-bottom:20px}
.hero h1{margin:0 0 16px;font-size:44px;line-height:1.22;letter-spacing:.4px}
.hero h1 em{font-style:normal;color:var(--gold-2)}
.hero p.lead{margin:0 0 26px;font-size:16.5px;color:#cddaea;max-width:560px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{display:flex;gap:26px;margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);flex-wrap:wrap}
.hero .trust div{font-size:12.5px;color:#a9bdd2}
.hero .trust b{display:block;font-size:22px;color:#fff;font-weight:700;letter-spacing:.5px}
.hero .trust span.ph{color:#ffd76a}
.heroart{position:relative}
.heroart .frame{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:20px;padding:16px;backdrop-filter:blur(6px)}
.heroart .pic{aspect-ratio:4/3;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,#20456c,#162f4c);color:#93a9c0;font-size:13px;text-align:center;padding:18px}
.heroart .badge{position:absolute;right:-8px;bottom:-14px;background:#fff;color:var(--navy);
  border-radius:12px;padding:11px 15px;box-shadow:var(--shadow-lg);font-size:12.5px;font-weight:600}
.heroart .badge small{display:block;color:var(--sub);font-weight:400;font-size:11px}

/* ---------- 通用 section ---------- */
section{padding:66px 0}
section.alt{background:#fff}
.sec-head{max-width:720px;margin:0 auto 40px;text-align:center}
.sec-head .kicker{font-size:12.5px;letter-spacing:2px;color:var(--gold);font-weight:700}
.sec-head h2{margin:10px 0 12px;font-size:30px;letter-spacing:.3px;color:var(--navy)}
.sec-head p{margin:0;color:var(--sub);font-size:15px}

.grid{display:grid;gap:20px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}

.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);transition:.22s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#d6dEEA}
.card .ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#eef3f9,#e2eaf4);font-size:22px;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:17.5px;color:var(--navy)}
.card p{margin:0;color:var(--sub);font-size:14.5px}
.card ul{margin:12px 0 0;padding-left:18px;color:var(--sub);font-size:14px}
.card ul li{margin:4px 0}
.card .more{display:inline-block;margin-top:14px;font-size:13.5px;color:var(--navy);font-weight:600}
.card .more:after{content:"›";margin-left:4px}

/* 服务卡（带编号） */
.svc{position:relative;padding-top:30px}
.svc .no{position:absolute;top:-14px;left:24px;background:var(--navy);color:#fff;font-size:12.5px;
  font-weight:700;border-radius:999px;padding:5px 12px;letter-spacing:1px}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;position:relative}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:-16px;left:22px;width:34px;height:34px;
  border-radius:50%;background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#3a2c00;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;box-shadow:var(--shadow)}
.step h4{margin:14px 0 6px;font-size:16px;color:var(--navy)}
.step p{margin:0;font-size:14px;color:var(--sub)}

/* 案例卡 */
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.case .cover{height:170px;display:flex;align-items:center;justify-content:center;font-size:38px;
  background:linear-gradient(135deg,#1b3b5e,#2b5b86);color:#fff}
.case .body{padding:22px}
.case .tag{display:inline-block;background:#eef3f9;color:var(--navy);font-size:11.5px;font-weight:600;
  border-radius:6px;padding:3px 9px;margin-bottom:10px}
.case h3{margin:0 0 10px;font-size:17.5px;color:var(--navy)}
.case p{margin:0 0 12px;color:var(--sub);font-size:14.5px}
.case .kv{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--sub);
  border-top:1px dashed var(--line);padding-top:12px}
.case .kv b{color:var(--navy);display:block;font-size:15px}
.placeholder{background:#fff8e1;border-bottom:1px dashed #d9b74a;color:#7a5a00;padding:0 4px;border-radius:3px}

/* 资质条 */
.cred{background:linear-gradient(135deg,#0f2b49,#173e63);color:#dbe6f2;border-radius:16px;
  padding:28px 30px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cred div{font-size:12.5px;color:#a9bdd2}
.cred b{display:block;color:#fff;font-size:15.5px;margin-bottom:4px;font-weight:600}

/* FAQ */
.faq{max-width:900px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);font-size:15.5px}
.faq p{margin:10px 0 0;color:var(--sub);font-size:14.5px}

/* CTA 条 */
.cta-band{background:linear-gradient(135deg,var(--navy),#1d4a76);color:#fff;border-radius:18px;
  padding:40px 42px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-band h3{margin:0 0 8px;font-size:24px}
.cta-band p{margin:0;color:#cbd9e8;font-size:14.5px}

/* 页脚 */
footer.site{background:var(--navy-3);color:#9fb3c8;font-size:13.5px;padding:46px 0 26px;margin-top:10px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:26px}
footer.site h5{color:#fff;margin:0 0 12px;font-size:14.5px}
footer.site a{display:block;padding:3px 0;color:#9fb3c8}
footer.site a:hover{color:var(--gold-2)}
footer.site .foot-legal{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7f93a8}

/* 侧边悬浮咨询 */
.side{position:fixed;right:0;top:38%;z-index:60;display:flex;flex-direction:column;gap:2px}
.side a{background:var(--navy);color:#fff;font-size:12.5px;padding:12px 10px;writing-mode:vertical-rl;
  letter-spacing:2px;border-top-left-radius:10px;border-bottom-left-radius:10px;box-shadow:var(--shadow)}
.side a.gold{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#3a2c00;font-weight:700}

/* 内页头图 */
.pagehead{background:linear-gradient(150deg,#0d2440,#1b4670);color:#fff;padding:56px 0}
.pagehead h1{margin:0 0 10px;font-size:32px}
.pagehead p{margin:0;color:#c2d2e3;font-size:15px}
.crumb{font-size:12.5px;color:#9fb3c8;margin-bottom:12px}
.crumb a:hover{color:var(--gold-2)}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:26px}
.info-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.info-list .row{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.info-list .row:last-child{border-bottom:0}
.info-list .ic{width:38px;height:38px;border-radius:10px;background:#eef3f9;display:flex;align-items:center;
  justify-content:center;font-size:18px;flex:none}
.info-list b{display:block;font-size:14px;color:var(--navy)}
.info-list span{font-size:13.5px;color:var(--sub)}
form.lead{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
form.lead label{display:block;font-size:13px;color:var(--sub);margin:0 0 6px}
form.lead input,form.lead select,form.lead textarea{width:100%;border:1px solid var(--line);border-radius:10px;
  padding:12px 13px;font-size:14.5px;margin-bottom:14px;font-family:inherit;background:#fbfcfe}
form.lead input:focus,form.lead textarea:focus,form.lead select:focus{outline:2px solid rgba(201,162,39,.35);border-color:var(--gold)}
form.lead .hint{font-size:12px;color:var(--sub)}

/* 移动端 */
@media (max-width:1020px){
  .hero .wrap{grid-template-columns:1fr;padding:52px 22px 60px}
  .hero h1{font-size:34px}
  .g4,.steps{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr 1fr}
  .cred{grid-template-columns:repeat(2,1fr)}
  footer.site .cols{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  nav.main{display:none}
}
@media (max-width:620px){
  .topbar .l span.hide{display:none}
  header.site .wrap{height:64px;gap:12px}
  .brand img{height:38px}
  .hero h1{font-size:27px}
  .hero p.lead{font-size:15px}
  section{padding:46px 0}
  .sec-head h2{font-size:23px}
  .g4,.g3,.g2,.steps,.cred,footer.site .cols{grid-template-columns:1fr}
  .cta-band{padding:28px 24px}
  .side{display:none}
  .card{padding:22px 20px}
}

/* ---------- 新增：竖版海报横滑 / 环境大图 / 左右图文 ---------- */
.prow{display:flex;gap:16px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory}
.prow::-webkit-scrollbar{height:8px}
.prow::-webkit-scrollbar-thumb{background:#cfd8e3;border-radius:8px}
.prow::-webkit-scrollbar-track{background:#eef1f6;border-radius:8px}
.prow .poster{flex:0 0 268px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.prow .poster img{width:100%;display:block}
.prow .poster .cap{padding:10px 12px 12px;font-size:13px;color:var(--sub);line-height:1.5}
.prow .poster .cap b{display:block;color:var(--navy);font-size:14.5px;margin-bottom:3px}
.hint{font-size:12.5px;color:var(--sub);margin:0 0 12px}
.wideband{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.wideband img{width:100%;height:360px;object-fit:cover;display:block}
.wideband .ov{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;padding:0 46px;
  background:linear-gradient(90deg,rgba(10,28,50,.88) 0%,rgba(10,28,50,.42) 60%,rgba(10,28,50,.08) 100%);color:#fff}
.wideband .ov h3{margin:0 0 10px;font-size:26px}
.wideband .ov p{margin:0;color:#cddaea;font-size:15px;max-width:560px}
.duo{display:grid;grid-template-columns:.44fr .56fr;gap:28px;align-items:center}
.duo .pic{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.duo .pic img{width:100%;display:block}
.duo ul{margin:14px 0 20px;padding-left:18px}
@media (max-width:820px){
  .duo{grid-template-columns:1fr}
  .wideband img{height:250px}
  .wideband .ov{padding:0 20px}
  .wideband .ov h3{font-size:20px}
  .wideband .ov p{font-size:13.5px}
  .prow .poster{flex:0 0 210px}
}

/* ---------- 视频介绍 ---------- */
.videos{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.vcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.vcard .holder{position:relative;aspect-ratio:16/9;background:#0b1a2c;cursor:pointer}
.vcard .holder img{width:100%;height:100%;object-fit:cover;display:block}
.vcard .holder .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(8,20,36,.30);transition:.2s}
.vcard .holder:hover .play{background:rgba(8,20,36,.16)}
.vcard .holder .play span{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.94);color:var(--navy);
  display:flex;align-items:center;justify-content:center;font-size:24px;padding-left:4px;box-shadow:0 8px 24px rgba(0,0,0,.28)}
.vcard .holder video{width:100%;height:100%;display:block;background:#000}
.vcard .cap{padding:12px 15px 15px;font-size:13.5px;color:var(--sub)}
.vcard .cap b{display:block;color:var(--navy);font-size:15.5px;margin-bottom:3px}
/* ---------- 下载按钮 ---------- */
.dl{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.dl a{display:inline-flex;align-items:center;gap:11px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 22px;font-size:15px;font-weight:600;color:var(--navy);box-shadow:var(--shadow);transition:.2s}
.dl a:hover{border-color:var(--gold);transform:translateY(-2px)}
.dl a .ic{font-size:22px}
.dl a small{display:block;font-weight:400;color:var(--sub);font-size:11.5px;margin-top:2px}
@media (max-width:820px){ .videos{grid-template-columns:1fr} .dl a{width:100%;justify-content:flex-start} }