/* 北京恒诚信综合专业服务门户网站 - 全站样式 */
:root{
  --red:#A6192E;
  --red-deep:#821522;
  --gold:#C9A55C;
  --gold-light:#E3C98C;
  --navy:#152238;
  --navy-2:#1D2F4E;
  --ink:#22293A;
  --gray:#66707F;
  --bg-soft:#F6F7F9;
  --border:#E5E8EC;
  --shadow:0 10px 30px rgba(21,34,56,.08);
  --font:"Microsoft YaHei","微软雅黑","PingFang SC","Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:#fff;line-height:1.75;font-size:16px}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin:0 auto}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--navy);color:rgba(255,255,255,.78);font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar a{color:rgba(255,255,255,.78);margin-left:18px;transition:color .2s}
.topbar a:hover{color:var(--gold-light)}
.topbar .hotline b{color:var(--gold-light);font-weight:700}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 14px rgba(21,34,56,.08)}
.main-nav{display:flex;align-items:center;justify-content:space-between;height:82px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:14px;flex:none;white-space:nowrap}
.brand-mark{height:52px;width:auto;display:block;border-radius:8%;box-shadow:0 6px 14px rgba(166,25,46,.28);flex:none}
.brand-logo{height:56px;width:auto;display:block;flex:none}
.brand-text .cn{font-size:22px;font-weight:700;color:var(--navy);letter-spacing:2px;white-space:nowrap}
.brand-text .en{font-size:10.5px;color:var(--gray);letter-spacing:.5px;margin-top:-2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.nav-links>li{position:relative;flex:none}
.nav-links>li>a{display:block;padding:0 14px;line-height:82px;font-size:15.5px;color:var(--navy);font-weight:600;border-bottom:3px solid transparent;transition:all .2s;white-space:nowrap}
.nav-links>li>a:hover,.nav-links>li>a.active{color:var(--red);border-bottom-color:var(--gold)}
.nav-links .has-sub>a::after{content:"";display:inline-block;width:0;height:0;border:4px solid transparent;border-top:5px solid currentColor;margin-left:6px;vertical-align:middle;transform:translateY(-2px)}
.sub-menu{position:absolute;top:82px;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;min-width:190px;box-shadow:var(--shadow);border-top:3px solid var(--gold);border-radius:0 0 10px 10px;opacity:0;visibility:hidden;transition:all .25s}
.nav-links li:hover .sub-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.sub-menu a{display:block;padding:13px 22px;font-size:15px;color:var(--navy);white-space:nowrap;border-bottom:1px solid var(--border);transition:all .2s}
.sub-menu a:last-child{border-bottom:none}
.sub-menu a:hover{background:var(--bg-soft);color:var(--red);padding-left:28px}
.nav-toggle{display:none}

/* ===== 首屏 ===== */
.hero{position:relative;min-height:640px;display:flex;align-items:center;background:var(--navy);overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url("../images/hero.png") center right/cover no-repeat}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,20,33,.92) 0%,rgba(13,20,33,.78) 38%,rgba(13,20,33,.28) 68%,rgba(13,20,33,.15) 100%)}
.hero-content{position:relative;z-index:2;width:min(1200px,92%);margin:0 auto;padding:110px 0 130px}
.hero-tag{display:inline-flex;align-items:center;gap:10px;color:var(--gold-light);font-size:14px;letter-spacing:4px;margin-bottom:22px}
.hero-tag::before,.hero-tag::after{content:"";width:36px;height:1px;background:var(--gold)}
.hero h1{font-size:52px;color:#fff;font-weight:700;letter-spacing:3px;line-height:1.35;text-shadow:0 4px 24px rgba(0,0,0,.35)}
.hero h1 em{font-style:normal;color:var(--gold-light)}
.hero .sub{margin:18px 0 14px;font-size:22px;color:rgba(255,255,255,.92);letter-spacing:5px;font-weight:300}
.hero .desc{max-width:760px;font-size:15.5px;color:rgba(255,255,255,.68);line-height:1.9}
.hero-btns{display:flex;gap:18px;margin-top:44px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 38px;font-size:16px;font-weight:600;letter-spacing:2px;border-radius:4px;transition:all .25s}
.btn-gold{background:linear-gradient(135deg,var(--gold) 0%,#B8924A 100%);color:#fff;box-shadow:0 8px 20px rgba(201,165,92,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(201,165,92,.45)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{border-color:var(--gold-light);color:var(--gold-light)}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-deep)}

/* ===== 通用板块 ===== */
.section{padding:90px 0}
.section.soft{background:var(--bg-soft)}
.sec-head{text-align:center;margin-bottom:56px}
.sec-label{display:inline-block;font-size:13px;letter-spacing:6px;color:var(--gold);font-weight:700;text-transform:uppercase}
.sec-head h2{font-size:34px;color:var(--navy);font-weight:700;letter-spacing:2px;margin-top:10px}
.sec-head .line{width:64px;height:3px;margin:18px auto 0;background:linear-gradient(90deg,var(--red),var(--gold));border-radius:2px}
.sec-head p{margin-top:16px;color:var(--gray);font-size:15.5px}

/* ===== 四大板块卡片 ===== */
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.pillar-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:38px 28px 30px;position:relative;overflow:hidden;box-shadow:var(--shadow);transition:all .3s}
.pillar-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--red),var(--gold));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.pillar-card:hover{transform:translateY(-8px)}
.pillar-card:hover::before{transform:scaleX(1)}
.p-icon{width:66px;height:66px;border-radius:12px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.p-icon svg{width:34px;height:34px;stroke:var(--gold-light)}
.pillar-card h3{font-size:20px;color:var(--navy);letter-spacing:1px}
.pillar-card .en{font-size:11px;color:var(--gold);letter-spacing:2px;margin:2px 0 12px}
.pillar-card p{font-size:14px;color:var(--gray);line-height:1.8;min-height:100px}
.pillar-card ul{margin:14px 0 18px}
.pillar-card ul li{font-size:13.5px;color:var(--ink);padding:5px 0 5px 16px;position:relative;border-bottom:1px dashed var(--border)}
.pillar-card ul li:last-child{border-bottom:none}
.pillar-card ul li::before{content:"";position:absolute;left:0;top:14px;width:7px;height:7px;background:var(--gold);transform:rotate(45deg)}
.pillar-more{display:inline-block;font-size:14px;font-weight:600;color:var(--red)}
.pillar-more:hover{letter-spacing:1px}

/* ===== 数据带 ===== */
.stats{background:linear-gradient(120deg,var(--navy) 0%,#1A2C4C 55%,#22375C 100%);color:#fff;padding:70px 0;position:relative;overflow:hidden}
.stats::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border:1px solid rgba(201,165,92,.25);border-radius:50%}
.stats::before{content:"";position:absolute;right:-40px;top:-40px;width:260px;height:260px;border:1px solid rgba(201,165,92,.18);border-radius:50%}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;position:relative;z-index:1}
.stat-num{font-size:46px;font-weight:700;color:var(--gold-light);font-family:"Microsoft YaHei",Arial}
.stat-num span{font-size:20px;margin-left:2px}
.stat-label{font-size:15px;color:rgba(255,255,255,.85);margin-top:6px;letter-spacing:2px}
.stat-sub{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:2px}

/* ===== 行业解决方案 ===== */
.industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.ind-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:30px 24px;text-align:center;transition:all .3s;box-shadow:var(--shadow)}
.ind-card:hover{border-color:var(--gold);transform:translateY(-6px)}
.ind-card .glyph{width:58px;height:58px;margin:0 auto 16px;border-radius:50%;border:1px solid var(--gold);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--red);font-weight:700}
.ind-card h4{font-size:17px;color:var(--navy)}
.ind-card p{font-size:13px;color:var(--gray);margin-top:8px}

/* ===== 案例/伙伴 ===== */
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-bottom:48px}
.logo-cell{height:86px;background:#fff;border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#B9BfC8;font-size:14px;letter-spacing:2px;transition:all .3s}
.logo-cell:hover{border-color:var(--gold);color:var(--navy)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .3s}
.case-card:hover{transform:translateY(-6px)}
.case-cover{height:190px;position:relative;overflow:hidden}
.case-cover.c1{background:linear-gradient(135deg,var(--navy),#2A4576)}
.case-cover.c2{background:linear-gradient(135deg,var(--red-deep),var(--red))}
.case-cover.c3{background:linear-gradient(135deg,#8A6A2F,var(--gold))}
.case-cover span{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);font-size:20px;letter-spacing:3px;font-weight:600}
.case-body{padding:26px}
.case-body h4{font-size:18px;color:var(--navy);margin-bottom:10px}
.case-body p{font-size:13.5px;color:var(--gray)}
.case-tag{display:inline-block;margin-top:14px;font-size:12px;color:var(--red);border:1px solid rgba(166,25,46,.3);padding:3px 12px;border-radius:20px}

/* ===== 专业团队 ===== */
.team-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.team-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px 18px;text-align:center;transition:all .3s;box-shadow:var(--shadow)}
.team-card:hover{transform:translateY(-6px);border-color:var(--gold)}
.team-card .glyph{width:56px;height:56px;margin:0 auto 14px;border-radius:12px;background:var(--bg-soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.team-card .glyph svg{width:28px;height:28px;stroke:var(--red)}
.team-card h4{font-size:16px;color:var(--navy)}
.team-card p{font-size:12.5px;color:var(--gray);margin-top:6px}

/* ===== 新闻 ===== */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .3s;box-shadow:var(--shadow);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);border-color:var(--gold)}
.news-cover{height:150px;display:flex;align-items:center;justify-content:center;position:relative}
.news-cover.n1{background:linear-gradient(135deg,#1E3560,#33507F)}
.news-cover.n2{background:linear-gradient(135deg,#7E1826,var(--red))}
.news-cover.n3{background:linear-gradient(135deg,#5E4A1F,#9C7B3A)}
.news-cover.n4{background:linear-gradient(135deg,#20303F,#3A5568)}
.news-cover span{color:rgba(255,255,255,.9);font-size:17px;letter-spacing:3px;font-weight:600}
.news-cover i{position:absolute;bottom:12px;right:16px;font-style:normal;font-size:11px;color:rgba(255,255,255,.6);letter-spacing:1px}
.news-body{padding:22px;flex:1;display:flex;flex-direction:column}
.news-body .cat{font-size:12px;color:var(--gold);font-weight:700;letter-spacing:2px}
.news-body h4{font-size:16px;color:var(--navy);margin:8px 0 10px;line-height:1.5}
.news-body p{font-size:13px;color:var(--gray);flex:1}
.news-body .date{font-size:12px;color:#A8AEB8;margin-top:14px;border-top:1px dashed var(--border);padding-top:12px}

/* ===== 联系我们 ===== */
.contact-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:50px}
.contact-info h3,.contact-form h3{font-size:24px;color:var(--navy);margin-bottom:18px}
.contact-info p{color:var(--gray);margin-bottom:26px}
.contact-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--border)}
.contact-list .ico{width:44px;height:44px;flex:none;border-radius:10px;background:linear-gradient(135deg,var(--red),var(--red-deep));display:flex;align-items:center;justify-content:center}
.contact-list .ico svg{width:22px;height:22px;stroke:#fff}
.contact-list b{display:block;font-size:14px;color:var(--gray);font-weight:400;margin-bottom:2px}
.contact-list span{font-size:16px;color:var(--navy);font-weight:600}
.contact-form{background:#fff;border:1px solid var(--border);border-radius:14px;padding:36px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-item{margin-bottom:16px}
.form-item label{display:block;font-size:13px;color:var(--gray);margin-bottom:6px}
.form-item input,.form-item select,.form-item textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-family:var(--font);font-size:14px;outline:none;transition:border .2s;background:#FBFCFD}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{border-color:var(--gold)}
.form-item textarea{height:96px;resize:vertical}

/* ===== 页脚 ===== */
.site-footer{background:var(--navy);color:rgba(255,255,255,.75);padding:64px 0 0;font-size:13.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .brand-mark{margin-bottom:14px}
.footer-brand .brand-logo{height:50px;margin-bottom:14px;background:#fff;border-radius:6px;padding:6px 12px}
.footer-brand p{color:rgba(255,255,255,.55);line-height:1.9}
.site-footer h4{color:#fff;font-size:16px;letter-spacing:2px;margin-bottom:18px;position:relative;padding-bottom:10px}
.site-footer h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--gold)}
.footer-links li{padding:6px 0;transition:all .2s}
.footer-links li a:hover{color:var(--gold-light);padding-left:4px}
.footer-contact li{padding:6px 0;display:flex;gap:10px}
.footer-contact svg{width:16px;height:16px;stroke:var(--gold);flex:none;margin-top:5px}
.footer-bottom{padding:20px 0;text-align:center;font-size:12.5px;color:rgba(255,255,255,.4);letter-spacing:1px;line-height:1.9}
.footer-bottom a{color:inherit;transition:color .2s}
.footer-bottom a:hover{color:var(--gold-light)}

/* ===== 子页面 ===== */
.page-hero{position:relative;height:360px;display:flex;align-items:center;background:var(--navy);overflow:hidden}
.page-hero .bg{position:absolute;inset:0;background-position:center;background-size:cover;opacity:.9}
.page-hero .mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,20,33,.88) 0%,rgba(13,20,33,.55) 50%,rgba(13,20,33,.2) 100%)}
.page-hero .inner{position:relative;z-index:2}
.crumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:14px}
.crumb a{color:rgba(255,255,255,.75)}
.crumb a:hover{color:var(--gold-light)}
.page-hero h1{font-size:40px;color:#fff;letter-spacing:3px}
.page-hero .sub{margin-top:12px;color:rgba(255,255,255,.75);font-size:16px;max-width:720px}
.service-intro{padding:80px 0}
.service-intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.service-intro h2{font-size:30px;color:var(--navy);margin-bottom:20px}
.service-intro h2 em{font-style:normal;color:var(--red)}
.service-intro p{color:var(--gray);font-size:15.5px;margin-bottom:14px}
.service-highlights{display:grid;gap:14px}
.hl-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-left:3px solid var(--gold);border-radius:10px;padding:16px 20px;box-shadow:var(--shadow)}
.hl-item b{color:var(--navy);font-size:15px;display:block}
.hl-item span{font-size:13.5px;color:var(--gray)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.svc-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:32px 26px;box-shadow:var(--shadow);transition:all .3s;position:relative;overflow:hidden}
.svc-card::after{content:"";position:absolute;bottom:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--red),var(--gold));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.svc-card:hover{transform:translateY(-6px);border-color:rgba(201,165,92,.6)}
.svc-card:hover::after{transform:scaleX(1)}
.svc-num{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:2px}
.svc-card h4{font-size:19px;color:var(--navy);margin:8px 0 12px}
.svc-card p{font-size:13.5px;color:var(--gray)}
.cta-band{background:linear-gradient(120deg,var(--navy) 0%,#22375C 100%);border-radius:16px;padding:52px 56px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;border:1px solid rgba(201,165,92,.25);border-radius:50%}
.cta-band h3{color:#fff;font-size:26px;letter-spacing:2px}
.cta-band p{color:rgba(255,255,255,.65);margin-top:8px;font-size:14.5px}

/* ===== 响应式 ===== */
@media (max-width:1280px){
  .brand-text .en{display:none}
  .nav-links>li>a{padding:0 11px;font-size:14.5px}
}
@media (max-width:1080px){
  .pillar-grid,.industry-grid,.team-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid,.case-grid,.logo-wall{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .contact-wrap,.service-intro-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:82px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 0;box-shadow:var(--shadow)}
  .nav-links.open>li>a{line-height:56px;border-bottom:1px solid var(--border);white-space:normal}
  .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border-top:none;display:none}
  .has-sub.open .sub-menu{display:block}
  .nav-toggle{display:block;background:none;border:1px solid var(--border);border-radius:8px;width:44px;height:44px;font-size:20px;color:var(--navy)}
  .hero h1{font-size:38px}
  .hero{min-height:520px}
}
@media (max-width:640px){
  .pillar-grid,.industry-grid,.team-grid,.news-grid,.case-grid,.logo-wall,.stats-grid,.svc-grid,.form-row,.footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .topbar .container{justify-content:center}
  .topbar .links{display:none}
  .section{padding:60px 0}
}