/* ========== 基础 ========== */
:root{
  --navy:#0a2a52;
  --navy-deep:#061c3a;
  --ocean:#1a5fa8;
  --ocean-light:#3d7fc4;
  --sky:#eef4fb;
  --sky2:#f7fafe;
  --ink:#1c2b3a;
  --gray:#5a6b7d;
  --line:#dce6f2;
  --white:#ffffff;
  --accent:#0f6cbd;
  --radius:6px;
  --shadow:0 2px 16px rgba(10,42,82,.08);
  --shadow-lg:0 8px 30px rgba(10,42,82,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans SC','Noto Sans JP','Noto Sans KR','Noto Sans',sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.lang-kr body{font-family:'Noto Sans KR','Noto Sans SC',sans-serif}
.lang-ja body{font-family:'Noto Sans JP','Noto Sans SC',sans-serif}

/* ========== 顶部语言条 ========== */
.topbar{background:var(--navy-deep);color:#9db8d8;font-size:12.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar span{letter-spacing:.04em}
.topbar a{color:#cfe0f5}
.lang-switch{display:flex;gap:2px}
.lang-switch button{
  background:none;border:0;color:#9db8d8;font:inherit;font-size:12.5px;
  padding:2px 8px;cursor:pointer;border-radius:3px;transition:.2s;
  font-family:'Noto Sans',sans-serif;
}
.lang-switch button:hover{color:#fff;background:rgba(255,255,255,.12)}
.lang-switch button.on{color:#fff;background:var(--ocean)}

/* ========== 导航 ========== */
header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:0 1px 0 rgba(10,42,82,.04)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:44px;width:auto}
.brand .name{font-weight:700;font-size:17px;color:var(--navy);line-height:1.3}
.brand .name small{display:block;font-weight:400;font-size:10.5px;color:var(--gray);letter-spacing:.06em}
.menu{display:flex;gap:4px}
.menu a{padding:8px 14px;font-size:15px;color:var(--ink);border-radius:4px;position:relative;transition:.2s}
.menu a:hover{color:var(--accent);background:var(--sky)}
.menu a::after{content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--accent);transform:scaleX(0);transition:.25s;transform-origin:left}
.menu a:hover::after{transform:scaleX(1)}
.menu .btn-primary{padding:9px 22px;margin-left:10px;font-size:14px}
.menu .btn-primary::after{display:none}
/* 移动端汉堡按钮：桌面隐藏 */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:38px;padding:0 11px;border:1px solid var(--line);border-radius:4px;background:#fff;cursor:pointer}
.nav-toggle span{display:block;height:2px;background:var(--navy);border-radius:2px;transition:.22s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ========== Hero ========== */
.hero{position:relative;color:#fff;background:var(--navy-deep);overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/img/hero-bg.jpg') center/cover no-repeat;opacity:.5}
.hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,28,58,.92) 0%,rgba(10,42,82,.72) 45%,rgba(10,42,82,.35) 100%)}
.hero .wrap{position:relative;padding:110px 24px 120px}
.hero .kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.25em;color:#8fc2ee;text-transform:uppercase;margin-bottom:22px;font-family:'Noto Sans',sans-serif}
.hero .kicker::before{content:'';width:36px;height:1px;background:#8fc2ee}
.hero h1{font-size:44px;font-weight:700;line-height:1.28;max-width:760px;letter-spacing:.01em}
.hero h1 em{font-style:normal;color:#7fc0ff}
.hero .sub{margin-top:20px;font-size:17px;color:#c3d9f0;max-width:620px;font-weight:400}
.hero .ctas{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:4px;font-size:15px;font-weight:500;letter-spacing:.03em;transition:.22s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--ocean);box-shadow:0 6px 20px rgba(15,108,189,.4);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}

/* ========== 数据带 ========== */
/* 收进内容宽度做成圆角卡片：淡蓝底色不再通栏，避免上下白底区块之间夹一条孤立色带 */
.stats{max-width:1080px;margin:0 auto;padding:0 24px}
.hero + .stats{margin-top:40px}
.stats .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  max-width:none;margin:0;padding:0;
  background:var(--line);border:1px solid var(--line);border-radius:8px;
  overflow:hidden;box-shadow:var(--shadow);
}
.stat{background:var(--sky);padding:28px 10px;text-align:center}
.stat .num{font-size:34px;font-weight:700;color:var(--navy);font-family:'Noto Sans',sans-serif;line-height:1.1}
.stat .num small{font-size:16px;font-weight:500;color:var(--ocean);margin-left:4px}
.stat .lbl{margin-top:6px;font-size:13px;color:var(--gray)}

/* ========== 通用 Section ========== */
section{padding:84px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 54px}
.sec-head .en{font-size:12px;letter-spacing:.3em;color:var(--ocean-light);text-transform:uppercase;font-family:'Noto Sans',sans-serif;display:block;margin-bottom:10px}
.sec-head h2{font-size:30px;font-weight:700;color:var(--navy)}
.sec-head p{margin-top:14px;color:var(--gray);font-size:15px}
.sec-alt{background:var(--sky2)}

/* ========== 关于 ========== */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.about-text p{color:var(--gray);font-size:15.5px;margin-bottom:14px;text-align:justify}
.about-text p strong{color:var(--ink)}
.about-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.fact{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.fact .f-num{font-size:26px;font-weight:700;color:var(--navy);font-family:'Noto Sans',sans-serif}
.fact .f-num small{font-size:14px;font-weight:500;color:var(--ocean-light);margin-left:3px}
.fact .f-lbl{font-size:12.5px;color:var(--gray);margin-top:2px}
.about-pic{position:relative}
.about-pic img{border-radius:var(--radius);box-shadow:var(--shadow-lg)}
.about-pic .tag{position:absolute;left:-14px;bottom:22px;background:var(--navy);color:#fff;padding:12px 22px;border-radius:4px;box-shadow:var(--shadow-lg)}
.about-pic .tag b{font-size:17px;display:block}
.about-pic .tag span{font-size:12px;color:#a9c6e6;letter-spacing:.14em;font-family:'Noto Sans',sans-serif}

/* ========== 业务领域 ========== */
.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.field{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:.25s;position:relative;overflow:hidden}
.field:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--ocean-light)}
.field .ico{width:52px;height:52px;border-radius:6px;background:var(--sky);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.field .ico svg{width:28px;height:28px;stroke:var(--ocean)}
.field h3{font-size:19px;color:var(--navy);margin-bottom:8px}
.field .fen{font-size:11px;letter-spacing:.16em;color:var(--ocean-light);text-transform:uppercase;font-family:'Noto Sans',sans-serif;display:block;margin-bottom:10px}
.field p{font-size:14px;color:var(--gray)}

/* ========== 品牌 ========== */
.brands{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.bcard{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.bcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--ocean-light)}
.bcard .pic{height:180px;display:flex;align-items:center;justify-content:center;padding:20px 26px;background:linear-gradient(160deg,#ffffff 55%,#f2f7fc 100%)}
.bcard .pic img{max-height:140px;max-width:100%;width:auto;object-fit:contain}
.bcard .body{padding:20px 24px 24px;border-top:1px solid var(--line);flex:1;display:flex;flex-direction:column}
.bcard .cat{font-size:11px;letter-spacing:.16em;color:var(--ocean-light);text-transform:uppercase;font-family:'Noto Sans',sans-serif}
.bcard h3{font-size:17px;color:var(--navy);margin:5px 0 7px}
.bcard p{font-size:13px;color:var(--gray);flex:1}
.bcard .items{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.bcard .items span{font-size:12px;color:var(--ocean);background:var(--sky);padding:3px 10px;border-radius:99px}

/* ========== 代理品牌横条 ========== */
.brandline{padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.brandline .wrap{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.brandline .bl{font-size:13px;color:var(--gray);letter-spacing:.08em}
.brandline .bls{display:flex;gap:34px;font-size:16px;font-weight:700;color:var(--navy);opacity:.82;flex-wrap:wrap}
.brandline .bls span{font-family:'Noto Sans',sans-serif;letter-spacing:.02em}

/* ========== 行业 ========== */
.inds{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ind{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center;transition:.25s}
.ind:hover{border-color:var(--ocean-light);box-shadow:var(--shadow);transform:translateY(-3px)}
.ind .ico{width:46px;height:46px;margin:0 auto 12px;border-radius:6px;background:var(--sky);display:flex;align-items:center;justify-content:center}
.ind .ico svg{width:24px;height:24px;stroke:var(--ocean)}
.ind h3{font-size:15.5px;color:var(--navy)}
.ind p{font-size:12.5px;color:var(--gray);margin-top:4px}

/* ========== 优势 ========== */
.advs{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s;position:relative}
.adv:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.adv .n{font-size:40px;font-weight:700;color:var(--sky);font-family:'Noto Sans',sans-serif;line-height:1;position:absolute;top:18px;right:22px}
.adv h3{font-size:17px;color:var(--navy);margin-bottom:8px;padding-right:50px}
.adv p{font-size:13.5px;color:var(--gray)}

/* ========== 联系 ========== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h3{font-size:20px;color:var(--navy);margin-bottom:16px}
.contact-info p{color:var(--gray);font-size:14.5px;margin-bottom:22px}
.clist{display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.crow{display:flex;padding:16px 22px;background:var(--white);border-bottom:1px solid var(--line);gap:16px;align-items:flex-start}
.crow:last-child{border-bottom:0}
.crow .k{width:90px;flex:none;font-size:13px;color:var(--ocean);font-weight:500;padding-top:2px}
.crow .v{font-size:14.5px;color:var(--ink);font-family:'Noto Sans',sans-serif}
.contact-form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.contact-form h3{font-size:20px;color:var(--navy);margin-bottom:20px}
.frow{margin-bottom:16px}
.frow label{display:block;font-size:13px;color:var(--gray);margin-bottom:6px;font-weight:500}
.frow input,.frow textarea,.frow select{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:4px;font:inherit;font-size:14px;
  color:var(--ink);background:var(--sky2);transition:.2s;
}
.frow input:focus,.frow textarea:focus,.frow select:focus{outline:0;border-color:var(--ocean);background:#fff;box-shadow:0 0 0 3px rgba(26,95,168,.12)}
.frow textarea{resize:vertical;min-height:110px}
.form-btn{width:100%;justify-content:center;margin-top:6px}
.form-note{margin-top:12px;font-size:12px;color:var(--gray);text-align:center}

/* ========== 页脚 ========== */
footer{background:var(--navy-deep);color:#8ba6c8;padding:56px 0 0}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px}
.f-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.f-brand img{height:40px}
.f-brand span{color:#fff;font-weight:700;font-size:16px}
footer p{font-size:13px;line-height:1.8}
footer h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.05em}
.f-links a{display:block;font-size:13px;padding:4px 0;color:#8ba6c8;transition:.2s}
.f-links a:hover{color:#fff}
.f-links span{display:block;font-size:13px;padding:4px 0;color:#8ba6c8;line-height:1.7}
.f-copy{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:12px;color:#5f7a9d}
.f-copy a{color:inherit;text-decoration:none;padding:0 4px}
.f-copy a:hover{color:#fff}
.f-copy .langs{display:inline-flex;gap:14px;margin-left:16px}
/* 公安备案：警徽图标与文字基线对齐，图标不参与文字下划线 */
.f-copy .beian-police{display:inline-flex;align-items:center;gap:5px;vertical-align:middle}
/* 官方图标是 20×20，但页脚字号只有 12px，按原尺寸会显得偏大、挤占竖排空间；
   缩到 18px 既保留警徽辨识度，又和 12px 文字协调。 */
.f-copy .beian-police img{display:block;width:18px;height:18px;flex:none}
.f-copy .langs button{background:none;border:0;color:#5f7a9d;font:inherit;font-size:12px;cursor:pointer}
.f-copy .langs button:hover,.f-copy .langs button.on{color:#fff}

/* ========== 响应式 ========== */
@media(max-width:960px){
  .hero h1{font-size:33px}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:34px}
  .brands{grid-template-columns:repeat(2,1fr)}
  .inds{grid-template-columns:repeat(2,1fr)}
  .advs{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
  .fields{grid-template-columns:1fr}
  .nav-toggle{display:flex}
  /* 折叠为下拉抽屉，仍可到达所有栏目 */
  .menu{display:none;position:absolute;left:0;right:0;top:72px;flex-direction:column;gap:0;
    background:var(--white);border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);padding:6px 16px 16px}
  .menu.open{display:flex}
  .menu a{padding:13px 8px;border-bottom:1px solid var(--line)}
  .menu a::after{display:none}
  .menu a:last-child{border-bottom:0}
  .menu .btn-primary{margin:12px 0 0;padding:12px 22px;justify-content:center}
}
@media(max-width:640px){
  .hero .wrap{padding:80px 24px 90px}
  .hero h1{font-size:27px}
  .brand img{height:38px}
  .brand .name{font-size:15px}
  .brands,.inds,.advs,.about-facts{grid-template-columns:1fr}
  .brandline .bls{gap:16px;font-size:14px}
  .f-grid{grid-template-columns:1fr}
  .topbar .wrap>span{display:none}
}