/* ============================================================
   宥远信息官网 共享样式（风格定稿：001 深蓝科技）
   源于 sketches/001-deep-blue-tech，扩展子页组件
   ============================================================ */
:root{
  --bg-dark:#0B1F3A; --bg-dark2:#122a4d; --bg-light:#F5F7FA; --white:#fff;
  --accent:#00A0E9; --accent-strong:#2E9BF0; --orange:#F5A623;
  --text-dark:#1a2433; --text-gray:#5a6a7f; --text-on-dark:#d6e2f2;
  --card-border:#e3eaf3; --radius:8px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
     color:var(--text-dark);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ===== 导航 ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(11,31,58,.92);backdrop-filter:blur(10px);
     border-bottom:1px solid rgba(255,255,255,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px;border-radius:8px;flex:none;
  background:radial-gradient(circle at 30% 25%,#35b6f5,#0d6fb1 70%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(0,160,233,.35)}
.brand-mark img{width:30px;height:30px}
.brand-name{color:#fff;font-size:17px;font-weight:600;letter-spacing:1px}
.brand-name small{display:block;font-size:9px;color:#7f95b3;letter-spacing:2.5px;font-weight:400}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{color:var(--text-on-dark);font-size:14.5px;transition:color .2s;position:relative;padding:6px 0}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);border-radius:2px}
.btn{display:inline-block;border-radius:6px;font-size:14.5px;cursor:pointer;transition:all .2s;border:none}
.btn-cta{background:linear-gradient(135deg,#00A0E9,#2E9BF0);color:#fff;padding:9px 20px;
  box-shadow:0 4px 14px rgba(0,160,233,.35)}
.btn-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,160,233,.5)}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer}

/* ===== 首页 Hero ===== */
.hero{background:radial-gradient(1200px 600px at 75% -10%,#1a3c6e 0%,var(--bg-dark) 55%),
      linear-gradient(180deg,#0d2648 0%,var(--bg-dark) 100%);
      color:#fff;padding:96px 0 110px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;border-radius:50%;
      background:radial-gradient(circle,rgba(0,160,233,.22),transparent 65%)}
.hero::after{content:"";position:absolute;left:-100px;bottom:-180px;width:420px;height:420px;border-radius:50%;
      background:radial-gradient(circle,rgba(245,166,35,.10),transparent 65%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(0,160,233,.12);
  border:1px solid rgba(0,160,233,.35);color:#6fc6f5;font-size:13px;padding:6px 14px;border-radius:999px;margin-bottom:22px}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 8px var(--orange)}
.hero h1{font-size:44px;font-weight:700;line-height:1.28;letter-spacing:.5px;margin-bottom:20px}
.hero h1 .hl{background:linear-gradient(90deg,#4dc3f7,#8fd8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:17px;color:var(--text-on-dark);max-width:520px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px}
.btn-hero{background:linear-gradient(135deg,#00A0E9,#2E9BF0);color:#fff;padding:13px 30px;font-size:15.5px;
  border-radius:6px;box-shadow:0 6px 22px rgba(0,160,233,.4);display:inline-block;transition:all .2s}
.btn-hero:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,160,233,.55)}
.btn-ghost{background:transparent;color:#dce9f8;border:1px solid rgba(255,255,255,.25);padding:13px 30px;
  font-size:15.5px;border-radius:6px;display:inline-block;transition:all .2s}
.btn-ghost:hover{border-color:var(--accent);color:#fff;background:rgba(0,160,233,.08)}

/* Hero 侧边卡片 */
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:12px;
  padding:26px;backdrop-filter:blur(8px)}
.hero-card h3{font-size:15px;color:#9fc3e8;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--orange)}
.stack-row{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;font-size:13.5px;color:#e4eefb;
  margin-bottom:8px;background:rgba(255,255,255,.05);transition:background .2s;cursor:default}
.stack-row:hover{background:rgba(0,160,233,.16)}
.stack-row .tag{margin-left:auto;font-size:11px;color:#6fc6f5;background:rgba(0,160,233,.12);
  padding:2px 8px;border-radius:4px;border:1px solid rgba(0,160,233,.3)}

/* ===== 子页页头 ===== */
.page-hero{background:radial-gradient(900px 400px at 80% -20%,#1a3c6e 0%,var(--bg-dark) 60%);
  color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,160,233,.18),transparent 65%)}
.page-hero .inner{position:relative;z-index:1}
.page-hero h1{font-size:36px;font-weight:700;letter-spacing:.5px;margin-bottom:14px}
.page-hero p{color:var(--text-on-dark);font-size:16px;max-width:640px}
.crumb{font-size:13px;color:#7f95b3;margin-bottom:18px}
.crumb a:hover{color:#fff}

/* ===== 通用 section ===== */
section{padding:84px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 52px}
.sec-eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--accent);font-weight:600;
  text-transform:uppercase;margin-bottom:12px}
.sec-head h2{font-size:32px;font-weight:700;letter-spacing:.5px;margin-bottom:14px}
.sec-head p{color:var(--text-gray);font-size:16px}
.sec-head.left{text-align:left;margin:0 0 40px}

/* ===== 业务卡片 ===== */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.biz-card{background:#fff;border:1px solid var(--card-border);border-radius:var(--radius);padding:28px 24px;
  transition:all .25s;position:relative;overflow:hidden;display:block}
.biz-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,#00A0E9,#2E9BF0);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.biz-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(11,31,58,.12);border-color:#cfe3f5}
.biz-card:hover::before{transform:scaleX(1)}
.biz-icon{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:18px;background:rgba(0,160,233,.1)}
.biz-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.biz-card p{font-size:13.8px;color:var(--text-gray);line-height:1.75}
.biz-card .more{display:inline-block;margin-top:14px;font-size:13px;color:var(--accent);font-weight:600}
.biz-card .more:hover{text-decoration:underline}

/* ===== 数据带 ===== */
.stats{background:linear-gradient(135deg,#0d2648,#0B1F3A);color:#fff;padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-num{font-size:40px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.stat-num .unit{font-size:18px;color:var(--orange);margin-left:2px}
.stat-label{font-size:14px;color:var(--text-on-dark);margin-top:6px}

/* ===== 案例 ===== */
.cases{background:var(--bg-light)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--card-border);
  transition:all .25s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-6px);box-shadow:0 16px 38px rgba(11,31,58,.13)}
.case-cover{height:150px;position:relative;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:26px;font-weight:700;letter-spacing:2px}
.cover-a{background:linear-gradient(135deg,#123a6b,#0B1F3A)}
.cover-b{background:linear-gradient(135deg,#0e6da3,#00A0E9)}
.cover-c{background:linear-gradient(135deg,#b97a10,#F5A623)}
.cover-d{background:linear-gradient(135deg,#0f4f5e,#128d94)}
.cover-e{background:linear-gradient(135deg,#2f3a56,#5b6b8f)}
.cover-f{background:linear-gradient(135deg,#5e2f56,#94588a)}
.case-cover .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(4px);font-size:11.5px;padding:3px 10px;border-radius:999px}
.case-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.case-body h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.case-body p{font-size:13.5px;color:var(--text-gray);line-height:1.75;flex:1}
.case-tags{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.case-tags span{font-size:11.5px;color:#3f7fb5;background:#edf5fc;border:1px solid #d7e9f7;padding:2px 9px;border-radius:4px}

/* 案例筛选 chips */
.filter-bar{display:flex;gap:10px;justify-content:center;margin-bottom:40px;flex-wrap:wrap}
.chip{background:#fff;border:1px solid var(--card-border);color:var(--text-gray);font-size:13.5px;
  padding:7px 18px;border-radius:999px;cursor:pointer;transition:all .2s}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.on{background:linear-gradient(135deg,#00A0E9,#2E9BF0);border-color:transparent;color:#fff;
  box-shadow:0 4px 12px rgba(0,160,233,.3)}
.case-card.hide{display:none}

/* ===== 资质 ===== */
.qual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.qual-card{background:#fff;border:1px dashed #c4d4e8;border-radius:var(--radius);padding:26px 24px;
  display:flex;gap:16px;align-items:flex-start;transition:all .25s}
.qual-card:hover{border-style:solid;border-color:var(--accent);box-shadow:0 10px 26px rgba(11,31,58,.08)}
.qual-icon{width:42px;height:42px;flex:none;border-radius:10px;background:rgba(0,160,233,.1);
  display:flex;align-items:center;justify-content:center;font-size:19px}
.qual-card h3{font-size:15.5px;font-weight:600;margin-bottom:6px}
.qual-card p{font-size:13px;color:var(--text-gray);line-height:1.7}

/* ===== 解决方案页 ===== */
.sol-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:64px 0;
  border-bottom:1px solid var(--card-border)}
.sol-block:last-of-type{border-bottom:none}
.sol-block.flip .sol-visual{order:-1}
.sol-text .no{font-size:13px;letter-spacing:2.5px;color:var(--accent);font-weight:700;margin-bottom:12px;display:block}
.sol-text h2{font-size:28px;font-weight:700;margin-bottom:16px}
.sol-text .lead{font-size:15.5px;color:var(--text-gray);line-height:1.85;margin-bottom:20px}
.sol-points{list-style:none;margin-bottom:24px}
.sol-points li{position:relative;padding:7px 0 7px 26px;font-size:14.5px;color:var(--text-dark)}
.sol-points li::before{content:"✓";position:absolute;left:0;top:7px;width:17px;height:17px;border-radius:50%;
  background:rgba(0,160,233,.12);color:var(--accent);font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:700}
.sol-visual{background:linear-gradient(160deg,#f2f7fd,#e8f1fb);border:1px solid #d7e5f5;border-radius:14px;
  padding:30px;min-height:300px}
.sol-visual .fake{background:#fff;border:1px solid var(--card-border);border-radius:10px;padding:18px;margin-bottom:12px;
  box-shadow:0 8px 20px rgba(11,31,58,.06)}
.sol-visual .fake b{display:block;font-size:13.5px;margin-bottom:4px;color:var(--text-dark)}
.sol-visual .fake span{font-size:12px;color:var(--text-gray)}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{background:#fff;border:1px solid var(--card-border);border-radius:var(--radius);padding:26px 22px;
  position:relative;counter-increment:step}
.step::before{content:"0" counter(step);font-size:30px;font-weight:700;color:#e1ecf8;position:absolute;
  top:14px;right:16px;line-height:1}
.step h3{font-size:15.5px;font-weight:600;margin-bottom:8px;padding-top:8px}
.step p{font-size:13px;color:var(--text-gray);line-height:1.7}

/* ===== 关于页 ===== */
.about-lead{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center}
.about-lead .big{font-size:17.5px;line-height:1.9;color:var(--text-dark)}
.about-lead .big b{color:var(--accent)}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value-card{background:var(--bg-light);border-radius:var(--radius);padding:30px 26px;transition:all .25s}
.value-card:hover{background:#fff;box-shadow:0 12px 30px rgba(11,31,58,.1)}
.value-card h3{font-size:16.5px;font-weight:600;margin:14px 0 10px}
.value-card p{font-size:13.5px;color:var(--text-gray);line-height:1.75}
.value-num{font-size:15px;font-weight:700;color:var(--accent);letter-spacing:1px}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--accent),#7fd0f7);border-radius:2px}
.tl-item{position:relative;padding:0 0 26px 14px}
.tl-item::before{content:"";position:absolute;left:-28px;top:5px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--accent);box-shadow:0 0 0 4px rgba(0,160,233,.15)}
.tl-item .yr{font-size:13px;color:var(--accent);font-weight:700;letter-spacing:1px}
.tl-item h3{font-size:15.5px;font-weight:600;margin:4px 0}
.tl-item p{font-size:13.5px;color:var(--text-gray);line-height:1.7}

/* 团队（按角色展示，不露个人信息） */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.team-card{background:#fff;border:1px solid var(--card-border);border-radius:var(--radius);padding:28px 22px;
  text-align:center;transition:all .25s}
.team-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(11,31,58,.1)}
.team-avatar{width:64px;height:64px;margin:0 auto 14px;border-radius:50%;
  background:linear-gradient(135deg,#0d2648,#0B1F3A);display:flex;align-items:center;justify-content:center;
  color:#7fc9f2;font-size:24px;font-weight:700}
.team-card h3{font-size:15.5px;font-weight:600;margin-bottom:4px}
.team-card .role{font-size:12.5px;color:var(--accent);font-weight:600;margin-bottom:10px}
.team-card p{font-size:12.8px;color:var(--text-gray);line-height:1.7}

/* ===== CTA band ===== */
.cta-band{background:radial-gradient(900px 300px at 50% -60%,rgba(0,160,233,.35),transparent 70%),var(--bg-dark);
  color:#fff;text-align:center;padding:76px 0}
.cta-band h2{font-size:30px;font-weight:700;margin-bottom:14px}
.cta-band p{color:var(--text-on-dark);margin-bottom:30px;font-size:16px}

/* ===== 联系页表单 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start}
.info-card{background:var(--bg-light);border-radius:var(--radius);padding:26px;margin-bottom:18px}
.info-card h3{font-size:15.5px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.info-row{display:flex;gap:12px;padding:8px 0;font-size:14px;color:var(--text-gray)}
.info-row b{color:var(--text-dark);font-weight:600;min-width:64px}
.form-card{background:#fff;border:1px solid var(--card-border);border-radius:14px;padding:34px;
  box-shadow:0 16px 40px rgba(11,31,58,.08)}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.form-card .sub{font-size:13.5px;color:var(--text-gray);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--text-dark)}
.field label .req{color:#e05252;margin-left:2px}
.field input,.field select,.field textarea{width:100%;border:1px solid #d5dfec;border-radius:8px;
  padding:11px 14px;font-size:14px;font-family:inherit;color:var(--text-dark);background:#fbfdff;
  transition:border .2s, box-shadow .2s;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(0,160,233,.12);background:#fff}
.field textarea{min-height:120px;resize:vertical}
.field .hint{font-size:12px;color:#93a3b8;margin-top:5px}
.btn-submit{width:100%;background:linear-gradient(135deg,#00A0E9,#2E9BF0);color:#fff;border:none;
  padding:14px;font-size:15.5px;border-radius:8px;cursor:pointer;font-family:inherit;font-weight:600;
  box-shadow:0 6px 20px rgba(0,160,233,.35);transition:all .2s}
.btn-submit:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,160,233,.5)}
.privacy-note{font-size:12px;color:#93a3b8;text-align:center;margin-top:12px}

/* ===== 页脚 ===== */
footer{background:#081627;color:#7f95b3;padding:52px 0 26px;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:36px}
.foot-grid h4{color:#dce9f8;font-size:14.5px;margin-bottom:14px;font-weight:600}
.foot-grid a{display:block;margin-bottom:9px;transition:color .2s}
.foot-grid a:hover{color:#fff}
.foot-about p{line-height:1.8;margin-top:12px;max-width:340px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px}

/* ===== toast ===== */
.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(80px);
  background:#0B1F3A;color:#fff;padding:13px 26px;border-radius:8px;font-size:14.5px;
  box-shadow:0 12px 32px rgba(0,0,0,.35);opacity:0;transition:all .35s;z-index:999;border:1px solid rgba(0,160,233,.5)}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ===== 响应式 ===== */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .hero h1{font-size:33px}
  .biz-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid,.qual-grid{grid-template-columns:1fr}
  .team-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .foot-grid{grid-template-columns:1fr}
  .contact-grid,.about-lead,.sol-block{grid-template-columns:1fr}
  .sol-block.flip .sol-visual{order:0}
  .value-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .page-hero h1{font-size:28px}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#0d2648;
    flex-direction:column;align-items:stretch;padding:12px 24px 20px;gap:4px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 4px}
  .nav-links a.active::after{display:none}
  .menu-toggle{display:block}
}