/* 智连诺 — 对照 trajectorywebdesign.com 版式 */
:root{
  --navy-900:#0f1538;
  --navy-800:#151c4d;
  --navy-700:#1e2763;
  --blue:#2f5bff;
  --blue-light:#8fb0ff;
  --blue-soft:#e8efff;
  --ink:#131a45;
  --muted:#5b6584;
  --tint:#f4f7fd;
  --line:#e3e8f5;
  --white:#ffffff;
  --radius:16px;
  --wrap:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{text-decoration:none;color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.center{text-align:center}
section{scroll-margin-top:70px}

/* ---------- 通用 ---------- */
.eyebrow{font-size:13px;font-weight:800;letter-spacing:4px;color:var(--blue);margin-bottom:16px}
.eyebrow-light{color:var(--blue-light)}
.sec-title{font-size:clamp(28px,4vw,44px);font-weight:800;letter-spacing:-.5px;margin-bottom:16px}
.sec-title-light{color:#fff}
.sec-sub{color:var(--muted);font-size:17px;max-width:720px;margin-bottom:0}
.sec-sub-center{margin-left:auto;margin-right:auto}
.section{padding:110px 0}
.section-tint{background:var(--tint)}
.section-dark{background:var(--navy-900);color:#fff}
.section-dark .sec-sub{color:#b9c2e8}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:10px;font-size:16px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s;cursor:pointer;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn .chev{font-size:20px;line-height:1}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#1f49e8;box-shadow:0 12px 28px rgba(47,91,255,.35)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-outline{border-color:rgba(255,255,255,.5);color:#fff;padding:11px 24px;font-size:15px}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-outline-dark{border-color:#c6cfe8;color:var(--ink);background:#fff}
.btn-outline-dark:hover{border-color:var(--blue);color:var(--blue)}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{box-shadow:0 12px 28px rgba(0,0,0,.3)}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,box-shadow .3s}
.nav.scrolled{background:rgba(15,21,56,.94);backdrop-filter:blur(12px);box-shadow:0 2px 20px rgba(0,0,0,.25)}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:10px;color:#fff}
.logo-mark{font-size:26px;color:var(--blue-light)}
.logo-text{font-size:21px;font-weight:800;letter-spacing:3px;line-height:1.1}
.logo-text small{display:block;font-size:10px;letter-spacing:4px;color:var(--blue-light);font-weight:600}
.nav-links{display:flex;gap:34px}
.nav-links a{color:#dbe2ff;font-size:15px;font-weight:600;transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse 90% 70% at 50% 110%,#24308a 0%,var(--navy-900) 60%);overflow:hidden;color:#fff}
#stars{position:absolute;inset:0;width:100%;height:100%}
.orbits{position:absolute;inset:0;width:100%;height:100%}
.orbits ellipse{fill:none;stroke:rgba(140,160,255,.16);stroke-width:1.2}
.hero-inner{position:relative;z-index:2;text-align:center;padding:140px 24px 100px;max-width:900px}
.hero h1{font-size:clamp(46px,8vw,84px);font-weight:800;line-height:1.25;letter-spacing:-1px;margin-bottom:22px}
.hero h1 .hl{color:var(--blue-light)}
.hero-sub{font-size:19px;color:#c3cbf2;max-width:640px;margin:0 auto 40px}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- 案例（原站：标题行 + 大图） ---------- */
.section-work{padding:110px 0;background:#fff}
.work-item{margin-bottom:90px}
.work-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:20px}
.work-head h3{font-size:22px;font-weight:800}
.work-link{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:2px;white-space:nowrap}
.work-link span{font-size:16px}
.work-link:hover{text-decoration:underline}
.work-duo{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.work-duo .work-item{margin-bottom:90px}
.mockup{border-radius:14px;overflow:hidden;box-shadow:0 24px 60px rgba(19,26,69,.14);background:var(--navy-800)}
.mockup-bar{display:flex;align-items:center;gap:7px;padding:13px 18px;background:#232b66}
.mockup-bar i{width:11px;height:11px;border-radius:50%;background:#4a56a0}
.mockup-url{flex:1;max-width:300px;margin:0 auto;height:20px;border-radius:6px;background:#151b4d}
.mockup-body{height:400px;position:relative;overflow:hidden;background:#0e1330}
.mockup-body img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}
.work-duo .mockup-body{height:300px}

/* ---------- 服务卡片（原站：图标+标题+描述+分隔线+子项） ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:60px}
.svc-card{background:#fff;border-radius:var(--radius);padding:40px 36px;box-shadow:0 6px 24px rgba(19,26,69,.06);border:1px solid #edf1fa;transition:transform .25s,box-shadow .25s;text-align:left}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(19,26,69,.12)}
.svc-icon{width:58px;height:58px;border-radius:14px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.svc-icon svg{width:30px;height:30px}
.svc-card h3{font-size:20px;font-weight:800;margin-bottom:10px}
.svc-card p{color:var(--muted);font-size:15px;margin-bottom:0}
.svc-card hr{border:none;border-top:1px solid var(--line);margin:22px 0}
.svc-card ul{list-style:none}
.svc-card li{font-size:15px;color:var(--ink);padding:5px 0 5px 22px;position:relative}
.svc-card li::before{content:"–";position:absolute;left:0;color:var(--blue);font-weight:800}

/* ---------- 编号分行（原站 why / process 样式） ---------- */
.why-list{margin-top:50px}
.why-row{display:grid;grid-template-columns:130px 1fr 1.15fr;gap:32px;align-items:start;padding:46px 0;border-top:1px solid var(--line)}
.why-list .why-row:last-child{border-bottom:1px solid var(--line)}
.why-num{font-size:46px;font-weight:800;color:#9db4f0;line-height:1.1}
.why-row h3{font-size:24px;font-weight:800}
.why-row p{color:var(--muted);font-size:16px}

/* ---------- 行业列表 ---------- */
.ind-list{margin-top:50px;display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.ind-list a{display:flex;align-items:baseline;gap:14px;padding:20px 4px;border-bottom:1px solid var(--line);transition:padding-left .2s}
.ind-list a:hover{padding-left:10px}
.ind-list a span:first-child{font-size:17px;font-weight:700;white-space:nowrap}
.ind-note{font-size:13px;color:var(--muted);font-style:normal;flex:1}
.ind-list em{color:var(--blue);font-style:normal;font-size:18px;font-weight:800}

/* ---------- 技术标准 ---------- */
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:56px;max-width:960px}
.tech-item{display:flex;gap:18px;background:rgba(255,255,255,.05);border:1px solid rgba(140,160,255,.18);border-radius:14px;padding:26px 28px}
.tech-item h3{font-size:18px;font-weight:800;margin-bottom:6px}
.tech-item p{color:#b9c2e8;font-size:14px}
.tick{flex:none;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800}

/* ---------- 数据（原站：白色 + 蓝色星球光晕） ---------- */
.stats{position:relative;background:#fff;padding:130px 0;overflow:hidden;text-align:center}
.planet{position:absolute;top:-220px;left:50%;transform:translateX(-50%);width:620px;height:620px;border-radius:50%;background:radial-gradient(circle at 50% 40%,#7d9bff 0%,#2f5bff 38%,rgba(47,91,255,0) 68%);opacity:.55;filter:blur(6px);pointer-events:none}
.stats-row{position:relative;display:flex;justify-content:center;gap:110px;flex-wrap:wrap}
.stat-num{display:block;font-size:64px;font-weight:800;color:var(--blue);line-height:1.1}
.stat-num i{font-style:normal;font-size:30px;margin-left:4px}
.stat-label{font-size:16px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta{position:relative;background:radial-gradient(ellipse 80% 90% at 50% 130%,#24308a 0%,var(--navy-900) 65%);color:#fff;padding:130px 0;overflow:hidden}
.cta h2{font-size:clamp(30px,4.5vw,48px);font-weight:800;margin-bottom:18px;position:relative}
.cta p{color:#c3cbf2;font-size:18px;max-width:620px;margin:0 auto 40px;position:relative}

/* ---------- 页脚 ---------- */
.footer{background:#0a0f2e;color:#aeb8e8;padding:80px 0 0}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1.4fr;gap:48px;padding-bottom:56px}
.foot-brand p{margin-top:20px;font-size:14px;line-height:2}
.foot-col h4{color:#fff;font-size:14px;letter-spacing:3px;margin-bottom:22px}
.foot-col a{display:block;font-size:15px;padding:7px 0;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-2col{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.foot-bar{border-top:1px solid rgba(140,160,255,.15);padding:24px 0;display:flex;justify-content:space-between;font-size:13px;color:#7c88c4}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .svc-grid{grid-template-columns:1fr 1fr}
  .why-row{grid-template-columns:80px 1fr;grid-template-areas:"num title" "num desc"}
  .why-num{grid-area:num;font-size:36px}
  .why-row h3{grid-area:title}
  .why-row p{grid-area:desc}
  .ind-list{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-col-wide{grid-column:1/-1}
}
@media(max-width:640px){
  .nav-links{position:fixed;top:0;right:-260px;width:240px;height:100vh;background:var(--navy-900);flex-direction:column;padding:100px 32px;gap:24px;transition:right .3s}
  .nav-links.open{right:0}
  .nav-toggle{display:flex}
  .nav-cta .btn{display:none}
  .section{padding:80px 0}
  .section-work{padding:80px 0}
  .work-duo{grid-template-columns:1fr}
  .work-item,.work-duo .work-item{margin-bottom:60px}
  .mockup-body{height:260px}
  .work-head h3{font-size:18px}
  .svc-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:1fr}
  .stats-row{gap:48px}
  .foot-grid{grid-template-columns:1fr}
}