/* ===== 规划科技官网 全局样式 ===== */
:root{
  --primary:#1a56db;
  --primary-dark:#0a2540;
  --primary-light:#e8f0ff;
  --accent:#00c2ff;
  --bg:#ffffff;
  --bg-soft:#f4f7fb;
  --bg-dark:#0a2540;
  --text:#1f2d3d;
  --muted:#6b7a90;
  --border:#e3e9f2;
  --radius:14px;
  --shadow:0 10px 30px rgba(26,86,219,.08);
  --shadow-lg:0 20px 50px rgba(10,37,64,.18);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:50px;font-size:15px;font-weight:600;
  transition:.25s;cursor:pointer;border:2px solid transparent;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#1548b8;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.section{padding:90px 0}
.section-soft{background:var(--bg-soft)}
.section-title{text-align:center;margin-bottom:54px}
.section-title .eyebrow{color:var(--primary);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase}
.section-title h2{font-size:34px;margin:10px 0 14px;font-weight:800;letter-spacing:-.5px}
.section-title p{color:var(--muted);max-width:640px;margin:0 auto;font-size:16px}

/* ===== 导航 ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--primary-dark)}
.logo .mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:15px;font-weight:500;color:var(--text);position:relative;transition:.2s}
.nav-links a:hover{color:var(--primary)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--primary);transition:.25s}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--text);transition:.3s}

/* ===== Hero ===== */
.hero{position:relative;background:linear-gradient(135deg,#0a2540 0%,#123a6b 55%,#1a56db 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:48px 48px;opacity:.5}
.hero-inner{position:relative;padding:120px 0 110px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:-1px}
.hero h1 .hl{background:linear-gradient(90deg,var(--accent),#7ee8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:rgba(255,255,255,.82);margin:22px 0 34px;max-width:520px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:46px}
.hero-stats .num{font-size:30px;font-weight:800;color:#fff}
.hero-stats .lbl{font-size:13px;color:rgba(255,255,255,.7)}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:30px;backdrop-filter:blur(8px)}
.hero-card h3{font-size:18px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.hero-card ul{list-style:none;display:grid;gap:14px}
.hero-card li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.88)}
.hero-card li .ic{flex:0 0 22px;height:22px;border-radius:50%;background:var(--accent);color:#06283d;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;margin-top:2px}

/* ===== 特性卡片 ===== */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:.25s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.card .ic-big{width:56px;height:56px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}

/* ===== 流程 / 步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{position:relative;padding-top:18px}
.step .n{counter-increment:s;width:46px;height:46px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin-bottom:16px}
.step .n::before{content:"0" counter(s)}
.step h4{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* ===== 解决方案 tabs ===== */
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sol{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.sol .emoji{font-size:34px;flex:0 0 auto}
.sol h4{font-size:18px;margin-bottom:6px}
.sol p{color:var(--muted);font-size:14.5px}

/* ===== 产品 ===== */
.product{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.prod{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.prod .ph{height:180px;background:linear-gradient(135deg,var(--primary-dark),var(--primary));overflow:hidden}
.prod .ph img{width:100%;height:100%;object-fit:cover;display:block}
.prod .pb{padding:26px}
.prod h3{font-size:20px;margin-bottom:8px}
.prod .desc{color:var(--muted);font-size:14.5px;margin-bottom:16px;min-height:64px}
.prod ul{list-style:none;display:grid;gap:8px;margin-bottom:18px}
.prod li{font-size:14px;color:var(--text);display:flex;gap:8px}
.prod li::before{content:"✓";color:var(--primary);font-weight:800}
.price-row{display:flex;align-items:center;justify-content:space-between;border-top:1px dashed var(--border);padding-top:16px}
.price{font-size:22px;font-weight:800;color:var(--primary)}
.price small{font-size:13px;color:var(--muted);font-weight:500}

/* 设备参数行 + 适用场景标签 */
.prod .specs{margin:0 0 16px;border-top:1px solid var(--border);padding-top:14px}
.prod .spec-row{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:6px 0;border-bottom:1px dashed var(--border)}
.prod .spec-row .k{color:var(--muted);flex:0 0 auto}
.prod .spec-row .v{font-weight:600;color:var(--text);text-align:right}
.prod .scene{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.prod .scene span{font-size:12.5px;background:var(--primary-light);color:var(--primary);padding:5px 12px;border-radius:20px;font-weight:600}
/* 设备融合展示图：完整显示、不裁切 */
.prod .ph.gallery{height:auto;background:#fff;padding:18px;display:flex;justify-content:center;align-items:center}
.prod .ph.gallery img{width:100%;max-width:680px;height:auto;object-fit:contain;margin:0 auto}

/* 联系页：小程序 + 公众号 左右并排、底部对齐 */
.qr-row{display:flex;gap:14px;align-items:stretch;max-width:480px;margin:28px auto 0;justify-content:center}
.qr-row .login-box{flex:1;margin:0;padding:22px 18px}
@media(max-width:520px){.qr-row{flex-direction:column}}

/* 套餐卡片：紧凑彩色标题（图标+名称），价格突出，不再空白大色块 */
.plan{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.25s;box-shadow:var(--shadow)}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.plan .head{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;padding:16px 22px;display:flex;align-items:center;gap:12px}
.plan .head .pi{font-size:24px;line-height:1;flex:0 0 auto}
.plan .head h3{color:#fff;font-size:18px;margin:0;font-weight:700}
.plan .pb{padding:22px;display:flex;flex-direction:column;flex:1}
.plan .price{font-size:28px;font-weight:800;color:var(--primary);margin-bottom:2px}
.plan .price small{font-size:13px;color:var(--muted);font-weight:500}
.plan .pdesc{color:var(--muted);font-size:14px;margin:10px 0 16px}
.plan ul{list-style:none;display:grid;gap:8px;margin-bottom:18px}
.plan li{font-size:14px;color:var(--text);display:flex;gap:8px}
.plan li::before{content:"✓";color:var(--primary);font-weight:800}
.plan .price-row{border-top:1px dashed var(--border);padding-top:16px;margin-top:auto}

/* ===== 招商 ===== */
.partner{background:linear-gradient(135deg,#0a2540,#1a56db);color:#fff;border-radius:22px;padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.partner h2{font-size:32px;font-weight:800;margin-bottom:14px}
.partner p{color:rgba(255,255,255,.85);margin-bottom:20px}
.partner ul{list-style:none;display:grid;gap:12px}
.partner li{display:flex;gap:10px;align-items:center}
.partner li::before{content:"★";color:var(--accent)}

/* ===== 表单 ===== */
.form-wrap{max-width:560px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.field input,.field textarea,.field select{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:13px;color:var(--muted);text-align:center;margin-top:14px}
.form-ok{display:none;background:#e9f9ef;color:#1a7f43;border:1px solid #b6e8c7;border-radius:10px;padding:14px;text-align:center;margin-bottom:18px;font-weight:600}
.form-ok.show{display:block}

/* ===== 联系信息 ===== */
.contact-intro{text-align:center;max-width:640px;margin:0 auto 32px}
.contact-intro h2{font-size:28px;margin-bottom:12px}
.contact-intro p{color:var(--muted);font-size:15.5px;line-height:1.7}
.login-box{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:26px;text-align:center}
.login-box .ic{font-size:40px;margin-bottom:12px}
.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--primary);background:var(--primary-light);padding:4px 12px;border-radius:30px;margin-bottom:10px}

/* ===== Footer ===== */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;margin-bottom:40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer a{display:block;color:rgba(255,255,255,.7);font-size:14px;margin-bottom:10px;transition:.2s}
.footer a:hover{color:var(--accent)}
.footer .about{font-size:14px;line-height:1.8}
.footer .about .logo{color:#fff;margin-bottom:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:80px 0 70px}
  .hero h1{font-size:36px}
  .grid-3,.grid-2,.product,.sol-grid,.partner,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .nav-links{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 20px;border-bottom:1px solid var(--border);transform:translateY(-130%);transition:.3s;box-shadow:var(--shadow)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--border);width:100%}
  .nav-toggle{display:flex}
  .section{padding:60px 0}
  .section-title h2{font-size:27px}
  .partner{padding:34px}
}
@media(max-width:520px){
  .steps{grid-template-columns:1fr}
  .hero-stats{gap:22px}
  .hero-stats .num{font-size:24px}
}