/* products/index.html 页面专属样式（原内联 <style> 抽出，CSP 禁用内联样式） */
:root{
    --ink:#0F2233; --ink2:#405667; --ink3:#708596;
    --line:#E4EAF1; --line2:#EFF3F8;
    --bg:#FFFFFF; --bg2:#F7F9FC; --bg3:#EDF2F8;
    --brand:#12395E; --brand2:#1B5A8C;
    --acc:#0E9384; --acc-2:#0B7A6E; --acc-bg:#E9F6F3;
    --warn:#B54708; --warn-bg:#FDF4E8;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%; scroll-behavior:smooth;}
  body{
    margin:0; background:var(--bg); color:var(--ink);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",sans-serif;
    font-size:16px; line-height:1.75; -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%; display:block;}
  a{color:inherit; text-decoration:none;}
  svg{display:block;}
  .wrap{max-width:1200px; margin:0 auto; padding:0 32px;}
  .sr{position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0);}
  :focus-visible{outline:2px solid var(--acc); outline-offset:2px;}

  /* ---------- top bar ---------- */
  .topbar{background:var(--bg2); border-bottom:1px solid var(--line); font-size:13px; color:var(--ink2);}
  .topbar .wrap{display:flex; align-items:center; gap:16px; height:56px;}
  .brand{display:flex; align-items:center; gap:11px;}
  .brand .mark{
    width:34px; height:34px; border-radius:9px; background:linear-gradient(150deg,#17456F,#0E9384);
    color:#fff; font-weight:700; font-size:17px; display:flex; align-items:center; justify-content:center;
    letter-spacing:-.5px; flex:0 0 34px;
  }
  .brand .nm{font-weight:700; color:var(--brand); font-size:15.5px; letter-spacing:-.2px;}
  .brand .tag{color:var(--ink3); font-size:12.5px; padding-left:12px; border-left:1px solid var(--line); margin-left:2px;}
  .topbar .tel{margin-left:auto; display:flex; align-items:center; gap:7px; font-weight:700; color:var(--brand); font-size:14.5px; white-space:nowrap;}
  .topbar .tel svg{width:15px; height:15px; stroke:var(--acc);}

  /* ---------- nav ---------- */
  .nav{background:#fff; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:60;}
  .nav .wrap{display:flex; align-items:center; height:60px; gap:4px; position:relative;}
  .menu{display:flex; align-items:center; gap:2px; flex:1;}
  .menu > li{list-style:none; position:relative;}
  .menu > li > a{
    display:block; padding:8px 15px; font-size:15px; font-weight:600; color:#26394A; border-radius:7px;
    transition:color .18s, background .18s; white-space:nowrap;
  }
  .menu > li > a:hover{color:var(--brand); background:var(--bg2);}
  .menu > li > a.on{color:var(--brand);}
  .menu > li > a.on::after{content:""; display:block; height:2px; background:var(--brand); border-radius:2px; margin-top:3px;}
  .caret{display:inline-block; width:7px; height:7px; border-right:1.6px solid #98A9B9; border-bottom:1.6px solid #98A9B9; transform:rotate(45deg) translateY(-2px); margin-left:7px; transition:transform .2s;}

  .drop{
    position:absolute; top:calc(100% + 8px); left:0; min-width:430px;
    background:#fff; border:1px solid var(--line); border-radius:12px;
    box-shadow:0 16px 40px rgba(15,34,51,.11); padding:16px 18px;
    display:flex; gap:26px; opacity:0; visibility:hidden; transform:translateY(-6px);
    transition:opacity .18s, transform .18s, visibility .18s;
  }
  .menu > li:hover .drop, .menu > li:focus-within .drop{opacity:1; visibility:visible; transform:translateY(0);}
  .menu > li:hover .caret{transform:rotate(225deg) translateY(-4px);}
  .dcol .h{font-size:11.5px; letter-spacing:.06em; color:var(--ink3); font-weight:700; margin-bottom:8px; text-transform:uppercase;}
  .dcol a{display:block; font-size:13.5px; color:#26394A; padding:5px 8px; border-radius:6px; margin:0 -8px; font-weight:500;}
  .dcol a:hover{background:var(--bg2); color:var(--acc-2);}
  .dcol a.sub{padding-left:18px; font-weight:400; color:var(--ink2); font-size:13px;}
  .dcol .sep{height:1px; background:var(--line2); margin:10px 0;}
  .dcol .hint{font-size:11.5px; color:#9DAFBE; padding-top:6px; line-height:1.5;}
  .dcol.legacy{border-left:1px solid var(--line2); padding-left:24px;}
  .drop.narrow{min-width:222px; display:block; padding:12px 14px;}
  .drop.narrow > a{display:block; font-size:13.5px; color:#26394A; padding:7px 10px; border-radius:6px; font-weight:500;}
  .drop.narrow > a:hover{background:var(--bg2); color:var(--acc-2);}
  .drop.right{left:auto; right:0;}

  .burger{display:none; margin-left:auto; width:44px; height:44px; border:1px solid var(--line); background:#fff; border-radius:9px; align-items:center; justify-content:center; cursor:pointer;}
  .burger span{display:block; width:18px; height:2px; background:#26394A; position:relative;}
  .burger span::before,.burger span::after{content:""; position:absolute; left:0; width:18px; height:2px; background:#26394A;}
  .burger span::before{top:-6px;} .burger span::after{top:6px;}

  /* ---------- breadcrumb ---------- */
  .crumb{background:var(--bg2); border-bottom:1px solid var(--line2); font-size:12.5px; color:var(--ink3);}
  .crumb .wrap{display:flex; align-items:center; gap:8px; height:44px; flex-wrap:wrap;}
  .crumb a:hover{color:var(--brand);}
  .crumb .sl{color:#B4C2CF;}

  /* ---------- hero ---------- */
  .hero{padding:64px 0 54px; background:linear-gradient(180deg,#FFFFFF 0%,#F7FAFD 100%);}
  .hero .eyebrow{font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--acc-2); font-weight:700; margin:0 0 16px;}
  h1{font-size:40px; line-height:1.28; margin:0 0 20px; letter-spacing:-.8px; font-weight:700; color:var(--brand);}
  .hero .def{font-size:16.5px; color:var(--ink2); max-width:820px; margin:0 0 26px; line-height:1.85;}
  .hero .def strong{color:var(--ink); font-weight:600;}
  .cta-row{display:flex; flex-wrap:wrap; gap:12px; align-items:center;}
  .btn{
    display:inline-flex; align-items:center; gap:8px; padding:13px 24px; border-radius:8px;
    font-size:15px; font-weight:600; border:1px solid transparent; cursor:pointer; transition:.18s; min-height:46px;
  }
  .btn-p{background:var(--brand); color:#fff;}
  .btn-p:hover{background:#0E2B47;}
  .btn-s{background:#fff; color:var(--brand); border-color:#CBD8E4;}
  .btn-s:hover{border-color:var(--brand); background:#FAFCFE;}
  .btn svg{width:16px; height:16px; stroke:currentColor;}
  .hero .note{font-size:12.5px; color:var(--ink3); margin-top:14px;}

  /* ---------- section shell ---------- */
  section{padding:56px 0;}
  .sec-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:26px; flex-wrap:wrap;}
  .sec-head .l{max-width:720px;}
  .kicker{font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:var(--acc-2); font-weight:700; margin:0 0 10px;}
  h2{font-size:28px; line-height:1.35; margin:0 0 10px; letter-spacing:-.4px; color:var(--brand); font-weight:700;}
  .sec-head p{margin:0; color:var(--ink2); font-size:15px;}
  .rule{height:1px; background:var(--line); border:0; margin:0;}

  /* ---------- main product cards ---------- */
  .pgrid{display:grid; grid-template-columns:1fr 1fr; gap:22px;}
  .pcard{
    background:#fff; border:1px solid var(--line); border-radius:14px; overflow:hidden;
    display:flex; flex-direction:column; transition:box-shadow .22s, transform .22s, border-color .22s;
  }
  .pcard:hover{box-shadow:0 16px 36px rgba(18,57,94,.09); transform:translateY(-2px); border-color:#C9DCE8;}
  .pcard .head{padding:26px 28px 0;}
  .ptag{display:inline-block; font-size:11.5px; font-weight:700; letter-spacing:.04em; color:var(--acc-2); background:var(--acc-bg); border-radius:20px; padding:3px 11px; margin-bottom:14px;}
  .pcard h3{font-size:23px; margin:0 0 8px; color:var(--brand); letter-spacing:-.3px; font-weight:700;}
  .pcard .lead{font-size:14.5px; color:var(--ink2); margin:0 0 20px; line-height:1.75;}
  .feat{list-style:none; padding:0; margin:0 0 22px;}
  .feat li{display:flex; gap:11px; padding:9px 0; border-top:1px solid var(--line2); font-size:14px; color:#2C4053;}
  .feat li:first-child{border-top:0;}
  .feat .ico{flex:0 0 18px; width:18px; height:18px; margin-top:3px;}
  .feat .ico svg{width:18px; height:18px; stroke:var(--acc); fill:none; stroke-width:1.7;}
  .feat b{color:var(--ink); font-weight:600;}
  .pcard .foot{margin-top:auto; padding:0 28px 26px;}
  .who{font-size:12.5px; color:var(--ink3); margin:0 0 14px; padding-top:14px; border-top:1px solid var(--line2);}
  .who b{color:var(--ink2); font-weight:600;}
  .link{display:inline-flex; align-items:center; gap:7px; font-size:14.5px; font-weight:700; color:var(--brand);}
  .link svg{width:15px; height:15px; stroke:currentColor; transition:transform .18s;}
  .link:hover{color:var(--acc-2);}
  .link:hover svg{transform:translateX(3px);}

  /* ---------- audience strip ---------- */
  .aud{background:var(--bg2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
  .aud .wrap{display:flex; align-items:center; gap:28px; padding-top:22px; padding-bottom:22px; flex-wrap:wrap;}
  .aud .lb{font-size:13px; font-weight:700; color:var(--brand); flex:0 0 auto;}
  .aud ul{display:flex; flex-wrap:wrap; gap:10px 26px; list-style:none; margin:0; padding:0;}
  .aud li{font-size:13.5px; color:var(--ink2); display:flex; align-items:center; gap:8px;}
  .aud li::before{content:""; width:5px; height:5px; border-radius:50%; background:var(--acc); flex:0 0 5px;}

  /* ---------- legacy ---------- */
  .legacy-sec{background:var(--bg2); border-top:1px solid var(--line);}
  .lhead{display:flex; align-items:center; gap:12px; margin-bottom:8px; flex-wrap:wrap;}
  .lhead h2{font-size:22px; margin:0; color:#3B5266;}
  .st{font-size:11.5px; font-weight:700; color:#6B7F92; background:#E7EDF3; border-radius:20px; padding:3px 11px;}
  .legacy-sec > .wrap > p.desc{color:var(--ink3); font-size:14px; margin:0 0 24px; max-width:780px;}
  .lgrid{display:grid; grid-template-columns:repeat(4,1fr); gap:14px;}
  .lcard{
    background:#fff; border:1px solid var(--line); border-radius:11px; padding:20px 20px 18px;
    display:flex; flex-direction:column; transition:border-color .2s, box-shadow .2s;
  }
  .lcard:hover{border-color:#CFDBE6; box-shadow:0 8px 20px rgba(15,34,51,.05);}
  .lcard h4{font-size:15px; margin:0 0 4px; color:#33495C; font-weight:700;}
  .lcard .yr{font-size:11.5px; color:#93A6B5; margin:0 0 10px; font-family:ui-monospace,Menlo,monospace;}
  .lcard p{font-size:12.8px; color:#6B7F92; margin:0 0 16px; line-height:1.65;}
  .lcard .more{margin-top:auto; font-size:12.5px; font-weight:600; color:#8FA3B3;}
  .lcard:hover .more{color:var(--acc-2);}
  .lfoot{font-size:12.5px; color:var(--ink3); margin-top:18px;}

  /* ---------- trust ---------- */
  .trust{background:#fff;}
  .tgrid{display:grid; grid-template-columns:repeat(5,1fr); gap:0; border:1px solid var(--line); border-radius:12px; overflow:hidden;}
  .titem{padding:24px 22px; border-right:1px solid var(--line);}
  .titem:last-child{border-right:0;}
  .titem .n{font-size:24px; font-weight:700; color:var(--brand); letter-spacing:-.5px; line-height:1.3;}
  .titem .d{font-size:12.5px; color:var(--ink3); margin-top:5px; line-height:1.55;}

  /* ---------- cases ---------- */
  .cgrid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
  .ccard{border:1px solid var(--line); border-radius:12px; padding:24px; background:#fff; transition:border-color .2s, box-shadow .2s;}
  .ccard:hover{border-color:#C9DCE8; box-shadow:0 10px 26px rgba(18,57,94,.07);}
  .ccard .k{font-size:11.5px; font-weight:700; color:var(--acc-2); letter-spacing:.05em; margin-bottom:10px;}
  .ccard h4{font-size:16px; margin:0 0 8px; color:var(--brand); font-weight:700;}
  .ccard p{font-size:13.5px; color:var(--ink2); margin:0; line-height:1.7;}

  /* ---------- faq ---------- */
  .faq-wrap{max-width:900px;}
  details{border-bottom:1px solid var(--line);}
  details summary{
    display:flex; align-items:flex-start; gap:14px; padding:19px 0; cursor:pointer;
    font-size:15.5px; font-weight:600; color:var(--ink); list-style:none; line-height:1.6;
  }
  details summary::-webkit-details-marker{display:none;}
  details summary .q{flex:0 0 auto; width:22px; height:22px; border-radius:6px; background:var(--bg3); color:var(--brand2); font-size:12px; font-weight:700; display:flex; align-items:center; justify-content:center; margin-top:1px;}
  details summary .pm{margin-left:auto; flex:0 0 18px; position:relative; height:18px; margin-top:4px;}
  details summary .pm::before,details summary .pm::after{content:""; position:absolute; background:#93A6B5; border-radius:1px;}
  details summary .pm::before{left:0; top:8px; width:12px; height:1.6px;}
  details summary .pm::after{left:5px; top:3px; width:1.6px; height:12px; transition:opacity .2s;}
  details[open] summary .pm::after{opacity:0;}
  details .a{padding:0 0 22px 36px; font-size:14.5px; color:var(--ink2); line-height:1.85;}
  details .a p{margin:0 0 10px;}
  details .a p:last-child{margin-bottom:0;}
  details[open] summary{color:var(--brand);}

  /* ---------- form ---------- */
  .conv{background:linear-gradient(165deg,#0E2B47 0%,#12395E 60%,#17456F 100%); color:#fff;}
  .conv .inner{display:grid; grid-template-columns:1fr 420px; gap:56px; align-items:start; padding:60px 0;}
  .conv h2{color:#fff; font-size:29px; margin:0 0 14px;}
  .conv .sub{color:#B9CEE0; font-size:15px; margin:0 0 28px; max-width:520px;}
  .citem{display:flex; gap:13px; padding:13px 0; border-top:1px solid rgba(255,255,255,.12); font-size:14px; color:#D5E3EE;}
  .citem:first-of-type{border-top:0;}
  .citem .ic{flex:0 0 30px; width:30px; height:30px; border-radius:8px; background:rgba(255,255,255,.09); display:flex; align-items:center; justify-content:center;}
  .citem .ic svg{width:15px; height:15px; stroke:#7FE0D0;}
  .citem b{color:#fff; display:block; font-size:14.5px; margin-bottom:2px;}
  .citem a{color:#7FE0D0;}
  .form{background:#fff; border-radius:14px; padding:28px; color:var(--ink);}
  .form h3{font-size:17px; margin:0 0 4px; color:var(--brand); font-weight:700;}
  .form .fh{font-size:12.5px; color:var(--ink3); margin:0 0 20px;}
  .field{margin-bottom:14px;}
  .field label{display:block; font-size:12.5px; font-weight:600; color:var(--ink2); margin-bottom:6px;}
  .field input,.field select,.field textarea{
    width:100%; padding:11px 13px; border:1px solid #D8E2EC; border-radius:8px; font-size:14px;
    font-family:inherit; color:var(--ink); background:#fff; transition:border-color .16s;
  }
  .field input:focus,.field select:focus,.field textarea:focus{outline:none; border-color:var(--acc); box-shadow:0 0 0 3px rgba(14,147,132,.12);}
  .field textarea{resize:vertical; min-height:74px;}
  .form .btn-p{width:100%; justify-content:center; margin-top:4px;}
  .form .tip{font-size:11.5px; color:var(--ink3); margin:12px 0 0; text-align:center; line-height:1.6;}

  /* ---------- footer ---------- */
  footer{background:#0C2237; color:#8FA8BC; font-size:13px; padding:48px 0 26px;}
  .fgrid{display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:36px; padding-bottom:32px; border-bottom:1px solid rgba(255,255,255,.09);}
  footer .brand .nm{color:#fff;}
  footer .brand .tag{color:#7E97AC; border-color:rgba(255,255,255,.14);}
  footer .fbrief{font-size:12.5px; line-height:1.8; color:#7E97AC; margin:14px 0 0; max-width:330px;}
  footer h5{font-size:13px; color:#D5E3EE; margin:0 0 12px; font-weight:700;}
  footer ul{list-style:none; padding:0; margin:0;}
  footer li{margin-bottom:8px; font-size:12.5px;}
  footer a:hover{color:#7FE0D0;}
  .fbot{display:flex; justify-content:space-between; gap:20px; padding-top:20px; font-size:12px; color:#63798C; flex-wrap:wrap; line-height:1.8;}

  @media (max-width:1100px){
    .lgrid{grid-template-columns:repeat(2,1fr);}
    .tgrid{grid-template-columns:repeat(3,1fr);}
    .titem:nth-child(3){border-right:0;}
    .titem:nth-child(n+4){border-top:1px solid var(--line);}
    .conv .inner{grid-template-columns:1fr 380px; gap:36px;}
  }
  @media (max-width:900px){
    .wrap{padding:0 20px;}
    .menu,.drop{display:none;}
    .menu.mobile-open{
      display:flex; flex-direction:column; align-items:stretch; gap:0;
      position:absolute; top:100%; left:0; right:0; background:#fff;
      border-bottom:1px solid var(--line); box-shadow:0 14px 28px rgba(15,34,51,.09);
      padding:6px 20px 16px; margin:0;
    }
    .menu.mobile-open > li{border-bottom:1px solid var(--line2);}
    .menu.mobile-open > li:last-child{border-bottom:0;}
    .menu.mobile-open > li > a{padding:14px 2px; font-size:15.5px; border-radius:0;}
    .menu.mobile-open > li > a.on::after{display:none;}
    .burger{display:flex;}
    .brand .tag{display:none;}
    .topbar .wrap{height:52px;}
    h1{font-size:30px;}
    .hero{padding:44px 0 40px;}
    .pgrid{grid-template-columns:1fr;}
    .cgrid{grid-template-columns:1fr;}
    .conv .inner{grid-template-columns:1fr; padding:44px 0;}
    .fgrid{grid-template-columns:1fr 1fr; gap:26px;}
    section{padding:44px 0;}
    h2{font-size:23px;}
    .tgrid{grid-template-columns:repeat(2,1fr);}
    .titem:nth-child(2n){border-right:0;}
    .titem:nth-child(n+3){border-top:1px solid var(--line);}
  }
  @media (max-width:560px){
    .wrap{padding:0 16px;}
    h1{font-size:25px; letter-spacing:-.4px;}
    .hero .def{font-size:15px;}
    .lgrid{grid-template-columns:1fr;}
    .btn{width:100%; justify-content:center;}
    .cta-row{flex-direction:column; align-items:stretch;}
    .tgrid{grid-template-columns:1fr;}
    .titem{border-right:0; border-top:1px solid var(--line);}
    .titem:first-child{border-top:0;}
    .pcard .head,.pcard .foot{padding-left:20px; padding-right:20px;}
    .form{padding:22px;}
    .fgrid{grid-template-columns:1fr;}
    .aud .wrap{gap:14px;}
  }

/* ---------- 咨询表单（与首页同一结构：label>span + 4 项字段） ---------- */
.contact-form{padding:28px; border:1px solid var(--line); border-radius:8px; background:#fff; box-shadow:0 18px 50px rgba(18,57,94,.10);}
.contact-form label{display:block; margin-bottom:16px;}
.contact-form span{display:block; margin-bottom:8px; color:var(--ink2); font-weight:700;}
.contact-form input,.contact-form select,.contact-form textarea{width:100%; border:1px solid #CBDDEB; border-radius:6px; padding:12px 14px; color:var(--ink); font:inherit; background:#FBFDFF;}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none; border-color:var(--acc); box-shadow:0 0 0 3px rgba(14,147,132,.12);}
.contact-form textarea{resize:vertical;}
.contact-form .form-submit{width:100%; justify-content:center; text-align:center;}
.form-note{margin:14px 0 0; color:var(--ink3); font-size:13px; line-height:1.7;}
.form-note a{color:var(--acc-2); font-weight:600;}