*{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
    background:var(--paper);
    color:var(--ink);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  .wrap{max-width:1080px;margin:0 auto;padding:0 24px;}
  a{color:inherit;}

  /* ---------- top bar ---------- */
  header.bar{
    position:sticky;top:0;z-index:20;
    background:rgba(246,243,235,0.86);
    backdrop-filter:saturate(120%) blur(6px);
    border-bottom:0.5px solid var(--line);
  }
  .bar .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;}
  .brand{display:flex;align-items:center;gap:10px;}
  .brand .mark{
    width:34px;height:34px;background:var(--seal);color:#fff;border-radius:5px;
    display:flex;align-items:center;justify-content:center;
    font-family:"KaiTi","STKaiti","SimSun",serif;font-size:20px;transform:rotate(-3deg);
  }
  .brand .name{font-size:17px;font-weight:600;letter-spacing:3px;}
  .bar nav a{font-size:14px;color:var(--ink-soft);margin-left:20px;text-decoration:none;letter-spacing:1px;}
  .bar nav a:hover{color:var(--indigo);}
  .bar .contact-link{
    font-size:13px;color:#fff;background:var(--indigo);padding:7px 16px;border-radius:4px;
    text-decoration:none;letter-spacing:1px;margin-left:16px;
  }
  .bar .contact-link:hover{color:#fff;background:var(--indigo-soft);}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;padding:88px 0 66px;text-align:center;}
  .hero svg.mountains{position:absolute;left:0;right:0;top:0;width:100%;height:260px;opacity:0.55;}
  .hero .inner{position:relative;z-index:1;}
  .seal-big{
    display:inline-flex;align-items:center;justify-content:center;
    width:70px;height:70px;background:var(--seal);color:#fff;border-radius:7px;
    font-family:"KaiTi","STKaiti","SimSun",serif;font-size:38px;transform:rotate(-3deg);
    box-shadow:0 3px 0 rgba(0,0,0,0.07);
  }
  .domain{letter-spacing:5px;color:var(--gray);font-size:13px;margin-top:20px;text-transform:uppercase;}
  h1.title{font-size:54px;font-weight:700;letter-spacing:10px;margin:8px 0 6px;color:var(--ink);}
  .slogan{font-size:18px;color:var(--ink-soft);letter-spacing:1px;}
  .slogan b{color:var(--indigo);font-weight:600;}
  .cta{display:inline-block;margin-top:30px;padding:12px 32px;background:var(--indigo);color:#fff;
    text-decoration:none;border-radius:4px;letter-spacing:3px;font-size:14px;transition:background .2s;}
  .cta:hover{background:var(--indigo-soft);}

  /* ---------- section ---------- */
  section{padding:60px 0;}
  .sec-head{text-align:center;margin-bottom:38px;}
  .sec-head .cn{font-size:25px;font-weight:600;letter-spacing:4px;}
  .sec-head .en{font-size:12px;color:var(--gray);letter-spacing:4px;text-transform:uppercase;margin-top:7px;}
  .brush{display:block;width:64px;height:12px;margin:14px auto 0;}

  /* brand philosophy */
  .philosophy{max-width:760px;margin:0 auto;text-align:center;}
  .philosophy .quote{font-size:22px;line-height:1.9;color:var(--ink);font-weight:500;letter-spacing:1px;}
  .philosophy .quote .hl{color:var(--seal);}
  .philosophy p{font-size:15px;color:var(--ink-soft);margin-top:20px;}
  .philosophy p + p{margin-top:14px;}

  /* meaning */
  .meaning{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
  .m-card{background:var(--card);border:0.5px solid var(--line);border-radius:12px;padding:28px 26px;}
  .m-card .tag{display:inline-block;font-size:13px;color:#fff;background:var(--indigo);padding:3px 12px;border-radius:4px;letter-spacing:2px;}
  .m-card h3{font-size:26px;font-weight:600;letter-spacing:3px;margin:16px 0 10px;}
  .m-card p{font-size:14px;color:var(--ink-soft);}
  .m-card .sub{margin-top:14px;font-size:13px;color:var(--gray);border-top:0.5px dashed var(--line);padding-top:12px;}

  /* matrix */
  .matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
  .mx-card{background:var(--card);border:0.5px solid var(--line);border-radius:12px;padding:22px 20px;}
  .mx-card .idx{width:30px;height:30px;border-radius:50%;background:var(--indigo);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:13px;font-family:"KaiTi","STKaiti",serif;margin-bottom:12px;}
  .mx-card h3{font-size:16px;font-weight:600;letter-spacing:1px;margin-bottom:6px;}
  .mx-card p{font-size:13px;color:var(--ink-soft);}
  .mx-card .tags{margin-top:10px;font-size:12px;color:var(--gray);}

  /* talent */
  .talent{display:grid;grid-template-columns:1.1fr 1fr;gap:26px;align-items:center;}
  .talent .lead p{font-size:15px;color:var(--ink-soft);}
  .talent .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
  .talent .chips span{font-size:13px;color:var(--indigo);border:0.5px solid var(--line);
    background:var(--card);padding:6px 14px;border-radius:20px;letter-spacing:1px;}
  .std{border-left:3px solid var(--seal);padding-left:18px;}
  .std h3{font-size:15px;font-weight:600;margin-bottom:12px;letter-spacing:1px;}
  .std li{font-size:14px;color:var(--ink-soft);margin-bottom:10px;list-style:none;position:relative;padding-left:18px;}
  .std li:before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--seal);}

  /* process */
  .process{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step;}
  .step{background:var(--card);border:0.5px solid var(--line);border-radius:12px;padding:22px 18px;position:relative;}
  .step .no{font-family:"KaiTi","STKaiti",serif;font-size:30px;color:var(--indigo);font-weight:700;line-height:1;}
  .step h3{font-size:15px;font-weight:600;margin:10px 0 6px;letter-spacing:1px;}
  .step p{font-size:13px;color:var(--ink-soft);}

  /* advantages */
  .adv{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
  .adv-card{background:var(--card);border:0.5px solid var(--line);border-radius:12px;padding:24px 18px;text-align:center;}
  .adv-card .ico{width:44px;height:44px;margin:0 auto 12px;border-radius:50%;background:var(--paper-2);
    display:flex;align-items:center;justify-content:center;font-family:"KaiTi","STKaiti",serif;font-size:22px;color:var(--seal);}
  .adv-card h3{font-size:15px;font-weight:600;letter-spacing:1px;margin-bottom:6px;}
  .adv-card p{font-size:13px;color:var(--ink-soft);}

  /* scenarios */
  .scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
  .s-card{background:var(--card);border:0.5px solid var(--line);border-radius:12px;padding:22px 22px;}
  .s-card .who{font-size:12px;color:#fff;background:var(--seal);display:inline-block;padding:3px 12px;border-radius:4px;letter-spacing:1px;margin-bottom:12px;}
  .s-card h3{font-size:16px;font-weight:600;letter-spacing:1px;margin-bottom:8px;}
  .s-card p{font-size:13px;color:var(--ink-soft);}

  /* vision */
  .vision{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:center;}
  .v-num{font-size:32px;font-weight:700;color:var(--indigo);}
  .v-lab{font-size:13px;color:var(--ink-soft);margin-top:6px;letter-spacing:1px;}
  .vision-note{text-align:center;font-size:12px;color:var(--gray);margin-top:18px;}

  /* faq */
  .faq{max-width:780px;margin:0 auto;}
  details{border:0.5px solid var(--line);border-radius:10px;background:var(--card);padding:0 18px;margin-bottom:12px;}
  summary{list-style:none;cursor:pointer;padding:16px 0;font-size:15px;font-weight:600;letter-spacing:1px;position:relative;}
  summary::-webkit-details-marker{display:none;}
  summary:after{content:"+";position:absolute;right:2px;top:14px;font-size:20px;color:var(--indigo);font-weight:400;}
  details[open] summary:after{content:"\2212";}
  details .ans{padding:0 0 16px;font-size:14px;color:var(--ink-soft);}

  /* contact */
  .contact-box{background:var(--card);border:0.5px solid var(--line);border-radius:14px;padding:38px 30px;max-width:640px;margin:0 auto;}
  .contact-box p.lead{text-align:center;color:var(--ink-soft);font-size:14px;margin-bottom:22px;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:7px;letter-spacing:1px;}
  .field input,.field textarea{
    width:100%;border:0.5px solid var(--line);border-radius:8px;background:rgba(255,255,255,0.7);
    padding:11px 13px;font-size:14px;color:var(--ink);font-family:inherit;outline:none;transition:border-color .2s;
  }
  .field input:focus,.field textarea:focus{border-color:var(--indigo);}
  .field textarea{resize:vertical;min-height:96px;}
  .submit{
    width:100%;border:none;background:var(--seal);color:#fff;padding:13px;border-radius:8px;
    font-size:15px;letter-spacing:4px;cursor:pointer;font-family:inherit;transition:opacity .2s;
  }
  .submit:hover{opacity:0.92;}
  .submit:disabled{opacity:0.6;cursor:not-allowed;}
  .note{text-align:center;font-size:12px;color:var(--gray);margin-top:16px;}
  .form-msg{text-align:center;font-size:13px;margin-top:12px;min-height:18px;}
  .form-msg.ok{color:var(--indigo);}
  .form-msg.err{color:var(--seal);}
  .qr-side{text-align:center;margin-top:18px;}
  .qr-side img{max-width:160px;border:0.5px solid var(--line);border-radius:8px;}

  /* footer */
  footer{background:var(--paper-2);border-top:0.5px solid var(--line);padding:40px 0 26px;}
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;}
  .foot-grid h5{font-size:14px;font-weight:600;letter-spacing:2px;margin-bottom:12px;}
  .foot-grid a,.foot-grid p{display:block;font-size:13px;color:var(--ink-soft);text-decoration:none;margin-bottom:8px;}
  .foot-grid a:hover{color:var(--indigo);}
  .foot-brand .name{font-size:18px;font-weight:600;letter-spacing:3px;}
  .foot-brand p{margin-top:10px;font-size:13px;color:var(--gray);max-width:260px;}
  .copyright{text-align:center;font-size:12px;color:var(--gray);letter-spacing:1px;margin-top:30px;border-top:0.5px solid var(--line);padding-top:18px;}

  @media (max-width:860px){
    .matrix,.adv,.scenes,.vision{grid-template-columns:repeat(2,1fr);}
    .process{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:720px){
    h1.title{font-size:38px;letter-spacing:6px;}
    .meaning,.talent{grid-template-columns:1fr;}
    .matrix,.adv,.scenes,.vision,.process,.foot-grid{grid-template-columns:1fr;}
    .bar nav{display:none;}
    section{padding:46px 0;}
  }