:root{
      --primary:#0B3D91;
      --primary-dark:#06265e;
      --primary-light:#e9f1ff;
      --accent:#54f28b;
      --ink:#10213d;
      --muted:#60708b;
      --line:#dce5f2;
      --surface:#ffffff;
      --soft:#f4f7fb;
      --deep:#07162f;
      --shadow:0 18px 50px rgba(16,33,61,.11);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:#fff;
      font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;
      line-height:1.65;
      -webkit-font-smoothing:antialiased;
    }
    body.drawer-lock{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}

    .topbar{
      color:#dce9ff;
      background:var(--deep);
      border-bottom:1px solid rgba(255,255,255,.08);
      font-size:13px;
    }
    .topbar-inner{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .topbar-contact{display:flex;align-items:center;gap:20px}
    .topbar-contact a{transition:color .2s ease}
    .topbar-contact a:hover{color:var(--accent)}

    .header{
      position:relative;
      z-index:50;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 5px 20px rgba(16,33,61,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .logo,.footer-logo{
      display:flex;
      align-items:center;
      gap:11px;
      flex:none;
      font-size:20px;
      font-weight:800;
      color:var(--primary-dark);
    }
    .logo img,.footer-logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }
    .main-nav{align-self:stretch;margin-left:auto}
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{position:relative;display:flex;align-items:center}
    .nav-link{
      height:100%;
      display:flex;
      align-items:center;
      padding:0 13px;
      color:#263a58;
      font-size:15px;
      font-weight:600;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{
      color:var(--primary);
      background:var(--primary-light);
    }
    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      margin:-4px 0 0 8px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:rotate(45deg);
      transition:transform .2s ease;
    }
    .nav-item:hover .has-arrow::after,
    .nav-item:focus-within .has-arrow::after{
      margin-top:3px;
      transform:rotate(225deg);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:0;
      z-index:70;
      visibility:hidden;
      opacity:0;
      transform:translateY(10px);
      pointer-events:none;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:0 24px 55px rgba(7,22,47,.16);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }
    .nav-item:hover>.dropdown-panel,
    .nav-item:focus-within>.dropdown-panel,
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{
      visibility:visible;
      opacity:1;
      transform:translateY(0);
      pointer-events:auto;
    }
    .dropdown-panel{
      width:310px;
      padding:18px;
    }
    .dropdown-title{
      margin-bottom:9px;
      color:var(--primary);
      font-size:13px;
      font-weight:800;
    }
    .dropdown-panel>a:not(.dropdown-more){
      display:block;
      padding:10px 0;
      overflow:hidden;
      color:#30445f;
      border-bottom:1px solid #edf1f6;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .dropdown-panel>a:hover{color:var(--primary)}
    .dropdown-more,.mega-footer{
      display:block;
      margin-top:12px;
      color:var(--primary);
      font-size:14px;
      font-weight:800;
    }
    .mega-menu{
      left:50%;
      width:660px;
      padding:20px;
      transform:translate(-50%,10px);
    }
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-menu.mega-wide{
      width:min(900px,calc(100vw - 40px));
    }
    .mega-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      padding-bottom:13px;
      border-bottom:1px solid var(--line);
    }
    .mega-head strong{font-size:17px;color:var(--primary-dark)}
    .mega-head span{color:var(--muted);font-size:12px}
    .mega-categories{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      padding:13px 0 4px;
    }
    .mega-categories a{
      padding:5px 10px;
      color:#40536f;
      background:var(--soft);
      border-radius:999px;
      font-size:12px;
    }
    .mega-categories a:hover{color:#fff;background:var(--primary)}
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
      margin-top:14px;
    }
    .mega-card{
      min-width:0;
      min-height:74px;
      display:flex;
      align-items:center;
      gap:11px;
      padding:10px;
      background:#f8faff;
      border:1px solid transparent;
      border-radius:12px;
      transition:transform .2s ease,border-color .2s ease,background .2s ease;
    }
    .mega-card:hover{
      background:#fff;
      border-color:#bfd1ef;
      transform:translateY(-2px);
    }
    .mega-card img{
      width:46px;
      height:46px;
      flex:none;
      object-fit:contain;
      border-radius:9px;
      background:#fff;
    }
    .mega-video-card img{object-fit:cover}
    .mega-copy{min-width:0;display:grid;gap:2px}
    .mega-copy strong,.mega-copy small{
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-copy strong{font-size:13px;color:#203653}
    .mega-copy small{font-size:11px;color:var(--muted)}
    .mega-footer{
      padding-top:13px;
      border-top:1px solid var(--line);
      text-align:right;
    }
    .header-btns{display:flex;align-items:center;gap:10px;flex:none}
    .member-entry{font-size:14px;color:var(--primary);white-space:nowrap}
    .account-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 17px;
      color:#fff;
      background:var(--primary);
      border-radius:10px;
      font-size:14px;
      font-weight:700;
      box-shadow:0 8px 18px rgba(11,61,145,.2);
      transition:background .2s ease,transform .2s ease;
    }
    .account-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}
    .hamburger{
      width:44px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
    }
    .hamburger span{
      width:20px;
      height:2px;
      background:var(--ink);
      transition:transform .2s ease,opacity .2s ease;
    }
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .drawer-overlay{
      position:fixed;
      inset:0;
      z-index:90;
      visibility:hidden;
      opacity:0;
      background:rgba(4,15,34,.58);
      backdrop-filter:blur(3px);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:100;
      width:min(390px,90vw);
      overflow-y:auto;
      background:#fff;
      box-shadow:-25px 0 60px rgba(4,15,34,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:14px;
      padding:14px 20px;
      color:#fff;
      background:var(--deep);
    }
    .drawer-head>a{font-weight:700}
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      color:#fff;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.2);
      border-radius:9px;
      font-size:26px;
      line-height:1;
    }
    .drawer-menu{padding:12px 18px 30px}
    .drawer-link,.drawer-toggle{
      width:100%;
      min-height:50px;
      display:flex;
      align-items:center;
      padding:0 10px;
      color:#203653;
      background:transparent;
      border:0;
      border-bottom:1px solid var(--line);
      font-weight:700;
      text-align:left;
    }
    .drawer-toggle::after{
      content:"+";
      margin-left:auto;
      color:var(--primary);
      font-size:20px;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:7px 0 9px 14px;
      background:#f7f9fd;
      border-radius:0 0 10px 10px;
    }
    .drawer-submenu.open{display:block}
    .drawer-submenu a{
      display:block;
      padding:8px 10px;
      color:#52637b;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--primary)}

    .about-page{overflow:hidden;background:#fff}
    .about-page .about-hero{
      position:relative;
      padding:92px 0 100px;
      color:#fff;
      background:
        radial-gradient(circle at 12% 20%,rgba(40,129,255,.35),transparent 31%),
        radial-gradient(circle at 84% 74%,rgba(84,242,139,.14),transparent 26%),
        linear-gradient(145deg,#06142c 0%,#08275c 56%,#0B3D91 100%);
    }
    .about-page .about-hero::before{
      content:"";
      position:absolute;
      inset:0;
      opacity:.18;
      background-image:
        linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
      background-size:46px 46px;
      mask-image:linear-gradient(to bottom,#000,transparent);
    }
    .about-page .about-hero-inner{
      position:relative;
      z-index:1;
      max-width:860px;
      margin:auto;
      text-align:center;
    }
    .about-page .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 13px;
      color:#bfe9ff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.15);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.08em;
    }
    .about-page .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      background:var(--accent);
      border-radius:50%;
      box-shadow:0 0 14px var(--accent);
    }
    .about-page .about-hero h1{
      max-width:780px;
      margin:22px auto 18px;
      font-size:clamp(38px,6vw,66px);
      line-height:1.13;
      letter-spacing:-.035em;
    }
    .about-page .about-hero p{
      max-width:760px;
      margin:0 auto;
      color:#cad9ef;
      font-size:18px;
    }
    .about-page .hero-points{
      display:flex;
      justify-content:center;
      flex-wrap:wrap;
      gap:12px;
      margin-top:32px;
    }
    .about-page .hero-points span{
      padding:9px 15px;
      background:rgba(6,20,44,.42);
      border:1px solid rgba(255,255,255,.13);
      border-radius:10px;
      color:#eef6ff;
      font-size:14px;
    }
    .about-page .trust-strip{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      margin-top:-38px;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:var(--shadow);
    }
    .about-page .trust-item{
      padding:25px 22px;
      border-right:1px solid var(--line);
      text-align:center;
    }
    .about-page .trust-item:last-child{border-right:0}
    .about-page .trust-item strong{
      display:block;
      color:var(--primary);
      font-size:24px;
      line-height:1.25;
    }
    .about-page .trust-item span{color:var(--muted);font-size:13px}
    .about-page .section{padding:94px 0}
    .about-page .section-soft{background:var(--soft)}
    .about-page .section-head{
      max-width:720px;
      margin:0 auto 44px;
      text-align:center;
    }
    .about-page .section-kicker{
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      letter-spacing:.14em;
    }
    .about-page .section-head h2{
      margin:10px 0 14px;
      color:var(--deep);
      font-size:clamp(30px,4vw,44px);
      line-height:1.25;
    }
    .about-page .section-head p{margin:0;color:var(--muted)}
    .about-page .story-panel{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
      gap:48px;
      align-items:center;
    }
    .about-page .story-copy h2{
      margin:0 0 20px;
      color:var(--deep);
      font-size:clamp(30px,4vw,44px);
      line-height:1.25;
    }
    .about-page .story-copy p{margin:0 0 16px;color:var(--muted)}
    .about-page .principle-list{
      display:grid;
      gap:12px;
      margin-top:26px;
    }
    .about-page .principle{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:13px;
    }
    .about-page .principle b{
      width:26px;
      height:26px;
      flex:none;
      display:grid;
      place-items:center;
      color:var(--primary-dark);
      background:rgba(84,242,139,.28);
      border-radius:50%;
    }
    .about-page .principle strong{display:block;color:#203653}
    .about-page .principle small{display:block;color:var(--muted)}
    .about-page .story-visual{
      position:relative;
      min-height:460px;
      padding:28px;
      color:#fff;
      overflow:hidden;
      background:linear-gradient(155deg,#07162f,#0B3D91);
      border-radius:26px;
      box-shadow:0 26px 70px rgba(7,22,47,.23);
    }
    .about-page .story-visual::before{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-90px;
      top:-80px;
      border:48px solid rgba(84,242,139,.15);
      border-radius:50%;
    }
    .about-page .visual-label{
      position:relative;
      z-index:1;
      color:#a7c6f5;
      font-size:13px;
      letter-spacing:.12em;
    }
    .about-page .visual-title{
      position:relative;
      z-index:1;
      max-width:340px;
      margin:12px 0 42px;
      font-size:30px;
      font-weight:800;
      line-height:1.35;
    }
    .about-page .signal-card{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      gap:15px;
      margin-top:12px;
      padding:17px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.13);
      border-radius:15px;
      backdrop-filter:blur(7px);
    }
    .about-page .signal-icon{
      width:42px;
      height:42px;
      flex:none;
      display:grid;
      place-items:center;
      color:var(--accent);
      background:rgba(84,242,139,.1);
      border:1px solid rgba(84,242,139,.35);
      border-radius:12px;
      font-weight:900;
    }
    .about-page .signal-card strong{display:block;font-size:15px}
    .about-page .signal-card span{color:#adc3e3;font-size:13px}
    .about-page .service-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .about-page .service-card{
      min-height:250px;
      padding:27px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:0 12px 32px rgba(16,33,61,.05);
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    }
    .about-page .service-card:hover{
      transform:translateY(-6px);
      border-color:#afc8ee;
      box-shadow:0 20px 44px rgba(16,33,61,.1);
    }
    .about-page .service-icon{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#1873dc);
      border-radius:14px;
      box-shadow:0 10px 20px rgba(11,61,145,.2);
      font-weight:800;
    }
    .about-page .service-card h3{margin:20px 0 10px;font-size:20px}
    .about-page .service-card p{margin:0;color:var(--muted);font-size:14px}
    .about-page .timeline{
      position:relative;
      max-width:900px;
      margin:auto;
    }
    .about-page .timeline::before{
      content:"";
      position:absolute;
      top:12px;
      bottom:12px;
      left:23px;
      width:2px;
      background:linear-gradient(var(--primary),var(--accent));
    }
    .about-page .timeline-item{
      position:relative;
      display:grid;
      grid-template-columns:48px 1fr;
      gap:22px;
      padding-bottom:28px;
    }
    .about-page .timeline-item:last-child{padding-bottom:0}
    .about-page .timeline-dot{
      position:relative;
      z-index:1;
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--primary);
      border:6px solid #e9f1ff;
      border-radius:50%;
      font-size:12px;
      font-weight:800;
    }
    .about-page .timeline-card{
      padding:22px 24px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:0 10px 30px rgba(16,33,61,.05);
    }
    .about-page .timeline-card h3{margin:0 0 7px;font-size:19px}
    .about-page .timeline-card p{margin:0;color:var(--muted)}
    .about-page .values-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .about-page .value-card{
      padding:25px 20px;
      text-align:center;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
    }
    .about-page .value-number{
      color:var(--primary);
      font-size:13px;
      font-weight:900;
      letter-spacing:.12em;
    }
    .about-page .value-card h3{margin:10px 0 8px;font-size:19px}
    .about-page .value-card p{margin:0;color:var(--muted);font-size:14px}
    .about-page .risk-panel{
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:35px;
      align-items:center;
      padding:38px;
      color:#fff;
      background:linear-gradient(135deg,#07162f,#0B3D91);
      border-radius:24px;
      box-shadow:var(--shadow);
    }
    .about-page .risk-panel h2{margin:0 0 9px;font-size:29px}
    .about-page .risk-panel p{max-width:790px;margin:0;color:#c8d7ec}
    .about-page .risk-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 21px;
      color:var(--deep);
      background:var(--accent);
      border-radius:11px;
      font-weight:800;
      white-space:nowrap;
    }

    .footer{
      color:#c4d0e0;
      background:#07162f;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr 1fr;
      gap:48px;
      padding:64px 0 45px;
    }
    .footer-logo{color:#fff}
    .footer-logo img{background:#fff}
    .footer-brand p{
      max-width:390px;
      margin:20px 0;
      color:#9eafc5;
      font-size:14px;
    }
    .footer-social{color:#fff}
    .footer h3{
      margin:5px 0 17px;
      color:#fff;
      font-size:16px;
    }
    .footer-links,.footer-contact{display:grid;gap:10px}
    .footer-links a,.footer-contact a{font-size:14px;transition:color .2s ease}
    .footer-links a:hover,.footer-contact a:hover{color:var(--accent)}
    .footer-contact span{color:#7f93ae;font-size:12px}
    .footer-bottom{
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#8395ae;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:13px;
    }

    @media (max-width:1180px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
    }
    @media (max-width:900px){
      .about-page .story-panel{grid-template-columns:1fr}
      .about-page .story-visual{min-height:420px}
      .about-page .service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .about-page .values-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .about-page .trust-strip{grid-template-columns:repeat(2,1fr)}
      .about-page .trust-item:nth-child(2){border-right:0}
      .about-page .trust-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .about-page .risk-panel{grid-template-columns:1fr}
      .about-page .risk-link{justify-self:start}
      .footer-main{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:680px){
      .container{width:min(100% - 28px,1200px)}
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .topbar-contact{width:100%;justify-content:space-between;gap:8px}
      .topbar-contact a{font-size:11px}
      .header-inner{min-height:68px;gap:10px}
      .logo span{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:16px}
      .logo img{width:37px;height:37px}
      .member-entry{display:none}
      .account-btn{min-height:38px;padding:0 12px;font-size:13px}
      .hamburger{width:40px;height:38px}
      .about-page .about-hero{padding:68px 0 78px}
      .about-page .about-hero p{font-size:16px}
      .about-page .hero-points{display:grid}
      .about-page .hero-points span{text-align:center}
      .about-page .trust-strip{margin-top:-26px}
      .about-page .trust-item{padding:18px 10px}
      .about-page .trust-item strong{font-size:19px}
      .about-page .section{padding:68px 0}
      .about-page .story-panel{gap:30px}
      .about-page .story-visual{min-height:430px;padding:22px}
      .about-page .visual-title{font-size:25px}
      .about-page .service-grid,.about-page .values-grid{grid-template-columns:1fr}
      .about-page .service-card{min-height:0}
      .about-page .timeline-item{gap:13px}
      .about-page .timeline-card{padding:18px}
      .about-page .risk-panel{padding:27px 22px}
      .about-page .risk-panel h2{font-size:25px}
      .footer-main{grid-template-columns:1fr;gap:30px;padding:48px 0 35px}
      .footer-bottom{align-items:flex-start;flex-direction:column;justify-content:center;padding:18px 0}
    }