:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#072b67;
      --theme-light:#eaf1ff;
      --ink:#111827;
      --muted:#667085;
      --line:#dce3ee;
      --surface:#ffffff;
      --soft:#f5f7fb;
      --accent:#ffcf4a;
      --success:#138a60;
      --danger:#d94452;
      --radius:18px;
      --shadow:0 18px 45px rgba(11,61,145,.11);
    }
    *{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}
    body,button,input,textarea{font:inherit}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button{color:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:#081b3b;color:#dbe7ff;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .topbar a{margin-left:22px;color:#fff}
    .topbar a:hover{text-decoration:underline}

    .header{position:relative;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:max-content;font-size:20px;font-weight:900;color:var(--theme)}
    .logo img{width:42px;height:42px;object-fit:contain}
    .main-nav{align-self:stretch;display:flex;align-items:stretch;margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative;display:flex;align-items:stretch}
    .nav-link{display:flex;align-items:center;padding:0 13px;font-size:15px;font-weight:700;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow::after{content:"";width:6px;height:6px;margin:0 0 4px 8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:0;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translateY(10px);
      transition:.18s ease;
      background:#fff;
      border:1px solid var(--line);
      border-top:3px solid var(--theme);
      border-radius:0 0 16px 16px;
      box-shadow:0 24px 50px rgba(13,29,58,.16)
    }
    .dropdown-panel::before,.mega-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .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;
      pointer-events:auto;
      transform:translateY(0)
    }
    .dropdown-panel{width:310px;padding:20px}
    .mega-menu{left:50%;width:min(720px,72vw);padding:22px;display:grid;grid-template-columns:1.25fr .85fr;gap:26px;transform:translate(-50%,10px)}
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .nav-item:nth-last-child(-n+3) .mega-menu{left:auto;right:0;transform:translateY(10px)}
    .nav-item:nth-last-child(-n+3):hover>.mega-menu,
    .nav-item:nth-last-child(-n+3):focus-within>.mega-menu{transform:translateY(0)}
    .panel-title{margin-bottom:12px;color:#18243b;font-size:14px;font-weight:900}
    .panel-link{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #edf0f5;font-size:14px}
    .panel-link:hover{color:var(--theme)}
    .panel-link small{color:var(--muted);white-space:nowrap}
    .mega-section{min-width:0}
    .mega-section p{margin:0 0 16px;color:var(--muted);font-size:14px}
    .mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
    .mega-card{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:5px 10px;padding:11px;border:1px solid #e5eaf2;border-radius:11px;background:#fbfcff}
    .mega-card:hover{border-color:#9db7e8;background:var(--theme-light)}
    .mega-card img{grid-row:1/3;width:34px;height:34px;object-fit:contain}
    .mega-card strong{overflow:hidden;color:#18243b;font-size:14px;text-overflow:ellipsis;white-space:nowrap}
    .mega-card small{grid-column:1/-1;color:var(--muted);font-size:12px;line-height:1.45}
    .mega-card img+strong,.mega-card img~small{grid-column:2}
    .mega-footer{display:inline-flex;margin-top:14px;color:var(--theme);font-size:14px;font-weight:800}
    .mega-footer::after{content:"→";margin-left:6px}

    .header-btns{display:flex;align-items:center;gap:9px;min-width:max-content}
    .member-btn,.open-btn{padding:9px 14px;border-radius:9px;font-size:14px;font-weight:800}
    .member-btn{color:var(--theme);border:1px solid #b9c9e6}
    .open-btn{color:#fff;background:var(--theme);border:1px solid var(--theme)}
    .member-btn:hover{background:var(--theme-light)}
    .open-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:44px;height:42px;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);transition:.2s}
    .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;z-index:90;inset:0;visibility:hidden;opacity:0;background:rgba(5,14,31,.58);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:100;top:0;right:0;width:min(390px,90vw);height:100vh;overflow-y:auto;background:#fff;box-shadow:-20px 0 50px rgba(0,0,0,.2);transform:translateX(105%);transition:.28s ease}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{position:sticky;z-index:2;top:0;min-height:70px;padding:14px 18px;display:flex;align-items:center;gap:12px;color:#fff;background:var(--theme)}
    .drawer-head>a{padding:7px 11px;border:1px solid rgba(255,255,255,.45);border-radius:8px;font-size:14px}
    .drawer-close{margin-left:auto;padding:0;border:0;color:#fff;background:transparent;font-size:34px;line-height:1;cursor:pointer}
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,.drawer-toggle{width:100%;padding:14px 4px;display:flex;align-items:center;justify-content:space-between;border:0;border-bottom:1px solid #e8edf5;background:none;text-align:left;font-weight:800;cursor:pointer}
    .drawer-toggle::after{content:"+";font-size:20px;font-weight:400}
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{display:none;padding:7px 0 10px 14px;border-bottom:1px solid #e8edf5}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:9px 4px;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--theme)}

    .about-page{overflow:hidden;background:#fff}
    .about-page .about-hero{position:relative;padding:92px 0 82px;color:#fff;background:linear-gradient(135deg,#071d43 0%,#0B3D91 58%,#1762c1 100%)}
    .about-page .about-hero::before{content:"";position:absolute;width:430px;height:430px;top:-210px;right:6%;border:1px solid rgba(255,255,255,.2);border-radius:50%;box-shadow:0 0 0 70px rgba(255,255,255,.035),0 0 0 140px rgba(255,255,255,.025)}
    .about-page .about-hero::after{content:"";position:absolute;left:-70px;bottom:-110px;width:250px;height:250px;background:var(--accent);border:3px solid #111827;border-radius:52% 48% 63% 37%;opacity:.92;transform:rotate(18deg)}
    .about-page .hero-inner{position:relative;z-index:1;max-width:850px;margin:auto;text-align:center}
    .about-page .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:17px;padding:7px 13px;border:1px solid rgba(255,255,255,.35);border-radius:999px;background:rgba(255,255,255,.1);font-size:13px;font-weight:800;letter-spacing:.08em}
    .about-page .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
    .about-page h1{margin:0;font-size:clamp(38px,6vw,70px);line-height:1.12;letter-spacing:-.04em}
    .about-page .hero-lead{max-width:720px;margin:22px auto 0;color:#dce9ff;font-size:18px}
    .about-page .hero-points{margin:34px auto 0;display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
    .about-page .hero-points span{padding:9px 15px;border:1px solid rgba(255,255,255,.28);border-radius:10px;background:rgba(6,27,66,.35);font-size:14px;font-weight:700}

    .about-page .section{padding:88px 0}
    .about-page .section-soft{background:var(--soft)}
    .about-page .section-head{max-width:760px;margin:0 auto 44px;text-align:center}
    .about-page .section-kicker{display:block;margin-bottom:9px;color:var(--theme);font-size:13px;font-weight:900;letter-spacing:.14em}
    .about-page .section-head h2{margin:0 0 14px;font-size:clamp(28px,4vw,43px);line-height:1.2}
    .about-page .section-head p{margin:0;color:var(--muted)}

    .about-page .mission-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch}
    .about-page .mission-card{position:relative;padding:38px;border:2px solid #172033;border-radius:24px;background:#fff;box-shadow:10px 10px 0 var(--accent)}
    .about-page .mission-card h2{margin:0 0 17px;font-size:36px;line-height:1.2}
    .about-page .mission-card p{margin:0 0 16px;color:var(--muted)}
    .about-page .mission-card strong{color:var(--theme)}
    .about-page .principle-list{display:grid;gap:14px}
    .about-page .principle-item{padding:22px;display:grid;grid-template-columns:48px 1fr;gap:16px;border:1px solid var(--line);border-radius:17px;background:#fff}
    .about-page .principle-no{width:48px;height:48px;display:grid;place-items:center;color:#fff;background:var(--theme);border-radius:13px;font-weight:900}
    .about-page .principle-item:nth-child(2) .principle-no{color:#172033;background:var(--accent)}
    .about-page .principle-item:nth-child(3) .principle-no{background:var(--success)}
    .about-page .principle-item h3{margin:0 0 4px;font-size:18px}
    .about-page .principle-item p{margin:0;color:var(--muted);font-size:14px}

    .about-page .service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
    .about-page .service-card{position:relative;min-height:265px;padding:27px;border:1px solid var(--line);border-radius:20px;background:#fff;transition:.22s}
    .about-page .service-card:hover{border-color:#9ab3df;box-shadow:var(--shadow);transform:translateY(-5px)}
    .about-page .service-icon{width:54px;height:54px;margin-bottom:30px;display:grid;place-items:center;border:2px solid #172033;border-radius:15px;background:var(--accent);font-size:25px;font-weight:900}
    .about-page .service-card:nth-child(2) .service-icon{color:#fff;background:#558de0}
    .about-page .service-card:nth-child(3) .service-icon{color:#fff;background:#20a77a}
    .about-page .service-card:nth-child(4) .service-icon{color:#fff;background:#d95d68}
    .about-page .service-card h3{margin:0 0 10px;font-size:20px}
    .about-page .service-card p{margin:0;color:var(--muted);font-size:14px}
    .about-page .service-card a{position:absolute;left:27px;bottom:24px;color:var(--theme);font-size:14px;font-weight:900}

    .about-page .process-wrap{position:relative}
    .about-page .process-line{position:absolute;left:10%;right:10%;top:40px;height:3px;background:linear-gradient(90deg,var(--theme),#4b86db,var(--accent),var(--success))}
    .about-page .process-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .about-page .process-step{text-align:center}
    .about-page .step-dot{width:82px;height:82px;margin:0 auto 22px;display:grid;place-items:center;border:3px solid #fff;border-radius:50%;color:#fff;background:var(--theme);box-shadow:0 0 0 4px var(--theme-light);font-size:22px;font-weight:900}
    .about-page .process-step:nth-child(2) .step-dot{background:#4b86db}
    .about-page .process-step:nth-child(3) .step-dot{color:#172033;background:var(--accent)}
    .about-page .process-step:nth-child(4) .step-dot{background:var(--success)}
    .about-page .process-step h3{margin:0 0 7px;font-size:18px}
    .about-page .process-step p{margin:0;color:var(--muted);font-size:14px}

    .about-page .trust-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:30px;align-items:center}
    .about-page .trust-statement{padding:38px;border-radius:24px;color:#fff;background:#0a244e}
    .about-page .trust-statement h2{margin:0 0 15px;font-size:34px;line-height:1.25}
    .about-page .trust-statement p{margin:0 0 22px;color:#d7e5fd}
    .about-page .trust-statement a{display:inline-flex;padding:12px 18px;border-radius:10px;color:#172033;background:var(--accent);font-weight:900}
    .about-page .trust-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}
    .about-page .trust-item{padding:23px;border:1px solid var(--line);border-radius:17px;background:#fff}
    .about-page .trust-item::before{content:"✓";width:29px;height:29px;margin-bottom:14px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--success);font-weight:900}
    .about-page .trust-item h3{margin:0 0 6px;font-size:17px}
    .about-page .trust-item p{margin:0;color:var(--muted);font-size:14px}

    .about-page .risk-box{padding:32px 35px;display:grid;grid-template-columns:auto 1fr;gap:22px;border:2px solid #172033;border-radius:20px;background:#fff8dc;box-shadow:8px 8px 0 #172033}
    .about-page .risk-mark{width:55px;height:55px;display:grid;place-items:center;border:2px solid #172033;border-radius:50%;background:var(--accent);font-size:28px;font-weight:900}
    .about-page .risk-box h2{margin:0 0 8px;font-size:24px}
    .about-page .risk-box p{margin:0;color:#525866}

    .about-page .about-cta{padding:0 0 90px}
    .about-page .cta-panel{position:relative;padding:54px 44px;overflow:hidden;border-radius:26px;color:#fff;background:linear-gradient(120deg,var(--theme-dark),var(--theme))}
    .about-page .cta-panel::after{content:"";position:absolute;width:190px;height:190px;right:-35px;bottom:-90px;border:34px solid var(--accent);border-radius:50%}
    .about-page .cta-panel h2{position:relative;z-index:1;max-width:720px;margin:0 0 12px;font-size:clamp(28px,4vw,42px);line-height:1.2}
    .about-page .cta-panel p{position:relative;z-index:1;max-width:700px;margin:0 0 24px;color:#dbe8ff}
    .about-page .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
    .about-page .cta-actions a{padding:12px 18px;border-radius:10px;font-weight:900}
    .about-page .cta-primary{color:#172033;background:var(--accent)}
    .about-page .cta-secondary{border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.08)}

    .footer{padding:62px 0 0;color:#cbd7eb;background:#07162f}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:42px}
    .footer-brand{display:inline-block;margin-bottom:12px;color:#fff;font-size:24px;font-weight:900}
    .footer h3{margin:0 0 15px;color:#fff;font-size:16px}
    .footer p{margin:0 0 10px;color:#9fb0ca;font-size:14px}
    .footer-grid>div>a:not(.footer-brand){display:block;margin:0 0 10px;color:#cbd7eb;font-size:14px}
    .footer-grid>div>a:hover{color:#fff}
    .footer-bottom{margin-top:42px;padding:20px 0;border-top:1px solid rgba(255,255,255,.11);color:#899bb8;font-size:13px;text-align:center}

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .about-page .service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:800px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{padding:8px 0;align-items:flex-start;flex-direction:column;gap:3px}
      .topbar a{margin:0 15px 0 0}
      .header-inner{min-height:70px;gap:12px}
      .logo span{font-size:17px}
      .logo img{width:37px;height:37px}
      .member-btn{display:none}
      .open-btn{padding:8px 11px}
      .about-page .about-hero{padding:70px 0}
      .about-page .section{padding:65px 0}
      .about-page .mission-grid,.about-page .trust-grid{grid-template-columns:1fr}
      .about-page .process-line{display:none}
      .about-page .process-grid{grid-template-columns:repeat(2,1fr);gap:34px 18px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:560px){
      .topbar span:last-child{display:flex;flex-wrap:wrap}
      .open-btn{display:none}
      .about-page .hero-lead{font-size:16px}
      .about-page .mission-card{padding:27px;box-shadow:6px 6px 0 var(--accent)}
      .about-page .mission-card h2{font-size:29px}
      .about-page .principle-item{padding:18px;grid-template-columns:42px 1fr}
      .about-page .principle-no{width:42px;height:42px}
      .about-page .service-grid,.about-page .process-grid,.about-page .trust-list{grid-template-columns:1fr}
      .about-page .service-card{min-height:245px}
      .about-page .risk-box{padding:25px;grid-template-columns:1fr;box-shadow:5px 5px 0 #172033}
      .about-page .cta-panel{padding:38px 25px}
      .footer-grid{grid-template-columns:1fr;gap:30px}
    }