:root{--theme:#0B3D91;--ink:#152033;--muted:#65728a;--line:#e6ebf2;--soft:#f5f8fc;--white:#fff;--accent:#dcae54}
*{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:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.topbar{background:#101a2b;color:#c8d2e2;font-size:13px}
.topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar a{margin-left:20px;color:#e8eef7}
.header{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 4px 16px rgba(21,32,51,.04)}
.header-inner{height:78px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;min-width:190px;font-weight:800;font-size:19px;color:var(--theme)}
.logo img{width:38px;height:38px;object-fit:contain}
.main-nav{flex:1}
.nav-list{display:flex;align-items:stretch;justify-content:center;gap:4px;list-style:none;padding:0;margin:0}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:5px;padding:26px 13px;color:#27344b;font-size:14px;white-space:nowrap}
.nav-link:hover,.nav-link:focus{color:var(--theme)}
.has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);visibility:hidden;opacity:0;background:#fff;border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:0 18px 42px rgba(16,27,47,.15);padding:20px;transition:.2s;min-width:280px}
.mega-menu{width:650px}
.nav-item:after{content:"";position:absolute;top:100%;left:0;right:0;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;transform:translateX(-50%) translateY(0)}
.panel-title{margin:0 0 12px;color:var(--theme);font-weight:800}
.panel-list{display:grid;gap:8px}
.panel-list a{display:block;padding:6px 8px;border-radius:6px;font-size:13px}
.panel-list a:hover{background:var(--soft);color:var(--theme)}
.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.mega-card{display:flex;flex-direction:column;gap:3px;padding:12px;border:1px solid var(--line);border-radius:9px;min-width:0}
.mega-card:hover{border-color:#a9bfdc;background:#f8fbff}
.mega-card img{width:25px;height:25px;object-fit:contain}
.mega-card strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-card small{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-footer{display:block;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--theme);font-weight:700}
.header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
.member,.open-account{padding:8px 13px;border-radius:6px;font-size:13px}
.member{color:var(--theme);border:1px solid #b8c9e2}
.open-account{color:#fff;background:var(--theme)}
.hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}
.hamburger span{display:block;width:23px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
.drawer-overlay{display:none;position:fixed;inset:0;background:rgba(11,20,36,.55);z-index:80}
.drawer-overlay.open{display:block}
.mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(360px,88vw);background:#fff;z-index:90;transform:translateX(100%);transition:.25s;overflow:auto;box-shadow:-10px 0 30px rgba(0,0,0,.15)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid var(--line);font-weight:700}
.drawer-head>a{margin-left:auto;color:var(--theme)}
.drawer-close{border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
.drawer-menu{padding:10px 20px 30px}
.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font:inherit;color:var(--ink);cursor:pointer}
.drawer-group{border-bottom:1px solid var(--line)}
.drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px}
.drawer-toggle.active:after{content:"−"}
.drawer-submenu{display:none;padding:4px 0 8px 14px}
.drawer-submenu.open{display:block}
.drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}
.footer{margin-top:80px;background:#101a2b;color:#b7c3d5}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:52px 0 38px}
.footer-brand{color:#dce6f3}
.footer-brand img{width:42px;height:42px;object-fit:contain;margin-bottom:10px}
.footer-brand strong{display:block;color:#fff;font-size:18px}
.footer h3{margin:0 0 14px;color:#fff;font-size:15px}
.footer-grid>div:not(.footer-brand) a{display:block;margin:7px 0;color:#b7c3d5;font-size:13px}
.footer a:hover{color:#fff}
.footer p{font-size:13px;margin:9px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:12px;color:#8f9eb3}
.about-page{overflow:hidden}
.about-hero{padding:82px 0 76px;background:linear-gradient(135deg,#f3f7fc 0%,#fff 65%);border-bottom:1px solid var(--line)}
.about-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:2px}
.about-kicker:before{content:"";width:28px;height:2px;background:var(--accent)}
.about-hero h1{max-width:780px;margin:18px 0 20px;font-size:clamp(34px,5vw,62px);line-height:1.18;letter-spacing:-1px}
.about-hero p{max-width:700px;margin:0;color:var(--muted);font-size:17px}
.about-hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:7px;font-size:14px;font-weight:700}
.primary-btn{background:var(--theme);color:#fff}
.secondary-btn{border:1px solid #b8c9e2;color:var(--theme);background:#fff}
.about-section{padding:76px 0}
.section-heading{max-width:700px;margin-bottom:30px}
.section-heading span{color:var(--theme);font-size:13px;font-weight:800;letter-spacing:2px}
.section-heading h2{margin:9px 0;font-size:32px;line-height:1.3}
.section-heading p{margin:0;color:var(--muted)}
.about-story{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.story-copy p{color:var(--muted);margin:0 0 16px}
.about-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.fact-card{padding:23px;background:var(--soft);border:1px solid var(--line);border-radius:10px}
.fact-card strong{display:block;color:var(--theme);font-size:28px;line-height:1.2}
.fact-card span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.service-card{padding:25px 20px;border:1px solid var(--line);border-radius:10px;background:#fff;box-shadow:0 8px 24px rgba(21,32,51,.04)}
.service-icon{width:38px;height:38px;display:grid;place-items:center;background:#eaf1fb;border-radius:8px;color:var(--theme);font-weight:800}
.service-card h3{font-size:17px;margin:17px 0 8px}
.service-card p{margin:0;color:var(--muted);font-size:13px}
.about-timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.timeline-card{position:relative;padding:25px;background:#101a2b;color:#fff;border-radius:10px;min-height:190px}
.timeline-card b{color:#e2b45e;font-size:13px}
.timeline-card h3{font-size:19px;margin:15px 0 8px}
.timeline-card p{margin:0;color:#b7c3d5;font-size:13px}
.about-cta{padding:45px 50px;border-radius:12px;background:linear-gradient(120deg,var(--theme),#092b67);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
.about-cta h2{margin:0 0 7px;font-size:27px}
.about-cta p{margin:0;color:#d7e4f7;font-size:14px}
.about-cta .primary-btn{background:#fff;color:var(--theme)}
@media(max-width:1050px){
.main-nav{display:none}.hamburger{display:block}.header-inner{justify-content:space-between}.logo{min-width:0}.footer-grid{grid-template-columns:repeat(2,1fr)}.service-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:700px){
.container{width:min(100% - 28px,1180px)}.topbar .container{display:block;padding:8px 0}.topbar .container>span{display:block}.topbar a{margin:0 14px 0 0}.header-inner{height:68px;gap:10px}.member{display:none}.open-account{padding:7px 10px}.about-hero{padding:58px 0}.about-hero h1{font-size:38px}.about-hero p{font-size:15px}.about-section{padding:52px 0}.about-story{grid-template-columns:1fr;gap:28px}.service-grid,.about-timeline{grid-template-columns:1fr}.about-cta{display:block;padding:30px 24px}.about-cta .primary-btn{margin-top:20px}.footer-grid{grid-template-columns:1fr;gap:26px;padding:38px 0 28px}.mega-menu,.dropdown-panel{display:none}
}