:root{--theme:#0B3D91;--ink:#172235;--muted:#687386;--line:#dfe5ed;--soft:#f4f7fb;--white:#fff;--shadow:0 18px 50px rgba(21,44,78,.10)}
*{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:auto}
.topbar{background:#13233d;color:#cdd7e6;font-size:13px}
.topbar .container{height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar a{color:#eaf0f8;margin-left:18px}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.header-inner{height:76px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;min-width:175px;font-size:18px;font-weight:800;color:#11213b}
.logo img{width:38px;height:38px;object-fit:contain}
.main-nav{flex:1}
.nav-list{display:flex;align-items:center;justify-content:center;gap:3px;margin:0;padding:0;list-style:none}
.nav-item{position:relative}
.nav-link{display:block;padding:25px 13px;font-size:14px;white-space:nowrap;color:#354158}
.nav-link:hover,.nav-link:focus{color:var(--theme)}
.has-arrow:after{content:"⌄";font-size:11px;margin-left:6px;color:#8793a5}
.dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%);width:260px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:60}
.dropdown-panel a{display:block;padding:9px 10px;font-size:13px;border-radius:7px}
.dropdown-panel a:hover{background:var(--soft);color:var(--theme)}
.mega-menu{width:690px;padding:18px}
.nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{opacity:1;visibility:visible;pointer-events:auto}
.nav-item:hover>.dropdown-panel:before,.nav-item:hover>.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mega-card{display:block;padding:10px;border:1px solid #e8edf3;border-radius:10px;transition:.2s}
.mega-card:hover{border-color:#a9bad7;background:#f8fbff}
.mega-card img{width:42px;height:42px;object-fit:contain;border-radius:8px;margin-bottom:7px}
.mega-card strong{display:block;font-size:13px;margin-bottom:4px}
.mega-card small{display:block;color:var(--muted);font-size:11px;line-height:1.6}
.mega-footer{display:inline-block;margin-top:14px;padding:7px 11px;color:var(--theme);font-size:12px;border-radius:6px;background:#edf3fb}
.product-menu{width:690px}
.header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
.member-entry{font-size:13px;color:var(--theme)}
.open-account{padding:8px 15px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px}
.hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);background:#fff;border-radius:7px;padding:8px;cursor:pointer}
.hamburger span{display:block;height:2px;background:var(--ink);margin:5px 0;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;inset:0;background:rgba(5,18,37,.48);opacity:0;visibility:hidden;transition:.25s;z-index:80}
.drawer-overlay.open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;transform:translateX(100%);transition:.28s;z-index:90;overflow:auto;box-shadow:-15px 0 45px rgba(0,0,0,.16)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{height:70px;padding:0 20px;display:flex;align-items:center;gap:15px;border-bottom:1px solid var(--line);font-weight:700}
.drawer-head>a{margin-left:auto;color:var(--theme);font-size:13px}
.drawer-close{border:0;background:transparent;font-size:28px;cursor:pointer;color:#536075}
.drawer-menu{padding:12px 20px 30px}
.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;text-align:left;border:0;border-bottom:1px solid #edf0f4;background:none;font:inherit;color:var(--ink);cursor:pointer}
.drawer-toggle:after{content:"＋";float:right;color:#8090a6}
.drawer-toggle.active{color:var(--theme)}
.drawer-toggle.active:after{content:"－"}
.drawer-submenu{display:none;padding:4px 0 8px 15px}
.drawer-submenu.open{display:block}
.drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}
.footer{margin-top:80px;background:#121e31;color:#b8c4d5;padding:52px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:35px}
.footer h3,.footer h4{margin:0 0 14px;color:#fff}
.footer h3{font-size:20px}
.footer h4{font-size:14px}
.footer p{margin:5px 0;font-size:13px}
.footer-grid>div>a{display:block;margin:6px 0;color:#b8c4d5;font-size:13px}
.footer-grid>div>a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:18px;font-size:12px;color:#8f9caf}
.about-page{background:#fff}
.about-hero{padding:88px 0 76px;background:linear-gradient(135deg,#f2f6fb 0%,#fff 58%);border-bottom:1px solid var(--line)}
.about-hero .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:13px;font-weight:700;letter-spacing:.08em}
.about-hero .eyebrow:before{content:"";width:28px;height:2px;background:var(--theme)}
.about-hero h1{max-width:820px;margin:18px 0 18px;font-size:clamp(34px,5vw,62px);line-height:1.17;letter-spacing:-.04em;color:#13233d}
.about-hero p{max-width:700px;margin:0;color:var(--muted);font-size:17px}
.about-wrap{padding:72px 0}
.section-heading{max-width:710px;margin-bottom:34px}
.section-heading .label{color:var(--theme);font-size:12px;font-weight:800;letter-spacing:.14em}
.section-heading h2{margin:9px 0 10px;font-size:32px;line-height:1.3}
.section-heading p{margin:0;color:var(--muted)}
.about-intro{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:start}
.about-intro p{margin:0 0 16px;color:#59667a}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:42px}
.principle{padding:26px 22px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 12px 30px rgba(21,44,78,.06)}
.principle .number{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#eaf1fb;color:var(--theme);font-weight:800;font-size:13px}
.principle h3{margin:17px 0 8px;font-size:18px}
.principle p{margin:0;color:var(--muted);font-size:14px}
.about-band{padding:68px 0;background:#f5f8fc}
.about-band-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:50px;align-items:center}
.about-band h2{margin:0 0 14px;font-size:31px;line-height:1.3}
.about-band p{margin:0;color:var(--muted)}
.capabilities{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.capability{padding:20px;background:#fff;border:1px solid #e2e8f0;border-radius:12px}
.capability strong{display:block;margin-bottom:5px;color:#1c2d49}
.capability span{font-size:13px;color:var(--muted)}
.trust-section{padding:74px 0 10px}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust-card{padding:24px;border-top:3px solid var(--theme);background:#fff;box-shadow:0 10px 28px rgba(20,43,75,.07)}
.trust-card b{display:block;font-size:27px;color:var(--theme);margin-bottom:6px}
.trust-card span{font-size:13px;color:var(--muted)}
.about-cta{margin-top:72px;padding:36px 40px;border-radius:16px;background:var(--theme);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
.about-cta h2{margin:0 0 6px;font-size:25px}
.about-cta p{margin:0;color:#dbe7f8;font-size:14px}
.about-cta a{display:inline-block;padding:12px 20px;background:#fff;color:var(--theme);border-radius:7px;font-size:14px;font-weight:700;white-space:nowrap}
@media(max-width:1050px){
.main-nav{display:none}.hamburger{display:block}.header-inner{justify-content:space-between}.header-btns{margin-left:auto}
}
@media(max-width:760px){
.container{width:min(100% - 28px,1180px)}.topbar .container{height:auto;min-height:36px;padding:7px 0;align-items:flex-start;flex-direction:column;gap:1px}.topbar a{margin-left:10px}
.logo{min-width:0}.logo span{font-size:15px}.member-entry{display:none}.open-account{padding:7px 11px}
.about-hero{padding:58px 0}.about-hero h1{font-size:39px}.about-hero p{font-size:15px}
.about-wrap{padding:52px 0}.about-intro,.about-band-grid{grid-template-columns:1fr;gap:28px}.principles{grid-template-columns:1fr}.capabilities{grid-template-columns:1fr}.trust-grid{grid-template-columns:repeat(2,1fr)}
.about-cta{margin-top:48px;padding:27px 22px;display:block}.about-cta a{margin-top:20px}.footer{margin-top:55px;padding-top:38px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
}
@media(max-width:430px){.header-inner{height:66px}.open-account{display:none}.trust-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.mega-grid{grid-template-columns:1fr 1fr}}