:root{--blue:#0B3D91;--ink:#14213d;--muted:#68758b;--line:#e5eaf2;--bg:#f5f8fc;--white:#fff}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);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:#092d6b;color:#dce8ff;font-size:13px}.topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between}.topbar-links{display:flex;gap:22px}.topbar a{color:#dce8ff}
    .header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:30}.header-inner{height:76px;display:flex;align-items:center;gap:34px}.logo{display:flex;align-items:center;gap:10px;color:var(--blue);font-weight:800;white-space:nowrap}.logo img{width:34px;height:34px;object-fit:contain}.logo span{font-size:19px}.main-nav{flex:1}.nav-list{display:flex;align-items:center;justify-content:center;gap:5px;list-style:none;margin:0;padding:0}.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:5px;padding:25px 13px;font-size:14px;font-weight:600;white-space:nowrap}.nav-link:hover,.nav-link:focus{color:var(--blue)}.arrow{width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-4px}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px #102b581c;border-radius:0 0 12px 12px;opacity:0;visibility:hidden;transition:.2s;z-index:50}.dropdown-panel{width:260px;padding:12px}.dropdown-panel a,.mega-list a{display:block;padding:8px 10px;font-size:13px}.dropdown-panel a:hover,.mega-list a:hover{background:#f0f5ff;color:var(--blue)}.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}.mega-menu{width:760px;padding:22px}.mega-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:24px}.mega-title{font-size:12px;color:var(--blue);font-weight:800;margin:0 0 9px;border-left:3px solid var(--blue);padding-left:8px}.mega-broker,.mega-video{display:flex;gap:9px;align-items:center;padding:7px;border-radius:8px}.mega-broker:hover,.mega-video:hover{background:#f3f7fd}.mega-broker img,.mega-video img{width:32px;height:32px;object-fit:cover;border-radius:6px}.mega-video img{width:74px;height:42px}.mega-broker strong,.mega-video strong{display:block;font-size:12px}.mega-broker small,.mega-video small,.mega-list small{display:block;color:var(--muted);font-size:11px}.mega-footer{display:block;border-top:1px solid var(--line);margin-top:15px;padding-top:12px;color:var(--blue);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px}.member-entry{font-size:13px;color:var(--blue);font-weight:700}.open-account{background:var(--blue);color:#fff;padding:8px 15px;border-radius:7px;font-size:13px}.hamburger{display:none;border:0;background:none;padding:8px;cursor:pointer}.hamburger span{display:block;width:23px;height:2px;background:var(--ink);margin:4px}
    .drawer-overlay{display:none}.mobile-drawer{position:fixed;z-index:80;right:-360px;top:0;width:min(350px,88vw);height:100vh;background:#fff;transition:.3s;overflow:auto;box-shadow:-10px 0 35px #061a3b30}.mobile-drawer.open{right:0}.drawer-overlay.open{display:block;position:fixed;z-index:70;inset:0;background:#08172c88}.drawer-head{display:flex;align-items:center;gap:15px;padding:20px;border-bottom:1px solid var(--line);font-weight:700;color:var(--blue)}.drawer-head a{margin-left:auto;background:var(--blue);color:#fff;border-radius:5px;padding:5px 11px;font-size:12px}.drawer-close{border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}.drawer-menu{padding:12px 20px}.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-toggle:after{content:"＋";float:right;color:var(--blue)}.drawer-toggle.active:after{content:"－"}.drawer-submenu{display:none;padding:5px 0 8px 15px}.drawer-submenu.open{display:block}.drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}
    .article-page{padding:45px 0 70px}.article-wrap{width:min(900px,100%);margin:auto}.article-head{text-align:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:35px 35px 27px}.article-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:1px}.article-title{font-size:clamp(28px,4vw,44px);line-height:1.3;margin:13px 0 17px;color:#102752}.article-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}.article-tags{margin-top:17px;color:var(--blue);font-size:13px}.article-cover{margin:25px 0;border-radius:14px;overflow:hidden;background:#eaf0f8}.article-cover img{width:100%;max-height:440px;object-fit:cover}.article-body{background:#fff;border:1px solid var(--line);border-radius:16px;padding:clamp(22px,5vw,52px);min-width:0;max-width:100%;overflow-x:auto}.article-body img,.article-body table{max-width:100%}.article-body h2,.article-body h3{color:#102e65;line-height:1.4}.article-body p{margin:0 0 1.2em}.article-body blockquote{border-left:4px solid var(--blue);background:#f1f6ff;padding:14px 18px;margin:22px 0;color:#42516b}.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:22px}.article-nav a,.related-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:15px}.article-nav small{display:block;color:var(--muted);font-size:12px}.article-nav strong{display:block;margin-top:4px}.related{margin-top:35px}.section-title{font-size:23px;margin:0 0 15px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.related-card{font-weight:700;font-size:14px}.related-card small{display:block;color:var(--muted);font-weight:400;margin-top:7px}
    .footer{background:#0b1c39;color:#d7e1f2}.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding:48px 0}.footer .logo{color:#fff}.footer-brand p{color:#9fb0ca;font-size:13px;max-width:260px}.footer h3{font-size:14px;color:#fff;margin:0 0 14px}.footer-links{display:grid;gap:7px;color:#aebdd3;font-size:13px}.footer-links a:hover{color:#fff}.footer-contact{display:grid;gap:8px;color:#aebdd3;font-size:13px}.footer-bottom{border-top:1px solid #ffffff1a;padding:16px 0;color:#91a3bf;font-size:12px}
    @media(max-width:980px){.main-nav{display:none}.header-inner{justify-content:space-between}.hamburger{display:block}.mega-menu{display:none}.footer-main{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:600px){.container{width:min(100% - 28px,1180px)}.topbar .container{padding:8px 0;display:block}.topbar-links{gap:12px;margin-top:3px}.header-inner{height:66px}.member-entry{display:none}.article-page{padding:25px 0 45px}.article-head{padding:25px 17px}.article-body{padding:22px 18px}.article-nav,.related-grid{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr;padding:35px 0}.footer-brand p{max-width:none}}