:root{--theme:#0B3D91;--ink:#1d2024;--paper:#f5f0e6;--line:#d9d1c3;--red:#b3262d;--muted:#6e6a63;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fbfaf7;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:var(--ink);color:#e9e3d7;font-size:13px}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between}
    .topbar-contact{display:flex;gap:22px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:210px;font-family:Georgia,"Microsoft YaHei",serif;font-weight:700;font-size:20px}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:4px;padding:0;margin:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;height:78px;padding:0 15px;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--red)}
    .has-arrow:after{content:"";width:6px;height:6px;margin:0 0 4px 8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;width:350px;padding:24px;background:#fff;border:1px solid var(--line);box-shadow:0 16px 40px #1d20241c;opacity:0;visibility:hidden;transform:translate(-50%,8px);transition:.2s;z-index:30}
    .mega-menu{width:min(880px,calc(100vw - 40px))}
    .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;transform:translate(-50%,0)}
    .nav-item>.dropdown-panel:before,.nav-item>.mega-menu:before{content:"";position:absolute;left:0;right:0;height:12px;top:-12px}
    .panel-title,.mega-section h3{margin:0 0 14px;font-family:Georgia,"Microsoft YaHei",serif}
    .panel-title{font-size:18px}
    .dropdown-list,.mega-list{display:grid;gap:8px}
    .dropdown-list>a,.mega-list>a{padding:8px 0;border-bottom:1px solid #eee7dc;font-size:14px}
    .dropdown-list>a:hover,.mega-list>a:hover{color:var(--red)}
    .mega-columns{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:26px}
    .mega-section h3{font-size:16px}
    .mega-section p{margin:0 0 18px;color:var(--muted);font-size:13px}
    .mega-meta{display:block;color:var(--muted);font-size:11px;font-weight:400}
    .broker-mega-card,.video-mega-card,.product-mega-card{display:flex!important;gap:10px;align-items:center}
    .broker-mega-card img,.video-mega-card img,.product-mega-card img{width:36px;height:36px;object-fit:cover;border-radius:4px;background:#f1eee7}
    .mega-footer{display:inline-block!important;color:var(--red);font-weight:700;border:0!important}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .member-link{color:var(--theme);font-size:14px}
    .account-link{background:var(--theme);color:#fff;padding:8px 15px;font-size:13px}
    .hamburger{display:none;width:40px;height:40px;padding:9px;border:1px solid var(--line);background:#fff;cursor:pointer}
    .hamburger span{display:block;height:2px;margin:5px 0;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;inset:0;background:#111a;opacity:0;visibility:hidden;transition:.2s;z-index:40}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(360px,88vw);background:#fff;transform:translateX(100%);transition:.25s;z-index:41;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{height:70px;display:flex;align-items:center;gap:14px;padding:0 20px;border-bottom:1px solid var(--line);font-weight:700}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:14px 20px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;text-align:left;border:0;border-bottom:1px solid #eee7dc;background:none;font:inherit;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--muted)}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:4px 0 8px 16px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:72px;background:var(--ink);color:#e8e2d7}
    .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding:54px 0 42px}
    .footer h2,.footer h3{margin:0 0 16px;color:#fff;font-family:Georgia,"Microsoft YaHei",serif}
    .footer h2{font-size:22px}.footer h3{font-size:15px}
    .footer p{margin:0;color:#bdb8ae;font-size:13px;max-width:290px}
    .footer-links{padding:0;margin:0;list-style:none;display:grid;gap:7px;color:#bdb8ae;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid #ffffff1c;color:#9f9a91;font-size:12px}
    .article-page{padding:56px 0 0}
    .article-kicker{display:flex;align-items:center;gap:12px;color:var(--red);font-size:13px;font-weight:700}
    .article-kicker:before{content:"";width:28px;height:2px;background:var(--red)}
    .article-head{max-width:860px;margin:16px auto 38px;text-align:center}
    .article-head h1{margin:0 0 20px;font-family:Georgia,"Microsoft YaHei",serif;font-size:clamp(30px,5vw,54px);line-height:1.22;letter-spacing:0}
    .article-summary{margin:0 auto 18px;max-width:720px;color:var(--muted);font-size:16px}
    .article-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}
    .article-meta strong{color:var(--ink);font-weight:500}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:48px;align-items:start}
    .article-cover{width:100%;max-height:430px;object-fit:cover;background:var(--paper)}
    .article-content{min-width:0;max-width:100%;overflow-x:auto;margin-top:32px;font-size:16px}
    .article-content p{margin:0 0 1.25em}
    .article-content h2,.article-content h3{font-family:Georgia,"Microsoft YaHei",serif;line-height:1.35;margin:1.8em 0 .7em}
    .article-content h2{font-size:26px;border-left:4px solid var(--red);padding-left:12px}
    .article-content h3{font-size:21px}
    .article-content img,.article-content table{max-width:100%;height:auto}
    .article-content blockquote{margin:24px 0;padding:15px 20px;background:var(--paper);border-left:3px solid var(--theme);color:#514e48}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px;padding-top:20px;border-top:1px solid var(--line)}
    .article-tags a{padding:4px 10px;background:var(--paper);color:var(--muted);font-size:12px}
    .article-sidebar{position:sticky;top:24px;border-top:3px solid var(--ink);padding-top:16px}
    .article-sidebar h2{margin:0 0 15px;font-size:18px;font-family:Georgia,"Microsoft YaHei",serif}
    .article-sidebar ol{padding:0;margin:0;list-style:none;counter-reset:side}
    .article-sidebar li{counter-increment:side;border-bottom:1px solid var(--line);padding:13px 0}
    .article-sidebar li:before{content:counter(side,decimal-leading-zero);display:block;color:var(--red);font:700 12px Georgia}
    .article-sidebar a{font-size:14px;line-height:1.5}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .article-nav a{display:block;padding:18px 0;font-size:14px}
    .article-nav a:last-child{text-align:right;border-left:1px solid var(--line);padding-left:20px}
    .article-nav small{display:block;color:var(--muted);font-size:12px;margin-bottom:3px}
    @media(max-width:900px){
      .main-nav{display:none}.hamburger{display:block}.header-inner{height:68px}.nav-link{height:68px}
      .logo{min-width:0;flex:1}.member-link{display:none}.mega-columns{grid-template-columns:1fr 1fr}
      .article-layout{grid-template-columns:1fr}.article-sidebar{position:static}
      .footer-main{grid-template-columns:1fr 1fr}
    }
    @media(max-width:600px){
      .container{width:min(100% - 28px,1180px)}.topbar-inner{padding:7px 0;align-items:flex-start;gap:8px}.topbar-contact{gap:8px;flex-direction:column;text-align:right}
      .account-link{display:none}.mega-columns{grid-template-columns:1fr}.article-page{padding-top:35px}.article-head{text-align:left;margin-bottom:28px}.article-kicker{justify-content:flex-start}
      .article-meta{justify-content:flex-start;gap:8px 15px}.article-layout{gap:28px}.article-content{font-size:15px}
      .article-nav{grid-template-columns:1fr}.article-nav a:last-child{text-align:left;border-left:0;border-top:1px solid var(--line);padding-left:0}
      .footer-main{grid-template-columns:1fr;gap:28px;padding:38px 0 30px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }