:root{--theme:#0B3D91;--ink:#14213d;--muted:#6b7890;--line:#e4e9f1;--soft:#f5f8fc;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.6}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#101b35;color:#ccd6e8;font-size:13px}
    .topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#d9e4f7}
    .header{position:relative;z-index:20;background:var(--white);border-bottom:1px solid var(--line)}
    .header-inner{height:76px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--ink);font-size:19px;font-weight:800}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:5px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;height:76px;padding:0 14px;font-size:15px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;margin:0 0 3px 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:50%;transform:translateX(-50%);opacity:0;visibility:hidden;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px #1827461c;border-radius:0 0 14px 14px;transition:.2s}
    .dropdown-panel{width:290px;padding:20px}
    .mega-menu{width:760px;padding:25px}
    .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}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .dropdown-title,.mega-title{margin:0 0 13px;color:var(--theme);font-size:13px;font-weight:800}
    .dropdown-list{display:grid;gap:9px}
    .dropdown-list a{font-size:14px;padding-bottom:8px;border-bottom:1px solid var(--line)}
    .dropdown-list a:hover,.mega-links a:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
    .mega-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .mega-card{display:flex;gap:9px;min-width:0;padding:9px;border:1px solid var(--line);border-radius:9px;background:#fbfcff}
    .mega-card:hover{border-color:#a9bfe2;background:#f3f7ff}
    .mega-card img{width:35px;height:35px;object-fit:cover;border-radius:7px;background:#edf2f9;flex:none}
    .mega-card>span{min-width:0;display:grid;gap:1px}
    .mega-card strong,.mega-card span span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card strong{font-size:12px}.mega-card span span{color:var(--muted);font-size:11px}
    .mega-links{display:grid;grid-template-columns:1fr 1fr;gap:9px}
    .mega-links a{font-size:13px}
    .mega-footer{display:inline-block;margin-top:18px;color:var(--theme);font-weight:700;font-size:13px}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .member-link{font-size:13px;color:var(--theme);font-weight:700}
    .account-link{padding:9px 16px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .hamburger{display:none;width:40px;height:40px;padding:9px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
    .hamburger span{display:block;height:2px;margin:4px 0;background:var(--ink);transition:.2s}
    .hamburger.active span:first-child{transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:last-child{transform:translateY(-6px) rotate(-45deg)}
    .drawer-overlay{position:fixed;z-index:40;inset:0;background:#09152c99;opacity:0;visibility:hidden;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;z-index:50;top:0;right:0;width:min(380px,88%);height:100vh;overflow:auto;background:#fff;transform:translateX(105%);transition:.3s;box-shadow:-10px 0 30px #07142c26}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:16px;padding:20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head span{flex:1}.drawer-head a{color:var(--theme)}
    .drawer-close{border:0;background:none;font-size:28px;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:12px 20px 35px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font:inherit;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:4px 0 7px 14px}
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{padding:8px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:80px;padding:48px 0 18px;background:#101b35;color:#c4cee0}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand strong{display:block;color:#fff;font-size:20px;margin-bottom:10px}
    .footer-brand p{margin:0;color:#9eabc2;font-size:13px;max-width:300px}
    .footer h3{margin:0 0 14px;color:#fff;font-size:14px}
    .footer-links{display:grid;gap:7px;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:35px;padding-top:18px;border-top:1px solid #ffffff1c;color:#8492ac;font-size:12px}
    .tag-index-page{padding:64px 0 10px}
    .page-heading{text-align:center;margin-bottom:38px}
    .eyebrow{display:inline-block;margin-bottom:11px;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:2px}
    .page-heading h1{margin:0;font-size:clamp(32px,5vw,52px);letter-spacing:-1px}
    .page-heading p{max-width:620px;margin:13px auto 0;color:var(--muted);font-size:15px}
    .tag-panel{position:relative;overflow:hidden;padding:45px 42px;border:1px solid #dfe6f0;border-radius:24px;background:linear-gradient(135deg,#fff 0%,#f1f6fd 100%);box-shadow:0 20px 55px #0b3d9112}
    .tag-panel:before,.tag-panel:after{content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none}
    .tag-panel:before{width:240px;height:240px;right:-75px;top:-100px;background:#dce9fb}
    .tag-panel:after{width:180px;height:180px;left:-90px;bottom:-100px;background:#e7eef9}
    .tag-cloud{position:relative;z-index:1;display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:14px 16px}
    .tag-cloud a{display:inline-flex;align-items:center;padding:10px 18px;border:1px solid #d8e2f1;border-radius:999px;background:#fff;color:#315074;font-size:15px;box-shadow:0 5px 15px #17345e0d;transition:.2s}
    .tag-cloud a:nth-child(3n){font-size:20px;color:var(--theme);font-weight:800}
    .tag-cloud a:nth-child(4n){font-size:13px}
    .tag-cloud a:hover{transform:translateY(-4px);color:#fff;background:var(--theme);border-color:var(--theme);box-shadow:0 9px 20px #0b3d9135}
    .tag-note{position:relative;z-index:1;margin:36px auto 0;padding-top:23px;border-top:1px solid #dce5f1;text-align:center;color:var(--muted);font-size:13px}
    @media(max-width:1050px){.header-inner{gap:15px}.nav-link{padding:0 8px}.logo{min-width:155px}.member-link{display:none}}
    @media(max-width:780px){.container{width:min(100% - 28px,600px)}.topbar-inner{height:auto;min-height:38px;gap:8px}.topbar-links{gap:10px}.topbar-links a:first-child{display:none}.header-inner{height:66px}.main-nav{display:none}.header-btns{margin-left:auto}.hamburger{display:block}.mega-menu{display:none}.account-link{padding:8px 11px}.tag-index-page{padding-top:42px}.tag-panel{padding:30px 17px;border-radius:18px}.tag-cloud{gap:10px}.tag-cloud a{padding:8px 13px;font-size:13px}.tag-cloud a:nth-child(3n){font-size:17px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:grid}}
    @media(max-width:460px){.topbar-inner{font-size:11px}.logo{font-size:16px;min-width:0}.logo img{width:30px;height:30px}.footer-grid{grid-template-columns:1fr}.page-heading h1{font-size:34px}}