:root{--主题色:#0B3D91;--深靛:#071b49;--海浪:#2d8fd5;--浅底:#f4f8fc;--边框:#dce7f3;--文字:#17253d;--次文:#64748b}
*{box-sizing:border-box}html,body{margin:0;padding:0;color:var(--文字);font-family:"Microsoft YaHei","Noto Sans SC",Arial,sans-serif;background:var(--浅底);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 36px));margin:auto}
.topbar{background:var(--深靛);color:#dceaff;font-size:13px}.topbar-inner{min-height:34px;display:flex;justify-content:space-between;align-items:center}.topbar-right{display:flex;gap:20px}.header{height:78px;background:#fff;border-bottom:1px solid var(--边框);position:relative;z-index:20}.header-inner{height:100%;display:flex;align-items:center;gap:34px}.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--深靛);white-space:nowrap}.logo img{width:38px;height:38px;object-fit:contain}.main-nav{flex:1}.nav-list{display:flex;list-style:none;margin:0;padding:0;justify-content:center;gap:4px}.nav-item{position:relative}.nav-link{display:block;padding:26px 15px;font-size:15px;font-weight:600}.nav-link:hover{color:var(--主题色)}.has-arrow:after{content:"⌄";font-size:12px;margin-left:5px}.dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--边框);box-shadow:0 18px 45px #0824521c;border-radius:0 0 14px 14px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;padding:18px;z-index:30}.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{width:280px}.dropdown-panel a{display:block;padding:9px 10px;border-bottom:1px solid #edf2f7;font-size:14px}.mega-menu{width:760px}.mega-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--边框);padding:0 2px 12px;margin-bottom:13px}.mega-heading strong{color:var(--深靛)}.mega-heading a,.mega-footer{color:var(--主题色);font-size:13px}.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.mega-card{display:flex;gap:10px;padding:10px;border:1px solid #e7eef7;border-radius:9px;background:#fbfdff}.mega-card img{width:42px;height:42px;object-fit:contain;border-radius:7px}.mega-card span{min-width:0}.mega-card b,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mega-card b{font-size:14px}.mega-card small{font-size:11px;color:var(--次文)}.mega-footer{display:block;border-top:1px solid var(--边框);margin-top:14px;padding-top:12px}.header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}.member-link{color:var(--主题色);font-size:14px}.open-account{background:var(--主题色);color:#fff;padding:8px 15px;border-radius:7px;font-size:14px}.hamburger{display:none;border:0;background:none;padding:5px}.hamburger span{display:block;width:24px;height:2px;background:var(--深靛);margin:5px 0;transition:.2s}.mobile-drawer{position:fixed;top:0;right:-360px;width:min(360px,88vw);height:100vh;background:#fff;z-index:60;transition:.3s;overflow:auto}.mobile-drawer.open{right:0}.drawer-overlay{position:fixed;inset:0;background:#03122e88;opacity:0;visibility:hidden;z-index:50;transition:.3s}.drawer-overlay.open{opacity:1;visibility:visible}.drawer-head{display:flex;align-items:center;gap:18px;padding:20px;border-bottom:1px solid var(--边框);font-weight:700}.drawer-head a{margin-left:auto;color:var(--主题色)}.drawer-close{font-size:27px;border:0;background:none}.drawer-menu{padding:12px 20px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf2f7;background:none;text-align:left;font:inherit;color:var(--文字)}.drawer-toggle:after{content:"＋";float:right;color:var(--主题色)}.drawer-toggle.active:after{content:"－"}.drawer-submenu{display:none;padding:4px 0 7px 15px}.drawer-submenu.open{display:block}.drawer-submenu a{display:block;padding:8px 0;color:var(--次文);font-size:14px}
.article-page{padding:54px 0 76px}.article-wrap{max-width:900px;margin:auto;background:#fff;border:1px solid var(--边框);border-radius:18px;padding:clamp(24px,5vw,58px);box-shadow:0 14px 35px #0b3d910c}.article-breadcrumb{color:var(--主题色);font-size:14px;margin-bottom:15px}.article-title{font-size:clamp(30px,5vw,52px);line-height:1.22;color:var(--深靛);margin:0 0 18px}.article-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--次文);font-size:14px;border-bottom:1px solid var(--边框);padding-bottom:22px}.article-cover{margin:28px 0;border-radius:12px;max-height:480px;width:100%;object-fit:cover}.article-body{min-width:0;max-width:100%;overflow-x:auto;color:#293b56;font-size:16px}.article-body img,.article-body table{max-width:100%;height:auto}.article-body h2,.article-body h3{color:var(--深靛);margin-top:30px}.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--海浪);background:#eef7ff;color:#31516e}.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}.article-tags a{background:#edf5ff;color:var(--主题色);padding:4px 11px;border-radius:20px;font-size:13px}.article-pager{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:35px;padding-top:22px;border-top:1px solid var(--边框)}.article-pager a{padding:14px;background:#f5f9fd;border-radius:10px;color:var(--主题色)}.article-pager a:last-child{text-align:right}.like-articles{margin-top:42px}.like-articles h2{color:var(--深靛)}.like-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.like-card{border:1px solid var(--边框);border-radius:10px;padding:14px;background:#fff}.like-card strong{display:block;line-height:1.45}.like-card small{color:var(--次文)}
.footer{background:var(--深靛);color:#d8e6fb;padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}.footer-brand{font-size:21px;color:#fff;font-weight:800;margin-bottom:10px}.footer h3{color:#fff;font-size:15px;margin:0 0 12px}.footer p{margin:6px 0;color:#adc3df;font-size:13px}.footer-grid>div>a{display:block;color:#adc3df;font-size:13px;margin:6px 0}.footer-bottom{border-top:1px solid #29436d;margin-top:30px;padding-top:18px;color:#9db4d3;font-size:12px}
@media(max-width:900px){.main-nav{display:none}.hamburger{display:block}.header-inner{justify-content:space-between}.header-btns{margin-left:auto}.mega-menu{width:calc(100vw - 40px)}.article-page{padding-top:25px}.like-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.topbar-inner{padding:7px 0;display:block}.topbar-right{gap:12px;margin-top:3px}.open-account,.member-link{display:none}.article-wrap{padding:23px 18px;border-radius:12px}.article-title{font-size:31px}.article-pager,.like-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.mega-grid{grid-template-columns:1fr}}