:root {
    --bg:#f5f8fc;
    --bg-soft:#eef4fb;
    --surface:#ffffff;
    --line:rgba(35,73,118,.12);
    --line-strong:rgba(35,73,118,.20);
    --text:#14243a;
    --muted:#667991;
    --primary:#2bbfa5;
    --primary-2:#3a8df5;
    --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:linear-gradient(180deg,#fbfdff 0%,#f5f8fc 58%,#fff 100%);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}button,input,textarea,select{font:inherit}.neo-container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
.neo-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);box-shadow:0 8px 28px rgba(47,82,125,.06);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.neo-nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.neo-brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;color:#17304d}.neo-brand-mark{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#28c2a7,#3a8df5);box-shadow:0 8px 22px rgba(58,141,245,.16)}.neo-brand-mark svg{width:22px;height:22px}.neo-menu{display:flex;align-items:center;gap:8px;margin-left:auto}.neo-menu a{padding:10px 14px;border-radius:7px;color:#51667f;font-size:14px;transition:.2s ease}.neo-menu a:hover,.neo-menu a.active{color:#1b4d83;background:#edf5ff}.neo-nav-action{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border:1px solid rgba(43,191,165,.28);border-radius:8px;background:#edfbf8;color:#167f77;font-size:14px;font-weight:700}.neo-menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;color:#274666;cursor:pointer}.neo-menu-toggle span,.neo-menu-toggle:before,.neo-menu-toggle:after{content:"";display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;background:currentColor}

.article-main{padding-top:78px}.article-hero{padding:78px 0 44px;position:relative;overflow:hidden;border-bottom:1px solid rgba(35,73,118,.06)}.article-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(56,105,160,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(56,105,160,.035) 1px,transparent 1px);background-size:36px 36px;mask-image:linear-gradient(to bottom,#000,transparent);pointer-events:none}.article-hero .neo-container{position:relative}.article-hero h1{margin:0 0 10px;font-size:clamp(36px,5vw,58px);line-height:1.15;letter-spacing:-.04em;color:#132d4a}.article-hero p{max-width:720px;margin:0;color:var(--muted);font-size:16px}.article-hero-small{padding:60px 0 32px}.article-hero-small h1{font-size:clamp(32px,4vw,46px)}
.article-category-nav{display:flex;flex-wrap:wrap;gap:8px;padding:24px 0 0}.article-category-nav a{padding:8px 13px;border:1px solid var(--line);border-radius:6px;background:rgba(255,255,255,.78);color:#5b7089;font-size:13px;font-weight:700}.article-category-nav a:hover,.article-category-nav a.active{background:#edf9f6;border-color:rgba(43,191,165,.26);color:#168b7e}
.article-section{padding:34px 0 88px}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.article-card{overflow:hidden;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 8px 24px rgba(47,82,125,.05);transition:.22s ease}.article-card:hover{transform:translateY(-3px);border-color:rgba(58,141,245,.24);box-shadow:0 14px 34px rgba(47,82,125,.09)}.article-card>a{height:100%;display:flex;flex-direction:column}.article-card-cover{aspect-ratio:16/9;overflow:hidden;background:#e9f2fb}.article-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}.article-card:hover .article-card-cover img{transform:scale(1.02)}.article-card-placeholder{display:grid;place-items:center;background:linear-gradient(135deg,#e8fbf6,#e7f2ff)}.article-card-placeholder span{width:52px;height:52px;border-radius:8px;display:grid;place-items:center;background:linear-gradient(135deg,#2bbfa5,#3a8df5);color:#fff;font-size:24px;font-weight:900;box-shadow:0 10px 24px rgba(58,141,245,.16)}.article-card-body{display:flex;flex:1;flex-direction:column;padding:20px}.article-card-meta{display:flex;justify-content:space-between;gap:16px;color:#8090a3;font-size:12px}.article-card-meta span{color:#168b7e;font-weight:700}.article-card h2{margin:10px 0 8px;font-size:19px;line-height:1.5;letter-spacing:-.015em;color:#17314f}.article-card p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:0 0 18px;color:#687b92;font-size:14px}.article-card-more{margin-top:auto;color:#245f9d;font-size:13px;font-weight:700}.article-card-more span{display:inline-block;margin-left:4px;transition:transform .2s}.article-card:hover .article-card-more span{transform:translateX(3px)}.article-empty{grid-column:1/-1;padding:64px 30px;text-align:center;border:1px dashed var(--line-strong);border-radius:8px;background:rgba(255,255,255,.7)}.article-empty h2{margin:0 0 8px}.article-empty p{margin:0;color:var(--muted)}
.article-pagination{display:flex;justify-content:center;gap:8px;margin-top:38px}.article-pagination a{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:5px;background:#fff;color:#587089;font-weight:700}.article-pagination a.active,.article-pagination a:hover{color:#fff;background:#2f8fdc;border-color:#2f8fdc}

/* Article detail: conventional two-column article page */
.article-detail-section{padding:64px 0 96px}
.article-detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;align-items:start}
.article-primary{min-width:0}
.article-detail-head{padding:0 0 24px;border-bottom:1px solid var(--line)}
.article-detail-head h1{max-width:860px;margin:0;font-size:clamp(34px,4vw,46px);line-height:1.25;letter-spacing:-.03em;color:#132d4a}
.article-detail-cover{margin:30px 0 0;overflow:hidden;border:1px solid var(--line);background:#fff}
.article-detail-cover img{width:100%;height:auto;max-height:560px;object-fit:cover}
.article-content{padding:34px 0 0;background:transparent;font-size:17px;line-height:1.92;color:#2b4058}
.article-content>*:first-child{margin-top:0}
.article-content>*:last-child{margin-bottom:0}
.article-content h2{margin:42px 0 15px;padding:0;font-size:25px;line-height:1.45;letter-spacing:-.015em;color:#17314f}
.article-content h3{margin:32px 0 12px;font-size:20px;line-height:1.5;color:#29435e}
.article-content h4{margin:26px 0 10px;font-size:17px;color:#354e68}
.article-content p{margin:0 0 21px}
.article-content ul,.article-content ol{margin:0 0 23px;padding-left:1.45em}
.article-content li{margin:7px 0}
.article-content a{color:#2877bf;text-decoration:underline;text-underline-offset:3px}
.article-content img{height:auto;margin:30px auto}
.article-content figure{margin:30px 0}
.article-content figcaption{margin-top:8px;text-align:center;color:#8694a5;font-size:13px}
.article-content blockquote{margin:28px 0;padding:12px 0 12px 18px;border-left:3px solid #2bbfa5;color:#536b82}
.article-content pre{overflow:auto;padding:18px;background:#102033;color:#e8f1fb;font-size:14px;line-height:1.65}
.article-content code{font-family:Consolas,Monaco,monospace}
.article-content:not(pre)>code{padding:2px 5px;background:#edf4fb;color:#27547f}
.article-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-content th,.article-content td{padding:11px 13px;border:1px solid #dbe5ef;text-align:left}
.article-content th{background:#f1f6fb}
.article-prevnext{margin:52px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr}
.article-prevnext a{padding:18px 0;background:transparent;transition:.2s}
.article-prevnext a:first-child{padding-right:24px}
.article-prevnext a.next{padding-left:24px;border-left:1px solid var(--line);text-align:right}
.article-prevnext a:hover strong{color:#2877bf}
.article-prevnext small{display:block;margin-bottom:4px;color:#8a98a9;font-size:12px}
.article-prevnext strong{display:block;color:#29435e;line-height:1.55;font-size:14px;font-weight:700;transition:.2s}
.article-prevnext>span{min-height:72px}
.article-prevnext>span+span,.article-prevnext>span+a.next{border-left:1px solid var(--line)}
.article-sidebar{position:sticky;top:110px;min-width:0}
.article-sidebar-section{margin:0 0 38px;padding-top:14px;border-top:2px solid #223d5b}
.article-sidebar-section h2{margin:0 0 13px;font-size:18px;line-height:1.4;color:#193653}
.article-sidebar-related{border-top:1px solid var(--line)}
.article-sidebar-related a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}
.article-sidebar-related a span{display:block;color:#2c435c;font-size:14px;font-weight:700;line-height:1.55;transition:.2s}
.article-sidebar-related a time{display:block;margin-top:5px;color:#8a98aa;font-size:12px}
.article-sidebar-related a:hover span{color:#2877bf}
.article-sidebar-categories{border-top:1px solid var(--line)}
.article-sidebar-categories a{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px solid var(--line);color:#526a83;font-size:14px;transition:.2s}
.article-sidebar-categories a span{color:#a1adba}
.article-sidebar-categories a:hover,.article-sidebar-categories a.active{color:#168b7e;font-weight:700}
.article-sidebar-all{display:inline-block;color:#2877bf;font-size:13px;font-weight:700}
.article-sidebar-all:hover{text-decoration:underline;text-underline-offset:3px}

.neo-footer{border-top:1px solid var(--line);background:#f5f8fc}.neo-footer-main{display:grid;grid-template-columns:1.4fr repeat(2,.75fr);gap:55px;padding:58px 0 42px}.neo-footer-brand p{max-width:430px;margin:18px 0 0;color:#6f8299;font-size:13px}.neo-footer dl{margin:0}.neo-footer dt{margin-bottom:16px;font-size:14px;font-weight:800}.neo-footer dd{margin:9px 0;color:#8295ab;font-size:13px}.neo-footer dd a:hover{color:#245f9d}.neo-footer-bottom{padding:22px 0 28px;border-top:1px solid rgba(35,73,118,.08);color:#6f8299;font-size:12px}.neo-mobile-dock{display:none}

@media(max-width:980px){.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-detail-layout{grid-template-columns:minmax(0,1fr) 260px;gap:42px}}
@media(max-width:760px){body{padding-bottom:calc(78px + env(safe-area-inset-bottom,0px))}.neo-container{width:min(calc(100% - 28px),var(--container))}.neo-nav{min-height:68px}.neo-menu-toggle{display:block}.neo-menu{position:absolute;top:68px;left:14px;right:14px;padding:10px;display:none;flex-direction:column;align-items:stretch;border:1px solid rgba(35,73,118,.16);border-radius:8px;background:rgba(255,255,255,.98);box-shadow:0 18px 42px rgba(47,82,125,.13)}.neo-menu.open{display:flex}.neo-menu a{padding:12px 14px}.neo-nav-action{display:none}.article-main{padding-top:68px}.article-hero{padding:52px 0 30px}.article-hero h1{font-size:36px}.article-hero p{font-size:15px}.article-category-nav{overflow-x:auto;flex-wrap:nowrap;padding-top:18px;padding-bottom:5px}.article-category-nav a{white-space:nowrap}.article-section{padding:24px 0 68px}.article-grid{grid-template-columns:1fr;gap:16px}.article-card{border-radius:6px}.article-card-cover{aspect-ratio:16/8.8}.article-detail-section{padding:40px 0 70px}.article-detail-layout{display:block}.article-detail-head{padding-bottom:20px}.article-detail-head h1{font-size:32px;line-height:1.3}.article-detail-cover{margin-top:24px}.article-content{padding-top:26px;font-size:16px;line-height:1.9}.article-content h2{margin-top:34px;font-size:22px}.article-content h3{margin-top:27px;font-size:18px}.article-content img{margin:24px auto}.article-prevnext{grid-template-columns:1fr;margin-top:42px}.article-prevnext a:first-child{padding-right:0}.article-prevnext a.next{padding-left:0;border-left:0;border-top:1px solid var(--line);text-align:left}.article-prevnext>span{display:none}.article-sidebar{position:static;margin-top:50px}.article-sidebar-section{margin-bottom:32px}.article-sidebar-related a{padding:13px 0}.neo-footer-main{grid-template-columns:1fr 1fr;gap:34px 24px}.neo-footer-brand{grid-column:1/-1}.neo-mobile-dock{position:fixed;left:0;right:0;bottom:0;width:100%;z-index:220;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));background:rgba(255,255,255,.94);border-top:1px solid rgba(35,73,118,.12);box-shadow:0 -12px 34px rgba(47,82,125,.12);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.neo-mobile-dock-btn{width:100%;min-width:0;min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;font-size:15px;font-weight:800;line-height:1}.neo-mobile-dock-btn svg{width:20px;height:20px;flex:0 0 20px}.neo-mobile-login{color:#fff;background:linear-gradient(135deg,#2bbfa5,#39cbb2);box-shadow:0 8px 22px rgba(43,191,165,.22)}.neo-mobile-service{color:#245f9d;background:#edf5ff;border:1px solid rgba(58,141,245,.18)}}