/* ========== 基础变量（青花蓝，全站统一） ========== */
:root{
--paper:#f2f5fa;--paper-2:#f9fbfe;--ink:#10233c;--ink-2:#5d6c81;--line:#d7dfeb;
--accent:#145bbd;--accent-deep:#0d4290;--accent-tint:#e7effa;
--serif:'Noto Serif SC','STSong','SimSun',serif;
--sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.045;
background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1220px;margin:0 auto;padding:0 28px}
::selection{background:var(--accent);color:#fff}
img{max-width:100%;border:0;display:block}

/* ========== 顶部（与全站一致） ========== */
.topbar-util{position:relative;z-index:150;background:#0d1c30;color:#8fa0b8;font-size:12px}
.topbar-util .wrap{display:flex;align-items:center;justify-content:space-between;height:34px;gap:16px}
.tu-left{display:flex;align-items:center;gap:20px;min-width:0;white-space:nowrap;overflow:hidden}
.tu-hotline{display:flex;align-items:center;gap:6px;color:#6c7d96}
.tu-hotline svg{stroke:#4d5f7c;flex-shrink:0}
.tu-hotline b{color:#c4cddc;font-weight:500;font-family:var(--serif)}
.tu-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.tu-link{color:#8fa0b8;cursor:pointer;transition:color .2s}
.tu-link:hover{color:#7fb1ea}
.tu-reg{color:#eef2f8;background:rgba(255,255,255,.08);padding:3px 12px;border-radius:2px}
.tu-sep{width:1px;height:11px;background:rgba(255,255,255,.16)}
.lang-switch{position:relative}
.lang-btn{display:flex;align-items:center;gap:7px;color:#c4cddc;font-size:12px;padding:4px 11px;border:1px solid rgba(255,255,255,.2);border-radius:3px;background:rgba(255,255,255,.04)}
.lang-btn:hover{color:#fff;border-color:rgba(255,255,255,.45)}
.lang-btn svg.lg-globe{stroke:currentColor}
.lg-caret{width:0;height:0;border-left:3.5px solid transparent;border-right:3.5px solid transparent;border-top:4px solid currentColor;transition:transform .2s}
.lang-switch.open .lg-caret{transform:rotate(180deg)}
.lang-pop{position:absolute;top:calc(100% + 10px);right:0;width:216px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 16px 38px rgba(16,35,60,.18);display:none;overflow:hidden;z-index:160}
.lang-switch.open .lang-pop{display:block}
.lg-head{font-size:10px;letter-spacing:.28em;color:#9aa7ba;padding:12px 16px 9px;border-bottom:1px solid #eff3f9;background:#f9fbfe}
.lg-item{display:flex;align-items:center;gap:6px;padding:9px 16px;font-size:13px;color:#3a4a63;cursor:pointer}
.lg-item:hover{background:var(--accent-tint)}
.lg-chk{width:15px;font-size:12px;color:var(--accent);visibility:hidden}
.lg-item.on .lg-chk{visibility:visible}
.lg-name{flex:1}
.lg-code{font-size:10px;color:#9aa7ba;border:1px solid var(--line);padding:1px 6px;border-radius:2px}
.topbar{position:sticky;top:0;z-index:100;background:rgba(249,251,254,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:34px;height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand .seal{width:34px;height:34px;background:var(--accent);color:#fff;font-family:var(--serif);font-weight:900;font-size:19px;display:grid;place-items:center;border-radius:3px}
.brand-name{font-family:var(--serif);font-weight:900;font-size:19px;line-height:1.1}
.brand-name small{display:block;font-size:9px;letter-spacing:.3em;color:var(--ink-2)}
.topnav{display:flex;gap:6px;flex:1}
.topnav a{font-size:14px;padding:6px 14px;white-space:nowrap;color:#3a4a63;cursor:pointer}
.topnav a:hover,.topnav a.on{color:var(--accent);font-weight:700}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 9px;border:1px solid var(--line);border-radius:6px;background:#fff;margin-left:auto}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px}
.drawer-mask{position:fixed;inset:0;z-index:300;background:rgba(9,20,38,.5);opacity:0;pointer-events:none;transition:opacity .3s}
.drawer-mask.show{opacity:1;pointer-events:auto}
.m-drawer{position:fixed;top:0;right:0;bottom:0;z-index:310;width:min(310px,86vw);background:var(--paper-2);box-shadow:-14px 0 40px rgba(9,20,38,.25);transform:translateX(105%);transition:transform .34s cubic-bezier(.3,.8,.3,1);display:flex;flex-direction:column;overflow-y:auto}
.m-drawer.open{transform:none}
.md-head{display:flex;align-items:center;gap:10px;padding:16px 18px;background:var(--ink);color:#eef2f8}
.md-head .seal{width:32px;height:32px;background:var(--accent);color:#fff;font-family:var(--serif);font-weight:900;font-size:17px;display:grid;place-items:center;border-radius:3px}
.md-brand{font-family:var(--serif);font-weight:900;font-size:16px;line-height:1.2}
.md-brand small{display:block;font-size:8px;letter-spacing:.26em;color:#7688a1;margin-top:2px}
.md-close{margin-left:auto;width:34px;height:34px;display:grid;place-items:center;color:#8496b0;border:1px solid rgba(255,255,255,.2);border-radius:5px}
.md-user{display:flex;gap:10px;padding:16px 18px 14px;border-bottom:1px solid var(--line)}
.md-user a{flex:1;text-align:center;padding:9px 0;font-size:13.5px;border-radius:4px;cursor:pointer}
.md-user .md-login{border:1px solid var(--line);color:#42506b;background:#fff}
.md-user .md-reg{background:var(--accent);color:#fff}
.md-block{padding:6px 18px 14px;border-bottom:1px solid var(--line)}
.md-label{font-size:10px;letter-spacing:.3em;color:#9aa7ba;margin:12px 0 10px}
.md-nav a{display:flex;justify-content:space-between;padding:12px 2px;font-size:15.5px;color:#33455f;border-bottom:1px dashed var(--line);cursor:pointer}
.md-nav a::after{content:'›';color:#b8c2d2}
.md-lang-list{display:flex;flex-wrap:wrap;gap:6px}
.md-lang-list button{font-size:12px;padding:5px 12px;border:1px solid var(--line);border-radius:3px;color:#42506b;background:#fff}
.md-lang-list button.on{background:var(--accent);border-color:var(--accent);color:#fff}
.md-foot{margin-top:auto;padding:16px 18px;font-size:11.5px;color:#9aa7ba;border-top:1px solid var(--line)}

/* ========== 章节头 ========== */
.sec-head{display:flex;align-items:center;gap:18px;border-bottom:1px solid var(--line);padding-bottom:20px}
.sec-no{flex-shrink:0;width:36px;height:36px;background:var(--ink);color:#f5f8fd;font-family:var(--serif);font-size:16px;font-weight:700;display:grid;place-items:center;border-bottom:3px solid var(--accent)}
.sec-head h2{font-family:var(--serif);font-size:29px;font-weight:900;letter-spacing:.1em;line-height:1.2}
.sec-en{font-size:10px;letter-spacing:.36em;color:var(--ink-2)}
.sec-note{margin-left:auto;font-size:12.5px;color:var(--ink-2)}

/* ================================================================
资讯详情主体
================================================================ */
.detail{padding:30px 0 0}
.crumb{font-size:12.5px;color:var(--ink-2);display:flex;align-items:center;gap:9px;margin-bottom:20px;flex-wrap:wrap}
.crumb a{cursor:pointer;transition:color .2s}
.crumb a:hover{color:var(--accent)}
.crumb i{font-style:normal;color:#b8c2d2;font-size:10px}
.crumb em{font-style:normal;color:var(--ink);font-weight:500}

/* 双栏布局 */
.art-layout{display:grid;grid-template-columns:1fr 330px;gap:40px;margin-top:6px}
.art-main{min-width:0}
.art-side{min-width:0}

/* 文章卡 */
.art-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:30px 34px 26px}
.art-tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.art-cat{font-size:12px;color:var(--accent);background:var(--accent-tint);border:1px solid rgba(20,91,189,.25);padding:2px 12px;border-radius:2px;letter-spacing:.1em}
.art-date{font-size:12px;color:#9aa7ba;letter-spacing:.04em}
.art-card h1{font-family:var(--serif);font-size:26px;font-weight:900;line-height:1.55;letter-spacing:.02em;margin-top:14px;color:#13294a}
.art-info{display:flex;align-items:center;gap:16px;margin-top:16px;padding:12px 0;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);font-size:12.5px;color:#9aa7ba;flex-wrap:wrap}
.art-info b{color:#42506b;font-weight:500}
.art-info .share-btn{margin-left:auto;cursor:pointer;color:var(--ink-2);border-bottom:1px dashed #b8c6da;letter-spacing:.05em}
.art-info .share-btn:hover{color:var(--accent);border-color:var(--accent)}
/* 正文 */
.art-content{margin-top:22px;font-size:15px;color:#33455f;line-height:2.1;word-break:break-word}
.art-content p{margin:0 0 16px;text-indent:2em}
.art-content p.noindent{text-indent:0}
.art-content h3{font-family:var(--serif);font-size:18px;margin:26px 0 12px;color:#1c3050;padding-left:12px;border-left:3px solid var(--accent);text-indent:0}
.art-content img{border-radius:8px;margin:16px auto;max-width:100%}
.art-content blockquote{margin:18px 0;padding:14px 18px;background:var(--accent-tint);border-left:4px solid var(--accent);border-radius:0 8px 8px 0;font-size:13.5px;color:#28405f;line-height:1.9;text-indent:0}
.art-content table{border-collapse:collapse;width:100%;margin:16px 0;font-size:13px}
.art-content table td,.art-content table th{border:1px solid var(--line);padding:9px 12px;text-indent:0}
.art-content table th{background:var(--accent-tint);font-weight:600}
.art-content strong{color:#13294a}
/* 关键词 */
.art-kw{margin-top:20px;padding-top:16px;border-top:1px dashed var(--line);font-size:12.5px;color:#9aa7ba;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.art-kw span{border:1px solid #c6d4e8;padding:2px 12px;color:#42506b;font-size:12px;border-radius:2px;cursor:pointer;transition:all .2s}
.art-kw span:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-tint)}
/* 上下篇 */
.art-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.art-nav a{border:1px solid var(--line);border-radius:8px;padding:13px 16px;font-size:13px;color:#42506b;cursor:pointer;transition:all .2s;background:#fff;min-width:0}
.art-nav a:hover{border-color:var(--accent);color:var(--accent)}
.art-nav a i{font-style:normal;display:block;font-size:11px;color:#9aa7ba;letter-spacing:.1em;margin-bottom:3px}
.art-nav a b{font-weight:500;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.art-nav a.next{text-align:right}

/* 右栏：作者卡 + 热门榜 + 订阅 */
.au-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px}
.au-top{display:flex;align-items:center;gap:12px}
.au-avatar{width:48px;height:48px;background:var(--ink);color:#fff;font-family:var(--serif);font-weight:700;font-size:19px;display:grid;place-items:center;border-radius:8px;flex-shrink:0}
.au-id h4{font-family:var(--serif);font-size:15px;font-weight:700}
.au-id p{font-size:10.5px;letter-spacing:.14em;color:#9aa7ba;margin-top:2px}
.au-stat{display:flex;margin-top:16px;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.au-stat>div{flex:1;text-align:center;padding:10px 6px;border-left:1px solid var(--line)}
.au-stat>div:first-child{border-left:none}
.au-stat i{display:block;font-style:normal;font-size:10px;letter-spacing:.16em;color:#9aa7ba}
.au-stat b{display:block;font-family:var(--serif);font-size:17px;font-weight:700;color:#1c3050;margin-top:2px}
.ns-box{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.ns-head{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.ns-head::before{content:'';width:3px;height:14px;background:var(--accent)}
.ns-head h4{font-size:14px;font-weight:700;letter-spacing:.1em}
.ns-rank{list-style:none;padding:8px 10px}
.ns-rank li{display:flex;align-items:center;gap:11px;padding:8px 8px;cursor:pointer;border-radius:4px}
.ns-rank li:hover{background:var(--accent-tint)}
.ns-no{flex-shrink:0;width:20px;height:20px;display:grid;place-items:center;font-family:var(--serif);font-size:12px;font-weight:700;color:#9aa7ba;border:1px solid var(--line);border-radius:3px}
.ns-rank li:nth-child(-n+3) .ns-no{background:var(--accent);border-color:var(--accent);color:#fff}
.ns-t{flex:1;font-size:13px;color:#33455f;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ns-rank li:hover .ns-t{color:var(--accent)}
.ns-sub{margin-top:20px;background-color:var(--ink);background-image:repeating-linear-gradient(-45deg,rgba(255,255,255,.03) 0 2px,transparent 2px 12px);border-radius:10px;padding:22px 20px;color:#8496b0}
.ns-sub h4{font-family:var(--serif);font-size:17px;font-weight:900;color:#eef2f8;letter-spacing:.06em}
.ns-sub p{font-size:12px;margin-top:8px;line-height:1.8}
.ns-sub-box{display:flex;gap:8px;margin-top:14px}
.ns-sub-box input{flex:1;min-width:0;height:40px;border:1px solid rgba(255,255,255,.25);border-radius:5px;background:rgba(255,255,255,.08);color:#fff;padding:0 12px;font-size:13px;outline:none}
.ns-sub-box input::placeholder{color:#7688a1}
.ns-sub-box button{flex-shrink:0;width:72px;background:var(--accent);color:#fff;font-size:13px;letter-spacing:.1em;border-radius:5px;cursor:pointer}
.ns-sub-box button:hover{background:var(--accent-deep)}

/* ===== 章节区（背景交替） ===== */
.dt-sec{padding:46px 0 56px}
.dt-sec.alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dt-sec-body{margin-top:26px}
/* 相关阅读（sup-card 同款，带图） */
.supply-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@keyframes supIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.sup-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;cursor:pointer;transition:transform .25s,box-shadow .25s,border-color .25s;animation:supIn .55s both;animation-delay:calc(var(--d)*60ms)}
.sup-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 12px 28px rgba(20,91,189,.12)}
.sup-img{position:relative;height:150px;overflow:hidden;border-bottom:1px solid var(--line)}
.sup-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.sup-card:hover .sup-img img{transform:scale(1.06)}
.sup-tag{position:absolute;left:10px;top:10px;font-size:10.5px;letter-spacing:.14em;color:#fff;background:var(--accent);padding:2px 9px;border-radius:2px}
.sup-body{padding:13px 16px 15px;display:flex;flex-direction:column;min-height:118px}
.sup-body h4{font-size:14.5px;font-weight:600;line-height:1.55;color:#26384f;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:45px}
.sup-spec{font-size:12px;color:var(--ink-2);margin-top:6px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sup-meta{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);font-size:11.5px;color:#9aa7ba;display:flex;gap:14px}
.sup-meta b{color:#42506b;font-weight:500}
/* 评论区 */
.cmt-form{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px 24px}
.cmt-form textarea{width:100%;min-height:96px;border:1px solid var(--line);border-radius:6px;padding:12px 14px;font-size:13.5px;font-family:var(--sans);color:var(--ink);outline:none;resize:vertical;transition:border-color .2s}
.cmt-form textarea:focus{border-color:var(--accent)}
.cmt-form-row{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap}
.cmt-form-row input{border:1px solid var(--line);border-radius:5px;padding:9px 12px;font-size:13px;outline:none;width:180px}
.cmt-form-row input:focus{border-color:var(--accent)}
.cmt-form-row button{margin-left:auto;background:var(--accent);color:#fff;padding:9px 28px;font-size:13px;letter-spacing:.12em;border-radius:3px;cursor:pointer}
.cmt-form-row button:hover{background:var(--accent-deep)}
.cmt-list{list-style:none;margin-top:20px}
.cmt-item{display:flex;gap:14px;padding:18px 14px;border-bottom:1px dashed var(--line)}
.cmt-item:last-child{border-bottom:none}
.cmt-avatar{flex-shrink:0;width:40px;height:40px;border-radius:50%;background:var(--accent-tint);border:1px solid #c6d4e8;color:var(--accent);font-family:var(--serif);font-weight:700;font-size:16px;display:grid;place-items:center}
.cmt-body{flex:1;min-width:0}
.cmt-head{display:flex;align-items:baseline;gap:10px}
.cmt-head b{font-size:13.5px;font-weight:600;color:#28405f}
.cmt-head small{font-size:11px;color:#9aa7ba}
.cmt-text{font-size:13.5px;color:#41506a;line-height:1.8;margin-top:6px}
.cmt-reply{margin-top:10px;padding:10px 14px;background:var(--paper-2);border-left:3px solid var(--accent);border-radius:0 6px 6px 0;font-size:12.5px;color:#42506b;line-height:1.7}
.cmt-reply b{color:var(--accent);font-weight:600}

/* CTA / 页脚 / Toast */
.sup-cta{margin-top:52px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--ink);background-image:repeating-linear-gradient(-45deg,rgba(255,255,255,.03) 0 2px,transparent 2px 12px);border-radius:10px;padding:18px 26px;color:#8496b0;flex-wrap:wrap}
.sup-cta b{color:#eef2f8;font-family:var(--serif);font-size:17px;letter-spacing:.06em;margin-right:10px}
.sup-cta-btn{background:var(--accent);color:#fff;padding:9px 26px;letter-spacing:.12em;font-size:13px;border-radius:3px;cursor:pointer}
.sup-cta-btn:hover{background:var(--accent-deep)}
footer{background:#0d1c30;color:#c4cddc;font-size:13px}
.ft-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding:58px 0 44px}
.ft-brand .seal{width:36px;height:36px;background:var(--accent);color:#fff;font-family:var(--serif);font-weight:900;font-size:20px;display:grid;place-items:center;border-radius:3px}
.ft-brand p{font-family:var(--serif);font-weight:900;font-size:19px;color:#eef2f8;margin-top:14px}
.ft-brand small{display:block;font-size:10px;letter-spacing:.3em;color:#7688a1;margin-top:5px}
.ft-slogan{margin-top:16px;font-size:12.5px;color:#8496b0;line-height:1.8;max-width:260px}
.ft-hotline{margin-top:16px;font-size:12px;color:#7688a1;line-height:1.9}
.ft-hotline b{color:#eef2f8;font-weight:500}
.ft-col h5{font-size:13px;color:#eef2f8;letter-spacing:.18em;margin-bottom:18px}
.ft-col a{display:block;padding:5px 0;color:#8496b0;cursor:pointer}
.ft-col a:hover{color:#7fb1ea}
.ft-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px;color:#6c7d96}
.toast{position:fixed;right:26px;bottom:26px;z-index:1000;background:var(--ink);color:#f5f8fd;font-size:13.5px;padding:13px 22px;border-left:3px solid var(--accent);opacity:0;transform:translateY(16px);pointer-events:none;transition:all .35s;max-width:80vw}
.toast.show{opacity:1;transform:none}

/* ========== 响应式 ========== */
@media (max-width:1020px){
.art-layout{grid-template-columns:1fr;gap:28px}
.supply-grid{grid-template-columns:repeat(2,1fr)}
.ft-top{grid-template-columns:repeat(2,1fr);gap:34px}
}
@media (max-width:900px){
.topbar-util{display:none}
.topnav{display:none}
.nav-toggle{display:flex}
.topbar .wrap{gap:16px;justify-content:space-between}
}
@media (max-width:760px){
.wrap{padding:0 16px}
.detail{padding:20px 0 0}
.art-card{padding:20px 18px}
.art-card h1{font-size:20px}
.art-content{font-size:14px}
.art-content p{text-indent:2em}
.dt-sec{padding:32px 0 40px}
.sec-head{flex-wrap:wrap;gap:12px 14px;padding-bottom:14px}
.sec-no{width:30px;height:30px;font-size:13px}
.sec-head h2{font-size:21px}
.sec-note{margin-left:0;width:100%;font-size:11.5px}
.supply-grid{grid-template-columns:1fr;gap:14px}
.art-nav{grid-template-columns:1fr}
.art-nav a.next{text-align:left}
.cmt-form-row input{width:100%}
.cmt-form-row button{width:100%;margin-left:0}
.sup-cta{padding:16px 18px;border-radius:8px}
.sup-cta p{font-size:12px;line-height:1.7}
.sup-cta b{font-size:15px}
.sup-cta-btn{width:100%;text-align:center}
.ft-top{grid-template-columns:1fr 1fr;gap:26px;padding:36px 0 30px}
.ft-bottom{flex-direction:column;gap:6px;font-size:11px}
.toast{left:14px;right:14px;bottom:14px;font-size:12.5px;padding:11px 16px}
}
@media (max-width:420px){
.brand-name{font-size:16px}
.ft-top{grid-template-columns:1fr}
}