:root{
  --blue:#0b3a6b; --blue2:#12508f; --gold:#d4a017; --gold2:#e8c15a;
  --bg:#dbe1e9; --card:#ffffff; --ink:#1c2733; --muted:#6b7a8a;
  --line:#dde4ea; --accent:#c0392b;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px}
a{color:var(--blue2);text-decoration:none}
a:hover{color:var(--accent)}
img{max-width:100%}

.topbar{background:#071f36;color:#cfd8e3;font-size:13px}
.topbar-inner{max-width:1180px;margin:0 auto;padding:6px 20px;display:flex;justify-content:space-between;align-items:center}
.topbar-links a{color:#cfd8e3;margin-left:14px}
.topbar-links a:hover{color:#fff}

.site-header{background:linear-gradient(135deg,#0b3a6b 0%,#12508f 60%,#1a5fa8 100%);color:#fff}
.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:20px;justify-content:center}
.logo{height:110px;display:block}
.header-title{font-size:34px;font-weight:800;letter-spacing:4px}
.header-desc{font-size:14px;color:#bcd2e8;margin-top:2px}

.main-nav{background:#0b3a6b;border-top:2px solid var(--gold);border-bottom:2px solid var(--gold)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;flex-wrap:wrap;justify-content:center}
.nav-inner a{color:#e6eef7;padding:12px 18px;font-size:15px;border-right:1px solid rgba(255,255,255,.08)}
.nav-inner a:hover{background:rgba(255,255,255,.1)}
.nav-inner a.active{background:var(--gold);color:#0b3a6b;font-weight:700}
.nav-inner a.nav-index{color:var(--gold2);font-weight:700;letter-spacing:1px}
.nav-inner a.nav-index:hover{color:#fff;background:rgba(212,160,23,.22)}

.container{max-width:1180px;margin:0 auto;padding:26px 20px 40px}

.carousel{position:relative;border-radius:10px;overflow:hidden;margin-bottom:30px;height:380px;background:#0b3a6b}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .6s}
.slide.active{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover}
.slide-cap{position:absolute;left:0;right:0;bottom:0;padding:30px 26px 20px;background:linear-gradient(transparent,rgba(7,31,54,.92))}
.slide-cap a{color:#fff;font-size:22px;font-weight:700}
.slide-cap a:hover{color:var(--gold2)}
.slide-cap span{display:inline-block;margin-top:6px;background:var(--gold);color:#0b3a6b;font-size:12px;padding:2px 10px;border-radius:10px}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.4);color:#fff;border:none;font-size:26px;width:44px;height:44px;cursor:pointer;border-radius:50%;z-index:5}
.carousel-prev{left:16px}
.carousel-next{right:16px}
.carousel-prev:hover,.carousel-next:hover{background:var(--gold)}
.carousel-dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);z-index:5;display:flex;gap:8px}
.dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer}
.dot.active{background:var(--gold)}

.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:30px}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:20px;display:block;transition:.2s;border-top:3px solid var(--blue2)}
.cat-card:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(11,58,107,.12);border-top-color:var(--gold)}
.cat-card-name{font-size:19px;font-weight:700;color:var(--blue)}
.cat-card-desc{font-size:13px;color:var(--muted);margin:6px 0 12px}
.cat-card-count{font-size:13px;color:var(--gold);font-weight:600}

.sub-nav{display:flex;flex-wrap:wrap;gap:10px}
.sub-nav-item{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--card);border:1px solid var(--line);border-radius:20px;font-size:14px;color:var(--ink);text-decoration:none;transition:all .15s}
.sub-nav-item:hover{border-color:var(--blue2);color:var(--blue2)}
.sub-nav-item span{background:var(--gold);color:#0b3a6b;font-size:12px;font-weight:700;padding:1px 8px;border-radius:10px}

.section-title{font-size:22px;font-weight:700;color:var(--blue);border-left:4px solid var(--gold);padding-left:12px;margin:30px 0 16px}
.page-title{display:flex;align-items:baseline;gap:10px;border-bottom:2px solid var(--gold);padding-bottom:12px;margin-bottom:20px;justify-content:flex-start}
.page-title h1{font-size:28px;color:var(--blue)}
.page-title-count{font-size:14px;color:var(--muted)}
.sub-title{font-size:19px;color:var(--blue);margin:22px 0 12px;padding-left:10px;border-left:3px solid var(--gold)}

.art-list{list-style:none}
.art-item{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px;margin-bottom:12px;display:flex;gap:16px;align-items:center;transition:.15s}
.art-item:hover{border-color:var(--gold);box-shadow:0 3px 10px rgba(0,0,0,.06)}
.list-thumb{width:150px;height:100px;object-fit:cover;border-radius:6px;flex-shrink:0}
.no-thumb{width:150px;height:100px;border-radius:6px;flex-shrink:0;background:linear-gradient(135deg,#0b3a6b,#1a5fa8);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;letter-spacing:2px}
.text-thumb{font-size:13px;padding:8px;text-align:center;line-height:1.4;letter-spacing:0}
.art-item-body{flex:1;min-width:0}
.art-title{font-size:16.5px;font-weight:600;color:var(--ink)}
.art-title:hover{color:var(--accent)}
.art-summary{font-size:13.5px;color:var(--muted);margin:4px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-meta{font-size:13px;color:var(--muted)}
.tag{display:inline-block;background:#eef3f8;color:var(--blue2);font-size:12px;padding:1px 8px;border-radius:10px;margin-left:6px}
.views{color:var(--accent);font-weight:600}
.sub-head{list-style:none;font-size:18px;font-weight:700;color:var(--blue);margin:18px 0 8px;padding-left:10px;border-left:3px solid var(--gold)}

.cat-pagination{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin-top:30px;flex-wrap:wrap}
.page-num{display:inline-block;min-width:34px;height:34px;line-height:34px;text-align:center;border:1px solid var(--line);border-radius:5px;color:var(--blue2);background:var(--card);font-size:14px}
.page-num.active{background:var(--blue2);color:#fff;border-color:var(--blue2)}
.page-num:hover{border-color:var(--gold)}
.page-ellipsis{color:var(--muted);padding:0 4px}
.page-btn{display:inline-block;background:var(--blue2);color:#fff;padding:6px 18px;border-radius:5px;font-size:14px}
.page-btn.disabled{background:#ccc;color:#666;cursor:not-allowed}
.page-btn.disabled:hover{background:#ccc;color:#666}

.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.article-container{max-width:860px}
.article{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:40px 48px}
.article-title{font-size:28px;color:var(--blue);line-height:1.4;margin-bottom:10px;text-align:center}
.article-byline{text-align:center;color:var(--muted);font-size:14px;margin-bottom:28px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.article-body p{margin-bottom:1.1em;font-size:16.5px;text-align:left}
.article-body .sub-heading{font-size:20px;font-weight:700;color:#0b3a6b;margin:26px 0 12px;padding-left:12px;border-left:4px solid var(--gold);line-height:1.4;background:linear-gradient(135deg,#f0f4f8 0%,#e8eef5 100%);padding:10px 12px;border-radius:0 6px 6px 0}
.article-body .fig-caption{font-size:14px;color:var(--muted);text-align:center;margin:-14px 0 20px;line-height:1.5}
.article-body figure{margin:22px 0;text-align:center}
.article-body img{max-width:100%;height:auto;border-radius:6px;box-shadow:0 3px 12px rgba(0,0,0,.12);border:1px solid #333}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:6px}
.table-wrap{overflow-x:auto;margin:22px 0}
.article-body table{width:115%;margin-left:-7.5%;border-collapse:collapse;font-size:15px;background:#e8ecf0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:#d0dce6;font-weight:700;color:#1a3a5c;white-space:nowrap}
.article-body tr:nth-child(even) td{background:#dde4ea}
.pagination{margin:0;padding:16px 0;display:flex;align-items:center;gap:10px;justify-content:center}
.page-info{font-size:14px;color:var(--muted)}

.search-container{max-width:860px}
.search-box{display:flex;gap:10px;margin-bottom:24px}
.search-box input{flex:1;padding:12px 16px;border:1px solid var(--line);border-radius:6px;font-size:16px;outline:none}
.search-box input:focus{border-color:var(--blue2)}
.search-box button{background:var(--blue2);color:#fff;border:none;padding:12px 26px;border-radius:6px;font-size:16px;cursor:pointer}
.search-box button:hover{background:var(--gold);color:#0b3a6b}
.search-hint{color:var(--muted);text-align:center;padding:40px 0}
.search-count{color:var(--muted);margin-bottom:14px}

.site-footer{background:#071f36;color:#9fb2c4;margin-top:40px}
.footer-inner{max-width:1180px;margin:0 auto;padding:26px 20px;text-align:center;font-size:13px;line-height:1.9}

@media(max-width:720px){
  .header-title{font-size:24px}
  .logo{height:60px}
  .article{padding:24px 18px}
  .article-title{font-size:22px}
  .carousel{height:220px}
  .list-thumb,.no-thumb{width:100px;height:70px}
}

.article-meta-info{font-size:14px;color:#999;text-align:center;margin:12px 0 20px;line-height:1.6}

.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.art-grid-item{background:var(--card);border:2px solid var(--line);border-radius:10px;overflow:hidden;transition:all .15s}
.art-grid-item:hover{border-color:var(--accent);box-shadow:0 4px 12px rgba(0,0,0,.08)}
.art-grid-thumb{display:block;width:100%;height:160px;overflow:hidden}
.art-grid-thumb img,.art-grid-thumb img.list-thumb{width:100%!important;height:100%!important;object-fit:cover!important;border-radius:0!important}
.art-grid-thumb .no-thumb{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--blue);color:rgba(255,255,255,.3);font-size:20px;font-weight:700}
.art-grid-body{padding:14px 16px}
.art-grid-body .art-title{font-size:15px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-grid-body .art-summary{font-size:13px;color:var(--muted);margin:6px 0;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-grid-body .art-meta{font-size:12px;color:var(--muted)}
@media(max-width:900px){.art-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.art-grid{grid-template-columns:repeat(1,1fr)}.art-grid-thumb{height:120px}}

.art-thumb img{border:1px solid var(--line)}
.art-grid-single{grid-template-columns:1fr!important}
.art-grid-single .art-grid-item{display:flex;flex-direction:row}
.art-grid-single .art-grid-thumb{width:200px;height:140px;flex-shrink:0}
.art-grid-single .art-grid-body{flex:1}
.picpic-post{margin-bottom:30px}
.picpic-title{font-size:18px;font-weight:700;color:var(--blue);margin:0 0 12px;padding-bottom:8px;border-bottom:2px solid var(--blue)}
.picpic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.picpic-item{overflow:hidden;border-radius:6px;border:1px solid var(--line)}
.picpic-item img{width:100%;height:200px;object-fit:cover;display:block;transition:transform .3s}
.picpic-item:hover img{transform:scale(1.05)}
@media(max-width:900px){.picpic-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.picpic-grid{grid-template-columns:repeat(2,1fr)}}

.slide a{display:block;width:100%;height:100%;position:absolute;top:0;left:0;z-index:1}
.slide a img{width:100%;height:100%;object-fit:cover}
.slide-cap{z-index:2}

/* 系列文章链接 */
.series-divider{border-top:1px dashed var(--line);margin:24px 0}
.series-box{background:linear-gradient(135deg,#f8fafc 0%,#eef3f8 100%);border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:8px;padding:16px 20px;margin-top:24px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.series-box .series-title{font-size:15px;font-weight:700;color:var(--blue);margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.series-box ul{list-style:none;padding:0;margin:0}
.series-box li{padding:6px 0;font-size:14px;color:var(--blue2)}
.series-box li.active{color:var(--accent);font-weight:600}
.series-box li.active::before{content:"▶ ";color:var(--gold);font-weight:700}

/* 右侧悬浮公众号二维码 */
.float-qrcode{position:fixed;right:20px;bottom:20px;z-index:9999;width:140px;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,.15);padding:10px;text-align:center;cursor:pointer}
.float-qrcode img{width:100%;height:auto;display:block;border-radius:4px}
.float-qrcode .qr-text{margin-top:8px;font-size:13px;color:var(--blue);line-height:1.4;font-weight:600}
@media (max-width:768px){.float-qrcode{width:110px;right:10px;bottom:10px}}
/* 纯文字标题列表（两列卡片，灰色背景，带序号） */
.text-title-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.text-title-list a{display:flex;align-items:center;gap:10px;background:#f2f4f7;border:1px solid #e3e7ec;border-radius:6px;padding:10px 14px;font-size:14.5px;line-height:1.5;color:var(--blue2);text-decoration:none;transition:all .15s;min-width:0}
.text-title-list a:hover{background:#fff;border-color:var(--gold);color:var(--accent);box-shadow:0 2px 8px rgba(11,58,107,.08)}
.text-title-list a .idx{flex:0 0 auto;min-width:32px;height:32px;line-height:32px;text-align:center;background:var(--blue2);color:#fff;border-radius:6px;font-size:14px;font-weight:700;padding:0 8px;box-sizing:border-box}
.text-title-list a:hover .idx{background:var(--gold);color:#0b3a6b}