/* ==========================================================
   锐CEO 资讯站 · 统一蓝色视觉体系
   适用：首页 / 新闻列表 / 搜索 / 分类 / 两篇文章详情页
   ========================================================== */

:root{
  --blue-950:#062457;
  --blue-900:#0a3273;
  --blue-800:#0d4296;
  --blue-700:#1256b5;
  --blue-600:#1a73e8;
  --blue-200:#c8ddf8;
  --blue-100:#e5f0fd;
  --blue-050:#f2f7fe;

  --ink:#142033;
  --ink-2:#41506a;
  --ink-3:#8492a6;
  --line:#e3eaf3;
  --bg:#f4f7fb;
  --white:#fff;
  --wrap:1200px;
  --radius:6px;
  --shadow:0 2px 14px rgba(10,50,115,.07);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  font-size:15px;line-height:1.6;
}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--blue-700)}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}

.rceo-wrap{width:min(var(--wrap),calc(100% - 32px));margin-inline:auto}
.rceo-main{padding:18px 0 40px}
.rceo-muted{color:var(--ink-3)}
.rceo-clip{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rceo-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rceo-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rceo-img{width:100%;height:100%;object-fit:cover;background:#e9eef6}

/* 缩略图：align-self:start 保留 aspect-ratio；a 铺满容器后 img 的 100% 宽高才有确定基准 */
.rceo-news-item figure,
.rceo-news-item--compact figure,
.rceo-section__lead figure,
.rceo-related__grid figure{position:relative;align-self:start;min-width:0}
.rceo-news-item figure a,
.rceo-news-item--compact figure a,
.rceo-section__lead figure a,
.rceo-related__grid figure a{position:absolute;inset:0;display:block}
.rceo-news-item figure img,
.rceo-news-item--compact figure img,
.rceo-section__lead figure img,
.rceo-related__grid figure img{width:100%;height:100%;object-fit:cover}
.rceo-ad-tag{
  position:absolute;right:8px;bottom:8px;z-index:2;
  font-size:11px;line-height:1;padding:4px 6px;border-radius:2px;
  color:#fff;background:rgba(6,36,87,.55);letter-spacing:.5px;
}

/* ---------------- 顶部 ---------------- */
.rceo-topbar{background:var(--blue-950);color:#a9c4ea;font-size:12px;height:32px;line-height:32px}
.rceo-topbar .rceo-wrap{display:flex;justify-content:space-between;gap:16px}
.rceo-topbar a{color:#a9c4ea;margin-left:16px}
.rceo-topbar a:hover{color:#fff}
.rceo-topbar__slogan{letter-spacing:1px}

.rceo-masthead{background:#fff;border-bottom:1px solid var(--line)}
.rceo-masthead .rceo-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:82px;padding-block:12px;
}
.rceo-brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.rceo-brand img{height:46px;width:auto;max-width:190px;object-fit:contain}
.rceo-brand__text{display:flex;flex-direction:column;border-left:2px solid var(--blue-700);padding-left:12px}
.rceo-brand__name{font-size:20px;font-weight:800;letter-spacing:2px;color:var(--blue-900);line-height:1.2}
.rceo-brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:1px}
.rceo-search{display:flex;width:min(340px,42%);height:38px;border:1px solid var(--blue-200);border-radius:4px;overflow:hidden;background:#fff}
.rceo-search input{flex:1;min-width:0;border:0;outline:0;padding:0 12px;font-size:14px;color:var(--ink)}
.rceo-search button{
  border:0;padding:0 20px;background:var(--blue-800);color:#fff;font-size:14px;font-weight:600;
}
.rceo-search button:hover{background:var(--blue-700)}

.rceo-nav{background:linear-gradient(90deg,var(--blue-900),var(--blue-700));box-shadow:0 2px 8px rgba(10,50,115,.16)}
.rceo-nav__list{display:flex;align-items:stretch;overflow-x:auto;scrollbar-width:none}
.rceo-nav__list::-webkit-scrollbar{display:none}
.rceo-nav__list a{
  display:flex;align-items:center;white-space:nowrap;padding:0 20px;height:46px;
  color:#e8f1ff;font-size:15px;font-weight:600;letter-spacing:.5px;
  border-right:1px solid rgba(255,255,255,.09);
}
.rceo-nav__list a:first-child{padding-left:22px}
.rceo-nav__list a:hover,.rceo-nav__list a.is-active{background:rgba(255,255,255,.15);color:#fff}

/* ---------------- 通用标题 / 卡片 ---------------- */
.rceo-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.rceo-block__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-bottom:2px solid var(--blue-800);
}
.rceo-block__head h2{
  display:flex;align-items:center;gap:9px;font-size:17px;font-weight:700;color:var(--blue-900);
}
.rceo-block__head h2::before{content:"";width:4px;height:17px;background:var(--blue-700);border-radius:2px}
.rceo-block__head a{font-size:12px;color:var(--ink-3)}
.rceo-block__body{padding:6px 16px 14px}

.rceo-breadcrumb{font-size:13px;color:var(--ink-3);margin:2px 0 16px}
.rceo-breadcrumb a{color:var(--ink-2)}
.rceo-breadcrumb a:hover{color:var(--blue-700)}
.rceo-breadcrumb span{margin:0 7px;color:#b9c4d2}

.rceo-page-title{
  display:flex;align-items:baseline;gap:12px;margin:0 0 16px;padding-bottom:12px;
  border-bottom:2px solid var(--blue-800);
}
.rceo-page-title h1{font-size:24px;color:var(--blue-900);font-weight:800}
.rceo-page-title small{font-size:13px;color:var(--ink-3)}

/* ---------------- 首页广告位 ---------------- */
.rceo-ads{display:grid;grid-template-columns:minmax(0,2.05fr) minmax(0,1fr);gap:12px;margin-bottom:22px}
.rceo-ads__big,.rceo-ads__side>*{position:relative;overflow:hidden;border-radius:var(--radius);background:#e9eef6}
.rceo-ads__big a{display:block;position:relative;width:100%;aspect-ratio:16/9}
.rceo-ads__side{display:grid;grid-template-rows:repeat(3,minmax(0,1fr));gap:12px;min-height:0}
.rceo-ads__side a{display:block;width:100%;height:100%}
.rceo-ads__big img,.rceo-ads__side img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.rceo-ads__placeholder{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  width:100%;height:100%;min-height:120px;color:#fff;
  background:linear-gradient(135deg,var(--blue-900),var(--blue-600));text-align:center;padding:16px;
}
.rceo-ads__placeholder strong{font-size:18px;letter-spacing:3px}
.rceo-ads__placeholder small{font-size:12px;opacity:.8}
.rceo-ads__big .rceo-ads__placeholder{aspect-ratio:16/9}
.rceo-ad-inline{display:none;margin:14px 0}
.rceo-ad-inline a{display:block;position:relative;overflow:hidden;border-radius:var(--radius)}
.rceo-ad-inline img{width:100%;height:auto;aspect-ratio:8/3;object-fit:cover}

/* ---------------- 首页栏目分区（紧凑型） ---------------- */
.rceo-sections{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 26px;margin-bottom:26px}
.rceo-section{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px 10px}
.rceo-section__head{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding-bottom:9px;margin-bottom:11px;border-bottom:2px solid var(--blue-800);
}
.rceo-section__head h2{font-size:17px;font-weight:800;color:var(--blue-900);letter-spacing:1px}
.rceo-section__head h2::before{content:"";display:inline-block;width:4px;height:15px;margin-right:8px;vertical-align:-2px;background:var(--blue-700);border-radius:2px}
.rceo-section__head a{font-size:12px;color:var(--ink-3)}
.rceo-section__lead{display:grid;grid-template-columns:44% minmax(0,1fr);gap:11px;padding-bottom:10px;margin-bottom:8px;border-bottom:1px dashed var(--line)}
.rceo-section__lead figure{aspect-ratio:4/3;overflow:hidden;border-radius:3px;background:#eef2f8}
.rceo-section__lead h3{font-size:15px;line-height:1.45;font-weight:700;color:var(--ink)}
.rceo-section__lead h3 a:hover{color:var(--blue-700)}
.rceo-section__lead p{font-size:12px;color:var(--ink-3);margin-top:6px}
.rceo-linklist li{
  position:relative;padding-left:12px;font-size:13.5px;line-height:2.05;color:var(--ink-2);
  border-bottom:1px solid #f1f4f9;
}
.rceo-linklist li:last-child{border-bottom:0}
.rceo-linklist li::before{content:"";position:absolute;left:1px;top:13px;width:4px;height:4px;background:var(--blue-600);border-radius:1px}
.rceo-linklist li a{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------------- 列表 / 侧栏双栏 ---------------- */
.rceo-columns{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.rceo-feed{padding:4px 20px 18px}
.rceo-news-item{
  display:grid;grid-template-columns:186px minmax(0,1fr);gap:16px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.rceo-news-item:last-child{border-bottom:0}
.rceo-news-item figure{aspect-ratio:16/10;overflow:hidden;border-radius:4px;background:#eef2f8}
.rceo-news-item h3{font-size:18px;line-height:1.4;font-weight:700;margin-bottom:7px}
.rceo-news-item h3 a:hover{color:var(--blue-700)}
.rceo-news-item p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin-bottom:9px}
.rceo-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:12px;color:var(--ink-3)}
.rceo-meta .rceo-source{color:var(--blue-700);font-weight:600}
.rceo-news-item--compact{grid-template-columns:132px minmax(0,1fr);padding:14px 0}
.rceo-news-item--compact h3{font-size:16px}

.rceo-rank li{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid #f1f4f9;font-size:13.5px;line-height:1.5}
.rceo-rank li:last-child{border-bottom:0}
.rceo-rank__no{
  flex:0 0 20px;height:20px;line-height:20px;text-align:center;border-radius:3px;
  background:#eef2f8;color:var(--ink-3);font-size:12px;font-weight:700;
}
.rceo-rank li:nth-child(-n+3) .rceo-rank__no{background:var(--blue-800);color:#fff}
.rceo-rank__meta{display:block;font-size:11.5px;color:var(--ink-3);margin-top:3px}
.rceo-side-stack{display:grid;gap:16px}
.rceo-catgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;padding:14px 16px}
.rceo-catgrid a{
  display:block;padding:9px 10px;background:var(--blue-050);border:1px solid var(--blue-100);
  border-radius:4px;color:var(--blue-800);font-size:13px;font-weight:600;text-align:center;
}
.rceo-catgrid a:hover{background:var(--blue-800);border-color:var(--blue-800);color:#fff}

.rceo-pagination{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin-top:22px}
.rceo-pagination a,.rceo-pagination span{
  min-width:34px;height:34px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink-2);font-size:13px;
}
.rceo-pagination a:hover{border-color:var(--blue-700);color:var(--blue-700)}
.rceo-pagination .is-current{background:var(--blue-800);border-color:var(--blue-800);color:#fff;font-weight:700}
.rceo-pagination .is-disabled{color:#bcc6d3;background:#fafbfd}
.rceo-empty{padding:60px 20px;text-align:center;color:var(--ink-3);font-size:15px}

/* ---------------- 文章详情页 ---------------- */
.rceo-detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.rceo-article{padding:26px 32px 32px}
.rceo-article__head{border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
.rceo-tag{
  display:inline-block;padding:3px 10px;border-radius:3px;background:var(--blue-100);
  color:var(--blue-800);font-size:12px;font-weight:700;letter-spacing:.5px;margin-bottom:12px;
}
.rceo-article__head h1{font-size:29px;line-height:1.4;font-weight:800;color:#0d1b30;letter-spacing:.3px}
.rceo-article__meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-top:14px;
  font-size:13px;color:var(--ink-3);
}
.rceo-article__meta strong{color:var(--ink-2);font-weight:600}
.rceo-article__cover{margin:0 0 22px;border-radius:5px;overflow:hidden;background:#eef2f8;max-height:440px}
.rceo-article__cover img{width:100%;max-height:440px;object-fit:cover}
.rceo-article__body{font-size:16.5px;line-height:1.95;color:#26344a;word-wrap:break-word}
.rceo-article__body p{margin:0 0 1.15em}
.rceo-article__body img{max-width:100%;height:auto;margin:14px auto;border-radius:4px}
.rceo-article__body h2,.rceo-article__body h3,.rceo-article__body h4{color:var(--blue-900);line-height:1.5;margin:1.4em 0 .7em;font-weight:700}
.rceo-article__body h2{font-size:21px;border-left:4px solid var(--blue-700);padding-left:10px}
.rceo-article__body h3{font-size:18px}
.rceo-article__body blockquote{
  margin:1.2em 0;padding:12px 16px;background:var(--blue-050);
  border-left:3px solid var(--blue-600);color:var(--ink-2);
}
.rceo-article__body a{color:var(--blue-700);text-decoration:underline}
.rceo-article__body ul,.rceo-article__body ol{padding-left:1.6em;margin:0 0 1.2em;list-style:disc}
.rceo-article__body table{max-width:100%;border-collapse:collapse}
.rceo-article__body td,.rceo-article__body th{border:1px solid var(--line);padding:7px 10px}

.rceo-article__bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.rceo-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--blue-200);
  border-radius:4px;background:#fff;color:var(--blue-800);font-size:13px;font-weight:600;
}
.rceo-btn:hover{background:var(--blue-050);border-color:var(--blue-600);color:var(--blue-700)}
.rceo-btn--solid{background:var(--blue-800);border-color:var(--blue-800);color:#fff}
.rceo-btn--solid:hover{background:var(--blue-700);border-color:var(--blue-700);color:#fff}

/* 文末二维码 */
.rceo-qr{
  display:flex;align-items:center;gap:22px;margin-top:26px;padding:20px 22px;
  background:linear-gradient(120deg,var(--blue-050),#fff);
  border:1px solid var(--blue-100);border-left:4px solid var(--blue-700);border-radius:var(--radius);
}
.rceo-qr__code{flex:0 0 auto;padding:9px;background:#fff;border:1px solid var(--blue-100);border-radius:5px;line-height:0}
.rceo-qr__code canvas,.rceo-qr__code img{width:132px;height:132px;image-rendering:pixelated}
.rceo-qr__code .rceo-qr__fallback{width:132px;height:132px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ink-3);text-align:center;line-height:1.5}
.rceo-qr__info{min-width:0}
.rceo-qr__badge{display:inline-block;font-size:11px;letter-spacing:1px;color:var(--blue-700);background:var(--blue-100);padding:2px 8px;border-radius:2px;margin-bottom:8px}
.rceo-qr__info h3{font-size:17px;color:var(--blue-900);margin-bottom:6px}
.rceo-qr__info p{font-size:13px;color:var(--ink-2);margin-bottom:8px}
.rceo-qr__url{font-size:12px;color:var(--ink-3);word-break:break-all;margin-bottom:12px}

.rceo-related{margin-top:26px}
.rceo-related__title{font-size:17px;color:var(--blue-900);font-weight:700;padding-bottom:10px;margin-bottom:14px;border-bottom:2px solid var(--blue-800)}
.rceo-related__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.rceo-related__grid figure{aspect-ratio:16/10;overflow:hidden;border-radius:4px;background:#eef2f8;margin-bottom:8px}
.rceo-related__grid h4{font-size:14px;line-height:1.5;font-weight:600}
.rceo-side-list li{padding:10px 0;border-bottom:1px solid #f1f4f9;font-size:13.5px;line-height:1.55}
.rceo-side-list li:last-child{border-bottom:0}
.rceo-side-list li a:hover{color:var(--blue-700)}
.rceo-side-list span{display:block;font-size:11.5px;color:var(--ink-3);margin-top:4px}

/* ---------------- 搜索页 ---------------- */
.rceo-search-hero{
  padding:20px 24px;margin-bottom:18px;background:linear-gradient(110deg,var(--blue-900),var(--blue-700));
  border-radius:var(--radius);color:#eaf2ff;
}
.rceo-search-hero h1{font-size:21px;color:#fff;margin-bottom:12px;font-weight:700}
.rceo-search-hero p{font-size:13px;margin-top:10px;color:#d3e3fb}
.rceo-search-hero strong{color:#fff}
.rceo-search--wide{width:100%;max-width:620px;height:42px;border-color:transparent}
.rceo-text-item{padding:16px 0;border-bottom:1px solid var(--line)}
.rceo-text-item:last-child{border-bottom:0}
.rceo-text-item h3{font-size:18px;line-height:1.45;font-weight:700;margin-bottom:8px}
.rceo-text-item h3 a:hover{color:var(--blue-700)}
.rceo-text-item p{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-bottom:9px}
.rceo-text-item mark{background:#fff0b8;color:#8a4b00;padding:0 2px;border-radius:2px}
.rceo-tip{padding:14px 16px;font-size:13px;line-height:1.9;color:var(--ink-3)}

/* ---------------- 页脚 ---------------- */
.rceo-footer{background:var(--blue-950);color:#a9c0e0;margin-top:20px;font-size:13px}
.rceo-footer__top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding:34px 0 26px;border-bottom:1px solid rgba(255,255,255,.1)}
.rceo-footer h3{color:#fff;font-size:15px;margin-bottom:14px;font-weight:700}
.rceo-footer a{color:#a9c0e0}
.rceo-footer a:hover{color:#fff}
.rceo-footer__links{display:flex;flex-wrap:wrap;gap:8px 18px}
.rceo-footer__links a{font-size:13px}
.rceo-footer__brand{font-size:19px;font-weight:800;color:#fff;letter-spacing:2px;margin-bottom:10px}
.rceo-footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:16px 0 22px;font-size:12px;color:#7f9dc7}

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .rceo-columns,.rceo-detail-grid{grid-template-columns:minmax(0,1fr);}
  .rceo-side-stack{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rceo-sections{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  .rceo-topbar{display:none}
  .rceo-masthead .rceo-wrap{min-height:66px;flex-wrap:wrap;gap:10px}
  .rceo-brand img{height:38px}
  .rceo-brand__name{font-size:17px}
  .rceo-search{width:100%;order:3}
  .rceo-nav__list a{padding:0 14px;height:42px;font-size:14px}
  .rceo-main{padding-top:14px}
  .rceo-ads{display:block;margin-bottom:16px}
  .rceo-ads__side{display:none}
  .rceo-ad-inline{display:block}
  .rceo-sections{grid-template-columns:1fr;gap:14px}
  .rceo-news-item{grid-template-columns:132px minmax(0,1fr);gap:12px;padding:13px 0}
  .rceo-news-item h3{font-size:16px;margin-bottom:5px}
  .rceo-news-item p{-webkit-line-clamp:2}
  .rceo-feed{padding:2px 14px 14px}
  .rceo-article{padding:20px 18px 26px}
  .rceo-article__head h1{font-size:23px}
  .rceo-article__body{font-size:16px}
  .rceo-related__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rceo-footer__top{grid-template-columns:1fr 1fr;gap:22px;padding:26px 0}
}
@media (max-width:560px){
  .rceo-wrap{width:calc(100% - 22px)}
  .rceo-brand__sub{display:none}
  .rceo-news-item{grid-template-columns:104px minmax(0,1fr)}
  .rceo-news-item figure,.rceo-news-item--compact figure{aspect-ratio:4/3}
  .rceo-news-item h3,.rceo-news-item--compact h3{font-size:15px;line-height:1.4}
  .rceo-news-item p{display:none}
  .rceo-meta{gap:8px;font-size:11px}
  .rceo-side-stack{grid-template-columns:1fr}
  .rceo-page-title h1{font-size:20px}
  .rceo-article__head h1{font-size:21px}
  .rceo-qr{flex-direction:column;align-items:flex-start;gap:14px;padding:16px}
  .rceo-related__grid{grid-template-columns:1fr}
  .rceo-related__grid figure{aspect-ratio:16/8}
  .rceo-pagination a,.rceo-pagination span{min-width:30px;height:30px;padding:0 7px;font-size:12px}
  .rceo-footer__top{grid-template-columns:1fr}
}