@charset "utf-8";
/*!
 * vip3mb00335 RUC style — 仿中国人民大学官网
 * 人大红 #AE0B2A | 故宫宫墙红
 * 布局分区：
 *   1. CSS 变量 & Reset
 *   2. 布局骨架（左侧栏 / EXPLORE 竖条 / 主区域 / 顶部工具栏）
 *   3. 抽屉 / 搜索浮层 / 二维码浮层
 *   4. Banner 首屏
 *   5. 通用 section title
 *   6. 8 大板块（today/learn/academics/profiles/events/flagship/social/service）
 *   7. Footer（校徽 / 4 校区 / 社交 / 友链 / 备案）
 *   8. 内页（list / article）
 *   9. 响应式与可访问性
 */

/* ============ 1. CSS 变量 & Reset ============ */

:root{
    --ruc-red:#AE0B2A;
    --ruc-red-deep:#7a0820;
    --ruc-red-soft:#c0392b;
    --ruc-gold:#c8a063;
    --ruc-cream:#faf6f1;
    --ruc-line:#e6dcd2;
    --ruc-text:#222;
    --ruc-muted:#6e6e6e;
    --ruc-side-w:140px;
    --ruc-explore-w:54px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{overflow-x:hidden}
body{font-family:"Source Han Serif","Noto Serif SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ruc-text);background:#fff;line-height:1.7;min-width:0}
ul,ol,li{list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ruc-red)}
img{display:block;max-width:100%;border:0}
h1,h2,h3,h4{font-weight:600;line-height:1.4}
button{font:inherit;color:inherit;background:transparent;border:0;cursor:pointer;padding:0}
:focus-visible{outline:2px dashed var(--ruc-gold);outline-offset:3px}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}

/* ============ 2. 左侧固定垂直导航（人大官网核心特征） ============ */
.ruc-side{position:fixed;left:0;top:0;width:var(--ruc-side-w);height:100vh;background:var(--ruc-red);color:#fff;z-index:90;display:flex;flex-direction:column;align-items:center;padding:18px 0 30px}
.ruc-side .side-back{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#f3c5be;margin-bottom:18px;padding:4px 10px;border-radius:18px;background:rgba(255,255,255,.08);font-family:inherit;text-decoration:none;cursor:pointer;transition:all .25s}
.ruc-side .side-back .arrow{font-size:18px;line-height:1}
.ruc-side .side-back:hover{color:#fff;background:rgba(255,255,255,.16)}
.ruc-side .side-logo{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:34px;padding:0 8px}
.ruc-side .side-logo img{width:60px;height:60px;object-fit:contain;background:#fff;border-radius:50%;padding:4px;box-shadow:0 2px 8px rgba(0,0,0,.18)}
.ruc-side .side-logo h1{font-size:14px;color:#fff;letter-spacing:3px;margin-top:10px;font-weight:600;line-height:1.4}
.ruc-side .side-logo em{font-style:normal;font-family:"Times New Roman",serif;font-size:9px;color:#f3c5be;letter-spacing:.5px;margin-top:4px;line-height:1.3;display:block}
.ruc-side .side-nav{flex:1;display:flex;flex-direction:column;justify-content:center;width:100%;padding:0 12px}
.ruc-side .side-nav ul li{margin:6px 0;text-align:center}
.ruc-side .side-nav ul li a{display:block;padding:10px 6px;font-size:15px;color:#fff;letter-spacing:2px;border-radius:3px;position:relative;transition:.25s}
.ruc-side .side-nav ul li a:hover,.ruc-side .side-nav ul li.active a{background:rgba(255,255,255,.14);color:#fff}
.ruc-side .side-nav ul li a::before{content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);width:0;height:2px;background:var(--ruc-gold);transition:.25s}
.ruc-side .side-nav ul li a:hover::before,.ruc-side .side-nav ul li.active a::before{width:14px}
.ruc-side .side-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px 8px;width:calc(100% - 28px);margin:14px 0}
.ruc-side .side-actions .act{font-size:12px;text-align:center;padding:6px 0;color:#f3c5be;background:rgba(0,0,0,.18);border-radius:3px;letter-spacing:1px}
.ruc-side .side-actions .act:hover{background:rgba(255,255,255,.16);color:#fff}
.ruc-side .side-history{font-family:"Times New Roman",serif;font-size:11px;color:#f3c5be;letter-spacing:6px;writing-mode:vertical-rl;transform:rotate(180deg);position:absolute;left:14px;bottom:24px;opacity:.7}

/* ============ 3. 右侧 EXPLORE 竖条（仅 banner 段可见） ============ */
.ruc-explore{position:fixed;right:0;top:0;width:var(--ruc-explore-w);height:100vh;background:var(--ruc-red);color:#fff;z-index:80;display:flex;flex-direction:column;align-items:center;justify-content:center;writing-mode:horizontal-tb;cursor:pointer;transition:opacity .3s;pointer-events:auto}
.ruc-explore .cn{font-size:14px;letter-spacing:3px;line-height:1.6;text-align:center;margin-bottom:14px}
.ruc-explore .en{font-family:"Times New Roman",serif;font-size:11px;letter-spacing:3px;writing-mode:vertical-rl;color:#f3c5be;opacity:.85}
.ruc-explore::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:36px;background:var(--ruc-gold)}
.ruc-explore.hide{opacity:0;pointer-events:none}

/* ============ 4. 主区域与顶部工具条 ============ */
.ruc-main{margin-left:var(--ruc-side-w);min-height:100vh;position:relative;background:#fff}

/* 顶部浮动工具条 */
.ruc-topbar{position:fixed;left:var(--ruc-side-w);right:0;top:0;height:54px;display:flex;align-items:center;justify-content:flex-end;padding:0 80px 0 30px;z-index:70;color:#fff;transition:.3s}
.ruc-topbar .t-inner{display:flex;align-items:center;gap:24px;font-size:14px;letter-spacing:1px}
.ruc-topbar .t-link{color:#fff}
.ruc-topbar .t-link:hover{color:var(--ruc-gold)}
.ruc-topbar .t-search{cursor:pointer;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.18);font-size:14px}
.ruc-topbar .t-en{font-family:"Times New Roman",serif;letter-spacing:2px;border:1px solid rgba(255,255,255,.5);padding:3px 10px;border-radius:14px;font-size:12px}
.ruc-topbar.solid{background:rgba(255,255,255,.96);box-shadow:0 2px 12px rgba(0,0,0,.05);color:#444}
.ruc-topbar.solid .t-link{color:#444}
.ruc-topbar.solid .t-link:hover{color:var(--ruc-red)}
.ruc-topbar.solid .t-search{background:var(--ruc-red);color:#fff}
.ruc-topbar.solid .t-en{border-color:var(--ruc-red);color:var(--ruc-red)}

/* 内页右上角搜索按钮（替代滚动后的工具条搜索） */
.ruc-search-btn{position:fixed;top:30px;right:80px;width:46px;height:46px;border-radius:50%;background:var(--ruc-red);color:#fff;display:none;align-items:center;justify-content:center;font-size:18px;cursor:pointer;z-index:75;box-shadow:0 4px 14px rgba(174,11,42,.3)}

/* 主区域左上角小 mini-nav（滚动后浮动） */
.ruc-mini-nav{position:fixed;left:var(--ruc-side-w);top:50%;transform:translateY(-50%);width:46px;background:var(--ruc-red);color:#fff;padding:14px 0;display:none;flex-direction:column;align-items:center;gap:6px;cursor:pointer;z-index:78;border-radius:0 4px 4px 0;box-shadow:2px 0 10px rgba(0,0,0,.12)}
.ruc-mini-nav .ico{font-size:20px;line-height:1}
.ruc-mini-nav .lbl{font-size:12px;letter-spacing:2px;line-height:1.3;text-align:center}

/* 抽屉 */
.ruc-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:998}
.ruc-mask.on{display:block}
.ruc-drawer{position:fixed;top:0;left:-380px;width:380px;height:100vh;background:#fff;z-index:999;transition:left .3s ease;padding:60px 36px 30px;overflow-y:auto}
.ruc-drawer.on{left:0;box-shadow:6px 0 22px rgba(0,0,0,.2)}
.ruc-drawer .close{position:absolute;top:18px;right:22px;font-size:32px;color:var(--ruc-red);cursor:pointer;line-height:1}
.ruc-drawer h3{font-size:22px;color:var(--ruc-red);margin-bottom:24px;letter-spacing:4px;border-bottom:2px solid var(--ruc-red);padding-bottom:14px}
.ruc-drawer ul li a{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--ruc-line);font-size:15px;color:#333;letter-spacing:2px}
.ruc-drawer ul li a i{font-style:normal;color:var(--ruc-red);font-size:18px}
.ruc-drawer ul li a:hover{color:var(--ruc-red);padding-left:6px}

/* search overlay */
.ruc-search-mask{display:none;position:fixed;inset:0;background:rgba(122,8,32,.95);z-index:9999;align-items:center;justify-content:center}
.ruc-search-mask form{display:flex;width:680px;max-width:90%;border-bottom:2px solid #fff}
.ruc-search-mask input{flex:1;background:transparent;border:0;outline:none;color:#fff;font-size:24px;padding:14px 8px}
.ruc-search-mask input::placeholder{color:#f3c5be}
.ruc-search-close{position:absolute;top:24px;right:34px;color:#fff;font-size:36px;cursor:pointer}

/* ============ 5. Banner 首屏（装饰不寫入语义文本以免干扰 SEO）============ */
.ruc-banner{position:relative;height:100vh;min-height:640px;overflow:hidden;background:linear-gradient(120deg,#7a0820 0%,#AE0B2A 60%,#c0392b 100%);color:#fff;margin-right:var(--ruc-explore-w)}
.ruc-banner .b-bg{position:absolute;inset:0;background:linear-gradient(180deg,rgba(122,8,32,.55),rgba(174,11,42,.35)),url('../images/banner-default.jpg') center/cover no-repeat;z-index:0}
.ruc-banner .b-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(rgba(255,255,255,.04) 2px,transparent 2px) 0 0/40px 40px;opacity:.4}
/* 轮播轨道 */
.ruc-banner .b-slides{position:absolute;inset:0;z-index:1}
.ruc-banner .b-slide{position:absolute;inset:0;display:block;opacity:0;visibility:hidden;transition:opacity 1s ease,visibility 1s;text-decoration:none;color:#fff}
.ruc-banner .b-slide.on{opacity:1;visibility:visible;z-index:2}
.ruc-banner .b-slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.ruc-banner .b-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(122,8,32,.35) 0%,rgba(122,8,32,.15) 40%,rgba(0,0,0,.65) 100%)}
.ruc-banner .b-slide .b-cap{position:absolute;left:60px;right:calc(var(--ruc-explore-w) + 220px);bottom:96px;z-index:3;font-size:30px;line-height:1.45;color:#fff;font-weight:600;text-shadow:0 4px 16px rgba(0,0,0,.5);letter-spacing:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-banner .b-title{position:absolute;left:0;right:0;bottom:0;padding:18px var(--ruc-explore-w) 22px 60px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.7));font-size:18px;letter-spacing:4px;color:rgba(255,255,255,.85);font-weight:500;z-index:3;line-height:1.5}
.ruc-banner .b-dots{position:absolute;right:calc(var(--ruc-explore-w) + 30px);bottom:34px;display:flex;align-items:center;gap:8px;z-index:4;color:#fff}
.ruc-banner .b-dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;display:inline-block;transition:.2s;font-size:0}
.ruc-banner .b-dots span.on{background:transparent;border:1px solid #fff;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-family:"Times New Roman",serif}
/* 箭头 */
.ruc-banner .b-prev,.ruc-banner .b-next{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(0,0,0,.25);color:#fff;font-size:30px;line-height:46px;text-align:center;border:1px solid rgba(255,255,255,.3);z-index:5;cursor:pointer;transition:all .25s;opacity:0}
.ruc-banner:hover .b-prev,.ruc-banner:hover .b-next,.ruc-banner .b-prev:focus-visible,.ruc-banner .b-next:focus-visible{opacity:1}
.ruc-banner .b-prev{left:24px}
.ruc-banner .b-next{right:24px}
.ruc-banner .b-prev:hover,.ruc-banner .b-next:hover{background:var(--ruc-red);border-color:var(--ruc-red)}

/* ============ 6. 通用 section title ============ */
.ruc-stitle{display:flex;align-items:flex-end;gap:14px;margin-bottom:30px;flex-wrap:wrap}
.ruc-stitle h2{font-size:38px;color:var(--ruc-red);letter-spacing:8px;font-weight:600;font-family:"Source Han Serif","Noto Serif SC",serif;line-height:1}
.ruc-stitle em{font-style:normal;font-family:"Times New Roman",serif;font-size:22px;color:#666;letter-spacing:3px;font-weight:400;line-height:1;padding-bottom:4px}
.ruc-stitle .desc{flex:1;font-size:13px;color:var(--ruc-muted);letter-spacing:2px;padding-bottom:6px;margin-left:6px}
.ruc-stitle .more{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ruc-muted);letter-spacing:2px;padding-bottom:6px}
.ruc-stitle .more i{display:inline-grid;grid-template-columns:1fr 1fr;gap:2px;width:14px;height:14px}
.ruc-stitle .more i::before,.ruc-stitle .more i::after{content:"";background:var(--ruc-red);width:6px;height:6px}
.ruc-stitle .more i b{background:var(--ruc-red);width:6px;height:6px;display:block}
.ruc-stitle .more:hover{color:var(--ruc-red)}
.ruc-section{padding:80px 80px 70px 60px}

/* 各板块公用 padding（可被各板块覆盖） */
.ruc-section,
.ruc-today,
.ruc-learn,
.ruc-events,
.ruc-flagship,
.ruc-social{padding:80px 80px 70px 60px;background:#fff}

/* ---------- 6.1 今日人大 RUC TODAY ---------- */
.ruc-today{padding:80px 80px 70px 60px;background:#fff}
.ruc-today .t-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:50px}
.ruc-today .t-grid > *{min-width:0}
.ruc-today .t-feat{position:relative}
.ruc-today .t-feat .pic{height:380px;border-radius:2px;overflow:hidden;background:var(--ruc-cream)}
.ruc-today .t-feat .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.ruc-today .t-feat:hover .pic img{transform:scale(1.04)}
.ruc-today .t-feat .info{padding:20px 0 0}
.ruc-today .t-feat .info h3{font-size:20px;color:#222;line-height:1.5;margin-bottom:14px;font-weight:600}
.ruc-today .t-feat .info p{font-size:14px;color:var(--ruc-muted);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-today .t-feat .dots{display:flex;gap:6px;margin-top:18px}
.ruc-today .t-feat .dots span{width:30px;height:3px;background:#ddd}
.ruc-today .t-feat .dots span.on{background:var(--ruc-red)}
.ruc-today .t-list{display:grid;grid-template-columns:1fr 1fr;gap:22px 36px;align-content:start;border-bottom:1px solid var(--ruc-line);padding-bottom:30px;margin-bottom:30px}
.ruc-today .t-list a{display:block}
.ruc-today .t-list a h3{font-size:15px;color:#222;line-height:1.55;margin-bottom:10px;padding-left:18px;position:relative;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-today .t-list a h3::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border:1px solid var(--ruc-red);background:transparent}
.ruc-today .t-list a:hover h3{color:var(--ruc-red)}
.ruc-today .t-list a:hover h3::before{background:var(--ruc-red)}
.ruc-today .t-list a .d{padding-left:18px;font-size:13px;color:var(--ruc-red);font-family:"Times New Roman",serif;letter-spacing:1px}
.ruc-today .t-topic{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:center}
.ruc-today .t-topic .pic{height:160px;border-radius:2px;overflow:hidden;background:linear-gradient(135deg,#7a0820,#AE0B2A)}
.ruc-today .t-topic .pic img{width:100%;height:100%;object-fit:cover}
.ruc-today .t-topic .meta{padding-left:14px}
.ruc-today .t-topic .meta h2{font-size:30px;color:var(--ruc-red);letter-spacing:6px;margin-bottom:14px}
.ruc-today .t-topic .meta p{font-size:14px;color:#444;line-height:1.7}
.ruc-today .t-topic .meta .arrows{margin-top:18px;display:flex;gap:10px}
.ruc-today .t-topic .meta .arrows span{width:36px;height:36px;border:1px solid #ddd;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#999;cursor:pointer}
.ruc-today .t-topic .meta .arrows span:hover{border-color:var(--ruc-red);color:var(--ruc-red)}

/* ============ 2) 学而时习 THEORETICAL LEARNING ============ */
.ruc-learn{padding:70px 80px 70px 60px;background:#fff}
.ruc-learn .l-grid{display:grid;grid-template-columns:280px repeat(3,minmax(0,1fr));gap:36px;align-items:start}
.ruc-learn .l-grid > *{min-width:0}
.ruc-learn .l-tt h2{font-size:34px;color:var(--ruc-red);letter-spacing:8px;line-height:1.2}
.ruc-learn .l-tt em{font-style:normal;font-family:"Times New Roman",serif;font-size:18px;color:#888;letter-spacing:2px;display:block;margin-top:8px}
.ruc-learn .l-tt .more{margin-top:60px;display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--ruc-muted)}
.ruc-learn .l-tt .more b{display:grid;grid-template-columns:1fr 1fr;gap:2px;width:12px;height:12px}
.ruc-learn .l-tt .more b::before,.ruc-learn .l-tt .more b::after{content:"";background:var(--ruc-red);width:5px;height:5px}
.ruc-learn .l-col{display:flex;flex-direction:column;gap:30px}
.ruc-learn .l-col .item .src{font-size:13px;color:var(--ruc-red);letter-spacing:1px;font-weight:600;margin-bottom:8px}
.ruc-learn .l-col .item .tt{font-size:15px;color:#222;line-height:1.6;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-learn .l-col .item:hover .tt{color:var(--ruc-red)}

/* ============ 3) 人大学术 RUC ACADEMICS（马赛克网格） ============ */
.ruc-academics{padding:0;background:#fff;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(2,300px);gap:0}
.ruc-academics .ac-cell{position:relative;overflow:hidden;background:var(--ruc-red);color:#fff}
.ruc-academics .ac-cell .pic{position:absolute;inset:0}
.ruc-academics .ac-cell .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.ruc-academics .ac-cell:hover .pic img{transform:scale(1.05)}
.ruc-academics .ac-cell .tag{position:absolute;left:22px;top:22px;background:var(--ruc-red);color:#fff;font-size:13px;padding:6px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.4);letter-spacing:2px;z-index:2}
.ruc-academics .ac-cell .ttl{position:absolute;left:22px;right:22px;bottom:22px;font-size:16px;color:#fff;line-height:1.55;font-weight:600;text-shadow:0 2px 8px rgba(0,0,0,.4);z-index:2;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-academics .ac-cell.intro{background:var(--ruc-red);color:#fff;padding:40px;display:flex;flex-direction:column;justify-content:center}
.ruc-academics .ac-cell.intro .h{font-size:34px;letter-spacing:6px;font-weight:600;margin-bottom:6px}
.ruc-academics .ac-cell.intro .e{font-family:"Times New Roman",serif;font-size:18px;color:#f3c5be;letter-spacing:3px;margin-bottom:20px}
.ruc-academics .ac-cell.intro p{font-size:13px;color:#fff;opacity:.92;line-height:1.85;text-align:justify}
.ruc-academics .ac-cell.intro .more{align-self:flex-end;margin-top:16px;font-size:13px;color:#fff;display:flex;align-items:center;gap:8px}
.ruc-academics .ac-cell.feature{grid-column:span 2;grid-row:span 1;background:linear-gradient(180deg,#e8d8b0,#cbb88c)}
.ruc-academics .ac-cell.dark{background:#7a0820}
.ruc-academics .ac-cell.dark .ttl{position:relative;padding:40px;font-size:15px;line-height:1.7}
.ruc-academics .ac-cell.dark::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.04) 0,transparent 60%);pointer-events:none}
.ruc-academics .ac-cell.dark::after{content:"";position:absolute;right:14px;top:14px;width:38px;height:38px;border:1px dashed rgba(255,255,255,.25);border-radius:50%}

/* ---------- 6.4 人大·人物 RUC PROFILES ---------- */
.ruc-profiles{padding:80px 80px 80px 60px;background:linear-gradient(180deg,#fff 0%,#fbe9ec 100%);position:relative;overflow:hidden}
.ruc-profiles::before{content:"";position:absolute;left:30%;top:30%;width:340px;height:340px;border-radius:50%;background:radial-gradient(rgba(174,11,42,.05),transparent 70%);pointer-events:none}
.ruc-profiles .p-grid{display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:24px;position:relative;z-index:2}
.ruc-profiles .p-grid > *{min-width:0}
.ruc-profiles .p-side{display:flex;flex-direction:column;gap:24px}
.ruc-profiles .p-card{position:relative;border-radius:2px;overflow:hidden;background:#fff;box-shadow:0 6px 22px rgba(0,0,0,.06)}
.ruc-profiles .p-card .pic{height:230px;overflow:hidden;background:var(--ruc-cream)}
.ruc-profiles .p-card .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.ruc-profiles .p-card:hover .pic img{transform:scale(1.04)}
.ruc-profiles .p-card .meta{padding:14px 0 0}
.ruc-profiles .p-card .meta .tag{display:inline-block;font-size:13px;color:var(--ruc-red);font-weight:600;margin-bottom:6px;letter-spacing:1px}
.ruc-profiles .p-card .meta .ttl{font-size:15px;color:#222;line-height:1.6;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-profiles .p-feat{background:#fff;border-radius:2px;overflow:hidden;box-shadow:0 8px 28px rgba(0,0,0,.08)}
.ruc-profiles .p-feat .pic{height:480px;overflow:hidden;position:relative;background:var(--ruc-cream)}
.ruc-profiles .p-feat .pic img{width:100%;height:100%;object-fit:cover}
.ruc-profiles .p-feat .pic .name{position:absolute;left:30px;bottom:30px;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.ruc-profiles .p-feat .pic .name h3{font-size:32px;letter-spacing:6px;margin-bottom:8px;font-weight:600}
.ruc-profiles .p-feat .pic .name p{font-size:14px;opacity:.9;letter-spacing:2px}
.ruc-profiles .p-feat .body{padding:30px}
.ruc-profiles .p-feat .body .tag{display:inline-block;color:var(--ruc-red);font-size:14px;font-weight:600;letter-spacing:1px;margin-bottom:12px}
.ruc-profiles .p-feat .body h2{font-size:22px;color:#222;line-height:1.5;margin-bottom:16px;font-weight:600}
.ruc-profiles .p-feat .body p{font-size:14px;color:var(--ruc-muted);line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-align:justify}
.ruc-profiles .p-feat .body .more-row{display:flex;justify-content:flex-end;margin-top:16px;font-size:13px;color:var(--ruc-muted)}

/* ---------- 6.5 精彩人大 RUC EVENTS ---------- */
.ruc-events{padding:80px 80px 70px 60px;background:#f7f5f3}
.ruc-events .e-row{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
.ruc-events .e-row::-webkit-scrollbar{height:6px}
.ruc-events .e-row::-webkit-scrollbar-thumb{background:#ddd;border-radius:3px}
.ruc-events .e-card{flex:0 0 220px;scroll-snap-align:start}
.ruc-events .e-card .pic{height:300px;background:var(--ruc-cream);border-radius:2px;overflow:hidden;margin-bottom:14px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.ruc-events .e-card .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.ruc-events .e-card:hover .pic img{transform:scale(1.04)}
.ruc-events .e-card .ttl{font-size:15px;color:#222;line-height:1.55;font-weight:600;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.ruc-events .e-card .meta{font-size:13px;color:var(--ruc-muted);letter-spacing:1px;line-height:1.7}
.ruc-events .e-card .meta b{display:block;font-weight:400;color:#444}

/* ---------- 6.6 文化·旗舰 FLAGSHIP CULTURAL BRANDS ---------- */
.ruc-flagship{padding:80px 80px 70px 60px;background:#fff}
.ruc-flagship .f-feat{background:linear-gradient(135deg,#fde4d6 0%,#fff5e8 50%,#fde4d6 100%);border-radius:4px;padding:50px;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:50px;align-items:center;position:relative;overflow:hidden;margin-bottom:50px}
.ruc-flagship .f-feat::before{content:"";position:absolute;left:6%;bottom:0;width:50%;height:65%;background:radial-gradient(ellipse at center bottom,rgba(174,11,42,.08),transparent 70%);pointer-events:none}
.ruc-flagship .f-feat .left h2{font-size:48px;letter-spacing:6px;color:#222;font-weight:700;line-height:1.3;margin-bottom:24px}
.ruc-flagship .f-feat .left h2 b{color:var(--ruc-red);font-weight:700;position:relative}
.ruc-flagship .f-feat .left h2 b::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:8px;background:var(--ruc-red);opacity:.18;z-index:-1}
.ruc-flagship .f-feat .left p{font-size:14px;color:#444;line-height:1.95;text-align:justify;margin-bottom:24px}
.ruc-flagship .f-feat .left .more-circle{display:inline-flex;align-items:center;gap:14px;font-size:13px;color:#444}
.ruc-flagship .f-feat .left .more-circle i{width:42px;height:42px;border:1px solid #999;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-style:normal;color:#444}
.ruc-flagship .f-feat .left .more-circle:hover i{background:var(--ruc-red);border-color:var(--ruc-red);color:#fff}
.ruc-flagship .f-feat .right .pic{height:240px;border-radius:2px;overflow:hidden;background:var(--ruc-cream)}
.ruc-flagship .f-feat .right .pic img{width:100%;height:100%;object-fit:cover}
.ruc-flagship .f-feat .right .ttl{margin-top:16px;font-size:16px;color:#222;font-weight:600;line-height:1.55}
.ruc-flagship .f-feat .right .d{margin-top:8px;font-size:12px;color:var(--ruc-red);font-family:"Times New Roman",serif}
.ruc-flagship .f-logos{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:30px 50px;align-items:center;justify-items:center;padding:20px 0}
.ruc-flagship .f-logos a{display:flex;align-items:center;justify-content:center;height:54px;font-size:15px;color:#444;letter-spacing:2px;font-weight:500;opacity:.75;transition:.2s;text-align:center}
.ruc-flagship .f-logos a:hover{opacity:1;color:var(--ruc-red)}
.ruc-flagship .f-dots{display:flex;justify-content:center;gap:8px;margin-top:36px}
.ruc-flagship .f-dots span{width:30px;height:3px;background:#ddd}
.ruc-flagship .f-dots span.on{background:var(--ruc-red)}

/* ---------- 6.7 人大广角 SOCIAL MEDIA ---------- */
.ruc-social{padding:80px 80px 70px 60px;background:#fff;position:relative;overflow:hidden}
.ruc-social::before{content:"";position:absolute;right:-40px;top:30%;width:300px;height:300px;border-radius:50%;background:radial-gradient(rgba(174,11,42,.05),transparent 70%);pointer-events:none}
.ruc-social .s-head{display:flex;align-items:flex-start;gap:30px;margin-bottom:30px;position:relative;z-index:2}
.ruc-social .s-head h2{font-size:48px;color:var(--ruc-red);letter-spacing:6px;line-height:1.1;writing-mode:vertical-rl;font-weight:700}
.ruc-social .s-head em{font-style:normal;font-family:"Times New Roman",serif;font-size:14px;color:#888;letter-spacing:3px;writing-mode:vertical-rl;margin-left:8px;line-height:1.4}
.ruc-social .s-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);grid-template-rows:240px 240px;gap:14px;position:relative;z-index:2}
.ruc-social .s-grid > *{min-width:0}
.ruc-social .s-cell{position:relative;border-radius:2px;overflow:hidden;background:var(--ruc-cream)}
.ruc-social .s-cell img{width:100%;height:100%;object-fit:cover;transition:.4s}
.ruc-social .s-cell:hover img{transform:scale(1.04)}
.ruc-social .s-cell.big{grid-column:1;grid-row:1 / span 1}
.ruc-social .s-cell.tall{grid-column:3;grid-row:1 / span 2}
.ruc-social .s-cell .platform{position:absolute;left:14px;bottom:14px;background:rgba(0,0,0,.55);color:#fff;padding:4px 10px;border-radius:14px;font-size:12px;display:flex;align-items:center;gap:6px;z-index:2}
.ruc-social .s-cell .platform b{display:inline-block;width:14px;height:14px;background:#ff4d4f;border-radius:2px;font-size:9px;color:#fff;text-align:center;line-height:14px;font-weight:400}
.ruc-social .s-cell .ttl{position:absolute;left:14px;right:14px;bottom:48px;color:#fff;font-size:14px;line-height:1.5;text-shadow:0 2px 8px rgba(0,0,0,.5);font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ruc-social .s-refresh{position:absolute;right:30px;bottom:-22px;width:54px;height:54px;border-radius:50%;background:#fff;box-shadow:0 4px 16px rgba(0,0,0,.12);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:5;color:#444;font-size:20px}
.ruc-social .s-refresh:hover{color:var(--ruc-red);transform:rotate(90deg);transition:.3s}

/* ---------- 6.8 服务图标行 ---------- */
.ruc-service{padding:50px 80px 60px 60px;background:#fff;border-top:1px solid var(--ruc-line)}
.ruc-service .sv-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
.ruc-service .sv-grid > *{min-width:0}
.ruc-service .sv-item{display:flex;flex-direction:column;align-items:center;text-align:center;padding:18px 6px;border-radius:6px;transition:.2s;color:#333}
.ruc-service .sv-item:hover{background:var(--ruc-cream);transform:translateY(-3px);color:var(--ruc-red)}
.ruc-service .sv-item .ico{width:62px;height:62px;border-radius:50%;background:var(--ruc-cream);color:var(--ruc-red);display:flex;align-items:center;justify-content:center;margin-bottom:10px;border:1px solid var(--ruc-line);position:relative}
.ruc-service .sv-item .ico::before{content:"";width:18px;height:18px;border:2px solid var(--ruc-red);border-radius:50%}
.ruc-service .sv-item .ico::after{content:"";position:absolute;width:8px;height:8px;background:var(--ruc-red);border-radius:50%;top:14px;right:14px}
.ruc-service .sv-item .lbl{font-size:14px;letter-spacing:1px}

/* ============ 7. Footer（校徽 / 4 校区 / 社交 / 友链 / 备案）============ */
.ruc-footer{position:relative;background:linear-gradient(180deg,rgba(122,8,32,.92),rgba(122,8,32,.96)),url('../images/footer-bg.jpg') center/cover no-repeat;color:#f3c5be;padding:60px 80px 30px 60px;overflow:hidden}
.ruc-footer::before{content:"";position:absolute;inset:0;background:rgba(122,8,32,.86);pointer-events:none;z-index:0}
.ruc-footer > *{position:relative;z-index:2}
.ruc-footer .f-row{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,2fr);gap:60px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.16)}
.ruc-footer .f-emblem{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding-right:30px}
.ruc-footer .f-emblem img{width:120px;height:120px;background:transparent;border-radius:50%;padding:6px;border:1px solid rgba(255,255,255,.2)}
.ruc-footer .f-emblem h2{margin-top:18px;font-size:26px;color:#fff;letter-spacing:8px;font-weight:600;font-family:"Source Han Serif",serif}
.ruc-footer .f-emblem em{font-style:normal;display:block;margin-top:4px;font-family:"Times New Roman",serif;font-size:13px;color:#f3c5be;letter-spacing:3px}
.ruc-footer .f-campus{display:grid;grid-template-columns:1fr 1fr;gap:24px 50px;align-content:center}
.ruc-footer .f-campus .c{padding-left:14px;border-left:2px solid rgba(255,255,255,.3)}
.ruc-footer .f-campus .c h3{font-size:16px;color:#fff;letter-spacing:2px;margin-bottom:8px;font-weight:600}
.ruc-footer .f-campus .c p{font-size:13px;color:#f3c5be;line-height:1.7;letter-spacing:1px}
.ruc-footer .f-social{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;padding:28px 0 22px;border-bottom:1px solid rgba(255,255,255,.16);margin-bottom:18px;list-style:none}
.ruc-footer .f-social li{margin:0}
.ruc-footer .f-social .s-icn{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;border:1px solid rgba(255,255,255,.18);transition:.2s;font-family:inherit}
.ruc-footer .f-social .s-icn:hover,
.ruc-footer .f-social .s-icn:focus-visible{background:#fff;color:var(--ruc-red);transform:translateY(-2px)}
.ruc-footer .f-flinks{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:22px;padding:0;list-style:none}
.ruc-footer .f-flinks:empty{display:none}
.ruc-footer .f-flinks > a,
.ruc-footer .f-flinks li{font-size:13px;color:#f3c5be;position:relative;padding-right:18px;display:inline-block}
.ruc-footer .f-flinks > a::after,
.ruc-footer .f-flinks li::after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:1px;height:12px;background:rgba(255,255,255,.3)}
.ruc-footer .f-flinks > a:last-child,
.ruc-footer .f-flinks li:last-child{padding-right:0}
.ruc-footer .f-flinks > a:last-child::after,
.ruc-footer .f-flinks li:last-child::after{display:none}
.ruc-footer .f-flinks li a{color:#f3c5be;opacity:.85}
.ruc-footer .f-flinks > a{color:#f3c5be;opacity:.85}
.ruc-footer .f-flinks > a:hover,
.ruc-footer .f-flinks li a:hover{color:#fff;opacity:1}
.ruc-footer .copy{text-align:center;font-size:12px;color:#f3c5be;line-height:1.9;letter-spacing:1px;display:flex;flex-wrap:wrap;justify-content:center;gap:0 18px}
.ruc-footer .copy span{position:relative}
.ruc-footer .copy span + span:not(.copy-tech):not(.copy-org)::before{content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);width:1px;height:11px;background:rgba(255,255,255,.25)}
.ruc-footer .copy .copy-tech,
.ruc-footer .copy .copy-org{flex-basis:100%;display:block;text-align:center;margin-top:4px}
.ruc-footer .copy a{color:#f3c5be}
.ruc-footer .copy a:hover{color:#fff}

/* 二维码浮层（.s-icn 点击触发）*/
.ruc-qrcode-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:9998;align-items:center;justify-content:center}
.ruc-qrcode-mask .qr-box{background:#fff;border-radius:6px;padding:28px 36px;text-align:center;width:280px;box-shadow:0 18px 40px rgba(0,0,0,.3);position:relative}
.ruc-qrcode-mask .qr-close{position:absolute;top:8px;right:14px;font-size:26px;line-height:1;color:#666}
.ruc-qrcode-mask .qr-close:hover{color:var(--ruc-red)}
.ruc-qrcode-mask h3{font-size:18px;color:var(--ruc-red);letter-spacing:3px;margin-bottom:16px}
.ruc-qrcode-mask .qr-img{width:180px;height:180px;margin:0 auto 12px;background:repeating-linear-gradient(45deg,#222 0 6px,#fff 6px 12px);display:flex;align-items:center;justify-content:center;color:#fff;font-size:30px;font-family:monospace;letter-spacing:6px}
.ruc-qrcode-mask .qr-tip{color:#666;font-size:12px;letter-spacing:1px}

/* ============ 8. 内页（list / article）============ */
/* ---------- list ---------- */
.ruc-page-banner{position:relative;height:280px;background:linear-gradient(120deg,#7a0820,#AE0B2A);display:flex;align-items:center;color:#fff;padding-left:80px;margin-right:0}
.ruc-page-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(rgba(255,255,255,.06) 2px,transparent 2px) 0 0/30px 30px;opacity:.6}
.ruc-page-banner h2{position:relative;font-size:36px;letter-spacing:8px;margin-bottom:12px;font-weight:700}
.ruc-page-banner .crumb{position:relative;font-size:13px;opacity:.9;letter-spacing:1px}
.ruc-page-banner .crumb a{color:#fff}
.ruc-list-wrap{padding:50px 80px 70px 60px;background:#fafafa;min-height:calc(100vh - 280px)}
.ruc-list-wrap .layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;align-items:flex-start}
.ruc-list-wrap .layout > *{min-width:0}
.ruc-aside-col{background:#fff;border-radius:2px;overflow:hidden;border:1px solid var(--ruc-line)}
.ruc-aside-col .side-tt{background:var(--ruc-red);color:#fff;padding:14px 22px;font-size:18px;letter-spacing:3px;font-weight:600}
.ruc-aside-col ul li{border-bottom:1px solid var(--ruc-line)}
.ruc-aside-col ul li:last-child{border-bottom:0}
.ruc-aside-col ul li a{display:block;padding:14px 22px;font-size:14.5px;color:#333;border-left:3px solid transparent;letter-spacing:1px}
.ruc-aside-col ul li a:hover,.ruc-aside-col ul li a.thisclass,.ruc-aside-col ul li.active a{background:#fdf3ee;color:var(--ruc-red);border-left-color:var(--ruc-red)}
.ruc-main-col{background:#fff;border-radius:2px;padding:30px 36px;border:1px solid var(--ruc-line)}
.ruc-main-col .arc-list li{padding:18px 0;border-bottom:1px dashed var(--ruc-line);display:flex;justify-content:space-between;gap:20px;align-items:center}
.ruc-main-col .arc-list li a{flex:1;font-size:15.5px;color:#222;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-left:22px;position:relative}
.ruc-main-col .arc-list li a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:7px;height:7px;background:var(--ruc-red)}
.ruc-main-col .arc-list li .date{font-size:13px;color:var(--ruc-muted);font-family:"Times New Roman",serif}
.ruc-pager{margin-top:30px;text-align:center}
.ruc-pager .pagelist{display:inline-flex;gap:6px;flex-wrap:wrap;justify-content:center}
.ruc-pager .pagelist li{display:inline-block}
.ruc-pager .pagelist li a,.ruc-pager .pagelist li span{display:inline-block;padding:6px 14px;border:1px solid var(--ruc-line);background:#fff;color:#444;font-size:13px}
.ruc-pager .pagelist li.thisclass span,.ruc-pager .pagelist li a:hover{background:var(--ruc-red);color:#fff;border-color:var(--ruc-red)}

/* ---------- article ---------- */
.ruc-article{padding:50px 80px 70px 60px;background:#fafafa;min-height:calc(100vh - 280px)}
.ruc-article .layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:36px;align-items:flex-start}
.ruc-article .layout > *{min-width:0}
.ruc-article .article-box{background:#fff;border-radius:2px;padding:40px 50px;border:1px solid var(--ruc-line)}
.ruc-article .article-box h1{font-size:30px;color:var(--ruc-red);text-align:center;line-height:1.5;letter-spacing:1px;margin-bottom:16px;font-weight:700}
.ruc-article .article-meta{text-align:center;color:var(--ruc-muted);font-size:13px;padding:14px 0 18px;border-bottom:1px solid var(--ruc-line);margin-bottom:24px}
.ruc-article .article-meta span{margin:0 10px}
.ruc-article .article-content{font-size:16px;line-height:2;color:#333}
.ruc-article .article-content p{margin-bottom:14px}
.ruc-article .article-content img{max-width:100%;height:auto;margin:14px auto;display:block;border-radius:2px}
.ruc-article .article-pn{margin-top:30px;padding:18px;background:var(--ruc-cream);border-left:3px solid var(--ruc-red);font-size:14px}
.ruc-article .article-pn p{padding:4px 0}
.ruc-article .article-pn a{color:#222}
.ruc-article .article-pn a:hover{color:var(--ruc-red)}

/* ============ 9. 响应式与可访问性 ============ */
@media (max-width:1380px){
    .ruc-banner .b-slide .b-cap{font-size:22px;letter-spacing:2px;left:30px;right:30px;bottom:80px}
    .ruc-flagship .f-feat .left h2{font-size:38px}
    .ruc-section,.ruc-today,.ruc-learn,.ruc-profiles,.ruc-events,.ruc-flagship,.ruc-social,.ruc-service{padding-left:50px;padding-right:60px}
    .ruc-page-banner{padding-left:60px}
    .ruc-list-wrap,.ruc-article{padding-left:50px;padding-right:60px}
    .ruc-footer{padding-left:50px;padding-right:60px}
}
@media (max-width:1200px){
    :root{--ruc-explore-w:0px}
    .ruc-explore{display:none}
    .ruc-banner{margin-right:0}
}