/* ============================================================
   UKAssignment 留学生作业栏目页 - 样式表
   依赖：index.css（提供 :root 变量 / 通用组件 / 动画基础）
   引用：<link rel="stylesheet" href="/skin/css/index.css">
   布局：栏目封面（双列）+ 文章列表/侧栏 + 相关推荐 + CTA
   ============================================================ */

  /* ===== 面包屑 ===== */
  .breadcrumb{
    background:var(--paper);
    border-bottom:1px solid var(--line);
    font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif;
    color:var(--muted);
  }
  .breadcrumb .wrap{display:flex;align-items:center;gap:8px;min-height:42px;flex-wrap:wrap}
  .breadcrumb a{color:var(--navy-700);transition:color .2s}
  .breadcrumb a:hover{color:var(--gold-700)}
  .breadcrumb .sep{color:var(--line)}
  .breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600}

  /* ===== 栏目封面 ===== */
  .column-hero{
    position:relative;overflow:hidden;color:#fff;
    background:linear-gradient(135deg,var(--navy-950) 0%,var(--navy-800) 55%,var(--navy-700) 100%);
    padding:64px 0 56px;
  }
  .column-hero::before{
    content:"";position:absolute;inset:0;opacity:.55;
    background:
      radial-gradient(circle at 12% 22%,rgba(176,141,87,.22),transparent 30%),
      radial-gradient(circle at 88% 12%,rgba(201,169,97,.18),transparent 28%);
  }
  .column-hero::after{
    content:"";position:absolute;inset:auto -8% -40% auto;width:480px;height:480px;border-radius:50%;
    border:1px solid rgba(220,194,138,.14);
  }
  .column-hero-inner{
    position:relative;z-index:1;
    display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:center;
  }
  .hero-main{min-width:0}
  .column-hero .eyebrow{margin-bottom:18px}
  .column-hero h1{
    margin:0;font-size:clamp(30px,4.2vw,48px);line-height:1.18;letter-spacing:-.6px;
    font-family:Georgia,"Songti SC",serif;
  }
  .column-hero .lead{
    color:#cdd6e3;font-size:16px;margin:18px 0 0;max-width:680px;
    font-family:-apple-system,"PingFang SC",sans-serif;line-height:1.85;
  }
  .column-stats{
    margin-top:30px;display:flex;gap:36px;flex-wrap:wrap;
    padding-top:24px;border-top:1px solid rgba(220,194,138,.22);
  }
  .column-stats .stat{display:flex;flex-direction:column;gap:4px}
  .column-stats .stat b{
    color:var(--gold-400);font-size:30px;line-height:1;font-family:Georgia,serif;letter-spacing:.5px;
  }
  .column-stats .stat span{
    color:#aeb8c6;font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif;
  }

  /* ===== 栏目封面右侧 aside（二维码区） ===== */
  .hero-aside{position:relative;z-index:1}
  .aside-card{
    background:rgba(251,249,243,.97);color:var(--ink);
    border-radius:20px;padding:24px;
    border:1px solid rgba(220,194,138,.5);
    box-shadow:0 24px 60px rgba(0,0,0,.28);
    position:relative;overflow:hidden;
  }
  .aside-card::before{
    content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;
    background:radial-gradient(circle,rgba(176,141,87,.18),transparent 70%);
  }
  .qr-head{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    position:relative;z-index:1;margin-bottom:4px;
  }
  .aside-card > p,.aside-card .qr-head + p{
    margin:0 0 14px;color:var(--muted);font-size:13px;
    font-family:-apple-system,"PingFang SC",sans-serif;position:relative;z-index:1;
  }
  .aside-qr h2{
    margin:0;font-size:20px;color:var(--navy-900);
    font-family:Georgia,"Songti SC",serif;letter-spacing:.3px;
  }
  .qr-badge{
    flex:none;font-size:10px;font-weight:700;letter-spacing:.5px;color:#fff;
    background:linear-gradient(135deg,var(--gold-600),var(--gold-400));
    padding:3px 8px;border-radius:999px;font-family:-apple-system,sans-serif;
  }
  .qr-wrap{
    position:relative;z-index:1;width:100%;aspect-ratio:1;
    padding:8px;background:#fff;border-radius:12px;
    border:1px solid var(--line);
    box-shadow:0 8px 22px rgba(13,27,46,.08);
  }
  .qr-wrap img{display:block;width:100%;height:100%;object-fit:contain;border-radius:6px}
  .qr-wrap::after{
    content:"";position:absolute;inset:-5px;border-radius:16px;pointer-events:none;
    border:1px dashed rgba(176,141,87,.4);
  }
  .qr-grid{
    display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative;z-index:1;margin:0 auto 14px;
  }
  .qr-item{display:flex;flex-direction:column;align-items:center;gap:8px}
  .qr-name{
    font-size:12px;font-weight:600;color:var(--navy-700);letter-spacing:.3px;
    font-family:-apple-system,"PingFang SC",sans-serif;
  }
  .qr-contacts{
    list-style:none;margin:0 0 14px;padding:12px 0 0;display:flex;flex-direction:column;gap:8px;
    border-top:1px solid var(--line);position:relative;z-index:1;
  }
  .qr-contacts li{
    display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;
    font-family:-apple-system,"PingFang SC",sans-serif;
  }
  .qr-contacts .qr-label{
    color:var(--muted);font-size:12px;flex:none;width:42px;
  }
  .qr-contacts b{color:var(--navy-900);font-weight:600;letter-spacing:.2px}
  .aside-cta{
    display:flex;align-items:center;justify-content:center;width:100%;margin-top:0;
    position:relative;z-index:1;min-height:42px;font-size:14px;
  }

  /* ===== 文章主体布局 ===== */
  .article-section{padding:56px 0 64px}
  .article-layout{
    display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start;
  }

  /* ===== 筛选条 ===== */
  .filter-bar{
    display:flex;align-items:center;gap:16px;flex-wrap:wrap;
    padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:0 8px 22px rgba(13,27,46,.05);margin-bottom:24px;position:sticky;top:84px;z-index:20;
  }
  .filter-tabs{display:flex;gap:6px;flex-wrap:wrap}
  .filter-tab{
    padding:8px 14px;border-radius:999px;border:1px solid transparent;background:transparent;
    color:var(--navy-800);font-size:13px;font-weight:600;cursor:pointer;
    font-family:-apple-system,"PingFang SC",sans-serif;transition:.22s;white-space:nowrap;
  }
  .filter-tab:hover{background:var(--cream);color:var(--gold-700)}
  .filter-tab.is-active{
    background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
    color:#fff;border-color:var(--gold-500);box-shadow:0 6px 16px rgba(13,27,46,.18);
  }

  /* 排序选择（在 filter-bar 内部，单独一行靠左） */
  .filter-sort{
    display:flex;align-items:center;justify-content:flex-start;gap:6px;
    flex-basis:100%;margin-top:10px;color:var(--muted);
    font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif;white-space:nowrap;
  }
  .filter-sort .sort-label{font-weight:600;color:var(--navy-700)}
  .sort-select{
    appearance:none;-webkit-appearance:none;
    min-height:36px;padding:0 30px 0 12px;border:1px solid var(--line);border-radius:10px;
    background:#fff;color:var(--navy-800);font-size:13px;font-weight:600;cursor:pointer;
    font-family:-apple-system,"PingFang SC",sans-serif;transition:.2s;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238a6d3b' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 10px center;
  }
  .sort-select:hover{border-color:var(--gold-500);color:var(--gold-700)}
  .sort-select:focus{outline:2px solid var(--gold-500);outline-offset:1px;border-color:var(--gold-500)}

  /* ===== 文章列表 ===== */
  .article-list{display:flex;flex-direction:column;gap:18px}
  .article-card{
    background:#fff;border:1px solid var(--line);border-radius:18px;
    box-shadow:0 10px 26px rgba(13,27,46,.06);
    transition:transform .28s,box-shadow .28s,border-color .28s;
    position:relative;overflow:hidden;
  }
  .article-card::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;z-index:3;
    background:linear-gradient(180deg,var(--gold-500),var(--gold-300));
    transform:scaleY(0);transform-origin:top;transition:transform .3s;
  }
  .article-card:hover{
    transform:translateY(-4px);
    box-shadow:0 22px 50px rgba(13,27,46,.12);
    border-color:var(--gold-400);
  }
  .article-card:hover::before{transform:scaleY(1)}

  /* 整个卡片可点击链接 */
  .article-card-link{
    display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:stretch;
    color:inherit;text-decoration:none;
  }
  .article-card-link:focus-visible{outline:2px solid var(--gold-500);outline-offset:2px}

  .article-thumb{
    position:relative;overflow:hidden;min-height:140px;
    background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
  }
  .article-thumb img{
    width:100%;height:100%;min-height:140px;object-fit:cover;display:block;
    transition:transform .55s ease;
  }
  .article-card:hover .article-thumb img{transform:scale(1.08)}
  .article-thumb .article-cat{
    position:absolute;top:10px;left:10px;z-index:2;
    background:rgba(13,27,46,.7);backdrop-filter:blur(6px);
    color:var(--gold-300);font-size:11px;font-weight:700;letter-spacing:.5px;
    padding:4px 10px;border-radius:999px;border:1px solid rgba(220,194,138,.4);
    font-family:-apple-system,sans-serif;
  }

  .article-body{display:flex;flex-direction:column;gap:10px;padding:18px 18px 18px 0}
  .article-title{
    margin:0;font-size:19px;line-height:1.4;color:var(--navy-900);
    font-family:Georgia,"Songti SC",serif;transition:color .2s;
  }
  .article-card:hover .article-title{color:var(--gold-700)}
  .article-excerpt{
    margin:0;color:var(--muted);font-size:14px;line-height:1.75;
    font-family:-apple-system,"PingFang SC",sans-serif;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .article-meta{
    margin-top:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    color:var(--muted);font-size:12px;font-family:-apple-system,"PingFang SC",sans-serif;
  }
  .article-meta .meta-sep{color:var(--line)}
  .article-meta time{color:var(--navy-700);font-weight:600}
  .article-meta .meta-views{color:var(--gold-700)}

  /* 文章筛选隐藏态 */
  .article-card.is-hidden{display:none}

  /* ===== 空状态 ===== */
  .empty-state{
    text-align:center;padding:60px 20px;color:var(--muted);
    font-family:-apple-system,"PingFang SC",sans-serif;
  }
  .empty-state .empty-icon{
    font-size:54px;color:var(--line);margin-bottom:14px;font-family:Georgia,serif;
  }
  .empty-state a{color:var(--gold-700);font-weight:600}

  /* ===== 分页 ===== */
  .pagination{
    margin-top:32px;display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;
    font-family:-apple-system,"PingFang SC",sans-serif;
  }
  .page-btn{
    min-width:38px;height:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--navy-800);
    font-size:13px;font-weight:600;cursor:pointer;transition:.2s;white-space:nowrap;
  }
  .page-btn:hover:not(.is-disabled):not(.is-active){
    border-color:var(--gold-500);color:var(--gold-700);transform:translateY(-2px);
  }
  .page-btn.is-active{
    background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
    color:#fff;border-color:var(--gold-500);box-shadow:0 6px 14px rgba(13,27,46,.16);
  }
  .page-btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none}
  .page-ellipsis{padding:0 6px;color:var(--muted)}

  /* ===== 侧栏 ===== */
  .sidebar{
    display:flex;flex-direction:column;gap:18px;
    position:sticky;top:140px;
  }
  .side-card{
    background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;
    box-shadow:0 10px 26px rgba(13,27,46,.05);
  }
  .side-title{
    margin:0 0 14px;font-size:16px;color:var(--navy-900);
    font-family:Georgia,"Songti SC",serif;
    padding-bottom:10px;border-bottom:2px solid var(--gold-500);
    display:inline-block;letter-spacing:.3px;
  }
  .side-cta{
    background:linear-gradient(135deg,var(--navy-800),var(--navy-600));color:#fff;
    border-color:var(--gold-500);box-shadow:0 14px 32px rgba(13,27,46,.18);
    position:relative;overflow:hidden;
  }
  .side-cta::after{
    content:"";position:absolute;right:-50px;top:-50px;width:160px;height:160px;border-radius:50%;
    background:rgba(220,194,138,.12);
  }
  .side-cta .side-title{color:var(--gold-300);border-bottom-color:var(--gold-400)}
  .side-cta p{color:#cdd6e3;font-size:13px;margin:0 0 14px;line-height:1.7;font-family:-apple-system,"PingFang SC",sans-serif;position:relative;z-index:1}
  .side-contact{display:flex;flex-direction:column;gap:8px;position:relative;z-index:1}
  .side-contact .btn{width:100%;font-size:13px;min-height:40px}

  /* 栏目推荐列表 */
  .cat-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
  .cat-list li a{
    display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;
    transition:background .2s,transform .2s;
  }
  .cat-list li a:hover{background:var(--cream);transform:translateX(4px)}
  .cat-list strong{color:var(--navy-900);font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif}
  .cat-list span{color:var(--muted);font-size:12px;font-family:-apple-system,"PingFang SC",sans-serif}

  /* 热门文章 */
  .hot-list{list-style:none;margin:0;padding:0;counter-reset:hot;display:flex;flex-direction:column;gap:10px}
  .hot-list li{display:flex;align-items:flex-start;gap:10px;min-width:0}
  .hot-rank{
    flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;
    background:var(--cream);color:var(--navy-700);font-size:12px;font-weight:700;
    font-family:Georgia,serif;
  }
  .hot-list li:nth-child(1) .hot-rank{background:linear-gradient(135deg,var(--gold-600),var(--gold-400));color:var(--navy-900)}
  .hot-list li:nth-child(2) .hot-rank{background:linear-gradient(135deg,#b08d57,#9a7a44);color:#fff}
  .hot-list li:nth-child(3) .hot-rank{background:linear-gradient(135deg,#8a6d3b,#7a5e33);color:#fff}
  .hot-list li a{color:var(--navy-800);font-size:13px;line-height:1.55;transition:color .2s;font-family:-apple-system,"PingFang SC",sans-serif}
  .hot-list li a:hover{color:var(--gold-700)}
  .hot-list li a.is-ellipsis{min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}

  /* Tag 云 */
  .tag-cloud{display:flex;flex-wrap:wrap;gap:7px}
  .tag-pill{
    padding:6px 12px;border-radius:999px;background:var(--cream);color:var(--navy-700);
    font-size:12px;font-weight:600;border:1px solid var(--line);
    font-family:-apple-system,"PingFang SC",sans-serif;transition:.22s;
    max-width:100%;min-width:0;
  }
  .tag-pill:hover{
    background:linear-gradient(135deg,var(--gold-600),var(--gold-400));color:var(--navy-900);
    border-color:var(--gold-500);transform:translateY(-2px);box-shadow:0 6px 14px rgba(176,141,87,.28);
  }
  /* Tag 超长省略（模板挂了 is-ellipsis 类，此处补全规则避免长 tag 撑宽） */
  .tag-pill.is-ellipsis{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}

  /* ===== article-cat 可点击 tag 徽章（缩略图左上角，每行一个，过长省略） ===== */
  .article-card .article-cats{
    position:absolute;top:10px;left:10px;z-index:4;
    display:flex;flex-direction:column;align-items:flex-start;gap:6px;
    max-width:calc(100% - 20px);
    pointer-events:none; /* 容器不拦截点击，仅徽章本身可点 */
  }
  .article-card .article-cats .article-cat{
    display:inline-block;max-width:160px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
    background:rgba(13,27,46,.72);backdrop-filter:blur(6px);
    color:var(--gold-300);font-size:11px;font-weight:700;letter-spacing:.5px;
    padding:4px 10px;border-radius:999px;border:1px solid rgba(220,194,138,.4);
    font-family:-apple-system,sans-serif;text-decoration:none;
    pointer-events:auto;
    transition:background .2s,color .2s,border-color .2s;
  }
  .article-card .article-cats .article-cat:hover{
    background:var(--gold-500);color:#fff;border-color:var(--gold-500);
  }

  /* ===== 防溢出：grid/flex item 允许收缩，长英文连续串可断行 ===== */
  .article-main,.sidebar,.side-card,.article-card-link,.article-body{min-width:0}
  .article-title,.article-excerpt,.hot-list li a{overflow-wrap:anywhere}

  /* ===== 相关推荐 ===== */
  .recommend-section{padding:72px 0}
  .recommend-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:40px;
  }
  .recommend-card{
    background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
    box-shadow:0 12px 30px rgba(13,27,46,.06);
    transition:transform .28s,box-shadow .28s,border-color .28s;
    position:relative;
  }
  .recommend-card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:4px;
    background:linear-gradient(90deg,var(--gold-600),var(--gold-400));
    transform:scaleX(0);transform-origin:left;transition:transform .3s;
  }
  .recommend-card:hover{
    transform:translateY(-5px);box-shadow:0 22px 50px rgba(13,27,46,.13);border-color:var(--gold-400);
  }
  .recommend-card:hover::before{transform:scaleX(1)}
  .recommend-card a{display:flex;flex-direction:column;gap:10px;padding:22px;height:100%}
  .rec-cat{
    align-self:flex-start;background:var(--cream);color:var(--gold-700);
    font-size:11px;font-weight:700;letter-spacing:.5px;padding:4px 10px;border-radius:999px;
    border:1px solid var(--line);font-family:-apple-system,sans-serif;
  }
  .recommend-card h3{
    margin:0;font-size:17px;line-height:1.45;color:var(--navy-900);
    font-family:Georgia,"Songti SC",serif;transition:color .2s;
  }
  .recommend-card:hover h3{color:var(--gold-700)}
  .recommend-card h3.is-ellipsis{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .recommend-card p{
    margin:0;color:var(--muted);font-size:13px;line-height:1.7;
    font-family:-apple-system,"PingFang SC",sans-serif;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .rec-link{
    margin-top:auto;color:var(--gold-700);font-size:13px;font-weight:600;
    font-family:-apple-system,"PingFang SC",sans-serif;letter-spacing:.3px;
  }

  /* 栏目横向推荐 */
  .column-cross{
    background:linear-gradient(135deg,var(--navy-900),var(--navy-700));
    border-radius:24px;padding:30px;color:#fff;
    box-shadow:0 18px 44px rgba(13,27,46,.22);position:relative;overflow:hidden;
  }
  .column-cross::after{
    content:"";position:absolute;right:-80px;top:-80px;width:240px;height:240px;border-radius:50%;
    background:rgba(220,194,138,.12);
  }
  .cross-head{margin-bottom:20px;position:relative;z-index:1}
  .cross-head h3{
    margin:0 0 6px;color:#fff;font-size:22px;
    font-family:Georgia,"Songti SC",serif;letter-spacing:.3px;
  }
  .cross-head p{
    margin:0;color:#cdd6e3;font-size:14px;
    font-family:-apple-system,"PingFang SC",sans-serif;
  }
  .cross-grid{
    display:grid;grid-template-columns:repeat(6,1fr);gap:12px;position:relative;z-index:1;
  }
  .cross-item{
    display:flex;flex-direction:column;gap:4px;padding:14px 12px;border-radius:12px;
    background:rgba(255,255,255,.07);border:1px solid rgba(220,194,138,.18);
    transition:.25s;
  }
  .cross-item:hover{
    background:rgba(176,141,87,.18);border-color:var(--gold-400);transform:translateY(-3px);
  }
  .cross-item strong{color:var(--gold-300);font-size:14px;font-family:Georgia,"Songti SC",serif;letter-spacing:.3px}
  .cross-item span{color:#cdd6e3;font-size:12px;font-family:-apple-system,"PingFang SC",sans-serif}

  /* ===== 详情介绍（文字） ===== */
  .column-intro{padding:64px 0 68px;background:var(--paper)}
  .column-intro .section-head{margin-bottom:30px}
  .column-intro .rich-text{
    font-family:-apple-system,"PingFang SC",sans-serif;color:var(--ink);
    font-size:15px;line-height:1.9;
  }
  .column-intro .rich-text p{margin:0 0 18px}
  .column-intro .rich-text h3{
    margin:30px 0 14px;font-size:19px;color:var(--navy-900);
    font-family:Georgia,"Songti SC",serif;letter-spacing:.3px;
    padding-left:12px;border-left:3px solid var(--gold-500);
  }
  .column-intro .rich-text ul,.column-intro .rich-text ol{margin:0 0 18px;padding-left:22px}
  .column-intro .rich-text li{margin:8px 0;line-height:1.8}
  .column-intro .rich-text strong{color:var(--navy-900);font-weight:600}
  .column-intro .rich-text em{color:var(--gold-700);font-style:italic}
  .column-intro .rich-text blockquote{
    margin:20px 0;padding:16px 20px;background:#fff;border-radius:12px;
    border-left:4px solid var(--gold-500);color:var(--navy-800);
    box-shadow:0 8px 22px rgba(13,27,46,.06);font-size:14px;line-height:1.85;
  }
  .column-intro .rich-text blockquote strong{color:var(--gold-700)}
  .column-intro .rich-text figure{margin:24px 0}
  .column-intro .rich-text figure img{
    width:100%;height:auto;border-radius:14px;border:1px solid var(--line);
    box-shadow:0 12px 30px rgba(13,27,46,.08);
  }
  .column-intro .rich-text figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}

  /* ===== 响应式 ===== */
  @media (max-width:1040px){
    .column-hero-inner{grid-template-columns:1fr;gap:28px}
    .hero-aside{order:2}
    .article-layout{grid-template-columns:1fr;gap:30px}
    .sidebar{position:static;flex-direction:row;flex-wrap:wrap;gap:14px}
    .side-card{flex:1 1 280px}
    .recommend-grid{grid-template-columns:repeat(2,1fr)}
    .cross-grid{grid-template-columns:repeat(3,1fr)}
  }
  @media (max-width:720px){
    .column-hero{padding:48px 0 40px}
    .column-hero .lead{font-size:15px}
    .column-stats{gap:20px}
    .column-stats .stat b{font-size:24px}
    .aside-card{padding:20px}
    .article-section{padding:40px 0 48px}
    .article-card-link{grid-template-columns:1fr;gap:0}
    .article-thumb{min-height:160px}
    .article-thumb img{min-height:160px}
    .article-body{padding:14px 16px 16px}
    .article-title{font-size:17px}
    .recommend-grid{grid-template-columns:1fr;gap:14px}
    .cross-grid{grid-template-columns:repeat(2,1fr)}
    .column-cross{padding:24px 20px}
    .side-card{flex:1 1 100%}
    .column-intro{padding:44px 0 48px}
    .column-intro .rich-text{font-size:14px;line-height:1.85}
    .column-intro .rich-text h3{font-size:17px;margin:24px 0 12px}
    .column-intro .rich-text blockquote{padding:14px 16px;font-size:13px}
  }
  @media (max-width:480px){
    .column-hero h1{font-size:26px}
    .article-thumb{min-height:130px}
    .article-thumb img{min-height:130px}
    .aside-types{grid-template-columns:1fr 1fr}
    .cross-grid{grid-template-columns:1fr 1fr}
    .page-btn{min-width:34px;height:34px;padding:0 10px;font-size:12px}
  }