/* ============================================================
   topic-breach-response.css — 数据泄露溯源、应急响应与勒索治理 子课题分页专用样式
   结构对齐 topic-cloud-compliance.css（侧边目录+内容区块+分页器+Canvas图表）（侧边目录+内容区块+分页器+Canvas图表）
   ============================================================ */
:root{--primary:#1a6eff;--primary-light:#e8f1ff;--primary-gradient:linear-gradient(135deg,#1a6eff,#00c6ff);--text:#1a1a2e;--text-secondary:#5a5a72;--text-light:#8a8aa0;--border:#e5e7f2;--bg-card:#fff;--bg-warm:#f8f9fc;--radius:16px;--radius-sm:10px;--shadow:0 4px 20px rgba(15,23,42,.06);--shadow-hover:0 12px 32px rgba(26,110,255,.14);--transition:all .28s cubic-bezier(.4,0,.2,1)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:#fff;-webkit-font-smoothing:antialiased}

/* ===== td Hero ===== */
.td-hero{position:relative;padding:150px 0 56px;background:linear-gradient(180deg,#f0f5ff 0%,#fff 100%);overflow:hidden}
.td-hero::before{content:'';position:absolute;top:-120px;right:-120px;width:420px;height:420px;background:radial-gradient(circle,rgba(26,110,255,.08) 0%,transparent 70%);border-radius:50%}
.td-hero::after{content:'';position:absolute;bottom:-160px;left:-100px;width:380px;height:380px;background:radial-gradient(circle,rgba(0,198,255,.07) 0%,transparent 70%);border-radius:50%}
.td-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-light);margin-bottom:22px;flex-wrap:wrap;position:relative;z-index:1}
.td-breadcrumb a{color:var(--primary);text-decoration:none;font-weight:500}
.td-breadcrumb a:hover{text-decoration:underline}
.td-breadcrumb svg{width:13px;height:13px;flex-shrink:0}
.td-num{display:inline-flex;align-items:baseline;gap:10px;font-size:15px;font-weight:900;color:var(--primary);letter-spacing:2px;margin-bottom:12px;position:relative;z-index:1}
.td-num em{font-style:normal;font-size:42px;line-height:1;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.td-hero h1{font-size:clamp(26px,4vw,40px);font-weight:900;color:var(--text);letter-spacing:-.5px;margin:0 0 16px;line-height:1.25;position:relative;z-index:1}
.td-lead{font-size:15px;color:var(--text-secondary);line-height:1.9;max-width:860px;margin:0 0 22px;position:relative;z-index:1}
.td-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;position:relative;z-index:1}
.td-chip{font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-light);border:1px solid rgba(26,110,255,.15);padding:5px 14px;border-radius:100px}
.td-chip.status-active{background:#e6f7ed;color:#2ea043;border-color:#b7ebc6}
.td-meta-bar{display:flex;flex-wrap:wrap;position:relative;z-index:1;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 16px rgba(15,23,42,.04)}
.td-meta-item{flex:1;min-width:220px;padding:16px 22px;border-right:1px solid var(--border)}
.td-meta-item:last-child{border-right:none}
.td-meta-item em{display:block;font-style:normal;font-size:11px;font-weight:700;color:var(--text-light);letter-spacing:1px;margin-bottom:6px}
.td-meta-item span{font-size:14px;font-weight:600;color:var(--text);line-height:1.6}

/* ===== 分页器 ===== */
.apt-pager{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:8px 0 36px;padding:18px 22px;background:#fff;border:1px solid var(--border);border-radius:14px}
.apt-pager.bottom{margin:40px 0 0}
.pager-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:10px;font-size:14px;font-weight:600;text-decoration:none;border:1.5px solid var(--border);color:var(--text-secondary);background:#fff;transition:var(--transition)}
.pager-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.pager-btn.primary{background:var(--primary-gradient);color:#fff;border-color:transparent;box-shadow:0 4px 14px rgba(26,110,255,.28)}
.pager-btn.primary:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(26,110,255,.36);color:#fff}
.pager-steps{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.p-label{font-size:12px;color:var(--text-light);font-weight:600;margin-right:4px}
.pager-steps a{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--text-secondary);background:#fff;border:1.5px solid var(--border);text-decoration:none;transition:var(--transition)}
.pager-steps a:hover{border-color:var(--primary);color:var(--primary)}
.pager-steps a.active{background:var(--primary-gradient);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(26,110,255,.3)}

/* ===== 布局：侧边目录 + 内容 ===== */
.content-grid{display:grid;grid-template-columns:250px minmax(0,1fr);gap:36px;align-items:start}
.content-sidebar{position:sticky;top:96px}
.sidebar-nav{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px}
.sidebar-nav h4{font-size:13px;font-weight:800;color:var(--text);margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--border);letter-spacing:.5px}
.sidebar-nav>ul{list-style:none;padding:0;margin:0}
.sidebar-nav>ul>li{margin-bottom:2px}
.sidebar-nav>ul a{display:block;padding:8px 12px;border-radius:8px;font-size:13px;color:var(--text-secondary);text-decoration:none;line-height:1.5;transition:var(--transition);border-left:2px solid transparent}
.sidebar-nav>ul a:hover{background:var(--primary-light);color:var(--primary)}
.sidebar-nav>ul a.active{background:var(--primary-light);color:var(--primary);font-weight:700;border-left-color:var(--primary)}
.mini-pager{margin-top:16px;padding-top:14px;border-top:1px dashed var(--border);display:flex;flex-direction:column;gap:6px}
.mini-pager a{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;font-size:12px;font-weight:600;color:var(--text-secondary);text-decoration:none;border:1px solid var(--border);transition:var(--transition)}
.mini-pager a:hover{border-color:var(--primary);color:var(--primary)}
.mini-pager a.active{background:var(--primary-gradient);color:#fff;border-color:transparent}
.content-main{min-width:0}

/* ===== 内容区块 ===== */
.content-section{background:#fff;border:1px solid var(--border);border-radius:16px;padding:36px 40px;margin-bottom:28px;scroll-margin-top:96px}
.content-section h2{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:900;color:var(--text);margin:0 0 20px;padding-bottom:14px;border-bottom:2px solid var(--primary-light);letter-spacing:.3px}
.content-section h2::before{content:'';width:5px;height:22px;background:var(--primary-gradient);border-radius:3px;flex-shrink:0}
.content-section h3{font-size:17px;font-weight:800;color:var(--text);margin:28px 0 12px;padding-left:12px;border-left:3px solid var(--primary);line-height:1.5}
.content-section h4{font-size:15px;font-weight:700;color:var(--text);margin:18px 0 10px}
.content-section p{font-size:14.5px;color:var(--text-secondary);line-height:1.95;margin:0 0 14px}
.content-section p strong,.content-section li strong{color:var(--text);font-weight:700}
.content-section ul,.content-section ol{padding-left:22px;margin:0 0 14px}
.content-section li{font-size:14px;color:var(--text-secondary);line-height:1.9;margin-bottom:8px}
.content-section a{color:var(--primary)}
.src-note{font-size:12px !important;color:var(--text-light) !important;font-style:italic;margin-top:10px !important;margin-bottom:0 !important}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto;margin:16px 0;border:1px solid var(--border);border-radius:12px;-webkit-overflow-scrolling:touch}
.data-table{width:100%;border-collapse:collapse;font-size:13px;min-width:560px}
.data-table th{background:var(--primary-light);color:var(--text);font-weight:700;text-align:left;padding:12px 14px;white-space:nowrap;border-bottom:2px solid rgba(26,110,255,.15)}
.data-table td{padding:11px 14px;border-bottom:1px solid var(--border);color:var(--text-secondary);line-height:1.7;vertical-align:top}
.data-table tr:last-child td{border-bottom:none}
.data-table tr:hover td{background:rgba(26,110,255,.025)}
.data-table td strong{color:var(--text)}
.t-id{font-family:ui-monospace,Consolas,monospace;font-size:12px;font-weight:700;color:var(--primary);background:var(--primary-light);padding:2px 8px;border-radius:6px;white-space:nowrap}

/* ===== 关键数字卡 ===== */
.kv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:20px 0}
.kv-card{background:linear-gradient(135deg,var(--primary-light) 0%,rgba(26,110,255,.02) 100%);border:1px solid rgba(26,110,255,.12);border-radius:14px;padding:20px;transition:var(--transition)}
.kv-card:hover{border-color:rgba(26,110,255,.3);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.kv-num{font-size:30px;font-weight:900;color:var(--primary);line-height:1;font-variant-numeric:tabular-nums}
.kv-label{font-size:13px;font-weight:700;color:var(--text);margin-top:8px}
.kv-desc{font-size:12px;color:var(--text-secondary);line-height:1.7;margin-top:6px}

/* ===== 图表框 ===== */
.figure-box{background:linear-gradient(180deg,#fbfcff 0%,#fff 100%);border:1px solid var(--border);border-radius:14px;padding:22px;margin:22px 0;overflow:hidden}
.figure-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--text);margin-bottom:4px}
.figure-title::before{content:'';width:8px;height:8px;background:var(--primary-gradient);border-radius:2px;transform:rotate(45deg);flex-shrink:0}
.figure-sub{font-size:12px;color:var(--text-light);margin-bottom:14px}
.figure-box canvas{width:100%;display:block;max-width:100%}
.figure-src{font-size:11.5px;color:var(--text-light);margin-top:12px;padding-top:10px;border-top:1px dashed var(--border);line-height:1.7}
.chart-legend{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:12px;justify-content:center}
.chart-legend .lg-item{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-secondary);font-weight:500}
.chart-legend .lg-dot{width:10px;height:10px;border-radius:3px;flex-shrink:0}

/* ===== 提示框 ===== */
.info-box{background:var(--primary-light);border-left:4px solid var(--primary);border-radius:0 12px 12px 0;padding:16px 20px;margin:18px 0}
.info-box p{font-size:13.5px;color:var(--text-secondary);line-height:1.85;margin:0}
.info-box p strong{color:var(--text)}
.warn-box{background:#fff8f0;border-left:4px solid #f57c00;border-radius:0 12px 12px 0;padding:16px 20px;margin:18px 0}
.warn-box p{font-size:13.5px;color:#7a4a12;line-height:1.85;margin:0}
.warn-box p strong{color:#5c3609}

/* ===== 代码块 ===== */
.code-block{background:#0f172a;border-radius:12px;padding:20px 22px;margin:16px 0;overflow-x:auto;-webkit-overflow-scrolling:touch}
.code-block pre{margin:0;font-family:ui-monospace,Consolas,monospace;font-size:12.5px;line-height:1.75;color:#dbeafe;white-space:pre}
.code-cap{font-size:12px;font-weight:700;color:var(--text-light);margin:14px 0 6px}

/* ===== 参考来源 ===== */
.ref-list{display:flex;flex-direction:column;gap:10px}
.ref-item{display:flex;gap:14px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px 18px;transition:var(--transition)}
.ref-item:hover{border-color:rgba(26,110,255,.2);box-shadow:var(--shadow)}
.ref-num{font-size:12px;font-weight:800;color:var(--primary);background:var(--primary-light);padding:2px 8px;border-radius:6px;flex-shrink:0;height:fit-content;font-family:ui-monospace,Consolas,monospace}
.ref-item p{font-size:12.5px;color:var(--text-secondary);line-height:1.75;margin:0;word-break:break-all}
.ref-item a{color:var(--primary);text-decoration:none;word-break:break-all}
.ref-item a:hover{text-decoration:underline}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .content-grid{grid-template-columns:1fr}
  .content-sidebar{position:static}
  .sidebar-nav>ul{display:flex;flex-wrap:wrap;gap:4px}
  .sidebar-nav>ul a{border-left:none;border:1px solid var(--border);border-radius:100px;padding:6px 14px;font-size:12px}
  .sidebar-nav>ul a.active{border-color:var(--primary)}
  .mini-pager{flex-direction:row;flex-wrap:wrap}
  .kv-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .kv-grid{grid-template-columns:1fr 1fr}
  .kv-num{font-size:24px}
  .content-section{padding:24px 18px}
  .content-section h2{font-size:19px}
  .apt-pager{flex-direction:column;align-items:stretch}
  .pager-btn{justify-content:center}
  .pager-steps{justify-content:center}
  .figure-box{padding:16px 10px}
  .td-hero{padding:120px 0 40px}
  .td-meta-item{min-width:100%;border-right:none;border-bottom:1px solid var(--border)}
  .td-meta-item:last-child{border-bottom:none}
  .section{padding:48px 0}
}
@media (max-width:420px){.kv-grid{grid-template-columns:1fr}}

/* ============================================================
   顶部导航 + 页脚 移动端适配
   （自 threat-intel.css 提取，补齐各专题分页缺失部分）
   ============================================================ */

/* ---------- ≤1024px：页脚由4列降为2列 ---------- */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- ≤768px：导航折叠为汉堡菜单 + 页脚单列 ---------- */
@media (max-width: 768px) {
    /* —— 顶部导航 —— */
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        gap: 4px;
        border-bottom: 1px solid var(--border);
        z-index: 999;
    }
    .nav-links.active { display: flex; }
    .mobile-toggle { display: flex; }

    /* —— 页脚 —— */
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }

    /* —— 通用区块 / 卡片（部分专题页有此结构，一并补齐） —— */
    .section { padding: 48px 0; }
    .subtopic-card.expanded { grid-column: auto; }
}
/* ============================================================
   终审修订（2026-09）：卡片等高居底对齐 / 状态徽章不换行 / 移动端表格横向滑动
   ============================================================ */

/* kv-card 同排等高，底部信息居底对齐 */
.kv-grid{align-items:stretch}
.kv-card{display:flex;flex-direction:column}
.kv-desc{margin-top:auto;padding-top:6px}

/* 不换行工具类：风险等级、严重度、状态徽章等单元格使用（<td class="nobr">） */
.nobr{white-space:nowrap}
.data-table td.nobr,.data-table th.nobr{white-space:nowrap}

/* 表格状态徽章通用样式（ risk / severity badge，如已有同名类则不冲突覆盖） */
.badge{display:inline-block;padding:3px 10px;border-radius:100px;font-size:12px;font-weight:700;line-height:1.4;white-space:nowrap;text-align:center}

/* 移动端：表格容器横向滑动优化 + 滑动提示 */
@media (max-width:768px){
  .table-wrap{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
  .data-table{min-width:620px}
  .table-wrap::after{content:'⟷ 表格可左右滑动查看';display:block;text-align:center;font-size:11px;color:var(--text-light);padding:7px 0 3px;background:#fafbfe;border-top:1px dashed var(--border);white-space:nowrap}
  ::-webkit-scrollbar{height:6px}
  ::-webkit-scrollbar-thumb{background:rgba(26,110,255,.35);border-radius:3px}
  ::-webkit-scrollbar-track{background:rgba(26,110,255,.06)}
}