/* ========================================================
   TfS 导航 · 频道样式
   颜色一律用 /css/theme.css 的 CSS 变量（由 shared-header-footer.js 注入）
   视觉规范沿用 ghg：浅色 hero、白底卡片 + 细色条/标签，无实心色块填充
   ======================================================== */

/* ---------- 基础排版 ---------- */
.tfs h1, .tfs h2, .tfs h3, .tfs h4 { color: var(--gray-900); font-weight: 700; letter-spacing: -0.01em; }
.tfs p { color: var(--gray-700); line-height: 1.7; }
.tfs a { color: var(--primary-700); text-decoration: none; }
.tfs a:hover { color: var(--primary-600); }
.tfs .lead { font-size: 1.02rem; color: var(--gray-700); line-height: 1.75; }
.tfs .muted { color: var(--gray-500); font-size: 0.85rem; }
.tfs .lbl { display: inline-block; font-size: 0.7rem; font-weight: 700; color: var(--primary-700); background: var(--primary-50);
  padding: 0.08rem 0.45rem; border-radius: 6px; margin-right: 0.5rem; vertical-align: 0.05em; }
.tfs .tfs-ul { margin: 0.5rem 0 0; padding-left: 1.2rem; }
.tfs .tfs-ul li { font-size: 0.86rem; color: var(--gray-700); margin: 0.3rem 0; line-height: 1.55; }

/* ---------- 面包屑 ---------- */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: var(--gray-500); margin-bottom: 1.25rem; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--primary-600); }
.breadcrumb .sep { color: var(--gray-300); }

/* ---------- 详情页 hero ---------- */
.page-hero { margin-bottom: 1.6rem; }
.page-hero .eyebrow { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.75rem; font-weight: 600;
  color: var(--primary-700); background: var(--primary-100); border: 1px solid var(--primary-200);
  padding: 0.25rem 0.7rem; border-radius: 9999px; margin-bottom: 0.9rem; }
.page-hero h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 0.6rem; }
.page-hero .sub { font-size: 1.02rem; color: var(--gray-600); max-width: 780px; line-height: 1.7; }

/* ---------- 首页 hero（浅色强排版，div 承载，紧贴顶部导航栏无空白） ---------- */
.tfs-hero { margin: 0; background: linear-gradient(180deg, var(--primary-50) 0%, #fff 72%); border-bottom: 1px solid var(--gray-200); padding: 2.75rem 0 2.25rem; }
.tfs-hero .eyebrow { display: inline-block; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--primary-700); background: #fff; border: 1px solid var(--primary-200); padding: 0.25rem 0.7rem; border-radius: 9999px; margin-bottom: 1rem; }
.tfs-hero h1 { font-size: 2.5rem; font-weight: 800; line-height: 1.12; letter-spacing: -.02em; color: var(--gray-900); margin: 0 0 0.9rem; }
.tfs-hero h1 .g { color: var(--primary-600); }
.tfs-hero .tfs-hero-sub { font-size: 1.05rem; color: var(--gray-600); max-width: 46rem; line-height: 1.7; margin: 0 0 1.4rem; }
.tfs-hero a.cta { display: inline-flex; align-items: center; gap: 0.4rem; background: var(--primary-600); color: #fff; font-weight: 600; font-size: 0.92rem; padding: 0.62rem 1.25rem; border-radius: 8px; }
.tfs-hero a.cta:hover { background: var(--primary-700); color: #fff; }
.tfs-hero a.cta2 { margin-left: 1.1rem; font-size: 0.9rem; color: var(--primary-700); font-weight: 600; }
@media (max-width: 640px) { .tfs-hero h1 { font-size: 1.9rem; } .tfs-hero { padding: 2.2rem 0 2rem; } }
.tfs-home-body { padding-top: 1.25rem; padding-bottom: 3rem; }
.tfs-home-body > section:first-child { margin-top: 0; }

/* ---------- section ---------- */
.tfs section { margin: 2.25rem 0; }
.sec-head { display: flex; align-items: baseline; gap: 0.6rem; margin-bottom: 1rem; }
.sec-head h2 { font-size: 1.35rem; margin: 0; }
.sec-head .sec-no { font-family: ui-monospace, monospace; font-size: 0.78rem; font-weight: 700; color: var(--primary-700);
  background: var(--primary-100); padding: 0.15rem 0.5rem; border-radius: 6px; }
.sec-sub { color: var(--gray-600); margin: -0.4rem 0 1rem; font-size: 0.92rem; line-height: 1.6; }

/* ---------- 首页：三大支柱 ---------- */
.pillar-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .pillar-grid { grid-template-columns: repeat(3, 1fr); } }
.pillar-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--gray-200); border-top: 3px solid var(--primary-500); border-radius: var(--radius-lg); padding: 1.3rem; transition: var(--transition); }
.pillar-card:hover { transform: translateY(-3px); border-color: var(--primary-300); box-shadow: var(--shadow-md); }
.pillar-card .pc-no { font-size: 0.72rem; font-weight: 700; color: var(--primary-700); letter-spacing: 0.04em; }
.pillar-card h3 { font-size: 1.08rem; margin: 0.2rem 0 0.4rem; }
.pillar-card h3 small { font-weight: 400; color: var(--gray-400); font-size: 0.78rem; margin-left: 0.3rem; }
.pillar-card p { font-size: 0.88rem; color: var(--gray-600); margin: 0 0 0.8rem; flex: 1; }
.pillar-card .pc-go { font-size: 0.85rem; font-weight: 600; color: var(--primary-600); }

/* ---------- 首页：入口卡片 ---------- */
.entry-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .entry-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .entry-grid { grid-template-columns: repeat(3, 1fr); } }
.entry-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 1.4rem; transition: var(--transition); }
.entry-card:hover { transform: translateY(-3px); border-color: var(--primary-300); box-shadow: var(--shadow-md); }
.entry-card .ec-ico { font-size: 1.5rem; margin-bottom: 0.6rem; }
.entry-card h3 { font-size: 1.05rem; margin: 0 0 0.4rem; }
.entry-card p { font-size: 0.88rem; color: var(--gray-600); margin: 0 0 0.8rem; flex: 1; }
.entry-card .ec-go { font-size: 0.85rem; font-weight: 600; color: var(--primary-600); }

/* ---------- 评估：主题卡 ---------- */
.theme-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .theme-grid { grid-template-columns: repeat(2, 1fr); } }
.theme-card { background: #fff; border: 1px solid var(--gray-200); border-left: 4px solid var(--primary-500); border-radius: var(--radius-md); padding: 1rem 1.2rem; }
.theme-card h4 { font-size: 1rem; margin: 0 0 0.3rem; }
.theme-card h4 small { font-weight: 500; color: var(--gray-500); font-size: 0.78rem; margin-left: 0.3rem; }
.theme-crit li { font-size: 0.84rem; color: var(--gray-600); }

/* ---------- 评估：管理指标三层 ---------- */
.layer-grid { display: grid; gap: 0.8rem; grid-template-columns: 1fr; margin-top: 0.4rem; }
@media (min-width: 768px) { .layer-grid { grid-template-columns: repeat(3, 1fr); } }
.layer-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.9rem 1rem; }
.layer-h { font-size: 0.9rem; font-weight: 700; color: var(--gray-900); margin-bottom: 0.6rem; }
.layer-card .chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.layer-card .chips span { font-size: 0.78rem; color: var(--primary-800); background: var(--primary-50); border: 1px solid var(--primary-200); border-radius: 9999px; padding: 0.2rem 0.6rem; }

/* ---------- 通用 mini 卡（规模/国别因子等） ---------- */
.mini-grid { display: grid; gap: 0.8rem; grid-template-columns: 1fr; margin-top: 0.4rem; }
@media (min-width: 768px) { .mini-grid { grid-template-columns: repeat(2, 1fr); } }
.mini-card { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.85rem 1rem; }
.mini-card b { font-size: 0.9rem; color: var(--gray-900); }
.mini-card p { font-size: 0.83rem; color: var(--gray-600); margin: 0.25rem 0 0; line-height: 1.55; }

/* ---------- 审核：范围领域卡 ---------- */
.area-grid { display: grid; gap: 0.9rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .area-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .area-grid { grid-template-columns: repeat(3, 1fr); } }
.area-card { background: #fff; border: 1px solid var(--gray-200); border-top: 3px solid var(--primary-400); border-radius: var(--radius-md); padding: 0.9rem 1.1rem; }
.area-card h4 { font-size: 0.95rem; margin: 0 0 0.3rem; }
.area-items li { font-size: 0.82rem; color: var(--gray-600); margin: 0.22rem 0; }

/* ---------- 审核：流程步骤 ---------- */
.step-flow { list-style: none; margin: 0.4rem 0 0; padding: 0; counter-reset: sf; display: grid; gap: 0.6rem; }
.step-flow li { display: flex; gap: 0.8rem; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.7rem 0.9rem; }
.sf-num { flex: 0 0 1.7rem; height: 1.7rem; border-radius: 9999px; background: var(--primary-100); color: var(--primary-800); font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; }
.step-flow b { font-size: 0.9rem; color: var(--gray-900); }
.step-flow p { font-size: 0.83rem; color: var(--gray-600); margin: 0.15rem 0 0; line-height: 1.5; }

/* ---------- PCF：报告原则 ---------- */
.principle-grid { display: grid; gap: 0.8rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .principle-grid { grid-template-columns: repeat(5, 1fr); } }
.principle-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.9rem 0.85rem; }
.principle-card .pn { display: inline-flex; align-items: center; justify-content: center; width: 1.5rem; height: 1.5rem; border-radius: 8px; background: var(--primary-100); color: var(--primary-800); font-size: 0.78rem; font-weight: 700; margin-bottom: 0.4rem; }
.principle-card b { display: block; font-size: 0.9rem; color: var(--gray-900); margin-bottom: 0.2rem; }
.principle-card p { font-size: 0.78rem; color: var(--gray-600); margin: 0; line-height: 1.5; }

/* ---------- PCF：四种方法 ---------- */
.method-grid { display: grid; gap: 0.9rem; grid-template-columns: 1fr; margin: 0.4rem 0; }
@media (min-width: 768px) { .method-grid { grid-template-columns: repeat(2, 1fr); } }
.method-card { background: #fff; border: 1px solid var(--gray-200); border-left: 4px solid var(--gray-300); border-radius: var(--radius-md); padding: 0.9rem 1.1rem; }
.method-card.core { border-left-color: var(--primary-600); }
.method-card h4 { font-size: 0.98rem; margin: 0 0 0.3rem; }
.method-card h4 small { font-weight: 500; color: var(--gray-500); font-size: 0.78rem; margin-left: 0.3rem; }
.method-card p { font-size: 0.85rem; color: var(--gray-600); margin: 0; }

/* ---------- PCF：范围3.1 纳入/排除/可选 ---------- */
.s31-grid { display: grid; gap: 0.8rem; grid-template-columns: 1fr; margin: 0.4rem 0; }
@media (min-width: 768px) { .s31-grid { grid-template-columns: repeat(3, 1fr); } }
.s31-col { background: #fff; border: 1px solid var(--gray-200); border-top: 3px solid var(--gray-300); border-radius: var(--radius-md); padding: 0.85rem 1rem; }
.s31-col.incl { border-top-color: var(--primary-500); }
.s31-col.excl { border-top-color: var(--gray-400); }
.s31-col.opt { border-top-color: #f59e0b; }
.s31-h { font-size: 0.82rem; font-weight: 700; color: var(--gray-700); margin-bottom: 0.2rem; }
.s31-list li { font-size: 0.82rem; color: var(--gray-600); margin: 0.25rem 0; }

/* ---------- 数据表 ---------- */
.data-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); overflow: hidden; margin: 0.6rem 0 1rem; }
.data-table th { text-align: left; font-size: 0.78rem; font-weight: 700; color: var(--gray-600); background: var(--gray-50); padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--gray-200); }
.data-table td { font-size: 0.85rem; color: var(--gray-700); padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--gray-100); vertical-align: top; }
.data-table tr:last-child td { border-bottom: none; }

/* ---------- callout ---------- */
.callout { border-radius: var(--radius-md); padding: 0.9rem 1.1rem; margin: 1rem 0; font-size: 0.88rem; line-height: 1.65; }
.callout strong { display: block; margin-bottom: 0.25rem; }
.callout.info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
.callout.warn { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.callout a { color: inherit; text-decoration: underline; }

/* ---------- 应对路径 ---------- */
.road { position: relative; margin: 1rem 0; }
.road-step { display: flex; gap: 1rem; padding-bottom: 1.1rem; position: relative; }
.road-step::before { content: ''; position: absolute; left: 1.05rem; top: 2.4rem; bottom: 0; width: 2px; background: var(--primary-200); }
.road-step:last-child::before { display: none; }
.road-num { flex: 0 0 2.2rem; height: 2.2rem; border-radius: 9999px; background: var(--primary-600); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; z-index: 1; }
.road-body { flex: 1; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.9rem 1.1rem; }
.road-body h3 { font-size: 1.02rem; margin: 0 0 0.35rem; }
.road-body p { font-size: 0.88rem; margin: 0.3rem 0; }
.road-pit { font-size: 0.83rem; color: var(--gray-600); background: #fffbeb; border-radius: 8px; padding: 0.4rem 0.6rem; }
.road-pit .lbl { background: #fef3c7; color: #92400e; }
.road-links { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; margin-top: 0.6rem; }
.road-links a { font-size: 0.82rem; font-weight: 600; }

/* ---------- 术语表 ---------- */
.glossary-list { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.glossary-row { display: grid; grid-template-columns: 1fr; gap: 0.2rem; padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--gray-100); scroll-margin-top: 90px; }
@media (min-width: 768px) { .glossary-row { grid-template-columns: 240px 1fr; gap: 1.2rem; } }
.glossary-row:last-child { border-bottom: none; }
.glossary-row:target { background: var(--primary-50); }
.g-term { font-weight: 700; color: var(--gray-900); font-size: 0.92rem; }
.g-term small { display: block; font-weight: 400; color: var(--gray-400); font-size: 0.76rem; margin-top: 0.1rem; }
.g-def { font-size: 0.87rem; color: var(--gray-700); line-height: 1.6; }

/* ---------- CTA ---------- */
.cta-box { background: var(--gray-50); border-left: 3px solid var(--primary-500); border-radius: 0 0.5rem 0.5rem 0;
  padding: 1rem 1.25rem; margin: 2rem 0 0; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem 1.25rem; }
.cta-box p { margin: 0; color: var(--gray-600); font-size: 0.88rem; flex: 1 1 280px; }
.cta-box p strong { color: var(--gray-900); }
.cta-actions { display: inline-flex; align-items: center; gap: 1rem; font-size: 0.85rem; }
.cta-primary { padding: 0.5rem 1rem; background: var(--primary-600); color: #fff; border-radius: 0.375rem; font-weight: 500; }
.cta-primary:hover { background: var(--primary-700); color: #fff; }
.cta-secondary { color: var(--gray-500); }
.cta-secondary:hover { color: var(--primary-700); }

/* ---------- 来源脚注 ---------- */
.source-note { margin-top: 2.5rem; padding-top: 1.2rem; border-top: 1px solid var(--gray-200); font-size: 0.8rem; color: var(--gray-500); line-height: 1.6; }
.source-note a { color: var(--primary-600); }
.source-note .meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-top: 0.5rem; }

@media print { .cta-box, .breadcrumb { display: none !important; } }