/* ========================================================
   GHG Protocol 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）
   仅 Scope 1/2/3 三色与 callout 语义色为必要的少量自定义
   ======================================================== */

/* ---------- 基础排版 ---------- */
.ghg h1, .ghg h2, .ghg h3, .ghg h4 { color: var(--gray-900); font-weight: 700; letter-spacing: -0.01em; }
.ghg p { color: var(--gray-700); line-height: 1.7; }
.ghg a { color: var(--primary-700); text-decoration: none; }
.ghg a:hover { color: var(--primary-600); }
.ghg .lead { font-size: 1.02rem; color: var(--gray-700); line-height: 1.75; }
.ghg .muted { color: var(--gray-500); font-size: 0.85rem; }
.ghg .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; }

/* ---------- 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); }

/* ---------- 页面 hero ---------- */
.page-hero { margin-bottom: 1.75rem; }
.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: 760px; line-height: 1.7; }

/* 首页大 hero · 浅色强排版（用 div 而非 section，紧贴顶部导航栏、无空白） */
.ghg-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; }
.ghg-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; }
.ghg-hero h1 { font-size: 2.6rem; font-weight: 800; line-height: 1.12; letter-spacing: -.02em; color: var(--gray-900); margin: 0 0 0.9rem; }
.ghg-hero h1 .g { color: var(--primary-600); }
.ghg-hero .ghg-hero-sub { font-size: 1.05rem; color: var(--gray-600); max-width: 44rem; line-height: 1.7; margin: 0 0 1.4rem; }
.ghg-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; }
.ghg-hero a.cta:hover { background: var(--primary-700); color: #fff; }
.ghg-hero a.cta2 { margin-left: 1.1rem; font-size: 0.9rem; color: var(--primary-700); font-weight: 600; }
@media (max-width: 640px) { .ghg-hero h1 { font-size: 1.95rem; } .ghg-hero { padding: 2.2rem 0 2rem; } }

/* 首页内容区：紧贴 hero（收掉首个 section 的上边距） */
.ghg-home-body { padding-top: 1.25rem; padding-bottom: 3rem; }
.ghg-home-body > section:first-child { margin-top: 0; }

/* ---------- section ---------- */
.ghg 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: -0.5rem 0 1rem; font-size: 0.92rem; }

/* 「什么是」核算基础面板 */
.basis-panel { margin-top: 1.1rem; background: linear-gradient(135deg, var(--primary-50), #fff); border: 1px solid var(--primary-200); border-radius: var(--radius-md); padding: 1rem 1.2rem; }
.basis-head { font-size: 0.85rem; font-weight: 700; color: var(--gray-800); margin-bottom: 0.7rem; }
.basis-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.basis-chips a, .basis-chips span { font-size: 0.82rem; font-weight: 600; border-radius: 9999px; padding: 0.3rem 0.85rem; }
.basis-chips a { color: var(--primary-800); background: #fff; border: 1px solid var(--primary-200); }
.basis-chips a:hover { border-color: var(--primary-500); background: var(--primary-50); color: var(--primary-800); }
.basis-chips span { color: var(--gray-500); background: var(--gray-50); border: 1px solid var(--gray-200); }

/* ---------- 入口卡片（首页导航） ---------- */
.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); }

/* 标准体系 mini pills（首页） */
.fam-grid { display: grid; gap: 0.6rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) { .fam-grid { grid-template-columns: repeat(4, 1fr); } }
.fam-pill { display: flex; flex-direction: column; gap: 0.2rem; background: #fff; border: 1px solid var(--gray-200);
  border-left: 4px solid var(--primary-400); border-radius: var(--radius-md); padding: 0.7rem 0.85rem; transition: var(--transition); }
.fam-pill:hover { border-color: var(--primary-300); border-left-color: var(--primary-600); box-shadow: var(--shadow-sm); }
.fam-pill.optional { border-left-color: var(--gray-300); }
.fam-pill.new { border-left-color: var(--primary-600); }
.fam-pill .fam-cn { font-size: 0.9rem; font-weight: 600; color: var(--gray-900); }
.fam-pill .fam-type { font-size: 0.72rem; color: var(--gray-500); }

/* ---------- 标准体系架构（首页 02）· 白卡分层，无填充色块 ---------- */
.arch { display: grid; gap: 0.9rem; }
.arch-tier-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--gray-500); margin: 0 0 0.6rem; }
.arch-core { background: #fff; border: 1px solid var(--gray-200); border-left: 4px solid var(--primary-600); border-radius: var(--radius-md); padding: 0.95rem 1.15rem; }
.arch-core-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.arch .arch-core-name { display: block; font-weight: 700; color: var(--gray-900); font-size: 1.05rem; }
.arch .arch-core-name:hover { color: var(--primary-700); }
.arch-core-name small { display: block; font-weight: 400; color: var(--gray-500); font-size: 0.8rem; margin-top: 0.2rem; }
.arch-tag { flex: none; font-size: 0.7rem; font-weight: 700; color: var(--primary-800); background: var(--primary-100); border-radius: 9999px; padding: 0.18rem 0.65rem; }
.arch-subs-cap { font-size: 0.74rem; color: var(--gray-500); margin: 0.85rem 0 0.5rem; }
.arch-core-subs { display: grid; gap: 0.5rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .arch-core-subs { grid-template-columns: repeat(3, 1fr); } }
.arch-sub { display: flex; flex-direction: column; gap: 0.1rem; background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 8px; padding: 0.5rem 0.75rem; }
.arch-sub:hover { border-color: var(--primary-300); background: #fff; }
.arch-sub b { font-size: 0.84rem; color: var(--gray-900); font-weight: 600; }
.arch-sub span { font-size: 0.74rem; color: var(--gray-500); }
.arch-tier-row { display: grid; gap: 0.7rem; grid-template-columns: repeat(2, 1fr); margin-top: 0.9rem; }
@media (min-width: 860px) { .arch-tier-row { grid-template-columns: repeat(4, 1fr); } }
.arch-tier { display: flex; flex-direction: column; gap: 0.12rem; background: #fff; border: 1px solid var(--gray-200); border-top: 3px solid var(--gray-300); border-radius: var(--radius-md); padding: 0.7rem 0.85rem; }
.arch-tier:hover { border-color: var(--primary-300); box-shadow: var(--shadow-sm); }
.arch-tier.new { border-top-color: var(--primary-500); }
.arch-tier .cat { font-size: 0.7rem; font-weight: 700; color: var(--gray-500); letter-spacing: 0.03em; }
.arch-tier b { font-size: 0.85rem; color: var(--gray-900); font-weight: 600; }
.arch-tier .role { font-size: 0.74rem; color: var(--gray-500); }

/* ---------- 标准卡片（standards 页） ---------- */
.std-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
@media (min-width: 860px) { .std-grid { grid-template-columns: repeat(2, 1fr); } }
.std-card { background: #fff; border: 1px solid var(--gray-200); border-left: 5px solid var(--primary-500);
  border-radius: var(--radius-lg); padding: 1.4rem; scroll-margin-top: 90px; }
.std-card.core { border-left-color: var(--primary-600); }
.std-card.new { border-left-color: var(--primary-500); background: linear-gradient(0deg, #fff, var(--primary-50)); }
.std-card.optional { border-left-color: var(--gray-300); }
.std-badges { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.6rem; }
.std-title { font-size: 1.15rem; margin: 0 0 0.2rem; }
.std-en { font-size: 0.78rem; color: var(--gray-500); margin-bottom: 0.8rem; }
.std-q { font-size: 0.9rem; color: var(--gray-700); margin: 0.4rem 0; line-height: 1.65; }
.std-scope { list-style: none; padding: 0; margin: 0.7rem 0; }
.std-scope li { font-size: 0.85rem; color: var(--gray-600); padding-left: 1.1rem; position: relative; margin: 0.3rem 0; line-height: 1.5; }
.std-scope li::before { content: '·'; position: absolute; left: 0.3rem; color: var(--primary-500); font-weight: 700; }
.std-note { font-size: 0.8rem; color: var(--gray-500); background: var(--gray-50); border-radius: 8px; padding: 0.5rem 0.7rem; margin: 0.6rem 0; }

/* ---------- badges ---------- */
.badge { display: inline-flex; align-items: center; font-size: 0.7rem; font-weight: 600; border-radius: 6px; padding: 0.12rem 0.5rem; }
.badge-type { background: var(--primary-100); color: var(--primary-800); }
.badge-must { background: #fef3c7; color: #92400e; }
.badge-ghost { background: var(--gray-100); color: var(--gray-600); }
.badge-scope { background: var(--primary-50); color: var(--primary-700); border: 1px solid var(--primary-200); }
.ext-link { display: inline-block; margin-top: 0.6rem; font-size: 0.82rem; font-weight: 600; color: var(--primary-600); }

/* ---------- Scope 卡片 ---------- */
.scope-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 860px) { .scope-grid { grid-template-columns: repeat(3, 1fr); } }
.scope-card { background: #fff; border: 1px solid var(--gray-200); border-top: 4px solid var(--gray-300); border-radius: var(--radius-lg); padding: 1.3rem; }
.scope-card.s1 { border-top-color: #ef4444; }
.scope-card.s2 { border-top-color: #f59e0b; }
.scope-card.s3 { border-top-color: var(--primary-600); }
.scope-head { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.7rem; }
.scope-tag { font-family: ui-monospace, monospace; font-size: 0.72rem; font-weight: 700; color: #fff; background: var(--gray-700); padding: 0.15rem 0.5rem; border-radius: 6px; }
.scope-card.s1 .scope-tag { background: #ef4444; }
.scope-card.s2 .scope-tag { background: #f59e0b; }
.scope-card.s3 .scope-tag { background: var(--primary-600); }
.scope-name { font-weight: 700; color: var(--gray-900); font-size: 0.98rem; }
.scope-def { font-size: 0.88rem; color: var(--gray-700); line-height: 1.65; }
.scope-ex-label { font-size: 0.72rem; font-weight: 700; color: var(--gray-500); margin: 0.7rem 0 0.3rem; text-transform: uppercase; letter-spacing: 0.04em; }
.scope-ex { list-style: none; padding: 0; margin: 0; }
.scope-ex li { font-size: 0.82rem; color: var(--gray-600); padding-left: 1rem; position: relative; margin: 0.25rem 0; }
.scope-ex li::before { content: '–'; position: absolute; left: 0.2rem; color: var(--gray-400); }

/* 边界 / 方法 */
.boundary-grid, .method-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; margin: 1rem 0; }
@media (min-width: 768px) { .boundary-grid, .method-grid { grid-template-columns: repeat(2, 1fr); } }
.boundary-item, .method-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 1.1rem 1.2rem; }
.boundary-item h4, .method-card h4 { font-size: 1rem; margin: 0 0 0.4rem; }
.boundary-item h4 small, .method-card h4 small { font-weight: 500; color: var(--gray-500); font-size: 0.78rem; }
.boundary-item p, .method-card p { font-size: 0.88rem; }
.boundary-sub { margin: 0.6rem 0 0; padding-left: 1.1rem; }
.boundary-sub li { font-size: 0.85rem; color: var(--gray-600); margin: 0.35rem 0; line-height: 1.55; }

/* Scope 2 市场法数据层级 / 质量标准 */
.s2-block { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 1rem 1.2rem; margin: 1rem 0; }
.s2-block-h { font-size: 0.98rem; margin: 0 0 0.5rem; }
.s2-block-intro { font-size: 0.85rem; color: var(--gray-600); margin: 0 0 0.6rem; line-height: 1.6; }
.s2-list { margin: 0; padding-left: 1.4rem; }
.s2-list li { font-size: 0.85rem; color: var(--gray-700); margin: 0.4rem 0; line-height: 1.55; }
.s2-list li::marker { color: var(--primary-600); font-weight: 700; }

/* ---------- Scope 3 类别 ---------- */
.cat-group { margin: 1.2rem 0; }
.cat-group-h { font-size: 1rem; margin: 0 0 0.7rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--gray-200); }
.cat-group-h.up { color: var(--primary-700); border-bottom-color: var(--primary-200); }
.cat-group-h.down { color: #b45309; border-bottom-color: #fde68a; }
.cat-row { display: flex; gap: 0.8rem; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 0.85rem 1rem; margin-bottom: 0.6rem; }
.cat-num { flex: 0 0 1.9rem; height: 1.9rem; border-radius: 8px; background: var(--primary-100); color: var(--primary-800); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; }
.cat-body { flex: 1; }
.cat-name { font-weight: 600; color: var(--gray-900); font-size: 0.92rem; }
.cat-name small { font-weight: 400; color: var(--gray-400); font-size: 0.76rem; margin-left: 0.3rem; }
.cat-desc { font-size: 0.85rem; color: var(--gray-600); margin: 0.25rem 0; line-height: 1.55; }
.cat-min { font-size: 0.8rem; color: var(--gray-500); margin: 0.25rem 0 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; }
.data-table .fmeta { font-size: 0.78rem; color: var(--gray-500); margin: 0.2rem 0 0; line-height: 1.45; }
.tool-group { margin: 1.2rem 0; }
.tool-group h3 { font-size: 1.02rem; margin: 0 0 0.3rem; }

/* ---------- 中国电网因子 ---------- */
.grid-factor { background: linear-gradient(135deg, var(--primary-50), #fff); border: 1px solid var(--primary-200); border-radius: var(--radius-lg); padding: 1.3rem 1.4rem; }
.gf-main { font-size: 2rem; font-weight: 800; color: var(--primary-700); line-height: 1; }
.gf-unit { font-size: 0.9rem; font-weight: 600; color: var(--gray-500); }
.gf-meta { font-size: 0.82rem; color: var(--gray-600); margin-top: 0.4rem; }
.gf-others { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 0.4rem; }
.gf-others li { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.83rem; background: #fff; border: 1px solid var(--gray-200); border-radius: 8px; padding: 0.4rem 0.7rem; }
.gf-others .gf-label { color: var(--gray-600); }
.gf-others .gf-val { font-weight: 700; color: var(--gray-900); font-variant-numeric: tabular-nums; }
.gf-note { font-size: 0.8rem; color: var(--gray-500); margin: 0.9rem 0 0; line-height: 1.6; }

/* ---------- 盘查路径 ---------- */
.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: 220px 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; }

/* ---------- 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.danger { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.callout a { color: inherit; text-decoration: underline; }

/* ---------- 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); }

/* ---------- 免责 / 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; } }