/* 镀金端子.中国 —— 原创鎏金墨黑主题（gp- 前缀，站点级隔离） */
:root {
  --ink: #0E1116;
  --ink-2: #12161D;
  --panel: #161B22;
  --panel-2: #1C2230;
  --gold: #D4AF37;
  --gold-2: #E6C25A;
  --gold-soft: rgba(212, 175, 55, 0.14);
  --steel: #E8ECF2;
  --text: #D7DCE5;
  --muted: #9AA4B2;
  --line: #2A2F3A;
  --line-2: #353C4A;
  --h2-inset: 16px;
  --maxw: 1200px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #1a2030 0%, var(--ink) 55%) fixed, var(--ink);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold-2); text-decoration: none; transition: color .15s; }
a:hover { color: var(--gold); }

img { max-width: 100%; height: auto; }

/* 布局容器：面包屑与正文共享同一左内边距，保证 H2 左缘对齐 */
.gp-container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部固定导航 */
.gp-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 17, 22, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.gp-header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.gp-logo {
  font-weight: 800;
  font-size: 19px;
  letter-spacing: .5px;
  color: var(--steel);
  white-space: nowrap;
}
.gp-logo b { color: var(--gold); }
.gp-nav { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.gp-nav a { color: var(--muted); font-size: 15px; }
.gp-nav a:hover, .gp-nav a.active { color: var(--gold-2); }
.gp-burger {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--line-2);
  color: var(--steel);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 18px;
  cursor: pointer;
}

/* 面包屑 */
.gp-breadcrumb {
  padding: 18px 0 6px;
  font-size: 13.5px;
  color: var(--muted);
}
.gp-breadcrumb a { color: var(--muted); }
.gp-breadcrumb a:hover { color: var(--gold-2); }
.gp-breadcrumb span.sep { margin: 0 8px; color: var(--line-2); }
.gp-breadcrumb span.cur { color: var(--text); }

/* 详情页栅格：内容在前、TOC 在后 */
.gp-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 40px;
  padding-bottom: 60px;
}
.gp-content-main { min-width: 0; }
.gp-content-main h1 {
  font-size: 30px;
  line-height: 1.3;
  color: var(--steel);
  margin: 8px 0 18px;
}
.gp-content-main h2 {
  font-size: 22px;
  color: var(--steel);
  margin: 38px 0 14px;
  padding-left: var(--h2-inset);
  border-left: 3px solid var(--gold);
}
.gp-content-main h3 {
  font-size: 18px;
  color: var(--gold-2);
  margin: 26px 0 10px;
  padding-left: var(--h2-inset);
}
.gp-summary {
  background: linear-gradient(180deg, var(--gold-soft), transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--text);
  font-size: 15.5px;
}
.gp-keywords { color: var(--muted); font-size: 13.5px; margin: 10px 0; }
.gp-keywords b { color: var(--gold-2); font-weight: 600; }
.gp-content-main time { color: var(--muted); font-size: 13px; display: inline-block; margin-bottom: 8px; }
.gp-content-main p { margin: 12px 0; }
.gp-content-main ul, .gp-content-main ol { padding-left: 22px; }
.gp-content-main li { margin: 6px 0; }

/* 结论块 / 引用 */
.gp-content-main blockquote {
  margin: 18px 0;
  padding: 12px 18px;
  border-left: 3px solid var(--gold);
  background: var(--panel);
  border-radius: 0 10px 10px 0;
  color: var(--text);
}

/* 表格：覆盖全部 <table>（含 Markdown 裸 table）+ class 选择器 */
.gp-content-main table,
.gp-page-wrap table,
table.gp-spec {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14.5px;
  border: 1px solid var(--line-2);
}
.gp-content-main table th,
.gp-content-main table td,
.gp-page-wrap table th,
.gp-page-wrap table td,
table.gp-spec th,
table.gp-spec td {
  border: 1px solid var(--line-2);
  padding: 10px 12px;
  text-align: left;
}
.gp-content-main table th,
.gp-page-wrap table th,
table.gp-spec th {
  background: linear-gradient(180deg, #223049, #19222f);
  color: var(--gold-2);
  font-weight: 700;
}
.gp-content-main table tbody tr:nth-child(even),
.gp-page-wrap table tbody tr:nth-child(even),
table.gp-spec tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.025);
}

/* 标签 */
.tag-text {
  display: inline-block;
  background: var(--gold-soft);
  color: var(--gold-2);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12.5px;
  margin: 2px 4px 2px 0;
}

/* FAQ：裸 details */
.gp-faq { margin: 34px 0; }
.gp-faq > h2 {
  font-size: 22px; color: var(--steel); padding-left: var(--h2-inset);
  border-left: 3px solid var(--gold); margin-bottom: 14px;
}
.gp-faq-item {
  border: 1px solid var(--line);
  border-radius: 10px;
  margin: 10px 0;
  background: var(--panel);
  overflow: hidden;
}
.gp-faq-item > summary {
  cursor: pointer;
  padding: 13px 16px;
  font-weight: 600;
  color: var(--steel);
  list-style: none;
}
.gp-faq-item > summary::before { content: "＋ "; color: var(--gold); }
.gp-faq-item[open] > summary::before { content: "－ "; }
.gp-faq-a { padding: 0 16px 14px; color: var(--text); }

/* 相关阅读 / 相关产品 */
.gp-related { margin: 34px 0; }
.gp-related h2 {
  font-size: 22px; color: var(--steel); padding-left: var(--h2-inset);
  border-left: 3px solid var(--gold); margin-bottom: 14px;
}
.gp-related ul { list-style: none; padding: 0; }
.gp-related li {
  padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px;
  margin: 8px 0; background: var(--panel);
}
.gp-related li a { font-weight: 600; }
.gp-related li span { display: block; color: var(--muted); font-size: 13.5px; margin-top: 4px; }

/* 右侧 TOC */
.gp-toc-aside { min-width: 0; }
.gp-toc-panel, .gp-cat-panel {
  position: sticky;
  top: 84px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
}
.gp-toc-panel > summary, .gp-cat-panel > summary {
  cursor: pointer;
  padding: 13px 16px;
  font-weight: 700;
  color: var(--steel);
  background: var(--panel-2);
  list-style: none;
}
.gp-toc-panel > summary::after, .gp-cat-panel > summary::after {
  content: "▾"; float: right; color: var(--gold); transition: transform .2s;
}
.gp-toc-panel:not([open]) > summary::after, .gp-cat-panel:not([open]) > summary::after { transform: rotate(-90deg); }
.gp-toc-body { padding: 10px 16px 16px; max-height: calc(100vh - 120px); overflow-y: auto; }
.gp-toc-body a { display: block; color: var(--muted); font-size: 13.5px; padding: 5px 0; border-bottom: 1px dashed var(--line); }
.gp-toc-body a:hover { color: var(--gold-2); }
.gp-toc-body .sub a { padding-left: 14px; font-size: 12.5px; }

/* 列表 / 分类页：侧栏在前、内容在后 → 240px minmax(0,1fr) */
.gp-list-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 40px; padding-bottom: 60px; }
.gp-cat-side { min-width: 0; }
.gp-cat-list { list-style: none; padding: 0; margin: 0; }
.gp-cat-list li { margin: 4px 0; }
.gp-cat-list a {
  display: block; padding: 9px 14px; border-radius: 8px;
  color: var(--muted); border: 1px solid transparent;
}
.gp-cat-list a:hover, .gp-cat-list a.active { color: var(--gold-2); background: var(--gold-soft); border-color: rgba(212,175,55,.3); }
.gp-cat-desc { color: var(--muted); font-size: 14px; margin: 12px 0 22px; }
.gp-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.gp-card {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  padding: 18px; transition: transform .15s, border-color .15s;
}
.gp-card:hover { transform: translateY(-3px); border-color: rgba(212,175,55,.45); }
.gp-card h3 { margin: 0 0 8px; font-size: 17px; color: var(--steel); }
.gp-card .meta { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.gp-card p { color: var(--text); font-size: 14px; margin: 0; }

/* 页面（about 等）卡片 */
.gp-page-wrap { max-width: 880px; margin: 0 auto; padding-bottom: 60px; }
.gp-page-wrap h1 { font-size: 30px; color: var(--steel); margin: 10px 0 18px; }
.gp-page-wrap h2 { font-size: 22px; color: var(--steel); margin: 34px 0 12px; padding-left: 16px; border-left: 3px solid var(--gold); }
.gp-page-wrap h3 { font-size: 18px; color: var(--gold-2); margin: 24px 0 10px; }

/* 首页 */
.gp-hero {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-radius: 20px;
  padding: 70px 48px; margin: 30px 0 40px;
  background:
    radial-gradient(800px 400px at 85% 10%, rgba(212,175,55,.18), transparent 60%),
    linear-gradient(135deg, #15202e, #0f141b);
}
.gp-hero h1 { font-size: 42px; line-height: 1.2; color: var(--steel); margin: 0 0 16px; }
.gp-hero h1 b { color: var(--gold); }
.gp-hero p { max-width: 640px; color: var(--text); font-size: 17px; }
.gp-hero .cta { margin-top: 26px; display: flex; gap: 14px; flex-wrap: wrap; }
.gp-btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px; font-weight: 700;
  background: linear-gradient(180deg, var(--gold-2), var(--gold)); color: #1a1407;
}
.gp-btn.ghost { background: transparent; border: 1px solid var(--gold); color: var(--gold-2); }

.gp-section { margin: 46px 0; }
.gp-section > h2 {
  font-size: 26px; color: var(--steel); margin: 0 0 6px;
  display: flex; align-items: center; gap: 12px;
}
.gp-section > h2::before { content: ""; width: 6px; height: 26px; background: var(--gold); border-radius: 4px; }
.gp-section > .sub { color: var(--muted); margin-bottom: 22px; }

.gp-pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.gp-pillar {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  padding: 22px; position: relative; overflow: hidden;
}
.gp-pillar::before {
  content: ""; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px;
  background: radial-gradient(circle, rgba(212,175,55,.22), transparent 70%); border-radius: 50%;
}
.gp-pillar .no { color: var(--gold); font-weight: 800; font-size: 14px; letter-spacing: 1px; }
.gp-pillar h3 { margin: 8px 0 10px; font-size: 19px; color: var(--steel); }
.gp-pillar p { color: var(--muted); font-size: 14px; margin: 0; }
.gp-pillar a { color: var(--gold-2); font-size: 13.5px; display: inline-block; margin-top: 12px; }

.gp-cat-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 18px; }
.gp-cat-chip {
  border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; background: var(--panel);
}
.gp-cat-chip b { color: var(--gold-2); display: block; margin-bottom: 4px; }
.gp-cat-chip span { color: var(--muted); font-size: 13px; }

.gp-feat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }

/* 悬浮胶囊 */
.gp-fab {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%);
  z-index: 60; display: flex; flex-direction: column; gap: 12px;
}
.gp-fab button, .gp-fab a.fab {
  width: 56px; height: 56px; border-radius: 28px; border: none; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #1a1407; font-size: 11px; font-weight: 700; gap: 2px;
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  box-shadow: 0 8px 22px rgba(212,175,55,.35);
}
.gp-fab button svg, .gp-fab a.fab svg { width: 22px; height: 22px; }
.gp-fab .fab-mail { background: linear-gradient(135deg, #5ec8d8, #2f9fb3); color: #04222a; }
.gp-fab .fab-card { background: linear-gradient(135deg, #b89bff, #7d5cf0); color: #1a0f3a; }

.gp-card-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); display: none;
  align-items: center; justify-content: center; z-index: 80; padding: 20px;
}
.gp-card-modal.show { display: flex; }
.gp-card-modal img { width: 300px; height: 500px; object-fit: contain; background: #fff; border-radius: 8px; }
.gp-card-modal .close { position: absolute; top: 24px; right: 30px; font-size: 30px; color: #fff; cursor: pointer; background: none; border: none; }

/* 归档 */
.gp-archive-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.gp-archive-cols h3 { color: var(--gold-2); border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.gp-archive-cols ul { list-style: none; padding: 0; }
.gp-archive-cols li { padding: 7px 0; border-bottom: 1px dashed var(--line); }
.gp-archive-cols a { color: var(--text); }

/* 页脚 */
.gp-footer { border-top: 1px solid var(--line); margin-top: 60px; background: var(--ink-2); }
.gp-footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 36px 24px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
.gp-footer h4 { color: var(--steel); margin: 0 0 12px; font-size: 15px; }
.gp-footer a { color: var(--muted); display: block; padding: 3px 0; font-size: 13.5px; }
.gp-footer .copy { grid-column: 1 / -1; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); padding-top: 16px; margin-top: 8px; }

/* 响应式：≤1024 折叠为单列，面板收起（JS 控制 open 状态） */
@media (max-width: 1024px) {
  .gp-detail-layout { grid-template-columns: 1fr; }
  .gp-toc-aside { order: -1; }
  .gp-toc-panel, .gp-cat-panel { position: static; top: auto; }
  .gp-list-layout { grid-template-columns: 1fr; }
  .gp-cat-side { order: -1; }
  .gp-nav { display: none; }
  .gp-nav.open {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--ink-2); border-bottom: 1px solid var(--line); padding: 12px 24px;
  }
  .gp-burger { display: block; }
  .gp-hero { padding: 44px 24px; }
  .gp-hero h1 { font-size: 32px; }
  .gp-archive-cols { grid-template-columns: 1fr; }
  .gp-fab { right: 12px; }
  .gp-fab button, .gp-fab a.fab { width: 48px; height: 48px; }
}
@media (max-width: 600px) {
  .gp-footer-inner { grid-template-columns: 1fr; }
  .gp-content-main h1 { font-size: 25px; }
}