/* ============================================
   搬砖营地 BrickCamp - Guide/Page Stylesheet
   Dark Industrial · Gold Accent · Gaming Theme
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #08080c; --surface: #14141f; --border: #2a2a3e;
  --gold: #f5b342; --gold-dim: #8b6914; --gold-glow: rgba(245,179,66,0.15);
  --text: #f0ede8; --text2: #a09e9c; --text3: #6b6a68;
  --radius: 12px; --font: -apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
}
body {
  font-family: var(--font); background: var(--bg); color: var(--text);
  line-height: 1.8; -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse 60% 40% at 50% 20%, rgba(245,179,66,0.03) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 80% 80%, rgba(59,130,246,0.02) 0%, transparent 50%);
  min-height: 100vh;
}

/* Progress bar */
#progress-bar {
  position: fixed; top: 0; left: 0; width: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold));
  z-index: 999; transition: width 0.1s;
}

/* Container */
.container {
  max-width: 800px; margin: 0 auto; padding: 48px 24px 64px;
  position: relative;
}
.container::before {
  content: ''; position: absolute; top: 0; left: 24px; right: 24px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold-dim), var(--gold), var(--gold-dim), transparent);
  border-radius: 2px;
}

/* Article image placeholder */
.guide-img {
  width: 100%; height: 200px; border-radius: var(--radius);
  margin: 24px 0; display: flex; align-items: center; justify-content: center;
  font-size: 64px; position: relative; overflow: hidden;
  border: 1px solid var(--border);
}
.guide-img::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(245,179,66,0.1) 0%, transparent 50%, rgba(59,130,246,0.05) 100%);
  pointer-events: none;
}

/* TOC */
.toc {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px; margin: 24px 0 32px;
}
.toc-title {
  font-size: 14px; font-weight: 700; color: var(--gold);
  margin-bottom: 12px; letter-spacing: 1px;
}
.toc-list { list-style: none; padding: 0; margin: 0; }
.toc-list li { margin: 4px 0; }
.toc-list a {
  color: var(--text3); text-decoration: none; font-size: 14px;
  line-height: 1.8; transition: 0.2s; display: block; padding: 2px 0;
  padding-left: 16px; border-left: 2px solid transparent;
}
.toc-list a:hover { color: var(--gold); border-left-color: var(--gold-dim); padding-left: 20px; }

h1 {
  font-size: 30px; font-weight: 900; color: var(--text);
  margin-bottom: 8px; line-height: 1.3; letter-spacing: -0.5px;
}
.meta {
  display: flex; flex-wrap: wrap; gap: 16px;
  color: var(--text3); font-size: 13px; margin-bottom: 32px;
  padding-bottom: 20px; border-bottom: 1px solid var(--border);
}
.meta span { display: flex; align-items: center; gap: 4px; }

h2 {
  font-size: 22px; font-weight: 800; color: var(--gold);
  margin: 40px 0 16px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  position: relative; scroll-margin-top: 24px;
}
h2::before {
  content: '◆ '; color: var(--gold-dim); font-size: 14px;
}

p {
  color: var(--text2); font-size: 15px; margin-bottom: 16px; line-height: 1.9;
}

/* Lists */
ul, ol { color: var(--text2); font-size: 15px; margin: 12px 0 20px; padding-left: 24px; line-height: 1.9; }
ul { list-style: disc; }
ol { list-style: decimal; }
li { margin-bottom: 4px; }
li::marker { color: var(--gold-dim); }

/* Highlight boxes */
.tip-box {
  background: var(--gold-glow); border: 1px solid var(--gold-dim);
  border-radius: var(--radius); padding: 16px 20px; margin: 20px 0;
  color: var(--text2); font-size: 14px; line-height: 1.7;
}
.tip-box::before { content: '💡 '; font-size: 16px; }
.warn-box {
  background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius); padding: 16px 20px; margin: 20px 0;
  color: var(--text2); font-size: 14px; line-height: 1.7;
}
.warn-box::before { content: '⚠️ '; font-size: 16px; }

table {
  width: 100%; border-collapse: collapse; margin: 20px 0 28px;
  font-size: 14px; border-radius: var(--radius); overflow: hidden;
}
th {
  background: #1a1a2e; color: var(--gold); padding: 12px 14px;
  text-align: left; font-weight: 700; border: 1px solid var(--border);
  font-size: 13px; letter-spacing: 0.5px;
}
td {
  padding: 11px 14px; border: 1px solid var(--border);
  color: var(--text2);
}
tr:nth-child(even) td { background: #0e0e18; }
tr:hover td { background: #1a1a28; }

/* Responsive table wrapper */
.table-wrap { overflow-x: auto; margin: 20px 0 28px; border-radius: var(--radius); }
.table-wrap table { margin: 0; }

.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text3); margin-bottom: 24px;
  padding-bottom: 16px; border-bottom: 1px solid var(--border);
}
.breadcrumb a { color: var(--text3); text-decoration: none; transition: 0.2s; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: var(--text3); opacity: 0.4; }
.breadcrumb .current { color: var(--text2); }

/* Related */
.related {
  margin-top: 48px; padding-top: 32px;
  border-top: 1px solid var(--border);
}
.related h2 { font-size: 18px; margin-bottom: 20px; }
.related h2::before { content: '📌 '; color: var(--gold-dim); font-size: 16px; }
.related-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.related-link {
  display: block; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text2); text-decoration: none;
  font-size: 14px; line-height: 1.5; transition: 0.3s;
}
.related-link:hover {
  border-color: var(--gold-dim); color: var(--gold);
  transform: translateY(-2px); box-shadow: var(--gold-glow) 0 4px 16px;
}
.related-link .rl-game {
  font-size: 11px; color: var(--text3); margin-top: 4px;
}

/* Back button */
.back {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 40px; padding: 12px 28px;
  background: var(--gold-glow); border: 1px solid var(--gold-dim);
  border-radius: 8px; color: var(--gold); text-decoration: none;
  font-size: 14px; font-weight: 600; font-family: var(--font);
  transition: 0.3s ease; cursor: pointer;
}
.back:hover {
  background: var(--gold); color: #0a0a0f; transform: translateY(-2px);
}

/* Back to top */
#back-top {
  position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px;
  border-radius: 50%; background: var(--surface); border: 1px solid var(--border);
  color: var(--gold); font-size: 20px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(20px); pointer-events: none;
  transition: 0.3s; z-index: 99;
}
#back-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
#back-top:hover { background: var(--gold); color: #0a0a0f; border-color: var(--gold); }

@media (max-width: 600px) {
  .container { padding: 32px 16px 48px; }
  h1 { font-size: 24px; }
  h2 { font-size: 19px; }
  table { font-size: 12px; }
  th, td { padding: 8px 10px; }
  #back-top { bottom: 20px; right: 20px; width: 38px; height: 38px; font-size: 16px; }
  .guide-img { height: 140px; font-size: 48px; }
}