/* ==========================================================
   山寺 SHANSI · 官方网站东方美学样式系统
   纯原生现代 CSS · 响应式自适应 · 零依赖秒级加载
   ========================================================== */

:root {
  --bg-primary: #0e0f0d;
  --bg-secondary: #161714;
  --bg-card: rgba(26, 28, 24, 0.75);
  --border-gold: rgba(222, 198, 128, 0.25);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --gold-primary: #dec680;
  --gold-light: #f3e5b8;
  --gold-dark: #a89052;
  --cinnabar: #c2382e;
  --sage-green: #719278;
  --text-main: #f0f0eb;
  --text-muted: rgba(240, 240, 235, 0.65);
  --text-dim: rgba(240, 240, 235, 0.4);
  --font-serif: -apple-system-ui-serif, "Songti SC", "Noto Serif SC", "Source Han Serif SC", STSong, Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, Monaco, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(222, 198, 128, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 10% 30%, rgba(113, 146, 120, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 70%, rgba(194, 56, 46, 0.03) 0%, transparent 50%);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.68;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* 顶部极简导航栏 */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(14, 15, 13, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--gold-primary);
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--border-gold);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 2px;
  color: #fff;
}

.brand-tag {
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--gold-primary);
  border: 1px solid var(--border-gold);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s ease;
  padding: 6px 4px;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold-primary);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold-primary);
  border-radius: 2px;
}

/* 主内容容器 */
main {
  flex: 1;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* 官方文档排版样式 */
.doc-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.doc-stamp-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.doc-stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--cinnabar);
  color: #fff;
  border-radius: 8px;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: bold;
  box-shadow: 0 3px 12px rgba(194, 56, 46, 0.4);
}

.doc-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
}

.doc-meta {
  font-size: 12.5px;
  color: var(--gold-primary);
  font-family: var(--font-serif);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* 章节卡片 */
.section-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: border-color 0.3s ease;
}

.section-card:hover {
  border-color: rgba(222, 198, 128, 0.3);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--gold-primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 16px;
  background: var(--gold-primary);
  border-radius: 2px;
}

.doc-p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
  font-family: var(--font-serif);
}

.doc-p:last-child {
  margin-bottom: 0;
}

/* 高亮提醒框（用于医疗免责与隐私红线） */
.alert-box {
  padding: 16px;
  border-radius: 10px;
  margin: 16px 0;
  font-size: 13.5px;
  line-height: 1.7;
  font-family: var(--font-serif);
}

.alert-box.danger {
  background: rgba(194, 56, 46, 0.12);
  border: 1px solid rgba(194, 56, 46, 0.4);
  color: #ff9d96;
}

.alert-box.success {
  background: rgba(113, 146, 120, 0.12);
  border: 1px solid rgba(113, 146, 120, 0.4);
  color: #aee0b8;
}

.alert-box.gold {
  background: rgba(222, 198, 128, 0.08);
  border: 1px solid rgba(222, 198, 128, 0.3);
  color: var(--gold-light);
}

.alert-box strong {
  color: #fff;
}

.check-list {
  list-style: none;
  margin-top: 10px;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--sage-green);
  font-weight: bold;
}

/* 官方联系方式与交互按钮 */
.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.04);
  padding: 16px 20px;
  border-radius: 10px;
  margin-top: 14px;
  border: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 12px;
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold-primary);
  font-weight: 600;
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(135deg, #dec680 0%, #ba9f52 100%);
  color: #121310;
  font-weight: 600;
  font-size: 13.5px;
  padding: 8px 18px;
  border-radius: 8px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  font-family: var(--font-sans);
}

.btn-gold:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.btn-gold:active {
  transform: translateY(0);
}

/* 常见问题解答 FAQ */
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-q {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-q::before {
  content: "问";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: rgba(222, 198, 128, 0.15);
  color: var(--gold-primary);
  font-size: 11px;
  border-radius: 4px;
}

.faq-a {
  font-family: var(--font-serif);
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 28px;
}

/* 页脚 */
footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(10, 11, 9, 0.8);
  padding: 36px 24px;
  margin-top: auto;
}

.footer-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--gold-primary);
}

.footer-verse {
  font-family: var(--font-serif);
  font-size: 13.5px;
  color: var(--gold-primary);
  letter-spacing: 2px;
}

.footer-copy {
  font-size: 11.5px;
  color: var(--text-dim);
}

/* 响应式调整 */
@media (max-width: 640px) {
  .nav-container {
    padding: 14px 16px;
  }
  .nav-links {
    gap: 14px;
  }
  .nav-links a {
    font-size: 13px;
  }
  main {
    padding: 28px 16px 48px;
  }
  .doc-title {
    font-size: 22px;
  }
  .section-card {
    padding: 18px 16px;
  }
}