/* ═══════════════════════════════════════
   邓工音频实验室 · dhxaudio 主题样式
   深色工业风格 · 铜金+青色配色
═══════════════════════════════════════ */

:root {
  --bg:       #06090f;
  --card:     #0e1520;
  --card2:    #151d2e;
  --border:   #1e2d45;
  --gold:     #c4935f;
  --gold-dim: #8a6340;
  --teal:     #38919e;
  --teal-dim: #235f68;
  --text:     #e5e1d8;
  --muted:    #6e7280;
  --success:  #4caf82;
  --radius:   10px;
  --mono:     'DM Mono', monospace;
  --max-w:    1100px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 300;
  line-height: 1.75;
  font-size: 15px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

/* ── 顶部导航 ── */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(6,9,15,0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: 58px;
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto; padding: 0 24px;
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.site-logo {
  font-family: 'Crimson Pro', serif;
  font-size: 19px; font-weight: 600;
  color: var(--gold); letter-spacing: .3px;
  display: flex; align-items: baseline; gap: 10px;
}
.site-logo span { color: var(--muted); font-weight: 400; font-size: 13px; font-family: var(--mono); }
.site-nav { display: flex; gap: 28px; }
.site-nav a { color: var(--muted); font-size: 14px; transition: color .2s; }
.site-nav a:hover { color: var(--text); }
.nav-toggle { display: none; }

/* ── 页面容器 ── */
.site-wrap { min-height: 100vh; }
.page-container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── Hero Banner ── */
.hero-banner {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(56,145,158,.1); border: 1px solid var(--teal-dim);
  color: var(--teal); border-radius: 20px;
  padding: 5px 14px; font-size: 12px; letter-spacing: .5px;
  margin-bottom: 24px;
}
.hero-banner h1 {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600; line-height: 1.2;
  margin-bottom: 18px;
}
.hero-banner h1 em { color: var(--gold); font-style: normal; }
.hero-banner > .hero-content > p {
  color: var(--muted); font-size: 16px; max-width: 520px; margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.btn-primary {
  display: inline-flex; align-items: center;
  padding: 13px 24px;
  background: linear-gradient(135deg, var(--teal), #2a7a86);
  border-radius: 8px; color: #fff;
  font-size: 14px; font-weight: 500; letter-spacing: .3px;
  transition: opacity .18s, transform .1s;
}
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }
.btn-ghost {
  display: inline-flex; align-items: center;
  padding: 13px 24px;
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--muted); font-size: 14px;
  transition: border-color .2s, color .2s;
}
.btn-ghost:hover { border-color: var(--teal); color: var(--text); }

.hero-stats {
  display: flex; gap: 40px; flex-wrap: wrap;
}
.stat-item { }
.stat-num {
  font-family: 'Crimson Pro', serif;
  font-size: 36px; font-weight: 600; color: var(--gold); line-height: 1;
}
.stat-num span { font-size: 18px; }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ── 工具入口区 ── */
.tools-section { margin-bottom: 56px; }
.section-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 20px;
}
.section-header h2 {
  font-family: 'Crimson Pro', serif;
  font-size: 26px; font-weight: 600;
}
.section-sub { font-size: 13px; color: var(--muted); }
.see-all { font-size: 13px; color: var(--teal); }
.see-all:hover { color: var(--text); }

.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tool-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  display: flex; align-items: center; gap: 14px;
  transition: border-color .2s, transform .15s;
  position: relative;
}
.tool-card:not(.coming):hover { border-color: var(--teal); transform: translateY(-2px); }
.tool-card.coming { opacity: .55; cursor: default; }
.tool-icon { font-size: 24px; flex-shrink: 0; }
.tool-body h3 { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.tool-body p { font-size: 12px; color: var(--muted); }
.tool-tag {
  position: absolute; top: 12px; right: 12px;
  font-size: 10px; padding: 2px 8px; border-radius: 20px;
}
.tool-tag.free { background: rgba(76,175,130,.12); color: var(--success); border: 1px solid rgba(76,175,130,.25); }
.tool-tag.soon { background: rgba(110,114,128,.1); color: var(--muted); border: 1px solid var(--border); }

/* ── 主布局：文章+侧边栏 ── */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
  padding-bottom: 80px;
}

/* ── 文章列表 ── */
.post-list { }
.post-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  margin-bottom: 20px;
  transition: border-color .2s;
}
.post-card:hover { border-color: rgba(196,147,95,.3); }
.post-meta-top { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.post-title { font-family: 'Crimson Pro', serif; font-size: 22px; font-weight: 600; margin-bottom: 10px; line-height: 1.3; }
.post-title a:hover { color: var(--gold); }
.deng-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(196,147,95,.08); border: 1px solid rgba(196,147,95,.2);
  color: var(--gold-dim); border-radius: 4px;
  padding: 3px 10px; font-size: 11px;
  margin-bottom: 12px;
}
.deng-icon { font-size: 12px; }
.post-excerpt { font-size: 14px; color: var(--muted); margin-bottom: 16px; line-height: 1.7; }
.post-footer { display: flex; align-items: center; justify-content: space-between; }
.read-more { font-size: 13px; color: var(--teal); }
.read-more:hover { color: var(--text); }
.post-comments { font-size: 12px; color: var(--muted); }

/* ── 翻页 ── */
.pagination { text-align: center; padding: 20px 0; }
.pagination a {
  display: inline-block; padding: 8px 16px; margin: 0 4px;
  border: 1px solid var(--border); border-radius: 6px;
  color: var(--muted); font-size: 13px; transition: all .2s;
}
.pagination a:hover { border-color: var(--teal); color: var(--text); }

/* ── 空状态 ── */
.empty-state {
  text-align: center; padding: 60px 20px;
  color: var(--muted);
}
.empty-icon { font-size: 40px; margin-bottom: 12px; }

/* ── 侧边栏 ── */
.sidebar { position: sticky; top: 78px; }
.widget {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  margin-bottom: 16px;
}
.widget-title {
  font-size: 11px; font-weight: 500; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--muted);
  margin-bottom: 14px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.about-widget { text-align: center; }
.avatar-ring {
  width: 68px; height: 68px; border-radius: 50%;
  border: 2px solid var(--gold);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.avatar-placeholder {
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-dim), var(--teal-dim));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 500; color: #fff;
}
.about-widget h3 { font-size: 15px; font-weight: 500; margin-bottom: 8px; }
.about-widget p { font-size: 12px; color: var(--muted); margin-bottom: 14px; }
.social-mini { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.s-btn {
  padding: 5px 12px; border: 1px solid var(--border);
  border-radius: 20px; font-size: 11px; color: var(--muted);
  transition: all .2s; cursor: pointer;
}
.s-btn:hover { border-color: var(--teal); color: var(--text); }
.widget-tool-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 0; border-bottom: 1px solid var(--border);
  font-size: 13px; color: var(--text); transition: color .18s;
}
.widget-tool-link:last-child { border-bottom: none; }
.widget-tool-link:hover { color: var(--teal); }
.widget-tool-link span {
  font-size: 10px; color: var(--success);
  background: rgba(76,175,130,.1); padding: 2px 6px; border-radius: 10px;
}
.widget-post-link {
  display: block; padding: 7px 0; border-bottom: 1px solid var(--border);
  font-size: 13px; color: var(--muted); transition: color .18s;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.widget-post-link:last-child { border-bottom: none; }
.widget-post-link:hover { color: var(--text); }

/* ── 文章详情页 ── */
.post-single { }
.article-full { }
.article-header {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px;
  margin-bottom: 20px;
}
.article-meta-top { font-size: 12px; color: var(--muted); margin-bottom: 16px; }
.article-meta-top .sep { margin: 0 6px; }
.article-title {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 600; line-height: 1.25;
  margin-bottom: 24px;
}
.author-card {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  background: rgba(196,147,95,.06); border: 1px solid rgba(196,147,95,.15);
  border-radius: 8px;
}
.author-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-dim), var(--teal-dim));
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 500; color: #fff; flex-shrink: 0;
}
.author-name { font-size: 14px; font-weight: 500; }
.author-desc { font-size: 12px; color: var(--muted); }

/* 正文排版 */
.article-content {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px;
  margin-bottom: 20px; line-height: 1.85;
}
.article-content h2 { font-family: 'Crimson Pro', serif; font-size: 22px; font-weight: 600; margin: 32px 0 14px; color: var(--gold); }
.article-content h3 { font-size: 16px; font-weight: 500; margin: 24px 0 12px; }
.article-content p { margin-bottom: 16px; color: var(--text); }
.article-content a { color: var(--teal); border-bottom: 1px solid rgba(56,145,158,.3); }
.article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 16px; }
.article-content li { margin-bottom: 8px; color: var(--text); }
.article-content blockquote {
  border-left: 3px solid var(--gold);
  padding: 12px 20px; margin: 20px 0;
  background: rgba(196,147,95,.06);
  color: var(--muted); border-radius: 0 6px 6px 0;
}
.article-content code {
  font-family: var(--mono); font-size: 13px;
  background: var(--card2); padding: 2px 6px; border-radius: 4px;
  color: var(--teal);
}
.article-content pre {
  background: var(--card2); border: 1px solid var(--border);
  border-radius: 8px; padding: 20px; overflow-x: auto; margin-bottom: 16px;
}
.article-content img { border-radius: 8px; margin: 16px 0; }

/* 邓工建议 */
.deng-conclusion {
  background: linear-gradient(135deg, rgba(196,147,95,.08), rgba(56,145,158,.06));
  border: 1px solid rgba(196,147,95,.25);
  border-radius: var(--radius); padding: 28px;
  margin-bottom: 20px;
}
.deng-conclusion-header {
  display: flex; align-items: center; gap: 10px;
  font-size: 16px; font-weight: 500; color: var(--gold);
  margin-bottom: 12px;
}
.deng-icon-lg { font-size: 20px; }
.deng-conclusion p { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.conclusion-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-gold {
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--gold), #a87840);
  border-radius: 7px; color: #fff;
  font-size: 13px; font-weight: 500;
  transition: opacity .18s;
}
.btn-gold:hover { opacity: .88; }
.btn-ghost-sm {
  padding: 10px 20px;
  border: 1px solid var(--border); border-radius: 7px;
  color: var(--muted); font-size: 13px;
  transition: all .2s;
}
.btn-ghost-sm:hover { border-color: var(--teal); color: var(--text); }

/* 标签 */
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.tag {
  background: var(--card2); border: 1px solid var(--border);
  padding: 4px 12px; border-radius: 20px;
  font-size: 12px; color: var(--muted);
}

/* 上下篇 */
.article-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  margin-bottom: 20px;
}
.nav-prev, .nav-next {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  transition: border-color .2s;
}
.nav-prev:hover, .nav-next:hover { border-color: var(--teal); }
.nav-prev span, .nav-next span { font-size: 11px; color: var(--muted); display: block; margin-bottom: 4px; }
.nav-prev a, .nav-next a { font-size: 13px; }

/* ── 评论 ── */
.comments-section {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  margin-bottom: 20px;
}
.comments-title { font-size: 15px; font-weight: 500; margin-bottom: 20px; }
.comments-list { list-style: none; }
.comment-item {
  display: flex; gap: 14px; padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.comment-avatar {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  background: var(--card2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--muted);
}
.comment-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; }
.comment-author { font-size: 13px; font-weight: 500; }
.comment-meta time { font-size: 12px; color: var(--muted); }
.comment-text { font-size: 14px; color: var(--text); margin-bottom: 8px; }
.comment-reply { font-size: 12px; color: var(--teal); cursor: pointer; }

.comment-form-wrap { margin-top: 24px; }
.comment-form { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.comment-form input, .comment-form textarea {
  background: var(--card2); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text);
  font-family: inherit; font-size: 14px;
  padding: 10px 14px; outline: none;
  transition: border-color .18s;
}
.comment-form input:focus, .comment-form textarea:focus { border-color: var(--teal); }
.comment-form textarea { resize: vertical; min-height: 100px; }
.submit-btn {
  align-self: flex-start; padding: 11px 24px;
  background: linear-gradient(135deg, var(--teal), #2a7a86);
  border: none; border-radius: 7px; color: #fff;
  font-family: inherit; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: opacity .18s;
}
.submit-btn:hover { opacity: .88; }
.comments-closed { color: var(--muted); font-size: 14px; padding: 20px 0; }

/* ── 页脚 ── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--card);
  padding: 40px 0 32px;
  margin-top: 20px;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.social-row {
  display: flex; align-items: center; gap: 20px;
  margin-bottom: 28px; flex-wrap: wrap;
}
.social-label { font-size: 12px; color: var(--muted); letter-spacing: 1px; }
.social-links { display: flex; gap: 10px; flex-wrap: wrap; }
.social-item {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px; border: 1px solid var(--border);
  border-radius: 7px; font-size: 13px; color: var(--muted);
  cursor: pointer; transition: all .2s;
}
.social-item:hover { color: var(--text); }
.social-item.wechat:hover { border-color: #07c160; color: #07c160; }
.social-item.douyin:hover { border-color: #fe2c55; color: #fe2c55; }
.social-item.video:hover { border-color: var(--gold); color: var(--gold); }
.social-item.xiaohongshu:hover { border-color: #ff2741; color: #ff2741; }

/* 微信二维码弹层 */
.qr-popup {
  display: none; position: fixed; inset: 0; z-index: 500;
  background: rgba(6,9,15,.85); backdrop-filter: blur(8px);
  align-items: center; justify-content: center;
}
.qr-popup.active { display: flex; }
.qr-box {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 36px; text-align: center;
  max-width: 280px; width: 90%;
}
.qr-placeholder {
  width: 200px; height: 200px; margin: 0 auto 16px;
  background: var(--card2); border: 1px dashed var(--border);
  border-radius: 12px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 8px;
}
.qr-icon { font-size: 36px; }
.qr-text { font-size: 14px; font-weight: 500; }
.qr-name { font-size: 13px; color: var(--gold); }
.qr-hint { font-size: 11px; color: var(--muted); margin-top: 4px; }
.qr-close {
  margin-top: 16px; padding: 8px 20px;
  background: transparent; border: 1px solid var(--border);
  border-radius: 6px; color: var(--muted);
  font-family: inherit; font-size: 13px; cursor: pointer;
  transition: all .2s;
}
.qr-close:hover { border-color: var(--teal); color: var(--text); }

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding-top: 20px; border-top: 1px solid var(--border);
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--muted); transition: color .2s; }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 12px; color: var(--muted); }

/* ── 响应式 ── */
@media (max-width: 900px) {
  .main-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .tools-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .hero-banner { padding: 40px 0 36px; }
  .article-header { padding: 24px; }
  .article-content { padding: 24px; }
  .tools-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .article-nav { grid-template-columns: 1fr; }
  .site-nav { display: none; }
  .nav-toggle {
    display: flex; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
  }
  .nav-toggle span { display: block; width: 22px; height: 2px; background: var(--muted); border-radius: 1px; }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 28px; }
}