/* ============================================================
   国鼎财税顾问 · 文章板块专用样式
   视觉与主站「鼎 · 东方财智」一致：宣纸暖白 × 深墨蓝 × 香槟金
   ============================================================ */

:root {
  --paper: #f7f3ea;
  --paper-2: #fdfbf5;
  --paper-3: #efe9db;
  --ink: #22303d;
  --ink-2: #5a6874;
  --ink-3: #939c9f;
  --navy: #142838;
  --navy-2: #1c3648;
  --navy-3: #24455c;
  --gold: #b08d4f;
  --gold-2: #d3b671;
  --gold-3: #8f6f38;
  --gold-soft: rgba(176, 141, 79, .12);
  --red: #a83232;
  --red-2: #c04343;
  --red-soft: #f9ecec;
  --line: #e3dccb;
  --line-dark: rgba(211, 182, 113, .22);
  --shadow-lg: 0 24px 60px -18px rgba(20, 40, 56, .25);
  --shadow-md: 0 12px 34px -12px rgba(20, 40, 56, .18);
  --shadow-sm: 0 4px 14px -4px rgba(20, 40, 56, .12);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--gold); color: #fff; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部条 ---------- */
.topbar { position: fixed; inset: 0 0 auto 0; z-index: 100; border-bottom: 1px solid transparent; transition: all .35s ease; }
.topbar.scrolled { background: rgba(247, 243, 234, .9); backdrop-filter: blur(12px); border-bottom-color: var(--line); box-shadow: 0 6px 24px -12px rgba(20, 40, 56, .14); }
.topbar-in { max-width: 1200px; margin: 0 auto; padding: 0 28px; height: 66px; display: flex; align-items: center; gap: 26px; }
.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand-logo { width: 28px; height: 28px; object-fit: contain; }
.brand-text strong { display: block; font-family: var(--serif); font-size: 17px; color: var(--navy); line-height: 1.2; }
.brand-text em { display: block; font-style: normal; font-size: 9px; letter-spacing: .26em; color: var(--gold-3); margin-top: 1px; }
.topbar-nav { margin-left: auto; display: flex; align-items: center; gap: 24px; }
.topbar-nav a { font-size: 13.5px; color: var(--ink-2); transition: color .25s; }
.topbar-nav a:hover { color: var(--gold-3); }
.topbar-nav a.nc { background: linear-gradient(135deg, var(--gold-2), var(--gold) 55%, var(--gold-3)); color: #fff; padding: 8px 20px; border-radius: 4px; font-weight: 600; }

/* ---------- 列表页页头 ---------- */
.list-hero {
  position: relative;
  padding: 132px 0 54px;
  background:
    radial-gradient(760px 340px at 85% -10%, rgba(211, 182, 113, .18), transparent 62%),
    radial-gradient(560px 300px at -6% 8%, rgba(20, 40, 56, .05), transparent 60%),
    var(--paper);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.list-hero-in { position: relative; text-align: center; }
.list-tag { display: inline-flex; align-items: center; gap: 12px; font-size: 12px; font-weight: 600; letter-spacing: .4em; text-indent: .4em; color: var(--gold-3); }
.list-tag::before, .list-tag::after { content: ""; width: 30px; height: 1px; background: linear-gradient(90deg, transparent, var(--gold)); }
.list-tag::after { background: linear-gradient(90deg, var(--gold), transparent); }
.list-hero h1 { font-family: var(--serif); font-size: clamp(30px, 4.4vw, 44px); font-weight: 700; color: var(--navy); letter-spacing: .05em; margin-top: 16px; line-height: 1.3; }
.list-sub { margin-top: 14px; color: var(--ink-2); font-size: 15.5px; }
.list-stats { margin-top: 26px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.lstat { background: var(--paper-2); border: 1px solid var(--line); border-radius: 99px; padding: 8px 18px; font-size: 13px; color: var(--ink-2); }
.lstat b { color: var(--red); font-family: var(--serif); font-size: 16px; margin-right: 3px; }

/* 筛选 */
.filter-bar { position: sticky; top: 66px; z-index: 50; background: rgba(247, 243, 234, .92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.filter-in { max-width: 1040px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.fbtn { border: 1px solid var(--line); background: var(--paper-2); border-radius: 99px; padding: 7px 18px; font-size: 13.5px; color: var(--ink-2); cursor: pointer; transition: .2s; font-family: inherit; }
.fbtn:hover { border-color: var(--gold); }
.fbtn.on { background: var(--navy); border-color: var(--navy); color: #fff; }
.fsearch { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.fsearch input {
  width: 220px; border: 1px solid var(--line); background: #fff; border-radius: 99px;
  padding: 8px 16px; font-size: 13.5px; color: var(--ink); outline: none; font-family: inherit; transition: border-color .2s;
}
.fsearch input:focus { border-color: var(--gold); }

/* ---------- 列表卡片 ---------- */
.articles-wrap { padding: 42px 0 90px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.article-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 28px;
  display: block;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  overflow: hidden;
}
.article-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--gold-2), var(--gold), transparent); transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
.article-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(176, 141, 79, .4); }
.article-card:hover::before { transform: scaleX(1); }
.ac-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.chip { font-size: 11px; font-weight: 600; letter-spacing: .14em; padding: 3px 10px; border-radius: 3px; }
.chip.article { background: var(--red-soft); color: var(--red); }
.chip.qa { background: var(--gold-soft); color: var(--gold-3); }
.chip.note { background: rgba(36, 69, 92, .1); color: var(--navy-3); }
.ac-date { font-size: 12px; color: var(--ink-3); margin-left: auto; }
.ac-title { font-family: var(--serif); font-size: 18px; font-weight: 700; color: var(--navy); line-height: 1.5; margin-bottom: 10px; }
.ac-snippet { font-size: 13.8px; color: var(--ink-2); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ac-kw { margin-top: 14px; font-size: 12px; color: var(--gold-3); }
.ac-kw b { font-weight: 600; }
.empty-card { display: none; text-align: center; color: var(--ink-3); padding: 70px 0; font-size: 15px; grid-column: 1 / -1; }

/* ---------- 详情页 ---------- */
.article-main { padding: 120px 0 40px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-3); margin-bottom: 26px; flex-wrap: wrap; }
.breadcrumb a { color: var(--gold-3); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb i { font-style: normal; }
.article-paper {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: clamp(28px, 5vw, 56px) clamp(22px, 5vw, 60px);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.article-paper::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--gold-2), var(--gold)); }

.article-head { border-bottom: 1px dashed var(--line); padding-bottom: 26px; margin-bottom: 30px; }
.article-chipline { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.a-kw { font-size: 12.5px; color: var(--ink-2); }
.a-kw b { color: var(--gold-3); }
.article-head h1 { font-family: var(--serif); font-size: clamp(24px, 3.4vw, 34px); font-weight: 700; color: var(--navy); line-height: 1.45; letter-spacing: .02em; }
.article-meta { margin-top: 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.am-item { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--ink-2); }
.dot { width: 4px; height: 4px; border-radius: 50%; background: var(--gold); }

/* 正文 */
.article-body { font-size: 16px; line-height: 2.05; color: var(--ink); word-break: break-word; }
.article-body p { margin-bottom: 1.3em; text-align: justify; }
.article-q {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--navy);
  background: var(--gold-soft);
  border-left: 3px solid var(--gold);
  padding: 18px 24px;
  margin-bottom: 26px;
  border-radius: 0 8px 8px 0;
  position: relative;
}
.article-q::before { content: "问"; position: absolute; left: -14px; top: -14px; width: 30px; height: 30px; display: grid; place-items: center; background: linear-gradient(135deg, var(--red-2), var(--red)); color: #fff; font-family: var(--serif); font-size: 13px; font-weight: 700; border-radius: 6px; box-shadow: 0 6px 12px -4px rgba(168, 50, 50, .5); }

/* 相关文章 */
.related { margin-top: 40px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.related h2 { font-family: var(--serif); font-size: 17px; font-weight: 700; color: var(--navy); letter-spacing: .1em; margin-bottom: 18px; }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.r-item { display: flex; flex-direction: column; gap: 6px; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; transition: all .25s; }
.r-item:hover { border-color: var(--gold); transform: translateY(-3px); }
.r-item span { font-size: 11.5px; color: var(--gold-3); }
.r-item strong { font-family: var(--serif); font-size: 14px; color: var(--navy); line-height: 1.5; }

/* CTA 区块 */
.article-cta { margin-top: 34px; background: linear-gradient(140deg, var(--navy), var(--navy-2)); border-radius: 14px; padding: 40px; text-align: center; color: #dfe6ea; position: relative; overflow: hidden; }
.article-cta::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--line-dark); border-radius: 9px; pointer-events: none; }
.article-cta h3 { font-family: var(--serif); font-size: 22px; font-weight: 700; color: #f3ecdc; letter-spacing: .06em; }
.article-cta p { margin-top: 12px; font-size: 14.5px; color: rgba(223, 230, 234, .72); max-width: 620px; margin-left: auto; margin-right: auto; }
.ac-btns { margin-top: 24px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 30px; border-radius: 4px; font-weight: 600; font-size: 14.5px; letter-spacing: .1em; transition: transform .25s, box-shadow .25s; border: 1px solid transparent; }
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: linear-gradient(135deg, var(--gold-2), var(--gold) 55%, var(--gold-3)); color: #fff; box-shadow: 0 10px 26px -8px rgba(176, 141, 79, .55); }
.btn-ghost { border-color: var(--gold); color: var(--gold-2); }
.btn-ghost:hover { background: rgba(211, 182, 113, .1); }

/* 分页/更多 */
.cat-nav { margin-top: 32px; display: flex; justify-content: center; gap: 12px; }
.cat-nav a { background: var(--paper-2); border: 1px solid var(--line); border-radius: 8px; padding: 11px 26px; font-size: 13.5px; color: var(--navy); font-weight: 600; transition: .25s; }
.cat-nav a:hover { border-color: var(--gold); color: var(--gold-3); }

/* 页脚 */
.list-footer { background: #0c1a26; color: rgba(223, 230, 234, .5); padding: 30px 0; }
.list-footer .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12.5px; }
.list-footer .footer-beian { white-space: nowrap; }
.list-footer .footer-beian a { color: inherit; text-decoration: none; }
.list-footer .footer-beian a:hover { color: rgba(223, 230, 234, .85); }

/* 响应式 */
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .fsearch { width: 100%; margin-left: 0; }
  .fsearch input { width: 100%; }
  .related-grid { grid-template-columns: 1fr; }
  .topbar-nav a { display: none; }
  .topbar-nav a.nc { display: inline-flex; }
}
@media (max-width: 620px) {
  .container { padding: 0 16px; }
  .article-paper { padding: 24px 20px; }
}
/* ---------- GEO 增强块（核心结论 / 常见问题 / 专家署名）---------- */
.geo-tldr { background: var(--gold-soft); border: 1px solid var(--line-dark); border-left: 3px solid var(--gold);
  border-radius: 0 10px 10px 0; padding: 20px 26px; margin: 0 0 30px; }
.geo-tldr-head { font-family: var(--serif); font-weight: 700; color: var(--navy); font-size: 16px;
  margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.geo-tldr-head::before { content: "\25C6"; color: var(--gold); font-size: 12px; }
.geo-tldr ul { margin: 0; padding-left: 20px; }
.geo-tldr li { font-size: 15px; line-height: 1.9; color: var(--ink); margin: 6px 0; }
.geo-faq { margin-top: 40px; padding-top: 30px; border-top: 1px dashed var(--line); }
.geo-faq h2 { font-family: var(--serif); font-size: 19px; color: var(--navy); margin-bottom: 18px; }
.geo-faq-item { background: var(--paper-3); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px 20px; margin-bottom: 12px; }
.geo-faq-q { font-weight: 700; color: var(--navy); font-size: 15px; margin-bottom: 8px; }
.geo-faq-a { font-size: 14.5px; line-height: 1.9; color: var(--ink-2); }
.geo-faq-a p { margin: 0; }