/* ===== Blog 文章页样式（遵循官网设计语言） ===== */
:root {
  --primary: #1A6EFF;
  --primary-dark: #0F5FD9;
  --ink: #0F1B33;
  --muted: #5B6B85;
  --soft: #F5F9FF;
  --line: #E3ECF9;
  --amber: #F59E0B;
}

/* 简化导航 */
.blog-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1rpx solid var(--line);
  border-bottom: 1px solid var(--line);
}
.blog-nav-inner {
  max-width: 880px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.blog-nav-brand { font-weight: 800; font-size: 18px; color: var(--ink); text-decoration: none; display:flex; align-items:center; gap:8px; }
.blog-nav-brand .dot { width:10px; height:10px; border-radius:3px; background: linear-gradient(135deg,#1A6EFF,#6EE7FF); display:inline-block; }
.blog-nav-links { display:flex; gap:14px; }
.blog-nav-links a { color: var(--muted); text-decoration: none; font-size:14px; font-weight:500; }
.blog-nav-links a:hover { color: var(--primary); }

/* 文章 Hero */
.article-hero { background: linear-gradient(135deg, #0E4FC4 0%, #1A6EFF 55%, #57B6FF 100%); color:#fff; }
.article-hero-inner { max-width: 760px; margin:0 auto; padding: 56px 20px 44px; }
.article-hero .tag-row { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px; }
.article-hero .tag-chip {
  font-size:12px; font-weight:600; padding:4px 12px; border-radius:999px;
  background: rgba(255,255,255,.18); border:1px solid rgba(255,255,255,.35); color:#fff;
}
.article-hero h1 { font-size: clamp(24px, 4vw, 34px); line-height:1.35; font-weight:800; margin:0 0 14px; letter-spacing:.5px; }
.article-hero .hero-sub { font-size:15px; line-height:1.7; color: rgba(255,255,255,.88); margin:0; }

/* 复制按钮条 */
.copy-bar {
  position: sticky; top: 61px; z-index: 40;
  background: rgba(245,249,255,.95); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.copy-bar-inner { max-width:760px; margin:0 auto; padding:10px 20px; display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; }
.copy-tip { font-size:12.5px; color: var(--muted); }
.copy-btn {
  border:none; cursor:pointer; font-family:inherit;
  background: linear-gradient(135deg,#1A6EFF,#4D9AFF); color:#fff;
  font-size:14px; font-weight:700; padding:9px 22px; border-radius:999px;
  box-shadow: 0 4px 14px rgba(26,110,255,.35);
  transition: transform .15s ease, box-shadow .15s ease;
}
.copy-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(26,110,255,.45); }
.copy-btn:active { transform: scale(.96); }
.copy-btn.copied { background: linear-gradient(135deg,#10B981,#34D399); box-shadow: 0 4px 14px rgba(16,185,129,.35); }

/* 正文 */
.article-body { max-width: 760px; margin: 0 auto; padding: 36px 20px 48px; }

/* 文章场景插画 */
.article-figure {
  margin: 0 0 30px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 14px 36px rgba(15,35,80,.14);
  border: 1px solid var(--line);
}
.article-figure img { display: block; width: 100%; height: auto; }
.article-figure figcaption {
  font-size: 12.5px; color: var(--muted); text-align: center; padding: 10px 14px 12px; background:#fff;
}
.article-body h2 {
  font-size: 21px; font-weight: 800; color: var(--ink);
  margin: 44px 0 16px; padding-left: 12px;
  border-left: 5px solid var(--primary); line-height: 1.4;
}
.article-body h2:first-child { margin-top: 8px; }
.article-body h3 { font-size: 17.5px; font-weight: 700; color: var(--ink); margin: 30px 0 12px; line-height:1.4; }
.article-body p { font-size: 15.5px; line-height: 1.95; color: #2A3550; margin: 0 0 18px; }
.article-body strong { color: var(--ink); }
.article-body ul { margin: 0 0 18px; padding-left: 6px; list-style: none; }
.article-body li { font-size: 15.5px; line-height: 1.9; color: #2A3550; margin-bottom: 8px; padding-left: 22px; position: relative; }
.article-body li::before { content:""; position:absolute; left:4px; top: 13px; width:7px; height:7px; border-radius:2px; background: linear-gradient(135deg,#1A6EFF,#6EE7FF); }
.article-body blockquote {
  margin: 22px 0; padding: 16px 20px; border-radius: 14px;
  background: var(--soft); border: 1px solid var(--line);
  color: #2A3550; font-size: 15px; line-height: 1.85;
}
.article-body blockquote p { margin: 0 0 10px; font-size: 15px; }
.article-body blockquote p:last-child { margin: 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 14px; background:#fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 10px rgba(15,27,51,.06); }
.article-body th { background: #EEF5FF; color: var(--ink); font-weight: 700; padding: 11px 14px; text-align: left; }
.article-body td { padding: 11px 14px; border-top: 1px solid var(--line); color: #2A3550; line-height: 1.6; }
.article-body tr:nth-child(even) td { background: #FAFCFF; }
.article-body .divider { height:1px; background: var(--line); margin: 40px 0; border:none; }

/* 配图占位提示 */
.fig-note {
  display:flex; gap:10px; align-items:flex-start;
  margin: 20px 0; padding: 14px 16px; border-radius: 12px;
  background: #FFFBEB; border: 1px dashed #FCD34D; font-size: 13px; color:#92400E; line-height:1.7;
}
.fig-note::before { content:"🖼"; flex-shrink:0; }

/* 二维码 CTA */
.qr-cta {
  max-width: 760px; margin: 12px auto 0; padding: 0 20px 56px;
}
.qr-card {
  background: linear-gradient(135deg, #0E4FC4 0%, #1A6EFF 60%, #57B6FF 100%);
  border-radius: 24px; padding: 36px 28px; text-align: center; color: #fff;
  box-shadow: 0 12px 32px rgba(26,110,255,.30);
}
.qr-card h3 { font-size: 20px; font-weight: 800; margin: 0 0 8px; }
.qr-card p { font-size: 14px; margin: 0 0 22px; color: rgba(255,255,255,.9); }
.qr-card img { width: 170px; height: 170px; border-radius: 16px; background: #fff; padding: 8px; display:block; margin: 0 auto; }
.qr-card .qr-hint { font-size: 12.5px; margin-top: 12px; color: rgba(255,255,255,.85); }

/* 上下篇导航 */
.pn-nav { max-width: 760px; margin: 0 auto; padding: 0 20px 48px; display:grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pn-card { background:#fff; border:1px solid var(--line); border-radius: 16px; padding: 16px 18px; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
.pn-card:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(15,27,51,.08); }
.pn-card .pn-label { font-size: 12px; color: var(--muted); font-weight: 600; margin-bottom: 6px; display:block; }
.pn-card.next { text-align: right; }
.pn-card .pn-title { font-size: 14.5px; font-weight: 700; color: var(--ink); line-height: 1.5; }

/* 列表页 */
.blog-list-hero { background: linear-gradient(135deg, #0E4FC4 0%, #1A6EFF 55%, #57B6FF 100%); color:#fff; padding: 60px 20px 52px; text-align:center; }
.blog-list-hero h1 { font-size: clamp(26px, 4.5vw, 38px); font-weight: 800; margin: 0 0 12px; }
.blog-list-hero p { font-size: 15px; color: rgba(255,255,255,.88); margin: 0; line-height:1.7; }
.blog-grid { max-width: 980px; margin: -28px auto 0; padding: 0 20px 60px; display:grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.blog-card {
  background:#fff; border:1px solid var(--line); border-radius: 18px; padding: 22px;
  text-decoration:none; display:flex; flex-direction:column; gap:10px;
  transition: transform .15s ease, box-shadow .15s ease; position:relative; overflow:hidden;
}
.blog-card:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(15,27,51,.10); }
.blog-card .bc-num { position:absolute; right:16px; top:10px; font-size: 40px; font-weight: 800; color: #EFF5FF; }
.blog-card .bc-chip { display:inline-block; align-self:flex-start; font-size: 11.5px; font-weight: 700; color: var(--primary); background: #EEF5FF; border-radius: 999px; padding: 3px 10px; }
.blog-card .bc-chip.ch-earn { color:#B45309; background:#FEF3C7; }
.blog-card h2 { font-size: 16.5px; font-weight: 800; color: var(--ink); margin: 0; line-height: 1.5; position:relative; z-index:1; }
.blog-card p { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.7; }
.blog-card .bc-foot { margin-top: auto; font-size: 12.5px; color: var(--primary); font-weight: 600; }

@media (max-width: 560px) {
  .article-hero-inner { padding: 44px 18px 36px; }
  .copy-bar-inner { padding: 9px 16px; }
  .copy-tip { display: none; }
  .article-body { padding: 28px 18px 40px; }
  .pn-nav { grid-template-columns: 1fr; }
  .qr-card { padding: 30px 20px; }
}