/* 小裂变GEO字号层级 */
:root {
  --color-bg-page: #f5f6f8;
  --color-bg-white: #ffffff;
  --color-bg-alt: #f0f2f5;
  --color-bg-light: #eef2f9;
  --color-bg-cta: #e2eaf8;
  --color-primary: #175CEB;
  --color-primary-hover: #1349c4;
  --color-text: #1a1a1a;
  --color-text-muted: #555;
  --color-border: #e0e4e8;
  --font-sans: "PingFang SC", "Microsoft YaHei", "等线", -apple-system, sans-serif;
  --max-width: 1200px;
  --max-width-narrow: 720px;
  --spacing: 24px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  /* 字号： */
  --text-base: 16px;
  --text-h1: 72px;   /* 首屏主标题 */
  --text-h2: 36px;   /* 区块标题 */
  --text-h3: 24px;   /* 卡片/小标题 */
  --text-lead: 18px; /* 引导说明 */
  --text-body: 16px; /* 正文 */
  --text-card: 15px; /* 卡片正文 */
  --text-sm: 14px;  /* 辅助信息 */
  --text-xs: 13px;  /* 标签/小字 */
}

* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-sans); font-size: var(--text-base); line-height: 1.6; color: var(--color-text); background: var(--color-bg-page); }
.container { margin: 0 auto; padding: 0 var(--spacing); }
.container-wide { max-width: var(--max-width); }

/* ========== PDF 模块背景（浅色交替） ========== */
.module { padding: 48px 0; }
.module-bg-white { background: var(--color-bg-white); }
.module-bg-alt { background: var(--color-bg-alt); }
.module-bg-light { background: var(--color-bg-light); }
.module-bg-cta { background: var(--color-bg-cta); }
/* 相邻模块背景区分：白 / 浅灰 交替，避免连续同色 */

/* ========== 配图占位（与PDF对应） ========== */
.figure-placeholder {
  background: rgba(23, 92, 235, 0.06);
  border: 1px dashed rgba(23, 92, 235, 0.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}
.figure-label { font-size: var(--text-sm); text-align: center; line-height: 1.4; }
.figure-icon { width: 64px; height: 64px; margin: 0 auto; }
.figure-tall { min-height: 240px; }
.figure-sm { width: 40px; height: 40px; flex-shrink: 0; }
.figure-qr { min-height: 160px; min-width: 160px; }
.figure-qr .figure-label { font-size: var(--text-xs); }

/* ========== Header ========== */
.site-header {
  background: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--spacing); }
.logo { display: flex; align-items: center; text-decoration: none; }
.logo-img { display: block; height: 36px; width: auto; max-width: 180px; object-fit: contain; }
.nav-main ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 20px; }
.nav-main a { color: var(--color-text); text-decoration: none; font-size: var(--text-sm); }
.nav-main a:hover { color: var(--color-primary); }

/* ========== Banner 第一屏风格（浅色渐变 + 药丸芯片 + 蓝紫渐变字） ========== */
.module-banner {
  min-height: 550px;
  display: flex;
  align-items: center;
  padding: 32px 0;
  position: relative;
  background: #f8fafc linear-gradient(135deg, #f0f4ff 0%, #f8fafc 45%, #eef2ff 100%) right bottom / cover no-repeat;
}
.module-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 30% 40%, rgba(255, 255, 255, 0.4) 0%, transparent 60%);
  pointer-events: none;
}
.module-banner .container { display: flex; align-items: center; position: relative; z-index: 1; }
.banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  width: 100%;
}
.banner-inner h1 { margin: 0 0 24px; font-size: var(--text-h1); font-weight: 700; color: #1a1a1a; line-height: 1.3; white-space: nowrap; text-align: center; }
/* H1「推荐度」：皇家蓝 → 亮紫/品红 渐变 */
.h1-gradient {
  background: linear-gradient(90deg, #2563eb 0%, #7c3aed 50%, #a855f7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.banner-inner h2.banner-tagline { margin: 0 0 40px; font-size: var(--text-h3); font-weight: 600; text-align: center; color: #555; white-space: nowrap; }
/* H2「GEO」：薰衣草紫 → 紫色 渐变 */
.h2-gradient {
  background: linear-gradient(90deg, #a78bfa 0%, #8b5cf6 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.banner-platforms {
  list-style: none;
  margin: 0 auto 64px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 12px;
}
.banner-platforms li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 72px;
}
/* 药丸形芯片：白底、细灰边、轻阴影，间距参考第一屏 */
.banner-platforms-left-img {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 12px;
}
.banner-platforms-single-row {
  flex-wrap: nowrap;
  justify-content: center;
}
.banner-platforms-left-img li {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  min-width: auto;
  min-height: 48px;
  padding: 0 16px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}
.banner-platforms-left-img .platform-logo {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
}
.banner-platforms-left-img .platform-name {
  white-space: nowrap;
  line-height: 1.3;
  font-size: var(--text-sm);
  color: #555;
}
.platform-logo {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  object-fit: contain;
  display: block;
}
.platform-name { font-size: var(--text-sm); color: #555; }
.banner-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover { background: rgba(23, 92, 235, 0.08); }
.btn-video::before { content: "▶ "; font-size: 14px; }

/* 保留旧 Hero 类供其他处使用 */
.layout-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-content h1 { margin: 0 0 8px; font-size: 32px; font-weight: 700; color: var(--color-text); }
.hero-tagline { margin: 0 0 16px; font-size: 18px; color: var(--color-primary); font-weight: 600; }
.hero-desc { margin: 0 0 24px; font-size: 15px; color: var(--color-text-muted); line-height: 1.65; }
.hero-figure { min-height: 280px; }

/* ========== 两列 / 三列 布局（PDF 常用） ========== */
.layout-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.layout-split .col-content { align-self: center; }
.col-figure { min-height: 200px; }
.layout-three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

/* ========== 第二屏：流量演变（玻璃拟态三卡 + 底部渐变进度条） ========== */
.module-evolution {
  background: linear-gradient(180deg, #fafbff 0%, #f5f7ff 100%);
}
.evolution-title {
  margin: 0;
  font-size: var(--text-h2);
  font-weight: 700;
  color: #1a1a1a;
  text-align: center;
}
.evolution-subtitle {
  margin: 0 0 32px;
  font-size: var(--text-h2);
  font-weight: 600;
  color: #1a1a1a;
  text-align: center;
}
.evolution-gradient {
  background: linear-gradient(90deg, #2563eb 0%, #7c3aed 50%, #ec4899 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.evolution-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.evolution-card {
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
}
.evolution-card-bar {
  padding: 14px 20px;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
}
.evolution-card-bar-blue { background: linear-gradient(90deg, #2563eb, #3b82f6); }
.evolution-card-bar-purple { background: linear-gradient(90deg, #7c3aed, #8b5cf6); }
.evolution-card-bar-pink { background: linear-gradient(90deg, #db2777, #ec4899); }
.evolution-card-body {
  padding: 20px;
  flex: 1;
  font-size: var(--text-card);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.evolution-card-body p { margin: 0 0 10px; }
.evolution-card-body p:last-child { margin-bottom: 0; }
.evolution-card-body strong { color: #333; }
/* 底部进度条：蓝→紫→粉 渐变线 + 三圆点与卡片对齐 + 箭头 */
.evolution-timeline {
  display: flex;
  align-items: center;
  margin-top: 40px;
  gap: 0;
}
.evolution-timeline-track {
  flex: 1;
  min-height: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  justify-items: center;
  position: relative;
}
.evolution-timeline-track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  margin-top: -2px;
  height: 4px;
  background: linear-gradient(90deg, #2563eb 0%, #7c3aed 50%, #ec4899 100%);
  border-radius: 2px;
  z-index: 0;
}
.evolution-timeline-segment {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
}
.evolution-timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(124, 58, 237, 0.9);
  flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.95);
}
.evolution-timeline-arrow {
  flex-shrink: 0;
  margin-left: 16px;
  font-size: 24px;
  font-weight: 700;
  color: #ec4899;
  line-height: 1;
}
.evolution-lead { margin-top: 32px; }

/* ========== 区块标题与说明（参考微盟层级） ========== */
.section-title { margin: 0; font-size: var(--text-h2); font-weight: 600; color: var(--color-text); text-align: center; }
.section-lead { margin: 0 0 24px; font-size: var(--text-lead); color: var(--color-text-muted); }
.section-lead.center { text-align: center; margin-left: auto; margin-right: auto; max-width: 640px; }
.evolution-col {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.evolution-col h3 { margin: 0 0 8px; font-size: var(--text-h3); color: var(--color-text); }
.evolution-col p { margin: 0 0 12px; font-size: var(--text-card); color: var(--color-text-muted); }
.evolution-col ul { margin: 0; padding: 0; list-style: none; font-size: var(--text-sm); color: var(--color-text-muted); }
.evolution-col li { margin: 4px 0; }
.evolution-col-active { border-color: var(--color-primary); background: rgba(23, 92, 235, 0.04); }
.evolution-col-active h3 { color: var(--color-primary); }

/* ========== PDF p3-p4 用户在哪里 两列 ========== */
.lead { margin: 0 0 12px; font-size: var(--text-lead); }
.two-tags { list-style: none; margin: 0; padding: 0; display: flex; gap: 12px; flex-wrap: wrap; }
.tag { display: inline-block; padding: 6px 16px; border-radius: 999px; font-size: var(--text-card); background: var(--color-bg-white); border: 1px solid var(--color-border); color: var(--color-text-muted); }
.tag-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ========== PDF p6 示例 两块 ========== */
.example-two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.example-block { padding: 16px; background: var(--color-bg-alt); border-radius: var(--radius); border-left: 4px solid var(--color-primary); font-size: var(--text-card); color: var(--color-text-muted); }
.example-label { display: inline-block; margin-bottom: 6px; font-size: var(--text-xs); font-weight: 600; color: var(--color-primary); }
.example-block strong { color: var(--color-text); }

/* ========== PDF p11-12 核心价值 三列 ========== */
.value-cols { align-items: stretch; }
.value-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
}
.value-card .figure-icon { margin: 0 auto 12px; }
.value-card h3 { margin: 0 0 8px; font-size: var(--text-h3); color: var(--color-primary); }
.value-card p { margin: 0; font-size: var(--text-card); color: var(--color-text-muted); line-height: 1.5; }

/* ========== PDF p14 怎么做 横向流程 ========== */
.flow-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 4px;
  margin-top: 24px;
}
.flow-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.flow-item .figure-placeholder { margin: 0; }
.flow-arrow { color: var(--color-primary); font-weight: 600; }
.flow-item-end { color: var(--color-primary); font-weight: 500; }

/* ========== 表格框架区块（表达方式 / GEO优化服务 / 价值） ========== */
.block-subtitle {
  margin: 40px 0 16px;
  font-size: var(--text-h3);
  font-weight: 600;
  color: var(--color-primary);
  border-left: 4px solid var(--color-primary);
  padding-left: 12px;
}
.block-subtitle:first-of-type { margin-top: 16px; }
.framework-grid { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 16px; }
.framework-grid-2 { grid-template-columns: repeat(2, 1fr); }
.framework-grid-3 { grid-template-columns: repeat(3, 1fr); }
.framework-grid-4 { grid-template-columns: repeat(4, 1fr); }
.framework-item {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.module-bg-alt .framework-item { background: #fff; }
.framework-item strong { display: block; margin-bottom: 8px; font-size: var(--text-body); color: var(--color-primary); }
.framework-item p { margin: 0; font-size: var(--text-card); line-height: 1.55; color: var(--color-text-muted); }
.value-cols .framework-item { padding: 24px; }
.value-item p { font-size: var(--text-card); }

/* ========== 解决方案 两列大卡+配图 ========== */
.solution-cards { align-items: stretch; }
.solution-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.solution-card-figure { min-height: 160px; flex-shrink: 0; }
.solution-card h3 { margin: 16px 20px 8px; font-size: var(--text-h3); color: var(--color-primary); }
.solution-card p { margin: 0 20px 16px; font-size: var(--text-card); color: var(--color-text-muted); line-height: 1.55; flex: 1; }
.solution-card .card-link { margin: 0 20px 20px; }

/* ========== 核心能力 卡片+顶部配图 ========== */
.card-grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 24px; }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card-with-figure { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.card-figure { min-height: 100px; flex-shrink: 0; }
.card-with-figure .card-title { margin: 16px 16px 8px; font-size: var(--text-body); color: var(--color-primary); }
.card-with-figure .card-desc { margin: 0 16px 16px; font-size: var(--text-card); color: var(--color-text-muted); }
.card-with-figure .card-link { margin: 0 16px 16px; font-size: var(--text-sm); color: var(--color-primary); text-decoration: none; font-weight: 500; }
.card-with-figure .card-link:hover { text-decoration: underline; }

/* ========== 服务流程 每步前配图 ========== */
.process-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  max-width: 720px;
  margin: 0 auto;
}
.process-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 12px;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  counter-increment: step;
  font-size: var(--text-body);
  color: var(--color-text);
}
.process-figure { flex-shrink: 0; }
.process-list li strong { margin-right: 4px; }

/* ========== 按钮 ========== */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: var(--text-body);
  text-decoration: none;
  transition: background 0.2s;
}
.btn-primary { background: var(--color-primary); color: #fff; border: none; }
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; }
.btn-lg { padding: 12px 32px; font-size: var(--text-lead); }

/* ========== CTA 结尾（PDF p50）左文右码 ========== */
.module-cta { padding: 48px 0; }
.layout-cta { align-items: center; }
.cta-content h2 { margin: 0 0 8px; font-size: var(--text-h2); font-weight: 600; color: var(--color-text); }
.cta-desc { margin: 0 0 16px; font-size: var(--text-lead); color: var(--color-text-muted); }
.cta-figure { min-width: 180px; }

/* ========== Footer ========== */
.site-footer {
  background: #2d3238;
  color: #b0b4b8;
  padding: 40px 0 32px;
  font-size: var(--text-card);
}
.footer-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 32px; margin-bottom: 32px; }
.footer-brand .footer-logo { font-size: var(--text-lead); font-weight: 600; color: #e0e2e5; margin: 0 0 4px; }
.footer-brand .footer-logo strong { color: #6b9cf6; }
.footer-brand p { margin: 4px 0; }
.footer-links p, .footer-contact p { margin: 4px 0; }
.footer-links strong, .footer-contact strong { color: #d0d4d8; }
.site-footer a { color: #b0b4b8; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-copy { margin: 0; padding-top: 16px; border-top: 1px solid #3d4248; font-size: var(--text-sm); color: #888; text-align: center; }

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .layout-three-col { grid-template-columns: 1fr; }
  .evolution-cards { grid-template-columns: 1fr; }
  .layout-two-col { grid-template-columns: 1fr; }
  .banner-inner h1 { font-size: 28px; }
  .banner-tagline { font-size: var(--text-body); }
  .banner-actions { flex-direction: column; }
  .banner-actions .btn { width: 100%; max-width: 240px; text-align: center; }
  .layout-hero { grid-template-columns: 1fr; }
  .hero-figure { min-height: 200px; order: -1; }
  .col-figure { min-height: 180px; }
  .flow-row { justify-content: flex-start; }
}
@media (max-width: 900px) {
  .framework-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .banner-platforms { gap: 12px 12px; }
  .banner-platforms li { min-width: 64px; }
  .banner-platforms-single-row { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  .banner-platforms-left-img li { min-height: 52px; padding: 0 10px; flex-shrink: 0; }
  .banner-platforms-left-img .platform-logo { width: 36px; height: 36px; }
  .platform-logo { width: 42px; height: 42px; }
}
@media (max-width: 640px) {
  .banner-inner h1 { font-size: 24px; }
  .evolution-title, .evolution-subtitle { font-size: 20px; }
  .evolution-col { text-align: left; }
  .evolution-col .figure-placeholder { margin: 0 0 8px; }
  .example-two { grid-template-columns: 1fr; }
  .solution-cards { grid-template-columns: 1fr; }
  .card-grid-4 { grid-template-columns: 1fr; }
  .framework-grid-2, .framework-grid-4 { grid-template-columns: 1fr; }
  .layout-cta { grid-template-columns: 1fr; }
  .cta-figure { min-width: 140px; margin: 0 auto; }
  .nav-main ul { justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ========== 视频小窗口 ========== */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.video-modal[hidden] { display: none; }
.video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  cursor: pointer;
}
.video-modal-window {
  position: relative;
  width: 100%;
  max-width: 720px;
  background: #1a1a1a;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.video-modal-close {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.video-modal-close:hover { background: rgba(0, 0, 0, 0.8); }
.video-modal-window video {
  display: block;
  width: 100%;
  max-height: 600px;
  vertical-align: middle;
}
.btn-video { cursor: pointer; font-family: inherit; }

/* ========== GEO 资讯（与首页同源：framework-item 卡片 + module 分区） ========== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.news-breadcrumb {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 16px;
}
.news-breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}
.news-breadcrumb a:hover {
  text-decoration: underline;
}
.news-breadcrumb-sep {
  margin: 0 8px;
  opacity: 0.5;
}
/* 资讯列表：沿用首页 framework-item 视觉，整块可点 */
.news-list-grid {
  margin-top: 8px;
  margin-bottom: 0;
}
.news-item-card {
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.news-item-card:hover {
  border-color: rgba(23, 92, 235, 0.35);
  box-shadow: 0 8px 28px rgba(23, 92, 235, 0.1);
}
.news-item-link {
  display: flex;
  flex-direction: column;
  flex: 1;
  height: 100%;
  padding: 20px;
  text-decoration: none;
  color: inherit;
}
.news-item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 10px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.news-item-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  background: rgba(23, 92, 235, 0.1);
  color: var(--color-primary);
}
.news-item-link time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.news-item-link p {
  margin: 0 0 12px;
  flex: 1;
}
.news-item-link .card-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}
.news-item-link:hover .card-link {
  text-decoration: underline;
}
.news-preview-more-wrap {
  text-align: center;
  margin: 32px 0 0;
}
.news-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 24px;
}

/* 资讯正文页 */
.article-main {
  padding-bottom: 48px;
}
.article-container {
  max-width: var(--max-width-narrow);
  padding-top: 24px;
}
.article-sheet {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 32px 32px;
  box-shadow: var(--shadow);
}
.article-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}
.article-meta {
  margin: 0 0 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.article-tag {
  margin-bottom: 0;
}
.article-h1 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.5vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
}
.article-excerpt {
  margin: 0;
  font-size: var(--text-lead);
  color: var(--color-text-muted);
  line-height: 1.55;
}
.article-prose {
  font-size: var(--text-body);
  line-height: 1.75;
  color: var(--color-text);
}
.article-prose p {
  margin: 0 0 16px;
}
.article-prose ul,
.article-prose ol {
  margin: 0 0 16px;
  padding-left: 1.35em;
}
.article-prose li {
  margin: 6px 0;
}
.article-prose strong {
  color: var(--color-text);
}
.article-footer {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.article-not-found {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}
.article-not-found a {
  color: var(--color-primary);
}

@media (max-width: 900px) {
  .framework-grid-3 {
    grid-template-columns: 1fr;
  }
}