/* ═══════════════════════════════════════════════════════════════
   BioReport Platform — 报告样式体系 v2.0
   千问风格报告 + 营销级首页/品牌组件
   ═══════════════════════════════════════════════════════════════ */

:root {
  --ink:#1c2733; --sub:#5a6b7d; --muted:#8a98a8; --line:#e3e8ee; --bg:#f7f9fb; --white:#ffffff;
  --brand:#0f4c81; --brand-dark:#0a3558; --brand-light:#eaf2fa; --brand-border:#d5e3f2;
  --accent:#c9822b; --accent-light:#fdf6ec; --accent-border:#e8c98b;
  --warn:#a03d2e; --warn-light:#fdefec;
  --success:#2d7d46; --success-light:#edf7f0;
  --font:"Microsoft YaHei","PingFang SC","Segoe UI",system-ui,sans-serif;
  --font-mono:"Cascadia Code","Fira Code","Consolas",monospace;
  --radius:6px; --shadow:0 2px 12px rgba(0,0,0,.06); --shadow-lg:0 8px 32px rgba(0,0,0,.10);
}

/* ── 暗色主题 ── */
[data-theme="dark"] {
  --ink:#e4e8ee; --sub:#9aa7b8; --line:#2d3540; --bg:#151a22; --white:#1c2430;
  --brand:#5b9bd5; --brand-light:#1a2a3d; --brand-border:#2a4060;
  --accent:#e0a040; --accent-light:#2a2015;
}

*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;}

/* ═══════════ 导航栏 ═══════════ */
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;backdrop-filter:blur(8px);}
.header-inner{max-width:1100px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.site-logo{font-size:22px;font-weight:800;text-decoration:none;border:none;display:flex;align-items:center;gap:8px;color:var(--brand);}
.site-logo .logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--brand),var(--accent));border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:700;}
.site-logo span{color:var(--accent);}
.site-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.site-nav a{font-size:14px;color:var(--sub);border:none;padding:6px 14px;border-radius:6px;transition:all .15s;text-decoration:none;}
.site-nav a:hover{color:var(--brand);background:var(--brand-light);}
.site-nav a.active{color:var(--brand);background:var(--brand-light);font-weight:600;}

/* ═══════════ Hero 区域 ═══════════ */
.hero{background:linear-gradient(170deg,var(--white) 0%,var(--brand-light) 50%,#e8f0f8 100%);padding:56px 24px 48px;text-align:center;border-bottom:1px solid var(--line);}
.hero-inner{max-width:800px;margin:0 auto;}
.hero h1{font-size:34px;font-weight:800;color:var(--brand);margin:0 0 12px;line-height:1.3;letter-spacing:-.5px;}
.hero p{font-size:16px;color:var(--sub);margin:0 0 28px;line-height:1.7;max-width:600px;margin-left:auto;margin-right:auto;}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.btn{padding:10px 24px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;font-family:var(--font);text-decoration:none;display:inline-block;transition:all .15s;border:none;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow);}
.btn-outline{background:var(--white);color:var(--brand);border:2px solid var(--brand);}
.btn-outline:hover{background:var(--brand-light);}

/* ═══════════ 统计条 ═══════════ */
.stats-strip{display:flex;justify-content:center;gap:40px;padding:28px 24px;background:var(--white);border-bottom:1px solid var(--line);flex-wrap:wrap;}
.stat-block{text-align:center;}
.stat-block .num{font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;}
.stat-block .lbl{font-size:13px;color:var(--muted);margin-top:2px;}

/* ═══════════ 内容区 ═══════════ */
.section{padding:40px 24px;}
.section-inner{max-width:1100px;margin:0 auto;}
.section-title{font-size:22px;font-weight:700;color:var(--ink);margin:0 0 6px;}
.section-sub{font-size:14px;color:var(--muted);margin:0 0 24px;}

/* ═══════════ 报告卡片网格 ═══════════ */
.report-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:20px;}
.report-card{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:all .2s;display:flex;flex-direction:column;}
.report-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);}
.report-card .rc-body{padding:20px 22px;flex:1;display:flex;flex-direction:column;}
.report-card .rc-cat{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--accent);margin-bottom:8px;}
.report-card .rc-title{font-size:17px;font-weight:700;color:var(--ink);margin:0 0 8px;line-height:1.4;}
.report-card .rc-title a{color:inherit;border:none;text-decoration:none;}
.report-card .rc-title a:hover{color:var(--brand);}
.report-card .rc-desc{font-size:13.5px;color:var(--sub);margin:0 0 14px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;line-height:1.6;}
.report-card .rc-meta{font-size:12px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.report-card .rc-meta span{display:flex;align-items:center;gap:4px;}
.report-card .rc-footer{padding:12px 22px;border-top:1px solid var(--line);display:flex;gap:8px;flex-wrap:wrap;}
.report-card .rc-footer span{font-size:11px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:2px 10px;color:var(--sub);}

/* 特征报告 */
.report-card.featured{border-left:4px solid var(--accent);}
.report-card.featured .rc-cat::after{content:" ★ 精选";color:var(--accent);}

/* ═══════════ 订阅 CTA ═══════════ */
.cta-box{background:linear-gradient(135deg,var(--brand),var(--brand-dark));border-radius:16px;padding:36px;text-align:center;color:#fff;margin:20px 0;}
.cta-box h3{font-size:22px;margin:0 0 8px;color:#fff;}
.cta-box p{color:rgba(255,255,255,.8);margin:0 0 20px;font-size:14px;}
.cta-form{display:flex;gap:10px;max-width:440px;margin:0 auto;}
.cta-form input{flex:1;padding:10px 16px;border-radius:8px;border:none;font-size:14px;font-family:var(--font);outline:none;}
.cta-form button{padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;font-family:var(--font);white-space:nowrap;}
.cta-form button:hover{opacity:.9;}

/* ═══════════ 页脚 ═══════════ */
.site-footer{background:var(--white);border-top:1px solid var(--line);padding:32px 24px 24px;color:var(--sub);font-size:13px;}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;}
.footer-col h4{font-size:14px;color:var(--ink);margin:0 0 10px;}
.footer-col a{display:block;color:var(--sub);text-decoration:none;border:none;padding:3px 0;font-size:13px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);text-align:center;font-size:12px;color:var(--muted);}

/* ═══════════ 关于页 ═══════════ */
.about-hero{background:var(--white);padding:48px 24px;text-align:center;border-bottom:1px solid var(--line);}
.about-hero h2{font-size:28px;color:var(--brand);margin:0 0 12px;}
.about-hero p{max-width:600px;margin:0 auto;color:var(--sub);font-size:15px;line-height:1.8;}
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin:32px 0;}
.about-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:28px 24px;text-align:center;}
.about-card .ac-icon{font-size:36px;margin-bottom:12px;}
.about-card h4{font-size:16px;color:var(--ink);margin:0 0 8px;}
.about-card p{font-size:13.5px;color:var(--sub);margin:0;line-height:1.7;}

/* ═══════════ 筛选/搜索 ═══════════ */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;align-items:center;}
.filter-bar .filter-label{font-size:13px;color:var(--sub);font-weight:600;margin-right:4px;}
.filter-bar a{font-size:13px;padding:5px 14px;border-radius:16px;border:1px solid var(--line);color:var(--sub);background:var(--white);transition:all .15s;text-decoration:none;}
.filter-bar a:hover,.filter-bar a.active{background:var(--brand);color:#fff;border-color:var(--brand);}
.search-box{display:flex;gap:8px;margin-bottom:16px;}
.search-box input{flex:1;padding:10px 16px;border:1px solid var(--line);border-radius:20px;font-size:14px;font-family:var(--font);outline:none;transition:border-color .15s;}
.search-box input:focus{border-color:var(--brand);}
.search-box button{padding:10px 20px;background:var(--brand);color:#fff;border:none;border-radius:20px;font-size:14px;cursor:pointer;font-family:var(--font);}

/* ═══════════ 面包屑 ═══════════ */
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:8px;}
.breadcrumb a{color:var(--muted);border:none;text-decoration:none;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span{margin:0 6px;}

/* ═══════════ 报告详情容器 ═══════════ */
.container{max-width:1100px;margin:0 auto;padding:24px 28px 48px;}
.report-html-wrap .wrap{max-width:100% !important;padding:20px 0 !important;}

/* ═══════════ 空状态 ═══════════ */
.empty-state{text-align:center;padding:60px 20px;color:var(--sub);}
.empty-state .empty-icon{font-size:48px;margin-bottom:12px;}

/* ═══════════ 响应式 ═══════════ */
@media (max-width:768px){
  .hero h1{font-size:24px;}
  .hero{padding:36px 16px 32px;}
  .stats-strip{gap:24px;}
  .stat-block .num{font-size:22px;}
  .report-grid{grid-template-columns:1fr;}
  .footer-inner{flex-direction:column;}
}

/* ═══════════ 打印 ═══════════ */
@media print{
  .site-header,.site-footer,.hero,.stats-strip,.cta-box,.breadcrumb{display:none;}
  body{background:#fff;}
}

/* ═══════════ 报告原有样式(千问办公兼容) ═══════════ */
.wrap{max-width:960px;margin:0 auto;padding:32px 28px 64px;background:#fff;}
h1{font-size:27px;margin:0 0 10px;color:var(--brand);}
h2{font-size:20px;color:var(--brand);border-left:5px solid var(--brand);padding-left:10px;margin:44px 0 14px;}
h3{font-size:16px;margin:26px 0 10px;color:#143a5c;}
p{margin:10px 0;text-align:justify;}
a{color:var(--brand);text-decoration:none;border-bottom:1px dotted var(--brand);}
a:hover{color:var(--accent);}
sup a{border:none;font-size:11px;}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px;}
th{background:var(--brand);color:#fff;padding:8px 10px;text-align:left;font-weight:600;white-space:nowrap;}
td{border:1px solid var(--line);padding:8px 10px;vertical-align:top;}
tbody tr:nth-child(even){background:#f4f8fc;}
.cards{display:flex;flex-wrap:wrap;gap:14px;margin:18px 0;}
.card{flex:1 1 180px;background:var(--brand-light);border:1px solid var(--brand-border);border-radius:10px;padding:14px 16px;min-width:140px;}
.card b{display:block;font-size:20px;color:var(--brand);margin-bottom:4px;}
.card small{color:var(--sub);font-size:12.5px;display:block;}
.note{background:var(--accent-light);border-left:4px solid var(--accent);padding:10px 14px;border-radius:0 6px 6px 0;font-size:13.5px;margin:14px 0;}
.warn{background:var(--warn-light);border-left:4px solid var(--warn);padding:10px 14px;border-radius:0 6px 6px 0;font-size:13.5px;margin:14px 0;}
.toc{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:16px 24px;margin:20px 0;}
.toc ol{margin:6px 0;columns:2;column-gap:32px;}
.toc a{border:none;}
.timeline{border-left:3px solid var(--brand);margin:16px 0 16px 8px;padding-left:20px;list-style:none;}
.timeline li{margin:10px 0;position:relative;}
.timeline li::before{content:"";position:absolute;left:-26px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--brand);}
.timeline b{color:var(--brand);}
.src-list{font-size:13px;}
.src-list li{margin:5px 0;word-break:break-all;}
footer{margin-top:48px;border-top:1px solid var(--line);padding-top:16px;font-size:12.5px;color:var(--sub);}
ul,ol{margin:10px 0;padding-left:26px;}
li{margin:6px 0;}
blockquote{border-left:3px solid var(--line);margin:14px 0;padding:8px 16px;color:var(--sub);font-style:italic;}
hr{border:none;border-top:1px solid var(--line);margin:28px 0;}