/* 鲁大师 bb —— 系统体检 · 健康报告
   色调跟官方站走:白底 + 深蓝黑 + 深海军蓝 + 品牌蓝,无琥珀无绿 */
:root {
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --brand: #0060f0;
  --brand-dark: #0048c8;
  --navy: #23435e;
  --navy-deep: #101b26;
  --sky: #3aa0e0;
  --ink: #101b26;
  --muted: #727b84;
  --line: #e6ecf4;
  --ok: #12875b;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(16, 27, 38, .08);
  --shadow-sm: 0 4px 14px rgba(16, 27, 38, .06);
  --sans: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans); color: var(--ink); background: var(--bg);
  line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 900; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.wrap-wide { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.hl { color: var(--brand); }

/* ---------- 顶部导航 ---------- */
.hd { position: sticky; top: 0; z-index: 50; background: #fff; border-bottom: 2px solid var(--brand); box-shadow: 0 1px 0 var(--line); }
.hd-in { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--navy); }
.brand-logo { width: 38px; height: 38px; border-radius: 9px; flex: 0 0 auto; }
.brand-word { display: flex; flex-direction: column; line-height: 1.15; font-weight: 900; font-size: 19px; }
.brand-word small { font-weight: 600; font-size: 11px; color: var(--muted); letter-spacing: .5px; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link { padding: 8px 12px; border-radius: 8px; color: var(--navy); font-weight: 600; font-size: 15px; white-space: nowrap; }
.nav-link:hover { background: var(--bg-alt); color: var(--brand); }
.nav-link.active { color: var(--brand); background: #eaf1ff; }
.nav-cta { padding: 9px 20px; border-radius: 999px; background: var(--brand); color: #fff; font-weight: 700; font-size: 15px; white-space: nowrap; }
.nav-cta:hover { background: var(--brand-dark); color: #fff; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 8px; font-size: 20px; width: 40px; height: 40px; cursor: pointer; color: var(--navy); }

/* ---------- hero ---------- */
.hero { background: linear-gradient(160deg, #0f2538 0%, #16354f 55%, #1d4a6e 100%); color: #fff; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .12; background-image: radial-gradient(circle at 15% 30%, rgba(0,96,240,.5), transparent 42%), radial-gradient(circle at 82% 75%, rgba(58,160,224,.45), transparent 46%); }
.hero-in { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; padding-top: 64px; padding-bottom: 64px; }
.kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; letter-spacing: 2px; color: var(--sky); font-weight: 700; }
.kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(0,96,240,.25); }
.hero-title { font-size: 46px; font-weight: 900; line-height: 1.14; margin: 16px 0 14px; }
.hero-title .hl { color: #6fb0ff; }
.hero-sub { font-size: 17px; color: #d6e4f2; max-width: 540px; }
.hero-cta-row { display: flex; align-items: center; gap: 14px; margin-top: 26px; flex-wrap: wrap; }
.hero-note { margin-top: 16px; color: #b9cde0; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.hero-note .ico { color: #57e0a3; font-weight: 700; }
.ghost-link { color: #8fc1ff; text-decoration: underline; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 13px 28px; border-radius: 10px; font-weight: 700; font-size: 16px; cursor: pointer; border: none; }
.btn-cta { background: var(--brand); color: #fff; box-shadow: 0 8px 22px rgba(0,96,240,.35); }
.btn-cta:hover { background: var(--brand-dark); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.28); }
.btn-ghost:hover { background: rgba(255,255,255,.2); color: #fff; }
.hero-search { display: flex; align-items: center; background: #fff; border-radius: 10px; padding: 4px 4px 4px 16px; flex: 1; min-width: 220px; max-width: 340px; }
.hero-search input { flex: 1; border: none; outline: none; font-size: 15px; color: var(--ink); background: transparent; }
.hero-search button { background: var(--brand); color: #fff; border: none; border-radius: 7px; width: 40px; height: 40px; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.hero-copy { display: flex; flex-direction: column; min-width: 0; }

/* ---------- 体检报告单 hero 卡片 ---------- */
.hero-panel { background: #fff; color: var(--ink); border-radius: 16px; box-shadow: 0 30px 60px rgba(0,0,0,.35); padding: 22px 22px 20px; position: relative; }
.hero-panel::after { content: ""; position: absolute; left: 0; top: 0; height: 5px; width: 100%; border-radius: 16px 16px 0 0; background: linear-gradient(90deg, var(--brand), var(--sky)); }
.report-head { display: flex; align-items: center; gap: 10px; padding-bottom: 12px; border-bottom: 1px dashed var(--line); }
.report-ico { width: 34px; height: 34px; border-radius: 9px; background: #eaf1ff; color: var(--brand); display: flex; align-items: center; justify-content: center; }
.report-ico svg { width: 20px; height: 20px; }
.report-title { font-weight: 900; font-size: 17px; color: var(--navy); }
.report-stamp { margin-left: auto; background: var(--ok); color: #fff; font-weight: 700; font-size: 13px; padding: 4px 12px; border-radius: 999px; letter-spacing: 1px; }
.report-patient { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); padding: 12px 0 4px; }
.report-patient b { color: var(--navy); }
.report-id { margin-left: auto; font-size: 12px; color: #9aa6b2; }
.report-items { display: flex; flex-direction: column; gap: 9px; padding: 8px 0 14px; }
.ri { display: grid; grid-template-columns: 44px 1fr 56px; align-items: center; gap: 10px; }
.ri-name { font-weight: 700; font-size: 14px; color: var(--navy); }
.ri-bar { height: 8px; border-radius: 999px; background: var(--bg-alt); overflow: hidden; }
.ri-bar i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--brand), var(--sky)); }
.ri-ok { font-size: 13px; font-weight: 700; color: var(--ok); text-align: right; }
.report-foot { display: flex; align-items: center; gap: 20px; border-top: 1px dashed var(--line); padding-top: 14px; }
.report-score { display: flex; align-items: center; gap: 12px; }
.ring { width: 62px; height: 62px; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--bg-alt); stroke-width: 9; }
.ring-fg { fill: none; stroke: var(--brand); stroke-width: 9; stroke-linecap: round; stroke-dasharray: 201; stroke-dashoffset: 16; }
.ring-num { fill: var(--navy); font-size: 24px; font-weight: 900; transform: rotate(90deg); transform-origin: 40px 40px; text-anchor: middle; }
.rs-t { display: flex; flex-direction: column; font-size: 13px; color: var(--muted); line-height: 1.3; }
.rs-t b { color: var(--navy); font-size: 15px; }
.report-temp { margin-left: auto; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
.report-temp b { color: var(--navy); font-size: 22px; }
.rt-ico { color: var(--brand); display: flex; }
.rt-ico svg { width: 22px; height: 22px; }
.rt-tag { background: #e6f7ef; color: var(--ok); font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px; }

/* ---------- 通用分区 ---------- */
.sec { padding: 64px 0; }
.sec-alt { background: var(--bg-alt); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 30px; flex-wrap: wrap; }
.sec-title { font-size: 30px; color: var(--navy); }
.sec-lead { color: var(--muted); margin-top: 6px; max-width: 560px; }
.sec-more { font-weight: 700; color: var(--brand); white-space: nowrap; }
.sec-more:hover { color: var(--brand-dark); }

/* ---------- 功能网格 ---------- */
.feats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; transition: transform .18s, box-shadow .18s; }
.feat:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feat-ico { width: 44px; height: 44px; border-radius: 11px; display: flex; align-items: center; justify-content: center; margin-bottom: 13px; }
.feat-ico svg { width: 23px; height: 23px; }
.feat-ico.navy { background: #e9eff5; color: var(--navy); }
.feat-ico.blue { background: #eaf1ff; color: var(--brand); }
.feat-ico.sky { background: #e7f5fd; color: var(--sky); }
.feat-t { font-weight: 900; font-size: 16px; color: var(--navy); }
.feat-d { font-size: 14px; color: var(--muted); margin-top: 4px; }

/* ---------- 三大核心能力 ---------- */
.models { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.model { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; }
.model-top { display: flex; align-items: center; gap: 10px; }
.model-ico { width: 40px; height: 40px; border-radius: 10px; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 19px; }
.model-t { font-weight: 900; font-size: 18px; color: var(--navy); }
.model-tag { margin-left: auto; font-size: 12px; color: var(--brand); background: #eaf1ff; padding: 2px 9px; border-radius: 999px; font-weight: 700; }
.model-d { color: var(--muted); font-size: 15px; margin: 12px 0; }
.model-stats { display: flex; flex-wrap: wrap; gap: 8px; }
.model-stats span { font-size: 13px; color: var(--muted); background: var(--bg-alt); border-radius: 7px; padding: 4px 10px; }
.model-stats b { color: var(--navy); font-weight: 700; }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; }
.step-no { width: 34px; height: 34px; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 900; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.step-t { font-weight: 900; font-size: 17px; color: var(--navy); }
.step-d { color: var(--muted); font-size: 14px; margin-top: 6px; }

/* ---------- 平台卡片 ---------- */
.plats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.plat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; transition: transform .18s, box-shadow .18s; }
.plat:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.plat-ico { width: 42px; height: 42px; border-radius: 11px; background: #eaf1ff; color: var(--brand); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.plat-ico svg { width: 22px; height: 22px; }
.plat-t { font-weight: 900; font-size: 16px; color: var(--navy); }
.plat-d { font-size: 14px; color: var(--muted); margin: 5px 0 10px; }
.plat-cta { font-weight: 700; font-size: 14px; }

/* ---------- 左右图文 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.split.rev .split-img { order: 2; }
.split-img img { border-radius: var(--radius); box-shadow: var(--shadow); }
.split-txt h3 { font-size: 26px; color: var(--navy); margin-bottom: 12px; }
.split-txt p { color: var(--muted); margin-bottom: 12px; }

/* ---------- 卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .18s, box-shadow .18s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-b { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.card-cat { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--brand); background: #eaf1ff; padding: 2px 10px; border-radius: 999px; margin-bottom: 10px; }
.card-t { font-weight: 900; font-size: 16px; color: var(--navy); line-height: 1.4; }
.card-d { font-size: 14px; color: var(--muted); margin: 8px 0 12px; }
.card-more { margin-top: auto; font-weight: 700; font-size: 14px; }

/* ---------- FAQ ---------- */
.faq { max-width: 840px; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; background: #fff; overflow: hidden; }
.faq-q { width: 100%; text-align: left; background: none; border: none; cursor: pointer; padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; gap: 14px; font-size: 16px; font-weight: 700; color: var(--navy); font-family: var(--sans); }
.faq-q .ico { color: var(--brand); font-size: 20px; font-weight: 400; flex: 0 0 auto; }
.faq-a { display: none; padding: 0 20px 18px; color: var(--muted); font-size: 15px; }
.faq-item.open .faq-a { display: block; }
.faq-item.open .faq-q .ico { transform: rotate(45deg); }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(120deg, var(--navy-deep), var(--navy)); border-radius: 18px; padding: 40px 44px; display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; color: #fff; }
.cta-t { font-size: 26px; font-weight: 900; }
.cta-d { color: #c9d8e6; margin-top: 8px; max-width: 560px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cta .btn-ghost { border-color: rgba(255,255,255,.35); }

/* ---------- 内页 hero ---------- */
.page-hero { background: linear-gradient(160deg, #0f2538 0%, #16354f 55%, #1d4a6e 100%); color: #fff; padding: 52px 0; position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; opacity: .12; background-image: radial-gradient(circle at 85% 20%, rgba(0,96,240,.5), transparent 45%); }
.page-hero-in { position: relative; }
.page-hero .kicker { color: var(--sky); }
.page-title { font-size: 38px; margin: 12px 0 10px; }
.page-sub { color: #d6e4f2; font-size: 17px; max-width: 700px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 14px; color: var(--muted); padding: 18px 0 0; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--brand); }
.crumb span { color: var(--navy); font-weight: 600; }

/* ---------- 表格 / 提示 ---------- */
.table { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.table table { width: 100%; border-collapse: collapse; font-size: 15px; }
.table th { background: var(--navy); color: #fff; text-align: left; padding: 13px 16px; font-weight: 700; }
.table td { padding: 12px 16px; border-top: 1px solid var(--line); color: var(--muted); }
.table td.yes { color: var(--ok); font-weight: 700; }
.table td.no { color: #c4ccd4; }
.callout { background: #eaf1ff; border-left: 4px solid var(--brand); border-radius: 0 10px 10px 0; padding: 16px 18px; color: var(--navy); display: flex; gap: 12px; align-items: flex-start; }
.callout .ico { flex: 0 0 auto; width: 22px; height: 22px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; }

/* ---------- 参数网格 ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.spec-item { display: flex; align-items: center; gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.spec-item .k { flex: 0 0 84px; font-weight: 700; color: var(--navy); }
.spec-item .v { color: var(--muted); }

/* ---------- 文章双栏 ---------- */
.article-grid { display: grid; grid-template-columns: 240px 1fr; gap: 36px; align-items: start; }
.toc-nav { position: sticky; top: 86px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.toc-nav h4 { font-size: 14px; color: var(--muted); letter-spacing: 1px; margin-bottom: 10px; }
.toc-link { display: block; font-size: 14px; color: var(--navy); padding: 6px 0; border-bottom: 1px dashed var(--line); }
.toc-link:hover { color: var(--brand); }
.article-body { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 34px 38px; }
.article-body h1 { font-size: 30px; color: var(--navy); line-height: 1.3; }
.article-meta { display: flex; align-items: center; gap: 14px; margin: 14px 0 18px; color: var(--muted); font-size: 13px; flex-wrap: wrap; }
.badge { background: #eaf1ff; color: var(--brand); font-weight: 700; padding: 2px 10px; border-radius: 999px; }
.article-body .lead { font-size: 17px; color: var(--navy); font-weight: 500; margin-bottom: 18px; }
.article-body h2 { font-size: 22px; color: var(--navy); margin: 26px 0 10px; }
.article-body h3 { font-size: 18px; color: var(--navy); margin: 20px 0 8px; }
.article-body p { color: #3a4652; margin-bottom: 14px; }
.article-body img { border-radius: 12px; margin: 14px 0 8px; }
.cap { font-size: 13px; color: #9aa6b2; margin: 0 0 16px; text-align: center; }
.author { display: flex; align-items: center; gap: 14px; margin-top: 30px; padding-top: 20px; border-top: 1px dashed var(--line); }
.avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 900; font-size: 20px; display: flex; align-items: center; justify-content: center; }
.author b { color: var(--navy); display: block; }
.author small { color: var(--muted); }

/* ---------- 相关卡片 ---------- */
.related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.related-card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; display: flex; flex-direction: column; gap: 6px; transition: box-shadow .18s, transform .18s; }
.related-card:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.related-card b { color: var(--navy); font-size: 15px; }
.related-card span { color: var(--muted); font-size: 13px; }

/* ---------- 搜索 ---------- */
.search-box .search-input { width: 100%; padding: 16px 20px; font-size: 17px; border: 2px solid var(--line); border-radius: 12px; outline: none; font-family: var(--sans); }
.search-box .search-input:focus { border-color: var(--brand); }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 100px 20px; }
.notfound .code { font-size: 100px; font-weight: 900; color: var(--brand); line-height: 1; }
.notfound h2 { font-size: 28px; color: var(--navy); margin: 12px 0 8px; }
.notfound p { color: var(--muted); margin-bottom: 24px; }

/* ---------- 页脚 ---------- */
.foot { background: var(--navy-deep); color: #c9d8e6; margin-top: 40px; }
.foot-in { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; padding-top: 52px; padding-bottom: 40px; }
.foot-brand .brand { color: #fff; margin-bottom: 14px; }
.foot-brand .brand-word small { color: #8fa6bb; }
.foot-brand p { font-size: 14px; color: #8fa6bb; max-width: 300px; }
.foot h5 { color: #fff; font-size: 15px; margin-bottom: 14px; letter-spacing: 1px; }
.foot-links { list-style: none; }
.foot-links li { margin-bottom: 9px; }
.foot-links a { color: #8fa6bb; font-size: 14px; }
.foot-links a:hover { color: #6fb0ff; }
.foot-copy { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 24px; text-align: center; font-size: 13px; color: #6f8499; }
.foot-copy a { color: #8fa6bb; }

/* ---------- 返回顶部 ---------- */
.backtop { position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border-radius: 50%; background: var(--brand); color: #fff; border: none; cursor: pointer; font-size: 20px; box-shadow: var(--shadow); display: none; z-index: 40; }
.backtop.show { display: block; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .feats, .plats { grid-template-columns: repeat(3, 1fr); }
  .nav { display: none; }
  .nav.open { display: flex; position: absolute; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 12px 20px; box-shadow: var(--shadow); }
  .menu-btn { display: block; }
  .hero-in { grid-template-columns: 1fr; gap: 32px; }
  .split { grid-template-columns: 1fr; }
  .split.rev .split-img { order: 0; }
  .article-grid { grid-template-columns: 1fr; }
  .toc-nav { position: static; }
  .foot-in { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .feats, .plats, .models, .steps, .cards, .related { grid-template-columns: 1fr 1fr; }
  .hero-title { font-size: 34px; }
  .sec-title { font-size: 24px; }
  .page-title { font-size: 30px; }
  .cta { padding: 30px 24px; }
  .spec-grid { grid-template-columns: 1fr; }
}