/* ==========================================================================
   医知云官网设计层（2026-09-24 P2）
   目的：不改页面结构的前提下统一并升级视觉——更稳的字阶、更克制的配色、
   更一致的卡片/按钮/表格/页脚。加载顺序在所有页面样式之后，用于覆盖旧观感。
   ========================================================================== */

:root {
  --ink: #0b1220;
  --ink-soft: #47536b;
  --muted: #7c8798;
  --line: #e6e9f0;
  --line-strong: #d5dae6;
  --bg-soft: #f6f8fc;
  --brand: #1d5bff;
  --brand-ink: #0b3bc7;
  --brand-soft: #eef3ff;
  --accent: #12b0a0;
  --warn: #b45309;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(11, 18, 32, .04), 0 1px 3px rgba(11, 18, 32, .06);
  --shadow-md: 0 4px 12px rgba(11, 18, 32, .06), 0 12px 32px -12px rgba(11, 18, 32, .14);
  --shadow-lift: 0 10px 24px -8px rgba(29, 91, 255, .22);
}

/* ---------- 基础排版 ---------- */
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { color: var(--ink); letter-spacing: -.02em; line-height: 1.2; margin-top: 0; }
h1 { font-size: clamp(2rem, 4.4vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 700; }
h3 { font-size: 1.125rem; font-weight: 600; }
p { color: var(--ink-soft); }
a { transition: color .18s ease, border-color .18s ease, background-color .18s ease, transform .18s ease, box-shadow .18s ease; }
strong { color: var(--ink); font-weight: 600; }
::selection { background: rgba(29, 91, 255, .16); }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }

/* 段落默认色（旧页大量使用 Tailwind 的 text-gray-600/700） */
.text-gray-600, .text-gray-700, .text-gray-500 { color: var(--ink-soft); }
.text-gray-400 { color: var(--muted); }
.text-blue-600, .text-blue-700 { color: var(--brand); }

/* ---------- 区块节奏 ---------- */
section { position: relative; }
section.py-20 { padding-top: 5.5rem; padding-bottom: 5.5rem; }
section.py-16 { padding-top: 4.5rem; padding-bottom: 4.5rem; }
section.py-12 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.bg-gray-50 { background-color: var(--bg-soft); }
.bg-white { background-color: #fff; }
.border-gray-100, .border-gray-200 { border-color: var(--line); }

/* 标题下的品牌短线：不改结构也能让版式“有设计” */
section .text-center > h2::after,
section .text-center > h1::after {
  content: '';
  display: block;
  width: 44px;
  height: 3px;
  border-radius: 3px;
  background: var(--brand);
  margin: 16px auto 0;
  opacity: .9;
}
section .text-center > h2.mb-8::after,
section .text-center > h2.mb-10::after { margin-bottom: 0; }

/* ---------- 按钮 ---------- */
a.bg-blue-600, button.bg-blue-600, .btn-brand {
  background: var(--brand);
  color: #fff;
  border-radius: 12px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
a.bg-blue-600:hover, button.bg-blue-600:hover, .btn-brand:hover {
  background: var(--brand-ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lift);
}
a.border-2, a.border-gray-300 {
  border-color: var(--line-strong);
  border-radius: 12px;
  color: var(--ink);
  font-weight: 600;
}
a.border-2:hover, a.border-gray-300:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }

/* ---------- 卡片 ---------- */
.rounded-2xl { border-radius: var(--radius-lg); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.card-hover { transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #cfdcff; }
section .bg-white.rounded-2xl, section .bg-gray-50.rounded-2xl { border: 1px solid var(--line); }
section .bg-gray-50.rounded-2xl { border-color: #e9edf6; }

/* 徽标 / 小标签 */
.rounded-full.bg-blue-50, .rounded-full.bg-blue-100 { background: var(--brand-soft); color: var(--brand-ink); font-weight: 600; }
.rounded-full.bg-gray-100 { background: #f1f3f8; color: var(--ink-soft); }

/* ---------- 表格（案例数据/交付项） ---------- */
table { border-collapse: collapse; width: 100%; }
thead th { background: #f3f5fa; color: var(--ink); font-weight: 600; letter-spacing: .01em; }
tbody tr { transition: background-color .15s ease; }
tbody tr:hover { background: #fafbfe; }
tbody td { color: var(--ink-soft); }

/* ---------- 顶部导航 ---------- */
#main-nav { box-shadow: 0 1px 0 var(--line); }
#main-nav .nav-link,
#navMenu .nav-link { color: var(--ink-soft); font-weight: 500; padding: 6px 10px; border-radius: 8px; }
#main-nav .nav-link:hover, #navMenu .nav-link:hover { color: var(--brand); background: var(--brand-soft); }
#main-nav .nav-link.active, #navMenu .nav-link.active { color: var(--brand); font-weight: 600; }
#navMenu { box-shadow: var(--shadow-md); }

/* ---------- 页脚 ---------- */
footer { background: #0b1220 !important; color: #98a2b8 !important; }
footer h4 { color: #fff; font-size: .8125rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 1rem; }
footer a { color: #98a2b8; }
footer a:hover { color: #fff; }
footer .border-t { border-color: #1c2434 !important; }

/* ---------- 博客列表：标签筛选 + 分页 ---------- */
.tagchip {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  font-size: .8125rem;
  font-weight: 500;
  cursor: pointer;
}
.tagchip:hover { border-color: #cfdcff; color: var(--brand); }
.tagchip.active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pagebtn {
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  font-weight: 600;
  cursor: pointer;
}
.pagebtn:hover { border-color: #cfdcff; color: var(--brand); }
.pagebtn.active { background: var(--brand); border-color: var(--brand); color: #fff; }

.blog-card { border: 1px solid var(--line); }
.blog-card:hover { border-color: #cfdcff; }
.blog-card h2 { transition: color .18s ease; }
.blog-card:hover h2 { color: var(--brand); }

/* ---------- 正文（博客/案例）阅读体验 ---------- */
.prose { font-size: 1.0625rem; }
.prose h2 { margin-top: 2.6rem; padding-top: .2rem; }
.prose h3 { margin-top: 1.9rem; }
.prose p, .prose li { color: #38445c; line-height: 1.9; }
.prose blockquote { border-left: 3px solid var(--brand); background: var(--brand-soft); border-radius: 0 10px 10px 0; padding: 14px 18px; color: var(--ink-soft); }
.prose code { background: #f2f4f9; color: var(--brand-ink); border-radius: 6px; padding: .12em .4em; font-size: .92em; }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose hr { border-color: var(--line); }

/* ---------- 动画与可访问性 ---------- */
.fade-in { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-in { opacity: 1 !important; transform: none !important; transition: none !important; }
  .card-hover:hover, a.bg-blue-600:hover { transform: none; }
}

/* ---------- 移动端微调 ---------- */
@media (max-width: 767px) {
  h1 { font-size: clamp(1.75rem, 7vw, 2.4rem); }
  section.py-20 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .prose { font-size: 1rem; }
  .prose h2 { font-size: 1.35rem; }
}