/* ===== 中创启华官网 主样式 ===== */
:root {
  --blue-900: #0d3468;
  --blue-800: #114487;
  --blue-700: #1655a8;
  --blue-600: #1f6bc9;
  --blue-100: #e8f0fb;
  --blue-50: #f4f8fd;
  --ink: #1c2733;
  --ink-2: #46586b;
  --ink-3: #7a8a9a;
  --line: #dde6ef;
  --gold: #e09a2f;
  --white: #fff;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(13, 52, 104, .08);
  --maxw: 1140px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color: var(--ink);
  line-height: 1.75;
  background: var(--white);
}
img { max-width: 100%; display: block; }
a { color: var(--blue-700); text-decoration: none; }
a:hover { color: var(--blue-600); }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部通告条 ---------- */
.topbar {
  background: var(--blue-900); color: #cfe0f5; font-size: 13px;
}
.topbar .container { display: flex; justify-content: space-between; padding-top: 6px; padding-bottom: 6px; }
.topbar a { color: #fff; font-weight: 600; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand .logo {
  height: 40px; width: auto; display: block;
}
.brand .slogan-mini { font-size: 12px; color: var(--ink-3); }
.brand-text { display: flex; flex-direction: column; align-items: center; line-height: 1.25; }
.brand-name { font-size: 18px; font-weight: 700; color: var(--blue-900); letter-spacing: 2px; }
.nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-menu > li { position: relative; }
.nav-menu a.nav-link {
  display: block; padding: 8px 12px; color: var(--ink); font-size: 15px; border-radius: 6px; white-space: nowrap;
}
.nav-menu a.nav-link:hover { background: var(--blue-50); color: var(--blue-700); }
.nav-menu a.nav-link.active { color: var(--blue-700); font-weight: 700; }
.dropdown { position: absolute; left: 0; top: 100%; min-width: 220px; background: #fff;
  border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow);
  padding: 8px; display: none; }
.nav-menu li:hover .dropdown, .nav-menu li:focus-within .dropdown { display: block; }
.dropdown a { display: block; padding: 9px 12px; border-radius: 6px; font-size: 14px; color: var(--ink); }
.dropdown a:hover { background: var(--blue-50); color: var(--blue-700); }
.nav-cta { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav-cta .btn { white-space: nowrap; }
.nav-phone { font-size: 14px; color: var(--blue-800); font-weight: 700; white-space: nowrap; }
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 8px; font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: all .15s ease; text-align: center;
}
.btn-primary { background: var(--blue-700); color: #fff; }
.btn-primary:hover { background: var(--blue-600); color: #fff; transform: translateY(-1px); }
.btn-outline { border-color: var(--blue-700); color: var(--blue-700); background: transparent; }
.btn-outline:hover { background: var(--blue-50); }
.btn-ghost-light { border-color: rgba(255,255,255,.65); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-lg { padding: 14px 34px; font-size: 17px; }

/* 移动端菜单 */
.menu-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--blue-800); cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 62%, #2f7fd6 100%);
  color: #fff; padding: 84px 0 64px; position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -120px; top: -80px; width: 420px; height: 420px;
  background: rgba(255,255,255,.06); transform: rotate(45deg);
}
.hero .eyebrow { font-size: 15px; letter-spacing: 3px; color: #bcd6f5; margin-bottom: 14px; }
.hero h1 { font-size: 44px; line-height: 1.3; letter-spacing: 2px; margin-bottom: 16px; }
.hero .sub { font-size: 19px; color: #dcebff; max-width: 640px; margin-bottom: 30px; }
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 38px; }
.trust-band { display: flex; gap: 42px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.25); padding-top: 26px; }
.trust-band .stat b { display: block; font-size: 30px; line-height: 1.2; }
.trust-band .stat span { font-size: 14px; color: #c6dcf8; }

/* ---------- 通用区块 ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--blue-50); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.section-head .kicker { color: var(--blue-600); font-weight: 700; letter-spacing: 2px; font-size: 14px; }
.section-head h2 { font-size: 32px; margin: 6px 0 12px; color: var(--blue-900); }
.section-head p { color: var(--ink-2); font-size: 16px; }
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow);
}
.card h3 { font-size: 20px; color: var(--blue-900); margin-bottom: 6px; }
.card .tagline { color: var(--gold); font-size: 14px; font-weight: 700; margin-bottom: 12px; }
.card ul { list-style: none; margin: 0 0 16px; }
.card ul li { padding-left: 20px; position: relative; font-size: 15px; color: var(--ink-2); margin-bottom: 8px; }
.card ul li::before { content: "◎"; position: absolute; left: 0; color: var(--blue-600); font-size: 13px; }
.card .more { font-size: 14px; font-weight: 600; }
.card.highlight { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold), var(--shadow); }
.badge {
  display: inline-block; vertical-align: middle; margin-left: 8px;
  background: var(--gold); color: #fff; font-size: 12px; font-weight: 700;
  padding: 2px 8px; border-radius: 999px; letter-spacing: 1px;
}

/* 诊断钩子 */
.hook-box {
  display: flex; gap: 26px; align-items: center; flex-wrap: wrap;
  background: linear-gradient(120deg, var(--blue-800), var(--blue-600));
  color: #fff; border-radius: var(--radius); padding: 34px 38px;
}
.hook-box .hook-text { flex: 1 1 420px; }
.hook-box h3 { font-size: 24px; margin-bottom: 10px; }
.hook-box ol { margin: 0 0 0 20px; }
.hook-box ol li { margin-bottom: 6px; color: #e3efff; }
.hook-box strong { color: #fff; }

/* logo 墙 */
.logo-wall { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.logo-item {
  min-width: 200px; text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 30px; box-shadow: var(--shadow);
}
.logo-item b { font-size: 22px; color: var(--blue-900); letter-spacing: 4px; display: block; }
.logo-item span { font-size: 13px; color: var(--ink-3); }
.note { font-size: 13px; color: var(--ink-3); text-align: center; margin-top: 18px; }

/* 见证 */
.quote {
  background: #fff; border-left: 4px solid var(--blue-600); border-radius: 0 var(--radius) var(--radius) 0;
  padding: 24px 26px; box-shadow: var(--shadow); font-size: 15px; color: var(--ink-2);
}
.quote footer { margin-top: 12px; color: var(--ink-3); font-size: 14px; }

/* 痛点-方案对照表 */
.compare-table { width: 100%; border-collapse: collapse; background: #fff; box-shadow: var(--shadow); border-radius: var(--radius); overflow: hidden; }
.compare-table th, .compare-table td { padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: top; text-align: left; font-size: 15px; }
.compare-table th { background: var(--blue-800); color: #fff; font-size: 15px; }
.compare-table td.pain { width: 44%; color: var(--ink-2); }
.compare-table td.pain b { color: var(--ink); }
.compare-table td.sol b { color: var(--blue-800); }
.compare-table tr.group-row td { background: var(--blue-100); font-weight: 700; color: var(--blue-900); }
.table-scroll { overflow-x: auto; }

/* 价值标签 */
.value-line { color: var(--gold); font-weight: 700; font-size: 14px; margin-top: 8px; }

/* 流程 */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 18px;
  text-align: center; box-shadow: var(--shadow); counter-increment: step; position: relative;
}
.step::before {
  content: counter(step, decimal-leading-zero); display: block; font-size: 26px; font-weight: 800;
  color: var(--blue-600); margin-bottom: 6px;
}
.step b { display: block; font-size: 16px; color: var(--blue-900); margin-bottom: 6px; }
.step span { font-size: 13px; color: var(--ink-2); }

/* 案例数字 */
.case-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card { background: #fff; border-top: 4px solid var(--blue-600); border-radius: var(--radius); padding: 28px 26px; box-shadow: var(--shadow); }
.case-card .num { font-size: 40px; font-weight: 800; color: var(--blue-800); line-height: 1.2; }
.case-card h3 { font-size: 17px; margin: 8px 0 6px; color: var(--blue-900); }
.case-card p { font-size: 14px; color: var(--ink-2); }

/* 案例详情（四段：背景/痛点/方案/成果） */
.case-detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-detail {
  background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--blue-600);
  border-radius: var(--radius); padding: 28px 26px; box-shadow: var(--shadow);
}
.case-detail > h3 { font-size: 18px; color: var(--blue-900); margin: 0 0 16px; line-height: 1.4; }
.case-detail .case-block { margin-top: 14px; }
.case-detail .case-block:first-of-type { margin-top: 0; }
.case-detail .case-block h4 {
  font-size: 13px; font-weight: 700; color: var(--blue-600); letter-spacing: 1px;
  margin: 0 0 6px; text-transform: uppercase;
}
.case-detail .case-block p { font-size: 14px; color: var(--ink-2); line-height: 1.7; margin: 0; }
.case-detail .case-block ol { margin: 0; padding-left: 20px; }
.case-detail .case-block li { font-size: 14px; color: var(--ink-2); line-height: 1.7; margin-bottom: 4px; }
.case-detail .case-block.outcome { background: var(--blue-100); border-radius: 8px; padding: 14px 16px; }
.case-detail .case-block.outcome li { color: var(--blue-900); }

/* FAQ */
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; box-shadow: var(--shadow); }
.faq-item summary {
  cursor: pointer; padding: 18px 22px; font-size: 16px; font-weight: 700; color: var(--blue-900);
  list-style: none; position: relative; padding-right: 44px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 20px; top: 14px; font-size: 22px; color: var(--blue-600); }
.faq-item[open] summary::after { content: "−"; }
.faq-item .answer { padding: 0 22px 18px; color: var(--ink-2); font-size: 15px; }

/* 表单 */
.form-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 36px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 22px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.form-field label .req { color: #d64545; }
.form-field input[type=text], .form-field input[type=tel], .form-field select, .form-field textarea {
  padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 15px; font-family: inherit;
  background: #fff; color: var(--ink);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: 2px solid var(--blue-100); border-color: var(--blue-600); }
.form-field .err { color: #d64545; font-size: 13px; min-height: 18px; }
.checkbox-row { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.checkbox-row label { font-weight: 400; font-size: 14px; display: flex; align-items: center; gap: 6px; }
.agree-row { font-size: 14px; color: var(--ink-2); display: flex; gap: 8px; align-items: flex-start; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-msg { margin-top: 16px; font-size: 15px; border-radius: 8px; padding: 14px 16px; display: none; }
.form-msg.ok { display: block; background: #e9f7ee; color: #1e7a3c; border: 1px solid #bce3c9; }
.form-msg.fail { display: block; background: #fdeeee; color: #b93434; border: 1px solid #f0c7c7; }

/* 联系信息侧栏 */
.contact-aside { background: var(--blue-800); color: #dcebff; border-radius: var(--radius); padding: 32px 28px; }
.contact-aside h3 { color: #fff; font-size: 19px; margin-bottom: 14px; }
.contact-aside p { font-size: 14px; margin-bottom: 10px; }
.contact-aside b { color: #fff; font-size: 16px; }
.contact-aside .hotline { font-size: 26px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.mini-qr { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.mini-qr img { background: #fff; padding: 8px; border-radius: 8px; width: 150px; height: 150px; }
.mini-qr span { font-size: 13px; color: #dcebff; }

/* CTA 横条 */
.cta-band { background: linear-gradient(120deg, var(--blue-900), var(--blue-700)); color: #fff; text-align: center; padding: 56px 0; }
.cta-band h2 { font-size: 28px; margin-bottom: 10px; }
.cta-band p { color: #cfe2fa; margin-bottom: 24px; }

/* 面包屑 */
.breadcrumb { font-size: 13px; color: var(--ink-3); padding: 16px 0 0; }
.breadcrumb a { color: var(--ink-3); }
.breadcrumb a:hover { color: var(--blue-700); }

/* 页面标题带 */
.page-head { background: linear-gradient(135deg, var(--blue-900), var(--blue-700)); color: #fff; padding: 52px 0; }
.page-head h1 { font-size: 34px; letter-spacing: 1px; margin-bottom: 8px; }
.page-head p { color: #d3e5fb; font-size: 16px; max-width: 720px; }

/* 富文本 */
.prose h2 { font-size: 24px; color: var(--blue-900); margin: 34px 0 12px; }
.prose h3 { font-size: 19px; color: var(--blue-800); margin: 24px 0 8px; }
.prose p { margin-bottom: 12px; color: var(--ink-2); }
.prose ul { margin: 0 0 14px 22px; color: var(--ink-2); }
.prose li { margin-bottom: 6px; }
.answer-first {
  background: var(--blue-50); border-left: 4px solid var(--blue-600); padding: 16px 20px;
  border-radius: 0 8px 8px 0; margin-bottom: 26px; color: var(--ink); font-size: 16px;
}

/* ---------- 页脚 ---------- */
.site-footer { background: var(--blue-900); color: #a8c3e4; font-size: 14px; margin-top: 0; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding: 54px 0 40px; }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 8px; }
.site-footer a { color: #a8c3e4; }
.site-footer a:hover { color: #fff; }
.footer-brand b { color: #fff; font-size: 20px; letter-spacing: 1px; display: block; margin-bottom: 8px; }
.footer-hotline { color: #fff; font-size: 22px; font-weight: 800; margin: 6px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding: 18px 0; font-size: 13px; color: #7f9dc4; }
.footer-bottom .disclaimer { margin-bottom: 8px; }
.footer-bottom a { color: #a8c3e4; }
.footer-bottom .copyright { white-space: nowrap; }
.gov-beian { white-space: nowrap; }
.gov-beian img { display: inline-block; height: 1.15em; width: auto; vertical-align: -0.22em; margin-right: 4px; }
.qr-code {
  width: 108px; height: 108px; border-radius: 8px; display: block; background: #fff; padding: 4px; object-fit: contain;
}

/* 联系页：表单 + 侧栏两列（可响应） */
.contact-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 30px; }

/* 移动端底部固定 CTA 栏（默认隐藏，仅窄屏显示） */
.mobile-cta { display: none; }

/* ---------- 响应式 ---------- */
/* 中等宽度：导航项增多后先让位——隐藏品牌副标语与头部电话（顶部通告条已含电话），避免单行拥挤 */
@media (max-width: 1120px) {
  .brand .slogan-mini { display: none; }
  .nav-phone { display: none; }
}

/* 导航折叠为汉堡菜单：一级栏目较多，提前到 960px 折叠，避免中等屏拥挤变形 */
@media (max-width: 960px) {
  .menu-toggle { display: block; margin-left: auto; }
  .nav-menu {
    display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; padding: 12px; gap: 2px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    max-height: calc(100vh - 68px); overflow-y: auto;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a.nav-link { padding: 12px 14px; font-size: 16px; white-space: normal; }
  .dropdown { position: static; display: block; border: none; box-shadow: none; padding-left: 18px; }
  .dropdown a { padding: 11px 12px; }
  .nav-cta { display: none; }
}

@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 34px; }
  .contact-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 28px; }
}

@media (max-width: 720px) {
  /* 栅格统一单列 */
  .grid-2, .grid-3, .grid-4, .case-stats, .case-detail-grid, .form-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; text-align: left; }

  /* Hero */
  .hero { padding: 52px 0 40px; }
  .hero h1 { font-size: 26px; letter-spacing: 1px; }
  .hero .sub { font-size: 16px; }
  .hero .eyebrow { letter-spacing: 2px; }
  .hero .cta-row { gap: 10px; }
  .hero .cta-row .btn { width: 100%; }
  .btn-lg { padding: 13px 24px; font-size: 16px; }
  .trust-band { gap: 20px 30px; padding-top: 20px; }
  .trust-band .stat b { font-size: 24px; }

  /* 区块与标题 */
  .section { padding: 44px 0; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 24px; }
  .page-head { padding: 40px 0; }
  .page-head h1 { font-size: 26px; }
  .cta-band { padding: 44px 0; }
  .cta-band h2 { font-size: 23px; }
  .cta-band .btn { display: block; width: 100%; max-width: 340px; margin: 10px auto 0; }
  .cta-band .btn[style] { margin-left: auto !important; }

  /* 卡片 / 盒子内边距收紧 */
  .card { padding: 24px 20px; }
  .hook-box { padding: 26px 22px; gap: 18px; }
  .hook-box h3 { font-size: 21px; }
  .form-panel { padding: 22px 16px; }
  .contact-aside { padding: 26px 22px; }
  .prose h2 { font-size: 21px; }

  /* 表格：紧凑内边距（外层 .table-scroll 提供横向滚动） */
  .compare-table th, .compare-table td { padding: 12px 12px; font-size: 14px; }

  /* 顶部通告条堆叠 */
  .topbar .container { flex-direction: column; gap: 2px; text-align: center; }

  /* 触达尺寸：链接类可点区域 */
  .site-footer ul li a { display: inline-block; padding: 3px 0; }

  /* 为底部固定 CTA 栏预留空间 */
  body { padding-bottom: 62px; }

  /* 移动端底部固定 CTA 栏 */
  .mobile-cta {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 200;
    box-shadow: 0 -2px 12px rgba(13, 52, 104, .16);
  }
  .mobile-cta a {
    flex: 1; text-align: center; padding: 15px 6px; font-size: 15px; font-weight: 700;
    color: #fff; border: none;
  }
  .mobile-cta .call { background: var(--blue-800); }
  .mobile-cta .book { background: var(--gold); }
}

@media (max-width: 420px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 23px; }
  .section-head h2 { font-size: 22px; }
  .brand .logo { height: 34px; }
  .case-card .num { font-size: 32px; }
  .contact-aside .hotline, .footer-hotline { font-size: 22px; }
}