/* ============================================================
   汇知保 hzbooo.com — 全站样式
   设计语言参考 Stripe DESIGN.md（靛蓝主色 / 细字重 / 渐变网纱 / 胶囊按钮）
   ============================================================ */
:root {
  --primary: #533afd;
  --primary-deep: #4434d4;
  --primary-press: #2e2b8c;
  --primary-soft: #b9b9f9;
  --brand-dark: #1c1e54;
  --ink: #0d253d;
  --ink-2: #273951;
  --ink-mute: #64748d;
  --canvas: #ffffff;
  --canvas-soft: #f6f9fc;
  --canvas-cream: #f5e9d4;
  --hairline: #e3e8ee;
  --ruby: #ea2261;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --pill: 9999px;
  --shadow-1: 0 1px 3px rgba(0, 55, 112, .08);
  --shadow-2: 0 8px 24px rgba(0, 55, 112, .08), 0 2px 6px rgba(0, 55, 112, .04);
  --font: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--canvas);
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 排版层级 ---------- */
h1 { font-size: 44px; font-weight: 300; line-height: 1.15; letter-spacing: -1px; }
h2 { font-size: 32px; font-weight: 300; line-height: 1.2; letter-spacing: -.6px; }
h3 { font-size: 20px; font-weight: 400; line-height: 1.4; letter-spacing: -.2px; }
h4 { font-size: 16px; font-weight: 400; }
p { color: var(--ink-2); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-soft { background: var(--canvas-soft); }
.eyebrow {
  display: inline-block; font-size: 11px; font-weight: 400; letter-spacing: .12em;
  text-transform: uppercase; color: var(--primary-deep); margin-bottom: 12px;
}
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head p { margin-top: 14px; color: var(--ink-mute); }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 400; color: var(--ink); letter-spacing: -.5px; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 32px; height: 32px; border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--brand-dark) 100%);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 400;
}
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { color: var(--ink-2); font-size: 15px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--primary); text-decoration: none; }
.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-tel { color: var(--ink); font-size: 15px; font-feature-settings: "tnum"; font-weight: 400; }
.menu-btn { display: none; background: none; border: 1px solid var(--hairline); border-radius: var(--r-sm); padding: 8px 12px; font-size: 18px; color: var(--ink); cursor: pointer; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 9px 20px; border-radius: var(--pill);
  font-size: 15px; font-weight: 400; line-height: 1.4; cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-deep); }
.btn-primary:active { background: var(--primary-press); }
.btn-outline { background: var(--canvas); color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { border-color: var(--primary-deep); color: var(--primary-deep); }
.btn-lg { padding: 12px 28px; font-size: 16px; }

/* ---------- Hero 渐变网纱 ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(600px 300px at 8% 0%, rgba(245, 233, 212, .9), transparent 70%),
    radial-gradient(700px 340px at 30% 10%, rgba(249, 107, 238, .18), transparent 70%),
    radial-gradient(800px 380px at 62% 0%, rgba(83, 58, 253, .16), transparent 72%),
    radial-gradient(600px 320px at 92% 8%, rgba(234, 34, 97, .14), transparent 70%),
    var(--canvas);
  padding: 88px 0 96px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { margin-bottom: 20px; }
.hero .lead { font-size: 17px; color: var(--ink-2); margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-tags { margin-top: 28px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  background: var(--primary-soft); color: var(--primary-deep);
  font-size: 11px; letter-spacing: .08em; padding: 4px 10px; border-radius: var(--pill);
}
.tag-plain { background: var(--canvas-soft); color: var(--ink-mute); border: 1px solid var(--hairline); }

/* Hero 右侧卡片组（模拟"一站式服务面板"） */
.hero-panel {
  background: var(--canvas); border-radius: 16px; box-shadow: var(--shadow-2);
  border: 1px solid var(--hairline); padding: 28px;
}
.hero-panel h3 { margin-bottom: 18px; }
.flow-item { display: flex; gap: 14px; padding: 12px 0; border-top: 1px solid var(--hairline); }
.flow-item:first-of-type { border-top: none; }
.flow-dot {
  flex: none; width: 34px; height: 34px; border-radius: var(--pill);
  background: var(--canvas-soft); color: var(--primary-deep);
  display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 400;
}
.flow-item b { display: block; font-weight: 400; color: var(--ink); }
.flow-item span { font-size: 13px; color: var(--ink-mute); }

/* ---------- 卡片网格 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.card {
  background: var(--canvas); border: 1px solid var(--hairline);
  border-radius: var(--r-lg); padding: 32px; box-shadow: var(--shadow-1);
  transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--ink-mute); }
.card .more { display: inline-block; margin-top: 16px; font-size: 14px; font-weight: 400; }
.card-icon {
  width: 44px; height: 44px; border-radius: var(--r-md); margin-bottom: 18px;
  background: var(--canvas-soft); display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.card-cream { background: var(--canvas-cream); border-color: transparent; }
.card-dark { background: var(--brand-dark); color: #fff; border-color: transparent; }
.card-dark h3, .card-dark b { color: #fff; }
.card-dark p { color: #c3c6e8; }

/* ---------- 步骤条 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding-top: 18px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 13px; font-weight: 400; color: var(--primary-deep);
  font-feature-settings: "tnum"; letter-spacing: .08em;
}
.step::after { content: ""; display: block; width: 40px; height: 2px; background: var(--primary); margin: 10px 0 14px; }
.step b { display: block; font-weight: 400; margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--ink-mute); }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--hairline); border-radius: var(--r-lg); background: var(--canvas); margin-bottom: 16px; }
.faq-item summary {
  cursor: pointer; padding: 18px 24px; font-weight: 400; color: var(--ink);
  list-style: none; position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 24px; color: var(--primary); font-size: 18px; }
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-a { padding: 0 24px 20px; color: var(--ink-2); font-size: 14px; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 13px; color: var(--ink-mute); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid #a8c3de; border-radius: var(--r-sm);
  font-family: var(--font); font-size: 15px; color: var(--ink); background: var(--canvas);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

/* ---------- 页脚 ---------- */
footer { border-top: 1px solid var(--hairline); padding: 64px 24px 32px; background: var(--canvas); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; max-width: 1200px; margin: 0 auto; }
.footer-grid h4 { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 14px; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { color: var(--ink-2); font-size: 14px; }
.footer-grid a:hover { color: var(--primary); }
.footer-desc { font-size: 14px; color: var(--ink-mute); max-width: 320px; margin-top: 12px; }
.footer-bottom {
  max-width: 1200px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid var(--hairline);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--ink-mute);
}
.contact-line { font-size: 14px; color: var(--ink-2); margin-bottom: 8px; font-feature-settings: "tnum"; }

/* ---------- 面包屑 ---------- */
.breadcrumb { font-size: 13px; color: var(--ink-mute); padding: 20px 0 0; }
.breadcrumb a { color: var(--ink-mute); }

/* ---------- 页头横幅（子页面） ---------- */
.page-hero {
  background:
    radial-gradient(500px 260px at 12% 0%, rgba(245, 233, 212, .8), transparent 70%),
    radial-gradient(600px 300px at 55% 0%, rgba(83, 58, 253, .14), transparent 72%),
    radial-gradient(500px 260px at 90% 10%, rgba(234, 34, 97, .1), transparent 70%),
    var(--canvas);
  padding: 56px 0 64px;
}
.page-hero .lead { max-width: 640px; margin-top: 14px; color: var(--ink-2); font-size: 16px; }

/* ---------- 资讯列表 ---------- */
.post-item { border-bottom: 1px solid var(--hairline); padding: 28px 0; }
.post-item h3 { margin-bottom: 8px; }
.post-item time { font-size: 13px; color: var(--ink-mute); font-feature-settings: "tnum"; }
.post-item p { font-size: 14px; color: var(--ink-mute); margin-top: 6px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1023px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 767px) {
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .section { padding: 56px 0; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .nav-links, .nav-tel { display: none; }
  .menu-btn { display: block; }
  .nav.open .nav-links {
    display: flex; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--canvas); border-bottom: 1px solid var(--hairline);
    padding: 8px 24px 16px;
  }
  .nav.open .nav-links a { display: block; padding: 12px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}