/* ============================================================
   泓创智联传媒官网 — 暖海蓝视觉规范
   主色 #0E4E7F / 深蓝 #094270 / 橙点缀 #E8893C / 米白 #F5F5F5
   字体：Noto Sans SC（免费商用，版权合规）
   ============================================================ */
:root {
  --primary: #0E4E7F;
  --primary-deep: #094270;
  --accent: #E8893C;
  --ink: #212121;
  --muted: #6B6558;
  --bg: #FFFFFF;
  --surface: #F5F5F5;
  --surface-blue: #EEF4F9;
  --line: #D9DDE3;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(9, 66, 112, 0.10);
  --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--accent); }
.container { width: min(1160px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 38px; height: 38px; flex: none; }
.brand-text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.brand-text strong { font-size: 19px; color: var(--primary-deep); letter-spacing: 0.04em; border-bottom: 1px solid #C4B7A6; padding-bottom: 2px; }
.brand-text small { font-size: 9.5px; color: #6B5B4F; font-weight: 600; letter-spacing: 0.22em; margin-top: 2px; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav > a, .nav-drop-btn {
  font-size: 15px; color: var(--ink); font-weight: 500;
  background: none; border: none; cursor: pointer; font-family: var(--font);
  padding: 6px 0; position: relative;
}
.site-nav > a:hover, .nav-drop-btn:hover { color: var(--primary); }
.site-nav > a.nav-strong { color: var(--primary); font-weight: 700; }
.site-nav > a.nav-strong::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 3px; border-radius: 2px; background: var(--accent);
}
.nav-drop { position: relative; }
.nav-drop-menu {
  display: none; position: absolute; top: 100%; left: -12px;
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  box-shadow: var(--shadow); min-width: 180px; padding: 8px 0; z-index: 50;
}
.nav-drop:hover .nav-drop-menu, .nav-drop.open .nav-drop-menu { display: block; }
.nav-drop-menu a { display: block; padding: 9px 20px; font-size: 14px; color: var(--ink); }
.nav-drop-menu a:hover { background: var(--surface-blue); color: var(--primary); }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--primary); cursor: pointer; }

/* ---------- 通用 Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 60%, #156899 100%);
  color: #fff; padding: 84px 0 76px; position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -80px; bottom: -90px;
  width: 340px; height: 340px; border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 137, 60, 0.35), transparent 65%);
}
.hero-eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 0.3em;
  color: var(--accent); font-weight: 700; margin-bottom: 18px;
}
.hero h1 { font-size: clamp(28px, 4.5vw, 44px); font-weight: 700; line-height: 1.35; max-width: 760px; }
.hero p.lead { margin-top: 18px; font-size: 17px; color: rgba(255,255,255,0.88); max-width: 640px; }
.hero-actions { margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 34px; border-radius: 999px;
  font-size: 16px; font-weight: 700; transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-2px); color: inherit; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(232,137,60,.35); }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.65); color: #fff; }
.btn-blue { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(14,78,127,.25); }

/* 面包屑 */
.crumbs { padding: 18px 0 0; font-size: 13px; color: var(--muted); }
.crumbs a { color: var(--muted); }

/* ---------- 区块 ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--surface); }
.section.blue { background: var(--surface-blue); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .kicker {
  display: inline-block; font-size: 13px; letter-spacing: 0.25em;
  color: var(--accent); font-weight: 700; margin-bottom: 10px;
}
.section-head h2 { font-size: clamp(24px, 3vw, 32px); color: var(--primary-deep); line-height: 1.4; }
.section-head p { margin-top: 12px; color: var(--muted); font-size: 16px; }

/* 卡片网格 */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: 0 2px 10px rgba(9,66,112,.05);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .num {
  font-size: 30px; font-weight: 700; color: var(--accent); line-height: 1;
  margin-bottom: 12px; font-variant-numeric: tabular-nums;
}
.card h3 { font-size: 19px; color: var(--primary-deep); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--muted); }
.card .tag {
  display: inline-block; margin-top: 14px; padding: 4px 12px; border-radius: 999px;
  background: var(--surface-blue); color: var(--primary); font-size: 12.5px; font-weight: 500;
}
.card .more { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 700; }
.card.icon-top .icon { width: 46px; height: 46px; margin-bottom: 16px; }

/* 痛点条 */
.pain-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pain-item {
  background: #fff; border-left: 4px solid var(--accent); border-radius: 8px;
  padding: 20px 22px; box-shadow: 0 2px 8px rgba(9,66,112,.06);
}
.pain-item strong { display: block; color: var(--primary-deep); margin-bottom: 6px; font-size: 16px; }
.pain-item span { font-size: 14px; color: var(--muted); }

/* 引用块 */
.quote {
  border-left: 4px solid var(--accent); background: var(--surface);
  padding: 24px 28px; border-radius: 0 10px 10px 0; font-size: 17px;
  color: var(--primary-deep); font-weight: 500; max-width: 860px;
}

/* 步骤条 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; position: relative;
}
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 15px; font-weight: 700; color: #fff; background: var(--primary);
  width: 36px; height: 36px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; margin-bottom: 14px;
}
.step h3 { font-size: 17px; color: var(--primary-deep); margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--muted); }

/* 双栏信息表 */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.info-box {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px;
}
.info-box h3 { color: var(--primary-deep); font-size: 18px; margin-bottom: 14px; }
.info-box ul { list-style: none; }
.info-box li {
  font-size: 14.5px; color: var(--muted); padding: 7px 0 7px 24px; position: relative;
  border-bottom: 1px dashed var(--line);
}
.info-box li:last-child { border-bottom: none; }
.info-box li::before {
  content: ""; position: absolute; left: 2px; top: 16px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--accent);
}

/* 客群行 */
.audience-row {
  display: grid; grid-template-columns: 150px 1fr 1.4fr; gap: 18px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 20px 26px; margin-bottom: 14px;
}
.audience-row strong { color: var(--primary-deep); font-size: 17px; }
.audience-row .need { color: var(--muted); font-size: 14.5px; }
.audience-row .combo { font-size: 14.5px; color: var(--primary); font-weight: 500; }

/* CTA 横幅 */
.cta-band {
  background: linear-gradient(120deg, var(--primary-deep), var(--primary));
  color: #fff; padding: 56px 0; text-align: center;
}
.cta-band h2 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,.85); margin-bottom: 26px; font-size: 15.5px; }
.cta-band .phone {
  display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700;
  color: var(--accent); letter-spacing: 0.05em;
}

/* ---------- 联系页 / 表单 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 34px; align-items: start; }
.contact-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; margin-bottom: 18px; box-shadow: 0 2px 10px rgba(9,66,112,.05);
}
.contact-card h3 { color: var(--primary-deep); font-size: 18px; margin-bottom: 6px; }
.contact-card .big { font-size: 24px; font-weight: 700; color: var(--primary); letter-spacing: 0.03em; }
.contact-card p { color: var(--muted); font-size: 14px; margin-top: 6px; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 32px; }
.form-card h3 { color: var(--primary-deep); font-size: 20px; margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--primary-deep); }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px;
  font-family: var(--font); font-size: 14.5px; background: #fff; color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,78,127,.12);
}
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 10px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--primary-deep); color: rgba(255,255,255,.82); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-grid h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-grid a { color: rgba(255,255,255,.82); display: block; padding: 5px 0; font-size: 14.5px; }
.footer-grid a:hover { color: var(--accent); }
.footer-slogan { font-size: 15px; margin-top: 14px; }
.footer-slogan strong { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.15); padding: 18px 0; text-align: center;
  font-size: 13px; color: rgba(255,255,255,.55);
}

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .audience-row { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 680px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 4%;
    box-shadow: var(--shadow);
  }
  .site-nav.show { display: flex; }
  .site-nav > a, .nav-drop-btn { padding: 13px 0; border-bottom: 1px solid var(--surface); }
  .nav-drop-menu { position: static; display: none; box-shadow: none; border: none; padding: 0 0 0 18px; }
  .nav-drop.open .nav-drop-menu { display: block; }
  .grid-2, .grid-3, .form-row, .info-grid, .steps { grid-template-columns: 1fr; }
  .pain-strip { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero { padding: 60px 0 56px; }
}