/* ============================================================
   深圳中科创投 - 全新设计
   配色：深海蓝 #0A2540 / 铜金 #C9A96E / 暖白 #FAFAF7
   排版：左侧固定竖导航 + 不对称分栏 + 衬线大标题
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --navy:      #0A2540;
  --navy-2:    #13315C;
  --gold:      #C9A96E;
  --gold-2:    #E0C99A;
  --bg:        #FAFAF7;
  --bg-2:      #FFFFFF;
  --ink:       #1A1A1A;
  --ink-2:     #555;
  --line:      #E5E2DA;
}

html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  font-size: 15px;
}
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--gold); }
img { max-width: 100%; display: block; }

h1, h2, h3, .serif {
  font-family: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
  font-weight: 600;
  letter-spacing: .02em;
}

/* ---------- 左侧固定竖导航（桌面端） ---------- */
.side-nav {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: 240px;
  background: var(--navy);
  color: #fff;
  padding: 48px 32px;
  display: flex; flex-direction: column;
  z-index: 100;
}
.side-nav .brand {
  font-family: "Songti SC", serif;
  font-size: 24px; font-weight: 700;
  color: var(--gold-2);
  letter-spacing: .1em;
  margin-bottom: 8px;
}
.side-nav .brand-sub {
  font-size: 11px; color: rgba(255,255,255,.55);
  letter-spacing: .2em; margin-bottom: 48px;
}
.side-nav nav { flex: 1; }
.side-nav nav a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: rgba(255,255,255,.75);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.side-nav nav a:hover, .side-nav nav a.active {
  color: var(--gold-2);
  padding-left: 8px;
}
.side-nav .nav-footer {
  font-size: 11px; color: rgba(255,255,255,.4);
  line-height: 1.8;
}

/* 移动端顶栏 */
.mobile-bar {
  display: none;
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--navy); color: #fff;
  padding: 14px 20px; z-index: 101;
  align-items: center; justify-content: space-between;
}
.mobile-bar .brand { color: var(--gold-2); font-family: serif; font-size: 18px; }
.mobile-bar .menu-btn { font-size: 20px; cursor: pointer; }

/* 主内容区 */
.main {
  margin-left: 240px;
  min-height: 100vh;
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 140px 0 120px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; right: -100px; top: -100px;
  width: 400px; height: 400px;
  border: 1px solid rgba(201,169,110,.25);
  border-radius: 50%;
}
.hero .tag {
  display: inline-block;
  font-size: 12px; letter-spacing: .3em;
  color: var(--gold-2);
  border: 1px solid var(--gold);
  padding: 6px 16px;
  margin-bottom: 32px;
}
.hero h1 {
  font-size: 52px; line-height: 1.25;
  margin-bottom: 24px;
  max-width: 780px;
}
.hero h1 em { color: var(--gold-2); font-style: normal; }
.hero p.lead {
  font-size: 17px; color: rgba(255,255,255,.75);
  max-width: 640px;
  margin-bottom: 40px;
}
.hero .cta-row { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-size: 14px; letter-spacing: .1em;
  cursor: pointer; border: none;
  transition: all .2s;
}
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-2); color: var(--navy); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.4); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-2); }

/* ---------- 数据条 ---------- */
.stats-bar {
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  padding: 48px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat .num {
  font-family: serif;
  font-size: 40px; color: var(--navy);
  font-weight: 700;
}
.stat .num span { color: var(--gold); }
.stat .label { font-size: 13px; color: var(--ink-2); margin-top: 4px; }

/* ---------- 通用 section ---------- */
section { padding: 96px 0; }
.section-head {
  margin-bottom: 56px;
  max-width: 640px;
}
.section-head .kicker {
  font-size: 12px; letter-spacing: .3em;
  color: var(--gold); text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 36px; line-height: 1.3;
  color: var(--navy);
}
.section-head p {
  margin-top: 16px; color: var(--ink-2);
  font-size: 15px;
}

/* ---------- 服务卡片（不对称 2x2 带偏移） ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.service-card {
  background: var(--bg-2);
  padding: 40px;
  border-top: 3px solid var(--gold);
  transition: transform .2s, box-shadow .2s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(10,37,64,.08); }
.service-card:nth-child(even) { margin-top: 40px; }
.service-card .num {
  font-family: serif; font-size: 14px; color: var(--gold);
  letter-spacing: .2em; margin-bottom: 16px;
}
.service-card h3 { font-size: 22px; color: var(--navy); margin-bottom: 12px; }
.service-card p { color: var(--ink-2); font-size: 14px; }
.service-card ul { margin-top: 16px; padding-left: 18px; color: var(--ink-2); font-size: 14px; }
.service-card ul li { margin-bottom: 6px; }

/* ---------- 关于块（左图右文） ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split .visual {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 64px 48px;
  min-height: 360px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.split .visual .big {
  font-family: serif; font-size: 48px;
  color: var(--gold-2); line-height: 1.2;
}
.split .text h3 { font-size: 26px; color: var(--navy); margin-bottom: 20px; }
.split .text p { color: var(--ink-2); margin-bottom: 16px; }

/* ---------- 新闻列表 ---------- */
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 32px; align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  transition: background .15s;
}
.news-item:hover { background: var(--bg-2); padding-left: 12px; padding-right: 12px; }
.news-item .date { font-size: 13px; color: var(--ink-2); font-family: serif; }
.news-item h3 { font-size: 18px; color: var(--navy); font-weight: 500; }
.news-item .cat {
  font-size: 12px; color: var(--gold);
  border: 1px solid var(--gold); padding: 2px 10px;
}

/* ---------- 联系区块 ---------- */
.contact-block {
  background: var(--navy);
  color: #fff;
  padding: 80px 0;
}
.contact-block .grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact-block h2 { color: #fff; font-size: 32px; margin-bottom: 24px; }
.contact-block .info-item {
  display: flex; gap: 16px; margin-bottom: 20px;
  color: rgba(255,255,255,.85); font-size: 15px;
}
.contact-block .info-item .ico {
  color: var(--gold-2); width: 24px;
}
.form-box {
  background: #fff; padding: 40px; color: var(--ink);
}
.form-box h3 { color: var(--navy); margin-bottom: 20px; font-size: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-size: 13px; color: var(--ink-2);
  margin-bottom: 6px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px;
  border: 1px solid var(--line);
  font-size: 14px; font-family: inherit;
  background: var(--bg);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--gold);
}
.form-box .btn { width: 100%; }

/* ---------- 页脚 ---------- */
footer.site {
  background: #06182E;
  color: rgba(255,255,255,.55);
  padding: 48px 0;
  font-size: 13px;
}
footer.site .grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
footer.site h4 {
  color: #fff; font-size: 14px; margin-bottom: 16px;
  font-family: serif;
}
footer.site a { display: block; padding: 4px 0; color: rgba(255,255,255,.55); }
footer.site a:hover { color: var(--gold-2); }
footer.site .copy {
  margin-top: 32px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
}

/* ---------- 内页 page-header ---------- */
.page-header {
  background: var(--navy);
  color: #fff;
  padding: 100px 0 80px;
}
.page-header .kicker { color: var(--gold-2); font-size: 12px; letter-spacing: .3em; }
.page-header h1 { font-size: 44px; margin-top: 12px; }
.page-header p { color: rgba(255,255,255,.7); max-width: 640px; margin-top: 16px; }

/* ---------- 法律页 ---------- */
.legal { max-width: 800px; }
.legal h2 { color: var(--navy); font-size: 22px; margin: 32px 0 12px; }
.legal p { color: var(--ink-2); margin-bottom: 12px; }

/* ---------- 团队 ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.team-card {
  background: var(--bg-2);
  padding: 32px;
  text-align: left;
  border-bottom: 2px solid var(--gold);
}
.team-card .avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--navy); color: var(--gold-2);
  display: flex; align-items: center; justify-content: center;
  font-family: serif; font-size: 24px;
  margin-bottom: 20px;
}
.team-card h3 { font-size: 18px; color: var(--navy); }
.team-card .role { font-size: 13px; color: var(--gold); margin: 4px 0 12px; }
.team-card p { font-size: 13px; color: var(--ink-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .side-nav { display: none; }
  .mobile-bar { display: flex; }
  .main { margin-left: 0; padding-top: 60px; }
  .container { padding: 0 24px; }
  .hero { padding: 80px 0 60px; }
  .hero h1 { font-size: 34px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid, .split, .contact-block .grid, footer.site .grid {
    grid-template-columns: 1fr;
  }
  .service-card:nth-child(even) { margin-top: 0; }
  .team-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 8px; }
}