/* ============================================================
   中语（深圳）文化产业有限公司 门户样式
   主题：珠宝质感 · 深炭底 + 鎏金点缀
   ============================================================ */

:root {
  --bg: #0f0f12;
  --bg-alt: #16161c;
  --surface: #1b1b22;
  --border: rgba(201, 168, 106, 0.18);
  --gold: #c9a86a;
  --gold-soft: #d8bd86;
  --text: #ece9e2;
  --text-muted: #a7a299;
  --maxw: 1120px;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15, 15, 18, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; flex-direction: column; line-height: 1.1; }
.brand-mark {
  font-size: 22px; font-weight: 700; letter-spacing: 4px;
  background: linear-gradient(120deg, var(--gold-soft), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-sub { font-size: 11px; letter-spacing: 2px; color: var(--text-muted); margin-top: 2px; }

.nav-menu { display: flex; gap: 30px; }
.nav-menu a {
  font-size: 15px; color: var(--text-muted); position: relative; padding: 6px 0;
  transition: color .25s ease;
}
.nav-menu a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--gold); transition: width .25s ease;
}
.nav-menu a:hover { color: var(--text); }
.nav-menu a:hover::after { width: 100%; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); transition: .3s; }

/* ---------- 首屏 ---------- */
.hero {
  position: relative; padding: 130px 0 150px;
  background:
    radial-gradient(1200px 500px at 70% -10%, rgba(201, 168, 106, 0.16), transparent 60%),
    linear-gradient(180deg, #13131a, #0f0f12);
  overflow: hidden;
}
.hero-inner { text-align: center; }
.hero-eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 4px; color: var(--gold);
  border: 1px solid var(--border); border-radius: 999px; padding: 6px 18px; margin-bottom: 26px;
}
.hero-title {
  font-size: 44px; font-weight: 800; letter-spacing: 2px; line-height: 1.25;
  background: linear-gradient(120deg, #fff, var(--gold-soft));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { margin: 22px auto 36px; max-width: 720px; font-size: 18px; color: var(--text-muted); }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-fade { position: absolute; left: 0; right: 0; bottom: 0; height: 80px; background: linear-gradient(180deg, transparent, var(--bg)); }

.btn {
  display: inline-block; padding: 13px 30px; border-radius: 999px; font-size: 15px; font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease; cursor: pointer;
}
.btn-gold { background: linear-gradient(120deg, var(--gold-soft), var(--gold)); color: #1a1408; box-shadow: 0 10px 30px rgba(201, 168, 106, 0.25); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 14px 38px rgba(201, 168, 106, 0.4); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-soft); }

/* ---------- 通用区块 ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { margin-bottom: 40px; }
.section-tag { font-size: 12px; letter-spacing: 4px; color: var(--gold); }
.section-title { font-size: 30px; font-weight: 700; margin-top: 8px; position: relative; padding-left: 18px; }
.section-title::before { content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 4px; border-radius: 4px; background: linear-gradient(var(--gold-soft), var(--gold)); }

/* ---------- 公司简介 ---------- */
.about-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 40px; align-items: start; }
.about-text p { font-size: 16px; color: var(--text); margin-bottom: 18px; }
.about-text strong { color: var(--gold-soft); font-weight: 600; }
.about-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
}
.about-card h3 { font-size: 18px; color: var(--gold-soft); margin-bottom: 16px; }
.about-card ul { list-style: none; }
.about-card li { padding: 10px 0 10px 22px; position: relative; color: var(--text-muted); border-top: 1px dashed var(--border); }
.about-card li:first-child { border-top: 0; }
.about-card li::before { content: "◆"; position: absolute; left: 0; color: var(--gold); font-size: 11px; top: 13px; }

/* ---------- 使命 / 愿景 引言 ---------- */
.big-quote {
  font-size: 26px; font-weight: 600; line-height: 1.7; color: var(--text);
  border-left: 4px solid var(--gold); padding: 8px 0 8px 28px; max-width: 860px;
}
.big-quote em { color: var(--gold-soft); font-style: normal; }

.vision-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.pillar {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; transition: transform .25s ease, border-color .25s ease;
}
.pillar:hover { transform: translateY(-4px); border-color: var(--gold); }
.pillar-no { font-size: 14px; color: var(--gold); letter-spacing: 2px; }
.pillar h4 { font-size: 19px; margin: 10px 0 8px; }
.pillar p { color: var(--text-muted); font-size: 14px; }

/* ---------- 发展目标 ---------- */
.goal-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.goal-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; position: relative; overflow: hidden; transition: transform .25s ease, border-color .25s ease;
}
.goal-card::after {
  content: ""; position: absolute; right: -40px; top: -40px; width: 120px; height: 120px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 168, 106, 0.18), transparent 70%);
}
.goal-card:hover { transform: translateY(-4px); border-color: var(--gold); }
.goal-stage {
  display: inline-block; font-size: 13px; letter-spacing: 2px; color: #1a1408; font-weight: 700;
  background: linear-gradient(120deg, var(--gold-soft), var(--gold)); border-radius: 999px; padding: 5px 16px; margin-bottom: 16px;
}
.goal-card h3 { font-size: 20px; margin-bottom: 12px; }
.goal-card p { color: var(--text-muted); font-size: 15px; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: center; }
.contact-info h3 { font-size: 22px; margin-bottom: 18px; color: var(--gold-soft); }
.contact-row { margin-bottom: 12px; color: var(--text); font-size: 15px; }
.contact-label { display: inline-block; width: 48px; color: var(--gold); font-size: 13px; letter-spacing: 2px; }
.contact-note {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
  color: var(--text-muted); font-size: 15px;
}

/* ---------- 页脚 ---------- */
.site-footer { background: #0b0b0e; border-top: 1px solid var(--border); padding: 40px 0; text-align: center; }
.footer-brand { font-size: 16px; color: var(--gold-soft); letter-spacing: 1px; }
.footer-addr { color: var(--text-muted); font-size: 14px; margin: 10px 0; }
.footer-copy { color: #6f6a63; font-size: 13px; }
.footer-icp { margin-top: 8px; font-size: 13px; }
.footer-icp a { color: #6f6a63; transition: color .25s ease; }
.footer-icp a:hover { color: var(--gold-soft); }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0;
    background: rgba(15, 15, 18, 0.97); border-bottom: 1px solid var(--border);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
  }
  .nav-menu.open { max-height: 320px; }
  .nav-menu a { padding: 16px 24px; border-top: 1px solid var(--border); }
  .nav-menu a::after { display: none; }

  .hero-title { font-size: 32px; }
  .hero-lead { font-size: 16px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .vision-pillars, .goal-cards { grid-template-columns: 1fr; }
  .big-quote { font-size: 21px; }
  .section { padding: 64px 0; }
}