/* =========================================================
   Moreast — 企业文化页专属布局文件（页眉 / 页脚 / 导航 + 页面板块）
   ---------------------------------------------------------
   本文件【仅 culture.html】使用，管理该页的页面框架样式：
     · 顶部导航（.site-header / .nav / .nav__*）
     · 移动端折叠菜单（.nav__toggle / .is-open）
     · 页脚（.site-footer / .footer__*）
   以及企业文化页专属内容板块样式。
   与各页内容样式 styles.css 完全分离。
   注意：本文件依赖 styles.css 中定义的 :root 设计变量。
   ========================================================= */

/* ---------- 顶部导航（与首页 / 网站开发 / 网站优化一致） ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo */
.nav__logo { display: inline-flex; align-items: center; gap: 0.7rem; transition: opacity 0.25s ease; }
.nav__logo:hover { opacity: 0.85; }
.nav__logo .mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(150deg, #1b3a6b 0%, #2b62b8 55%, #f5a623 120%);
  display: grid; place-items: center;
  color: #fff; font-weight: 900; font-size: 1.25rem; letter-spacing: -1px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.3), 0 4px 12px rgba(27,58,107,0.3);
}
.nav__brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.nav__brand-cn { font-size: 1.2rem; font-weight: 800; color: var(--color-brand); letter-spacing: 0.04em; }
.nav__brand-en { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.32em; color: var(--color-accent-dark); text-transform: uppercase; }

.nav__right { display: flex; align-items: center; gap: var(--space-md); }
.nav__menu { display: flex; align-items: center; gap: 10px; }
.nav__menu a {
  font-size: var(--fs-sm); font-weight: 600; color: var(--color-text);
  padding: 8px 18px;
  border-radius: 8px;
  border: 1.5px solid #e5e7eb;
  background: #fff;
  transition: all 0.2s ease; position: relative;
}
.nav__menu a::after { display: none; }
.nav__menu a:hover,
.nav__menu a.is-active {
  color: #fff;
  background: linear-gradient(135deg, #1b3a6b, #2563eb);
  border-color: transparent;
}
.nav__toggle {
  display: none; background: none; border: none; font-size: 1.6rem;
  cursor: pointer; color: var(--color-brand); line-height: 1;
}

/* 页脚（与首页 / 网站开发 / 网站优化一致） */
.site-footer { background: var(--color-bg-dark); color: #c7d4e6; padding: 2.2rem 0 1.5rem; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 1.5rem; }
.footer__grid h4 { color: #fff; font-size: 0.95rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 0.6rem; }
.footer__grid a { color: #c7d4e6; font-size: 0.95rem; display: block; margin-bottom: 0.45rem; line-height: 1.5; }
.footer__grid a:hover { color: var(--color-accent); }
.footer__grid span { display: block; font-size: 0.95rem; color: #c7d4e6; margin-bottom: 0.45rem; line-height: 1.55; }
.footer__brand { color: #fff; font-weight: 800; font-size: 1.35rem; margin-bottom: 0.5rem; }
.footer__brand-col { grid-column: span 1; }
.footer__desc { font-size: 0.95rem; max-width: 380px; line-height: 1.65; margin-bottom: 0; color: #c7d4e6; }
.footer__contact-mini { display: flex; flex-direction: column; gap: 6px; }
.footer__contact-mini a { font-size: 0.95rem; color: #c7d4e6; margin-bottom: 0; }
.footer__contact-mini a:hover { color: var(--color-accent); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.12); margin-top: 1.25rem;
  padding-top: 0.8rem; font-size: 0.82rem; text-align: center; color: #8fa3c0;
}

/* 导航 / 页脚响应式 */
@media (max-width: 960px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) {
  .nav__right { gap: 0.6rem; }
  .nav__menu {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: var(--space-sm);
    background: #fff; padding: var(--space-md);
    border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow-md);
  }
  .nav__menu.is-open { display: flex; }
  .nav__menu a { font-size: 1rem; padding: 10px 20px; }
  .nav__toggle { display: block; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand-col { grid-column: 1 / -1; }
}

/* =========================================================
   企业文化页专属板块
   配色沿用 styles.css 设计变量（navy + amber）
   ========================================================= */

/* ---------- 1. Hero（深海军蓝渐变 + 居中标题，呼应首屏风格） ---------- */
.culture-hero {
  position: relative;
  background:
    radial-gradient(1200px 500px at 20% -10%, rgba(245,166,35,0.12) 0%, transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(43,98,184,0.25) 0%, transparent 55%),
    linear-gradient(160deg, #0f2545 0%, #122a4f 55%, #0a1b34 100%);
  color: #fff;
  padding: var(--space-xl) 0;
  text-align: center;
  overflow: hidden;
}
.culture-hero .container { position: relative; z-index: 2; }
.culture-hero .eyebrow { color: #f5c06a; }
.culture-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
  color: #fff;
}
.culture-hero__lead {
  font-size: var(--fs-lg);
  color: #c7d4e6;
  max-width: 660px;
  margin: 0 auto var(--space-md);
  line-height: 1.8;
}
.culture-hero__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.culture-hero .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.4); }
.culture-hero .btn--ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.culture-hero .btn--primary { color: #1a1a1a; }

/* ---------- 2. 核心价值观 2x2 卡片（复用 .card 基础样式） ---------- */
.cv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.cv-card { position: relative; overflow: hidden; }
.cv-card__top {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-sm);
}
.cv-card__icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--color-bg-soft); color: var(--color-brand);
  display: grid; place-items: center; font-size: 1.7rem;
}
.cv-card__num {
  font-size: 2.6rem; font-weight: 900; line-height: 1;
  color: var(--color-border);
}
.cv-card h3 { font-size: var(--fs-lg); color: var(--color-brand); margin-bottom: var(--space-xs); }
.cv-card p { color: var(--color-text-muted); font-size: var(--fs-sm); margin: 0; line-height: 1.75; }

@media (max-width: 640px) {
  .cv-grid { grid-template-columns: 1fr; }
}

/* ---------- 3. 使命愿景详情（左右交替布局） ---------- */
.culture-detail { background: var(--color-bg-soft); }
.cd-item {
  display: flex; gap: var(--space-lg); align-items: center;
  margin-bottom: var(--space-lg);
}
.cd-item:last-child { margin-bottom: 0; }
.cd-item--reverse .cd-visual { order: 2; }
.cd-item--reverse .cd-text { order: 1; }
.cd-visual { flex: 1; min-width: 0; }
.cd-svg {
  width: 100%; max-width: 460px; height: auto;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md); display: block;
}
.cd-text { flex: 1; min-width: 0; }
.cd-tag {
  display: inline-block; padding: 0.35rem 1rem; border-radius: 50px;
  background: rgba(245,166,35,0.12); color: var(--color-accent-dark);
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.04em;
  margin-bottom: var(--space-sm);
}
.cd-title {
  font-size: var(--fs-xl); font-weight: 800; color: var(--color-brand);
  line-height: 1.3; margin-bottom: var(--space-sm);
}
.cd-desc { font-size: var(--fs-base); color: var(--color-text-muted); line-height: 1.8; margin-bottom: var(--space-sm); }
.cd-points { display: flex; flex-direction: column; gap: 0.6rem; }
.cd-point {
  font-size: var(--fs-sm); font-weight: 600; color: var(--color-text);
  padding-left: 1.5rem; position: relative;
}
.cd-point::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--color-accent-dark); font-weight: 800;
}

@media (max-width: 768px) {
  .cd-item { flex-direction: column; gap: var(--space-md); }
  .cd-item--reverse .cd-visual,
  .cd-item--reverse .cd-text { order: initial; }
  .cd-visual { width: 100%; }
  .cd-svg { margin: 0 auto; }
}