/* ============================================================
   美洽官网 · 站点扩展样式（在主题 style.css 之后加载）
   只补充首页以外的新页面组件，不改动主题既有样式。
   ============================================================ */

/* 顶部导航当前页高亮 */
.nav-menu a.current { color: var(--primary-color); }
.nav-menu a.current::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 6px auto 0;
  border-radius: 2px;
  background: linear-gradient(to right, #4f9df9, #a96dff);
}

/* 内页头图 */
.page-hero {
  background: linear-gradient(135deg, #f8fbff, #f3f0fc);
  margin-top: 80px;
  padding: 72px 0 64px;
  text-align: center;
}
.page-hero h1 { font-size: 2.4rem; line-height: 1.35; margin-bottom: 18px; color: var(--dark-color); }
.page-hero p { font-size: 1.05rem; color: var(--gray-color); max-width: 760px; margin: 0 auto; }
.page-hero .hero-buttons { margin-top: 30px; }

.breadcrumb { font-size: .85rem; color: #9aa3ad; margin-bottom: 18px; }
.breadcrumb a { color: #9aa3ad; }
.breadcrumb a:hover { color: var(--primary-color); }

/* 功能卡片补充说明 */
.feature-card { text-align: left; }
.feature-card .feature-icon-large { margin: 0 0 20px; }
.feature-card p { color: var(--gray-color); font-size: .95rem; }
.feature-card ul { margin-top: 14px; }
.feature-card ul li { position: relative; padding-left: 18px; margin-bottom: 6px; font-size: .9rem; color: #667; }
.feature-card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: linear-gradient(to right, #4f9df9, #a96dff);
}

/* 图文交替 */
.flow-row { display: flex; align-items: center; gap: 56px; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.flow-row + .flow-row { margin-top: 84px; }
.flow-row.reverse { flex-direction: row-reverse; }
.flow-text { flex: 1 1 0; min-width: 300px; }
.flow-text h2 { font-size: 1.9rem; margin-bottom: 16px; }
.flow-text p { color: var(--gray-color); margin-bottom: 14px; }
.flow-text ul { margin: 18px 0 26px; }
.flow-text li { position: relative; padding-left: 26px; margin-bottom: 10px; color: #4a5560; }
.flow-text li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0; top: 0;
  color: var(--primary-color);
  font-size: .9rem;
}
.flow-image { flex: 1 1 0; min-width: 300px; }
.flow-image img { width: 100%; border-radius: 18px; box-shadow: 0 18px 40px rgba(42, 157, 244, .16); }

/* 下载卡片 */
.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.dl-card {
  background: #fff;
  border-radius: 18px;
  padding: 38px 28px 32px;
  box-shadow: 0 10px 30px rgba(42, 157, 244, .10);
  text-align: center;
  transition: var(--transition);
}
.dl-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(42, 157, 244, .18); }
.dl-card i { font-size: 2.6rem; color: var(--primary-color); margin-bottom: 18px; display: block; }
.dl-card h3 { font-size: 1.25rem; margin-bottom: 8px; }
.dl-card .dl-meta { font-size: .85rem; color: #9aa3ad; margin-bottom: 18px; }
.dl-card p { font-size: .92rem; color: var(--gray-color); min-height: 44px; margin-bottom: 20px; }
.dl-card .btn, .dl-card .btn-outline { width: 100%; text-align: center; }

/* 安装步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: step; }
.step { position: relative; background: #fff; border-radius: 18px; padding: 34px 26px 28px; box-shadow: var(--shadow); }
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -18px; left: 26px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f9df9, #a96dff);
  color: #fff;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 14px rgba(105, 120, 255, .35);
}
.step h3 { font-size: 1.1rem; margin: 10px 0 8px; }
.step p { font-size: .92rem; color: var(--gray-color); }

/* 系统要求表 */
.req-table { max-width: 900px; margin: 0 auto; background: #fff; border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; }
.req-table table { border: none; font-size: .95rem; }
.req-table th { width: 180px; background: #f4f8ff; color: #37424d; text-align: left; }
.req-table td, .req-table th { padding: 16px 22px; border-color: #eef2f8; }

/* FAQ */
.faq-list { max-width: 920px; margin: 0 auto; display: grid; gap: 16px; }
.faq-item { background: #fff; border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 26px;
  font-weight: 600;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: .8rem;
  color: var(--primary-color);
  transition: transform .25s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item[open] summary { color: var(--primary-color); }
.faq-body { padding: 0 26px 24px; color: #55606b; line-height: 1.9; font-size: .96rem; }
.faq-body p + p { margin-top: 10px; }

/* CTA 横幅 */
.cta-band {
  background: linear-gradient(135deg, #2a9df4 0%, #6f7bf7 55%, #a96dff 100%);
  color: #fff;
  text-align: center;
  border-radius: 26px;
  padding: 64px 28px;
  box-shadow: 0 24px 60px rgba(88, 110, 255, .28);
}
.cta-band h2 { font-size: 2rem; margin-bottom: 14px; color: #fff; }
.cta-band p { color: rgba(255, 255, 255, .88); max-width: 620px; margin: 0 auto 28px; }
.cta-band .btn { background: #fff; color: #5b6bff; }
.cta-band .btn:hover { color: #5b6bff !important; }
.cta-band .btn.btn-outline {
  background: rgba(255, 255, 255, .18);
  border: 2px solid #fff;
  color: #fff;
}
.cta-band .btn.btn-outline:hover {
  background: rgba(255, 255, 255, .3);
  border-color: #fff;
  color: #fff !important;
}

/* 移动端 */
@media screen and (max-width: 992px) {
  .download-grid, .steps { grid-template-columns: 1fr; }
  .flow-row, .flow-row.reverse { flex-direction: column; gap: 30px; margin-top: 0; }
  .flow-row + .flow-row { margin-top: 60px; }
  .flow-text h2 { font-size: 1.6rem; }
}
@media screen and (max-width: 768px) {
  .page-hero { padding: 52px 0 46px; }
  .page-hero h1 { font-size: 1.7rem; }
  .cta-band { padding: 42px 20px; border-radius: 18px; }
  .cta-band h2 { font-size: 1.4rem; }
  .faq-item summary { padding: 18px 18px; font-size: .98rem; }
  .faq-body { padding: 0 18px 20px; font-size: .92rem; }
  .req-table table { font-size: .85rem; }
  .req-table td, .req-table th { padding: 12px 14px; }
}