/* ==========================================================================
   support.css —— 技术支持页私有样式
   结构：hero → 支持范围3卡 → 售后流程三步 → FAQ(10条) → 服务承诺 → CTA
   ========================================================================== */

.sp-hero {
  position: relative;
  color: #fbfaf6;
  padding: 120px 0 100px;
  background:
    linear-gradient(120deg, rgba(35, 36, 31, .82), rgba(63, 95, 58, .55)),
    url("../images/banner-support.jpg") center / cover no-repeat;
}
.sp-hero .hero-eyebrow {
  font-size: .8rem;
  letter-spacing: .3em;
  color: #cfe0c8;
  margin-bottom: 14px;
}
.sp-hero h1 { color: #fbfaf6; margin-bottom: 16px; }
.sp-hero .hero-sub { max-width: 700px; color: rgba(251, 250, 246, .85); margin: 0; }

.channel-sec { background: var(--paper); }

.flow-sec { background: var(--rice); }

/* FAQ */
.faq-sec { background: var(--paper); }
.faq-sec .faq { max-width: 860px; margin-left: auto; margin-right: auto; }

/* 承诺 */
.promise-sec { background: var(--rice-deep); }
.promise-box {
  background: var(--bamboo-mist);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 820px;
  margin: 0 auto;
}
.promise-box h2 { margin-bottom: 12px; }

/* CTA */
.cta-band {
  background: var(--bamboo);
  padding: 56px 0;
}
.cta-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-flex h2 { color: #fbfaf6; margin-bottom: 8px; }
.cta-flex p { color: rgba(251, 250, 246, .85); margin: 0; }
.btn-light { background: #fbfaf6; color: var(--bamboo-deep); }
.btn-light:hover { background: #fff; transform: translateY(-2px); }