/* 功能介绍页 — 统一排版与可读文字色 */

.page-features {
  --feat-text: #1e293b;
  --feat-text-body: #334155;
  --feat-text-muted: #475569;
  --feat-border: rgba(46, 134, 222, 0.2);
  --feat-card-bg: #ffffff;
  --feat-section-gap: 2.5rem;
}

.page-features .features-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2.5rem;
}

/* 页头 */
.page-features .features-hero {
  text-align: center;
  margin-bottom: var(--feat-section-gap);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--feat-border);
}

.page-features .features-page-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  color: var(--feat-text);
  letter-spacing: 0.02em;
}

.page-features .features-brand-headline {
  margin: 0;
  font-size: clamp(0.95rem, 2.5vw, 1.125rem);
  font-weight: 600;
  color: var(--blue);
  line-height: 1.5;
}

/* 通用区块 */
.page-features .features-section {
  margin-bottom: var(--feat-section-gap);
}

.page-features .section-title {
  margin: 0 0 1.25rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--feat-text);
  text-align: left;
  padding-left: 0.75rem;
  border-left: 4px solid var(--blue);
}

/* 视频区 */
.page-features .video-container {
  background: var(--feat-card-bg);
  border: 1px solid var(--feat-border);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 2px 12px rgba(30, 41, 59, 0.06);
}

.page-features .video-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #f1f5f9;
  border-radius: 10px;
  overflow: hidden;
  border: 1px dashed var(--feat-border);
}

.page-features .video-upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  cursor: pointer;
  padding: 1rem;
}

.page-features .video-upload-area:hover {
  background: #e8f2fc;
}

.page-features .video-icon {
  width: 72px;
  height: 72px;
  margin-bottom: 0.85rem;
}

.page-features .upload-text {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--feat-text);
}

.page-features .upload-hint {
  margin: 0;
  font-size: 0.875rem;
  color: var(--feat-text-muted);
  text-align: center;
  max-width: 28rem;
}

.page-features .video-player {
  position: absolute;
  inset: 0;
  background: #0f172a;
}

.page-features .feature-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-features .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.page-features .video-info {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #e2e8f0;
}

.page-features .video-info p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--feat-text-body);
  text-align: left;
}

/* 功能卡片网格 */
.page-features .features-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-features .feature-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  padding: 1.25rem 1.15rem;
  min-height: 100%;
  background: var(--feat-card-bg);
  border: 1px solid var(--feat-border);
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(30, 41, 59, 0.05);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.page-features .feature-card:hover {
  border-color: rgba(46, 134, 222, 0.4);
  box-shadow: 0 6px 20px rgba(30, 41, 59, 0.08);
}

.page-features .feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 0.75rem;
  flex-shrink: 0;
}

.page-features .feature-card--1 .feature-icon { color: #e85d4c; }
.page-features .feature-card--2 .feature-icon { color: #2e86de; }
.page-features .feature-card--3 .feature-icon { color: #f97316; }
.page-features .feature-card--4 .feature-icon { color: #10b981; }
.page-features .feature-card--5 .feature-icon { color: #8b5cf6; }
.page-features .feature-card--6 .feature-icon { color: #0abde3; }

.page-features .feature-card h4 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--feat-text);
}

.page-features .feature-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--feat-text-body);
}

/* 产品展示 */
.page-features .gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.page-features .gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  overflow: hidden;
}

.page-features .gallery-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 0.75rem;
  background: var(--feat-card-bg);
  border: 1px solid var(--feat-border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.page-features .gallery-placeholder:hover {
  border-color: var(--blue);
  background: #f8fbff;
}

.page-features .gallery-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 0.5rem;
}

.page-features .gallery-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--feat-text-body);
}

/* 底部 CTA */
.page-features .features-bottom {
  margin-top: 0.5rem;
  padding: 2rem 1.5rem;
  text-align: center;
  background: linear-gradient(135deg, #1677ff 0%, #0958d9 55%, #003a8c 100%);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(9, 88, 217, 0.25);
}

.page-features .btn-features-apply {
  display: inline-block;
  min-width: 220px;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: #0958d9;
  text-align: center;
  text-decoration: none;
  background: #ffffff;
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  transition: transform 0.15s, box-shadow 0.2s;
}

.page-features .btn-features-apply:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

.page-features .features-disclaimer {
  margin: 1.25rem 0 0;
  padding: 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  background: transparent;
  border-radius: 0;
}

/* 页脚 — 深色清晰 */
.page-features .site-footer {
  margin-top: 2rem;
  padding: 1.25rem 1rem 1.75rem;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--feat-text-muted);
  border-top: 1px solid #e2e8f0;
  background: #f8fafc;
}

.page-features .site-footer p {
  margin: 0;
  color: #475569;
}

@media (min-width: 600px) {
  .page-features .features-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-features .features-main {
    padding: 2rem 1.5rem 3rem;
  }

  .page-features .features-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.15rem;
  }

  .page-features .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 479px) {
  .page-features .gallery-grid {
    grid-template-columns: 1fr;
  }

  .page-features .section-title {
    font-size: 1.1rem;
  }
}