/* ==========================================================
   布料易官网 子页面共享样式 (pages.css)
   页面标题横幅 / 对比卡 / 图文交替块 / 产品卡 / 表单 / 视频页
   ========================================================== */

/* ==================== 页面标题横幅 ==================== */
.page-hero {
  background: var(--brand-gradient);
  padding: 56px 0;
  text-align: center;
  color: #fff;
}

.page-hero h1 {
  color: #fff;
  font-size: var(--fs-h1);
  font-weight: 700;
}

.page-hero p {
  color: rgba(255, 255, 255, .82);
  font-size: var(--fs-body);
  margin-top: 12px;
}

/* ==================== SaaS对比卡(introduce) ==================== */
.vs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: -36px;
  position: relative;
  z-index: 2;
}

.vs-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 32px;
  box-sizing: border-box;
}

.vs-card h3 {
  font-size: var(--fs-h3);
  margin-bottom: 16px;
}

.vs-card.plain h3 { color: var(--text-muted); }
.vs-card.brand {
  border: 2px solid var(--brand);
}

.vs-card.brand h3 { color: var(--brand); }

.vs-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.vs-card ul li {
  padding: 8px 0 8px 26px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  position: relative;
}

.vs-card.plain ul li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.vs-card.brand ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 700;
}

/* ==================== 图文交替块(introduce) ==================== */
.intro-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 36px 0;
}

.intro-item + .intro-item {
  border-top: 1px solid #eef1f7;
}

.intro-item h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  padding-left: 14px;
}

.intro-item h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--brand-gradient);
  border-radius: 2px;
}

.intro-item p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin: 0;
}

.intro-item .intro-img {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 16px;
  box-sizing: border-box;
  transition: all .3s ease;
}

.intro-item .intro-img:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.intro-item .intro-img img {
  width: 100%;
  border-radius: var(--radius-md);
  display: block;
}

.intro-item .intro-img.double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ==================== 产品卡片(product) ==================== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  text-align: center;
  padding: 36px 28px;
}

.product-card .p-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
}

.product-card h3 {
  margin: 0 0 10px;
}

/* ==================== 表单页(info) ==================== */
.lead-form-wrap {
  max-width: 460px;
  margin: 40px auto 64px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 36px 40px;
  box-sizing: border-box;
}

.lead-form-wrap .form-field {
  margin-bottom: 18px;
}

.lead-form-wrap .form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.lead-form-wrap .form-field input,
.lead-form-wrap .form-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 14px;
  border: 1px solid #dfe4ee;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-family);
  transition: border-color .2s;
  outline: none;
}

.lead-form-wrap .form-field input:focus,
.lead-form-wrap .form-field textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(56, 107, 243, .12);
}

.lead-form-wrap .form-field textarea {
  resize: vertical;
}

.lead-form-wrap .form-tip {
  font-size: 12px;
  color: var(--text-muted);
  margin: -6px 0 14px;
}

.lead-form-wrap .btn-primary {
  width: 100%;
  text-align: center;
  box-sizing: border-box;
}

.form-msg {
  margin-top: 12px;
  font-size: 14px;
  text-align: center;
}

/* ==================== 成功页(suc) ==================== */
.suc-box {
  text-align: center;
  padding: 80px 0;
}

.suc-box .suc-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: rgba(12, 163, 12, .12);
  color: var(--ok);
  font-size: 44px;
  line-height: 88px;
}

.suc-box h1 {
  font-size: var(--fs-h2);
  margin-bottom: 12px;
}

.suc-box p {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  margin-bottom: 32px;
}

/* ==================== 视频页(tovedio) ==================== */
.video-wrap {
  max-width: 960px;
  margin: 40px auto 64px;
}

/* 16:9 视频框: 不限定在 .video-wrap 内, 卡片等任意容器内也能正常约束视频尺寸 */
.video-frame {
  position: relative;
  padding-top: 56.25%;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.video-frame video,
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ==================== AI 能力卡(introduce) ==================== */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 44px;
}

.ai-grid .card {
  text-align: center;
  padding: 32px 22px;
}

.ai-grid .ai-icon {
  font-size: 40px;
  line-height: 1;
  margin-bottom: 12px;
}

.ai-grid .card h3 {
  margin: 0 0 8px;
}

@media (max-width: 1024px) {
  .ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .ai-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ==================== 子页 CTA ==================== */
.page-cta {
  text-align: center;
  padding: 56px 0 72px;
}

.page-cta h2 {
  font-size: var(--fs-h2);
  margin-bottom: 10px;
}

.page-cta p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
  .page-hero {
    padding: 40px 0;
  }

  .page-hero h1 {
    font-size: 26px;
  }

  .vs-grid {
    grid-template-columns: 1fr;
  }

  .intro-item {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 28px 0;
  }

  .intro-item .intro-img {
    order: 2;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .lead-form-wrap {
    padding: 28px 22px;
  }
}