/* =====================================================
   到可到对货 官网 - 首页专用样式
   ===================================================== */

/* ─── Hero 区 ─── */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 60%, #F8FAFC 100%);
  padding: 80px 0 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://dkddh.oss-cn-shenzhen.aliyuncs.com/website/images/hero-bg.png');
  background-image: image-set(
    url('https://dkddh.oss-cn-shenzhen.aliyuncs.com/website/images/hero-bg.webp') type('image/webp'),
    url('https://dkddh.oss-cn-shenzhen.aliyuncs.com/website/images/hero-bg.png') type('image/png')
  );
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(22,163,74,0.1);
  color: var(--color-success);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -1px;
}

.hero-title-accent {
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-trust {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-trust span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.hero-trust i {
  color: var(--color-success);
}

/* Hero 手机展示 */
.hero-visual {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 20px;
}

.hero-phone-wrap {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: -20px;
}

.hero-phone-main {
  width: 200px;
  z-index: 2;
  transform: rotate(-3deg);
}

.hero-phone-sub {
  width: 160px;
  z-index: 1;
  transform: rotate(4deg) translateY(20px);
  margin-left: -30px;
}

.hero-qr-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  margin-left: 10px;
}

.hero-qr-box img {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-md);
}

.hero-qr-box p {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.5;
}

/* ─── 数字统计 ─── */
.section-stats {
  padding: var(--spacing-3xl) 0;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.stat-item {
  background: #fff;
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  transition: background var(--transition-normal);
}

.stat-item:hover {
  background: var(--color-primary-bg);
}

.stat-number {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-plus, .stat-unit {
  font-size: 22px;
  font-weight: 600;
}

.stat-label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.stat-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ─── 双边团队协作 ─── */
.collab-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
  margin-bottom: 32px;
}

.collab-side {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.collab-side-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
}

.collab-sender .collab-side-title { color: var(--color-primary); }
.collab-receiver .collab-side-title { color: var(--color-success); }

.collab-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.collab-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.collab-step-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.collab-receiver .collab-step-icon {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.collab-step-role {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.collab-step-action {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.collab-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  align-self: stretch;
  gap: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.collab-share-box, .collab-reconcile-box {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  text-align: center;
  width: 132px;
  min-width: 132px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.collab-reconcile-box {
  background: var(--color-success);
}

.collab-share-box i, .collab-reconcile-box i {
  font-size: 24px;
  margin-bottom: 6px;
  display: block;
}

.collab-share-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.collab-share-code {
  font-size: var(--font-size-xs);
  opacity: 0.85;
  margin-top: 2px;
}

.collab-arrow-down {
  color: var(--color-text-muted);
  font-size: 20px;
  width: 132px;
  text-align: center;
  line-height: 1;
}

/* 对账闭环行 */
.collab-reconcile-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-success-bg));
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
}

.collab-reconcile-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  background: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
}

.collab-reconcile-step i {
  color: var(--color-success);
}

.collab-arrow-right {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ─── 发货单生命周期 ─── */
.lifecycle-track {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  padding: var(--spacing-xl) 0;
}

.lifecycle-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
}

.lifecycle-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-primary-light);
  transition: transform var(--transition-normal);
}

.lifecycle-dot-lock {
  background: var(--color-warning);
  border-color: var(--color-warning-bg);
}

.lifecycle-dot-done {
  background: var(--color-success);
  border-color: var(--color-success-light);
}

.lifecycle-step:hover .lifecycle-dot {
  transform: scale(1.3);
}

.lifecycle-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.lifecycle-lock-badge {
  position: absolute;
  top: -28px;
  background: var(--color-warning);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.lifecycle-line {
  flex: 1;
  min-width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
  margin-bottom: 24px;
}

/* ─── 功能模块网格 ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: var(--spacing-2xl);
}

.feature-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: var(--touch-target-min);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.feature-card-data {
  background: linear-gradient(135deg, #FAF5FF, #F5F3FF);
  border-color: #DDD6FE;
}

.feature-card-data:hover {
  border-color: var(--color-data);
}

.feature-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.feature-card-icon.blue { background: var(--color-primary-bg); color: var(--color-primary); }
.feature-card-icon.green { background: var(--color-success-bg); color: var(--color-success); }
.feature-card-icon.orange { background: var(--color-warning-bg); color: var(--color-warning); }
.feature-card-icon.sky { background: var(--color-security-bg); color: var(--color-security); }
.feature-card-icon.purple { background: var(--color-data-bg); color: var(--color-data); }

.feature-card-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.feature-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  min-height: 66px;
}

.feature-card-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  background: #F8FAFC;
  aspect-ratio: 16 / 9;
  height: auto;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin-top: auto;
}

.feature-card-img img {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  object-position: center;
  background: #F8FAFC;
  padding: 0;
  transition: transform var(--transition-slow);
  display: block;
}

.feature-card:hover .feature-card-img img {
  transform: scale(1.03);
}

.features-cta {
  text-align: center;
}

/* ─── 数据中心亮点 ─── */
.section-data-highlight {
  background: linear-gradient(135deg, #FAF5FF 0%, #EFF6FF 100%);
}

.data-highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: var(--spacing-2xl);
}

.data-highlight-card {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid #DDD6FE;
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.data-highlight-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.data-highlight-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-data-bg);
  color: var(--color-data);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto var(--spacing-md);
}

.data-highlight-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.data-highlight-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
  min-height: 72px;
}

.data-highlight-img {
  display: flex;
  justify-content: center;
  align-items: center;
  aspect-ratio: 16 / 9;
  width: 100%;
  margin-top: auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  background: #F8FAFC;
}

.data-highlight-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.data-highlight-cta {
  text-align: center;
}

/* ─── 安全保障卡片 ─── */
.security-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.security-card {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.security-card:hover {
  border-color: var(--color-security);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.security-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-security-bg);
  color: var(--color-security);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: var(--spacing-md);
}

.security-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.security-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  min-height: 72px;
}

.security-card-img {
  aspect-ratio: 16 / 9;
  width: 100%;
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  background: #F8FAFC;
}

.security-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.security-card-link {
  min-height: var(--touch-target-min);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-security);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
  margin-top: auto;
}

.security-card-link:hover {
  gap: 8px;
  color: var(--color-security);
}

/* ─── 适用行业 ─── */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
  display: block;
  min-height: var(--touch-target-min);
}

.industry-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.industry-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto var(--spacing-md);
}

.industry-card h3 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.industry-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ─── 底部转化区 ─── */
.section-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1565C0 100%);
  padding: var(--spacing-4xl) 0;
}

.cta-inner {
  text-align: center;
}

.cta-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.cta-subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--spacing-2xl);
}

.cta-qr-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.cta-qr-box {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.cta-qr-box img {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-md);
}

.cta-qr-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: 10px;
}

.cta-qr-tips {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cta-tip {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.9);
  font-weight: var(--font-weight-medium);
}

.cta-tip i {
  color: #86EFAC;
  font-size: 20px;
}

/* ─── 滚动入场动画 ─── */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: none;
}

/* ─── 响应式 ─── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .data-highlight-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-title { font-size: 36px; }
  .hero-visual { justify-content: center; }
  .hero-phone-main { width: 150px; }
  .hero-phone-sub { width: 120px; }
  .hero-qr-box { display: none; }

  .collab-flow { grid-template-columns: 1fr; }
  .collab-center { flex-direction: column; padding-top: 0; align-self: auto; justify-content: center; gap: 12px; width: 100%; }
  .collab-arrow-down { width: auto; }
  .collab-reconcile-row { flex-direction: column; align-items: flex-start; }
  .collab-arrow-right { transform: rotate(90deg); }

  .lifecycle-track { gap: 4px; }
  .lifecycle-line { min-width: 10px; }

  .features-grid { grid-template-columns: 1fr; }
  .data-highlight-grid { grid-template-columns: 1fr; }
  .security-cards { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr 1fr; }

  .cta-title { font-size: var(--font-size-3xl); }
  .cta-qr-wrap { flex-direction: column; gap: 24px; }
  .free-table { font-size: 14px; }
  .free-table-col { padding: 10px 8px; }

  /* 免费区块响应式 */
  .section-free-compare .section-tag.green {
    background: rgba(22, 163, 74, 0.1);
    color: var(--color-success);
  }
}

/* ═══════════════════════════════════════
   🎁 免费对比区块
   ═══════════════════════════════════════ */
.section-free-compare {
  background: linear-gradient(135deg, #F0FDF4 0%, #ECFDF5 100%);
}

.free-table-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.free-table {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.free-table-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1.5fr;
}

.free-table-header {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-md);
}

.free-table-header .free-table-col {
  border-bottom: none;
}

.free-table-header .free-table-label {
  background: #374151;
  color: #fff;
}

.free-table-header .free-table-old {
  background: #6B7280;
  color: #fff;
}

.free-table-header .free-table-new {
  background: var(--color-success);
  color: #fff;
}

.free-table-header .free-table-col i {
  margin-right: 6px;
}

.free-table-col {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.free-table-row:last-child .free-table-col {
  border-bottom: none;
}

.free-table-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  background: #F8FAFC;
}

.free-table-old {
  color: var(--color-text-secondary);
  background: #F9FAFB;
}

.free-table-new {
  color: var(--color-text-primary);
  background: #FFFFFF;
}

/* 隔行变色 */
.free-table-row:nth-child(even) .free-table-label {
  background: #F1F5F9;
}

.free-table-row:nth-child(even) .free-table-old {
  background: #F3F4F6;
}

.free-table-row:nth-child(even) .free-table-new {
  background: #F8FAFC;
}

/* 到可到对货列的轻微绿色点缀（悬停时，排除表头） */
.free-table-row:not(.free-table-header):hover .free-table-new {
  background: #F0FDF4;
}

.free-table-row:not(.free-table-header):nth-child(even):hover .free-table-new {
  background: #ECFDF5;
}

/* 「完全免费」文字用绿色突出 */
.free-price {
  color: var(--color-success);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.free-trust-note {
  text-align: center;
  margin-top: 24px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  border: 1px solid #D1FAE5;
  box-shadow: var(--shadow-sm);
}

.free-trust-note i {
  color: var(--color-success);
  margin-right: 6px;
}

.free-cta {
  text-align: center;
  margin-top: 28px;
}

/* CTA 底部信任声明 */
.cta-trust-note {
  text-align: center;
  margin-top: 24px;
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.8);
  line-height: var(--line-height-normal);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-trust-note i {
  margin-right: 6px;
}

.cta-trust-note strong {
  color: #fff;
}