/* ============================================
   Components - 通用组件样式
   ============================================ */

/* ===== 功能卡片 ===== */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* 顶部装饰条 */
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-cyan-bar);
  opacity: 0.6;
  transition: opacity var(--transition-base);
}

/* 底部光效线 */
.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  transition: width var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--card-cyan-border);
  box-shadow: var(--card-cyan-glow);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover::after {
  width: 80%;
}

/* 多色卡片变体 */
.feature-card--cyan {
  --card-color: var(--card-cyan-color);
  --card-bg: var(--card-cyan-bg);
  --card-border: var(--card-cyan-border);
  --card-glow: var(--card-cyan-glow);
}
.feature-card--cyan::before { background: var(--card-cyan-bar); }
.feature-card--cyan:hover { border-color: var(--card-cyan-border); box-shadow: var(--card-cyan-glow); }
.feature-card--cyan .feature-card__icon { background: var(--card-cyan-bg); border-color: var(--card-cyan-border); }
.feature-card--cyan .feature-card__icon svg { stroke: var(--card-cyan-color); }
.feature-card--cyan .feature-card__list-item::before { background: var(--card-cyan-color); }
.feature-card--cyan:hover .feature-card__icon { background: rgba(37, 99, 235, 0.2); box-shadow: 0 0 20px rgba(37, 99, 235, 0.3); }

.feature-card--blue {
  --card-color: var(--card-blue-color);
  --card-bg: var(--card-blue-bg);
  --card-border: var(--card-blue-border);
  --card-glow: var(--card-blue-glow);
}
.feature-card--blue::before { background: var(--card-blue-bar); }
.feature-card--blue:hover { border-color: var(--card-blue-border); box-shadow: var(--card-blue-glow); }
.feature-card--blue .feature-card__icon { background: var(--card-blue-bg); border-color: var(--card-blue-border); }
.feature-card--blue .feature-card__icon svg { stroke: var(--card-blue-color); }
.feature-card--blue .feature-card__list-item::before { background: var(--card-blue-color); }
.feature-card--blue:hover .feature-card__icon { background: rgba(37, 99, 235, 0.2); box-shadow: 0 0 20px rgba(37, 99, 235, 0.3); }

.feature-card--purple {
  --card-color: var(--card-purple-color);
  --card-bg: var(--card-purple-bg);
  --card-border: var(--card-purple-border);
  --card-glow: var(--card-purple-glow);
}
.feature-card--purple::before { background: var(--card-purple-bar); }
.feature-card--purple:hover { border-color: var(--card-purple-border); box-shadow: var(--card-purple-glow); }
.feature-card--purple .feature-card__icon { background: var(--card-purple-bg); border-color: var(--card-purple-border); }
.feature-card--purple .feature-card__icon svg { stroke: var(--card-purple-color); }
.feature-card--purple .feature-card__list-item::before { background: var(--card-purple-color); }
.feature-card--purple:hover .feature-card__icon { background: rgba(124, 58, 237, 0.2); box-shadow: 0 0 20px rgba(124, 58, 237, 0.3); }

.feature-card--green {
  --card-color: var(--card-green-color);
  --card-bg: var(--card-green-bg);
  --card-border: var(--card-green-border);
  --card-glow: var(--card-green-glow);
}
.feature-card--green::before { background: var(--card-green-bar); }
.feature-card--green:hover { border-color: var(--card-green-border); box-shadow: var(--card-green-glow); }
.feature-card--green .feature-card__icon { background: var(--card-green-bg); border-color: var(--card-green-border); }
.feature-card--green .feature-card__icon svg { stroke: var(--card-green-color); }
.feature-card--green .feature-card__list-item::before { background: var(--card-green-color); }
.feature-card--green:hover .feature-card__icon { background: rgba(0, 255, 136, 0.2); box-shadow: 0 0 20px rgba(0, 255, 136, 0.3); }

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: all var(--transition-base);
}

.feature-card:hover .feature-card__icon {
  background: rgba(37, 99, 235, 0.2);
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
}

.feature-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.feature-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.feature-card__list {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.feature-card__list-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.feature-card__list-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* ===== 统计数字 ===== */
.stat-item {
  text-align: center;
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.stat-suffix {
  font-size: var(--text-3xl);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== 对比卡片 ===== */
.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.compare-card--bad {
  border-color: rgba(255, 51, 102, 0.2);
}

.compare-card--good {
  border-color: var(--border-primary);
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.1);
}

.compare-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.compare-card__title-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
}

.compare-card--bad .compare-card__title-icon {
  background: rgba(255, 51, 102, 0.15);
  color: var(--color-error);
}

.compare-card--good .compare-card__title-icon {
  background: rgba(0, 255, 136, 0.15);
  color: var(--color-success);
}

.compare-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.compare-card__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--text-secondary);
}

.compare-card__list-item .icon-x {
  color: var(--color-error);
  flex-shrink: 0;
  font-weight: 700;
}

.compare-card__list-item .icon-check {
  color: var(--color-success);
  flex-shrink: 0;
  font-weight: 700;
}

/* ===== 行业选项卡 ===== */
.tabs {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.tab {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.tab:hover {
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.tab.active {
  color: var(--text-inverse);
  background: var(--gradient-primary);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.22);
}

/* ===== Logo 墙 ===== */
.logo-wall {
  overflow: hidden;
  position: relative;
  padding: var(--space-6) 0;
}

.logo-wall::before,
.logo-wall::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}

.logo-wall::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-primary) 0%, transparent 100%);
}

.logo-wall::after {
  right: 0;
  background: linear-gradient(270deg, var(--bg-primary) 0%, transparent 100%);
}

.logo-wall__track {
  display: flex;
  gap: var(--space-12);
  animation: scroll 30s linear infinite;
  width: max-content;
}

.logo-wall__item {
  width: 160px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-tertiary);
  transition: all var(--transition-base);
  flex-shrink: 0;
  filter: grayscale(1);
  opacity: 0.6;
}

.logo-wall__item:hover {
  filter: grayscale(0);
  opacity: 1;
  color: var(--color-primary);
  border-color: var(--border-primary);
  transform: translateY(-2px);
}

@keyframes scroll {
  to {
    transform: translateX(-50%);
  }
}

/* ===== 时间轴 ===== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg,
    transparent 0%,
    var(--border-primary) 10%,
    var(--border-primary) 90%,
    transparent 100%);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 var(--space-8) var(--space-12) 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding: 0 0 var(--space-12) var(--space-8);
}

.timeline-item__dot {
  position: absolute;
  top: var(--space-1);
  right: -8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary-glow);
  border: 3px solid var(--bg-primary);
  z-index: 1;
}

.timeline-item:nth-child(even) .timeline-item__dot {
  left: -8px;
  right: auto;
}

.timeline-item__year {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.timeline-item__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.timeline-item__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ===== 案例卡片 ===== */
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--glow-primary);
}

.case-card__image {
  width: 100%;
  height: 200px;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.case-card__image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
}

.case-card__image-text {
  position: relative;
  z-index: 1;
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--text-tertiary);
  opacity: 0.5;
}

.case-card__body {
  padding: var(--space-6);
}

.case-card__tag {
  display: inline-block;
  padding: 2px var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.case-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.case-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.case-card__link {
  font-size: var(--text-sm);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--transition-fast);
}

.case-card:hover .case-card__link {
  gap: var(--space-2);
}

/* ===== 新闻卡片 ===== */
.news-card {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-6);
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.news-card:hover {
  border-color: var(--border-primary);
  background: var(--bg-tertiary);
  transform: translateX(4px);
}

.news-card__date {
  flex-shrink: 0;
  width: 70px;
  text-align: center;
  padding: var(--space-2);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-secondary);
}

.news-card__date-day {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.news-card__date-month {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.news-card__content {
  flex: 1;
  min-width: 0;
}

.news-card__tag {
  display: inline-block;
  padding: 2px var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

.news-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

.news-card:hover .news-card__title {
  color: var(--color-primary);
}

.news-card__excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 表单 ===== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(255, 51, 102, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  display: none;
}

.form-error.visible {
  display: block;
}

/* ===== 模态框 ===== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal.active {
  display: flex;
}

.modal__content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: var(--text-xl);
  transition: all var(--transition-fast);
  z-index: 1;
}

.modal__close:hover {
  background: var(--color-error);
  color: white;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  align-items: center;
  margin-top: var(--space-10);
}

.pagination__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination__btn:hover {
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.pagination__btn.active {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  border-color: transparent;
}

.pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== 团队成员卡片 ===== */
.team-card {
  text-align: center;
}

.team-card__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--space-4);
  background: var(--gradient-card);
  border: 2px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-4xl);
  color: var(--text-tertiary);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.team-card:hover .team-card__avatar {
  border-color: var(--color-primary);
  box-shadow: var(--glow-primary);
}

.team-card__name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.team-card__role {
  font-size: var(--text-sm);
  color: var(--color-primary);
}

/* ===== 资质证书 ===== */
.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
}

.cert-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--glow-primary);
  transform: translateY(-4px);
}

.cert-card__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-lg);
}

.cert-card__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

/* ===== 解决方案布局 ===== */
.solution-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
  margin-bottom: var(--space-20);
}

.solution-block__image {
  background: var(--gradient-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.solution-block__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
}

.solution-block__image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(37, 99, 235, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, rgba(124, 58, 237, 0.1) 0%, transparent 60%);
}

.solution-block__content h3 {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.solution-block__content p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.solution-block__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.solution-block__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.solution-block__feature-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 700;
}

.solution-block__feature-text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

@media (min-width: 768px) {
  .solution-block {
    grid-template-columns: 1fr 1fr;
  }

  .solution-block--reverse .solution-block__image {
    order: 2;
  }
}

/* ===== 筛选标签 ===== */
.filter-tags {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-10);
}

.filter-tag {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-tag:hover {
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.filter-tag.active {
  color: var(--text-inverse);
  background: var(--gradient-primary);
  border-color: transparent;
}

/* ===== 侧边栏推荐 ===== */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.sidebar-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-secondary);
}

.sidebar-news-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sidebar-news-item:last-child {
  border-bottom: none;
}

.sidebar-news-item:hover .sidebar-news-item__title {
  color: var(--color-primary);
}

.sidebar-news-item__num {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-tertiary);
  line-height: 1;
  flex-shrink: 0;
  width: 30px;
}

.sidebar-news-item:nth-child(1) .sidebar-news-item__num,
.sidebar-news-item:nth-child(2) .sidebar-news-item__num,
.sidebar-news-item:nth-child(3) .sidebar-news-item__num {
  color: var(--color-primary);
}

.sidebar-news-item__title {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
  transition: color var(--transition-fast);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 标签云 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag-cloud__item {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-cloud__item:hover {
  color: var(--color-primary);
  border-color: var(--border-primary);
}

/* ===== 联系信息卡片 ===== */
.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-item__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-info-item__label {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-1);
}

.contact-info-item__value {
  font-size: var(--text-base);
  color: var(--text-primary);
  font-weight: 500;
}

/* ===== 地图占位 ===== */
.map-placeholder {
  width: 100%;
  height: 360px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.map-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.map-placeholder__pin {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.map-placeholder__pin-icon {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  animation: pulse 2s ease-in-out infinite;
}

.map-placeholder__pin-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
}

/* ===== 交替背景板块 ===== */
.section--alt {
  background: var(--bg-primary);
}

.section--alt-2 {
  background: var(--bg-alt-2);
}

/* ===== 增强统计区 ===== */
.stat-item {
  position: relative;
}

.stat-item__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-cyan-bg);
  border: 1px solid var(--card-cyan-border);
  transition: all var(--transition-base);
}

.stat-item:nth-child(2) .stat-item__icon {
  background: var(--card-blue-bg);
  border-color: var(--card-blue-border);
}

.stat-item:nth-child(3) .stat-item__icon {
  background: var(--card-purple-bg);
  border-color: var(--card-purple-border);
}

.stat-item:nth-child(4) .stat-item__icon {
  background: var(--card-green-bg);
  border-color: var(--card-green-border);
}

.stat-item:hover .stat-item__icon {
  transform: scale(1.1);
}

/* ===== FAQ 手风琴 ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: var(--border-primary);
}

.faq-item.active {
  border-color: var(--border-glow);
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.1);
}

.faq-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}

.faq-item__header:hover {
  background: rgba(37, 99, 235, 0.03);
}

.faq-item__question {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  padding-right: var(--space-4);
}

.faq-item__icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-item__icon {
  transform: rotate(180deg);
}

.faq-item__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item.active .faq-item__body {
  max-height: 300px;
}

.faq-item__answer {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ===== 客户评价 ===== */
.testimonials {
  position: relative;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: var(--space-6);
  transition: transform var(--transition-slow);
}

.testimonial-card {
  flex: 0 0 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  text-align: center;
  position: relative;
}

.testimonial-card__quote {
  font-size: var(--text-lg);
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-inverse);
}

.testimonial-card__name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial-card__role {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.testimonial-dots {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  margin-top: var(--space-6);
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.testimonial-dot.active {
  width: 24px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
}

/* ===== Toast 通知 ===== */
.toast-container {
  position: fixed;
  top: calc(var(--nav-height) + var(--space-4));
  right: var(--space-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  max-width: 400px;
  transform: translateX(120%);
  opacity: 0;
  transition: all var(--transition-base);
  pointer-events: auto;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast--success {
  border-left: 3px solid var(--toast-success);
}

.toast--error {
  border-left: 3px solid var(--toast-error);
}

.toast--warning {
  border-left: 3px solid var(--toast-warning);
}

.toast--info {
  border-left: 3px solid var(--toast-info);
}

.toast__icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.toast--success .toast__icon { color: var(--toast-success); }
.toast--error .toast__icon { color: var(--toast-error); }
.toast--warning .toast__icon { color: var(--toast-warning); }
.toast--info .toast__icon { color: var(--toast-info); }

.toast__message {
  font-size: var(--text-sm);
  color: var(--text-primary);
  line-height: var(--leading-normal);
}

.toast__close {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.toast__close:hover {
  color: var(--text-primary);
}

/* ===== 滚动进度条 ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: var(--progress-height);
  background: var(--gradient-primary);
  z-index: 1001;
  width: 0;
  transition: width 50ms linear;
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.28);
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  border-color: transparent;
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.22);
  transform: translateY(-2px);
}

/* ===== QR码演示区 ===== */
.qr-demo {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
}

.qr-demo__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
}

.qr-demo__code {
  width: 200px;
  height: 200px;
  background: white;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  position: relative;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.10);
}

.qr-demo__scan-line {
  position: absolute;
  left: var(--space-4);
  right: var(--space-4);
  height: 2px;
  background: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary);
  animation: scanLine 2s ease-in-out infinite;
}

@keyframes scanLine {
  0%, 100% { top: var(--space-4); }
  50% { top: calc(100% - var(--space-4)); }
}

@media (min-width: 768px) {
  .qr-demo {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== 按钮加载状态 ===== */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: btnSpin 0.6s linear infinite;
}

@keyframes btnSpin {
  to { transform: rotate(360deg); }
}

/* ===== Focus 可见性增强 ===== */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== 移动端Toast位置 ===== */
@media (max-width: 480px) {
  .toast-container {
    right: var(--space-3);
    left: var(--space-3);
    top: calc(var(--nav-height-mobile) + var(--space-3));
  }

  .toast {
    min-width: auto;
    max-width: none;
  }

  .back-to-top {
    bottom: var(--space-4);
    right: var(--space-3);
    width: 40px;
    height: 40px;
  }
}

/* ============================================
   核心技术优势板块
   ============================================ */
.tech-advantage {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.tech-advantage__card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.tech-advantage__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tech-advantage__card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.12);
}

.tech-advantage__card:hover::before {
  opacity: 1;
}

.tech-advantage__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(37, 99, 235, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.3);
}

.tech-advantage__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.tech-advantage__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-3);
}

.tech-advantage__metric {
  font-size: var(--text-2xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-1);
}

.tech-advantage__metric-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   产品能力矩阵板块
   ============================================ */
.product-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.product-matrix__card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.product-matrix__card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.product-matrix__card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  background: var(--bg-tertiary);
}

.product-matrix__card:hover::after {
  transform: scaleX(1);
}

.product-matrix__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.product-matrix__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.product-matrix__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.product-matrix__tag {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-top: var(--space-3);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

/* ============================================
   核心应用场景网格
   ============================================ */
.app-scenarios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.app-scenario {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--transition-base);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.app-scenario:hover {
  border-color: var(--border-glow);
  background: var(--bg-tertiary);
  transform: translateY(-3px);
}

.app-scenario__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(124, 58, 237, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.app-scenario__content {
  flex: 1;
}

.app-scenario__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.app-scenario__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   服务流程板块
   ============================================ */
.service-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  position: relative;
}

.service-flow::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg,
    rgba(37, 99, 235, 0.1),
    rgba(37, 99, 235, 0.25),
    rgba(37, 99, 235, 0.25),
    rgba(124, 58, 237, 0.1));
  z-index: 0;
}

.service-flow__step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.service-flow__num {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 2px solid var(--color-primary);
  box-shadow: 0 0 0 6px var(--bg-primary), 0 4px 20px rgba(37, 99, 235, 0.2);
  transition: all var(--transition-base);
}

.service-flow__step:hover .service-flow__num {
  transform: scale(1.1);
  box-shadow: 0 0 0 6px var(--bg-primary), 0 6px 30px rgba(37, 99, 235, 0.22);
}

.service-flow__num-text {
  font-size: var(--text-2xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.service-flow__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.service-flow__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  padding: 0 var(--space-2);
}

.service-flow__time {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-top: var(--space-2);
}

/* ============================================
   权威认证与技术生态板块
   ============================================ */
.cert-ecosystem {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.cert-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.cert-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.cert-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-tertiary);
}

.cert-item__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: rgba(37, 99, 235, 0.1);
}

.cert-item__text {
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: 600;
}

.cert-item__sub {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.ecosystem-partners {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.ecosystem-partner {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.ecosystem-partner:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.ecosystem-partner__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* ============================================
   浮动在线咨询按钮
   ============================================ */
.floating-consult {
  position: fixed;
  right: var(--space-5);
  bottom: 100px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.floating-consult__btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  text-decoration: none;
}

.floating-consult__btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 99, 235, 0.22);
}

.floating-consult__btn:hover svg {
  color: #fff;
}

.floating-consult__btn svg {
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.floating-consult__label {
  position: absolute;
  right: 62px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: var(--bg-card);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.floating-consult__btn:hover .floating-consult__label {
  opacity: 1;
}

.floating-consult__pulse {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #FF4444;
  border: 2px solid var(--bg-primary);
}

.floating-consult__pulse::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #FF4444;
  animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* ============================================
   增强Logo墙
   ============================================ */
.logo-wall__item {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-tertiary);
  transition: color var(--transition-base);
  white-space: nowrap;
}

.logo-wall__item:hover {
  color: var(--color-primary);
}

/* ============================================
   响应式适配
   ============================================ */
@media (max-width: 1024px) {
  .tech-advantage { grid-template-columns: repeat(2, 1fr); }
  .product-matrix { grid-template-columns: repeat(2, 1fr); }
  .app-scenarios { grid-template-columns: repeat(2, 1fr); }
  .cert-ecosystem { grid-template-columns: 1fr; }
  .cert-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .tech-advantage { grid-template-columns: 1fr; }
  .product-matrix { grid-template-columns: 1fr; }
  .app-scenarios { grid-template-columns: 1fr; }
  .service-flow { grid-template-columns: repeat(2, 1fr); }
  .service-flow::before { display: none; }
  .cert-list { grid-template-columns: 1fr; }
  .floating-consult { right: var(--space-3); bottom: 80px; }
  .floating-consult__btn { width: 44px; height: 44px; }
}

@media (max-width: 480px) {
  .service-flow { grid-template-columns: 1fr; }
}