/* ==========================================================================
   关于华那 专属样式
   ========================================================================== */

/* ===================== 公司简介 ===================== */
.about-intro {
  padding: var(--space-20) 0;
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-intro-text h2 {
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.about-intro-text .lead {
  font-size: var(--fs-md);
  color: var(--color-primary);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-6);
  padding-left: var(--space-4);
  border-left: 4px solid var(--color-primary);
}

.about-intro-text p {
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-4);
}

.about-intro-image {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background-color: #e5e7eb;
  box-shadow: var(--shadow-xl);
}

.about-intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.about-intro-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 30, 80, 0.3) 0%, rgba(0, 30, 80, 0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.about-intro-image .image-text {
  position: absolute;
  z-index: 2;
  text-align: center;
  padding: var(--space-6);
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.about-intro-image .image-text strong {
  display: block;
  font-size: 56px;
  font-weight: var(--fw-bold);
  line-height: 1;
  margin-bottom: var(--space-2);
  background: linear-gradient(135deg, #FF6B6B 0%, #FFFFFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-intro-image .image-text span {
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 2px;
}

@media (max-width: 991px) {
  .about-intro-grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

/* ===================== 数据统计 ===================== */
.about-stats {
  background: linear-gradient(135deg, var(--color-tech-blue-dark) 0%, var(--color-tech-blue) 100%);
  color: #fff;
  padding: var(--space-12) 0;
  position: relative;
  overflow: hidden;
}

.about-stats::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
}

.about-stats .container {
  position: relative;
  z-index: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  text-align: center;
}

.stat-item {
  padding: var(--space-6) var(--space-4);
  border-right: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-item:last-child {
  border-right: none;
}

.stat-num {
  display: block;
  font-size: 48px;
  font-weight: var(--fw-bold);
  line-height: 1;
  margin-bottom: var(--space-2);
  color: #fff;
}

.stat-num-suffix {
  font-size: 24px;
  color: #FF6B6B;
  margin-left: 4px;
}

.stat-label {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 1px;
}

@media (max-width: 767px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-num { font-size: 36px; }
}

/* ===================== 业务范围 ===================== */
.business-section {
  background: var(--color-bg-soft);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.business-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
}

.business-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
}

.business-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(230, 0, 0, 0.15);
  border-color: transparent;
}

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

.business-card > * {
  position: relative;
  z-index: 1;
  transition: color var(--transition-base);
}

.business-card:hover .business-icon,
.business-card:hover h4,
.business-card:hover p {
  color: #fff;
}

.business-card:hover .business-icon svg {
  color: #fff;
}

.business-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: all var(--transition-base);
}

.business-card:hover .business-icon {
  background: rgba(255, 255, 255, 0.15);
}

.business-icon svg {
  width: 32px;
  height: 32px;
  transition: color var(--transition-base);
}

.business-card h4 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.business-card p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 991px) {
  .business-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .business-grid { grid-template-columns: 1fr; }
}

/* ===================== 公司愿景 ===================== */
.vision-section {
  position: relative;
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #fff;
  overflow: hidden;
}

.vision-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(230, 0, 0, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 102, 204, 0.15) 0%, transparent 50%);
}

.vision-section .container {
  position: relative;
  z-index: 1;
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.vision-card {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  position: relative;
}

.vision-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
}

.vision-card:last-child::after {
  display: none;
}

.vision-num {
  font-size: 80px;
  font-weight: var(--fw-bold);
  background: linear-gradient(135deg, #FF6B6B 0%, #FFFFFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-3);
  font-family: Georgia, serif;
}

.vision-card h4 {
  color: #fff;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}

.vision-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

@media (max-width: 767px) {
  .vision-grid { grid-template-columns: 1fr; }
  .vision-card::after { display: none; }
  .vision-num { font-size: 64px; }
}

/* ===================== 发展历程 ===================== */
.timeline-section {
  background: #fff;
}

.timeline {
  position: relative;
  padding: var(--space-12) 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(to right,
    transparent 0%,
    var(--color-primary) 8%,
    var(--color-primary) 92%,
    transparent 100%);
  transform: translateY(-50%);
  z-index: 0;
}

.timeline-item {
  position: relative;
  padding: 0 var(--space-3);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 320px;
  justify-content: center;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  background: #fff;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  z-index: 3;
  transform: translate(-50%, -50%);
}

.timeline-year {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: block;
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  z-index: 2;
  white-space: nowrap;
  background: #fff;
  padding: 0 var(--space-2);
}

.timeline-item:nth-child(odd) .timeline-year {
  top: calc(50% + 24px);
  margin-top: 0;
}

.timeline-item:nth-child(even) .timeline-year {
  bottom: calc(50% + 24px);
  top: auto;
  margin-top: 0;
}

.timeline-content {
  background: var(--color-bg-soft);
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  box-shadow: inset 0 0 0 1px var(--color-border-light);
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  z-index: 1;
}.timeline-item:nth-child(odd) .timeline-content {
  bottom: calc(50% + 24px);
}

.timeline-item:nth-child(even) .timeline-content {
  top: calc(50% + 24px);
}

.timeline-content h4 {
  font-size: var(--fs-sm);
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-weight: var(--fw-semibold);
}

.timeline-content p {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

@media (max-width: 991px) {
  .timeline { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); padding: var(--space-6) 0; }
  .timeline::before { display: none; }
  .timeline-item { min-height: auto; }
  .timeline-item::before { position: static; transform: none; display: block; margin: 0 auto var(--space-2); }
  .timeline-year { position: static; transform: none; margin-bottom: 0; background: transparent; }
  .timeline-content { position: static; border: 1px solid var(--color-border-light); box-shadow: none; }
}

@media (max-width: 600px) {
  .timeline { grid-template-columns: 1fr; }
}

/* ===================== 联系我们 ===================== */
.contact-section {
  background: var(--color-bg-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-8);
}

.contact-info {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.contact-info h3 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.contact-info > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact-list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-list-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.contact-list-icon svg {
  width: 22px;
  height: 22px;
}

.contact-list-content {
  flex: 1;
}

.contact-list-content .label {
  display: block;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-list-content .value {
  display: block;
  font-size: var(--fs-md);
  color: var(--color-text);
  font-weight: var(--fw-medium);
  line-height: 1.5;
}

.contact-list-content .value.large {
  font-size: var(--fs-xl);
  color: var(--color-primary);
  font-weight: var(--fw-bold);
}

.contact-form {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.contact-form h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-5);
  color: var(--color-text);
}

.form-group {
  margin-bottom: var(--space-4);
}

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

.form-group label .required {
  color: var(--color-primary);
  margin-left: 2px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  font-size: var(--fs-sm);
  color: var(--color-text);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: #fff;
  box-shadow: 0 0 0 3px rgba(230, 0, 0, 0.08);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
  font-family: inherit;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 991px) {
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}
/* ===================== 业务领域 ===================== */
.service-process {
  background-color: var(--color-bg-soft);
  position: relative;
}

.business-domains-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.business-domain-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  position: relative;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  overflow: hidden;
}

.business-domain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(to right, var(--color-primary) 0%, var(--color-tech-blue) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.business-domain-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.business-domain-card:hover::before {
  transform: scaleX(1);
}

.business-domain-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px dashed var(--color-border);
  flex-wrap: nowrap;
}

.business-domain-num {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(230, 0, 0, 0.2);
  font-feature-settings: 'tnum';
}

.business-domain-head h3 {
  font-size: var(--fs-xl);
  color: var(--color-text);
  margin-bottom: 2px;
  font-weight: var(--fw-bold);
  white-space: nowrap;
  line-height: 1.3;
}

.business-domain-title-wrap {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.business-domain-tag {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  letter-spacing: 1.5px;
  margin: 0;
  font-weight: var(--fw-medium);
  white-space: nowrap;
}

.business-domain-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.business-domain-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
}

.business-domain-list li:last-child {
  border-bottom: none;
}

.business-domain-list li:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.business-domain-list .dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(230, 0, 0, 0.1);
}

@media (max-width: 991px) {
  .business-domains-grid { grid-template-columns: 1fr; gap: var(--space-5); }
  .business-domain-head { flex-wrap: wrap; }
  .business-domain-head h3 { white-space: normal; }
  .business-domain-tag { white-space: normal; }
  .qualifications-grid { grid-template-columns: repeat(3, 1fr); }
}

/* 企业资质网格：约束卡片宽度，避免竖版证书图片被撑满整行导致过大 */
.qualifications-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-5);
}

@media (max-width: 767px) {
  .qualifications-grid { grid-template-columns: repeat(2, 1fr); }
}