/* ============ 页面 Banner ============ */
.page-banner {
  background: linear-gradient(135deg, #1a3a5c 0%, #2c5f8d 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.page-banner h1 { font-size: 34px; margin-bottom: 12px; position: relative; }
.page-banner p { color: #c8ddf0; font-size: 15px; position: relative; }

/* ============ 面包屑 ============ */
.breadcrumb {
  background: #fff;
  border-bottom: 1px solid #eef2f7;
  padding: 12px 0;
  font-size: 13px;
  color: #7a8fa6;
}
.breadcrumb a { color: #5a6f85; }
.breadcrumb a:hover { color: #1a73e8; }
.breadcrumb span { margin: 0 8px; color: #c5d2e0; }

/* ============ 主体 ============ */
.about-main { padding: 50px 0 60px; background: #f7f9fc; }

/* 通用 Section */
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 26px; color: #1a3a5c; margin-bottom: 10px; }
.section-title p { color: #7a8fa6; font-size: 14px; }
.section-title h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: #ff6b35;
  margin: 14px auto 0;
  border-radius: 2px;
}

/* ============ 版块1：NAP 核心信息 ============ */
.nap-hero { margin-bottom: 50px; }
.nap-hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.nap-card {
  background: #fff;
  border-radius: 14px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid transparent;
}
.nap-card:hover {
  border-color: #1a73e8;
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(26,115,232,0.1);
}
.nap-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, #1a73e8, #4a9eff);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}
.nap-card h3 {
  font-size: 16px;
  color: #1a3a5c;
  margin-bottom: 12px;
}
.nap-phone {
  display: block;
  font-size: 22px;
  color: #e63946;
  font-weight: 700;
  margin-bottom: 6px;
}
.nap-wechat {
  font-size: 18px;
  color: #1a3a5c;
  font-weight: 600;
  margin-bottom: 6px;
}
.nap-address {
  font-size: 14px;
  color: #1a3a5c;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.6;
}
.nap-note {
  font-size: 12px;
  color: #a0b0c2;
}

/* ============ 版块2：详细联系方式 ============ */
.contact-detail { margin-bottom: 50px; }
.contact-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.detail-card {
  background: #fff;
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.detail-card h3 {
  font-size: 17px;
  color: #1a3a5c;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f0f4f9;
}
.detail-card ul { list-style: none; }
.detail-card li {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  border-bottom: 1px dashed #eef2f7;
}
.detail-card li:last-child { border-bottom: none; }
.detail-card li span { color: #7a8fa6; flex-shrink: 0; }
.detail-card li strong {
  color: #1a3a5c;
  text-align: right;
  font-weight: 600;
  line-height: 1.5;
  word-break: break-all;
}
.detail-card li strong a { color: #e63946; }
.detail-nav-btn {
  display: block;
  margin-top: 16px;
  text-align: center;
  padding: 10px;
  background: #1a73e8;
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  transition: background 0.2s;
}
.detail-nav-btn:hover { background: #1558b0; }

/* ============ 版块3：支付方式 ============ */
.payment-section {
  background: #fff;
  border-radius: 16px;
  padding: 50px 40px;
  margin-bottom: 50px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.payment-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 22px;
  margin-bottom: 50px;
}
.payment-card {
  background: #f7f9fc;
  border-radius: 14px;
  padding: 26px;
  border: 1px solid #eef2f7;
  transition: all 0.3s;
}
.payment-card:hover {
  border-color: #1a73e8;
  box-shadow: 0 8px 20px rgba(26,115,232,0.08);
}
.payment-bank {
  background: linear-gradient(135deg, #f0f6ff, #e8f0fe);
  border-color: #c5d9f0;
}
.payment-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 2px solid #e0e8f0;
  flex-wrap: wrap;
}
.payment-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #1a73e8, #4a9eff);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.payment-header h3 {
  font-size: 16px;
  color: #1a3a5c;
  flex: 1;
}
.payment-tag {
  background: #ff6b35;
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
  white-space: nowrap;
}

.payment-info { list-style: none; }
.payment-info li {
  padding: 9px 0;
  font-size: 13px;
  border-bottom: 1px dashed #e0e8f0;
}
.payment-info li:last-child { border-bottom: none; }
.payment-info li span {
  display: block;
  color: #7a8fa6;
  font-size: 12px;
  margin-bottom: 4px;
}
.payment-info li strong {
  color: #1a3a5c;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.5;
  word-break: break-all;
}
.account-number {
  color: #e63946 !important;
  font-family: 'Courier New', monospace;
  letter-spacing: 0.5px;
  font-size: 15px !important;
}

.payment-tip {
  margin-top: 16px;
  padding: 12px 14px;
  background: #fff8f0;
  border-left: 3px solid #ff6b35;
  border-radius: 0 6px 6px 0;
  font-size: 12px;
  color: #8a5a2a;
  line-height: 1.7;
}

/* 支付二维码 */
.payment-qr-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}
.payment-qr-item {
  text-align: center;
}
.qr-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 120px;
  margin: 0 auto 8px;
  background: #fff;
  border: 1px dashed #c5d2e0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #a0b0c2;
}
.payment-qr-item p {
  font-size: 12px;
  color: #5a6f85;
}

/* 支付流程 */
.payment-flow h3 {
  font-size: 20px;
  color: #1a3a5c;
  text-align: center;
  margin-bottom: 30px;
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.flow-step {
  background: #f7f9fc;
  border-radius: 12px;
  padding: 22px 16px;
  text-align: center;
  position: relative;
  transition: all 0.3s;
}
.flow-step:hover {
  background: #e8f0fe;
  transform: translateY(-4px);
}
.flow-num {
  width: 36px;
  height: 36px;
  background: #1a73e8;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  margin: 0 auto 12px;
}
.flow-body h4 {
  font-size: 14px;
  color: #1a3a5c;
  margin-bottom: 8px;
}
.flow-body p {
  font-size: 12px;
  color: #5a6f85;
  line-height: 1.6;
}

/* ============ 版块4：业务合作 ============ */
.cooperation-section {
  background: #fff;
  border-radius: 16px;
  padding: 50px 40px;
  margin-bottom: 50px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.cooperation-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 50px;
}
.coop-card {
  background: #f7f9fc;
  border-radius: 14px;
  padding: 28px 24px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid transparent;
}
.coop-card:hover {
  background: #fff;
  border-color: #1a73e8;
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(26,115,232,0.1);
}
.coop-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, #1a73e8, #4a9eff);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}
.coop-card h3 {
  font-size: 17px;
  color: #1a3a5c;
  margin-bottom: 12px;
}
.coop-card p {
  font-size: 14px;
  color: #5a6f85;
  line-height: 1.8;
}

/* 合作流程 */
.coop-flow-title {
  font-size: 20px;
  color: #1a3a5c;
  text-align: center;
  margin-bottom: 30px;
}
.coop-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.coop-step {
  background: #f7f9fc;
  border-radius: 12px;
  padding: 24px 20px;
  border-top: 4px solid #1a73e8;
  transition: all 0.3s;
}
.coop-step:hover {
  background: #fff;
  box-shadow: 0 8px 20px rgba(26,115,232,0.1);
  transform: translateY(-4px);
}
.coop-num {
  font-size: 24px;
  font-weight: 700;
  color: #c5d9f0;
  margin-bottom: 10px;
  line-height: 1;
}
.coop-step h4 {
  font-size: 15px;
  color: #1a3a5c;
  margin-bottom: 8px;
}
.coop-step p {
  font-size: 13px;
  color: #5a6f85;
  line-height: 1.7;
}

/* 合作联系 */
.coop-contact {
  background: linear-gradient(135deg, #1a3a5c, #2c5f8d);
  border-radius: 14px;
  padding: 30px;
  color: #fff;
  text-align: center;
}
.coop-contact h3 {
  font-size: 18px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.coop-contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.coop-contact-item {
  padding: 10px;
}
.coop-contact-item span {
  display: block;
  font-size: 12px;
  color: #a8d4ff;
  margin-bottom: 8px;
}
.coop-contact-item strong {
  font-size: 15px;
  color: #fff;
  font-weight: 600;
  word-break: break-all;
}
.coop-contact-item strong a { color: #ffd166; }

/* ============ 版块5：不同场景 ============ */
.scene-section { padding: 0 10px; }
.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.scene-item {
  background: #fff;
  border-radius: 14px;
  padding: 26px;
  border-left: 4px solid #ff6b35;
  transition: all 0.3s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}
.scene-item:hover {
  transform: translateX(6px);
  box-shadow: 0 8px 20px rgba(26,115,232,0.1);
}
.scene-tag {
  display: inline-block;
  background: #e8f0fe;
  color: #1a73e8;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.scene-item h4 {
  font-size: 16px;
  color: #1a3a5c;
  margin-bottom: 8px;
}
.scene-item p {
  font-size: 14px;
  color: #5a6f85;
  line-height: 1.8;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .nap-hero-grid { grid-template-columns: 1fr; }
  .contact-detail-grid { grid-template-columns: 1fr; }
  .payment-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: repeat(3, 1fr); }
  .cooperation-types { grid-template-columns: 1fr; }
  .coop-flow { grid-template-columns: repeat(2, 1fr); }
  .coop-contact-grid { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 768px) {
  .page-banner h1 { font-size: 24px; }
  .payment-section, .cooperation-section { padding: 30px 20px; }
  .flow-steps { grid-template-columns: 1fr; }
  .coop-flow { grid-template-columns: 1fr; }
  .scene-grid { grid-template-columns: 1fr; }
  .payment-qr-wrap { grid-template-columns: 1fr 1fr; }
}