/* ==========================================================================
   Premium NEV Export Platform - Global Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* 汽车工业冷峻配色：深空灰、矩阵冷银、极速蓝 */
  --bg-main: #0a0c10;
  --bg-card: #121620;
  --bg-input: #1a202c;
  --border-color: #202738;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --color-accent: #0066cc;
  --color-accent-hover: #0052a3;
  --color-success: #10b981;
  --color-danger: #dc2626;
  --color-warning: #d97706;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 4px;
}

/* 样式重置与全局样式 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

button, input, select, textarea {
  font-family: inherit;
  background: none;
  border: none;
  color: inherit;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部高奢导航栏 */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-accent {
  color: var(--color-accent);
}

.nav-menu {
  display: flex;
  gap: 32px;
  list-style: none;
  margin-left: auto;
  margin-right: 40px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: pointer;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-lang {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-lang:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

.btn-contact {
  background-color: var(--color-accent);
  color: white;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-contact:hover {
  background-color: var(--color-accent-hover);
}

/* 手机端响应式菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition);
}

/* 巨幕 Hero 区域 */
.hero {
  position: relative;
  height: 90vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  padding-top: 70px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(10, 12, 16, 0.4), rgba(10, 12, 16, 0.95));
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 650px;
}

.hero-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
  border: 1px solid rgba(0, 102, 204, 0.3);
  padding: 4px 12px;
  border-radius: 2px;
  background-color: rgba(0, 102, 204, 0.1);
}

.hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 102, 204, 0.35);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  background-color: rgba(255, 255, 255, 0.02);
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.08);
}

/* 实力看板 */
.stats-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--border-color);
  background-color: #0d1017;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 32px 24px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* 通用标题样式 */
.section-title-wrap {
  text-align: center;
  margin-bottom: 48px;
}

.section-subtitle {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

/* 车型筛选区域 */
.vehicles-section {
  padding: 100px 0;
  background-color: var(--bg-main);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
  background-color: var(--bg-card);
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.filter-options {
  display: flex;
  gap: 8px;
}

.filter-btn {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
  background-color: rgba(255, 255, 255, 0.02);
}

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

.filter-btn.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.filter-input-wrap {
  position: relative;
  width: 220px;
}

.filter-input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: white;
  font-size: 13px;
  width: 100%;
  outline: none;
  transition: var(--transition);
}

.filter-input:focus {
  border-color: var(--color-accent);
}

/* 车辆网格卡片 (绝对等高对齐) */
.vehicles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.vehicle-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition);
}

.vehicle-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.vehicle-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background-color: #000;
}

.vehicle-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.vehicle-card:hover .vehicle-img {
  transform: scale(1.04);
}

.vehicle-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--color-accent);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 2px;
  text-transform: uppercase;
}

.vehicle-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.vehicle-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vehicle-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  min-height: 40px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.vehicle-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-val {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.spec-lbl {
  font-size: 10px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-top: 2px;
}

.vehicle-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.vehicle-price {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-accent);
}

.vehicle-price span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 4px;
}

.btn-actions-wrap {
  display: flex;
  gap: 8px;
}

.btn-inquire {
  background-color: transparent;
  border: 1px solid var(--color-accent);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-inquire:hover {
  background-color: var(--color-accent);
  color: white;
}

/* 购车五步流程 */
.steps-section {
  padding: 100px 0;
  background-color: #0d1017;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.step-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 32px 20px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.step-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.step-num {
  font-size: 32px;
  font-weight: 800;
  color: rgba(0, 102, 204, 0.2);
  position: absolute;
  top: 16px;
  right: 20px;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  margin-top: 12px;
  margin-bottom: 12px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

/* 港口运费计算器 */
.shipping-section {
  padding: 100px 0;
  background-color: var(--bg-main);
}

.shipping-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 48px;
  max-width: 800px;
  margin: 0 auto;
}

.shipping-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.form-select {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  width: 100%;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.form-select:focus {
  border-color: var(--color-accent);
}

.shipping-result {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: center;
}

.result-item {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.result-val {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.result-val.accent {
  color: var(--color-accent);
  font-size: 24px;
}

.result-lbl {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
  text-transform: uppercase;
}

/* 多图画廊 */
.gallery-section {
  padding: 100px 0;
  background-color: #0d1017;
  border-top: 1px solid var(--border-color);
}

.gallery-wrapper {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 32px;
}

.gallery-main {
  background-color: #000;
  aspect-ratio: 16/9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  position: relative;
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-thumbs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: space-between;
}

.thumb-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  gap: 16px;
  cursor: pointer;
  transition: var(--transition);
  align-items: center;
}

.thumb-card:hover, .thumb-card.active {
  border-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.02);
}

.thumb-img {
  width: 100px;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 2px;
  background-color: #000;
}

.thumb-info {
  flex-grow: 1;
}

.thumb-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.thumb-desc {
  font-size: 12px;
  color: var(--text-secondary);
}

/* 海外买家反馈板块 */
.reviews-section {
  padding: 100px 0;
  background-color: var(--bg-main);
  border-top: 1px solid var(--border-color);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.review-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.review-user-info h5 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.review-user-info span {
  font-size: 12px;
  color: var(--text-secondary);
}

.review-comment {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
}

/* FAQ 手风琴问答 */
.faq-section {
  padding: 100px 0;
  background-color: var(--bg-main);
}

.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.faq-header:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

.faq-question {
  font-size: 15px;
  font-weight: 700;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: var(--transition);
  color: var(--text-secondary);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  border-top: 0 solid var(--border-color);
}

.faq-item.active .faq-content {
  border-top-width: 1px;
}

.faq-answer {
  padding: 24px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 底部页脚 */
footer {
  background-color: #080a0e;
  border-top: 1px solid var(--border-color);
  padding: 80px 0 30px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-desc {
  margin-bottom: 24px;
  max-width: 380px;
  line-height: 1.6;
}

.footer-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a {
  transition: var(--transition);
}

.footer-links-list a:hover {
  color: var(--text-primary);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-contact-icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 询盘模态弹窗 / 画廊弹窗 (全局通用弹窗规范) */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal-backdrop.active {
  display: flex;
  opacity: 1;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  width: 100%;
  max-width: 550px;
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-backdrop.active .modal-card {
  transform: translateY(0);
}

.modal-card.large {
  max-width: 850px;
}

.modal-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition);
  line-height: 1;
}

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

.modal-body {
  padding: 24px;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-input, .form-textarea {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: var(--transition);
  color: white;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--color-accent);
}

.form-textarea {
  height: 100px;
  resize: none;
}

.btn-submit {
  background-color: var(--color-accent);
  color: white;
  font-size: 14px;
  font-weight: 700;
  padding: 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  width: 100%;
}

.btn-submit:hover {
  background-color: var(--color-accent-hover);
}

/* 弹窗中的画廊预览细节 */
.modal-gallery-main {
  width: 100%;
  aspect-ratio: 16/9;
  background-color: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  position: relative;
  margin-bottom: 16px;
}

.modal-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.modal-gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.modal-gallery-nav:hover {
  background-color: var(--color-accent);
}

.modal-gallery-nav.prev { left: 16px; }
.modal-gallery-nav.next { right: 16px; }

.modal-gallery-thumbs {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.modal-thumb-item {
  width: 72px;
  aspect-ratio: 16/9;
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.4;
  border: 2px solid transparent;
  transition: var(--transition);
}

.modal-thumb-item.active {
  opacity: 1;
  border-color: var(--color-accent);
}

.modal-thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-vehicle-specs-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px;
  background-color: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.modal-specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.modal-spec-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-gallery-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.modal-gallery-price {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-accent);
}

/* 成功提醒框 */
.success-alert {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-sm);
  padding: 16px;
  color: var(--color-success);
  font-size: 14px;
  font-weight: 600;
  display: none;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

/* ==========================================================================
   后台 SaaS 控制台专属布局
   ========================================================================== */
.admin-body {
  background-color: #060911;
  color: var(--text-primary);
}

.admin-layout {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 240px;
  background-color: #0c0f17;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.admin-brand {
  height: 70px;
  display: flex;
  align-items: center;
  padding: 0 24px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 2px;
  border-bottom: 1px solid var(--border-color);
  color: white;
}

.admin-menu {
  list-style: none;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-menu li {
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

.admin-menu li a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.admin-menu li:hover, .admin-menu li.active {
  background-color: var(--bg-card);
}

.admin-menu li:hover a, .admin-menu li.active a {
  color: white;
}

.admin-main {
  flex-grow: 1;
  background-color: #060911;
  display: flex;
  flex-direction: column;
}

.admin-header {
  height: 70px;
  background-color: #0c0f17;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
}

.admin-header h2 {
  font-size: 18px;
  font-weight: 800;
}

.admin-content {
  padding: 32px;
  overflow-y: auto;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.admin-section {
  display: none;
}

.admin-section.active {
  display: block;
}

/* 后台表格 */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-top: 16px;
  font-size: 14px;
}

.admin-table th, .admin-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.admin-table th {
  background-color: rgba(255, 255, 255, 0.01);
  color: var(--text-secondary);
  font-weight: 700;
}

.admin-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

.action-btns {
  display: flex;
  gap: 8px;
}

.btn {
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-warning {
  background-color: transparent;
  border: 1px solid var(--color-warning);
  color: var(--color-warning);
}

.btn-warning:hover {
  background-color: var(--color-warning);
  color: white;
}

.btn-danger {
  background-color: transparent;
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
}

.btn-danger:hover {
  background-color: var(--color-danger);
  color: white;
}

/* 后台配置表单栅格 */
.admin-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.admin-form-grid .full-width {
  grid-column: span 2;
}

/* 抽屉弹出层与遮罩 */
.drawer-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 12, 16, 0.65);
  backdrop-filter: blur(5px);
  z-index: 1999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.drawer-backdrop.active {
  display: block;
  opacity: 1;
}

.drawer {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  width: 550px;
  height: 100%;
  background-color: #0c0f17;
  border-left: 1px solid var(--border-color);
  z-index: 2000;
  padding: 32px 32px 90px 32px;
  overflow-y: auto;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.55);
  animation: slideIn 0.3s ease;
}

/* 响应式表单布局类 */
.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-input {
  flex: 1;
  min-width: 0;
}

.form-grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

@media (max-width: 576px) {
  .form-row {
    flex-direction: column;
    gap: 16px;
  }
  .form-grid-three {
    grid-template-columns: 1fr;
  }
}

@keyframes slideIn {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

/* 移动端与响应式适配 */
@media (max-width: 992px) {
  .vehicles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: span 2;
  }
  .admin-layout {
    flex-direction: column;
  }
  .admin-sidebar {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  .admin-brand {
    height: 60px;
  }
  .admin-menu {
    flex-direction: row;
    padding: 10px;
    gap: 12px;
    overflow-x: auto;
  }
  .admin-menu li a {
    padding: 8px 12px;
  }
  .admin-header {
    padding: 0 16px;
    height: 60px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--bg-card);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    margin: 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 32px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .shipping-form-grid {
    grid-template-columns: 1fr;
  }

  .shipping-result {
    grid-template-columns: 1fr;
  }

  .gallery-wrapper {
    grid-template-columns: 1fr;
  }

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

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

  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .drawer {
    width: 100%;
    padding: 20px;
  }
  
  .admin-form-grid {
    grid-template-columns: 1fr;
  }
  
  .admin-form-grid .full-width {
    grid-column: span 1;
  }
}

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