/* ============================================
   Tesla Wrap Designer - Clone
   全局样式表
   ============================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f5f7;
  --color-bg-dark: #0a0a0a;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-border: #d2d2d7;
  --color-accent: #e82127;
  --color-accent-dark: #c00000;
  --color-success: #34c759;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --max-width: 1200px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", Roboto, Helvetica, Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- Navigation ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  height: 56px;
  display: flex;
  align-items: center;
}

.navbar .container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
}

.navbar-brand svg {
  width: 28px;
  height: 28px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.navbar-links a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s;
}

.navbar-links a:hover {
  color: var(--color-text);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-ai {
  background: var(--color-accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

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

.lang-badge {
  font-size: 12px;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: #e8e8ed;
}

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-border);
  color: var(--color-text);
}

/* ---- Hero Section ---- */
.hero {
  text-align: center;
  padding: 80px 20px 60px;
  background: linear-gradient(180deg, #f5f5f7 0%, #ffffff 100%);
}

.hero-badge {
  display: inline-block;
  background: rgba(232,33,39,0.1);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  line-height: 1.1;
}

.hero p {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---- Gallery Section ---- */
.section {
  padding: 60px 0;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 16px;
  margin-bottom: 40px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.gallery-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--color-border);
}

.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.gallery-card-img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: #e0e0e5;
}

.gallery-card-body {
  padding: 12px 16px;
}

.gallery-card-author {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.gallery-card-author img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.gallery-card-model {
  font-size: 14px;
  font-weight: 600;
  margin-top: 4px;
}

/* ---- Features ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-alt);
}

.feature-card .icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(232,33,39,0.1);
  font-size: 28px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---- Vehicle Selector ---- */
.vehicles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.vehicle-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: #fff;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}

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

.vehicle-card-img {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--color-text-secondary);
}

.vehicle-card-body {
  padding: 16px;
}

.vehicle-card-title {
  font-size: 16px;
  font-weight: 700;
}

.vehicle-card-sub {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.vehicle-card-link {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  margin-top: 8px;
  display: inline-block;
}

.vehicle-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

/* ---- Steps ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  text-align: center;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---- FAQ ---- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}

.faq-item summary {
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: var(--color-text-secondary);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---- Specs Table ---- */
.specs-list {
  max-width: 600px;
  margin: 0 auto;
  list-style: none;
}

.specs-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.specs-item .check {
  color: var(--color-success);
  font-weight: 700;
}

.specs-item .label {
  font-weight: 600;
  min-width: 140px;
}

.specs-item .value {
  color: var(--color-text-secondary);
}

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 32px 28px;
  text-align: center;
  background: #fff;
  position: relative;
  transition: box-shadow 0.2s;
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border: 2px solid var(--color-accent);
}

.pricing-card .badge-best {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}

.pricing-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-card .desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.pricing-card .price {
  font-size: 40px;
  font-weight: 800;
}

.pricing-card .credits {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.pricing-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 24px;
}

.pricing-card li {
  padding: 6px 0;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-card li::before {
  content: '\2713';
  color: var(--color-success);
  font-weight: 700;
}

/* ---- Footer ---- */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 24px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand {
  font-size: 14px;
  color: var(--color-text-secondary);
  max-width: 200px;
}

.footer-brand p {
  margin-top: 8px;
  font-size: 12px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-text-secondary);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-social {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-social a {
  color: var(--color-text-secondary);
  font-size: 18px;
}

.bmc-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.bmc-button img {
  width: 20px;
  height: 20px;
}

/* ---- Editor Page ---- */
.editor-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
  padding: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: calc(100vh - 56px);
}

.editor-canvas-area {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
}

.editor-canvas {
  max-width: 100%;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-md);
}

.editor-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
  justify-content: center;
}

.editor-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 20px;
}

.editor-panel h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.editor-tools {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-group {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.tool-group:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.tool-group label {
  font-size: 13px;
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

.tool-group input[type="text"] {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.tool-group input[type="range"] {
  width: 100%;
}

.tool-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.color-swatch {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--color-border);
  transition: transform 0.15s;
}

.color-swatch:hover {
  transform: scale(1.15);
}

.color-swatch.active {
  box-shadow: 0 0 0 2px var(--color-accent);
}

.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s;
}

.upload-zone:hover {
  border-color: var(--color-accent);
}

.upload-zone p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ---- 3D Preview ---- */
.preview-3d {
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.preview-3d .car-silhouette {
  font-size: 120px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

/* ---- Blog ---- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
}

.blog-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.blog-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-bg-alt);
}

.blog-card-body {
  padding: 20px;
}

.blog-card-date {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.blog-card-title {
  font-size: 17px;
  font-weight: 700;
  margin: 4px 0 8px;
}

.blog-card-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.blog-card-tags {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.blog-tag {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--color-bg-alt);
  border-radius: 10px;
  color: var(--color-text-secondary);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
}

.modal-box {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 440px;
  width: 90%;
  text-align: center;
}

.modal-box h2 {
  margin-bottom: 8px;
}

.modal-box p {
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

/* ---- Utilities ---- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.bg-alt { background: var(--color-bg-alt); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .navbar-links { display: none; }
  .hero { padding: 40px 20px 30px; }
  .gallery-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .vehicles-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .editor-layout { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .vehicles-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
}