:root {
  --primary: #7928ca;
  --primary-light: #9d4edd;
  --primary-dark: #5a189a;
  --accent: #ff007f;
  --accent-light: #ff70a6;
  --bg-main: #fcfbfe;
  --bg-card: #ffffff;
  --bg-soft: #f4eeff;
  --text-main: #1f1a2e;
  --text-muted: #5e5675;
  --text-light: #8e84a8;
  --border-color: #eadcfc;
  --border-focus: #b784fc;
  --shadow-sm: 0 4px 12px rgba(121, 40, 202, 0.06);
  --shadow-md: 0 10px 30px rgba(121, 40, 202, 0.1);
  --shadow-lg: 0 20px 45px rgba(121, 40, 202, 0.16);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 15%, rgba(121, 40, 202, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 85%, rgba(255, 0, 127, 0.03) 0%, transparent 45%);
  background-attachment: fixed;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  width: 100%;
}
.section-padding {
  padding: 80px 0;
}
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px auto;
}
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-soft);
  color: var(--primary);
  font-weight: 600;
  font-size: 13px;
  border-radius: 30px;
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(121, 40, 202, 0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent) 100%);
  box-shadow: 0 10px 25px rgba(255, 0, 127, 0.4);
  transform: translateY(-2px);
}
.btn-outline {
  background: #ffffff;
  color: var(--primary);
  border: 1.5px solid var(--primary-light);
}
.btn-outline:hover {
  background: var(--bg-soft);
  transform: translateY(-2px);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 15px rgba(121, 40, 202, 0.05);
}
.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.logo-box {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ai-page-logo {
  height: 42px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: var(--bg-soft);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text-main);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}
.hero-section {
  position: relative;
  padding: 100px 0 80px 0;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(244, 238, 255, 0.6) 0%, rgba(252, 251, 254, 1) 100%);
}
.hero-glow-1 {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, rgba(157, 78, 221, 0.25) 0%, rgba(255, 112, 166, 0.1) 60%, transparent 80%);
  filter: blur(50px);
  z-index: 0;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 0, 127, 0.6); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(255, 0, 127, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 0, 127, 0); }
}
.hero-title {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-title span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px auto;
  line-height: 1.7;
}
.hero-btn-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-features-bar {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-width: 850px;
  margin: 0 auto;
}
.hero-feat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}
.feat-icon-bullet {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  color: var(--primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: bold;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: -30px;
  position: relative;
  z-index: 2;
}
.stat-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-focus);
}
.stat-number {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
  line-height: 1.1;
}
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.model-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 30px;
}
.model-tag {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
  box-shadow: 0 2px 6px rgba(121, 40, 202, 0.03);
}
.model-tag:hover {
  color: var(--primary);
  border-color: var(--primary-light);
  transform: translateY(-2px);
  background: var(--bg-soft);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-focus);
}
.card-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-soft);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
  font-weight: bold;
}
.card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}
.card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}
.scene-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.scene-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.scene-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.scene-card p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
}
.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.step-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.step-num {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 28px;
  font-weight: 900;
  color: var(--bg-soft);
  line-height: 1;
}
.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.step-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.55;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.gallery-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.gallery-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.gallery-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-soft);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-img-wrap.square {
  aspect-ratio: 1 / 1;
}
.gallery-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-info {
  padding: 18px 20px;
}
.gallery-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-main);
}
.gallery-desc {
  font-size: 13px;
  color: var(--text-muted);
}
.rating-banner {
  background: linear-gradient(135deg, var(--bg-soft) 0%, #ffffff 100%);
  border: 2px solid var(--border-focus);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 20px;
}
.rating-score-box {
  display: flex;
  align-items: center;
  gap: 20px;
}
.rating-score {
  font-size: 48px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.rating-stars {
  font-size: 20px;
  color: #ff9900;
  margin-bottom: 4px;
}
.rating-sub {
  font-size: 13px;
  color: var(--text-muted);
}
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 650px;
}
.compare-table th,
.compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}
.compare-table th {
  background: var(--bg-soft);
  color: var(--text-main);
  font-weight: 700;
}
.compare-table tr:last-child td {
  border-bottom: none;
}
.compare-table .highlight-col {
  background: rgba(121, 40, 202, 0.03);
  font-weight: 600;
  color: var(--primary-dark);
}
.badge-tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}
.badge-win {
  background: #eefbee;
  color: #1b8a36;
}
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.faq-toggle-icon {
  font-size: 18px;
  color: var(--primary);
  transition: transform 0.3s ease;
}
.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
}
.faq-answer {
  padding: 0 24px 20px 24px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: none;
}
.faq-item.active .faq-answer {
  display: block;
}
.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}
.user-avatar {
  width: 44px;
  height: 44px;
  background: var(--bg-soft);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 14px;
}
.user-meta-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}
.user-meta-role {
  font-size: 12px;
  color: var(--text-muted);
}
.quote-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  position: relative;
}
.form-container-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  max-width: 800px;
  margin: 0 auto;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}
.form-group.full-width {
  grid-column: span 2;
}
.form-group label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-main);
  color: var(--text-main);
  transition: var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(121, 40, 202, 0.1);
}
textarea.form-control {
  resize: vertical;
  min-height: 100px;
}
.articles-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 30px;
}
.article-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.article-item-link {
  display: block;
  padding: 10px 14px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text-muted);
  transition: var(--transition);
}
.article-item-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--bg-soft);
}
.contact-meta-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.contact-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.contact-icon {
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 12px;
}
.contact-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}
.contact-val {
  font-size: 13.5px;
  color: var(--text-muted);
}
.qrcode-box {
  width: 140px;
  margin: 12px auto 0 auto;
  border: 1px solid var(--border-color);
  padding: 6px;
  border-radius: var(--radius-sm);
  background: #ffffff;
}
.qrcode-box img {
  width: 100%;
  height: auto;
  display: block;
}
.site-footer {
  background: #191424;
  color: #cfc8df;
  padding: 60px 0 30px 0;
  border-top: 1px solid #2d2440;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}
.footer-logo-desc {
  font-size: 13px;
  line-height: 1.7;
  color: #a89fbf;
  margin-top: 14px;
  max-width: 320px;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
}
.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links-list a {
  font-size: 13px;
  color: #a89fbf;
}
.footer-links-list a:hover {
  color: var(--accent-light);
}
.friend-links-box {
  padding-top: 24px;
  border-top: 1px solid #2d2440;
  margin-bottom: 24px;
}
.friend-links-title {
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}
.friend-links-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.friend-links-wrap a {
  font-size: 12.5px;
  color: #8f85a8;
}
.friend-links-wrap a:hover {
  color: #ffffff;
}
.footer-bottom {
  text-align: center;
  font-size: 12px;
  color: #756a8e;
  padding-top: 20px;
  border-top: 1px solid #251e33;
}
.float-widget {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.float-btn:hover {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-3px);
}
.float-popover {
  position: absolute;
  right: 58px;
  bottom: 0;
  background: #ffffff;
  padding: 12px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  width: 160px;
  display: none;
  text-align: center;
}
.float-btn:hover .float-popover {
  display: block;
}
.float-popover img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  display: block;
}
.float-popover-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}
@media (max-width: 992px) {
  .grid-4, .process-timeline, .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-title {
    font-size: 34px;
  }
}
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 74px;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav-links.show {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 10px 0;
  }
  .header-actions .btn {
    display: none;
  }
  .grid-3, .grid-2, .gallery-grid, .stats-grid, .contact-meta-cards, .form-grid, .article-links-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 26px;
  }
  .hero-features-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .rating-banner {
    flex-direction: column;
    text-align: center;
  }
  .rating-score-box {
    flex-direction: column;
    gap: 8px;
  }
}