/* 基础变量与重置 */
:root {
  --primary-glow: #e0e7ff;
  --laser-cyan: #06b6d4;
  --laser-purple: #8b5cf6;
  --laser-pink: #ec4899;
  --laser-gradient: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 50%, #ec4899 100%);
  --laser-border: linear-gradient(135deg, rgba(6,182,212,0.4), rgba(139,92,246,0.4), rgba(236,72,153,0.4));
  --bg-main: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.85);
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-sub: #64748b;
  --border-color: #e2e8f0;
  --container-max: 1200px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-laser: 0 10px 30px -5px rgba(139, 92, 246, 0.15), 0 0 15px rgba(6, 182, 212, 0.1);
}

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

html {
  scroll-behavior: smooth;
  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: 1.6;
}

body {
  background: radial-gradient(circle at 10% 0%, rgba(6,182,212,0.08) 0%, transparent 40%),
              radial-gradient(circle at 90% 20%, rgba(236,72,153,0.08) 0%, transparent 40%),
              radial-gradient(circle at 50% 70%, rgba(139,92,246,0.06) 0%, transparent 50%),
              var(--bg-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.header-wrapper {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-box {
  height: 40px;
  display: flex;
  align-items: center;
}

.brand-logo-box img {
  height: 38px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}

.nav-links a:hover {
  color: var(--laser-purple);
  background: rgba(139, 92, 246, 0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.nav-btn-primary {
  background: var(--laser-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.3);
}

.nav-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.45);
}

.nav-btn-outline {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.nav-btn-outline:hover {
  border-color: var(--laser-purple);
  color: var(--laser-purple);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-main);
  cursor: pointer;
  padding: 4px;
}

/* 模块通用样式 */
.section {
  padding: 70px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px auto;
}

.section-badge {
  display: inline-block;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--laser-purple);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 999px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

.laser-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.laser-card:hover {
  border-color: rgba(139, 92, 246, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-laser);
}

/* 首屏 Hero（无图片） */
.hero-section {
  padding: 80px 0 60px 0;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(6, 182, 212, 0.4);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-main);
  margin-bottom: 24px;
  box-shadow: 0 2px 10px rgba(6, 182, 212, 0.15);
}

.hero-pill-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 36px auto;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  background: var(--laser-gradient);
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.35);
  transition: all 0.3s ease;
  border: none;
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(139, 92, 246, 0.5);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-hero-secondary:hover {
  border-color: var(--laser-cyan);
  color: var(--laser-cyan);
  transform: translateY(-2px);
}

/* 核心指标统计（纯数据卡片） */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 10px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(226, 232, 240, 0.9);
  padding: 20px 16px;
  border-radius: var(--radius-md);
  text-align: center;
  backdrop-filter: blur(6px);
  transition: all 0.3s ease;
}

.stat-card:hover {
  background: #ffffff;
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateY(-3px);
}

.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  background: var(--laser-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}

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

/* 模型标签矩阵 */
.model-tags-wrapper {
  margin-top: 40px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.model-tags-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 12px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.model-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.model-chip {
  font-size: 12px;
  padding: 4px 10px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.model-chip:hover {
  border-color: var(--laser-purple);
  color: var(--laser-purple);
  background: rgba(139, 92, 246, 0.05);
}

/* 场景与能力网格 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.feature-box:hover {
  border-color: rgba(6, 182, 212, 0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-laser);
}

.feature-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.feature-icon-badge {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(139, 92, 246, 0.1);
  color: var(--laser-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.feature-status {
  font-size: 11px;
  padding: 2px 8px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--laser-cyan);
  border-radius: 4px;
  font-weight: 600;
}

.feature-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}

/* 标准制作流程 */
.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  position: relative;
  text-align: left;
}

.step-number {
  font-size: 14px;
  font-weight: 800;
  color: var(--laser-purple);
  margin-bottom: 12px;
  display: inline-block;
  padding: 2px 8px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 4px;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 对比评测表格 */
.eval-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

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

.eval-score-left h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.eval-score-left p {
  font-size: 14px;
  color: var(--text-muted);
}

.eval-badge-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.score-box {
  background: var(--laser-gradient);
  color: #ffffff;
  padding: 8px 18px;
  border-radius: var(--radius-md);
  text-align: center;
}

.score-box-num {
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.score-box-label {
  font-size: 11px;
  opacity: 0.9;
}

.star-rating {
  color: #f59e0b;
  font-size: 18px;
  font-weight: 700;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.compare-table th, .compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}

.compare-table th {
  background: #f8fafc;
  color: var(--text-main);
  font-weight: 700;
}

.compare-table td:first-child {
  font-weight: 600;
  color: var(--text-main);
  width: 22%;
}

.col-highlight {
  background: rgba(139, 92, 246, 0.03);
  font-weight: 600;
  color: var(--laser-purple);
}

/* 案例与素材展示区（使用指定图片） */
.media-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.media-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.media-img-container {
  width: 100%;
  position: relative;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-img-container img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.media-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.media-content h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.media-content p {
  font-size: 13px;
  color: var(--text-muted);
}

.media-sub-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.review-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

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

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--laser-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  font-size: 15px;
}

.review-info h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

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

.review-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* FAQ 折叠面板 */
.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-question {
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question:hover {
  color: var(--laser-purple);
}

.faq-icon {
  font-size: 18px;
  transition: transform 0.25s ease;
}

.faq-answer {
  padding: 0 20px 18px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

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

/* 文章列表与资讯 */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.article-card:hover {
  border-color: var(--laser-purple);
  transform: translateY(-3px);
}

.article-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.article-meta {
  font-size: 12px;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}

.article-link {
  color: var(--laser-purple);
  text-decoration: none;
  font-weight: 600;
}

/* 需求表单与联系我们 */
.contact-section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.contact-info-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--laser-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.contact-text p {
  font-size: 13px;
  color: var(--text-muted);
}

.qrcode-box {
  margin-top: 24px;
  padding: 20px;
  background: #f8fafc;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px dashed var(--border-color);
}

.qrcode-box img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  margin-bottom: 8px;
  border-radius: 8px;
}

.qrcode-label {
  font-size: 12px;
  color: var(--text-sub);
  font-weight: 500;
}

/* 表单样式 */
.form-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: #f8fafc;
  color: var(--text-main);
  transition: all 0.2s ease;
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--laser-purple);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 90px;
}

.btn-submit {
  width: 100%;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  background: var(--laser-gradient);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.25);
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(139, 92, 246, 0.35);
}

/* 友情链接与页脚 */
.footer-wrapper {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
  margin-top: auto;
}

.friendly-links-section {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.friendly-links-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-sub);
  margin-bottom: 12px;
}

.friendly-links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.friendly-links-list a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.friendly-links-list a:hover {
  color: var(--laser-purple);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 30px;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-sub);
}

.footer-bottom a {
  color: var(--text-sub);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--laser-purple);
}

/* 浮动客服 */
.floating-kefu {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kefu-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--laser-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
  cursor: pointer;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.25s ease;
}

.kefu-btn:hover {
  transform: scale(1.08);
}

/* 动画定义 */
@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* 响应式适配 */
@media (max-width: 992px) {
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .media-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 10px 0;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .hero-title {
    font-size: 28px;
  }
  .section-title {
    font-size: 24px;
  }
  .feature-grid, .reviews-grid, .article-grid, .workflow-steps, .hero-stats-grid {
    grid-template-columns: 1fr;
  }
  .contact-section-grid {
    grid-template-columns: 1fr;
  }
}