/* ========== 设计系统变量 ========== */
:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --border-color: #3a3a3a;
  --border-hover: #4a4a4a;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-tertiary: #666666;
  --accent-primary: #f5d9a8;
  --accent-hover: #ffe4b5;
  --accent-text: #1a1a1a;
  --color-success: #7c9a4d;
  --color-wechat: #07c160;
  --color-alipay: #1677ff;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ========== 基础样式 ========== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* ========== 导航栏 ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: bold;
  color: var(--text-primary);
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: cover;
  background: #0d0d0d;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 15px;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent-primary);
}

/* 导航栏试用按钮 */
.nav-trial-btn {
  padding: 8px 20px;
  background: transparent;
  color: var(--accent-primary);
  border: 1.5px solid var(--accent-primary);
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-trial-btn:hover {
  background: var(--accent-primary);
  color: var(--accent-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 217, 168, 0.3);
}

.nav-workspace-btn {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #e6c896 100%);
  color: var(--accent-text) !important;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-workspace-btn:hover {
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-primary) 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 217, 168, 0.4);
}

/* ========== Hero区块 ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

/* 泡泡球背景容器 */
#ballpit-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

#ballpit-container canvas {
  width: 100% !important;
  height: 100% !important;
}

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(135deg, rgba(245, 217, 168, 0.2) 0%, rgba(245, 217, 168, 0.1) 100%);
  border: 1px solid var(--accent-primary);
  border-radius: 20px;
  font-size: 14px;
  color: var(--accent-primary);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 22px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-tag {
  padding: 8px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

.hero-tag-label {
  font-size: 14px;
  color: var(--accent-primary);
  font-weight: 500;
}

.cta-button {
  display: inline-block;
  padding: 18px 56px;
  background: var(--accent-primary);
  color: var(--accent-text);
  font-size: 18px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  background: var(--accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(245, 217, 168, 0.3);
}

/* ========== 区块通用 ========== */
.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 60px;
}

/* ========== 功能特点 ========== */
.features {
  padding: 100px 0;
  background: var(--bg-primary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--accent-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ========== 工作流程 ========== */
.workflow {
  padding: 100px 0;
  background: var(--bg-primary);
}

.workflow-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.workflow-step {
  text-align: center;
  flex: 0 0 180px;
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--accent-primary);
  color: var(--accent-text);
  font-size: 24px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.workflow-step h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

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

.workflow-arrow {
  width: 40px;
  height: 40px;
  color: var(--text-tertiary);
}

.workflow-arrow svg {
  width: 100%;
  height: 100%;
}

/* ========== 购买区块 ========== */
.pricing {
  padding: 100px 0;
  background: var(--bg-primary);
}

.pricing-card {
  max-width: 420px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pricing-badge {
  position: absolute;
  top: 20px;
  right: -35px;
  background: var(--accent-primary);
  color: var(--accent-text);
  padding: 6px 40px;
  font-size: 12px;
  font-weight: 600;
  transform: rotate(45deg);
}

.price-tag {
  margin-bottom: 32px;
}

.price-tag .currency {
  font-size: 28px;
  vertical-align: top;
  margin-right: 4px;
}

.price-tag .amount {
  font-size: 72px;
  font-weight: 700;
  color: var(--accent-primary);
  line-height: 1;
}

.original-price {
  display: block;
  font-size: 18px;
  color: #888;
  text-decoration: line-through !important;
  margin-top: 8px;
  -webkit-text-decoration: line-through;
}

.benefits {
  list-style: none;
  text-align: left;
  margin-bottom: 36px;
}

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

.benefits li:last-child {
  border-bottom: none;
}

.benefits li svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
}

.pay-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pay-btn {
  padding: 16px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s;
  color: white;
}

.pay-btn svg {
  width: 24px;
  height: 24px;
}

.pay-btn.wechat {
  background: var(--color-wechat);
}

.pay-btn.alipay {
  background: var(--color-alipay);
}

.pay-btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.pay-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.pay-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.wechat-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.wechat-tip {
  margin-top: 8px;
  font-size: 12px;
  color: #999;
}

/* ========== 下载区块 ========== */
.download {
  padding: 100px 0;
  background: var(--bg-primary);
}

.download-cards {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.download-card {
  flex: 1;
  max-width: 360px;
  min-width: 280px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
}

.download-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  color: var(--accent-primary);
}

.download-icon svg {
  width: 100%;
  height: 100%;
}

.download-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.download-card > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: var(--accent-primary);
  color: var(--accent-text);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.3s;
}

.download-btn svg {
  width: 20px;
  height: 20px;
}

.download-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.download-version {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.download-icon svg {
  width: 60px;
  height: 60px;
}

.mac-btn {
  background: linear-gradient(135deg, #333 0%, #1a1a1a 100%);
  color: #fff;
  border: 1px solid #444;
}

.mac-btn:hover {
  background: linear-gradient(135deg, #444 0%, #2a2a2a 100%);
}

/* Mac 安装提示 */
.mac-install-tip {
  max-width: 700px;
  margin: 0 auto;
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  text-align: left;
}

.mac-install-tip .tip-header {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.mac-install-tip .tip-header svg {
  width: 20px;
  height: 20px;
}

.mac-install-tip p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.mac-install-tip p:last-child {
  margin-bottom: 0;
}

/* ========== 社群区块 ========== */
.community {
  padding: 100px 0;
  background: var(--bg-primary);
}

.community-content {
  display: flex;
  justify-content: center;
  gap: 80px;
  flex-wrap: wrap;
}

.qr-section {
  text-align: center;
}

.qr-image {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: white;
  padding: 10px;
}

.qr-section p {
  margin-top: 16px;
  color: var(--text-secondary);
}

.contact-section {
  text-align: left;
}

.contact-section h3 {
  font-size: 24px;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-primary);
  font-size: 18px;
}

.contact-item svg {
  width: 24px;
  height: 24px;
  color: var(--accent-primary);
}

.contact-tip {
  margin-top: 24px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* ========== Footer ========== */
.footer {
  padding: 60px 0 30px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

.footer-content {
  text-align: center;
  margin-bottom: 40px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 12px;
}

.footer-logo .logo-img {
  width: 36px;
  height: 36px;
}

.footer-desc {
  color: var(--text-secondary);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  color: var(--text-tertiary);
  font-size: 14px;
}

/* ========== 弹窗 ========== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  max-width: 420px;
  width: 90%;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: 50%;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  transition: all 0.3s;
}

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

.modal-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-icon.success {
  background: rgba(124, 154, 77, 0.2);
  color: var(--color-success);
}

.modal-icon svg {
  width: 32px;
  height: 32px;
}

.modal-content h3 {
  font-size: 24px;
  margin-bottom: 16px;
}

.activation-code {
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 24px;
  color: var(--accent-primary);
  background: var(--bg-tertiary);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  margin: 16px 0 24px;
  letter-spacing: 2px;
  word-break: break-all;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--accent-primary);
  color: var(--accent-text);
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s;
}

.copy-btn svg {
  width: 18px;
  height: 18px;
}

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

.modal-note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-tertiary);
}

/* 加载弹窗 */
.loading-content {
  padding: 48px 64px;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  margin: 0 auto 24px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-features {
    gap: 10px;
  }

  .hero-tag {
    padding: 6px 14px;
    font-size: 13px;
  }

  .section-title {
    font-size: 28px;
    margin-bottom: 40px;
  }

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

  .workflow-steps {
    flex-direction: column;
    gap: 32px;
  }

  .workflow-arrow {
    transform: rotate(90deg);
  }

  .workflow-step {
    flex: none;
  }

  .pricing-card {
    padding: 36px 24px;
  }

  .price-tag .amount {
    font-size: 56px;
  }

  .community-content {
    gap: 48px;
  }

  .contact-section {
    text-align: center;
  }

  /* Hero响应式 */
  .hero h1 br {
    display: none;
  }

  .hero-cta {
    flex-direction: column;
  }

  .cta-button,
  .cta-button-secondary {
    width: 100%;
    text-align: center;
  }

  .hero-trust {
    flex-direction: column;
    gap: 12px;
  }

  /* 痛点区块响应式 */
  .pain-grid {
    grid-template-columns: 1fr;
  }

  /* 模型区块响应式 */
  .models-grid {
    grid-template-columns: 1fr;
  }

  /* 价格对比响应式 */
  .compare-table th,
  .compare-table td {
    padding: 16px 12px;
    font-size: 14px;
  }

  .price-value {
    font-size: 18px;
  }

  .cheap .price-value {
    font-size: 22px;
  }

  .savings-highlight {
    flex-direction: column;
    text-align: center;
  }

  .savings-text {
    text-align: center;
  }
}

/* ========== Hero区块增强 ========== */
.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(135deg, rgba(245, 217, 168, 0.2) 0%, rgba(245, 217, 168, 0.1) 100%);
  border: 1px solid var(--accent-primary);
  border-radius: 20px;
  font-size: 14px;
  color: var(--accent-primary);
  margin-bottom: 24px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle strong {
  color: var(--accent-primary);
  font-size: 1.1em;
}

.hero-trust {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  padding: 8px 16px;
  background: rgba(245, 217, 168, 0.1);
  border: 1px solid rgba(245, 217, 168, 0.2);
  border-radius: 20px;
}

.trust-item svg {
  width: 16px;
  height: 16px;
  color: var(--accent-primary);
}

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

.cta-button-secondary {
  display: inline-block;
  padding: 18px 40px;
  background: transparent;
  color: var(--accent-primary);
  font-size: 18px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid var(--accent-primary);
  transition: all 0.3s;
}

.cta-button-secondary:hover {
  background: rgba(245, 217, 168, 0.1);
  transform: translateY(-3px);
}

.hero-feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-tag-label {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ========== 区块副标题 ========== */
.section-subtitle {
  text-align: center;
  font-size: 18px;
  color: var(--text-secondary);
  margin-top: -40px;
  margin-bottom: 60px;
}

/* ========== 痛点与解决方案区块 ========== */
.pain-points {
  padding: 100px 0;
  background: var(--bg-primary);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.pain-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all 0.3s;
}

.pain-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

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

.pain-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pain-icon.pain {
  background: rgba(255, 100, 100, 0.15);
  color: #ff6b6b;
}

.pain-icon svg {
  width: 28px;
  height: 28px;
}

.pain-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.pain-desc {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 20px;
}

.solution-arrow {
  width: 32px;
  height: 32px;
  margin: 0 auto 16px;
  color: var(--accent-primary);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

.solution-arrow svg {
  width: 100%;
  height: 100%;
}

.solution-content {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(245, 217, 168, 0.1);
  border: 1px solid rgba(245, 217, 168, 0.3);
  border-radius: var(--radius-md);
  padding: 16px;
}

.solution-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.solution-icon svg {
  width: 16px;
  height: 16px;
  color: var(--accent-text);
}

.solution-text {
  text-align: left;
  font-size: 14px;
  color: var(--text-primary);
}

.solution-text strong {
  color: var(--accent-primary);
}

/* ========== 功能卡片增强 ========== */
.feature-card.featured {
  border: 2px solid var(--accent-primary);
  background: linear-gradient(135deg, rgba(245, 217, 168, 0.05) 0%, transparent 100%);
  position: relative;
}

.feature-badge {
  position: absolute;
  top: 0;
  left: 24px;
  transform: translateY(-50%);
  background: var(--accent-primary);
  color: var(--accent-text);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.feature-card p strong {
  color: var(--accent-primary);
}

/* ========== AI模型阵容区块 ========== */
.ai-models {
  padding: 100px 0;
  background: var(--bg-primary);
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.model-category {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s;
}

.model-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.model-category.highlight {
  border: 2px solid var(--accent-primary);
  background: linear-gradient(135deg, rgba(245, 217, 168, 0.08) 0%, transparent 100%);
}

.category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.category-icon {
  width: 32px;
  height: 32px;
  background: rgba(245, 217, 168, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
}

.category-icon svg {
  width: 18px;
  height: 18px;
}

.model-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.model-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  transition: all 0.3s;
}

.model-item:hover {
  background: var(--border-color);
}

.model-item.premium {
  border: 1px solid rgba(245, 217, 168, 0.3);
}

.model-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: white;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  flex-shrink: 0;
}

.model-logo.google {
  background: linear-gradient(135deg, #4285f4 0%, #34a853 50%, #fbbc05 100%);
}

.model-logo.openai {
  background: linear-gradient(135deg, #10a37f 0%, #0d8a6a 100%);
}

.model-logo.kling {
  background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
}

.model-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.model-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.model-tag {
  padding: 4px 8px;
  background: rgba(245, 217, 168, 0.2);
  color: var(--accent-primary);
  font-size: 11px;
  font-weight: 500;
  border-radius: 4px;
}

.models-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 14px;
}

.models-note svg {
  width: 18px;
  height: 18px;
  color: var(--accent-primary);
}

/* ========== 价格对比区块 ========== */
.price-compare {
  padding: 100px 0;
  background: var(--bg-primary);
}

.compare-table-wrapper {
  overflow-x: auto;
  margin-bottom: 48px;
}

.compare-table {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border-collapse: collapse;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  padding: 20px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.compare-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
}

.compare-table th.highlight-col {
  background: var(--bg-secondary);
  color: var(--accent-primary);
  position: relative;
}

.recommend-badge {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-primary);
  color: var(--accent-text);
  padding: 4px 16px;
  font-size: 12px;
  border-radius: 0 0 8px 8px;
}

.compare-table td.highlight-col {
  background: var(--bg-tertiary);
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.price-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
}

.expensive .price-value {
  color: #ff6b6b;
  text-decoration: line-through;
  opacity: 0.7;
}

.cheap .price-value {
  color: var(--accent-primary);
  font-size: 28px;
}

.price-note {
  font-size: 12px;
  color: var(--text-tertiary);
}

.compare-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
}

.compare-icon.yes {
  background: rgba(124, 154, 77, 0.2);
  color: var(--color-success);
}

.compare-icon.no {
  background: rgba(255, 107, 107, 0.2);
  color: #ff6b6b;
}

.compare-icon svg {
  width: 14px;
  height: 14px;
}

.savings-highlight {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  max-width: 600px;
  margin: 0 auto;
  padding: 24px 32px;
  background: linear-gradient(135deg, rgba(245, 217, 168, 0.15) 0%, rgba(245, 217, 168, 0.05) 100%);
  border: 1px solid rgba(245, 217, 168, 0.3);
  border-radius: var(--radius-lg);
}

.savings-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.savings-icon svg {
  width: 28px;
  height: 28px;
  color: var(--accent-text);
}

.savings-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
}

.savings-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-primary);
}

.savings-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ========== 滚动条 ========== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* 体验版按钮 */
.trial-btn {
  padding: 12px 32px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.trial-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}