/* ==========================================================================
       暗夜赛博高饱和粉紫风 核心设计系统
       ========================================================================== */
    :root {
      --bg-main: #0a0714;
      --bg-darker: #05030a;
      --bg-card: rgba(23, 14, 42, 0.72);
      --bg-card-hover: rgba(36, 21, 66, 0.88);
      --card-border: rgba(255, 42, 133, 0.22);
      --card-border-hover: rgba(255, 42, 133, 0.55);
      
      --neon-pink: #ff2a85;
      --neon-magenta: #e024c3;
      --neon-purple: #9d4edd;
      --neon-violet: #bd00ff;
      --neon-cyan: #00f2fe;
      --neon-glow: 0 0 25px rgba(255, 42, 133, 0.45);
      --purple-glow: 0 0 35px rgba(157, 78, 221, 0.35);

      --text-white: #ffffff;
      --text-light: #f1edfa;
      --text-muted: #b1a7cb;
      --text-dim: #7d7299;

      --container-width: 1200px;
      --border-radius: 14px;
      --transition-fast: 0.24s cubic-bezier(0.16, 1, 0.3, 1);
      --transition-base: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-main);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      background: radial-gradient(circle at 50% -10%, #2a0845 0%, #0a0714 60%, #05030a 100%);
      background-attachment: fixed;
      color: var(--text-light);
      line-height: 1.68;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* 统一居中容器 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    a {
      color: var(--neon-pink);
      text-decoration: none;
      transition: all var(--transition-fast);
    }

    a:hover {
      color: var(--neon-cyan);
      text-shadow: 0 0 8px rgba(0, 242, 254, 0.4);
    }

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

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 7, 20, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255, 42, 133, 0.18);
      transition: background var(--transition-fast);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .ai-page-logo {
      height: 38px;
      width: auto;
      filter: drop-shadow(0 0 8px rgba(255, 42, 133, 0.4));
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      background: linear-gradient(120deg, #ffffff 30%, var(--neon-pink) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 严格遵从约束：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 13px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-light);
      position: relative;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--neon-pink);
    }

    .nav-links li a::after {
      content: "";
      position: absolute;
      bottom: 2px;
      left: 14px;
      right: 14px;
      height: 2px;
      background: var(--neon-pink);
      transform: scaleX(0);
      transition: transform var(--transition-fast);
    }

    .nav-links li a:hover::after {
      transform: scaleX(1);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: 30px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all var(--transition-base);
      white-space: nowrap;
      text-decoration: none;
    }

    .btn-cyber-primary {
      background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-violet) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 18px rgba(255, 42, 133, 0.4);
    }

    .btn-cyber-primary:hover {
      box-shadow: 0 6px 28px rgba(255, 42, 133, 0.7);
      transform: translateY(-2px);
      text-shadow: none;
    }

    .btn-cyber-outline {
      background: rgba(255, 42, 133, 0.08);
      border-color: rgba(255, 42, 133, 0.45);
      color: var(--text-white) !important;
    }

    .btn-cyber-outline:hover {
      background: rgba(255, 42, 133, 0.22);
      border-color: var(--neon-pink);
      box-shadow: 0 0 16px rgba(255, 42, 133, 0.35);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid rgba(255, 42, 133, 0.35);
      border-radius: 6px;
      color: var(--text-light);
      padding: 6px 10px;
      cursor: pointer;
      font-size: 1.2rem;
    }

    /* 严格遵从规则：首屏无任何图片资源 */
    .hero-section {
      position: relative;
      padding: 85px 0 70px;
      background: radial-gradient(circle at 50% 20%, rgba(189, 0, 255, 0.18) 0%, transparent 60%);
      overflow: hidden;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(255, 42, 133, 0.12);
      border: 1px solid rgba(255, 42, 133, 0.4);
      border-radius: 30px;
      font-size: 0.85rem;
      color: var(--neon-pink);
      margin-bottom: 24px;
      box-shadow: 0 0 20px rgba(255, 42, 133, 0.2);
    }

    .hero-title {
      font-size: clamp(2rem, 4.2vw, 3.2rem);
      font-weight: 900;
      letter-spacing: -0.5px;
      line-height: 1.25;
      margin-bottom: 22px;
      color: #ffffff;
      text-shadow: 0 0 30px rgba(255, 42, 133, 0.3);
    }

    .hero-title span {
      background: linear-gradient(120deg, #ff2a85 0%, #bd00ff 50%, #00f2fe 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: clamp(1rem, 1.8vw, 1.2rem);
      max-width: 820px;
      margin: 0 auto 36px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 55px;
    }

    .hero-cta-group .btn {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 20px;
    }

    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 24px 18px;
      transition: all var(--transition-base);
      backdrop-filter: blur(10px);
      text-align: left;
      position: relative;
      overflow: hidden;
    }

    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(to bottom, var(--neon-pink), var(--neon-violet));
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: var(--card-border-hover);
      box-shadow: var(--neon-glow);
    }

    .metric-val {
      font-size: 2.1rem;
      font-weight: 900;
      color: #ffffff;
      line-height: 1.1;
      margin-bottom: 6px;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .metric-val .unit {
      font-size: 1.1rem;
      color: var(--neon-pink);
    }

    .metric-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 0.8rem;
      color: var(--text-dim);
    }

    /* 通用区块头 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--neon-pink);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: clamp(1.75rem, 2.8vw, 2.35rem);
      font-weight: 800;
      color: #ffffff;
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 网格与卡片通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .cyber-card {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 30px 24px;
      transition: all var(--transition-base);
      backdrop-filter: blur(12px);
      position: relative;
    }

    .cyber-card:hover {
      transform: translateY(-5px);
      border-color: var(--neon-pink);
      box-shadow: 0 10px 30px rgba(255, 42, 133, 0.25);
      background: var(--bg-card-hover);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(255, 42, 133, 0.12);
      border: 1px solid rgba(255, 42, 133, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      color: var(--neon-pink);
      margin-bottom: 20px;
    }

    .card-title {
      font-size: 1.22rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 模型矩阵胶囊标签展示 */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-chip {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 42, 133, 0.25);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      color: var(--text-light);
      transition: all var(--transition-fast);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .model-chip::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--neon-pink);
      box-shadow: 0 0 6px var(--neon-pink);
    }

    .model-chip:hover {
      background: rgba(255, 42, 133, 0.18);
      border-color: var(--neon-pink);
      transform: translateY(-2px);
      color: #ffffff;
    }

    /* 一站式制作场景特色组件 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .scenario-item {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 24px;
      transition: all var(--transition-base);
    }

    .scenario-item:hover {
      border-color: var(--neon-purple);
      box-shadow: 0 8px 24px rgba(189, 0, 255, 0.25);
      transform: translateY(-3px);
    }

    .scenario-badge {
      display: inline-block;
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: 12px;
      background: rgba(189, 0, 255, 0.15);
      color: var(--neon-purple);
      border: 1px solid rgba(189, 0, 255, 0.35);
      margin-bottom: 12px;
    }

    .scenario-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }

    .scenario-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例图片展示模块 */
    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      overflow: hidden;
      transition: all var(--transition-base);
    }

    .case-card:hover {
      border-color: var(--neon-pink);
      box-shadow: var(--neon-glow);
    }

    .case-img-box {
      width: 100%;
      overflow: hidden;
      background: #000;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-box.square {
      aspect-ratio: 1 / 1;
    }

    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition-base);
    }

    .case-card:hover .case-img-box img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 22px;
    }

    .case-tag {
      font-size: 0.78rem;
      color: var(--neon-cyan);
      margin-bottom: 6px;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 流程步骤 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 28px 20px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-pink), var(--neon-violet));
      color: #ffffff;
      font-weight: 800;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 16px rgba(255, 42, 133, 0.4);
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 对比评测高亮专区 */
    .comparison-score-banner {
      background: linear-gradient(135deg, rgba(255, 42, 133, 0.15) 0%, rgba(189, 0, 255, 0.15) 100%);
      border: 1px solid rgba(255, 42, 133, 0.45);
      border-radius: var(--border-radius);
      padding: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 32px;
      box-shadow: 0 0 35px rgba(255, 42, 133, 0.2);
    }

    .score-left h3 {
      font-size: 1.5rem;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .score-left p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    .score-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .rating-stars {
      color: #ffd700;
      font-size: 1.5rem;
      letter-spacing: 2px;
    }

    .rating-val {
      font-size: 2.8rem;
      font-weight: 900;
      color: #ffffff;
      line-height: 1;
    }

    .rating-val span {
      font-size: 1.1rem;
      color: var(--text-dim);
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--border-radius);
      border: 1px solid var(--card-border);
      background: var(--bg-card);
    }

    .cyber-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .cyber-table th,
    .cyber-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }

    .cyber-table th {
      background: rgba(255, 42, 133, 0.12);
      color: #ffffff;
      font-weight: 700;
    }

    .cyber-table tr:hover td {
      background: rgba(255, 42, 133, 0.05);
    }

    .highlight-col {
      background: rgba(255, 42, 133, 0.08);
      font-weight: 600;
      color: #ffffff;
    }

    .status-badge-ok {
      color: var(--neon-cyan);
      font-weight: 700;
    }

    .status-badge-no {
      color: var(--text-dim);
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all var(--transition-base);
    }

    .review-card:hover {
      border-color: var(--neon-pink);
      transform: translateY(-4px);
      box-shadow: 0 10px 25px rgba(255, 42, 133, 0.2);
    }

    .review-body {
      font-size: 0.92rem;
      color: var(--text-light);
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 14px;
    }

    .user-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-pink), var(--neon-violet));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #ffffff;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .user-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
    }

    .user-role {
      font-size: 0.8rem;
      color: var(--neon-pink);
    }

    /* FAQ 手风琴 */
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 980px;
      margin: 0 auto;
    }

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

    .faq-item:hover {
      border-color: rgba(255, 42, 133, 0.4);
    }

    .faq-item.active {
      border-color: var(--neon-pink);
      box-shadow: 0 0 20px rgba(255, 42, 133, 0.15);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      text-align: left;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .faq-icon {
      font-size: 1.3rem;
      color: var(--neon-pink);
      transition: transform var(--transition-fast);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height var(--transition-base), padding var(--transition-base);
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.94rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 24px 20px;
    }

    /* 表单与联系我们板块 */
    .contact-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: start;
    }

    .form-box {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 36px;
      box-shadow: 0 0 30px rgba(255, 42, 133, 0.1);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(10, 7, 20, 0.7);
      border: 1px solid rgba(255, 42, 133, 0.25);
      border-radius: 8px;
      color: #ffffff;
      font-size: 0.95rem;
      transition: all var(--transition-fast);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--neon-pink);
      box-shadow: 0 0 12px rgba(255, 42, 133, 0.35);
    }

    select.form-control option {
      background: #140e28;
      color: #ffffff;
    }

    textarea.form-control {
      min-height: 120px;
      resize: vertical;
    }

    .contact-info-card {
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: var(--border-radius);
      padding: 36px;
    }

    .info-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 22px;
    }

    .info-item-icon {
      font-size: 1.3rem;
      color: var(--neon-pink);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .info-item-content h4 {
      font-size: 1rem;
      color: #ffffff;
      margin-bottom: 4px;
    }

    .info-item-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .qr-container {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      text-align: center;
    }

    .qr-container img {
      max-width: 150px;
      margin: 12px auto;
      border-radius: 10px;
      border: 2px solid var(--neon-pink);
      box-shadow: 0 0 20px rgba(255, 42, 133, 0.3);
    }

    /* 资讯与友情链接 */
    .news-card-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .news-link-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      background: var(--bg-card);
      border: 1px solid var(--card-border);
      border-radius: 10px;
      color: var(--text-light);
      transition: all var(--transition-fast);
    }

    .news-link-row:hover {
      border-color: var(--neon-pink);
      background: var(--bg-card-hover);
      transform: translateX(4px);
    }

    .news-link-row span.title {
      font-size: 0.95rem;
      font-weight: 500;
    }

    .news-link-row span.meta {
      font-size: 0.82rem;
      color: var(--neon-pink);
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-darker);
      border-top: 1px solid rgba(255, 42, 133, 0.2);
      padding: 60px 0 35px;
      margin-top: 60px;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.1rem;
      color: #ffffff;
      margin-bottom: 18px;
      position: relative;
    }

    .footer-col p {
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 14px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-list li a {
      color: var(--text-muted);
    }

    .footer-links-list li a:hover {
      color: var(--neon-pink);
    }

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      padding: 20px;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 42, 133, 0.15);
      border-radius: 10px;
      margin-bottom: 30px;
    }

    .friend-links-box a {
      color: var(--text-muted);
      font-size: 0.88rem;
      padding: 4px 10px;
      border-radius: 4px;
      background: rgba(255, 255, 255, 0.04);
    }

    .friend-links-box a:hover {
      color: #ffffff;
      background: var(--neon-pink);
    }

    .footer-bottom {
      text-align: center;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-dim);
      font-size: 0.85rem;
    }

    /* 浮动操作条 */
    .float-tools {
      position: fixed;
      right: 22px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-pink), var(--neon-violet));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      box-shadow: 0 4px 16px rgba(255, 42, 133, 0.5);
      border: none;
      cursor: pointer;
      transition: all var(--transition-fast);
      text-decoration: none;
    }

    .float-btn:hover {
      transform: scale(1.1);
      box-shadow: 0 6px 24px rgba(255, 42, 133, 0.75);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .scenario-grid, .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-layout {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #0d091e;
        border-bottom: 1px solid var(--neon-pink);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        gap: 0; /* 保持与规则一致 */
      }

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

      .nav-links li {
        width: 100%;
      }

      .nav-links li a {
        padding: 12px 0;
        display: block;
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      }

      .grid-3, .grid-4, .grid-2, .scenario-grid, .review-grid, .process-steps {
        grid-template-columns: 1fr;
      }

      .hero-metrics {
        grid-template-columns: 1fr;
      }

      .comparison-score-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }