/* ===== 应用下载页专属样式 ===== */

    /* ---- Hero 区域（覆盖 common.css 高度） ---- */
    .hero-section {
      height: 380px;
    }

    /* 星空深色底带：覆盖 Hero + 下载卡片区域 */
    .page-bg-img {
      height: 1120px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-bottom: 0;
    }

    .btn-primary {
      background: linear-gradient(135deg, #7c3aed, #4f46e5);
      color: white;
      border: none;
      text-decoration: none;
      padding: 18px 44px;
      border-radius: 60px;
      font-weight: 600;
      font-size: 18px;
      display: inline-flex;
      align-items: center;
      gap: 12px;
      transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
      box-shadow: 0 8px 32px rgba(124, 58, 237, 0.35), 0 2px 8px rgba(124, 58, 237, 0.2);
      cursor: pointer;
      letter-spacing: 0.01em;
    }

    .btn-primary i { font-size: 18px; }

    .btn-primary:hover {
      transform: translateY(-4px) scale(1.03);
      box-shadow: 0 16px 48px rgba(124, 58, 237, 0.45), 0 4px 12px rgba(79, 70, 229, 0.3);
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(12px);
      color: rgba(255, 255, 255, 0.9);
      border: 1.5px solid rgba(167, 139, 250, 0.35);
      text-decoration: none;
      padding: 18px 44px;
      border-radius: 60px;
      font-weight: 600;
      font-size: 18px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
      cursor: pointer;
      letter-spacing: 0.01em;
    }

    .btn-outline i { color: #a78bfa; font-size: 18px; }

    .btn-outline:hover {
      border-color: #a78bfa;
      background: rgba(255, 255, 255, 0.15);
      box-shadow: 0 8px 28px rgba(124, 58, 237, 0.25);
      transform: translateY(-3px);
    }

    /* 浅色背景上的描边按钮（CTA 区域） */
    .btn-outline-light {
      color: #3b2a75;
      background: rgba(255, 255, 255, 0.7);
      border-color: rgba(124, 58, 237, 0.28);
    }

    .btn-outline-light i { color: #7c3aed; }

    .btn-outline-light:hover {
      color: #3b2a75;
      background: rgba(255, 255, 255, 0.95);
      border-color: #7c3aed;
    }

    /* ---- 下载入口 ---- */
    .download-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
      margin-bottom: 128px;
      margin-top: 32px;
      scroll-margin-top: 120px;
    }

    .download-card {
      background: rgba(11, 14, 35, 0.72);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 32px;
      padding: 36px 40px 32px;
      box-shadow: 0 20px 48px rgba(0, 0, 0, 0.28);
      display: flex;
      flex-direction: column;
      transition: all 0.35s ease;
    }

    .download-card:hover {
      border-color: rgba(167, 139, 250, 0.4);
      box-shadow: 0 24px 60px rgba(124, 58, 237, 0.28);
      transform: translateY(-4px);
    }

    .dl-card-head {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 24px;
    }

    .dl-icon {
      width: 58px;
      height: 58px;
      border-radius: 18px;
      background: rgba(124, 58, 237, 0.2);
      color: #a78bfa;
      font-size: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .dl-card-title h3 {
      font-size: 22px;
      font-weight: 700;
      color: #ffffff;
      letter-spacing: -0.01em;
      margin-bottom: 4px;
    }

    .dl-card-title p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.55);
    }

    /* iOS 二维码 */
    .qr-box {
      align-self: center;
      background: #ffffff;
      border-radius: 20px;
      padding: 14px;
      line-height: 0;
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
    }

    .qr-box img {
      display: block;
      width: 200px;
      height: auto;
      border-radius: 8px;
    }

    .qr-tip {
      margin-top: 22px;
      text-align: center;
      font-size: 15px;
      color: rgba(255, 255, 255, 0.8);
      font-weight: 500;
    }

    .qr-tip i {
      color: #a78bfa;
      margin-right: 6px;
    }

    .qr-note {
      margin-top: 8px;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      line-height: 1.6;
    }

    /* Android 安装包 */
    .apk-box {
      background: rgba(255, 255, 255, 0.05);
      border: 1px dashed rgba(167, 139, 250, 0.35);
      border-radius: 22px;
      padding: 26px 28px;
    }

    .apk-file {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 14px;
      margin-bottom: 22px;
    }

    .apk-file > i {
      font-size: 30px;
      color: #a78bfa;
    }

    .apk-name {
      font-size: 16px;
      font-weight: 600;
      color: #ffffff;
      letter-spacing: 0.01em;
    }

    .apk-meta {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
      margin-top: 4px;
    }

    .apk-btn {
      width: 100%;
      justify-content: center;
    }

    /* 卡片底部说明 */
    .dl-points {
      list-style: none;
      margin-top: 26px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .dl-points li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.68);
      line-height: 1.6;
    }

    .dl-points li i {
      color: #a78bfa;
      font-size: 15px;
      margin-top: 3px;
      flex-shrink: 0;
    }

    /* ---- 分区标题 ---- */
    .dl-section-title {
      text-align: center;
      margin: 0 0 48px;
    }

    .section-label {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: #7c3aed;
      background: rgba(124, 58, 237, 0.08);
      padding: 6px 18px;
      border-radius: 20px;
      margin-bottom: 16px;
    }

    .dl-section-title h2 {
      font-size: 44px;
      font-weight: 800;
      letter-spacing: -0.03em;
      color: #0b1a33;
      margin-bottom: 16px;
    }

    .dl-section-title p {
      color: #64748b;
      font-size: 18px;
      max-width: 600px;
      margin: 0 auto;
      line-height: 1.6;
    }

    /* ---- 应用能力 ---- */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-bottom: 128px;
    }

    .feature-card {
      background: rgba(255, 255, 255, 0.6);
      backdrop-filter: blur(12px);
      border-radius: 26px;
      padding: 32px 26px;
      border: 1px solid rgba(255, 255, 255, 0.6);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.03);
      text-align: center;
      transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

    .feature-card:hover {
      transform: translateY(-6px);
      background: rgba(255, 255, 255, 0.85);
      border-color: rgba(124, 58, 237, 0.2);
      box-shadow: 0 24px 56px rgba(124, 58, 237, 0.1);
    }

    .feature-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 18px;
      border-radius: 18px;
      background: rgba(124, 58, 237, 0.08);
      color: #7c3aed;
      font-size: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s;
    }

    .feature-card:hover .feature-icon {
      background: rgba(124, 58, 237, 0.15);
      transform: scale(1.06);
    }

    .feature-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: #0b1a33;
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: #475569;
      line-height: 1.7;
    }

    /* ---- 安装指引 ---- */
    .guide-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
      margin-bottom: 64px;
    }

    .guide-card {
      background: rgba(255, 255, 255, 0.6);
      backdrop-filter: blur(12px);
      border-radius: 28px;
      padding: 34px 36px;
      border: 1px solid rgba(255, 255, 255, 0.6);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.03);
    }

    .guide-head {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 22px;
    }

    .guide-head > i {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      background: rgba(124, 58, 237, 0.08);
      color: #7c3aed;
      font-size: 26px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .guide-head h4 {
      font-size: 20px;
      font-weight: 700;
      color: #0b1a33;
      letter-spacing: -0.01em;
    }

    .guide-steps {
      list-style: none;
    }

    .guide-steps li {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 14px 0;
      font-size: 15px;
      color: #475569;
      line-height: 1.7;
      border-bottom: 1px dashed rgba(124, 58, 237, 0.12);
    }

    .guide-steps li:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .guide-steps .step-num {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: rgba(124, 58, 237, 0.1);
      color: #7c3aed;
      font-size: 13px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      margin-top: 3px;
    }

    /* ---- CTA ---- */
    .cta-section {
      text-align: center;
      padding: 56px 0 48px;
    }

    .cta-section h2 {
      font-size: 40px;
      font-weight: 800;
      letter-spacing: -0.03em;
      color: #0b1a33;
      margin-bottom: 20px;
    }

    .cta-section p {
      font-size: 18px;
      color: #64748b;
      margin-bottom: 36px;
      line-height: 1.6;
    }

    /* ---- 响应式 ---- */
    @media (max-width: 1400px) {
      .hero-section { height: 360px; }
      .page-bg-img { height: 1120px; }
      .download-card { padding: 32px 32px 28px; }
    }

    @media (max-width: 1200px) {
      .hero-section { height: 340px; }
      .page-bg-img { height: 1120px; }
      .download-grid { gap: 24px; }
      .feature-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 1024px) {
      .hero-section { height: 325px; }
      .page-bg-img { height: 1580px; }
      .download-grid { grid-template-columns: 1fr; margin-bottom: 104px; }
      .guide-grid { grid-template-columns: 1fr; }
      .download-card { padding: 30px 28px 26px; }
    }

    @media (max-width: 768px) {
      .hero-section { height: 400px; }
      .page-bg-img { height: 1560px; }
      .download-card { padding: 28px 24px 24px; border-radius: 26px; }
      .qr-box img { width: 180px; }
      .dl-section-title h2 { font-size: 30px; }
      .dl-section-title p { font-size: 16px; }
      .feature-grid { grid-template-columns: 1fr; margin-bottom: 96px; }
      .download-grid { margin-bottom: 96px; }
      .guide-card { padding: 28px 24px; }
      .cta-section h2 { font-size: 30px; }
      .apk-box { padding: 22px 20px; }
      .apk-btn, .btn-primary, .btn-outline { padding: 16px 32px; font-size: 16px; }
    }

    @media (max-width: 480px) {
      .hero-badge { font-size: 12px; padding: 8px 18px; }
      .download-card { padding: 24px 20px 22px; }
      .qr-box img { width: 160px; }
      .hero-actions { gap: 14px; }
    }