/* ... (保持你原有的所有 CSS 不变) ... */
    :root {
      --bg-main: #111111;
      --bg-section: #181818;
      --bg-card: #202020;
      --text-main: #f4f4f4;
      --text-secondary: #c7c7c7;
      --accent: #ffb347;
      --accent-blue: #2f80ff;
      --accent-red: #ff5b5b;
      --border-soft: #2b2b2b;
    }
    * { box-sizing: border-box; }
    html, body {
      margin: 0;
      width: 100%;
      overflow-x: hidden;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }

    .top-bar {
      position: absolute;
      top: 10px;
      right: 16px;
      z-index: 10;
      display: flex;
      gap: 10px;
      align-items: center;
      font-size: 13px;
      padding: 6px 16px;
      border-radius: 999px;
      background: rgba(0, 0, 0, 0.25);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 179, 71, 0.15);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    .top-bar .login-status {
        font-size: 14px !important;
      font-size: 14px !important;
      color: #f7d794 !important;
      font-weight: 600;
      margin-right: auto;
      text-shadow: 0 0 8px rgba(255, 179, 71, 0.6), 0 0 12px rgba(255, 215, 0, 0.3);
    }
    .login-btn {
      padding: 7px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.6);
      background: rgba(255,255,255,0.15);
      color: #fff;
      cursor: pointer;
      font-size: 13px;
      font-weight: 500;
      transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      backdrop-filter: blur(4px);
    }
    .login-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    }
    /* 主按钮样式 - 加入读书会 */
    #registerBtn {
      background: linear-gradient(135deg, #ffb347 0%, #ff9f43 100%);
      border-color: rgba(255, 179, 71, 0.5);
      color: #1a1a1a;
      font-weight: 600;
      box-shadow: 0 2px 8px rgba(255, 179, 71, 0.3);
    }
    #registerBtn:hover {
      background: linear-gradient(135deg, #ffc947 0%, #ffb347 100%);
      box-shadow: 0 4px 16px rgba(255, 179, 71, 0.5);
      border-color: rgba(255, 179, 71, 0.8);
    }
    /* 次按钮样式 - 登录 */
    #loginBtn {
      background: transparent;
      border: 1.5px solid rgba(255, 255, 255, 0.5);
      color: #fff;
    }
    #loginBtn:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: rgba(255, 255, 255, 0.8);
    }
    /* 进入读书会按钮 */
    #goMemberBtn {
      background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
      border-color: rgba(46, 204, 113, 0.5);
      font-weight: 600;
      box-shadow: 0 2px 8px rgba(46, 204, 113, 0.3);
    }
    #goMemberBtn:hover {
      background: linear-gradient(135deg, #55efc4 0%, #2ecc71 100%);
      box-shadow: 0 4px 16px rgba(46, 204, 113, 0.5);
    }

    .login-modal-backdrop {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.6);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 100;
      overflow-x: hidden;
      overflow-y: auto;
    }
    .login-modal {
      background: #1f1f1f;
      padding: 20px 24px;
      border-radius: 12px;
      width: 320px;
      max-width: 90%;
      max-height: 90vh;
      overflow-x: hidden;
      overflow-y: auto;
      box-shadow: 0 12px 40px rgba(0,0,0,0.6);
      box-sizing: border-box;
    }
    .login-modal h3 {
      margin: 0 0 12px;
      font-size: 18px;
    }
    .login-modal label {
      display: block;
      font-size: 13px;
      margin: 8px 0 4px;
    }
    .login-modal input,
    .login-modal select {
      width: 100%;
      max-width: 100%;
      padding: 6px 8px;
      border-radius: 6px;
      border: 1px solid #444;
      background: #111;
      color: #f4f4f4;
      font-size: 13px; /* 与标签字号一致 */
      box-sizing: border-box;
      overflow: hidden;
    }
    .login-modal-actions {
      margin-top: 14px;
      display: flex;
      
      gap: 8px;
      font-size: 13px;
    }
    .btn-secondary {
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid #555;
      background: transparent;
      color: #eee;
      cursor: pointer;
    }
    .btn-primary {
      padding: 6px 12px;
      border-radius: 999px;
      border: none;
      background: var(--accent);
      color: #000;
      cursor: pointer;
    }
    .login-status {
      font-size: 12px;
      color: var(--text-secondary);
    }
    .login-error {
      margin-top: 6px;
      font-size: 12px;
      color: #ff6b6b;
    }

    /* 保持原有的所有其他样式 */
    .hero-banner {
      position: relative;
      width: 100%;
      background-color: #000;
      overflow: hidden;
    }
    .hero-wrapper {
      position: relative;
    }
    .hero-banner img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      transition: filter 0.4s ease;
    }
    /* 底部渐变遮罩 */
    .hero-banner::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 80px;
      background: linear-gradient(to top, rgba(17, 17, 17, 0.6) 0%, transparent 100%);
      pointer-events: none;
    }
    /* 暗角效果 */
    .hero-banner::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, 0.3) 100%);
      pointer-events: none;
    }
    /* 底部金色装饰线 */
    .hero-banner .hero-gold-line {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent 0%, rgba(255, 179, 71, 0.6) 50%, transparent 100%);
      pointer-events: none;
    }
    /* 悬浮效果 */
    .hero-banner:hover img {
      filter: brightness(1.08) saturate(1.1);
    }
    @media (max-width: 768px) {
      .hero-wrapper {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
      }
      .top-bar {
        position: static;
        margin: 8px 8px 0 0;
        flex-wrap: nowrap;
        gap: 6px;
        
        padding: 5px 10px;
        font-size: 12px;
      }
      .top-bar .login-status {
        font-size: 16px !important;
        margin-right: auto;
        white-space: nowrap;
      }
      .login-btn {
        padding: 5px 10px;
        font-size: 12px;
        white-space: nowrap;
      }
      #langToggle {
        font-size: 11px !important;
        padding: 3px 8px !important;
        white-space: nowrap;
      }
      .hero-banner img {
        height: 180px;
        object-fit: cover;
        object-position: center;
      }
      .login-modal-backdrop {
        align-items: flex-end;
        overflow-x: hidden;
      }
      .login-modal {
        width: 100%;
        max-width: 100%;
        margin: 0;
        border-radius: 16px 16px 0 0;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        transform: none;
        padding: 16px 18px 20px;
        box-sizing: border-box;
        max-height: 85vh;
        overflow-x: hidden;
        overflow-y: auto;
      }
      .login-modal input,
      .login-modal select {
        font-size: 16px !important; /* 防止移动端自动缩放 */
      }
    }

    section {
      padding: 20px 0;
      border-bottom: 1px solid var(--border-soft);
      background-color: var(--bg-main);
    }
    @media (max-width: 768px) {
      #welcome {
        padding-top: 0px;
      }
    }
    h2.section-title {
      font-size: 22px;
      line-height: 1.3;
      margin: 0 0 10px;
      padding: 0 8px;
    }
    @media (max-width: 768px) {
      h2.section-title {
        line-height: 1.25;
        margin: 0 0 8px;
        padding: 0 20px;
      }
    }

    .welcome-card {
      background-color: var(--bg-section);
      border-radius: 0px;
      padding: 0px 0px;
      text-align: left;
      line-height: 0;
    }
    .welcome-poem {
      text-align: center;
      line-height: 1.8;
      font-size: 20px;
      white-space: pre-line;
      margin-top: 0;
      margin-bottom: 10px;
    }
    .welcome-note {
      font-size: 14px;
      color: var(--text-secondary);
      padding: 0 32px;
    }
    @media (max-width: 768px) {
      .welcome-note {
        padding: 0 16px;
      }
    }

    .carousel-container {
      width: 100%;
      position: relative;
      overflow: hidden;
      border-radius: 20px;
      background: linear-gradient(135deg, #1a1a1a 0%, #252525 100%);
      box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    }
    .carousel-track {
      display: flex;
      width: 100%;
      height: 280px;
      transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .carousel-slide {
      min-width: 100%;
      height: 280px;
      display: flex;
      justify-content: center;
      align-items: center;
      position: relative;
      cursor: pointer;
      text-decoration: none;
      color: inherit;
      overflow: hidden;
    }
    /* 装饰性云纹背景 */
    .carousel-slide::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 60%;
      height: 200%;
      background: radial-gradient(ellipse, rgba(255, 215, 0, 0.03) 0%, transparent 100%);
      pointer-events: none;
    }
    .carousel-slide::after {
      content: '';
      position: absolute;
      bottom: -30%;
      left: -10%;
      width: 50%;
      height: 150%;
      background: radial-gradient(ellipse, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
      pointer-events: none;
    }
    .carousel-slide.text-mode {
      color: #fff;
      flex-direction: column;
      padding: 28px 32px;
      box-sizing: border-box;
      text-align: center;
      position: relative;
    }
    /* 第一张轮播图：青翠竹子绿 */
    .carousel-slide.text-mode:nth-child(1) {
      background: radial-gradient(circle at 50% 50%, #7cb87c 0%, #5a9a5a 100%);
    }
    /* 第二张轮播图：桃花粉红 */
    .carousel-slide.text-mode:nth-child(2) {
      background: radial-gradient(circle at 50% 50%, #f4a7b9 0%, #e87f9e 100%);
    }
    /* 添加微妙纹理，避免单调 */
    .carousel-slide.text-mode::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(
        ellipse at 30% 30%,
        rgba(255,255,255,0.04) 0%,
        transparent 60%
      );
      pointer-events: none;
      z-index: 0;
    }
    .carousel-slide.text-mode > * {
      position: relative;
      z-index: 1;
    }
    .carousel-slide h3 {
      margin: 0 0 12px 0;
      font-size: 24px;
      letter-spacing: 2px;
      font-weight: 700;
      text-shadow:
        0 2px 4px rgba(0,0,0,0.4),
        0 4px 8px rgba(0,0,0,0.3);
    }
    .carousel-slide p {
      margin: 0 0 6px 0;
      font-size: 17px;
      opacity: 1;
      max-width: 580px;
      line-height: 1.7;
      text-shadow:
        0 1px 3px rgba(0,0,0,0.5),
        0 2px 6px rgba(0,0,0,0.3);
    }
    .carousel-btn {
      margin-top: 18px;
      background: rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(8px);
      padding: 10px 26px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      border: 1.5px solid rgba(255, 255, 255, 0.5);
      transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      box-shadow: 0 4px 15px rgba(0,0,0,0.2);
      display: inline-block;
    }
    .carousel-btn:hover {
      background: rgba(255, 255, 255, 0.95);
      color: #c0392b;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    }
    .carousel-dots {
      position: absolute;
      bottom: 14px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 10px;
      z-index: 10;
      padding: 6px 14px;
      background: rgba(0, 0, 0, 0.25);
      backdrop-filter: blur(10px);
      border-radius: 999px;
    }
    .dot {
      width: 10px;
      height: 10px;
      background: rgba(255, 255, 255, 0.4);
      border-radius: 50%;
      cursor: pointer;
      transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }
    .dot:hover {
      background: rgba(255, 255, 255, 0.7);
      transform: scale(1.2);
    }
    .dot.active {
      background: #fff;
      width: 28px;
      border-radius: 5px;
      box-shadow: 0 0 12px rgba(255, 215, 0, 0.6), 0 2px 6px rgba(0,0,0,0.3);
    }
    .carousel-arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(10px);
      color: #fff;
      border: 1.5px solid rgba(255, 255, 255, 0.3);
      padding: 0;
      cursor: pointer;
      font-size: 16px;
      font-weight: bold;
      border-radius: 50%;
      width: 46px;
      height: 46px;
      display: flex;
      justify-content: center;
      align-items: center;
      transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      box-shadow: 0 4px 15px rgba(0,0,0,0.25);
      z-index: 10;
    }
    .carousel-arrow:hover {
      background: rgba(255, 255, 255, 0.95);
      color: #333;
      transform: translateY(-50%) scale(1.15);
      box-shadow: 0 6px 25px rgba(0,0,0,0.35);
    }
    .prev { left: 14px; }
    .next { right: 14px; }

    @media (max-width: 768px) {
      .carousel-track {
        height: 220px;
      }
      .carousel-slide {
        height: 220px;
      }
      .carousel-slide.text-mode {
        padding: 20px 20px;
      }
      .carousel-slide h3 { font-size: 18px; letter-spacing: 1px; }
      .carousel-slide p { font-size: 15px; line-height: 1.6; max-width: 100%; }
      .carousel-btn { padding: 8px 18px; font-size: 13px; margin-top: 14px; }
      .carousel-arrow { width: 38px; height: 38px; font-size: 14px; }
      .prev { left: 10px; }
      .next { right: 10px; }
    }

    .panorama-block {
      background-color: var(--bg-section);
      border-radius: 14px;
      padding: 10px 0 0;
    }
    .panorama-inner {
      position: relative;
      width: 100%;
      height: 420px;
      overflow: hidden;
      background: #000;
    }
    .panorama-inner iframe {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      border: 0;
    }

    .gallery-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 18px;
    }
    .gallery-tag {
      font-size: 13px;
      padding: 3px 10px;
      border-radius: 999px;
      background-color: #222;
      color: var(--text-secondary);
    }
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 18px;
    }
    .gallery-card {
      background-color: var(--bg-section);
      border-radius: 14px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      border: 1px solid transparent;
    }
    .gallery-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 28px rgba(255, 179, 71, 0.25);
      border-color: rgba(255, 179, 71, 0.4);
    }
    .gallery-card img {
      height: 150px;
      object-fit: cover;
      transition: filter 0.3s ease;
    }
    .gallery-card:hover img {
      filter: brightness(1.1) saturate(1.15);
    }
    @media (min-width: 1024px) {
      .gallery-card img {
        height: 280px;
      }
    }
    .gallery-card-body {
      padding: 14px 16px 16px;
    }
    .gallery-card-title {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 6px;
    }
    .gallery-card-meta {
      font-size: 14px;
      color: var(--text-secondary);
    }

    footer {
      padding: 32px 16px 40px;
      background-color: var(--bg-main);
      border-top: 1px solid var(--border-soft);
      text-align: center;
      font-size: 13px;
      color: var(--text-secondary);
    }
    .footer-poem {
      margin-bottom: 18px;
      line-height: 1.8;
      font-size: 16px;
      color: var(--text-main);
    }
    .footer-note {
      margin-bottom: 8px;
      font-size: 14px;
      color: var(--text-secondary);
      padding: 0 16px;
      text-align: left;
    }
    .footer-links {
      margin: 20px 0;
      font-size: 13px;
      color: var(--text-secondary);
    }
    .footer-links a {
      color: var(--text-secondary);
      margin: 0 8px;
      transition: color 0.3s ease;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-links span {
      margin: 0 4px;
      color: var(--border-soft);
    }
    @media (max-width: 768px) {
      .footer-note {
        padding: 0 6px;
      }
      .footer-links {
        font-size: 12px;
      }
      .footer-links a {
        margin: 0 4px;
      }
    }

    /* 金银闪烁粒子背景 */
    #sparkleCanvas {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 0;
      opacity: 0.25;
    }

    /* 条款确认弹窗样式 */
    .terms-modal-backdrop {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.7);
      backdrop-filter: blur(8px);
      z-index: 1000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .terms-modal-backdrop.active {
      display: flex;
    }
    .terms-modal {
      background: var(--bg-card);
      border-radius: 16px;
      max-width: 600px;
      width: 100%;
      max-height: 80vh;
      display: flex;
      flex-direction: column;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
      border: 1px solid var(--border-soft);
    }
    .terms-modal-header {
      padding: 24px 24px 16px;
      border-bottom: 1px solid var(--border-soft);
      flex-shrink: 0;
    }
    .terms-modal-header h2 {
      margin: 0;
      font-size: 20px;
      color: var(--text-main);
    }
    .terms-modal-content {
      padding: 20px 24px;
      overflow-y: auto;
      flex: 1;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
    }
    .terms-modal-content h3 {
      color: var(--text-main);
      font-size: 16px;
      margin-top: 16px;
      margin-bottom: 8px;
    }
    .terms-modal-content h3:first-child {
      margin-top: 0;
    }
    .terms-modal-content p {
      margin-bottom: 12px;
    }
    .terms-modal-content ul {
      margin-bottom: 12px;
      padding-left: 20px;
    }
    .terms-modal-footer {
      padding: 16px 24px 24px;
      border-top: 1px solid var(--border-soft);
      flex-shrink: 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }
    .terms-modal-footer button {
      flex: 1;
      padding: 12px 24px;
      border: none;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .terms-modal-footer .btn-agree {
      background: linear-gradient(135deg, #ffb347 0%, #ff9f43 100%);
      color: #1a1a1a;
    }
    .terms-modal-footer .btn-agree:hover:not(:disabled) {
      transform: translateY(-2px);
      box-shadow: 0 4px 16px rgba(255, 179, 71, 0.4);
    }
    .terms-modal-footer .btn-agree:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      background: var(--bg-section);
      color: var(--text-secondary);
    }
    .terms-modal-footer .terms-link {
      font-size: 13px;
      color: var(--accent);
      white-space: nowrap;
    }
    .terms-modal-footer .terms-link:hover {
      text-decoration: underline;
    }
    .scroll-hint {
      text-align: center;
      font-size: 12px;
      color: var(--text-secondary);
      padding: 8px 0;
      animation: pulse 2s ease-in-out infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 0.6; }
      50% { opacity: 1; }
    }
    @media (max-width: 600px) {
      .terms-modal {
        max-height: 90vh;
      }
      .terms-modal-footer {
        flex-direction: column;
      }
      .terms-modal-footer button {
        width: 100%;
      }
      .terms-modal-footer .terms-link {
        width: 100%;
        text-align: center;
      }
    }

    /* 早鸟通知弹窗样式 */
    .early-bird-modal-backdrop {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.7);
      z-index: 1100;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .early-bird-modal-backdrop.active {
      display: flex;
    }
    .early-bird-modal {
      background: linear-gradient(135deg, #1a1a1a 0%, #252525 100%);
      border-radius: 20px;
      max-width: 520px;
      width: 100%;
      max-height: 85vh;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
      border: 1px solid rgba(255, 179, 71, 0.2);
      animation: slideUp 0.3s ease-out;
    }
    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    .early-bird-modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      background: linear-gradient(135deg, rgba(255, 179, 71, 0.15) 0%, rgba(255, 159, 67, 0.1) 100%);
      border-bottom: 1px solid rgba(255, 179, 71, 0.2);
    }
    .early-bird-modal-header h2 {
      margin: 0;
      font-size: 20px;
      font-weight: 600;
      color: #ffb347;
    }
    .early-bird-close {
      background: none;
      border: none;
      color: #aaa;
      font-size: 28px;
      cursor: pointer;
      padding: 0;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      transition: all 0.2s;
    }
    .early-bird-close:hover {
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
    }
    .early-bird-modal-content {
      padding: 20px 24px;
      max-height: 55vh;
      overflow-y: auto;
    }
    .early-bird-modal-content::-webkit-scrollbar {
      width: 6px;
    }
    .early-bird-modal-content::-webkit-scrollbar-track {
      background: rgba(255, 255, 255, 0.05);
      border-radius: 3px;
    }
    .early-bird-modal-content::-webkit-scrollbar-thumb {
      background: rgba(255, 179, 71, 0.3);
      border-radius: 3px;
    }
    .early-bird-subtitle {
      text-align: center;
      color: #f4f4f4;
      font-size: 15px;
      margin: 0 0 16px 0;
      font-weight: 500;
    }
    .early-bird-section {
      margin-bottom: 16px;
      padding: 12px 14px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: 10px;
      border-left: 3px solid #ffb347;
    }
    .early-bird-section-title {
      font-weight: 600;
      color: #ffb347;
      font-size: 14px;
      margin-bottom: 8px;
    }
    .early-bird-text {
      color: #dfe6e9;
      font-size: 13px;
      line-height: 1.6;
    }
    .early-bird-price-item {
      margin-bottom: 8px;
      font-size: 13px;
    }
    .early-bird-price-label {
      color: #ccc;
    }
    .early-bird-price {
      color: #55efc4;
      font-weight: 600;
      font-size: 15px;
    }
    .early-bird-price-original {
      color: #888;
      font-size: 12px;
    }
    .early-bird-footer {
      text-align: center;
      color: #aaa;
      font-size: 12px;
      margin-top: 12px;
      padding-top: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .early-bird-modal-footer {
      padding: 16px 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      text-align: center;
    }
    .btn-early-bird {
      background: linear-gradient(135deg, #ffb347 0%, #ff9f43 100%);
      color: #1a1a1a;
      border: none;
      padding: 12px 32px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
      box-shadow: 0 4px 15px rgba(255, 179, 71, 0.3);
    }
    .btn-early-bird:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 179, 71, 0.5);
      background: linear-gradient(135deg, #ffc947 0%, #ffb347 100%);
    }
    @media (max-width: 768px) {
      .early-bird-modal {
        max-height: 90vh;
      }
      .early-bird-modal-header {
        padding: 16px 18px;
      }
      .early-bird-modal-header h2 {
        font-size: 17px;
      }
      .early-bird-modal-content {
        padding: 16px 18px;
        max-height: 60vh;
      }
      .early-bird-modal-footer {
        padding: 14px 18px;
      }
      .btn-early-bird {
        width: 100%;
        padding: 12px 24px;
        font-size: 14px;
      }
    }

    /* 黄色霓虹灯边框效果 */
    .neon-region-select {
      border: 2px solid #f1c40f !important;
      box-shadow: 0 0 8px #f1c40f, 0 0 16px #f1c40f, 0 0 4px #f1c40f inset;
      animation: neon-pulse 2s ease-in-out infinite alternate;
    }

    @keyframes neon-pulse {
      0% {
        box-shadow: 0 0 8px #f1c40f, 0 0 16px #f1c40f, 0 0 4px #f1c40f inset;
      }
      100% {
        box-shadow: 0 0 12px #f1c40f, 0 0 24px #f1c40f, 0 0 6px #f1c40f inset;
      }
    }

    /* 书籍展示区域 */
    .books-showcase-section {
      padding: 8px 0;
      background: linear-gradient(180deg, #111 0%, #181818 100%);
    }

    .section-title {
      text-align: center;
      font-size: 28px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    /* 堆叠容器 - 全屏自适应 */
    .books-stack-container {
      position: relative;
      width: 100%;
      max-width: 100%;
      height: 280px;
      margin: 0 auto;
      padding: 0 20px;
      /* 强制创建渲染层 */
      background: #111;
    }

    .books-stack {
      position: relative;
      width: 100%;
      height: 100%;
      overflow: hidden;
      /* 强制创建渲染层 */
      background: #111;
    }

    /* 走马灯滚动轨道 */
    .books-stack-track {
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      display: flex;
      align-items: center;
      background: #111;
    }

    /* 书籍卡片 */
    .book-card {
      width: 200px;
      flex-shrink: 0;
      border-radius: 12px;
      overflow: hidden;
      background: #1a1a1a;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
      margin-left: -30px;
      /* 禁用交互，防止黑屏 */
      pointer-events: none;
    }

    .book-card:first-child {
      margin-left: 20px;
    }

    .book-card-cover {
      width: 100%;
      aspect-ratio: 3 / 4;
      object-fit: cover;
      background: #1a1a1a;
      display: block;
      border: none;
      outline: none;
    }

    /* 响应式 */
    @media (max-width: 768px) {
      .books-showcase-section {
        padding: 8px 0;
      }

      .section-title {
        margin-bottom: 6px;
      }

      .books-stack-container {
        height: 180px;
        padding: 0 10px;
      }

      .book-card {
        width: 110px;
        margin-left: -20px;
      }

      .book-card:first-child {
        margin-left: 10px;
      }
    }