    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,sans-serif;
      background: #f5f6f8;
      color: #333;
      font-size: 14px;
    }
    .page {
      max-width: 480px;
      margin: 0 auto;
      min-height: 100vh;
      background: #fff;
      display: flex;
      flex-direction: column;
    }
    .tip-bar {
      width: 100%;
      padding: 0 15px;
      height: 30px;
      line-height: 30px;
      background: #ffecd5;
      color: #ff971b;
      font-size: 12px;
      white-space: nowrap;
      overflow: hidden;
    }
    .tip-text {
      display: inline-block;
      padding-left: 100%;
      animation: marquee 14s linear infinite;
    }
    @keyframes marquee {
      0%   { transform: translateX(0); }
      100% { transform: translateX(-100%); }
    }
    .section {
      padding: 12px 16px;
    }
    .top-info {
      border-bottom: 10px solid #f2f3f5;
    }
    .top-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 14px;
      margin-bottom: 10px;
      color: #7d808a;
    }
    .top-row .action {
      color: #306bff;
      cursor: pointer;
    }

    /* 金额区域 */
    .amount-row {
      display: flex;
      align-items: center;
      border-bottom: 1px solid #ececec;
      padding-bottom: 4px;
    }
    .amount-left {
      display: flex;
      align-items: center;
      flex: 1;
    }
    .amount-symbol {
      font-size: 24px;
      color: #46474b;
      margin-right: 2px;
    }
    .amount-input {
      border: none;
      outline: none;
      height: 50px;
      font-size: 32px;
      color: #ff3b30;
      max-width: 200px; 
      flex: 0 0 auto;
    }
    .amount-input::placeholder {
      font-size: 16px;
      color: #ccc;
    }
    .amount-hint {
      font-size: 12px;
      color: #7d808a;
      margin-left: 8px;
      white-space: nowrap;
    }
    .clear-btn {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: #eee;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      cursor: pointer;
      margin-left: 8px;
      color: #999;
    }
    .top-desc {
      margin-top: 8px;
      font-size: 12px;
      color: #7d808a;
    }

    .mid-section {
      background: #fff;
    }
    .mid-tip {
      text-align: center;
      background: #f3f6ff;
      color: #487dff;
      font-size: 12px;
      border-radius: 4px;
      padding: 6px 4px;
      margin-bottom: 12px;
    }
    .plan-card {
      display: flex;
      align-items: center;
      padding: 12px;
      border-radius: 6px;
      border: 1px solid #f0f0f0;
      margin-bottom: 10px;
      cursor: pointer;
      transition: border-color .2s, box-shadow .2s, transform .1s;
    }
    .plan-card.active {
      border-color: #3c75ff;
      box-shadow: 0 0 0 1px rgba(60,117,255,0.1);
      transform: translateY(-1px);
    }
    .plan-left {
      flex: 1;
    }
    .plan-title {
      display: flex;
      justify-content: space-between;
      font-size: 14px;
      color: #40414d;
      margin-bottom: 6px;
    }
    .plan-first {
      font-weight: 600;
    }
    .plan-interest {
      font-size: 12px;
      color: #999;
      text-align: right;
    }
    .plan-right {
      margin-left: 12px;
    }
    .plan-radio {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      border: 2px solid #d4d7de;
      position: relative;
    }
    .plan-card.active .plan-radio {
      border-color: #3c75ff;
    }
    .plan-card.active .plan-radio::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #3c75ff;
      transform: translate(-50%, -50%);
    }

    .mid-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 4px;
      font-size: 14px;
      color: #7d808a;
    }
    .mid-row span:last-child {
      color: #ff6839;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .bank-logo {
      height: 24px;
      border-radius: 999px;
    }

    .bottom {
      margin-top: 10px;
      background: #f2f3f5;
      flex: 1;
    }
    .bottom-inner {
      margin: 10px 16px 0;
      background: #fff;
      border-radius: 8px;
      padding: 16px;
    }
    .phone-row {
      background: #eff6ff;
      border-radius: 5px;
      padding: 0 12px;
      height: 44px;
      display: flex;
      align-items: center;
      font-size: 14px;
      color: #46474b;
    }
    .phone-row span {
      white-space: nowrap;
    }
    .phone-input {
      border: none;
      outline: none;
      background: transparent;
      margin-left: 12px;
      flex: 1;
      font-size: 15px;
      color: #333;
    }
    .submit-btn {
      margin-top: 12px;
      height: 44px;
      border-radius: 5px;
      background: #306bff;
      color: #fff;
      font-size: 16px;
      text-align: center;
      line-height: 44px;
      cursor: pointer;
      user-select: none;
    }
    .submit-btn:active {
      opacity: .85;
    }
    .agree-row {
      margin-top: 10px;
      font-size: 12px;
      color: #bababa;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 4px;
    }
    .agree-row input {
      width: 14px;
      height: 14px;
      margin-right: 4px;
    }
    .agree-row .link {
      color: #2b99ed;
      cursor: pointer;
    }
    .footer-text {
      text-align: center;
      padding: 18px 10px 26px;
      font-size: 12px;
      color: #999;
      line-height: 1.6;
    }

    .toast {
      position: fixed;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      background: rgba(0,0,0,.78);
      color: #fff;
      padding: 8px 14px;
      border-radius: 8px;
      font-size: 13px;
      max-width: 260px;
      text-align: center;
      z-index: 9999;
      opacity: 0;
      transition: opacity .25s;
      pointer-events: none;
    }
    .toast-show {
      opacity: 1;
    }
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.55);
      display: none;
      z-index: 10000;
    }
    .modal-box {
      position: fixed;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 90%;
      max-width: 520px;
      height: 75%;
      background: #fff;
      border-radius: 10px;
      display: none;
      z-index: 10001;
      box-shadow: 0 6px 20px rgba(0,0,0,.3);
      overflow: hidden;
      flex-direction: column;
    }
    .modal-header {
      padding: 10px 14px;
      font-size: 16px;
      font-weight: 600;
      text-align: center;
      border-bottom: 1px solid #eee;
      position: relative;
    }
    .modal-close-x {
      position: absolute;
      right: 12px;
      top: 10px;
      font-size: 18px;
      cursor: pointer;
      color: #999;
    }
    .modal-body {
      height: calc(100% - 96px);
      border-bottom: 1px solid #eee;
    }
    .modal-body iframe {
      border: none;
      width: 100%;
      height: 100%;
    }
    .modal-footer {
      padding: 10px 14px;
    }
    .modal-footer-btn {
      width: 100%;
      text-align: center;
      padding: 10px 0;
      background: #3b7bff;
      color: #fff;
      border-radius: 8px;
      font-size: 15px;
      cursor: pointer;
    }

    @media (max-width: 360px) {
      .amount-input {
        font-size: 26px;
      }
    }