/* ===== 下载框 ===== */
.cd-download-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    padding: 28px;
    margin: 30px 0;
    color: #fff;
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.3);
}
.cd-box-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.cd-box-header h3 { margin: 0; font-size: 19px; }
.cd-box-desc {
    background: rgba(255,255,255,0.15);
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 18px;
    font-size: 14px;
    line-height: 1.7;
}
.cd-pan-info { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }

/* ===== 网盘品牌卡片展示 ===== */
.cd-pan-card {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(255,255,255,0.95);
    padding: 10px 18px 10px 12px;
    border-radius: 14px;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
    border: 2px solid var(--pan-color, #667eea);
}
.cd-pan-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}
.cd-pan-icon-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--pan-bg, #f0f0f0);
    border-radius: 10px;
    flex-shrink: 0;
}
.cd-pan-icon-wrap svg {
    width: 22px;
    height: 22px;
    fill: var(--pan-color, #667eea);
}
.cd-pan-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
}
.cd-pan-name {
    color: #333;
    font-weight: 700;
    font-size: 14px;
    line-height: 1.2;
}
.cd-pan-code {
    color: var(--pan-color, #667eea);
    font-size: 12px;
    font-weight: 600;
    font-family: 'SF Mono', Monaco, monospace;
    background: var(--pan-bg, #f0f0f0);
    padding: 1px 6px;
    border-radius: 4px;
    line-height: 1.4;
}
.cd-pan-code-empty {
    color: #999;
    font-weight: 400;
    background: #f5f5f5;
}

.cd-download-btn {
    background: #fff;
    color: #667eea;
    border: none;
    padding: 13px 44px;
    border-radius: 28px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}
.cd-download-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }

/* ===== 弹窗 ===== */
.cd-modal {
    display: none;
    position: fixed;
    z-index: 99999;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(5px);
}
.cd-modal-content {
    background: #fff;
    margin: 8% auto;
    padding: 32px;
    border-radius: 18px;
    width: 90%;
    max-width: 420px;
    position: relative;
    text-align: center;
    color: #333;
    animation: cdSlideIn 0.35s ease;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
@keyframes cdSlideIn {
    from { transform: translateY(-40px) scale(0.95); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}
.cd-modal-close {
    position: absolute;
    right: 18px; top: 12px;
    font-size: 28px;
    cursor: pointer;
    color: #bbb;
    line-height: 1;
}
.cd-modal-close:hover { color: #333; }
.cd-verify-hint { color: #888; font-size: 13px; margin: -8px 0 18px 0; }

/* ===== 口令验证 ===== */
.cd-verify-form input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    margin: 16px 0;
    font-size: 15px;
    text-align: center;
    letter-spacing: 2px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}
.cd-verify-form input:focus { border-color: #667eea; outline: none; }

/* ===== 二维码 ===== */
.cd-verify-qrcode img { width: 180px; height: 180px; border-radius: 10px; margin: 16px 0; object-fit: cover; }

/* ===== 滑块验证 ===== */
.cd-verify-slider { padding: 10px 0; }
.cd-slider-track {
    width: 100%;
    height: 44px;
    background: #f5f5f5;
    border-radius: 22px;
    position: relative;
    margin: 20px 0;
    overflow: hidden;
    border: 2px solid #e8e8e8;
}
.cd-slider-target {
    position: absolute;
    width: 44px;
    height: 40px;
    top: 2px;
    background: rgba(102, 126, 234, 0.12);
    border: 2px dashed #667eea;
    border-radius: 20px;
    box-sizing: border-box;
}
.cd-slider-fill {
    position: absolute;
    left: 0; top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
    border-radius: 22px 0 0 22px;
}
.cd-slider-thumb {
    position: absolute;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    left: 0; top: 0;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    user-select: none;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
    z-index: 2;
    transition: transform 0.1s;
}
.cd-slider-thumb:active { cursor: grabbing; transform: scale(1.08); }

/* ===== 数学验证 ===== */
.cd-verify-math { padding: 10px 0; }
.cd-math-formula {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 22px 0;
    font-size: 26px;
    font-weight: 800;
    color: #333;
}
.cd-math-op { color: #667eea; font-size: 30px; }
.cd-math-formula input {
    width: 70px;
    height: 48px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    text-align: center;
    font-size: 24px;
    font-weight: 800;
    color: #333;
    outline: none;
}
.cd-math-formula input:focus { border-color: #667eea; }

/* ===== 通用按钮 & 错误 ===== */
.cd-verify-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    padding: 13px 40px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    margin-top: 12px;
    transition: opacity 0.2s;
}
.cd-verify-btn:hover { opacity: 0.92; }
.cd-verify-error {
    color: #e74c3c;
    font-size: 13px;
    margin-top: 12px;
    min-height: 20px;
}

@media (max-width: 480px) {
    .cd-modal-content { margin: 15% auto; padding: 24px; }
    .cd-math-formula { font-size: 22px; gap: 10px; }
    .cd-math-formula input { width: 60px; height: 42px; font-size: 22px; }
}