/* ==================== VIP挑战弹窗样式 ==================== */
:root {
    --challenge-modal-primary: #667eea;
    --challenge-modal-primary-hover: #5a6fd8;
    --challenge-modal-warning: #f97316;
    --challenge-modal-success: #22c55e;
    --challenge-modal-info-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --challenge-modal-warning-bg: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    --challenge-modal-success-bg: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --challenge-modal-text: #1e293b;
    --challenge-modal-muted: #64748b;
    --challenge-modal-border: rgba(15, 23, 42, 0.08);
    --challenge-modal-shadow: 0 24px 48px rgba(15, 23, 42, 0.15);
    --challenge-modal-radius: 20px;
}

.challenge-modal,
.challenge-modal * {
    box-sizing: border-box;
    max-width: 100%;
}

.challenge-modal {
    max-width: 420px;
    width: min(92vw, 380px);
    background: #fff;
    border-radius: var(--challenge-modal-radius);
    box-shadow: var(--challenge-modal-shadow);
    padding: 20px;
    color: var(--challenge-modal-text);
    animation: challenge-modal-fade 0.25s ease-out;
    display: flex;
    flex-direction: column;
    max-height: calc(90vh - 32px);
    overflow: hidden;
    margin: 0 auto;
}

.challenge-modal__header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    text-align: center;
}

.challenge-modal__badge {
    align-self: center;
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.25);
}

.challenge-modal--start .challenge-modal__badge {
    background: var(--challenge-modal-info-bg);
}

.challenge-modal--cancel .challenge-modal__badge {
    background: var(--challenge-modal-warning-bg);
}

.challenge-modal--success .challenge-modal__badge {
    background: var(--challenge-modal-success-bg);
}

.challenge-modal__title {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    color: var(--challenge-modal-text);
}

.challenge-modal__subtitle {
    font-size: 14px;
    color: var(--challenge-modal-muted);
    margin: 0;
}

.challenge-modal__content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
    width: 100%;
}

.challenge-modal__info-card {
    border: 1px solid var(--challenge-modal-border);
    border-radius: 16px;
    padding: 12px 14px;
    background: linear-gradient(180deg, rgba(102, 126, 234, 0.05) 0%, rgba(102, 126, 234, 0.02) 100%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.challenge-modal__info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--challenge-modal-muted);
    padding: 4px 0;
    border-bottom: 1px dashed rgba(102, 126, 234, 0.15);
    flex-wrap: wrap;
    gap: 6px;
    width: 100%;
}

.challenge-modal__info-row:last-child {
    border-bottom: none;
}

.challenge-modal__info-label {
    font-weight: 500;
    flex: 0 0 auto;
    color: var(--challenge-modal-muted);
    max-width: 65%;
}

.challenge-modal__info-value {
    color: var(--challenge-modal-text);
    font-weight: 700;
    flex: 1 1 auto;
    text-align: right;
    word-break: break-word;
    white-space: normal;
    max-width: 35%;
}

.challenge-modal__highlight {
    border-radius: 14px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px dashed rgba(102, 126, 234, 0.25);
    font-size: 13px;
    color: var(--challenge-modal-muted);
    line-height: 1.5;
    word-break: break-word;
    white-space: normal;
    width: 100%;
}

.challenge-modal--cancel .challenge-modal__highlight {
    border-color: rgba(249, 115, 22, 0.25);
}

.challenge-modal__actions {
    display: flex;
    gap: 12px;
    margin-top: auto;
    width: 100%;
    flex-wrap: wrap;
}

.challenge-modal__btn {
    flex: 1 1 45%;
    border: none;
    border-radius: 12px;
    padding: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s.ease, box-shadow 0.2s ease;
    min-width: 140px;
}

.challenge-modal__btn:hover {
    transform: translateY(-2px);
}

.challenge-modal__btn--secondary {
    background: rgba(148, 163, 184, 0.12);
    color: var(--challenge-modal-muted);
}

.challenge-modal__btn--primary {
    background: var(--challenge-modal-info-bg);
    color: #fff;
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.24);
}

.challenge-modal--cancel .challenge-modal__btn--primary {
    background: var(--challenge-modal-warning-bg);
    box-shadow: 0 12px 24px rgba(249, 115, 22, 0.24);
}

.challenge-modal__btn--primary:active {
    transform: translateY(0);
}

.challenge-modal__footer-note {
    font-size: 12px;
    color: var(--challenge-modal-muted);
    text-align: center;
    margin-top: 8px;
}

@keyframes challenge-modal-fade {
    from {
        transform: translateY(12px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .challenge-modal {
        width: calc(100vw - 32px);
        padding: 18px;
    }

    .challenge-modal__actions {
        flex-direction: column;
    }

    .challenge-modal__btn {
        flex: 1 1 100%;
        min-width: 0;
    }
}