/* 统一支付弹窗：跟暖白 / 暗红主题变量，圆角国风 */
.xy-checkout-overlay {
    position: fixed;
    inset: 0;
    z-index: 1320;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
    background: rgba(var(--overlay-rgb, 80, 50, 20), 0.55);
    backdrop-filter: blur(2px);
}

.xy-checkout-overlay:not(.is-open) {
    display: none !important;
}

.xy-checkout-overlay.is-open {
    display: flex;
    background: var(--mask, rgba(80, 50, 20, 0.42)) !important;
}

.xy-checkout-overlay .xy-checkout-modal {
    box-shadow: 4px 14px 36px rgba(var(--shadow-rgb, 120, 80, 30), 0.28) !important;
}

.xy-checkout-modal {
    width: min(420px, 94vw);
    max-height: min(92vh, 720px);
    overflow: auto;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-main);
    box-shadow: 4px 12px 32px rgba(var(--shadow-rgb, 120, 80, 30), 0.22);
}

.xy-checkout-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.85rem 1rem 0.7rem;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}

.xy-checkout-head h3 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--title-color, var(--text-main));
}

.xy-checkout-tabs {
    display: flex;
    gap: 0.4rem;
    padding: 0.7rem 1rem 0;
}

.xy-checkout-tab {
    flex: 1;
    min-height: 44px;
    border-radius: 999px;
    border: 1px solid var(--btn-ghost-border);
    background: var(--btn-ghost-bg);
    color: var(--btn-ghost-text);
    font-size: 0.9rem;
    font-weight: 650;
    cursor: pointer;
}

.xy-checkout-tab[aria-selected='true'] {
    background: var(--btn-solid-bg);
    border-color: var(--btn-solid-border);
    color: var(--btn-solid-text);
}

.xy-checkout-tab:focus-visible,
.xy-checkout-btn:focus-visible,
.xy-checkout-head .result-close-btn:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.xy-checkout-body {
    padding: 0.85rem 1.05rem 0.45rem;
    text-align: center;
}

.xy-checkout-plan {
    margin: 0 0 0.2rem;
    font-size: 0.92rem;
    font-weight: 650;
    color: var(--text-main);
}

.xy-checkout-amount {
    margin: 0 0 0.7rem;
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--accent-strong);
    letter-spacing: 0.02em;
}

.xy-checkout-status {
    margin: 0 0 0.65rem;
    font-size: 0.84rem;
    line-height: 1.55;
    color: var(--text-minor);
}

.xy-checkout-warn {
    margin: 0 0 0.75rem;
    padding: 0.7rem 0.75rem;
    border-radius: 12px;
    border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border));
    background: color-mix(in srgb, var(--danger) 10%, var(--bg-card));
    color: var(--accent-strong);
    font-size: 0.86rem;
    font-weight: 700;
    line-height: 1.55;
}

.xy-checkout-copy-btn {
    display: block;
    width: 100%;
    margin: 0 0 0.75rem;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    border: 1px solid #07c160;
    background: #07c160;
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.4;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(7, 193, 96, 0.35);
}

.xy-checkout-copy-btn:active {
    transform: scale(0.98);
}

.xy-checkout-copy-btn[hidden] {
    display: none !important;
}

.xy-checkout-qr-wrap {
    margin: 0 auto 0.75rem;
    padding: 0.7rem;
    width: min(420px, 92vw);
    border-radius: 14px;
    background: #fff;
    border: 1px solid color-mix(in srgb, var(--border) 80%, #fff);
}

.xy-checkout-qr {
    display: block;
    width: 100%;
    min-height: 300px;
}

.xy-checkout-qr svg,
.xy-checkout-qr img {
    display: block;
    width: 100%;
    height: auto;
}

.xy-checkout-countdown {
    margin: 0 0 0.45rem;
    font-size: 0.8rem;
    color: var(--text-minor);
}

.xy-checkout-error {
    margin: 0 0 0.45rem;
    font-size: 0.84rem;
    line-height: 1.5;
    color: var(--danger);
}

.xy-checkout-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.35rem 1.05rem 1rem;
}

.xy-checkout-btn {
    width: 100%;
    min-height: 44px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
}

.xy-checkout-btn:disabled {
    opacity: 0.6;
    cursor: wait;
}

.xy-checkout-btn--primary {
    border: 1px solid var(--btn-solid-border);
    background: var(--btn-solid-bg);
    color: var(--btn-solid-text);
}

.xy-checkout-btn--ghost {
    border: 1px solid var(--btn-ghost-border);
    background: transparent;
    color: var(--btn-ghost-text);
}

.xy-checkout-btn--copy {
    border: 1px solid color-mix(in srgb, var(--accent-strong) 45%, var(--border));
    background: color-mix(in srgb, var(--accent-strong) 12%, var(--bg-card));
    color: var(--accent-strong);
}

.xy-checkout-btn--copy[hidden] {
    display: none !important;
}

.xy-checkout-qr-wrap[hidden],
.xy-checkout-warn[hidden],
.xy-checkout-countdown[hidden],
.xy-checkout-error[hidden] {
    display: none !important;
}

@media (prefers-reduced-motion: reduce) {
    .xy-checkout-overlay,
    .xy-checkout-modal {
        transition: none;
    }
}