.site-qc {
    position: fixed;
    right: clamp(0.85rem, 3vw, 1.35rem);
    bottom: clamp(0.85rem, 3vw, 1.35rem);
    z-index: 99960;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

.site-qc__panel {
    position: absolute;
    right: 0;
    bottom: calc(100% + 0.75rem);
    width: min(calc(100vw - 1.7rem), 22rem);
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.28);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.5rem) scale(0.98);
    transform-origin: bottom right;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.site-qc__panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.site-qc__panel[hidden] {
    display: block !important;
}

.site-qc__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 1rem 0.85rem;
    color: #fff;
}

.site-qc__head-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.site-qc__head-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.35;
}

.site-qc__head-sub {
    margin: 0;
    font-size: 0.8125rem;
    line-height: 1.45;
    opacity: 0.95;
}

.site-qc__close {
    flex-shrink: 0;
    width: 1.75rem;
    height: 1.75rem;
    border: none;
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
}

.site-qc__close:hover {
    background: rgba(255, 255, 255, 0.28);
}

.site-qc__list {
    list-style: none;
    margin: 0;
    padding: 0;
    background: #fff;
}

.site-qc__item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1rem;
    text-decoration: none;
    color: inherit;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    transition: background 0.15s ease;
}

.site-qc__item:hover {
    background: rgba(0, 0, 0, 0.03);
    text-decoration: none;
    color: inherit;
}

.site-qc__icon-wrap {
    position: relative;
    flex-shrink: 0;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.15rem;
}

.site-qc__icon-wrap::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    width: 0.65rem;
    height: 0.65rem;
    border-radius: 50%;
    background: #4caf50;
    border: 2px solid #fff;
}

.site-qc__text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.site-qc__text strong {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #1a1a1a;
}

.site-qc__text span {
    font-size: 0.8125rem;
    color: #666;
    line-height: 1.4;
}

.site-qc__fab-area {
    position: relative;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

.site-qc__hint {
    max-width: min(calc(100vw - 7rem), 15rem);
    padding: 0.55rem 0.85rem;
    background: #fff;
    color: #1a1a1a;
    border-radius: 12px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.4;
    text-align: right;
    cursor: pointer;
    animation: site-qc-hint-in 0.45s ease-out both;
    position: relative;
}

.site-qc__hint::after {
    content: "";
    position: absolute;
    right: -5px;
    top: 50%;
    width: 10px;
    height: 10px;
    margin-top: -5px;
    background: #fff;
    transform: rotate(45deg);
    box-shadow: 2px -2px 4px rgba(0, 0, 0, 0.04);
}

.site-qc__fab-wrap {
    position: relative;
    width: 3.5rem;
    height: 3.5rem;
    flex-shrink: 0;
}

.site-qc__pulse {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: none;
    background: var(--site-qc-fab-color, #c5d429);
    opacity: 0;
    pointer-events: none;
    animation: site-qc-pulse 3.2s ease-out infinite;
}

.site-qc__pulse--d2 {
    animation-delay: 1.05s;
}

.site-qc__pulse--d3 {
    animation-delay: 2.1s;
}

@keyframes site-qc-pulse {
    0% {
        transform: scale(1);
        opacity: 0.22;
    }
    100% {
        transform: scale(1.75);
        opacity: 0;
    }
}

@keyframes site-qc-hint-in {
    from {
        opacity: 0;
        transform: translateY(0.35rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.site-qc.is-open .site-qc__hint {
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.35rem);
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.site-qc.is-open .site-qc__pulse {
    animation-play-state: paused;
    opacity: 0;
}

.site-qc__fab {
    position: relative;
    z-index: 2;
    width: 3.5rem;
    height: 3.5rem;
    border: none;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    padding: 0;
}

.site-qc__fab:hover {
    transform: scale(1.04);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.32);
}

.site-qc__fab:focus-visible,
.site-qc__close:focus-visible,
.site-qc__item:focus-visible {
    outline: 2px solid var(--accent, #4ebeef);
    outline-offset: 2px;
}

.site-qc__fab i {
    font-size: 1.35rem;
}

.site-qc.is-open .site-qc__fab {
    transform: rotate(0deg);
}

body.site-qc-active .site-scroll-top {
    bottom: calc(clamp(0.85rem, 3vw, 1.35rem) + 3.5rem + 0.65rem);
}

body.site-qc-active.site-qc-has-hint .site-scroll-top {
    bottom: calc(clamp(0.85rem, 3vw, 1.35rem) + 3.5rem + 0.65rem);
}

body.beksan-cc-locked .site-qc {
    display: none !important;
}

@media (max-width: 640px) {
    .site-qc__fab-area {
        flex-direction: column;
        align-items: flex-end;
        gap: 0.55rem;
    }

    .site-qc__hint {
        max-width: min(calc(100vw - 2.4rem), 14rem);
        text-align: center;
    }

    .site-qc__hint::after {
        right: 1.1rem;
        top: auto;
        bottom: -5px;
        margin-top: 0;
    }

    .site-qc__fab-wrap {
        width: 3.15rem;
        height: 3.15rem;
    }

    .site-qc__fab {
        width: 3.15rem;
        height: 3.15rem;
    }

    .site-qc__panel {
        width: min(calc(100vw - 1.2rem), 20rem);
    }

    body.site-qc-active.site-qc-has-hint .site-scroll-top {
        bottom: calc(clamp(0.85rem, 3vw, 1.35rem) + 3.15rem + 3rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-qc__panel,
    .site-qc__fab,
    .site-qc__hint {
        transition: none;
        animation: none;
    }

    .site-qc__pulse {
        display: none;
    }
}