/* 浮動聯絡：右下角金色按鈕 + 聯絡選單（對齊 allure.salon/sound/） */
.contact-fab {
    --contact-fab-size: 84px;
    --contact-fab-gold: #D4A056;
    --contact-fab-gold-dark: #B8893A;
    --contact-fab-gold-soft: #E8C98A;
    position: fixed;
    right: max(16px, env(safe-area-inset-right, 0px));
    bottom: max(16px, env(safe-area-inset-bottom, 0px));
    z-index: 10050;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 14px;
    width: min(66.666vw, 360px);
    max-width: calc(100vw - 32px);
    margin: 0;
    padding: 0;
    pointer-events: none;
}

.contact-fab__backdrop {
    position: fixed;
    inset: 0;
    z-index: 10049;
    margin: 0;
    padding: 0;
    border: 0;
    background: rgba(26, 26, 26, 0.38);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s;
}

.contact-fab.is-open .contact-fab__backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.contact-fab__backdrop[hidden] {
    display: block;
}

.contact-fab--direct {
    width: auto;
    max-width: none;
    gap: 0;
}

.contact-fab__trigger,
.contact-fab__panel {
    pointer-events: auto;
    position: relative;
    z-index: 10051;
}

.contact-fab__trigger {
    flex-shrink: 0;
    min-width: var(--contact-fab-size);
    height: var(--contact-fab-size);
    margin: 0;
    padding: 0 18px;
    border: 0;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(160deg, var(--contact-fab-gold-soft) 0%, var(--contact-fab-gold) 45%, var(--contact-fab-gold-dark) 100%);
    box-shadow: 0 8px 24px rgba(100, 72, 16, 0.32);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    font-family: inherit;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.06em;
    -webkit-tap-highlight-color: transparent;
    text-decoration: none;
}

.contact-fab__trigger:hover,
.contact-fab__trigger:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(100, 72, 16, 0.38);
    outline: none;
}

.contact-fab.is-open .contact-fab__trigger {
    transform: none;
    box-shadow: 0 8px 24px rgba(100, 72, 16, 0.32);
}

.contact-fab__trigger-label {
    line-height: 1;
    white-space: nowrap;
}

.contact-fab__panel {
    width: 100%;
    max-height: min(66.666vh, 520px);
    border-radius: 4px;
    background: #FDFCF8;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
    border: 1px solid var(--contact-fab-gold);
    opacity: 0;
    transform: translateY(12px);
    transform-origin: bottom right;
    transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s;
    pointer-events: none;
    visibility: hidden;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.contact-fab__panel::before {
    content: '';
    display: block;
    height: 3px;
    background: linear-gradient(90deg, var(--contact-fab-gold-dark), var(--contact-fab-gold), var(--contact-fab-gold-dark));
}

.contact-fab__panel[hidden] {
    display: block;
}

.contact-fab.is-open .contact-fab__panel {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    visibility: visible;
}

.contact-fab.is-open .contact-fab__panel[hidden] {
    visibility: visible;
}

.contact-fab__panel-inner {
    padding: 18px 0 6px;
}

.contact-fab__title {
    margin: 0;
    padding: 0 20px 14px;
    font-size: clamp(17px, 4vw, 19px);
    line-height: 1.55;
    letter-spacing: 0.02em;
    color: #5C3D2E;
    font-weight: 700;
    border-bottom: 1px solid rgba(212, 160, 86, 0.35);
}

.contact-fab__menu {
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
}

.contact-fab__row {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    min-height: 56px;
    padding: 14px 20px;
    box-sizing: border-box;
    border: 0;
    border-bottom: 1px solid rgba(197, 160, 89, 0.2);
    background: transparent;
    color: #5C3D2E;
    text-decoration: none;
    font-size: clamp(17px, 4.2vw, 18px);
    font-weight: 500;
    letter-spacing: 0.02em;
    line-height: 1.35;
    transition: background 0.2s ease, color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.contact-fab__row:last-child {
    border-bottom: 0;
}

.contact-fab__row:hover,
.contact-fab__row:focus-visible {
    background: rgba(212, 160, 86, 0.12);
    color: var(--contact-fab-gold-dark);
    outline: none;
}

.contact-fab__row-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    color: var(--contact-fab-gold-dark);
    flex-shrink: 0;
}

.contact-fab__row-icon svg {
    display: block;
    width: 22px;
    height: 22px;
}

.contact-fab__row-label {
    flex: 1;
    min-width: 0;
    overflow-wrap: anywhere;
}

body.ahk-fab-open {
    overflow: hidden;
}

@media (max-width: 768px) {
    .contact-fab {
        right: max(12px, env(safe-area-inset-right, 0px));
        bottom: max(12px, env(safe-area-inset-bottom, 0px));
        width: min(66.666vw, 320px);
        --contact-fab-size: 76px;
    }

    .contact-fab__trigger {
        font-size: 18px;
        padding: 0 16px;
    }

    .contact-fab__panel {
        max-height: min(66.666vh, 480px);
    }

    .contact-fab__title {
        padding: 0 18px 12px;
    }

    .contact-fab__row {
        min-height: 54px;
        padding: 14px 18px;
    }

    .contact-fab__row-icon svg {
        width: 24px;
        height: 24px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .contact-fab__backdrop,
    .contact-fab__panel,
    .contact-fab__trigger {
        transition: none;
    }
}