/* 右侧悬浮在线客服（电话 + 微信二维码） */
.floating-contact {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 9998;
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.floating-contact-inner {
    position: relative;
    display: flex;
    align-items: stretch;
    flex-direction: row-reverse;
    filter: drop-shadow(-6px 6px 20px rgba(15, 23, 42, 0.14));
}

@keyframes floating-contact-fab-bg {
    0%,
    100% {
        background-position: 0% 42%;
    }

    50% {
        background-position: 100% 58%;
    }
}

@keyframes floating-contact-fab-ring {

    0%,
    100% {
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35),
            0 0 0 0 rgba(253, 224, 71, 0.25);
    }

    45% {
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35),
            -8px 0 26px rgba(34, 197, 94, 0.42),
            0 0 22px rgba(253, 224, 71, 0.38);
    }
}

.floating-contact-fab {
    pointer-events: auto;
    border: none;
    cursor: pointer;
    padding: 16px 9px;
    min-height: 156px;
    width: 50px;
    border-radius: 12px 0 0 12px;
    background: linear-gradient(165deg, #16a34a 0%, #22c55e 38%, #15803d 62%, #14532d 100%);
    background-size: 240% 240%;
    color: #ffffff;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.08em;
    writing-mode: vertical-rl;
    text-orientation: upright;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
    text-rendering: geometricPrecision;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 2px 4px rgba(0, 0, 0, 0.35), 0 0 1px rgba(0, 0, 0, 0.8);
    transition: filter 0.25s ease;
    animation: floating-contact-fab-bg 5.5s ease-in-out infinite,
        floating-contact-fab-ring 2.6s ease-in-out infinite;
}

.floating-contact-fab:hover {
    filter: brightness(1.08);
}

.floating-contact-fab:focus-visible {
    outline: 2px solid #bbf7d0;
    outline-offset: 2px;
}

.floating-contact.is-open .floating-contact-fab {
    transform: translateX(1px);
    animation: none;
    background: linear-gradient(165deg, #15803d 0%, #16a34a 45%, #166534 100%);
    background-size: auto;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 2px 4px rgba(0, 0, 0, 0.35), 0 0 1px rgba(0, 0, 0, 0.8);
}

.floating-contact-panel {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translate(12px, -50%);
    width: 228px;
    max-height: min(420px, 78vh);
    overflow-y: auto;
    padding: 16px;
    background: #fff;
    border-radius: 12px 0 0 12px;
    border: 1px solid #e5e7eb;
    border-right: none;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
}

.floating-contact.is-open .floating-contact-panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(0, -50%);
}

.floating-contact-title {
    font-size: 15px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid #f3f4f6;
}

.floating-contact-phone {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin-bottom: 12px;
    border-radius: 10px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
    border: 1px solid #dbeafe;
    text-decoration: none;
    color: #1e3a8a;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.floating-contact-phone:hover {
    background: linear-gradient(135deg, #dbeafe 0%, #dcfce7 100%);
    border-color: #bfdbfe;
}

.floating-contact-phone-icon {
    font-size: 22px;
    line-height: 1;
    flex-shrink: 0;
}

.floating-contact-phone-label {
    font-size: 12px;
    color: #64748b;
    display: block;
    margin-bottom: 2px;
}

.floating-contact-phone-num {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #0f172a;
}

.floating-contact-wechat-label {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    margin: 0 0 8px;
    text-align: center;
}

.floating-contact-qr-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 10px;
    border-radius: 10px;
    background: #f9fafb;
    border: 1px dashed #d1d5db;
}

.floating-contact-qr {
    display: block;
    width: 128px;
    height: 128px;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
}

.floating-contact-qr.is-hidden {
    display: none;
}

.floating-contact-qr-fallback {
    margin: 0;
    font-size: 14px;
    color: #374151;
    text-align: center;
    line-height: 1.5;
}

.floating-contact-wechat-id {
    margin: 8px 0 0;
    font-size: 13px;
    color: #6b7280;
    text-align: center;
}

.floating-contact-wechat-id strong {
    color: #15803d;
    font-weight: 700;
}

@media (max-width: 480px) {
    .floating-contact {
        top: auto;
        bottom: max(24px, env(safe-area-inset-bottom, 0px));
        transform: none;
    }

    .floating-contact-inner {
        align-items: flex-end;
    }

    .floating-contact-panel {
        top: auto;
        bottom: 0;
        transform: translate(12px, 0);
        width: min(260px, calc(100vw - 52px));
        max-height: 70vh;
    }

    .floating-contact.is-open .floating-contact-panel {
        transform: translate(0, 0);
    }
}

@media (prefers-reduced-motion: reduce) {

    .floating-contact-fab {
        animation: none;
        background: linear-gradient(165deg, #15803d 0%, #16a34a 45%, #166534 100%);
        background-size: auto;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 2px 4px rgba(0, 0, 0, 0.35), 0 0 1px rgba(0, 0, 0, 0.8);
    }

    .floating-contact.is-open .floating-contact-fab {
        animation: none;
    }
}