/* QQ群快捷入口 */
.qq-group-widget {
    position: fixed;
    right: 24px;
    bottom: 200px;
    z-index: 5001;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.qq-group-trigger {
    min-width: 124px;
    height: 52px;
    padding: 0 20px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, #65a5ff 0%, #4e8ce8 100%);
    color: #071326;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(45, 112, 214, 0.34);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.qq-group-trigger:hover {
    transform: translateY(-3px);
    background: linear-gradient(135deg, #75afff 0%, #5796f0 100%);
    box-shadow: 0 14px 34px rgba(45, 112, 214, 0.42);
}

.qq-group-trigger:focus-visible,
.qq-group-join:focus-visible,
.qq-group-copy:focus-visible,
.qq-group-close:focus-visible {
    outline: 3px solid rgba(80, 149, 244, 0.38);
    outline-offset: 3px;
}

.qq-group-trigger-icon {
    width: 23px;
    height: 23px;
    flex: 0 0 auto;
}

.qq-group-trigger-icon path {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.qq-group-panel {
    position: absolute;
    right: 0;
    bottom: 64px;
    width: min(360px, calc(100vw - 24px));
    padding: 16px;
    border: 1px solid rgba(99, 115, 142, 0.25);
    border-radius: 16px;
    background: rgba(13, 17, 24, 0.97);
    color: #f7f9fc;
    box-shadow: 0 22px 55px rgba(4, 10, 22, 0.36);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px) scale(0.98);
    transform-origin: bottom right;
    transition: opacity 0.22s ease, visibility 0.22s ease, transform 0.22s ease;
}

.qq-group-widget.is-open .qq-group-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.qq-group-panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}

.qq-group-panel-title {
    color: #fff;
    font-size: 18px;
    line-height: 1.3;
    margin: 0 0 5px;
}

.qq-group-panel-tip {
    color: #9eabc0;
    font-size: 12px;
    line-height: 1.5;
    margin: 0;
}

.qq-group-close {
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.07);
    color: #b9c3d3;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}

.qq-group-close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.13);
}

.qq-group-list {
    display: grid;
    gap: 8px;
}

.qq-group-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
        "name join"
        "meta join";
    align-items: center;
    column-gap: 12px;
    row-gap: 4px;
    padding: 12px;
    border: 1px solid rgba(105, 127, 164, 0.22);
    border-radius: 12px;
    background: rgba(22, 29, 41, 0.94);
}

.qq-group-name {
    grid-area: name;
    color: #f4f7fb;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    margin: 0;
}

.qq-group-meta {
    grid-area: meta;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    margin: 0;
}

.qq-group-number {
    color: #a9b6ca;
    font-size: 13px;
    letter-spacing: 0.25px;
}

.qq-group-copy {
    border: 0;
    background: transparent;
    color: #6da8ff;
    font-size: 12px;
    cursor: pointer;
    padding: 3px 0;
}

.qq-group-copy:hover {
    color: #9ac3ff;
}

.qq-group-join {
    grid-area: join;
    width: auto;
    min-width: 82px;
    min-height: 38px;
    padding: 0 12px;
    border: 1px solid rgba(82, 148, 241, 0.42);
    border-radius: 10px;
    background: #142033;
    color: #69a7ff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s ease, color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.qq-group-join:hover {
    transform: translateY(-1px);
    color: #fff;
    border-color: #5899f4;
    background: #245faa;
}

.qq-group-toast {
    position: absolute;
    right: 0;
    bottom: -48px;
    max-width: min(360px, calc(100vw - 40px));
    padding: 9px 14px;
    border-radius: 9px;
    background: rgba(17, 24, 36, 0.96);
    color: #e8eef8;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

.qq-group-toast.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

@media (max-width: 576px) {
    .qq-group-widget {
        right: 12px;
        bottom: 158px;
    }

    .qq-group-trigger {
        min-width: 116px;
        height: 48px;
        padding: 0 16px;
        font-size: 17px;
    }

    .qq-group-trigger-icon {
        width: 22px;
        height: 22px;
    }

    .qq-group-panel {
        position: absolute;
        right: 0;
        bottom: 60px;
        width: min(360px, calc(100vw - 24px));
        max-height: calc(100vh - 240px);
        overflow-y: auto;
        padding: 14px;
    }

    .qq-group-toast {
        position: fixed;
        right: 20px;
        bottom: 100px;
    }
}

@media (max-width: 380px) {
    .qq-group-card {
        grid-template-columns: minmax(0, 1fr) 76px;
        column-gap: 8px;
        padding: 10px;
    }

    .qq-group-name {
        font-size: 13px;
    }

    .qq-group-number,
    .qq-group-copy,
    .qq-group-join {
        font-size: 12px;
    }

    .qq-group-meta {
        gap: 6px;
    }

    .qq-group-join {
        min-width: 76px;
        padding: 0 8px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .qq-group-trigger,
    .qq-group-panel,
    .qq-group-join,
    .qq-group-toast {
        transition: none;
    }
}