/* 首页常见问题与联系客服入口：当前样式真值统一收口在本文件 */
.feedback-widget {
    position: fixed;
    bottom: 22px;
    left: max(12px, env(safe-area-inset-left) + 12px);
    right: auto;
    z-index: 9999;
    font-family: var(--font-body, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    isolation: isolate;
    transition: left var(--motion-base, 200ms) var(--motion-ease, ease), transform var(--motion-base, 200ms) var(--motion-ease, ease), opacity var(--motion-base, 200ms) var(--motion-ease, ease);
}

.feedback-trigger {
    position: relative;
    min-width: 118px;
    max-width: min(118px, calc(100vw - 76px));
    padding: 9px 12px 9px 16px;
    border-radius: 14px;
    border: 1px solid rgba(87, 81, 213, 0.14);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(246, 244, 255, 0.98) 100%);
    color: var(--color-text-primary, #161615);
    box-shadow: 0 10px 22px rgba(87, 81, 213, 0.12);
    display: inline-flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
    -webkit-user-select: none;
    user-select: none;
    transition: transform var(--motion-base, 200ms) var(--motion-ease, ease), box-shadow var(--motion-base, 200ms) var(--motion-ease, ease), border-color var(--motion-base, 200ms) var(--motion-ease, ease), background var(--motion-base, 200ms) var(--motion-ease, ease);
}

.feedback-trigger::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 8px;
    width: 3px;
    height: 24px;
    border-radius: 999px;
    transform: translateY(-50%);
    background: linear-gradient(180deg, var(--color-brand-500, #6c66e5) 0%, var(--color-brand-700, #4b46c9) 100%);
    box-shadow: 0 0 0 1px rgba(87, 81, 213, 0.08);
}

.feedback-trigger:hover {
    transform: translateY(-1px);
    border-color: rgba(87, 81, 213, 0.24);
    box-shadow: 0 14px 26px rgba(87, 81, 213, 0.16);
    background: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(242, 240, 255, 1) 100%);
    color: var(--color-text-primary, #161615);
}

.feedback-trigger:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring, 0 0 0 3px rgba(87, 81, 213, 0.35)), 0 14px 26px rgba(87, 81, 213, 0.16);
}

.feedback-trigger:active {
    transform: translateY(0);
}

.feedback-trigger__icon {
    display: none;
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: linear-gradient(145deg, var(--color-brand-600, #5751d5) 0%, var(--color-brand-700, #4b46c9) 100%);
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 10px 18px rgba(87, 81, 213, 0.22);
}

.feedback-trigger__icon i {
    font-size: 16px;
    color: var(--color-text-inverse, #fdfdfd);
}

.feedback-trigger__copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1px;
    min-width: 0;
}

.feedback-trigger__line {
    display: block;
    white-space: nowrap;
}

.feedback-trigger__line--primary {
    font-size: 11px;
    line-height: 1.25;
    font-weight: 600;
    color: var(--color-text-secondary, #3f4148);
}

.feedback-trigger__line--secondary {
    font-size: 13px;
    line-height: 1.2;
    font-weight: 700;
    color: var(--color-brand-700, #4b46c9);
}

.feedback-toggle {
    width: 30px;
    height: 30px;
    border-radius: 12px;
    border: 1px solid rgba(87, 81, 213, 0.16);
    background: rgba(255, 255, 255, 0.96);
    color: var(--color-brand-700, #4b46c9);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.1);
    transition: transform var(--motion-fast, 120ms) var(--motion-ease, ease), box-shadow var(--motion-fast, 120ms) var(--motion-ease, ease), border-color var(--motion-fast, 120ms) var(--motion-ease, ease), color var(--motion-fast, 120ms) var(--motion-ease, ease);
}

.feedback-toggle i {
    font-size: 14px;
}

.feedback-toggle:hover {
    transform: translateY(-1px);
    color: #3f38b4;
    border-color: rgba(87, 81, 213, 0.28);
    box-shadow: 0 12px 22px rgba(15, 23, 42, 0.14);
}

.feedback-toggle:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring, 0 0 0 3px rgba(87, 81, 213, 0.35)), 0 14px 28px rgba(15, 23, 42, 0.16);
}

.feedback-widget.is-collapsed {
    gap: 8px;
}

.feedback-widget.is-collapsed .feedback-trigger {
    width: 38px;
    min-width: 38px;
    max-width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 12px;
    justify-content: center;
    background: linear-gradient(145deg, var(--color-brand-600, #5751d5) 0%, var(--color-brand-700, #4b46c9) 100%);
    border-color: rgba(87, 81, 213, 0.28);
    box-shadow: 0 10px 20px rgba(87, 81, 213, 0.18);
}

.feedback-widget.is-collapsed .feedback-trigger__icon {
    display: inline-flex;
}

.feedback-widget.is-collapsed .feedback-trigger__copy {
    display: none;
}

.feedback-widget.is-collapsed .feedback-trigger::before {
    display: none;
}

.feedback-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    border: 1px solid #e1e8f0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    max-height: 500px;
    overflow: hidden;
}

.feedback-panel.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.feedback-header {
    background: linear-gradient(135deg, #f8faff 0%, #ffffff 100%);
    padding: 20px;
    border-bottom: 1px solid #e1e8f0;
    border-radius: 16px 16px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.feedback-header h4 {
    margin: 0;
    color: #1f2937;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feedback-header h4 i {
    color: #ef4444;
    font-size: 14px;
}

.close-btn {
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
}

.close-btn:hover {
    background: #f3f4f6;
    color: #6b7280;
}

.feedback-content {
    padding: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.feedback-description {
    color: #6b7280;
    font-size: 14px;
    line-height: 1.5;
    margin: 0 0 20px 0;
}

.feedback-option {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    padding: 16px;
    background: #f9fafb;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
}

.option-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.option-content {
    flex: 1;
}

.option-content h5 {
    margin: 0 0 4px 0;
    color: #1f2937;
    font-size: 14px;
    font-weight: 600;
}

.option-content p {
    margin: 0 0 12px 0;
    color: #6b7280;
    font-size: 13px;
    line-height: 1.4;
}

.feedback-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s;
}

.feedback-link:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    color: white;
}

.qr-code-container {
    text-align: center;
    padding: 16px;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #f3f4f6;
    margin-top: 8px;
}

.feedback-qr-code {
    width: 180px;
    height: 180px;
    border-radius: 12px;
    border: 2px solid #e5e7eb;
    margin-bottom: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.qr-hint {
    margin: 0;
    color: #6b7280;
    font-size: 13px;
    font-weight: 500;
}

.feedback-footer {
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid #e5e7eb;
    margin-top: 20px;
}

.thank-you-text {
    margin: 0;
    color: #6b7280;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.thank-you-text i {
    color: #fbbf24;
    font-size: 14px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .feedback-widget {
        bottom: calc(86px + env(safe-area-inset-bottom));
        left: max(12px, env(safe-area-inset-left) + 12px);
        right: auto;
        gap: 0;
    }

    .feedback-trigger,
    .feedback-widget.is-collapsed .feedback-trigger {
        width: auto;
        min-width: min(116px, calc(100vw - 76px));
        max-width: min(116px, calc(100vw - 76px));
        height: auto;
        padding: 9px 11px 9px 16px;
        border-radius: 13px;
        justify-content: flex-start;
        gap: 0;
        box-shadow: 0 12px 24px rgba(87, 81, 213, 0.16);
    }

    .feedback-trigger__icon,
    .feedback-widget.is-collapsed .feedback-trigger__icon {
        width: 30px;
        height: 30px;
        border-radius: 10px;
        border: none;
        background: linear-gradient(145deg, var(--color-brand-600, #5751d5) 0%, var(--color-brand-700, #4b46c9) 100%);
        box-shadow: 0 8px 14px rgba(87, 81, 213, 0.18);
    }

    .feedback-trigger__icon i {
        font-size: 14px;
    }

    .feedback-trigger__copy,
    .feedback-widget.is-collapsed .feedback-trigger__copy {
        display: flex;
    }

    .feedback-trigger::before {
        left: 7px;
        width: 3px;
        height: 22px;
    }

    .feedback-trigger__line--primary {
        font-size: 10px;
        line-height: 1.2;
    }

    .feedback-trigger__line--secondary {
        font-size: 12px;
        line-height: 1.18;
    }

    .feedback-panel {
        width: min(320px, calc(100vw - 28px));
        left: 0;
        right: auto;
        bottom: 54px;
    }

    .feedback-header {
        padding: 16px;
    }

    .feedback-content {
        padding: 16px;
    }

    .feedback-option {
        padding: 12px;
    }

    .feedback-qr-code {
        width: 150px;
        height: 150px;
    }

    .feedback-toggle {
        display: none;
    }
}

@media (max-width: 480px) {
    .feedback-widget {
        left: max(8px, env(safe-area-inset-left) + 8px);
        right: auto;
    }

    .feedback-trigger,
    .feedback-widget.is-collapsed .feedback-trigger {
        min-width: min(112px, calc(100vw - 72px));
        max-width: min(112px, calc(100vw - 72px));
        padding: 8px 10px 8px 15px;
        border-radius: 12px;
        gap: 0;
    }

    .feedback-trigger__icon,
    .feedback-widget.is-collapsed .feedback-trigger__icon {
        width: 28px;
        height: 28px;
        border-radius: 9px;
    }

    .feedback-trigger::before {
        left: 7px;
        height: 22px;
    }

    .feedback-trigger__line--primary {
        font-size: 9px;
    }

    .feedback-trigger__line--secondary {
        font-size: 12px;
        line-height: 1.16;
    }

    .feedback-panel {
        width: calc(100vw - 20px);
        left: 0;
        right: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .feedback-widget,
    .feedback-trigger,
    .feedback-toggle {
        transition: none;
    }

    .feedback-trigger:hover {
        transform: none;
    }
}