/* 高级功能样式 - 极简高端风格 */

/* ========== 功能区域容器 ========== */

#xiaohongFeatures,
#douyinFeatures,
#aiAgentFeatures {
    position: relative;
    padding: 8px 0;
}

/* ========== 功能卡片 ========== */

#xiaohongFeatures .feature-item,
#douyinFeatures .feature-item {
    position: relative;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: 18px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    z-index: 1;
}

/* AI 智能体页：仅保留图标 + 文案，无卡片底/边线/投影 */
#aiAgentFeatures .feature-item {
    position: relative;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    overflow: visible;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1;
}

#xiaohongFeatures .feature-item::before,
#douyinFeatures .feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20%;
    right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
}

#aiAgentFeatures .feature-item::before {
    display: none;
}

/* ========== 卡片交互 ========== */

#xiaohongFeatures .feature-item:hover,
#douyinFeatures .feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

#aiAgentFeatures .feature-item:hover {
    transform: none;
    box-shadow: none;
}

#xiaohongFeatures .feature-item:active,
#douyinFeatures .feature-item:active {
    transform: translateY(0) scale(0.98);
    transition: all 0.1s ease;
}

#aiAgentFeatures .feature-item:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* ========== 图标容器 ========== */

#xiaohongFeatures .feature-icon,
#douyinFeatures .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

#aiAgentFeatures .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s ease;
    box-shadow: none;
    background: transparent;
}

#xiaohongFeatures .feature-icon::after,
#douyinFeatures .feature-icon::after,
#aiAgentFeatures .feature-icon::after {
    display: none;
}

#xiaohongFeatures .feature-item:hover .feature-icon,
#douyinFeatures .feature-item:hover .feature-icon,
#aiAgentFeatures .feature-item:hover .feature-icon {
    transform: scale(1.05);
}

/* ========== 文字样式 ========== */

#xiaohongFeatures .feature-text,
#douyinFeatures .feature-text,
#aiAgentFeatures .feature-text {
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: #111827;
    transition: color 0.2s ease;
    position: relative;
}

/* MAX 徽章 - 金色渐变 */
#xiaohongFeatures .feature-text .max-badge,
#douyinFeatures .feature-text .max-badge,
#aiAgentFeatures .feature-text .max-badge {
    -webkit-text-fill-color: #fff !important;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
    -webkit-background-clip: padding-box !important;
    background-clip: padding-box !important;
    color: #fff !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 9px !important;
    font-weight: 800 !important;
    padding: 1px 6px !important;
    border-radius: 4px !important;
    margin-left: 4px !important;
    vertical-align: baseline !important;
    letter-spacing: 0.5px !important;
    line-height: 1.2 !important;
    box-shadow: 0 1px 3px rgba(245, 158, 11, 0.3) !important;
    transform: translateY(-1px) !important;
    animation: none !important;
}

@keyframes maxBadgePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.85; }
}

/* ========== VIP / 高级标记 ========== */

.vip-badge,
.premium-badge,
.pro-badge {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
    color: #fff !important;
    font-size: 10px !important;
    font-weight: 700 !important;
    padding: 2px 8px !important;
    border-radius: 6px !important;
    letter-spacing: 0.5px !important;
    box-shadow: 0 1px 3px rgba(245, 158, 11, 0.25) !important;
}

/* ========== 锁定状态 ========== */

.feature-item.locked,
.feature-item[data-locked="true"],
.feature-item.premium-locked {
    position: relative;
    opacity: 0.6;
    filter: grayscale(0.3);
    pointer-events: auto;
}

.feature-item.locked::after,
.feature-item[data-locked="true"]::after,
.feature-item.premium-locked::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(248, 250, 252, 0.5);
    border-radius: 18px;
    z-index: 2;
    pointer-events: none;
}

.lock-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(107, 114, 128, 0.15);
    border-radius: 6px;
    z-index: 3;
    color: #6b7280;
    font-size: 10px;
}

/* ========== 光晕 ========== */

#xiaohongFeatures .feature-glow,
#douyinFeatures .feature-glow,
#aiAgentFeatures .feature-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
    z-index: 0;
}

/* ========== 响应式 ========== */

@media (max-width: 480px) {
    #xiaohongFeatures .feature-item,
    #douyinFeatures .feature-item {
        border-radius: 14px;
    }

    #xiaohongFeatures .feature-icon,
    #douyinFeatures .feature-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
    }

    #aiAgentFeatures .feature-icon {
        width: 48px;
        height: 48px;
        border-radius: 14px;
    }

    #xiaohongFeatures .feature-text,
    #douyinFeatures .feature-text,
    #aiAgentFeatures .feature-text {
        font-size: 0.85rem;
    }
}

@media (max-width: 375px) {
    #xiaohongFeatures .feature-item,
    #douyinFeatures .feature-item {
        min-height: 90px;
    }

    #aiAgentFeatures .feature-item {
        min-height: 0;
    }

    #xiaohongFeatures .feature-icon,
    #douyinFeatures .feature-icon {
        width: 44px;
        height: 44px;
        border-radius: 11px;
    }

    #aiAgentFeatures .feature-icon {
        width: 44px;
        height: 44px;
        border-radius: 14px;
    }

    #xiaohongFeatures .feature-text,
    #douyinFeatures .feature-text,
    #aiAgentFeatures .feature-text {
        font-size: 0.82rem;
    }
}

/* ========== 深色模式 ========== */

@media (prefers-color-scheme: dark) {
    #xiaohongFeatures .feature-item,
    #douyinFeatures .feature-item {
        background: #1f2937;
        border-color: rgba(255, 255, 255, 0.06);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    #aiAgentFeatures .feature-item {
        background: transparent;
        border: none;
        box-shadow: none;
    }

    #xiaohongFeatures .feature-text,
    #douyinFeatures .feature-text,
    #aiAgentFeatures .feature-text {
        color: #e5e7eb;
    }
}

/* ========== 触摸反馈 ========== */

@media (hover: none) and (pointer: coarse) {
    #xiaohongFeatures .feature-item:active,
    #douyinFeatures .feature-item:active {
        transform: scale(0.97);
        transition: transform 0.1s ease;
    }

    #aiAgentFeatures .feature-item:active {
        transform: scale(0.96);
        transition: transform 0.1s ease;
    }
}

/* ========== 性能优化 ========== */

#xiaohongFeatures .feature-item,
#douyinFeatures .feature-item,
#aiAgentFeatures .feature-item {
    transform: translateZ(0);
}