/**
 * 前端样式 - 企业级现代化UI设计
 * 小制博客 blog.zuuui.com
 * 作者QQ: 40473606
 */

/* ==================== CSS 变量定义 ==================== */
html {
    /* 默认主题色（紫色，会被JavaScript动态替换） */
    --xiaozhi-ai-primary: #667eea;
    --xiaozhi-ai-primary-dark: #764ba2;
    --xiaozhi-ai-primary-rgb: 102, 126, 234;

    /* 日间模式颜色 */
    --xiaozhi-ai-bg-light: #ffffff;
    --xiaozhi-ai-bg-grey: #f8f9fa;
    --xiaozhi-ai-text-dark: #1a1a2e;
    --xiaozhi-ai-text-grey: #6c757d;
    --xiaozhi-ai-border: #e9ecef;
    --xiaozhi-ai-shadow: rgba(0, 0, 0, 0.08);
    --xiaozhi-ai-shadow-hover: rgba(0, 0, 0, 0.12);
}

/* 夜间模式（兼容多种方式） */
html.dark-theme,
html.theme-dark,
html[data-theme="dark"],
body.dark-theme,
body.theme-dark,
body[data-theme="dark"],
.dark-theme,
.theme-dark,
html.dark,
body.dark,
.dark {
    --xiaozhi-ai-bg-light: #292A2D !important;
    --xiaozhi-ai-bg-grey: #323335 !important;
    --xiaozhi-ai-text-dark: #e4e4e7 !important;
    --xiaozhi-ai-text-grey: #a1a1aa !important;
    --xiaozhi-ai-border: #3f4042 !important;
    --xiaozhi-ai-shadow: rgba(0, 0, 0, 0.4) !important;
    --xiaozhi-ai-shadow-hover: rgba(0, 0, 0, 0.5) !important;
}

/* ==================== 浮动触发按钮 ==================== */
.xiaozhi-ai-trigger {
    position: fixed;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    border-radius: 50%;
    box-shadow:
        0 8px 24px rgba(var(--xiaozhi-ai-primary-rgb), 0.35),
        0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.2),
        inset 0 -2px 6px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: xiaozhi-ai-pulse 3s infinite ease-in-out;
    backdrop-filter: blur(10px);
}

/* 自定义图片图标样式 */
.xiaozhi-ai-trigger.has-image i {
    display: none;
}

.xiaozhi-ai-trigger.has-image {
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    padding: 12px;
}

.xiaozhi-ai-trigger-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* 右下角（默认） */
.xiaozhi-ai-trigger.position-bottom-right {
    right: 30px;
    bottom: 30px;
}

/* 左下角 */
.xiaozhi-ai-trigger.position-bottom-left {
    left: 30px;
    bottom: 30px;
}

/* 右上角 */
.xiaozhi-ai-trigger.position-top-right {
    right: 30px;
    top: 30px;
}

/* 左上角 */
.xiaozhi-ai-trigger.position-top-left {
    left: 30px;
    top: 30px;
}

.xiaozhi-ai-trigger:hover {
    transform: scale(1.12) rotate(5deg);
    box-shadow:
        0 12px 32px rgba(var(--xiaozhi-ai-primary-rgb), 0.45),
        0 6px 16px rgba(var(--xiaozhi-ai-primary-rgb), 0.3),
        inset 0 -2px 6px rgba(0, 0, 0, 0.15);
}

.xiaozhi-ai-trigger:active {
    transform: scale(1.05);
}

.xiaozhi-ai-trigger i {
    font-size: 30px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* 脉冲动画 - 更柔和 */
@keyframes xiaozhi-ai-pulse {
    0%, 100% {
        box-shadow:
            0 8px 24px rgba(var(--xiaozhi-ai-primary-rgb), 0.35),
            0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.2),
            inset 0 -2px 6px rgba(0, 0, 0, 0.15);
    }
    50% {
        box-shadow:
            0 12px 32px rgba(var(--xiaozhi-ai-primary-rgb), 0.5),
            0 6px 16px rgba(var(--xiaozhi-ai-primary-rgb), 0.35),
            inset 0 -2px 6px rgba(0, 0, 0, 0.15);
    }
}

/* 隐藏触发按钮（窗口打开时） */
.xiaozhi-ai-trigger.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

/* ==================== 聊天窗口 ==================== */
.xiaozhi-ai-chat-window {
    position: fixed;
    width: 400px;
    height: 650px;
    background: var(--xiaozhi-ai-bg-light);
    border-radius: 24px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.2),
        0 8px 24px rgba(0, 0, 0, 0.12),
        0 0 1px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: xiaozhi-ai-slide-up 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 右下角（默认） */
.xiaozhi-ai-chat-window.position-bottom-right {
    right: 30px;
    bottom: 30px;
}

/* 左下角 */
.xiaozhi-ai-chat-window.position-bottom-left {
    left: 30px;
    bottom: 30px;
}

/* 右上角 */
.xiaozhi-ai-chat-window.position-top-right {
    right: 30px;
    top: 30px;
}

/* 左上角 */
.xiaozhi-ai-chat-window.position-top-left {
    left: 30px;
    top: 30px;
}

.xiaozhi-ai-chat-window.active {
    display: flex;
}

/* 放大状态 */
.xiaozhi-ai-chat-window.expanded {
    width: 90vw !important;
    height: 90vh !important;
    max-width: 1200px !important;
    max-height: 900px !important;
    left: 50% !important;
    top: 50% !important;
    right: auto !important;
    bottom: auto !important;
    transform: translate(-50%, -50%) !important;
    animation: xiaozhi-ai-expand-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes xiaozhi-ai-expand-in {
    from {
        width: 400px;
        height: 650px;
        transform: translate(-50%, -50%) scale(0.9);
        opacity: 0.8;
    }
    to {
        width: 90vw;
        height: 90vh;
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

@keyframes xiaozhi-ai-slide-up {
    from {
        transform: translateY(30px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

/* ==================== 窗口头部 ==================== */
.xiaozhi-ai-header {
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    color: #ffffff;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

/* 添加装饰性光效 */
.xiaozhi-ai-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.xiaozhi-ai-header-info {
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
    z-index: 1;
}

.xiaozhi-ai-avatar {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.xiaozhi-ai-avatar:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.3);
}

.xiaozhi-ai-avatar i {
    font-size: 22px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.xiaozhi-ai-title {
    display: flex;
    flex-direction: column;
}

.xiaozhi-ai-title h3 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.3px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.xiaozhi-ai-title span {
    font-size: 12px;
    opacity: 0.92;
    margin-top: 3px;
    font-weight: 400;
}

/* 头部按钮组 */
.xiaozhi-ai-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

/* 清空按钮 */
.xiaozhi-ai-clear {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.xiaozhi-ai-clear:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: scale(1.15) rotate(180deg);
}

.xiaozhi-ai-clear:active {
    transform: scale(0.95) rotate(180deg);
}

.xiaozhi-ai-clear i {
    font-size: 16px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: all 0.3s ease;
}

/* 放大按钮 */
.xiaozhi-ai-expand {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.xiaozhi-ai-expand:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: scale(1.15);
}

.xiaozhi-ai-expand:active {
    transform: scale(0.95);
}

.xiaozhi-ai-expand i {
    font-size: 16px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: all 0.3s ease;
}

/* 关闭按钮 */
.xiaozhi-ai-close {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.xiaozhi-ai-close:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: rotate(90deg) scale(1.1);
}

.xiaozhi-ai-close:active {
    transform: rotate(90deg) scale(0.95);
}

.xiaozhi-ai-close i {
    font-size: 18px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* ==================== 用户信息栏（在底部） ==================== */
.xiaozhi-ai-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.xiaozhi-ai-user-info-loading {
    font-size: 12px;
    color: var(--xiaozhi-ai-text-grey);
}

.xiaozhi-ai-user-info-loading i {
    margin-right: 5px;
    animation: xiaozhi-ai-spin 1s linear infinite;
}

@keyframes xiaozhi-ai-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.xiaozhi-ai-user-info-item {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    background: var(--xiaozhi-ai-bg-light);
    border: 1px solid var(--xiaozhi-ai-border);
    border-radius: 8px;
    font-size: 12px;
    color: var(--xiaozhi-ai-text-dark);
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px var(--xiaozhi-ai-shadow);
    white-space: nowrap;
}

.xiaozhi-ai-user-info-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--xiaozhi-ai-shadow-hover);
}

.xiaozhi-ai-user-info-item i {
    margin-right: 5px;
    font-size: 12px;
}

/* VIP等级样式 */
.xiaozhi-ai-user-info-item.normal-user {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
    color: #495057;
    border-color: #ced4da;
}

.xiaozhi-ai-user-info-item.vip-level-1 {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: #805000;
    border-color: #ffd700;
}

.xiaozhi-ai-user-info-item.vip-level-2 {
    background: linear-gradient(135deg, #c0c0c0 0%, #e8e8e8 100%);
    color: #4a4a4a;
    border-color: #c0c0c0;
}

.xiaozhi-ai-user-info-item.vip-level-3 {
    background: linear-gradient(135deg, #cd7f32 0%, #e6a05c 100%);
    color: #5c3a1e;
    border-color: #cd7f32;
}

.xiaozhi-ai-user-info-item.vip-level-4 {
    background: linear-gradient(135deg, #9b59b6 0%, #b370cf 100%);
    color: #ffffff;
    border-color: #9b59b6;
}

.xiaozhi-ai-user-info-item.vip-level-5 {
    background: linear-gradient(135deg, #e74c3c 0%, #f39c12 100%);
    color: #ffffff;
    border-color: #e74c3c;
}

/* 费用显示样式 */
.xiaozhi-ai-user-info-item.cost-free {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    color: #ffffff;
    border-color: #10b981;
}

.xiaozhi-ai-user-info-item.cost-paid {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    color: #ffffff;
    border-color: #ef4444;
}

/* ==================== 消息区域 ==================== */
.xiaozhi-ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: var(--xiaozhi-ai-bg-grey);
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* 自定义滚动条 - 更现代 */
.xiaozhi-ai-messages::-webkit-scrollbar {
    width: 8px;
}

.xiaozhi-ai-messages::-webkit-scrollbar-track {
    background: transparent;
    margin: 8px 0;
}

.xiaozhi-ai-messages::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    border-radius: 10px;
    border: 2px solid var(--xiaozhi-ai-bg-grey);
}

.xiaozhi-ai-messages::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--xiaozhi-ai-primary-dark) 0%, var(--xiaozhi-ai-primary) 100%);
}

/* ==================== 消息项 ==================== */
.xiaozhi-ai-message {
    display: flex;
    gap: 12px;
    animation: xiaozhi-ai-message-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes xiaozhi-ai-message-in {
    from {
        transform: translateY(15px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

/* AI 消息（左侧） */
.xiaozhi-ai-message.ai {
    flex-direction: row;
}

/* 用户消息（右侧） */
.xiaozhi-ai-message.user {
    flex-direction: row-reverse;
}

.xiaozhi-ai-message-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px var(--xiaozhi-ai-shadow);
    transition: transform 0.3s ease;
}

.xiaozhi-ai-message-avatar:hover {
    transform: scale(1.1);
}

.xiaozhi-ai-message.ai .xiaozhi-ai-message-avatar {
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
}

.xiaozhi-ai-message.user .xiaozhi-ai-message-avatar {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
}

.xiaozhi-ai-message-avatar i {
    font-size: 19px;
}

.xiaozhi-ai-message.ai .xiaozhi-ai-message-avatar i {
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.xiaozhi-ai-message.user .xiaozhi-ai-message-avatar i {
    color: var(--xiaozhi-ai-primary);
}

.xiaozhi-ai-message-content {
    max-width: 70%;
    padding: 14px 18px;
    border-radius: 16px;
    line-height: 1.65;
    font-size: 14px;
    word-wrap: break-word;
    position: relative;
    transition: all 0.3s ease;
}

.xiaozhi-ai-message-content:hover {
    transform: translateY(-2px);
}

.xiaozhi-ai-message.ai .xiaozhi-ai-message-content {
    background: var(--xiaozhi-ai-bg-light);
    color: var(--xiaozhi-ai-text-dark);
    border-bottom-left-radius: 6px;
    box-shadow:
        0 4px 16px var(--xiaozhi-ai-shadow),
        0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--xiaozhi-ai-border);
}

.xiaozhi-ai-message.user .xiaozhi-ai-message-content {
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    color: #ffffff;
    border-bottom-right-radius: 6px;
    box-shadow:
        0 4px 16px rgba(var(--xiaozhi-ai-primary-rgb), 0.3),
        0 2px 8px rgba(var(--xiaozhi-ai-primary-rgb), 0.2);
}

/* ==================== 欢迎消息 ==================== */
.xiaozhi-ai-welcome {
    text-align: center;
    padding: 50px 24px;
    color: var(--xiaozhi-ai-text-grey);
    animation: xiaozhi-ai-welcome-in 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes xiaozhi-ai-welcome-in {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.xiaozhi-ai-welcome i {
    font-size: 54px;
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    display: inline-block;
    animation: xiaozhi-ai-icon-float 3s infinite ease-in-out;
}

@keyframes xiaozhi-ai-icon-float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-8px) rotate(5deg);
    }
    75% {
        transform: translateY(-4px) rotate(-5deg);
    }
}

.xiaozhi-ai-welcome h3 {
    margin: 0 0 12px 0;
    font-size: 20px;
    font-weight: 700;
    color: var(--xiaozhi-ai-text-dark);
    letter-spacing: 0.3px;
}

.xiaozhi-ai-welcome p {
    margin: 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--xiaozhi-ai-text-grey);
}

/* ==================== 快捷问题 ==================== */
.xiaozhi-ai-quick-questions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 24px;
}

.xiaozhi-ai-quick-question {
    padding: 14px 18px;
    background: var(--xiaozhi-ai-bg-light);
    border: 1.5px solid var(--xiaozhi-ai-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-size: 13px;
    color: var(--xiaozhi-ai-text-grey);
    text-align: left;
    box-shadow: 0 2px 8px var(--xiaozhi-ai-shadow);
    position: relative;
    overflow: hidden;
}

.xiaozhi-ai-quick-question::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(var(--xiaozhi-ai-primary-rgb), 0.08) 100%);
    transition: width 0.4s ease;
}

.xiaozhi-ai-quick-question:hover {
    background: var(--xiaozhi-ai-bg-light);
    border-color: var(--xiaozhi-ai-primary);
    color: var(--xiaozhi-ai-primary);
    transform: translateY(-4px) translateX(4px);
    box-shadow:
        0 8px 20px var(--xiaozhi-ai-shadow-hover),
        0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.15);
}

.xiaozhi-ai-quick-question:hover::before {
    width: 100%;
}

.xiaozhi-ai-quick-question:active {
    transform: translateY(-2px) translateX(2px);
}

.xiaozhi-ai-quick-question i {
    margin-right: 8px;
    font-size: 13px;
    position: relative;
    z-index: 1;
}

/* 提示词图标图片样式 */
.xiaozhi-ai-question-icon-img {
    width: 20px;
    height: 20px;
    margin-right: 8px;
    vertical-align: middle;
    position: relative;
    z-index: 1;
    object-fit: contain;
    display: inline-block;
}

/* ==================== 输入区域 ==================== */
.xiaozhi-ai-input-area {
    padding: 20px 24px;
    background: var(--xiaozhi-ai-bg-light);
    border-top: 1px solid var(--xiaozhi-ai-border);
    flex-shrink: 0;
}

.xiaozhi-ai-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    position: relative;
}

.xiaozhi-ai-input {
    flex: 1;
    min-height: 44px;
    max-height: 120px;
    padding: 12px 18px;
    border: 1.5px solid var(--xiaozhi-ai-border);
    border-radius: 22px;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
    background: var(--xiaozhi-ai-bg-light);
    color: var(--xiaozhi-ai-text-dark);
    box-shadow: 0 2px 8px var(--xiaozhi-ai-shadow);
}

.xiaozhi-ai-input:focus {
    border-color: var(--xiaozhi-ai-primary);
    box-shadow:
        0 4px 16px var(--xiaozhi-ai-shadow-hover),
        0 0 0 3px rgba(var(--xiaozhi-ai-primary-rgb), 0.1);
    transform: translateY(-2px);
}

.xiaozhi-ai-input::placeholder {
    color: #999999;
}

.xiaozhi-ai-send-btn {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
    box-shadow:
        0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.3),
        0 2px 6px rgba(var(--xiaozhi-ai-primary-rgb), 0.2);
}

.xiaozhi-ai-send-btn:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow:
        0 6px 20px rgba(var(--xiaozhi-ai-primary-rgb), 0.45),
        0 3px 10px rgba(var(--xiaozhi-ai-primary-rgb), 0.3);
}

.xiaozhi-ai-send-btn:active {
    transform: scale(1.0) rotate(15deg);
}

.xiaozhi-ai-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: scale(1);
}

.xiaozhi-ai-send-btn i {
    font-size: 17px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* ==================== 加载状态 ==================== */
.xiaozhi-ai-loading {
    display: flex;
    gap: 6px;
    padding: 14px 18px;
}

.xiaozhi-ai-loading-dot {
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    border-radius: 50%;
    animation: xiaozhi-ai-bounce 1.4s infinite ease-in-out both;
    box-shadow: 0 2px 6px rgba(var(--xiaozhi-ai-primary-rgb), 0.3);
}

.xiaozhi-ai-loading-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.xiaozhi-ai-loading-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes xiaozhi-ai-bounce {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ==================== 底部信息 ==================== */
.xiaozhi-ai-footer {
    padding: 12px 24px;
    background: var(--xiaozhi-ai-bg-light);
    font-size: 11px;
    color: var(--xiaozhi-ai-text-grey);
    border-top: 1px solid var(--xiaozhi-ai-border);
    flex-shrink: 0;
    font-weight: 500;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

/* 正常状态下隐藏用户信息 */
.xiaozhi-ai-footer-left {
    display: none;
}

.xiaozhi-ai-footer-right {
    display: flex;
    align-items: center;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 放大状态下显示用户信息 */
.xiaozhi-ai-chat-window.expanded .xiaozhi-ai-footer {
    justify-content: space-between;
}

.xiaozhi-ai-chat-window.expanded .xiaozhi-ai-footer-left {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.xiaozhi-ai-footer a {
    color: var(--xiaozhi-ai-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.xiaozhi-ai-footer a:hover {
    text-decoration: underline;
    color: var(--xiaozhi-ai-primary-dark);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    /* 移动端触发按钮位置调整 */
    .xiaozhi-ai-trigger.position-bottom-right {
        right: 20px;
        bottom: 20px;
    }

    .xiaozhi-ai-trigger.position-bottom-left {
        left: 20px;
        bottom: 20px;
    }

    .xiaozhi-ai-trigger.position-top-right {
        right: 20px;
        top: 20px;
    }

    .xiaozhi-ai-trigger.position-top-left {
        left: 20px;
        top: 20px;
    }

    .xiaozhi-ai-trigger {
        width: 56px;
        height: 56px;
    }

    .xiaozhi-ai-trigger i {
        font-size: 26px;
    }

    /* 移动端聊天窗口全屏显示 */
    .xiaozhi-ai-chat-window {
        right: 0 !important;
        bottom: 0 !important;
        left: 0 !important;
        top: 0 !important;
        width: 100%;
        height: 100%;
        border-radius: 0;
    }

    .xiaozhi-ai-messages {
        padding: 20px 16px;
    }

    .xiaozhi-ai-input-area {
        padding: 16px;
    }

    /* 移动端底部信息调整 */
    .xiaozhi-ai-footer {
        padding: 10px 16px;
        gap: 0;
        justify-content: center;
    }

    .xiaozhi-ai-footer-left {
        flex: 1;
        min-width: auto;
        width: 100%;
    }

    /* 移动端隐藏技术支持文字 */
    .xiaozhi-ai-footer-right {
        display: none;
    }

    /* 移动端用户信息项调整 */
    .xiaozhi-ai-user-info {
        gap: 6px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .xiaozhi-ai-user-info-item {
        padding: 5px 10px;
        font-size: 11px;
    }

    .xiaozhi-ai-user-info-item i {
        font-size: 11px;
        margin-right: 4px;
    }

    /* 移动端放大状态（移动端本身已是全屏） */
    .xiaozhi-ai-chat-window.expanded {
        width: 100% !important;
        height: 100% !important;
        max-width: none !important;
        max-height: none !important;
        transform: none !important;
    }
}

/* ==================== 代码和特殊格式 ==================== */
.xiaozhi-ai-message-content code {
    background: rgba(var(--xiaozhi-ai-primary-rgb), 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
}

.xiaozhi-ai-message-content strong {
    font-weight: 700;
    color: var(--xiaozhi-ai-primary);
}

.xiaozhi-ai-message.user .xiaozhi-ai-message-content strong {
    color: #ffffff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* 登录链接样式 */
.xiaozhi-ai-message-content .xiaozhi-ai-login-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    color: #ffffff !important;
    text-decoration: none !important;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(var(--xiaozhi-ai-primary-rgb), 0.3);
    margin-top: 10px;
}

.xiaozhi-ai-message-content .xiaozhi-ai-login-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.45);
}

.xiaozhi-ai-message-content .xiaozhi-ai-login-link:active {
    transform: translateY(0);
}

.xiaozhi-ai-message-content .xiaozhi-ai-login-link i {
    font-size: 14px;
}

/* ==================== 输入框滚动条美化 ==================== */
.xiaozhi-ai-input::-webkit-scrollbar {
    width: 8px;
}

.xiaozhi-ai-input::-webkit-scrollbar-track {
    background: transparent;
    margin: 4px 0;
}

.xiaozhi-ai-input::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    border-radius: 10px;
    border: 2px solid var(--xiaozhi-ai-bg-light);
    transition: all 0.3s ease;
}

.xiaozhi-ai-input::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--xiaozhi-ai-primary-dark) 0%, var(--xiaozhi-ai-primary) 100%);
    border-width: 1px;
}

/* Firefox滚动条美化 */
.xiaozhi-ai-input {
    scrollbar-width: thin;
    scrollbar-color: var(--xiaozhi-ai-primary) transparent;
}

/* ==================== 复制按钮 ==================== */
.xiaozhi-ai-message-content {
    position: relative;
    padding-right: 45px !important; /* 为复制按钮预留空间 */
}

.xiaozhi-ai-copy-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 32px;
    height: 32px;
    background: var(--xiaozhi-ai-bg-light);
    border: 1px solid var(--xiaozhi-ai-border);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 3;
    box-shadow: 0 2px 8px var(--xiaozhi-ai-shadow);
}

.xiaozhi-ai-message-content:hover .xiaozhi-ai-copy-btn {
    opacity: 1;
}

.xiaozhi-ai-copy-btn:hover {
    background: rgba(var(--xiaozhi-ai-primary-rgb), 0.1);
    border-color: var(--xiaozhi-ai-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.2);
}

.xiaozhi-ai-copy-btn:active {
    transform: translateY(0);
}

.xiaozhi-ai-copy-btn i {
    font-size: 14px;
    color: var(--xiaozhi-ai-primary);
    transition: all 0.2s ease;
}

.xiaozhi-ai-copy-btn.copied {
    background: rgba(34, 197, 94, 0.1);
    border-color: #22c55e;
}

.xiaozhi-ai-copy-btn.copied i {
    color: #22c55e;
}

/* 用户消息的复制按钮（白色背景） */
.xiaozhi-ai-message.user .xiaozhi-ai-copy-btn {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(255, 255, 255, 0.3);
}

.xiaozhi-ai-message.user .xiaozhi-ai-copy-btn:hover {
    background: rgba(255, 255, 255, 1);
    border-color: rgba(255, 255, 255, 0.6);
}

/* ==================== 自定义确认对话框 ==================== */
.xiaozhi-ai-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: xiaozhi-ai-modal-fade-in 0.3s ease;
}

@keyframes xiaozhi-ai-modal-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.xiaozhi-ai-modal {
    background: var(--xiaozhi-ai-bg-light);
    border-radius: 16px;
    padding: 28px;
    max-width: 400px;
    width: calc(100% - 40px);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 8px 24px rgba(0, 0, 0, 0.2);
    animation: xiaozhi-ai-modal-slide-up 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

@keyframes xiaozhi-ai-modal-slide-up {
    from {
        transform: translateY(30px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.xiaozhi-ai-modal-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.xiaozhi-ai-modal-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.xiaozhi-ai-modal-icon i {
    font-size: 22px;
    color: #ffffff;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.xiaozhi-ai-modal-title {
    flex: 1;
}

.xiaozhi-ai-modal-title h3 {
    margin: 0 0 4px 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--xiaozhi-ai-text-dark);
}

.xiaozhi-ai-modal-title p {
    margin: 0;
    font-size: 13px;
    color: var(--xiaozhi-ai-text-grey);
}

.xiaozhi-ai-modal-content {
    margin: 20px 0 24px 0;
    font-size: 14px;
    line-height: 1.6;
    color: var(--xiaozhi-ai-text-dark);
}

.xiaozhi-ai-modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.xiaozhi-ai-modal-btn {
    padding: 10px 24px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: none;
    outline: none;
}

.xiaozhi-ai-modal-btn-cancel {
    background: var(--xiaozhi-ai-bg-grey);
    color: var(--xiaozhi-ai-text-dark);
    border: 1px solid var(--xiaozhi-ai-border);
}

.xiaozhi-ai-modal-btn-cancel:hover {
    background: var(--xiaozhi-ai-bg-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--xiaozhi-ai-shadow);
}

.xiaozhi-ai-modal-btn-confirm {
    background: linear-gradient(135deg, var(--xiaozhi-ai-primary) 0%, var(--xiaozhi-ai-primary-dark) 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(var(--xiaozhi-ai-primary-rgb), 0.3);
}

.xiaozhi-ai-modal-btn-confirm:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--xiaozhi-ai-primary-rgb), 0.45);
}

.xiaozhi-ai-modal-btn-confirm:active,
.xiaozhi-ai-modal-btn-cancel:active {
    transform: translateY(0);
}

/* 暗色模式已通过 CSS 变量自动适配 */