/**
 * 组件样式（按钮、表单、卡片等）
 * 补充 Material Design 3 组件样式
 *
 * 本文件中与"搜索"相关的样式已集中在一起，按功能分组：
 * 1. 搜索表单基础样式
 * 2. 搜索按钮基础样式（包含覆盖系统原有样式）
 * 3. 搜索图标（SVG）样式
 * 4. 防重复规则（只保留一个图标）
 */

/* ===== Material Design 3 商品分类按钮样式 ===== */
.mdc-category-toggle {
    flex-shrink: 0;
    margin-left: 0;
    height: 40px !important;
    padding: 0 16px !important;
    min-width: auto !important;
    border-radius: 20px !important;
    background-color: transparent !important;
    color: var(--md-sys-color-on-surface) !important;
    font-weight: 500 !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    border: 1.5px solid transparent !important;
}

.mdc-category-toggle:hover {
    background-color: var(--md-sys-color-surface-container-highest) !important;
    border-color: var(--md-sys-color-outline-variant) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
}

.mdc-category-toggle:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08) !important;
}

.mdc-category-toggle .mdc-button__icon {
    margin-right: 4px;
    font-size: 20px;
}

.mdc-category-toggle .mdc-button__label {
    font-size: 14px;
}

/* ===== Material Design 3 商品分类下拉抽屉样式 ===== */
.mdc-category-drawer {
    position: fixed;
    top: 94px; /* 顶部栏(30px) + 主页头(64px) */
    left: 0;
    right: 0;
    z-index: 999; /* 低于主页面头部（1000），确保不覆盖页头，但高于普通内容 */
    max-height: 0;
    overflow: hidden;
    background-color: var(--md-sys-color-surface);
    box-shadow: var(--md-sys-elevation-level3);
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    display: block !important;
    visibility: visible !important;
    pointer-events: none;
}

.mdc-category-drawer--open {
    max-height: 600px;
    box-shadow: var(--md-sys-elevation-level5);
    pointer-events: auto;
}

/* PC版移除分类抽屉阴影 */
@media (min-width: 768px) {
    .mdc-category-drawer {
        box-shadow: none !important;
    }
    
    .mdc-category-drawer--open {
        box-shadow: none !important;
    }
}

.mdc-category-drawer__content {
    padding: 0;
    display: flex;
    flex-direction: column;
    pointer-events: auto;
}

.mdc-category-drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px !important; /* 移除上下内边距 */
    height: 36px !important; /* 固定高度36px */
    min-height: 36px !important; /* 最小高度36px */
    max-height: 36px !important; /* 最大高度36px */
    box-sizing: border-box !important; /* 确保padding包含在高度内 */
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    background-color: var(--md-sys-color-surface-container);
    line-height: 36px !important; /* 设置行高为36px，确保内容垂直居中 */
    overflow: hidden !important; /* 防止内容溢出 */
}

.mdc-category-drawer__title {
    font-family: var(--md-sys-typescale-title-medium-font);
    font-size: 16px !important; /* 固定字体大小 */
    font-weight: var(--md-sys-typescale-title-medium-weight);
    color: var(--md-sys-color-on-surface);
    margin: 0 !important;
    padding: 0 !important;
    line-height: 36px !important; /* 行高与容器高度一致，确保垂直居中 */
    display: flex !important;
    align-items: center !important;
    height: 36px !important; /* 固定高度 */
    overflow: hidden !important; /* 防止内容溢出 */
}

.mdc-category-drawer__close {
    width: 36px; /* 调整宽度，与标题栏高度一致 */
    height: 36px; /* 调整高度，与标题栏高度一致 */
    padding: 0; /* 移除内边距，使用固定尺寸 */
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
    flex-shrink: 0; /* 防止按钮被压缩 */
}

.mdc-category-drawer__close:hover {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

.mdc-category-drawer__close .material-symbols-outlined {
    font-size: 20px !important; /* 调整图标大小，适配36px按钮 */
    width: 20px !important;
    height: 20px !important;
    line-height: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.mdc-category-drawer__body {
    padding: 16px;
    max-height: 500px;
    overflow-y: auto;
}

.mdc-category-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mdc-category-item {
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-sys-shape-corner-small);
    background-color: var(--md-sys-color-surface);
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.mdc-category-item:hover {
    box-shadow: var(--md-sys-elevation-level1);
}

.mdc-category-item__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.mdc-category-item__header:hover {
    background-color: var(--md-sys-color-surface-container);
}

.mdc-category-item__title {
    font-family: var(--md-sys-typescale-title-small-font);
    font-size: var(--md-sys-typescale-title-small-size);
    font-weight: var(--md-sys-typescale-title-small-weight);
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    flex: 1;
    pointer-events: auto;
    z-index: 1;
    position: relative;
}

.mdc-category-item__title:hover {
    color: var(--md-sys-color-primary);
}

.mdc-category-item__arrow {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
    transition: transform 0.2s;
}

.mdc-category-item--open .mdc-category-item__arrow {
    transform: rotate(90deg);
}

.mdc-category-item__children {
    display: none;
    padding: 8px 16px 12px;
    background-color: var(--md-sys-color-surface-container-lowest);
    flex-wrap: wrap;
    gap: 8px;
}

.mdc-category-item--open .mdc-category-item__children {
    display: flex;
}

.mdc-category-item__child {
    padding: 6px 12px;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-sys-shape-corner-extra-small);
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.mdc-category-item__child:hover {
    background-color: var(--md-sys-color-primary-container);
    border-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary-container);
}

.mdc-category-loading,
.mdc-category-error,
.mdc-category-empty {
    padding: 24px;
    text-align: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 14px;
}

/* 移动端适配 */
@media (max-width: 767px) {
    .mdc-category-drawer {
        top: 56px; /* 移动端只有主页头高度 */
    }
    
    /* 手机版隐藏分类按钮（多种选择器确保隐藏） */
    .mdc-category-toggle,
    .mdc-category-toggle.hide-category,
    .mdc-top-app-bar__section .mdc-category-toggle,
    .mdc-top-app-bar__section--align-center .mdc-category-toggle {
        display: none !important; /* 移动端隐藏分类按钮 */
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
    }
}

/* ===== Material Design 3 二维码下拉抽屉样式 ===== */
.mdc-qrcode-drawer {
    position: fixed;
    top: 30px; /* 顶部栏高度 */
    left: 0;
    width: auto;
    max-width: 320px; /* 限制最大宽度 */
    min-width: 280px;
    z-index: 999; /* 低于主页面头部（1000），确保不覆盖页头，但高于普通内容 */
    max-height: 0;
    overflow: hidden;
    background-color: var(--md-sys-color-surface);
    box-shadow: var(--md-sys-elevation-level3);
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s, left 0.3s;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    border-left: 1px solid var(--md-sys-color-outline-variant);
    border-right: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 0 0 var(--md-sys-shape-corner-large) var(--md-sys-shape-corner-large);
    display: block !important;
    visibility: visible !important;
    /* 确保抽屉不会影响主页面头部的显示 */
    pointer-events: none;
}

.mdc-qrcode-drawer--open {
    max-height: 380px;
    box-shadow: var(--md-sys-elevation-level5);
    pointer-events: auto; /* 打开时允许交互 */
}

/* PC版移除二维码抽屉阴影 */
@media (min-width: 768px) {
    .mdc-qrcode-drawer {
        box-shadow: none !important;
    }
    
    .mdc-qrcode-drawer--open {
        box-shadow: none !important;
    }
}

.mdc-qrcode-drawer__content {
    padding: 0;
    display: flex;
    flex-direction: column;
    pointer-events: auto; /* 内容区域允许交互 */
}

.mdc-qrcode-drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    background-color: var(--md-sys-color-surface-container);
}

.mdc-qrcode-drawer__title {
    font-family: var(--md-sys-typescale-title-medium-font);
    font-size: var(--md-sys-typescale-title-medium-size);
    font-weight: var(--md-sys-typescale-title-medium-weight);
    color: var(--md-sys-color-on-surface);
    margin: 0;
    padding: 0;
}

.mdc-qrcode-drawer__close {
    width: 40px;
    height: 40px;
    padding: 8px;
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
}

.mdc-qrcode-drawer__close:hover {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

.mdc-qrcode-drawer__close .material-symbols-outlined {
    font-size: 24px;
}

.mdc-qrcode-drawer__body {
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mdc-qrcode-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.mdc-qrcode-image {
    width: 180px;
    height: 180px;
    max-width: 100%;
    border-radius: var(--md-sys-shape-corner-small);
    box-shadow: var(--md-sys-elevation-level2);
    background-color: var(--md-sys-color-surface-container);
    padding: 8px;
}

.mdc-qrcode-text-primary {
    font-family: var(--md-sys-typescale-title-medium-font);
    font-size: var(--md-sys-typescale-title-medium-size);
    font-weight: var(--md-sys-typescale-title-medium-weight);
    color: var(--md-sys-color-on-surface);
    margin: 0;
    padding: 0 8px;
    line-height: 1.4;
    text-align: center;
}

.mdc-qrcode-text-secondary {
    font-family: var(--md-sys-typescale-body-medium-font);
    font-size: var(--md-sys-typescale-body-medium-size);
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
    padding: 0 8px;
    line-height: 1.4;
    text-align: center;
}

/* 深色主题适配 */
[data-theme="dark"] .mdc-qrcode-drawer,
:root.theme-dark .mdc-qrcode-drawer {
    background-color: var(--md-sys-color-surface-container);
    border-bottom-color: var(--md-sys-color-outline-variant);
}

[data-theme="dark"] .mdc-qrcode-drawer__header,
:root.theme-dark .mdc-qrcode-drawer__header {
    background-color: var(--md-sys-color-surface-container-high);
    border-bottom-color: var(--md-sys-color-outline-variant);
}

/* 移动端适配 */
@media (max-width: 767px) {
    .mdc-qrcode-drawer {
        top: 0; /* 手机版顶部栏已隐藏，从顶部开始 */
        left: 0;
        max-width: 90vw;
        min-width: 260px;
    }
    
    .mdc-qrcode-drawer__body {
        padding: 12px;
    }
    
    .mdc-qrcode-image {
        width: 160px;
        height: 160px;
    }
    
    .mdc-qrcode-container {
        gap: 10px;
    }
}

/* ===================================================================
 * 1. 搜索表单基础样式
 * =================================================================== */

.mdc-search-form {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

/* 搜索模块选择器样式（电脑版统一美化） */
.mdc-search-module-select {
    flex-shrink: 0;
}

.mdc-search-module-select .mdc-select {
    /* 根据文本自动扩展宽度，保留一个合理的最小值 */
    min-width: 80px;
    max-width: 200px;
    height: 100%; /* 占据容器全部高度 */
    padding: 8px 32px 8px 14px;
    border: none; /* 移除边框，使用整体容器的边框 */
    border-radius: 24px 0 0 24px; /* 左侧圆角，右侧直角（与搜索框连接） */
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    font-family: var(--md-sys-typescale-body-medium-font);
    font-size: var(--md-sys-typescale-body-medium-size);
    font-weight: 500;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    box-shadow: none; /* 移除单独阴影，使用整体阴影 */
    box-sizing: border-box;
}

.mdc-search-module-select .mdc-select:hover {
    background-color: var(--md-sys-color-surface-container-high);
}

.mdc-search-module-select .mdc-select:focus {
    outline: none;
    background-color: var(--md-sys-color-surface);
}

/* 移动端搜索模块选择器 */
.mdc-search-module-select-mobile {
    margin-bottom: 12px;
    width: 100%;
}

.mdc-search-module-select-mobile .mdc-select {
    width: 100%;
    height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: var(--md-sys-typescale-body-medium-font);
    font-size: var(--md-sys-typescale-body-medium-size);
    line-height: 1.5;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 32px;
    box-sizing: border-box;
}

.mdc-search-module-select-mobile .mdc-select:hover {
    border-color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-surface-container);
}

.mdc-search-module-select-mobile .mdc-select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 2px rgba(var(--md-sys-color-primary-rgb, 33, 150, 243), 0.2);
}

.mdc-search-form .mdc-text-field {
    position: relative;
    flex: 1;
    min-width: 0; /* 允许搜索框占据所有可用空间 */
    width: 100%;
    height: 100%; /* 在整体容器中占据全部高度 */
    max-width: none; /* 移除最大宽度限制 */
}

/* 搜索表单占据最大可用空间 */
.mdc-top-app-bar__section--align-center {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mdc-top-app-bar__section--align-center .mdc-search-form {
    flex: 1;
    min-width: 0;
    max-width: none; /* 移除最大宽度限制，允许搜索框更宽 */
    width: 100%;
}

/* 美化搜索框样式（电脑版统一美化） */
.mdc-search-form .mdc-text-field--outlined {
    padding: 0 !important; /* 移除所有padding，由input内部padding控制 */
    border-radius: 0 !important; /* 中间部分无圆角，与分类选择器和搜索按钮连接 */
    border: none !important; /* 移除所有边框，使用整体容器的边框 */
    background-color: var(--md-sys-color-surface-container) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: none !important; /* 移除单独阴影，使用整体阴影 */
    height: 100% !important; /* 占据容器全部高度 */
    min-height: 40px !important; /* 搜索框高度：40px，不受全局56px影响 */
    display: flex !important;
    align-items: center !important;
    margin: 0 !important;
}

/* 电脑版搜索框在整体容器中的背景色变化 */
.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn):hover .mdc-text-field--outlined {
    background-color: var(--md-sys-color-surface-container-high) !important;
}

.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn):focus-within .mdc-text-field--outlined {
    background-color: var(--md-sys-color-surface) !important;
}

/* 当搜索框单独存在时（手机版），恢复圆角 */
.mdc-search-form:not(:has(.mdc-search-module-select)) .mdc-text-field--outlined,
.mdc-search-form:not(:has(.mdc-search-submit-btn)) .mdc-text-field--outlined,
.mdc-search-form:has(.hide-mobile-search-btn) .mdc-text-field--outlined {
    border-radius: 24px !important;
    border-left: 1.5px solid var(--md-sys-color-outline) !important;
    border-right: 1.5px solid var(--md-sys-color-outline) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08) !important;
}

/* 手机版搜索框单独样式（无分类选择器和搜索按钮时） */
.mdc-search-form:not(:has(.mdc-search-module-select)) .mdc-text-field--outlined:hover,
.mdc-search-form:not(:has(.mdc-search-submit-btn)) .mdc-text-field--outlined:hover {
    border-color: var(--md-sys-color-primary) !important;
    background-color: var(--md-sys-color-surface-container-high) !important;
}

.mdc-search-form:not(:has(.mdc-search-module-select)) .mdc-text-field--outlined:focus-within,
.mdc-search-form:not(:has(.mdc-search-submit-btn)) .mdc-text-field--outlined:focus-within {
    border-color: var(--md-sys-color-primary) !important;
    border-width: 2px !important;
    background-color: var(--md-sys-color-surface) !important;
}

/* 电脑版搜索表单整体样式（形成连续整体） */
.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn) {
    background-color: transparent;
    border: 1.5px solid var(--md-sys-color-outline);
    border-radius: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
    overflow: hidden;
    gap: 0 !important; /* 移除元素之间的间距 */
    align-items: stretch; /* 确保所有子元素高度一致 */
    height: 40px; /* 固定整体高度 */
}

/* 手机版搜索表单样式（无搜索按钮时） */
@media (max-width: 767px) {
    .mdc-search-form:has(.hide-mobile-search-btn),
    .mdc-search-form:not(:has(.mdc-search-submit-btn:not(.hide-mobile-search-btn))) {
        gap: 0 !important;
    }
    
    /* 手机版搜索框单独显示时的样式 */
    .mdc-search-form .mdc-text-field--outlined {
        border-radius: 24px !important;
        border-left: 1.5px solid var(--md-sys-color-outline) !important;
        border-right: 1.5px solid var(--md-sys-color-outline) !important;
    }
}

.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn):hover {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
    transform: translateY(-1px);
}

.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn):focus-within {
    border-color: var(--md-sys-color-primary);
    border-width: 2px;
    box-shadow: 0 4px 12px rgba(var(--md-sys-color-primary-rgb, 33, 150, 243), 0.15);
}

/* 电脑版搜索按钮hover效果 */
.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn) .mdc-search-submit-btn:hover {
    background: var(--md-sys-color-primary) !important;
    filter: brightness(1.1);
    transform: scale(1.05);
}

.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn) .mdc-search-submit-btn:active {
    transform: scale(0.98);
}

.mdc-search-form .mdc-text-field__icon {
    display: none !important;
}

.mdc-search-form .mdc-text-field__input {
    padding-left: 16px !important;
    padding-right: 16px !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    font-size: 15px !important;
    line-height: 40px !important; /* 与搜索框高度一致，实现垂直居中 */
    height: 40px !important; /* 确保输入框高度与容器一致 */
    box-sizing: border-box !important;
    vertical-align: middle !important;
    margin: 0 !important;
}

.mdc-search-form .mdc-text-field__input::placeholder {
    color: var(--md-sys-color-on-surface-variant) !important;
    opacity: 0.7 !important;
}

/* 搜索表单移动端样式 */
.mdc-search-form-mobile {
    padding: 16px;
}

.mdc-search-form-mobile__row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.mdc-search-module-select-mobile {
    flex-shrink: 0;
}

.mdc-search-module-select-mobile .mdc-select {
    height: 40px;
    min-width: 80px;
}

.mdc-search-form-mobile__input {
    flex: 1;
    min-width: 0;
}

.mdc-search-form-mobile__input .mdc-text-field {
    width: 100%;
    margin-bottom: 0;
}

.mdc-search-submit-btn-mobile {
    flex-shrink: 0;
    height: 40px !important;
    width: 40px !important;
    min-width: 40px !important;
    padding: 0 !important;
    border-radius: 50%;
}

.mdc-category-toggle-mobile {
    width: 100%;
    height: 40px !important;
    margin-top: 0;
}

/* ===================================================================
 * 2. 搜索按钮基础样式
 * =================================================================== */

.mdc-search-form .mdc-search-submit-btn,
.mdc-search-form .mdc-button--icon.mdc-search-submit-btn,
.mdc-search-form button.mdc-button--icon.mdc-search-submit-btn,
#destoon-search .mdc-search-submit-btn,
form#destoon-search .mdc-search-submit-btn {
    position: relative !important;
    overflow: hidden !important;
    background: var(--md-sys-color-primary) !important;
    background-image: none !important;
    background-repeat: no-repeat !important;
    background-position: center !important;
    background-size: auto !important;
    text-indent: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 !important;
    min-width: 48px !important;
    width: 48px !important;
    border: none !important; /* 移除边框，与搜索框无缝连接 */
    border-radius: 0 24px 24px 0 !important; /* 右侧圆角，左侧直角（与搜索框连接） */
    box-shadow: none !important; /* 移除单独阴影，使用整体阴影 */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    flex-shrink: 0 !important;
    margin: 0 !important;
    gap: 0 !important;
    box-sizing: border-box !important;
    color: var(--md-sys-color-on-primary) !important;
    /* 确保只显示 SVG 图标，隐藏所有 Material Symbols 图标 */
    font-family: inherit !important;
}

/* 电脑版搜索按钮在整体容器中的样式 */
.mdc-search-form:has(.mdc-search-module-select):has(.mdc-search-submit-btn) .mdc-search-submit-btn {
    height: 100% !important;
}

/* 手机版搜索按钮（单独存在时） */
.mdc-search-form:not(:has(.mdc-search-module-select)) .mdc-search-submit-btn {
    height: 40px !important;
    border-radius: 24px !important;
}

/* ===================================================================
 * 3. 搜索图标样式（SVG）
 * =================================================================== */

.mdc-search-form .mdc-search-submit-btn .mdc-search-icon,
#destoon-search .mdc-search-submit-btn .mdc-search-icon,
form#destoon-search .mdc-search-submit-btn .mdc-search-icon {
    display: block !important;
    width: 24px !important;
    height: 24px !important;
    margin: 0 !important;
    padding: 0 !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    -webkit-transform: translate(-50%, -50%) !important;
    /* 移除 SVG 的 fill，只让 path 控制填充 */
    fill: none !important;
    stroke: none !important;
    /* 明确设置颜色，避免主题切换时的继承问题 */
    color: var(--md-sys-color-on-primary) !important;
    background: none !important;
    user-select: none !important;
    -webkit-user-select: none !important;
    z-index: 1 !important;
    /* 防止重复渲染 */
    -webkit-backface-visibility: hidden !important;
    backface-visibility: hidden !important;
    /* 防止主题切换时的颜色冲突 */
    isolation: isolate !important;
}

/* SVG 内的 path 元素样式 */
.mdc-search-form .mdc-search-submit-btn .mdc-search-icon path,
#destoon-search .mdc-search-submit-btn .mdc-search-icon path,
form#destoon-search .mdc-search-submit-btn .mdc-search-icon path {
    /* 直接使用按钮的颜色变量，而不是 currentColor，避免主题切换时的颜色冲突 */
    fill: var(--md-sys-color-on-primary) !important;
    stroke: none !important;
    stroke-width: 0 !important;
    display: block !important;
    /* 防止重复渲染 */
    -webkit-backface-visibility: hidden !important;
    backface-visibility: hidden !important;
    /* 确保只有一个path可见 */
    opacity: 1 !important;
    /* 防止主题切换时的颜色继承问题 */
    color: inherit !important;
}

/* ===================================================================
 * 4. 防重复规则（确保只有一个图标）
 * =================================================================== */

/* 隐藏所有伪元素 */
.mdc-search-submit-btn::before,
.mdc-search-submit-btn::after,
#destoon-search .mdc-search-submit-btn::before,
#destoon-search .mdc-search-submit-btn::after,
form#destoon-search .mdc-search-submit-btn::before,
form#destoon-search .mdc-search-submit-btn::after,
.mdc-search-form .mdc-search-submit-btn::before,
.mdc-search-form .mdc-search-submit-btn::after {
    display: none !important;
    content: none !important;
    background: none !important;
    font-size: 0 !important;
}

/* 隐藏 SVG 和 path 的伪元素 */
.mdc-search-submit-btn .mdc-search-icon::before,
.mdc-search-submit-btn .mdc-search-icon::after,
.mdc-search-submit-btn .mdc-search-icon path::before,
.mdc-search-submit-btn .mdc-search-icon path::after,
#destoon-search .mdc-search-submit-btn .mdc-search-icon::before,
#destoon-search .mdc-search-submit-btn .mdc-search-icon::after,
#destoon-search .mdc-search-submit-btn .mdc-search-icon path::before,
#destoon-search .mdc-search-submit-btn .mdc-search-icon path::after {
    display: none !important;
    content: none !important;
}

/* 隐藏第二个及之后的 SVG 图标 */
.mdc-search-submit-btn > svg:not(.mdc-search-icon):not(:first-child),
.mdc-search-submit-btn > .mdc-search-icon:not(:first-of-type),
#destoon-search .mdc-search-submit-btn > svg:not(.mdc-search-icon):not(:first-child),
#destoon-search .mdc-search-submit-btn > .mdc-search-icon:not(:first-of-type),
form#destoon-search .mdc-search-submit-btn > svg:not(.mdc-search-icon):not(:first-child),
form#destoon-search .mdc-search-submit-btn > .mdc-search-icon:not(:first-of-type),
.mdc-search-form .mdc-search-submit-btn > svg:not(.mdc-search-icon),
.mdc-search-form .mdc-search-submit-btn > .mdc-search-icon:not(:first-of-type) {
    display: none !important;
}

/* 隐藏第二个及之后的 path */
.mdc-search-submit-btn .mdc-search-icon path:not(:first-child),
#destoon-search .mdc-search-submit-btn .mdc-search-icon path:not(:first-child),
form#destoon-search .mdc-search-submit-btn .mdc-search-icon path:not(:first-child),
.mdc-search-form .mdc-search-submit-btn .mdc-search-icon path:not(:first-child) {
    display: none !important;
    fill: none !important;
    stroke: none !important;
}

/* 隐藏其他不需要的元素（确保按钮内只有一个 SVG 图标） */
/* 隐藏所有 Material Symbols 图标 */
.mdc-search-form .mdc-search-submit-btn .material-symbols-outlined,
.mdc-search-form .mdc-search-submit-btn > .material-symbols-outlined,
.mdc-search-form .mdc-search-submit-btn .mdc-button__icon,
.mdc-search-form .mdc-search-submit-btn > .mdc-button__icon,
#destoon-search .mdc-search-submit-btn .material-symbols-outlined,
#destoon-search .mdc-search-submit-btn > .material-symbols-outlined,
#destoon-search .mdc-search-submit-btn .mdc-button__icon,
form#destoon-search .mdc-search-submit-btn .material-symbols-outlined,
form#destoon-search .mdc-search-submit-btn > .material-symbols-outlined,
form#destoon-search .mdc-search-submit-btn .mdc-button__icon,
.mdc-search-submit-btn .material-symbols-outlined,
.mdc-search-submit-btn > .material-symbols-outlined {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
    font-size: 0 !important;
    line-height: 0 !important;
    overflow: hidden !important;
    position: absolute !important;
    left: -9999px !important;
}

/* 隐藏所有非 SVG 搜索图标的子元素 */
.mdc-search-form .mdc-search-submit-btn > *:not(.mdc-search-icon),
#destoon-search .mdc-search-submit-btn > *:not(.mdc-search-icon),
form#destoon-search .mdc-search-submit-btn > *:not(.mdc-search-icon) {
    display: none !important;
}

/* 强制隐藏桌面端搜索按钮中的所有 Material Symbols 图标（防止字体图标渲染） */
.mdc-search-form .mdc-search-submit-btn,
#destoon-search .mdc-search-submit-btn,
form#destoon-search .mdc-search-submit-btn {
    /* 防止 Material Symbols 字体渲染图标 */
    font-family: inherit !important;
    font-size: 0 !important;
    line-height: 0 !important;
    /* 确保按钮内只有 SVG 可见 */
    text-indent: -9999px !important;
    overflow: hidden !important;
}

/* 确保按钮内的 SVG 是唯一可见的元素 */
.mdc-search-form .mdc-search-submit-btn .mdc-search-icon,
#destoon-search .mdc-search-submit-btn .mdc-search-icon,
form#destoon-search .mdc-search-submit-btn .mdc-search-icon {
    /* 重置文本相关属性，防止字体图标渲染 */
    font-family: inherit !important;
    font-size: 0 !important;
    line-height: 0 !important;
    text-indent: 0 !important;
}

/* ===================================================================
 * 5. 移动端搜索按钮样式（SVG 图标）
 * =================================================================== */

/* 移动端搜索按钮（使用 SVG 图标，避免 Material Symbols 图标问题） */
/* 默认隐藏，只在移动端显示 */
#searchToggle.mdc-icon-button {
    display: none !important;
}

/* 移动端搜索按钮：在 ≤767px 时隐藏（因为搜索框直接显示了），在 ≥768px 时隐藏
   使用标准的移动端断点，与项目中其他移动端样式保持一致 */
@media (max-width: 767px) {
    #searchToggle.mdc-icon-button {
        display: none !important; /* 移动端隐藏搜索按钮，因为搜索框直接显示了 */
        position: relative;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        padding: 12px;
        border: none;
        background: transparent;
        color: var(--md-sys-color-on-surface);
        cursor: pointer;
        border-radius: 50%;
        transition: background-color 0.2s;
    }
}

/* 桌面端（≥768px）隐藏移动端搜索按钮 */
@media (min-width: 768px) {
    #searchToggle.mdc-icon-button {
        display: none !important;
    }
}

/* 桌面版搜索表单：默认显示 */
.hide-search-desktop {
    display: flex !important;
}

/* 顶部左侧三条杠导航按钮：使用全局 .mdc-icon-button 尺寸（48x48） */

/* #navToggle 图标大小改到 material-design-3.css 里统一控制，这里不再单独指定 */

/* 移动端搜索表单样式优化 */
@media (max-width: 767px) {
    /* 移动端显示搜索框 */
    .hide-search-desktop {
        display: flex !important;
    }
    
    /* 手机版隐藏搜索按钮（已移到下拉抽屉） */
    .mdc-search-submit-btn,
    .mdc-search-submit-btn.hide-mobile-search-btn,
    .mdc-search-form .mdc-search-submit-btn,
    .mdc-search-form .mdc-button.mdc-search-submit-btn,
    #destoon-search .mdc-search-submit-btn,
    form#destoon-search .mdc-search-submit-btn {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
        width: 0 !important;
        height: 0 !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    /* 移动端搜索表单布局调整 */
    .mdc-top-app-bar__section--align-center .mdc-search-form {
        flex: 1;
        max-width: 100%;
        gap: 0 !important; /* 移除gap，因为搜索按钮已隐藏 */
        margin: 0 4px;
        align-items: center;
        height: 100%;
        position: relative; /* 为下拉抽屉提供定位上下文 */
    }
    
    /* 移动端搜索输入框样式 */
    .mdc-top-app-bar__section--align-center .mdc-search-form .mdc-text-field {
        flex: 1;
        min-width: 0;
        max-width: none;
        height: 40px;
    }
    
    .mdc-top-app-bar__section--align-center .mdc-search-form .mdc-text-field--outlined {
        height: 40px;
        border-radius: 20px !important; /* 手机版更圆润 */
        padding-left: 14px !important;
    }
    
    .mdc-top-app-bar__section--align-center .mdc-search-form .mdc-text-field__input {
        height: 40px;
        padding: 8px 14px;
        font-size: 14px;
        line-height: 1.5;
    }
    
    /* 手机版商品分类按钮 */
    .mdc-top-app-bar__section--align-center .mdc-category-toggle {
        height: 40px !important;
        padding: 0 14px !important;
        border-radius: 20px !important;
    }
    
}

#searchToggle.mdc-icon-button:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

#searchToggle.mdc-icon-button:focus {
    outline: none;
    background-color: rgba(0, 0, 0, 0.08);
}

/* 移动端搜索按钮的 SVG 图标 */
#searchToggle .mdc-search-icon-mobile {
    display: block;
}

/* ===================================================================
 * 6. 聊天窗口样式
 * =================================================================== */

/* 聊天浮动按钮（右下角）— 默认藏在右侧边缘，鼠标悬停时滑出 */
.mdc-chat-fab {
    position: fixed;
    top: 50%;
    right: 0;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, var(--md-sys-color-primary-container) 100%);
    color: var(--md-sys-color-on-primary);
    border: 2px solid var(--md-sys-color-surface);
    box-shadow: 0 4px 12px rgba(var(--md-sys-color-primary-rgb, 25, 118, 210), 0.3), 
                0 2px 4px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    z-index: 999;
    display: flex !important;
    align-items: center;
    justify-content: center;
    overflow: visible;
    /* 默认藏到右侧边缘外，垂直居中 */
    transform: translateX(44px) translateY(-50%) !important;
    opacity: 0.5 !important;
    visibility: visible !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mdc-chat-fab::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, var(--md-sys-color-primary-container) 100%);
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    z-index: -1;
    filter: blur(8px);
}

/* 鼠标悬停：从右边缘滑出完整显示 */
.mdc-chat-fab:hover {
    transform: translateX(-16px) translateY(-50%) !important;
    opacity: 1 !important;
    box-shadow: 0 8px 20px rgba(var(--md-sys-color-primary-rgb, 25, 118, 210), 0.4), 
                0 4px 8px rgba(0, 0, 0, 0.25) !important;
}

.mdc-chat-fab:hover::before {
    opacity: 0.6;
    transform: scale(1.1);
}

.mdc-chat-fab:active {
    transform: translateX(-16px) translateY(-50%) scale(0.95) !important;
    box-shadow: 0 2px 8px rgba(var(--md-sys-color-primary-rgb, 25, 118, 210), 0.3), 
                0 1px 2px rgba(0, 0, 0, 0.2) !important;
}

.mdc-chat-fab__badge {
    position: absolute;
    top: -2px;
    right: -2px;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    font-size: 11px;
    font-weight: 600;
    line-height: 20px;
    background: linear-gradient(135deg, var(--md-sys-color-error) 0%, #d32f2f 100%);
    color: var(--md-sys-color-on-error);
    border-radius: 10px;
    display: none;
    border: 2px solid var(--md-sys-color-surface);
    box-shadow: 0 2px 6px rgba(176, 0, 32, 0.4);
    animation: pulse 2s infinite;
}

.mdc-chat-fab__badge:not(:empty) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 6px rgba(176, 0, 32, 0.4);
    }
    50% {
        transform: scale(1.1);
        box-shadow: 0 3px 10px rgba(176, 0, 32, 0.6);
    }
}

/* 聊天页脚上拉抽屉 */
.mdc-chat-drawer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: 0;
    max-height: 80vh; /* 桌面端最大高度80vh */
    min-height: 400px; /* 最小高度400px */
    width: 100%;
    background: linear-gradient(180deg, var(--md-sys-color-surface-container) 0%, var(--md-sys-color-surface) 100%);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15), 0 -2px 8px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    transition: height 0.35s cubic-bezier(0.4, 0, 0.2, 1), transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s, width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    transform: translateY(100%);
    pointer-events: none;
    border-top: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 16px 16px 0 0;
}

.mdc-chat-drawer--open {
    height: 80vh; /* 桌面端高度80vh */
    transform: translateY(0);
    pointer-events: auto;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.2), 0 -4px 12px rgba(0, 0, 0, 0.15);
}

/* PC端：右侧抽屉样式 */
@media (min-width: 768px) {
    .mdc-chat-drawer {
        left: auto;
        right: 0;
        top: 0;
        bottom: 0;
        width: 0;
        height: 100vh;
        max-height: 100vh;
        min-height: auto;
        max-width: 800px;
        min-width: 400px;
        border-radius: 0;
        border-top: none;
        border-bottom: none;
        border-left: 1px solid var(--md-sys-color-outline-variant);
        border-right: none; /* 右侧无边框，与屏幕边缘对齐 */
        transform: translateX(100%);
        transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1), transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s;
    }
    
    .mdc-chat-drawer--open {
        width: 580px; /* 默认宽度 */
        height: 100vh;
        transform: translateX(0);
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15), -2px 0 8px rgba(0, 0, 0, 0.1);
        border-right: none; /* 确保右侧无边框 */
    }
    
    /* 右侧边缘装饰效果（使用::before避免与header::after冲突） */
    .mdc-chat-drawer--open::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        width: 1px;
        background: linear-gradient(180deg, 
            transparent 0%, 
            var(--md-sys-color-outline-variant) 10%, 
            var(--md-sys-color-outline-variant) 90%, 
            transparent 100%);
        pointer-events: none;
        opacity: 0.3;
        z-index: 1;
    }
    
    /* 缩小状态 */
    .mdc-chat-drawer--minimized {
        width: 320px !important;
    }
    
    /* 展开状态（全宽） */
    .mdc-chat-drawer--expanded {
        width: 800px !important;
    }
}

/* 缩放按钮样式 */
.mdc-chat-drawer__resize {
    width: 36px;
    height: 36px;
    padding: 0;
    margin: 0;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    cursor: pointer;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.mdc-chat-drawer__resize::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.mdc-chat-drawer__resize:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.mdc-chat-drawer__resize:hover::before {
    width: 100%;
    height: 100%;
}

.mdc-chat-drawer__resize:active {
    transform: scale(0.95);
}

.mdc-chat-drawer__resize .material-symbols-outlined {
    position: relative;
    z-index: 1;
    font-size: 20px;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* PC端：缩小状态时，箭头图标旋转180度（右箭头变左箭头） */
@media (min-width: 768px) {
    .mdc-chat-drawer--minimized .mdc-chat-drawer__resize .material-symbols-outlined {
        transform: rotate(180deg);
    }
}

/* 移动端：缩小状态时，箭头图标旋转（右箭头转为上/下箭头） */
@media (max-width: 767px) {
    .mdc-chat-drawer__resize .material-symbols-outlined {
        transform: rotate(-90deg); /* 右箭头转为上箭头 */
    }
    
    .mdc-chat-drawer--minimized .mdc-chat-drawer__resize .material-symbols-outlined {
        transform: rotate(90deg); /* 缩小状态转为下箭头 */
    }
}

.mdc-chat-drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
    min-height: 48px;
    height: 48px;
    box-sizing: border-box;
}

/* 聊天抽屉头部操作按钮组 */
.mdc-chat-drawer__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.mdc-chat-drawer__header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--md-sys-color-outline-variant) 20%, var(--md-sys-color-outline-variant) 80%, transparent 100%);
}

.mdc-chat-drawer__title {
    margin: 0;
    padding: 0;
    font-family: var(--md-sys-typescale-title-large-font);
    font-size: var(--md-sys-typescale-title-large-size);
    font-weight: var(--md-sys-typescale-title-large-weight);
    line-height: 1.2;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.mdc-chat-drawer__title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    border-radius: 2px;
    display: block;
}

.mdc-chat-drawer__close {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    cursor: pointer;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.mdc-chat-drawer__close::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.mdc-chat-drawer__close:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.mdc-chat-drawer__close:hover::before {
    width: 100%;
    height: 100%;
}

.mdc-chat-drawer__close:active {
    transform: scale(0.95);
}

.mdc-chat-drawer__close .material-symbols-outlined {
    position: relative;
    z-index: 1;
    font-size: 20px;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}

.mdc-chat-drawer__content {
    flex: 1;
    overflow: hidden;
    position: relative;
    background-color: var(--md-sys-color-surface);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
}

.mdc-chat-drawer__content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--md-sys-color-outline-variant) 50%, transparent 100%);
    z-index: 1;
}

/* iframe样式已移除，当前使用自定义布局结构 */

/* 聊天抽屉布局样式 */
.mdc-chat-drawer__layout {
    display: flex;
    flex-direction: row;
    flex: 1;
    min-height: 0;
    width: 100%;
    overflow: hidden;
}

/* 聊天抽屉侧边栏 */
.mdc-chat-drawer__sidebar {
    display: flex;
    flex-direction: column;
    width: 64px;
    min-width: 64px;
    background-color: var(--md-sys-color-surface-container);
    border-right: 1px solid var(--md-sys-color-outline-variant);
    padding: 12px 0 8px 0;
    gap: 8px;
    flex-shrink: 0;
    position: relative;
}

/* 侧边栏顶部装饰线 */
.mdc-chat-drawer__sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--md-sys-color-outline-variant) 50%, transparent 100%);
}

.mdc-chat-drawer__sidebar-btn {
    width: 32px;
    height: 32px;
    margin: 0 auto;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    flex-shrink: 0;
    box-sizing: border-box;
}

.mdc-chat-drawer__sidebar-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--md-sys-color-primary-container);
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s, opacity 0.3s;
    z-index: 0;
}

.mdc-chat-drawer__sidebar-btn:hover {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

.mdc-chat-drawer__sidebar-btn:hover::before {
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.mdc-chat-drawer__sidebar-btn.active {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    box-shadow: 0 2px 8px rgba(var(--md-sys-color-primary-rgb, 25, 118, 210), 0.2);
}

.mdc-chat-drawer__sidebar-btn.active::before {
    display: none;
}

.mdc-chat-drawer__sidebar-btn:active {
    transform: scale(0.95);
}

.mdc-chat-drawer__sidebar-btn .material-symbols-outlined {
    font-size: 24px !important;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24 !important;
    position: relative;
    z-index: 1;
    transition: font-variation-settings 0.2s;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    line-height: 1 !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 24px !important;
    height: 24px !important;
    vertical-align: middle !important;
    text-align: center !important;
}

.mdc-chat-drawer__sidebar-btn.active .material-symbols-outlined {
    font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    line-height: 1 !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 24px !important;
    height: 24px !important;
    vertical-align: middle !important;
    text-align: center !important;
}

/* 聊天抽屉主内容区 */
.mdc-chat-drawer__main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--md-sys-color-surface);
}

/* 聊天抽屉搜索框 */
.mdc-chat-drawer__search {
    padding: 12px 16px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    flex-shrink: 0;
}

.mdc-chat-drawer__search-box {
    position: relative;
    display: flex;
    align-items: center;
    background-color: var(--md-sys-color-surface-container);
    border-radius: 24px;
    padding: 8px 16px;
    border: 1px solid var(--md-sys-color-outline-variant);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.mdc-chat-drawer__search-box:focus-within {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 2px rgba(var(--md-sys-color-primary-rgb, 25, 118, 210), 0.1);
}

.mdc-chat-drawer__search-icon {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
    margin-right: 8px;
    flex-shrink: 0;
}

.mdc-chat-drawer__search-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface);
    font-size: 14px;
    outline: none;
    padding: 0;
}

.mdc-chat-drawer__search-input::placeholder {
    color: var(--md-sys-color-on-surface-variant);
}

/* 聊天记录列表 */
.mdc-chat-drawer__chat-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.mdc-chat-drawer__chat-list-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--md-sys-color-on-surface-variant);
    gap: 16px;
}

.mdc-chat-drawer__chat-list-empty .material-symbols-outlined {
    font-size: 48px;
    opacity: 0.5;
}

.mdc-chat-drawer__chat-list-empty p {
    margin: 0;
    font-size: 14px;
}

/* 聊天抽屉底部输入区 */
.mdc-chat-drawer__footer {
    border-top: 1px solid var(--md-sys-color-outline-variant);
    background-color: var(--md-sys-color-surface-container);
    flex-shrink: 0;
    padding: 12px 16px;
    position: relative; /* 为表情面板提供定位基准 */
}

.mdc-chat-drawer__input-row {
    display: flex;
    align-items: center; /* 垂直居中所有元素 */
    gap: 4px;
    height: 36px; /* 固定行高，确保所有元素对齐 */
}

.mdc-chat-drawer__input-toolbar {
    display: flex;
    align-items: center; /* 确保工具栏按钮垂直居中 */
    gap: 4px;
    flex-shrink: 0;
    height: 36px; /* 与输入框和发送按钮高度一致 */
}

.mdc-chat-drawer__toolbar-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    position: relative; /* 确保上传按钮有定位上下文 */
}

.mdc-chat-drawer__toolbar-btn:hover {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

.mdc-chat-drawer__toolbar-btn .material-symbols-outlined {
    font-size: 20px;
}

/* 上传按钮容器样式 */
.mdc-chat-drawer__toolbar-btn--upload {
    position: relative;
    overflow: visible; /* 改为visible，让webuploader的container可见 */
}

/* 上传按钮内的picker容器样式 */
.mdc-chat-drawer__picker {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 10;
    cursor: pointer;
    pointer-events: auto;
    overflow: visible;
}

/* webuploader创建的container样式（webuploader会在picker外部创建container） */
.webuploader-container {
    position: absolute !important;
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    z-index: 11 !important;
    pointer-events: auto !important;
}

/* webuploader创建的元素样式 */
.mdc-chat-drawer__picker .webuploader-element-invisible,
.webuploader-container .webuploader-element-invisible {
    position: absolute !important;
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    cursor: pointer !important;
    z-index: 12 !important;
    pointer-events: auto !important;
    opacity: 0 !important;
}

/* 强制隐藏原生file input按钮文字 */
.mdc-chat-drawer__picker input[type="file"],
.webuploader-container input[type="file"] {
    position: absolute !important;
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    opacity: 0 !important;
    cursor: pointer !important;
    z-index: 12 !important;
    border: 0 !important;
    background: transparent !important;
    font-size: 0 !important;
    line-height: 0 !important;
}

/* webuploader创建的label和button样式 */
.mdc-chat-drawer__picker label,
.mdc-chat-drawer__picker .webuploader-pick,
.webuploader-container label,
.webuploader-container .webuploader-pick {
    position: absolute !important;
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    cursor: pointer !important;
    z-index: 5 !important; /* 降低z-index，让图标显示在上层 */
    display: block !important;
    pointer-events: auto !important;
    background: transparent !important;
    border: none !important;
    /* 完全隐藏webuploader创建的按钮文字 */
    font-size: 0 !important;
    line-height: 0 !important;
    color: transparent !important;
    text-indent: -9999px !important;
    overflow: hidden !important;
    opacity: 0 !important; /* 完全透明，只保留点击功能 */
}

/* 确保webuploader-pick内的所有内容完全隐藏 */
.mdc-chat-drawer__picker .webuploader-pick *,
.webuploader-container .webuploader-pick *,
.mdc-chat-drawer__picker label *,
.webuploader-container label * {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    font-size: 0 !important;
    line-height: 0 !important;
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
}

/* 确保图标显示在最上层且不阻止点击事件 */
.mdc-chat-drawer__toolbar-btn--upload .material-symbols-outlined {
    pointer-events: none;
    position: relative;
    z-index: 10 !important; /* 确保图标在webuploader元素之上 */
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* 确保button本身不阻止点击 */
.mdc-chat-drawer__toolbar-btn--upload {
    pointer-events: auto; /* button可以接收hover等事件 */
}

/* 但确保button的点击不会阻止子元素的点击 */
.mdc-chat-drawer__toolbar-btn--upload:active {
    pointer-events: auto;
}

.mdc-chat-drawer__input-area {
    flex: 1;
    min-height: 36px;
    max-height: 120px;
    display: flex;
    align-items: center;
}

.mdc-chat-drawer__input {
    width: 100%;
    min-height: 36px;
    max-height: 120px;
    padding: 8px 12px;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 18px;
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-size: 14px;
    font-family: inherit;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
    line-height: 20px; /* 行高，确保多行时正常显示 */
    vertical-align: middle; /* 垂直对齐 */
    /* 隐藏滚动条但保持滚动功能 */
    overflow-y: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE 和 Edge */
}

/* 隐藏 WebKit 浏览器的滚动条 */
.mdc-chat-drawer__input::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.mdc-chat-drawer__input:focus {
    border-color: var(--md-sys-color-primary);
}

.mdc-chat-drawer__send-area {
    flex-shrink: 0;
    display: flex;
    align-items: center; /* 确保发送按钮垂直居中 */
    height: 36px; /* 与输入框和工具栏高度一致 */
}

.mdc-chat-drawer__send-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    cursor: pointer;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.mdc-chat-drawer__send-btn:hover {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    transform: scale(1.05);
}

.mdc-chat-drawer__send-btn .material-symbols-outlined {
    font-size: 20px;
}

/* 聊天工具栏 - 已移除，使用简单的input-toolbar */

/* 表情面板 */
.mdc-chat-drawer__face-panel {
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    background-color: var(--md-sys-color-surface);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-bottom: 8px;
    z-index: 100;
    max-height: 300px;
    overflow-y: auto;
    display: none; /* 默认隐藏，JS通过内联样式覆盖 */
}

.mdc-chat-drawer__face-panel[style*="display: block"],
.mdc-chat-drawer__face-panel.mdc-chat-drawer__face-panel--visible {
    display: block !important; /* 当JS设置display:block时强制显示 */
}

.mdc-chat-drawer__face-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    font-size: 14px;
    font-weight: 500;
}

.mdc-chat-drawer__face-close {
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface);
    transition: background-color 0.2s, color 0.2s;
    border-radius: 4px;
}

.mdc-chat-drawer__face-close:hover {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

.mdc-chat-drawer__face-close:active {
    background-color: var(--md-sys-color-surface-container-highest);
}

.mdc-chat-drawer__face-close .material-symbols-outlined {
    font-size: 20px;
    color: inherit;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}

.mdc-chat-drawer__face-list {
    display: flex;
    flex-wrap: wrap;
    padding: 8px;
    gap: 4px;
    max-height: 250px;
    overflow-y: auto;
}

.mdc-chat-drawer__face-list img {
    width: 32px;
    height: 32px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s, transform 0.1s;
    object-fit: contain;
}

.mdc-chat-drawer__face-list img:hover {
    background-color: var(--md-sys-color-surface-container-high);
    transform: scale(1.1);
}

/* 字体设置面板 */
.mdc-chat-drawer__font-panel {
    position: absolute;
    bottom: 100%;
    left: 0;
    background-color: var(--md-sys-color-surface);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-bottom: 8px;
    z-index: 10;
    padding: 12px;
    min-width: 300px;
}

.mdc-chat-drawer__font-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: 500;
}

.mdc-chat-drawer__font-close {
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mdc-chat-drawer__font-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.mdc-chat-drawer__font-select {
    padding: 6px 12px;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 4px;
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-size: 14px;
    cursor: pointer;
}

.mdc-chat-drawer__font-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--md-sys-color-outline-variant);
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.mdc-chat-drawer__font-btn:hover,
.mdc-chat-drawer__font-btn.active {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    border-color: var(--md-sys-color-primary);
}

.mdc-chat-drawer__font-btn .material-symbols-outlined {
    font-size: 18px;
}

/* 常用回复下拉框 - 已移除，1234 responsive模板中没有 */

/* Enter键设置 - 已移除，1234 responsive模板中没有 */

/* 进度提示 - 已移除，1234 responsive模板中没有 */

/* 聊天抽屉遮罩层 */
.mdc-chat-drawer-scrim {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.25) 100%);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.35s, backdrop-filter 0.35s;
    pointer-events: none;
}

.mdc-chat-drawer-scrim--visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* 移动端适配 */
@media (max-width: 767px) {
    .mdc-chat-fab {
        top: 50% !important;
        bottom: auto !important;
        right: 0 !important;
        width: 48px !important;
        height: 48px !important;
        /* 移动端同样藏到右侧边缘，垂直居中 */
        transform: translateX(36px) translateY(-50%) !important;
        opacity: 0.5 !important;
        visibility: visible !important;
    }
    
    .mdc-chat-drawer {
        left: 0 !important;
        right: 0 !important;
        top: auto !important;
        bottom: 0 !important;
        width: 100% !important;
        height: 0 !important;
        max-height: 100vh !important; /* 移动端可以全屏 */
        min-height: 50vh !important; /* 移动端最小高度50vh */
        max-width: none !important;
        min-width: auto !important;
        border-radius: 16px 16px 0 0;
        border-left: none !important;
        border-top: 1px solid var(--md-sys-color-outline-variant) !important;
        transform: translateY(100%) !important;
    }
    
    .mdc-chat-drawer--open {
        height: 100vh !important; /* 移动端全屏显示 */
        transform: translateY(0) !important;
    }
    
    .mdc-chat-drawer--minimized {
        width: 100% !important;
        height: 50vh !important;
        transform: translateY(50vh) !important; /* 移动端缩小状态显示下半屏 */
    }
    
    .mdc-chat-drawer__header {
        padding: 2px 16px;
    }
    
    /* 移动端隐藏缩放按钮 */
    .mdc-chat-drawer__resize {
        display: none;
    }
}

/* 深色主题适配 */
[data-theme="dark"] .mdc-chat-drawer,
:root.theme-dark .mdc-chat-drawer {
    background: linear-gradient(180deg, var(--md-sys-color-surface-container) 0%, var(--md-sys-color-surface) 100%);
    border-top-color: var(--md-sys-color-outline-variant);
}

[data-theme="dark"] .mdc-chat-drawer__header,
:root.theme-dark .mdc-chat-drawer__header {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .mdc-chat-drawer__title,
:root.theme-dark .mdc-chat-drawer__title {
    color: #ffffff;
}

[data-theme="dark"] .mdc-chat-drawer__close,
:root.theme-dark .mdc-chat-drawer__close {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

[data-theme="dark"] .mdc-chat-drawer__close:hover,
:root.theme-dark .mdc-chat-drawer__close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .mdc-chat-drawer-scrim,
:root.theme-dark .mdc-chat-drawer-scrim {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%);
}
    width: 24px;
    height: 24px;
    margin: 0;
    padding: 0;
    fill: none;
    stroke: none;
    color: inherit;
}

/* 移动端搜索按钮的 SVG path */
#searchToggle .mdc-search-icon-mobile path {
    fill: currentColor;
    stroke: none;
    stroke-width: 0;
}

/* ===================================================================
 * 其他组件样式（占位，可按需继续扩展）
 * =================================================================== */

.mdc-top-app-bar__action-item {
    position: relative;
}

.mdc-menu-surface {
    position: relative;
}

/* ===================================================================
 * 用户头像按钮样式
 * =================================================================== */

.user-avatar-button {
    position: relative;
    padding: 0;
    overflow: hidden;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    vertical-align: middle;
    height: 48px !important; /* 与页头其他图标按钮高度一致 */
    width: 48px !important; /* 与页头其他图标按钮宽度一致 */
    box-sizing: border-box;
}

.user-avatar-img {
    width: 40px !important;
    height: 40px !important;
    border-radius: 50% !important;
    object-fit: cover !important;
    display: block !important;
    border: 2px solid var(--md-sys-color-outline-variant, #e0e0e0) !important;
    transition: border-color 0.2s, transform 0.2s;
    margin: 0 !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    z-index: 2 !important;
    background-color: var(--md-sys-color-surface-container, #f5f5f5) !important;
    flex-shrink: 0 !important;
}

.user-avatar-button:hover .user-avatar-img {
    border-color: var(--md-sys-color-primary, #1976d2) !important;
    transform: translate(-50%, -50%) scale(1.05) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15) !important;
}

.user-avatar-button:hover .user-avatar-fallback {
    color: var(--md-sys-color-primary, #1976d2) !important;
    transform: translate(-50%, -50%) scale(1.05) !important;
}

.user-avatar-button:focus .user-avatar-img {
    outline: 2px solid var(--md-sys-color-primary, #1976d2) !important;
    outline-offset: 2px;
}

.user-avatar-button:focus .user-avatar-fallback {
    outline: 2px solid var(--md-sys-color-primary, #1976d2) !important;
    outline-offset: 2px;
}

.user-avatar-fallback {
    width: 40px !important;
    height: 40px !important;
    font-size: 40px !important;
    line-height: 1 !important;
    color: var(--md-sys-color-on-surface-variant, #666) !important;
    display: none !important; /* 默认隐藏，只有在头像图片不存在或加载失败时显示 */
    align-items: center !important;
    justify-content: center !important;
    flex-shrink: 0 !important;
    background-color: transparent !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    z-index: 1 !important;
}

/* 深色主题下的头像边框 */
.theme-dark .user-avatar-button:hover .user-avatar-img {
    border-color: var(--md-sys-color-primary, #90caf9);
}.theme-dark .user-avatar-fallback {
    color: var(--md-sys-color-on-surface-variant, #aaa);
}/* 头像按钮在所有设备都可用，不再隐藏 */
/* 已移除隐藏断点，让头像按钮在所有设备都显示 */