/* ========================================================================== */
/* 面板布局与可见性 (Panel Layout & Visibility) */
/* ========================================================================== */

.details-panel {
    display: flex;
    flex-direction: column;
    width: var(--details-panel-width);
    min-width: var(--details-panel-width);
    flex-shrink: 0;
    background-color: var(--panel-bg-color);
    border-inline-start: var(--border-width-standard) solid var(--border-color);
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    z-index: var(--z-index-details-panel);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--transition-duration-slow) cubic-bezier(0.215, 0.610, 0.355, 1) 0s, visibility 0s linear var(--transition-duration-slow);
}

.app-container.show-details .details-panel {
    transform: translateX(0);
    visibility: visible;
    transition: transform var(--transition-duration-slow) cubic-bezier(0.215, 0.610, 0.355, 1) 0s, visibility 0s linear 0s;
}

.details-header {
    justify-content: space-between;
}

.details-content {
    flex-grow: 1;
    padding: var(--spacing-4);
    overflow-y: auto;
}

.details-section {
    margin-bottom: var(--spacing-6);
    padding-inline: 5px;
}

.details-section h4 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--spacing-2);
    margin-bottom: var(--spacing-3);
    border-bottom: var(--border-width-standard) solid var(--border-color);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    transition: color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out;
}

/* ========================================================================== */
/* 联系人信息区域 (Contact Info Section) */
/* ========================================================================== */

.details-avatar {
    width: var(--avatar-size-xl);
    height: var(--avatar-size-xl);
    margin: 10px auto 15px;
    box-shadow: var(--box-shadow-md);
    font-size: 36px;
}

#detailsName {
    margin-bottom: 5px;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    color: var(--text-primary);
    transition: color var(--transition-duration-slow) ease-out;
}

#detailsId,
#detailsStatus {
    margin-bottom: 2px;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-align: center;
}

#detailsStatus {
    margin-bottom: 15px;
}

/* ========================================================================== */
/* AI 角色相关区域 (AI Character Sections) */
/* ========================================================================== */

#aiContactAboutSection h4 {
    color: var(--text-secondary);
}

#aiContactDetailsContent ul {
    list-style-position: inside;
    padding-left: 0;
    margin-bottom: var(--spacing-3);
}

#aiContactDetailsContent ul li {
    margin-bottom: var(--spacing-1);
}

#aiContactDetailsContent p {
    margin-bottom: var(--spacing-2);
    line-height: 1.5;
}

#aiChapterSection .settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-3);
    margin-bottom: 0;
}

#aiChapterSection .settings-item label {
    flex-shrink: 0;
    width: 80px;
    text-align: end;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
}

#aiChapterSection .settings-item #aiChapterSelectContainer {
    flex-grow: 1;
}

/* ========================================================================== */
/* 可搜索下拉选择器 (Searchable Select Component) */
/* ========================================================================== */

.details-searchable-select,
.searchable-select-tts {
    position: relative;
    flex-grow: 1;
}

.details-searchable-select-input,
.searchable-select-input-tts {
    width: 100%;
    padding: 7px 10px;
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--surface-2-bg);
    font-family: var(--font-family-base), var(--font-family-serif);
    font-size: 0.9em;
    color: var(--text-primary);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%23757575" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-position: right var(--spacing-2) center;
    background-repeat: no-repeat;
    padding-right: calc(var(--spacing-2) + 20px + 5px);
    transition: border-color var(--transition-duration-normal) ease-out, box-shadow var(--transition-duration-normal) ease-out, background-image var(--transition-duration-normal) ease-out;
}

.details-searchable-select-input:focus,
.searchable-select-input-tts:focus {
    outline: none;
    border-color: var(--brand-bg);
    box-shadow: 0 0 0 var(--border-width-focus) rgba(var(--brand-rgb), 0.2);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%230088CC" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 15 12 9 18 15"></polyline></svg>');
}

.details-searchable-select-input:disabled,
.searchable-select-input-tts:disabled {
    background-color: var(--surface-hover-bg);
    opacity: 0.7;
    cursor: not-allowed;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%23AAAAAA" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
}

.details-searchable-select-options-container,
.searchable-select-options-container-tts {
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    right: 0;
    z-index: 1050;
    max-height: 150px;
    overflow-y: auto;
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--surface-2-bg);
    box-shadow: 0 2px 5px rgba(var(--black-rgb), 0.1);
}

.details-searchable-select-option,
.searchable-select-option-tts {
    padding: 8px 10px;
    cursor: pointer;
    font-size: 0.9em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
    transition: background-color var(--transition-duration-fast) ease-out, color var(--transition-duration-fast) ease-out;
}

.details-searchable-select-option:hover,
.details-searchable-select-option.highlighted,
.searchable-select-option-tts:hover {
    background-color: var(--surface-hover-bg);
    color: var(--brand-bg);
}

.details-searchable-select-option.no-results,
.searchable-select-option-tts.no-results {
    color: var(--text-secondary);
    cursor: default;
    font-style: italic;
}

/* ========================================================================== */
/* TTS 配置区域 (TTS Config Section) */
/* ========================================================================== */

#ttsConfigFormContainer .tts-config-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-3);
}

#ttsConfigFormContainer .tts-config-item label {
    flex-shrink: 0;
    width: 85px;
    margin-inline-end: 10px;
    color: var(--text-primary);
    font-size: 0.88em;
    font-weight: var(--font-weight-medium);
    text-align: end;
}

#ttsConfigFormContainer .tts-config-item input:not([type="checkbox"]),
#ttsConfigFormContainer .tts-config-item select {
    flex-grow: 1;
    min-width: 50px;
    padding: 7px 10px;
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--surface-2-bg);
    color: var(--text-primary); /* --- FIX: 新增 --- */
    font-family: var(--font-family-base), var(--font-family-serif);
    font-size: 0.9em;
    transition: border-color var(--transition-duration-normal) ease-out, box-shadow var(--transition-duration-normal) ease-out;
}

#ttsConfigFormContainer .tts-config-item input:not([type="checkbox"]):focus,
#ttsConfigFormContainer .tts-config-item select:focus {
    outline: none;
    border-color: var(--brand-bg);
    box-shadow: 0 0 0 var(--border-width-focus) rgba(var(--brand-rgb), 0.2);
}

#ttsConfigFormContainer .tts-config-item select {
    appearance: none;
    -webkit-appearance: none;
    padding-inline-end: 30px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%23757575" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-position: right 8px center;
    background-repeat: no-repeat;
    cursor: pointer;
}

#ttsConfigFormContainer .tts-config-item select:disabled {
    background-color: var(--surface-hover-bg);
    opacity: 0.7;
    cursor: not-allowed;
}

#ttsConfigFormContainer .tts-config-item input[type="checkbox"] {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-inline-end: auto;
    accent-color: var(--brand-bg);
    cursor: pointer;
}

.tts-attribution-section .attribution-sub-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 6px;
    margin-top: 15px;
    margin-bottom: 0;
    border-bottom: var(--border-width-standard) dashed var(--border-color);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    transition: color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out;
}

.tts-attribution-section .attribution-sub-header.active {
    border-bottom-style: solid;
    border-bottom-color: var(--brand-bg);
    color: var(--brand-bg);
}

.tts-attribution-section .attribution-sub-content {
    padding-inline-start: var(--spacing-3);
    margin-top: var(--spacing-2);
    font-size: 0.85em;
    overflow: hidden;
}

.tts-attribution-section a {
    color: var(--brand-bg);
    text-decoration: none;
    transition: text-decoration var(--transition-duration-normal) ease-out;
}

.tts-attribution-section a:hover {
    text-decoration: underline;
}

/* ========================================================================== */
/* 群组管理 (Group Management) */
/* ========================================================================== */


#detailsGroupManagement #addGroupMemberArea h5 {
    margin-bottom: var(--spacing-2);
    font-size: 1.1em;
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.member-item-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
    border-bottom: var(--border-width-standard) solid var(--border-color);
}

.member-item-detail:last-child {
    border-bottom: none;
}

.member-item-detail .member-name {
    flex-grow: 1;
    margin-right: var(--spacing-2);
}

.member-item-detail .member-status {
    font-size: 0.85em;
    color: var(--text-secondary);
    margin-right: var(--spacing-2);
    white-space: nowrap;
    transition: color var(--transition-duration-slow) ease-out;
}

.member-item-detail .member-status.connected {
    color: var(--success-bg);
}

.member-item-detail .member-status.online-not-connected {
    color: var(--warning-bg);
}

.member-item-detail .member-status.offline {
    color: #aaa;
}

.member-item-detail .member-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.member-item-detail .remove-member-btn-detail,
.member-item-detail .reconnect-member-btn-detail {
    padding: 2px 6px;
    font-size: 0.8em;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    border: var(--border-width-standard) solid transparent;
    transition: background-color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out, color var(--transition-duration-normal) ease-out;
}

.member-item-detail .remove-member-btn-detail {
    background-color: rgba(var(--accent-danger-rgb), 0.1);
    color: var(--danger-bg);
}

.member-item-detail .remove-member-btn-detail:hover {
    background-color: rgba(var(--accent-danger-rgb), 0.2);
    border-color: var(--danger-bg);
}

.member-item-detail .reconnect-member-btn-detail {
    background-color: rgba(var(--brand-rgb), 0.1);
    color: var(--brand-bg);
}

.member-item-detail .reconnect-member-btn-detail:hover {
    background-color: rgba(var(--brand-rgb), 0.2);
    border-color: var(--brand-bg);
}

.ai-prompt-editor-item {
    padding: var(--spacing-3);
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--panel-bg-color);
}

.ai-prompt-editor-item h5 {
    margin-top: 0;
    margin-bottom: var(--spacing-2);
    font-size: 1.05em;
    font-weight: var(--font-weight-medium);
}

.ai-prompt-editor-item textarea {
    width: 100%;
    min-height: 60px;
    padding: var(--spacing-2);
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-base);
    font-size: 0.9em;
    resize: vertical;
    margin-bottom: var(--spacing-2);
    background-color: var(--input-bg-color); /* --- FIX: 新增 --- */
    color: var(--text-primary); /* --- FIX: 新增 --- */
    transition: border-color var(--transition-duration-normal) ease-out, box-shadow var(--transition-duration-normal) ease-out;
}

.ai-prompt-editor-item textarea:focus {
    outline: none;
    border-color: var(--brand-bg);
    box-shadow: 0 0 0 var(--border-width-focus) rgba(var(--brand-rgb), 0.2);
}

.ai-prompt-editor-item .btn-sm {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: 0.85em;
}

.ai-prompt-editor-item > div:last-child {
    display: flex;
    gap: 10px;
}

#detailsGroupManagement #contactsDropdownDetails {
    width: calc(100% - 90px); /* 减去按钮宽度和间距 */
    margin-right: 10px;
    padding: 7px 10px;
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--surface-2-bg);
    color: var(--text-primary); /* --- FIX: 新增 --- */
    font-family: var(--font-family-base), var(--font-family-serif);
    font-size: 0.9em;
    transition: border-color var(--transition-duration-normal) ease-out, box-shadow var(--transition-duration-normal) ease-out;

    /* 关键：应用自定义外观和箭头 */
    appearance: none;
    -webkit-appearance: none;
    padding-inline-end: 30px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%23757575" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-position: right 8px center;
    background-repeat: no-repeat;
    cursor: pointer;
}

#detailsGroupManagement #contactsDropdownDetails:focus {
    outline: none;
    border-color: var(--brand-bg);
    box-shadow: 0 0 0 var(--border-width-focus) rgba(var(--brand-rgb), 0.2);
}

#detailsGroupManagement #addGroupMemberArea {
    /* 微调一下布局，让下拉框和按钮对齐 */
    display: flex;
    align-items: center;
}

/* ========================================================================== */
/* 聊天资源预览 (Chat Resource Preview) */
/* ========================================================================== */

.resource-search-container {
    margin-bottom: var(--spacing-3);
    order: -1;
}

#resourceSearchInputDetailsPanel {
    width: 100%;
}

#resourceSearchInputDetailsPanel:focus {
    outline: none;
    border-color: var(--brand-bg);
    box-shadow: 0 0 0 var(--border-width-focus) rgba(var(--brand-rgb), 0.2);
}

.resource-category-tabs {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-2) var(--spacing-1);
    border-bottom: var(--border-width-standard) solid var(--border-color);
    flex-shrink: 0;
    background-color: var(--panel-bg-color);
}

.resource-category-tab {
    padding: var(--spacing-2) var(--spacing-3);
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out;
}

.resource-category-tab:hover {
    color: var(--brand-bg);
}

.resource-category-tab.active {
    color: var(--brand-bg);
    border-bottom-color: var(--brand-bg);
}

.resource-grid-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 5px;
    padding: var(--spacing-2);
    overflow-y: auto;
    flex-grow: 1;
    position: relative;
}

.resource-preview-item {
    position: relative;
    aspect-ratio: 1 / 1;
    background-color: var(--surface-hover-bg);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    border: var(--border-width-standard) solid var(--border-color);
    transition: box-shadow var(--transition-duration-normal) ease-out, transform var(--transition-duration-normal) ease-out;
}

.resource-preview-item:hover {
    box-shadow: 0 2px 5px rgba(var(--black-rgb), 0.1);
    transform: translateY(-2px);
}

.resource-preview-item .thumbnail-placeholder-resource {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2em;
    color: var(--text-secondary);
    background-color: var(--surface-active-bg);
    position: relative;
}

.resource-preview-item .message-thumbnail-resource {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.resource-preview-item .file-icon-resource {
    font-size: 2em;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-1);
}

.resource-preview-item .resource-name {
    font-size: 0.8em;
    color: var(--text-primary);
    padding: 0 var(--spacing-1);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 90%;
}

.resource-preview-item .resource-timestamp {
    font-size: 0.7em;
    color: var(--text-on-brand);
    position: absolute;
    bottom: 2px;
    right: 4px;
    background-color: rgba(var(--black-rgb), 0.3);
    padding: 1px 3px;
    border-radius: 2px;
}

.resource-preview-item.text-message-preview {
    display: flex;
    flex-direction: column;
    justify-content: start;
    align-items: flex-start;
    padding: var(--spacing-2);
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--surface-2-bg);
    cursor: pointer;
    margin-bottom: var(--spacing-1);
    height: auto;
    aspect-ratio: unset;
}

.resource-preview-item.text-message-preview:hover {
    background-color: var(--surface-hover-bg);
}

.resource-text-sender-preview {
    font-size: 0.8em;
    font-weight: var(--font-weight-bold);
    color: var(--brand-bg);
    margin-bottom: 3px;
}

.resource-text-content-preview {
    font-size: 0.9em;
    color: var(--text-primary);
    word-break: break-word;
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.resource-preview-item.text-message-preview .resource-timestamp {
    position: static;
    align-self: flex-end;
    margin-top: var(--spacing-1);
    background-color: transparent;
    color: var(--text-secondary);
    padding: 0;
}

.loading-indicator-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-3);
    width: 100%;
    flex-shrink: 0;
}

.loading-indicator-grid .spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: var(--border-width-thick) solid var(--surface-hover-bg);
    border-top-color: var(--brand-bg);
    border-radius: var(--border-radius-circle);
    animation: spin 1s linear infinite;
}

.resource-grid-empty-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-4);
    color: var(--text-secondary);
}

/* ========================================================================== */
/* 日历视图 (Calendar View) */
/* ========================================================================== */

.calendar-container-rps {
    padding: var(--spacing-3);
    background-color: var(--surface-2-bg);
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-2);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.calendar-loading, .calendar-error {
    text-align: center;
    padding: var(--spacing-4);
    color: var(--text-secondary);
}

.calendar-header-rps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-3);
    width: 100%;
    max-width: 300px;
}

.calendar-nav-btn-rps {
    background: none;
    border: none;
    font-size: 1.5em;
    color: var(--brand-bg);
    cursor: pointer;
    padding: 0 var(--spacing-2);
    transition: color var(--transition-duration-normal) ease-out;
}

.calendar-nav-btn-rps:hover {
    color: var(--brand-bg-dark);
}

.calendar-monthyear-rps {
    font-weight: var(--font-weight-semibold);
    font-size: 1.1em;
}

.calendar-grid-rps {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    width: 100%;
    max-width: 300px;
}

.calendar-day-header-rps, .calendar-day-rps {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-1);
    text-align: center;
    font-size: 0.85em;
    border-radius: var(--border-radius-sm);
}

.calendar-day-header-rps {
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
}

.calendar-day-rps {
    height: 30px;
    border: var(--border-width-standard) solid transparent;
    transition: background-color var(--transition-duration-normal) ease-out, color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out;
}

.calendar-day-rps.empty {
    visibility: hidden;
}

.calendar-day-rps.has-messages-rps {
    background: var(--sent-bg-color);
    color: var(--text-on-sent);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    border: var(--border-width-standard) solid var(--success-bg);
}

.calendar-day-rps.has-messages-rps:hover {
    background-color: var(--brand-bg);
    color: var(--text-on-brand);
}

.calendar-day-rps.no-messages-rps {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* ========================================================================== */
/* 人员大厅 (People Lobby) */
/* ========================================================================== */

.lobby-content {
    display: none;
    flex-direction: column;
    flex-grow: 1;
    overflow: hidden;
}

.lobby-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    border-bottom: var(--border-width-standard) solid var(--border-color);
    flex-shrink: 0;
}

.lobby-header h4 {
    margin: 0;
    font-size: 1em;
}

.lobby-header #peopleLobbyRefreshBtn {
    font-size: 1.1em;
}

#newContactGroupModal .modal-body p {
    font-size: 0.85em;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2);
}

/* ========================================================================== */
/* 记忆书 (Memory Book) */
/* ========================================================================== */

#memoryBookList {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.memory-set-item {
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--surface-2-bg);
    box-shadow: var(--box-shadow-sm);
    transition: box-shadow var(--transition-duration-normal) ease-in-out;
}

.memory-set-item:hover {
    box-shadow: 0 2px 4px rgba(var(--black-rgb), 0.06);
}

.memory-set-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    background-color: var(--surface-hover-bg);
    font-weight: var(--font-weight-medium);
    border-bottom: var(--border-width-standard) solid var(--border-color);
}

.memory-set-actions {
    display: flex;
    gap: var(--spacing-2);
}

.memory-set-actions .record-btn,
.memory-set-actions .delete-set-btn {
    padding: 3px 8px;
    font-size: 0.85em;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    border: var(--border-width-standard) solid transparent;
    transition: background-color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out, color var(--transition-duration-normal) ease-out;
}

.memory-set-actions .record-btn {
    background-color: rgba(var(--brand-rgb), 0.1);
    color: var(--brand-bg);
}

.memory-set-actions .record-btn:hover:not(:disabled) {
    background-color: rgba(var(--brand-rgb), 0.2);
    border-color: var(--brand-bg);
}

.memory-set-actions .record-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.memory-set-actions .delete-set-btn,
.memory-set-actions .edit-set-btn {
    padding: 3px 8px;
    font-size: 0.85em;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    border: var(--border-width-standard) solid transparent;
    transition: background-color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out, color var(--transition-duration-normal) ease-out;
}

.memory-set-actions .delete-set-btn {
    background-color: rgba(var(--accent-danger-rgb), 0.1);
    color: var(--danger-bg);
}

.memory-set-actions .delete-set-btn:hover {
    background-color: rgba(var(--accent-danger-rgb), 0.2);
    border-color: var(--danger-bg);
}

.memory-set-actions .edit-set-btn {
    background-color: rgba(var(--accent-warning-rgb), 0.1);
    color: var(--warning-bg);
}

.memory-set-actions .edit-set-btn:hover {
    background-color: rgba(var(--accent-warning-rgb), 0.2);
    border-color: var(--warning-bg);
}

.memory-book-container {
    padding: var(--spacing-3);
}

.memory-book-textarea {
    width: 100%;
    padding: var(--spacing-2);
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-base), var(--font-family-serif);
    font-size: 0.9em;
    resize: vertical;
    margin-bottom: var(--spacing-2);
    background-color: var(--surface-2-bg);
    color: var(--text-primary);
    transition: border-color var(--transition-duration-normal) ease-in-out, box-shadow var(--transition-duration-normal) ease-in-out;
}

.memory-book-textarea:focus {
    outline: none;
    border-color: var(--brand-bg);
    box-shadow: 0 0 0 var(--border-width-focus) rgba(var(--brand-rgb), 0.2);
}

.memory-book-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.memory-book-controls label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9em;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color var(--transition-duration-normal) ease-out;
}

.memory-book-controls label:hover {
    color: var(--text-primary);
}

.memory-book-controls .enable-memory-book-toggle {
    accent-color: var(--brand-bg);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.memory-book-controls .save-memory-book-btn {
    padding: 4px 10px;
    font-size: 0.85em;
    background-color: var(--surface-hover-bg);
    border: var(--border-width-standard) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: background-color var(--transition-duration-normal) ease-out, border-color var(--transition-duration-normal) ease-out;
}

.memory-book-controls .save-memory-book-btn:hover {
    background-color: var(--surface-active-bg);
    border-color: #bbb;
}

/* ========================================================================== */
/* 状态与可见性修饰符 (State & Visibility Modifiers) */
/* ========================================================================== */

.details-panel.character-active .details-avatar {
    background-color: var(--character-avatar-bg);
    color: var(--character-avatar-text-color);
}

.details-panel.character-active #detailsName,
.details-panel.character-active #aiContactAboutSection h4 span {
    color: var(--character-details-name-color);
}

#callingModalAvatar.character-active {
    background-color: var(--character-avatar-bg);
    color: var(--character-avatar-text-color);
}

#aiContactAboutSection, #aiChapterSection, #aiTtsConfigSection, #detailsGroupManagement, #groupAiPromptsSection, #currentChatActionsDetails, #groupActionsDetails, #contactActionsDetails, #resourcePreviewSection, #peopleLobbyContent, #addGroupMemberArea, #leftMembersArea, #calendarContainerDetailsPanel, #resourceGridLoadingIndicator, #memoryBookSection {
    display: none;
}

#saveAiTtsSettingsBtnDetails {
    margin-top: 15px;
    width: 100%;
}

#resourcePreviewPanelContent {
    display: flex;
    flex-direction: column;
    height: auto;
    overflow: hidden;
    padding-top: 10px;
    margin-top: 10px;
}

#resourceGridContainer {
    display: grid;
}