/* ===== 主屏幕样式 ===== */
.home-screen {
    background: #ffffff;
}

.home-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: var(--spacing-lg);
    padding-top: calc(var(--safe-top) + 48px);
    padding-bottom: calc(var(--safe-bottom) + var(--spacing-lg));
}

/* 头像：居中 */
.home-avatar {
    width: 82px;
    height: 82px;
    border-radius: var(--border-radius-full);
    background: #f0f0f5;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-spring);
    overflow: hidden;
    border: 2.5px solid #e0e0e8;
    box-shadow: 0 2px 14px rgba(0,0,0,0.09);
    margin-bottom: 10px;
}

.home-avatar:active {
    transform: scale(0.95);
}

.home-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.home-avatar-placeholder {
    color: #aaaabc;
}

.home-avatar-placeholder svg {
    width: 36px;
    height: 36px;
}

.home-title {
    color: #1a1a2e;
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    padding: 3px 14px;
    border-radius: var(--border-radius-md);
    transition: background var(--transition-fast);
    letter-spacing: 0.5px;
}

.home-title:hover,
.home-title:active {
    background: rgba(0, 0, 0, 0.05);
}

.home-signature {
    color: #888899;
    font-size: var(--font-size-xs);
    text-align: center;
    cursor: pointer;
    padding: 3px 10px;
    border-radius: var(--border-radius-full);
    transition: background var(--transition-fast);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 28px;
}

.home-signature:hover,
.home-signature:active {
    background: rgba(0, 0, 0, 0.04);
}

/* 下方行：图标网格（左） + 相框（右） */
.home-bottom-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 32px;
    width: 100%;
    padding: 0 8px;
}

/* 2×2 图标网格 */
.home-icon-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    flex-shrink: 0;
}

.home-icon-btn {
    width: 66px;
    height: 66px;
    border-radius: 16px;
    background: #f5f5f7;
    border: 1.5px solid #e0e0e6;
    color: #1a1a2e;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 1px 4px rgba(0,0,0,0.07);
    padding: 0;
}

.home-icon-btn svg {
    width: 24px;
    height: 24px;
    stroke-width: 1.8;
    flex-shrink: 0;
}

.home-icon-btn span {
    font-size: 10px;
    color: #555566;
    letter-spacing: 0.2px;
    font-weight: 500;
}

.home-icon-btn:hover {
    background: #ececf0;
    transform: scale(1.05);
    box-shadow: 0 3px 10px rgba(0,0,0,0.10);
}

.home-icon-btn:active {
    transform: scale(0.93);
    background: #e2e2e8;
}

/* 相框 */
.home-frame {
    width: 110px;
    height: 140px;
    border-radius: 12px;
    border: 2px solid #c8c8d4;
    background: #fafafa;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    transition: all var(--transition-fast);
    box-shadow:
        0 0 0 4px #ffffff,
        0 0 0 5.5px #d0d0dc,
        0 4px 16px rgba(0,0,0,0.10);
    position: relative;
    flex-shrink: 0;
}

.home-frame:hover {
    border-color: #a0a0b8;
    box-shadow:
        0 0 0 4px #ffffff,
        0 0 0 5.5px #b0b0c8,
        0 6px 20px rgba(0,0,0,0.14);
    transform: scale(1.03);
}

.home-frame:active {
    transform: scale(0.97);
}

.home-frame-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.home-frame-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: #c0c0cc;
}

.home-frame-placeholder svg {
    width: 26px;
    height: 26px;
    stroke-width: 1.5;
}

.home-frame-placeholder span {
    font-size: 10px;
    color: #c0c0cc;
    letter-spacing: 0.3px;
}

/* ===== 聊天列表屏幕样式 ===== */
.chat-list-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.chat-list-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.chat-list-empty-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.chat-list-fab {
    position: absolute;
    bottom: calc(var(--spacing-lg) + var(--safe-bottom));
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    background: #1a1a1a;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
    cursor: pointer;
    transition: transform var(--transition-spring);
}

.chat-list-fab:active {
    transform: scale(0.9);
}

/* ===== 设置屏幕样式 ===== */
.settings-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-md);
}

.settings-section {
    margin-bottom: var(--spacing-lg);
}

.settings-section-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
}

.settings-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

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

.settings-item-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.settings-item-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.settings-item-content {
    flex: 1;
}

.settings-item-title {
    font-size: var(--font-size-md);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.settings-item-subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

/* 可点击的设置项 */
.settings-item-clickable {
    cursor: pointer;
    transition: background var(--transition-fast);
}

.settings-item-clickable:active {
    background: var(--bg-primary);
}

.settings-item-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--text-light);
}

.settings-item-arrow svg {
    width: 20px;
    height: 20px;
}

.settings-footer {
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--spacing-lg) + var(--safe-bottom));
}

.settings-footer-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* 预设列表 */
.preset-list {
    max-height: 200px;
    overflow-y: auto;
}

.preset-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.preset-item:hover,
.preset-item.active {
    background: var(--bg-primary);
}

.preset-item-name {
    font-size: var(--font-size-sm);
}

.preset-item-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===== 美化屏幕样式 ===== */
.customize-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-md);
}

.customize-section {
    margin-bottom: var(--spacing-lg);
}

.customize-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.customize-section-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
}

.customize-preview {
    background: var(--bg-chat);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.customize-code-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 200px;
    overflow-y: auto;
}

.customize-icon-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.customize-icon-item {
    aspect-ratio: 1;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.customize-icon-item:active,
.customize-icon-item.active {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.customize-icon-item img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.customize-icon-item span {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

/* 壁纸预览 */
.wallpaper-preview {
    width: 100%;
    height: 120px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wallpaper-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wallpaper-placeholder {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

/* ===== 收藏屏幕样式 ===== */
.favorites-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-md);
}

.favorites-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.favorite-item {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.favorite-item:active {
    transform: scale(0.98);
    background: var(--bg-primary);
}

.favorite-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.favorite-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-full);
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--text-secondary);
}

.favorite-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.favorite-avatar svg {
    width: 18px;
    height: 18px;
}

.favorite-info {
    flex: 1;
}

.favorite-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.favorite-time {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.favorite-delete-btn {
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
}

.favorite-delete-btn:hover {
    color: var(--danger-color);
}

.favorite-content {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    line-height: 1.5;
    word-break: break-word;
    white-space: pre-wrap;
}

/* 空状态 */
.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    min-height: 300px;
}

.empty-icon {
    width: 64px;
    height: 64px;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-icon svg {
    width: 100%;
    height: 100%;
}

.empty-text {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.empty-hint {
    font-size: var(--font-size-sm);
    color: var(--text-light);
}