/* ===== 全局重置 ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #f0f2f5;
    color: #1a1a2e;
}

/* ===== 主布局 ===== */
.app-wrapper {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ===== 左侧编辑面板 ===== */
.editor-panel {
    width: 380px;
    min-width: 340px;
    background: #fff;
    border-right: 1px solid #e8eaed;
    overflow-y: auto;
    padding: 0 0 24px;
    flex-shrink: 0;
}

.editor-header {
    background: linear-gradient(135deg, #0068ff 0%, #0050cc 100%);
    padding: 20px 20px 16px;
    color: white;
}

.editor-header h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.editor-header p {
    font-size: 12px;
    opacity: 0.8;
}

.section-card {
    margin: 12px 16px 0;
    background: #fff;
    border: 1px solid #e8eaed;
    border-radius: 10px;
    padding: 14px;
}

.section-title {
    font-size: 13px;
    font-weight: 700;
    color: #0068ff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e8f0fe;
}

/* ===== 表单元素 ===== */
.form-group {
    margin-bottom: 12px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #666;
    margin-bottom: 5px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="datetime-local"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #dde1e7;
    border-radius: 7px;
    font-size: 13px;
    color: #1a1a2e;
    background: #fafbfc;
    transition: border-color 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: #0068ff;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(0,104,255,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 70px;
}

/* ===== 单选按钮 ===== */
.radio-group {
    display: flex;
    gap: 16px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #444;
    cursor: pointer;
}

.radio-label input[type="radio"] {
    accent-color: #0068ff;
    width: 16px;
    height: 16px;
}

/* ===== 头像上传 ===== */
.avatar-upload-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar-preview {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0068ff, #0050cc);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
    overflow: hidden;
}

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

.upload-controls {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.btn-upload {
    padding: 6px 12px;
    background: #f0f2f5;
    border: 1px solid #dde1e7;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    color: #444;
    transition: all 0.2s;
}

.btn-upload:hover {
    background: #e8f0fe;
    border-color: #0068ff;
    color: #0068ff;
}

/* ===== 按钮 ===== */
.btn-primary {
    width: 100%;
    padding: 10px;
    background: #0068ff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 4px;
}

.btn-primary:hover {
    background: #0050cc;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,104,255,0.3);
}

.btn-secondary {
    padding: 8px 14px;
    background: #f0f2f5;
    color: #444;
    border: 1px solid #dde1e7;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background: #e8f0fe;
    border-color: #0068ff;
    color: #0068ff;
}

.btn-danger {
    padding: 8px 14px;
    background: #fff0f0;
    color: #e53e3e;
    border: 1px solid #fca5a5;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-danger:hover {
    background: #fee2e2;
}

.btn-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ===== 消息列表 ===== */
.msg-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 200px;
    overflow-y: auto;
}

.msg-item {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    background: #fafbfc;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    gap: 8px;
    font-size: 12px;
}

.msg-item-sender {
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}

.msg-item-sender.me {
    background: #dbeafe;
    color: #1d4ed8;
}

.msg-item-sender.other {
    background: #f0fdf4;
    color: #15803d;
}

.msg-item-content {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #444;
}

.msg-item-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.btn-icon {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.2s;
}

.btn-icon.edit {
    background: #e8f0fe;
    color: #0068ff;
}

.btn-icon.delete {
    background: #fee2e2;
    color: #dc2626;
}

.btn-icon:hover {
    transform: scale(1.1);
}

/* ===== 右侧预览 ===== */
.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #e8eaed;
    overflow: hidden;
}

.preview-header {
    padding: 12px 20px;
    background: #fff;
    border-bottom: 1px solid #e8eaed;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 600;
    color: #444;
}

.preview-actions {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 5px 12px;
    background: #f0f2f5;
    border: 1px solid #dde1e7;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    color: #444;
    transition: all 0.2s;
}

.btn-sm:hover {
    background: #e8f0fe;
    border-color: #0068ff;
    color: #0068ff;
}

.phone-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding: 20px;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 5px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #c5c9d6;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #0068ff;
}

/* ===== Toast 通知 ===== */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 18px;
    background: #1a1a2e;
    color: white;
    border-radius: 8px;
    font-size: 13px;
    z-index: 9999;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success { background: #059669; }
.toast.error { background: #dc2626; }
.toast.info { background: #0068ff; }