/* 全局变量定义（参考目标站点设计） */
:root {
    --primary-color: #409EFF;
    --primary-hover: #66b1ff;
    --success-color: #67C23A;
    --warning-color: #E6A23C;
    --danger-color: #F56C6C;
    --bg-color: #F0F2F5;
    --card-bg: #FFFFFF;
    --text-main: #303133;
    --text-regular: #606266;
    --text-secondary: #909399;
    --border-color: #e4e7ed;
    --border-radius-base: 8px;
    --shadow-base: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.12);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* ================== 通用组件 ================== */

/* 卡片 */
.sv-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-base);
    padding: 24px;
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.sv-card:hover {
    box-shadow: var(--shadow-hover);
}

.sv-card-header {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

/* 按钮 */
.sv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
    border: 1px solid transparent;
    outline: none;
    line-height: 1;
}

.sv-btn:active {
    transform: scale(0.98);
}

.sv-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.sv-btn-primary {
    color: white;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.sv-btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.sv-btn-success { background-color: var(--success-color); color: white;}
.sv-btn-success:hover { filter: brightness(1.1); }

.sv-btn-danger { background-color: var(--danger-color); color: white;}
.sv-btn-danger:hover { filter: brightness(1.1); }

/* 表单输入 */
.sv-input {
    width: 100%;
    position: relative;
    margin-bottom: 16px;
}

.sv-input__inner {
    width: 100%;
    padding: 10px 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-main);
    transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
}

.sv-input__inner:focus {
    outline: none;
    border-color: var(--primary-color);
}

textarea.sv-input__inner {
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
}

/* 消息提示框 (Toast) */
.sv-toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sv-message {
    padding: 12px 20px;
    border-radius: 8px;
    background: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    font-size: 14px;
    animation: dropDown 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sv-message.error {
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}
.sv-message.success {
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

@keyframes dropDown {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 数据表格 */
.sv-table-container {
    width: 100%;
    overflow-x: auto;
}
.sv-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.sv-table th, .sv-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}
.sv-table th {
    background-color: #f5f7fa;
    color: var(--text-regular);
    font-weight: 500;
}
.sv-table tr:hover {
    background-color: #fdfdfd;
}

/* 状态标签 */
.sv-tag {
    display: inline-block;
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 4px;
    line-height: 1;
}
.sv-tag-offline { background: #fee2e2; color: #dc2626; border: 1px solid #fca5a5;}
.sv-tag-soldout { background: #ffedd5; color: #ea580c; border: 1px solid #fdba74;}
.sv-tag-restocked { background: #dcfce7; color: #16a34a; border: 1px solid #86efac;}
.sv-tag-new { background: #e0f2fe; color: #0284c7; border: 1px solid #7dd3fc;}