/* ===== 全局基础样式 ===== */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #111827;
    color: #f9fafb;
}

/* ===== 容器 ===== */
.app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ===== 标题 ===== */
header h1 {
    margin: 0 0 20px 0;
    font-size: 26px;
}

/* ===== 布局 ===== */
.panel {
    display: flex;
    gap: 20px;
}

/* 左右区域 */
.left, .right {
    flex: 1;
    background: #1f2937;
    border-radius: 12px;
    padding: 16px;
}

/* 小标题 */
h2 {
    margin-top: 0;
    margin-bottom: 10px;
}

/* 按钮行 */
.buttons-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

/* 按钮样式 */
button {
    padding: 8px 12px;
    border-radius: 8px;
    border: none;
    background: #3b82f6;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    background: #2563eb;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 上传区 */
.upload-box {
    margin-bottom: 12px;
    padding: 10px;
    border-radius: 8px;
    background: #020617;
    font-size: 13px;
}

.upload-box h3 {
    margin: 0 0 6px 0;
}

/* 文件选择框 */
input[type="file"] {
    margin-top: 6px;
    margin-bottom: 6px;
}

/* 账号列表 */
.accounts {
    margin-top: 10px;
    max-height: 400px;
    overflow-y: auto;
}

/* 账号状态块 */
.acc {
    padding: 8px;
    margin-bottom: 6px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    background: #064e3b;
}

.acc.UNAUTHORIZED {
    background: #374151;
}

.acc.DEAD {
    background: #7f1d1d;
}

.acc.LIMITED {
    background: #78350f;
}

/* 选中账号样式 */
.acc.selected {
    outline: 2px solid #3b82f6;
}

/* 标签样式 */
label {
    display: block;
    margin-top: 10px;
    margin-bottom: 4px;
    font-size: 14px;
}

/* 文本框 */
textarea {
    width: 100%;
    resize: vertical;
    border-radius: 8px;
    border: 1px solid #4b5563;
    background: #111827;
    color: #f9fafb;
    padding: 8px;
    font-size: 14px;
}

/* 发送按钮 */
.right button {
    margin-top: 12px;
}

/* 结果显示框 */
.result-box {
    margin-top: 10px;
    padding: 10px;
    background: #020617;
    border: 1px dashed #6b7280;
    border-radius: 8px;
    min-height: 60px;
    font-size: 13px;
}