:root {
    --twitter-blue: #1DA1F2;
    --twitter-dark: #15202B;
    --twitter-card: #192734;
    --twitter-border: #38444D;
    --twitter-text: #F7F9F9;
    --twitter-gray: #8899A6;
    --twitter-hover: #1c2b3a;
    --twitter-accent: #794BC4;
    --success: #17BF63;
    --error: #E0245E;
    --info: #1DA1F2;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

body {
    background-color: var(--twitter-dark);
    color: var(--twitter-text);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 15px;
    padding: 15px;
}

/* 左侧导航 */
.sidebar {
    position: sticky;
    top: 15px;
    height: calc(100vh - 30px);
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 20px 0;
}

.logo {
    padding: 0 15px;
    font-size: 28px;
    font-weight: 700;
    color: var(--twitter-blue);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    color: var(--twitter-blue);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-item {
    padding: 12px 15px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    color: var(--twitter-text);
}

.nav-item:hover {
    background-color: var(--twitter-hover);
    color: var(--twitter-blue);
}

.nav-item.active {
    color: var(--twitter-blue);
    font-weight: 600;
}

.nav-item i {
    width: 25px;
    text-align: center;
}

/* 主内容区域 */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.header {
    background-color: rgba(21, 32, 43, 0.8);
    backdrop-filter: blur(10px);
    padding: 15px 20px;
    border-radius: 15px;
    position: sticky;
    top: 15px;
    z-index: 10;
    border: 1px solid var(--twitter-border);
}

.header h1 {
    font-size: 24px;
    font-weight: 800;
}

.tabs {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    border-bottom: 1px solid var(--twitter-border);
}

.tab {
    padding: 10px 0;
    position: relative;
    font-weight: 600;
    cursor: pointer;
    color: var(--twitter-gray);
}

.tab.active {
    color: var(--twitter-blue);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--twitter-blue);
    border-radius: 4px;
}

/* 卡片样式 */
.card {
    background-color: var(--twitter-card);
    border-radius: 16px;
    border: 1px solid var(--twitter-border);
    padding: 20px;
    margin-bottom: 15px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
}

.card-title i {
    color: var(--twitter-blue);
    margin-right: 10px;
}

/* 表单控件 */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--twitter-gray);
    font-size: 14px;
}

select,
button {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--twitter-border);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--twitter-card);
    color: var(--twitter-text);
}

select:focus {
    outline: none;
    border-color: var(--twitter-blue);
    box-shadow: 0 0 0 2px rgba(29, 161, 242, 0.3);
}

button {
    background-color: var(--twitter-blue);
    color: white;
    font-weight: 700;
    cursor: pointer;
    border: none;
    margin-top: 10px;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #1a91da;
}

/* 图片预览 */
.image-preview {
    height: 350px;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: 20px 0;
    border: 1px dashed var(--twitter-border);
    position: relative;
}

.image-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
    display: none;
}

.image-placeholder {
    text-align: center;
    color: var(--twitter-gray);
    padding: 20px;
}

.image-placeholder i {
    font-size: 48px;
    margin-bottom: 15px;
    color: var(--twitter-blue);
    display: block;
}

/* API结果 */
.result-display {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 15px;
    font-family: 'SF Mono', Menlo, monospace;
    font-size: 14px;
    border: 1px solid var(--twitter-border);
    overflow-x: auto;
    max-height: 300px;
    overflow-y: auto;
}

pre {
    white-space: pre-wrap;
    word-break: break-word;
    color: #78dce8;
    line-height: 1.5;
}

/* API文档 */
.endpoint-list {
    list-style: none;
}

.endpoint {
    padding: 15px;
    margin-bottom: 12px;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    border-left: 3px solid var(--twitter-blue);
}

.endpoint-header {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.method {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: bold;
    margin-right: 10px;
    font-size: 12px;
}

.get {
    background: var(--twitter-blue);
    color: white;
}

.post {
    background: #10B981;
    color: white;
}

.put {
    background: #F59E0B;
    color: white;
}

.delete {
    background: #EF4444;
    color: white;
}

.url {
    font-family: monospace;
    color: var(--twitter-blue);
    font-size: 15px;
}

.description {
    color: var(--twitter-gray);
    font-size: 14px;
}

/* 状态指示器 */
.status {
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    display: none;
    margin-top: 15px;
}

.success {
    background: rgba(23, 191, 99, 0.15);
    color: var(--success);
    display: block;
    border: 1px solid var(--success);
}

.error {
    background: rgba(224, 36, 94, 0.15);
    color: var(--error);
    display: block;
    border: 1px solid var(--error);
}

.info {
    background: rgba(29, 161, 242, 0.15);
    color: var(--info);
    display: block;
    border: 1px solid var(--info);
}

/* 统计卡片 */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.stat-card {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    border: 1px solid var(--twitter-border);
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    margin: 5px 0;
    color: var(--twitter-blue);
}

.stat-label {
    font-size: 14px;
    color: var(--twitter-gray);
}

/* 加载动画 */
.spinner {
    border: 3px solid rgba(29, 161, 242, 0.2);
    border-top: 3px solid var(--twitter-blue);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
    display: none;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* 响应式设计 */
@media (max-width: 1000px) {
    .container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: relative;
        height: auto;
        flex-direction: row;
        overflow-x: auto;
        padding: 10px 15px;
    }

    .nav-links {
        flex-direction: row;
        gap: 10px;
    }

    .nav-item span {
        display: none;
    }
}

@media (max-width: 600px) {
    .tabs {
        overflow-x: auto;
    }

    .image-preview {
        height: 250px;
    }
}

/* 计数徽章 */
.counter {
    display: inline-block;
    background: var(--twitter-blue);
    color: white;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-left: 8px;
    font-weight: 600;
}

/* 服务状态 */
.service-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.service-stat {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    border: 1px solid var(--twitter-border);
}

.service-stat-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--twitter-blue);
}

.service-stat-label {
    font-size: 12px;
    color: var(--twitter-gray);
}

/* 帮助页面特定样式 */
.help-section {
    margin-bottom: 25px;
}

.help-section h3 {
    color: var(--twitter-blue);
    margin-bottom: 15px;
    font-size: 18px;
}

.help-section ol {
    padding-left: 20px;
    margin: 10px 0;
}

.help-section li {
    margin-bottom: 8px;
}

.code-example {
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
    border: 1px solid var(--twitter-border);
    overflow-x: auto;
}

.code-example code {
    font-family: 'SF Mono', Menlo, monospace;
    font-size: 13px;
    line-height: 1.5;
}

.faq-item {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--twitter-border);
}

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

.faq-item h4 {
    color: var(--twitter-blue);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-item h4 i {
    font-size: 12px;
}

.faq-item p {
    color: var(--twitter-gray);
    line-height: 1.6;
}

.faq-item code {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', Menlo, monospace;
    font-size: 13px;
}