/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #165dff;
    --primary-hover: #4080ff;
    --secondary-color: #86909c;
    --success-color: #00b42a;
    --warning-color: #ff7d00;
    --danger-color: #f53f3f;
    --bg-color: #f7f8fa;
    --card-bg: #ffffff;
    --text-primary: #1d2129;
    --text-secondary: #4e5969;
    --text-disabled: #c9cdd4;
    --border-color: #e5e6eb;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-size: 14px;
    line-height: 1.5715;
    color: var(--text-primary);
    background-color: var(--bg-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-hover);
}

/* 容器 */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 顶部导航栏 */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
}

.logo svg {
    flex-shrink: 0;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* 主布局 */
.main-layout {
    max-width: 1200px;
    margin: 24px auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
    flex: 1;
}

/* 侧边栏 */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-section {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.sidebar-title {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
}

.sidebar-title:hover {
    background: var(--bg-color);
}

.sidebar-title svg {
    flex-shrink: 0;
}

.sidebar-title span {
    flex: 1;
}

.arrow-icon {
    transition: transform 0.2s;
}

.arrow-icon.open {
    transform: rotate(180deg);
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px 10px 40px;
    color: var(--text-secondary);
    transition: all 0.2s;
    cursor: pointer;
}

.menu-item:hover {
    background: var(--bg-color);
    color: var(--primary-color);
}

.menu-item.active {
    background: #e8f3ff;
    color: var(--primary-color);
    font-weight: 500;
}

.menu-item svg {
    flex-shrink: 0;
}

.sidebar-ad {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s;
}

.sidebar-ad:hover {
    transform: translateY(-2px);
}

.sidebar-ad img {
    width: 100%;
    height: auto;
    display: block;
}

/* 主内容 */
.content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 16px;
    color: var(--text-primary);
}

.card-header svg {
    flex-shrink: 0;
}

.card-body {
    padding: 20px;
}

/* 表单 */
.activation-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.form-label.required::before {
    content: "*";
    color: var(--danger-color);
    margin-right: 4px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    line-height: 1.5715;
    color: var(--text-primary);
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.2s;
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(22, 93, 255, 0.1);
}

.form-input:disabled,
.form-input[readonly] {
    background-color: var(--bg-color);
    color: var(--text-disabled);
    cursor: not-allowed;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.select-wrapper {
    position: relative;
}

.form-select {
    appearance: none;
    padding-right: 32px;
    cursor: pointer;
}

.select-arrow {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-secondary);
}

/* 按钮 */
.form-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5715;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn svg {
    flex-shrink: 0;
}

.btn-primary {
    color: #ffffff;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-primary:active:not(:disabled) {
    background-color: #0e42d2;
    border-color: #0e42d2;
}

.btn-secondary {
    color: var(--text-primary);
    background-color: transparent;
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-color);
    border-color: var(--secondary-color);
}

.btn-secondary:active:not(:disabled) {
    background-color: #e5e6eb;
}

/* 折叠面板 */
.collapse-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.collapse-item {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.collapse-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
    font-weight: 500;
}

.collapse-header:hover {
    background: var(--bg-color);
}

.collapse-arrow {
    flex-shrink: 0;
    transition: transform 0.2s;
    color: var(--text-secondary);
}

.collapse-item.open .collapse-arrow {
    transform: rotate(90deg);
}

.collapse-content {
    display: block;
    padding: 0 16px 16px 40px;
    color: var(--text-secondary);
    line-height: 1.8;
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.collapse-item:not(.open) .collapse-content {
    display: none;
    max-height: 0;
}

.collapse-content p {
    margin-bottom: 12px;
}

.collapse-content p:last-child {
    margin-bottom: 0;
}

.collapse-content ul {
    margin: 12px 0;
    padding-left: 20px;
}

.collapse-content ul li {
    margin-bottom: 8px;
}

/* 检测页面样式 */
.check-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 20px 0;
}

.check-info {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.check-info h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin: 0;
}

.check-info p {
    color: var(--text-secondary);
    margin: 0;
    max-width: 600px;
}

.check-actions {
    display: flex;
    justify-content: center;
}

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
}

.check-steps {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
}

.check-steps h4 {
    margin: 0 0 16px 0;
    color: var(--text-primary);
    font-size: 16px;
}

.check-steps ol {
    margin: 0;
    padding-left: 24px;
}

.check-steps ol li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.check-steps ol li:last-child {
    margin-bottom: 0;
}

/* 监控页面样式 */
.monitor-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.monitor-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.monitor-info p {
    margin: 0;
    color: var(--text-secondary);
}

.server-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.server-item {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    transition: box-shadow 0.2s;
}

.server-item:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.server-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.server-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-primary);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.status-online {
    background: var(--success-color);
    box-shadow: 0 0 0 2px rgba(0, 200, 83, 0.2);
}

.status-dot.status-offline {
    background: var(--danger-color);
    box-shadow: 0 0 0 2px rgba(245, 63, 63, 0.2);
}

.server-status {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.status-online {
    background: rgba(0, 200, 83, 0.1);
    color: var(--success-color);
}

.status-badge.status-offline {
    background: rgba(245, 63, 63, 0.1);
    color: var(--danger-color);
}

.response-time {
    font-size: 13px;
    color: var(--text-secondary);
}

.server-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.detail-item {
    display: flex;
    gap: 8px;
    font-size: 14px;
}

.detail-label {
    color: var(--text-secondary);
    min-width: 80px;
}

.detail-value {
    color: var(--text-primary);
    font-family: 'Consolas', 'Monaco', monospace;
}

/* 底部 */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    margin-top: 32px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
}

.footer-info {
    margin-bottom: 24px;
}

.footer-info h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.footer-info p {
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 600px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

/* 通知提示 */
.notification {
    position: fixed;
    top: 80px;
    right: 24px;
    min-width: 300px;
    max-width: 400px;
    padding: 16px 20px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateX(calc(100% + 24px));
    transition: transform 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-left: 4px solid var(--success-color);
}

.notification.error {
    border-left: 4px solid var(--danger-color);
}

.notification.warning {
    border-left: 4px solid var(--warning-color);
}

.notification.info {
    border-left: 4px solid var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .nav {
        gap: 16px;
    }

    .nav-link {
        font-size: 13px;
    }

    .header-content {
        padding: 0 16px;
    }

    .main-layout {
        padding: 0 16px;
    }

    .card-body {
        padding: 16px;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* 加载动画 */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading {
    animation: spin 1s linear infinite;
}

/* 选中文本样式 */
::selection {
    background-color: rgba(22, 93, 255, 0.2);
    color: var(--text-primary);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}