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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.header h1 {
    font-size: 28px;
    color: #667eea;
    margin-bottom: 15px;
    text-align: center;
}

.status-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #f5f5f5;
    border-radius: 8px;
    font-size: 14px;
}

.status-label {
    color: #666;
    font-weight: 500;
}

.status-value {
    color: #333;
    font-weight: 600;
}

.main-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

.panorama-container {
    position: relative;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    min-height: 500px;
}

.panorama {
    width: 100%;
    height: 100%;
    min-height: 500px;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 1000;
    border-radius: 12px;
}

.loading-overlay.hidden {
    display: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.info-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.info-card h3 {
    font-size: 18px;
    color: #667eea;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: #666;
    font-size: 14px;
}

.info-value {
    color: #333;
    font-weight: 600;
    font-size: 14px;
}

.control-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
}

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

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

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background: #5a6268;
    transform: translateY(-2px);
}

.btn-info {
    background: #17a2b8;
    color: white;
}

.btn-info:hover:not(:disabled) {
    background: #138496;
    transform: translateY(-2px);
}

.control-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.control-row label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #333;
}

.control-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.control-row select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    flex: 1;
}

.line-selector {
    width: 100%;
    padding: 12px;
    border: 2px solid #667eea;
    border-radius: 8px;
    font-size: 16px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.line-selector:focus {
    outline: none;
    border-color: #764ba2;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.footer {
    text-align: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    color: #666;
    font-size: 14px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.footer kbd {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 3px;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 11px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    margin: 0 2px;
}

/* 帮助按钮 */
.btn-help {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid #667eea;
    background: white;
    color: #667eea;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.btn-help:hover {
    background: #667eea;
    color: white;
    transform: scale(1.1);
}

/* 帮助对话框 */
.help-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.help-dialog.hidden {
    display: none;
}

.help-dialog-content {
    background: white;
    border-radius: 12px;
    max-width: 600px;
    max-height: 80vh;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease-out;
}

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

.help-dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #f0f0f0;
}

.help-dialog-header h2 {
    margin: 0;
    color: #667eea;
    font-size: 24px;
}

.btn-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    font-size: 28px;
    color: #666;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.btn-close:hover {
    background: #f5f5f5;
    color: #333;
}

.help-dialog-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.help-dialog-body h3 {
    color: #667eea;
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 18px;
}

.help-dialog-body h3:first-child {
    margin-top: 0;
}

.help-dialog-body ol,
.help-dialog-body ul {
    margin: 10px 0;
    padding-left: 25px;
}

.help-dialog-body li {
    margin: 8px 0;
    line-height: 1.6;
}

.help-dialog-body kbd {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 3px;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 12px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Toast提示样式 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    min-width: 200px;
    max-width: 400px;
    pointer-events: auto;
    animation: slideInRight 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.success {
    background: rgba(40, 167, 69, 0.95);
}

.toast.error {
    background: rgba(220, 53, 69, 0.95);
}

.toast.warning {
    background: rgba(255, 193, 7, 0.95);
    color: #333;
}

.toast.info {
    background: rgba(23, 162, 184, 0.95);
}

.toast.fade-out {
    animation: fadeOut 0.3s ease-out forwards;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* 离线提示 */
.offline-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #dc3545;
    color: white;
    padding: 10px;
    text-align: center;
    z-index: 9999;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.3s ease-out;
}

.offline-indicator.hidden {
    display: none;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header h1 {
        font-size: 22px;
    }

    .status-bar {
        flex-direction: column;
        gap: 10px;
    }

    .status-item {
        justify-content: space-between;
    }

    .panorama-container {
        min-height: 400px;
    }

    .panorama {
        min-height: 400px;
    }

    .control-buttons {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .btn {
        flex: 1;
        min-width: 100px;
    }
}

/* 状态指示器 */
.status-value.active {
    color: #28a745;
}

.status-value.error {
    color: #dc3545;
}

.status-value.warning {
    color: #ffc107;
}