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

:root {
    /* 现代化主题色彩 */
    --bg-start: #667eea;
    --bg-end: #764ba2;
    --bg-secondary: rgba(255, 255, 255, 0.1);
    --primary: #667eea;           /* 主按钮 */
    --primary-hover: #5a67d8;
    --accent: #48bb78;            /* 次要操作/复制 */
    --accent-hover: #38a169;
    --danger: #f56565;
    --danger-hover: #e53e3e;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --card-border: rgba(255, 255, 255, 0.2);
    --card-bg: rgba(255, 255, 255, 0.95);
    --muted-bg: rgba(247, 250, 252, 0.8);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-end) 100%);
    min-height: 100vh;
    background-attachment: fixed;
}

/* 新版布局 */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }
.app-header {
    height: 64px; 
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    padding: 0 32px; 
    background: var(--glass-bg); 
    backdrop-filter: saturate(1.8) blur(20px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.brand-title { 
    font-weight: 700; 
    color: white; 
    letter-spacing: 0.5px; 
    font-size: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.app-body { 
    display: grid; 
    grid-template-columns: 320px 1fr; 
    gap: 32px; 
    padding: 32px; 
    max-width: 1400px; 
    margin: 0 auto; 
    width: 100%; 
}
.sidebar { 
    background: var(--glass-bg); 
    border: 1px solid var(--glass-border); 
    border-radius: 20px; 
    padding: 24px; 
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    backdrop-filter: blur(20px);
    height: fit-content;
    position: sticky;
    top: 100px;
}
.sidebar-section { margin-bottom: 24px; }
.sidebar-heading { 
    font-size: 16px; 
    color: white; 
    margin: 0 0 16px; 
    font-weight: 600; 
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.search-input { 
    width: 100%; 
    height: 44px; 
    padding: 12px 16px; 
    border: 2px solid var(--glass-border); 
    border-radius: 12px; 
    outline: none; 
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}
.search-input:focus { 
    border-color: rgba(255, 255, 255, 0.6); 
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
    background: white;
}
.sidebar-form input[type="text"], .sidebar-form textarea { 
    width: 100%; 
    border: 2px solid var(--glass-border); 
    border-radius: 12px; 
    padding: 12px 16px; 
    margin-bottom: 12px; 
    font-size: 14px;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
}
.sidebar-form input[type="text"]:focus, .sidebar-form textarea:focus {
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
    background: white;
    outline: none;
}
.sidebar-form textarea { 
    min-height: 160px; 
    resize: vertical; 
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace; 
    line-height: 1.5;
}
.upload-box { display: flex; gap: 8px; align-items: center; }
.content { min-height: 60vh; }
.list-header { 
    display: flex; 
    align-items: baseline; 
    justify-content: space-between; 
    padding: 0 0 24px; 
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 32px;
}
.list-header h2 {
    color: white;
    font-size: 32px;
    font-weight: 700;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.list-hint { 
    font-size: 14px; 
    color: rgba(255, 255, 255, 0.8); 
    background: var(--glass-bg);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}
.app-footer { 
    text-align: center; 
    padding: 32px 0 40px; 
    color: rgba(255, 255, 255, 0.6); 
    font-size: 14px;
}

/* 旧版头部相关样式移除，避免覆盖 app-header */

@media (max-width: 900px) {
    .app-body { 
        grid-template-columns: 1fr; 
        padding: 20px;
        gap: 24px;
    }
    .sidebar {
        position: static;
    }
    .app-header {
        padding: 0 20px;
    }
    .brand-title {
        font-size: 18px;
    }
}

/* 列表容器背景透明，保留全局渐变背景 */
.list-section { background: transparent; padding: 0; box-shadow: none; border-radius: 0; }

h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-secondary);
    font-weight: 500;
}

input[type="text"],
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--card-border);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
}

textarea {
    min-height: 200px;
    resize: vertical;
    font-family: 'Courier New', monospace;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}

.loading {
    text-align: center;
    color: #7f8c8d;
    padding: 20px;
}

.error-message {
    background-color: var(--danger);
    color: #fff;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* 列表容器：卡片网格 */
.deployed-list { display: contents; }

.deployed-item {
    border: 1px solid #ecf0f1;
    padding: 20px;
    border-radius: 4px;
    background-color: #f8f9fa;
    transition: transform 0.2s, box-shadow 0.2s;
}

.deployed-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.deployed-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.deployed-item .description {
    color: #7f8c8d;
    margin-bottom: 10px;
}

.deployed-item .meta {
    font-size: 0.9rem;
    color: #95a5a6;
    margin-bottom: 15px;
}

.item-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* V2版本卡片样式 */
.page-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.page-card {
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    background: var(--card-bg);
    cursor: grab;
    backdrop-filter: blur(20px);
    position: relative;
}

.page-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}

.page-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.page-card.dragging { opacity: 0.7; box-shadow: 0 8px 28px rgba(0,0,0,0.18); }
.page-card.drag-over { outline: 2px dashed #60a5fa; outline-offset: -6px; }

.page-card-preview {
    height: 200px;
    background: var(--muted-bg);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--card-border);
}

.page-preview-frame {
    width: 100%;
    height: 100%;
    border: none;
    pointer-events: none;
    background: white;
    transform: scale(0.3);
    transform-origin: top left;
    width: 333.33%;
    height: 333.33%;
}

.preview-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    font-size: 14px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.page-card-content {
    padding: 16px;
}

.page-title {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.page-description {
    margin: 0 0 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.page-meta {
    font-size: 12px;
    color: #9aa3af;
    margin-bottom: 12px;
}

.page-card-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    padding: 0;
    border-top: 1px solid var(--card-border);
    background: transparent;
}

.page-card-actions button {
    padding: 12px 10px;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-right: 1px solid var(--glass-border);
    font-weight: 500;
}

.page-card-actions button:last-child { border-right: none; }
.page-card-actions button:hover { 
    background-color: rgba(255, 255, 255, 1);
    transform: translateY(-1px);
}

/* 四个操作按钮主题色：查看(主)、复制(强调)、编辑、删除(危险) */
.btn-view { 
    color: #fff; 
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}
.btn-view:hover { 
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transform: translateY(-2px);
}
.btn-copy { 
    color: var(--accent); 
    background: rgba(255, 255, 255, 0.9);
}
.btn-copy:hover { 
    background: var(--accent); 
    color: #fff;
    box-shadow: 0 2px 8px rgba(72, 187, 120, 0.3);
}
.btn-edit { 
    color: #667eea; 
    background: rgba(255, 255, 255, 0.9);
}
.btn-edit:hover { 
    background: #667eea; 
    color: #fff;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}
.btn-delete { 
    color: var(--danger); 
    background: rgba(255, 255, 255, 0.9);
}
.btn-delete:hover { 
    background: var(--danger); 
    color: #fff;
    box-shadow: 0 2px 8px rgba(245, 101, 101, 0.3);
}

/* 移除重复样式，已在上面定义 */

@media (max-width: 768px) {
    .page-cards-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .page-card {
        margin: 0 10px;
    }
}

.btn-copy {
    padding: 8px 16px;
    border: 1px solid var(--accent);
    background-color: #fff;
    color: var(--accent);
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-copy:hover {
    background-color: var(--accent);
    color: #fff;
}

.btn-secondary {
    padding: 8px 16px;
    border: 1px solid var(--primary);
    background-color: #fff;
    color: var(--primary);
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: #fff;
}

.btn-danger {
    padding: 8px 16px;
    border: 1px solid var(--danger);
    background-color: #fff;
    color: var(--danger);
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-danger:hover {
    background-color: var(--danger);
    color: #fff;
}

/* 使用 .app-footer，自定义 footer 标签样式移除 */

.success-message {
    background-color: var(--accent);
    color: #fff;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

/* Modal 模态框样式 */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(3px);
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    cursor: pointer;
}

.modal-dialog {
    position: relative;
    background: #fff;
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 85vh;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    padding: 20px 24px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.8);
    padding: 4px;
    border-radius: 50%;
    transition: all 0.2s;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.modal-body {
    padding: 24px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body .form-group {
    margin-bottom: 20px;
}

.modal-body .form-group:last-child {
    margin-bottom: 0;
}

.modal-body label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.modal-body input[type="text"],
.modal-body textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
    background: #fafbfc;
}

.modal-body input[type="text"]:focus,
.modal-body textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.modal-body textarea {
    min-height: 200px;
    resize: vertical;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    line-height: 1.5;
}

.modal-footer {
    padding: 16px 24px 20px;
    background: #f8f9fa;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-footer .btn-secondary {
    padding: 10px 20px;
    border: 2px solid #d1d5db;
    background: white;
    color: #6b7280;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 80px;
}

.modal-footer .btn-secondary:hover {
    background: #f3f4f6;
    border-color: #9ca3af;
    color: #4b5563;
}

.modal-footer .btn-primary {
    padding: 10px 20px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 80px;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.2);
}

.modal-footer .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.modal-footer .btn-primary:active {
    transform: translateY(0);
}