:root {
    --primary: #4a90e2;
    --dark: #2c3e50;
    --dark-light: #f5f7fa;
    --info: #909399;
    --border: #dcdfe6;
}

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

body {
    font-family: Arial, 'HarmonyOS Sans', sans-serif;
    background-color: #f5f5f5;
    color: #333333;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

.btn-lg {
    padding: 14px 24px;
    font-size: 16px;
}

.btn-outline {
    background: transparent;
    color: var(--dark);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s, color 0.2s;
}

.btn-outline:hover {
    background-color: var(--dark-light);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-danger:hover {
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-warning:hover {
    box-shadow: 0 5px 15px rgba(245, 87, 108, 0.4);
}

.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, .2);
    width: 100%;
    max-width: 400px;
    padding: 40px 60px;
}

.login-header {
    text-align: center;
    margin-bottom: 20px;
}

.login-header h1 {
    color: var(--dark);
    font-size: 28px;
    margin-bottom: 8px;
    font-family: 'HarmonyOS Sans', sans-serif;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

.login-footer a {
    color: var(--info);
    font-size: 13px;
    text-decoration: none;
}

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

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav {
    display: flex;
    gap: 10px;
}

.nav a {
    color: white;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    transition: background-color 0.3s;
    font-size: 1rem;
}

.nav a:hover, .nav a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    z-index: 1000;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: white;
    transition: all 0.3s ease;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-menu a {
    color: white;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    transition: background-color 0.3s;
    font-size: 1rem;
}

.user-menu a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.user-avatar {
    width:32px;
    height:32px;
    border-radius:50%;
    overflow:hidden;
}

.user-avatar img {
    width:100%;
    height:100%;
    object-fit:cover;
}

.user-info span {
    font-size: 1rem;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.card-list {
    margin-top: 20px;
}

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

.card-section h2 {
    color: var(--dark);
    font-size: 1.5rem;
}

.card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    padding: 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card-header {
    font-size: 18px;
    font-weight: bold;
    padding-bottom: 15px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.card-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--border);
}

.card-info {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 40px;
}

.card-info svg {
    width: 40px;
    height: 40px;
    color: var(--primary);
}

.card-info span {
    font-weight: bold;
    font-size: 20px;
    color: var(--dark);
}

.card-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom:10px;
}

.empty-state {
    text-align: center;
    padding: 40px;
}

.card-state {
    display: flex;
    gap:15px;
}

.card-state img {
    width:50px;
    height:50px;
    border-radius:8px;
    object-fit:cover;
    flex-shrink:0
}

.card-text {
    flex:1;
    min-width:0;
}

.card-text-title {
    font-size:18px;
    font-weight:bold;
    margin-bottom:5px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}

.card-text-url {
    color: #999;
    word-break:break-all;
    font-size:13px;
}

.card-button {
    margin-top:15px;
    display: flex;
    gap:10px;
}

.card-submit {
    margin-top: 20px;
    text-align: center;
}

.epages {
    text-align: center;
    padding: 20px 40px;
}

.epages a {
    text-decoration: none;
    padding: 6px 12px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.3s;
    font-family: Arial, sans-serif;
}

.form-group input:focus,
.form-group input:select,
.form-group textarea:focus {
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group input:disabled {
    background-color: #f5f5f5;
    cursor: not-allowed;
}

.alert {
    position:fixed;
    top:20px;
    right:20px;
    z-index:1000;
    max-width:300px;
    padding: 12px 15px;
    border-radius: 8px;
    font-size: 14px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: #fff;
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    margin: 0;
    color: var(--dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--info);
    padding: 0;
    line-height: 1;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    display: flex;
    gap: 10px;
    padding: 15px 20px;
    border-top: 1px solid var(--border);
}

.modal-footer button {
    flex: 1;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 70%;
        max-width: 280px;
        height: calc(100vh - 80px);
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 20px;
        padding: 20px;
        transition: left 0.3s ease;
        box-shadow: 5px 0 15px rgba(0,0,0,0.1);
        z-index: 999;
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav a {
        font-size: 18px;
        width: 100%;
        padding: 12px 15px;
        border-radius: 8px;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}