/* 后台样式 - 浅色主题 */
.admin-page {
    background: var(--bg);
    min-height: 100vh;
}

.admin-header {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, #FFFFFF 0%, #F8FAFC 100%);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.admin-header h1 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, #0F172A 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-header nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.admin-header nav a {
    color: var(--accent);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    transition: var(--transition);
    font-size: 0.9rem;
}

.admin-header nav a:hover {
    background: var(--accent-glow);
    transform: translateY(-1px);
}

.admin-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
}

.admin-login-box {
    max-width: 400px;
    margin: 4rem auto;
    padding: 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.admin-login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--green));
}

.admin-login-box h1 {
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    background: linear-gradient(135deg, #0F172A 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-login-box .error {
    color: #f85149;
    margin-bottom: 1rem;
}

.admin-login-box .form-group {
    margin-bottom: 1rem;
}

.admin-login-box label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.admin-login-box input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    font-size: 1rem;
    background: var(--bg-elevated);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    transition: var(--transition);
}

.admin-login-box input:hover {
    border-color: var(--border-hover);
}

.admin-login-box input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: var(--bg-card);
}

.admin-login-box button {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.admin-login-box button:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.3);
}

.admin-login-box button:active {
    transform: translateY(0);
}

.admin-login-box .back {
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.admin-login-box .back a {
    color: var(--text-muted);
}

/* 列表表格 */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 0.75rem 0.85rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    color: var(--text-muted);
    font-weight: 600;
    background: var(--bg-elevated);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.admin-table tbody tr {
    transition: var(--transition);
}

.admin-table tbody tr:hover {
    background: var(--bg-elevated);
}

.admin-table a {
    color: var(--accent);
    transition: var(--transition);
}

.admin-table a:hover {
    color: var(--accent-dim);
}

.admin-table .btn-delete {
    background: none;
    border: none;
    color: var(--red);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    margin-left: 0.5rem;
    font-size: inherit;
    border-radius: 4px;
    transition: var(--transition);
}

.admin-table .btn-delete:hover {
    background: rgba(248, 81, 73, 0.15);
    transform: translateY(-1px);
}

.btn-inline {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    margin-right: 0.5rem;
    font-size: inherit;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-inline:hover {
    background: var(--accent-glow);
    transform: translateY(-1px);
}

/* 表单 */
.admin-form .form-group {
    margin-bottom: 1rem;
}

.admin-form .form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-form .form-row .form-group {
    flex: 1;
    min-width: 120px;
}

.admin-form label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.admin-form input,
.admin-form select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
}

.admin-form .hint {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.admin-form .error {
    color: #f85149;
    margin-bottom: 1rem;
}

.admin-form .form-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.admin-form .form-actions button {
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.admin-form .form-actions button:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.3);
}

.admin-form .form-actions button:active {
    transform: translateY(0);
}

.admin-form .form-actions .btn-cancel {
    color: var(--text-muted);
}

.country-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.6rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
}

.tag-chip:hover, .tag-chip:has(input:checked) {
    border-color: var(--accent);
    background: rgba(88, 166, 255, 0.1);
}

.tag-chip input {
    margin-right: 0.35rem;
    width: auto;
}

.dashboard-section {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.dashboard-section:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dashboard-section h2 {
    font-size: 1.2rem;
    margin: 0 0 1rem 0;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dashboard-section h2::before {
    content: '';
    width: 4px;
    height: 1.2rem;
    background: linear-gradient(180deg, var(--accent), var(--green));
    border-radius: 2px;
}

.provider-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
}

.provider-item {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.provider-item .provider-name,
.provider-item a:first-of-type {
    font-weight: 500;
}

.provider-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.provider-item .btn-delete {
    margin-left: auto;
}

.hint {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* 成功消息 */
.success-msg {
    padding: 0.75rem 1rem;
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid var(--green);
    border-radius: 6px;
    color: var(--green);
    margin-bottom: 1rem;
    animation: slideDown 0.3s ease-out;
    font-weight: 500;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式优化 */
@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-header nav {
        width: 100%;
        justify-content: flex-start;
    }

    .dashboard-section {
        padding: 1rem;
    }

    .admin-table {
        font-size: 0.85rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }
}