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

:root {
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-light: #a0aec0;
    --bg-primary: #f7fafc;
    --bg-card: #ffffff;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif SC', serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    opacity: 0.1;
    z-index: -1;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 3.5rem;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(102, 126, 234, 0.2);
}

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    letter-spacing: 0.2rem;
}

.quote-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    margin-bottom: 2rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.quote-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bg-gradient);
}

.quote-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.quote-content {
    position: relative;
    margin-bottom: 1.5rem;
}

.quote-mark {
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    font-family: Georgia, serif;
    line-height: 1;
}

.quote-mark.left {
    top: -1rem;
    left: -0.5rem;
}

.quote-mark.right {
    bottom: -2rem;
    right: -0.5rem;
}

.quote-text {
    font-size: 1.5rem;
    line-height: 2;
    text-align: center;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
    min-height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-normal);
}

.quote-text.fade-out {
    opacity: 0;
}

.quote-text.fade-in {
    opacity: 1;
}

.quote-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.quote-author,
.quote-source {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.quote-author::before {
    content: '—— ';
}

.quote-category {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: var(--bg-gradient);
    color: white;
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    text-align: center;
    margin: 0 auto;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: var(--radius-xl);
    font-family: inherit;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover .btn-icon {
    transform: rotate(180deg);
}

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-secondary.active {
    background: #e53e3e;
    border-color: #e53e3e;
    color: white;
}

.btn-secondary.active svg {
    fill: white;
}

.btn-danger {
    background: #e53e3e;
    color: white;
    padding: 0.6rem 1.2rem;
}

.btn-danger:hover {
    background: #c53030;
}

.favorites-section,
.settings-section {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.section-icon {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
}

.btn-toggle {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    padding: 0.3rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-toggle:hover {
    background: #f7fafc;
    color: var(--primary-color);
}

.toggle-icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.btn-toggle.active .toggle-icon {
    transform: rotate(180deg);
}

.favorites-list,
.settings-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.favorites-list.expanded,
.settings-content.expanded {
    max-height: 500px;
    overflow-y: auto;
}

.favorites-list {
    padding: 0;
}

.favorites-list.expanded {
    padding: 1rem;
}

.favorite-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1rem;
    background: #f7fafc;
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    transition: all var(--transition-fast);
}

.favorite-item:hover {
    background: #edf2f7;
}

.favorite-content {
    flex: 1;
    margin-right: 1rem;
}

.favorite-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.favorite-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.favorite-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon-small {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.btn-icon-small:hover {
    background: #e2e8f0;
    color: var(--primary-color);
}

.btn-icon-small.delete:hover {
    background: #fed7d7;
    color: #e53e3e;
}

.btn-icon-small svg {
    width: 16px;
    height: 16px;
}

.empty-favorites {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.settings-content.expanded {
    padding: 1.5rem;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.setting-item:last-child {
    border-bottom: none;
    justify-content: center;
}

.setting-label {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.setting-select,
.setting-input {
    padding: 0.5rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: white;
    transition: border-color var(--transition-fast);
}

.setting-select:focus,
.setting-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.setting-input {
    width: 80px;
    text-align: center;
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #e2e8f0;
    transition: var(--transition-fast);
    border-radius: 26px;
}

.toggle-label::before {
    position: absolute;
    content: '';
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-label {
    background: var(--bg-gradient);
}

.toggle-switch input:checked + .toggle-label::before {
    transform: translateX(24px);
}

.footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    font-size: 0.85rem;
    color: var(--text-light);
    letter-spacing: 0.1rem;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--text-primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    background: #48bb78;
}

.toast.error {
    background: #e53e3e;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 1.5rem 1rem;
    }
    
    .logo {
        font-size: 2.5rem;
        letter-spacing: 0.3rem;
    }
    
    .quote-card {
        padding: 2rem 1.5rem;
    }
    
    .quote-text {
        font-size: 1.25rem;
    }
    
    .quote-mark {
        font-size: 3rem;
    }
    
    .action-buttons {
        gap: 0.75rem;
    }
    
    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .btn span {
        display: none;
    }
    
    .btn-icon {
        width: 20px;
        height: 20px;
    }
    
    .section-header {
        padding: 0.8rem 1rem;
    }
    
    .setting-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 2rem;
    }
    
    .quote-card {
        padding: 1.5rem 1rem;
    }
    
    .quote-text {
        font-size: 1.1rem;
    }
    
    .quote-meta {
        flex-direction: column;
        gap: 0.3rem;
    }
    
    .action-buttons {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .btn {
        justify-content: center;
    }
    
    .favorite-item {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .favorite-actions {
        align-self: flex-end;
    }
}

.api-section {
    margin-top: 1.5rem;
}

.api-content {
    margin-top: 1rem;
}

.api-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.api-header-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.api-base-url {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.api-url-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.api-url {
    padding: 0.6rem 1rem;
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--primary-color);
    border: 1px solid rgba(102, 126, 234, 0.2);
    white-space: nowrap;
}

.btn-copy {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    white-space: nowrap;
}

.btn-copy:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.api-categories {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.category-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.8rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 2px 6px rgba(102, 126, 234, 0.25);
}

.category-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.35);
}

.category-tag[data-key="all"] {
    background: linear-gradient(135deg, #48bb78, #38a169);
}

.endpoints-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.endpoints-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.endpoint-list {
    display: grid;
    gap: 1rem;
}

.endpoint-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    border: 1px solid var(--border);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.endpoint-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: var(--transition-fast);
}

.endpoint-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.15);
}

.endpoint-card:hover::before {
    opacity: 1;
}

.endpoint-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.endpoint-method {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.endpoint-method.get {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    color: #1565c0;
}

.endpoint-method.post {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    color: #2e7d32;
}

.endpoint-method.delete {
    background: linear-gradient(135deg, #ffebee, #ffcdd2);
    color: #c62828;
}

.endpoint-path {
    font-family: 'SF Mono', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: #f8f9fa;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-weight: 500;
}

.endpoint-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    padding-left: 0;
}

.endpoint-params {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.params-label, .example-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.param-tag {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    background: linear-gradient(135deg, #fff8e1, #ffecb3);
    color: #f57c00;
    border-radius: 4px;
    font-size: 0.7rem;
    font-family: 'SF Mono', 'Courier New', monospace;
    font-weight: 500;
}

.endpoint-example {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, #fafbfc, #f5f7fa);
    border-radius: var(--radius-sm);
    border: 1px solid #e8ecf0;
}

.example-url {
    flex: 1;
    font-family: 'SF Mono', 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.5;
}

.btn-copy-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.7rem;
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
    white-space: nowrap;
}

.btn-copy-small:hover {
    background: var(--primary-color);
    color: white;
}

.api-error {
    color: #e53e3e;
    text-align: center;
    padding: 2rem;
}

@media (max-width: 768px) {
    .api-header-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .endpoint-example {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .example-url {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .background-animation {
        animation: none;
    }
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}