* {
    box-sizing: border-box;
}

body.crystal-no-scroll {
    overflow: hidden;
}

.crystal-article-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, 
        rgba(52, 152, 219, 0.08) 0%, 
        rgba(155, 89, 182, 0.08) 25%,
        rgba(255, 255, 255, 0.92) 50%,
        rgba(46, 204, 113, 0.06) 75%,
        rgba(231, 76, 60, 0.08) 100%);
    overflow: hidden;
}

.crystal-bg-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.crystal-shape {
    position: absolute;
    opacity: 0.03;
    animation: float 20s infinite linear;
}

.crystal-shape-1 {
    top: 10%;
    left: 10%;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    border-radius: 50%;
    animation-delay: 0s;
}

.crystal-shape-2 {
    top: 60%;
    right: 15%;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e74c3c, #f39c12);
    transform: rotate(45deg);
    animation-delay: -7s;
}

.crystal-shape-3 {
    bottom: 20%;
    left: 20%;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #9b59b6, #3498db);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(90deg); }
    50% { transform: translateY(0px) rotate(180deg); }
    75% { transform: translateY(-10px) rotate(270deg); }
}

.crystal-article-container {
    min-height: 100vh;
    padding: 20px 0 60px;
}

.crystal-article-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.crystal-breadcrumb {
    margin-bottom: 30px;
}

.crystal-breadcrumb-content {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 25px;
    font-size: 14px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.crystal-breadcrumb-item {
    color: #7f8c8d;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.crystal-breadcrumb-item:hover {
    color: #3498db;
}

.crystal-breadcrumb-current {
    color: #2c3e50;
    font-weight: 500;
}

.crystal-breadcrumb-separator {
    color: #bdc3c7;
}

.crystal-article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
}

.crystal-article-main {
    min-width: 0;
}

.crystal-article-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 30px;
}

.crystal-article-header {
    padding: 40px 40px 30px;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-bottom: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-article-category {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: #fff;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.crystal-article-title {
    font-size: 32px;
    font-weight: 700;
    color: #2c3e50;
    line-height: 1.3;
    margin: 0 0 25px 0;
    word-break: break-word;
}

.crystal-article-meta {
    border-top: 1px solid rgba(52, 152, 219, 0.1);
    padding-top: 20px;
}

.crystal-meta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.crystal-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #7f8c8d;
    font-size: 14px;
}

.crystal-meta-item i {
    color: #3498db;
    font-size: 16px;
}

.crystal-article-content {
    padding: 40px;
    line-height: 1.8;
    font-size: 16px;
    color: #2c3e50;
}

.crystal-article-content h1,
.crystal-article-content h2,
.crystal-article-content h3,
.crystal-article-content h4,
.crystal-article-content h5,
.crystal-article-content h6 {
    color: #2c3e50;
    font-weight: 600;
    margin: 30px 0 15px 0;
    line-height: 1.4;
}

.crystal-article-content h1 { font-size: 28px; }
.crystal-article-content h2 { font-size: 24px; }
.crystal-article-content h3 { font-size: 20px; }
.crystal-article-content h4 { font-size: 18px; }
.crystal-article-content h5 { font-size: 16px; }
.crystal-article-content h6 { font-size: 14px; }

.crystal-article-content p {
    margin: 15px 0;
    text-align: justify;
}

.crystal-article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.crystal-article-content blockquote {
    border-left: 4px solid #3498db;
    background: #f8f9fa;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 0 10px 10px 0;
    font-style: italic;
}

.crystal-article-content code {
    background: #f1f2f6;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: #e74c3c;
}

.crystal-article-content pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 20px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 20px 0;
}

.crystal-article-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

.crystal-article-content ul,
.crystal-article-content ol {
    padding-left: 30px;
    margin: 15px 0;
}

.crystal-article-content li {
    margin: 8px 0;
}

.crystal-article-content a {
    color: #3498db;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.crystal-article-content a:hover {
    border-bottom-color: #3498db;
}

.crystal-article-footer {
    padding: 30px 40px 40px;
    background: #f8f9fa;
    border-top: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-article-actions {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.crystal-action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: #fff;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    color: #7f8c8d;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.crystal-action-btn:hover {
    border-color: #3498db;
    color: #3498db;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.2);
}

.crystal-action-btn.crystal-liked {
    background: linear-gradient(135deg, #3498db, #2ecc71);
    border-color: transparent;
    color: #fff;
}

.crystal-action-btn i {
    font-size: 16px;
}

.crystal-article-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    padding-top: 20px;
    border-top: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-update-time {
    color: #95a5a6;
    font-size: 12px;
}

.crystal-article-tags {
    display: flex;
    gap: 8px;
}

.crystal-tag {
    padding: 4px 12px;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: #fff;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.crystal-related-section {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 30px;
}

.crystal-section-header {
    padding: 25px 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-section-title {
    font-size: 20px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.crystal-section-title i {
    color: #3498db;
    font-size: 22px;
}

.crystal-related-grid {
    padding: 20px;
    display: grid;
    gap: 15px;
}

.crystal-related-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: #f8f9fa;
    border-radius: 12px;
    text-decoration: none;
    color: #2c3e50;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.crystal-related-item:hover {
    background: #fff;
    border-color: #3498db;
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.1);
}

.crystal-related-content {
    flex: 1;
    min-width: 0;
}

.crystal-related-title {
    font-size: 16px;
    font-weight: 500;
    margin: 0 0 8px 0;
    color: #2c3e50;
    line-height: 1.4;
}

.crystal-related-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: #7f8c8d;
}

.crystal-related-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.crystal-related-arrow {
    color: #bdc3c7;
    transition: all 0.3s ease;
}

.crystal-related-item:hover .crystal-related-arrow {
    color: #3498db;
    transform: translateX(3px);
}

.crystal-comments-section {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.crystal-comment-form {
    padding: 30px;
    border-bottom: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-comment-textarea {
    width: 100%;
    min-height: 120px;
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.crystal-comment-textarea:focus {
    outline: none;
    border-color: #3498db;
}

.crystal-comment-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 15px;
}

.crystal-comment-submit {
    padding: 10px 25px;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: #fff;
    border: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.crystal-comment-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.crystal-comments-list {
    padding: 30px;
}

.crystal-no-comments {
    text-align: center;
    padding: 40px 20px;
    color: #95a5a6;
}

.crystal-no-comments i {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.crystal-article-sidebar {
    position: relative;
}

.crystal-sidebar-sticky {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-self: start;
    scrollbar-width: thin;
    scrollbar-color: rgba(52, 152, 219, 0.5) rgba(52, 152, 219, 0.1);
}

.crystal-sidebar-card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.crystal-article-sidebar{
    scrollbar-width: thin;
    scrollbar-color: rgba(52, 152, 219, 0.5) rgba(52, 152, 219, 0.1);
}
.crystal-article-sidebar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.crystal-article-sidebar::-webkit-scrollbar-track {
    background: rgba(52, 152, 219, 0.1);
    border-radius: 3px;
    margin: 5px;
}
.crystal-article-sidebar::-webkit-scrollbar-thumb {
    background: rgba(52, 152, 219, 0.5);
    border-radius: 3px;
    transition: all 0.3s ease;
}
.crystal-article-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(52, 152, 219, 0.7);
}
.crystal-toc-content,
.crystal-stats-content,
.crystal-nav-content {
    padding-right: 10px;
}

.crystal-card-header {
    padding: 20px 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-card-title {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.crystal-card-title i {
    color: #3498db;
    font-size: 18px;
}

.crystal-toc-content {
    padding: 20px 0;
    overflow: hidden;
}

.crystal-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.crystal-toc-item {
    margin: 0;
}

.crystal-toc-link {
    display: block;
    padding: 8px 25px;
    color: #7f8c8d;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.4;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.crystal-toc-link:hover {
    color: #3498db;
    background: rgba(52, 152, 219, 0.05);
    border-left-color: #3498db;
}

.crystal-toc-level-2 .crystal-toc-link { padding-left: 35px; }
.crystal-toc-level-3 .crystal-toc-link { padding-left: 45px; }
.crystal-toc-level-4 .crystal-toc-link { padding-left: 55px; }
.crystal-toc-level-5 .crystal-toc-link { padding-left: 65px; }
.crystal-toc-level-6 .crystal-toc-link { padding-left: 75px; }

.crystal-no-toc {
    text-align: center;
    padding: 30px 20px;
    color: #95a5a6;
}

.crystal-no-toc i {
    font-size: 32px;
    margin-bottom: 10px;
    display: block;
}

.crystal-stats-content {
    padding: 25px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.crystal-stat-item {
    text-align: center;
}

.crystal-stat-number {
    font-size: 24px;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 5px;
}

.crystal-stat-label {
    font-size: 12px;
    color: #7f8c8d;
    font-weight: 500;
}

.crystal-nav-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.crystal-nav-item {
    display: block;
    padding: 15px 20px;
    background: #f8f9fa;
    border-radius: 12px;
    text-decoration: none;
    color: #2c3e50;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.crystal-nav-item:hover {
    background: #fff;
    border-color: #3498db;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.1);
}

.crystal-nav-direction {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.crystal-nav-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
}

.crystal-share-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.crystal-share-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 90%;
    max-width: 500px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.crystal-share-overlay.show,
.crystal-share-popup.show {
    opacity: 1;
    visibility: visible;
}

.crystal-share-popup.show {
    transform: translate(-50%, -50%) scale(1);
}

.crystal-share-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid rgba(52, 152, 219, 0.1);
}

.crystal-share-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
}

.crystal-share-close {
    width: 35px;
    height: 35px;
    border: none;
    background: #f8f9fa;
    border-radius: 50%;
    color: #7f8c8d;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.crystal-share-close:hover {
    background: #e9ecef;
    color: #2c3e50;
}

.crystal-share-content {
    padding: 30px;
}

.crystal-share-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.crystal-share-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 15px;
    background: #f8f9fa;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: #2c3e50;
}

.crystal-share-btn:hover {
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.3);
}

.crystal-share-btn i {
    font-size: 24px;
}

.crystal-share-btn span {
    font-size: 14px;
    font-weight: 500;
}

.crystal-share-url-section {
    border-top: 1px solid rgba(52, 152, 219, 0.1);
    padding-top: 20px;
}

.crystal-share-url {
    background: #f8f9fa;
    padding: 12px 15px;
    border-radius: 8px;
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 15px;
    word-break: break-all;
    line-height: 1.4;
}

.crystal-share-copy {
    width: 100%;
    padding: 12px 20px;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.crystal-share-copy:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

@media (max-width: 1200px) {
    .crystal-article-layout {
        grid-template-columns: 1fr 280px;
        gap: 30px;
    }
    
    .crystal-article-wrapper {
        padding: 0 15px;
    }
}

@media (max-width: 1024px) {
    .crystal-article-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .crystal-article-sidebar {
        order: 1;
    }
    
    .crystal-sidebar-sticky {
        position: static;
        max-height: none;
        overflow-y: visible;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
        
    }
}

@media (max-width: 768px) {
    .crystal-article-container {
        padding: 10px 0 30px;
    }
    
    .crystal-article-wrapper {
        padding: 0 8px;
    }
    .crystal-breadcrumb {
        margin-bottom: 20px;
    }
    
    .crystal-breadcrumb-content {
        padding: 8px 12px;
        font-size: 12px;
        gap: 6px;
    }
    
    .crystal-breadcrumb-current {
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .crystal-article-card {
        border-radius: 15px;
        margin-bottom: 20px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    }
    
    .crystal-article-header {
        padding: 20px 15px 15px;
    }
    
    .crystal-article-category {
        padding: 6px 12px;
        font-size: 12px;
        margin-bottom: 15px;
    }
    
    .crystal-article-title {
        font-size: 20px;
        line-height: 1.4;
        margin-bottom: 15px;
    }
    
    .crystal-meta-group {
        gap: 12px;
        flex-wrap: wrap;
    }
    
    .crystal-meta-item {
        font-size: 12px;
        gap: 4px;
    }
    
    .crystal-meta-item i {
        font-size: 14px;
    }
    
    .crystal-article-content {
        padding: 20px 15px;
        font-size: 15px;
        line-height: 1.7;
    }
    
    .crystal-article-content h1 { font-size: 22px; margin: 20px 0 12px 0; }
    .crystal-article-content h2 { font-size: 20px; margin: 18px 0 10px 0; }
    .crystal-article-content h3 { font-size: 18px; margin: 16px 0 8px 0; }
    .crystal-article-content h4 { font-size: 16px; margin: 14px 0 8px 0; }
    .crystal-article-content h5 { font-size: 15px; margin: 12px 0 6px 0; }
    .crystal-article-content h6 { font-size: 14px; margin: 12px 0 6px 0; }
    
    .crystal-article-content p {
        margin: 12px 0;
    }
    
    .crystal-article-content img {
        margin: 15px 0;
        border-radius: 8px;
    }
    
    .crystal-article-content blockquote {
        padding: 12px 15px;
        margin: 15px 0;
        border-radius: 0 8px 8px 0;
        font-size: 14px;
    }
    
    .crystal-article-content pre {
        padding: 15px;
        margin: 15px 0;
        border-radius: 8px;
        font-size: 13px;
        overflow-x: auto;
    }
    
    .crystal-article-content ul,
    .crystal-article-content ol {
        padding-left: 20px;
        margin: 12px 0;
    }
    
    .crystal-article-footer {
        padding: 20px 15px;
    }
    
    .crystal-article-actions {
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 20px;
        justify-content: center;
    }
    
    .crystal-action-btn {
        padding: 8px 16px;
        font-size: 12px;
        border-radius: 20px;
        min-width: 80px;
        justify-content: center;
    }
    
    .crystal-action-btn i {
        font-size: 14px;
    }
    
    .crystal-article-info {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        text-align: center;
    }
    
    .crystal-update-time {
        font-size: 11px;
    }
    
    .crystal-section-header {
        padding: 15px 20px;
    }
    
    .crystal-section-title {
        font-size: 16px;
        gap: 8px;
    }
    
    .crystal-section-title i {
        font-size: 18px;
    }
    
    .crystal-related-grid {
        padding: 12px;
        gap: 10px;
    }
    
    .crystal-related-item {
        padding: 12px 15px;
        border-radius: 10px;
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    
    .crystal-related-content {
        width: 100%;
        margin-bottom: 8px;
    }
    
    .crystal-related-title {
        font-size: 14px;
        margin-bottom: 6px;
        line-height: 1.3;
    }
    
    .crystal-related-meta {
        font-size: 11px;
        gap: 10px;
    }
    
    .crystal-related-arrow {
        align-self: flex-end;
        margin-top: -20px;
    }
    
    .crystal-sidebar-sticky {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 15px;
    }
    
    .crystal-sidebar-card {
        border-radius: 12px;
    }
    
    .crystal-card-header {
        padding: 12px 15px;
    }
    
    .crystal-card-title {
        font-size: 14px;
        gap: 6px;
    }
    
    .crystal-card-title i {
        font-size: 16px;
    }
    
    .crystal-toc-content {
        padding: 10px 0;
        max-height: 200px;
    }
    
    .crystal-toc-link {
        padding: 6px 15px;
        font-size: 13px;
        line-height: 1.3;
    }
    
    .crystal-toc-level-2 .crystal-toc-link { padding-left: 25px; }
    .crystal-toc-level-3 .crystal-toc-link { padding-left: 35px; }
    .crystal-toc-level-4 .crystal-toc-link { padding-left: 45px; }
    .crystal-toc-level-5 .crystal-toc-link { padding-left: 55px; }
    .crystal-toc-level-6 .crystal-toc-link { padding-left: 65px; }
    
    .crystal-no-toc {
        padding: 20px 15px;
    }
    
    .crystal-no-toc i {
        font-size: 24px;
        margin-bottom: 8px;
    }
    
    .crystal-stats-content {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        padding: 15px;
    }
    
    .crystal-stat-number {
        font-size: 18px;
        margin-bottom: 3px;
    }
    
    .crystal-stat-label {
        font-size: 11px;
    }
    
    .crystal-nav-content {
        padding: 15px;
        gap: 10px;
    }
    
    .crystal-nav-item {
        padding: 12px 15px;
        border-radius: 10px;
    }
    
    .crystal-nav-direction {
        font-size: 11px;
        margin-bottom: 4px;
    }
    
    .crystal-nav-title {
        font-size: 13px;
        line-height: 1.3;
    }
    
    .crystal-comment-form {
        padding: 20px 15px;
    }
    
    .crystal-comment-textarea {
        min-height: 100px;
        padding: 12px 15px;
        font-size: 14px;
        border-radius: 10px;
    }
    
    .crystal-comment-submit {
        padding: 8px 20px;
        font-size: 13px;
        border-radius: 15px;
    }
    
    .crystal-comments-list {
        padding: 20px 15px;
    }
    
    .crystal-no-comments {
        padding: 30px 15px;
    }
    
    .crystal-no-comments i {
        font-size: 36px;
        margin-bottom: 10px;
    }
    
    .crystal-share-popup {
        width: 95%;
        max-width: 350px;
        border-radius: 15px;
    }
    
    .crystal-share-header {
        padding: 15px 20px;
    }
    
    .crystal-share-title {
        font-size: 16px;
    }
    
    .crystal-share-content {
        padding: 20px;
    }
    
    .crystal-share-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 20px;
    }
    
    .crystal-share-btn {
        padding: 15px 10px;
        border-radius: 10px;
    }
    
    .crystal-share-btn i {
        font-size: 20px;
    }
    
    .crystal-share-btn span {
        font-size: 12px;
    }
    
    .crystal-share-url {
        padding: 10px 12px;
        font-size: 12px;
        margin-bottom: 12px;
        border-radius: 6px;
    }
    
    .crystal-share-copy {
        padding: 10px 15px;
        font-size: 13px;
        border-radius: 6px;
    }
    
    .crystal-article-bg {
        display: none;
    }
}

@media (max-width: 480px) {
    .crystal-article-wrapper {
        padding: 0 5px;
    }
    
    .crystal-article-header {
        padding: 15px 12px;
    }
    
    .crystal-article-title {
        font-size: 18px;
    }
    
    .crystal-article-content {
        padding: 15px 12px;
        font-size: 14px;
    }
    
    .crystal-article-footer {
        padding: 15px 12px;
    }
    
    .crystal-breadcrumb-content {
        padding: 6px 10px;
        font-size: 11px;
    }
    
    .crystal-action-btn {
        padding: 6px 12px;
        font-size: 11px;
        min-width: 70px;
    }
    
    .crystal-related-grid,
    .crystal-nav-content,
    .crystal-stats-content {
        padding: 10px;
    }
    
    .crystal-share-buttons {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

@media (hover: none) and (pointer: coarse) {
    .crystal-action-btn,
    .crystal-related-item,
    .crystal-nav-item,
    .crystal-toc-link {
        transition: none;
    }
    
    .crystal-action-btn:active,
    .crystal-related-item:active,
    .crystal-nav-item:active {
        transform: scale(0.98);
    }
    
    .crystal-toc-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .crystal-action-btn {
        min-height: 44px;
    }
}

.crystal-sidebar-sticky::-webkit-scrollbar,
.crystal-toc-content::-webkit-scrollbar {
    width: 4px;
}

.crystal-sidebar-sticky::-webkit-scrollbar-track,
.crystal-toc-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 2px;
}

.crystal-sidebar-sticky::-webkit-scrollbar-thumb,
.crystal-toc-content::-webkit-scrollbar-thumb {
    background: #bdc3c7;
    border-radius: 2px;
}

.crystal-sidebar-sticky::-webkit-scrollbar-thumb:hover,
.crystal-toc-content::-webkit-scrollbar-thumb:hover {
    background: #95a5a6;
}
.crystal-article-main {
    min-height: 100vh;
}