/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Noto Serif SC", "Source Han Serif CN", "Microsoft Yahei", sans-serif;
}

/* 隐藏所有元素的滚动条但保留滚动功能 */
*::-webkit-scrollbar {
    display: none;
}
* {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

body {
    background-color: #f2ece0;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 0;
    overflow-x: hidden;
    scrollbar-gutter: stable;
}

body.modal-open {
    overflow: hidden;
}

/* Container Base */
.container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    gap: 2rem;
    margin-top: 6rem;
    padding: 0 1rem;
    padding-bottom: 4rem;
}

/* Header Styles */
.page-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: center;
    padding-top: 2rem;
    background-color: #f2ece0;
    padding-bottom: 1rem;
}

.header-content {
    width: 100%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 1rem;
}

.menu-btn {
    width: 30px;
    height: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    cursor: pointer;
    transition: transform 0.3s ease;
    z-index: 2000;
}

.menu-btn.active {
    transform: rotate(90deg);
}

.menu-btn span {
    width: 100%;
    height: 4px;
    background-color: #17223F;
}

/* Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    max-height: 100vh;
    max-height: 100dvh;
    background-color: rgba(242, 236, 224, 0.98);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.menu-nav {
    list-style: none;
    text-align: center;
    padding: 0;
}

.menu-nav li {
    margin: 2rem 0;
}

.menu-nav a {
    font-size: 2rem;
    font-weight: 900;
    color: #17223F;
    text-decoration: none;
    position: relative;
    transition: color 0.3s;
}

.menu-nav a:hover {
    color: #447593;
}

/* Header Info */
.header-info {
    text-align: right;
}

.header-info a {
    text-decoration: none;
    display: block;
    transition: opacity 0.3s ease;
}

.header-info a:hover {
    opacity: 0.7;
}

.header-info h1 {
    font-size: 1.4rem;
    margin-top: -0.2rem;
    font-weight: 1000;
    color: #17223F;
}

.header-info p {
    font-size: 0.74rem;
    font-weight: 900;
    margin-top: -0.3rem;
    color: #447593;
}

/* Copyright */
.copyright {
    position: fixed;
    bottom: 0;
    left: 0;
    margin: 0;
    padding: 1rem 0;
    font-size: 0.8rem;
    color: #17223F;
    text-align: center;
    width: 100%;
    font-weight: 500;
    background-color: #f2ece0;
    z-index: 1000;
}

/* Theme Toggle Styles */
.theme-toggle-container {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

.theme-toggle-btn {
    background: none;
    border: 2px solid #17223F;
    border-radius: 20px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 1rem;
    color: #17223F;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.theme-toggle-btn:hover {
    background-color: #17223F;
    color: #f2ece0;
}

.theme-icon {
    display: none;
}

/* Default light mode shows sun */
body:not(.dark-mode) .light-icon {
    display: inline-block;
}

/* Dark mode shows moon */
body.dark-mode .dark-icon {
    display: inline-block;
}

/* Dark Mode Variables & Styles */
body.dark-mode {
    background-color: #1a1a1a;
    color: #DFDFD9;
}

body.dark-mode .page-header,
body.dark-mode .copyright {
    background-color: #1a1a1a;
    color: #DFDFD9;
}

body.dark-mode .header-info a {
    color: #DFDFD9;
}

body.dark-mode .header-info h1 {
    color: #DFDFD9;
}

body.dark-mode .header-info p {
    color: #aaa;
}

body.dark-mode .menu-btn span {
    background-color: #DFDFD9;
}

body.dark-mode .menu-overlay {
    background-color: rgba(26, 26, 26, 0.98);
}

body.dark-mode .menu-nav a {
    color: #DFDFD9;
}

body.dark-mode .menu-nav a:hover {
    color: #4a90e2;
}

body.dark-mode .theme-toggle-btn {
    border-color: #DFDFD9;
    color: #DFDFD9;
}

body.dark-mode .theme-toggle-btn:hover {
    background-color: #DFDFD9;
    color: #1a1a1a;
}

/* Article specific dark mode */
body.dark-mode .article-content,
body.dark-mode .article-sidebar-left {
    background-color: #1a1a1a;
    color: #DFDFD9;
}

body.dark-mode .article-content {
    border-left-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .article-title,
body.dark-mode .article-body h1,
body.dark-mode .article-body h2,
body.dark-mode .article-body h3 {
    color: #DFDFD9;
}

body.dark-mode .article-meta {
    color: #aaa;
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

body.dark-mode .category-header,
body.dark-mode .category-sub-list li a {
    color: #DFDFD9;
}

body.dark-mode .category-sub-list li a:hover,
body.dark-mode .category-sub-list li a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* Dark Mode Search Box */
body.dark-mode #wiki-search-input,
body.dark-mode #wiki-search-input-mobile {
    background-color: #333;
    color: #DFDFD9;
    border-color: #444;
}

body.dark-mode #wiki-search-input:focus,
body.dark-mode #wiki-search-input-mobile:focus {
    background-color: #1a1a1a;
    border-color: #666;
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.2);
}

body.dark-mode #wiki-search-results,
body.dark-mode #wiki-search-results-mobile {
    background: #2a2a2a;
    border: 1px solid #444;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

body.dark-mode .search-result-item {
    border-bottom: 1px solid #444;
}

body.dark-mode .search-result-item a {
    color: #DFDFD9;
}

body.dark-mode .search-result-item a:hover {
    background-color: #333;
}

body.dark-mode .search-result-title {
    color: #DFDFD9;
}

body.dark-mode .search-result-snippet {
    color: #aaa;
}

body.dark-mode .search-highlight {
    background-color: rgba(255, 243, 205, 0.2);
    color: #ffdf80;
}

body.dark-mode .search-loading, 
body.dark-mode .search-error,
body.dark-mode .search-no-results {
    color: #aaa;
}

body.dark-mode .article-hero .hero-overlay {
    background: linear-gradient(to top, rgba(26, 26, 26, 1) 0%, rgba(26, 26, 26, 0.9) 30%, rgba(26, 26, 26, 0.6) 60%, rgba(26, 26, 26, 0) 100%);
    color: #DFDFD9;
}

body.dark-mode .article-hero .article-title {
    color: #DFDFD9;
}

body.dark-mode .article-hero .article-meta {
    color: #aaa;
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

/* Dark Mode Tables */
body.dark-mode .article-body table th,
body.dark-mode .article-body table td {
    border-color: rgba(255, 255, 255, 0.15);
    color: #DFDFD9;
}

body.dark-mode .article-body table th {
    border-bottom-color: rgba(255, 255, 255, 0.3);
    color: #DFDFD9;
}

/* Dark Mode Details/Summary */
body.dark-mode .article-body details {
    border-color: rgba(255, 255, 255, 0.15);
    color: #ccc;
}

body.dark-mode .article-body details summary {
    color: #DFDFD9;
}

body.dark-mode .article-body details[open] summary {
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

body.dark-mode .article-body details .details-content {
    color: #ccc;
}

/* Index specific dark mode */
body.dark-mode .intro-box {
    color: #DFDFD9;
}

/* Mobile Sidebar Dark Mode */
body.dark-mode .mobile-sidebar-toggle {
    color: #DFDFD9;
}

body.dark-mode .mobile-sidebar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Right Sidebar TOC Dark Mode */
body.dark-mode .toc-list a {
    color: #aaa;
}

body.dark-mode .toc-list a:hover,
body.dark-mode .toc-list a.active {
    color: #DFDFD9;
}

@media (max-width: 1200px) {
    body.dark-mode .sidebar-inner {
        background-color: rgba(26, 26, 26, 0.98);
        box-shadow: 0 0 10px rgba(0,0,0,0.5);
    }
}

@media (max-width: 1200px) and (min-width: 901px) {
    /* Tablet: 保留汉堡菜单，收紧页眉间距与字号 */
    .page-header {
        padding: 1rem 1.5rem;
    }
    .header-content {
        padding: 0 0.5rem;
        align-items: center;
    }
    .menu-btn {
        display: flex;
    }
    .header-info h1 {
        font-size: 1.3rem;
    }
    .header-info p {
        font-size: 0.7rem;
    }
    .menu-nav a {
        font-size: 1.8rem;
    }
}

@media (max-width: 900px) {
    /* Mobile: 更紧凑的页眉与菜单 */
    .page-header {
        padding: 1rem;
    }
    .header-content {
        padding: 0;
        align-items: center;
    }
    .menu-btn {
        display: flex;
    }
    .header-info h1 {
        font-size: 1.2rem;
    }
    .header-info p {
        display: none;
    }
    .menu-nav a {
        font-size: 1.6rem;
    }
}

@media (min-width: 1201px) {
    body.dark-mode .sidebar-inner {
        background-color: transparent;
        box-shadow: none;
    }
}

body.dark-mode .mobile-sidebar-close {
    color: #aaa;
}

body.dark-mode .mobile-sidebar-close:hover {
    color: #DFDFD9;
}

/* No Cover Article Header Dark Mode */
body.dark-mode .article-header-no-cover .article-title {
    color: #DFDFD9;
}

body.dark-mode .article-header-no-cover .article-meta {
    color: #aaa;
    border-bottom-color: rgba(223, 223, 217, 0.2);
}

/* Responsive Styles */
@media (max-width: 1200px) {
    .header-content {
        padding: 0;
    }
}

@media (max-width: 800px) {
    .container {
        grid-template-columns: 1fr !important;
        height: auto;
        max-height: none;
        overflow: visible;
        gap: 1.2rem;
        padding-bottom: 1.2rem;
        margin-top: 0;
    }

    body {
        padding: 4rem 1rem 1rem 1rem;
        height: auto;
        display: block;
    }
    
    .page-header {
        padding: 1rem;
    }
    
    .header-info h1, .header-info p {
        margin-right: 0;
    }

    .copyright {
        position: static;
        margin-top: 2rem;
    }
}