/* Global Styles */
:root {
    /* Colors */
    --primary-bg: #FFFFFF;
    --secondary-text: #0D0C22;
    --accent: #F6B313;
    --accent-hover: #F8C753;
    --login-bg: #0D0C22;
    --login-bg-hover: #333333;
    --page-bg: #F8F9FA;
    --card-bg: #F3F3F4;
    --search-border: #F3F3F4;
    --search-text: #333333;
    --footer-bg: #f8f8f8;
    --footer-text: #555;

    /* Shadows */
    --card-shadow: rgba(0, 0, 0, 0.04);
    --card-shadow-2: 0 4px 12px rgba(0, 0, 0, 0.05);
    --pulse-shadow: rgba(246, 179, 19, 0.7);
    --pulse-shadow-end: rgba(246, 179, 19, 0);

    /* Sizing & Radius */
    --card-radius: 12px;
    --button-radius: 25px;
    --search-radius: 30px;
    --logo-height: 40px;
    --search-btn-size: 40px;

    /* Fonts */
    --font-family-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    --font-size-base: 1rem;
    --font-weight-bold: 700;
    /* 添加缺失的CSS变量 */
    --grid-gap: 30px;
    --filter-btn-gap: 1.5rem;
    --card-border-radius: 16px;
    --pagination-padding: 3rem 0;
}

/* 合并重复样式 */
.author-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    margin-right: 8px;
    vertical-align: middle;
}

@media (max-width: 1200px) {
    .shots-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 900px) {
    .shots-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .shots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 400px) {
    .shots-grid {
        grid-template-columns: 1fr;
    }
}


body {
    margin: 0;
    padding: 0;
    padding-top: 80px; /* 为固定导航栏预留空间 */
    font-family: var(--font-family-main);
    background: var(--page-bg);
    color: var(--secondary-text);
    overflow-x: hidden; /* 防止水平滚动 */
    word-wrap: break-word; /* 长文本自动换行 */
}

/* 模态框打开时防止背景滚动 */
body.modal-open {
    overflow: hidden;
    padding-right: var(--scrollbar-width, 0);
}

/* 防止模态框打开时影响固定定位元素 - 精确补偿登录按钮位置 */
body.modal-open .site-nav-actions-container {
    margin-right: var(--scrollbar-width, 0);
}

main {
    padding: 1rem 4rem;
    max-width: 1600px;
    margin: 0 auto;
    overflow-x: hidden; /* 防止主内容区域水平溢出 */
    box-sizing: border-box;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Header/Nav Styles */
.site-nav {
    background-color: var(--primary-bg);
    padding: 1rem 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.site-nav-main {
    width: 100%;
    max-width: 1600px;
    display: flex;
    align-items: center;
}

.site-logo-link {
    display: flex;
    align-items: center;
    margin-right: 30px;
    flex-shrink: 0; /* Prevent shrinking */
}

.site-logo {
    height: var(--logo-height);
    width: auto;
}

.site-nav-search__wrapper {
    display: flex;
    align-items: center;
    background-color: var(--card-bg);
    border: 0.5px solid var(--search-border);
    border-radius: var(--search-radius);
    padding: 0.5rem 0.5rem 0.5rem 1.5rem;
    max-width: 450px;
    flex: 1;
    transition: background-color 0.3s, border-color 0.3s;
}

.site-nav-search__wrapper:hover,
.site-nav-search__wrapper:focus-within {
    background-color: var(--primary-bg);
    border-color: var(--accent);
}

.site-nav-search__input {
    flex-grow: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: var(--font-size-base);
    color: var(--search-text);
}

.site-nav-search__btn {
    background-color: var(--accent);
    border: none;
    border-radius: 50%;
    width: var(--search-btn-size);
    height: var(--search-btn-size);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    animation: pulse 2s infinite;
}

.site-nav-search__btn:hover {
    background-color: var(--accent-hover);
    transform: scale(1.1);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--pulse-shadow);
  }
  70% {
    box-shadow: 0 0 0 10px var(--pulse-shadow-end);
  }
  100% {
    box-shadow: 0 0 0 0 var(--pulse-shadow-end);
  }
}

.site-nav-actions-container {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-shrink: 0; /* Prevent shrinking */
    margin-left: auto; /* Push to the right */

}

/* 统一 Login/Logout 按钮的尺寸与字体样式（桌面端） */
.site-nav-actions-container .site-nav-login,
.site-nav-actions-container .logout-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    font-size: 0.9rem;
    font-weight: var(--font-weight-bold);
    line-height: 1;
    border-radius: var(--button-radius);
}

/* 统一 Login/Logout 按钮的尺寸与字体样式 */
.site-nav-actions-container .site-nav-login,
.site-nav-actions-container .logout-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    font-size: 0.9rem;
    font-weight: var(--font-weight-bold);
    line-height: 1;
    border-radius: var(--button-radius);
}

.site-nav-login {
    padding: 0.6rem 1.2rem;
    border-radius: var(--button-radius);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    background-color: var(--login-bg);
    color: white;
}

/* 用户菜单样式 */
.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-name {
    color: var(--secondary-text);
    font-weight: 500;
    font-size: 0.9rem;
}

.logout-btn {
    background-color: var(--accent);
    color: var(--primary-bg);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

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


/* Footer Styles */
footer {
    background: var(--footer-bg);
    padding: 2rem 1rem;
    text-align: center;
    color: var(--footer-text);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

/* 错误提示动画 */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    body {
        padding-top: 120px;
    }
    
    main {
        padding: 0.5rem;
        margin-top: 0;
        width: 100vw;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    /* 确保所有容器不超出屏幕宽度 */
     * {
         max-width: 100vw;
         box-sizing: border-box;
     }
     
     .site-nav { padding: 1rem; }
    
    .site-nav-main {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .site-nav-search__wrapper {
        display: flex;
        flex: 1;
        min-width: 200px;
        max-width: none;
        order: 2;
    }
    
    .site-nav-actions-container {
        display: flex;
        flex-shrink: 0;
        order: 1;
        margin-left: auto;
        margin-right: 0;
    }
    
    /* 移动端用户菜单样式 - 隐藏用户名 */
.user-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.user-name {
    display: none;
}

.logout-btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
}
    
    /* 统一移动端 Login/Logout 按钮样式（覆盖上面的单独设置） */
    .site-nav-actions-container .site-nav-login,
    .site-nav-actions-container .logout-btn {
        min-height: 36px;
        padding: 0 14px;
        font-size: 0.85rem;
    }
    
    /* 移动端错误提示适配 */
    .error-toast {
        right: 10px !important;
        left: 10px !important;
        max-width: none !important;
    }
}

/* 文章列表相关样式 */
.article-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 8px;
}

.article-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary-text);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-time {
    font-size: 0.75rem;
    color: #888;
    opacity: 0.8;
}

/* 空状态样式 */
.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: #666;
}

.empty-icon {
    margin-bottom: 1.5rem;
    opacity: 0.6;
}

.empty-state h3 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #999;
}

.empty-state p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.5;
    max-width: 400px;
}

.empty-state a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.empty-state a:hover {
    text-decoration: underline;
}

/* 错误状态样式 */
.error-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: #666;
}

.error-icon {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.error-state h3 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #ff6b6b;
}

.error-state p {
    margin: 0 0 2rem 0;
    font-size: 1rem;
    line-height: 1.5;
    max-width: 400px;
}

.retry-btn {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--button-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

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

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

/* 响应式适配 */
@media (max-width: 768px) {
    .empty-state,
    .error-state {
        padding: 3rem 1rem;
    }
    
    .empty-state h3,
    .error-state h3 {
        font-size: 1.25rem;
    }
    
    .empty-state p,
    .error-state p {
        font-size: 0.9rem;
    }
}