/* 全局样式 */
:root {
    /* 默认主题 - 樱花主题 */
    --primary-color: #ff7eb9;
    --secondary-color: #ff65a3;
    --text-color: #4e3f5a;
    --bg-color: #ffecf5;
    --card-bg: #fff5f9;
    --shadow-color: rgba(255, 126, 185, 0.15);
    --box-shadow: 10px 10px 20px rgba(255, 126, 185, 0.15),
                 -10px -10px 20px rgba(255, 255, 255, 0.8);
    --inner-shadow: inset 5px 5px 10px rgba(255, 126, 185, 0.1),
                   inset -5px -5px 10px rgba(255, 255, 255, 0.8);
    --border-radius: 20px;
    --transition: all 0.3s ease;
    --animation-duration: 0.5s;
}

/* 平滑过渡 */
*:not(#theme-effects *) {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
    animation: fadeInUp var(--animation-duration) ease forwards;
}

.forum-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.forum-title:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: pulse 2s infinite;
}

.forum-description {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

/* 分类导航 */
.categories {
    margin-bottom: 2rem;
    position: relative;
    z-index: 10;
    animation: fadeInUp var(--animation-duration) ease 0.1s forwards;
    opacity: 0;
}

.categories ul {
    display: flex;
    list-style: none;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    flex-wrap: wrap;
}

.categories li {
    margin-right: 1rem;
    margin-bottom: 0.5rem;
}

.categories a {
    display: block;
    padding: 0.5rem 1rem;
    background-color: var(--card-bg);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.categories a:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.categories a:hover:before {
    width: 100%;
}

.categories a:hover,
.categories a.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* 帖子列表 */
.post-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    animation: fadeInUp var(--animation-duration) ease 0.2s forwards;
    opacity: 0;
}

.post-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    border-top: 4px solid var(--primary-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.post-title {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
    border-bottom: 1px solid rgba(0,0,0,0.1);
    padding-bottom: 0.5rem;
}

.post-card .post-category {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 15px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    position: absolute;
    top: -12px;
    right: 1.5rem;
    font-weight: 500;
}

.post-content-preview {
    margin-bottom: 1rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    padding: 0.5rem;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 10px;
    flex-grow: 1;
    animation: contentFadeIn 0.5s ease forwards;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: #666;
    margin-top: 0.5rem;
    border-top: 1px solid rgba(0,0,0,0.1);
    padding-top: 0.5rem;
}

/* 帖子详情 */
.post-detail {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    border-top: 6px solid var(--primary-color);
    animation: fadeIn var(--animation-duration) ease forwards;
}

.post-detail-header {
    margin-bottom: 1.5rem;
    border-bottom: 2px solid rgba(0,0,0,0.1);
    padding-bottom: 1rem;
}

.post-detail-title {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.post-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.post-detail-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.post-author {
    font-weight: bold;
    color: var(--primary-color);
    background-color: rgba(0,0,0,0.05);
    padding: 0.3rem 0.8rem;
    border-radius: 1rem;
}

.post-author-small {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.post-detail-meta .post-category {
    font-weight: 500;
    padding: 0.2rem 0.6rem;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.9rem;
}

.post-date {
    color: #888;
    font-style: italic;
}

.post-detail-content {
    margin: 2rem 0;
    line-height: 1.8;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    border: 1px solid rgba(0,0,0,0.05);
    animation: contentFadeIn 0.5s ease 0.2s forwards;
    opacity: 0;
}

.replies-section {
    margin-top: 2rem;
    border-top: 2px solid rgba(0,0,0,0.1);
    padding-top: 1.5rem;
    animation: fadeInUp var(--animation-duration) ease 0.3s forwards;
    opacity: 0;
}

.replies-header {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    position: relative;
    padding-left: 1rem;
}

.replies-header::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.15em;
    height: 1.2em;
    width: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.reply-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.reply-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    border-left: 4px solid var(--secondary-color);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: calc(var(--animation-index, 0) * 0.1s);
}

.reply-card::before {
    content: "💬";
    position: absolute;
    left: -15px;
    top: -15px;
    background: var(--card-bg);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    font-size: 16px;
}

.reply-author {
    font-weight: bold;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
    border-bottom: 1px dashed rgba(0,0,0,0.1);
    padding-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.reply-content {
    margin: 1rem 0;
    padding: 0.8rem;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 10px;
}

.reply-meta {
    font-size: 0.9rem;
    color: #666;
    text-align: right;
    border-top: 1px dashed rgba(0,0,0,0.1);
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* 辅助类 */
.hidden {
    display: none !important;
}

/* 悬浮操作按钮 */
.floating-actions {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 10;
    animation: floating 4s ease infinite;
}

.round {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.round:hover {
    transform: scale(1.1);
}

.round:active {
    transform: scale(0.95);
}

/* 主题选择器 */
.theme-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin: 1rem auto 0;
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    box-shadow: var(--box-shadow);
    max-width: 450px;
    position: relative;
    z-index: 10;
}

.theme-btn {
    background-color: var(--card-bg);
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    cursor: pointer;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
    min-width: 80px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.theme-btn:hover {
    transform: scale(1.05);
}

.theme-btn.active {
    box-shadow: 0 0 10px var(--primary-color);
    background-color: var(--primary-color);
    color: white;
}

/* 消息提示 */
.toast {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    z-index: 100;
    transition: var(--transition);
    animation: slideInRight 0.3s ease forwards;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    width: 90%;
    max-width: 500px;
}

.seed-container {
    background-color: #f5f5f5;
    border-radius: 10px;
    padding: 1rem;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.warning {
    color: #e74c3c;
    font-weight: bold;
    margin: 1rem 0;
}

/* 主题特效 */
.theme-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
    will-change: transform;
}

/* 空消息样式 */
.empty-message {
    text-align: center;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    grid-column: 1 / -1;
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* 主题过渡遮罩 */
#theme-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0);
    z-index: 10000;
    pointer-events: none;
    transition: background-color 0.5s ease;
}

/* 媒体查询 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .post-list {
        grid-template-columns: 1fr;
    }
    
    .categories ul {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 1rem;
    }
    
    .theme-selector {
        max-width: 100%;
        padding: 0.3rem;
        gap: 0.3rem;
    }
    
    .theme-btn {
        font-size: 0.9rem;
        padding: 0.4rem 0.6rem;
        min-width: 70px;
        margin-bottom: 0.3rem;
    }
    
    .forum-title {
        font-size: 2rem;
    }
    
    .forum-description {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
}

/* 无回复提示 */
.no-replies {
    padding: 1rem;
    background-color: rgba(0,0,0,0.03);
    border-radius: 10px;
    text-align: center;
    color: #888;
    font-style: italic;
}

/* 验证种子后的样式 */
.valid-seed {
    border: 1px solid var(--primary-color) !important;
    background-color: rgba(var(--primary-color-rgb), 0.05) !important;
}

.locked-input {
    background-color: rgba(0,0,0,0.03) !important;
    border-color: #ccc !important;
    color: #666 !important;
}

/* 链式种子样式 */
.seed-container code[data-ischain="true"] {
    background-color: #ffecaa;
    color: #d45500;
    font-weight: bold;
    border-left: 4px solid #ff7800;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 120, 0, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 120, 0, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 120, 0, 0);
    }
}

/* 网站脚标 */
.site-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0,0,0,0.1);
    text-align: center;
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9rem;
    animation: fadeInUp var(--animation-duration) ease forwards;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-text {
    max-width: 600px;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.footer-copyright {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 1rem;
}

/* 新增：页面入场动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translate3d(50px, 0, 0);
        opacity: 0;
    }
    to {
        transform: translate3d(0, 0, 0);
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes floating {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-8px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 新增：页面入场动画 */
.header {
    animation: fadeInUp var(--animation-duration) ease forwards;
}

.categories {
    animation: fadeInUp var(--animation-duration) ease 0.1s forwards;
    opacity: 0;
}

.post-list {
    animation: fadeInUp var(--animation-duration) ease 0.2s forwards;
    opacity: 0;
}

.post-detail {
    animation: fadeIn var(--animation-duration) ease forwards;
}

.replies-section {
    animation: fadeInUp var(--animation-duration) ease 0.3s forwards;
    opacity: 0;
}

/* 悬浮动画效果 */
.post-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px var(--shadow-color);
}

/* 按钮动画效果 */
.round {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.round:hover {
    transform: scale(1.1);
}

.round:active {
    transform: scale(0.95);
}

/* 分类标签动画 */
.categories a {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.categories a:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.categories a:hover:before {
    width: 100%;
}

.categories a:hover,
.categories a.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* 标题动画效果 */
.forum-title {
    position: relative;
    display: inline-block;
}

.forum-title:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: pulse 2s infinite;
}

/* 表单元素动画 */
.form-group input,
.form-group textarea,
.form-group select {
    transition: border 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--shadow-color);
    animation: pulse 1s;
}

/* Toast消息动画 */
.toast {
    animation: slideInRight 0.3s ease forwards;
}

/* 主题切换按钮动画 */
.theme-btn {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.theme-btn:hover {
    transform: scale(1.1);
}

.theme-btn.active {
    animation: pulse 2s infinite;
}

/* 悬浮操作按钮动画 */
.floating-actions {
    animation: floating 4s ease infinite;
}

/* 页面底部渐入效果 */
.site-footer {
    animation: fadeInUp var(--animation-duration) ease forwards;
}

/* 载入骨架屏动画 */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--card-bg) 25%, var(--bg-color) 50%, var(--card-bg) 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
    border-radius: var(--border-radius);
}

/* 新增：内容淡入动画 */
@keyframes contentFadeIn {
    from {
        opacity: 0;
        transform: scale(0.98);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.post-content-preview {
    animation: contentFadeIn 0.5s ease forwards;
}

.post-detail-content {
    animation: contentFadeIn 0.5s ease 0.2s forwards;
    opacity: 0;
}

/* 回复动画效果 */
.reply-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: calc(var(--animation-index, 0) * 0.1s);
}

.reply-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px var(--shadow-color);
}

/* 新增：页面切换时的转场动画 */
.page-transition-enter {
    opacity: 0;
    transform: translateY(20px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-transition-exit {
    opacity: 1;
    transform: translateY(0);
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* 新增：页面滚动动画类 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 页面容器的动画效果 */
.content > div {
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.content > div.hidden {
    opacity: 0;
    transform: translateY(30px);
    position: absolute;
    pointer-events: none;
}

.content > div:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
    animation: pageEnter 0.35s ease forwards;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 表单淡入动画 */
.reply-form {
    animation: formSlideIn 0.4s ease forwards;
}

@keyframes formSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 按钮点击动画 */
.neu-button {
    position: relative;
    overflow: hidden;
}

.neu-button:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.neu-button:focus:not(:active)::after {
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    20% {
        transform: scale(25, 25);
        opacity: 0.3;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

/* 回复按钮浮动动画 */
#show-reply-form {
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#show-reply-form:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px var(--shadow-color);
}

#show-reply-form:active {
    transform: translateY(0);
}

/* 内容容器样式调整，确保动画平滑 */
.content {
    position: relative;
    min-height: 300px;
}

/* 添加按钮加载动画 */
.submit-loading {
    position: relative;
    display: inline-block;
}

.submit-loading::after {
    content: '...';
    position: absolute;
    animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
    0% { content: '.'; }
    33% { content: '..'; }
    66% { content: '...'; }
    100% { content: '.'; }
}

/* 表单提交按钮特效 */
.form-actions button[type="submit"] {
    position: relative;
    overflow: hidden;
}

.form-actions button[type="submit"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.5s;
}

.form-actions button[type="submit"]:hover::before {
    left: 100%;
}

.form-actions button[type="submit"]:active {
    transform: scale(0.95);
}

.form-actions button[type="submit"]:disabled {
    opacity: 0.7;
    cursor: wait;
}

/* 回复表单区域动画 */
.reply-form .neu-card {
    transform-origin: top center;
    animation: expandForm 0.4s ease-out;
}

@keyframes expandForm {
    from {
        opacity: 0;
        transform: scaleY(0.8);
    }
    to {
        opacity: 1;
        transform: scaleY(1);
    }
}

/* 自动滚动指示器 */
.auto-scroll-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow-color);
    z-index: 100;
    animation: bounce 2s infinite;
}

.auto-scroll-indicator.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 模态框动画样式 */
.modal-content {
    transform-origin: center;
}

/* 回复成功效果 */
.reply-success-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    box-shadow: 0 5px 25px var(--shadow-color);
    opacity: 0;
    z-index: 2000;
    pointer-events: none;
}

.reply-success-indicator.show {
    animation: successPop 1.5s ease forwards;
}

@keyframes successPop {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
    20% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
    30% {
        transform: translate(-50%, -50%) scale(1);
    }
    70% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

/* 新增：主题切换过渡动画 */
.theme-transition {
    transition: color 0.3s ease,
                background-color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease,
                transform 0.3s ease !important;
}

/* 删除过去添加给所有元素的过渡动画，但保留重要的动画效果 */
*:not(.theme-transition):not(.post-card):not(.round):not(.categories a):not(.theme-btn):not(.reply-card):not(.form-group input):not(.form-group textarea):not(.form-group select):not(.post-content-preview):not(.post-detail-content):not(.reply-card):not(.page-transition-enter):not(.page-transition-exit):not(.scroll-animate) {
    transition-property: none !important;
}

/* 确保所有动画类型的元素不受主题切换动画影响 */
.animated, [class*="animate__"], [class*="animation-"] {
    transition-property: inherit !important;
}

/* 保留非主题相关动画 */
.post-card:hover,
.round:hover,
.round:active,
.categories a:hover,
.theme-btn:hover,
.reply-card:hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

/* 时间显示样式 */
.post-date, .reply-date {
    color: var(--text-secondary);
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.2em 0.5em;
    border-radius: 12px;
}

.post-date:hover, .reply-date:hover {
    color: var(--primary-color);
    background-color: rgba(var(--primary-color-rgb, 255, 126, 185), 0.1);
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb, 255, 126, 185), 0.15);
}

.post-date::after, .reply-date::after {
    content: "🕒";
    font-size: 0.9em;
    margin-left: 0.3em;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.post-date:hover::after, .reply-date:hover::after {
    opacity: 0.7;
}