/* ========================================
   炫酷效果增强样式 - Cool Effects
   ======================================== */

/* 1. 动态渐变背景动画 */
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 2. 霓虹发光效果 */
@keyframes neonGlow {
    0%, 100% {
        text-shadow:
            0 0 5px #667eea,
            0 0 10px #667eea,
            0 0 20px #667eea,
            0 0 40px #764ba2;
    }
    50% {
        text-shadow:
            0 0 2px #667eea,
            0 0 5px #667eea,
            0 0 10px #667eea,
            0 0 20px #764ba2;
    }
}

/* 3. 流光边框效果 */
@keyframes borderFlow {
    0% { background-position: 0% 0%; }
    100% { background-position: 200% 0%; }
}

/* 4. 呼吸灯效果 */
@keyframes breathe {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

/* 5. 悬浮上升动画 */
@keyframes floatUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 6. 脉冲光晕效果 */
@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(102, 126, 234, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0);
    }
}

/* 7. 旋转渐变边框 */
@keyframes rotateGradient {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 8. 打字机光标闪烁 */
@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ============ 导航栏增强 ============ */
.navbar {
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: rgba(47, 65, 84, 0.85) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(47, 65, 84, 0.95) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

[data-user-color-scheme="dark"] .navbar {
    background: rgba(31, 49, 68, 0.85) !important;
}

[data-user-color-scheme="dark"] .navbar.scrolled {
    background: rgba(31, 49, 68, 0.95) !important;
}

/* 导航栏菜单项悬停效果 */
.navbar .nav-item .nav-link {
    position: relative;
    transition: all 0.3s ease;
}

.navbar .nav-item .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar .nav-item .nav-link:hover::after {
    width: 100%;
}

/* ============ Banner 区域增强 ============ */
#banner {
    position: relative;
    overflow: hidden;
}

#banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.3) 100%);
    pointer-events: none;
    z-index: 1;
}

/* Banner 标题霓虹效果（已禁用，太刺眼） */
/*
.banner-content h1 {
    animation: neonGlow 3s ease-in-out infinite;
}
*/

/* 副标题打字机效果增强（已禁用，使用主题自带） */

/* ============ 文章卡片玻璃态效果 ============ */
.index-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* 移除卡片闪光效果 */

.index-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow:
        0 12px 28px rgba(102, 126, 234, 0.12),
        0 0 0 1px rgba(102, 126, 234, 0.08);
    background: rgba(255, 255, 255, 0.85);
}

[data-user-color-scheme="dark"] .index-card {
    background: rgba(37, 45, 56, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

[data-user-color-scheme="dark"] .index-card:hover {
    background: rgba(37, 45, 56, 0.85);
    box-shadow:
        0 12px 28px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(102, 126, 234, 0.15);
}

/* 卡片图片悬浮效果 */
.index-img {
    overflow: hidden;
    border-radius: 16px 16px 0 0;
}

.index-img img {
    transition: transform 0.4s ease;
}

.index-card:hover .index-img img {
    transform: scale(1.05);
}

/* ============ 主面板玻璃态 ============ */
#board {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

[data-user-color-scheme="dark"] #board {
    background: rgba(37, 45, 56, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ============ 按钮炫酷效果 ============ */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    border-radius: 8px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

/* ============ 标签云炫彩效果 ============ */
.tag-cloud a {
    display: inline-block;
    padding: 6px 16px;
    margin: 4px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
    position: relative;
}

/* 移除标签闪光效果 */

.tag-cloud a:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white !important;
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.25);
}

/* ============ 滚动进度条彩虹效果 ============ */
#nprogress .bar {
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #667eea) !important;
    background-size: 300% 100% !important;
    animation: borderFlow 2s linear infinite !important;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

/* ============ 返回顶部按钮美化 ============ */
#scroll-top-button {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

#scroll-top-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

/* ============ 代码块复制按钮美化 ============ */
.highlight-wrapper .copy-btn {
    background: linear-gradient(135deg, #667eea, #764ba2) !important;
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 12px;
    transition: all 0.3s ease;
}

.highlight-wrapper .copy-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* ============ 侧边栏目录美化 ============ */
.toc .toc-item a {
    position: relative;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.toc .toc-item a:hover {
    color: #667eea !important;
    border-left-color: #667eea;
    background: rgba(102, 126, 234, 0.1);
    padding-left: 10px;
}

.toc .toc-item.active > a {
    color: #667eea !important;
    border-left-color: #667eea;
    font-weight: 600;
}

/* ============ 分页按钮美化 ============ */
.pagination .page-link {
    border-radius: 10px;
    margin: 0 4px;
    transition: all 0.3s ease;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.pagination .page-link:hover {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* ============ 评论区域美化 ============ */
#comments {
    background: rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    padding: 20px;
}

[data-user-color-scheme="dark"] #comments {
    background: rgba(37, 45, 56, 0.5);
}

/* ============ 页脚美化 ============ */
.footer {
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.05));
}

/* ============ 搜索框美化 ============ */
.search-dialog .form-control {
    border-radius: 25px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.search-dialog .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ============ 滚动条美化 ============ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2, #667eea);
}

[data-user-color-scheme="dark"] ::-webkit-scrollbar-track {
    background: #1a1a2e;
}

/* ============ 文字选中效果增强 ============ */
::selection {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

::-moz-selection {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

/* ============ 链接悬停效果 ============ */
a {
    position: relative;
    transition: all 0.3s ease;
}

.post-content a:not(.btn):hover {
    color: #667eea !important;
    text-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

/* ============ 加载动画 ============ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============ 闪烁星星背景效果 ============ */
.stars-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
    animation: twinkle var(--duration) ease-in-out infinite;
    opacity: 0;
}

@keyframes twinkle {
    0%, 100% { opacity: 0; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.5); }
}

/* ============ 社交图标悬停效果 ============ */
.social-icon {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-icon:hover {
    transform: translateY(-5px) rotate(10deg);
    filter: drop-shadow(0 8px 15px rgba(102, 126, 234, 0.4));
}

/* ============ 时间轴样式（如归档页） ============ */
.timeline-item {
    position: relative;
    padding-left: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #667eea, #764ba2);
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: -4px;
    top: 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

/* ============ 响应式适配 ============ */
@media (max-width: 768px) {
    .index-card:hover {
        transform: translateY(-4px) scale(1.01);
    }

    .tag-cloud a:hover {
        transform: translateY(-2px);
    }
}

/* ============ 暗色模式专属效果 ============ */
[data-user-color-scheme="dark"] .btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

[data-user-color-scheme="dark"] .tag-cloud a {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
}

/* ============ 彩虹文字效果 ============ */
.rainbow-text {
    background: linear-gradient(
        90deg,
        #667eea,
        #764ba2,
        #f093fb,
        #667eea
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: borderFlow 3s linear infinite;
}

/* ============ 波纹点击效果 ============ */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ============ 霓虹卡片效果 ============ */
.neon-card {
    border: 2px solid transparent;
    background: linear-gradient(rgba(255,255,255,0.1), rgba(255,255,255,0.1)) padding-box,
                linear-gradient(135deg, #667eea, #764ba2) border-box;
    animation: pulseGlow 2s ease-in-out infinite;
}

/* ============ 文章标题悬停效果 ============ */
.post-title a:hover {
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: borderFlow 2s linear infinite;
}

/* ============ 淡入动画延迟 ============ */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }