/* style.css */
@import 'fonts.css';

/* === 色彩变量定义 === */
:root {
    /* MMP 风格核心色彩 */
    --mmp-black: hsl(0, 0%, 5%); /* 极深的黑色 */
    --mmp-dark-grey: hsl(0, 0%, 10%); /* 稍亮的黑 */
    --mmp-light-grey: hsl(0, 0%, 15%); /* 更亮的黑 */

    --mmp-accent-blue: hsl(190, 100%, 60%); /* 亮蓝色 */
    --mmp-accent-pink: hsl(330, 100%, 60%); /* 亮粉色 */
    --mmp-accent-orange: hsl(30, 100%, 60%); /* 亮橙色 */
    --mmp-accent-green: hsl(140, 100%, 60%); /* 亮绿色 */

    --mmp-text-primary: hsl(0, 0%, 95%); /* 接近白色的文字 */
    --mmp-text-secondary: hsl(0, 0%, 70%); /* 中灰文字 */

    /* 亮色模式（默认） */
    --bg-primary: hsl(0, 0%, 98%);
    --bg-secondary: hsl(0, 0%, 100%);
    --bg-accent: hsl(0, 0%, 95%);
    --text-primary: hsl(0, 0%, 20%);
    --text-secondary: hsl(0, 0%, 40%);
    --text-accent: var(--mmp-accent-blue);
    --border-color: hsl(0, 0%, 90%);
    --link-color: var(--mmp-accent-blue);
    --link-hover-color: var(--mmp-accent-pink);

    /* 通用字体定义 */
    --font-display: 'DisplayFont', serif;
    --font-body: 'BodyFont', monospace;
    --font-code: 'BodyFont', monospace;

    /* 通用阴影和圆角 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.2);

    /* 霓虹发光阴影 (用于强调色) */
    --glow-blue: 0 0 15px var(--mmp-accent-blue), 0 0 30px var(--mmp-accent-blue);
    --glow-pink: 0 0 15px var(--mmp-accent-pink), 0 0 30px var(--mmp-accent-pink);
    --glow-orange: 0 0 15px var(--mmp-accent-orange), 0 0 30px var(--mmp-accent-orange);

    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 20px;

    --transition-speed-fast: 0.2s ease-out;
    --transition-speed-medium: 0.4s ease-in-out;
    --transition-speed-slow: 0.6s ease-in-out;
}

/* --- 全局重置与基础样式 --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-speed-medium), color var(--transition-speed-medium);
}

.container {
    width: 92%; /* 宽度更宽 */
    max-width: 1400px; /* 更宽的内容区域 */
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
    text-transform: uppercase;
}

h1 {
    font-size: clamp(2.5rem, 7vw, 4rem); /* 进一步减小字体大小 */
    margin-bottom: 1.5rem;
    color: #000000;
    text-transform: none;
    line-height: 1.4;
    letter-spacing: 0.05em;
    font-weight: 300;
}
h2 { font-size: clamp(2.5rem, 5.5vw, 4.5rem); letter-spacing: -0.02em; margin-bottom: 2rem; }
h3 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-family: var(--font-body); font-weight: 700; color: var(--text-primary); }

p {
    margin-bottom: 1.25rem;
    font-size: clamp(1rem, 2vw, 1.1rem);
    color: var(--text-secondary);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color var(--transition-speed-fast);
}
a:hover {
    color: var(--link-hover-color);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius-md);
}

/* --- 头部导航 --- */
#main-header {
    background-color: transparent;
    padding: 1.5rem 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: none;
    transition: background-color var(--transition-speed-medium), padding var(--transition-speed-medium);
}

#main-header.scrolled {
    padding: 1rem 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

#main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px 0 10px;
}

#logo {
    display: block;
    margin-right: auto;
}

#nav-links {
    list-style: none;
    display: flex;
    align-items: center;
}

#nav-links li {
    margin-left: 50px;
}

#nav-links a.nav-item {
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--text-primary) !important;
    font-size: 1.05rem;
    padding: 0.5rem 0;
    position: relative;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: none;
}

#nav-links a.nav-item::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 4px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: width 0.4s;
}

#nav-links a.nav-item:hover,
#nav-links a.nav-item.active {
    color: var(--text-primary) !important;
    text-shadow: none !important;
    filter: none !important;
}

#nav-links a.nav-item:hover::after,
#nav-links a.nav-item.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

#theme-toggle, #menu-toggle {
    background: none;
    border: none;
    color: var(--mmp-text-primary);
    font-size: 1.8rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color var(--transition-speed-fast), transform var(--transition-speed-fast);
    text-shadow: 0 0 5px var(--mmp-text-primary);
}
#theme-toggle:hover, #menu-toggle:hover {
    color: var(--mmp-accent-orange);
    transform: scale(1.2);
    text-shadow: 0 0 10px var(--mmp-accent-orange);
}
#menu-toggle { display: none; }


/* --- 英雄区 - 沉浸式背景 --- */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0;
    overflow: hidden;
    background-color: var(--bg-primary);
}

#vector-field-container {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: 50%;
    height: 100%;
    z-index: 1;
}

.content {
    position: relative;
    z-index: 2;
    max-width: 35%;
    margin-left: 20%; /* 增加左侧外边距，使其靠右 */
    padding: 2rem;
}

.content h1 {
    font-size: clamp(2.5rem, 7vw, 4rem); /* 进一步减小字体大小 */
    margin-bottom: 1.5rem;
    color: #000000;
    text-transform: none;
    line-height: 1.4;
    letter-spacing: 0.05em;
    font-weight: 300;
}

.content p {
    font-size: 1.2rem;
    color: #000000;
    margin-bottom: 1rem;
}

.hero-background,
.hero-video,
.hero-overlay {
    display: none;
}

.sub-headline {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    margin-bottom: 3rem; /* 更大间距 */
    color: var(--mmp-text-secondary);
    font-weight: 300;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.02em; /* 略微宽松 */
}

.hero-cta-group {
    display: flex;
    justify-content: center;
    gap: 2rem; /* 更大间距 */
    flex-wrap: wrap;
}

.cta-button,
.contact-link-button,
.section-cta .cta-button,
.read-more-button {
    background: none !important;
    background-color: transparent !important;
    background-image: none !important;
    border: none;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-speed-fast);
}

.cta-button:hover,
.contact-link-button:hover,
.section-cta .cta-button:hover,
.read-more-button:hover {
    color: var(--text-primary);
    opacity: 0.8;
    background: none !important;
    background-color: transparent !important;
    background-image: none !important;
    transform: none;
    box-shadow: none;
}

.cta-button i {
    font-size: 1.1rem;
}


/* --- 内容区域通用 --- */
.content-section {
    padding: 100px 0; /* 更大垂直间距 */
    position: relative;
    overflow: hidden; /* 防止元素溢出 */
}
.content-section:nth-child(even) {
    background-color: var(--bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
    padding-bottom: 1.5rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}


/* --- 作品集网格 --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 固定三列 */
    gap: 1.5rem; /* 减小间距 */
    padding: 1rem; /* 减小内边距 */
}

.portfolio-item {
    position: relative;
    margin: 0.5rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item-inner {
    position: relative;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.75rem;
}

.portfolio-item-caption {
    padding: 0.75rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-item-caption-inner {
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 8px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-item-caption h3 {
    margin: 0 0 0.5rem 0;
    color: #fff;
    font-size: 1.1rem;
}

.portfolio-item-caption p {
    margin: 0;
    color: #ccc;
    font-size: 0.85rem;
    line-height: 1.4;
    flex-grow: 1;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.portfolio-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.section-cta {
    text-align: center;
    margin-top: 5rem; /* 更大间距 */
}
.section-cta .section-title {
    color: var(--mmp-text-primary);
}
.section-cta p {
    color: var(--mmp-text-secondary);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.video-placeholder {
    max-width: 900px; /* 更大 */
    margin: 0 auto;
    position: relative;
    cursor: pointer;
    border-radius: var(--border-radius-xl); /* 更大圆角 */
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 3px solid var(--mmp-accent-orange); /* 粗边框 */
    box-shadow: var(--glow-orange); /* 橙色发光 */
    transition: transform var(--transition-speed-medium), box-shadow var(--transition-speed-medium);
}
.video-placeholder:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl), var(--glow-pink); /* 粉色发光 */
}

.video-placeholder img {
    width: 100%;
    display: block;
    filter: brightness(0.7); /* 视频图片默认稍暗 */
    transition: filter var(--transition-speed-medium);
}
.video-placeholder:hover img {
    filter: brightness(0.9); /* 悬停时提亮 */
}

.video-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    font-size: 6rem; /* 更大图标 */
    color: rgba(255,255,255,0.9);
    text-shadow: 0 0 20px rgba(0,0,0,0.5);
    transition: transform 0.3s var(--transition-speed-fast), color 0.3s var(--transition-speed-fast);
}
.video-placeholder:hover .video-play-icon {
    transform: translate(-50%, -50%) scale(1.1);
    color: var(--mmp-accent-green); /* 绿色播放按钮 */
    text-shadow: 0 0 15px var(--mmp-accent-green);
}


/* --- 文章列表 - 渐进式披露 --- */
.articles-list {
    max-width: 1000px; /* 更宽 */
    margin: 0 auto;
}
.article-item {
    background-color: var(--bg-accent);
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: box-shadow var(--transition-speed-fast);
}
.article-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--text-accent);
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem; /* 更大内边距 */
    cursor: pointer;
}
.article-header h3 {
    margin-bottom: 0;
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
}

.toggle-article {
    background: none;
    border: none;
    font-size: 1.5rem; /* 增大图标 */
    color: var(--text-secondary);
    cursor: pointer;
    transition: transform var(--transition-speed-fast);
    padding: 0.5rem;
}
.toggle-article.open {
    transform: rotate(180deg);
    color: var(--mmp-accent-orange);
}

.article-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out, padding 0.5s ease-in-out;
    padding: 0 2rem; /* 匹配 header 内边距 */
}
.article-content.open {
    padding: 1rem 2rem 1.5rem;
}
.article-meta {
    font-family: var(--font-code);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    border-top: 1px dashed var(--border-color);
    padding-top: 1rem;
    margin-top: 1.5rem;
}
.read-more-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--mmp-accent-green); /* 绿色 */
    font-weight: 600;
    font-size: 1rem;
}
.read-more-button i {
    transition: transform var(--transition-speed-fast);
}
.read-more-button:hover i {
    transform: translateX(5px);
}

/* --- 关于我们 --- */
#about .about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem; /* 更大间距 */
    align-items: center;
}
#about .about-image img {
    border-radius: 50%;
    max-width: 320px; /* 增大头像 */
    margin: 0 auto;
    border: 5px solid var(--mmp-accent-blue);
    box-shadow: var(--glow-blue);
    transition: transform var(--transition-speed-medium), box-shadow var(--transition-speed-medium);
}
#about .about-image img:hover {
    transform: scale(1.05);
    box-shadow: var(--glow-pink); /* 悬停粉色发光 */
}
#about .about-text {
    padding: 2rem 2.5rem;
}
#about .about-text p {
    font-size: 1.05rem;
}

/* --- 联系方式 --- */
#contact.cta-section {
    background-color: var(--bg-secondary);
    color: var(--mmp-text-primary);
    padding: 100px 0;
}
#contact .section-title {
    color: var(--mmp-text-primary);
}
.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem; /* 更大间距 */
    flex-wrap: wrap;
    margin-top: 3rem;
}
.contact-link-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.5rem 0;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-speed-fast);
    background: none;
    border: none;
    cursor: pointer;
}
.contact-link-button:hover {
    color: var(--text-primary);
    opacity: 0.8;
}
.contact-link-button i {
    font-size: 1.1rem;
}


/* --- 页脚 --- */
#main-footer {
    background-color: var(--bg-primary); /* 与主体背景色相同 */
    color: var(--mmp-text-secondary);
    padding: 60px 0;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border-top: 1px solid var(--border-color);
}

#main-footer .container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
}
.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: var(--mmp-text-primary);
    letter-spacing: 0.05em;
}
.footer-social-links a {
    color: var(--mmp-text-secondary);
    font-size: 1.8rem;
    margin-left: 1.5rem; /* 左侧间距 */
    transition: color var(--transition-speed-fast), transform var(--transition-speed-fast);
}
.footer-social-links a:hover {
    color: var(--mmp-accent-blue);
    transform: scale(1.1);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.copyright { margin-bottom: 0; }
.footer-links { list-style: none; display: flex; gap: 2rem; }
.footer-links a {
    color: var(--mmp-text-secondary);
    transition: color var(--transition-speed-fast);
}
.footer-links a:hover {
    color: var(--mmp-text-primary);
}


/* --- 动画与交互增强 --- */
[data-animation] {
    opacity: 0;
    transition-property: opacity, transform;
    transition-duration: 0.8s; /* 动画持续时间更长 */
    transition-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1); /* 更流畅的缓动曲线 */
    transform: translateY(30px); /* 默认向下移动 */
}
.is-visible[data-animation="fadeIn"] { opacity: 1; transform: none; }
.is-visible[data-animation="fadeInUp"] { opacity: 1; transform: none; }
.is-visible[data-animation="fadeInDown"] { opacity: 1; transform: none; }
.is-visible[data-animation="fadeInLeft"] { opacity: 1; transform: none; }
.is-visible[data-animation="fadeInRight"] { opacity: 1; transform: none; }
.is-visible[data-animation="zoomIn"] { opacity: 1; transform: scale(1); }

[data-animation="zoomIn"] { transform: scale(0.9); } /* 默认缩小 */
[data-animation="fadeInLeft"] { transform: translateX(-30px); }
[data-animation="fadeInRight"] { transform: translateX(30px); }


@keyframes pulseAnimation { /* 视频播放按钮的脉动 */
  0% { transform: scale(1); box-shadow: var(--shadow-xl), var(--glow-orange); }
  50% { transform: scale(1.03); box-shadow: var(--shadow-xl), var(--glow-pink); }
  100% { transform: scale(1); box-shadow: var(--shadow-xl), var(--glow-orange); }
}


/* --- 响应式设计 --- */
@media (max-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr); /* 中等屏幕显示两列 */
    }
}

@media (max-width: 768px) {
    html { font-size: 15px; }

    #main-header.scrolled {
        background-color: rgba(255, 255, 255, 0.95);
    }

    #nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-secondary);
        box-shadow: var(--shadow-md);
        padding: 1rem 0;
        border-top: 1px solid var(--border-color);
        transition: transform var(--transition-speed-medium) ease-out, opacity var(--transition-speed-medium) ease-out;
        transform: translateY(-20px);
        opacity: 0;
    }

    #nav-links.active {
        display: flex;
        transform: translateY(0);
        opacity: 1;
    }

    #nav-links li {
        margin: 0;
        width: 100%;
        text-align: center;
    }

    #nav-links a.nav-item {
        display: block;
        padding: 1.2rem 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    #nav-links li:last-child a.nav-item {
        border-bottom: none;
    }

    #nav-links a.nav-item::after {
        display: none;
    }

    #menu-toggle {
        display: block;
    }

    #hero {
        flex-direction: column; /* 垂直堆叠 */
        justify-content: center; /* 内容居中 */
        padding: 80px 20px; /* 调整内边距 */
        min-height: auto; /* 允许高度根据内容调整 */
    }
    
    .animated-background-container {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
    }

    .animated-dot {
        filter: blur(50px); /* 在小屏幕上减小模糊 */
        /* 根据需要调整大小 */
    }
    .dot-red {
        width: 300px;
        height: 300px;
        top: -5%;
        right: -10%;
    }
    .dot-orange {
        width: 250px;
        height: 250px;
        top: 10%;
        right: -5%;
    }
    .dot-purple {
        width: 280px;
        height: 280px;
        top: 25%;
        right: -8%;
    }

    #vector-field-container {
        position: relative; /* 取消绝对定位 */
        width: 100%; /* 占据全宽 */
        height: 300px; /* 设置一个固定高度或调整 */
        margin-top: 40px; /* 与上方内容增加间距 */
        transform: none; /* 移除垂直居中transform */
        right: auto; /* 移除右侧定位 */
        top: auto; /* 移除顶部定位 */
    }

    .content {
        max-width: 100%; /* 占据全宽 */
        margin-left: 0; /* 移除左侧外边距 */
        padding: 2rem 0;
        text-align: center; /* 文字居中 */
    }
    
    .content h1 {
        font-size: clamp(2rem, 6vw, 3.5rem); /* 移动端也相应减小字体大小 */
        line-height: 1.5;
        font-weight: 300;
    }

    .content p {
         font-size: clamp(1rem, 4vw, 1.1rem); /* 调整段落字号 */
    }

    h1 {
        font-size: clamp(2.5rem, 7vw, 4rem);
        line-height: 1.5;
        letter-spacing: 0.03em;
    }
    .sub-headline { font-size: 1rem; margin-bottom: 2rem; }
    .hero-cta-group { flex-direction: column; gap: 1rem; }
    .cta-button { padding: 1rem 2rem; font-size: 1rem; width: 80%; max-width: 300px; margin: 0 auto; }

    .content-section { padding: 70px 0; }
    .section-title { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 2.5rem; }

    .portfolio-grid {
        grid-template-columns: 1fr; /* 小屏幕显示单列 */
        gap: 1rem;
    }
    
    .portfolio-item {
        margin: 0.25rem;
    }
    
    .portfolio-item img {
        height: 200px;
    }

    #about .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    #about .about-image img {
        margin-bottom: 1.5rem;
    }

    .contact-links { gap: 1rem; }
    .contact-link-button { padding: 0.9rem 1.8rem; font-size: 0.9rem; }

    .footer-top { flex-direction: column; text-align: center; gap: 1.5rem; }
    .footer-logo { margin-bottom: 1rem; }
    .footer-social-links a { margin: 0 0.75rem; }
    .footer-bottom { flex-direction: column-reverse; gap: 1rem; }
    .footer-links { flex-direction: column; gap: 0.5rem; }
    .footer-links li { text-align: center; }
}

/* 子页面导航栏与内容间距 */
body:not(#hero) #main-header {
    margin-bottom: 7rem;
}

/* 子页面内容标题与导航栏间距 */
body:not(#hero) .section-title {
    margin-top: 6rem;
}

[data-theme="light"] #nav-links a.nav-item {
    color: #000 !important;
}
[data-theme="light"] #nav-links a.nav-item:hover,
[data-theme="light"] #nav-links a.nav-item.active {
    color: #000 !important;
}

[data-theme="light"] #main-header.scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.project-icons {
    margin-top: 1.2rem;
    display: flex;
    gap: 1.2rem;
    align-items: center;
}
.project-icons a {
    color: #fff;
    font-size: 1.7rem;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
}
.project-icons a[aria-label="TikTok"] {
    color: #000;
    background: #fff;
    border-radius: 50%;
    width: 2.2rem;
    height: 2.2rem;
    justify-content: center;
}
.project-icons a[aria-label="TikTok"]:hover {
    color: #ff0050;
}
.project-icons a[aria-label="Bilibili"] {
    color: #00a1d6;
    background: #fff;
    border-radius: 50%;
    width: 2.2rem;
    height: 2.2rem;
    justify-content: center;
}
.project-icons a[aria-label="Bilibili"]:hover {
    color: #ff6699;
}
.icon-bilibili::before {
    content: "\e60b";
    font-family: 'Font Awesome 5 Free', 'Font Awesome 6 Free', 'FontAwesome', sans-serif;
    font-style: normal;
    font-weight: 900;
    font-size: 1.3rem;
    display: inline-block;
}

/* 动画背景样式 */
.animated-background-container {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%; /* 铺满整个区域 */
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.animated-dot {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 15s infinite ease-in-out;
}

.dot-red {
    width: 546px;
    height: 546px;
    background: #ff0000;
    top: -10%;
    right: -5%;
    animation-delay: 0s;
    opacity: 0.6;
    z-index: 1;
}

.dot-orange {
    width: 455px;
    height: 455px;
    background: #ff4500;
    top: 5%;
    right: 5%;
    animation-delay: -5s;
    opacity: 0.9;
    filter: blur(60px); /* 减小模糊程度 */
    z-index: 2;
}

.dot-purple {
    width: 510px;
    height: 510px;
    background: #9933ff;
    top: 15%;
    right: 0%;
    animation-delay: -10s;
    opacity: 0.4;
    z-index: 1;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.6; /* 初始透明度 - 匹配红色 */
    }
    10% {
        opacity: 0.9; /* 运动中透明度变化 - 匹配橙色 */
    }
    25% {
        transform: translate(-15px, 15px) scale(1.05);
        opacity: 0.4; /* 运动中透明度变化 - 匹配紫色 */
    }
    50% {
        transform: translate(0, 20px) scale(0.95);
        opacity: 0.6; /* 透明度变化回初始 */
    }
    60% {
         opacity: 0.9; /* 运动中透明度变化 */
    }
    75% {
        transform: translate(15px, 15px) scale(1.02);
         opacity: 0.4; /* 运动中透明度变化 */
    }
    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.6; /* 透明度变化回初始 */
    }
}