/* 
    Skeuomorphic Design v3 (Custom PNG Background)
*/

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: "Linux Libertine", "Linux Libertine O", "Georgia", "Times New Roman", "Noto Serif CJK SC", serif;
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 50px;
    padding-bottom: 50px;
    
    background-color: #262626; /* 图片加载失败时的底色 */
    
    background-image: var(--bg-texture-dark);
    background-repeat: repeat; /* 如果是小纹理，让它平铺 */
    background-attachment: fixed; /* 背景固定，不随滚动条滚动（更像桌面） */
}

/* 给你背景加一层暗角 (Vignette)，让中间亮四周暗，更有质感 */
body::after {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle, transparent 40%, rgba(0,0,0,0.6) 100%);
    pointer-events: none;
    z-index: -1;
}

/* 纸张样式 */
.paper {
    width: 100%;
    max-width: 740px;
    background-color: var(--paper-bg);
    position: relative;
    
    /* 逼真的纸张阴影 */
    box-shadow: 
        0 2px 10px rgba(0,0,0,0.5),
        0 0 60px rgba(189, 178, 150, 0.2) inset;
    
    border-radius: 3px;
    padding-top: 70px;
    padding-bottom: 30px;
    padding-left: 60px;
    padding-right: 60px;
    box-sizing: border-box;
    margin: 0 20px;

    /* 纸张表面微噪点 */
    background-image: var(--paper-texture-img);
    background-repeat: repeat;
}

/* 纸张边缘 */
.paper::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border: 1px solid rgba(0,0,0,0);
    border-radius: 3px;
    pointer-events: none;
}


/* ---------------- 排版样式 (保持不变) ---------------- */
h1 {
    font-size: 2.3em;
    margin-top: 0;
    margin-bottom: 15px;
    color: #222;
    text-align: center;
}

.name-cn {
    font-size: 0.55em;
    font-weight: 400;
    color: #222;
    margin-left: 10px;
    letter-spacing: 1px;
    vertical-align: middle;
}

.subtitle {
    text-align: center;
    font-style: italic;
    color: var(--text-meta);
    margin-bottom: 18px;
    font-family: "Georgia", serif;
}

.contact-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
    font-size: 0.95em;
}

.contact-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    color: var(--link-color);
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.12);
    background: linear-gradient(to bottom, rgba(255,255,255,0.8), rgba(240,240,240,0.9));
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.9),
        0 1px 2px rgba(0,0,0,0.2);
    transition: all 0.15s ease;
}

.contact-chip:hover {
    color: var(--link-hover);
    background-color: rgba(255,255,255,0.95);
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,1),
        0 2px 6px rgba(0,0,0,0.25);
    transform: translateY(-1px);
    border-radius: 8px;
}

.contact-chip:focus-visible {
    outline: 2px solid rgba(0,68,169,0.3);
    outline-offset: 2px;
}

.contact-chip .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.contact-chip .icon i {
    font-size: 18px;
}

.kz-icon {
    width: 18px;
    height: 18px;
    display: block;
}

.paper a:not(.contact-chip) {
    color: var(--link-color);
    text-decoration: none;
    padding: 0 1px 1px;
    border-bottom: 1px dotted rgba(0,0,0,0.25);
    transition: color 0.12s ease, background-color 0.12s ease, box-shadow 0.12s ease;
}

.paper a:not(.contact-chip):hover {
    color: var(--link-hover);
    background-color: rgba(0, 68, 169, 0.07);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
    border-radius: 2px;
}

.paper a:not(.contact-chip):focus-visible {
    outline: 2px solid rgba(0,68,169,0.3);
    outline-offset: 2px;
}

aside {
    margin-top: 50px;
    padding: 10px 8px;
    background: rgba(186, 52, 52, 0.08); /* 山楂红淡底 */
    border-left: 4px solid #c4463fc0;
    border-radius: 3px;
    box-shadow:
        inset 0 0px 0 rgba(255,255,255,0.9),
        0 1px 3px rgba(0,0,0,0.12);
    color: #5b211c;
}

sup {
    vertical-align: super;     /* 保持上标位置 */
    line-height: 0;       /* 避免影响行高 */
}

h2 {
    /* 1. 布局：利用 Flexbox 实现居中 + 两侧自适应横线 */
    display: flex;
    align-items: center;
    text-align: center;
    
    /* 2. 字体：使用衬线体 + 小型大写字母，典雅庄重 */
    font-family: "Linux Libertine", "Linux Libertine O", "Georgia", serif;
    font-variant: small-caps; /* 把小写变成小型大写 */
    font-size: 1.5em;
    font-weight: 300;
    letter-spacing: 3px; /* 拉开字距 */
    
    color: #55514d; /* 暖灰色 */
    
    margin-top: 50px;
    margin-bottom: 30px;
    
    /* 清除可能存在的旧边框属性 */
    border-bottom: none;
    padding-bottom: 0;
    box-shadow: none;
}

/* 3. 两侧的横线 (核心部分) */
h2::before,
h2::after {
    content: "";
    flex: 1; /* 让线条自动撑满剩余空间 */
    
    /* 
    拟物化凹槽线条效果：
    上边框是深色（阴影），下边框是白色（高光）
    看起来就像纸被压下去了一条线
    */
    /* 1. 给凹槽一个明显的物理高度 */
    height: 4px; 
    
    /* 2. 圆角，像工具压出来的痕迹 */
    border-radius: 1px; 
    
    /* 3. 凹槽底部的颜色（比纸张稍深，模拟深度） */
    background-color: rgba(0,0,0,0.04); 
    
    /* 4. 关键：内阴影(上) + 外高光(下) */
    box-shadow: 
        /* 内部上方阴影：模拟光线照不到的凹陷深处 */
        inset 0 1px 2px rgba(0,0,0,0.15),
        /* 外部下方高光：模拟凹槽边缘的反光 */
        0 1px 0 rgba(255,255,255,0.7);
        
    /* 5. 增加一点边框界限感 */
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

/* 4. 线条和文字之间的间距 */
h2::before {
    margin-right: 20px; /* 左线离文字的距离 */
}

h2::after {
    margin-left: 20px; /* 右线离文字的距离 */
}

h3.subheading {
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: "Linux Libertine", "Linux Libertine O", "Georgia", serif;
    font-variant: small-caps;
    font-size: 1.25em;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--text-meta);
    margin: 20px 0 20px;
    text-shadow: 0 1px 0 rgba(255,255,255,0.8);
}

p {
    line-height: 1.75;
    margin-bottom: 1.2em;
}

.entry {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px dashed #dcd8c5c2;
}

.entry li{
    line-height: 1.25;
    font-size: 0.9em;
    margin-top: 10px;
    margin-bottom: 0px;
    margin-left: 0px;
    margin-right: 20px;
    color: #555;
}

.entry p{
    line-height: 1.25;
    font-size: 0.9em;
    margin-top: 10px;
    margin-bottom: 0px;
    color: #555;
}

.entry:last-child { border-bottom: none; margin-bottom: -15px; }

.entry-title {
    display: block;
    font-weight: bold;
    color: #111;
    margin-bottom: 5px;
}

.entry-meta {
    font-size: 0.9em;
    color: var(--text-meta);
    font-style: italic;
}

.tag-soft {
    display: inline-block;
    margin-left: 8px;
    padding: 1px 6px;
    font-size: 0.65em;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: rgba(0,0,0,0.55);
    background: rgba(0,0,0,0.04);
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 6px;
    text-transform: uppercase;
}

.me {
    font-weight: bold;
    color: #000;
    background: rgba(0,0,0,0.04);
    border-top: 1px solid rgba(255,255,255,0.5);
    border-bottom: 1px solid rgba(0,0,0,0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
    padding: 0 3px;
    border-radius: 2px;
}

ul { padding-left: 20px; }
li {
    margin-bottom: 10px;
}
li:last-child {
    margin-bottom: -15px;
}



/* 容器：网格布局 */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
}

/* 图标外层：拟物化边框和光泽 */
.tech-badge {
    position: relative;
    width: 48px;
    height: 48px;
    
    /* 1. iOS 6 经典的圆角矩形 */
    border-radius: 10px; 
    
    /* 2. 边框：外深内浅，形成立体感 */
    border: 1px solid #b0aca0;
    box-shadow: 
        0 1px 3px rgba(0,0,0,0.2), /* 投影 */
        inset 0 1px 0 rgba(255,255,255,0.8); /* 顶部高光 */
        
    /* 3. 背景：米白色渐变，像塑料或陶瓷 */
    background: linear-gradient(to bottom, #f9f9f9, #e0e0e0);
    
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 核心：对 SkillIcons 进行复古调色 */
.tech-badge img {
    width: 32px;
    height: 32px;
    
    /* 
    关键滤镜：
    1. sepia(0.6): 施加褐色滤镜，匹配暖黄纸张
    2. contrast(0.9): 降低对比度，去除现代图标的“锐利感”
    3. saturate(0.8):稍微降低饱和度，去除霓虹色
    */
    filter: sepia(0.3) contrast(0.85) saturate(0.9);
    
    /* 让图标稍微透明一点，仿佛印在材质上 */
    opacity: 0.9; 
}

/* 4. 添加一层“玻璃反光” (Glass Shine) */
.tech-badge::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background:
        linear-gradient(to bottom, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0.1) 80%),
        radial-gradient(90% 70% at 50% 0%, rgba(255,255,255,0.6), rgba(255,255,255,0) 60%);
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    border-bottom-left-radius: 50% 35%;
    border-bottom-right-radius: 50% 35%;
    pointer-events: none;
}

@media (max-width: 600px) {
    body { padding-top: 20px; }
    .paper { padding: 40px 25px; margin: 0 10px; }
    h1 { font-size: 2.1em; }
}

/* 复古页脚样式 */
.vintage-footer {
    margin-top: 120px; /* 离主体内容远一点 */
    padding-top: 20px;
    text-align: center;
    position: relative;
    color: rgba(60, 60, 60, 0.6); /* 像褪色的墨水 */
}


.vintage-footer p {
    margin: 5px 0;
    font-family: "Courier New", Courier, monospace; /* 打字机字体 */
    font-size: 0.85em;
}

/* 爱心样式 */
.vintage-footer .heart {
    color: #d64541; /* 复古红，不刺眼 */
    font-size: 1.1em;
    vertical-align: -1px; /* 微调对齐 */
    display: inline-block;
}

/* 强调文字样式 */
.vintage-footer .skeuo {
    font-weight: bold;
    font-style: italic;
    color: #444;
    background: rgba(0,0,0,0.04);
    border-top: 1px solid rgba(255,255,255,0.5);
    border-bottom: 1px solid rgba(0,0,0,0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
    padding: 3px 5px 1px 5px;
    border-radius: 2px;
}

/* 鼠标放上去时，爱心跳动一下 */
.vintage-footer:hover .heart {
    animation: heartbeat 1s infinite;
}

.vintage-footer .apple-logo {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif; /* 强制使用苹果系统字体渲染 Logo */
    font-style: normal; /* Logo 保持端正，不随文字倾斜 */
    margin-right: 1px;
    font-size: 1.05em; /* 稍微大一点点以对齐文字 */
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}