/* --- 字体定义 --- */
@font-face {
  font-family: 'CustomFont'; /* 简体中文/默认字体 */
  src: url('https://fonts.yani.qzz.io/fonts/ZCOOLXiaoWei-Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family: 'JapaneseFont'; /* 日语字体 */
  src: url('https://fonts.yani.qzz.io//fonts/NotoSerifJP-Medium.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family: 'RussianFont'; /* 俄语字体 */
  src: url('https://fonts.yani.qzz.io//fonts/PlayfairDisplay-Medium.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family: 'TraditionalChineseFont'; /* 繁體中文字体 */
  src: url('https://fonts.yani.qzz.io//fonts/NotoSerifHK-Medium.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}


/* --- 变量定义 --- */
:root {
    --bg-color: #f4f4f4;
    --text-color: #333;
    --card-bg-color: #fff;
    --header-bg-color: #333;
    --header-text-color: #fff;
    --link-color: #337ab7;
    --footer-text-color: #888;
    --shadow-color: rgba(0,0,0,0.1);
    --btn-bg-color: #e0e0e0;
    --btn-text-color: #333;
    --btn-border-color: #ccc;
}
body.dark-mode {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg-color: #1e1e1e;
    --header-bg-color: #1e1e1e;
    --header-text-color: #e0e0e0;
    --link-color: #58a6ff;
    --footer-text-color: #aaa;
    --shadow-color: rgba(255,255,255,0.1);
    --btn-bg-color: #333;
    --btn-text-color: #e0e0e0;
    --btn-border-color: #555;
}

/* --- 通用样式 --- */
body {
    font-family: 'CustomFont', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: var(--bg-color);
    color: var(--text-color);
    transition: background 0.3s, color 0.3s;
}
body.no-scroll {
    overflow: hidden;
}

/* --- 特定语言字体应用 --- */
html[lang="ja"] body {
    font-family: 'JapaneseFont', 'CustomFont', sans-serif;
}
html[lang="ru"] body {
    font-family: 'RussianFont', 'CustomFont', serif;
}
html[lang="zh-TW"] body {
    font-family: 'TraditionalChineseFont', 'CustomFont', serif;
}

.container {
    width: 90%;
    max-width: 960px;
    margin: auto;
    padding: 20px 0;
}
.main-content.container {
    padding-top: 40px;
}

/* --- Header --- */
header {
    background: var(--header-bg-color);
    color: var(--header-text-color);
    padding: 1rem 0;
    transition: background 0.3s;
}
header .container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-left: 50px;
    padding-right: 50px;
    box-sizing: border-box;
}
header h1 {
    margin: 0;
    font-size: 1.5em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: 'JapaneseFont', sans-serif;
}

/* --- 主要内容区域 --- */
.main { padding: 20px; background: var(--card-bg-color); border-radius: 8px; box-shadow: 0 0 10px var(--shadow-color); transition: background 0.3s; }
.profile-image { display: block; margin: 20px auto; max-width: 100%; width: 250px; height: auto; border-radius: 15px; }
.about, .social-media { margin-bottom: 20px; }
.about h2, .social-media h2 { color: var(--text-color); text-align: center; }
.about p { text-align: center; }
.social-media ul { list-style: none; padding: 0; text-align: center; }
.social-media li { display: inline-block; margin: 0 15px; }
.social-media a { text-decoration: none; color: var(--link-color); font-size: 1.1em; transition: color 0.3s; }
.social-media a:hover { text-decoration: underline; }

/* ★★★ 修改：为页脚指定字体 ★★★ */
footer {
    font-family: 'JapaneseFont', sans-serif;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    color: var(--footer-text-color);
    transition: color 0.3s;
}

/*
================================
移动端: 导航栏和侧边栏样式
================================
*/
.menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    position: absolute;
    right: 0px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
}
.menu-toggle svg { stroke: var(--header-text-color); }
#main-nav {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100dvh;
    background: var(--card-bg-color);
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    padding: 60px 20px 20px 20px;
    box-sizing: border-box; 
    overflow-y: auto;
}
#main-nav.open { transform: translateX(0); }
.close-menu {
    display: block;
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
}
.nav-links { list-style: none; padding: 0; margin: 0; }
.nav-links a { text-decoration: none; color: var(--text-color); font-size: 1.2em; padding: 10px 0; display: block; }
.nav-links a:hover { color: var(--link-color); }
.controls {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 15px;
    padding-top: 20px;
    border-top: 1px solid var(--btn-border-color);
}
.control-btn {
    padding: 8px 12px;
    border: 1px solid var(--btn-border-color);
    background-color: var(--btn-bg-color);
    color: var(--btn-text-color);
    border-radius: 5px;
    cursor: pointer;
    font-family: Arial, sans-serif;
    transition: background-color 0.3s, color 0.3s;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}
.overlay { 
    display: none; 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background: rgba(0,0,0,0.5); 
    z-index: 1000;
}
.overlay.active { display: block; }

/*
================================
桌面端样式 (屏幕宽度 > 768px)
================================
*/
@media (min-width: 768px) {
    header .container {
        justify-content: space-between;
        padding-left: 0;
        padding-right: 0;
    }
    header h1 {
        white-space: normal;
        overflow: visible;
    }
    .menu-toggle, .close-menu {
        display: none;
    }
    #main-nav {
        display: flex;
        position: static;
        width: auto;
        height: auto;
        background: none;
        transform: none;
        padding: 0;
        flex-direction: row;
        align-items: center;
        gap: 25px;
        z-index: auto;
        overflow-y: visible;
    }
    .nav-links a {
        padding: 0;
        color: var(--header-text-color);
        font-size: 1em;
    }
    .nav-links a:hover {
        text-decoration: underline;
    }
    .controls {
        flex-direction: row;
        gap: 10px;
        padding-top: 0;
        border-top: none;
        width: auto;
    }
    .control-btn {
        background-color: transparent;
        border-color: var(--header-text-color);
        color: var(--header-text-color);
        width: auto;
    }
}