/* ===== 字体声明 ===== */
@font-face {
    font-family: 'HarmonyOS Sans';
    font-style: normal;
    font-weight: 400;
    src: url('./fonts/HarmonyOS_Sans/HarmonyOS_Sans_Regular.ttf') format('truetype');
    font-display: swap;
}
@font-face {
    font-family: 'HarmonyOS Sans';
    font-style: normal;
    font-weight: 500;
    src: url('./fonts/HarmonyOS_Sans/HarmonyOS_Sans_Medium.ttf') format('truetype');
    font-display: swap;
}
@font-face {
    font-family: 'HarmonyOS Sans';
    font-style: normal;
    font-weight: 700;
    src: url('./fonts/HarmonyOS_Sans/HarmonyOS_Sans_Bold.ttf') format('truetype');
    font-display: swap;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:focus {
    outline: none !important;
    box-shadow: none !important;
}

html, body {
    height: 100%;
}
body {
    font-family: 'HarmonyOS Sans', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: url('./img/bg.png');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: #222;
}

/* ===== 导航栏 ===== */
.navbar {
    width: 100%;
    background: rgba(212, 237, 255, 0.85);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    flex-shrink: 0;
}

.nav-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #000;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-logo {
    height: 1.6rem;
    width: auto;
    display: block;
}
.nav-title span {
    line-height: 1;
}

.hamburger {
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: #000;
    padding: 4px 8px;
    transition: opacity 0.2s;
    line-height: 1;
}
.hamburger:hover {
    opacity: 0.6;
}

/* ===== 菜单下拉 ===== */
.menu-dropdown {
    position: absolute;
    top: 80px;
    right: 25px;
    background: #ffffff;
    border: 1px solid #ddd;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    min-width: 160px;
    padding: 8px 0;
    z-index: 200;
    overflow: hidden;
    transform-origin: top center;
    transform: scaleY(0.9) translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s cubic-bezier(0.2, 0.9, 0.4, 1),
                opacity 0.2s ease,
                visibility 0.25s;
}
.menu-dropdown.open {
    transform: scaleY(1) translateY(0);
    opacity: 1;
    visibility: visible;
}

.menu-item {
    padding: 10px 24px;
    font-size: 0.95rem;
    color: #000;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
    font-weight: 500;
    width: 100%;
}
.menu-item:hover {
    background: #f0f0f0;
}
.menu-item.active {
    background: #e6f0fa;
    font-weight: 600;
}

/* ===== 主内容 ===== */
.main-content {
    flex: 1 0 auto;
    /* 文章主框宽度：比版权框窄，设为 880px 左右 */
    max-width: 1200px;
    width: 100%;
    margin: 24px auto;
    padding: 0 16px;
}

/* ===== 页面切换 ===== */
.page-panel {
    display: none;
    opacity: 0;
    animation: pageFadeIn 0.3s ease forwards;
}
.page-panel.active {
    display: block;
}

@keyframes pageFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 文章卡片 ===== */
.post-card {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(2px);
    border-radius: 16px;
    padding: 24px 28px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.post-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.07);
}

.post-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #000;
}
.post-meta {
    font-size: 0.75rem;
    color: #888;
    margin-bottom: 12px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.post-summary {
    font-size: 0.9rem;
    color: #444;
    margin-bottom: 8px;
    line-height: 1.6;
}

.post-full-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s cubic-bezier(0.2, 0.9, 0.4, 1);
    border-top: 1px solid transparent;
}
.post-full-wrapper.show {
    grid-template-rows: 1fr;
    border-top-color: #eee;
}
.post-full {
    overflow: hidden;
    padding-top: 0;
    font-size: 0.9rem;
    color: #333;
    line-height: 1.7;
    opacity: 0;
    transition: opacity 0.25s ease 0.05s, padding-top 0.2s ease;
}
.post-full-wrapper.show .post-full {
    opacity: 1;
    padding-top: 16px;
}
.post-full p {
    margin-bottom: 0.6rem;
}
.post-full code {
    background: rgba(0, 0, 0, 0.04);
    padding: 0.1rem 0.4rem;
    border-radius: 6px;
    font-size: 0.85em;
}
.post-full pre {
    background: rgba(0, 0, 0, 0.04);
    padding: 0.8rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0.6rem 0;
}

.read-more {
    color: #000;
    font-weight: 600;
    font-size: 0.8rem;
    opacity: 0.4;
    transition: opacity 0.2s;
}
.post-card:hover .read-more {
    opacity: 0.8;
}

.tag {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 12px;
    border-radius: 30px;
    font-size: 0.65rem;
    color: #555;
    font-weight: 500;
}

.empty-message {
    text-align: center;
    padding: 3rem 0;
    color: #888;
}
.empty-message i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* ===== 关于页 ===== */
.about-text {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    background: rgba(255, 255, 255, 0.88);
    padding: 28px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.about-text p {
    margin-bottom: 1rem;
}

/* ===== 归档 ===== */
.archive-list {
    list-style: none;
    padding: 0;
    background: rgba(255, 255, 255, 0.88);
    border-radius: 16px;
    padding: 20px 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.archive-list li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
}
.archive-list li .date {
    color: #888;
    font-size: 0.8rem;
}

/* ===== 底部版权框（拉长，比主内容宽） ===== */
.footer-note {
    flex-shrink: 0;
    width: 100%;
    /* 版权框宽度 */
    max-width: 1500px;
    margin: 0 auto 16px auto;
    padding: 12px 20px;
    background: rgba(212, 237, 255, 0.85);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 12px;
    text-align: center;
    font-size: 0.75rem;
    color: #000;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

/* ===== 移动端响应式 ===== */
@media (max-width: 600px) {
    .navbar {
        padding: 0 16px;
        height: 54px;
    }
    .nav-title {
        font-size: 1.1rem;
    }
    .nav-logo {
        height: 1.4rem;
    }
    .post-card {
        padding: 18px 20px;
    }
    .main-content {
        padding: 0 12px;
        margin: 16px auto;
        max-width: 100%;
    }
    .about-text {
        padding: 18px 20px;
    }
    .archive-list {
        padding: 12px 16px;
    }
    .footer-note {
        margin: 0 12px 12px 12px;
        width: auto;
        max-width: 100%;
    }
}
/* 文章详情页内容样式 */
#postContent h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}
#postContent h2 {
    font-size: 1.5rem;
    margin: 1.5rem 0 0.8rem 0;
}
#postContent p {
    margin-bottom: 0.8rem;
    line-height: 1.8;
}
#postContent ul, #postContent ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}
#postContent code {
    background: rgba(0,0,0,0.04);
    padding: 0.1rem 0.4rem;
    border-radius: 6px;
    font-size: 0.85em;
}
#postContent pre {
    background: rgba(0,0,0,0.04);
    padding: 0.8rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0.6rem 0;
}
#postContent table {
    border-collapse: collapse;
    width: 100%;
    margin: 1rem 0;
}
#postContent th, #postContent td {
    border: 1px solid #ddd;
    padding: 8px 12px;
    text-align: left;
}
#postContent th {
    background: #f5f5f5;
}
#postContent blockquote {
    border-left: 4px solid #888;
    padding-left: 1rem;
    color: #555;
    margin: 1rem 0;
}
#postContent img {
    max-width: 100%;
    border-radius: 8px;
}