/* ============================================================
   个人博客 · 极客终端风（响应式）
   主题：深色背景 + 等宽字体 + 霓虹青绿 + 代码卡片
   ============================================================ */

:root {
    --bg: #0b0e14;             /* 页面背景 */
    --bg-grid: #11151f;        /* 网格底色 */
    --panel: #131824;          /* 卡片背景 */
    --panel-2: #181e2c;        /* 次面板/hover */
    --border: #232b3b;         /* 边框 */
    --border-glow: #00ff9c;    /* 发光边框 */
    --text: #c8d3e0;           /* 正文 */
    --text-dim: #7a8699;       /* 次要文字 */
    --text-faint: #4d586a;     /* 更弱 */
    --accent: #00ff9c;         /* 主强调：霓虹绿 */
    --accent-2: #36c5f0;       /* 辅助：电光蓝 */
    --accent-3: #c792ea;       /* 辅助：紫 */
    --danger: #ff5370;         /* 红 */
    --warning: #ffb86c;        /* 橙 */
    --mono: "JetBrains Mono", "Cascadia Code", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--mono);
    background-color: var(--bg);
    background-image:
        linear-gradient(rgba(35, 43, 59, 0.25) 1px, transparent 1px),
        linear-gradient(90deg, rgba(35, 43, 59, 0.25) 1px, transparent 1px);
    background-size: 32px 32px;
    color: var(--text);
    font-size: 14px;
    line-height: 1.75;
}

a {
    color: inherit;
    text-decoration: none;
}

::selection {
    background: var(--accent);
    color: #06110c;
}

.container {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ========== 顶部终端窗口 ========== */
.site-header {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 0 0 24px;
    margin-bottom: 28px;
    position: relative;
}

.site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.55;
}

.term-bar {
    max-width: 820px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 7px;
    border-bottom: 1px solid var(--border);
}

.term-bar .dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    display: inline-block;
}

.term-bar .dot.r { background: #ff5f57; }
.term-bar .dot.y { background: #febc2e; }
.term-bar .dot.g { background: #28c840; }

.term-title {
    margin-left: 10px;
    color: var(--text-faint);
    font-size: 12px;
    letter-spacing: 0.5px;
}

.site-header .container {
    text-align: center;
    padding-top: 26px;
}

.site-header h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.site-header h1 a {
    color: var(--accent);
    text-shadow: 0 0 18px rgba(0, 255, 156, 0.35);
}

.site-header h1::before {
    content: "$ ";
    color: var(--accent-2);
    text-shadow: none;
}

.site-desc {
    color: var(--text-dim);
    font-size: 13px;
    margin-top: 8px;
}

.site-desc::before {
    content: "# ";
    color: var(--text-faint);
}

/* ========== 搜索框 ========== */
.site-search {
    margin: 18px auto 0;
    max-width: 460px;
    display: flex;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.site-search:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), 0 0 14px rgba(0, 255, 156, 0.18);
}

.site-search input[type="text"] {
    flex: 1;
    min-width: 0;
    padding: 9px 14px;
    border: none;
    background: transparent;
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
}

.site-search input[type="text"]:focus {
    outline: none;
}

.site-search button {
    padding: 9px 18px;
    border: none;
    border-left: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--accent);
    font-family: var(--mono);
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}

.site-search button:hover {
    background: var(--accent);
    color: #06110c;
}

/* ========== 分类导航（标签） ========== */
.site-nav {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.site-nav a {
    font-size: 12.5px;
    color: var(--text-dim);
    border: 1px solid var(--border);
    background: var(--bg);
    padding: 4px 12px;
    border-radius: 4px;
    transition: all 0.18s;
}

.site-nav a::before {
    content: "./";
    color: var(--text-faint);
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 255, 156, 0.18);
}

.search-tip {
    border: 1px dashed var(--accent-2);
    color: var(--accent-2);
    background: rgba(54, 197, 240, 0.06);
    font-size: 13px;
    padding: 9px 14px;
    border-radius: 6px;
    margin-bottom: 18px;
}

.search-tip a {
    color: var(--danger);
}

/* ========== 文章卡片（代码块风） ========== */
.post-card {
    position: relative;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 22px 26px;
    margin-bottom: 16px;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.post-card::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 14px;
    bottom: 14px;
    width: 3px;
    background: var(--accent);
    opacity: 0;
    border-radius: 0 2px 2px 0;
    transition: opacity 0.2s, box-shadow 0.2s;
}

.post-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px rgba(0, 255, 156, 0.25), 0 6px 24px rgba(0, 0, 0, 0.45);
    transform: translateY(-2px);
}

.post-card:hover::before {
    opacity: 1;
    box-shadow: 0 0 10px var(--accent);
}

.post-card h2 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 10px;
}

.post-card h2 a {
    color: var(--text);
    transition: color 0.18s;
}

.post-card h2 a::before {
    content: "## ";
    color: var(--accent-3);
}

.post-card h2 a:hover {
    color: var(--accent);
}

/* ---------- 封面图 ---------- */
.post-cover-link {
    display: block;
    margin: -22px -26px 16px;
    border-bottom: 1px solid var(--border);
}

.post-cover {
    display: block;
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px 8px 0 0;
    filter: saturate(0.85) contrast(1.05);
    transition: filter 0.25s;
}

.post-card:hover .post-cover {
    filter: saturate(1) contrast(1.05);
}

.post-meta {
    font-size: 12px;
    color: var(--text-dim);
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 12px;
}

.post-meta span::before {
    color: var(--text-faint);
    margin-right: 4px;
}

.post-meta span:nth-child(1)::before { content: "@"; }
.post-meta span:nth-child(3)::before { content: "pv:"; }
.post-meta span:nth-child(4)::before { content: "cm:"; }

.post-meta .cate {
    color: var(--accent-2);
}

.post-meta .cate::before {
    content: "[";
    color: var(--text-faint);
    margin: 0;
}

.post-meta .cate::after {
    content: "]";
    color: var(--text-faint);
}

.post-summary {
    color: var(--text-dim);
    font-size: 13.5px;
}

.post-more {
    display: inline-block;
    margin-top: 12px;
    font-size: 13px;
    color: var(--accent);
}

.post-more::before {
    content: ">> ";
}

.post-more:hover {
    text-shadow: 0 0 10px rgba(0, 255, 156, 0.6);
}

.empty-tip {
    text-align: center;
    color: var(--text-faint);
    padding: 80px 0;
    font-size: 14px;
}

.empty-tip::before {
    content: "// ";
}

/* ========== 分页 ========== */
.pagination {
    text-align: center;
    margin: 28px 0 44px;
    font-size: 13px;
    color: var(--text-dim);
}

.pagination-links {
    margin-top: 12px;
}

.pagination a {
    display: inline-block;
    padding: 6px 13px;
    margin: 0 3px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-dim);
    font-size: 13px;
    transition: all 0.18s;
}

.pagination a:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 8px rgba(0, 255, 156, 0.15);
}

/* ========== 文章详情 ========== */
.article {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 32px 34px;
}

.article-title {
    font-size: 24px;
    line-height: 1.45;
    color: var(--text);
    margin-bottom: 14px;
}

.article-title::before {
    content: "# ";
    color: var(--accent);
}

.article-cover {
    margin-top: 18px;
}

.article-cover img {
    display: block;
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.article-content {
    margin-top: 26px;
    font-size: 15px;
    color: var(--text);
    overflow-wrap: break-word;
}

.article-content h1,
.article-content h2,
.article-content h3 {
    margin: 26px 0 12px;
    line-height: 1.5;
    color: var(--text);
}

.article-content h2 {
    font-size: 20px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

.article-content h2::before { content: "## "; color: var(--accent); }
.article-content h3::before { content: "### "; color: var(--accent-2); }

.article-content p {
    margin: 13px 0;
}

.article-content img {
    max-width: 100%;
    border-radius: 6px;
    border: 1px solid var(--border);
}

.article-content a {
    color: var(--accent-2);
    border-bottom: 1px dashed var(--accent-2);
}

.article-content a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.article-content ul,
.article-content ol {
    padding-left: 24px;
    margin: 13px 0;
}

.article-content li {
    margin: 5px 0;
}

.article-content ul li::marker {
    content: "▸ ";
    color: var(--accent);
}

.article-content blockquote {
    border-left: 3px solid var(--accent-2);
    background: rgba(54, 197, 240, 0.07);
    padding: 10px 16px;
    margin: 15px 0;
    color: var(--text-dim);
    border-radius: 0 6px 6px 0;
}

.article-content blockquote::before {
    content: "> ";
    color: var(--accent-2);
}

.article-content table {
    border-collapse: collapse;
    margin: 15px 0;
    font-size: 14px;
    display: block;
    overflow-x: auto;
}

.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: 7px 13px;
}

.article-content th {
    background: var(--panel-2);
    color: var(--accent);
}

/* 代码：终端黑 */
.article-content pre {
    background: #070a0f;
    border: 1px solid var(--border);
    color: #a9b7c6;
    padding: 16px 18px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 15px 0;
    font-size: 13.5px;
    line-height: 1.65;
    position: relative;
}

.article-content pre::before {
    content: "$ ";
    color: var(--accent);
}

.article-content code {
    font-family: var(--mono);
}

.article-content p code,
.article-content li code {
    background: rgba(0, 255, 156, 0.1);
    color: var(--accent);
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 90%;
    border: 1px solid rgba(0, 255, 156, 0.18);
}

.article-content pre code {
    background: none;
    color: inherit;
    padding: 0;
    border: none;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px;
    font-size: 13px;
}

.article-nav a {
    color: var(--accent-2);
}

.article-nav a:hover {
    color: var(--accent);
}

.article-nav span {
    color: var(--text-faint);
}

/* ========== 评论区 ========== */
.comments {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 26px 28px;
    margin-top: 18px;
}

.comments-title {
    font-size: 17px;
    color: var(--accent);
    margin-bottom: 18px;
}

.comments-title::before {
    content: "// ";
    color: var(--text-faint);
}

.comment-error {
    background: rgba(255, 83, 112, 0.1);
    border: 1px solid rgba(255, 83, 112, 0.35);
    color: var(--danger);
    padding: 9px 14px;
    border-radius: 6px;
    margin-bottom: 14px;
    font-size: 13px;
}

/* 蜜罐字段 */
.hp-input {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.comment-form {
    position: relative;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
}

.comment-form:focus-within {
    border-color: var(--accent-2);
}

.reply-tip {
    background: rgba(54, 197, 240, 0.1);
    border: 1px solid rgba(54, 197, 240, 0.3);
    color: var(--accent-2);
    font-size: 12.5px;
    padding: 5px 12px;
    border-radius: 5px;
    margin-bottom: 10px;
}

.reply-tip button {
    border: none;
    background: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 12.5px;
    margin-left: 8px;
    font-family: var(--mono);
}

.comment-form-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.comment-form-row input,
.comment-form textarea {
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 13px;
    font-family: var(--mono);
    background: var(--panel);
    color: var(--text);
}

.comment-form-row input {
    flex: 1;
    min-width: 0;
}

.comment-form textarea {
    width: 100%;
    resize: vertical;
    line-height: 1.7;
}

.comment-form-row input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--accent-2);
    box-shadow: 0 0 8px rgba(54, 197, 240, 0.15);
}

.btn-comment-submit {
    margin-top: 10px;
    padding: 8px 22px;
    border: 1px solid var(--accent);
    border-radius: 5px;
    background: transparent;
    color: var(--accent);
    font-size: 13px;
    font-family: var(--mono);
    cursor: pointer;
    transition: all 0.18s;
}

.btn-comment-submit::before {
    content: "$ ";
    opacity: 0.7;
}

.btn-comment-submit:hover {
    background: var(--accent);
    color: #06110c;
    box-shadow: 0 0 14px rgba(0, 255, 156, 0.35);
}

.comment-empty {
    text-align: center;
    color: var(--text-faint);
    padding: 30px 0;
    font-size: 13px;
}

.comment-item {
    display: flex;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px dashed var(--border);
}

.comment-item:last-child {
    border-bottom: none;
}

.avatar {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 6px;
    color: #06110c;
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-2) !important;
    border: 1px solid var(--border);
    font-family: var(--mono);
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 13px;
    border-radius: 5px;
}

.comment-body {
    flex: 1;
    min-width: 0;
}

.comment-head {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.comment-name {
    font-weight: 600;
    color: var(--accent-2);
    font-size: 13px;
}

.comment-name.blogger {
    color: #06110c;
    background: var(--accent);
    border-radius: 3px;
    padding: 1px 7px;
    font-size: 11.5px;
    box-shadow: 0 0 8px rgba(0, 255, 156, 0.4);
}

.comment-time {
    color: var(--text-faint);
    font-size: 12px;
}

.comment-text {
    color: var(--text);
    font-size: 13.5px;
    margin-top: 4px;
    overflow-wrap: break-word;
}

.comment-reply-btn {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-dim);
    font-size: 12px;
    cursor: pointer;
    padding: 3px 10px;
    border-radius: 4px;
    margin-top: 6px;
    font-family: var(--mono);
    transition: all 0.18s;
}

.comment-reply-btn:hover {
    border-color: var(--accent-2);
    color: var(--accent-2);
}

.reply-list {
    margin-top: 12px;
    padding: 4px 0 0 14px;
    border-left: 2px solid var(--border);
}

.reply-list .comment-item {
    padding: 10px 0;
    border-bottom: none;
}

/* ========== 底部 ========== */
.site-footer {
    text-align: center;
    color: var(--text-faint);
    font-size: 12.5px;
    padding: 18px 0 40px;
    line-height: 1.9;
}

.site-footer a {
    color: var(--text-dim);
}

.site-footer a:hover {
    color: var(--accent);
}

/* ICP 备案号链接 */
.beian-link {
    display: inline-block;
    margin-top: 2px;
    color: var(--text-dim) !important;
}

.beian-link:hover {
    color: var(--accent) !important;
}

.site-footer::before {
    content: "/* ";
}

.site-footer::after {
    content: " */";
}

/* ========== 手机端适配 ========== */
@media (max-width: 768px) {
    body {
        font-size: 13.5px;
    }

    .term-bar {
        padding: 10px 14px;
    }

    .term-title {
        font-size: 11px;
    }

    .site-header .container {
        padding-top: 20px;
    }

    .site-header h1 {
        font-size: 22px;
    }

    .site-nav a {
        padding: 3px 10px;
        font-size: 12px;
    }

    .site-search button {
        padding: 9px 14px;
    }

    .post-card {
        padding: 18px 16px;
        margin-bottom: 12px;
        border-radius: 6px;
    }

    .post-cover-link {
        margin: -18px -16px 14px;
    }

    .post-cover {
        height: 170px;
        border-radius: 6px 6px 0 0;
    }

    .post-card h2 {
        font-size: 16px;
    }

    .post-meta {
        gap: 10px;
    }

    .article {
        padding: 22px 16px;
        border-radius: 6px;
    }

    .article-title {
        font-size: 20px;
    }

    .article-cover img {
        max-height: 230px;
    }

    .article-content {
        font-size: 14px;
    }

    .article-content pre {
        padding: 12px;
        font-size: 12.5px;
    }

    .comments {
        padding: 18px 14px;
        border-radius: 6px;
    }

    .comment-form-row {
        flex-direction: column;
        gap: 8px;
    }

    .avatar {
        width: 34px;
        height: 34px;
        font-size: 14px;
    }

    .pagination a {
        padding: 6px 10px;
        margin: 2px;
    }
}

/* ============================================================
   CRT 终端特效：扫描线 + 打字光标
   ============================================================ */

/* 全屏扫描线覆盖层（不拦截点击，不影响阅读） */
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    pointer-events: none;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0px,
        rgba(0, 0, 0, 0) 2px,
        rgba(0, 0, 0, 0.18) 3px,
        rgba(0, 0, 0, 0) 4px
    );
    opacity: 0.5;
}

/* 打字机光标 */
.site-header h1 a.type-caret::after {
    content: "▋";
    color: var(--accent);
    animation: caret-blink 1s steps(1) infinite;
    text-shadow: 0 0 10px rgba(0, 255, 156, 0.7);
    margin-left: 2px;
}

@keyframes caret-blink {
    0%, 50%  { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 尊重系统"减弱动态效果"设置：关闭动画与扫描线 */
@media (prefers-reduced-motion: reduce) {
    body::after {
        display: none;
    }

    .site-header h1 a.type-caret::after {
        animation: none;
        opacity: 1;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
    }
}