/* =========================================
   Anti-AI Design System: 极简/粗野/杂志风
   ========================================= */

:root {
    /* 配色：牛皮纸底 + 深炭灰 + 砖红点缀 (拒绝蓝紫渐变) */
    --bg-color: #F4F1EA;
    --text-color: #2C2C2C;
    --accent-color: #A33B20; /* 砖红色 */
    --border-color: #2C2C2C;
    --muted-text: #666666;
    
    /* 字体栈：宋体(人文) + 等宽(极客) */
    --font-serif: 'Noto Serif SC', 'Songti SC', serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* 间距与布局 */
    --max-width: 800px;
    --spacing-md: 2rem;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--text-color);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: color 0.2s, border-color 0.2s;
}

a:hover {
    color: var(--accent-color);
    border-bottom: 1px solid var(--accent-color);
}

/* ---------- Header ---------- */
.site-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
    margin-bottom: 4rem;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
    border-bottom: none;
}

.cursor {
    animation: blink 1s step-end infinite;
}

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

.main-nav a {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-left: 1.5rem;
    border-bottom: none;
    text-transform: lowercase;
}

.main-nav a:hover {
    text-decoration: line-through; /* 划掉效果，极客感 */
}

/* ---------- Hero Section ---------- */
.hero {
    margin-bottom: 6rem;
    padding-top: 2rem;
}

.hero-meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--muted-text);
    letter-spacing: 1px;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    letter-spacing: -1px;
}

.hero-title .sub-title {
    font-size: 2rem;
    font-weight: 400;
    color: var(--muted-text);
    display: block;
    margin-top: 0.5rem;
}

.hero-desc {
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2rem;
}

.btn-text {
    font-family: var(--font-mono);
    font-size: 1rem;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    transition: all 0.2s;
}

.btn-text:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
    border-color: var(--text-color);
}

/* ---------- Sections ---------- */
.section-block {
    margin-bottom: 5rem;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.section-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-color);
    margin-left: 1rem;
}

.section-desc {
    font-size: 0.9rem;
    color: var(--muted-text);
    margin-bottom: 2rem;
}

/* /now Grid */
.now-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
}

.now-item {
    background-color: var(--bg-color);
    padding: 1.5rem;
}

.now-item .label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.now-item .value {
    font-size: 1rem;
}

/* Lab Cards */
.lab-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.lab-card {
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    position: relative;
    transition: transform 0.2s;
}

.lab-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 4px 4px 0px var(--text-color); /* 粗野主义硬阴影 */
}

.lab-meta {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.lab-status {
    font-weight: 700;
}

.status-success { color: #2E4A3D; } /* 墨绿 */
.status-fail { color: var(--accent-color); } /* 砖红 */
.status-wip { color: #B8860B; } /* 暗金 */

.lab-name {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.lab-desc {
    color: var(--muted-text);
    font-size: 0.95rem;
}

/* Digest List */
.digest-list {
    list-style: none;
}

.digest-list li {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px dashed var(--border-color);
    align-items: baseline;
}

.digest-list .date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--muted-text);
}

.digest-list .title {
    font-size: 1.05rem;
    font-weight: 700;
}

.digest-list .tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border: 1px solid var(--muted-text);
    padding: 2px 6px;
    border-radius: 0; /* 拒绝圆角 */
}

/* ---------- Footer ---------- */
.site-footer {
    margin-top: 6rem;
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
}

.footer-inner {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--muted-text);
}

.copyright {
    margin-bottom: 1rem;
}

.beian-info a {
    border-bottom: none;
    color: var(--muted-text);
}

.beian-info a:hover {
    color: var(--text-color);
}

.beian-icon {
    height: 14px;
    vertical-align: middle;
    margin-right: 4px;
}

.divider {
    margin: 0 10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
    .hero-title { font-size: 2.5rem; }
    .hero-title .sub-title { font-size: 1.5rem; }
    .now-grid { grid-template-columns: 1fr; }
    .digest-list li { 
        grid-template-columns: 1fr; 
        gap: 0.25rem;
    }
    .digest-list .tag {
        justify-self: start;
        margin-top: 0.5rem;
    }
}