/**
 * 首页专用样式 — 设计图风格（V5 红棕极简）
 */

:root {
    --canvas: #F6F5F1;
    --surface: #FFFFFF;
    --ink: #1C1B1A;
    --muted: #7A7670;
    --hairline: #E6E4E0;
    --accent: #C73B2B;
    --accent-soft: #FAEAE6;
    --accent-hover: #A82E1F;
    --pale-red-bg: #FDEBEC;
    --pale-red-fg: #9F2F2D;
    --pale-blue-bg: #E1F3FE;
    --pale-blue-fg: #1F6C9F;
    --pale-green-bg: #EDF3EC;
    --pale-green-fg: #346538;
    --pale-yellow-bg: #FBF3DB;
    --pale-yellow-fg: #956400;
    --pale-amber-bg: #FEF1E0;
    --pale-amber-fg: #B85C00;
}

/* ===== Hero ===== */
.hero {
    padding: 48px 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text { flex: 1; }

.hero-text .tag {
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.hero-text .tag .dot {
    width: 5px;
    height: 5px;
    border-radius: 999px;
    background: var(--accent);
}

.hero-text h1 {
    font-size: clamp(26px, 3.2vw, 38px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin: 0 0 10px;
}

.hero-text p {
    font-size: 14.5px;
    color: var(--muted);
    margin: 0;
    max-width: 50ch;
    line-height: 1.6;
}

.hero-right {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 16px;
}

.hero-search {
    display: flex;
    align-items: center;
    max-width: 400px;
    width: 100%;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    background: var(--surface);
    position: relative;
}

.hero-search form {
    display: flex;
    width: 100%;
}

.hero-search input {
    flex: 1;
    border: none;
    padding: 10px 38px 10px 14px;
    font: 14px var(--sans, 'Noto Sans SC', sans-serif);
    color: var(--ink);
    background: transparent;
    outline: none;
}

.hero-search input::placeholder {
    color: var(--muted);
}

.hero-search button {
    position: absolute;
    right: 4px;
    top: 4px;
    bottom: 4px;
    border: none;
    background: var(--accent);
    width: 30px;
    height: 30px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 200ms ease;
}

.hero-search button:hover {
    background: var(--accent-hover);
}

.hero-search button svg {
    width: 14px;
    height: 14px;
    stroke: #fff;
    stroke-width: 1.8;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.hero-stats {
    display: flex;
    gap: 20px;
}

.hero-stats .stat .num {
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--accent);
}

.hero-stats .stat .lbl {
    font-size: 12px;
    color: var(--muted);
    margin-top: 4px;
}

/* ===== Section ===== */
section {
    padding: 36px 0;
}

.sec-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    gap: 12px;
}

.sec-header h2 {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sec-header .badge {
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface);
    padding: 3px 9px;
    border: 1px solid var(--hairline);
    border-radius: 4px;
    font-weight: 400;
}

.sec-more {
    font-size: 12.5px;
    color: var(--muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.sec-more:hover {
    color: var(--accent);
}

.sec-more svg {
    width: 11px;
    height: 11px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
}

/* ===== 开服卡片网格 ===== */
.server-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    background: var(--hairline);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    overflow: hidden;
}

.server-card {
    background: var(--surface);
    padding: 18px;
    transition: background 200ms ease;
}

.server-card:hover {
    background: var(--accent-soft);
}

.server-card .s-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.server-card .s-name {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.chip {
    display: inline-block;
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 9.5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: 4px;
    line-height: 1.5;
    flex-shrink: 0;
}

.chip--hot {
    background: var(--pale-red-bg);
    color: var(--pale-red-fg);
}

.chip--new {
    background: var(--pale-blue-bg);
    color: var(--pale-blue-fg);
}

.chip--green {
    background: var(--pale-green-bg);
    color: var(--pale-green-fg);
}

.chip--amber {
    background: var(--pale-amber-bg);
    color: var(--pale-amber-fg);
}

.chip--yellow {
    background: var(--pale-yellow-bg);
    color: var(--pale-yellow-fg);
}

.server-card .s-meta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--muted);
}

.server-card .s-meta .l {
    color: var(--muted);
}

.server-card .s-meta .v {
    color: var(--ink);
    font-weight: 500;
}

/* ===== 分类卡片网格 ===== */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--hairline);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    overflow: hidden;
}

.cat-card {
    background: var(--surface);
    padding: 22px;
    transition: background 200ms ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.cat-card:hover {
    background: var(--accent-soft);
}

.cat-card .cat-num {
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.cat-card h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 4px;
    letter-spacing: -0.01em;
}

.cat-card p {
    font-size: 12.5px;
    color: var(--muted);
    margin: 0;
    line-height: 1.5;
}

/* ===== 两栏内容分割 ===== */
.content-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--hairline);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    overflow: hidden;
}

.cs-half {
    background: var(--surface);
    padding: 24px;
}

.cs-half .cs-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: -0.005em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cs-half .cs-title .cs-dot {
    width: 4px;
    height: 4px;
    border-radius: 999px;
    background: var(--accent);
}

/* 推荐阅读 - 精选文章 */
.cs-featured {
    margin-bottom: 16px;
}

.cs-featured .cf-tag {
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 9.5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 2px 7px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 6px;
}

.cs-featured h4 {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 4px;
    line-height: 1.3;
}

.cs-featured h4 a {
    color: var(--ink);
    text-decoration: none;
}

.cs-featured h4 a:hover {
    color: var(--accent);
}

.cs-featured p {
    font-size: 12.5px;
    color: var(--muted);
    margin: 0;
    line-height: 1.5;
}

.cs-featured .cf-meta {
    font-size: 11px;
    color: var(--muted);
    margin-top: 6px;
    font-family: var(--mono, 'JetBrains Mono', monospace);
}

/* 文章列表 */
.cs-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cs-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--hairline);
}

.cs-list li:first-child {
    padding-top: 0;
}

.cs-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.cs-list li a {
    color: var(--ink);
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    line-height: 1.35;
}

.cs-list li a:hover {
    color: var(--accent);
}

.cs-list li .cs-date {
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 10.5px;
    color: var(--muted);
    flex-shrink: 0;
}

/* 最新更新列表 */
.update-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.update-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--hairline);
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.update-list li:first-child {
    padding-top: 0;
}

.update-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.update-list .u-dot {
    width: 5px;
    height: 5px;
    border-radius: 999px;
    background: var(--accent);
    flex-shrink: 0;
    margin-top: 6px;
}

.update-list .u-body {
    flex: 1;
}

.update-list .u-body .u-title {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.35;
}

.update-list .u-body .u-title a {
    color: var(--ink);
    text-decoration: none;
}

.update-list .u-body .u-title a:hover {
    color: var(--accent);
}

.update-list .u-body .u-title .u-cat {
    display: inline-block;
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 9px;
    letter-spacing: 0.05em;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 1px 6px;
    border-radius: 3px;
    margin-left: 6px;
}

.update-list .u-body .u-desc {
    font-size: 12px;
    color: var(--muted);
    margin-top: 2px;
    line-height: 1.5;
}

.update-list .u-date {
    font-family: var(--mono, 'JetBrains Mono', monospace);
    font-size: 10.5px;
    color: var(--muted);
    flex-shrink: 0;
    margin-top: 3px;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
    .server-grid {
        grid-template-columns: 1fr 1fr;
    }
    .cat-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        gap: 24px;
        align-items: flex-start;
    }
    .hero-right {
        width: 100%;
        align-items: stretch;
    }
    .hero-search {
        max-width: 100%;
    }
    .hero-stats {
        justify-content: flex-start;
    }
    .server-grid {
        grid-template-columns: 1fr;
    }
    .cat-grid {
        grid-template-columns: 1fr 1fr;
    }
    .content-split {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 32px 0 24px;
    }
    .hero-stats {
        display: none;
    }
    .hero-text h1 {
        font-size: 22px;
    }
    .cat-grid {
        grid-template-columns: 1fr;
    }
    section {
        padding: 28px 0;
    }
    .server-card {
        padding: 14px;
    }
    .cs-half {
        padding: 18px;
    }
}