/* PureblueAI 科学GEO Blog - Brand 官网设计规范主题
 * 来源：Figma《Brand品牌/官网》pureblueai-design-system-zh + 品牌VI 2.01-3.03
 * 核心：深色背景、蓝紫品红品牌渐变、OPPO Sans/PingFang、胶囊按钮、面板卡片、光晕
 * 在 style.css 之后加载，覆盖变量与关键组件样式
 */

/* ========== 设计令牌重定义 ========== */
:root {
    /* ---- 品牌渐变 ---- */
    --grad-primary: linear-gradient(90deg, #4E5DFF 0%, #7952FF 48%, #C83AFF 100%);
    --grad-secondary: linear-gradient(90deg, #214FE8 0%, #6F3ADD 100%);
    --grad-hero-bg: linear-gradient(180deg, #07103A 0%, #020418 52%, #0C0730 100%);
    --grad-panel: linear-gradient(180deg, #121957 0%, #080D34 100%);

    /* ---- 品牌色 ---- */
    --brand-blue: #4E5DFF;
    --brand-purple: #7952FF;
    --brand-magenta: #C83AFF;
    --glow: #704BFF;
    --info: #55D7FF;

    /* ---- 主题 token（与 JS 内联样式对齐） ---- */
    --primary: #4E5DFF;
    --primary-dark: #214FE8;
    --secondary: #C83AFF;
    --accent: #55D7FF;
    --dark: #F7F8FF;
    --white: #020418;

    /* ---- 中性色 / 表面 ---- */
    --bg-page: #020418;
    --bg-panel: #080D34;
    --surface-card: #0E1550;
    --surface-input: #070C31;
    --surface-btn-2nd: #0C1247;
    --border-strong: #5368EB;
    --border-card: #304495;
    --border-btn-2nd: #9486FF;
    --border-input: #6578F3;

    /* ---- 文字 ---- */
    --text-primary: #F7F8FF;
    --text-secondary: #AEB8E8;
    --text-caption: #8D99CA;
    --text-label: #A896FF;

    /* ---- 状态色 ---- */
    --success: #20C997;
    --warning: #FFB547;
    --error: #FF5C7A;

    /* ---- 灰阶（用于旧 JS 内联翻转语义） ---- */
    --gray-900: #07103A;
    --gray-800: #0C0730;
    --gray-700: #121957;
    --gray-600: rgba(174, 184, 232, .6);
    --gray-500: rgba(174, 184, 232, .5);
    --gray-400: rgba(141, 153, 202, .5);
    --gray-200: rgba(83, 104, 235, .4);
    --gray-100: rgba(255, 255, 255, .04);

    /* ---- 字体 ---- */
    --font-ui: "OPPO Sans 4.0", "PingFang SC", "Inter", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;

    /* ---- 间距/圆角 ---- */
    --sp-section: 64px;
    --r-control: 12px;
    --r-card: 16px;
    --r-modal: 20px;
    --r-pill: 999px;

    /* ---- 表面/装饰 ---- */
    --surface: rgba(14, 21, 80, .5);
    --surface-hover: rgba(18, 25, 87, .7);
    --gradient-primary: var(--grad-primary);
    --gradient-hero: var(--grad-hero-bg);
    --glow-purple: 0 0 40px rgba(112, 75, 255, .35);
    --glow-cyan: 0 0 40px rgba(85, 215, 255, .35);
    --shadow-e1: 0 8px 24px rgba(0, 0, 0, .28);
}

/* ========== 全局背景与装饰 ========== */
body {
    background: var(--gradient-hero);
    background-attachment: fixed;
    color: var(--text-secondary);
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -2;
    background-image:
        linear-gradient(rgba(112, 75, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(112, 75, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
}

body::after {
    content: '';
    position: fixed;
    top: -10%;
    right: -5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(112, 75, 255, 0.22) 0%, transparent 65%);
    pointer-events: none;
    z-index: -1;
    filter: blur(40px);
}

/* ========== 导航：对齐官网标准头部（2026-09-28） ==========
   全宽通栏 + 底部细边框 + 1056px 内容区 + 150px 深色版 logo，
   与官网 Header 规格一致（h-14=56px、border-b、logo-night.png w-[150px]）。
   原悬浮胶囊玻璃态样式弃用（仅剩 logo 后胶囊观感与官网差异明显）。 */
.global-nav {
    background: rgba(2, 4, 24, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: 0 40px;
}

.nav-inner {
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    height: 56px;
    max-width: 1056px;
    margin: 0 auto;
}

/* 官网标准 logo（深色版·完整字标「PureblueAI 清蓝」，与官网测试分支同源）：
   替换原 P 字胶囊 + 文字占位（2026-09-28）。注意 main 分支同名文件是
   旧版字标（无「清蓝」），取素材须用 feat/test 分支的版本。 */
.nav-logo-img {
    width: 180px;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .global-nav { padding: 0 20px; }
    .nav-logo-img { width: 140px; }
}

.nav-links a {
    border-radius: var(--r-pill);
}

.nav-links a.active {
    color: #55D7FF;
    background: rgba(85, 215, 255, 0.08);
}

.nav-btn-primary,
.nav-btn-outline {
    border-radius: var(--r-pill);
}

.nav-btn-primary {
    box-shadow: 0 0 20px rgba(112, 75, 255, 0.4);
}

.nav-dropdown {
    background: rgba(2, 4, 24, 0.95);
    border: 1px solid rgba(83, 104, 235, 0.3);
    border-radius: var(--r-card);
    backdrop-filter: blur(20px);
}

.nav-dropdown a:hover {
    background: rgba(83, 104, 235, 0.15);
    color: var(--text-primary);
}

/* ========== 面包屑 ========== */
.breadcrumb {
    background: transparent;
    border-bottom: none;
    backdrop-filter: none;
    padding: 12px 0;
}

.breadcrumb a {
    color: var(--text-caption);
}

.breadcrumb a:hover {
    color: var(--text-primary);
}

.breadcrumb .sep {
    color: var(--border-card);
}

.breadcrumb .current {
    color: var(--accent);
}

/* ========== 原型头部 ========== */
.proto-header {
    background: var(--grad-panel);
    border: 1px solid rgba(83, 104, 235, 0.25);
    border-radius: var(--r-card);
    box-shadow: inset 0 0 80px rgba(112, 75, 255, 0.08), 0 20px 60px rgba(0, 0, 0, 0.4);
}

.proto-header::before {
    background: radial-gradient(ellipse at center, rgba(112, 75, 255, 0.12) 0%, transparent 70%);
}

.proto-header h1 span {
    background: linear-gradient(135deg, #FFFFFF 0%, #A896FF 50%, #55D7FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ========== 频道 Hero ========== */
.channel-hero {
    background: var(--gradient-hero);
    border: 1px solid rgba(112, 75, 255, 0.12);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.channel-hero::before {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(112, 75, 255, 0.18) 0%, transparent 65%);
    filter: blur(20px);
}

.channel-hero-info .channel-label {
    background: rgba(112, 75, 255, 0.2) !important;
    border: 1px solid rgba(112, 75, 255, 0.3);
    box-shadow: 0 0 20px rgba(112, 75, 255, 0.2);
}

.channel-hero-stat .stat-num {
    background: linear-gradient(135deg, #FFFFFF 0%, #A896FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.channel-hero-visual .visual-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

.channel-hero-visual .visual-card:hover {
    border-color: rgba(112, 75, 255, 0.4);
    box-shadow: 0 0 30px rgba(112, 75, 255, 0.2);
    transform: translateY(-2px);
}

.visual-card-link {
    text-decoration: none;
    color: inherit;
}

.visual-card-icon {
    background: rgba(112, 75, 255, 0.15) !important;
    color: #A896FF !important;
    box-shadow: 0 0 16px rgba(112, 75, 255, 0.25);
}

/* ========== 筛选栏与频道切换 ========== */
.channel-switch {
    margin-bottom: 18px;
}

.chan-pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
}

.chan-pill:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--c, #4E5DFF);
    color: var(--c, #A896FF);
    box-shadow: 0 0 20px color-mix(in srgb, var(--c, #4E5DFF) 25%, transparent);
}

.chan-pill.active {
    box-shadow: 0 0 24px color-mix(in srgb, var(--c, #4E5DFF) 40%, transparent);
}

.filter-bar {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.filter-bar .filter-label {
    color: rgba(255, 255, 255, 0.5);
}

.filter-tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.65);
}

.filter-tag:hover,
.filter-tag.active {
    background: rgba(112, 75, 255, 0.15);
    border-color: rgba(112, 75, 255, 0.5);
    color: #A896FF;
    box-shadow: 0 0 16px rgba(112, 75, 255, 0.2);
}

.filter-tag.active {
    background: linear-gradient(135deg, rgba(112, 75, 255, 0.8), rgba(85, 215, 255, 0.8));
    color: white;
    border-color: transparent;
}

.sort-select {
    background: #0A0E27;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* 下拉选项：白字黑底，保证未展开/未悬停时也清晰可读 */
.sort-select option {
    background: #0A0E27;
    color: #fff;
}

/* ========== 文章卡片 ========== */
.section-title h2 {
    color: #F7F8FF;
}

.section-title h2 .dot {
    background: #55D7FF;
    box-shadow: 0 0 12px rgba(85, 215, 255, 0.6);
}

.article-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    position: relative;
}

.article-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(78, 93, 255, 0), rgba(200, 58, 255, 0));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.article-card:hover {
    border-color: rgba(112, 75, 255, 0.55);
    box-shadow:
        0 16px 56px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(78, 93, 255, 0.12),
        0 0 48px rgba(112, 75, 255, 0.28);
    transform: translateY(-4px);
}

.article-card:hover::before {
    opacity: 1;
    background: linear-gradient(135deg, rgba(78, 93, 255, 0.55), rgba(200, 58, 255, 0.35));
}

.article-card-title {
    color: #F7F8FF;
    transition: color 0.25s ease;
}

.article-card-title:hover {
    color: #A896FF;
}

.article-card-excerpt {
    color: rgba(255, 255, 255, 0.55);
}

.article-card-meta {
    color: rgba(255, 255, 255, 0.45);
}

.article-tag {
    background: rgba(112, 75, 255, 0.1);
    border: 1px solid rgba(112, 75, 255, 0.2);
    color: #A896FF;
    transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.article-tag:hover {
    background: rgba(112, 75, 255, 0.28);
    border-color: rgba(112, 75, 255, 0.55);
    box-shadow: 0 0 16px rgba(112, 75, 255, 0.35);
    transform: translateY(-1px);
}

/* ========== 分页 ========== */
.pagination button {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.6);
}

.pagination button:hover {
    border-color: rgba(112, 75, 255, 0.4);
    color: #A896FF;
}

.pagination button.active {
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(112, 75, 255, 0.4);
}

/* ========== 侧边栏 ========== */
.sidebar-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.sidebar-card-header {
    color: #F7F8FF;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-card-header i {
    color: #55D7FF;
}

.cta-banner-sidebar {
    background: linear-gradient(135deg, rgba(112, 75, 255, 0.18), rgba(85, 215, 255, 0.12));
    border: 1px solid rgba(112, 75, 255, 0.2);
    box-shadow: inset 0 0 60px rgba(112, 75, 255, 0.1), 0 10px 40px rgba(0, 0, 0, 0.3);
}

.cta-banner-sidebar::before {
    background: radial-gradient(ellipse at top, rgba(112, 75, 255, 0.25), transparent 70%);
}

.cta-btn {
    box-shadow: 0 0 24px rgba(112, 75, 255, 0.45);
}

.cta-btn:hover {
    box-shadow: 0 0 34px rgba(112, 75, 255, 0.6);
}

.tag-cloud a {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.65);
}

.tag-cloud a:hover,
.tag-cloud a.hot {
    background: rgba(85, 215, 255, 0.1);
    border-color: rgba(85, 215, 255, 0.4);
    color: #55D7FF;
    box-shadow: 0 0 14px rgba(85, 215, 255, 0.2);
}

.tag-cloud a.hot {
    background: linear-gradient(135deg, rgba(85, 215, 255, 0.8), rgba(112, 75, 255, 0.8));
    color: white;
    border-color: transparent;
}

.popular-article {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.popular-article:hover .pop-title {
    color: #A896FF;
}

.popular-rank {
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.5);
}

.popular-rank.top {
    background: rgba(200, 58, 255, 0.15);
    color: #C83AFF;
    box-shadow: 0 0 12px rgba(200, 58, 255, 0.25);
}

.pop-title {
    color: rgba(255, 255, 255, 0.85);
}

.pop-meta {
    color: rgba(255, 255, 255, 0.4);
}

/* ========== 文章详情页 ========== */
.article-detail-header {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.article-detail-header h1 {
    color: #F7F8FF;
    background: linear-gradient(135deg, #FFFFFF 0%, #A896FF 60%, #55D7FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.article-meta-bottom {
    color: rgba(255, 255, 255, 0.45);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.article-toc {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.article-toc h4 {
    color: #F7F8FF;
}

.article-toc ol li {
    color: rgba(255, 255, 255, 0.55);
}

.article-toc ol li.toc-section::before {
    color: rgba(255, 255, 255, 0.4);
}

.article-toc ol li.toc-section a {
    color: #A896FF;
}

.article-toc ol li.toc-h3 a {
    color: rgba(255, 255, 255, 0.5);
}

.article-toc ol li .toc-anchor.active {
    color: #55D7FF;
}

.article-body {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.article-section h2 {
    color: #F7F8FF;
    border-bottom: 2px solid rgba(112, 75, 255, 0.2);
}

.article-section h2 .num {
    color: #A896FF;
    text-shadow: 0 0 16px rgba(112, 75, 255, 0.5);
}

.article-section h3 {
    color: #55D7FF;
}

.article-section p,
.article-section li {
    color: rgba(255, 255, 255, 0.7);
}

.article-summary {
    background: rgba(112, 75, 255, 0.08);
    border-left: 4px solid #4E5DFF;
    color: rgba(255, 255, 255, 0.75);
}

.article-summary strong {
    color: #A896FF;
}

.article-highlight {
    background: linear-gradient(135deg, rgba(112, 75, 255, 0.1), rgba(85, 215, 255, 0.08));
    border: 1px solid rgba(112, 75, 255, 0.15);
    border-radius: 12px;
}

.article-highlight p {
    color: rgba(255, 255, 255, 0.75);
}

.article-tags-row {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.article-tags-row .label {
    color: rgba(255, 255, 255, 0.5);
}

/* FAQ 内联问答（作为正文内容，不单独成模块） */
.faq-inline { }
.faq-pair { margin: 16px 0; }
.faq-pair .faq-q { margin: 0 0 6px; font-size: 16px; font-weight: 700; color: #F7F8FF; }
.faq-pair .faq-a { margin: 0; font-size: 15px; color: rgba(255, 255, 255, 0.65); line-height: 1.85; }

/* 底部 CTA */
.article-footer-cta {
    background: linear-gradient(135deg, rgba(112, 75, 255, 0.12), rgba(85, 215, 255, 0.08));
    border: 1px solid rgba(112, 75, 255, 0.18);
    box-shadow: inset 0 0 60px rgba(112, 75, 255, 0.08), 0 10px 40px rgba(0, 0, 0, 0.3);
}

.article-footer-cta::before {
    background: radial-gradient(ellipse at center, rgba(85, 215, 255, 0.12), transparent 70%);
}

/* 相关文章 */
.related-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
}

.related-card:hover {
    border-color: rgba(85, 215, 255, 0.35);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(85, 215, 255, 0.15);
}

.related-card-body h4 {
    color: #F7F8FF;
}

.related-card-body .rel-meta {
    color: rgba(255, 255, 255, 0.4);
}

/* ========== 标签聚合页/标签云 ========== */
.tag-page-header {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.tag-page-header h1 {
    color: #F7F8FF;
}

.tag-page-header p {
    color: rgba(255, 255, 255, 0.5);
}

.tag-page-header .tag-count .num {
    color: #A896FF;
    text-shadow: 0 0 20px rgba(112, 75, 255, 0.4);
}

.tag-cloud-grid {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.tag-size-group h4 {
    color: rgba(255, 255, 255, 0.5);
}

.tag-size-group a {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.65);
}

.tag-size-group a:hover {
    background: rgba(85, 215, 255, 0.1);
    border-color: rgba(85, 215, 255, 0.4);
    color: #55D7FF;
}

.article-compact {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-compact:hover {
    border-color: rgba(112, 75, 255, 0.3);
    box-shadow: 0 4px 24px rgba(112, 75, 255, 0.12);
}

.article-compact-info h3 {
    color: #F7F8FF;
}

.article-compact-info h3:hover {
    color: #A896FF;
}

.article-compact-info p,
.article-compact-meta {
    color: rgba(255, 255, 255, 0.5);
}

/* ========== Footer ========== */
.footer {
    background: rgba(8, 5, 16, 0.8);
    border-top: 1px solid rgba(112, 75, 255, 0.12);
    backdrop-filter: blur(10px);
}

/* ========== 响应式微调 ========== */
@media (max-width: 1024px) {
    .channel-hero {
        flex-direction: column;
    }
    .channel-hero-visual {
        width: 100%;
    }
}

/* ============================================================
   规范收口：圆角 / 按钮 / 描边 / 焦点
   对齐 Figma 设计规范「四、布局系统」：
   圆角 控件 12 · 卡片 16 · 弹窗 20 · 导航与按钮 胶囊 999
   常规描边 1px #5368EB @40%；焦点 2px #55D7FF
   ============================================================ */

/* 卡片统一 16 */
.article-card,
.article-compact,
.article-detail-header,
.article-body,
.article-toc,
.article-highlight,
.article-summary,
.article-footer-cta,
.related-card,
.sidebar-card,
.cta-banner-sidebar,
.tag-page-header,
.tag-cloud-grid,
.channel-hero,
.visual-card,
.proto-header,
.ch-card {
    border-radius: var(--r-card);
}

/* 控件统一 12 */
.sort-select,
.filter-tag,
.chan-pill,
.tag-cloud a,
.tag-size-group a,
.article-tag,
.channel-badge,
.channel-tag,
.pagination button {
    border-radius: var(--r-control);
}

/* 导航与主动作按钮：胶囊 */
.nav-btn-primary,
.nav-btn-outline,
.cta-btn,
.mobile-nav-actions a {
    border-radius: var(--r-pill);
}

/* 主按钮：品牌主渐变 + 光晕（悬浮亮度 +8%） */
.nav-btn-primary,
.cta-btn {
    background: var(--gradient-primary);
    border: none;
    color: #fff;
    box-shadow: 0 0 20px rgba(112, 75, 255, 0.4);
}

.nav-btn-primary:hover,
.cta-btn:hover {
    filter: brightness(1.08);
}

/* 次要按钮：次按钮底 #0C1247 / 描边 #9486FF */
.nav-btn-outline {
    background: var(--surface-btn-2nd);
    border: 1px solid var(--border-btn-2nd);
    color: var(--text-primary);
}

/* 卡片描边：常规描边 1px #5368EB @40% */
.article-card,
.article-compact,
.sidebar-card,
.related-card,
.tag-page-header,
.tag-cloud-grid,
.ch-card {
    border: 1px solid rgba(83, 104, 235, 0.4);
}

/* 焦点态：2px #55D7FF */
a:focus-visible,
button:focus-visible,
select:focus-visible {
    outline: 2px solid var(--info);
    outline-offset: 2px;
}

/* ========== SSR 详情页封面：统一 16:9 自适应裁切 ==========
   注意：官网代理只搬运 <link> 样式表，不搬页面内联 <style>，
   详情页专属样式必须写在这里（或 style.css），不能放 ssr.js 内联。 */
.cover-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 14px;
    margin: 18px 0;
}

/* 热门文章改为 a 标签承载跳转后，去掉链接默认样式。
   display 必须保持 flex（与 style.css 的 .popular-article 一致）：
   写成 block 会以更高优先级覆盖 flex，序号与标题会堆成两行。 */
a.popular-article {
    text-decoration: none;
    color: inherit;
    display: flex;
}

/* ========== SSR 列表页分页按钮 ==========
   这组样式原写在 buildListPage 的内联 <style> 里；官网代理只搬运 <link> 样式表、
   丢弃内联样式，导致官网 /blog 的分页渲染成裸文本。落进样式表后两种壳共用。
   与 ssr.js buildListPage 内联块保持一致，改动需两处同步。 */
.pg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    color: rgba(255, 255, 255, .6);
    text-decoration: none;
}
.pg:hover {
    border-color: rgba(112, 75, 255, .45);
    color: #A896FF;
}
.pg.active {
    background: linear-gradient(90deg, #4E5DFF 0%, #7952FF 48%, #C83AFF 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 18px rgba(112, 75, 255, .4);
}
.pg.disabled {
    opacity: .4;
    pointer-events: none;
}

/* ========== 防横向溢出：大图/长词不得撑破正文列 ==========
   栅格子项默认 min-width:auto，会被大尺寸原图的固有宽度撑爆整列。 */
.page-wrapper.article-layout > * {
    min-width: 0;
}
.article-body img,
.article-section img,
.faq-pair img {
    max-width: 100%;
    height: auto;
}
.article-body {
    overflow-wrap: break-word;
}

/* ========== SSR 页面样式（自 ssr.js 内联块迁入） ==========
   官网代理只搬运 <link> 样式表、丢弃页面内联 <style>，SSR 页（列表/频道/分类/
   标签/404）的整页样式原来只存在于内联块，在官网上全部失效。迁入样式表后
   两种壳共用；ssr.js 已不再输出内联样式，改动只维护这一处。 */
/* ---- SSR 公共：导航/页脚 ---- */
.ssr-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-bottom: 1px solid rgba(83, 104, 235, .25);
    position: sticky;
    top: 0;
    background: rgba(2, 4, 24, .8);
    backdrop-filter: blur(20px);
    z-index: 10;
}
.ssr-nav .brand {
    font-weight: 700;
    color: #4E5DFF;
}
.ssr-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
}
.ssr-footer {
    text-align: center;
    color: #8D99CA;
    font-size: 13px;
    padding: 30px;
    border-top: 1px solid rgba(83, 104, 235, .25);
}
/* ---- SSR 列表页 ---- */
.blog-root {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}
.blog-main {
    min-width: 0;
}
@media (max-width: 900px) {
    .blog-root { grid-template-columns: 1fr; }
    .sidebar { margin-top: 24px; }
}
/* ---- SSR 频道/分类/标签页（卡片栅格） ---- */
.ch-wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 32px 20px 80px;
}
.ch-head {
    margin-bottom: 18px;
}
.ch-head h1 {
    font-size: 30px;
    margin: 0 0 8px;
}
.ch-head .ch-desc {
    color: #8D99CA;
    line-height: 1.7;
    max-width: 760px;
}
.ch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 22px;
}
.ch-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    background: rgba(14, 21, 80, .5);
    border: 1px solid rgba(83, 104, 235, .25);
    border-radius: 14px;
    overflow: hidden;
    transition: box-shadow .2s, transform .2s;
}
.ch-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, .45), 0 0 24px rgba(112, 75, 255, .25);
    transform: translateY(-2px);
    border-color: rgba(112, 75, 255, .45);
}
.ch-card-thumb {
    height: 160px;
    background: rgba(14, 21, 80, .6);
    overflow: hidden;
}
.ch-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.ch-card-body {
    padding: 14px 16px 18px;
}
.ch-card-body h3 {
    font-size: 17px;
    margin: 0 0 8px;
    line-height: 1.4;
}
.ch-card-body p {
    color: #8D99CA;
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 10px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ch-card-date {
    font-size: 12px;
    color: #8D99CA;
}
/* ---- SSR 文章页（深色主题细排；基础布局在 style.css） ---- */
.page-wrapper.article-layout {
    grid-template-columns: 1fr 320px;
    gap: 32px;
    align-items: start;
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 20px 80px;
}
@media (max-width: 1024px) {
    .page-wrapper.article-layout { grid-template-columns: 1fr; }
    .article-toc-wrap { order: -1; }
}
.article-detail-header h1 {
    font-size: 30px;
    line-height: 1.3;
    margin: 10px 0 16px;
}
.article-meta-top {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 13px;
    color: #8D99CA;
}
.channel-tag {
    color: #fff;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
}
.article-meta-bottom {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: #8D99CA;
    border-top: 1px solid rgba(83, 104, 235, .25);
    margin-top: 18px;
    padding-top: 14px;
    flex-wrap: wrap;
}
.article-section {
    margin: 26px 0;
}
.article-section h2 {
    font-size: 22px;
    border-left: 4px solid #4E5DFF;
    padding-left: 12px;
    margin: 22px 0 12px;
}
.article-section h3 {
    font-size: 18px;
    margin: 16px 0 8px;
    color: #F7F8FF;
}
.faq-inline h2 {
    border-left-color: #55D7FF;
}
.faq-pair {
    margin: 16px 0;
}
.faq-pair .faq-q {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 700;
    color: #F7F8FF;
}
.faq-pair .faq-a {
    margin: 0;
    color: #AEB8E8;
    line-height: 1.85;
    font-size: 15px;
}
.article-highlight {
    background: linear-gradient(135deg, rgba(78, 93, 255, .06), rgba(85, 215, 255, .06));
    border: 1px solid rgba(78, 93, 255, .12);
    border-radius: 12px;
    padding: 14px 18px;
    margin: 14px 0;
}
blockquote.article-highlight {
    border-left: 4px solid #55D7FF;
}
/* ---- SSR 404 页 ---- */
.nf-wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 20px 80px;
    text-align: center;
}
.nf-code {
    font-size: 96px;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #4E5DFF, #55D7FF);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.nf-title {
    font-size: 24px;
    margin: 18px 0 10px;
    color: #F7F8FF;
}
.nf-msg {
    color: #8D99CA;
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 28px;
}
.nf-btn {
    display: inline-block;
    background: linear-gradient(90deg, #4E5DFF 0%, #7952FF 48%, #C83AFF 100%);
    color: #fff;
    text-decoration: none;
    padding: 11px 24px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(112, 75, 255, .4);
}
.nf-btn:hover {
    filter: brightness(1.08);
}