/*
 * 虫虫开发者社区 - 全站中文设计系统 (现代中文开发者社区极简风格)
 * 字体体系：优先搭载鸿蒙黑体 / 小米兰亭 / 阿里普惠体 / 苹方 / 思源黑体 / 微软雅黑，针对中文长文与技术资料列表优化行高与字距
 * 色彩体系：浅灰白护眼画布 (#f4f5f7) + 纯白微边框卡片 (#ffffff / #e5e6eb) + 石墨黑正文 (#1d2129) + 掘金极客蓝主色 (#1e80ff / #4f46e5)
 * 严格遵循 FRONTEND_STANDARDS.md <= 400 行规范
 */
:root {
    --ee-color-brand: #1e80ff;
    --ee-color-brand-dark: #1171ee;
    --ee-color-brand-soft: #eaf2ff;
    --ee-color-brand-border: #baddff;
    --ee-color-indigo: #4f46e5;
    --ee-color-indigo-soft: #eef2ff;
    --ee-color-navy: #1d2129;
    --ee-color-navy-light: #272e3b;
    --ee-color-ink: #1d2129;
    --ee-color-text: #4e5969;
    --ee-color-muted: #86909c;
    --ee-color-subtle: #c9cdd4;
    --ee-color-line: #e5e6eb;
    --ee-color-line-strong: #c9cdd4;
    --ee-color-panel: #ffffff;
    --ee-color-canvas: #f4f5f7;
    --ee-color-surface-subtle: #f7f8fa;
    --ee-color-blue: #1e80ff;
    --ee-color-green: #00b42a;
    --ee-color-amber: #ff7d00;
    --ee-color-red: #f53f3f;
    --ee-shadow-xs: 0 1px 2px rgba(29, 33, 41, 0.04);
    --ee-shadow-sm: 0 2px 6px rgba(29, 33, 41, 0.05);
    --ee-shadow-md: 0 8px 24px rgba(29, 33, 41, 0.08);
    --ee-radius-sm: 4px;
    --ee-radius: 8px;
    --ee-radius-md: 8px;
    --ee-radius-lg: 10px;
    --ee-width: 1280px;
    --ee-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    --ee-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, "PingFang SC", "Microsoft YaHei", monospace;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    color-scheme: light;
    scroll-padding-top: 80px;
}

body.ee-site {
    margin: 0;
    background-color: var(--ee-color-canvas);
    color: var(--ee-color-ink);
    font-family: var(--ee-font-sans);
    font-size: 14px;
    line-height: 1.6;
    letter-spacing: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.ee-site a {
    color: var(--ee-color-ink);
    text-decoration: none;
    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.ee-site a:hover {
    color: var(--ee-color-brand);
    text-decoration: none;
}

.ee-site img {
    max-width: 100%;
    height: auto;
}

/* 消除 Bootstrap .container 固定 1170px 与内边距冲突，保证全站 1280px 对齐 */
.ee-site .container,
.ee-site .ee-container {
    width: 100% !important;
    max-width: var(--ee-width) !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.ee-site .container::before,
.ee-site .container::after {
    display: none !important;
}

.main-content {
    min-height: 75vh;
    padding: 18px 16px 44px;
    background: transparent !important;
}

.ee-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    margin-bottom: 8px;
    border-radius: 999px;
    background: var(--ee-color-brand-soft);
    border: 1px solid var(--ee-color-brand-border);
    color: var(--ee-color-brand);
    font-size: 12px;
    font-weight: 600;
}

.ee-meta {
    font-size: 12.5px;
    color: var(--ee-color-muted);
    font-weight: 500;
}

/* 中文徽章与标签组件 */
.ee-badge,
.v2-badge-new,
.dl-item__badge {
    display: inline-flex;
    align-items: center;
    height: 20px;
    padding: 0 7px;
    border-radius: 4px;
    background: #e8ffea;
    border: 1px solid #aff0b5;
    color: #009a29;
    font-size: 11.5px;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
}

.ee-tag,
.dl-item__tag,
.dl-cloud__tag {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 2px 9px;
    border: 1px solid transparent;
    border-radius: 4px;
    background: #f2f3f5;
    color: var(--ee-color-text);
    font-size: 12px;
    line-height: 1.4;
    white-space: nowrap;
}

.ee-tag:hover,
.dl-item__tag:hover,
.dl-cloud__tag:hover {
    background: var(--ee-color-brand-soft);
    color: var(--ee-color-brand);
}

/* 返回顶部悬浮按钮 */
.ee-backtop {
    position: fixed;
    right: 24px;
    bottom: 28px;
    z-index: 999;
    width: 42px;
    height: 42px;
    border: 1px solid var(--ee-color-line);
    border-radius: 50%;
    background: #ffffff;
    color: var(--ee-color-ink);
    box-shadow: var(--ee-shadow-md);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: all 0.18s ease;
}

.ee-backtop:hover {
    border-color: var(--ee-color-brand);
    background: var(--ee-color-brand);
    color: #ffffff;
}

.ee-backtop--visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* 统一中文面包屑导航条 */
.unified-breadcrumb,
.breadcrumb-nav,
.detail-breadcrumb,
.vip-breadcrumb,
.breadcrumb {
    width: 100%;
    max-width: var(--ee-width);
    margin: 0 auto 14px !important;
    padding: 9px 16px;
    background: #ffffff;
    border: 1px solid var(--ee-color-line);
    border-radius: var(--ee-radius);
    font-size: 13px;
    color: var(--ee-color-muted);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    box-sizing: border-box;
}

.dl-page > .unified-breadcrumb,
.dl-page > .breadcrumb-nav,
.search-wrapper > .unified-breadcrumb,
.soft-page > .unified-breadcrumb,
.vip-list-container > .unified-breadcrumb,
.vip-list-container > .vip-breadcrumb {
    margin-bottom: 0 !important;
}

.unified-breadcrumb__link,
.breadcrumb-nav a {
    color: var(--ee-color-text) !important;
}

.unified-breadcrumb__link:hover,
.breadcrumb-nav a:hover {
    color: var(--ee-color-brand) !important;
}

.unified-breadcrumb__sep,
.breadcrumb-sep {
    color: var(--ee-color-subtle);
}

.unified-breadcrumb__current,
.breadcrumb-current {
    color: var(--ee-color-ink);
    font-weight: 500;
}