@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');
:root {
    --font-family: 'Noto Serif SC', serif;
    --line-height: 1.65;
    --typography-spacing-vertical: 1.2rem;
    --primary: #1e88e5;
    --card-box-shadow: 0 15px 35px rgba(50, 50, 93, 0.1), 0 5px 15px rgba(0, 0, 0, 0.07) !important;
}

:root:not([data-theme=dark]), [data-theme=light] {
    --del-color: color: rgba(23, 43, 77, 0.5);
}

@media only screen and (prefers-color-scheme: dark) {
    :root:not([data-theme=light]) {
        --del-color: color: rgba(23, 43, 77, 0.5);
    }
}

[data-theme=dark] {
    --del-color: color: rgba(23, 43, 77, 0.5);
}

@media (min-width:576px) { :root { --font-size:17px } }
@media (min-width:768px) { :root { --font-size:17px } }
@media (min-width:992px) { :root { --font-size:17px } }
@media (min-width:1200px) { :root { --font-size:17px } }

@media (min-width: 576px) {
    body > footer, body > header, body > main, section {
        --block-spacing-vertical:calc(var(--spacing) * 1)
    }
}
@media (min-width: 768px) {
    body > footer, body > header, body > main, section {
        --block-spacing-vertical:calc(var(--spacing) * 1.5)
    }
}
@media (min-width: 992px) {
    body > footer, body > header, body > main, section {
        --block-spacing-vertical:calc(var(--spacing) * 1.75)
    }
}
@media (min-width: 1200px) {
    body > footer, body > header, body > main, section {
        --block-spacing-vertical: calc(var(--spacing) * 2);
    }
}

html{
    scroll-behavior: smooth;
}

.container {
    max-width: 768px;
    overflow-wrap: break-word;
}

body>header, body>footer, nav {
    text-align: center;
}

body>header {
    padding-top: calc(var(--spacing) * 4);
    padding-bottom: calc(var(--spacing) * 1);
}

section {
    margin-top: var(--block-spacing-vertical);
}

hr {
    --block-spacing-vertical: calc(var(--spacing) * 2);
    margin-top: var(--block-spacing-vertical);
    margin-bottom: var(--block-spacing-vertical);
}

/* What happened here? */
ol, ul {
    padding-inline-start: calc(var(--spacing) * 2)
}

/* 莫名其妙吧，margin-top 0？ */
h1, h2, h3, h4, h5, h6 {
    margin-top: var(--typography-spacing-vertical);
}

/* 莫名其妙吧，margin-bottom 默认设置这么大，有法看么 =_= */
h1 { --typography-spacing-vertical: 1.5rem; }
h2 { --typography-spacing-vertical: 1.25rem; }
h3 { --typography-spacing-vertical: 1.0rem; }
h4 { --typography-spacing-vertical: 0.75rem; }
h5 { --typography-spacing-vertical: 0.5rem; }

.meta-info {
    color: var(--muted-color);
}

.shadow {
    box-shadow: var(--card-box-shadow) !important;
}

.rounded {
    border-radius: var(--border-radius);
}

.circle {
    border-radius: 50%;
}

.headpic {
    border-radius: 100px;
}

.navbar {
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    padding: 0;

    position: sticky;
    top: 0;
    z-index: 1020;

    --font-weight: 500;
    transition: .3s;
}

.navbar a .active {
    border-bottom: solid var(--primary);
}

nav {
    display: flex;
    flex-flow: row wrap;
    justify-content: center;
}

nav a { color: var(--secondary); }
nav a:hover { color: var(--secondary-hover); }
nav a:focus { color: var(--secondary-focus); }

/* 首页摘要里各种标题只用较大的粗体呈现 */
.summary h1, .summary h2, .summary h3, .summary h4, .summary h5 {
    --font-size: 1.125rem;
    --typography-spacing-vertical: 0.5rem;
    font-weight: bold;
    line-height: var(--line-height);
}
.post-content, .summary {
    line-height: 1.65;
}
.post-content p,
.post-content li,
.summary p,
.summary li {
    margin: 0.65em 0;
}

.alert {
    margin: var(--typography-spacing-vertical) 0;
    padding: var(--spacing);
    border-radius: var(--border-radius);
    box-shadow: var(--card-box-shadow);
    background-color: var(--primary);
    color: var(--primary-inverse);
    font-size: var(--font-size);
}

.alert a {
    color: var(--primary-inverse);
    text-decoration: underline;
}

blockquote {
    --font-family: Kai, "Kaiti SC", Georgia, "Times New Roman", Times, KaiTi, BiauKai, 'Noto Serif SC', serif;
    font-family: var(--font-family);
    border-left: 10px solid var(--blockquote-border-color);
    box-shadow: var(--card-box-shadow) !important;
    border-radius: var(--border-radius);
}
blockquote::before {
    --font-family: serif;
    font-family: var(--font-family);
    color: var(--blockquote-border-color);
    content: "“";
    font-size: calc(var(--font-size) * 5);
    line-height: 0;
    position: absolute;
}

code, kbd {
    padding: .2rem .3rem;
}

.post-content img {
    max-height: 600px;
}

.comment-ml {
    margin-left: 40px;
}

.badge {
    display: inline-block;
    padding: 0.35rem 0.375rem;
    font-size: 80%;
    text-align: center;
    vertical-align: baseline;
    line-height: 1;
    border-radius: 0.25rem;
    color: var(--secondary);
    background-color: var(--secondary-inverse);
}

.avatar {
    float: left;
    height: calc(var(--line-height) * 2rem);
    width: calc(var(--line-height) * 2rem);
    margin-right: 10px;
}

.icon-ua {
    height: 16px;
}

footer a {
    --color: var(--secondary);
}

#nis:before {
    content: url(../img/beian.png);
    vertical-align: middle;
    display: inline-block;
    line-height: var(--line-height);
}

/* ========== Uiverse 风格代码块 ========== */
:root{
    --codecard-bg: #f8fafc;
    --codecard-surface: rgba(255,255,255,0.92);
    --codecard-border: rgba(15,23,42,0.08);
    --codecard-header: rgba(15,23,42,0.04);
    --codecard-text: #0f172a;
    --codecard-subtle: #64748b;
    --codecard-shadow: 0 18px 45px rgba(15,23,42,0.08), 0 8px 22px rgba(15,23,42,0.05);
    --codecard-accent: #38bdf8;
    --codecard-scroll: #cbd5e1;
    --codecard-line: rgba(15,23,42,0.08);
    --codecard-font-size: 14px;
    --codecard-line-height: 22px;
    --codecard-font: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
}
[data-theme="dark"]{
    --codecard-bg: #0d1117;
    --codecard-surface: rgba(22,27,34,0.9);
    --codecard-border: rgba(240,246,252,0.1);
    --codecard-header: rgba(13,17,23,0.9);
    --codecard-text: #c9d1d9;
    --codecard-subtle: #8b949e;
    --codecard-shadow: 0 18px 45px rgba(0,0,0,0.45), 0 0 90px rgba(56,189,248,0.12);
    --codecard-accent: #38bdf8;
    --codecard-scroll: #30363d;
    --codecard-line: rgba(48,54,61,0.85);
}

.code-card{
    position: relative;
    margin: 1.2em 0;
    background: var(--codecard-surface);
    border: 1px solid var(--codecard-border);
    border-radius: 16px;
    box-shadow: var(--codecard-shadow);
    overflow: hidden;
}
.code-card__header{
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    padding: 6px 12px;
    background: var(--codecard-header);
    border-bottom: 1px solid var(--codecard-border);
    position: relative;
    min-height: 34px;
}
.code-card__lang{
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 9px;
    border-radius: 8px;
    font-family: var(--codecard-font);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.45px;
    color: var(--codecard-subtle);
    background: rgba(255,255,255,0.08);
    text-transform: uppercase;
}
.code-card__lang.is-empty{
    display: none;
}
[data-theme="dark"] .code-card__lang{
    background: rgba(255,255,255,0.06);
}
.code-card__copy{
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 9px;
    border-radius: 8px;
    border: 1px solid var(--codecard-border);
    background: transparent;
    color: var(--codecard-subtle);
    font-family: var(--codecard-font);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.18s ease;
    position: absolute;
    right: 12px;
    top: 6px;
    line-height: 1;
    appearance: none;
    width: auto;
    min-width: 0;
    height: auto;
    min-height: 0;
    box-shadow: none;
    flex-shrink: 0;
    z-index: 2;
}
.code-card__copy:hover{
    color: var(--codecard-text);
    border-color: var(--codecard-accent);
    box-shadow: 0 0 0 3px rgba(56,189,248,0.15);
}
.code-card__copy.is-success{
    color: #238636;
    border-color: #238636;
}
.code-card__copy svg{
    width: 14px;
    height: 14px;
}
.code-card__body{
    display: flex;
    align-items: stretch;
    overflow: auto;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--codecard-scroll) transparent;
}
.code-card__body::-webkit-scrollbar{
    height: 10px;
}
.code-card__body::-webkit-scrollbar-thumb{
    background: var(--codecard-scroll);
    border-radius: 20px;
}
.code-card__lines{
    flex: 0 0 auto;
    padding: 12px 12px 12px 16px;
    text-align: right;
    background: linear-gradient(180deg, rgba(0,0,0,0.03), rgba(0,0,0,0.015));
    border-right: 1px solid var(--codecard-border);
    color: var(--codecard-subtle);
    user-select: none;
    min-width: 48px;
}
[data-theme="dark"] .code-card__lines{
    background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
}
.code-card__lines span{
    display: block;
    font-family: var(--codecard-font);
    font-size: var(--codecard-font-size);
    line-height: var(--codecard-line-height);
    height: var(--codecard-line-height);
}
.code-card pre{
    margin: 0;
    padding: 12px 16px 12px 12px;
    border: 0;
    background: transparent;
    min-width: 0;
}
.code-card code{
    display: block;
    font-family: var(--codecard-font);
    font-size: var(--codecard-font-size);
    line-height: var(--codecard-line-height);
    color: var(--codecard-text);
    white-space: pre;
    background: transparent;
}
.code-card .hljs{
    background: transparent;
    line-height: var(--codecard-line-height);
}
.code-card .hljs-comment,
.code-card .hljs-quote{ color: var(--codecard-subtle); font-style: italic; }
.code-card .hljs-keyword,
.code-card .hljs-selector-tag,
.code-card .hljs-literal,
.code-card .hljs-name{ color: #ff7b72; font-weight: 700; }
.code-card .hljs-string,
.code-card .hljs-attr,
.code-card .hljs-symbol,
.code-card .hljs-bullet{ color: #a5d6ff; }
.code-card .hljs-built_in,
.code-card .hljs-builtin-name,
.code-card .hljs-number{ color: #f2cc60; }
.code-card .hljs-title,
.code-card .hljs-section,
.code-card .hljs-class .hljs-title{ color: #79c0ff; }
.code-card .hljs-function .hljs-title{ color: #d2a8ff; }
.code-card .hljs-variable,
.code-card .hljs-template-variable,
.code-card .hljs-params{ color: #f2cc60; }
.code-card .hljs-meta{ color: #7ee0ff; }
.code-card .hljs-attribute{ color: #ffa657; }
.code-card .hljs-addition{ color: #2ea043; }
.code-card .hljs-deletion{ color: #f85149; }

/* 兜底：旧的 <pre> 仍保持紧凑 */
.post-content pre,
.summary pre{
    margin: 0;
    padding: 0;
    background: transparent;
}

/* ========== HTML 自定义展示框 ========== */
.htmlbox{
    width: var(--htmlbox-width, 100%);
    max-width: 100%;
    margin: 1.1em 0;
    position: relative;
}
.htmlbox__inner{
    position: relative;
    width: 100%;
    background: rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}
[data-theme="dark"] .htmlbox__inner{
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.12);
    box-shadow: 0 12px 30px rgba(0,0,0,0.45);
}
.htmlbox.is-ratio .htmlbox__inner{
    padding-top: var(--htmlbox-ratio, 56.25%);
}
.htmlbox.is-fixed .htmlbox__inner{
    height: var(--htmlbox-height, 360px);
}
.htmlbox__frame{
    position: absolute;
    inset: 0;
    overflow: auto;
}
.htmlbox__frame iframe.htmlbox__iframe{
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 14px;
    background: #ffffff;
}
[data-scroll="x"] .htmlbox__iframe{
    overflow-x: auto;
    overflow-y: hidden;
}
[data-scroll="y"] .htmlbox__iframe{
    overflow-x: hidden;
    overflow-y: auto;
}
[data-scroll="none"] .htmlbox__iframe{
    overflow: hidden;
}
[data-scroll="auto"] .htmlbox__iframe{
    overflow: auto;
}
[data-theme="dark"] .htmlbox__frame iframe{
    background: #0d1117;
}