:root {
    color-scheme: light;
    --text: #151a24;
    --text-soft: #4f5969;
    --paper: #f5f7fb;
    --surface: #ffffff;
    --surface-soft: #f0f4ff;
    --line: rgba(24, 38, 68, 0.12);
    --signal: #0f61ff;
    --signal-soft: #dcebff;
    --signal-strong: #0a4fe0;
    --accent: #0ea5a7;
    --accent-soft: #d7f5f5;
    --veil-core: rgba(14, 76, 255, 0.15);
    --veil-core-soft: rgba(14, 165, 167, 0.08);
    --section-rim: rgba(14, 76, 114, 0.18);
    --max: 1100px;
    --article: 760px;
    --radius: 18px;
    --easing: cubic-bezier(0.2, 0.75, 0.25, 1);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--paper);
}

body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 14% 8%, rgba(14, 76, 255, 0.16), transparent 36%),
        radial-gradient(circle at 80% 2%, rgba(14, 165, 167, 0.2), transparent 28%),
        radial-gradient(circle at 50% 72%, rgba(14, 76, 255, 0.09), transparent 48%),
        linear-gradient(150deg, rgba(255, 255, 255, 0.98), #f4f7fd 40%, var(--paper));
    font-family: "Space Grotesk", "Manrope", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.72;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -2;
    background:
        radial-gradient(circle at 8% 20%, var(--section-rim), transparent 45%),
        radial-gradient(circle at 82% 18%, rgba(11, 165, 167, 0.2), transparent 42%),
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: auto, auto, 86px 86px, 86px 86px;
    mix-blend-mode: soft-light;
    opacity: 0.72;
}

.owv-sky-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    width: 100dvw;
    height: 100vh;
    height: 100dvh;
    pointer-events: none;
    z-index: -1;
    opacity: 0.88;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(1.4px 1.4px at 8% 18%, rgba(14, 76, 255, 0.2), transparent 58%),
        radial-gradient(1.4px 1.4px at 32% 70%, rgba(14, 165, 167, 0.16), transparent 52%),
        radial-gradient(1.4px 1.4px at 78% 42%, rgba(14, 76, 255, 0.14), transparent 50%),
        radial-gradient(1.4px 1.4px at 90% 82%, rgba(14, 165, 167, 0.11), transparent 46%);
    background-size: 140px 140px;
    opacity: 0.48;
    z-index: -1;
}

@media (prefers-reduced-motion: reduce) {
    .owv-sky-canvas {
        display: none;
    }
}

a {
    color: var(--signal);
    text-underline-offset: 0.16em;
}

a:hover {
    color: var(--signal-strong);
}

.content-shell,
.site-footer {
    width: min(calc(100% - 32px), var(--max));
    margin-left: auto;
    margin-right: auto;
}

.site-header {
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding-left: 16px;
    padding-right: 16px;
    display: flex;
    min-height: 84px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    position: sticky;
    top: 0;
    z-index: 1;
    background: transparent;
    box-shadow: inset 0 -1px 0 color-mix(in oklab, var(--line) 50%, transparent);
    backdrop-filter: none;
}

.brand {
    color: var(--text);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px 18px;
    font-size: 14px;
}

.nav a {
    color: var(--text-soft);
    text-decoration: none;
}

.nav a:hover {
    color: var(--signal);
}

.content-shell {
    position: relative;
    isolation: isolate;
    padding-bottom: 32px;
}

.hero,
.page-heading {
    padding: 78px 0 44px;
    position: relative;
    isolation: isolate;
    box-shadow: inset 0 -1px 0 color-mix(in oklab, var(--line) 42%, transparent);
}

.hero::before,
.page-heading::before {
    content: "";
    position: absolute;
    inset: -1px -24px;
    background:
        linear-gradient(to right, transparent 0%, rgba(255, 255, 255, 0.38) 50%, transparent 100%),
        radial-gradient(circle at 50% 10%, var(--veil-core-soft), transparent 65%);
    pointer-events: none;
    mix-blend-mode: screen;
    opacity: 0.75;
    z-index: -1;
}

.hero h1,
.page-heading h1,
.article-header h1 {
    max-width: 900px;
    margin: 0;
    font-size: 54px;
    line-height: 1.04;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.brand-kicker,
.lead {
    max-width: 760px;
}

.brand-kicker {
    margin: 0 0 12px;
    color: var(--signal);
    font-size: 14px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.lead {
    margin: 20px 0 0;
    color: var(--text-soft);
    font-size: 21px;
    line-height: 1.56;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--accent);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.11em;
}

.dimension-band {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.dimension-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    color: var(--text-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    font-size: 12px;
    letter-spacing: 0.01em;
    animation: scale-in 0.55s var(--easing) both;
    animation-delay: calc(var(--i, 0) * 0.08s);
}

.dimension-pill::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--accent);
    opacity: 0.75;
}

.content-body {
    max-width: var(--article);
    padding: 38px 0;
}

.content-body h1,
.content-body h2,
.content-body h3,
.content-body h4 {
    margin: 42px 0 14px;
    line-height: 1.22;
    font-weight: 700;
}

.content-body h1 {
    font-size: 34px;
}

.content-body h2 {
    font-size: 28px;
}

.content-body h3 {
    font-size: 22px;
}

.content-body p,
.content-body ul,
.content-body blockquote,
.content-body pre {
    margin: 0 0 20px;
}

.content-body ul {
    padding-left: 1.3em;
}

.content-body ul li::marker {
    color: var(--signal);
}

.content-body blockquote {
    padding: 14px 0 14px 20px;
    color: var(--text-soft);
    border-left: 3px solid var(--signal);
}

.content-body code {
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 0.92em;
}

.content-body p code,
.content-body li code {
    padding: 0.12em 0.32em;
    border: 1px solid var(--line);
    border-radius: 5px;
    background: var(--surface-soft);
}

.content-body pre {
    overflow-x: auto;
    padding: 18px;
    border-radius: 10px;
    color: #f6f7fb;
    background: #0e1421;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03), 0 6px 18px rgba(5, 12, 30, 0.18);
    overflow-x: auto;
}

.section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.section-heading h2 {
    margin: 0;
    font-size: 24px;
}

.post-list {
    padding: 34px 0 72px;
}

.post-card {
    border-top: 1px solid var(--line);
}

.post-card a {
    display: block;
    padding: 22px 0;
    color: var(--text);
    text-decoration: none;
    transition: transform 0.25s var(--easing), color 0.25s var(--easing);
}

.post-card a:hover {
    transform: translateX(6px);
    color: var(--signal);
}

.post-card time {
    color: var(--text-soft);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 13px;
}

.post-card h3 {
    margin: 8px 0 6px;
    font-size: 24px;
    line-height: 1.24;
}

.post-card p {
    max-width: 760px;
    margin: 0;
    color: var(--text-soft);
}

.article {
    padding-bottom: 64px;
}

.article-header {
    max-width: 900px;
    padding: 76px 0 28px;
    box-shadow: inset 0 -1px 0 color-mix(in oklab, var(--line) 42%, transparent);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.tags span {
    padding: 4px 8px;
    color: var(--text-soft);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-soft);
}

.muted {
    color: var(--text-soft);
}

.site-footer {
    padding: 28px 0 42px;
    color: var(--text-soft);
    font-size: 14px;
    box-shadow: inset 0 1px 0 color-mix(in oklab, var(--line) 42%, transparent);
}

@keyframes scale-in {
    0% {
        opacity: 0;
        transform: translateY(8px) scale(0.98);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 720px) {
    body {
        font-size: 16px;
    }

    .site-header {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        padding-top: 10px;
        padding-bottom: 10px;
        gap: 12px;
    }

    .nav {
        justify-content: flex-start;
    }

    .hero,
    .page-heading {
        padding: 46px 0 32px;
    }

    .hero h1,
    .page-heading h1,
    .article-header h1 {
        font-size: 34px;
    }

    .lead {
        font-size: 18px;
    }
}