:root {
    --ink: #15161a;
    --muted: #626b76;
    --paper: #f7f9f2;
    --panel: #ffffff;
    --line: #dfe6dc;
    --code: #202124;
    --cyan: #00a6a6;
    --orange: #ff6b35;
    --lime: #b8e986;
    --blue: #2f80ed;
    --shadow: 0 18px 48px rgba(21, 22, 26, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background:
        linear-gradient(90deg, rgba(21, 22, 26, .045) 1px, transparent 1px) 0 0 / 44px 44px,
        linear-gradient(180deg, rgba(0, 166, 166, .07), transparent 320px),
        var(--paper);
    font-family: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.pg-wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.pg-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(21, 22, 26, .12);
    background: rgba(247, 249, 242, .94);
    backdrop-filter: blur(16px);
}
.pg-top, .pg-nav {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    align-items: center;
}
.pg-top { min-height: 74px; justify-content: space-between; gap: 24px; }
.pg-logo { display: flex; align-items: baseline; gap: 12px; font-weight: 900; letter-spacing: 0; }
.pg-logo span { font-size: clamp(20px, 3vw, 30px); }
.pg-logo b { color: var(--orange); font-size: 12px; border-left: 2px solid var(--ink); padding-left: 10px; }
.pg-quick, .pg-nav { gap: 10px; flex-wrap: wrap; }
.pg-quick a, .pg-nav a, .pg-hotkeys a, .pg-tags a, .pg-subnav a, .pg-link-cloud a {
    border: 1px solid rgba(21, 22, 26, .16);
    background: rgba(255, 255, 255, .72);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
}
.pg-quick a:hover, .pg-nav a:hover, .pg-tags a:hover, .pg-subnav a:hover, .pg-link-cloud a:hover { border-color: var(--cyan); color: #007878; }
.pg-nav { padding: 0 0 16px; overflow-x: auto; }
.pg-top-ad-wrap {
    width: min(1180px, calc(100% - 32px));
    margin: 18px auto 0;
}
.pg-top-ad {
    margin: 0;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
}
.pg-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
    gap: 34px;
    align-items: start;
    padding: 28px 0 22px;
}
.pg-hero-copy {
    min-height: 0;
    padding: clamp(26px, 4vw, 46px);
    background: var(--ink);
    color: #fff;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}
.pg-hero-copy:after {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 260px;
    height: 260px;
    border: 42px solid rgba(0, 166, 166, .45);
    transform: rotate(16deg);
}
.pg-kicker {
    display: inline-flex;
    color: var(--orange);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .14em;
}
.pg-hero h1, .pg-channel-hero h1, .pg-search-hero h1, .pg-guest-main h1, .pg-article-hero h1 {
    margin: 14px 0 18px;
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.08;
    letter-spacing: 0;
}
.pg-hero h1 { font-size: clamp(38px, 5.7vw, 62px); max-width: 760px; }
.pg-hero p { max-width: 720px; color: rgba(255, 255, 255, .78); font-size: 18px; }
.pg-search-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    margin-top: 28px;
}
.pg-search-form input, .pg-guest-form input, .pg-guest-form textarea {
    width: 100%;
    border: 1px solid rgba(21, 22, 26, .16);
    background: #fff;
    color: var(--ink);
    min-height: 46px;
    padding: 12px 14px;
    border-radius: 6px;
    font: inherit;
}
.pg-hero .pg-search-form input { border-color: transparent; }
.pg-search-form button, .pg-guest-form button {
    border: 0;
    background: var(--orange);
    color: #fff;
    font-weight: 900;
    padding: 0 20px;
    min-height: 46px;
    border-radius: 6px;
    cursor: pointer;
}
.pg-search-captcha, .search-captcha { display: contents; }
.search-captcha span { align-self: center; color: var(--muted); font-size: 13px; }
.pg-hotkeys { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; position: relative; z-index: 1; }
.pg-hero .pg-hotkeys a { color: #fff; background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .2); }
.pg-console {
    border: 1px solid rgba(21, 22, 26, .12);
    background: var(--panel);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}
.pg-console-bar { height: 44px; display: flex; align-items: center; gap: 8px; padding: 0 16px; background: #ecefe8; border-bottom: 1px solid var(--line); }
.pg-console-bar i { width: 11px; height: 11px; border-radius: 50%; background: var(--orange); }
.pg-console-bar i:nth-child(2) { background: var(--lime); }
.pg-console-bar i:nth-child(3) { background: var(--cyan); }
.pg-console-bar span { margin-left: 8px; color: var(--muted); font-size: 13px; }
.pg-console pre {
    margin: 0;
    padding: 28px;
    background: var(--code);
    color: #d5fff8;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 15px;
    line-height: 1.75;
}
.pg-lead-card { display: grid; gap: 16px; padding: 18px; }
.pg-lead-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 6px; }
.pg-lead-card strong { font-size: 22px; line-height: 1.35; }
.pg-lead-card span, .pg-panel p, .pg-article-card p, .pg-feed-item p { color: var(--muted); }
.pg-console-notes {
    display: grid;
    gap: 10px;
    padding: 16px 18px 18px;
    background: #fff;
}
.pg-console-notes a {
    display: grid;
    gap: 2px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
}
.pg-console-notes b { color: var(--ink); }
.pg-console-notes span { color: var(--muted); font-size: 13px; }
.pg-grid { display: grid; gap: 18px; margin: 18px 0; }
.pg-grid-3 { grid-template-columns: 1.35fr .85fr .8fr; }
.pg-grid-2 { grid-template-columns: minmax(0, 1.35fr) minmax(320px, .8fr); }
.pg-panel, .pg-channel-hero, .pg-search-hero {
    background: rgba(255, 255, 255, .86);
    border: 1px solid rgba(21, 22, 26, .12);
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 12px 32px rgba(21, 22, 26, .06);
}
.pg-section { margin: 34px 0; }
.pg-section-head { margin-bottom: 18px; }
.pg-section-head span { color: var(--cyan); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.pg-section-head h2 { margin: 4px 0 0; font-size: clamp(22px, 3vw, 34px); line-height: 1.2; }
.pg-section-row { display: flex; align-items: end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.pg-section-row a { color: var(--blue); font-weight: 800; }
.pg-headline { display: block; font-size: clamp(26px, 4vw, 44px); line-height: 1.15; font-weight: 900; margin-bottom: 12px; }
.pg-list-dense, .pg-rank { display: grid; gap: 8px; }
.pg-list-dense a, .pg-rank a, .pg-lane-link {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 10px 0;
    border-top: 1px solid var(--line);
}
.pg-list-dense em, .pg-lane-link em, .pg-tags em { color: var(--muted); font-style: normal; font-size: 12px; }
.pg-rank a { grid-template-columns: 34px 1fr; }
.pg-rank b {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    background: var(--ink);
    color: #fff;
    border-radius: 6px;
    font-size: 13px;
}
.pg-tags, .pg-subnav, .pg-link-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.pg-tags a { display: inline-flex; gap: 8px; align-items: center; }
.pg-card-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.pg-card-grid-small { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pg-article-card {
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(21, 22, 26, .12);
    border-radius: 8px;
}
.pg-article-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.pg-article-card div { padding: 16px; }
.pg-article-card a { font-weight: 900; line-height: 1.35; }
.pg-article-card span, .pg-feed-item span { color: var(--muted); font-size: 13px; }
.pg-lanes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 34px 0; }
.pg-feed-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; margin: 34px 0; }
.pg-feed-layout-compact { grid-template-columns: minmax(0, 1fr) 260px; }
.pg-feed-full { grid-template-columns: 1fr; }
.pg-feed { display: grid; gap: 16px; }
.pg-feed-item {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 18px;
    padding: 16px;
    background: rgba(255, 255, 255, .86);
    border: 1px solid rgba(21, 22, 26, .12);
    border-radius: 8px;
}
.pg-feed-item img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 6px; }
.pg-feed-item a { font-size: 22px; line-height: 1.35; font-weight: 900; }
.pg-feed-item p { margin: 8px 0; }
.pg-sticky { position: sticky; top: 110px; display: grid; gap: 18px; }
.pg-feed-layout-compact .pg-sticky .pg-panel { padding: 20px; }
.pg-feed-layout-compact .pg-sticky .pg-section-head h2 { font-size: 28px; }
.pg-side-cards { display: grid; gap: 12px; }
.pg-side-cards a { display: grid; grid-template-columns: 96px 1fr; gap: 12px; align-items: center; font-weight: 800; }
.pg-side-cards img { width: 96px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 6px; }
.pg-home-links {
    margin: 34px 0 0;
    padding: 24px;
    border: 1px solid rgba(21, 22, 26, .12);
    background: rgba(255, 255, 255, .86);
    border-radius: 8px;
}
.pg-token-ad {
    display: grid;
    gap: 6px;
    margin: 0 0 22px;
    padding: 18px 20px;
    border: 1px solid rgba(255, 255, 255, .20);
    border-radius: 8px;
    background: linear-gradient(135deg, #00a6a6, #2f80ed 55%, #ff6b35);
    color: #fff;
}
.pg-token-ad strong { font-size: clamp(20px, 3vw, 30px); line-height: 1.2; }
.pg-token-ad span { color: rgba(255, 255, 255, .88); }
.pg-token-ad-side { margin: 0; box-shadow: var(--shadow); }
.pg-channel-hero, .pg-search-hero { margin: 36px 0 24px; padding: clamp(28px, 5vw, 54px); }
.pg-channel-hero h1, .pg-search-hero h1, .pg-guest-main h1 { font-size: clamp(36px, 6vw, 62px); }
.pg-channel-hero p, .pg-search-hero p, .pg-guest-main > p { max-width: 760px; color: var(--muted); font-size: 18px; }
.pg-subnav { margin-top: 22px; }
.pg-message:not(:empty), .pg-alert:not(:empty) { margin-top: 14px; padding: 12px 14px; border-radius: 6px; }
.pg-message:not(:empty), .pg-alert-bad:not(:empty) { background: #fff1ed; color: #ad3214; border: 1px solid #ffc9b8; }
.pg-alert-ok:not(:empty) { background: #edf8f3; color: #0f6f5d; border: 1px solid #bfe6da; }
.pg-search-wide { max-width: 840px; }
.pg-search-inline {
    max-width: none;
    grid-template-columns: minmax(280px, 1fr) auto minmax(160px, 220px) auto;
    align-items: center;
}
.pg-search-inline .search-captcha span {
    white-space: nowrap;
    justify-self: end;
}
.pg-search-inline input[name="captcha"] { min-width: 0; }
.pg-guest-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; margin: 36px 0; align-items: start; }
.pg-guest-main { padding: clamp(26px, 5vw, 54px); }
.pg-guest-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 26px; }
.pg-guest-form label { display: grid; gap: 7px; color: var(--muted); font-weight: 800; }
.pg-guest-form .wide { grid-column: 1 / -1; }
.pg-guest-form textarea { resize: vertical; min-height: 180px; }
.pg-captcha { grid-template-columns: auto 82px 1fr; align-items: end; grid-column: 1 / -1; }
.pg-captcha strong { display: grid; place-items: center; min-height: 46px; background: var(--ink); color: #fff; border-radius: 6px; }
.pg-check { padding-left: 20px; color: var(--muted); }
.pg-article-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 34px auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 24px;
    align-items: start;
}
.pg-article-main {
    background: rgba(255, 255, 255, .9);
    border: 1px solid rgba(21, 22, 26, .12);
    border-radius: 8px;
    overflow: hidden;
}
.pg-breadcrumb { display: flex; gap: 8px; flex-wrap: wrap; padding: 22px clamp(20px, 5vw, 58px) 0; color: var(--muted); font-size: 14px; }
.pg-breadcrumb a { color: #007878; }
.pg-article-hero { padding: 28px clamp(20px, 5vw, 58px) 20px; }
.pg-article-hero h1 { font-size: clamp(34px, 6vw, 64px); }
.pg-article-hero p { color: var(--muted); font-size: 18px; }
.pg-article-meta { display: flex; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.pg-article-meta span, .pg-article-meta time { padding: 6px 10px; background: #f1f4ee; border-radius: 6px; }
.pg-cover { margin: 24px 0 0; }
.pg-cover img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); }
.pg-cover figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; }
.pg-article-content { padding: 16px clamp(20px, 5vw, 58px) 40px;  }
.pg-article-content h2, .pg-article-content h3 { line-height: 1.28; margin-top: 34px; }
.pg-article-content p { margin: 1em 0; }
.pg-article-content img { border-radius: 8px; margin: 24px auto; height: auto; }
/* 文章代码展示样式：后期如果接入 highlight.js / Prism，可优先在这里扩展 pre/code 的主题。 */
.pg-article-content pre, .pg-article-content code {
    background: var(--code);
    color: #d5fff8;
    border-radius: 6px;
}
.pg-article-content pre { overflow: auto; padding: 18px; }
.pg-article-content code { padding: 2px 6px; }
.pg-article-tags, .pg-related { padding: 0 clamp(20px, 5vw, 58px) 34px; }
.pg-article-tags { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.pg-article-tags a { padding: 7px 11px; border-radius: 6px; background: #eef7f6; color: #007878; font-weight: 800; }
.pg-article-aside {
    min-width: 0;
    position: sticky;
    top: 110px;
    align-self: start;
    max-height: calc(100vh - 126px);
    overflow-y: auto;
}
.pg-article-aside .pg-sticky {
    position: static;
}
.pg-search-compact { grid-template-columns: 1fr; }
.pg-search-compact button { width: 100%; }
.pagination, .page-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0; }
.pagination a, .pagination span, .page-list a, .page-list span { padding: 8px 12px; border-radius: 6px; background: #fff; border: 1px solid var(--line); }
.ad-slot { margin: 24px clamp(20px, 5vw, 58px); }
.ad-item img { border-radius: 8px; width: 100%; height: auto; }
.pg-footer {
    margin-top: 52px;
    padding: 34px max(16px, calc((100% - 1180px) / 2));
    background: var(--ink);
    color: rgba(255, 255, 255, .76);
}
.pg-footer div { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.pg-footer a { color: #fff; }
@media (max-width: 980px) {
    .pg-hero, .pg-grid-3, .pg-grid-2, .pg-feed-layout, .pg-guest-layout, .pg-article-shell { grid-template-columns: 1fr; }
    .pg-hero-copy { min-height: 0; }
    .pg-card-grid, .pg-lanes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .pg-sticky { position: static; }
    .pg-article-aside {
        position: static;
        max-height: none;
        overflow: visible;
    }
}
@media (max-width: 640px) {
    .pg-wrap, .pg-top, .pg-nav, .pg-article-shell { width: min(100% - 22px, 1180px); }
    .pg-top { align-items: flex-start; flex-direction: column; padding: 14px 0; gap: 12px; }
    .pg-nav { padding-bottom: 12px; flex-wrap: nowrap; }
    .pg-hero { padding-top: 22px; }
    .pg-hero-copy, .pg-panel, .pg-channel-hero, .pg-search-hero, .pg-guest-main { padding: 20px; }
    .pg-search-form, .pg-search-inline, .pg-feed-item, .pg-guest-form, .pg-captcha { grid-template-columns: 1fr; }
    .pg-search-inline .search-captcha span { justify-self: start; }
    .pg-card-grid, .pg-card-grid-small, .pg-lanes { grid-template-columns: 1fr; }
    .pg-feed-item img { aspect-ratio: 16 / 9; }
    .pg-article-content { font-size: 16px; }
    .pg-cover img { aspect-ratio: 16 / 10; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}