@charset "UTF-8";

:root {
    color-scheme: light;
    --page: #f5f6f7;
    --text: #25292e;
    --muted: #626973;
    --line: #e0e3e7;
    --link: #315f8b;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body {
    margin: 0;
    background: var(--page);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    font-size: 14px;
    line-height: 1.85;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--link); outline-offset: 4px; }
::selection { background: #d7e7f5; }
img { display: block; max-width: 100%; height: auto; }
figure, h1, h2, h3, p, dl, dd { margin: 0; }
h2 { font-size: 19px; font-weight: 600; line-height: 1.5; }
h3 { font-size: 14px; font-weight: 600; }
.skip-link { position: fixed; z-index: 2; top: 8px; left: 8px; padding: 8px 16px; background: white; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.site-header, main, .site-footer { width: min(1080px, calc(100% - 48px)); margin-inline: auto; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 78px; }
.brand { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; color: var(--text); }
.brand:hover { text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 28px; font-size: 13px; }
nav a { color: #4f5863; }
main { background: white; border: 1px solid var(--line); padding: 34px 36px; }
.title-row { display: flex; align-items: center; flex-wrap: wrap; gap: 15px; }
h1 { font-size: 36px; font-weight: 650; letter-spacing: -1px; line-height: 1.4; }
.project-state { border: 1px solid #d7dce1; border-radius: 3px; background: #f7f8f9; color: #616971; padding: 0 7px; font-size: 11px; line-height: 1.9; }
.project-description { font-size: 17px; margin-top: 5px; }
.introduction-text { max-width: 860px; color: var(--muted); margin-top: 13px; line-height: 1.9; }
.overview { display: grid; grid-template-columns: minmax(0, 640px) minmax(220px, 1fr); gap: 30px; align-items: start; margin-top: 27px; }
.main-screenshot img { width: 100%; }
.main-screenshot > a, .screenshot-grid figure > a { display: block; }
figcaption { color: var(--muted); font-size: 12px; padding-top: 9px; }
.main-screenshot figcaption { display: flex; justify-content: space-between; gap: 20px; }
.project-info { padding-top: 1px; }
.project-info h2 { font-size: 16px; margin-bottom: 11px; }
.project-info dl { border-top: 1px solid var(--line); }
.project-info dl > div { display: grid; grid-template-columns: 76px 1fr; gap: 8px; padding-block: 9px; border-bottom: 1px solid var(--line); font-size: 12px; }
.project-info dt { color: var(--muted); }
.project-info h3 { margin-top: 22px; }
.project-info ul { padding-left: 17px; margin-block: 10px 12px; font-size: 12px; line-height: 1.9; }
.project-info li + li { margin-top: 7px; }
.info-note { font-size: 12px; color: var(--muted); }
.section { margin-top: 36px; padding-top: 25px; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 19px; }
.section-heading p { color: var(--muted); font-size: 12px; }
.screenshot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.screenshot-grid img { width: 100%; }
.section-note { font-size: 12px; color: var(--muted); margin-top: 14px; }
.progress-list > div { display: grid; grid-template-columns: 116px 1fr; gap: 20px; padding-block: 14px; border-bottom: 1px solid var(--line); }
.progress-list > div:first-child { border-top: 1px solid var(--line); }
.progress-list dt { font-weight: 600; font-size: 13px; }
.progress-list dd { color: #565e68; font-size: 13px; }
.project-notes { margin-top: 27px; }
.project-notes h2 { font-size: 14px; margin-bottom: 7px; }
.project-notes p { font-size: 12px; color: var(--muted); }
.site-footer { display: flex; justify-content: space-between; gap: 20px; color: #777e87; font-size: 12px; padding-block: 22px 30px; }

@media (max-width: 900px) {
    main { padding: 28px; }
    .overview { grid-template-columns: minmax(0, 1fr) 220px; gap: 23px; }
    .project-info dl > div { grid-template-columns: 68px 1fr; }
}

@media (max-width: 680px) {
    .site-header, main, .site-footer { width: calc(100% - 28px); }
    .site-header { min-height: 67px; gap: 12px; }
    .brand { font-size: 18px; }
    nav { gap: 15px; font-size: 12px; }
    main { padding: 22px 18px; }
    h1 { font-size: 30px; }
    .project-description { font-size: 15px; }
    .introduction-text { font-size: 13px; }
    .overview { grid-template-columns: 1fr; gap: 25px; margin-top: 23px; }
    .project-info dl > div { grid-template-columns: 92px 1fr; }
    .section { margin-top: 27px; padding-top: 22px; }
    .screenshot-grid { grid-template-columns: 1fr; gap: 19px; }
    .progress-list > div { grid-template-columns: 1fr; gap: 4px; }
    .site-footer { padding-block: 17px 24px; }
}

@media (max-width: 370px) {
    nav { gap: 10px; font-size: 11px; }
    .site-header { gap: 8px; }
    .brand { font-size: 16px; }
    main { padding-inline: 14px; }
}