@font-face {
  font-family: "M PLUS 1p";
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url("../fonts/m-plus-1p-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "M PLUS 1p";
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url("../fonts/m-plus-1p-japanese-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "M PLUS 1p";
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url("../fonts/m-plus-1p-latin-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "M PLUS 1p";
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url("../fonts/m-plus-1p-japanese-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "M PLUS 1p";
  font-style: normal;
  font-display: swap;
  font-weight: 700;
  src: url("../fonts/m-plus-1p-latin-700-normal.woff2") format("woff2");
}

@font-face {
  font-family: "M PLUS 1p";
  font-style: normal;
  font-display: swap;
  font-weight: 700;
  src: url("../fonts/m-plus-1p-japanese-700-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Source Code Pro";
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url("../fonts/source-code-pro-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Source Code Pro";
  font-style: normal;
  font-display: swap;
  font-weight: 700;
  src: url("../fonts/source-code-pro-latin-700-normal.woff2") format("woff2");
}

:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #0b1220;
  --muted: #475569;
  --line: #cbd5e1;
  --sidebar-line: #334155;
  --accent: #6600cc;
  --accent-soft: #efe6ff;
  --font-sans: "M PLUS 1p", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif;
  --font-mono: "Source Code Pro", "M PLUS 1p", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  text-size-adjust: 100%;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.sidebar-frame {
  border-bottom: 1px solid var(--sidebar-line);
}

.sidebar-divider-b {
  border-bottom: 1px solid var(--sidebar-line);
}

.sidebar-divider-t {
  border-top: 1px solid var(--sidebar-line);
}

.sidebar-links {
  border-top: 0;
}

.nav-link {
  border-style: solid;
  border-color: transparent;
  border-top-width: 1px;
}

.nav-link:hover {
  background: #f8fafc;
}

.nav-link.is-active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  border-top-color: var(--sidebar-line);
}

.nav-link.is-active:hover {
  background: var(--accent);
}

.hero {
  border-bottom: 2px solid #0f172a;
  height: clamp(340px, 38vw, 1000px);
  position: relative;
  overflow: hidden;
  background: #0f172a;
  --swiper-navigation-color: #ffffff;
  --swiper-pagination-color: #ffffff;
  --swiper-navigation-sides-offset: 0.75rem;
}

.hero .swiper-button-prev,
.hero .swiper-button-next {
  top: 50%;
  transform: translateY(-50%);
  color: #ffffff;
  margin-top: 0;
  text-shadow: 0 0 8px rgba(15, 23, 42, 0.7);
}

.hero .swiper-button-prev {
  left: 0.75rem;
}

.hero .swiper-button-next {
  right: 0.75rem;
}

.hero .swiper-pagination {
  bottom: 0.5rem;
}

.hero .swiper-pagination-bullet {
  background: #ffffff;
  opacity: 0.65;
}

.hero .swiper-pagination-bullet-active {
  opacity: 1;
}

.hero .swiper-wrapper,
.hero .swiper-slide {
  height: 100%;
}

.hero .swiper-slide > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 50%;
}

.hero .swiper-slide > img.hero-image-contain {
  object-fit: contain;
}

.line-section h2 {
  margin: 0 0 0.8rem;
  font-size: 1.45rem;
}

.line-section {
  border-top: 2px solid #0f172a;
  padding-top: 1rem;
  margin-top: 2.2rem;
}

.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  border-bottom: 1px solid var(--line);
}

.news-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 0.9rem;
  align-items: start;
  padding: 0.75rem 0.3rem;
}

.news-row:hover {
  background: #eef2ff;
}

.news-row time {
  color: #64748b;
  font-size: 0.85rem;
  padding-top: 0.1rem;
}

.news-title {
  font-size: 0.95rem;
}

.news-tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 0.72rem;
  line-height: 1;
  border: 1px solid #cbd5e1;
  color: #334155;
  padding: 0.23rem 0.48rem;
  background: #ffffff;
}

.tag-new {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.tag-filter-link {
  border: 1px solid var(--line);
  padding: 0.24rem 0.6rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: #ffffff;
}

.tag-filter-link.is-active {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0;
  color: #475569;
}

.member-list {
  margin: 0;
  padding-left: 1.2rem;
}

.member-list li {
  margin: 0.45rem 0;
}

.member-name {
  font-weight: 700;
  margin-right: 0.45rem;
}

.member-role {
  color: #475569;
  margin-left: 0.3rem;
  font-size: 0.85rem;
}

.markdown p {
  margin: 0.6rem 0;
}

.markdown h2,
.markdown h3,
.markdown h4 {
  margin-top: 1.4rem;
  margin-bottom: 0.45rem;
}

.markdown ul,
.markdown ol {
  margin: 0.6rem 0;
  padding-left: 1.25rem;
}

.markdown a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.markdown a:hover {
  text-decoration-thickness: 2px;
}

.markdown img {
  display: block;
  max-width: 100%;
  height: auto;
}

.markdown code {
  font-family: var(--font-mono);
  background: #e2e8f0;
  padding: 0.08rem 0.28rem;
  border-radius: 0.25rem;
}

.markdown pre {
  margin: 0.8rem 0;
  padding: 0.85rem 1rem;
  border-radius: 0.45rem;
  background: #111827;
  color: #f8fafc;
  overflow-x: auto;
  font-family: var(--font-mono);
}

.markdown pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  border-radius: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 961px) {
  .sidebar-frame {
    border-bottom: 0;
    border-right: 1px solid var(--sidebar-line);
  }

  .sidebar-links {
    border-top: 1px solid var(--sidebar-line);
  }

  .nav-link {
    border-top-width: 0;
    border-left-width: 1px;
  }

  .nav-link.is-active {
    border-top-color: transparent;
    border-left-color: var(--sidebar-line);
  }
}

@media (max-width: 960px) {
  .hero {
    height: clamp(180px, 42vw, 260px);
    min-height: 0;
  }

  .main-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .main-nav .nav-link {
    flex: 0 0 auto;
    min-width: 6.5rem;
    white-space: nowrap;
    word-break: keep-all;
  }

  .main-nav .nav-link.nav-link-external {
    min-width: 8.5rem;
  }

  .sidebar-links,
  .sidebar-footer {
    display: none;
  }

  .news-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .news-tags {
    justify-content: flex-start;
  }
}