:root {
  --ink: #161c19;
  --paper: #e7ebe4;
  --paper-2: #d4dbd2;
  --bar: #1c2420;
  --bar-2: #121816;
  --accent: #c45c26;
  --accent-ink: #fff6ef;
  --line: #b7c0b2;
  --muted: #4a554f;
  --ok: #2c5a43;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "Consolas", "Menlo", "Roboto Mono", ui-monospace, monospace;
  --radius: 0;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.65;
  min-height: 100%;
}

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

a {
  color: var(--ok);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
}

.wrap {
  width: min(1120px, calc(100% - 1.6rem));
  margin-inline: auto;
}

.site-header {
  background: var(--bar);
  color: #e8efe6;
  position: sticky;
  top: 0;
  z-index: 20;
}

.mast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  max-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: #f3f7f1;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  background: #0f1412;
}

.nav-toggle {
  display: none;
  min-height: 44px;
  min-width: 44px;
  padding: 0 0.9rem;
  border: 1px solid #5d6a62;
  background: transparent;
  color: #f3f7f1;
  font: inherit;
  cursor: pointer;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.site-nav a {
  color: #d5ddd1;
  text-decoration: none;
  padding: 0.55rem 0.7rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.is-active,
.site-nav a[aria-current="page"] {
  color: #fff;
  box-shadow: inset 0 -2px 0 var(--accent);
}

.seg-bar {
  background: var(--bar-2);
  border-top: 1px solid #2a342f;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: #aeb8b0;
}

.seg-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  flex-wrap: wrap;
}

.site-footer {
  background: var(--bar);
  color: #c9d2cb;
  margin-top: 3rem;
  padding: 2.2rem 0 1.4rem;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 1.6rem;
}

.foot-brand {
  margin: 0 0 0.5rem;
  color: #f3f7f1;
  font-weight: 700;
}

.foot-grid a {
  display: block;
  color: #d5ddd1;
  text-decoration: none;
  padding: 0.25rem 0;
  min-height: 44px;
}

.foot-grid a:hover {
  color: #fff;
}

.foot-copy {
  border-top: 1px solid #2a342f;
  margin-top: 1.4rem;
  padding-top: 0.9rem;
  font-size: 0.85rem;
  color: #8f9a92;
}

.kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0 0 0.4rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin: 0 0 0.7rem;
}

h2 {
  font-size: 1.25rem;
  margin: 1.6rem 0 0.6rem;
}

h3 {
  font-size: 1.05rem;
}

.lede {
  font-size: 1.02rem;
  max-width: 62ch;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.1rem;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  border: 0;
  font-weight: 700;
  white-space: nowrap;
}

.btn:hover {
  color: #fff;
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
}

.home-main {
  padding-top: 1.2rem;
}

.section {
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
}

.lead-split {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 1.4rem;
  align-items: stretch;
}

.lead-visual img,
.rail-card img,
.band img,
.desk-visual img {
  width: 100%;
  object-fit: cover;
}

.lead-visual img {
  min-height: 280px;
  max-height: 380px;
  object-fit: cover;
}

.lead-copy {
  background: var(--paper-2);
  padding: 1.1rem 1.2rem;
}

.rail {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.rail-card {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 0.75rem;
  background: #eef2ea;
  border-left: 3px solid var(--accent);
  padding: 0.5rem 0.7rem 0.5rem 0.5rem;
}

.rail-card img {
  height: 88px;
  object-fit: cover;
}

.rail-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.rail-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.cat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--ink);
}

.cat-strip a {
  padding: 1rem 1.1rem;
  text-decoration: none;
  color: var(--ink);
  border-right: 1px solid var(--ink);
  min-height: 88px;
}

.cat-strip a:last-child {
  border-right: 0;
}

.cat-strip a strong {
  display: block;
  font-size: 1.1rem;
}

.cat-strip a span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.cat-strip a:hover {
  background: var(--ink);
  color: var(--paper);
}

.cat-strip a:hover span {
  color: #c5cdc0;
}

.ledger {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--bar);
  color: #e8efe6;
}

.ledger div {
  padding: 1rem 1.1rem;
  border-right: 1px solid #2f3a34;
}

.ledger div:last-child {
  border-right: 0;
}

.ledger b {
  display: block;
  font-family: var(--mono);
  font-size: 1.35rem;
  color: #fff;
}

.ledger span {
  color: #aeb8b0;
  font-size: 0.86rem;
}

.feed-row {
  display: grid;
  grid-template-columns: 160px 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}

.feed-row img {
  width: 160px;
  height: 100px;
  object-fit: cover;
}

.feed-row h3 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
}

.feed-row p {
  margin: 0;
  color: var(--muted);
}

.feed-meta {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.band {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.2rem;
  align-items: center;
}

.band img {
  min-height: 240px;
  object-fit: cover;
}

.desk-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1.2rem;
}

.desk-list a {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
}

.desk-list a:hover h3 {
  color: var(--accent);
}

.desk-list h3 {
  margin: 0 0 0.2rem;
}

.desk-list p {
  margin: 0;
  color: var(--muted);
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.faq-item {
  background: #eef2ea;
  padding: 1rem;
}

.faq-item h3 {
  margin-top: 0;
}

.timeline {
  display: grid;
  gap: 0;
}

.timeline article {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.timeline time {
  font-family: var(--mono);
  color: var(--muted);
}

.close-note {
  background: var(--paper-2);
  padding: 1.4rem 1.2rem;
}

.page-main {
  padding: 1.4rem 0 2rem;
}

.page-intro {
  max-width: 70ch;
  margin-bottom: 1.4rem;
}

.cat-list {
  display: grid;
  gap: 0;
}

.cat-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.cat-item img {
  width: 200px;
  height: 130px;
  object-fit: cover;
}

.article-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1.6rem;
  align-items: start;
}

.article-aside {
  background: #eef2ea;
  padding: 1rem 0.9rem;
  border-top: 3px solid var(--accent);
  position: sticky;
  top: 88px;
}

.article-aside h2 {
  margin-top: 0;
  font-size: 1rem;
}

.article-aside a {
  display: block;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.article-aside a:hover {
  color: var(--accent);
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.8rem;
}

.breadcrumb a {
  color: var(--muted);
}

.article-meta {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.article-body p {
  margin: 0 0 1rem;
  max-width: 68ch;
}

.article-body ul,
.article-body ol {
  max-width: 68ch;
  padding-left: 1.2rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
  margin: 1rem 0 1.2rem;
}

.split img {
  width: 100%;
  object-fit: cover;
  min-height: 220px;
}

.inline-figure {
  margin: 1rem 0 1.2rem;
}

.inline-figure img,
.article-hero img,
.figure-card img {
  width: 100%;
  object-fit: cover;
}

.figure-right {
  float: right;
  width: min(42%, 280px);
  margin: 0 0 1rem 1rem;
}

.article-hero {
  margin: 0 0 1.1rem;
}

.article-hero img {
  max-height: 360px;
  object-fit: cover;
  width: 100%;
}

.figure-card {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 0.8rem;
  background: #eef2ea;
  padding: 0.8rem;
  margin: 1rem 0;
}

.figure-card img {
  height: 120px;
  object-fit: cover;
}

.pull {
  border-left: 3px solid var(--accent);
  padding: 0.2rem 0 0.2rem 0.9rem;
  color: var(--muted);
  max-width: 60ch;
}

.back-cat {
  margin-top: 1.6rem;
}

@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  .wrap {
    width: calc(100% - 1.5rem);
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    background: var(--bar-2);
    flex-direction: column;
    align-items: stretch;
    padding: 0.4rem 0.8rem 0.8rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    border-bottom: 1px solid #2a342f;
  }

  .lead-split,
  .band,
  .desk-split,
  .faq-grid,
  .article-layout,
  .split,
  .cat-item,
  .feed-row,
  .timeline article,
  .foot-grid,
  .ledger,
  .cat-strip,
  .figure-card,
  .rail-card {
    grid-template-columns: 1fr;
  }

  .figure-right {
    float: none;
    width: 100%;
    margin: 0 0 1rem;
  }

  .feed-row img,
  .cat-item img,
  .rail-card img {
    width: 100%;
    height: 180px;
  }

  .feed-meta {
    white-space: normal;
  }

  .article-aside {
    position: static;
  }

  .mast {
    max-height: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
    animation: none !important;
  }
}