:root {
  --ink: #182027;
  --muted: #66717b;
  --line: #dfe4e8;
  --paper: #ffffff;
  --soft: #f3f6f7;
  --accent: #d84b3e;
  --green: #19766b;
  --yellow: #f0d78f;
  --article-width: 760px;
  --site-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.8;
}

a { color: inherit; }
img { display: block; max-width: 100%; }

.site-header {
  position: relative;
  z-index: 10;
  color: var(--ink);
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 36px, var(--site-width));
  height: 72px;
  margin: 0 auto;
}

.site-header--overlay {
  position: absolute;
  inset: 0 0 auto;
  color: #fff;
  background: transparent;
  border-bottom-color: rgba(255, 255, 255, .28);
}

.logo {
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
}

.nav a {
  text-decoration: none;
  opacity: .82;
}

.nav a:hover,
.nav a:focus-visible { opacity: 1; }

.home-intro {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #182027;
}

.home-intro::before,
.home-intro::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.home-intro::before {
  top: -220px;
  right: -80px;
  width: 570px;
  height: 570px;
  background: #19766b;
  opacity: .72;
}

.home-intro::after {
  right: 280px;
  bottom: -240px;
  width: 430px;
  height: 430px;
  background: #d84b3e;
  opacity: .82;
}

.home-intro-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 36px, var(--site-width));
  margin: 0 auto;
  padding: 96px 0 90px;
}

.home-kicker,
.article-kicker {
  margin: 0 0 14px;
  color: #d7f0eb;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.home-intro h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.08;
  letter-spacing: -.02em;
}

.home-description {
  max-width: 630px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, .78);
  font-size: 18px;
}

.post-section {
  width: min(100% - 36px, var(--site-width));
  margin: 0 auto;
  padding: 74px 0 88px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
}

.post-count {
  color: var(--muted);
  font-size: 14px;
}

.post-count strong { color: var(--ink); }

.post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.post-card {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(340px, 1.15fr);
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: transform .2s ease, box-shadow .2s ease;
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(24, 32, 39, .09);
}

.post-card--featured {
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
}

.post-cover-link {
  display: block;
  min-height: 100%;
  background: var(--soft);
  overflow: hidden;
}

.post-cover {
  width: 100%;
  height: 100%;
  min-height: 285px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .35s ease;
}

.post-card:hover .post-cover { transform: scale(1.018); }

.post-card .post-cover { aspect-ratio: auto; }

.post-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px;
}

.post-card--featured .post-content {
  justify-content: center;
  padding: 42px;
}

.post-card:not(.post-card--featured) .post-content {
  justify-content: center;
  padding: 36px;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-bottom: 13px;
  color: var(--muted);
  font-size: 13px;
}

.post-category {
  color: var(--green);
  font-weight: 800;
}

.post-title {
  margin: 0;
  font-size: 27px;
  line-height: 1.3;
}

.post-card--featured .post-title { font-size: clamp(29px, 3.2vw, 40px); }

.post-card:not(.post-card--featured) .post-title { font-size: 30px; }

.post-title a { text-decoration: none; }

.post-excerpt {
  margin: 15px 0 22px;
  color: #4d5a62;
  font-size: 15px;
  line-height: 1.75;
}

.read-more {
  margin-top: auto;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.read-more::after { content: "  →"; }

.about-section {
  background: var(--soft);
}

.about-inner {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 48px;
  width: min(100% - 36px, var(--site-width));
  margin: 0 auto;
  padding: 72px 0;
}

.about-label {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.about-copy h2 {
  margin: 0 0 12px;
  font-size: 30px;
  line-height: 1.3;
}

.about-copy p {
  max-width: 700px;
  margin: 0;
  color: #4d5a62;
}

.article-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(72vh, 700px);
  color: #fff;
  background: #182027 var(--hero-image) center / cover no-repeat;
  overflow: hidden;
}

.article-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 20, 24, .16) 16%, rgba(14, 20, 24, .88) 100%);
}

.article-hero-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 36px, var(--site-width));
  margin: 0 auto;
  padding: 120px 0 54px;
}

.article-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(36px, 6.4vw, 68px);
  line-height: 1.08;
  letter-spacing: -.01em;
}

.article-hero-copy {
  max-width: 650px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  width: min(100% - 36px, var(--article-width));
  margin: 0 auto;
  padding: 36px 0 22px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.article-body {
  width: min(100% - 36px, var(--article-width));
  margin: 0 auto;
  padding: 34px 0 64px;
}

.article-body p { margin: 0 0 20px; }

.notice {
  margin: 0 0 30px;
  padding: 14px 16px;
  color: #40515a;
  background: #edf6f4;
  border-left: 4px solid var(--green);
  font-size: 14px;
  line-height: 1.65;
}

.lead {
  margin-top: 0;
  color: #2e3940;
  font-size: 20px;
  line-height: 1.75;
}

.article-body h2 {
  margin: 44px 0 14px;
  font-size: 25px;
  line-height: 1.35;
}

.article-body blockquote {
  margin: 34px 0;
  padding: 6px 0 6px 22px;
  color: #334047;
  border-left: 3px solid var(--accent);
  font-size: 21px;
  line-height: 1.65;
}

.rumor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 36px;
  padding: 0;
  list-style: none;
}

.rumor-grid li {
  min-height: 120px;
  padding: 18px;
  color: #35434b;
  background: var(--soft);
  border-top: 3px solid var(--green);
  font-size: 15px;
  line-height: 1.65;
}

.rumor-label {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 800;
}

.sources {
  margin-top: 46px;
  padding: 22px 24px;
  color: #526069;
  background: var(--soft);
  font-size: 14px;
  line-height: 1.7;
}

.sources h2 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 18px;
}

.sources ul {
  margin: 0;
  padding-left: 20px;
}

.sources li + li { margin-top: 6px; }

.sources a {
  color: var(--green);
  text-underline-offset: 3px;
}

.article-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.article-nav a {
  padding: 16px;
  background: var(--soft);
  text-decoration: none;
}

.article-nav small {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 12px;
}

.article-nav strong {
  display: block;
  font-size: 14px;
  line-height: 1.45;
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 34px;
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.site-footer {
  padding: 30px 18px calc(30px + env(safe-area-inset-bottom));
  color: #8b949b;
  background: #e9edef;
  text-align: center;
  font-size: 13px;
}

.site-footer p { margin: 0 0 5px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--ink); }

@media (max-width: 780px) {
  body { font-size: 16px; }
  .header-inner { height: 62px; }
  .nav { gap: 14px; }
  .nav .optional { display: none; }

  .home-intro-inner { padding: 72px 0 70px; }
  .home-intro h1 { font-size: clamp(40px, 12vw, 58px); }
  .home-description { font-size: 16px; }
  .home-intro::before { right: -300px; }
  .home-intro::after { right: -150px; bottom: -320px; }

  .post-section { padding: 54px 0 66px; }
  .post-grid { grid-template-columns: 1fr; }
  .post-card,
  .post-card--featured {
    display: block;
  }
  .post-card .post-cover { aspect-ratio: 16 / 9; }
  .post-card--featured .post-content,
  .post-card:not(.post-card--featured) .post-content { padding: 28px; }
  .post-card--featured .post-title,
  .post-title { font-size: 25px; }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 54px 0;
  }

  .article-hero { min-height: 620px; }
  .article-hero-inner { padding-bottom: 38px; }
  .article-hero-copy { font-size: 15px; }
  .lead { font-size: 18px; }
  .article-body h2 { font-size: 22px; }
  .article-body blockquote { font-size: 18px; }
  .rumor-grid { grid-template-columns: 1fr; }
  .rumor-grid li { min-height: 0; }
  .article-nav { grid-template-columns: 1fr; }
}