@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Syncopate:wght@400;700&display=swap');

/* ── 设计令牌 ── */
:root {
  --c-teal:    #5cc6b0;
  --c-sand:    #d4c4a8;
  --c-forest:  #172623;
  --c-forest2: #1f3530;
  --c-forest3: #243f38;
  --c-bark:    #3d5c52;
  --c-terracotta: #c67b5c;
  --c-terracotta2: #b56040;
  --c-text:    #e8dfc8;
  --c-text-dim: #a89e88;
  --c-rule:    #5cc6b0;
  --c-card-bg: #1e3530;
  --c-card-border: #2e5048;
  --c-input-bg: #243f38;

  --ff-head: 'Syncopate', 'Space Mono', monospace;
  --ff-mono: 'Space Mono', monospace;
  --ff-body: 'Space Mono', ui-monospace, 'Courier New', monospace;

  --radius-card: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.32), 0 1px 4px rgba(0,0,0,0.18);
  --shadow-hero: 0 8px 40px rgba(0,0,0,0.5);

  --max-w: 1120px;
  --gap: 1.5rem;
  --section-gap: 3.5rem;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--c-forest);
  color: var(--c-text);
  font-family: var(--ff-body);
  font-size: 1rem;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--c-teal); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-sand); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: var(--ff-body); }

/* ── 粒纹叠层 ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.6;
}

/* ══════════════════════════════════════════
   HEADER / NAV
   结构: aside.site-header > .brand-row + nav > ul.nav-left + ul.nav-right
══════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(23, 38, 35, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-bark);
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  padding: .9rem 1.5rem .6rem;
  border-bottom: 1px solid var(--c-forest3);
}
.brand-name {
  font-family: var(--ff-head);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-teal);
  text-decoration: none;
  line-height: 1.2;
}
.brand-name:hover { color: var(--c-sand); }
.brand-mark { width: 28px; height: 28px; object-fit: contain; }

.site-header nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: .3rem 1rem;
}
.site-header nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .1rem .4rem;
}
.nav-left { justify-content: flex-end; }
.nav-right { justify-content: flex-start; }
.site-header nav ul li a {
  display: inline-block;
  padding: .55rem .65rem;
  font-family: var(--ff-head);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  border-radius: var(--radius-sm);
  transition: color .2s ease, background .2s ease;
  min-height: 40px;
  line-height: 1;
  display: flex;
  align-items: center;
}
.site-header nav ul li a:hover {
  color: var(--c-teal);
  background: rgba(92, 198, 176, .08);
}

/* ══════════════════════════════════════════
   HERO （首页）
══════════════════════════════════════════ */
.hero-wrap {
  position: relative;
  width: 100%;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--c-forest2);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(23,38,35,0.45) 0%, rgba(23,38,35,0.88) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  padding: 4rem 2rem 3.5rem;
  text-align: left;
}
.hero-badge {
  display: inline-block;
  padding: .28rem .8rem;
  background: var(--c-terracotta);
  color: #fff;
  font-family: var(--ff-head);
  font-size: .65rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  margin-bottom: 1.1rem;
}
.hero-h1 {
  font-family: var(--ff-head);
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1.25;
  color: var(--c-sand);
  margin-bottom: .85rem;
  text-transform: uppercase;
}
.hero-lead {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  max-width: 560px;
  margin-bottom: 1.75rem;
  line-height: 1.7;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .75rem 1.6rem;
  background: var(--c-teal);
  color: var(--c-forest);
  font-family: var(--ff-head);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 700;
  border-radius: var(--radius-card);
  transition: background .2s ease, transform .2s ease;
  min-height: 44px;
}
.hero-cta:hover {
  background: var(--c-sand);
  color: var(--c-forest);
  transform: translateY(-2px);
}

/* ══════════════════════════════════════════
   PAGE BODY WRAPPER
══════════════════════════════════════════ */
.page-body {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--section-gap) var(--gap);
  width: 100%;
}

/* ══════════════════════════════════════════
   PAGE HEADER (section / story / about / privacy)
══════════════════════════════════════════ */
.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--c-bark);
}
.page-h1 {
  font-family: var(--ff-head);
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--c-sand);
  line-height: 1.25;
  margin: .8rem 0 .75rem;
}
.page-lead {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  line-height: 1.7;
  max-width: 680px;
}

/* ══════════════════════════════════════════
   BREADCRUMB
══════════════════════════════════════════ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .3rem .4rem;
  font-size: .8rem;
  color: var(--c-text-dim);
  margin-bottom: .75rem;
  font-family: var(--ff-mono);
}
.breadcrumb a { color: var(--c-teal); }
.breadcrumb a:hover { color: var(--c-sand); }
.breadcrumb span { color: var(--c-text-dim); }

/* ══════════════════════════════════════════
   CONTENT / PROSE
══════════════════════════════════════════ */
.content-section { margin-bottom: var(--section-gap); }
.content-inner { max-width: 760px; }

.prose h2 {
  font-family: var(--ff-head);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-sand);
  margin: 2.2rem 0 .9rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--c-bark);
}
.prose h3 {
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-teal);
  margin: 1.6rem 0 .6rem;
}
.prose h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--c-sand);
  margin: 1.2rem 0 .4rem;
}
.prose p { margin-bottom: 1.1rem; line-height: 1.8; }
.prose a { color: var(--c-teal); border-bottom: 1px solid rgba(92,198,176,.3); }
.prose a:hover { color: var(--c-sand); border-bottom-color: var(--c-sand); }
.prose ul, .prose ol { margin: .8rem 0 1.1rem 1.4rem; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: .4rem; line-height: 1.7; }
.prose blockquote {
  border-left: 3px solid var(--c-teal);
  padding: .7rem 1.2rem;
  margin: 1.4rem 0;
  background: rgba(92,198,176,.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-dim);
  font-style: italic;
}
.prose code {
  background: var(--c-forest3);
  color: var(--c-teal);
  padding: .15em .45em;
  border-radius: 4px;
  font-size: .9em;
}
.prose pre {
  background: var(--c-forest3);
  padding: 1.2rem;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 1.2rem 0;
  font-size: .88rem;
  line-height: 1.6;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4rem 0;
  font-size: .93rem;
}
.prose th {
  background: var(--c-forest3);
  color: var(--c-teal);
  font-family: var(--ff-head);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .65rem .9rem;
  text-align: left;
}
.prose td {
  border-bottom: 1px solid var(--c-forest3);
  padding: .6rem .9rem;
  color: var(--c-text);
}
.prose tr:hover td { background: rgba(92,198,176,.04); }

/* ══════════════════════════════════════════
   CARDS
══════════════════════════════════════════ */
.section-heading {
  font-family: var(--ff-head);
  font-size: clamp(.95rem, 2vw, 1.2rem);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-teal);
  margin-bottom: 1.5rem;
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gap);
}
.cards-section,
.children-section { margin-bottom: var(--section-gap); }

.card {
  position: relative;
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .22s cubic-bezier(.25,.8,.25,1), box-shadow .22s ease;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,.44);
}
.card-media { overflow: hidden; max-height: 180px; }
.card-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform .4s ease;
}
.card:hover .card-media img { transform: scale(1.04); }
.card-body {
  padding: 1.1rem 1.2rem .8rem;
  flex: 1;
}
.card-title {
  font-family: var(--ff-head);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  line-height: 1.35;
  margin-bottom: .5rem;
}
.card-title a { color: var(--c-sand); }
.card-title a:hover { color: var(--c-teal); }
.card-desc {
  font-size: .88rem;
  color: var(--c-text-dim);
  line-height: 1.6;
  margin-bottom: .6rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-date {
  display: block;
  font-size: .75rem;
  color: var(--c-bark);
  font-family: var(--ff-mono);
  margin-bottom: .4rem;
}
.card-rule {
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--c-teal) 0%, var(--c-terracotta) 100%);
  border-radius: 0 0 var(--radius-card) var(--radius-card);
}

/* ══════════════════════════════════════════
   TOPICS GRID （首页全部专题）
══════════════════════════════════════════ */
.topics-section { margin-bottom: var(--section-gap); }
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--gap);
}
.topic-item {
  background: var(--c-forest3);
  border: 1px solid var(--c-bark);
  border-radius: var(--radius-card);
  padding: 1.2rem 1.3rem;
  transition: border-color .2s ease, background .2s ease;
}
.topic-item:hover {
  border-color: var(--c-teal);
  background: rgba(92,198,176,.06);
}
.topic-item h3 {
  font-family: var(--ff-head);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: .45rem;
}
.topic-item h3 a { color: var(--c-sand); }
.topic-item h3 a:hover { color: var(--c-teal); }
.topic-item p { font-size: .85rem; color: var(--c-text-dim); line-height: 1.6; }

/* ══════════════════════════════════════════
   STORY PAGE
══════════════════════════════════════════ */
.story-page .story-header {
  margin-bottom: 2.5rem;
}
.story-hero {
  width: 100%;
  max-height: 420px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-hero);
}
.story-hero-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.story-header-inner { max-width: 760px; }
.story-h1 {
  font-family: var(--ff-head);
  font-size: clamp(1.3rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-sand);
  line-height: 1.25;
  margin: .75rem 0 .7rem;
}
.story-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.2rem;
  margin-bottom: .8rem;
}
.story-date {
  font-size: .8rem;
  font-family: var(--ff-mono);
  color: var(--c-bark);
}
.story-lead {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: .5rem;
}
.story-content { margin-bottom: var(--section-gap); }

/* Related */
.related-section { margin-top: var(--section-gap); padding-top: 2rem; border-top: 1px solid var(--c-bark); }
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.related-item {
  background: var(--c-forest3);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius-card);
  padding: 1rem 1.1rem;
  transition: border-color .2s ease;
}
.related-item:hover { border-color: var(--c-teal); }
.related-item a {
  font-family: var(--ff-head);
  font-size: .78rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--c-sand);
  display: block;
  margin-bottom: .4rem;
}
.related-item a:hover { color: var(--c-teal); }
.related-item p { font-size: .82rem; color: var(--c-text-dim); line-height: 1.55; }

/* ══════════════════════════════════════════
   ABOUT PAGE
══════════════════════════════════════════ */
.about-links { margin-top: var(--section-gap); padding-top: 2rem; border-top: 1px solid var(--c-bark); }
.about-link-grid {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}
.about-link-item a {
  display: inline-flex;
  align-items: center;
  padding: .6rem 1.1rem;
  background: var(--c-forest3);
  border: 1px solid var(--c-bark);
  border-radius: var(--radius-pill);
  font-family: var(--ff-head);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-sand);
  transition: border-color .2s, background .2s, color .2s;
  min-height: 40px;
}
.about-link-item a:hover {
  border-color: var(--c-teal);
  background: rgba(92,198,176,.08);
  color: var(--c-teal);
}

/* ══════════════════════════════════════════
   PRIVACY PAGE
══════════════════════════════════════════ */
.privacy-date {
  font-size: .82rem;
  color: var(--c-bark);
  font-family: var(--ff-mono);
  margin: .4rem 0 .8rem;
}
.privacy-footer-links { margin-top: var(--section-gap); padding-top: 2rem; border-top: 1px solid var(--c-bark); }
.pfl-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.pfl-row a {
  display: inline-flex;
  align-items: center;
  padding: .6rem 1.2rem;
  background: var(--c-forest3);
  border: 1px solid var(--c-bark);
  border-radius: var(--radius-card);
  font-family: var(--ff-head);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-sand);
  min-height: 40px;
  transition: border-color .2s, color .2s;
}
.pfl-row a:hover { border-color: var(--c-teal); color: var(--c-teal); }

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.site-footer {
  background: var(--c-forest2);
  border-top: 2px solid var(--c-bark);
  margin-top: var(--section-gap);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem var(--gap);
  padding: 3rem 2rem 2rem;
}
.footer-col strong {
  display: block;
  font-family: var(--ff-head);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-teal);
  margin-bottom: .9rem;
}
.footer-brand {
  font-family: var(--ff-head);
  font-size: .85rem !important;
  letter-spacing: .12em !important;
  color: var(--c-sand) !important;
  margin-bottom: .7rem !important;
}
.footer-col p { font-size: .85rem; color: var(--c-text-dim); line-height: 1.65; }
.footer-nav ul { display: flex; flex-direction: column; gap: .35rem; }
.footer-nav ul li a {
  font-size: .85rem;
  color: var(--c-text-dim);
  transition: color .2s;
  display: inline-block;
  min-height: 28px;
  line-height: 1.5;
}
.footer-nav ul li a:hover { color: var(--c-teal); }

/* Footer form */
.footer-form {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-top: .7rem;
}
.footer-form input[type="email"] {
  background: var(--c-input-bg);
  border: 1px solid var(--c-bark);
  border-radius: var(--radius-sm);
  padding: .6rem .9rem;
  color: var(--c-text);
  font-family: var(--ff-mono);
  font-size: .88rem;
  outline: none;
  transition: border-color .2s;
  min-height: 40px;
}
.footer-form input[type="email"]:focus { border-color: var(--c-teal); }
.footer-form input[type="email"]::placeholder { color: var(--c-bark); }
.footer-form button {
  background: var(--c-teal);
  color: var(--c-forest);
  border: none;
  border-radius: var(--radius-sm);
  padding: .6rem 1.1rem;
  font-family: var(--ff-head);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 700;
  min-height: 40px;
  transition: background .2s ease;
  align-self: flex-start;
}
.footer-form button:hover { background: var(--c-sand); }

.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.2rem 2rem 1.5rem;
  border-top: 1px solid var(--c-forest3);
  text-align: center;
}
.footer-bottom p { font-size: .8rem; color: var(--c-text-dim); line-height: 1.7; }
.footer-bottom a { color: var(--c-text-dim); }
.footer-bottom a:hover { color: var(--c-teal); }
.footer-note { font-size: .75rem !important; color: var(--c-bark) !important; margin-top: .3rem; }

/* ══════════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .card { transition: none; }
  .hero-cta { transition: none; }
  .card:hover .card-media img { transform: none; }
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-col.footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  :root { --gap: 1rem; --section-gap: 2.5rem; }

  .site-header nav {
    flex-wrap: wrap;
    padding: .3rem .5rem;
    gap: 0;
  }
  .nav-left, .nav-right {
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }
  .brand-row { padding: .7rem 1rem .5rem; }
  .brand-name { font-size: .9rem; }

  .hero-wrap { min-height: 60vh; }
  .hero-content { padding: 2.5rem 1.1rem 2.5rem; }
  .hero-h1 { font-size: 1.4rem; }

  .page-body { padding: 2rem 1rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .topics-grid { grid-template-columns: 1fr; }
  .related-list { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-inner { padding: 2rem 1rem 1rem; }
  .footer-bottom { padding: 1rem 1rem 1.2rem; }

  .story-hero { max-height: 240px; }
  .story-hero-img { height: 240px; }

  .site-header nav ul li a { font-size: .62rem; padding: .5rem .45rem; }
}

@media (max-width: 420px) {
  .hero-h1 { font-size: 1.2rem; }
  .page-h1 { font-size: 1.15rem; }
  .story-h1 { font-size: 1.1rem; }
  .hero-badge { font-size: .6rem; }
}