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

/* ============================================================
   CSS 变量 & 重置
   ============================================================ */
:root {
  --mint: #b4fde1;
  --fog: #add8e6;
  --ink: #172620;
  --ink2: #1f3328;
  --ink3: #2a4238;
  --mint-dark: #7eecbf;
  --fog-dark: #7ab8cc;
  --white: #f4fef9;
  --card-bg: #1e332b;
  --card-bg2: #233d30;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --border: 3px solid;
  --border-mint: 3px solid var(--mint);
  --border-fog: 3px solid var(--fog);
  --shadow-clay: 4px 4px 0px var(--mint-dark), inset -2px -2px 8px rgba(0,0,0,0.25);
  --shadow-clay-fog: 4px 4px 0px var(--fog-dark), inset -2px -2px 8px rgba(0,0,0,0.22);
  --shadow-btn: 3px 3px 0px var(--mint-dark), inset -1px -1px 6px rgba(0,0,0,0.2);
  --font-head: 'Syncopate', 'Space Mono', monospace;
  --font-body: 'Space Mono', 'Courier New', monospace;
  --nav-h: 64px;
  --anchor-h: 40px;
  --max-w: 860px;
  --max-w-wide: 1100px;
  --ease-clay: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--ink);
  color: var(--white);
}

body {
  font-family: var(--font-body);
  line-height: 1.7;
  background: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--mint);
  text-decoration: none;
  transition: color 0.18s ease;
}

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

/* ============================================================
   导航 header > nav > a×n（无 ul/li）
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(23, 38, 32, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: var(--border-mint);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px 8px;
  width: 100%;
  max-width: var(--max-w-wide);
  padding: 0 16px;
}

.brand-home {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--mint) !important;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: var(--border-mint);
  box-shadow: var(--shadow-clay);
  background: var(--ink2);
  white-space: nowrap;
  transition: transform 0.2s var(--ease-clay), box-shadow 0.2s ease;
  order: 0;
  margin: 0 auto;
}

.brand-home:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 5px 5px 0px var(--mint-dark), inset -2px -2px 8px rgba(0,0,0,0.25);
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--fog);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.2s var(--ease-clay);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--mint);
  background: var(--ink3);
  border-color: var(--mint);
  transform: translateY(-1px);
}

/* ============================================================
   锚点条（anchor-strip）
   ============================================================ */
.anchor-strip {
  position: sticky;
  top: var(--nav-h);
  z-index: 90;
  background: var(--ink2);
  border-bottom: 2px solid var(--ink3);
  height: var(--anchor-h);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  font-size: 0.78rem;
  color: var(--fog-dark);
}

.anchor-strip a {
  color: var(--mint);
}

.anchor-strip span[aria-hidden] {
  color: var(--fog-dark);
}

/* ============================================================
   Hero（斜切底边 + 网格底纹）
   ============================================================ */
.hero,
.page-hero {
  position: relative;
  min-height: 45vh;
  background: linear-gradient(135deg, var(--ink2) 0%, var(--ink3) 60%, #0d1e18 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 48px 24px 80px;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(180,253,225,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180,253,225,0.07) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
}

.hero-inner,
.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  text-align: left;
}

.hero-h1 {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.04em;
  line-height: 1.25;
  margin-bottom: 16px;
  text-shadow: 2px 2px 0 var(--ink);
}

.page-hero-inner h1 {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.04em;
  line-height: 1.3;
  margin-bottom: 12px;
  text-shadow: 2px 2px 0 var(--ink);
}

.hero-desc,
.page-hero-desc {
  font-size: 1rem;
  color: var(--fog);
  max-width: 580px;
  margin-bottom: 24px;
  line-height: 1.7;
}

.eyebrow-tag {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--mint);
  border-radius: 6px;
  padding: 3px 10px;
  margin-bottom: 12px;
  font-weight: 700;
}

.pub-date {
  display: block;
  font-size: 0.8rem;
  color: var(--fog-dark);
  margin-bottom: 10px;
  letter-spacing: 0.06em;
}

/* 斜切底边 */
.hero-cut {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 52px;
  background: var(--ink);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  z-index: 3;
}

/* ============================================================
   按钮
   ============================================================ */
.btn-clay {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: var(--radius-md);
  padding: 12px 28px;
  min-height: 46px;
  cursor: pointer;
  transition: transform 0.2s var(--ease-clay), box-shadow 0.2s ease;
  border: var(--border-mint);
}

.btn-clay--primary {
  background: var(--mint);
  color: var(--ink);
  box-shadow: var(--shadow-btn);
}

.btn-clay--primary:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 5px 5px 0 var(--mint-dark), inset -2px -2px 8px rgba(0,0,0,0.18);
  color: var(--ink);
}

.btn-clay--primary:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 1px 1px 0 var(--mint-dark);
}

/* ============================================================
   main > article > section
   ============================================================ */
main {
  min-height: 60vh;
}

/* ============================================================
   내容区块通用
   ============================================================ */
.home-content,
.home-faq,
.home-articles,
.faq-related-nav,
.faq-body,
.faq-articles,
.article-body,
.article-more,
.about-body,
.about-links,
.privacy-body,
.privacy-footer-links,
.default-body {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 20px;
}

/* ============================================================
   content-prose（正文 HTML 片段样式）
   ============================================================ */
.content-prose {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--white);
}

.content-prose h2 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--mint);
  margin: 2em 0 0.5em;
  letter-spacing: 0.04em;
}

.content-prose h2 + hr {
  border: none;
  border-top: 2px solid var(--mint);
  opacity: 0.35;
  margin-bottom: 1em;
}

.content-prose h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--fog);
  margin: 1.6em 0 0.4em;
}

.content-prose p {
  margin-bottom: 1.1em;
  color: rgba(244,254,249,0.88);
}

.content-prose a {
  color: var(--mint);
  border-bottom: 1px solid var(--mint-dark);
}

.content-prose a:hover {
  color: var(--fog);
  border-bottom-color: var(--fog);
}

.content-prose ul,
.content-prose ol {
  padding-left: 1.4em;
  margin-bottom: 1.1em;
}

.content-prose li {
  margin-bottom: 0.4em;
  color: rgba(244,254,249,0.85);
}

.content-prose blockquote {
  border-left: 4px solid var(--mint);
  padding: 10px 18px;
  background: var(--ink2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.2em 0;
  color: var(--fog);
}

.content-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
  font-size: 0.92rem;
}

.content-prose th {
  background: var(--ink2);
  color: var(--mint);
  padding: 10px 14px;
  text-align: left;
  border: 1px solid var(--ink3);
}

.content-prose td {
  padding: 8px 14px;
  border: 1px solid var(--ink3);
  color: rgba(244,254,249,0.82);
  vertical-align: top;
}

.content-prose tr:nth-child(even) td {
  background: var(--ink2);
}

.content-prose time {
  font-size: 0.82rem;
  color: var(--fog-dark);
  letter-spacing: 0.05em;
}

/* ============================================================
   h2 + hr 装饰
   ============================================================ */
h2 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--mint);
  letter-spacing: 0.06em;
  margin-bottom: 0;
}

h2 + hr {
  border: none;
  border-top: 3px solid var(--mint);
  opacity: 0.4;
  margin: 8px 0 24px;
}

/* ============================================================
   카드 그리드  ul > li > article > h3/p
   ============================================================ */
.card-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 8px;
}

.card-grid--articles {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.card-grid--sm {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

/* 카드 애니메이션 stagger */
.card-item {
  opacity: 0;
  transform: translateY(20px);
  animation: cardAppear 0.45s var(--ease-clay) forwards;
  animation-delay: calc(var(--i, 0) * 0.08s + 0.1s);
}

@keyframes cardAppear {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 클레이 카드 */
.clay-card {
  background: var(--card-bg);
  border: var(--border-mint);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-clay);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.2s var(--ease-clay), box-shadow 0.2s ease;
  height: 100%;
}

.clay-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 6px 6px 0 var(--mint-dark), inset -2px -2px 10px rgba(0,0,0,0.3);
}

.clay-card--article {
  border-color: var(--fog);
  box-shadow: var(--shadow-clay-fog);
}

.clay-card--article:hover {
  box-shadow: 6px 6px 0 var(--fog-dark), inset -2px -2px 10px rgba(0,0,0,0.3);
}

.clay-card--sm {
  padding: 14px 14px;
  border-radius: var(--radius-sm);
}

.clay-card h3 {
  font-family: var(--font-head);
  font-size: 0.88rem;
  color: var(--mint);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.clay-card--article h3 {
  color: var(--fog);
}

.clay-card p {
  font-size: 0.85rem;
  color: rgba(244,254,249,0.75);
  line-height: 1.6;
  flex: 1;
}

.clay-card h3 a {
  color: inherit;
  text-decoration: none;
}

.clay-card h3 a:hover {
  color: var(--white);
}

.card-date {
  font-size: 0.75rem;
  color: var(--fog-dark);
  letter-spacing: 0.05em;
}

.card-cta {
  display: inline-block;
  font-size: 0.78rem;
  font-family: var(--font-head);
  color: var(--ink);
  background: var(--mint);
  border-radius: 8px;
  padding: 5px 14px;
  margin-top: 4px;
  font-weight: 700;
  transition: background 0.18s ease, transform 0.18s var(--ease-clay);
  align-self: flex-start;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
}

.clay-card--article .card-cta {
  background: var(--fog);
}

.card-cta:hover {
  background: var(--mint-dark);
  transform: translateY(-2px) scale(1.04);
  color: var(--ink);
}

/* ============================================================
   Pill 导航
   ============================================================ */
.pill-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 16px;
  border-radius: 50px;
  border: 2px solid var(--mint);
  color: var(--mint);
  font-size: 0.8rem;
  background: var(--ink2);
  transition: background 0.18s ease, transform 0.18s var(--ease-clay), box-shadow 0.18s ease;
  box-shadow: 2px 2px 0 var(--mint-dark);
}

.pill-link:hover {
  background: var(--mint);
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 3px 3px 0 var(--mint-dark);
}

/* ============================================================
   About 内页导航格子
   ============================================================ */
.about-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 8px;
}

.about-nav-card {
  color: var(--mint) !important;
  font-size: 0.82rem;
  font-family: var(--font-head);
  letter-spacing: 0.04em;
  text-align: center;
  justify-content: center;
}

.about-nav-card:hover {
  color: var(--white) !important;
}

/* ============================================================
   Article hero 图片
   ============================================================ */
.article-hero-figure {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 40%;
  overflow: hidden;
  z-index: 1;
  opacity: 0.3;
}

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

/* ============================================================
   页脚  footer 三列 dl
   ============================================================ */
.site-footer {
  background: var(--ink2);
  border-top: var(--border-mint);
  padding: 40px 24px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 20px 32px;
  justify-content: center;
  max-width: 100%;
}

.footer-brand {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.1em;
  width: 100%;
  text-align: center;
  text-shadow: 3px 3px 0 var(--ink);
  margin-bottom: 8px;
}

.footer-col {
  min-width: 140px;
  flex: 1 1 140px;
  max-width: 200px;
}

.footer-col dt {
  font-family: var(--font-head);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--mint);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--mint);
  opacity: 0.9;
}

.footer-col dd {
  margin: 0 0 6px 0;
}

.footer-col dd a {
  font-size: 0.82rem;
  color: rgba(244,254,249,0.7);
  transition: color 0.15s ease;
  display: inline-block;
  min-height: 28px;
  line-height: 28px;
}

.footer-col dd a:hover {
  color: var(--mint);
}

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(244,254,249,0.4);
  padding-top: 16px;
  border-top: 1px solid var(--ink3);
  margin-top: 8px;
  letter-spacing: 0.05em;
}

/* ============================================================
   브랜드 로고 이미지
   ============================================================ */
.brand-logo-img {
  max-height: 60px;
  margin-bottom: 20px;
}

/* ============================================================
   반응형 모바일
   ============================================================ */
@media (max-width: 600px) {
  .site-header {
    height: auto;
    min-height: var(--nav-h);
    padding: 8px 0;
  }

  .main-nav {
    gap: 4px 6px;
    padding: 4px 10px;
    justify-content: flex-start;
  }

  .brand-home {
    font-size: 0.85rem;
    padding: 8px 10px;
    margin: 0;
  }

  .nav-link {
    font-size: 0.7rem;
    padding: 8px 8px;
    min-height: 40px;
  }

  .hero,
  .page-hero {
    min-height: 38vh;
    padding: 36px 16px 72px;
  }

  .hero-h1 {
    font-size: 1.4rem;
  }

  .page-hero-inner h1 {
    font-size: 1.25rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .card-grid--sm {
    grid-template-columns: 1fr 1fr;
  }

  .about-nav-grid {
    grid-template-columns: 1fr 1fr;
  }

  .article-hero-figure {
    display: none;
  }

  .footer-brand {
    font-size: 1.5rem;
  }

  .footer-col {
    min-width: 120px;
  }

  .home-content,
  .home-faq,
  .home-articles,
  .faq-related-nav,
  .faq-body,
  .faq-articles,
  .article-body,
  .article-more,
  .about-body,
  .about-links,
  .privacy-body,
  .privacy-footer-links,
  .default-body {
    padding: 32px 14px;
  }
}

@media (max-width: 400px) {
  .card-grid--sm {
    grid-template-columns: 1fr;
  }

  .about-nav-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Prefers-reduced-motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .card-item {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .clay-card,
  .btn-clay,
  .pill-link,
  .card-cta,
  .nav-link,
  .brand-home {
    transition: none;
  }
}