/* minimal1 — 极简主义 纯黑白 */
:root {
  --min-black: #000000;
  --min-white: #ffffff;
  --min-gray: #888888;
  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --max-width: 640px;
  --space-xl: 120px;
  --space-lg: 64px;
  --space-md: 32px;
  --space-sm: 16px;
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body.tpl-minimal1 {
  font-family: var(--font-stack);
  color: var(--min-black);
  background: var(--min-white);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-weight: 400;
  letter-spacing: 0.01em;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header */
.min-header {
  padding: var(--space-md) var(--space-sm);
}
.min-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.min-site-name {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.min-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
}
.min-nav a {
  font-size: 0.85rem;
  color: var(--min-gray);
  transition: color 0.2s;
}
.min-nav a:hover,
.min-nav a.active {
  color: var(--min-black);
}

.menu-toggle {
  display: none;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--min-black);
  position: relative;
}
.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px;
  height: 1px;
  background: var(--min-black);
}
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }
.menu-toggle.active span { background: transparent; }
.menu-toggle.active span::before { top: 0; transform: rotate(45deg); }
.menu-toggle.active span::after { top: 0; transform: rotate(-45deg); }

.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--min-white);
  z-index: 100;
  padding: var(--space-lg) var(--space-md);
  transform: translateY(-100%);
  transition: transform 0.3s;
}
.nav-mobile.open { transform: translateY(0); }
.nav-mobile ul { display: flex; flex-direction: column; gap: var(--space-sm); }
.nav-mobile a {
  font-size: 1.5rem;
  font-weight: 300;
  display: block;
  padding: var(--space-sm) 0;
}

/* Main */
.min-main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-sm) var(--space-xl);
  width: 100%;
}
.min-main-article { padding-top: var(--space-md); }

.min-featured {
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--min-black);
}
.min-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--min-gray);
  margin-bottom: var(--space-sm);
}
.min-featured-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 400;
  line-height: 1.25;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}
.min-featured-title a:hover { text-decoration: underline; text-underline-offset: 4px; }
.min-featured-summary {
  font-size: 1rem;
  color: var(--min-gray);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
  max-width: 540px;
}
.min-meta {
  font-size: 0.8rem;
  color: var(--min-gray);
}

.min-page-header {
  padding: var(--space-lg) 0 var(--space-md);
}
.min-page-header h1 {
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.min-list-section { padding-top: var(--space-md); }
.min-section-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--min-gray);
  margin-bottom: var(--space-md);
  font-weight: 400;
}

.min-empty {
  color: var(--min-gray);
  padding: var(--space-lg) 0;
}

.min-article-list { border-top: 1px solid var(--min-black); }
.min-article-item { border-bottom: 1px solid var(--min-black); }
.min-article-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--space-md) 0;
  transition: opacity 0.2s;
}
.min-article-link:hover { opacity: 0.6; }
.min-article-title {
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
}
.min-article-meta {
  display: flex;
  gap: 16px;
  font-size: 0.75rem;
  color: var(--min-gray);
  letter-spacing: 0.02em;
}
.min-article-cat { text-transform: uppercase; letter-spacing: 0.1em; }

/* Article */
.min-article-header {
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--min-black);
}
.min-article-title {
  font-size: clamp(1.75rem, 4.5vw, 2.25rem);
  font-weight: 400;
  line-height: 1.3;
  margin: var(--space-sm) 0;
  letter-spacing: -0.02em;
}
.min-article-body {
  font-size: 1rem;
  line-height: 1.9;
  max-width: 580px;
}
.min-article-body p { margin-bottom: 1.4em; }
.min-article-body h2 {
  font-size: 1.15rem;
  font-weight: 500;
  margin: 2em 0 0.8em;
  letter-spacing: -0.01em;
}
.min-figure { margin: 2em 0; }
.min-figure figcaption {
  font-size: 0.8rem;
  color: var(--min-gray);
  margin-top: 8px;
}
.min-article-footer {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
}
.min-back {
  font-size: 0.85rem;
  color: var(--min-gray);
}
.min-back:hover { color: var(--min-black); }

.min-related {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  font-size: 0.85rem;
}
.pagination-btn { color: var(--min-black); }
.pagination-btn:hover { text-decoration: underline; }
.pagination-info { color: var(--min-gray); }

/* 404 */
.main-content {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-sm);
  width: 100%;
}
.error-page { text-align: left; }
.error-code {
  font-size: 6rem;
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.05em;
}
.error-title {
  font-size: 1.5rem;
  font-weight: 400;
  margin: var(--space-sm) 0;
}
.error-desc {
  color: var(--min-gray);
  margin-bottom: var(--space-md);
}
.btn-back {
  font-size: 0.85rem;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Footer */
.min-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-sm) var(--space-md);
  width: 100%;
}
.min-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: var(--space-sm);
}
.min-footer-nav a {
  font-size: 0.75rem;
  color: var(--min-gray);
  letter-spacing: 0.05em;
}
.min-footer-nav a:hover { color: var(--min-black); }
.min-footer-copy {
  font-size: 0.75rem;
  color: var(--min-gray);
}

/* Responsive */
@media (max-width: 640px) {
  :root {
    --space-xl: 80px;
    --space-lg: 48px;
  }
  html { font-size: 16px; }
  .min-nav { display: none; }
  .menu-toggle { display: flex; }
  .nav-mobile { display: block; }
  .min-header-inner { justify-content: space-between; align-items: center; }
  .min-featured { padding: var(--space-md) 0; }
}