/* ═════════════════════════════════════════════════════════════════════
   THE DAOZHU JOURNAL — EDITORIAL MAGAZINE ARTICLE READING STYLESHEET
   ═════════════════════════════════════════════════════════════════════ */
:root {
  --paper: #fafaf7;
  --paper-raised: #f3f1ea;
  --paper-subtle: #f8f6f0;
  --ink: #111418;
  --ink-secondary: #2b2f38;
  --quiet: #6b7280;
  --quiet-strong: #3f444e;
  --gold: #b08d57;
  --gold-hover: #9c7844;
  --line: rgba(17, 20, 24, 0.08);
  --line-strong: rgba(17, 20, 24, 0.18);
  --accent: #b08d57;
  --body-fs: 17.5px;
  --serif: "Noto Serif SC", "Songti SC", STSong, "Source Han Serif SC", Georgia, serif;
  --sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", Menlo, Consolas, monospace;
}

[data-theme="dark"] {
  --paper: #0b0d10;
  --paper-raised: #13171d;
  --paper-subtle: #181c24;
  --ink: #f0eee9;
  --ink-secondary: #d6d4ce;
  --quiet: #8b929e;
  --quiet-strong: #b5bac4;
  --gold: #c9a46a;
  --gold-hover: #dcba82;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.2);
  --accent: #c9a46a;
}

html, body {
  background-color: var(--paper) !important;
  color: var(--ink) !important;
  font-family: var(--sans);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ── 1. READING PROGRESS BAR ── */
.reader-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2.5px;
  width: 0%;
  background: var(--gold);
  z-index: 1001;
  transition: width 0.1s linear;
}

/* ── 2. MAGAZINE TOPBAR ── */
.magazine-nav {
  height: 64px;
  padding: 0 clamp(20px, 4vw, 60px);
  position: sticky;
  top: 0;
  background-color: rgba(250, 250, 247, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .magazine-nav {
  background-color: rgba(11, 13, 16, 0.92);
}

.nav-container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-back:hover {
  color: var(--gold);
}

.nav-back svg {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

.nav-article-title {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--quiet);
  max-width: 380px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.nav-article-title.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-btn {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.nav-btn.theme-toggle {
  width: 30px;
  height: 30px;
  padding: 0;
  border-radius: 50%;
}

.nav-btn.theme-toggle svg {
  width: 15px;
  height: 15px;
}

.sun-icon { display: block; }
.moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

.nav-index-link {
  background: var(--gold) !important;
  color: #ffffff !important;
  border-color: var(--gold) !important;
  padding: 5px 12px;
  text-decoration: none;
}

.nav-index-link:hover {
  background: var(--gold-hover) !important;
}

/* ── 3. ARTICLE CONTAINER ── */
main {
  max-width: 800px !important;
  margin: 0 auto !important;
  padding: clamp(48px, 6vw, 84px) clamp(20px, 4vw, 40px) 120px !important;
}

/* ── 4. EDITORIAL COVER HEADER BLOCK ── */
.editorial-masthead-kicker {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.editorial-masthead-kicker::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

article h1 {
  font-family: var(--serif) !important;
  font-weight: 700 !important;
  font-size: clamp(30px, 4.4vw, 44px) !important;
  line-height: 1.28 !important;
  letter-spacing: -0.02em !important;
  color: var(--ink) !important;
  margin-bottom: 22px !important;
  text-rendering: optimizeLegibility;
}

/* Editorial Dek (Pull Summary) */
.editorial-dek {
  font-family: var(--serif);
  font-size: clamp(16px, 1.4vw, 18.5px);
  line-height: 1.75;
  color: var(--quiet-strong);
  padding: 18px 24px;
  background: var(--paper-raised);
  border-left: 3px solid var(--gold);
  margin-bottom: 34px;
  border-radius: 0 4px 4px 0;
  font-weight: 400;
}

/* Byline Colophon Bar */
.editorial-colophon-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 3px double var(--line-strong);
  margin-bottom: 48px;
  font-size: 13px;
  color: var(--quiet);
  flex-wrap: wrap;
}

.colophon-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.colophon-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  padding: 2px;
  overflow: hidden;
  display: inline-block;
}

.colophon-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.colophon-name {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink);
  font-size: 14.5px;
}

.colophon-role {
  font-size: 12px;
  color: var(--quiet);
}

.colophon-stats {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--quiet);
  letter-spacing: 0.05em;
}

/* ── 5. PROSE BODY TYPOGRAPHY ── */
article {
  font-family: var(--serif) !important;
  font-size: var(--body-fs) !important;
  line-height: 1.95 !important;
  color: var(--ink) !important;
  text-rendering: optimizeLegibility;
}

/* Drop Cap (首字下沉) */
article > p:first-of-type::first-letter {
  font-family: var(--serif);
  font-size: 3.6em;
  float: left;
  line-height: 0.82;
  margin-right: 0.16em;
  margin-top: 0.08em;
  color: var(--gold);
  font-weight: 700;
}

article p {
  font-size: inherit !important;
  color: var(--ink-secondary) !important;
  line-height: 1.95 !important;
  margin-bottom: 28px !important;
  letter-spacing: 0.015em;
}

article strong {
  font-weight: 600 !important;
  color: var(--ink) !important;
}

/* Subheadings */
article h2 {
  font-family: var(--serif) !important;
  font-weight: 700 !important;
  font-size: clamp(22px, 3.2vw, 28px) !important;
  line-height: 1.35 !important;
  color: var(--ink) !important;
  margin-top: 60px !important;
  margin-bottom: 22px !important;
  padding-bottom: 12px !important;
  border-bottom: 1px solid var(--line) !important;
  letter-spacing: -0.01em;
  position: relative;
}

article h2::before {
  content: "§ ";
  color: var(--gold);
  font-weight: 400;
}

article h3 {
  font-family: var(--serif) !important;
  font-weight: 600 !important;
  font-size: 20px !important;
  color: var(--ink) !important;
  margin-top: 42px !important;
  margin-bottom: 16px !important;
}

/* Editorial Pullquote */
article blockquote {
  margin: 44px auto !important;
  padding: 24px 36px !important;
  border-top: 1px solid var(--gold) !important;
  border-bottom: 1px solid var(--gold) !important;
  border-left: none !important;
  border-right: none !important;
  background: var(--paper-raised) !important;
  font-family: var(--serif) !important;
  font-size: 19px !important;
  line-height: 1.75 !important;
  color: var(--ink) !important;
  text-align: center !important;
  font-style: normal !important;
  border-radius: 0 !important;
}

article hr {
  border: none !important;
  height: 1px !important;
  background: var(--line-strong) !important;
  margin: 56px auto !important;
  width: 60% !important;
}

article hr::after {
  content: "❖";
  display: block;
  text-align: center;
  color: var(--gold);
  font-size: 14px;
  margin-top: -10px;
  background: var(--paper);
  width: 30px;
  margin-left: auto;
  margin-right: auto;
}

/* Lists */
article ul, article ol {
  margin: 0 0 28px 24px !important;
}

article li {
  font-size: inherit !important;
  color: var(--ink-secondary) !important;
  margin-bottom: 12px !important;
  line-height: 1.85 !important;
}

/* Related Models Box */
.related-models {
  margin: 44px 0 !important;
  padding: 24px 28px !important;
  background: var(--paper-raised) !important;
  border: 1px solid var(--line) !important;
  border-left: 3px solid var(--gold) !important;
  border-radius: 2px !important;
}

.related-models h2 {
  border-bottom: none !important;
  margin-top: 0 !important;
  padding-bottom: 0 !important;
  font-size: 16.5px !important;
  color: var(--ink) !important;
}

.related-models h2::before {
  content: "" !important;
}

/* ── 6. COLOPHON END STAMP & AUTHOR CARD ── */
.article-colophon-stamp {
  margin: 64px 0 48px;
  text-align: center;
  padding: 32px 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stamp-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.stamp-text {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--quiet-strong);
}

/* Article Navigation (Next / Prev) */
.article-nav {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 16px !important;
  margin-top: 48px !important;
  padding-top: 0 !important;
  border-top: none !important;
}

.article-nav-card {
  padding: 18px 20px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.article-nav-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(17, 20, 24, 0.05);
}

.nav-card-label {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-card-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

/* Footer */
.footer {
  text-align: center !important;
  padding: 48px 24px !important;
  font-family: var(--mono) !important;
  font-size: 11.5px !important;
  color: var(--quiet) !important;
  letter-spacing: 0.08em !important;
  border-top: 1px solid var(--line) !important;
  background: var(--paper);
}

@media (max-width: 640px) {
  .nav-article-title {
    display: none;
  }
  .article-nav {
    grid-template-columns: 1fr !important;
  }
}