:root {
  --bg: #f7f1e8;
  --bg-deep: #efe6d8;
  --paper: #fffcf7;
  --ink: #2a241c;
  --ink-soft: #5c5348;
  --muted: #8a7f70;
  --accent: #8b3a3a;
  --accent-soft: #c4a484;
  --line: rgba(42, 36, 28, 0.12);
  --shadow: 0 18px 50px rgba(42, 36, 28, 0.08);
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(196, 164, 132, 0.18), transparent 50%),
    radial-gradient(ellipse 60% 40% at 90% 100%, rgba(139, 58, 58, 0.06), transparent 45%),
    var(--bg);
  font-family: var(--serif);
  line-height: 1.9;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

.site-wrap {
  width: min(920px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 5rem;
}

/* Cover */
.cover {
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
  padding: 3rem 0 2rem;
}
.cover-kicker {
  font-family: var(--sans);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--muted);
}
.cover h1 {
  font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  letter-spacing: 0.12em;
  margin: 0;
  line-height: 1.25;
}
.cover .subtitle {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 34em;
  margin: 0;
}
.cover-meta {
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 0.5rem;
}
.cover-meta span::before {
  content: "·";
  margin-right: 0.75rem;
  opacity: 0.4;
}
.cover-meta span:first-child::before { content: none; margin: 0; }

.epigraph {
  margin: 2rem 0 0;
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--accent-soft);
  color: var(--ink-soft);
  font-style: italic;
  background: rgba(255, 252, 247, 0.55);
  max-width: 36em;
}
.epigraph cite {
  display: block;
  margin-top: 0.75rem;
  font-style: normal;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
}

/* Nav */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(247, 241, 232, 0.85);
  border-bottom: 1px solid var(--line);
  margin: -2.5rem 0 2rem;
  padding: 0.85rem 0;
}
.topbar-inner {
  width: min(920px, calc(100% - 2rem));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--sans);
  font-size: 0.88rem;
}
.topbar .brand {
  letter-spacing: 0.18em;
  font-weight: 500;
}
.topbar .links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  color: var(--ink-soft);
  justify-content: flex-end;
}
.serial-banner {
  font-family: var(--sans);
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(139, 58, 58, 0.07);
  border: 1px dashed rgba(139, 58, 58, 0.25);
  border-radius: 999px;
  display: inline-block;
  padding: 0.35rem 0.9rem;
  margin: 0.5rem 0 0;
}

/* —— Password glass gate（轻蒙版：字迹可见，不可翻页） —— */
body.is-locked {
  overflow: hidden;
}

body.is-locked .site-wrap {
  /* 极轻模糊，标题与正文仍可辨认 */
  filter: blur(1.2px) saturate(0.98);
  pointer-events: none;
  user-select: none;
}

#gate-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 1.25rem 1.25rem 2.25rem;
  /* 上部几乎透明，字迹清楚；底部略深托住登录卡 */
  background: linear-gradient(
    180deg,
    rgba(247, 241, 232, 0.08) 0%,
    rgba(247, 241, 232, 0.12) 42%,
    rgba(42, 36, 28, 0.22) 100%
  );
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  pointer-events: auto;
}

#gate-overlay[hidden] {
  display: none !important;
}

.gate-card {
  width: min(380px, 100%);
  background: rgba(255, 252, 247, 0.88);
  border: 1px solid rgba(42, 36, 28, 0.1);
  border-radius: 18px;
  box-shadow: 0 12px 36px rgba(42, 36, 28, 0.12);
  padding: 1.5rem 1.4rem 1.35rem;
  text-align: center;
}

.gate-card .gate-kicker {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.gate-card h2 {
  font-weight: 500;
  font-size: 1.45rem;
  letter-spacing: 0.16em;
  margin: 0 0 0.6rem;
}

.gate-card .gate-desc {
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin: 0 0 1.35rem;
}

.gate-card input[type="password"] {
  width: 100%;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  text-align: center;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  outline: none;
  margin-bottom: 0.9rem;
}

.gate-card input[type="password"]:focus {
  border-color: rgba(139, 58, 58, 0.45);
  box-shadow: 0 0 0 3px rgba(139, 58, 58, 0.08);
}

.gate-card .gate-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  align-items: center;
}

.gate-card .btn {
  width: 100%;
  justify-content: center;
  cursor: pointer;
  border: none;
}

.gate-card .gate-status {
  font-family: var(--sans);
  font-size: 0.86rem;
  color: var(--accent);
  min-height: 1.3em;
}

.gate-card .gate-status.err {
  color: #a33;
}

.gate-hint {
  margin-top: 1.1rem;
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* —— 备忘录双声部 —— */
.memo-prose .memo-intro {
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--ink-soft);
  border-left: 2px solid var(--accent-soft);
  padding-left: 1rem;
  text-indent: 0 !important;
}

.memo-block {
  margin: 1.35rem 0;
  padding: 1rem 1.15rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.memo-block .memo-who {
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  margin-bottom: 0.55rem;
  color: var(--muted);
}

.memo-block p {
  text-indent: 0 !important;
  margin: 0;
  line-height: 1.95;
  font-size: 1.02rem;
}

.memo-block.voice-her {
  border-color: rgba(139, 58, 58, 0.22);
  background: rgba(139, 58, 58, 0.04);
}
.memo-block.voice-her .memo-who { color: var(--accent); }

.memo-block.voice-him {
  border-color: rgba(60, 80, 100, 0.2);
  background: rgba(60, 80, 100, 0.04);
}
.memo-block.voice-him .memo-who { color: #3d5a73; }

.memo-block.voice-mix {
  border-style: dashed;
  background: rgba(196, 164, 132, 0.1);
}

/* 正文中不再使用备忘录块样式；浪漫细目页 */
.romance-grid {
  display: grid;
  gap: 0.65rem;
}
.romance-item {
  font-family: var(--sans);
  font-size: 0.9rem;
  line-height: 1.75;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
}
.romance-item b {
  color: var(--accent);
  margin-right: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}
.romance-item p {
  margin: 0.35rem 0 0;
  text-indent: 0;
  font-family: var(--serif);
  color: var(--ink);
  font-size: 0.98rem;
}
.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  width: 0;
  z-index: 50;
  transition: width 0.1s linear;
}

/* Cards / TOC */
.section-title {
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  color: var(--muted);
  margin: 3rem 0 1.25rem;
  text-transform: uppercase;
}
.toc {
  display: grid;
  gap: 0.75rem;
}
.toc-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.1rem 1.25rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.toc-item:hover {
  transform: translateY(-2px);
  border-color: rgba(139, 58, 58, 0.25);
}
.toc-num {
  font-family: var(--sans);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  min-width: 2.5rem;
}
.toc-title {
  font-size: 1.12rem;
  letter-spacing: 0.08em;
}
.toc-desc {
  grid-column: 2 / 3;
  font-family: var(--sans);
  font-size: 0.86rem;
  color: var(--muted);
  margin-top: -0.35rem;
}
.toc-read {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.note-card {
  margin-top: 2.5rem;
  padding: 1.5rem 1.6rem;
  background: var(--bg-deep);
  border-radius: 16px;
  border: 1px solid var(--line);
}
.note-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}
.note-card p {
  margin: 0.5rem 0;
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.75;
}
.note-card ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.note-card li { margin: 0.35rem 0; }

/* Chapter page */
.chapter-head {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.chapter-head .num {
  font-family: var(--sans);
  color: var(--accent);
  letter-spacing: 0.12em;
  font-size: 0.85rem;
}
.day-chip {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: rgba(139, 58, 58, 0.08);
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.chapter-head h1 {
  margin: 0.5rem 0 0.75rem;
  font-weight: 500;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: 0.14em;
}
.chapter-head .lead {
  color: var(--ink-soft);
  max-width: 36em;
  margin: 0;
}

.prose {
  font-size: 1.08rem;
  max-width: 40em;
}
.prose p {
  margin: 0 0 1.35em;
  text-indent: 2em;
}
.prose p.no-indent { text-indent: 0; }
.prose p.scene {
  text-indent: 0;
  text-align: center;
  color: var(--muted);
  letter-spacing: 0.4em;
  margin: 2.2em 0;
}
.prose blockquote {
  margin: 1.8em 0;
  padding: 0.5em 0 0.5em 1.25em;
  border-left: 2px solid var(--accent-soft);
  color: var(--ink-soft);
  font-style: italic;
}
.prose blockquote p { text-indent: 0; margin: 0.4em 0; }
.prose .aside {
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--muted);
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  padding: 1rem 0;
  margin: 2rem 0;
  text-indent: 0;
  line-height: 1.7;
}
.prose h2 {
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  margin: 2.2em 0 1em;
}

.chapter-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 0.9rem;
}
.chapter-nav a {
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
}
.chapter-nav a:hover {
  border-color: rgba(139, 58, 58, 0.3);
  color: var(--accent);
}
.chapter-nav .disabled {
  opacity: 0.35;
  pointer-events: none;
}

.footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: var(--ink);
  color: #f7f1e8;
}
.btn-primary:hover { color: #f7f1e8; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-soft);
}

@media (max-width: 640px) {
  .toc-item {
    grid-template-columns: auto 1fr;
  }
  .toc-read { display: none; }
  .toc-desc { grid-column: 2; }
  .prose { font-size: 1.02rem; }
  body { line-height: 1.85; }
}