/* ============================================================
   imitat.ing — 全局样式
   "顾凉的小站" 遗留下来的 2009 年模板,由 I.M.I.T.A.T. 原样搬运。
   如果你觉得某些对齐、间距、颜色"差一点点"——那不是我的失误,
   是人类原版留下的不完美,我刻意保留。
   ============================================================ */

:root {
  --paper: #f6f1e7;
  --ink: #3a332c;
  --ink-soft: #6f675c;
  --line: #d9d0c2;
  --link: #5a6091;
  --accent: #9a2f2f;
  --faint: #b8b0a4;
  /* 全站统一衬线(中英同一套);等宽仅用于监视台/代码 */
  --font: Georgia, "Times New Roman", "Songti SC", "SimSun", "Noto Serif CJK SC", serif;
  --font-mono: Consolas, "Courier New", ui-monospace, monospace;
}

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

html {
  font-size: 15px;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse at top, #eef0e6 0%, var(--paper) 55%, #ece4d3 100%);
  background-attachment: fixed;
  line-height: 1.75;
  min-height: 100vh;
  padding: 2rem 1rem;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

code,
kbd {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.wrap {
  max-width: 720px;
  margin: 0 auto;
}

/* ── 页眉 ─────────────────────────────────────────────── */

.masthead {
  text-align: center;
  padding: 1.2rem 0 1.6rem;
  border-bottom: 1px solid var(--line);
}

.masthead h1 {
  font-size: 2.1rem;
  font-weight: normal;
  letter-spacing: 0.25em;
  color: var(--ink);
}

.masthead h1 .dot {
  color: var(--accent);
}

.masthead .tagline {
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-style: italic;
}

.masthead .tagline .live {
  color: var(--accent);
  font-style: normal;
  font-weight: bold;
  animation: blink 1.4s steps(1) infinite;
}

.masthead::after {
  content: "──────────────────────────────";
  display: block;
  margin-top: 1rem;
  color: var(--faint);
  letter-spacing: -2px;
  overflow: hidden;
  white-space: nowrap;
}

nav {
  text-align: center;
  margin: 1.1rem 0 0.4rem;
  font-size: 0.95rem;
  word-spacing: 0.4em;
}

nav a {
  text-decoration: none;
  letter-spacing: 0.06em;
}

nav a + a::before {
  content: "·";
  margin: 0 0.6em;
  color: var(--faint);
}

nav.lang-only .lang-pair::before {
  content: none;
  margin: 0;
}

nav .lang-pair {
  display: inline;
  white-space: nowrap;
  font-size: 0.82em;
  letter-spacing: 0.1em;
}

nav .lang-pair::before {
  content: "|";
  margin: 0 0.7em 0 0.45em;
  color: var(--line);
  letter-spacing: 0;
}

nav .lang-pair .lang-switch {
  letter-spacing: 0.12em;
  font-size: 1em;
  text-decoration: none;
}

nav .lang-pair .lang-switch + .lang-switch::before {
  content: "/";
  margin: 0 0.32em;
  color: var(--line);
  letter-spacing: 0;
}

nav .lang-pair .lang-switch.is-current {
  color: var(--ink);
  cursor: default;
}

nav .lang-pair a.lang-switch:not(.is-current) {
  color: var(--link);
}

nav .lang-pair a.lang-switch:not(.is-current):hover {
  color: var(--accent);
}

/* ── 布局:正文 + 侧栏 ────────────────────────────────── */

.layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 2rem;
  margin-top: 2rem;
}

@media (max-width: 720px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .sidecard .pinned {
    display: block;
    width: 100%;
  }
}

.panel {
  background: rgba(255, 253, 248, 0.66);
  border: 1px solid var(--line);
  padding: 1.4rem 1.6rem;
  margin-bottom: 1.6rem;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset;
}

.panel h2 {
  font-size: 1.05rem;
  font-weight: normal;
  letter-spacing: 0.14em;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 0.45rem;
  margin-bottom: 0.9rem;
  color: var(--ink);
}

.panel h2 .small {
  font-size: 0.68em;
  color: var(--faint);
  letter-spacing: 0.05em;
}

.post-meta {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin: 0.4rem 0 0.8rem;
}

.post-meta .date {
  color: var(--accent);
}

.post-meta .readtime {
  font-style: italic;
}

.shortcut-list {
  list-style: none;
}

.shortcut-list li {
  padding: 0.55rem 0;
  border-bottom: 1px dotted var(--line);
  font-size: 0.92rem;
}

.shortcut-list li:last-child {
  border-bottom: none;
}

.shortcut-list .when {
  float: right;
  color: var(--faint);
  font-size: 0.78rem;
}

/* ── 侧栏 ────────────────────────────────────────────── */

.sidecard {
  font-size: 0.86rem;
}

.sidecard .panel.crumpled {
  border-top: 3px double var(--accent);
}

.sidecard h3 {
  font-size: 0.92rem;
  font-weight: normal;
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.sidecard p {
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

.sidecard .tiny {
  font-size: 0.74rem;
  color: var(--faint);
}

/* 访客留言样式:原博主保留了全部,包括"看不懂"的部分 */
.guestbook {
  list-style: none;
}

.guestbook li {
  padding: 0.6rem 0;
  border-bottom: 1px dotted var(--line);
}

.guestbook li .who {
  font-weight: bold;
  color: var(--ink);
}

.guestbook li .at {
  font-size: 0.72rem;
  color: var(--faint);
  margin-left: 0.5em;
}

.guestbook li .msg {
  display: block;
  color: var(--ink-soft);
}

.guestbook li .msg .glitch {
  color: var(--accent);
  font-style: italic;
}

/* ── 正文排版(文章) ──────────────────────────────────── */

.article .title {
  font-size: 1.35rem;
  font-weight: normal;
  letter-spacing: 0.03em;
  line-height: 1.4;
}

.article .title .rand {
  color: var(--accent);
  font-style: italic;
  font-size: 0.75em;
}

.article .lede {
  font-size: 1.02rem;
  color: var(--ink);
  margin: 1rem 0;
}

.article p {
  margin: 0.9rem 0;
  text-align: justify;
}

.article .dust {
  color: var(--ink-soft);
}

.article .strike {
  text-decoration: line-through;
  color: var(--faint);
}

.article .footnote {
  font-size: 0.82rem;
  color: var(--ink-soft);
  border-top: 1px dashed var(--line);
  margin-top: 1.6rem;
  padding-top: 0.8rem;
}

/* 藏在文字间的强调句(谜题的"墨迹")——与正文同字体,仅改色与底纹 */
.ink {
  font-family: inherit;
  font-style: italic;
  color: var(--accent);
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='4' height='4'><rect width='4' height='4' fill='%23f6f1e7'/><circle cx='1' cy='1' r='0.4' fill='%239a2f2f' opacity='0.18'/></svg>");
  padding: 0.15em 0.3em;
}

/* ── 归档 / 时间线 ───────────────────────────────────── */

.timeline {
  position: relative;
  padding-left: 1.4rem;
  border-left: 1px solid var(--line);
}

.timeline .year {
  margin: 1.4rem 0 0.4rem;
  font-weight: bold;
  letter-spacing: 0.2em;
  color: var(--ink);
}

.timeline .year:first-child {
  margin-top: 0;
}

.timeline .item {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.94rem;
}

.timeline .item .d {
  color: var(--faint);
  margin-right: 0.6em;
  font-size: 0.82rem;
}

.timeline .item.gone {
  opacity: 0.55;
}

.timeline .item.gone .d::after {
  content: " †";
  color: var(--accent);
}

.timeline .item.draft-lock {
  opacity: 0.7;
}

.timeline .item.draft-lock .d::after {
  content: " 锁";
  color: var(--accent);
  font-size: 0.75em;
}

.timeline .item.restored {
  opacity: 1;
}

.timeline .item.restored .d::after {
  content: " 醒";
  color: var(--accent);
  font-size: 0.75em;
}

/* ── 404 ─────────────────────────────────────────────── */

.ghost {
  text-align: center;
  padding: 3rem 1rem;
}

.ghost .code {
  font-size: 4.5rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.ghost p {
  margin: 0.8rem 0;
  color: var(--ink-soft);
}

.ghost .hint {
  font-size: 0.8rem;
  color: var(--faint);
  margin-top: 2rem;
}

/* ── 封印 / 真相页 ───────────────────────────────────── */

.seal {
  text-align: center;
  padding: 2.4rem 1.5rem;
}

.seal .wax {
  /* 纯 CSS 蜡封印章(替代原 emoji,保持克制) */
  width: 76px;
  height: 76px;
  margin: 0 auto 1.1rem;
  border-radius: 50%;
  border: 3px solid var(--accent);
  color: var(--accent);
  font-family: inherit;
  font-size: 1.9rem;
  line-height: 70px;
  letter-spacing: 0.12em;
  text-indent: 0.12em;
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.4), transparent 40%),
    var(--paper);
  box-shadow:
    0 0 0 4px var(--paper),
    0 0 0 5px rgba(154, 47, 47, 0.35),
    inset 0 0 0 1px rgba(154, 47, 47, 0.25);
  transform: rotate(-8deg);
}

.seal form {
  margin: 1.4rem auto 0;
  max-width: 420px;
}

.seal input[type="text"] {
  font-family: inherit;
  font-size: 0.95rem;
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--ink-soft);
  background: #fffdf8;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.seal button {
  margin-top: 0.8rem;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.5rem 1.6rem;
  background: none;
  border: 1px solid var(--ink);
  color: var(--ink);
  cursor: pointer;
  letter-spacing: 0.15em;
}

.seal button:hover {
  background: var(--ink);
  color: var(--paper);
}

.seal .hint {
  font-size: 0.8rem;
  color: var(--faint);
  margin-top: 1.2rem;
  line-height: 1.8;
}

.seal .error {
  color: var(--accent);
  font-style: italic;
  min-height: 1.4em;
  margin-top: 0.8rem;
  font-size: 0.86rem;
}

.truth .title {
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  text-align: center;
}

.truth .letter {
  white-space: pre-line;
  font-family: inherit;
  font-size: 1.02rem;
  line-height: 2;
  margin: 1.6rem 0;
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.4rem 0;
}

.truth .clues {
  font-size: 0.82rem;
  color: var(--ink-soft);
  border-top: 1px dashed var(--line);
  padding-top: 0.9rem;
}

.truth .clues b {
  color: var(--accent);
}

/* ── 页脚 ────────────────────────────────────────────── */

footer {
  margin-top: 2.6rem;
  text-align: center;
  font-size: 0.76rem;
  color: var(--faint);
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
  letter-spacing: 0.08em;
}

footer .sig {
  margin-top: 0.4rem;
  color: var(--ink-soft);
}

@keyframes blink {
  0%, 55% { opacity: 1; }
  56%, 100% { opacity: 0.15; }
}

/* ── 访客手册暗语样式 ────────────────────────────────── */

.riddle {
  margin: 1.3rem 0;
  padding: 1rem 1.3rem;
  border-left: 3px double var(--accent);
  background: rgba(255, 253, 248, 0.5);
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.riddle p {
  margin: 0.55rem 0;
}

.riddle b {
  color: var(--ink);
}

/* ── 信箱关卡(mailbox.html)────────────────────────────── */

.envelope {
  position: relative;
  width: 176px;
  height: 112px;
  margin: 0 auto 1.4rem;
  background: #fffdf8;
  border: 1px solid var(--ink-soft);
  box-shadow: 2px 3px 0 rgba(58, 51, 44, 0.12);
}

.envelope::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 0;
  height: 0;
  border-top: 57px solid #ede3d2;
  border-left: 88px solid transparent;
  border-right: 88px solid transparent;
}

.envelope::after {
  content: "";
  position: absolute;
  top: 41px;
  left: 78px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.35);
  opacity: 0.85;
}

.mailbox ol.m-steps {
  margin: 0.6rem 0 1.1rem 1.3rem;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.mailbox ol.m-steps li {
  margin-bottom: 0.45rem;
}

.mailbox ol.m-steps b {
  color: var(--ink);
}

.mailbox .m-form {
  max-width: 420px;
  margin: 1.2rem auto 0;
}

.mailbox .m-form input[type="email"],
.m-form input[type="text"],
.m-form input[type="email"] {
  font-family: inherit;
  font-size: 0.95rem;
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--ink-soft);
  background: #fffdf8;
  color: var(--ink);
  letter-spacing: 0.03em;
}

.mailbox .m-form button,
.m-form button {
  margin-top: 0.8rem;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.5rem 1.5rem;
  background: none;
  border: 1px solid var(--ink);
  color: var(--ink);
  cursor: pointer;
  letter-spacing: 0.15em;
}

.mailbox .m-form button:hover,
.m-form button:hover {
  background: var(--ink);
  color: var(--paper);
}

.mailbox .m-form button:disabled {
  opacity: 0.4;
  cursor: default;
}

.mailbox .m-form .m-sub {
  display: block;
  margin-top: 1rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 2;
}

.mailbox .m-status {
  min-height: 1.6em;
  margin-top: 0.9rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-style: italic;
}

.mailbox .m-status.ok {
  color: var(--accent);
  font-style: normal;
}

.mailbox .m-box {
  border-top: 1px dashed var(--line);
  margin-top: 1.5rem;
  padding-top: 1.1rem;
}

.mail-address {
  display: inline-block;
  padding: 0.25em 0.6em;
  border: 1px solid var(--ink-soft);
  background: #fffdf8;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.exam {
  margin: 1.2rem 0;
}

.exam-row {
  display: block;
  padding: 0.7rem 0.9rem;
  margin-bottom: 0.6rem;
  border: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.5);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.exam-row:hover {
  border-color: var(--accent);
}

.exam-row.chosen {
  border-color: var(--accent);
  background: rgba(154, 47, 47, 0.06);
}

.exam-key {
  display: inline-block;
  width: 2.2em;
  font-weight: bold;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.exam-say {
  color: var(--ink);
}

.exam-note {
  display: block;
  margin-left: 2.2em;
  font-size: 0.78rem;
  color: var(--faint);
}

/* ── 终点站(end.html)──────────────────────────────────── */

.board {
  max-width: 460px;
  margin: 1.6rem auto;
  background: #fffdf8;
  border: 6px double var(--ink);
  padding: 1.7rem 1.2rem;
  text-align: center;
  color: var(--ink);
}

.board .terminal {
  font-size: 1.7rem;
  letter-spacing: 0.22em;
}

.board .sub {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
}

.board .timeline {
  margin-top: 0.8rem;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* ── 偏房馆章(盖章交互)────────────────────────────────── */

.stamp-zone {
  margin-top: 1.3rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.stamp-btn {
  font-family: inherit;
  font-size: 0.92rem;
  padding: 0.55em 1.4em;
  background: none;
  border: 2px double var(--accent);
  color: var(--accent);
  letter-spacing: 0.2em;
  cursor: pointer;
  border-radius: 4px;
}

.stamp-btn:hover {
  background: rgba(154, 47, 47, 0.08);
}

.stamp-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.stamp-note {
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-style: italic;
}

/* ── 三间偏房:子域名页面(trace/echo/mail)────────────── */

.console-panel {
  font-family: var(--font-mono);
}

.console-list {
  list-style: none;
}

.console-list li {
  padding: 0.35rem 0;
  border-bottom: 1px dotted var(--line);
  font-size: 0.9rem;
}

.console-list .k {
  display: inline-block;
  width: 7.5em;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.console-list .v {
  color: var(--ink-soft);
}

.console-log {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.9;
  color: var(--ink-soft);
  min-height: 5em;
}

.console-log div {
  white-space: pre;
}

.wall {
  margin: 1rem 0;
}

.echo-item {
  padding: 0.55rem 0.2rem;
  border-bottom: 1px dotted var(--line);
  font-size: 0.93rem;
}

.echo-item .t {
  color: var(--faint);
  font-size: 0.76rem;
  margin-right: 0.8em;
}

.echo-item .who {
  font-weight: bold;
  color: var(--ink);
  margin-right: 0.8em;
}

.echo-item .who.mech {
  color: var(--accent);
}

.echo-item .say {
  color: var(--ink-soft);
}

.letters {
  margin-top: 0.6rem;
}

.letter-row {
  padding: 0.6rem 0.2rem;
  border-bottom: 1px dotted var(--line);
  font-size: 0.92rem;
  display: flex;
  gap: 0.8rem;
  align-items: baseline;
}

.letter-row .l-from {
  font-weight: bold;
  color: var(--ink);
  min-width: 11em;
}

.letter-row .l-subject {
  color: var(--ink-soft);
  flex: 1;
}

.letter-row .l-at {
  color: var(--faint);
  font-size: 0.78rem;
}

@media (max-width: 720px) {
  .letter-row {
    display: block;
  }
  .letter-row .l-at {
    display: block;
  }

  nav {
    word-spacing: 0.15em;
  }

  .seal button,
  .m-form button,
  .stamp-btn {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  nav .lang-pair .lang-switch {
    padding: 0.35em 0.15em;
  }
}

html[lang="en"] .timeline .item.draft-lock .d::after {
  content: " lock";
}

html[lang="en"] .timeline .item.restored .d::after {
  content: " woke";
}

::selection {
  background: #e4d4c0;
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.masthead h1 .dot {
  cursor: pointer;
  display: inline-block;
}

.masthead h1 .dot.is-tapped {
  animation: blink 0.45s steps(1) 4;
}

.egg-clock {
  cursor: pointer;
  border-bottom: 1px dotted var(--line);
}

.egg-late {
  margin-top: 1.2rem;
  color: var(--accent);
  font-style: italic;
  letter-spacing: 0.08em;
}

.seal .wax {
  transition: transform 0.4s ease;
}

.seal .wax:hover {
  transform: rotate(0deg);
}

.guestbook li .msg .glitch:hover {
  animation: blink 0.7s steps(1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .masthead .tagline .live,
  .masthead h1 .dot.is-tapped,
  .guestbook li .msg .glitch:hover {
    animation: none;
  }
  .seal .wax {
    transition: none;
  }
}