/* 成人百科索引页 ------------------------------------------- */

:root {
  --ground:   #241B2A;
  --surface:  #2E2334;
  --paper:    #EDE4DC;
  --muted:    #A99BAE;
  --rule:     #4A3A52;
  --brass:    #C8A24A;
  --rose:     #C97B86;

  /* 主入口单独给色：它是全页唯一的重音，要从底色里立起来 */
  --door-bg:       #352741;
  --door-bg-hover: #42304E;

  --serif: "Songti SC", "SimSun", "Noto Serif SC", "Source Han Serif SC", serif;
  --sans:  "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;

  --measure: 36rem;
}

@media (prefers-color-scheme: light) {
  :root {
    --ground:  #EFE8E0;
    --surface: #E4DAD0;
    --paper:   #2A2030;
    --muted:   #6C5E73;
    --rule:    #C3B4B9;
    --brass:   #8A6A1E;
    --rose:    #9B4A57;

    --door-bg:       #E3D7C9;
    --door-bg-hover: #DACBB8;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; }

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

/* 页面容器 ------------------------------------------------- */

.page {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2.5rem;
}

.page[hidden] { display: none; }

.page[data-ready="1"] { animation: rise .5s ease-out both; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* 报头 ----------------------------------------------------- */

.masthead { margin-bottom: 3rem; }

.wordmark {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 11vw, 3.75rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: .06em;
  margin: 0;
}

.subline {
  font-size: .8125rem;
  color: var(--muted);
  letter-spacing: .3em;
  margin: .9rem 0 0;
}

/* 主站入口（全页唯一的重音） ------------------------------- */

.gateway {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  margin-bottom: 3.25rem;
}

.status {
  display: flex;
  align-items: center;
  gap: .625rem;
  font-size: .875rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.dot {
  flex: none;
  width: .5rem; height: .5rem;
  border-radius: 50%;
  background: var(--muted);
}

.dot[data-state="checking"] { animation: breathe 1.4s ease-in-out infinite; }
.dot[data-state="open"]     { background: var(--brass); box-shadow: 0 0 0 4px rgba(200,162,74,.16); }
.dot[data-state="unsure"]   { background: var(--rose); }

@keyframes breathe {
  0%, 100% { opacity: .3; }
  50%      { opacity: 1; }
}

.door {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.5rem 1.5rem;
  background: var(--door-bg);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--brass);
  text-decoration: none;
  transition: background .18s ease, border-color .18s ease;
}

.door:hover, .door:focus-visible {
  background: var(--door-bg-hover);
  border-color: var(--brass);
}

.door-label {
  font-family: var(--serif);
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--brass);
}

.door-host {
  font-size: .8125rem;
  color: var(--muted);
  word-break: break-all;
}

.status-hint {
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--muted);
  margin: .875rem 0 0;
}

/* 索引区块 ------------------------------------------------- */

.index-block { margin-bottom: 3rem; }

.block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: .625rem;
  margin-bottom: .5rem;
}

.block-head h2 {
  font-family: var(--serif);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: .12em;
  margin: 0;
}

.count {
  font-size: .75rem;
  color: var(--muted);
  letter-spacing: .04em;
}

/* 目录索引行 ----------------------------------------------- */

.entry {
  display: block;
  padding: .875rem .25rem;
  /* 第一行是回退：没有 color-mix 的引擎（Chrome 111 / Safari 16.2 /
     Firefox 113 以前）会整条丢掉简写，分隔线就全没了 */
  border-bottom: 1px solid var(--rule);
  border-bottom-color: color-mix(in srgb, var(--rule) 45%, transparent);
  text-decoration: none;
}

.entry:last-child { border-bottom: 0; }

.entry-line {
  display: flex;
  align-items: baseline;
  gap: .5rem;
}

.entry-name {
  font-size: 1.0625rem;
  letter-spacing: .02em;
}

.entry-leader {
  flex: 1 1 auto;
  min-width: 1.5rem;
  border-bottom: 1px dotted var(--rule);
  transform: translateY(-.32em);
}

.entry-go {
  flex: none;
  font-size: .8125rem;
  color: var(--muted);
  transition: color .18s ease;
}

.entry-note {
  display: block;
  font-size: .8125rem;
  color: var(--muted);
  margin-top: .25rem;
  max-width: 30rem;
}

.entry:hover .entry-name,
.entry:focus-visible .entry-name { color: var(--brass); }

.entry:hover .entry-go,
.entry:focus-visible .entry-go { color: var(--brass); }

.entry:hover .entry-leader,
.entry:focus-visible .entry-leader { border-bottom-color: var(--brass); }

/* 备用入口 ------------------------------------------------- */

.mirrors {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding-top: .875rem;
}

.mirror {
  padding: .5rem .875rem;
  border: 1px solid var(--rule);
  font-size: .875rem;
  text-decoration: none;
  transition: border-color .18s ease, color .18s ease;
}

.mirror:hover, .mirror:focus-visible {
  border-color: var(--brass);
  color: var(--brass);
}

/* 页脚 ----------------------------------------------------- */

.footer {
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
  font-size: .75rem;
  color: var(--muted);
}

.footer p { margin: 0 0 .375rem; }

/* 年龄提示是合规声明，不该和普通小字一样灰 */
.age {
  color: var(--paper);
  letter-spacing: .04em;
}

/* 年龄确认 ------------------------------------------------- */

.gate {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--ground);
}

.gate[hidden] { display: none; }

.gate-panel {
  max-width: 24rem;
  border-top: 3px solid var(--brass);
  background: var(--surface);
  padding: 1.75rem 1.625rem 1.5rem;
}

.gate-panel h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: .06em;
  margin: 0 0 .75rem;
}

.gate-panel p {
  font-size: .9375rem;
  margin: 0 0 1.25rem;
}

.gate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .625rem;
  margin-bottom: 1rem;
}

.btn-primary,
.btn-quiet {
  font-family: inherit;
  font-size: .9375rem;
  padding: .625rem 1.125rem;
  border: 1px solid var(--brass);
  cursor: pointer;
  transition: background .18s ease, color .18s ease;
}

.btn-primary {
  background: var(--brass);
  color: var(--ground);
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--brass);
  background: color-mix(in srgb, var(--brass) 86%, var(--paper));
  opacity: .88;
}

.btn-quiet {
  background: transparent;
  color: var(--muted);
  border-color: var(--rule);
}

.btn-quiet:hover { color: var(--paper); border-color: var(--paper); }

.gate-fine {
  font-size: .75rem;
  color: var(--muted);
  margin: 0;
}

/* 偏好设置 ------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

@media (max-width: 26rem) {
  .page { padding-top: 2.5rem; }
  .masthead { margin-bottom: 2.25rem; }
  .door { padding: 1rem 1.125rem; }
}