/* Aion page. Ink ground, paper slips, one seal red — taken from the ONON client. Mincho for headings. */
:root {
  --ink: #171310; --ink2: #201b16; --ink3: #120f0c; --paper: #efe5d2; --paper-ink: #1c1712; --text: #ece3d3; --soft: #b3a892; --rule: #3e352b; --seal: #c8412f; --slip-edge: transparent;
  --mincho: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", "Noto Serif CJK JP", serif;
  --gothic: "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", "Noto Sans CJK JP", Meiryo, sans-serif;
}
/* Light theme. theme.js sets data-theme; without scripts the page follows the system. */
:root[data-theme="light"] { --ink: #efe6d4; --ink2: #e5dac4; --ink3: #f6efe1; --paper: #fbf7ec; --paper-ink: #1c1712; --text: #1c1712; --soft: #655a49; --rule: #cbbd9f; --seal: #b5382a; --slip-edge: #cbbd9f; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) { --ink: #efe6d4; --ink2: #e5dac4; --ink3: #f6efe1; --paper: #fbf7ec; --paper-ink: #1c1712; --text: #1c1712; --soft: #655a49; --rule: #cbbd9f; --seal: #b5382a; --slip-edge: #cbbd9f; }
}
/* The ONON window keeps its own ink colours in either page theme. */
.onon { --ink: #171310; --ink2: #201b16; --ink3: #120f0c; --paper: #efe5d2; --paper-ink: #1c1712; --text: #ece3d3; --soft: #b3a892; --rule: #3e352b; --seal: #c8412f; --slip-edge: transparent; color: var(--text); }
:root:lang(zh-CN) { --mincho: "Songti SC", "Noto Serif SC", "Noto Serif CJK SC", SimSun, "Yu Mincho", serif; --gothic: "Microsoft YaHei UI", "PingFang SC", "Noto Sans SC", "Noto Sans CJK SC", "Yu Gothic UI", sans-serif; }
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ink); color: var(--text); font-family: var(--gothic); font-size: 16.5px; line-height: 1.95; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--seal); outline-offset: 3px; }
[hidden] { display: none !important; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: var(--paper); color: var(--paper-ink); padding: 6px 12px; z-index: 9; }

.top, main, .foot { width: min(1060px, 100% - 48px); margin-inline: auto; }
.top { display: flex; align-items: center; gap: 26px; padding: 22px 0; }
.name { font-family: var(--mincho); font-weight: 700; font-size: 1.6rem; text-decoration: none; letter-spacing: .05em; }
.top nav { display: flex; gap: 22px; margin-left: auto; font-size: .88rem; }
.top nav a { text-decoration: none; color: var(--soft); }
.top nav a:hover { color: var(--text); }

.hero { padding: 76px 0 50px; }
.lead, .lead2 { max-width: 43em; }
.stagemark { display: inline-block; border: 1px solid var(--seal); color: var(--seal); font-size: .78rem; padding: 0 10px; margin-bottom: 22px; }
h1 { font-family: var(--mincho); font-weight: 700; font-size: clamp(2.1rem, 5.4vw, 3.7rem); line-height: 1.45; letter-spacing: .04em; text-wrap: balance; }
.lead { margin-top: 26px; font-size: 1.08rem; }
.lead2 { margin-top: 14px; color: var(--soft); }

.tabs { display: flex; flex-wrap: wrap; gap: 28px; border-bottom: 1px solid var(--rule); margin-bottom: 18px; }
.tabs button { padding: 8px 0; color: var(--soft); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); font-weight: 700; border-bottom-color: var(--seal); }
.onon { background: var(--ink3); border: 1px solid var(--rule); font-size: .84rem; line-height: 1.6; }
.obar { display: flex; align-items: baseline; gap: 22px; padding: 16px 30px; border-bottom: 1px solid var(--rule); }
.obar b { font-family: var(--mincho); font-size: 1.5rem; letter-spacing: .04em; }
.mono { font-family: Consolas, "Cascadia Mono", monospace; }
.ogrid { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 26px; padding: 26px; }
.talk span { font-family: var(--mincho); font-size: 2rem; font-weight: 700; }
.talk i { font-family: "Segoe Script", "Brush Script MT", cursive; color: var(--seal); font-size: 1.3rem; margin-left: 8px; }
.cur { margin: 14px -4px 0 0; background: var(--paper); color: var(--paper-ink); border-left: 5px solid var(--seal); padding: 10px 14px; font-family: var(--mincho); font-weight: 700; font-size: 1.05rem; }
.cur small { display: block; font-family: var(--gothic); font-weight: 400; font-size: .74rem; color: #5a4f41; }
.cap { color: var(--soft); font-size: .76rem; margin-top: 16px; }
.cap.strong { color: var(--text); font-family: var(--mincho); font-size: 1rem; margin-top: 2px; }
.periods { margin-top: 10px; border-left: 1px solid var(--rule); }
.periods li { padding: 5px 14px; font-family: var(--mincho); font-size: 1rem; color: var(--soft); }
.periods li.on { color: var(--text); border-left: 2px solid var(--seal); margin-left: -1px; }
.periods small { display: block; font-family: var(--gothic); font-size: .72rem; color: var(--seal); }
.poster { width: 170px; background: var(--paper); padding: 7px 7px 4px; transform: rotate(-3deg); margin: 22px 0 6px 6px; box-shadow: 0 12px 28px rgba(0, 0, 0, .5); }
.poster figcaption { display: flex; justify-content: space-between; align-items: baseline; color: var(--paper-ink); font-family: var(--mincho); font-weight: 700; font-size: 1.1rem; }
.poster small { font-family: var(--gothic); font-size: .56rem; font-weight: 400; border-left: 2px solid var(--seal); padding-left: 5px; }
.pane { background: var(--ink2); border: 1px solid var(--rule); display: flex; flex-direction: column; min-height: 520px; min-width: 0; }
.mid { flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; gap: 16px; padding: 30px; color: var(--soft); }
.big { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.4rem, 3vw, 2rem); color: var(--text); }
.msgs { flex: 1; display: flex; flex-direction: column; gap: 16px; padding: 30px; }
.me, .it { max-width: 80%; padding: 12px 16px; font-size: .95rem; line-height: 1.8; }
.me { align-self: flex-end; border: 1px solid var(--seal); }
.it { background: var(--paper); color: var(--paper-ink); }
.note { align-self: center; color: var(--soft); font-size: .8rem; }
.conn { padding: 10px 30px; color: var(--soft); border-bottom: 1px solid var(--rule); }
.input { display: flex; gap: 14px; padding: 14px 30px 8px; }
.input span { flex: 1; min-height: 76px; background: var(--ink3); border: 1px solid var(--rule); border-bottom: 2px solid var(--seal); padding: 14px 18px; color: var(--soft); font-size: .95rem; }
.input b { align-self: center; background: var(--seal); color: #fff5ec; font-family: var(--mincho); font-size: 1.15rem; padding: 14px 30px; box-shadow: 4px 4px 0 rgba(0, 0, 0, .35); }
.foot2 { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding: 4px 30px 16px; color: var(--soft); font-size: .74rem; }
.fine { margin-top: 12px; color: var(--soft); font-size: .8rem; line-height: 1.7; }

.sec { padding-top: 110px; }
h2 { font-family: var(--mincho); font-size: clamp(1.55rem, 3.4vw, 2.2rem); line-height: 1.55; font-weight: 700; letter-spacing: .03em; max-width: 22em; }
.sub { color: var(--soft); margin-top: 14px; max-width: 43em; }
.tagline { margin-top: 26px; padding-left: 14px; border-left: 2px solid var(--seal); color: var(--soft); font-size: .86rem; }
.stances { margin-top: 36px; }
.stances article { display: grid; grid-template-columns: 12em minmax(0, 1fr); gap: 30px; padding: 22px 0; border-top: 1px solid var(--rule); }
.stances article:last-child { border-bottom: 1px solid var(--rule); }
.stances h3 { font-family: var(--mincho); font-size: 1.3rem; line-height: 1.5; }
.stances p { color: var(--soft); max-width: 40em; }
.ledgers { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 30px; margin-top: 36px; align-items: start; }
.paper { background: var(--paper); color: var(--paper-ink); padding: 22px 24px 24px; border: 1px solid var(--slip-edge); }
.paper + .paper { transform: translateY(22px) rotate(.6deg); }
.paper h3 { font-family: var(--mincho); font-size: 1.15rem; border-bottom: 1px solid #b7a98e; padding-bottom: 8px; margin-bottom: 6px; }
.paper li { display: grid; grid-template-columns: 6.2em minmax(0, 1fr); gap: 10px; padding: 8px 0; border-bottom: 1px dotted #b7a98e; font-size: .94rem; line-height: 1.7; }
.paper time { font-family: var(--mincho); font-weight: 700; }
.paper b { font-size: .78rem; border: 1px solid var(--paper-ink); text-align: center; align-self: start; padding: 0 4px; }
.paper b.off { border-color: var(--seal); color: var(--seal); }
.paper p { margin-top: 12px; font-size: .84rem; color: #5a4f41; line-height: 1.7; }
.chain { display: flex; flex-wrap: wrap; gap: 8px 0; margin-top: 60px; font-family: var(--mincho); font-size: 1.05rem; }
.chain li { padding: 4px 0; }
.chain li + li::before { content: ""; display: inline-block; width: 34px; height: 1px; background: var(--seal); vertical-align: middle; margin: 0 12px; }
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 44px; margin-top: 60px; }
.split h3 { font-family: var(--mincho); font-size: 1.15rem; margin-bottom: 6px; }
.split p { color: var(--soft); }
.notes { margin-top: 30px; max-width: 46em; }
.notes li { padding: 14px 0 14px 28px; border-bottom: 1px solid var(--rule); position: relative; }
.notes li::before { content: ""; position: absolute; left: 4px; top: 1.75em; width: 9px; height: 9px; background: var(--seal); transform: rotate(45deg); }
.stages { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 0; margin-top: 34px; border-top: 1px solid var(--text); }
.stages > div { padding: 20px 26px 6px 0; }
.stages > div + div { border-left: 1px solid var(--rule); padding-left: 26px; }
.stages h3 { font-family: var(--mincho); font-size: 1.15rem; margin-bottom: 8px; }
.stages > div + div h3, .stages > div + div li { color: var(--soft); }
.stages li { padding: 9px 0; border-top: 1px solid var(--rule); font-size: .92rem; line-height: 1.75; }
.faq { margin-top: 26px; max-width: 780px; }
.faq dt { font-family: var(--mincho); font-weight: 700; font-size: 1.15rem; padding-top: 22px; }
.faq dd { color: var(--soft); padding: 4px 0 22px; border-bottom: 1px solid var(--rule); }
.end p { margin-top: 16px; max-width: 43em; color: var(--soft); }
.foot { display: flex; justify-content: space-between; padding: 28px 0 46px; margin-top: 100px; border-top: 1px solid var(--rule); font-size: .82rem; color: var(--soft); }

@media (max-width: 900px) {
  .top nav { display: none; }
  .top { justify-content: space-between; gap: 10px; }
  .tabs { gap: 18px; font-size: .92rem; }
  .hero { padding: 36px 0 34px; }
  .ogrid { grid-template-columns: minmax(0, 1fr); padding: 16px; }
  .ogrid aside .periods, .ogrid aside .cap, .ogrid aside .mono, .poster { display: none; }
  .pane { min-height: 380px; }
  .obar { padding: 12px 16px; flex-wrap: wrap; gap: 4px 16px; }
  .input, .conn, .foot2 { padding-inline: 16px; }
  .input b { padding: 12px 18px; }
  .stances article { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .ledgers, .split, .stages { grid-template-columns: minmax(0, 1fr); }
  .paper + .paper { transform: none; }
  .stages > div + div { border-left: 0; padding-left: 0; border-top: 1px solid var(--text); }
  .chain li + li::before { width: 14px; margin: 0 6px; }
  .sec { padding-top: 72px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

h1, h2 { word-break: auto-phrase; }
.intro { padding: 80px 0; }

/* autoplay control */
.auto { margin-top: 12px; }
.auto button { font-size: .8rem; color: var(--soft); border-bottom: 1px solid var(--seal); padding: 2px 0; }
.auto button:hover { color: var(--text); }
.auto [aria-pressed="true"] .off, .auto [aria-pressed="false"] .on { display: none; }
.dots { display: none; }

/* Motion: a message is sent, the reply takes a moment, then arrives. Restarts whenever a screen is shown. */
@media (prefers-reduced-motion: no-preference) {
  @keyframes come { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
  @keyframes wait { 0% { opacity: 0; max-height: 30px; } 12%, 85% { opacity: 1; max-height: 30px; } 100% { opacity: 0; max-height: 0; margin-top: -16px; } }
  @keyframes blink { 50% { opacity: .25; } }
  @keyframes turn { 40% { transform: rotate(2deg) scale(1.03); } }
  .mid .big { animation: come .7s .1s both; }
  .mid p:not(.big) { animation: come .6s .7s both; }
  .mid p:last-child { animation-delay: 1s; }
  .msgs .me { animation: come .4s .3s both; }
  .dots { display: flex; gap: 6px; padding-left: 4px; overflow: hidden; animation: wait 1.7s .9s both; }
  .dots i { width: 7px; height: 7px; background: var(--paper); animation: blink .9s infinite; }
  .dots i:nth-child(2) { animation-delay: .15s; }
  .dots i:nth-child(3) { animation-delay: .3s; }
  .msgs .it { animation: come .5s 2.6s both; }
  .msgs .note { animation: come .5s 1.2s both; }
  [data-active="face"] .poster { animation: turn .8s 1.1s; }
}

.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* language and theme switches: one button each, showing what a click switches to */
.ctl { display: flex; gap: 8px; }
.sw { height: 32px; padding: 0 11px; border: 1px solid var(--rule); border-radius: 0; font-size: .8rem; color: var(--text); }
.sw:hover { border-color: currentColor; }
.sw > span { display: inline-flex; align-items: center; gap: 7px; height: 100%; }
.sw .flag { border: 1px solid var(--rule); }
html[data-lang="ja"] .to-ja, html[data-lang="zh"] .to-zh { display: none; }
:root[data-theme="light"] .to-light, :root:not([data-theme="light"]) .to-dark { display: none; }
html[data-bilingual="off"] [data-lang-toggle] { display: none; }