@font-face {
  font-family: "Future Letter Handwriting";
  src: url("assets/fonts/ZhiMangXing-Regular.ttf") format("truetype");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

:root {
  --paper: #f7f2e9;
  --paper-warm: #f3ecdf;
  --ink: #48483f;
  --ink-soft: #6f7066;
  --sage: #71806b;
  --blue: #718494;
  --apricot: #b88969;
  --line: rgba(72, 72, 63, 0.24);
  --content-width: min(34rem, 42vw);
  color-scheme: light;
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

a {
  color: inherit;
}

@media (pointer: fine) and (prefers-reduced-motion: no-preference) {
  body.has-custom-cursor,
  body.has-custom-cursor a,
  body.has-custom-cursor button {
    cursor: none;
  }
}

.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 150;
  pointer-events: none;
  opacity: 0;
  will-change: transform;
}

.cursor-dot {
  width: 29px;
  height: 7px;
  border: 1px solid rgba(91, 75, 51, 0.35);
  border-radius: 1px 3px 3px 1px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.38), transparent 45%),
    #c9a36f;
  filter: drop-shadow(1px 2px 1px rgba(72, 58, 40, 0.2));
  transform-origin: -8px 50%;
  transition: filter 220ms ease, opacity 250ms ease;
}

.cursor-dot::before,
.cursor-dot::after {
  position: absolute;
  top: -1px;
  height: 7px;
  content: "";
}

.cursor-dot::before {
  left: -9px;
  width: 9px;
  background: linear-gradient(90deg, #4d4a43 0 24%, #e1c49a 25% 100%);
  clip-path: polygon(0 50%, 100% 0, 100% 100%);
}

.cursor-dot::after {
  right: -6px;
  width: 6px;
  border-left: 1px solid rgba(91, 75, 51, 0.28);
  border-radius: 0 3px 3px 0;
  background: #b98279;
}

.cursor-ring {
  width: 23px;
  height: 23px;
  border: 1px dashed rgba(72, 72, 63, 0.3);
  border-radius: 47% 53% 45% 55%;
  box-shadow: 2px 1px 0 rgba(184, 137, 105, 0.1);
  transition:
    width 300ms ease,
    height 300ms ease,
    border-color 300ms ease,
    opacity 250ms ease;
}

body.cursor-is-visible .cursor-dot,
body.cursor-is-visible.cursor-over-action .cursor-ring {
  opacity: 1;
}

body.cursor-over-action .cursor-dot {
  filter: drop-shadow(1px 3px 2px rgba(76, 91, 70, 0.32)) saturate(0.88);
}

body.cursor-over-action .cursor-ring {
  width: 39px;
  height: 39px;
  border-color: rgba(113, 128, 107, 0.58);
}

body.cursor-is-pressed .cursor-ring {
  width: 21px;
  height: 21px;
  border-color: rgba(184, 137, 105, 0.72);
}

.paper-grain {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: 0.16;
  mix-blend-mode: multiply;
  background-image:
    repeating-radial-gradient(circle at 30% 20%, transparent 0 1px, rgba(81, 70, 52, 0.08) 1.5px 2px),
    repeating-linear-gradient(91deg, transparent 0 8px, rgba(110, 98, 74, 0.025) 9px 10px);
  background-size: 7px 7px, 17px 17px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem clamp(1.25rem, 3.5vw, 4rem);
  color: rgba(72, 72, 63, 0.76);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
}

.site-title {
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.3vw, 2.2rem);
}

.sound-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.62rem 0.85rem;
  border: 1px solid rgba(72, 72, 63, 0.24);
  border-radius: 999px;
  color: inherit;
  background: rgba(247, 242, 233, 0.74);
  box-shadow: 0 5px 16px rgba(72, 65, 52, 0.06);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: color 300ms ease, background-color 300ms ease, border-color 300ms ease;
}

.sound-toggle:hover,
.sound-toggle:focus-visible,
.sound-toggle.needs-attention {
  color: var(--ink);
  border-color: rgba(113, 128, 107, 0.48);
  background: rgba(247, 242, 233, 0.94);
}

.sound-toggle.is-playing {
  border-color: rgba(113, 128, 107, 0.34);
  background: rgba(228, 232, 218, 0.78);
}

.sound-toggle:focus-visible,
.reopen-letter:focus-visible {
  outline: 1px solid var(--ink-soft);
  outline-offset: 5px;
}

.sound-bars {
  display: flex;
  width: 1rem;
  height: 0.75rem;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.sound-bars i {
  display: block;
  width: 1px;
  height: 28%;
  background: currentColor;
  transform-origin: center;
}

.sound-toggle.is-playing .sound-bars i {
  animation: sound-wave 1.1s ease-in-out infinite;
}

.sound-toggle.is-playing .sound-bars i:nth-child(2) {
  animation-delay: -360ms;
}

.sound-toggle.is-playing .sound-bars i:nth-child(3) {
  animation-delay: -720ms;
}

.chapter-count {
  display: flex;
  gap: 0.42rem;
  font-variant-numeric: tabular-nums;
}

.chapter-count .divider {
  opacity: 0.35;
}

.progress {
  position: fixed;
  right: clamp(1.25rem, 3.5vw, 4rem);
  top: 50%;
  z-index: 40;
  display: grid;
  gap: 0.75rem;
  transform: translateY(-50%);
}

.progress::before {
  position: absolute;
  top: 0.62rem;
  bottom: 0.62rem;
  left: 50%;
  z-index: -1;
  width: 1px;
  content: "";
  background: linear-gradient(transparent, rgba(72, 72, 63, 0.18) 12%, rgba(72, 72, 63, 0.18) 88%, transparent);
  transform: translateX(-50%);
}

.progress a {
  display: grid;
  width: 1.25rem;
  height: 1.25rem;
  place-items: center;
}

.progress span {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(72, 72, 63, 0.34);
  transition: transform 500ms ease, background-color 500ms ease;
}

.progress a.active span {
  background: var(--ink);
  transform: scale(2);
}

.chapter {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  scroll-snap-align: start;
  isolation: isolate;
  background: var(--paper);
}

.chapter::before {
  position: absolute;
  top: clamp(4.8rem, 9vh, 7rem);
  left: clamp(1.5rem, 7.6vw, 7.6rem);
  z-index: 1;
  content: attr(data-chapter);
  color: rgba(72, 72, 63, 0.045);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(7rem, 16vw, 15rem);
  font-weight: 400;
  line-height: 0.75;
  letter-spacing: -0.08em;
  pointer-events: none;
  transform: translateX(-0.08em);
}

.chapter::after {
  position: absolute;
  right: 5vw;
  bottom: 0;
  left: 5vw;
  z-index: 2;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(109, 103, 88, 0.16), transparent);
}

.art {
  position: absolute;
  inset: 0;
  z-index: -2;
  margin: 0;
  overflow: hidden;
  clip-path: inset(1.2% 0 1.2% 0);
  transition: clip-path 1.8s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.chapter.is-visible .art {
  clip-path: inset(0);
}

.art::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(247, 242, 233, 0.5) 0%, rgba(247, 242, 233, 0.08) 46%, transparent 72%);
}

.art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: translate3d(var(--parallax-x, 0), var(--parallax-y, 0), 0) scale(1.025);
  filter: saturate(0.9) contrast(0.98);
  transition: transform 2.2s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.chapter.is-visible .art img {
  transform: translate3d(var(--parallax-x, 0), var(--parallax-y, 0), 0) scale(1);
}

.copy {
  position: relative;
  z-index: 4;
  width: var(--content-width);
  padding-top: clamp(8rem, 17vh, 12rem);
  margin-left: clamp(1.5rem, 8vw, 8rem);
  padding-bottom: 5rem;
}

.eyebrow {
  margin: 0 0 2rem;
  color: var(--ink-soft);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.25em;
}

h1 {
  margin: 0 0 3rem;
  font-family: "Future Letter Handwriting", "STKaiti", "KaiTi", cursive;
  font-size: clamp(2.5rem, 5vw, 5.5rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.15;
}

.lines {
  font-family: "Future Letter Handwriting", "STKaiti", "KaiTi", cursive;
  font-weight: 400;
  max-width: 31rem;
}

.lines p {
  margin: 0 0 1.7rem;
  font-size: clamp(1rem, 1.4vw, 1.26rem);
  font-weight: 400;
  letter-spacing: 0.07em;
  line-height: 2;
  opacity: 1;
}

.written-line {
  display: inline-block;
  opacity: 0;
  clip-path: inset(0 100% 0 0);
  filter: blur(0.8px);
  transform: translateY(0.22em);
  transition:
    opacity 720ms ease,
    clip-path 1.15s cubic-bezier(0.2, 0.72, 0.2, 1),
    filter 900ms ease,
    transform 900ms ease;
  transition-delay: calc(120ms + var(--line-order, 0) * 170ms);
}

.chapter.is-visible .written-line {
  opacity: 1;
  clip-path: inset(0);
  filter: blur(0);
  transform: translateY(0);
}

.emphasis {
  color: #4f5e50;
}

.alone {
  margin-top: 2.7rem !important;
  margin-bottom: 2.7rem !important;
  font-size: clamp(1.45rem, 2.2vw, 2.1rem) !important;
  letter-spacing: 0.18em !important;
}

.thanks {
  margin-top: 3.2rem !important;
}

.signature {
  font-family: "Future Letter Handwriting", "STKaiti", "KaiTi", cursive;
  font-weight: 400;
  display: grid;
  gap: 0.45rem;
  margin-top: 3.5rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 1.2s ease 1s, transform 1.2s ease 1s;
}

.chapter.is-visible .signature {
  opacity: 1;
  transform: translateY(0);
}

.chapter-next {
  position: absolute;
  bottom: 2.2rem;
  left: clamp(1.5rem, 8vw, 8rem);
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.7rem 0;
  border: 0;
  color: var(--ink-soft);
  background: transparent;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-decoration: none;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  transition: color 350ms ease, opacity 900ms ease 850ms, transform 900ms ease 850ms;
}

.chapter.is-visible .chapter-next {
  opacity: 1;
  transform: translateY(0);
}

.chapter-next i {
  display: block;
  position: relative;
  width: 3rem;
  height: 1px;
  background: currentColor;
  transform-origin: left;
  transition: width 350ms ease;
}

.chapter-next i::after {
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  content: "";
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

.chapter-next:hover,
.chapter-next:focus-visible {
  color: var(--ink);
}

.chapter-next:hover i,
.chapter-next:focus-visible i {
  width: 4.25rem;
}

.chapter-next--opening {
  left: 50%;
  flex-direction: column;
  gap: 0.65rem;
  transform: translate(-50%, 8px);
}

.chapter.is-visible .chapter-next--opening {
  transform: translate(-50%, 0);
}

.chapter-next--opening i {
  width: 1px;
  height: 2.6rem;
  background: linear-gradient(var(--ink-soft), transparent);
  animation: breathe 2.4s ease-in-out infinite;
}

.chapter-next--opening i::after {
  display: none;
}

.night .art::after {
  background: linear-gradient(90deg, rgba(247, 242, 233, 0.94) 0%, rgba(247, 242, 233, 0.52) 38%, transparent 69%);
}

.home .copy,
.journey .copy {
  padding-top: clamp(6.5rem, 12vh, 9rem);
}

.final-copy {
  padding-top: clamp(6.5rem, 13vh, 9rem);
}

.wind-leaves {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.5s ease 500ms;
}

.epilogue.is-visible .wind-leaves {
  opacity: 0.72;
}

.wind-leaves i {
  position: absolute;
  left: 55%;
  top: 42%;
  width: 9px;
  height: 5px;
  border-radius: 100% 0 100% 0;
  background: #9ca579;
  animation: drift 8s linear infinite;
}

.wind-leaves i:nth-child(2) {
  top: 56%;
  animation-delay: -2s;
  animation-duration: 10s;
}

.wind-leaves i:nth-child(3) {
  top: 33%;
  animation-delay: -4.5s;
  animation-duration: 12s;
}

.wind-leaves i:nth-child(4) {
  top: 68%;
  animation-delay: -6s;
  animation-duration: 9s;
}

.music-credit {
  margin: 1.7rem 0 0;
  color: rgba(72, 72, 63, 0.55);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  line-height: 1.7;
}

.music-credit a {
  text-underline-offset: 0.2em;
}

.letter-closing {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  visibility: hidden;
  place-items: center;
  padding: 1.5rem;
  opacity: 0;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 253, 248, 0.96), rgba(243, 236, 223, 0.98) 62%),
    var(--paper-warm);
  transition: opacity 700ms ease, visibility 0s linear 700ms;
}

.letter-closing.is-active {
  visibility: visible;
  opacity: 1;
  transition-delay: 0s;
}

body.letter-is-closing {
  overflow: hidden;
}

.closing-content {
  display: grid;
  place-items: center;
  text-align: center;
}

.envelope-stage {
  position: relative;
  width: 20rem;
  height: 14rem;
  perspective: 900px;
}

.envelope {
  position: absolute;
  right: 1.25rem;
  bottom: 0;
  left: 1.25rem;
  height: 10.5rem;
  filter: drop-shadow(0 18px 24px rgba(77, 65, 47, 0.14));
  transform-style: preserve-3d;
}

.envelope-back,
.envelope-front,
.envelope-flap,
.envelope-letter {
  position: absolute;
  inset: 0;
}

.envelope-back {
  z-index: 1;
  border: 1px solid rgba(101, 86, 64, 0.2);
  border-radius: 2px;
  background: #e9ddca;
}

.envelope-letter {
  inset: auto 1.55rem 1.1rem;
  z-index: 2;
  display: grid;
  height: 7.2rem;
  place-items: start center;
  padding-top: 1.8rem;
  border: 1px solid rgba(101, 86, 64, 0.12);
  color: var(--ink-soft);
  background: #faf7f0;
  font-family: "Future Letter Handwriting", "STKaiti", cursive;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  transform: translateY(-5rem);
}

.envelope-front {
  z-index: 3;
  background: linear-gradient(155deg, #efe5d5, #dfd0b8);
  clip-path: polygon(0 28%, 50% 69%, 100% 28%, 100% 100%, 0 100%);
}

.envelope-front::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(25deg, transparent 49.7%, rgba(116, 96, 67, 0.15) 50%, transparent 50.4%);
  opacity: 0.6;
}

.envelope-flap {
  z-index: 4;
  height: 7.2rem;
  background: #e7dac5;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform: rotateX(180deg);
  transform-origin: top;
}

.envelope-seal {
  position: absolute;
  top: 4.8rem;
  left: 50%;
  z-index: 5;
  display: grid;
  width: 2.3rem;
  height: 2.3rem;
  place-items: center;
  border-radius: 50%;
  color: rgba(255, 250, 240, 0.9);
  background: #a87566;
  font-family: "Future Letter Handwriting", cursive;
  font-size: 1rem;
  opacity: 0;
  box-shadow: inset 0 0 0 2px rgba(255, 245, 230, 0.2);
  transform: translateX(-50%) scale(1.4);
}

.letter-closing.is-active .envelope-letter {
  animation: store-letter 2s cubic-bezier(0.2, 0.7, 0.2, 1) 350ms forwards;
}

.letter-closing.is-active .envelope-flap {
  animation: close-flap 700ms cubic-bezier(0.35, 0, 0.2, 1) 1.8s forwards;
}

.letter-closing.is-active .envelope-seal {
  animation: place-seal 550ms ease 2.38s forwards;
}

.closing-title {
  margin: 2.2rem 0 0;
  font-family: "Future Letter Handwriting", "STKaiti", cursive;
  font-size: clamp(1.65rem, 3.5vw, 2.5rem);
  letter-spacing: 0.08em;
  opacity: 0;
  transform: translateY(0.5rem);
}

.closing-date {
  margin-top: 0.8rem;
  color: var(--ink-soft);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  opacity: 0;
}

.reopen-letter {
  margin-top: 2.2rem;
  padding: 0.65rem 0.15rem;
  border: 0;
  border-bottom: 1px solid rgba(72, 72, 63, 0.35);
  color: var(--ink-soft);
  background: transparent;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  opacity: 0;
  cursor: pointer;
}

.letter-closing.is-active .closing-title,
.letter-closing.is-active .closing-date,
.letter-closing.is-active .reopen-letter {
  animation: closing-copy-in 900ms ease 2.75s forwards;
}

.letter-closing.is-active .closing-date {
  animation-delay: 2.9s;
}

.letter-closing.is-active .reopen-letter {
  animation-delay: 3.05s;
}

@keyframes breathe {
  0%, 100% { opacity: 0.25; transform: scaleY(0.72); transform-origin: top; }
  50% { opacity: 0.8; transform: scaleY(1); transform-origin: top; }
}

@keyframes sound-wave {
  0%, 100% { transform: scaleY(0.45); }
  50% { transform: scaleY(2.4); }
}

@keyframes store-letter {
  0%, 68% { opacity: 1; }
  0% { transform: translateY(-5rem) scale(1); }
  72% { transform: translateY(1.8rem) scale(0.94); }
  100% { opacity: 0; transform: translateY(1.8rem) scale(0.94); }
}

@keyframes close-flap {
  from { transform: rotateX(180deg); }
  to { transform: rotateX(0deg); }
}

@keyframes place-seal {
  from { opacity: 0; transform: translateX(-50%) scale(1.4); }
  to { opacity: 1; transform: translateX(-50%) scale(1); }
}

@keyframes closing-copy-in {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) rotate(0deg); }
  to { transform: translate3d(46vw, 12vh, 0) rotate(360deg); }
}

@media (max-width: 780px) {
  :root {
    --content-width: calc(100vw - 2rem);
  }

  html {
    scroll-snap-type: none;
  }

  .site-header {
    padding: 1.1rem 1.2rem;
  }

  .site-title {
    max-width: 70vw;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .header-actions {
    gap: 0.85rem;
  }

  .sound-toggle {
    position: fixed;
    top: 3.8rem;
    right: 1rem;
    padding: 0.58rem 0.72rem;
    font-size: 0.65rem;
  }

  .progress {
    display: none;
  }

  .chapter {
    display: flex;
    min-height: 100svh;
    align-items: flex-end;
    padding-top: 48svh;
  }

  .art {
    height: 61svh;
  }

  .art img {
    object-position: 66% center;
  }

  .art::after {
    background: linear-gradient(180deg, transparent 28%, rgba(247, 242, 233, 0.68) 70%, var(--paper) 100%);
  }

  .night .art::after {
    background: linear-gradient(180deg, transparent 20%, rgba(247, 242, 233, 0.72) 69%, var(--paper) 100%);
  }

  .copy,
  .home .copy,
  .journey .copy,
  .final-copy {
    width: calc(100% - 2rem);
    margin: 0 1rem;
    padding: 3.5rem 0 4rem;
  }

  h1 {
    margin-bottom: 2.2rem;
    font-size: clamp(2.2rem, 12vw, 4rem);
  }

  .eyebrow {
    margin-bottom: 1.4rem;
  }

  .lines p {
    margin-bottom: 1.35rem;
    font-size: 1rem;
    line-height: 1.9;
  }

  .opening {
    padding-top: 43svh;
  }

  .chapter::before {
    top: auto;
    bottom: 1rem;
    left: auto;
    right: 1rem;
    font-size: 6rem;
    opacity: 0.6;
  }

  .chapter-next,
  .chapter-next--opening {
    right: 1rem;
    bottom: 1rem;
    left: auto;
    flex-direction: row;
    transform: translateY(8px);
  }

  .chapter.is-visible .chapter-next,
  .chapter.is-visible .chapter-next--opening {
    transform: translateY(0);
  }

  .chapter-next--opening i {
    width: 2.6rem;
    height: 1px;
    background: currentColor;
    animation: none;
  }

  .chapter-next--opening i::after {
    display: block;
  }

  .paper-grain {
    opacity: 0.1;
  }

  .envelope-stage {
    width: min(20rem, 88vw);
    transform: scale(0.9);
  }

  .closing-title {
    margin-top: 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .written-line,
  .signature,
  .wind-leaves {
    opacity: 1;
    clip-path: none;
    filter: none;
    transform: none;
  }

  .letter-closing.is-active .envelope-letter,
  .letter-closing.is-active .envelope-flap,
  .letter-closing.is-active .envelope-seal,
  .letter-closing.is-active .closing-title,
  .letter-closing.is-active .closing-date,
  .letter-closing.is-active .reopen-letter {
    animation-duration: 0.01ms !important;
    animation-delay: 0.01ms !important;
    animation-fill-mode: forwards;
  }
}