:root {
  --ink: #050505;
  --paper: #f8f6ed;
  --paper-warm: #fff9dc;
  --sky: #95dbe8;
  --grass: #3e8d3f;
  --rose: #ff7f9c;
  --lemon: #f4ec63;
  --violet: #b9a0ff;
  --line: 3px solid var(--ink);
  --shadow: 8px 8px 0 var(--ink);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 10%, rgba(255, 127, 156, 0.2), transparent 20rem),
    radial-gradient(circle at 86% 38%, rgba(149, 219, 232, 0.35), transparent 22rem),
    linear-gradient(90deg, rgba(5, 5, 5, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(5, 5, 5, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: auto, auto, 34px 34px, 34px 34px, auto;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
  line-height: 1.45;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.24;
  background-image:
    repeating-radial-gradient(circle at 0 0, rgba(0, 0, 0, 0.18) 0 1px, transparent 1px 4px);
  mix-blend-mode: multiply;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

.top-note {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.55rem 3rem;
  color: #fff;
  background: var(--grass);
  border-bottom: var(--line);
  font-size: 0.95rem;
}

.note-close {
  position: absolute;
  right: 1rem;
  width: 28px;
  height: 28px;
  border: 0;
  color: #fff;
  background: transparent;
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 5vw, 4.5rem);
  border-bottom: var(--line);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.45), transparent),
    var(--sky);
}

.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 700;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.1rem;
  font-size: 0.95rem;
}

.nav-links a,
.plain-link,
.site-footer a {
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
}

.header-pill {
  justify-self: end;
  width: fit-content;
  padding: 0.35rem 0.85rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  text-decoration: none;
  box-shadow: 3px 3px 0 var(--ink);
}

.hero {
  position: relative;
  min-height: calc(100vh - 120px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.8fr);
  align-items: end;
  gap: clamp(1.5rem, 5vw, 5rem);
  padding: clamp(3rem, 8vw, 7rem) clamp(1rem, 5vw, 4.5rem) 4rem;
  color: #fff;
  background: #000;
  contain: paint;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background:
    linear-gradient(115deg, transparent 0 45%, rgba(255, 255, 255, 0.7) 45% 46%, transparent 46%),
    repeating-linear-gradient(0deg, transparent 0 18px, rgba(255, 255, 255, 0.16) 18px 20px);
  pointer-events: none;
}

.hero-copy,
.cover-board {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-label,
.strip-label,
.preview-date,
.cover-card p {
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
  font-weight: 800;
}

.hero h1,
.letter-section h2,
.post-heading h2,
.timeline-heading h2 {
  max-width: 980px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.4rem, 10vw, 9.8rem);
  line-height: 0.88;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  margin: 1.5rem 0 0;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.1rem;
  margin-top: 2rem;
}

.sticker-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.48rem 1.1rem;
  border: var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: #fff;
  box-shadow: 5px 5px 0 var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.sticker-button:hover {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 var(--ink);
}

.sticker-button:focus-visible,
.plain-link:focus-visible,
.header-pill:focus-visible,
input:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 4px solid var(--lemon);
  outline-offset: 4px;
}

.hero-rail {
  position: absolute;
  left: 0.6rem;
  bottom: 0.8rem;
  z-index: 2;
  display: grid;
  gap: 0.55rem;
}

.hero-rail span {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: #fff;
}

.hero-rail span:nth-child(n + 2) {
  opacity: 0.62;
}

.cover-board {
  min-height: 640px; /* 稍微增加高度，让排版更舒展 */
  color: var(--ink);
  position: relative;
}

.cover-card {
  position: absolute;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--paper-warm);
  box-shadow: var(--shadow);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
}

/* 主相框：放到右侧稍微居中的位置，增加悬浮效果 */
.cover-card-main {
  right: 2%;
  top: 50%;
  transform: translateY(-50%) rotate(2.5deg);
  width: min(100%, 420px);
  padding: 1.1rem;
  z-index: 2;
}

.cover-card-main:hover {
  transform: translateY(-50%) rotate(0deg) scale(1.02);
  box-shadow: 12px 12px 0 var(--ink);
  z-index: 10;
}

.cover-card-main h2 {
  margin: 0.2rem 0 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.86;
}

.cover-photo {
  min-height: 320px; /* 照片区域稍微拉长，比例更好看 */
  display: grid;
  place-items: center;
  border: var(--line);
  border-radius: 4px;
  background: var(--sky);
  overflow: hidden; /* 确保圆角生效 */
}

/* 粉色小卡片：移到左下角，作为点缀 */
.cover-card-small {
  left: -20px;
  bottom: 8%;
  width: min(260px, 65%);
  padding: 1.2rem;
  background: var(--rose);
  transform: rotate(-6deg);
  z-index: 3;
}

.cover-card-small:hover {
  transform: rotate(-2deg) scale(1.05);
  box-shadow: 10px 10px 0 var(--ink);
  z-index: 10;
}

.burst {
  display: inline-grid;
  place-items: center;
  width: 84px;
  height: 84px;
  margin-bottom: 0.5rem;
  border: var(--line);
  border-radius: 999px;
  background: var(--lemon);
  font-weight: 900;
}

/* 胶带调整位置，显得更随性 */
.tape {
  position: absolute;
  z-index: 4;
  width: 130px;
  height: 36px;
  border: 2px solid rgba(5, 5, 5, 0.7);
  background: rgba(255, 255, 255, 0.58);
}

.tape-a {
  right: 360px;
  top: 80px;
  transform: rotate(-15deg);
}

.tape-b {
  right: -10px;
  bottom: 120px;
  transform: rotate(20deg);
}

/* 右上角的涂鸦文字 */
.scribble {
  position: absolute;
  right: 60px;
  top: 20px;
  max-width: 250px;
  padding: 0.7rem 0.9rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  transform: rotate(-4deg);
  z-index: 1;
}

.intro-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: var(--line);
  background: #fff;
}

.intro-strip div {
  min-height: 180px;
  padding: 1.25rem clamp(1rem, 4vw, 3.8rem);
  border-right: var(--line);
}

.intro-strip div:last-child {
  border-right: 0;
}

.intro-strip p {
  max-width: 390px;
  margin: 0.7rem 0 0;
  font-size: clamp(1.05rem, 2vw, 1.45rem);
  font-weight: 700;
}

.strip-label,
.section-label {
  display: inline-flex;
  width: fit-content;
  padding: 0.18rem 0.5rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--lemon);
}

.letter-section,
.timeline-section {
  padding: clamp(3.5rem, 8vw, 7rem) clamp(1rem, 5vw, 4.5rem);
}

.letter-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.75fr);
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: 1.5rem;
}

.letter-section h2,
.post-heading h2,
.timeline-heading h2 {
  font-size: clamp(2.7rem, 6.5vw, 6.8rem);
  color: var(--ink);
}

.letter-copy {
  border-left: var(--line);
  padding-left: clamp(1rem, 3vw, 2rem);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.letter-copy p:first-child {
  margin-top: 0;
}

.post-section {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(280px, 0.54fr);
  gap: clamp(1.25rem, 4vw, 3rem);
  align-items: stretch;
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 5vw, 4.5rem);
  border-block: var(--line);
  background: var(--sky);
}

.post-panel,
.preview-card {
  border: var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.post-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.8fr);
  gap: clamp(1.25rem, 4vw, 3rem);
  padding: clamp(1rem, 4vw, 2.2rem);
}

.post-heading {
  display: flex;
  flex-direction: column;
  justify-content: flex-start; /* 改为靠上对齐 */
  gap: 1.5rem;                 /* 标签和标题之间保持舒服的间距 */
  min-height: auto;            /* 取消僵硬的固定高度 */
  padding-top: 0.5rem;
}

/* 单独微调一下这个大标题的行高和字号，让它看起来更精致 */
.post-heading h2 {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem); 
  line-height: 1.05;
  margin-top: 0;
}

.memory-form {
  display: grid;
  gap: 0.65rem;
  align-content: start;
}

.memory-form label {
  font-size: 0.88rem;
  font-weight: 900;
  text-transform: uppercase;
}

.memory-form input,
.memory-form textarea {
  width: 100%;
  border: var(--line);
  border-radius: var(--radius);
  padding: 0.8rem;
  color: var(--ink);
  background: #fff;
}

.memory-form textarea {
  resize: vertical;
  min-height: 150px;
}

.submit-button {
  width: fit-content;
  margin-top: 0.6rem;
  background: var(--lemon);
}

.submit-button[disabled] {
  cursor: wait;
  opacity: 0.72;
}

.form-status {
  min-height: 1.5em;
  margin: 0.3rem 0 0;
  font-weight: 700;
}

.preview-card {
  align-self: start;
  padding: 1rem;
  transform: rotate(1.5deg);
}

.preview-photo {
  aspect-ratio: 4 / 5;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.5), transparent),
    repeating-linear-gradient(-12deg, var(--violet) 0 18px, var(--rose) 18px 36px);
}

.preview-photo img,
.memory-image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.preview-card p:last-child {
  margin-bottom: 0.2rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.05;
}

.timeline-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
  overflow: hidden;
}

.memory-card {
  grid-column: span 4;
  position: relative;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  border: var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 6px 6px 0 var(--ink);
  overflow: hidden;
}

.memory-card:nth-child(3n + 2) {
  grid-column: span 5;
  background: var(--paper-warm);
}

.memory-card:nth-child(4n) {
  transform: rotate(-1deg);
}

.memory-card:nth-child(4n + 1) {
  transform: rotate(0.8deg);
}

.memory-image-wrap {
  aspect-ratio: 5 / 3.4;
  border-bottom: var(--line);
  background:
    linear-gradient(135deg, rgba(149, 219, 232, 0.6), transparent 48%),
    var(--lemon);
}

.memory-body {
  padding: 1rem;
}

.memory-time {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 0.8rem;
  padding: 0.2rem 0.48rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--sky);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.memory-text {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.05;
}

.empty-state {
  grid-column: 1 / -1;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1rem, 5vw, 4.5rem);
  border-top: var(--line);
  background: #000;
  color: #fff;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .site-header,
  .hero,
  .letter-grid,
  .post-section,
  .post-panel {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
  }

  .header-pill {
    justify-self: start;
  }

  .hero {
    min-height: auto;
  }

  .cover-board {
    min-height: 560px;
  }

  .intro-strip {
    grid-template-columns: 1fr;
  }

  .intro-strip div {
    border-right: 0;
    border-bottom: var(--line);
  }

  .intro-strip div:last-child {
    border-bottom: 0;
  }

  .post-heading {
    min-height: auto;
  }

  .memory-card,
  .memory-card:nth-child(3n + 2) {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .top-note {
    justify-content: flex-start;
    padding-right: 3.5rem;
  }

  .site-header {
    gap: 0.8rem;
  }

  .nav-links {
    justify-content: start;
  }

  .hero h1 {
    font-size: clamp(3.1rem, 16vw, 5.5rem);
  }

  .hero-rail {
    display: none;
  }

  .cover-board {
    min-height: 520px;
    padding-bottom: 2rem;
  }

  .cover-card-main {
    top: auto;
    bottom: 2rem;
    transform: rotate(1deg);
  }

  .cover-card-main:hover {
    transform: rotate(0deg) scale(1.02);
  }

  .cover-card-small {
    bottom: -1rem;
    left: 0;
    transform: rotate(-4deg);
  }

  .tape-a {
    right: 44%;
    top: -10px;
  }

  .scribble {
    right: 0;
  }

  .letter-copy {
    border-left: 0;
    padding-left: 0;
  }

  .memory-card,
  .memory-card:nth-child(3n + 2) {
    grid-column: 1 / -1;
    transform: none;
  }

  .site-footer {
    display: block;
  }

  .site-footer a {
    display: inline-block;
    margin-top: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@keyframes photoFadeIn {
  from { opacity: 0.4; filter: blur(2px); }
  to { opacity: 1; filter: blur(0); }
}

.cover-photo img {
  animation: photoFadeIn 0.8s ease-out forwards;
}

/* --- 评论区样式 --- */
.comments-wrap {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed rgba(5, 5, 5, 0.2);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.comment-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.c-avatar {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--ink);
  background: #fff;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.c-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-avatar-emoji {
  font-size: 1rem;
}

.c-content {
  background: rgba(255, 255, 255, 0.6);
  padding: 0.4rem 0.8rem;
  border-radius: 12px;
  border-top-left-radius: 2px;
  border: 1px solid var(--ink);
}

.c-name {
  font-size: 0.75rem;
  font-weight: 900;
  color: var(--grass);
  margin-right: 0.5rem;
}

.c-text {
  font-size: 0.95rem;
}

/* --- 评论输入框样式 --- */
.reply-box {
  margin-top: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--paper);
  padding: 0.8rem;
  border-radius: 8px;
  border: 1px solid rgba(5, 5, 5, 0.1);
}

.reply-user-info, .reply-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.reply-name, .reply-avatar, .reply-input, .reply-pass {
  border: 2px solid var(--ink);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
  background: #fff;
}

.reply-name {
  width: 90px;
}

.reply-avatar {
  flex-grow: 1;
}

.reply-input {
  flex-grow: 1;
  min-width: 150px;
}

.reply-pass {
  width: 70px;
}

.reply-btn {
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--lemon);
  padding: 0.35rem 1rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--ink);
}

.reply-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0 var(--ink);
}

/* --- Emoji 按钮与面板样式 --- */
.input-with-emoji {
  position: relative;
  display: flex;
  width: 100%;
}

.input-with-emoji textarea,
.input-with-emoji input {
  width: 100%;
  padding-right: 2.5rem; /* 给右边的笑脸留出位置 */
}

.emoji-btn {
  position: absolute;
  right: 8px;
  bottom: 8px;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0;
  opacity: 0.6;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 2;
}

/* 评论框比较矮，让笑脸居中对齐 */
.reply-actions .emoji-btn {
  bottom: 50%;
  transform: translateY(50%);
}

.emoji-btn:hover {
  opacity: 1;
  transform: scale(1.1);
}
.reply-actions .emoji-btn:hover {
  transform: translateY(50%) scale(1.1);
}

.emoji-picker-popup {
  position: absolute;
  z-index: 9999;
  display: none;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.emoji-picker-popup.visible {
  display: block;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- 快捷预设身份按钮样式 --- */
.preset-users {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

.preset-label {
  color: rgba(5, 5, 5, 0.6);
  font-weight: bold;
}

.preset-btn {
  background: #fff;
  border: 2px solid var(--ink);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: bold;
  transition: transform 0.1s, box-shadow 0.1s;
}

.preset-btn:hover {
  transform: translateY(-2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.preset-btn:active {
  transform: translateY(0);
  box-shadow: 0 0 0 var(--ink);
}