/* ─────────────────────────────────────────────────────────────
   老鸽子茶话会 · 个人主页样式
   主题：二次元 / 茶话会 —— 柔和暖色 + 青鸟蓝绿点缀
   ───────────────────────────────────────────────────────────── */

:root {
  /* 配色 */
  --bg:        #faf4ea;   /* 奶油暖白底色 */
  --bg-soft:   #f3e9d8;   /* 渐变低点 */
  --card:      #fffaf2;   /* 卡片 */
  --bird:      #7fb5c9;   /* 青鸟蓝绿（主点缀）*/
  --bird-deep: #5d97ad;
  --tea:       #c39d72;   /* 暖茶棕（次点缀）*/
  --pink:      #e8b4b8;   /* 柔粉 */
  --ink:       #4a4039;   /* 正文暖灰 */
  --muted:     #8a7f74;   /* 弱化文字 */
  --line:      #ece0cf;   /* 分隔线 / 边框 */

  /* 形状 */
  --radius:    18px;
  --radius-sm: 12px;
  --shadow:    0 10px 30px -12px rgba(116, 92, 64, 0.28);
  --shadow-sm: 0 4px 14px -6px rgba(116, 92, 64, 0.25);

  --font-head: 'Quicksand', -apple-system, BlinkMacSystemFont, 'PingFang SC',
               'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
               'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  line-height: 1.75;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(127, 181, 201, 0.18), transparent 60%),
    radial-gradient(1000px 520px at 110% 0%,  rgba(232, 180, 184, 0.20), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--bird-deep); text-decoration: none; }
a:hover { color: var(--tea); }

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 22px 64px;
}

/* ── 顶部导航栏 ───────────────────────────────────────────── */
.topnav {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 26px 2px 10px;
}
.topnav__link {
  padding: 11px 30px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}
.topnav__link:hover { color: var(--bird-deep); background: rgba(127, 181, 201, 0.1); }
.topnav__link.is-active {
  color: var(--bird-deep);
  background: rgba(127, 181, 201, 0.16);
  border-color: rgba(127, 181, 201, 0.34);
}

@media (max-width: 560px) {
  .topnav__link { padding: 9px 22px; font-size: 1.05rem; }
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  text-align: center;
  padding: 80px 18px 48px;
  overflow: hidden;
}

.hero__deco { position: absolute; inset: 0; pointer-events: none; }
.deco {
  position: absolute;
  font-size: 2rem;
  opacity: 0.5;
  filter: saturate(0.85);
  animation: float 7s ease-in-out infinite;
}
.deco--bird { top: 14%;  left: 10%;  font-size: 2.4rem; animation-delay: 0s; }
.deco--tea  { top: 22%;  right: 12%; animation-delay: 1.4s; }
.deco--leaf { bottom: 18%; left: 16%; font-size: 1.6rem; opacity: 0.4; animation-delay: 2.6s; }

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-12px) rotate(4deg); }
}

.avatar {
  width: 132px; height: 132px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: linear-gradient(145deg, #fff, var(--bg-soft));
  display: grid; place-items: center;
  box-shadow: var(--shadow), 0 0 0 6px rgba(255, 255, 255, 0.7), 0 0 0 9px rgba(127, 181, 201, 0.35);
  overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar__placeholder { font-size: 4rem; line-height: 1; }

.hero__site {
  font-family: var(--font-head);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--tea);
  margin: 0 0 6px;
}
.hero__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.9rem, 6vw, 2.6rem);
  margin: 0 0 14px;
  color: var(--ink);
}
.hero__tagline {
  max-width: 30em;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1rem;
}

/* 社交按钮 */
.socials {
  margin-top: 26px;
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}
.social {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.social:hover {
  transform: translateY(-3px);
  border-color: var(--bird);
  color: var(--ink);
  box-shadow: 0 10px 22px -10px rgba(116, 92, 64, 0.4);
}
.social__icon { font-size: 1.05rem; }

/* ── Section 通用 ─────────────────────────────────────────── */
.section { margin-top: 56px; }
.section__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--ink);
  display: flex; align-items: center; gap: 14px;
  margin: 0 0 22px;
}
.section__title span { white-space: nowrap; }
.section__title::after {
  content: ""; flex: 1; height: 2px;
  background: linear-gradient(90deg, var(--bird), transparent);
  border-radius: 2px;
}

/* About */
.about__line { margin: 0 0 10px; font-size: 1.04rem; }

.chips {
  list-style: none; padding: 0; margin: 22px 0 0;
  display: flex; flex-wrap: wrap; gap: 9px;
}
.chip {
  padding: 5px 14px;
  font-size: 0.85rem;
  color: var(--bird-deep);
  background: rgba(127, 181, 201, 0.12);
  border: 1px solid rgba(127, 181, 201, 0.32);
  border-radius: 999px;
}

/* ── Publications 卡片 ────────────────────────────────────── */
.cards { display: grid; gap: 16px; }
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 16px; bottom: 16px;
  width: 4px; border-radius: 4px;
  background: linear-gradient(180deg, var(--bird), var(--pink));
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.card__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-bottom: 10px;
}
.card__title {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.12rem;
  margin: 0;
  color: var(--ink);
  overflow-wrap: break-word;
}
.card__year {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 10px;
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--bird-deep);
  background: rgba(127, 181, 201, 0.14);
  border: 1px solid rgba(127, 181, 201, 0.34);
  border-radius: 999px;
  vertical-align: middle;
  white-space: nowrap;
}
.card__role {
  margin-left: auto;
  flex-shrink: 0;
  align-self: baseline;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--tea);
  white-space: nowrap;
}
.card__desc { margin: 0 0 14px; color: var(--ink); font-size: 0.95rem; line-height: 1.7; overflow-wrap: break-word; }
.card__subtitle { margin: 0 0 6px; color: var(--muted); font-size: 0.9rem; font-style: italic; }
.card__meta { margin: 0 0 14px; color: var(--muted); font-size: 0.92rem; overflow-wrap: break-word; }
.card__links { margin: 0; display: flex; flex-wrap: wrap; gap: 9px; }

.btn {
  display: inline-block;
  padding: 5px 14px;
  font-size: 0.85rem;
  border-radius: 999px;
  color: var(--bird-deep);
  background: rgba(127, 181, 201, 0.10);
  border: 1px solid rgba(127, 181, 201, 0.4);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.btn:hover {
  background: var(--bird);
  color: #fff;
  transform: translateY(-2px);
}

/* ── 简单条目（社区服务 / 奖项）─────────────────────────────── */
.entries { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.entry {
  padding: 14px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.entry__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 14px;
}
.entry__title { font-size: 1rem; color: var(--ink); overflow-wrap: break-word; }
.entry__desc { margin: 8px 0 0; color: var(--muted); font-size: 0.92rem; line-height: 1.7; overflow-wrap: break-word; }
.entry__year,
.entry__rank {
  margin-left: auto;
  flex-shrink: 0;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: 999px;
  padding: 2px 12px;
  white-space: nowrap;
}
.entry__year {
  color: var(--bird-deep);
  background: rgba(127, 181, 201, 0.14);
  border: 1px solid rgba(127, 181, 201, 0.34);
}
.entry__rank {
  color: #a87b3d;
  background: rgba(195, 157, 114, 0.18);
  border: 1px solid rgba(195, 157, 114, 0.45);
}

/* ── 青鸟大图 ─────────────────────────────────────────────── */
.bluebirds {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.bluebirds img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}
.bluebirds:hover img { transform: scale(1.03); }
.bluebirds figcaption {
  padding: 10px 16px;
  text-align: center;
  font-family: var(--font-head);
  font-size: 0.84rem;
  color: var(--muted);
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
  font-size: 0.86rem;
}

/* ── 滚动淡入 ─────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .deco { animation: none; }
}

/* ── 响应式 ───────────────────────────────────────────────── */
@media (max-width: 560px) {
  .hero { padding-top: 56px; }
  .avatar { width: 110px; height: 110px; }
  .deco--bird, .deco--tea { font-size: 1.7rem; }
  .card { padding: 18px 18px; }
}