/* ============================================================
   我们的小站 · 样式
   三套配色：sakura（樱粉，默认）/ mint（薄荷青）/ night（星夜）
   ============================================================ */

/* ---------- 主题变量 ---------- */

:root {
  --accent: #f2789f;
  --accent-2: #ffb3c8;
  --accent-deep: #d94f7d;
  --accent-soft: rgba(242, 120, 159, .12);
  --bg: #fff7f9;
  --bg-2: #ffeef3;
  --card: rgba(255, 255, 255, .78);
  --card-solid: #fff;
  --text: #33232b;
  --text-soft: #836a75;
  --line: rgba(242, 120, 159, .22);
  --shadow: 0 18px 44px -22px rgba(180, 90, 125, .45);
  --shadow-sm: 0 8px 22px -14px rgba(180, 90, 125, .5);
  --radius: 26px;
  --radius-lg: 38px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: Georgia, "Songti SC", "STSong", "SimSun", serif;
}

[data-theme="mint"] {
  --accent: #12b3a6;
  --accent-2: #86e3d8;
  --accent-deep: #0a7f76;
  --accent-soft: rgba(18, 179, 166, .12);
  --bg: #f3fbf9;
  --bg-2: #e6f7f4;
  --text: #1f3330;
  --text-soft: #5f7c78;
  --line: rgba(18, 179, 166, .22);
  --shadow: 0 18px 44px -22px rgba(10, 120, 112, .42);
  --shadow-sm: 0 8px 22px -14px rgba(10, 120, 112, .45);
}

[data-theme="night"] {
  --accent: #a48cff;
  --accent-2: #64d3ff;
  --accent-deep: #cfc0ff;
  --accent-soft: rgba(164, 140, 255, .16);
  --bg: #101026;
  --bg-2: #171735;
  --card: rgba(38, 38, 68, .72);
  --card-solid: #232345;
  --text: #eceafe;
  --text-soft: #a7a3c9;
  --line: rgba(164, 140, 255, .26);
  --shadow: 0 20px 50px -24px rgba(0, 0, 0, .8);
  --shadow-sm: 0 10px 26px -16px rgba(0, 0, 0, .8);
}

/* ---------- 基础 ---------- */

* { box-sizing: border-box; }

/* hidden 属性优先于任何 display 声明，避免被 grid/flex 覆盖 */
[hidden] { display: none !important; }

html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .5s ease, color .5s ease;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }

/* ---------- 背景与光晕 ---------- */

.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-position: center;
  background-size: cover;
  opacity: 0;
  transition: opacity 1.6s ease;
}

.bg.is-on { opacity: .38; }

.bg-veil {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60vw 60vw at 12% -8%, var(--accent-soft), transparent 70%),
    radial-gradient(48vw 48vw at 92% 6%, color-mix(in srgb, var(--accent-2) 30%, transparent), transparent 72%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 60%, var(--bg) 100%);
}

[data-theme="night"] .bg.is-on { opacity: .5; }

/* ---------- 顶栏 ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .7rem clamp(1rem, 4vw, 2.6rem);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}

.brand__heart {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: #fff;
  font-size: 14px;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-sm);
  animation: beat 2.4s ease-in-out infinite;
}

@keyframes beat {
  0%, 100% { transform: scale(1); }
  12% { transform: scale(1.14); }
  24% { transform: scale(1); }
  36% { transform: scale(1.08); }
}

.topnav {
  display: flex;
  gap: .2rem;
  margin-left: auto;
  flex-wrap: wrap;
}

.topnav a {
  position: relative;
  padding: .34rem .78rem;
  border-radius: 999px;
  font-size: .93rem;
  color: var(--text-soft);
  transition: color .25s ease, background .25s ease, transform .25s ease;
}

.topnav a:hover {
  color: var(--accent-deep);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.topnav a.is-active {
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-sm);
}

.topbar__tools {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.iconbtn {
  display: none;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
}

/* 配色选择器：悬停/聚焦时圆点向右滑出 */

.palette { position: relative; }

.palette__btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--card);
  transition: transform .3s ease, box-shadow .3s ease;
}

.palette__btn:hover { transform: rotate(-8deg) scale(1.06); box-shadow: var(--shadow-sm); }

.palette__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
}

.palette__list {
  position: absolute;
  top: 50%;
  right: calc(100% + 6px);
  transform: translateY(-50%);
  display: flex;
  gap: 6px;
  padding: 5px 0 5px 5px;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: max-width .42s ease, opacity .3s ease, padding .42s ease;
}

.palette:hover .palette__list,
.palette:focus-within .palette__list {
  max-width: 130px;
  opacity: 1;
  padding: 5px 8px 5px 5px;
  pointer-events: auto;
}

.palette__opt {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--card-solid);
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease;
}

.palette__opt:hover { transform: scale(1.16); }
.palette__opt.is-active { outline: 2px solid var(--accent); outline-offset: 1px; }
.palette__opt[data-theme="sakura"] { background: linear-gradient(140deg, #f2789f, #ffb3c8); }
.palette__opt[data-theme="mint"] { background: linear-gradient(140deg, #12b3a6, #86e3d8); }
.palette__opt[data-theme="night"] { background: linear-gradient(140deg, #6e5bd8, #64d3ff); }

/* ---------- 布局 ---------- */

.view {
  width: min(1180px, 100% - clamp(1.6rem, 6vw, 5rem));
  margin: 0 auto;
  padding: clamp(1.6rem, 4vw, 3rem) 0 3rem;
  min-height: 60vh;
  animation: viewIn .5s ease both;
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

.footer {
  padding: 2.4rem 1rem 3rem;
  text-align: center;
  color: var(--text-soft);
  font-size: .9rem;
  border-top: 1px solid var(--line);
}

.footer__text { margin: 0 0 .3rem; font-family: var(--font-serif); }
.footer__meta { margin: 0; opacity: .8; }
.footer__admin { opacity: .35; padding: 0 .4rem; }
.footer__admin:hover { opacity: 1; color: var(--accent); }

/* ---------- 首页 · 首屏 ---------- */

.hero {
  text-align: center;
  padding: clamp(1rem, 4vw, 2.4rem) 0 clamp(1.4rem, 4vw, 2.4rem);
}

.hero__avatars {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(.6rem, 3vw, 1.6rem);
  margin-bottom: 1.1rem;
}

.avatar {
  position: relative;
  width: clamp(88px, 17vw, 132px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: floaty 6s ease-in-out infinite;
}

.avatar:nth-child(3) { animation-delay: -3s; }

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

.avatar__ring {
  position: absolute;
  inset: -7px;
  border-radius: 50%;
  border: 2px dashed color-mix(in srgb, var(--accent) 55%, transparent);
  animation: spin 22s linear infinite;
}

.avatar__ring::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 50%;
  width: 9px;
  height: 9px;
  margin-left: -4.5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

@keyframes spin { to { transform: rotate(360deg); } }

.avatar__pic {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--card-solid);
  box-shadow: var(--shadow);
  background: linear-gradient(140deg, var(--accent-soft), var(--card-solid));
}

.avatar__fallback {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 4px solid var(--card-solid);
  box-shadow: var(--shadow);
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
}

.hero__heart {
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  color: var(--accent);
  animation: beat 2.4s ease-in-out infinite;
}

.hero__title {
  margin: .2rem 0 .3rem;
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4.6vw, 2.7rem);
  font-weight: 700;
  letter-spacing: .02em;
}

.hero__sub {
  margin: 0 auto;
  max-width: 34em;
  color: var(--text-soft);
}

/* ---------- 首页 · 计时器 ---------- */

.counter {
  margin: clamp(1.4rem, 4vw, 2.4rem) auto 0;
  padding: clamp(1.1rem, 3vw, 1.8rem) clamp(.9rem, 3vw, 2rem);
  max-width: 760px;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.counter__lead {
  margin: 0 0 .8rem;
  font-size: .95rem;
  color: var(--text-soft);
}

.counter__lead b { color: var(--accent-deep); font-weight: 700; }

.counter__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .6rem;
}

.counter__unit {
  padding: .5rem .3rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--accent-soft) 70%, transparent);
}

.counter__num {
  display: block;
  font-size: clamp(1.35rem, 4.6vw, 2.1rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  font-family: var(--font-serif);
  color: var(--accent-deep);
  line-height: 1.2;
}

.counter__lbl {
  font-size: .8rem;
  color: var(--text-soft);
  letter-spacing: .08em;
}

.counter__clock {
  margin-top: .9rem;
  font-variant-numeric: tabular-nums;
  font-size: .98rem;
  color: var(--text-soft);
}

.counter__clock b { color: var(--accent-deep); font-weight: 700; }

.nextday {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem;
  margin-top: 1rem;
}

.nextday__item {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .3rem .8rem;
  border-radius: 999px;
  font-size: .86rem;
  background: var(--card-solid);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.nextday__item b { color: var(--accent-deep); }

/* ---------- 首页 · 导航卡片（3D） ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: clamp(.8rem, 2vw, 1.2rem);
  margin-top: clamp(1.8rem, 5vw, 2.8rem);
}

.card3d {
  position: relative;
  display: block;
  padding: 1.4rem 1.2rem 1.3rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform .5s cubic-bezier(.2, .7, .3, 1), box-shadow .5s ease;
}

.card3d:hover {
  transform: perspective(820px) rotate3d(1, 1, 0, 9deg) translateY(-6px);
  box-shadow: var(--shadow);
}

.card3d__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: .7rem;
  border-radius: 16px;
  font-size: 1.35rem;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-sm);
  transform: translateZ(30px);
}

.card3d__title {
  margin: 0 0 .2rem;
  font-size: 1.08rem;
  font-weight: 700;
  transform: translateZ(22px);
}

.card3d__desc {
  margin: 0;
  font-size: .88rem;
  color: var(--text-soft);
  transform: translateZ(14px);
}

.card3d__rings {
  position: absolute;
  top: -26px;
  right: -26px;
  width: 96px;
  height: 96px;
  pointer-events: none;
}

.card3d__rings i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--accent) 42%, transparent);
  transition: transform .6s ease;
}

.card3d__rings i:nth-child(2) { inset: 14px; }
.card3d__rings i:nth-child(3) { inset: 28px; }

.card3d:hover .card3d__rings i:nth-child(1) { transform: translateZ(26px); }
.card3d:hover .card3d__rings i:nth-child(2) { transform: translateZ(20px); transition-delay: .06s; }
.card3d:hover .card3d__rings i:nth-child(3) { transform: translateZ(14px); transition-delay: .12s; }

/* ---------- 通用区块 ---------- */

.section { margin-top: clamp(1.8rem, 5vw, 2.8rem); }

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

.section__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 3vw, 1.6rem);
}

.section__title small {
  display: block;
  font-family: var(--font);
  font-size: .84rem;
  font-weight: 400;
  color: var(--text-soft);
  letter-spacing: .04em;
}

.panel {
  padding: clamp(1.1rem, 3vw, 1.8rem);
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.empty {
  padding: 2.4rem 1rem;
  text-align: center;
  color: var(--text-soft);
}

.empty__icon { font-size: 2rem; display: block; margin-bottom: .5rem; opacity: .7; }

/* ---------- 点点滴滴 ---------- */

.toolbar {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.chips { display: flex; gap: .4rem; flex-wrap: wrap; }

.chip {
  padding: .28rem .75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-solid);
  font-size: .85rem;
  color: var(--text-soft);
  transition: all .25s ease;
}

.chip:hover { color: var(--accent-deep); border-color: var(--accent); }
.chip.is-active { color: #fff; background: linear-gradient(140deg, var(--accent), var(--accent-2)); border-color: transparent; }

.postlist {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: clamp(.9rem, 2vw, 1.3rem);
}

.post {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transform-style: preserve-3d;
  transition: transform .45s cubic-bezier(.2, .7, .3, 1), box-shadow .45s ease;
}

.post:hover {
  transform: perspective(900px) rotate3d(1, 1, 0, 7deg) translateY(-5px);
  box-shadow: var(--shadow);
}

.post__cover {
  height: 168px;
  background-size: cover;
  background-position: center;
  background-color: var(--accent-soft);
}

.post__body { padding: 1rem 1.1rem 1.2rem; }

.post__date {
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--accent-deep);
}

.post__title {
  margin: .25rem 0 .4rem;
  font-size: 1.1rem;
  line-height: 1.45;
}

.post__excerpt {
  margin: 0 0 .7rem;
  font-size: .9rem;
  color: var(--text-soft);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post__tags { display: flex; gap: .35rem; flex-wrap: wrap; }

.tag {
  font-size: .76rem;
  padding: .12rem .55rem;
  border-radius: 999px;
  color: var(--accent-deep);
  background: var(--accent-soft);
}

/* 文章详情 */

.article { max-width: 820px; margin: 0 auto; }

.article__head { text-align: center; margin-bottom: 1.6rem; }

.article__title {
  margin: .3rem 0 .5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4.4vw, 2.2rem);
  line-height: 1.35;
}

.article__meta {
  display: flex;
  gap: .8rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: .86rem;
  color: var(--text-soft);
}

.article__cover {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 1.4rem;
  box-shadow: var(--shadow);
}

.backlink {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-bottom: 1.2rem;
  padding: .34rem .9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: .88rem;
  color: var(--text-soft);
  background: var(--card-solid);
  transition: all .3s ease;
}

.backlink:hover { color: #fff; background: linear-gradient(140deg, var(--accent), var(--accent-2)); border-color: transparent; }

/* Markdown 正文 */

.md { font-size: 1.02rem; word-break: break-word; }
.md > *:first-child { margin-top: 0; }
.md h2, .md h3 {
  font-family: var(--font-serif);
  margin: 1.8rem 0 .6rem;
  line-height: 1.4;
}
.md h2 { font-size: 1.4rem; }
.md h3 { font-size: 1.16rem; }
.md p { margin: 0 0 1rem; }
.md a { color: var(--accent-deep); border-bottom: 1px solid currentColor; }
.md img { border-radius: 18px; margin: 1rem 0; box-shadow: var(--shadow-sm); }
.md ul, .md ol { padding-left: 1.4rem; margin: 0 0 1rem; }
.md li { margin: .3rem 0; }
.md blockquote {
  margin: 1rem 0;
  padding: .6rem 1rem;
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: var(--accent-soft);
  color: var(--text-soft);
}
.md code {
  padding: .12rem .4rem;
  border-radius: 6px;
  font-size: .9em;
  background: var(--accent-soft);
  font-family: ui-monospace, Menlo, Consolas, monospace;
}
.md pre {
  padding: 1rem 1.1rem;
  border-radius: 16px;
  overflow: auto;
  background: color-mix(in srgb, var(--text) 88%, transparent);
  color: var(--bg);
}
.md pre code { background: none; padding: 0; color: inherit; }
.md hr { border: none; border-top: 1px dashed var(--line); margin: 1.6rem 0; }

/* ---------- 恋爱事件 · 时间线 ---------- */

.timeline {
  position: relative;
  margin: 0 auto;
  padding-left: 2.1rem;
  max-width: 760px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: .4rem;
  bottom: .4rem;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--accent), transparent);
  opacity: .5;
}

.tl {
  position: relative;
  margin-bottom: 1.4rem;
  padding: 1.05rem 1.2rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform .4s ease, box-shadow .4s ease;
}

.tl:hover { transform: translateX(4px); box-shadow: var(--shadow); }

.tl::before {
  content: "";
  position: absolute;
  left: -2.1rem;
  top: 1.4rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 3px solid var(--bg);
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.tl__date {
  font-size: .82rem;
  letter-spacing: .05em;
  color: var(--accent-deep);
  font-variant-numeric: tabular-nums;
}

.tl__title { margin: .2rem 0 .3rem; font-size: 1.06rem; font-weight: 700; }
.tl__note { margin: 0; font-size: .92rem; color: var(--text-soft); white-space: pre-wrap; }
.tl__img { margin-top: .8rem; border-radius: 16px; box-shadow: var(--shadow-sm); }

/* ---------- 恋爱相册 ---------- */

.album { columns: 3 260px; column-gap: clamp(.7rem, 1.6vw, 1rem); }

.album__item {
  position: relative;
  break-inside: avoid;
  margin: 0 0 clamp(.7rem, 1.6vw, 1rem);
  border-radius: 20px;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--accent-soft);
  box-shadow: var(--shadow-sm);
}

.album__item img { width: 100%; transition: transform .7s cubic-bezier(.2, .7, .3, 1); }
.album__item:hover img { transform: scale(1.05); }

.album__cap {
  position: absolute;
  inset: auto 0 0;
  padding: 1.6rem .9rem .7rem;
  color: #fff;
  font-size: .86rem;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .62));
  opacity: 0;
  transform: translateY(8px);
  transition: all .4s ease;
}

.album__item:hover .album__cap { opacity: 1; transform: none; }
.album__cap i { display: block; font-size: .76rem; opacity: .82; font-style: normal; }

/* ---------- 留言板 ---------- */

.board__form { display: grid; gap: .7rem; }

.boardrow { display: flex; gap: .6rem; flex-wrap: wrap; }
.boardrow > * { flex: 1 1 160px; }

.field label {
  display: block;
  margin-bottom: .25rem;
  font-size: .82rem;
  color: var(--text-soft);
  letter-spacing: .04em;
}

.input, .textarea, .select {
  width: 100%;
  padding: .62rem .85rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card-solid);
  outline: none;
  transition: border-color .25s ease, box-shadow .25s ease;
}

.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.textarea { min-height: 96px; resize: vertical; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .6rem 1.3rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-solid);
  color: var(--text);
  font-size: .93rem;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}

.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn:active { transform: scale(.96); }

.btn--primary {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-sm);
}

.btn--ghost { background: transparent; }
.btn--danger { color: #d24545; border-color: rgba(210, 69, 69, .35); }
.btn--danger:hover { background: rgba(210, 69, 69, .1); }
.btn--sm { padding: .35rem .8rem; font-size: .84rem; }

.msglist { display: grid; gap: .8rem; margin-top: 1.4rem; }

.msg {
  display: flex;
  gap: .8rem;
  padding: .9rem 1rem;
  border-radius: 22px 22px 22px 8px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.msg--owner {
  background: linear-gradient(140deg, var(--accent-soft), transparent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.msg__avatar {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.msg__main { flex: 1; min-width: 0; }

.msg__head {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .2rem;
}

.msg__name { font-weight: 700; font-size: .95rem; }
.msg__badge {
  font-size: .7rem;
  padding: .02rem .45rem;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
}
.msg__time { font-size: .76rem; color: var(--text-soft); margin-left: auto; }
.msg__text { margin: 0; white-space: pre-wrap; word-break: break-word; }

/* ---------- 关于我们 ---------- */

.about__cover {
  height: clamp(150px, 30vw, 260px);
  border-radius: var(--radius-lg);
  background-size: cover;
  background-position: center;
  background-color: var(--accent-soft);
  box-shadow: var(--shadow);
  margin-bottom: 1.4rem;
}

.chat {
  display: grid;
  gap: .9rem;
  max-width: 640px;
  margin: 0 auto;
}

.chat__row { display: flex; gap: .6rem; align-items: flex-end; }
.chat__row--me { flex-direction: row-reverse; }

.chat__face {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: .82rem;
  box-shadow: var(--shadow-sm);
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
}

.chat__row--me .chat__face { background: linear-gradient(140deg, var(--accent-2), var(--accent)); }

.chat__bubble {
  max-width: 76%;
  padding: .62rem .95rem;
  border-radius: 20px 20px 20px 6px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  white-space: pre-wrap;
  opacity: 0;
  transform: translateY(10px) scale(.98);
  animation: bubbleIn .5s ease forwards;
}

.chat__row--me .chat__bubble {
  border-radius: 20px 20px 6px 20px;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  color: #fff;
  border-color: transparent;
}

@keyframes bubbleIn {
  to { opacity: 1; transform: none; }
}

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .8rem;
  margin-top: 1.8rem;
}

.fact {
  padding: .9rem 1rem;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.fact k { display: block; font-size: .8rem; color: var(--text-soft); letter-spacing: .05em; }
.fact v { font-weight: 700; }

/* ---------- 后台 ---------- */

.admin { max-width: 980px; margin: 0 auto; }

.login {
  max-width: 380px;
  margin: 3rem auto;
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  text-align: center;
}

.login h2 { margin: 0 0 .3rem; font-family: var(--font-serif); }
.login p { margin: 0 0 1.2rem; color: var(--text-soft); font-size: .88rem; }
.login .field { text-align: left; margin-bottom: .8rem; }

.tabs {
  display: flex;
  gap: .35rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.tab {
  padding: .42rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-solid);
  font-size: .9rem;
  color: var(--text-soft);
  transition: all .25s ease;
}

.tab.is-active { color: #fff; background: linear-gradient(140deg, var(--accent), var(--accent-2)); border-color: transparent; }

.formgrid { display: grid; gap: .9rem; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: .9rem; }

.rowcard {
  padding: .9rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--card-solid);
  margin-bottom: .8rem;
}

.rowcard__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  margin-bottom: .6rem;
}

.rowcard__title { font-weight: 700; }
.rowcard__tools { display: flex; gap: .35rem; }

.thumb {
  width: 76px;
  height: 76px;
  border-radius: 14px;
  object-fit: cover;
  background: var(--accent-soft);
  border: 1px solid var(--line);
}

.thumb--wide { width: 130px; height: 76px; }

.uploadrow { display: flex; align-items: center; gap: .7rem; flex-wrap: wrap; }

.hint { font-size: .8rem; color: var(--text-soft); }

.adminbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.adminbar__state { font-size: .85rem; color: var(--text-soft); }

/* ---------- 灯箱 / 提示 / 音乐 ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  grid-template-columns: 60px 1fr 60px;
  align-items: center;
  background: rgba(12, 10, 18, .86);
  backdrop-filter: blur(10px);
  animation: viewIn .3s ease both;
}

.lightbox__figure { margin: 0; text-align: center; }

.lightbox__img {
  max-width: min(100%, 1100px);
  max-height: 78vh;
  margin: 0 auto;
  border-radius: 16px;
  box-shadow: 0 30px 70px -30px #000;
}

.lightbox__cap { margin-top: .8rem; color: #fff; font-size: .9rem; opacity: .9; }
.lightbox__cap i { display: block; font-size: .78rem; opacity: .7; font-style: normal; }

.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .3);
  background: rgba(255, 255, 255, .12);
  color: #fff;
}

.lightbox__nav {
  width: 46px;
  height: 46px;
  justify-self: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .3);
  background: rgba(255, 255, 255, .12);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
}

.lightbox__nav:hover, .lightbox__close:hover { background: rgba(255, 255, 255, .26); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 2.2rem;
  z-index: 95;
  transform: translateX(-50%);
  padding: .7rem 1.3rem;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
  animation: toastIn .35s ease both;
}

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.music {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 60;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: #fff;
  font-size: 1.1rem;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}

.music.is-playing { animation: spin 6s linear infinite; }

/* ---------- 响应式 ---------- */

@media (max-width: 860px) {
  .iconbtn { display: block; }

  .topnav {
    position: fixed;
    left: 0;
    right: 0;
    top: 56px;
    flex-direction: column;
    gap: .2rem;
    margin: 0;
    padding: .8rem;
    background: var(--card-solid);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-130%);
    transition: transform .4s cubic-bezier(.2, .7, .3, 1);
  }

  .topnav.is-open { transform: none; }
  .topnav a { padding: .6rem .8rem; border-radius: 14px; }
  .album { columns: 2 150px; }
}

@media (max-width: 560px) {
  .counter__grid { gap: .4rem; }
  .album { columns: 2 120px; }
  .lightbox { grid-template-columns: 44px 1fr 44px; }
  .lightbox__nav { width: 38px; height: 38px; font-size: 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}