/* ==========================================================================
   瓷韵千年 · 中华瓷文化数字长卷
   视觉体系：宣纸 · 玄墨 · 朱砂 · 青瓷 · 描金
   ========================================================================== */

:root {
  --paper:      #F7F3E9;
  --paper-2:    #F1EADC;
  --paper-3:    #EAE0CD;
  --ink:        #1F1B16;
  --ink-2:      #3E362D;
  --ink-3:      #6B6154;
  --ink-4:      #9A9081;
  --cinnabar:   #B33A2E;
  --cinnabar-2: #96291F;
  --celadon:    #6E9C8E;
  --celadon-2:  #4E7A6D;
  --gold:       #BFA06A;
  --gold-2:     #9C7C46;
  --line:       rgba(31, 27, 22, .14);
  --line-2:     rgba(31, 27, 22, .07);
  --shadow-s:   0 1px 2px rgba(31,27,22,.06), 0 4px 12px rgba(31,27,22,.05);
  --shadow-m:   0 2px 6px rgba(31,27,22,.08), 0 12px 32px rgba(31,27,22,.08);
  --shadow-l:   0 6px 18px rgba(31,27,22,.12), 0 24px 60px rgba(31,27,22,.14);
  --r: 4px;
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", "Source Han Serif SC", serif;
  --kai:   "Kaiti SC", "STKaiti", "KaiTi", "Songti SC", serif;
  --sans:  "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--serif);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  font-size: 16px;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(rgba(31,27,22,.035) 1px, transparent 1px),
    radial-gradient(rgba(31,27,22,.025) 1px, transparent 1px);
  background-size: 22px 22px, 13px 13px;
  background-position: 0 0, 7px 7px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: rgba(179,58,46,.18); }

/* ---------- 通用容器 ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; position: relative; z-index: 1; }
.main { position: relative; z-index: 1; padding-bottom: 90px; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(247,243,233,.92);
  backdrop-filter: blur(10px) saturate(1.2);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 22px;
  height: 62px; display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-seal {
  width: 34px; height: 34px; border-radius: 3px;
  background: var(--cinnabar); color: #FBF6EC;
  display: grid; place-items: center;
  font-size: 17px; font-weight: 700; letter-spacing: -1px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.35), var(--shadow-s);
}
.brand-txt { font-size: 19px; font-weight: 700; letter-spacing: 3px; }
.brand-sub { font-size: 10px; letter-spacing: 2px; color: var(--ink-4); display: block; line-height: 1; margin-top: 2px; }
.nav-links { display: flex; gap: 2px; margin-left: auto; align-items: center; }
.nav-links a {
  position: relative; padding: 7px 11px; font-size: 14.5px; letter-spacing: 1.5px;
  color: var(--ink-2); border-radius: 3px; transition: color .25s, background .25s;
  white-space: nowrap;
}
.nav-links a::after {
  content: ""; position: absolute; left: 11px; right: 11px; bottom: 3px; height: 2px;
  background: var(--cinnabar); transform: scaleX(0); transform-origin: left;
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}
.nav-links a:hover { color: var(--cinnabar); }
.nav-links a:hover::after, .nav-links a.on::after { transform: scaleX(1); }
.nav-links a.on { color: var(--cinnabar); font-weight: 700; }
.nav-toggle { display: none; font-size: 22px; padding: 4px 8px; }

@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: 62px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 8px 12px 16px; box-shadow: var(--shadow-m);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: .28s ease; max-height: calc(100vh - 62px); overflow-y: auto;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 12px 10px; border-bottom: 1px solid var(--line-2); font-size: 16px; }
  .nav-toggle { display: block; margin-left: auto; }
}

/* ---------- 卷首 / 页面题头 ---------- */
.hero {
  position: relative; padding: 84px 0 66px; overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-inner { position: relative; z-index: 2; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12.5px; letter-spacing: 4px; color: var(--gold-2);
  text-transform: uppercase; margin-bottom: 20px;
}
.hero-kicker::before { content: ""; width: 30px; height: 1px; background: var(--gold); }
.hero h1 {
  font-size: clamp(34px, 6.4vw, 62px); line-height: 1.16; margin: 0 0 18px;
  letter-spacing: 6px; font-weight: 700;
}
.hero h1 em { font-style: normal; color: var(--cinnabar); }
.hero p.lead {
  font-size: clamp(14.5px, 1.9vw, 17px); color: var(--ink-3);
  max-width: 660px; margin: 0; line-height: 2.05;
}
.hero-seal {
  position: absolute; right: 22px; top: 70px;
  width: 92px; height: 92px; border: 2px solid var(--cinnabar);
  border-radius: 4px; color: var(--cinnabar); background: rgba(179,58,46,.05);
  display: grid; place-items: center; text-align: center;
  font-size: 19px; line-height: 1.15; letter-spacing: 1px; font-weight: 700;
  padding: 8px; transform: rotate(-4deg); opacity: .9;
}
.hero-seal small { display: block; font-size: 10px; letter-spacing: 1px; font-weight: 400; margin-top: 4px; opacity: .8; }
@media (max-width: 760px) { .hero-seal { display: none; } .hero { padding: 56px 0 44px; } }

/* 装饰：云纹分隔 */
.sep-cloud { height: 26px; margin: 34px 0; position: relative; opacity: .5; }
.sep-cloud::before, .sep-cloud::after {
  content: ""; position: absolute; top: 50%; height: 1px; width: calc(50% - 26px);
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.sep-cloud::before { left: 0; } .sep-cloud::after { right: 0; }
.sep-cloud span {
  position: absolute; left: 50%; top: 50%; width: 34px; height: 12px; margin: -6px 0 0 -17px;
  border: 1px solid var(--gold); border-radius: 12px 12px 0 0; border-bottom: none;
}

/* ---------- 区块标题 ---------- */
.sec { margin: 62px 0; }
.sec-head { display: flex; align-items: flex-end; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.sec-head h2 {
  font-size: clamp(21px, 3vw, 27px); margin: 0; letter-spacing: 4px; font-weight: 700;
  display: flex; align-items: center; gap: 12px;
}
.sec-head h2::before {
  content: ""; width: 5px; height: 22px; background: var(--cinnabar); border-radius: 1px;
  box-shadow: 0 0 0 3px rgba(179,58,46,.12);
}
.sec-head .sub { font-size: 13px; color: var(--ink-4); letter-spacing: 2px; }
.sec-head .more { margin-left: auto; font-size: 13.5px; color: var(--cinnabar); letter-spacing: 1px; }
.sec-head .more:hover { opacity: .75; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: 3px; font-size: 15px; letter-spacing: 2px;
  background: var(--ink); color: var(--paper); transition: .25s;
  box-shadow: var(--shadow-s); font-family: var(--serif);
}
.btn:hover { background: var(--cinnabar); transform: translateY(-1px); box-shadow: var(--shadow-m); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }
.btn.sm { padding: 7px 15px; font-size: 13.5px; }

/* ---------- 卡片通用 ---------- */
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .g4 { grid-template-columns: repeat(3, 1fr); } .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .g4, .g3, .g2 { grid-template-columns: repeat(2, 1fr); } }

.card {
  background: linear-gradient(180deg, #FFFDF8, var(--paper-2));
  border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: var(--shadow-s); overflow: hidden; transition: .3s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); border-color: rgba(179,58,46,.3); }
.card .thumb { position: relative; background: #EFE8DA; overflow: hidden; }
.card .thumb img { width: 100%; aspect-ratio: 3/4; object-fit: cover; transition: transform .6s cubic-bezier(.4,0,.2,1); }
.card:hover .thumb img { transform: scale(1.045); }
.card .thumb.wide img { aspect-ratio: 4/3; }
.card .body { padding: 13px 14px 15px; }
.card .t { font-size: 16px; font-weight: 700; letter-spacing: 1.5px; margin: 0 0 4px; }
.card .s { font-size: 12.5px; color: var(--ink-4); letter-spacing: .5px; line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .tag {
  position: absolute; left: 0; top: 0; z-index: 2;
  background: rgba(31,27,22,.82); color: var(--paper);
  font-size: 11px; letter-spacing: 2px; padding: 4px 10px 4px 8px;
  border-radius: 0 0 4px 0; backdrop-filter: blur(4px);
}
.card.noimg .body { padding: 16px; }

/* ---------- 引入动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s cubic-bezier(.2,.7,.3,1), transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes sealDrop {
  0% { opacity: 0; transform: rotate(-14deg) scale(1.5); }
  60% { opacity: 1; transform: rotate(-4deg) scale(.96); }
  100% { opacity: 1; transform: rotate(-4deg) scale(1); }
}

/* ---------- 首页：窑火开卷 ---------- */
.kiln {
  position: relative; min-height: calc(100vh - 62px);
  display: flex; align-items: center; overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.kiln-glow {
  position: absolute; left: 50%; bottom: -18%; width: 130%; height: 78%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 100%,
    rgba(179,58,46,.28) 0%, rgba(191,160,106,.20) 26%,
    rgba(110,156,142,.12) 48%, rgba(247,243,233,0) 72%);
  filter: blur(8px); animation: glow 7s ease-in-out infinite alternate;
}
@keyframes glow { from { opacity: .68; transform: translateX(-50%) scaleY(.94); } to { opacity: 1; transform: translateX(-50%) scaleY(1.06); } }
.kiln-inner { position: relative; z-index: 3; display: flex; align-items: center; gap: 46px; width: 100%; padding: 40px 0; }
.kiln-txt { flex: 1 1 460px; min-width: 0; }
.kiln-txt h1 {
  font-size: clamp(38px, 7.4vw, 76px); line-height: 1.1; margin: 0 0 6px;
  letter-spacing: 10px; animation: fadeUp 1s .15s both;
}
.kiln-txt .en {
  font-size: clamp(11px, 1.4vw, 13px); letter-spacing: 7px; color: var(--gold-2);
  margin-bottom: 26px; animation: fadeUp 1s .3s both; text-transform: uppercase;
}
.kiln-txt .desc {
  font-size: clamp(14.5px, 1.9vw, 17px); color: var(--ink-3); line-height: 2.15;
  max-width: 540px; margin: 0 0 32px; animation: fadeUp 1s .45s both;
}
.kiln-actions { display: flex; gap: 12px; flex-wrap: wrap; animation: fadeUp 1s .6s both; }
.kiln-seal {
  position: absolute; right: 0; top: 0;
  animation: sealDrop .9s 1.5s both;
}
.kiln-art {
  flex: 0 0 300px; display: grid; place-items: center;
  animation: fadeIn 2s .2s both;
}
@media (max-width: 860px) {
  .kiln-inner { flex-direction: column-reverse; gap: 12px; padding: 24px 0 40px; }
  .kiln-art { flex: none; width: 210px; }
  .kiln-txt { text-align: center; }
  .kiln-txt .kiln-actions { justify-content: center; }
  .kiln-txt .desc { margin-left: auto; margin-right: auto; }
  .kiln-seal { display: none; }
}

/* 首页导航九宫 */
.hall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .hall { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .hall { grid-template-columns: 1fr; } }
.hall-card {
  position: relative; padding: 24px 22px; border: 1px solid var(--line);
  border-radius: var(--r); background: linear-gradient(160deg, #FFFDF8, var(--paper-2));
  transition: .35s cubic-bezier(.4,0,.2,1); overflow: hidden; display: block;
}
.hall-card::after {
  content: ""; position: absolute; right: -30px; bottom: -30px; width: 110px; height: 110px;
  border: 1px solid var(--line); border-radius: 50%; transition: .5s;
}
.hall-card:hover { border-color: var(--cinnabar); transform: translateY(-4px); box-shadow: var(--shadow-m); }
.hall-card:hover::after { transform: scale(1.35); border-color: rgba(179,58,46,.28); }
.hall-card .no { font-size: 12px; letter-spacing: 3px; color: var(--gold-2); }
.hall-card h3 { margin: 8px 0 6px; font-size: 20px; letter-spacing: 3px; font-weight: 700; }
.hall-card p { margin: 0; font-size: 13.5px; color: var(--ink-4); line-height: 1.9; }
.hall-card .arrow { position: absolute; right: 20px; top: 24px; color: var(--cinnabar); opacity: 0; transform: translateX(-6px); transition: .3s; }
.hall-card:hover .arrow { opacity: 1; transform: none; }

/* ---------- 统计条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--paper-2); }
.stats div { padding: 20px 14px; text-align: center; border-right: 1px solid var(--line-2); }
.stats div:last-child { border-right: none; }
.stats b { display: block; font-size: clamp(24px, 4vw, 34px); color: var(--cinnabar); letter-spacing: 1px; line-height: 1.2; }
.stats span { font-size: 12.5px; color: var(--ink-4); letter-spacing: 2px; }
@media (max-width: 620px) { .stats { grid-template-columns: repeat(2, 1fr); } .stats div:nth-child(2) { border-right: none; } .stats div:nth-child(-n+2) { border-bottom: 1px solid var(--line-2); } }

/* ---------- 筛选条 ---------- */
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 24px; }
.chip {
  padding: 6px 15px; border-radius: 20px; font-size: 14px; letter-spacing: 1px;
  border: 1px solid var(--line); color: var(--ink-2); background: #FFFDF8; transition: .22s;
}
.chip:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.chip.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chip .n { font-size: 11px; opacity: .6; margin-left: 4px; }
.search {
  margin-left: auto; display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 20px; padding: 6px 15px; background: #FFFDF8;
}
.search input { border: none; outline: none; background: none; font-family: var(--serif); font-size: 14.5px; width: 150px; color: var(--ink); }
@media (max-width: 620px) { .search { margin-left: 0; width: 100%; } .search input { width: 100%; } }

/* ---------- 详情弹层 ---------- */
.modal {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(24,20,16,.62); backdrop-filter: blur(5px);
  padding: 30px 16px; overflow-y: auto;
}
.modal.open { display: block; animation: fadeIn .25s; }
.modal-box {
  max-width: 880px; margin: 0 auto; background: var(--paper);
  border-radius: 6px; box-shadow: var(--shadow-l); overflow: hidden;
  animation: fadeUp .4s cubic-bezier(.2,.7,.3,1); position: relative;
}
.modal-close {
  position: absolute; right: 12px; top: 12px; z-index: 5;
  width: 34px; height: 34px; border-radius: 50%; background: rgba(31,27,22,.6);
  color: #fff; font-size: 19px; display: grid; place-items: center; backdrop-filter: blur(4px);
}
.modal-close:hover { background: var(--cinnabar); }
.mb-split { display: grid; grid-template-columns: 300px 1fr; gap: 0; }
@media (max-width: 720px) { .mb-split { grid-template-columns: 1fr; } }
.mb-img { background: #EDE6D8; display: grid; place-items: center; padding: 14px; }
.mb-img img { max-height: 62vh; width: auto; border-radius: 3px; box-shadow: var(--shadow-s); }
.mb-txt { padding: 28px 30px 32px; }
.mb-txt .cat { font-size: 12px; letter-spacing: 3px; color: var(--gold-2); }
.mb-txt h3 { font-size: 27px; margin: 6px 0 4px; letter-spacing: 4px; }
.mb-txt .cap { font-size: 13.5px; color: var(--cinnabar); letter-spacing: 1px; margin-bottom: 16px; }
.mb-txt .desc { font-size: 15px; color: var(--ink-2); line-height: 2.1; text-align: justify; }
.modal-loading { padding: 60px; text-align: center; color: var(--ink-4); letter-spacing: 2px; }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 300; display: none;
  background: rgba(18,15,12,.94); padding: 26px;
  align-items: center; justify-content: center; flex-direction: column; gap: 14px;
}
.lightbox.open { display: flex; animation: fadeIn .22s; }
.lightbox img { max-width: 96vw; max-height: 84vh; object-fit: contain; border-radius: 3px; }
.lightbox .lb-cap { color: rgba(247,243,233,.8); font-size: 13.5px; letter-spacing: 2px; }
.lightbox .lb-close { position: absolute; right: 20px; top: 16px; color: #fff; font-size: 30px; opacity: .8; }

/* ---------- 朝代时间轴 ---------- */
.era-nav { display: flex; gap: 0; overflow-x: auto; padding-bottom: 6px; margin-bottom: 30px; position: sticky; top: 62px; z-index: 40; background: var(--paper); }
.era-nav::-webkit-scrollbar { height: 4px; }
.era-nav::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }
.era-nav button {
  padding: 10px 18px; font-size: 15px; letter-spacing: 2px; color: var(--ink-3);
  border-bottom: 2px solid transparent; white-space: nowrap; transition: .22s; font-family: var(--serif);
}
.era-nav button:hover { color: var(--ink); }
.era-nav button.on { color: var(--cinnabar); border-bottom-color: var(--cinnabar); font-weight: 700; }

.era-body { animation: fadeUp .55s; }
.era-top { display: grid; grid-template-columns: 1.35fr 1fr; gap: 34px; align-items: start; }
@media (max-width: 860px) { .era-top { grid-template-columns: 1fr; gap: 22px; } }
.era-title { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.era-title b { font-size: clamp(30px, 5vw, 44px); letter-spacing: 6px; }
.era-title span { font-size: 13.5px; color: var(--ink-4); letter-spacing: 2px; }
.era-intro { font-size: 15.5px; line-height: 2.15; color: var(--ink-2); text-align: justify; margin: 0 0 20px; }
.era-poem {
  border-left: 3px solid var(--cinnabar); padding: 8px 0 8px 16px;
  font-family: var(--kai); font-size: 17px; color: var(--cinnabar); letter-spacing: 2px;
}
.kv { display: grid; grid-template-columns: 84px 1fr; gap: 8px 12px; font-size: 14px; }
.kv dt { color: var(--ink-4); letter-spacing: 2px; }
.kv dd { margin: 0; color: var(--ink-2); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags i {
  font-style: normal; font-size: 12.5px; padding: 3px 10px; border-radius: 3px;
  background: rgba(110,156,142,.13); color: var(--celadon-2); letter-spacing: .5px;
}
.tags i.c { background: rgba(179,58,46,.1); color: var(--cinnabar-2); }
.points { list-style: none; padding: 0; margin: 0; counter-reset: p; }
.points li {
  position: relative; padding: 11px 0 11px 34px; font-size: 14.6px; line-height: 2;
  color: var(--ink-2); border-bottom: 1px dashed var(--line-2); text-align: justify;
}
.points li:last-child { border-bottom: none; }
.points li::before {
  counter-increment: p; content: counter(p, decimal-leading-zero);
  position: absolute; left: 0; top: 12px; font-size: 11.5px; letter-spacing: 1px;
  color: var(--cinnabar); border: 1px solid rgba(179,58,46,.28); border-radius: 2px;
  padding: 1px 4px; line-height: 1.4; background: rgba(179,58,46,.05);
}
.sub-list { display: grid; gap: 14px; }
.sub-item { border: 1px solid var(--line); border-radius: var(--r); background: #FFFDF8; overflow: hidden; }
.sub-item > summary {
  list-style: none; cursor: pointer; padding: 14px 18px; display: flex; align-items: center; gap: 12px;
  transition: .2s;
}
.sub-item > summary::-webkit-details-marker { display: none; }
.sub-item > summary:hover { background: rgba(110,156,142,.06); }
.sub-item > summary .nm { font-size: 17px; letter-spacing: 3px; font-weight: 700; }
.sub-item > summary .pd { font-size: 12.5px; color: var(--ink-4); letter-spacing: 1px; }
.sub-item > summary .ar { margin-left: auto; color: var(--gold); transition: .3s; }
.sub-item[open] > summary .ar { transform: rotate(90deg); }
.sub-item[open] > summary { border-bottom: 1px solid var(--line-2); background: rgba(110,156,142,.06); }
.sub-item .inner { padding: 6px 18px 16px; }

/* ---------- 口诀 / 诵读 ---------- */
.verse { display: grid; gap: 10px; }
.verse .ln {
  display: flex; align-items: baseline; gap: 14px; padding: 9px 14px; border-radius: 3px;
  background: #FFFDF8; border: 1px solid var(--line-2); transition: .3s;
  font-family: var(--kai); font-size: clamp(15px, 2.1vw, 18px); letter-spacing: 2.5px; color: var(--ink-2);
}
.verse .ln .idx { font-family: var(--sans); font-size: 11px; color: var(--ink-4); letter-spacing: 0; min-width: 20px; }
.verse .ln.hi { background: rgba(179,58,46,.07); border-color: rgba(179,58,46,.3); color: var(--cinnabar); transform: translateX(4px); }
.verse.playing .ln { opacity: .45; }
.verse.playing .ln.hi { opacity: 1; }

/* ---------- 折叠面板 ---------- */
.acc { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #FFFDF8; }
.acc details { border-bottom: 1px solid var(--line-2); }
.acc details:last-child { border-bottom: none; }
.acc summary {
  list-style: none; cursor: pointer; padding: 15px 20px; display: flex; align-items: center; gap: 12px;
  font-size: 16px; letter-spacing: 2px; transition: .2s;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary:hover { background: rgba(191,160,106,.08); }
.acc summary .k {
  width: 26px; height: 26px; border-radius: 3px; background: var(--cinnabar); color: #FBF6EC;
  display: grid; place-items: center; font-size: 13px; flex-shrink: 0;
}
.acc summary .plus { margin-left: auto; color: var(--gold); transition: .3s; font-size: 18px; }
.acc details[open] summary { background: rgba(191,160,106,.08); font-weight: 700; }
.acc details[open] .plus { transform: rotate(45deg); }
.acc .c { padding: 4px 20px 20px; }

/* ---------- 术语卡（翻面） ---------- */
.flip { perspective: 1000px; height: 148px; cursor: pointer; }
.flip-in { position: relative; width: 100%; height: 100%; transition: transform .7s cubic-bezier(.4,0,.2,1); transform-style: preserve-3d; }
.flip.on .flip-in { transform: rotateY(180deg); }
.flip-f, .flip-b {
  position: absolute; inset: 0; backface-visibility: hidden; border-radius: var(--r);
  display: flex; flex-direction: column; justify-content: center; padding: 18px;
  border: 1px solid var(--line);
}
.flip-f { background: linear-gradient(160deg, #FFFDF8, var(--paper-2)); align-items: center; text-align: center; }
.flip-f b { font-size: 21px; letter-spacing: 4px; }
.flip-f span { font-size: 11.5px; color: var(--ink-4); letter-spacing: 2px; margin-top: 8px; }
.flip-b { background: var(--ink); color: #EDE6D8; transform: rotateY(180deg); font-size: 13px; line-height: 1.95; overflow-y: auto; }

/* ---------- 图集 / 瀑布 ---------- */
.masonry { columns: 4 200px; column-gap: 14px; }
.masonry figure {
  margin: 0 0 14px; break-inside: avoid; border-radius: var(--r); overflow: hidden;
  box-shadow: var(--shadow-s); border: 1px solid var(--line); cursor: zoom-in;
  transition: .3s; position: relative; background: #EFE8DA;
}
.masonry figure:hover { box-shadow: var(--shadow-m); transform: translateY(-2px); }
.masonry figure img { width: 100%; }
.masonry figure figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 12px 9px;
  background: linear-gradient(transparent, rgba(20,17,13,.78)); color: #F7F3E9;
  font-size: 12px; letter-spacing: 1px; opacity: 0; transition: .3s;
}
.masonry figure:hover figcaption { opacity: 1; }

/* ---------- 千年窑火 · 世界标签页 / 口诀小标题 ---------- */
.kj-era { font-size: 15px; letter-spacing: 3px; color: var(--celadon-2, #4f7a68); margin: 18px 0 10px; font-weight: 700; }
.kj-era:first-child { margin-top: 0; }
.sub-h { font-size: 15px; letter-spacing: 2px; color: var(--ink-2); margin: 22px 0 10px; font-weight: 700; border-left: 4px solid var(--cinnabar); padding-left: 10px; }
.world-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(218px, 1fr)); gap: 14px; }
.wcard { border: 1px solid var(--line); border-radius: var(--r, 10px); background: #FFFDF8; padding: 14px 16px; font-size: 13.5px; line-height: 1.95; color: var(--ink-2); text-align: justify; }
.wcard .wimg { margin: -14px -16px 10px; border-radius: var(--r, 10px) var(--r, 10px) 0 0; overflow: hidden; cursor: zoom-in; background: var(--paper-2, #f3ece0); }
.wcard .wimg img { display: block; width: 100%; height: 148px; object-fit: cover; }
.wcard .wtxt { display: flex; gap: 9px; align-items: flex-start; }
.wcard .wicon { flex: 0 0 auto; font-size: 18px; line-height: 1.5; }
.wnote { margin-top: 14px; padding: 12px 14px; background: rgba(110,156,142,.09); border-left: 3px solid var(--celadon, #6e9c8e); border-radius: 4px; font-size: 13.5px; color: var(--ink-2); line-height: 1.95; }
@media (max-width: 560px) { .world-grid { grid-template-columns: 1fr 1fr; } .wcard .wimg img { height: 110px; } }

/* ---------- 藏瓷（在线检索） ---------- */
.api-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 20px; }
.api-bar input[type=text] {
  flex: 1 1 260px; padding: 11px 16px; border: 1px solid var(--line); border-radius: 3px;
  font-family: var(--serif); font-size: 15px; background: #FFFDF8; color: var(--ink); outline: none;
}
.api-bar input[type=text]:focus { border-color: var(--cinnabar); }
.api-hint { font-size: 12.5px; color: var(--ink-4); letter-spacing: 1px; margin-bottom: 22px; }
.met-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(216px, 1fr)); gap: 16px; }
.met-card {
  background: #FFFDF8; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
  box-shadow: var(--shadow-s); transition: .3s; display: flex; flex-direction: column;
}
.met-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); border-color: rgba(179,58,46,.3); }
.met-card .ph { background: #EFE8DA; aspect-ratio: 1/1; display: grid; place-items: center; overflow: hidden; }
.met-card .ph img { width: 100%; height: 100%; object-fit: cover; }
.met-card .in { padding: 12px 13px 14px; flex: 1; display: flex; flex-direction: column; }
.met-card .in b { font-size: 14.5px; line-height: 1.55; letter-spacing: .5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.met-card .in small { font-size: 12px; color: var(--ink-4); margin-top: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.met-card .in .go { margin-top: auto; padding-top: 10px; font-size: 12px; color: var(--cinnabar); letter-spacing: 1px; }
.met-card .in b .en-s { display: block; font-size: 11px; color: var(--ink-4); letter-spacing: .5px; font-weight: 400; margin-top: 3px; line-height: 1.5; }
.skeleton { background: linear-gradient(90deg, #EFE8DA 25%, #F6F1E6 37%, #EFE8DA 63%); background-size: 400% 100%; animation: sk 1.4s ease infinite; border-radius: var(--r); height: 260px; }
@keyframes sk { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* ---------- 测验 ---------- */
.quiz-shell { max-width: 760px; margin: 0 auto; }
.quiz-hd { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.qbar { flex: 1; height: 5px; background: var(--paper-3); border-radius: 3px; overflow: hidden; }
.qbar i { display: block; height: 100%; background: linear-gradient(90deg, var(--celadon), var(--cinnabar)); width: 0; transition: width .45s; border-radius: 3px; }
.qcard { background: #FFFDF8; border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow-m); overflow: hidden; }
.qcard .qh { padding: 22px 26px 0; }
.qcard .qh .qt { font-size: 12px; letter-spacing: 3px; color: var(--gold-2); }
.qcard .qh h3 { font-size: clamp(18px, 2.6vw, 22px); margin: 8px 0 0; line-height: 1.7; letter-spacing: 1px; font-weight: 700; }
.qcard .qimg { padding: 18px 26px 0; }
.qcard .qimg img { max-height: 300px; width: auto; margin: 0 auto; border-radius: 3px; box-shadow: var(--shadow-s); }
.opts { padding: 20px 26px 26px; display: grid; gap: 10px; }
.opt {
  display: flex; align-items: center; gap: 13px; padding: 13px 17px; border: 1px solid var(--line);
  border-radius: 3px; background: var(--paper-2); transition: .22s; font-size: 15.5px; letter-spacing: .5px;
  text-align: left; width: 100%;
}
.opt:hover:not(:disabled) { border-color: var(--cinnabar); background: rgba(179,58,46,.05); transform: translateX(3px); }
.opt .k {
  width: 24px; height: 24px; border-radius: 3px; border: 1px solid var(--line);
  display: grid; place-items: center; font-size: 13px; flex-shrink: 0; background: #FFFDF8;
}
.opt.right { border-color: var(--celadon); background: rgba(110,156,142,.12); }
.opt.right .k { background: var(--celadon); color: #fff; border-color: var(--celadon); }
.opt.wrong { border-color: var(--cinnabar); background: rgba(179,58,46,.09); }
.opt.wrong .k { background: var(--cinnabar); color: #fff; border-color: var(--cinnabar); }
.opt:disabled { cursor: default; }
.qfoot { padding: 0 26px 26px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.qexplain { font-size: 14px; color: var(--ink-2); line-height: 2; background: rgba(191,160,106,.1); border-left: 3px solid var(--gold); padding: 12px 16px; border-radius: 0 3px 3px 0; margin-bottom: 16px; }
.score-big { font-size: 62px; color: var(--cinnabar); line-height: 1; letter-spacing: 2px; }
.rank { display: inline-block; padding: 5px 16px; border-radius: 3px; background: var(--ink); color: var(--paper); letter-spacing: 4px; font-size: 15px; margin-top: 12px; }

/* ---------- 书房 ---------- */
.book-shell { display: grid; grid-template-columns: 232px 1fr; gap: 30px; align-items: start; }
@media (max-width: 860px) { .book-shell { grid-template-columns: 1fr; gap: 16px; } }
.toc { position: sticky; top: 82px; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #FFFDF8; max-height: 74vh; overflow-y: auto; }
@media (max-width: 860px) { .toc { position: static; max-height: none; } }
.toc h4 { margin: 0; padding: 13px 16px; font-size: 13px; letter-spacing: 3px; color: var(--ink-4); border-bottom: 1px solid var(--line-2); background: var(--paper-2); }
.toc a { display: block; padding: 10px 16px; font-size: 14.5px; letter-spacing: 1px; border-bottom: 1px solid var(--line-2); transition: .2s; color: var(--ink-2); }
.toc a:hover { background: rgba(179,58,46,.05); color: var(--cinnabar); padding-left: 20px; }
.toc a.on { color: var(--cinnabar); font-weight: 700; background: rgba(179,58,46,.07); border-left: 3px solid var(--cinnabar); }
.article { background: #FFFDF8; border: 1px solid var(--line); border-radius: var(--r); padding: 34px 40px 46px; box-shadow: var(--shadow-s); }
@media (max-width: 620px) { .article { padding: 22px 18px 30px; } }
.article h2 { font-size: 25px; letter-spacing: 5px; margin: 0 0 22px; padding-bottom: 14px; border-bottom: 2px solid var(--line); }
.article p { font-size: 16.5px; line-height: 2.25; text-align: justify; margin: 0 0 15px; text-indent: 2em; color: var(--ink-2); font-family: var(--serif); }

/* ---------- 页脚 ---------- */
.foot { border-top: 1px solid var(--line); background: var(--paper-2); padding: 40px 0 46px; margin-top: 70px; position: relative; z-index: 1; }
.foot-inner { display: flex; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
.foot h5 { margin: 0 0 10px; font-size: 14px; letter-spacing: 3px; color: var(--ink-2); }
.foot p, .foot a { font-size: 13px; color: var(--ink-4); line-height: 2; }
.foot a:hover { color: var(--cinnabar); }
.foot .credit { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line-2); font-size: 12.5px; color: var(--ink-4); display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; letter-spacing: 1px; }

/* ---------- 回到顶部 ---------- */
.totop {
  position: fixed; right: 20px; bottom: 24px; z-index: 90;
  width: 44px; height: 44px; border-radius: 50%; background: var(--ink); color: var(--paper);
  display: grid; place-items: center; box-shadow: var(--shadow-m); font-size: 17px;
  opacity: 0; pointer-events: none; transition: .3s;
}
.totop.show { opacity: 1; pointer-events: auto; }
.totop:hover { background: var(--cinnabar); }

/* ---------- 印章角标 ---------- */
.stamp {
  display: inline-grid; place-items: center; width: 44px; height: 44px;
  border: 1.5px solid var(--cinnabar); border-radius: 3px; color: var(--cinnabar);
  font-size: 12px; line-height: 1.05; letter-spacing: 0; padding: 4px; text-align: center;
  background: rgba(179,58,46,.05); transform: rotate(-3deg);
}

/* ---------- 动效降级（无障碍 / 打印 / 截图） ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-delay: 0ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .kiln-txt h1, .kiln-txt .en, .kiln-txt .desc, .kiln-actions, .kiln-art, .kiln-seal { opacity: 1 !important; }
  .kiln-glow { animation: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 杂项 ---------- */
.note { font-size: 13.5px; color: var(--ink-4); line-height: 2; letter-spacing: .5px; }
.hr-dot { height: 1px; background: repeating-linear-gradient(90deg, var(--line) 0 4px, transparent 4px 10px); margin: 30px 0; }
.empty { padding: 60px 20px; text-align: center; color: var(--ink-4); letter-spacing: 2px; }
.ribbon {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: 2px;
  color: var(--celadon-2); background: rgba(110,156,142,.12); padding: 4px 12px; border-radius: 3px;
}