/* 如是我闻 · 复刻版 — 全站样式（纸感 · 明朝体 · 朱砂） */
:root {
  --paper: #f6f1e7;
  --paper-2: #fffdf6;
  --paper-3: #efe8d8;
  --ink: #2b2822;
  --ink-2: #6f6a5c;
  --ink-3: #9a9484;
  --line: #e2dbc8;
  --line-2: #d3cbb2;
  --red: #a03a2c;
  --red-deep: #7e2b20;
  --gold: #a8873e;
  --green: #4c6b54;
  --serif: "LXGW WenKai Screen", "LXGW WenKai", "Noto Serif SC", "Songti SC", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --maxw: 1120px;
  --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
::selection { background: #e9d9a8; }
a { color: var(--red); text-decoration: none; }
a:hover { color: var(--red-deep); }
img { max-width: 100%; }
button { font-family: var(--serif); cursor: pointer; }
input, select { font-family: var(--serif); }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 241, 231, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  height: 58px; display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: baseline; gap: 10px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-cn { font-size: 21px; font-weight: 600; letter-spacing: 2px; }
.brand-en { font-size: 11px; color: var(--ink-3); letter-spacing: 1.5px; text-transform: uppercase; }
.nav { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav a {
  color: var(--ink-2); font-size: 14px; padding: 6px 12px; border-radius: 6px;
  transition: color .15s, background .15s; white-space: nowrap;
}
.nav a:hover { color: var(--ink); background: var(--paper-3); }
.nav a.active { color: var(--red); background: rgba(160, 58, 44, 0.08); }
.lang-switch { display: flex; border: 1px solid var(--line-2); border-radius: 6px; overflow: hidden; }
.lang-switch button {
  border: 0; background: transparent; color: var(--ink-3); font-size: 12px;
  padding: 5px 9px; line-height: 1.2;
}
.lang-switch button.on { background: var(--red); color: #fff; }
.lang-switch button:hover:not(.on) { color: var(--ink); }

/* ---------- 布局 ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--line); }
.sec-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 28px; }
.sec-title { font-size: 22px; font-weight: 600; letter-spacing: 1px; }
.sec-title::before { content: ""; display: inline-block; width: 4px; height: 18px; background: var(--red); margin-right: 10px; vertical-align: -2px; border-radius: 1px; }
.sec-sub { color: var(--ink-3); font-size: 13px; }
.sec-more { margin-left: auto; font-size: 13px; }

/* ---------- 首页 hero ---------- */
.hero { position: relative; padding: 84px 0 72px; overflow: hidden; }
.hero-inner { position: relative; z-index: 2; max-width: 720px; }
.hero-kicker { color: var(--gold); font-size: 13px; letter-spacing: 4px; margin-bottom: 18px; }
.hero-title { font-size: 44px; font-weight: 600; letter-spacing: 6px; line-height: 1.3; }
.hero-sub { font-size: 19px; color: var(--ink-2); margin-top: 14px; letter-spacing: 1px; }
.hero-desc { margin-top: 22px; color: var(--ink-2); font-size: 15px; max-width: 560px; }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-vertical {
  position: absolute; right: 6%; top: 50px; z-index: 1;
  writing-mode: vertical-rl; font-size: 15px; letter-spacing: 10px;
  color: var(--line-2); user-select: none; line-height: 2.2;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: 8px; font-size: 15px;
  border: 1px solid var(--red); color: var(--red); background: transparent;
  transition: all .15s;
}
.btn:hover { background: var(--red); color: #fff; }
.btn-solid { background: var(--red); color: #fff; }
.btn-solid:hover { background: var(--red-deep); border-color: var(--red-deep); }
.btn-ghost { border-color: var(--line-2); color: var(--ink-2); }
.btn-ghost:hover { background: var(--paper-3); color: var(--ink); border-color: var(--line-2); }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ---------- 统计条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--paper-2); padding: 22px 18px; text-align: center; }
.stat b { display: block; font-size: 28px; font-weight: 600; color: var(--red); font-variant-numeric: tabular-nums; }
.stat span { font-size: 12.5px; color: var(--ink-2); }

/* ---------- 三层阅读介绍 ---------- */
.layers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.layer { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; position: relative; }
.layer-no { font-size: 12px; color: var(--gold); letter-spacing: 2px; }
.layer h3 { font-size: 18px; font-weight: 600; margin: 8px 0 10px; }
.layer p { font-size: 13.5px; color: var(--ink-2); }
.layer .tag { position: absolute; top: 18px; right: 18px; font-size: 11px; color: var(--ink-3); border: 1px solid var(--line-2); border-radius: 99px; padding: 2px 10px; }

/* ---------- 经典卡片 ---------- */
.grid-books { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.book-card {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px 16px; display: flex; flex-direction: column; gap: 8px;
  transition: transform .15s, box-shadow .15s, border-color .15s; color: var(--ink);
}
.book-card:hover { transform: translateY(-3px); border-color: var(--line-2); box-shadow: 0 8px 24px rgba(60, 50, 30, 0.07); color: var(--ink); }
.book-card .bt { font-size: 16.5px; font-weight: 600; line-height: 1.5; }
.book-card .bm { font-size: 12.5px; color: var(--ink-3); }
.book-card .bd { font-size: 12.5px; color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.9em; }
.book-card .bf { margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--line); font-size: 12px; color: var(--gold); display: flex; justify-content: space-between; }
.chip { display: inline-block; font-size: 11px; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--line-2); color: var(--ink-2); background: var(--paper); }

/* ---------- 入口卡 ---------- */
.entries { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.entry { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 20px; background: var(--paper-2); color: var(--ink); transition: all .15s; }
.entry:hover { border-color: var(--red); color: var(--ink); transform: translateY(-2px); }
.entry .ic { font-size: 26px; line-height: 1; color: var(--red); }
.entry h3 { font-size: 16px; margin: 12px 0 6px; font-weight: 600; }
.entry p { font-size: 12.5px; color: var(--ink-2); }

/* ---------- 列表/筛选页 ---------- */
.toolbar { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 22px; }
.search-box { flex: 1 1 260px; display: flex; align-items: center; border: 1px solid var(--line-2); border-radius: 8px; background: #fff; padding: 0 12px; }
.search-box input { flex: 1; border: 0; outline: 0; padding: 10px 6px; font-size: 14.5px; background: transparent; color: var(--ink); }
.filters { display: flex; gap: 10px; flex-wrap: wrap; }
.filters select {
  border: 1px solid var(--line-2); border-radius: 8px; background: #fff; color: var(--ink);
  padding: 9px 10px; font-size: 13.5px; outline: 0; max-width: 200px;
}
.result-meta { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; color: var(--ink-2); font-size: 13.5px; }
.result-meta b { color: var(--red); font-size: 16px; }
.list-books { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.row-book {
  display: flex; gap: 12px; align-items: baseline; padding: 13px 16px;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 8px; color: var(--ink);
}
.row-book:hover { border-color: var(--line-2); background: #fff; color: var(--ink); }
.row-book .code { font-size: 11.5px; color: var(--ink-3); font-family: var(--sans); flex-shrink: 0; }
.row-book .tt { font-size: 15px; font-weight: 500; }
.row-book .mm { font-size: 12px; color: var(--ink-3); margin-left: auto; flex-shrink: 0; text-align: right; }
.empty { text-align: center; padding: 60px 0; color: var(--ink-3); }
.pager { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 26px; flex-wrap: wrap; }
.pager button, .pager span {
  min-width: 34px; height: 34px; padding: 0 8px; border: 1px solid var(--line-2);
  background: var(--paper-2); color: var(--ink-2); border-radius: 7px; font-size: 13.5px;
}
.pager button:hover:not(:disabled) { border-color: var(--red); color: var(--red); }
.pager button.on { background: var(--red); border-color: var(--red); color: #fff; }
.pager button:disabled { opacity: .4; cursor: default; }

/* 朝代 / 作译者 卡片 */
.grid-cards { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.dyn-card, .by-card {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 16px; text-align: center; color: var(--ink); transition: all .15s;
}
.dyn-card:hover, .by-card:hover { border-color: var(--red); color: var(--ink); transform: translateY(-2px); }
.dyn-card b, .by-card b { display: block; font-size: 19px; font-weight: 600; margin-bottom: 4px; }
.dyn-card span, .by-card span { font-size: 12px; color: var(--ink-3); }
.dyn-card .en { font-size: 10.5px; color: var(--ink-3); margin-top: 2px; font-family: var(--sans); }

/* ---------- 阅读页 ---------- */
.reader-head { padding: 40px 0 26px; border-bottom: 1px solid var(--line); }
.crumb { font-size: 12.5px; color: var(--ink-3); margin-bottom: 14px; }
.crumb a { color: var(--ink-2); }
.reader-title-row { display: flex; align-items: flex-start; gap: 28px; }
.reader-title { font-size: 34px; font-weight: 600; letter-spacing: 3px; line-height: 1.4; }
.reader-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 12px; font-size: 13px; color: var(--ink-2); }
.reader-meta b { color: var(--ink); font-weight: 500; }
.reader-desc { margin-top: 14px; font-size: 13.5px; color: var(--ink-2); max-width: 760px; }
.reader-tools { margin-left: auto; display: flex; gap: 8px; flex-shrink: 0; }
.reader-tools button { border: 1px solid var(--line-2); background: var(--paper-2); color: var(--ink-2); border-radius: 7px; padding: 6px 12px; font-size: 12.5px; }
.reader-tools button:hover { border-color: var(--red); color: var(--red); }
.reader-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; }
.rcol { padding: 26px 24px 60px; min-height: 60vh; }
.rcol + .rcol { border-left: 1px solid var(--line); }
.rcol-head {
  position: sticky; top: 58px; z-index: 5; background: var(--paper);
  display: flex; align-items: baseline; gap: 8px; padding: 10px 0 12px;
  border-bottom: 1px solid var(--line); margin-bottom: 18px;
}
.rcol-head b { font-size: 15px; font-weight: 600; }
.rcol-head span { font-size: 11.5px; color: var(--ink-3); }
.rcol-orig { font-size: var(--rsize, 16px); }
.rcol-trans { font-size: var(--rsize, 16px); color: #4a463c; }
.rcol-ai { font-size: 14px; color: var(--ink-2); }
.rsec { margin-bottom: 34px; }
.rsec-title { font-size: 17px; font-weight: 600; margin-bottom: 4px; letter-spacing: 1px; }
.rsec-byline { font-size: 12px; color: var(--ink-3); margin-bottom: 16px; }
.rp { margin-bottom: 18px; }
.rp-o { line-height: 2; }
.rp-t { line-height: 1.9; margin-top: 6px; color: #4a463c; }
.rp-ai {
  margin-top: 8px; padding: 10px 12px; border-left: 2px solid var(--gold);
  background: rgba(168, 135, 62, 0.06); font-size: 13px; line-height: 1.8; border-radius: 0 6px 6px 0;
}
/* 真 AI 生成的节导读：金色加深一档，与本地模板生成区分 */
.rp-ai-real .rp-ai { border-left-color: var(--gold-deep, #9a7b2e); background: rgba(168, 135, 62, 0.1); }
.rp-ai-sec + .rp-ai { margin-top: 6px; }
.rp-ai .ai-tag { font-size: 10.5px; color: var(--gold); letter-spacing: 1px; display: block; margin-bottom: 3px; }
.rp-anchor { scroll-margin-top: 120px; }
/* 原文/白话对照高亮：悬停激活、点击固定（配色随纸感主题的朱砂红） */
.rs-sent { border-radius: 4px; transition: background-color 0.18s ease; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.rp.sync-active { background: rgba(160, 58, 44, 0.09); border-radius: 6px; }
.rp.sync-pinned { background: rgba(160, 58, 44, 0.16); }
.rs-sent.sync-active { background: rgba(160, 58, 44, 0.14); }
.rs-sent.sync-pinned { background: rgba(160, 58, 44, 0.24); }
.rp[data-sync-para].sync-active { background: rgba(168, 135, 62, 0.14); }
.rp[data-sync-para].sync-pinned { background: rgba(168, 135, 62, 0.22); }
.col-tabs { display: none; gap: 8px; margin-bottom: 14px; }
.col-tabs button { flex: 1; border: 1px solid var(--line-2); background: var(--paper-2); border-radius: 7px; padding: 8px; font-size: 13.5px; color: var(--ink-2); }
.col-tabs button.on { background: var(--red); border-color: var(--red); color: #fff; }
.toc { position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 40; display: flex; flex-direction: column; gap: 6px; }
.toc a { font-size: 11.5px; color: var(--ink-3); writing-mode: vertical-rl; letter-spacing: 2px; max-height: 90px; overflow: hidden; }
.toc a:hover, .toc a.on { color: var(--red); }
.reader-foot { padding: 30px 0 60px; color: var(--ink-3); font-size: 12.5px; border-top: 1px solid var(--line); margin-top: 20px; }

/* ---------- 问答页 ---------- */
.chat-box { max-width: 760px; margin: 0 auto; }
.chat-head { text-align: center; padding: 46px 0 26px; }
.chat-head h1 { font-size: 26px; font-weight: 600; letter-spacing: 2px; }
.chat-head p { color: var(--ink-2); font-size: 13px; margin-top: 8px; }
.chat-demo-tip { display: inline-block; margin-top: 12px; font-size: 11.5px; color: var(--gold); border: 1px dashed var(--gold); border-radius: 99px; padding: 2px 12px; }
.chat-log { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; min-height: 380px; max-height: 56vh; overflow-y: auto; }
.msg { display: flex; gap: 10px; margin-bottom: 18px; }
.msg .ava { width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 13px; border: 1px solid var(--line-2); background: var(--paper); color: var(--ink-2); }
.msg.bot .ava { background: var(--red); border-color: var(--red); color: #fff; }
.msg .bubble { flex: 1; font-size: 14px; line-height: 1.9; }
.msg.user { flex-direction: row-reverse; }
.msg.user .bubble { background: var(--paper-3); border-radius: 8px; padding: 8px 14px; }
.cite { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-top: 8px; font-size: 12.5px; background: var(--paper); }
.cite .cs { color: var(--red); font-size: 12px; margin-bottom: 4px; }
.cite .cq { color: var(--ink-2); line-height: 1.8; }
.cite a { font-size: 12px; }
.chat-examples { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.chat-examples button { border: 1px solid var(--line-2); background: var(--paper-2); color: var(--ink-2); border-radius: 99px; padding: 5px 14px; font-size: 12.5px; }
.chat-examples button:hover { border-color: var(--red); color: var(--red); }
.chat-input { display: flex; gap: 10px; margin-top: 14px; }
.chat-input input { flex: 1; border: 1px solid var(--line-2); border-radius: 8px; padding: 12px 14px; font-size: 14.5px; outline: 0; background: #fff; color: var(--ink); }
.chat-input input:focus { border-color: var(--red); }
.chat-input button { border: 0; background: var(--red); color: #fff; border-radius: 8px; padding: 0 22px; font-size: 14.5px; }
.chat-input button:hover { background: var(--red-deep); }
.typing i { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--ink-3); margin-right: 3px; animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .2s; }
.typing i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; } 30% { opacity: 1; } }

/* ---------- 禅堂 ---------- */
.zen-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.zen-panel { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; text-align: center; }
.zen-panel h2 { font-size: 19px; font-weight: 600; margin-bottom: 6px; letter-spacing: 2px; }
.zen-panel .zp-sub { font-size: 12.5px; color: var(--ink-3); margin-bottom: 24px; }
.burner { width: 150px; margin: 0 auto; cursor: pointer; position: relative; }
.burner svg { display: block; width: 100%; }
.flame { transform-origin: 50px 78px; }
.burner.lit .flame { animation: flick .9s infinite ease-in-out alternate; }
@keyframes flick { from { transform: scale(1); opacity: .95; } to { transform: scale(1.12) translateY(-1px); opacity: 1; } }
.smoke { opacity: 0; }
.burner.lit .smoke { animation: rise 3.2s infinite ease-in; }
@keyframes rise { 0% { opacity: 0; transform: translateY(0); } 25% { opacity: .5; } 100% { opacity: 0; transform: translateY(-26px); } }
.zen-timer { font-size: 40px; font-variant-numeric: tabular-nums; letter-spacing: 3px; margin: 10px 0 4px; }
.breath { width: 130px; height: 130px; margin: 18px auto; border-radius: 50%; border: 1px solid var(--gold); display: flex; align-items: center; justify-content: center; color: var(--gold); font-size: 13px; transition: transform 4s ease-in-out; background: rgba(168, 135, 62, 0.05); }
.breath.in { transform: scale(1.18); }
.breath.out { transform: scale(0.92); }
.zen-verse { margin-top: 26px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; text-align: center; }
.zen-verse .zv { font-size: 18px; line-height: 2.1; letter-spacing: 1px; }
.zen-verse .zs { font-size: 12.5px; color: var(--ink-3); margin-top: 12px; }

/* ---------- 开发者页 ---------- */
.api-table { width: 100%; border-collapse: collapse; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 13.5px; }
.api-table th, .api-table td { border-bottom: 1px solid var(--line); padding: 12px 14px; text-align: left; vertical-align: top; }
.api-table th { background: var(--paper-3); font-weight: 500; color: var(--ink-2); font-size: 12.5px; }
.api-table tr:last-child td { border-bottom: 0; }
.api-table code, .mono { font-family: Consolas, "Courier New", monospace; font-size: 12.5px; background: var(--paper-3); border-radius: 4px; padding: 1px 6px; color: var(--red-deep); }
.note-box { border: 1px dashed var(--gold); background: rgba(168, 135, 62, 0.06); border-radius: var(--radius); padding: 16px 18px; font-size: 13px; color: var(--ink-2); margin: 18px 0; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 36px 0 44px; color: var(--ink-3); font-size: 12.5px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; }
.footer h4 { font-size: 13px; color: var(--ink-2); margin-bottom: 10px; font-weight: 500; }
.footer a { color: var(--ink-2); }
.footer a:hover { color: var(--red); }
.footer-links { display: flex; flex-direction: column; gap: 5px; }
.footer-bottom { max-width: var(--maxw); margin: 24px auto 0; padding: 18px 24px 0; border-top: 1px dashed var(--line); text-align: center; font-size: 12px; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .grid-books, .entries, .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-cards { grid-template-columns: repeat(3, 1fr); }
  .list-books { grid-template-columns: repeat(2, 1fr); }
  .layers { grid-template-columns: 1fr; }
  .zen-grid { grid-template-columns: 1fr; }
  .hero-vertical { display: none; }
  .toc { display: none; }
}
@media (max-width: 720px) {
  .topbar-inner { height: auto; flex-wrap: wrap; padding: 10px 16px; gap: 10px; }
  .nav { margin-left: 0; width: 100%; overflow-x: auto; }
  .reader-cols { grid-template-columns: 1fr; }
  .rcol + .rcol { border-left: 0; border-top: 1px solid var(--line); }
  .rcol { display: none; padding: 20px 0 40px; }
  .rcol.show { display: block; }
  .col-tabs { display: flex; }
  .rcol-head { position: static; }
  .reader-title-row { flex-direction: column; gap: 14px; }
  .grid-books, .entries, .stats, .list-books, .grid-cards { grid-template-columns: 1fr; }
  .hero-title { font-size: 32px; }
  .reader-title { font-size: 26px; }
  .section { padding: 40px 0; }
}