/* ============================================================
   Yuleo · 于良浩 — 本草图谱 / 研究手记
   Design tokens & shared styles
   ============================================================ */

@font-face {
  font-family: "EB Garamond";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/eb-garamond-500.ttf") format("truetype");
}
@font-face {
  font-family: "EB Garamond";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/eb-garamond-600.ttf") format("truetype");
}
@font-face {
  font-family: "EB Garamond";
  font-style: italic;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/eb-garamond-italic-500.ttf") format("truetype");
}

:root {
  /* 纸与墨（偏青的宣纸，本草图谱用纸） */
  --paper: #f4f6f0;
  --paper-deep: #eaeee1;
  --ink: #1c2419;
  --ink-soft: #465140;
  --ink-faint: #5f6759;
  --rule: #d6dcca;
  --rule-strong: #a9ac99;

  /* 本草绿（功能强调）与朱砂（印记） */
  --fern: #2f6b46;
  --fern-deep: #224d33;
  --seal: #b23a26;

  --display: "EB Garamond", "Songti SC", "STSong", "Noto Serif SC", "SimSun", serif;
  --body: "PingFang SC", "Hiragino Sans GB", "Lantinghei SC", "Microsoft YaHei", sans-serif;

  --measure: 40rem;
  --wide: 56rem;
  --rail-w: 13.5rem;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.85;
}

/* ---------- 浏览器表面 ---------- */

::selection {
  background: var(--fern);
  color: var(--paper);
}

caret, :focus { caret-color: var(--fern); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb {
  background: var(--rule-strong);
  border-radius: 5px;
  border: 2px solid var(--paper-deep);
}
::-webkit-scrollbar-thumb:hover { background: var(--fern); }

:focus-visible {
  outline: 2px solid var(--fern);
  outline-offset: 3px;
  border-radius: 1px;
}

a {
  color: var(--fern-deep);
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}
a:hover { text-decoration-color: var(--fern); }

/* ---------- 布局骨架：左目录 + 内容 ---------- */

.shell {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  min-height: 100vh;
}

.rail {
  border-right: 1px solid var(--rule);
  padding: 2.5rem 1.75rem;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  background: var(--paper);
  z-index: 10;
}

.rail .mark {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.2;
}
.rail .mark em {
  font-style: italic;
  font-weight: 500;
  color: var(--fern);
  margin-left: 0.15em;
}
.rail .mark .zh {
  display: block;
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin-top: 0.35rem;
}

.rail nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.rail nav a {
  display: block;
  padding: 0.42rem 0;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
  border-bottom: 1px solid transparent;
}
.rail nav a .no {
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
  font-size: 0.8rem;
  margin-right: 0.6rem;
}
.rail nav a:hover { color: var(--fern-deep); }
.rail nav a[aria-current="page"] {
  color: var(--fern-deep);
  font-weight: 600;
  border-bottom: 1px solid var(--fern);
}

.rail .foot {
  margin-top: auto;
  font-size: 0.8rem;
  color: var(--ink-faint);
  line-height: 1.7;
}
.rail .foot .stamp {
  margin-bottom: 0.9rem;
}

.main {
  padding: 4rem clamp(1.5rem, 5vw, 5rem) 6rem;
  max-width: 64rem;
}

/* 朱砂印章 */
.stamp {
  display: inline-block;
  font-family: var(--display);
  font-weight: 600;
  color: var(--seal);
  border: 2px solid var(--seal);
  border-radius: 3px;
  padding: 0.1em 0.3em;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  transform: rotate(-4deg);
  line-height: 1.5;
  opacity: 0.9;
}

/* ---------- 排版 ---------- */

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: 4rem;
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--rule-strong);
}

h2 .en {
  font-style: italic;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-left: 0.6em;
  letter-spacing: 0.04em;
}

p { margin: 0 0 1.2em; max-width: var(--measure); }

.lede {
  font-size: 1.15rem;
  line-height: 2;
  color: var(--ink-soft);
}

.page-title {
  font-size: clamp(2.2rem, 5vw, 3rem);
  margin-top: 1rem;
  margin-bottom: 1.2rem;
}

.page-title .en {
  font-style: italic;
  font-weight: 500;
  font-size: 1rem;
  color: var(--ink-faint);
  margin-left: 0.8em;
}

.muted { color: var(--ink-soft); }
.faint { color: var(--ink-faint); font-size: 0.92em; }

/* ---------- 标本图版（首页主视觉，全站唯一的"大胆"） ---------- */

.plate {
  border: 1px solid var(--rule-strong);
  outline: 1px solid var(--rule);
  outline-offset: 5px;
  background: var(--paper);
  padding: 2rem;
  margin: 2.5rem 0 3rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 2.5rem;
  align-items: center;
}

.plate svg.sprout {
  width: 100%;
  max-width: 320px;
  height: auto;
  justify-self: center;
}

.plate .plate-cap {
  font-family: var(--display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--ink-faint);
  margin-top: 1rem;
}

.plate .name-zh {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.6rem, 6vw, 4rem);
  line-height: 1.1;
  margin: 0 0 0.2em;
}
.plate .name-la {
  font-family: var(--display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: var(--fern);
  margin: 0 0 1em;
}
.plate .role {
  margin: 0;
  font-size: 1rem;
  color: var(--ink-soft);
}

/* 萌芽生长：全站唯一动效，一次完成 */
.sprout .grow {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 1.8s cubic-bezier(0.22, 0.8, 0.32, 1) forwards;
}
.sprout .grow.d1 { animation-delay: 0.15s; }
.sprout .grow.d2 { animation-delay: 0.45s; }
.sprout .grow.d3 { animation-delay: 0.7s; }
.sprout .grow.d4 { animation-delay: 0.95s; }
@keyframes draw {
  from { stroke-dashoffset: 1; }
  to { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sprout .grow {
    animation: none;
    stroke-dashoffset: 0;
  }
}

/* ---------- 卷目（首页目录清单） ---------- */

.toc {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
}
.toc li {
  border-bottom: 1px solid var(--rule);
}
.toc a {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1.5rem;
  padding: 0.9rem 0.25rem;
  text-decoration: none;
  color: var(--ink);
  align-items: baseline;
  transition: background-color 0.18s ease;
}
.toc a:hover { background: var(--paper-deep); }
.toc .toc-title {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.2rem;
}
.toc .toc-title .en {
  font-style: italic;
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-left: 0.5em;
}
.toc .toc-desc {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- 台账时间线 ---------- */

.ledger {
  border-top: 1px solid var(--rule-strong);
  margin-top: 2rem;
}
.ledger .row {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 1.5rem;
  padding: 1.15rem 0.25rem;
  border-bottom: 1px solid var(--rule);
}
.ledger .when {
  font-variant-numeric: tabular-nums;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--fern-deep);
  white-space: nowrap;
}
.ledger .what { max-width: var(--measure); }
.ledger .what h2 {
  font-family: var(--body);
  font-weight: 600;
  font-size: 1.02rem;
  margin: 0 0 0.3em;
  padding: 0;
  border: none;
  line-height: 1.5;
}
.ledger .what p { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }
.ledger .row.major .when::after {
  content: "●";
  color: var(--seal);
  font-size: 0.5rem;
  vertical-align: 0.35em;
  margin-left: 0.5em;
}

/* ---------- 条目清单（项目 / 文章 / 成果通用） ---------- */

.entries { border-top: 1px solid var(--rule-strong); margin-top: 2rem; }
.entry {
  padding: 1.8rem 0.25rem;
  border-bottom: 1px solid var(--rule);
}
.entry .entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1rem;
  margin-bottom: 0.4em;
}
.entry h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.35rem;
  margin: 0;
  padding: 0;
  border: none;
  line-height: 1.35;
}
.entry h2 .en {
  font-style: italic;
  font-weight: 500;
  font-size: 0.85rem;
}
.entry .meta {
  font-size: 0.88rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}
.entry p { margin-bottom: 0.7em; }
.entry .role-line {
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.entry figure {
  margin: 1.2rem 0 0;
  border: 1px solid var(--rule);
  padding: 0.6rem;
  background: var(--paper);
}
.entry figure img {
  width: 100%;
  height: auto;
  display: block;
}
.entry figcaption {
  font-family: var(--display);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-faint);
  padding: 0.5rem 0.3rem 0.2rem;
}

/* 成果表：药目索引式 */
.formulary {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  font-size: 0.98rem;
}
.formulary th {
  font-family: var(--body);
  font-weight: 600;
  text-align: left;
  font-size: 0.85rem;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--rule-strong);
  padding: 0.5rem 0.75rem 0.5rem 0;
}
.formulary td {
  border-bottom: 1px solid var(--rule);
  padding: 1rem 0.75rem 1rem 0;
  vertical-align: baseline;
}
.formulary .title {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.12rem;
  line-height: 1.45;
  max-width: 26rem;
}
.formulary .venue { white-space: nowrap; font-variant-numeric: tabular-nums; }
.formulary .note { color: var(--ink-soft); font-size: 0.9rem; }

/* ---------- 图片 ---------- */

.photo-frame {
  border: 1px solid var(--rule-strong);
  padding: 0.55rem;
  background: var(--paper);
  max-width: 30rem;
}
.photo-frame img {
  width: 100%;
  display: block;
}
.photo-frame figcaption {
  font-family: var(--display);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-faint);
  padding: 0.55rem 0.4rem 0.15rem;
}

figure { margin: 2rem 0; }

/* ---------- 联系 ---------- */

.contact-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
}
.contact-list li {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1.5rem;
  padding: 1.1rem 0.25rem;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.contact-list .k {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--fern-deep);
}

/* ---------- 响应式 ---------- */

@media (max-width: 900px) {
  .shell { display: block; }
  .rail {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    padding: 1.5rem 1.5rem 1.2rem;
  }
  .rail nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0 1.2rem;
  }
  .rail nav a .no { display: none; }
  .rail .foot { display: none; }
  .main { padding: 2.5rem 1.5rem 4rem; }
  .plate { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem; }
  .plate svg.sprout { max-width: 230px; }
  .ledger .row { grid-template-columns: 1fr; gap: 0.3rem; }
  .toc a { grid-template-columns: 1fr; gap: 0.15rem; }
  .contact-list li { grid-template-columns: 1fr; gap: 0.2rem; }
  .formulary .title { max-width: none; }
}