/* WPS Office 馆藏出纳台 — 索书卡 / 出纳窗口 */

:root {
  --walnut: #3d2914;
  --walnut-deep: #2a1b0c;
  --walnut-soft: #5a3d1f;
  --cream: #f6efe2;
  --cream-soft: #fbf6ec;
  --card: #f3ead4;
  --gold: #b08d4a;
  --gold-deep: #8d6e32;
  --gold-pale: #d4c09a;
  --ink: #1f160e;
  --ink-soft: #4a3a28;
  --rule: #c9b48a;
  --stamp: #9a7438;
  --ok: #3f5a2e;
  --warn: #6b4a16;
  --shadow: rgba(61, 41, 20, 0.16);
  --radius: 2px;
  --max: 1080px;
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", "Times New Roman", serif;
  --sans: "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  min-height: 100%;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--walnut);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--gold-deep);
}

p,
li {
  color: var(--ink-soft);
}

h1,
h2,
h3 {
  font-family: var(--serif);
  color: var(--walnut);
  font-weight: 700;
  line-height: 1.35;
}

h1 {
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  margin: 0 0 0.8rem;
}

h2 {
  font-size: clamp(1.28rem, 2.2vw, 1.55rem);
  margin: 0 1.8rem 1rem 0;
}

h3 {
  font-size: 1.08rem;
  margin: 1.2rem 0 0.45rem;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}

.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 20;
  background: var(--cream);
  color: var(--walnut);
  padding: 0.4rem 0.7rem;
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

/* 馆藏眉 */

.mast {
  background: var(--walnut);
  color: var(--cream);
  border-bottom: 4px solid var(--gold);
}

.brow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.45rem 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: none;
  border-bottom: 1px solid rgba(176, 141, 74, 0.35);
}

.brow-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.brow svg {
  flex-shrink: 0;
}

.call-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--gold);
  color: var(--gold-pale);
  padding: 0.12rem 0.55rem;
  font-family: var(--serif);
  letter-spacing: 0.08em;
}

.brand-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--cream);
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.55rem;
  letter-spacing: 0.08em;
}
.brand svg {
  flex: 0 0 auto;
}

.brand:hover {
  color: var(--gold-pale);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.7rem;
}

.nav a {
  color: var(--cream);
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0.28rem 0.7rem;
  font-size: 0.95rem;
}

.nav a:hover {
  border-color: var(--gold);
  color: var(--gold-pale);
}

.nav a[aria-current="page"] {
  background: var(--gold);
  color: var(--walnut-deep);
  border-color: var(--gold);
}

/* 索书单 Hero */

.slip {
  margin: 1.4rem auto 1.1rem;
  background: var(--cream-soft);
  border: 1px solid var(--gold-pale);
  box-shadow: 4px 6px 0 var(--walnut);
  position: relative;
  padding: 1.4rem 1.4rem 1.5rem;
}

.slip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 14px;
  background:
    repeating-linear-gradient(
      180deg,
      var(--walnut) 0 10px,
      transparent 10px 18px
    );
  opacity: 0.18;
}

.slip-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding-left: 1rem;
  border-bottom: 1px dashed var(--rule);
  padding-bottom: 0.7rem;
  margin-bottom: 0.9rem;
}

.slip-kicker {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
}

.slip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.7rem;
  padding-left: 1rem;
  margin-bottom: 1rem;
}

.field {
  border: 1px solid var(--rule);
  background: #fffdf7;
  padding: 0.45rem 0.65rem 0.55rem;
}

.field span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

.field strong {
  display: block;
  margin-top: 0.15rem;
  font-family: var(--serif);
  color: var(--walnut);
  font-size: 1.02rem;
}

.seal {
  width: 86px;
  height: 86px;
  border: 3px solid var(--stamp);
  border-radius: 50%;
  color: var(--stamp);
  display: grid;
  place-items: center;
  text-align: center;
  transform: rotate(-14deg);
  font-family: var(--serif);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  line-height: 1.25;
  flex-shrink: 0;
  background: rgba(176, 141, 74, 0.06);
}

.seal small {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
}

.lead {
  padding-left: 1rem;
  margin: 0 0 1rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding-left: 1rem;
}

/* 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.45rem 1.05rem;
  border: 1px solid var(--walnut);
  background: var(--walnut);
  color: var(--cream);
  text-decoration: none;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: inherit;
}

.btn:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--walnut-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--walnut);
}

.btn-ghost:hover {
  background: var(--walnut);
  color: var(--cream);
}

.btn-gold {
  background: var(--gold);
  border-color: var(--gold-deep);
  color: var(--walnut-deep);
}

.btn-gold:hover {
  background: var(--walnut);
  color: var(--cream);
}

.btn[data-busy="1"] {
  opacity: 0.78;
  pointer-events: none;
}

.btn svg {
  flex-shrink: 0;
}

/* 目录卡片叠放 */

.stack {
  padding: 0 0 2.4rem;
}

.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--gold-pale);
  border-left: 6px solid var(--walnut);
  box-shadow: 0 1px 0 var(--gold-pale), 0 10px 22px var(--shadow);
  padding: 1.55rem 1.45rem 1.5rem;
  margin: 0 0 1.15rem;
}

.card + .card {
  margin-top: 0;
}

.card::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 8px;
  height: 1px;
  background: var(--rule);
  opacity: 0.55;
}

.hold-stamp {
  position: absolute;
  right: 18px;
  top: 16px;
  width: 78px;
  height: 78px;
  border: 2px solid var(--stamp);
  border-radius: 50%;
  color: var(--stamp);
  display: grid;
  place-items: center;
  text-align: center;
  font-family: var(--serif);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  transform: rotate(16deg);
  opacity: 0.72;
  pointer-events: none;
}

.lede,
.prose p {
  margin: 0 0 0.85rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.note-list {
  margin: 0.4rem 0 0.9rem;
  padding-left: 1.15rem;
}

.note-list li {
  margin: 0.3rem 0;
}

/* 流通参考（非仪表盘） */

.circ {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  margin: 1rem 0 0.4rem;
}

.circ-item {
  background: #fffdf7;
  border: 1px solid var(--rule);
  padding: 0.7rem 0.75rem;
}

.circ-item b {
  display: block;
  font-family: var(--serif);
  font-size: 1.25rem;
  color: var(--walnut);
}

.circ-item span {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

.shelf {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.shelf-box {
  background: var(--cream-soft);
  border: 1px dashed var(--gold);
  padding: 0.85rem 0.95rem;
}

.shelf-box h3 {
  margin-top: 0;
}

/* 评价双栏 */

.reviews {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-top: 0.85rem;
}

.review {
  background: #fffdf7;
  border: 1px solid var(--rule);
  padding: 0.9rem 0.95rem 1rem;
  position: relative;
}

.review h3 {
  margin-top: 0;
  padding-right: 3.2rem;
}

.review footer {
  margin-top: 0.55rem;
  font-size: 0.82rem;
  color: var(--gold-deep);
  letter-spacing: 0.04em;
}

/* 多平台窗格 */

.windows {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
  margin: 0.9rem 0 0.4rem;
}

.window {
  border: 1px solid var(--walnut-soft);
  background: var(--cream-soft);
  padding: 0.95rem 1rem 1.05rem;
}

.window h3 {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0;
}

.window p {
  margin: 0 0 0.8rem;
  min-height: 3.4em;
}

/* 编目对照表 */

.table-wrap {
  overflow-x: auto;
  margin: 0.8rem 0 0.3rem;
  border: 1px solid var(--rule);
  background: #fffdf7;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

th,
td {
  border-bottom: 1px solid var(--rule);
  text-align: left;
  padding: 0.62rem 0.75rem;
  vertical-align: top;
  font-size: 0.95rem;
}

th {
  background: var(--walnut);
  color: var(--cream);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: 0;
}

tr:nth-child(even) td {
  background: rgba(246, 239, 226, 0.55);
}

/* 步骤 */

.steps {
  margin: 0.6rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: slip;
}

.steps li {
  position: relative;
  padding: 0.7rem 0.7rem 0.7rem 3.1rem;
  border-top: 1px dashed var(--rule);
}

.steps li::before {
  counter-increment: slip;
  content: counter(slip, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--gold);
  color: var(--walnut);
  font-family: var(--serif);
  display: grid;
  place-items: center;
  background: #fffdf7;
}

/* FAQ */

.faq {
  margin: 0.4rem 0 0;
}

.faq details {
  border-bottom: 1px solid var(--rule);
  padding: 0.55rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--walnut);
  list-style: none;
  padding-right: 1.4rem;
  position: relative;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "＋";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--gold-deep);
}

.faq details[open] summary::after {
  content: "－";
}

.faq details p {
  margin: 0.45rem 0 0.2rem;
}

/* 页脚 */

.foot {
  background: var(--walnut-deep);
  color: var(--gold-pale);
  padding: 1.5rem 0 1.8rem;
}

.foot a {
  color: var(--gold-pale);
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
}

.foot h2,
.foot-h {
  color: var(--cream);
  font-size: 1rem;
  margin: 0 0 0.45rem;
  font-family: var(--serif);
  font-weight: 700;
}

.foot p,
.foot li {
  color: var(--gold-pale);
  font-size: 0.88rem;
}

.foot-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.9rem;
  margin: 0.4rem 0 0.8rem;
  padding: 0;
  list-style: none;
}

.verify {
  border: 1px solid var(--gold);
  padding: 0.7rem 0.8rem;
  margin: 0 0 0.8rem;
}

.legal {
  margin: 0;
  letter-spacing: 0.02em;
}

/* 工具与图标对齐 */

.ico {
  display: inline-block;
  vertical-align: -3px;
}

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

.tagline {
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.req {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 0.75rem 0;
}

.req dl {
  margin: 0;
  background: #fffdf7;
  border: 1px solid var(--rule);
  padding: 0.7rem 0.85rem;
}

.req dt {
  font-family: var(--serif);
  color: var(--walnut);
  font-weight: 700;
}

.req dd {
  margin: 0.25rem 0 0;
}

.changelog {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.changelog li {
  border-left: 3px solid var(--gold);
  padding: 0.45rem 0 0.55rem 0.8rem;
  margin: 0 0 0.45rem;
  background: #fffdf7;
}

.longform .card {
  padding-right: 1.6rem;
}

.cta-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.9rem;
  padding: 0.75rem 0.85rem;
  background: var(--cream-soft);
  border: 1px solid var(--gold);
}

/* 焦点可见 */

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* 响应式 */

@media (max-width: 900px) {
  .slip-grid,
  .circ,
  .reviews,
  .windows,
  .shelf,
  .req,
  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .brand-row,
  .brow,
  .slip-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .slip-grid,
  .circ,
  .reviews,
  .windows,
  .shelf,
  .req,
  .foot-grid {
    grid-template-columns: 1fr;
  }

  .hold-stamp {
    position: static;
    margin: 0 0 0.7rem auto;
    transform: rotate(8deg);
  }

  h2 {
    margin-right: 0;
  }

  .wrap {
    width: min(var(--max), calc(100% - 1.2rem));
  }

  table {
    min-width: 540px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  .actions,
  .cta-strip {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .seal {
    width: 74px;
    height: 74px;
    font-size: 0.7rem;
  }

  .nav a {
    padding: 0.34rem 0.55rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .nav a {
    transition: none;
  }
}

/* 打印：保留索书卡可读性 */

@media print {
  .mast,
  .foot,
  .actions,
  .cta-strip,
  .btn {
    box-shadow: none;
  }

  .card,
  .slip {
    break-inside: avoid;
    box-shadow: none;
  }

  body {
    background: #fff;
  }
}

/* 辅助：出纳窗状态行 */

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.7rem 0 0;
}

.pill {
  border: 1px solid var(--gold);
  color: var(--walnut);
  padding: 0.1rem 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  background: #fffdf7;
}

.rule-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tiny-svg {
  width: 18px;
  height: 18px;
}

.dl-note {
  margin: 0.55rem 0 0;
  font-size: 0.86rem;
}

.article-meta {
  font-size: 0.82rem;
  color: var(--gold-deep);
  margin: 0 0 0.8rem;
  padding-left: 1rem;
}

.spine {
  height: 10px;
  background:
    linear-gradient(90deg, var(--walnut) 0 12%, var(--gold) 12% 18%, var(--walnut-soft) 18% 40%, var(--gold-pale) 40% 46%, var(--walnut) 46% 100%);
}

/* 补充：目录卡内嵌编目行 */

.bib-line {
  display: grid;
  grid-template-columns: 6.2rem 1fr;
  gap: 0.35rem 0.6rem;
  margin: 0.55rem 0 0.85rem;
  font-size: 0.92rem;
}

.bib-line dt {
  margin: 0;
  color: var(--gold-deep);
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.bib-line dd {
  margin: 0;
  border-bottom: 1px dotted var(--rule);
  color: var(--ink);
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

@media (max-width: 720px) {
  .pair {
    grid-template-columns: 1fr;
  }

  .bib-line {
    grid-template-columns: 1fr;
  }
}

.safe-box {
  border: 1px solid var(--ok);
  background: rgba(63, 90, 46, 0.06);
  padding: 0.7rem 0.85rem;
  margin: 0.75rem 0 0;
}

.warn-box {
  border: 1px solid var(--warn);
  background: rgba(107, 74, 22, 0.08);
  padding: 0.7rem 0.85rem;
  margin: 0.75rem 0 0;
}

.mast .brand:focus-visible,
.nav a:focus-visible {
  outline-color: var(--gold-pale);
}