/* ==========================================================================
   天美小说 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --paper: #FBF8F2;
  --sand: #F2EBDF;
  --oat: #F2EBDF;
  --ink: #1E1B18;
  --muted: #6B6259;
  --brass: #A8794A;
  --pine: #3C6E62;
  --line: #D8CBAF;
  --radius: 6px;
  --shell: 1120px;
  --reading: 720px;
  --serif: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

h1 {
  font-size: clamp(28px, 4vw, 40px);
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.15em;
}

li {
  margin-bottom: 0.35em;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 150ms ease, text-decoration-color 150ms ease,
    text-decoration-thickness 150ms ease;
}

a:hover {
  color: var(--brass);
  text-decoration-color: var(--brass);
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

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

figure {
  margin: 0;
}

dl,
dd {
  margin: 0;
}

strong {
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   layout · 全站骨架
   -------------------------------------------------------------------------- */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--paper);
  font-family: var(--serif);
  color: var(--ink);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  flex: 0 0 auto;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  padding: 6px 0;
}

.brand:hover {
  color: var(--brass);
  text-decoration: none;
}

.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav li {
  margin: 0;
}

.nav-link {
  display: inline-block;
  padding: 8px 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
}

.nav-link:hover {
  color: var(--brass);
  border-bottom-color: var(--brass);
  text-decoration: none;
}

.nav-link.is-current {
  border-bottom-color: var(--brass);
  color: var(--ink);
}

.header-tools {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-tools a {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  padding: 8px 0;
  white-space: nowrap;
}

.header-tools a:hover {
  color: var(--brass);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: transform 150ms ease, opacity 150ms ease;
}

.mobile-nav {
  display: none;
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.home-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 28px 24px 72px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--brass);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--line);
}

.breadcrumb-current {
  color: var(--ink);
}

.page-header {
  margin-bottom: 20px;
}

.page-title {
  margin: 0;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

.page-lead,
.page-lede {
  max-width: var(--reading);
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--ink);
}

.page-meta {
  max-width: var(--reading);
  margin: 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-meta a {
  color: var(--muted);
}

.page-meta a:hover {
  color: var(--brass);
}

/* 首页与内页通用的段落阅读宽度 */
.section-head p,
.scope-note p,
.unit-rule p,
.misjudge-note p,
.crosslink p,
.faq-scope p,
.rule-columns,
.status-read-columns,
.related-links {
  max-width: var(--reading);
}

/* --------------------------------------------------------------------------
   layout · 内页栏式结构
   -------------------------------------------------------------------------- */

.page-layout {
  display: grid;
  gap: 40px;
  align-items: start;
}

.page-layout.layout-sidebar-right {
  grid-template-columns: minmax(0, 1fr) 300px;
}

.page-layout.sidebar-left {
  grid-template-columns: 240px minmax(0, 1fr);
}

.page-layout.has-aside {
  grid-template-columns: minmax(0, 1fr) 300px;
}

.content-column,
.content-main {
  min-width: 0;
}

.page-aside,
.content-aside {
  min-width: 0;
  font-size: 15px;
  line-height: 1.75;
}

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

/* --------------------------------------------------------------------------
   components · 通用区块头
   -------------------------------------------------------------------------- */

.section-head {
  margin-bottom: 22px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.section-head p {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.section-title {
  margin: 0 0 14px;
  font-size: 24px;
}

.section-intro {
  max-width: var(--reading);
  margin: 0 0 20px;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.sub-title {
  margin: 0 0 10px;
  font-size: 17px;
}

/* 状态标签 */
.status-tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.08em;
  border-radius: 4px;
  border: 1px solid currentColor;
  white-space: nowrap;
}

.status-ongoing,
.status-serial {
  color: var(--pine);
}

.status-done,
.status-finished {
  color: var(--muted);
}

.status-paused {
  color: var(--brass);
}

/* 侧栏块 */
.aside-block {
  padding: 18px 20px;
  margin-bottom: 20px;
  background: var(--sand);
  border-radius: var(--radius);
}

.aside-block h2,
.aside-block h3 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 600;
}

.aside-title {
  margin: 0 0 12px;
  font-size: 16px;
}

.aside-list {
  margin: 0;
  padding-left: 1.1em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.aside-list li {
  margin-bottom: 8px;
}

.aside-list li:last-child {
  margin-bottom: 0;
}

.aside-list strong {
  color: var(--ink);
}

.aside-links {
  list-style: none;
  padding-left: 0;
}

.aside-links a {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
}

/* 图片容器通用约束 */
.hero-visual img,
.band-media img,
.genre-visual img,
.unit-figure img,
.content-figure img,
.section-media img,
.change-figure img,
.rule-media img,
.category-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.hero-visual,
.band-media,
.genre-visual,
.unit-figure,
.content-figure,
.section-media,
.change-figure,
.rule-media,
.category-visual {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--sand);
}

figcaption {
  padding: 8px 2px 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   components · 页脚
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--oat);
  border-top: 1px solid var(--line);
  font-family: var(--sans);
  color: var(--ink);
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 44px 24px 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
}

.footer-col {
  min-width: 0;
}

.footer-title {
  margin: 0 0 12px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li {
  margin-bottom: 6px;
}

.footer-links a {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--brass);
  text-decoration: underline;
}

.footer-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.footer-bottom {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.footer-brand {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  padding: 56px 0 64px;
}

.hero-copy {
  min-width: 0;
}

.hero-copy h1 {
  margin: 0 0 18px;
}

.hero-lead {
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.hero-tasks {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-tasks li {
  margin: 0;
}

.hero-tasks a {
  display: inline-block;
  padding: 10px 18px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--brass);
  border-radius: var(--radius);
  transition: background-color 150ms ease, color 150ms ease;
}

.hero-tasks a:hover {
  background: var(--brass);
  color: var(--paper);
}

.hero-boundary {
  margin: 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.hero-visual {
  aspect-ratio: 3 / 2;
  margin: 0;
}

/* 题材索引条 */
.genre-index-bar {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.genre-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.genre-grid li {
  margin: 0;
}

.genre-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 16px 14px;
  background: var(--sand);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background-color 150ms ease;
}

.genre-cell:hover {
  background: #EBE2D2;
  text-decoration: none;
}

.genre-name {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.genre-hint {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* 阅读任务分组 */
.task-groups {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.task-group {
  max-width: var(--reading);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.task-group:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.group-title {
  margin: 0 0 8px;
  font-size: 18px;
}

.group-desc {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--ink);
}

.task-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.task-links li {
  margin: 0;
}

.task-links a {
  font-family: var(--sans);
  font-size: 14px;
}

/* 精选书单展签带 */
.reading-list-band {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.band-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.band-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.band-item-plain {
  grid-template-columns: minmax(0, 1fr);
  max-width: var(--reading);
}

.band-media {
  aspect-ratio: 3 / 2;
  margin: 0;
}

.band-text {
  min-width: 0;
}

.band-name {
  margin: 0 0 12px;
  font-size: 20px;
}

.band-fields {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  margin: 0 0 16px;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.7;
}

.band-fields dt {
  color: var(--muted);
  white-space: nowrap;
}

.band-fields dd {
  color: var(--ink);
}

.band-link {
  font-family: var(--sans);
  font-size: 14px;
}

/* 作品动态与更新说明 */
.status-and-updates {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.status-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.updates-column,
.status-column {
  min-width: 0;
}

.column-title {
  margin: 0 0 14px;
  font-size: 18px;
}

.update-list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.update-item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.7;
}

.update-item:last-child {
  border-bottom: 0;
}

.update-date {
  color: var(--muted);
  white-space: nowrap;
}

.update-text {
  color: var(--ink);
}

.column-link {
  font-family: var(--sans);
  font-size: 14px;
}

.status-list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.status-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  padding: 8px 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.status-note {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* 作者档案摘要 */
.author-index-brief {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.author-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.author-grid li {
  margin: 0;
}

.author-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.author-cell:hover {
  border-color: var(--brass);
  background: var(--sand);
  text-decoration: none;
}

.author-name {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.author-hint {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* 阅读答疑摘要 */
.faq-brief {
  padding: 48px 0 0;
  border-top: 1px solid var(--line);
}

.faq-brief-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  max-width: var(--reading);
}

.faq-brief-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.faq-brief-item:last-child {
  border-bottom: 0;
}

.faq-question {
  margin: 0 0 6px;
  font-size: 17px;
}

.faq-answer-hint {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.faq-all-link {
  font-family: var(--sans);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages · 题材索引
   -------------------------------------------------------------------------- */

.scope-note {
  margin-bottom: 28px;
}

.scope-note h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.scope-note p {
  margin: 0 0 12px;
}

.genre-visual {
  margin: 0 0 32px;
  aspect-ratio: 3 / 2;
  max-width: var(--reading);
}

.genre-groups h2 {
  margin: 0 0 20px;
  font-size: 22px;
}

.genre-group {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.genre-group:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.genre-group h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.genre-desc {
  margin: 0 0 12px;
  font-size: 16px;
}

.genre-entries {
  margin: 0 0 12px;
  padding-left: 1.15em;
}

.genre-entries li {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.8;
}

.genre-tip {
  margin: 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   pages · 精选书单
   -------------------------------------------------------------------------- */

.unit-rule {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.unit-rule p {
  margin: 0 0 12px;
}

.unit-list {
  margin-bottom: 40px;
}

.unit-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.unit-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.unit-item-text {
  grid-template-columns: minmax(0, 1fr);
  max-width: var(--reading);
}

.unit-item-reverse .unit-figure {
  order: 2;
}

.unit-item-reverse .unit-body {
  order: 1;
}

.unit-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
}

.unit-body {
  min-width: 0;
}

.unit-name {
  margin: 0 0 14px;
  font-size: 20px;
}

.unit-fields {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  margin: 0 0 16px;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.7;
}

.unit-fields dt {
  color: var(--muted);
  white-space: nowrap;
}

.unit-fields dd {
  color: var(--ink);
}

.unit-link {
  font-family: var(--sans);
  font-size: 14px;
}

.unit-crosslink {
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.crosslink-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.crosslink-col {
  min-width: 0;
}

.crosslink-list {
  margin: 0;
  padding-left: 1.15em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   pages · 选书方法
   -------------------------------------------------------------------------- */

.step-toc {
  margin: 0 0 20px;
  padding-left: 1.2em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
}

.step-toc li {
  margin-bottom: 6px;
}

.step-toc a {
  color: var(--ink);
}

.step-list {
  margin-bottom: 40px;
}

.step-list > h2 {
  margin: 0 0 20px;
  font-size: 22px;
}

.step-item {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.step-item:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.step-no {
  margin: 0 0 6px;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--brass);
}

.step-title {
  margin: 0 0 10px;
  font-size: 19px;
}

.step-item p {
  margin: 0 0 10px;
}

.step-action {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--pine);
  padding-left: 14px;
  border-left: 2px solid var(--pine);
}

.content-figure {
  margin: 16px 0;
  aspect-ratio: 3 / 2;
  max-width: var(--reading);
}

.misjudge-note {
  margin-bottom: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.misjudge-note > h2 {
  margin: 0 0 18px;
  font-size: 22px;
}

.misjudge-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  max-width: var(--reading);
}

.misjudge-col {
  min-width: 0;
}

.misjudge-col h3 {
  margin: 0 0 10px;
  font-size: 17px;
}

.misjudge-col ul {
  margin: 0;
  padding-left: 1.15em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.crosslink {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.crosslink > h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

.crosslink-list {
  margin: 0;
  padding-left: 1.15em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.9;
}

/* --------------------------------------------------------------------------
   pages · 作者档案
   -------------------------------------------------------------------------- */

.scope-note .section-media {
  margin: 0 0 20px;
  aspect-ratio: 3 / 2;
  max-width: var(--reading);
}

.profile-groups {
  margin-bottom: 36px;
}

.profile-groups > h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

.profile-group {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.profile-group h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.profile-list {
  margin: 0;
  padding-left: 1.15em;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.85;
}

.field-spec {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.field-spec > h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

.field-list {
  margin: 0;
  padding-left: 1.3em;
  max-width: var(--reading);
}

.field-list li {
  margin-bottom: 14px;
}

.field-list h3 {
  margin: 0 0 4px;
  font-size: 16px;
}

.field-list p {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   pages · 作品动态
   -------------------------------------------------------------------------- */

.change-type {
  margin-bottom: 40px;
}

.change-type > h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

.change-type-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.change-type-item {
  margin: 0;
  padding: 16px 14px;
  background: var(--sand);
  border-radius: var(--radius);
}

.change-type-item h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.change-type-item p {
  margin: 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.change-list {
  margin-bottom: 40px;
}

.change-list > h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

.change-group {
  margin-bottom: 28px;
}

.change-group-title {
  margin: 0 0 10px;
  font-size: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.change-items {
  margin: 0;
  padding: 0;
  list-style: none;
}

.change-item {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.change-item:last-child {
  border-bottom: 0;
}

.change-date {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  white-space: nowrap;
}

.change-body {
  min-width: 0;
}

.change-entry {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
}

.change-desc {
  margin: 0 0 4px;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.change-scope {
  margin: 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.change-figure {
  margin: 0 0 28px;
  aspect-ratio: 3 / 2;
}

.status-read {
  margin-bottom: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.status-read > h2 {
  margin: 0 0 18px;
  font-size: 22px;
}

.status-read-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.status-read-columns .status-column h3,
.check-column h3 {
  margin: 0 0 12px;
  font-size: 17px;
}

.status-read-columns .status-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.status-read-columns .status-list li {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.status-read-columns .status-list li:last-child {
  border-bottom: 0;
}

.status-read-columns .status-list p {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.check-steps {
  margin: 0 0 12px;
  padding-left: 1.3em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
}

.check-note {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.related-links {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.related-links > h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.related-list {
  margin: 0;
  padding-left: 1.15em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.9;
}

/* --------------------------------------------------------------------------
   pages · 内容标准
   -------------------------------------------------------------------------- */

.anchor-bar {
  margin-bottom: 32px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.anchor-bar ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.anchor-bar li {
  margin: 0;
}

.anchor-bar a {
  font-family: var(--sans);
  font-size: 14px;
}

.scope-rule,
.classify-rule,
.maintain-flow {
  margin-bottom: 40px;
}

.scope-rule > h2,
.classify-rule > h2,
.maintain-flow > h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.scope-rule > p,
.classify-rule > p,
.maintain-flow > p {
  max-width: var(--reading);
  margin: 0 0 14px;
}

.rule-media {
  margin: 0 0 24px;
  aspect-ratio: 3 / 2;
  max-width: var(--reading);
}

.rule-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.rule-col {
  min-width: 0;
}

.rule-col h3 {
  margin: 0 0 10px;
  font-size: 17px;
}

.rule-list {
  margin: 0;
  padding-left: 1.15em;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
}

.status-table {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  max-width: var(--reading);
  border-top: 1px solid var(--line);
}

.status-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
}

.status-meaning {
  color: var(--ink);
}

.status-use {
  color: var(--muted);
}

.rule-tail {
  max-width: var(--reading);
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.flow-steps {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  max-width: var(--reading);
}

.flow-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.flow-step:last-child {
  border-bottom: 0;
}

.flow-num {
  grid-row: 1 / span 2;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--brass);
}

.flow-step h3 {
  margin: 0;
  font-size: 17px;
}

.flow-step p {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   pages · 阅读答疑
   -------------------------------------------------------------------------- */

.page-description {
  max-width: var(--reading);
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--ink);
}

.faq-categories {
  margin-bottom: 40px;
}

.category-visual {
  margin: 0 0 24px;
  aspect-ratio: 3 / 2;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.category-card {
  padding: 18px 16px;
  background: var(--sand);
  border-radius: var(--radius);
}

.category-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.category-card p {
  margin: 0 0 10px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.category-links {
  margin: 0;
  padding-left: 1.1em;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.75;
}

.category-links li {
  margin-bottom: 4px;
}

.faq-list {
  margin-bottom: 40px;
}

.qa-group {
  margin-bottom: 28px;
}

.qa-group-title {
  margin: 0 0 10px;
  font-size: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.qa-item {
  border-bottom: 1px solid var(--line);
}

.qa-item:last-child {
  border-bottom: 0;
}

.qa-item summary {
  padding: 14px 30px 14px 0;
  position: relative;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.qa-item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 400;
  color: var(--brass);
}

.qa-item[open] summary::after {
  content: "–";
}

.qa-item p {
  margin: 0 0 16px;
  padding-right: 20px;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.faq-scope {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.faq-scope > h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.faq-scope p {
  margin: 0 0 12px;
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 24px;
}

.error-block {
  max-width: 620px;
  width: 100%;
  text-align: left;
}

.error-code {
  margin: 0 0 10px;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--brass);
}

.error-title {
  margin: 0 0 16px;
  font-size: clamp(26px, 4vw, 36px);
}

.error-desc {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--ink);
}

.error-links {
  margin: 24px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.error-links li {
  margin: 0;
}

.error-links a {
  font-family: var(--sans);
  font-size: 14px;
}

.error-home {
  display: inline-block;
  padding: 10px 20px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--brass);
  border-radius: var(--radius);
  transition: background-color 150ms ease, color 150ms ease;
}

.error-home:hover {
  background: var(--brass);
  color: var(--paper);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .header-inner {
    gap: 12px;
    min-height: 60px;
    padding: 0 18px;
  }

  .site-nav {
    display: none;
  }

  .header-tools {
    display: none;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .mobile-nav {
    display: none;
    border-top: 1px solid var(--line);
    background: var(--paper);
    padding: 8px 18px 18px;
  }

  .mobile-nav.is-open {
    display: block;
  }

  .mobile-nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .mobile-nav li {
    margin: 0;
    border-bottom: 1px solid var(--line);
  }

  .mobile-nav .nav-link {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 0;
  }

  .mobile-nav .nav-link.is-current {
    color: var(--brass);
    border-bottom: 0;
  }

  .mobile-nav-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    padding-top: 14px;
    margin-top: 4px;
    border-top: 1px solid var(--line);
  }

  .mobile-nav-tools a {
    font-family: var(--sans);
    font-size: 14px;
    color: var(--muted);
    text-decoration: none;
    padding: 8px 0;
  }

  .mobile-nav-tools a:hover {
    color: var(--brass);
  }

  .home-main,
  .inner-main {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 36px 0 44px;
  }

  .hero-visual {
    aspect-ratio: 3 / 2;
  }

  .genre-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .author-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-layout.layout-sidebar-right,
  .page-layout.has-aside {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-layout.sidebar-left {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-layout.sidebar-left .page-aside {
    order: 0;
  }

  .page-layout.sidebar-left .content-column {
    order: 1;
  }

  .step-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 20px;
    padding-left: 0;
    list-style: none;
  }

  .step-toc li {
    margin: 0;
  }

  .change-type-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    padding: 36px 18px 24px;
  }

  .footer-bottom {
    padding: 14px 18px 28px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .home-main,
  .inner-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .mobile-nav {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero {
    padding-top: 28px;
  }

  .hero-tasks a {
    display: block;
    width: 100%;
    text-align: center;
  }

  .genre-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .genre-cell {
    padding: 14px 12px;
  }

  .band-item,
  .unit-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .unit-item-reverse .unit-figure,
  .unit-item-reverse .unit-body {
    order: 0;
  }

  .band-fields,
  .unit-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .band-fields dt,
  .unit-fields dt {
    color: var(--brass);
    font-size: 12px;
    letter-spacing: 0.04em;
  }

  .band-fields dd,
  .unit-fields dd {
    margin-bottom: 8px;
  }

  .status-columns,
  .crosslink-columns,
  .misjudge-grid,
  .rule-columns,
  .status-read-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

  .author-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .update-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .change-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .change-type-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .category-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .status-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 14px 0;
  }

  .flow-step {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 2px 10px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .anchor-bar ul {
    gap: 6px 18px;
  }

  .error-main {
    padding: 48px 16px;
  }

  .error-links {
    flex-direction: column;
    gap: 10px;
  }
}