/* ==========================================================================
   base
   ========================================================================== */

:root {
  --color-paper: #faf7f2;
  --color-ink: #243b4a;
  --color-accent: #e8613c;
  --color-muted: #5f7d8c;
  --color-card: #ffffff;
  --color-section: #f0ece4;
  --color-border: #e0d9cf;
  --color-accent-soft: #f7e8e2;

  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --container-width: 1180px;
  --content-width: 820px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-ink);
  background-color: var(--color-paper);
}

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

a {
  color: var(--color-ink);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent);
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: collapse;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   layout
   ========================================================================== */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

.brand-link:hover .brand-name {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
}

.nav-list li a:hover {
  color: var(--color-ink);
  background-color: var(--color-section);
}

.nav-list li a.is-current {
  color: var(--color-ink);
  background-color: var(--color-section);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.nav-toggle:hover {
  background-color: var(--color-section);
}

.nav-toggle-icon {
  position: relative;
  width: 24px;
  height: 18px;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 2px;
}

.nav-toggle-icon::before {
  top: 0;
}

.nav-toggle-icon::after {
  bottom: 0;
}

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

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 8px;
  font-size: 14px;
  color: var(--color-muted);
}

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

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  color: var(--color-muted);
  opacity: 0.6;
}

.breadcrumb-current {
  color: var(--color-ink);
  font-weight: 500;
}

.page-header {
  padding: 16px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.page-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-ink);
}

.page-description {
  margin-top: 12px;
  max-width: var(--content-width);
  font-size: 16px;
  color: var(--color-muted);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: var(--content-width);
}

.site-footer {
  background-color: var(--color-ink);
  color: #c8d4dc;
  padding: 48px 24px 24px;
}

.footer-columns {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding-bottom: 32px;
}

.footer-col h2 {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 14px;
  color: #a8b8c2;
}

.footer-col ul li a:hover {
  color: #ffffff;
}

.copyright {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 13px;
  color: #8fa3ae;
}

/* ==========================================================================
   components
   ========================================================================== */

/* ---------- 通用链接与按钮 ---------- */

.cta-link {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.cta-link:hover {
  background-color: #d14f2c;
  color: #ffffff;
}

.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  padding: 4px 0;
}

.text-link::after {
  content: "→";
  margin-left: 4px;
}

.text-link:hover {
  color: #d14f2c;
}

/* ---------- 封面卡与作品条目 ---------- */

.work-item {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.work-item:last-child {
  border-bottom: none;
}

.work-item img {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.work-meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  min-width: 0;
}

.work-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.work-tags span,
.work-status,
.works-tags span,
.works-status {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: 999px;
  background-color: var(--color-section);
  color: var(--color-muted);
}

.work-status,
.works-status {
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  font-weight: 500;
}

/* ---------- 详情摘要面板 ---------- */

.summary-panel,
.detail-content {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.summary-panel h3,
.detail-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}

.summary-fields,
.detail-fields {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.field-row {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.6;
}

.field-row dt {
  flex: 0 0 68px;
  color: var(--color-muted);
}

.field-row dd {
  flex: 1;
  color: var(--color-ink);
}

.reading-tip,
.detail-note {
  padding: 12px 16px;
  background-color: var(--color-section);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

/* ---------- 题材场景卡 ---------- */

.genre-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.genre-scene-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.genre-scene-card h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
}

.genre-scene-card p {
  font-size: 14px;
  color: var(--color-muted);
  flex: 1;
}

.genre-scene-card a {
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.genre-scene-card a:hover {
  color: #d14f2c;
}

/* ---------- 阅读动线 ---------- */

.path-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.path-step {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.path-step h3 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
}

.path-step p {
  font-size: 14px;
  color: var(--color-muted);
  flex: 1;
}

.path-step a {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
}

.path-conclusion {
  max-width: var(--content-width);
  padding: 16px 20px;
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-section);
  font-size: 15px;
  color: var(--color-ink);
}

/* ---------- 更新记录 ---------- */

.update-mini-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.update-mini-list li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  color: var(--color-muted);
}

.update-mini-list time {
  flex-shrink: 0;
  color: var(--color-accent);
  font-weight: 500;
}

/* ---------- 相关内容 ---------- */

.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 24px 0;
  margin-top: 40px;
  border-top: 1px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-muted);
}

.related-links-item:hover {
  color: var(--color-accent);
}

/* ---------- 筛选标签 ---------- */

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

.filter-group-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  margin-right: 4px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background-color: var(--color-paper);
  color: var(--color-muted);
  transition: all 0.2s ease;
}

.tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.tag.is-selected {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.filter-hint {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

/* ---------- 作品库列表 ---------- */

.works-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.works-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.works-item:hover {
  border-color: var(--color-accent);
}

.works-item.is-active {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(36, 59, 74, 0.08);
}

.works-card {
  display: flex;
  gap: 16px;
  padding: 16px;
}

.works-thumb {
  flex-shrink: 0;
  width: 80px;
  height: 106px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-section);
}

.works-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.works-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.works-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.works-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.works-status {
  align-self: flex-start;
}

/* ---------- 字段说明表 ---------- */

.field-guide {
  margin-top: 48px;
}

.field-table,
.rules-table {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
}

.field-table th,
.field-table td,
.rules-table th,
.rules-table td {
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
  line-height: 1.6;
  border-bottom: 1px solid var(--color-border);
}

.field-table thead th,
.rules-table thead th {
  background-color: var(--color-section);
  font-weight: 600;
  color: var(--color-ink);
  font-size: 13px;
}

.field-table tbody tr:last-child td,
.rules-table tbody tr:last-child td {
  border-bottom: none;
}

.field-table tbody td:first-child,
.rules-table tbody td:first-child {
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
}

.field-note {
  font-size: 13px;
  color: var(--color-muted);
}

/* ---------- 手风琴 ---------- */

.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-trigger {
  border-bottom: 1px solid var(--color-border);
}

.accordion-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px 20px;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  color: var(--color-ink);
}

.accordion-btn::after {
  content: "+";
  font-size: 18px;
  font-weight: 400;
  color: var(--color-muted);
  transition: transform 0.2s ease;
}

.accordion-btn[aria-expanded="true"]::after {
  transform: rotate(45deg);
}

.accordion-panel {
  padding: 20px;
  display: none;
}

.accordion-btn[aria-expanded="true"] + .accordion-panel {
  display: block;
}

.subgenre-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.subgenre-list li {
  display: flex;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.subgenre-list li::before {
  content: "·";
  color: var(--color-accent);
  font-weight: 700;
}

.accordion-tip {
  padding: 12px 16px;
  background-color: var(--color-section);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-muted);
}

.accordion-tip a {
  color: var(--color-accent);
  font-weight: 500;
}

.panel-note {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

/* ---------- 场景卡（题材索引页） ---------- */

.scene-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scene-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scene-figure {
  width: 100%;
  height: 160px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-section);
}

.scene-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
}

.scene-desc {
  font-size: 14px;
  color: var(--color-muted);
  flex: 1;
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.scene-tags li {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: 999px;
  background-color: var(--color-section);
  color: var(--color-muted);
}

.scene-link {
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.scene-link:hover {
  color: #d14f2c;
}

/* ---------- 建议卡 ---------- */

.tips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.tip-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tip-title {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
}

.tip-desc {
  font-size: 13px;
  color: var(--color-muted);
  flex: 1;
  line-height: 1.6;
}

.tip-card a {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  align-self: flex-start;
}

/* ---------- FAQ 入口 ---------- */

.genre-faq-entry {
  margin-top: 48px;
  padding: 24px;
  background-color: var(--color-section);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.faq-entry-text {
  font-size: 14px;
  color: var(--color-muted);
  flex: 1;
  min-width: 240px;
}

.faq-entry-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

/* ---------- 更新日志 ---------- */

.log-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.log-entry {
  display: flex;
  gap: 20px;
  padding: 20px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.log-date {
  flex-shrink: 0;
  width: 80px;
}

.log-date time {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.4;
}

.log-content {
  flex: 1;
  min-width: 0;
}

.log-content h3 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.log-content p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.log-figure {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

.log-figure img {
  width: 56px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.log-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
}

/* ---------- 节奏说明卡 ---------- */

.rhythm-guide {
  margin-top: 48px;
}

.rhythm-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.rhythm-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rhythm-card h3 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent);
}

.rhythm-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- 跟踪提示 ---------- */

.tracking-tip {
  margin-top: 48px;
  padding: 24px;
  background-color: var(--color-section);
  border-radius: var(--radius-lg);
}

.tracking-tip h2 {
  margin-bottom: 12px;
}

.tip-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tip-content p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

.tip-content a {
  color: var(--color-accent);
  font-weight: 500;
}

/* ---------- 阅读指引步骤 ---------- */

.guide-steps {
  max-width: var(--content-width);
}

.guide-step {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.guide-step:last-of-type {
  border-bottom: none;
}

.step-head {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-heading h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.step-heading p {
  font-size: 14px;
  color: var(--color-muted);
}

.step-action {
  margin-bottom: 16px;
}

.step-action a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.step-conclusion {
  padding: 14px 18px;
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-section);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--color-ink);
}

.step-conclusion strong {
  font-weight: 600;
}

/* ---------- 延伸阅读 ---------- */

.guide-related {
  margin-top: 48px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.related-card {
  display: block;
  padding: 20px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}

.related-card:hover {
  border-color: var(--color-accent);
}

.related-card h3 {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.related-card p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- 内容配图 ---------- */

.content-media {
  margin-bottom: 24px;
}

.content-media img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.content-media figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.content-media-inline {
  max-width: var(--content-width);
}

/* ---------- FAQ ---------- */

.faq-section {
  max-width: var(--content-width);
}

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

.faq-group-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-ink);
  margin-bottom: 16px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::before {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: rotate(-45deg);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::before {
  transform: rotate(45deg);
}

.faq-question {
  font-size: 15px;
  font-weight: 600;
  flex: 1;
}

.faq-context {
  font-size: 13px;
  color: var(--color-muted);
  flex-shrink: 0;
  max-width: 40%;
  text-align: right;
}

.faq-badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: 999px;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  font-weight: 500;
  flex-shrink: 0;
}

.faq-answer {
  padding: 0 20px 20px;
  border-top: 1px solid var(--color-border);
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-ink);
  line-height: 1.7;
  margin-top: 16px;
}

.faq-answer a {
  color: var(--color-accent);
  font-weight: 500;
}

.faq-timeline {
  margin-top: 16px;
  padding: 14px 16px;
  background-color: var(--color-section);
  border-radius: var(--radius-sm);
}

.faq-timeline h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: 6px;
}

.faq-timeline p {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 4px;
}

/* ---------- 关于页 ---------- */

.about-section {
  max-width: var(--content-width);
  margin-bottom: 48px;
}

.about-section > p {
  font-size: 15px;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.positioning-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.positioning-list li {
  display: flex;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.positioning-list li::before {
  content: "·";
  color: var(--color-accent);
  font-weight: 700;
}

.positioning-list strong {
  color: var(--color-ink);
  font-weight: 600;
}

.rules-table-wrap {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
}

.about-figure {
  max-width: var(--content-width);
  margin-bottom: 48px;
}

.about-figure img {
  width: 100%;
  border-radius: var(--radius-md);
}

.about-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

/* ---------- 404 ---------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-panel {
  max-width: 560px;
  text-align: center;
  padding: 48px 40px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.error-code {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.error-panel h1 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.error-action {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.error-action:hover {
  background-color: #d14f2c;
  color: #ffffff;
}

.error-alt {
  font-size: 13px;
  color: var(--color-muted);
}

.error-alt a {
  color: var(--color-accent);
  margin: 0 4px;
}

/* ==========================================================================
   pages
   ========================================================================== */

/* ---------- 首页 ---------- */

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

.hero-wall {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--color-border);
}

.hero-copy h1 {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.hero-summary {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: 420px;
}

.hero-figure {
  position: relative;
}

.hero-figure img {
  width: 100%;
  border-radius: var(--radius-lg);
}

.hero-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

.genre-entry {
  padding: 48px 0;
}

.home-works-panel {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.works-duo-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.works-list-column {
  min-width: 0;
}

.group-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  margin: 24px 0 12px;
}

.group-title:first-child {
  margin-top: 0;
}

.works-summary-column {
  position: sticky;
  top: 24px;
}

.summary-panel {
  margin-bottom: 16px;
}

.reading-path {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.home-update-strip {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

/* ---------- 作品库 ---------- */

.layout-shell {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.sidebar-left {
  grid-template-columns: 380px 1fr;
}

.works-list-area {
  min-width: 0;
}

.detail-panel {
  position: sticky;
  top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---------- 题材索引 ---------- */

.genre-scene-section,
.genre-accordion-section,
.genre-tips-section {
  margin-bottom: 48px;
}

/* ---------- 连载动态 ---------- */

.update-log-section {
  margin-bottom: 48px;
}

/* ---------- 阅读指引 ---------- */

.guide-steps {
  max-width: var(--content-width);
}

/* ---------- FAQ ---------- */

.faq-section {
  max-width: var(--content-width);
}

/* ---------- 关于 ---------- */

.about-section {
  max-width: var(--content-width);
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .works-duo-layout,
  .layout-shell,
  .sidebar-left {
    grid-template-columns: 1fr 320px;
    gap: 24px;
  }

  .genre-card-grid,
  .scene-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .genre-card-grid .genre-scene-card:last-child,
  .scene-card-grid .scene-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
  }

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

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

  .rhythm-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .rhythm-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
  }

  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 60px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-paper);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list li a {
    padding: 12px 16px;
    font-size: 15px;
  }

  .inner-main,
  .home-main {
    padding: 0 16px 48px;
  }

  .page-header {
    padding: 8px 0 24px;
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 26px;
  }

  .hero-wall {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .works-duo-layout,
  .layout-shell,
  .sidebar-left {
    grid-template-columns: 1fr;
  }

  .sidebar-left .works-list-area {
    order: 2;
  }

  .sidebar-left .detail-panel {
    order: 1;
  }

  .works-summary-column,
  .detail-panel {
    position: static;
  }

  .genre-card-grid,
  .scene-card-grid {
    grid-template-columns: 1fr;
  }

  .genre-card-grid .genre-scene-card:last-child,
  .scene-card-grid .scene-card:last-child {
    grid-column: auto;
    max-width: none;
  }

  .tips-grid,
  .related-grid,
  .rhythm-cards {
    grid-template-columns: 1fr;
  }

  .rhythm-card:last-child {
    grid-column: auto;
    max-width: none;
  }

  .path-steps {
    grid-template-columns: 1fr;
  }

  .footer-columns {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .log-entry {
    flex-direction: column;
    gap: 12px;
  }

  .log-date {
    width: auto;
  }

  .faq-item summary {
    flex-wrap: wrap;
  }

  .faq-context {
    max-width: 100%;
    text-align: left;
    flex-basis: 100%;
    font-size: 12px;
  }

  .faq-badge {
    order: -1;
  }

  .genre-faq-entry {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 12px;
  }

  .inner-main,
  .home-main {
    padding: 0 12px 40px;
  }

  .page-title {
    font-size: 24px;
  }

  .section-title {
    font-size: 20px;
  }

  .hero-copy h1 {
    font-size: 26px;
  }

  .works-card {
    padding: 12px;
  }

  .works-thumb {
    width: 64px;
    height: 88px;
  }

  .work-item img {
    width: 60px;
    height: 80px;
  }

  .field-row {
    flex-direction: column;
    gap: 4px;
  }

  .field-row dt {
    flex-basis: auto;
    font-size: 13px;
  }

  .field-table th,
  .field-table td,
  .rules-table th,
  .rules-table td {
    padding: 10px 12px;
    font-size: 13px;
  }

  .field-table tbody td:first-child,
  .rules-table tbody td:first-child {
    white-space: normal;
  }

  .footer-columns {
    gap: 20px;
  }

  .error-panel {
    padding: 32px 20px;
  }
}