:root {
  --ink: #101114;
  --ink-soft: #5c6169;
  --paper: #f7f7f5;
  --card: #ffffff;
  --accent: #4b3dff;
  --line: #e6e6e2;
  --radius: 8px;
  --shell: 1120px;
  --reading: 68ch;
  --gap-lg: 64px;
  --gap-md: 40px;
  --gap-sm: 24px;
  --font-stack: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

p {
  margin: 0;
}

ul,
ol,
dl {
  margin: 0;
  padding: 0;
  list-style: none;
}

figure {
  margin: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 247, 245, 0.96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

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

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list a {
  display: inline-block;
  padding: 8px 12px;
  font-size: 15px;
  color: var(--ink-soft);
  border-radius: var(--radius);
  transition: color 0.18s ease, background-color 0.18s ease;
}

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

.nav-list a.is-current {
  color: var(--accent);
  font-weight: 600;
  background: #eeecff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

.site-main {
  display: block;
}

.home-main,
.inner-main,
.error-main {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.site-footer {
  background: var(--card);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 48px 24px 32px;
}

.footer-brand-name {
  font-size: 17px;
  font-weight: 600;
}

.footer-brand-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 34ch;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  font-size: 14px;
  color: var(--ink-soft);
}

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

.footer-bottom {
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

.section-title {
  font-size: 22px;
}

.section-sub,
.section-intro,
.section-lead {
  margin-top: 10px;
  max-width: var(--reading);
  font-size: 15px;
  color: var(--ink-soft);
}

.section-more {
  margin-top: 20px;
  font-size: 15px;
}

.section-more a {
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease;
}

.section-more a:hover {
  border-bottom-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: #392cd6;
}

.btn-ghost {
  border-color: var(--line);
  background: var(--card);
  color: var(--ink);
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 4px;
  font-size: 14px;
  color: var(--ink-soft);
}

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

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

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

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

.page-header {
  padding: 12px 0 8px;
}

.page-title {
  font-size: 32px;
  font-weight: 600;
}

.page-hero {
  padding: 8px 0 0;
  margin-bottom: var(--gap-md);
}

.page-hero-lead,
.page-lead {
  max-width: var(--reading);
  font-size: 16px;
  color: var(--ink-soft);
}

.page-hero-tags,
.page-tags,
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-hero-tags li,
.page-tags li,
.hero-tags li {
  padding: 4px 12px;
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.related-links {
  margin-top: var(--gap-lg);
}

.related-links h2 {
  font-size: 22px;
}

.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 16px;
}

.related-list a {
  display: inline-block;
  padding: 8px 0;
  font-size: 15px;
  color: var(--accent);
  border-bottom: 1px solid transparent;
}

.related-list a:hover {
  border-bottom-color: var(--accent);
}

.media-block {
  display: grid;
  align-items: center;
  gap: var(--gap-md);
  margin-top: var(--gap-md);
}

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

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

.media-block-b .media-text {
  order: 1;
}

.media-block-b .media-figure {
  order: 2;
}

.media-figure {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
}

.media-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.media-figure figcaption,
.page-figure figcaption,
.content-figure figcaption,
.faq-group-media figcaption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--card);
}

.media-text h2,
.media-text h3 {
  font-size: 20px;
}

.media-text p {
  margin-top: 12px;
  max-width: var(--reading);
  color: var(--ink-soft);
}

.page-figure {
  margin: 0 0 var(--gap-md);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.page-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.content-figure {
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.content-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

/* FAQ 折叠 */

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.faq-item + .faq-item {
  margin-top: 10px;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
  padding: 14px 18px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
}

.faq-item[open] .faq-question::after {
  content: "–";
}

.faq-answer {
  padding: 0 18px 16px;
}

.faq-answer p {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--ink-soft);
}

/* ==========================================================================
   pages — 首页
   ========================================================================== */

.hero {
  padding: var(--gap-md) 0 var(--gap-lg);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: var(--gap-md);
}

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

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: normal;
  color: var(--accent);
  text-transform: none;
}

.hero-text h1 {
  margin-top: 12px;
  font-size: 38px;
  font-weight: 600;
}

.hero-lead {
  margin-top: 16px;
  max-width: 46ch;
  font-size: 16px;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.hero-media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.hero-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.quick-entry,
.genre-tags,
.cover-wall,
.rhythm-cards,
.rank-dimensions,
.character-preview,
.reading-order,
.reader-settings,
.faq-teaser {
  margin-top: var(--gap-lg);
}

.entry-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.entry-card a {
  display: block;
  height: 100%;
  padding: 22px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease;
}

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

.entry-name {
  font-size: 18px;
}

.entry-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 18px;
  font-size: 15px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, color 0.18s ease;
}

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

.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.cover-card a {
  display: block;
  height: 100%;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease;
}

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

.cover-media {
  overflow: hidden;
  background: #ececeb;
}

.cover-media img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.cover-name {
  padding: 16px 18px 0;
  font-size: 17px;
}

.cover-desc {
  padding: 6px 18px 18px;
  font-size: 14px;
  color: var(--ink-soft);
}

.rhythm-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.rhythm-card {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.rhythm-name {
  font-size: 17px;
}

.rhythm-interval {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink);
}

.rhythm-fit {
  margin-top: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

.dimension-list {
  margin-top: 24px;
  border-top: 1px solid var(--line);
}

.dimension-item {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr) minmax(0, 1.6fr);
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.dimension-name {
  font-size: 16px;
  font-weight: 600;
}

.dimension-target,
.dimension-use {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.character-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.character-card {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.character-name {
  font-size: 17px;
}

.character-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.reader-demo {
  margin-top: 24px;
  padding: 26px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.reader-demo-text {
  max-width: var(--reading);
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
}

.reader-scale {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.reader-scale-item {
  padding: 6px 16px;
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.faq-teaser .faq-list {
  margin-top: 24px;
}

/* ==========================================================================
   pages — 内页通用区块
   ========================================================================== */

.inner-main section {
  margin-top: var(--gap-lg);
}

.inner-main section:first-of-type {
  margin-top: 0;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  font-size: 22px;
}

.section-head p {
  margin-top: 10px;
  max-width: var(--reading);
  font-size: 15px;
  color: var(--ink-soft);
}

.inner-main h2 {
  font-size: 22px;
}

/* 题材图鉴 */

.genre-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.genre-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.genre-figure {
  overflow: hidden;
  background: #ececeb;
}

.genre-figure img {
  width: 100%;
  height: 210px;
  object-fit: cover;
}

.genre-card h3 {
  padding: 18px 20px 0;
  font-size: 18px;
}

.genre-card-note {
  padding: 8px 20px 0;
  font-size: 14px;
  color: var(--ink);
}

.genre-card-scene {
  padding: 6px 20px 20px;
  font-size: 14px;
  color: var(--ink-soft);
}

.elements-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.4fr);
  gap: 24px;
  margin-top: 24px;
}

.elements-labels {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.element-label {
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.element-label h3 {
  font-size: 16px;
}

.element-label-sub {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}

.elements-notes {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.element-note {
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.element-note h3 {
  font-size: 16px;
}

.element-note p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.choice-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.choice-block {
  padding: 22px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.choice-block h3 {
  font-size: 17px;
}

.choice-block p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* 角色索引 */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
  margin-top: var(--gap-md);
}

.page-content {
  min-width: 0;
}

.page-content section {
  margin-top: var(--gap-lg);
}

.page-content section:first-of-type {
  margin-top: 0;
}

.role-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.role-card {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.role-card h3 {
  font-size: 17px;
}

.role-card-role {
  margin-top: 8px;
  font-size: 14px;
  color: var(--accent);
}

.role-card p:last-child {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.structure-rows {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.structure-row {
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.structure-row h3 {
  font-size: 16px;
}

.structure-row p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.reading-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.reading-point {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.reading-point h3 {
  font-size: 16px;
}

.reading-point p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.page-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 88px;
}

.aside-block {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.aside-block .related-list {
  flex-direction: column;
  gap: 4px;
  margin-top: 12px;
}

.aside-block .related-list a {
  padding: 6px 0;
  font-size: 14px;
}

/* 追更与阅读顺序 */

.rhythm-types .rhythm-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 24px;
  border-top: 1px solid var(--line);
}

.rhythm-item {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr) minmax(0, 1.3fr);
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.rhythm-item h3 {
  font-size: 16px;
}

.rhythm-item .rhythm-interval,
.rhythm-item .rhythm-fit {
  margin: 0;
  font-size: 14px;
}

.rhythm-item .rhythm-interval {
  color: var(--ink);
}

.rhythm-item .rhythm-fit {
  color: var(--ink-soft);
}

.order-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
  counter-reset: step;
}

.order-step {
  position: relative;
  padding: 18px 20px 18px 62px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  counter-increment: step;
}

.order-step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 18px;
  left: 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}

.order-step h3 {
  font-size: 16px;
}

.order-step p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.habit-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.habit-item {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.habit-item h3 {
  font-size: 16px;
}

.habit-item p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* 榜单观察 */

.rank-dimensions .dimension-list {
  counter-reset: dim;
}

.rank-dimensions .dimension-item {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr) minmax(0, 1.6fr);
}

.rank-dimensions .dimension-name {
  font-size: 16px;
}

.method-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.method-block {
  padding: 22px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.method-block h3 {
  font-size: 17px;
}

.method-block p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.misreading-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.misreading-card {
  padding: 22px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.misreading-card h3 {
  font-size: 17px;
}

.misreading-card p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* 阅读体验 */

.font-demo-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  gap: 24px;
  margin-top: 24px;
}

.font-demo-controls,
.font-demo-preview {
  padding: 22px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.font-demo-controls h3,
.font-demo-preview h3 {
  font-size: 17px;
}

.font-demo-controls > p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.font-size-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.font-size-btn {
  min-height: 44px;
  padding: 8px 20px;
  font-size: 15px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.font-size-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.font-size-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.font-demo-notes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 18px;
}

.font-demo-notes li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--ink-soft);
}

.font-demo-notes li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.font-demo-label {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.font-demo-value {
  font-weight: 600;
  color: var(--accent);
}

.font-demo-sample {
  margin-top: 14px;
  padding: 18px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 17px;
  line-height: 1.9;
}

.font-demo-sample p + p {
  margin-top: 12px;
}

.screen-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.screen-col {
  padding: 22px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.screen-col h3 {
  font-size: 17px;
}

.screen-col > p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.screen-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.screen-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--ink-soft);
}

.screen-points li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.pace-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.pace-list li {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.pace-list h3 {
  font-size: 16px;
}

.pace-list p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* 常见问题 */

.faq-group {
  margin-top: var(--gap-lg);
}

.faq-group-header {
  margin-bottom: 20px;
}

.faq-group-header h2 {
  font-size: 22px;
}

.faq-group-desc {
  margin-top: 10px;
  max-width: var(--reading);
  font-size: 15px;
  color: var(--ink-soft);
}

.faq-group-media {
  margin-bottom: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.faq-group-media img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

/* 404 */

.error-main {
  padding-top: 64px;
}

.error-panel {
  max-width: 640px;
  padding: 40px 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-code {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.error-panel h1 {
  margin-top: 12px;
  font-size: 32px;
}

.error-text {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink-soft);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.error-links a {
  font-size: 15px;
  color: var(--accent);
  border-bottom: 1px solid transparent;
}

.error-links a:hover {
  border-bottom-color: var(--accent);
}

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

@media (max-width: 1024px) {
  .hero-text h1 {
    font-size: 32px;
  }

  .hero-media img {
    height: 320px;
  }

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

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

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .page-aside {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .page-aside .aside-block {
    flex: 1 1 260px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 12px 20px;
  }

  .nav-toggle {
    display: flex;
    order: 3;
  }

  .site-nav {
    order: 4;
    flex: 1 1 100%;
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 12px;
    padding: 8px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

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

  .nav-list a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 14px;
    font-size: 16px;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding: 0 20px 56px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    padding: 40px 20px 28px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom p {
    padding: 16px 20px 22px;
  }

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

  .hero-media img {
    height: 260px;
  }

  .entry-list,
  .choice-blocks,
  .pace-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .genre-grid,
  .role-cards,
  .reading-points,
  .method-columns,
  .misreading-cards,
  .screen-compare,
  .habit-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .elements-layout,
  .font-demo-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .dimension-item,
  .rhythm-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .media-block-a,
  .media-block-b {
    grid-template-columns: minmax(0, 1fr);
  }

  .media-block-b .media-text {
    order: 2;
  }

  .media-block-b .media-figure {
    order: 1;
  }

  .media-figure img {
    height: 220px;
  }

  .page-figure img,
  .content-figure img {
    height: 220px;
  }

  .faq-group-media img {
    height: 200px;
  }

  .page-title,
  .error-panel h1 {
    font-size: 26px;
  }

  .section-title,
  .inner-main h2,
  .related-links h2,
  .faq-group-header h2,
  .section-head h2 {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .home-main,
  .inner-main,
  .error-main {
    padding: 0 16px 48px;
  }

  .header-inner,
  .footer-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-bottom p {
    padding-left: 16px;
    padding-right: 16px;
  }

  .brand {
    font-size: 17px;
  }

  .hero-text h1 {
    font-size: 24px;
  }

  .page-title,
  .error-panel h1 {
    font-size: 24px;
  }

  .entry-list,
  .cover-grid,
  .rhythm-list,
  .character-list,
  .choice-blocks,
  .pace-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

  .reader-demo {
    padding: 22px 18px;
  }

  .font-demo-sample {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
  }
}