/* ==========================================================================
   热门黑料 · 站点样式
   base → layout → components → pages → responsive
   ========================================================================== */

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

:root {
  --paper: #F5F1E8;
  --ink: #1C2330;
  --cinnabar: #A63A2B;
  --slate: #3E5C74;
  --rule: #D8D2C4;
  --card: #FBF9F4;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --shell: 1080px;
}

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

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

body.site-body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.85;
  text-align: left;
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  line-height: 1.4;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
}

li {
  margin-bottom: 0.4em;
}

a {
  color: var(--slate);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--cinnabar);
}

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

figure {
  margin: 0;
}

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

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

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

/* --------------------------------------------------------------------------
   layout · 页头
   -------------------------------------------------------------------------- */

.site-header {
  background-color: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.brand-sub {
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.08em;
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background-color: var(--card);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--ink);
}

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

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

.nav-list li {
  margin: 0;
}

.nav-link {
  display: block;
  padding: 10px 11px;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--cinnabar);
  border-bottom-color: var(--rule);
}

.nav-link.is-current {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   layout · 主体与内页骨架
   -------------------------------------------------------------------------- */

.site-main {
  display: block;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--slate);
}

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

.breadcrumb a:hover,
.breadcrumb a:focus {
  color: var(--cinnabar);
}

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

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

.page-header {
  padding: 14px 0 0;
}

.page-title {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--ink);
  margin: 0;
}

.page-title-block,
.page-title-section,
.page-title {
  padding: 12px 0 26px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 34px;
}

.page-title-block .page-kicker,
.page-title-section .section-kicker,
.page-title .eyebrow,
.page-title .page-kicker,
.page-title .section-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cinnabar);
  margin: 0 0 8px;
  text-transform: uppercase;
}

.page-title-block .page-lead,
.page-title-section .page-lead,
.page-title .page-lede,
.page-title .page-lead {
  max-width: 40em;
  font-size: 15px;
  color: #3a4250;
  margin: 0 0 10px;
}

.page-title-block .page-meta,
.page-title-section .page-meta,
.page-title .page-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.04em;
  margin: 0;
}

/* 内页通用正文块 */
.inner-main section {
  margin-bottom: 44px;
}

.inner-main h2 {
  font-size: 22px;
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--cinnabar);
  line-height: 1.35;
}

.inner-main h3 {
  font-size: 17px;
  margin: 0 0 10px;
}

.inner-main p {
  max-width: 34em;
}

.section-intro,
.section-lede,
.section-lead {
  max-width: 40em;
  color: #3a4250;
  margin: 0 0 20px;
}

/* --------------------------------------------------------------------------
   layout · 页脚
   -------------------------------------------------------------------------- */

.site-footer {
  background-color: #EFEAE0;
  border-top: 1px solid var(--rule);
  margin-top: 20px;
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 44px 24px 30px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 32px;
}

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

.footer-brand {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin: 0 0 8px;
}

.footer-desc {
  font-size: 13px;
  line-height: 1.8;
  color: #4a5260;
  margin: 0;
  max-width: 22em;
}

.footer-heading {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--slate);
  margin: 0 0 12px;
  padding: 0;
  border: 0;
}

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

.footer-links li {
  margin: 0 0 8px;
}

.footer-links a {
  font-size: 13px;
  color: #3a4250;
}

.footer-links a:hover,
.footer-links a:focus {
  color: var(--cinnabar);
}

.footer-status-col p {
  font-size: 13px;
  line-height: 1.8;
  color: #4a5260;
  margin: 0;
  max-width: 26em;
}

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

.footer-bottom p {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px;
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   components · 通用
   -------------------------------------------------------------------------- */

.chip {
  display: inline-block;
  padding: 1px 8px;
  margin: 0 5px 5px 0;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  border: 1px solid var(--slate);
  border-radius: 2px;
  color: var(--slate);
  background-color: transparent;
  white-space: nowrap;
}

.chip-genre {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

.chip-view {
  color: var(--slate);
}

.chip-struct {
  color: #5a5344;
  border-color: #a89c84;
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  font-size: 14px;
  line-height: 1.4;
  border-radius: 4px;
  border: 1px solid var(--cinnabar);
  transition: background-color 160ms ease, color 160ms ease;
}

.btn-primary {
  background-color: var(--cinnabar);
  color: #FBF9F4;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #8c2f22;
  color: #FBF9F4;
}

.btn-ghost {
  background-color: transparent;
  color: var(--cinnabar);
  border-color: var(--rule);
}

.btn-ghost:hover,
.btn-ghost:focus {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.link-more {
  display: inline-block;
  font-size: 14px;
  color: var(--cinnabar);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: border-color 160ms ease;
}

.link-more:hover,
.link-more:focus {
  border-bottom-color: var(--cinnabar);
}

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

.section-title {
  font-size: 22px;
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--cinnabar);
  line-height: 1.35;
}

.media-figure,
.content-figure,
.entry-figure,
.guide-figure,
.faq-figure,
.summary-figure,
.hero-figure {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
}

.media-figure img,
.content-figure img,
.entry-figure img,
.guide-figure img,
.faq-figure img,
.summary-figure img,
.hero-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.media-figure figcaption,
.content-figure figcaption,
.entry-figure figcaption,
.guide-figure figcaption,
.faq-figure figcaption,
.summary-figure figcaption,
.hero-figure figcaption {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
  border-top: 1px solid var(--rule);
}

/* 表格通用 */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background-color: var(--card);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background-color: var(--card);
}

.compare-table,
.data-table,
.table-scroll table {
  width: 100%;
  min-width: 680px;
  font-size: 13.5px;
}

.table-caption,
.table-scroll caption,
.data-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--rule);
}

.compare-table thead th,
.data-table thead th,
.table-scroll thead th {
  background-color: #EDE7DA;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--slate);
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

.compare-table tbody th,
.data-table tbody th,
.table-scroll tbody th {
  text-align: left;
  font-weight: 600;
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  background-color: #F3EEE4;
  white-space: nowrap;
}

.compare-table tbody td,
.data-table tbody td,
.table-scroll tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
  color: #3a4250;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td,
.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td,
.table-scroll tbody tr:last-child th,
.table-scroll tbody tr:last-child td {
  border-bottom: 0;
}

.table-note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 46em;
}

.table-note a {
  color: var(--cinnabar);
  border-bottom: 1px solid var(--rule);
}

/* 摘要框 */
.summary-box {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--cinnabar);
  border-radius: 4px;
  padding: 18px 20px;
  margin: 0 0 18px;
}

.summary-conclusion {
  font-size: 15px;
  line-height: 1.85;
  margin: 0 0 12px;
  max-width: 36em;
}

.summary-points {
  margin: 0;
  padding-left: 1.2em;
}

.summary-points li {
  font-size: 14px;
  line-height: 1.8;
  color: #3a4250;
  margin-bottom: 6px;
}

.summary-points li:last-child {
  margin-bottom: 0;
}

/* 折叠问答 */
.faq-list {
  border-top: 1px solid var(--rule);
}

.faq-item {
  border-bottom: 1px solid var(--rule);
  background-color: transparent;
}

.faq-question {
  list-style: none;
  cursor: pointer;
  padding: 15px 34px 15px 0;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  transition: color 160ms ease;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 18px;
  color: var(--cinnabar);
  line-height: 1;
}

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

.faq-question:hover,
.faq-question:focus {
  color: var(--cinnabar);
}

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

.faq-answer p {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  margin: 0 0 10px;
  max-width: 40em;
}

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

.faq-close {
  display: inline-block;
  padding: 5px 12px;
  font-size: 12px;
  color: var(--slate);
  background-color: transparent;
  border: 1px solid var(--rule);
  border-radius: 3px;
  transition: border-color 160ms ease, color 160ms ease;
}

.faq-close:hover,
.faq-close:focus {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.faq-more {
  margin: 8px 0 0;
}

.faq-more a {
  font-size: 13px;
  color: var(--cinnabar);
  border-bottom: 1px solid var(--rule);
}

/* 条目卡通用 */
.entry-card {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  transition: border-color 160ms ease;
}

.entry-card:hover {
  border-color: #b9b0a0;
}

.entry-title {
  font-size: 16px;
  margin: 0 0 8px;
  line-height: 1.45;
}

.entry-tags {
  margin: 0 0 10px;
}

.entry-desc {
  font-size: 13.5px;
  line-height: 1.8;
  color: #3a4250;
  margin: 0 0 14px;
  flex: 1 1 auto;
}

.entry-link {
  font-size: 13px;
  color: var(--cinnabar);
  border-bottom: 1px solid var(--rule);
  align-self: flex-start;
  transition: border-color 160ms ease;
}

.entry-link:hover,
.entry-link:focus {
  border-bottom-color: var(--cinnabar);
}

.entry-name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
  line-height: 1.45;
}

.entry-struct {
  font-size: 13.5px;
  line-height: 1.8;
  color: #3a4250;
  margin: 0 0 14px;
  flex: 1 1 auto;
}

.section-foot {
  margin: 20px 0 0;
}

/* 入口条通用 */
.entry-strip {
  border-top: 1px solid var(--rule);
  padding-top: 26px;
}

.entry-strip-list,
.strip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.entry-strip-list li,
.strip-list li {
  margin: 0;
  padding: 14px 16px;
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  min-width: 0;
}

.entry-strip-list a,
.strip-list a {
  display: block;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
  transition: color 160ms ease;
}

.entry-strip-list a:hover,
.strip-list a:hover {
  color: var(--cinnabar);
}

.entry-strip-desc {
  display: block;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

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

.home-main {
  display: block;
}

.hero {
  border-bottom: 1px solid var(--rule);
  background-color: #F2EDE2;
}

.hero-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 52px 24px 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 48px;
  align-items: start;
}

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

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cinnabar);
  margin: 0 0 14px;
  text-transform: uppercase;
}

.hero-text h1 {
  font-size: 38px;
  line-height: 1.32;
  margin: 0 0 18px;
  letter-spacing: 0.02em;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 32em;
  margin: 0 0 26px;
}

.step-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}

.hero .step-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 0 0 16px;
  margin: 0 0 16px;
  border-bottom: 1px dashed var(--rule);
}

.hero .step-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

.hero .step-num {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cinnabar);
  border: 1px solid var(--cinnabar);
  border-radius: 50%;
  line-height: 1;
}

.hero .step-body {
  min-width: 0;
  flex: 1 1 auto;
}

.hero .step-title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 4px;
  line-height: 1.5;
}

.hero .step-body p {
  font-size: 13.5px;
  line-height: 1.8;
  color: #4a5260;
  margin: 0;
}

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

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

.hero-figure img {
  aspect-ratio: 4 / 3;
}

/* 题材对比总览 */
.subject-compare {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 0;
}

/* 写法拆解执行摘要 */
.anatomy-summary {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 0;
}

.summary-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 44px;
  align-items: start;
}

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

.summary-lead {
  font-size: 15px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 34em;
  margin: 0 0 20px;
}

.summary-figure {
  min-width: 0;
}

.summary-figure img {
  aspect-ratio: 5 / 4;
}

/* 书目条目精选 */
.catalog-highlights {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 0;
}

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

/* 常见问题速览 */
.faq-brief {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 0;
}

/* 站点说明与入口条 */
.site-note {
  max-width: var(--shell);
  margin: 56px auto 0;
  padding: 0 24px;
}

.note-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 44px;
  padding: 30px 32px;
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  align-items: start;
}

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

.note-text p {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 34em;
  margin: 0 0 12px;
}

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

.note-links {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  border-top: 1px solid var(--rule);
}

.note-link {
  display: block;
  padding: 12px 0;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  transition: color 160ms ease, padding-left 160ms ease;
}

.note-link:hover,
.note-link:focus {
  color: var(--cinnabar);
  padding-left: 4px;
}

/* 相关内容条 */
.related-links {
  max-width: var(--shell);
  margin: 32px auto 0;
  padding: 0 24px 48px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
}

.related-links-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.related-links-item {
  font-size: 13.5px;
  color: var(--slate);
  border-bottom: 1px solid var(--rule);
  transition: color 160ms ease, border-color 160ms ease;
}

.related-links-item:hover,
.related-links-item:focus {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

/* --------------------------------------------------------------------------
   pages · 题材档案
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  padding: 8px 14px;
  background-color: var(--ink);
  color: #FBF9F4;
  font-size: 13px;
  z-index: 100;
  transform: translateY(-120%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
  color: #FBF9F4;
}

.division-basis .basis-text p {
  max-width: 40em;
  color: #3a4250;
}

.division-basis .media-figure {
  margin-top: 18px;
  max-width: 720px;
}

.division-basis .media-figure img {
  aspect-ratio: 16 / 9;
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.genre-block {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 20px 22px;
  min-width: 0;
}

.genre-block h3 {
  font-size: 18px;
  margin: 0 0 10px;
}

.genre-tags {
  margin: 0 0 12px;
}

.genre-facts {
  margin: 0 0 14px;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 6.5em minmax(0, 1fr);
  gap: 6px 12px;
}

.genre-facts dt {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.02em;
}

.genre-facts dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: #3a4250;
}

.genre-block > p {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  margin: 0 0 14px;
}

.genre-link {
  font-size: 13px;
  color: var(--cinnabar);
  border-bottom: 1px solid var(--rule);
  transition: border-color 160ms ease;
}

.genre-link:hover,
.genre-link:focus {
  border-bottom-color: var(--cinnabar);
}

/* --------------------------------------------------------------------------
   pages · 书目索引
   -------------------------------------------------------------------------- */

.page-shell {
  padding-top: 0;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
  gap: 44px;
  align-items: start;
}

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

.page-content .breadcrumb {
  padding-top: 22px;
}

.page-content .page-header {
  padding: 14px 0 0;
  border-bottom: 0;
  margin-bottom: 0;
}

.page-content .page-title {
  padding: 0 0 26px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 34px;
}

.entry-intro {
  margin-bottom: 40px;
}

.entry-intro h2,
.entry-list h2 {
  font-size: 22px;
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--cinnabar);
  line-height: 1.35;
}

.entry-intro .section-intro {
  max-width: 40em;
  color: #3a4250;
  margin: 0 0 20px;
}

.entry-figure {
  max-width: 640px;
}

.entry-figure img {
  aspect-ratio: 16 / 9;
}

.entry-group {
  margin-bottom: 32px;
}

.entry-group:last-child {
  margin-bottom: 0;
}

.entry-group-title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
}

.entry-list .entry-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.page-aside {
  min-width: 0;
  padding-top: 22px;
}

.aside-block {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 20px;
}

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

.aside-title {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin: 0 0 10px;
  padding: 0;
  border: 0;
}

.aside-intro {
  font-size: 13px;
  line-height: 1.8;
  color: #4a5260;
  margin: 0 0 12px;
}

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

.legend-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  line-height: 1.75;
  color: #3a4250;
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}

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

.aside-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--cinnabar);
  border-bottom: 1px solid var(--rule);
}

.page-shell .entry-strip {
  margin-top: 40px;
}

/* --------------------------------------------------------------------------
   pages · 写法拆解
   -------------------------------------------------------------------------- */

.exec-summary .summary-box {
  margin-bottom: 22px;
}

.exec-summary .summary-figure {
  max-width: 760px;
}

.exec-summary .summary-figure img {
  aspect-ratio: 16 / 9;
}

.article-toc {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 18px 22px;
  margin-bottom: 44px;
}

.toc-heading {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin: 0 0 10px;
  padding: 0;
  border: 0;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 24px;
}

.toc-list li {
  margin: 0;
}

.toc-list a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.toc-list a:hover,
.toc-list a:focus {
  color: var(--cinnabar);
  border-bottom-color: var(--rule);
}

.section-steps .step-block {
  padding: 0 0 22px;
  margin: 0 0 22px;
  border-bottom: 1px solid var(--rule);
}

.section-steps .step-block:last-child {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

.section-steps .step-index {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
  margin: 0 0 6px;
}

.section-steps .step-block h3 {
  font-size: 17px;
  margin: 0 0 10px;
}

.section-steps .step-block p {
  font-size: 14.5px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 40em;
  margin: 0 0 10px;
}

.section-steps .step-block p:last-child {
  margin-bottom: 0;
}

.rhythm-table-section .data-table {
  min-width: 620px;
}

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

.defect-item {
  padding: 0 0 16px;
  margin: 0 0 16px;
  border-bottom: 1px dashed var(--rule);
}

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

.defect-name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
}

.defect-item p {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  margin: 0;
  max-width: 40em;
}

.sources {
  border-top: 1px solid var(--rule);
  padding-top: 24px;
  margin-top: 44px;
}

.sources h2 {
  font-size: 18px;
}

.sources > p {
  font-size: 13.5px;
  line-height: 1.85;
  color: #4a5260;
  max-width: 42em;
}

.source-items {
  margin: 0 0 14px;
  padding-left: 1.2em;
}

.source-items li {
  font-size: 13px;
  line-height: 1.8;
  color: #4a5260;
  margin-bottom: 6px;
}

.source-links {
  font-size: 13px;
  color: var(--slate);
  margin: 0;
}

.source-links a {
  color: var(--cinnabar);
  margin-right: 14px;
  border-bottom: 1px solid var(--rule);
}

/* --------------------------------------------------------------------------
   pages · 阅读路径
   -------------------------------------------------------------------------- */

.page-container {
  padding-top: 0;
}

.page-container .page-title {
  padding: 12px 0 26px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 34px;
}

.page-container .page-title .section-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cinnabar);
  margin: 0 0 8px;
}

.page-container .page-title .page-lead {
  max-width: 40em;
  font-size: 15px;
  color: #3a4250;
  margin: 0 0 10px;
}

.page-container .page-title .page-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.04em;
  margin: 0;
}

.step-flow .guide-figure {
  max-width: 760px;
  margin: 0 0 26px;
}

.step-flow .guide-figure img {
  aspect-ratio: 16 / 9;
}

.step-flow .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.step-flow .step-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 0 0 26px;
  margin: 0 0 26px;
  border-bottom: 1px solid var(--rule);
}

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

.step-flow .step-marker {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--cinnabar);
  border-radius: 50%;
  background-color: var(--card);
}

.step-flow .step-num {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--cinnabar);
  line-height: 1;
}

.step-flow .step-body {
  min-width: 0;
  flex: 1 1 auto;
}

.step-flow .step-title {
  font-size: 17px;
  margin: 0 0 8px;
}

.step-flow .step-criteria,
.step-flow .step-result {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 40em;
  margin: 0 0 8px;
}

.step-flow .step-result {
  margin-bottom: 0;
  color: #4a5260;
}

.branch-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.branch-card {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 20px;
  min-width: 0;
}

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

.branch-scene,
.branch-advance {
  font-size: 13.5px;
  line-height: 1.8;
  color: #3a4250;
  margin: 0 0 10px;
}

.branch-advance {
  margin-bottom: 0;
}

.branch-label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-bottom: 3px;
}

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

.pitfall-item {
  padding: 0 0 16px;
  margin: 0 0 16px;
  border-bottom: 1px dashed var(--rule);
}

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

.pitfall-name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
}

.pitfall-fix {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  margin: 0;
  max-width: 40em;
}

.guide-next {
  border-top: 1px solid var(--rule);
  padding-top: 26px;
}

.next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 28px;
}

.next-links li {
  margin: 0;
  min-width: 0;
}

.next-links a {
  display: block;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 3px;
  transition: color 160ms ease;
}

.next-links a:hover,
.next-links a:focus {
  color: var(--cinnabar);
}

.next-desc {
  display: block;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

/* --------------------------------------------------------------------------
   pages · 常见问题
   -------------------------------------------------------------------------- */

.faq-group {
  margin-bottom: 44px;
}

.section-heading {
  font-size: 22px;
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--cinnabar);
  line-height: 1.35;
}

.faq-figure {
  max-width: 720px;
  margin: 0 0 22px;
}

.faq-figure img {
  aspect-ratio: 16 / 9;
}

.faq-figure-caption {
  font-size: 12px;
}

/* --------------------------------------------------------------------------
   pages · 关于本站
   -------------------------------------------------------------------------- */

.site-position p {
  font-size: 14.5px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 40em;
}

.site-position .content-figure {
  max-width: 720px;
  margin-top: 18px;
}

.site-position .content-figure img {
  aspect-ratio: 16 / 9;
}

.column-map-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.column-map-item {
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 18px 20px;
  margin: 0;
  min-width: 0;
}

.column-map-name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
}

.column-map-name a {
  color: var(--ink);
  transition: color 160ms ease;
}

.column-map-name a:hover,
.column-map-name a:focus {
  color: var(--cinnabar);
}

.column-map-desc {
  font-size: 13.5px;
  line-height: 1.8;
  color: #3a4250;
  margin: 0;
}

.principles .principle-item {
  padding: 0 0 18px;
  margin: 0 0 18px;
  border-bottom: 1px solid var(--rule);
  max-width: 42em;
}

.principles .principle-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

.principle-title {
  font-size: 17px;
  margin: 0 0 8px;
}

.principle-item p {
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  margin: 0;
}

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

.boundary-item {
  padding: 12px 0;
  margin: 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 14px;
  line-height: 1.85;
  color: #3a4250;
  max-width: 42em;
}

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

.boundary-item strong {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink);
  margin-right: 6px;
}

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

.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 64px 24px 72px;
}

.error-panel {
  max-width: 620px;
  background-color: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 36px 32px;
}

.error-code {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cinnabar);
  margin: 0 0 12px;
}

.error-panel h1 {
  font-size: 28px;
  margin: 0 0 14px;
  line-height: 1.4;
}

.error-lead {
  font-size: 15px;
  line-height: 1.85;
  color: #3a4250;
  margin: 0 0 18px;
}

.error-hint-list {
  margin: 0 0 26px;
  padding-left: 1.2em;
}

.error-hint-list li {
  font-size: 14px;
  line-height: 1.8;
  color: #4a5260;
  margin-bottom: 6px;
}

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

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

@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 28px;
  }

  .footer-status-col {
    grid-column: 1 / -1;
  }

  .page-layout {
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 40px 24px 44px;
  }

  .hero-figure {
    order: 2;
  }

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

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

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

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

  .branch-card:last-child {
    grid-column: 1 / -1;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }

  .page-aside {
    padding-top: 0;
  }

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

@media (max-width: 768px) {
  .header-inner {
    padding: 0 18px;
    min-height: 60px;
    flex-wrap: wrap;
    gap: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex: 1 1 100%;
    display: block;
    justify-content: flex-start;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 12px;
    border-top: 1px solid var(--rule);
  }

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

  .nav-link {
    padding: 13px 4px;
    font-size: 15px;
    border-bottom: 1px solid var(--rule);
    border-left: 2px solid transparent;
  }

  .nav-link.is-current {
    border-bottom-color: var(--rule);
    border-left-color: var(--cinnabar);
    padding-left: 10px;
  }

  .inner-main {
    padding: 0 18px 48px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 12.5px;
  }

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

  .page-title-block,
  .page-title-section,
  .page-title {
    padding: 10px 0 20px;
    margin-bottom: 26px;
  }

  .inner-main section {
    margin-bottom: 36px;
  }

  .inner-main h2,
  .section-title,
  .section-heading {
    font-size: 19px;
  }

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

  .hero-lead {
    font-size: 15px;
  }

  .hero-inner {
    padding: 32px 18px 36px;
  }

  .subject-compare,
  .anatomy-summary,
  .catalog-highlights,
  .faq-brief {
    padding: 40px 18px 0;
  }

  .site-note {
    margin-top: 40px;
    padding: 0 18px;
  }

  .note-inner {
    padding: 22px 20px;
  }

  .related-links {
    padding: 0 18px 40px;
    margin-top: 24px;
  }

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

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

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

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

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

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

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

  .branch-card:last-child {
    grid-column: auto;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 22px;
    padding: 34px 18px 24px;
  }

  .footer-status-col {
    grid-column: 1 / -1;
  }

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

  .error-main {
    padding: 40px 18px 52px;
  }

  .error-panel {
    padding: 26px 22px;
  }

  .error-panel h1 {
    font-size: 22px;
  }

  .step-flow .step-item {
    gap: 14px;
  }

  .step-flow .step-marker {
    flex-basis: 34px;
    width: 34px;
    height: 34px;
  }

  .step-flow .step-num {
    font-size: 13px;
  }

  .page-shell .page-content .breadcrumb {
    padding-top: 16px;
  }

  .page-content .page-title {
    padding-bottom: 20px;
    margin-bottom: 26px;
  }
}

@media (max-width: 480px) {
  body.site-body {
    font-size: 14.5px;
  }

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

  .brand-sub {
    font-size: 10px;
  }

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

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    text-align: center;
  }

  .note-inner {
    padding: 18px 16px;
  }

  .genre-block,
  .entry-card,
  .branch-card,
  .column-map-item,
  .aside-block {
    padding: 16px;
  }

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

  .genre-facts dt {
    margin-top: 6px;
  }

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

  .footer-status-col {
    grid-column: auto;
  }

  .faq-question {
    font-size: 15px;
    padding-right: 28px;
  }

  .summary-box {
    padding: 16px;
  }

  .article-toc {
    padding: 16px;
  }

  .error-panel {
    padding: 22px 18px;
  }

  .error-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .error-actions .btn {
    text-align: center;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* 程序验收反馈：移动端防溢出 */
@media (max-width: 768px) {
  .site-main,
  .site-main * {
    min-width: 0;
    max-width: 100%;
  }

  .site-main :is(h1, h2, h3, h4, p, a, span) {
    overflow-wrap: anywhere;
  }
}