/* ==========================================================================
   在线吃瓜观看 · 全站样式
   base / layout / components / pages / responsive
   ========================================================================== */

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

:root {
  --paper: #F5F3EF;
  --ink: #14130F;
  --stone: #6F6862;
  --line: #D8D2C7;
  --accent: #9A3B2A;
  --white: #FFFFFF;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --wrap: 1180px;
  --gap: 40px;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.85;
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  line-height: 1.32;
}

p {
  margin: 0 0 14px;
}

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

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

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

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

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

figure {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

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

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  background: var(--ink);
  color: var(--white);
  padding: 10px 16px;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 12px;
  color: var(--white);
}

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

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

.header-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gap);
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.brand {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

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

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 26px;
}

.site-nav a {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--stone);
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.site-nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--line);
}

.site-nav a.is-current {
  color: var(--accent);
  font-weight: 700;
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px 9px;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

.quick-bar {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.quick-bar ul {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 10px var(--gap);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-bar a {
  display: inline-block;
  padding: 4px 14px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.quick-bar a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.site-main {
  display: block;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--stone);
}

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

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

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

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

.page-header {
  padding: 18px 0 26px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 36px;
  line-height: 1.3;
  color: var(--ink);
}

.site-footer {
  background: var(--ink);
  color: #CFC8BE;
  padding: 48px 0 0;
  margin-top: 0;
}

.footer-top {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gap) 28px;
  border-bottom: 1px solid #3A372F;
}

.footer-brand {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--white);
  margin: 0 0 6px;
}

.footer-slogan {
  font-size: 14px;
  color: #A39B90;
  margin: 0;
}

.footer-cols {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 30px var(--gap);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.footer-col h3 {
  font-size: 14px;
  font-family: var(--sans);
  letter-spacing: 0.08em;
  color: var(--white);
  margin: 0 0 14px;
}

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

.footer-col a {
  font-size: 14px;
  color: #B4ACA1;
}

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

.footer-bottom {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 20px var(--gap) 32px;
  border-top: 1px solid #3A372F;
}

.footer-bottom p {
  font-size: 13px;
  color: #8E867B;
  margin: 0 0 6px;
}

/* --------------------------------------------------------------------------
   components · 通用元件
   -------------------------------------------------------------------------- */

.section-head {
  margin-bottom: 30px;
}

.section-no,
.item-no,
.eyebrow,
.page-kicker,
.curation-num {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}

.section-head h2 {
  font-size: 26px;
  margin-bottom: 12px;
}

.section-desc,
.section-lead,
.section-note,
.page-lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 68ch;
}

.section-title {
  font-size: 24px;
  margin-bottom: 18px;
}

.page-meta {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
  margin: 12px 0 0;
}

.link-more {
  display: inline-block;
  font-size: 14px;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.link-more:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  font-size: 15px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--ink);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

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

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

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

figcaption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  margin-top: 10px;
}

/* 关联阅读 */
.related-links {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 28px var(--gap);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.related-links-label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.related-links-item {
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

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

.related-reading,
.related-read,
.related-section {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.related-list li a {
  display: block;
  font-family: var(--serif);
  font-size: 17px;
  margin-bottom: 6px;
}

.related-list li span,
.related-list li p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  margin: 0;
}

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

.home-main {
  display: block;
}

/* 首屏 */
.hero {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gap);
}

.hero-media {
  position: relative;
  height: 420px;
  overflow: hidden;
  background: var(--ink);
}

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

.hero-body {
  position: relative;
  margin-top: -160px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
}

.hero-lead {
  background: var(--paper);
  padding: 34px 36px 36px;
  border: 1px solid var(--line);
  border-right: 0;
}

.hero-kicker {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

.hero-lead h1 {
  font-size: 46px;
  line-height: 1.28;
  margin-bottom: 16px;
}

.hero-intro {
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 34em;
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-info {
  background: var(--ink);
  color: #CFC8BE;
  padding: 30px 28px;
  border: 1px solid var(--ink);
}

.hero-info dl {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.info-row {
  padding: 12px 0;
  border-bottom: 1px solid #3A372F;
}

.info-row:first-child {
  padding-top: 0;
}

.info-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.info-row dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #8E867B;
  margin-bottom: 4px;
}

.info-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
}

/* 策展立场 */
.stance {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 0;
}

.stance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.stance-item {
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}

.stance-item h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.stance-item p:last-child {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* 主题策展画廊 */
.gallery {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 0;
}

.gallery-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  margin-bottom: 32px;
  background: var(--white);
}

.gallery-item-reverse .gallery-media {
  order: 2;
}

.gallery-item-reverse .gallery-text {
  order: 1;
}

.gallery-media {
  min-height: 320px;
  overflow: hidden;
  background: var(--line);
}

.gallery-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover .gallery-media img {
  transform: scale(1.03);
}

.gallery-text {
  padding: 34px 34px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.gallery-text h3 {
  font-size: 24px;
  margin-bottom: 14px;
}

.gallery-text p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin-bottom: 12px;
}

.gallery-hint {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 18px;
}

.gallery-text .link-more {
  align-self: flex-start;
}

/* 题材索引双栏 */
.index-two-col {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 0;
}

.index-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.index-nav {
  padding: 30px 28px;
  border-right: 1px solid var(--line);
}

.index-nav h3 {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.index-nav ol {
  display: flex;
  flex-direction: column;
}

.index-nav li {
  border-bottom: 1px dotted var(--line);
}

.index-nav li:last-child {
  border-bottom: 0;
}

.index-nav a {
  display: block;
  padding: 10px 0;
  font-size: 15px;
  color: var(--ink);
  transition: color 0.15s ease, padding-left 0.15s ease;
}

.index-nav a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.index-desc {
  padding: 30px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.index-desc h3 {
  font-size: 21px;
  margin-bottom: 14px;
}

.index-desc p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin-bottom: 12px;
}

.index-desc .link-more {
  align-self: flex-start;
  margin-top: 6px;
}

/* 观看问答 */
.faq {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 0;
}

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

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 20px 44px 20px 0;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--accent);
  line-height: 1;
}

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

.faq-list summary:hover {
  color: var(--accent);
}

.faq-list details p {
  padding: 0 44px 22px 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin: 0;
}

/* 观看四步 */
.steps {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 0;
}

.step-list {
  position: relative;
  border-left: 2px solid var(--line);
  padding-left: 0;
  margin-bottom: 24px;
}

.step-item {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 20px;
  padding: 0 0 30px 24px;
}

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

.step-no {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin: 0;
}

.step-body h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.step-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

/* 内容日志摘要 */
.log-summary {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 0;
}

.log-list {
  border-top: 1px solid var(--line);
  margin-bottom: 22px;
}

.log-row {
  display: grid;
  grid-template-columns: 100px 140px minmax(0, 1fr);
  gap: 20px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.log-round {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.log-type {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 2px 8px;
  justify-self: start;
}

.log-impact {
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

/* 反馈说明 */
.feedback-note {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 64px var(--gap) 80px;
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-bottom: 22px;
}

.feedback-item {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 26px 28px;
}

.feedback-item h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.feedback-item p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.feedback-hint {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  border-left: 3px solid var(--accent);
  padding-left: 16px;
}

.feedback-hint a {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

/* --------------------------------------------------------------------------
   pages · 内页通用
   -------------------------------------------------------------------------- */

.page-intro {
  padding: 26px 0 34px;
}

.page-intro .page-lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
}

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

.page-title-block .lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
  margin: 0 0 16px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.meta-row li {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
  border-left: 2px solid var(--line);
  padding-left: 10px;
}

.page-head {
  padding: 26px 0 34px;
}

.page-head .page-lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
  margin-bottom: 14px;
}

/* 双栏布局：默认主内容在前，aside 在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 48px;
  align-items: start;
  padding-top: 36px;
}

.page-layout.sidebar-left,
.subjects-layout {
  grid-template-columns: 280px minmax(0, 1fr);
}

.sidebar-left .subjects-sidebar {
  order: 1;
}

.sidebar-left .subjects-main {
  order: 2;
}

/* --------------------------------------------------------------------------
   pages · 题材目录
   -------------------------------------------------------------------------- */

.subjects-sidebar {
  position: sticky;
  top: 24px;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 24px 22px;
}

.sidebar-title {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.subject-index ol {
  display: flex;
  flex-direction: column;
}

.subject-index li {
  border-bottom: 1px dotted var(--line);
}

.subject-index li:last-child {
  border-bottom: 0;
}

.subject-index a {
  display: block;
  padding: 9px 0;
  font-size: 14px;
  color: var(--ink);
  transition: color 0.15s ease, padding-left 0.15s ease;
}

.subject-index a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.sidebar-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.subjects-main .section-title {
  font-size: 24px;
  margin-bottom: 20px;
}

.subject-figure {
  margin-bottom: 34px;
  overflow: hidden;
  background: var(--line);
}

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

.subject-entry {
  padding: 26px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.subject-name {
  font-size: 21px;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.subject-num {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.subject-scope {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin-bottom: 14px;
}

.subject-forms {
  margin: 0 0 14px;
  padding-left: 0;
}

.subject-forms li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  margin-bottom: 6px;
}

.subject-forms li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.subject-exclude {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  border-left: 2px solid var(--line);
  padding-left: 12px;
  margin-bottom: 14px;
}

.subject-link {
  display: inline-block;
  font-size: 14px;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.subject-link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.cross-reading {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.cross-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.cross-links li a {
  display: block;
  font-family: var(--serif);
  font-size: 17px;
  margin-bottom: 6px;
}

.cross-links li span {
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

/* --------------------------------------------------------------------------
   pages · 主题策展
   -------------------------------------------------------------------------- */

.page-curation .page-title {
  margin-bottom: 0;
}

.curation-intro {
  padding: 36px 0 0;
}

.curation-intro h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.intro-body p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--stone);
  max-width: 68ch;
  margin-bottom: 14px;
}

.intro-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.intro-facts .fact {
  padding: 18px 22px;
  border-right: 1px solid var(--line);
}

.intro-facts .fact:last-child {
  border-right: 0;
}

.intro-facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
  margin-bottom: 6px;
}

.intro-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.curation-playlist {
  padding: 56px 0 0;
}

.curation-playlist h2 {
  font-size: 26px;
  margin-bottom: 28px;
}

.feature-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  background: var(--white);
  margin-bottom: 32px;
}

.feature-row--media-left .feature-media {
  order: 1;
}

.feature-row--media-left .feature-text {
  order: 2;
}

.feature-row--media-right .feature-media {
  order: 2;
}

.feature-row--media-right .feature-text {
  order: 1;
}

.feature-media {
  min-height: 340px;
  overflow: hidden;
  background: var(--line);
  display: flex;
  flex-direction: column;
}

.feature-media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.feature-row:hover .feature-media img {
  transform: scale(1.03);
}

.feature-media figcaption {
  padding: 10px 16px;
  margin-top: 0;
  background: var(--white);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.feature-text {
  padding: 32px 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-text h3 {
  font-size: 23px;
  margin-bottom: 14px;
}

.feature-text > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin-bottom: 12px;
}

.watch-order {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: 10px;
  margin-bottom: 16px;
}

.feature-link {
  margin: 0;
}

.feature-link a {
  display: inline-block;
  font-size: 14px;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.feature-link a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.order-note {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 24px 28px;
}

.order-note h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.order-note p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

.curation-excluded {
  padding: 56px 0 0;
}

.curation-excluded h2 {
  font-size: 26px;
  margin-bottom: 14px;
}

.curation-excluded > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
  margin-bottom: 24px;
}

.excluded-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.excluded-list li {
  border-top: 2px solid var(--line);
  padding-top: 16px;
}

.excluded-list h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.excluded-list p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

/* --------------------------------------------------------------------------
   pages · 观看须知
   -------------------------------------------------------------------------- */

.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 48px;
  align-items: start;
  padding-top: 36px;
}

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

.steps-section,
.checklist-section,
.diagnose-section {
  margin-bottom: 48px;
}

.steps-section h2,
.checklist-section h2,
.diagnose-section h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.media-figure {
  margin: 20px 0 28px;
  overflow: hidden;
  background: var(--line);
}

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

.step-line {
  position: relative;
  border-left: 2px solid var(--line);
}

.step-line .step-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  padding: 0 0 28px 22px;
}

.step-line .step-item:last-child {
  padding-bottom: 0;
}

.step-line .step-num {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.step-line .step-body h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.step-line .step-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0 0 6px;
}

.step-line .step-note {
  font-size: 13px;
  color: var(--accent);
  margin: 0;
}

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

.check-row {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 20px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.check-name {
  font-size: 15px;
  color: var(--ink);
  font-weight: 600;
}

.check-criteria,
.check-expect {
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

.diagnose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.diagnose-card {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 24px 22px;
}

.diagnose-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.diagnose-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin-bottom: 10px;
}

.diagnose-tag {
  font-size: 13px;
  color: var(--accent);
  margin: 0;
}

.page-aside {
  position: sticky;
  top: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.aside-block {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 22px 22px;
}

.aside-block h2 {
  font-size: 16px;
  font-family: var(--sans);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.aside-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  margin-bottom: 8px;
}

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

.aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   pages · 内容准则
   -------------------------------------------------------------------------- */

.standards-block {
  padding: 40px 0 0;
}

.block-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.block-num {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.block-head h2 {
  font-size: 24px;
}

.block-intro {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
  margin-bottom: 22px;
}

.criteria-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.criteria-item {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}

.criteria-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.criteria-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

.standards-figure {
  margin: 0 0 26px;
  overflow: hidden;
  background: var(--line);
}

.standards-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.verify-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  counter-reset: verify;
}

.verify-step {
  border-left: 2px solid var(--accent);
  padding-left: 16px;
}

.verify-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.verify-step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.boundary-col {
  padding: 24px 26px;
}

.boundary-yes {
  border-right: 1px solid var(--line);
}

.boundary-col h3 {
  font-size: 17px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.boundary-yes h3 {
  color: var(--ink);
}

.boundary-no h3 {
  color: var(--stone);
}

.boundary-col li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin-bottom: 8px;
}

.boundary-col li:last-child {
  margin-bottom: 0;
}

.boundary-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 8px;
  height: 1px;
}

.boundary-yes li::before {
  background: var(--accent);
}

.boundary-no li::before {
  background: var(--line);
}

.correction-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  margin-bottom: 20px;
}

.correction-step {
  border-top: 2px solid var(--line);
  padding-top: 14px;
}

.correction-step h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.correction-step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

.correction-tail {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

.correction-tail a {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

/* --------------------------------------------------------------------------
   pages · 内容日志
   -------------------------------------------------------------------------- */

.log-intro {
  padding: 36px 0 0;
}

.log-intro h2 {
  font-size: 24px;
  margin-bottom: 14px;
}

.log-intro p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
  margin-bottom: 12px;
}

.log-legend {
  padding: 36px 0 0;
}

.log-legend h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.legend-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px 28px;
}

.legend-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dotted var(--line);
}

.legend-tag {
  flex: none;
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 2px;
  padding: 1px 8px;
  white-space: nowrap;
}

.legend-def {
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.log-figure {
  margin: 36px 0 0;
  overflow: hidden;
  background: var(--line);
}

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

.log-records {
  padding: 40px 0 0;
}

.log-records h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.section-note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin-bottom: 24px;
}

.log-record {
  border-top: 1px solid var(--line);
  padding: 22px 0;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.record-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.record-round {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.record-body p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin-bottom: 10px;
}

.record-impact {
  font-size: 14px;
  color: var(--accent);
  margin: 0;
}

.log-impact {
  padding: 40px 0 0;
}

.log-impact h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.log-impact > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 68ch;
  margin-bottom: 18px;
}

.impact-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin-bottom: 10px;
}

.impact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

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

/* --------------------------------------------------------------------------
   pages · 意见反馈
   -------------------------------------------------------------------------- */

.page-feedback .page-title-block,
.page-feedback .page-head {
  padding-bottom: 28px;
}

.page-figure {
  margin: 32px 0 0;
  overflow: hidden;
  background: var(--line);
}

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

.feedback-types,
.self-check,
.process,
.not-accepted {
  padding: 40px 0 0;
}

.feedback-types h2,
.self-check h2,
.process h2,
.not-accepted h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.type-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
  margin-top: 20px;
}

.type-item {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 24px 22px;
}

.type-index {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 8px;
}

.type-item h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.type-item > p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  margin-bottom: 12px;
}

.type-item > p a {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

.type-needs {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.type-needs li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  margin-bottom: 6px;
}

.type-needs li:last-child {
  margin-bottom: 0;
}

.type-needs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background: var(--accent);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  margin-top: 20px;
}

.process-step {
  border-top: 2px solid var(--line);
  padding-top: 16px;
}

.step-index {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 6px;
}

.process-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

.not-list {
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.not-list li {
  position: relative;
  padding: 12px 0 12px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  border-bottom: 1px solid var(--line);
}

.not-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 10px;
  height: 1px;
  background: var(--line);
}

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

.error-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gap);
}

.error-block {
  padding: 80px 0 96px;
  max-width: 640px;
}

.error-code {
  font-family: var(--serif);
  font-size: 64px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin: 0 0 18px;
}

.error-block h1 {
  font-size: 36px;
  margin-bottom: 14px;
}

.error-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
  margin-bottom: 24px;
}

.error-tips {
  border-top: 1px solid var(--line);
  margin-bottom: 28px;
}

.error-tips li {
  border-bottom: 1px solid var(--line);
}

.error-tips a {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  color: var(--ink);
  transition: color 0.15s ease, padding-left 0.15s ease;
}

.error-tips a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.error-home {
  display: inline-block;
  padding: 12px 26px;
  font-size: 15px;
  color: var(--white);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
}

.error-home:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

/* --------------------------------------------------------------------------
   responsive · 960px
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  :root {
    --gap: 28px;
  }

  .header-inner {
    min-height: 64px;
  }

  .site-nav ul {
    gap: 18px;
  }

  .site-nav a {
    font-size: 14px;
  }

  .hero-media {
    height: 320px;
  }

  .hero-body {
    grid-template-columns: minmax(0, 1fr);
    margin-top: -80px;
  }

  .hero-lead {
    border-right: 1px solid var(--line);
    border-bottom: 0;
    padding: 28px 28px 30px;
  }

  .hero-lead h1 {
    font-size: 36px;
  }

  .hero-info {
    padding: 24px 26px;
  }

  .stance-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

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

  .gallery-item-reverse .gallery-media,
  .gallery-item-reverse .gallery-text {
    order: initial;
  }

  .gallery-media {
    min-height: 260px;
  }

  .gallery-text {
    padding: 26px 26px 24px;
  }

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

  .index-nav {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .log-row {
    grid-template-columns: 90px 120px minmax(0, 1fr);
    gap: 14px;
  }

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

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

  .subjects-sidebar,
  .page-aside {
    position: static;
  }

  .sidebar-left .subjects-sidebar {
    order: 1;
  }

  .sidebar-left .subjects-main {
    order: 2;
  }

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

  .intro-facts .fact {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .intro-facts .fact:last-child {
    border-bottom: 0;
  }

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

  .feature-row--media-left .feature-media,
  .feature-row--media-right .feature-media {
    order: 1;
  }

  .feature-row--media-left .feature-text,
  .feature-row--media-right .feature-text {
    order: 2;
  }

  .feature-media {
    min-height: 260px;
  }

  .feature-text {
    padding: 26px 26px 24px;
  }

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

  .boundary-yes {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .log-record {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .check-row {
    grid-template-columns: 160px minmax(0, 1fr);
  }
}

/* --------------------------------------------------------------------------
   responsive · 640px
   -------------------------------------------------------------------------- */

@media (max-width: 640px) {
  :root {
    --gap: 20px;
  }

  body {
    font-size: 16px;
  }

  .header-inner {
    min-height: 60px;
    flex-wrap: wrap;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .brand {
    font-size: 19px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex-basis: 100%;
    order: 3;
  }

  .site-nav ul {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-top: 8px;
    border-top: 1px solid var(--line);
  }

  .site-nav ul.is-open {
    display: flex;
  }

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

  .site-nav li:last-child {
    border-bottom: 0;
  }

  .site-nav a {
    display: block;
    min-height: 44px;
    padding: 12px 2px;
    font-size: 15px;
    border-bottom: 0;
  }

  .site-nav a.is-current {
    border-bottom: 0;
  }

  .quick-bar ul {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .quick-bar a {
    white-space: nowrap;
    min-height: 32px;
  }

  .inner-main {
    padding-bottom: 52px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 12px;
  }

  .page-header {
    padding: 14px 0 20px;
  }

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

  .hero-media {
    height: 220px;
  }

  .hero-body {
    margin-top: 0;
  }

  .hero-lead {
    padding: 22px 20px 24px;
  }

  .hero-lead h1 {
    font-size: 30px;
    line-height: 1.32;
  }

  .hero-intro {
    font-size: 15px;
    margin-bottom: 20px;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn {
    padding: 11px 20px;
    font-size: 14px;
  }

  .hero-info {
    padding: 20px;
  }

  .stance,
  .gallery,
  .index-two-col,
  .faq,
  .steps,
  .log-summary,
  .feedback-note {
    padding-top: 44px;
  }

  .feedback-note {
    padding-bottom: 56px;
  }

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

  .section-head h2 {
    font-size: 21px;
  }

  .stance-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

  .gallery-media {
    min-height: 200px;
  }

  .gallery-text {
    padding: 20px 20px 22px;
  }

  .gallery-text h3 {
    font-size: 20px;
  }

  .index-nav,
  .index-desc {
    padding: 20px;
  }

  .index-desc h3 {
    font-size: 19px;
  }

  .faq-list summary {
    padding: 16px 36px 16px 0;
    font-size: 16px;
  }

  .faq-list details p {
    padding: 0 0 18px;
    font-size: 14px;
  }

  .step-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
    padding-left: 16px;
  }

  .step-no {
    font-size: 20px;
  }

  .log-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 0;
  }

  .log-type {
    justify-self: start;
  }

  .feedback-item {
    padding: 20px;
  }

  .page-intro,
  .page-title-block,
  .page-head {
    padding: 20px 0 24px;
  }

  .page-intro .page-lead,
  .page-title-block .lead,
  .page-head .page-lead {
    font-size: 15px;
  }

  .meta-row {
    gap: 8px 16px;
  }

  .page-layout,
  .layout-shell {
    padding-top: 26px;
    gap: 30px;
  }

  .subjects-sidebar {
    padding: 18px;
  }

  .subject-index ol {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0 12px;
  }

  .subject-index li {
    border-bottom: 0;
  }

  .subject-index a {
    padding: 8px 0;
    font-size: 13px;
  }

  .subject-figure img {
    height: 200px;
  }

  .subject-entry {
    padding: 22px 0;
  }

  .subject-name {
    font-size: 19px;
  }

  .cross-reading,
  .related-reading,
  .related-read,
  .related-section {
    margin-top: 40px;
    padding-top: 24px;
  }

  .cross-links,
  .related-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .curation-intro {
    padding-top: 26px;
  }

  .curation-intro h2,
  .curation-playlist h2,
  .curation-excluded h2 {
    font-size: 21px;
  }

  .curation-playlist,
  .curation-excluded {
    padding-top: 40px;
  }

  .feature-media {
    min-height: 200px;
  }

  .feature-media img {
    min-height: 200px;
  }

  .feature-text {
    padding: 20px 20px 22px;
  }

  .feature-text h3 {
    font-size: 20px;
  }

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

  .order-note {
    padding: 20px;
  }

  .steps-section h2,
  .checklist-section h2,
  .diagnose-section h2,
  .feedback-types h2,
  .self-check h2,
  .process h2,
  .not-accepted h2,
  .log-records h2,
  .log-impact h2 {
    font-size: 21px;
  }

  .media-figure img,
  .standards-figure img,
  .log-figure img,
  .page-figure img {
    height: 200px;
  }

  .step-line .step-item {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
    padding-left: 16px;
  }

  .step-line .step-num {
    font-size: 19px;
  }

  .check-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 12px 0;
  }

  .diagnose-grid,
  .criteria-list,
  .verify-steps,
  .correction-steps,
  .type-list,
  .process-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .aside-block {
    padding: 18px;
  }

  .standards-block,
  .feedback-types,
  .self-check,
  .process,
  .not-accepted,
  .log-records,
  .log-impact {
    padding-top: 32px;
  }

  .block-head h2 {
    font-size: 21px;
  }

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

  .log-intro,
  .log-legend {
    padding-top: 26px;
  }

  .log-intro h2,
  .log-legend h2 {
    font-size: 20px;
  }

  .log-record {
    padding: 18px 0;
  }

  .boundary-col {
    padding: 20px;
  }

  .type-item {
    padding: 20px;
  }

  .error-block {
    padding: 52px 0 60px;
  }

  .error-code {
    font-size: 48px;
  }

  .error-block h1 {
    font-size: 26px;
  }

  .related-links {
    padding: 22px var(--gap);
    gap: 12px;
  }

  .footer-cols {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-top: 26px;
    padding-bottom: 26px;
  }

  .footer-top {
    padding-bottom: 22px;
  }

  .footer-brand {
    font-size: 19px;
  }

  .footer-bottom {
    padding-bottom: 26px;
  }
}

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

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