/* ==========================================================================
   九一传媒制片厂 · 站点样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

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

:root {
  --ink: #10201D;
  --paper: #F6F3EA;
  --green: #00A884;
  --orange: #FF5A36;
  --mist: #DDE8E2;
  --gray: #65736F;
  --line: #C9D6CF;
  --white: #FFFFFF;
  --radius: 6px;
  --radius-sm: 4px;
  --shell: 1120px;
  --read: 760px;
  --gap: 28px;
}

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

p {
  margin: 0;
}

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

a {
  color: var(--green);
  text-decoration: none;
  transition: color 0.18s ease;
}

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

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

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

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

strong {
  font-weight: 700;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 60;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius-sm);
  transition: top 0.18s ease;
}

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

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

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

.site-header {
  position: relative;
  z-index: 30;
  background-color: var(--paper);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--ink);
  flex-shrink: 0;
}

.brand:hover,
.brand:focus-visible {
  color: var(--ink);
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.brand-slogan {
  font-size: 12px;
  line-height: 1.5;
  color: var(--gray);
}

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

.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-sm);
  background-color: var(--white);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--ink);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) 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(-7px) rotate(-45deg);
}

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

.nav-list li {
  display: flex;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--ink);
  border-radius: var(--radius-sm);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--green);
  background-color: var(--mist);
}

.nav-list a.is-current {
  color: var(--white);
  background-color: var(--green);
}

.nav-list a.is-current:hover,
.nav-list a.is-current:focus-visible {
  color: var(--white);
  background-color: var(--green);
}

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

.home-main {
  display: block;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray);
}

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

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

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

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

.page-header {
  padding: 18px 0 0;
}

.page-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.28;
  color: var(--ink);
  max-width: 860px;
}

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

.section {
  padding: 56px 0 0;
}

.section-head {
  max-width: var(--read);
  margin-bottom: 26px;
}

.section-head h2 {
  font-size: 28px;
  line-height: 1.35;
}

.section-desc {
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}

.section-body {
  max-width: var(--read);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.section-more {
  margin-top: 22px;
  font-size: 15px;
}

.section-more a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--green);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.section-more a::after {
  content: "→";
  font-weight: 400;
}

.section-more a:hover,
.section-more a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  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-color: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #008a6c;
  border-color: #008a6c;
  color: var(--white);
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  font-size: 13px;
  line-height: 1.7;
  font-weight: 700;
  color: var(--green);
  background-color: var(--mist);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.tag-accent {
  color: var(--white);
  background-color: var(--orange);
}

.tag-narrative {
  color: var(--white);
  background-color: var(--green);
}

.tag-product {
  color: var(--white);
  background-color: var(--orange);
}

.tag-people {
  color: var(--ink);
  background-color: var(--mist);
}

.tag-event {
  color: var(--ink);
  background-color: #F0D9A8;
}

.tag-row,
.tag-list,
.hero-tags,
.hero-tag-list,
.intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.8;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  background-color: var(--green);
  border-radius: 1px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.related-links-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray);
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

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

/* FAQ 折叠组件 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--read);
}

.faq-item {
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-question,
.faq-item summary {
  position: relative;
  display: block;
  padding: 16px 48px 16px 18px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after,
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  color: var(--green);
}

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

.faq-item[open] .faq-question,
.faq-item[open] summary {
  color: var(--green);
}

.faq-answer {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--mist);
}

.faq-answer p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

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

.faq-answer a {
  display: inline-block;
  margin-top: 12px;
  font-size: 15px;
  font-weight: 700;
}

.faq-answer a::after {
  content: " →";
  font-weight: 400;
}

/* 表格 */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--white);
}

.spec-table,
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.7;
}

.spec-table th,
.spec-table td,
.info-table th,
.info-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--mist);
}

.spec-table thead th,
.info-table thead th {
  background-color: var(--mist);
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td,
.info-table tbody tr:last-child th,
.info-table tbody tr:last-child td {
  border-bottom: 0;
}

.info-table tbody th {
  width: 150px;
  font-weight: 700;
  background-color: #F1F5F1;
  color: var(--ink);
}

.table-caption {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--gray);
  text-align: left;
  caption-side: top;
}

/* figure / 图片容器 */
.media-figure,
.hero-media,
.works-feature-media,
.aside-figure,
.content-figure,
.workstyle-figure,
.faq-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background-color: var(--mist);
}

.media-figure img,
.hero-media img,
.works-feature-media img,
.aside-figure img,
.content-figure img,
.workstyle-figure img,
.faq-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-figure figcaption,
.hero-media figcaption,
.works-feature-media figcaption,
.aside-figure figcaption,
.content-figure figcaption,
.workstyle-figure figcaption,
.faq-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
  background-color: var(--white);
  border-top: 1px solid var(--mist);
}

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

.site-footer {
  margin-top: 72px;
  background-color: var(--ink);
  color: #C9D6CF;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 48px 24px 32px;
}

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

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
}

.footer-slogan {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--green);
}

.footer-desc {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.85;
  color: #A9B8B2;
}

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

.footer-nav-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

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

.footer-nav-group a {
  display: inline-block;
  padding: 2px 0;
  font-size: 14px;
  line-height: 1.6;
  color: #C9D6CF;
}

.footer-nav-group a:hover,
.footer-nav-group a:focus-visible {
  color: var(--green);
}

.footer-col-boundary p:not(.footer-nav-title) {
  font-size: 13px;
  line-height: 1.85;
  color: #A9B8B2;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px 28px;
  border-top: 1px solid #2A3A36;
}

.back-top {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
  color: var(--white);
  border: 1px solid #3C4C48;
  border-radius: var(--radius-sm);
}

.back-top:hover,
.back-top:focus-visible {
  color: var(--ink);
  background-color: var(--green);
  border-color: var(--green);
}

.footer-note {
  font-size: 13px;
  line-height: 1.7;
  color: #8C9C96;
}

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

.hero {
  padding: 48px 0 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  grid-template-areas:
    "text media"
    "tags tags"
    "index index";
  gap: 32px 40px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-text {
  grid-area: text;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  min-width: 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  background-color: #FBE4DC;
  border-radius: var(--radius-sm);
}

.hero-text h1 {
  font-size: 46px;
  line-height: 1.24;
}

.hero-summary {
  max-width: 560px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--gray);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.hero-media {
  grid-area: media;
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
}

.hero-media img {
  flex: 1 1 auto;
  min-height: 0;
}

.hero-tags {
  grid-area: tags;
}

.content-index {
  grid-area: index;
  width: 100%;
  padding-top: 8px;
}

.content-index-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.content-index-item {
  min-width: 0;
  background-color: var(--white);
}

.content-index-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 14px 18px;
  color: var(--ink);
}

.content-index-item a:hover,
.content-index-item a:focus-visible {
  background-color: var(--mist);
  color: var(--green);
}

.index-num {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.index-name {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.service-index {
  padding: 0 24px;
  max-width: var(--shell);
  margin: 0 auto;
}

.service-rows {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.service-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.row-num {
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

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

.row-title {
  font-size: 20px;
  line-height: 1.4;
}

.row-desc {
  margin-top: 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

.row-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.row-link::after {
  content: "→";
  margin-left: 6px;
  font-weight: 400;
}

.row-link:hover,
.row-link:focus-visible {
  color: var(--white);
  background-color: var(--green);
  border-color: var(--green);
}

.works-feature .section-head,
.process-preview .section-head,
.standards-summary .section-head,
.collab-summary .section-head,
.faq-preview .section-head,
.works-feature-layout,
.process-track,
.duty-columns,
.condition-columns,
.faq-preview .faq-list,
.works-feature .section-more,
.process-preview .section-more,
.standards-summary .section-more,
.collab-summary .section-more,
.faq-preview .section-more {
  max-width: var(--shell);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.works-feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.works-feature-media {
  display: flex;
  flex-direction: column;
  aspect-ratio: 16 / 10;
}

.works-feature-media img {
  flex: 1 1 auto;
  min-height: 0;
}

.works-feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}

.works-feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.works-feature-item h3 {
  font-size: 18px;
  line-height: 1.4;
}

.works-feature-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

.works-feature-item a {
  font-size: 14px;
  font-weight: 700;
}

.works-feature-item a::after {
  content: " →";
  font-weight: 400;
}

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

.process-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
  min-width: 0;
}

.process-step .step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.process-step .step-name {
  font-size: 17px;
  line-height: 1.4;
}

.process-step .step-question {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.process-step .step-output {
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

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

.duty-col,
.condition-col {
  min-width: 0;
  padding: 22px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.duty-title,
.condition-title {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.duty-list,
.condition-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.duty-list li,
.condition-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.duty-list li::before,
.condition-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background-color: var(--green);
}

.condition-col-fit {
  border-top: 3px solid var(--green);
}

.condition-col-out {
  border-top: 3px solid var(--orange);
}

.condition-col-out .condition-list li::before {
  background-color: var(--orange);
}

/* --------------------------------------------------------------------------
   pages · 内页公共区
   -------------------------------------------------------------------------- */

.page-hero,
.page-intro {
  max-width: var(--read);
  padding: 20px 0 0;
}

.eyebrow,
.page-kicker,
.page-eyebrow {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  padding: 3px 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  background-color: #FBE4DC;
  border-radius: var(--radius-sm);
}

.page-lead {
  font-size: 18px;
  line-height: 1.85;
  color: var(--ink);
}

.page-hero .tag-row,
.page-hero .tag-list,
.page-hero .hero-tag-list,
.page-intro .intro-tags {
  margin-top: 16px;
}

.section-intro {
  max-width: var(--read);
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}

/* --------------------------------------------------------------------------
   pages · 服务类型
   -------------------------------------------------------------------------- */

.section-overview {
  padding-top: 48px;
}

.section-overview .service-index {
  padding: 0;
  max-width: none;
  margin: 0;
}

.service-index-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.service-index-row:first-child {
  border-top: 1px solid var(--line);
}

.service-index-body {
  min-width: 0;
}

.service-index-body h3 {
  font-size: 20px;
  line-height: 1.4;
}

.service-index-body p {
  margin-top: 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

.index-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.index-link::after {
  content: "→";
  margin-left: 6px;
  font-weight: 400;
}

.index-link:hover,
.index-link:focus-visible {
  color: var(--white);
  background-color: var(--green);
  border-color: var(--green);
}

.split-media {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 32px;
  align-items: start;
}

.split-media .media-figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: 4 / 3;
}

.split-media .media-figure img {
  flex: 1 1 auto;
  min-height: 0;
}

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

.split-body h3 {
  font-size: 19px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.split-body h3 + p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.split-body .check-list {
  margin-top: 14px;
}

.split-body h3 ~ h3 {
  margin-top: 24px;
}

.deliver-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.deliver-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.8;
}

.deliver-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  background-color: var(--orange);
  border-radius: 1px;
}

.deliver-name {
  font-weight: 700;
}

.deliver-list-wide {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.deliver-list-wide li {
  padding: 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.deliver-list-wide li::before {
  display: none;
}

.deliver-list-wide .deliver-name {
  display: block;
  font-size: 16px;
  margin-bottom: 6px;
}

.deliver-list-wide p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

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

.column-box {
  min-width: 0;
  padding: 22px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.column-box h3 {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.section-info .table-wrap {
  max-width: 100%;
}

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

.boundary-list li {
  min-width: 0;
  padding: 20px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
}

.boundary-list h3 {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.boundary-list p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* --------------------------------------------------------------------------
   pages · 作品方向
   -------------------------------------------------------------------------- */

.filter-bar {
  margin-top: 40px;
  padding: 16px 0;
  background-color: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.filter-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray);
  margin-bottom: 12px;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.filter-btn:hover,
.filter-btn:focus-visible {
  border-color: var(--green);
  color: var(--green);
}

.filter-btn.is-active {
  color: var(--white);
  background-color: var(--green);
  border-color: var(--green);
}

.direction-list {
  padding-top: 40px;
}

.direction-list h2,
.feature-frame h2,
.composition h2,
.works-bridge h2,
.related-list h2 {
  font-size: 26px;
  line-height: 1.35;
}

.direction-items {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.direction-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  grid-template-areas:
    "tag name link"
    "tag scene link"
    "tag point link";
  align-items: start;
  gap: 4px 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.direction-item .tag {
  grid-area: tag;
  justify-self: start;
  margin-top: 3px;
}

.direction-name {
  grid-area: name;
  font-size: 19px;
  line-height: 1.4;
}

.direction-scene {
  grid-area: scene;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.direction-point {
  grid-area: point;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.direction-link {
  grid-area: link;
  align-self: center;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.direction-link::after {
  content: " →";
  font-weight: 400;
}

.feature-frame {
  padding-top: 56px;
}

.feature-frame .media-figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: 21 / 9;
  margin-top: 18px;
}

.feature-frame .media-figure img {
  flex: 1 1 auto;
  min-height: 0;
}

.feature-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.feature-note {
  min-width: 0;
  padding: 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feature-note h3 {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.feature-note p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.composition {
  padding-top: 56px;
}

.composition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.composition-card {
  min-width: 0;
  padding: 20px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
}

.composition-card h3 {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.composition-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.works-bridge {
  margin-top: 56px;
  padding: 26px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.works-bridge p {
  margin: 10px 0 18px;
  max-width: var(--read);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.related-list li {
  min-width: 0;
}

.related-list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 44px;
  padding: 16px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
}

.related-list a:hover,
.related-list a:focus-visible {
  border-color: var(--green);
  color: var(--green);
}

.related-name {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.related-desc,
.related-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

.related-section {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.related-section h2 {
  font-size: 24px;
  line-height: 1.35;
}

.related-section .related-desc {
  margin-top: 8px;
  font-size: 15px;
}

/* --------------------------------------------------------------------------
   pages · 制作流程
   -------------------------------------------------------------------------- */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
  margin-top: 40px;
}

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

.layout-aside {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.stage-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

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

.stage-index {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stage-num {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.stage-name {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

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

.stage-body h3 {
  font-size: 19px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.stage-body > p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.stage-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.stage-facts dt {
  font-size: 13px;
  font-weight: 700;
  color: var(--gray);
  margin-bottom: 2px;
}

.stage-facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.stage-link {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

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

.link-list li {
  padding: 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.link-list h3 {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 6px;
}

.link-list p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

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

.aside-title {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.aside-intro {
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
  margin-bottom: 12px;
}

.aside-panel .check-list {
  gap: 12px;
}

.aside-panel .check-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 14px;
  line-height: 1.7;
}

.check-name {
  font-weight: 700;
  color: var(--ink);
}

.check-desc {
  font-size: 13px;
  color: var(--gray);
}

.aside-figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: 4 / 3;
}

.aside-figure img {
  flex: 1 1 auto;
  min-height: 0;
}

.aside-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.aside-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--paper);
  border-radius: var(--radius-sm);
}

.aside-nav a::after {
  content: "→";
  margin-left: auto;
  font-weight: 400;
  color: var(--green);
}

.aside-nav a:hover,
.aside-nav a:focus-visible {
  color: var(--green);
  background-color: var(--mist);
}

/* --------------------------------------------------------------------------
   pages · 素材与规范
   -------------------------------------------------------------------------- */

.page-anchor-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 32px;
  padding: 14px 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.anchor-nav-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--gray);
}

.anchor-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.anchor-nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--paper);
  border-radius: var(--radius-sm);
}

.anchor-nav-list a:hover,
.anchor-nav-list a:focus-visible {
  color: var(--white);
  background-color: var(--green);
}

.content-section {
  padding-top: 52px;
}

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

.section-index {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.content-figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: 21 / 9;
  margin-top: 36px;
}

.content-figure img {
  flex: 1 1 auto;
  min-height: 0;
}

.check-item {
  position: relative;
  padding: 16px 18px 16px 40px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.check-item::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 9px;
  height: 9px;
  background-color: var(--green);
  border-radius: 1px;
}

.check-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.check-item .check-desc {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.rule-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: rule;
}

.rule-item {
  counter-increment: rule;
  position: relative;
  padding: 16px 18px 16px 56px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.rule-item::before {
  content: counter(rule, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.rule-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.rule-desc {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.boundary-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
}

.boundary-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.boundary-desc {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* --------------------------------------------------------------------------
   pages · 合作规则
   -------------------------------------------------------------------------- */

.duty-section {
  padding-top: 48px;
}

.duty-col-client {
  border-top: 3px solid var(--green);
}

.duty-col-maker {
  border-top: 3px solid var(--orange);
}

.duty-col-maker .duty-list li::before {
  background-color: var(--orange);
}

.duty-list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  color: var(--ink);
}

.report-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.report-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.report-index {
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

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

.report-body h3 {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: 4px;
}

.report-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

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

.change-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.change-index {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.change-body h3 {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 6px;
}

.change-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

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

.exclude-item {
  min-width: 0;
  padding: 20px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
}

.exclude-item h3 {
  font-size: 16px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.exclude-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

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

.step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
  min-width: 0;
}

.step-item .step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.step-item h3 {
  font-size: 17px;
  line-height: 1.4;
}

.step-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.step-item .step-result {
  margin-top: auto;
  padding-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
  border-top: 1px dashed var(--line);
}

.workstyle-figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: 21 / 9;
}

.workstyle-figure img {
  flex: 1 1 auto;
  min-height: 0;
}

.workstyle-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.workstyle-note {
  min-width: 0;
  padding: 20px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.workstyle-note h3 {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.workstyle-note p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

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

.page-container {
  max-width: var(--read);
}

.page-container .page-hero {
  padding-top: 20px;
}

.faq-topics {
  padding-top: 44px;
}

.faq-topics h2,
.faq-group h2,
.faq-related h2 {
  font-size: 26px;
  line-height: 1.35;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.topic-item {
  min-width: 0;
}

.topic-item a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 12px 16px;
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
}

.topic-item a:hover,
.topic-item a:focus-visible {
  border-color: var(--green);
  color: var(--green);
}

.topic-num {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.topic-name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.topic-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--gray);
  white-space: nowrap;
}

.faq-figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: 21 / 9;
  margin-top: 32px;
}

.faq-figure img {
  flex: 1 1 auto;
  min-height: 0;
}

.faq-group {
  padding-top: 44px;
}

.faq-group .section-intro {
  margin-bottom: 18px;
}

.faq-related {
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

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

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

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

.error-inner {
  width: 100%;
  max-width: 640px;
  text-align: left;
}

.error-code {
  font-size: 14px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.error-inner h1 {
  margin-top: 10px;
  font-size: 38px;
  line-height: 1.3;
}

.error-desc {
  margin-top: 12px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--gray);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.error-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.error-links-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--gray);
  margin-bottom: 12px;
}

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

.error-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.error-links a:hover,
.error-links a:focus-visible {
  color: var(--green);
  border-color: var(--green);
}

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

@media (max-width: 1024px) {
  .header-inner {
    padding: 14px 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    background-color: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(16, 32, 29, 0.08);
  }

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

  .nav-list li {
    display: block;
  }

  .nav-list a {
    display: flex;
    min-height: 46px;
    padding: 0 14px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  .hero-text h1 {
    font-size: 38px;
  }

  .page-title {
    font-size: 38px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px 32px;
  }

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

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

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 32px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

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

@media (max-width: 760px) {
  body {
    font-size: 16px;
  }

  .header-inner {
    padding: 12px 16px;
    gap: 12px;
  }

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

  .brand-slogan {
    font-size: 11px;
  }

  .inner-main {
    padding: 0 16px 56px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 13px;
  }

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

  .page-title {
    font-size: 30px;
    line-height: 1.3;
  }

  .hero {
    padding-top: 28px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "text"
      "media"
      "tags"
      "index";
    gap: 20px;
    padding: 0 16px;
  }

  .hero-text h1 {
    font-size: 30px;
    line-height: 1.3;
  }

  .hero-summary {
    font-size: 16px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

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

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

  .service-index {
    padding: 0 16px;
  }

  .service-row,
  .service-index-row {
    grid-template-columns: 40px minmax(0, 1fr);
    grid-template-areas:
      "num body"
      "num link";
    gap: 8px 14px;
    align-items: start;
    padding: 18px 0;
  }

  .service-row .row-num,
  .service-index-row .index-num {
    grid-area: num;
    padding-top: 2px;
  }

  .service-row .row-body,
  .service-index-row .service-index-body {
    grid-area: body;
  }

  .service-row .row-link,
  .service-index-row .index-link {
    grid-area: link;
    justify-self: start;
    margin-top: 6px;
  }

  .works-feature .section-head,
  .process-preview .section-head,
  .standards-summary .section-head,
  .collab-summary .section-head,
  .faq-preview .section-head,
  .works-feature-layout,
  .process-track,
  .duty-columns,
  .condition-columns,
  .faq-preview .faq-list,
  .works-feature .section-more,
  .process-preview .section-more,
  .standards-summary .section-more,
  .collab-summary .section-more,
  .faq-preview .section-more {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section {
    padding-top: 40px;
  }

  .section-head h2 {
    font-size: 23px;
  }

  .works-feature-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

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

  .duty-columns,
  .condition-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .split-media {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

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

  .dual-column {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .boundary-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .filter-bar {
    margin-top: 28px;
  }

  .filter-buttons {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .filter-btn {
    flex: 0 0 auto;
  }

  .direction-list {
    padding-top: 28px;
  }

  .direction-list h2,
  .feature-frame h2,
  .composition h2,
  .works-bridge h2,
  .faq-topics h2,
  .faq-group h2,
  .faq-related h2 {
    font-size: 22px;
  }

  .direction-item {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "tag"
      "name"
      "scene"
      "point"
      "link";
    gap: 6px;
    padding: 18px 0;
  }

  .direction-link {
    justify-self: start;
    margin-top: 4px;
  }

  .feature-frame,
  .composition {
    padding-top: 40px;
  }

  .feature-frame .media-figure,
  .content-figure,
  .workstyle-figure,
  .faq-figure {
    aspect-ratio: 16 / 10;
  }

  .feature-notes,
  .composition-grid,
  .related-list,
  .faq-related .related-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .works-bridge {
    margin-top: 40px;
    padding: 20px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    margin-top: 28px;
  }

  .stage-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 20px 0;
  }

  .stage-index {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }

  .stage-num {
    font-size: 22px;
  }

  .stage-facts {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .stage-link {
    margin-top: 36px;
    padding-top: 22px;
  }

  .page-anchor-nav {
    margin-top: 24px;
    padding: 12px 14px;
  }

  .content-section {
    padding-top: 40px;
  }

  .spec-table,
  .info-table {
    font-size: 14px;
  }

  .spec-table th,
  .spec-table td,
  .info-table th,
  .info-table td {
    padding: 10px 12px;
  }

  .info-table tbody th {
    width: 110px;
  }

  .change-list,
  .exclude-list,
  .steps-track,
  .workstyle-notes,
  .topic-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .faq-topics {
    padding-top: 32px;
  }

  .faq-group {
    padding-top: 32px;
  }

  .faq-related {
    margin-top: 40px;
  }

  .related-links {
    margin-top: 36px;
  }

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

  .error-inner h1 {
    font-size: 28px;
  }

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

  .site-footer {
    margin-top: 56px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 36px 16px 24px;
  }

  .footer-nav {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 16px 24px;
  }
}

@media (max-width: 420px) {
  .hero-text h1,
  .page-title {
    font-size: 26px;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .brand-slogan {
    display: none;
  }

  .faq-question,
  .faq-item summary {
    padding-right: 42px;
    font-size: 16px;
  }
}