/* ==========================================================================
   草莓视频 twodaysgo.com — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base — 变量、重置、排版基础
   -------------------------------------------------------------------------- */
:root {
  --c-bg: #0f1012;
  --c-panel: #1a1c1f;
  --c-panel-soft: #16181b;
  --c-text: #f2f2f0;
  --c-text-dim: #a3a5a2;
  --c-action: #ffffff;
  --c-action-text: #0f1012;
  --c-line: rgba(255, 255, 255, 0.12);
  --c-line-soft: rgba(255, 255, 255, 0.07);
  --c-footer-bg: #e9e7e2;
  --c-footer-text: #1a1c1f;
  --c-footer-line: rgba(26, 28, 31, 0.14);
  --w-shell: 1180px;
  --w-main: 760px;
  --w-aside: 260px;
  --gap-col: 40px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

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

body {
  margin: 0;
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

h1 {
  font-size: 34px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

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

:focus-visible {
  outline: 2px solid var(--c-action);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   layout — 全站骨架：页头、导航、主容器、内页两栏、页脚
   -------------------------------------------------------------------------- */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--c-bg);
  color: var(--c-text);
}

.site-main {
  flex: 1 0 auto;
  display: block;
}

/* 页头 --------------------------------------------------------------- */
.site-header {
  position: relative;
  z-index: 20;
  background-color: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
}

.notice-bar {
  border-bottom: 1px solid var(--c-line-soft);
}

.notice-link {
  display: block;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 9px 24px;
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--c-text-dim);
  transition: color 0.2s ease;
}

.notice-link:hover,
.notice-link:focus-visible {
  color: var(--c-text);
}

.header-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 16px 24px 14px;
}

.brand-logo {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  align-content: center;
}

.brand-name {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-text);
}

.brand-slogan {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 12px 10px;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--c-text);
}

/* 主导航 ------------------------------------------------------------- */
.site-nav {
  border-top: 1px solid var(--c-line-soft);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 28px;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-item > a {
  display: block;
  padding: 12px 2px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-text-dim);
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav-item > a:hover,
.nav-item > a:focus-visible {
  color: var(--c-text);
}

.nav-item.is-current > a {
  color: var(--c-text);
  border-bottom-color: var(--c-action);
}

/* 内页主容器 --------------------------------------------------------- */
.inner-main {
  display: block;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 32px 24px 72px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-text-dim);
}

.breadcrumb a {
  color: var(--c-text-dim);
  transition: color 0.2s ease;
}

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

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.3);
}

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

.page-header {
  margin: 18px 0 22px;
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-text);
}

.page-head {
  margin: 0 0 32px;
}

.page-lead {
  max-width: var(--w-main);
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.page-eyebrow {
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

.tag-row,
.page-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tag {
  display: inline-block;
  padding: 5px 12px;
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--c-text-dim);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

/* 内页两栏：主内容在前，右侧栏在后 ----------------------------------- */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--w-aside);
  gap: var(--gap-col);
  align-items: start;
}

.page-layout.inner-body {
  margin-top: 8px;
}

.page-layout.layout-shell {
  grid-template-columns: minmax(0, var(--w-main)) var(--w-aside);
  justify-content: start;
}

.page-content,
.page-article,
.scenario-groups {
  min-width: 0;
}

.related {
  min-width: 0;
  padding: 20px 18px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

/* 页脚 --------------------------------------------------------------- */
.site-footer {
  flex-shrink: 0;
  background-color: var(--c-footer-bg);
  color: var(--c-footer-text);
  border-top: 1px solid var(--c-footer-line);
}

.footer-inner {
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 44px 24px 32px;
}

.footer-brand {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--c-footer-line);
}

.footer-name {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-footer-text);
}

.footer-desc {
  margin-top: 8px;
  max-width: 720px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(26, 28, 31, 0.72);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 40px;
  padding: 26px 0;
}

.footer-title {
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-footer-text);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-list a {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(26, 28, 31, 0.74);
  transition: color 0.2s ease;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--c-footer-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-note {
  padding-top: 20px;
  border-top: 1px solid var(--c-footer-line);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(26, 28, 31, 0.68);
}

.footer-copy {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: rgba(26, 28, 31, 0.6);
}

/* --------------------------------------------------------------------------
   components — 通用按钮、图片、条目、折叠问答、相关路径
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 24px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background-color: var(--c-action);
  color: var(--c-action-text);
  border-color: var(--c-action);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #d9d9d6;
  border-color: #d9d9d6;
}

.btn-ghost {
  background-color: transparent;
  color: var(--c-text);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--c-action);
  background-color: rgba(255, 255, 255, 0.06);
}

/* 图片容器：统一比例与裁切 ------------------------------------------- */
.hero-figure,
.service-figure,
.content-figure,
.content-media,
.stage-media,
.page-media {
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: 6px;
  background-color: var(--c-panel);
}

.hero-figure img,
.service-figure img,
.content-figure img,
.content-media img,
.stage-media img,
.page-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.35s ease;
}

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

.service-figure img,
.content-figure img,
.content-media img,
.stage-media img {
  aspect-ratio: 16 / 10;
}

.page-media img {
  aspect-ratio: 21 / 9;
}

.hero-figure figcaption,
.service-figure figcaption,
.content-figure figcaption,
.content-media figcaption,
.stage-media figcaption {
  padding: 0 14px 14px;
}

.page-media-caption {
  padding: 0 14px 14px;
}

.scenario-card:hover .card-name,
.service-item:hover .item-name {
  color: var(--c-action);
}

/* 相关路径栏 --------------------------------------------------------- */
.related-title,
.aside-title {
  margin-bottom: 14px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}

.related-list,
.aside-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.related-item,
.aside-item {
  padding-top: 14px;
  border-top: 1px solid var(--c-line);
}

.related-item:first-child,
.aside-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.related-item a,
.aside-item a,
.related-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text);
  transition: color 0.2s ease;
}

.related-item a:hover,
.aside-item a:hover,
.related-link:hover,
.related-item a:focus-visible,
.aside-item a:focus-visible,
.related-link:focus-visible {
  color: var(--c-action);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.related-item p,
.aside-desc,
.related-desc {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-text-dim);
}

/* 折叠问答：首页与问答页共用结构，父级限定作用域 ---------------------- */
.faq-list,
.faq-group {
  display: flex;
  flex-direction: column;
}

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

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

.faq-question {
  position: relative;
  display: block;
  padding: 16px 44px 16px 2px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-text);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

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

.faq-question:hover,
.faq-question:focus-visible {
  color: var(--c-action);
}

.faq-question::after {
  content: "";
  position: absolute;
  top: 24px;
  right: 6px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--c-text-dim);
  border-bottom: 2px solid var(--c-text-dim);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.faq-item[open] > .faq-question::after {
  transform: rotate(-135deg);
}

.faq-answer {
  padding: 0 2px 20px;
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

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

.faq-answer a,
.faq-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.faq-answer a:hover,
.faq-link:hover,
.faq-answer a:focus-visible,
.faq-link:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* --------------------------------------------------------------------------
   pages — 首页
   -------------------------------------------------------------------------- */
/* 首屏：左侧文案 + 右侧主视觉 ---------------------------------------- */
.hero {
  border-bottom: 1px solid var(--c-line);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 64px 24px 56px;
}

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

.hero-eyebrow {
  margin-bottom: 16px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-dim);
}

.hero-copy h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.24;
}

.hero-lead {
  margin-top: 20px;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

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

/* 流程预览条：五节点 -------------------------------------------------- */
.flow-preview {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.flow-node {
  min-width: 0;
  padding: 18px 16px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.flow-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-text-dim);
}

.flow-name {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.flow-output {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-dim);
}

/* 三栏门户 ------------------------------------------------------------ */
.portal {
  display: block;
}

.portal-grid {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 260px;
  gap: 40px;
  align-items: start;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.portal-side-index,
.portal-side-notes,
.portal-main {
  min-width: 0;
}

.index-group + .index-group {
  margin-top: 28px;
}

.index-title {
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-text);
}

.index-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.index-list a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-dim);
  transition: color 0.2s ease;
}

.index-list a:hover,
.index-list a:focus-visible {
  color: var(--c-text);
}

/* 中栏模块 ------------------------------------------------------------ */
.module + .module {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--c-line);
}

.module-title {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.module-intro {
  margin-top: 12px;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.module-more {
  margin-top: 20px;
}

.module-more a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.module-more a:hover,
.module-more a:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* 服务概览：条目列表 + 配图 ------------------------------------------ */
.service-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
  gap: 32px;
  align-items: start;
  margin-top: 24px;
}

.service-list {
  display: flex;
  flex-direction: column;
}

.service-item {
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}

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

.item-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-text-dim);
}

.item-name {
  display: inline-block;
  margin-top: 6px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  transition: color 0.2s ease;
}

.item-audience,
.item-delivery {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.item-delivery {
  margin-top: 4px;
}

.item-delivery a {
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.item-delivery a:hover,
.item-delivery a:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* 场景卡片 ------------------------------------------------------------ */
.scenario-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.scenario-card {
  min-width: 0;
  padding: 22px 20px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  transition: border-color 0.25s ease;
}

.scenario-card:hover {
  border-color: rgba(255, 255, 255, 0.32);
}

.card-name {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  transition: color 0.2s ease;
}

.card-goal {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.card-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.card-link:hover,
.card-link:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* 制作流程节点（首页） ------------------------------------------------ */
.process-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
}

.process-node {
  min-width: 0;
  padding: 20px 16px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.process-node:hover {
  border-color: rgba(255, 255, 255, 0.32);
}

.node-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-text-dim);
}

.node-name {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.node-desc {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-dim);
}

/* 制作要素与交付标准 -------------------------------------------------- */
.elements-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 24px;
}

.elements-col {
  min-width: 0;
  padding: 22px 20px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.col-title {
  margin-bottom: 14px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.element-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.element-item {
  padding-top: 14px;
  border-top: 1px solid var(--c-line-soft);
}

.element-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.element-item h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
}

.element-item p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.delivery-list {
  display: flex;
  flex-direction: column;
}

.delivery-list dt {
  padding-top: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text);
}

.delivery-list dt:first-child {
  padding-top: 0;
}

.delivery-list dd {
  margin: 4px 0 0;
  padding-bottom: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
  border-bottom: 1px solid var(--c-line-soft);
}

.delivery-list dd:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

/* 合作准备清单 -------------------------------------------------------- */
.prepare-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
  margin-top: 24px;
  counter-reset: prepare;
}

.prepare-item {
  min-width: 0;
  padding-left: 44px;
  position: relative;
}

.prepare-item::before {
  counter-increment: prepare;
  content: counter(prepare, decimal-leading-zero);
  position: absolute;
  top: 2px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

.prepare-item h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.prepare-item p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

/* 合作起点 ------------------------------------------------------------ */
.start-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 24px;
}

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

.start-col p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.start-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  counter-reset: start;
}

.start-steps li {
  position: relative;
  padding-left: 40px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.start-steps li::before {
  counter-increment: start;
  content: counter(start, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-text);
}

.start-steps a {
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.start-steps a:hover,
.start-steps a:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* 右侧说明栏 ---------------------------------------------------------- */
.notes-block + .notes-block {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
}

.notes-title {
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.notes-text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.notes-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.notes-list a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-dim);
  transition: color 0.2s ease;
}

.notes-list a:hover,
.notes-list a:focus-visible {
  color: var(--c-text);
}

.notes-link {
  margin-top: 12px;
}

.notes-link a {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.notes-link a:hover,
.notes-link a:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* --------------------------------------------------------------------------
   pages — 内页：服务范围
   -------------------------------------------------------------------------- */
.service-item-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.service-item-head h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.service-item-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 280px);
  gap: 32px;
  align-items: start;
}

.service-item-text {
  min-width: 0;
}

.service-item-text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-text-dim);
}

.service-item-text p + p {
  margin-top: 12px;
}

.service-meta {
  min-width: 0;
  padding: 18px 18px 6px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.service-meta dt {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-text);
}

.service-meta dd {
  margin: 6px 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

#corporate-film,
#product-video,
#short-video,
#live-planning {
  padding: 28px 0;
  border-top: 1px solid var(--c-line);
  scroll-margin-top: 24px;
}

.content-figure {
  margin: 32px 0;
}

.service-boundary {
  margin-top: 40px;
  padding: 28px 24px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.service-boundary h2 {
  font-size: 20px;
  font-weight: 600;
}

.service-boundary > p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

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

.boundary-item {
  min-width: 0;
  padding-top: 16px;
  border-top: 1px solid var(--c-line);
}

.boundary-item h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
}

.boundary-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages — 内页：场景归档
   -------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 28px;
  margin-bottom: 32px;
  padding: 18px 20px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  min-width: 0;
}

.filter-label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

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

.filter-btn {
  min-height: 44px;
  padding: 8px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-text-dim);
  background-color: transparent;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.filter-btn:hover,
.filter-btn:focus-visible {
  color: var(--c-text);
  border-color: rgba(255, 255, 255, 0.4);
}

.filter-btn.is-active,
.filter-btn[aria-pressed="true"] {
  color: var(--c-action-text);
  background-color: var(--c-action);
  border-color: var(--c-action);
}

.filter-clear {
  min-height: 44px;
  padding: 8px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-text);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 4px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.filter-clear:hover,
.filter-clear:focus-visible {
  border-color: var(--c-action);
  background-color: rgba(255, 255, 255, 0.06);
}

.scenario-groups {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.scenario-group {
  min-width: 0;
  scroll-margin-top: 24px;
}

.group-head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}

.group-title {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.group-summary {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

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

.scenario-item {
  min-width: 0;
  padding: 20px 18px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  transition: border-color 0.25s ease;
}

.scenario-item:hover {
  border-color: rgba(255, 255, 255, 0.32);
}

.scenario-name {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.scenario-direction,
.scenario-source {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.scenario-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.scenario-link:hover,
.scenario-link:focus-visible {
  color: var(--c-action);
  border-bottom-color: var(--c-action);
}

/* --------------------------------------------------------------------------
   pages — 内页：制作流程
   -------------------------------------------------------------------------- */
.stage-flow > h2,
.confirm-method > h2,
.production-elements > h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.section-intro {
  margin-top: 10px;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.stage-media {
  margin: 24px 0 8px;
}

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

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

.stage-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.stage-num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-text-dim);
}

.stage-head h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
}

.stage-goal {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.stage-detail {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 8px 20px;
  margin-top: 18px;
}

.stage-detail dt {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.8;
  color: var(--c-text);
}

.stage-detail dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.stage-block.is-highlight {
  background-color: rgba(255, 255, 255, 0.04);
}

.confirm-method {
  margin-top: 48px;
}

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

.confirm-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.confirm-item h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.confirm-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.production-elements {
  margin-top: 48px;
}

.elements-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 22px;
}

.elements-grid .elements-col {
  padding: 22px 20px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.elements-grid .element-item h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.elements-grid .element-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages — 内页：合作准备
   -------------------------------------------------------------------------- */
.brief-intro {
  margin-bottom: 40px;
}

.brief-intro h2,
.brief-checklist h2,
.brief-details h2,
.brief-rounds h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.brief-intro .content-figure {
  margin: 20px 0;
}

.brief-intro > p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-text-dim);
}

.section-note {
  margin-top: 10px;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.brief-checklist,
.brief-details,
.brief-rounds {
  margin-top: 44px;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
  margin-top: 22px;
  counter-reset: brief;
}

.checklist-item {
  position: relative;
  min-width: 0;
  padding-left: 44px;
}

.checklist-item::before {
  counter-increment: brief;
  content: counter(brief, decimal-leading-zero);
  position: absolute;
  top: 2px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

.checklist-item h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.checklist-item p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.detail-list {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: 0 32px;
  margin-top: 22px;
}

.detail-list dt {
  padding: 14px 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-text);
  border-top: 1px solid var(--c-line);
}

.detail-list dd {
  margin: 0;
  padding: 14px 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
  border-top: 1px solid var(--c-line);
}

.rounds-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 22px;
}

.rounds-item {
  min-width: 0;
  padding: 18px 20px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.rounds-item h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.rounds-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages — 内页：协作方式
   -------------------------------------------------------------------------- */
.content-block + .content-block {
  margin-top: 44px;
}

.content-block > h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.content-block > p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-text-dim);
}

.content-media {
  margin: 22px 0 4px;
}

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

.role-column {
  min-width: 0;
  padding: 22px 20px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
}

.role-column-title {
  margin-bottom: 14px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.role-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.role-item {
  padding-top: 14px;
  border-top: 1px solid var(--c-line-soft);
}

.role-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.role-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
}

.role-desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.rhythm-list {
  display: flex;
  flex-direction: column;
  counter-reset: rhythm;
  margin-top: 22px;
}

.rhythm-item {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: 8px 28px;
  padding: 16px 0;
  border-top: 1px solid var(--c-line);
}

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

.rhythm-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-text);
}

.rhythm-desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.rhythm-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.ownership-list {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: 0 28px;
  margin-top: 22px;
}

.ownership-term {
  padding: 14px 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-text);
  border-top: 1px solid var(--c-line);
}

.ownership-desc {
  margin: 0;
  padding: 14px 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
  border-top: 1px solid var(--c-line);
}

.change-list {
  display: flex;
  flex-direction: column;
  margin-top: 22px;
}

.change-item {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: 8px 28px;
  padding: 16px 0;
  border-top: 1px solid var(--c-line);
}

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

.change-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-text);
}

.change-desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages — 内页：常见问题
   -------------------------------------------------------------------------- */
.faq-group + .faq-group {
  margin-top: 44px;
}

.faq-group > h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.group-intro {
  margin-top: 10px;
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.page-faq .content-figure {
  margin: 40px 0 0;
}

/* --------------------------------------------------------------------------
   pages — 404
   -------------------------------------------------------------------------- */
.error-main {
  display: block;
  max-width: var(--w-shell);
  margin: 0 auto;
  padding: 72px 24px 80px;
}

.error-panel {
  max-width: 640px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--c-text-dim);
}

.error-title {
  margin-top: 14px;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
}

.error-text {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.error-paths {
  margin-top: 64px;
  padding-top: 36px;
  border-top: 1px solid var(--c-line);
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.error-path-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 32px;
  margin-top: 22px;
}

.error-path-item {
  min-width: 0;
  padding: 16px 0;
  border-top: 1px solid var(--c-line);
}

.error-path-item a {
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text);
  transition: color 0.2s ease;
}

.error-path-item a:hover,
.error-path-item a:focus-visible {
  color: var(--c-action);
}

.error-path-desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   responsive — 1080px 与 720px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .hero-inner {
    gap: 36px;
    padding: 52px 24px 44px;
  }

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

  .portal-grid {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 32px;
  }

  .portal-side-notes {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--c-line);
  }

  .notes-block + .notes-block {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }

  .flow-preview,
  .process-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-layout,
  .page-layout.layout-shell {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 32px;
  }

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

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

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

  h2,
  .module-title,
  .group-title,
  .content-block > h2,
  .faq-group > h2,
  .brief-intro h2,
  .brief-checklist h2,
  .brief-details h2,
  .brief-rounds h2,
  .stage-flow > h2,
  .confirm-method > h2,
  .production-elements > h2,
  .section-title,
  .service-item-head h2 {
    font-size: 20px;
  }

  h3,
  .stage-head h3 {
    font-size: 17px;
  }

  /* 页头与折叠导航 */
  .notice-link {
    padding: 8px 16px;
  }

  .header-brand {
    padding: 14px 16px;
  }

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

  .brand-slogan {
    font-size: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 0 16px 12px;
  }

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

  .nav-item > a {
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--c-line-soft);
    border-left: 2px solid transparent;
  }

  .nav-item.is-current > a {
    border-bottom-color: var(--c-line-soft);
    border-left-color: var(--c-action);
    padding-left: 10px;
  }

  /* 主容器与内页 */
  .inner-main {
    padding: 24px 16px 56px;
  }

  .page-header {
    margin: 14px 0 18px;
  }

  .page-head {
    margin-bottom: 26px;
  }

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

  .related {
    padding: 18px 16px;
  }

  /* 首页 */
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 36px 16px 32px;
  }

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

  .hero-lead {
    margin-top: 16px;
    font-size: 15px;
  }

  .hero-actions {
    gap: 12px;
    margin-top: 22px;
  }

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

  .flow-preview {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 0 16px 40px;
  }

  .portal-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
    padding: 40px 16px 56px;
  }

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

  .index-group + .index-group {
    margin-top: 0;
  }

  .portal-side-notes {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-top: 28px;
  }

  .notes-block + .notes-block {
    margin-top: 0;
    padding-top: 24px;
    border-top: 1px solid var(--c-line);
  }

  .module + .module {
    margin-top: 40px;
    padding-top: 34px;
  }

  .service-overview,
  .service-item-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .scenario-cards,
  .scenario-list,
  .boundary-list,
  .process-track,
  .elements-columns,
  .confirm-list,
  .elements-grid,
  .role-columns,
  .error-path-list,
  .prepare-list,
  .checklist,
  .start-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .process-track {
    gap: 10px;
  }

  /* 场景筛选 */
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
  }

  .filter-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

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

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

  .filter-clear {
    width: 100%;
  }

  /* 流程与协作 */
  .stage-detail {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px 0;
  }

  .stage-detail dt {
    margin-top: 10px;
  }

  .rhythm-item,
  .change-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

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

  .detail-list dt,
  .ownership-term {
    padding-bottom: 0;
    border-top: 1px solid var(--c-line);
  }

  .detail-list dd,
  .ownership-desc {
    padding-top: 6px;
  }

  /* 404 */
  .error-main {
    padding: 48px 16px 64px;
  }

  .error-paths {
    margin-top: 48px;
  }

  /* 页脚 */
  .footer-inner {
    padding: 36px 16px 28px;
  }

  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 22px 0;
  }
}