/* ==========================================================================
   蕾丝视频 · dzkljj.com 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */
:root {
  --ink: #0f1b2d;
  --ink-soft: #24354d;
  --paper: #f4f6f9;
  --white: #ffffff;
  --line-1: #e8542f;
  --line-2: #1f9d8f;
  --line-3: #e6b422;
  --line-4: #c2418f;
  --muted: #5a6b80;
  --hair: #d7dee7;
  --hair-strong: #b9c4d2;
  --radius: 6px;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --shell: 1120px;
  --prose: 720px;
  --toc-w: 220px;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

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

p {
  margin: 0;
}

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

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

a:hover {
  color: var(--line-1);
}

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
}

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

.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;
}

/* 线路色工具类 */
.line-1 {
  --line: var(--line-1);
}

.line-2 {
  --line: var(--line-2);
}

.line-3 {
  --line: var(--line-3);
}

.line-4 {
  --line: var(--line-4);
}

/* 线路色方块 */
.line-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  flex: 0 0 10px;
  background: var(--line, var(--muted));
  vertical-align: middle;
}

/* 线路色站牌标签 */
.line-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px 3px 8px;
  border-left: 4px solid var(--line, var(--muted));
  background: rgba(15, 27, 45, 0.045);
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   layout · 全站骨架
   -------------------------------------------------------------------------- */
.site-body {
  display: block;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--ink);
  color: #eef2f7;
  border-bottom: 3px solid var(--line-2);
}

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

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  color: #ffffff;
}

.brand:hover {
  color: #ffffff;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.brand-sub {
  color: #9fb0c6;
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.site-nav {
  min-width: 0;
}

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

.nav-item > a {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 11px;
  border-bottom: 2px solid transparent;
  color: #c9d5e4;
  font-size: 14px;
  line-height: 1.4;
  transition: color 150ms ease, border-color 150ms ease, background-color 150ms ease;
}

.nav-item > a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-item.is-current > a,
.nav-item > a.is-current {
  color: #ffffff;
  border-bottom-color: var(--line-2);
}

.nav-item.is-current .line-dot,
.nav-item > a.is-current .line-dot {
  background: var(--line-2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: #eef2f7;
}

.site-main {
  display: block;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.home-main {
  padding-top: 0;
}

.inner-main {
  padding-top: 20px;
}

.container {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.breadcrumb a {
  color: var(--muted);
  border-bottom: 1px solid var(--hair-strong);
}

.breadcrumb a:hover {
  color: var(--line-1);
  border-bottom-color: var(--line-1);
}

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

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

/* 页面标题区（统一 H1 层级） */
.page-header {
  margin: 0 0 20px;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--hair);
}

.page-title {
  font-size: 34px;
  line-height: 1.3;
  color: var(--ink);
}

/* 内页统一页标题区 */
.inner-main .page-title,
.page-head .page-title {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--ink);
}

.page-head {
  padding: 22px 0 4px;
}

.page-head .container {
  border-bottom: 1px solid var(--hair);
  padding-bottom: 18px;
}

.page-title-main {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--prose);
}

.page-lead {
  max-width: var(--prose);
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}

.page-title-meta,
.title-meta,
.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 16px 0 0;
}

.page-title-meta > div,
.title-meta > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-title-meta dt,
.title-meta dt,
.page-meta dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-title-meta dd,
.title-meta dd,
.page-meta dd {
  margin: 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
}

.page-meta li {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
}

/* 通用内页标题区（section.page-title 变体） */
.inner-main > .page-title {
  margin: 0 0 22px;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--hair);
}

.inner-main > .page-title .page-title-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: var(--prose);
}

.inner-main > .page-title .page-intro {
  color: var(--ink-soft);
}

.inner-main > .page-title .page-label,
.inner-main > .page-title .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.inner-main > .page-title .page-meta {
  margin-top: 4px;
}

.inner-main > .page-title .page-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.inner-main > .page-title .page-tags li {
  padding: 3px 10px;
  border: 1px solid var(--hair);
  background: var(--white);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
}

/* 双栏布局：默认正文在前，aside 在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--toc-w);
  gap: 40px;
  align-items: start;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
}

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

/* 侧栏在左（DOM 中 aside 在 main 之前） */
.page-layout.sidebar-left,
.sidebar-left .page-layout {
  grid-template-columns: var(--toc-w) minmax(0, 1fr);
}

.page-layout.sidebar-left > .content-main,
.page-layout.sidebar-left > .page-content,
.page-layout.sidebar-left > .content-col,
.sidebar-left .page-layout > .content-main,
.sidebar-left .page-layout > .page-content,
.sidebar-left .page-layout > .content-col {
  grid-column: 2;
  min-width: 0;
}

.page-layout.sidebar-left > .aside-toc,
.page-layout.sidebar-left > .page-toc,
.page-layout.sidebar-left > .page-aside,
.sidebar-left .page-layout > .aside-toc,
.sidebar-left .page-layout > .page-toc,
.sidebar-left .page-layout > .page-aside {
  grid-column: 1;
  grid-row: 1;
}

/* 侧栏在右 */
.page-layout > .page-content,
.page-layout > .content-main,
.page-layout > .content-col {
  min-width: 0;
}

.site-footer {
  margin-top: 8px;
  background: var(--ink);
  color: #b9c6d6;
  border-top: 2px solid var(--line-2);
  font-size: 14px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

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

.footer-name {
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.footer-desc {
  margin-top: 8px;
  color: #93a4ba;
  font-size: 13px;
  line-height: 1.7;
}

.footer-title {
  margin-bottom: 12px;
  color: #ffffff;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.footer-lines li a,
.footer-nav li a {
  display: block;
  min-height: 44px;
  padding: 11px 0;
  color: #b9c6d6;
  font-size: 14px;
  line-height: 1.5;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-lines li a:hover,
.footer-nav li a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #8b9cb2;
  font-size: 12px;
}

.footer-copy {
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* --------------------------------------------------------------------------
   components · 通用组件
   -------------------------------------------------------------------------- */
/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.4;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}

.btn-primary {
  background: var(--line-1);
  border-color: var(--line-1);
  color: #ffffff;
}

.btn-primary:hover {
  background: #c9441f;
  border-color: #c9441f;
  color: #ffffff;
}

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

.btn-ghost:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: rgba(15, 27, 45, 0.05);
}

/* 区块标题组 */
.section-head {
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}

.section-head h2 {
  font-size: 22px;
  line-height: 1.4;
}

.section-desc,
.section-lead,
.section-intro {
  margin-top: 8px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

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

.section-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.section-note a {
  border-bottom: 1px solid var(--hair-strong);
}

/* 站点编号方块 */
.station-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 26px;
  padding: 0 6px;
  background: var(--ink);
  color: #ffffff;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1;
}

/* 勾选清单 */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 10px 0 0;
}

.check-list li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--line, var(--muted));
}

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

.compare-table,
.data-table {
  min-width: 640px;
  font-size: 14px;
}

.compare-table th,
.compare-table td,
.data-table th,
.data-table td {
  padding: 12px 14px;
  border: 1px solid var(--hair);
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
}

.compare-table thead th,
.data-table thead th {
  background: #eef1f6;
  color: var(--ink);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.compare-table tbody th,
.data-table tbody th {
  background: #f8fafc;
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

.compare-table td,
.data-table td {
  color: var(--ink-soft);
}

/* 折叠问答 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--hair);
  background: var(--white);
}

.faq-item summary {
  position: relative;
  padding: 14px 44px 14px 16px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
}

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

.faq-item summary:hover {
  color: var(--line-1);
}

.faq-answer {
  padding: 0 16px 16px;
  border-top: 1px solid var(--hair);
}

.faq-answer p {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* 相关链接带 */
.related-links {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 2px solid var(--hair-strong);
}

.related-links h2,
.related-title {
  margin-bottom: 14px;
  font-size: 17px;
  line-height: 1.5;
}

.related-links-label {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

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

.related-item a,
.related-links-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 44px;
  padding: 14px 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line-2);
  background: var(--white);
  transition: border-color 150ms ease, background-color 150ms ease;
}

.related-item a:hover,
.related-links-item:hover {
  border-color: var(--hair-strong);
  border-left-color: var(--line-1);
  background: #fbfcfe;
}

.related-name {
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.related-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.related-item p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

/* 目录 */
.toc-title,
.aside-title {
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--hair);
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.toc-title a,
.aside-title a {
  color: var(--ink);
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-list li a {
  display: block;
  min-height: 44px;
  padding: 11px 10px 11px 12px;
  border-left: 3px solid var(--hair);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
  transition: border-color 150ms ease, color 150ms ease, background-color 150ms ease;
}

.toc-list li a:hover {
  border-left-color: var(--line-1);
  background: var(--white);
  color: var(--ink);
}

.toc-back {
  margin-top: 14px;
  font-size: 13px;
}

.toc-back a {
  color: var(--muted);
  border-bottom: 1px solid var(--hair-strong);
}

/* 侧栏容器 */
.aside-toc,
.page-toc,
.page-aside {
  position: sticky;
  top: 84px;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--hair);
  background: var(--white);
}

/* 图片容器 */
.hero-media img,
.gallery-media img,
.line-figure img,
.media-block img,
.media-item img,
.content-figure img,
.faq-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  background: #e6eaf0;
}

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.hero {
  padding: 32px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

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

.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--hair);
}

.hero-media-cap {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 3px solid var(--line-1);
  color: var(--muted);
  font-size: 13px;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.hero-label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.hero-panel h1 {
  font-size: 34px;
  line-height: 1.3;
}

.hero-lead {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}

.hero-index {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--hair);
}

.hero-index-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--hair);
}

.hero-index-item .line-tag {
  flex: 0 0 auto;
  min-width: 96px;
  justify-content: center;
}

.hero-index-item p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.65;
}

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

/* 制作线总览 */
.production-lines {
  padding: 44px 0;
  border-top: 1px solid var(--hair);
}

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

.line-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line, var(--muted));
  background: var(--white);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.line-card:hover {
  border-color: var(--hair-strong);
  border-left-color: var(--line, var(--muted));
  box-shadow: 0 2px 10px rgba(15, 27, 45, 0.07);
}

.line-card .line-bar {
  display: block;
  width: 32px;
  height: 3px;
  background: var(--line, var(--muted));
}

.line-card .line-no {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.line-card h3 {
  font-size: 17px;
  line-height: 1.45;
}

.line-card .line-scene {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.line-card .line-deliver {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--hair);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

/* 六站流程 */
.process-stations {
  padding: 44px 0;
  border-top: 1px solid var(--hair);
}

.station-track {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  border-top: 2px solid var(--hair-strong);
}

.station {
  position: relative;
  padding: 20px 14px 16px 0;
  border-right: 1px solid var(--hair);
}

.station:last-child {
  border-right: 0;
}

.station::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--ink);
}

.station .station-no {
  margin-bottom: 10px;
}

.station h3 {
  font-size: 16px;
  line-height: 1.45;
}

.station p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

/* 影像类型展廊 */
.gallery {
  padding: 44px 0;
  border-top: 1px solid var(--hair);
}

.gallery-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--hair);
}

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

.gallery-row.is-reverse .gallery-media {
  order: 2;
}

.gallery-row.is-reverse .gallery-caption {
  order: 1;
}

.gallery-media {
  min-width: 0;
}

.gallery-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--hair);
}

.gallery-caption {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.gallery-caption h3 {
  font-size: 17px;
  line-height: 1.45;
}

.gallery-caption p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* 服务范围双列 */
.coverage-split {
  padding: 44px 0;
  border-top: 1px solid var(--hair);
}

.coverage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.coverage-intro {
  min-width: 0;
}

.coverage-intro h2 {
  font-size: 22px;
  line-height: 1.4;
}

.coverage-intro p {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.coverage-intro .link-more {
  display: inline-block;
  margin-top: 16px;
  min-height: 44px;
  padding: 11px 0;
  border-bottom: 2px solid var(--line-1);
  color: var(--ink);
  font-size: 14px;
}

.coverage-intro .link-more:hover {
  color: var(--line-1);
}

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

.coverage-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--hair);
}

.coverage-item h3 {
  font-size: 16px;
  line-height: 1.45;
}

.coverage-item p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

/* 拍摄筹备要点 */
.prep-checklist {
  padding: 44px 0;
  border-top: 1px solid var(--hair);
}

.prep-grid {
  display: grid;
  grid-template-columns: var(--toc-w) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.prep-toc {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--hair);
  background: var(--white);
}

.prep-toc h2 {
  margin-bottom: 8px;
  font-size: 17px;
  line-height: 1.45;
}

.prep-toc > p {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.prep-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.prep-item {
  padding: 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line-2);
  background: var(--white);
}

.prep-item h3 {
  font-size: 16px;
  line-height: 1.45;
}

.prep-item p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* 首页问答预览 */
.faq-preview {
  padding: 44px 0 8px;
  border-top: 1px solid var(--hair);
}

.faq-preview .section-head {
  margin-bottom: 20px;
}

/* --------------------------------------------------------------------------
   pages · 服务项目
   -------------------------------------------------------------------------- */
.compare-section {
  margin-bottom: 40px;
}

.compare-section h2,
.line-section h2,
.deliverable-section h2 {
  font-size: 22px;
  line-height: 1.4;
}

.compare-section .section-lead,
.deliverable-section .section-lead {
  margin-top: 8px;
  margin-bottom: 16px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.line-section {
  margin-bottom: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--hair);
}

.line-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.line-head h2 {
  font-size: 22px;
  line-height: 1.4;
}

.line-body {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

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

.line-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--hair);
}

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

.line-text h3 {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.45;
}

.line-text h3:first-child {
  margin-top: 0;
}

.line-text p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.line-text .check-list {
  margin-top: 8px;
}

.line-steps {
  margin-top: 16px;
  padding: 10px 12px;
  border-left: 3px solid var(--line, var(--muted));
  background: #f8fafc;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

.deliverable-section {
  padding-top: 24px;
  border-top: 1px solid var(--hair);
}

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

.deliverable-card {
  padding: 16px;
  border: 1px solid var(--hair);
  border-top: 3px solid var(--line-2);
  background: var(--white);
}

.deliverable-card h3 {
  font-size: 16px;
  line-height: 1.45;
}

.deliverable-card p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.deliverable-section .section-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages · 影像类型
   -------------------------------------------------------------------------- */
.type-index {
  margin: 0 0 32px;
  padding: 14px 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.type-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.type-index-item a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line, var(--muted));
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.type-index-item a:hover {
  border-color: var(--hair-strong);
  border-left-color: var(--line, var(--muted));
  background: #fbfcfe;
}

.gallery .section-title {
  margin-bottom: 8px;
}

.gallery .section-lead {
  margin-bottom: 20px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.gallery-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  padding: 26px 0;
  border-top: 1px solid var(--hair);
}

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

.gallery-item-b .gallery-caption {
  order: 1;
}

.gallery-item .gallery-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--hair);
}

.gallery-item .gallery-caption {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gallery-item .gallery-caption h3 {
  font-size: 17px;
  line-height: 1.45;
}

.exhibit-spec {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 8px 14px;
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--hair);
}

.exhibit-spec dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.7;
}

.exhibit-spec dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   pages · 制作流程
   -------------------------------------------------------------------------- */
.layout-shell {
  align-items: start;
}

.stations-bar {
  margin-bottom: 32px;
  padding-top: 8px;
}

.stations-bar .section-title {
  font-size: 22px;
  line-height: 1.4;
}

.stations-bar .section-intro {
  margin-top: 8px;
  margin-bottom: 18px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.station-track .station-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 12px 14px 0;
  border-top: 2px solid var(--hair-strong);
  border-right: 1px solid var(--hair);
}

.station-track .station-item:last-child {
  border-right: 0;
}

.station-track .station-item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--ink);
}

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

.station-blocks {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.station-block {
  padding: 20px;
  border: 1px solid var(--hair);
  background: var(--white);
}

.station-block-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hair);
}

.station-block-head h2 {
  font-size: 20px;
  line-height: 1.4;
}

.station-block > p {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.station-block .media-block {
  margin: 16px 0;
}

.station-block .media-block img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--hair);
}

.station-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.pair-col {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--hair);
  border-top: 3px solid var(--line-2);
  background: #fbfcfe;
}

.pair-col h3 {
  font-size: 15px;
  line-height: 1.45;
}

.pair-col p,
.pair-col ul {
  margin-top: 8px;
}

.pair-col p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.pair-col .check-list li {
  font-size: 14px;
}

.matrix-section {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--hair);
}

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

.matrix-section .section-intro {
  margin-top: 8px;
  margin-bottom: 16px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

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

/* --------------------------------------------------------------------------
   pages · 服务范围
   -------------------------------------------------------------------------- */
.coverage-modes {
  padding-bottom: 8px;
}

.coverage-modes h2,
.coverage-media h2,
.coverage-prepare h2,
.coverage-trouble h2 {
  font-size: 22px;
  line-height: 1.4;
}

.coverage-modes .section-lead,
.coverage-media .section-lead,
.coverage-prepare .section-lead,
.coverage-trouble .section-lead {
  margin-top: 8px;
  margin-bottom: 18px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.mode-block {
  margin-bottom: 20px;
  padding: 18px;
  border: 1px solid var(--hair);
  background: var(--white);
}

.mode-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hair);
}

.mode-head h3 {
  font-size: 17px;
  line-height: 1.45;
}

.mode-head .line-tag {
  margin-left: auto;
}

.mode-body > p {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.mode-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.mode-col {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--hair);
  border-top: 3px solid var(--line-2);
  background: #fbfcfe;
}

.mode-col h4 {
  font-size: 15px;
  line-height: 1.45;
}

.mode-col p,
.mode-col ul {
  margin-top: 8px;
}

.mode-col p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.mode-col .check-list li {
  font-size: 14px;
}

.coverage-media {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--hair);
}

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

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

.media-item img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--hair);
}

.coverage-prepare {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--hair);
}

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

.prepare-group {
  padding: 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line-2);
  background: var(--white);
}

.prepare-group h3 {
  font-size: 16px;
  line-height: 1.45;
}

.coverage-trouble {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--hair);
}

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

.trouble-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--hair);
}

.trouble-item h3 {
  font-size: 16px;
  line-height: 1.45;
}

.trouble-item p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   pages · 常见问题
   -------------------------------------------------------------------------- */
.stage-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 30px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--hair);
}

.stage-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line, var(--muted));
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.stage-tab:hover {
  border-color: var(--hair-strong);
  background: #fbfcfe;
}

.faq-group {
  margin-bottom: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--hair);
}

.faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

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

.faq-group-desc {
  flex: 1 1 260px;
  min-width: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.faq-media {
  margin-bottom: 18px;
}

.faq-media img {
  width: 100%;
  max-height: 340px;
  aspect-ratio: 16 / 7;
  border: 1px solid var(--hair);
}

.faq-group .related-list {
  margin-top: 16px;
}

/* --------------------------------------------------------------------------
   pages · 合作与报价
   -------------------------------------------------------------------------- */
.quote-parts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.quote-part {
  padding: 16px;
  border: 1px solid var(--hair);
  border-top: 3px solid var(--line-3);
  background: var(--white);
}

.quote-part h3 {
  font-size: 16px;
  line-height: 1.45;
}

.quote-part p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.content-section {
  margin-bottom: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--hair);
}

.content-section h2 {
  font-size: 22px;
  line-height: 1.4;
}

.content-section > p {
  margin-top: 8px;
  margin-bottom: 18px;
  max-width: var(--prose);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

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

.factor-item {
  padding: 14px 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line-4);
  background: var(--white);
}

.factor-item h3 {
  font-size: 15px;
  line-height: 1.45;
}

.factor-item p {
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.content-figure {
  margin-bottom: 20px;
}

.content-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--hair);
}

.prep-checklist {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--hair);
}

.prep-checklist li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hair);
}

.prep-name {
  flex: 0 0 140px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.prep-tip {
  flex: 1 1 240px;
  min-width: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 18px 16px 16px;
  border: 1px solid var(--hair);
  border-top: 3px solid var(--line-1);
  background: var(--white);
}

.step-item h3 {
  font-size: 16px;
  line-height: 1.45;
}

.step-item p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  padding-top: 40px;
}

.error-block {
  max-width: 640px;
  padding: 32px 28px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line-1);
  background: var(--white);
}

.error-code {
  color: var(--line-1);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.error-title {
  margin-top: 10px;
  font-size: 34px;
  line-height: 1.3;
}

.error-text {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.error-block .btn {
  margin-top: 20px;
}

.error-links {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 2px solid var(--hair-strong);
}

.error-links ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.error-links li a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 12px 16px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--line-2);
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
}

.error-links li a:hover {
  border-color: var(--hair-strong);
  color: var(--line-1);
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .header-inner {
    gap: 12px;
    padding: 12px 18px;
  }

  .brand-sub {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 30;
    background: var(--ink);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 18px 14px;
  }

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

  .nav-item > a {
    min-height: 48px;
    padding: 12px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-item.is-current > a,
  .nav-item > a.is-current {
    border-bottom-color: rgba(255, 255, 255, 0.1);
    border-left: 3px solid var(--line-2);
    padding-left: 10px;
  }

  .site-main {
    padding: 0 18px 44px;
  }

  .inner-main {
    padding-top: 16px;
  }

  .page-layout,
  .page-layout.sidebar-left,
  .sidebar-left .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .page-layout.sidebar-left > .content-main,
  .page-layout.sidebar-left > .page-content,
  .page-layout.sidebar-left > .content-col,
  .sidebar-left .page-layout > .content-main,
  .sidebar-left .page-layout > .page-content,
  .sidebar-left .page-layout > .content-col {
    grid-column: 1;
    grid-row: auto;
  }

  .page-layout.sidebar-left > .aside-toc,
  .page-layout.sidebar-left > .page-toc,
  .page-layout.sidebar-left > .page-aside,
  .sidebar-left .page-layout > .aside-toc,
  .sidebar-left .page-layout > .page-toc,
  .sidebar-left .page-layout > .page-aside {
    grid-column: 1;
    grid-row: auto;
  }

  .aside-toc,
  .page-toc,
  .page-aside {
    position: static;
  }

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

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

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

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

  .station,
  .station-track .station-item {
    border-right: 0;
    border-bottom: 1px solid var(--hair);
    padding-left: 12px;
  }

  .gallery-row,
  .gallery-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .gallery-row.is-reverse .gallery-media,
  .gallery-item-b .gallery-media {
    order: 0;
  }

  .gallery-row.is-reverse .gallery-caption,
  .gallery-item-b .gallery-caption {
    order: 0;
  }

  .coverage-grid,
  .prep-grid,
  .line-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 18px 24px;
  }

  .footer-bottom {
    padding: 14px 18px 28px;
  }
}

@media (max-width: 640px) {
  body,
  .site-body {
    font-size: 15px;
    line-height: 1.7;
  }

  .site-main {
    padding: 0 14px 36px;
  }

  .header-inner {
    padding: 10px 14px;
  }

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

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

  .section-head h2,
  .section-title,
  .compare-section h2,
  .line-section h2,
  .deliverable-section h2,
  .coverage-modes h2,
  .coverage-media h2,
  .coverage-prepare h2,
  .coverage-trouble h2,
  .content-section h2,
  .faq-group-head h2,
  .matrix-section .section-title,
  .stations-bar .section-title,
  .coverage-intro h2 {
    font-size: 20px;
  }

  .hero {
    padding: 20px 0 32px;
  }

  .production-lines,
  .process-stations,
  .gallery,
  .coverage-split,
  .prep-checklist,
  .faq-preview {
    padding: 30px 0;
  }

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

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

  .hero-index-item {
    flex-wrap: wrap;
    gap: 8px;
  }

  .hero-index-item .line-tag {
    min-width: 0;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }

  .deliverable-grid,
  .prepare-grid,
  .quote-parts-grid,
  .factor-list,
  .media-grid,
  .mode-cols,
  .station-pair,
  .step-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

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

  .exhibit-spec dt {
    margin-top: 8px;
  }

  .prep-name {
    flex: 1 1 100%;
  }

  .compare-table,
  .data-table {
    min-width: 560px;
  }

  .mode-head .line-tag {
    margin-left: 0;
  }

  .error-block {
    padding: 24px 18px;
  }

  .footer-lines li a,
  .footer-nav li a {
    padding: 12px 0;
  }
}

/* 渐入增强：仅在支持环境下生效，且不影响初始可见性 */
@media (prefers-reduced-motion: no-preference) {
  .line-card,
  .gallery-item,
  .station-block,
  .mode-block,
  .faq-group,
  .quote-part,
  .factor-item,
  .prepare-group,
  .trouble-item,
  .step-item {
    transition: border-color 150ms ease, box-shadow 150ms ease;
  }

  .gallery-item:hover,
  .station-block:hover,
  .mode-block:hover {
    border-color: var(--hair-strong);
  }
}

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

/* 程序验收反馈：修复网格孤项 */
@media (min-width: 769px) {
  .deliverable-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}