:root {
  --ink: #1b2530;
  --ink-soft: #2c3a48;
  --amber: #c85a12;
  --amber-soft: #f7e3d2;
  --paper: #fbf7f2;
  --white: #ffffff;
  --muted: #5a6472;
  --line: #e7ddd2;
  --line-strong: #d8cabb;
  --radius: 6px;
  --shadow: 0 2px 10px rgba(27, 37, 48, 0.06);
}

/* ==========================================================================
   base
   ========================================================================== */

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

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

body.site-body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

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

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

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

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;
}

figure {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
}

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

/* ==========================================================================
   layout — 全站骨架
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
}

.site-main {
  display: block;
}

.site-footer {
  margin-top: 72px;
  background: var(--white);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 32px;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 32px 40px;
}

/* ==========================================================================
   components — 页头与导航
   ========================================================================== */

.brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  flex: 0 0 auto;
  min-height: 44px;
}

.brand-mark {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
}

.brand-tagline {
  font-size: 12px;
  line-height: 1.4;
  color: var(--muted);
}

.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

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

.nav-item a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--ink-soft);
  white-space: nowrap;
}

.nav-item a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease;
}

.nav-item a:hover::after {
  transform: scaleX(1);
}

.nav-item.is-current a {
  color: var(--ink);
  font-weight: 600;
}

.nav-item.is-current a::after {
  transform: scaleX(1);
}

.schedule-entry {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--radius);
  background: var(--amber-soft);
  color: var(--amber);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.schedule-entry:hover {
  background: #f2d6bd;
  color: var(--amber);
}

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

.mobile-drawer {
  border-top: 1px solid var(--line);
  background: var(--white);
}

.drawer-nav {
  padding: 8px 20px 20px;
}

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

.drawer-list li a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 4px;
  font-size: 16px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.drawer-list li.is-current a {
  color: var(--amber);
  font-weight: 600;
}

.drawer-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 16px;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
}

.drawer-cta:hover {
  background: var(--amber);
  color: var(--white);
}

/* ==========================================================================
   components — 通用按钮、链接、标题区
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

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

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
}

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

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  font-weight: 600;
  color: var(--amber);
}

.text-link::after {
  content: "→";
  margin-left: 6px;
  font-size: 14px;
}

.section {
  padding: 64px 0;
}

.section-inner {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-head {
  margin-bottom: 32px;
}

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

.section-lead,
.section-intro,
.section-desc {
  max-width: 760px;
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.section-foot {
  margin-top: 28px;
}

/* ==========================================================================
   components — 面包屑、页面标题区
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 20px 32px 0;
  font-size: 13px;
  color: var(--muted);
}

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

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

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

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

.page-header {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 16px 32px 0;
}

.page-title {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--ink);
}

.page-hero {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 20px 32px 0;
}

.page-hero-inner {
  max-width: 760px;
}

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

.key-point-bar {
  margin-top: 16px;
  padding: 12px 16px;
  border-left: 3px solid var(--amber);
  background: var(--amber-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.key-point {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.key-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.key-points li {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 14px;
  color: var(--ink-soft);
}

.page-points {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 760px;
}

/* ==========================================================================
   components — 图注与图片容器
   ========================================================================== */

.hero-visual,
.delivery-visual,
.process-figure,
.page-media,
.media-figure,
.section-media,
.content-media {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--amber-soft);
}

.hero-visual img,
.delivery-visual img,
.process-figure img,
.page-media img,
.media-figure img,
.section-media img,
.content-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.hero-visual figcaption,
.delivery-visual figcaption,
.process-figure figcaption,
.page-media figcaption,
.media-figure figcaption,
.section-media figcaption,
.content-media figcaption,
.media-caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
}

/* ==========================================================================
   components — 通用列表、条目、双栏对照
   ========================================================================== */

.compare-grid,
.compare-columns,
.pair-columns,
.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.compare-col,
.pair-col,
.col {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.compare-title,
.compare-col-title,
.pair-col h3,
.col-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.compare-list,
.scope-list,
.pair-list,
.col-list,
.stage-list,
.entry-list,
.requirement-list,
.reuse-list,
.schedule-list,
.partner-list,
.related-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.compare-item,
.checklist-item,
.pair-list li,
.col-list li,
.scope-list li,
.stage-list li,
.entry-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.compare-item::before,
.checklist-item::before,
.pair-list li::before,
.col-list li::before,
.scope-list li::before,
.stage-list li::before,
.entry-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}

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

/* ==========================================================================
   components — 编号清单
   ========================================================================== */

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

.checklist-item {
  counter-increment: checklist;
  padding-left: 36px;
}

.checklist-item::before {
  content: counter(checklist, decimal-leading-zero);
  left: 0;
  top: 0;
  width: auto;
  height: auto;
  border-radius: 0;
  background: none;
  color: var(--amber);
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   components — FAQ 手风琴
   ========================================================================== */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-question {
  position: relative;
  display: block;
  padding: 18px 52px 18px 20px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--amber);
  line-height: 1;
}

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

.faq-answer {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--line);
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ==========================================================================
   components — 卡片网格（岗位、流程、复用等）
   ========================================================================== */

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

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

.role-index {
  font-size: 13px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}

.role-name {
  font-size: 18px;
  margin-bottom: 10px;
}

.role-duty {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.role-output {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.role-output-label {
  color: var(--ink);
  font-weight: 600;
  margin-right: 6px;
}

/* ==========================================================================
   components — 相关推荐
   ========================================================================== */

.related-pages,
.related-section {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 32px;
}

.related-pages h2,
.related-section h2 {
  font-size: 22px;
  margin-bottom: 20px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.related-item {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-item:hover {
  border-color: var(--amber);
  box-shadow: var(--shadow);
}

.related-item a {
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.related-item p,
.related-desc,
.related-note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ==========================================================================
   components — 页脚
   ========================================================================== */

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

.footer-brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 320px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 14px;
}

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

.footer-list li a {
  display: inline-block;
  min-height: 24px;
  font-size: 14px;
  color: var(--muted);
}

.footer-list li a:hover {
  color: var(--amber);
}

.footer-meta-text,
.footer-copyright {
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.footer-copyright {
  margin-top: 10px;
}

/* ==========================================================================
   pages — 首页
   ========================================================================== */

.home-main {
  padding-bottom: 8px;
}

.hero {
  padding: 48px 0 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

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

.hero-eyebrow {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius);
  background: var(--amber-soft);
  font-size: 13px;
  font-weight: 600;
  color: var(--amber);
  margin-bottom: 18px;
}

.hero-copy h1 {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
}

.hero-lead {
  max-width: 620px;
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

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

.hero-index {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--amber-soft);
}

.hero-index-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}

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

.hero-index-item a {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--white);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  transition: background 0.2s ease, color 0.2s ease;
}

.hero-index-item a:hover {
  background: var(--ink);
  color: var(--white);
}

.hero-index-more {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
}

.hero-visual {
  width: 100%;
  max-width: 1160px;
  margin: 40px auto 0;
  border-radius: 0;
}

.hero-visual img {
  aspect-ratio: 21 / 9;
}

/* 服务目录 */
.catalog-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.catalog-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease;
}

.catalog-row:hover {
  background: var(--white);
}

.catalog-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

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

.catalog-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.catalog-audience {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.catalog-side {
  min-width: 0;
}

.catalog-scope {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.catalog-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
}

/* 制作流程步骤条 */
.process-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
}

.process-step {
  min-width: 0;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.process-step .step-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}

.process-step .step-name {
  font-size: 18px;
  margin-bottom: 8px;
}

.process-step .step-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 交付视觉 */
.delivery-visual {
  margin-top: 28px;
}

.delivery-visual img {
  aspect-ratio: 16 / 7;
}

/* 合作沟通入口 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.contact-col {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.contact-subtitle {
  font-size: 18px;
  margin-bottom: 16px;
}

.contact-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.contact-col-entry .entry-list {
  gap: 10px;
}

.contact-col-entry .entry-list li a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  font-weight: 600;
  color: var(--amber);
}

/* ==========================================================================
   pages — 内页通用（服务与交付 / 制作流程 / 适用场景 / 创作团队 / 常见问题 / 合作咨询）
   ========================================================================== */

.inner-main {
  padding-bottom: 8px;
}

/* 服务与交付：主内容 + 右侧栏 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 32px 32px 0;
}

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

.layout-aside {
  min-width: 0;
  position: sticky;
  top: 96px;
}

.aside-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  margin-bottom: 20px;
}

.aside-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
}

.anchor-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.anchor-list a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 0 8px;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink-soft);
  transition: background 0.2s ease, color 0.2s ease;
}

.anchor-list a:hover {
  background: var(--amber-soft);
  color: var(--amber);
}

.aside-note {
  background: var(--amber-soft);
}

.aside-note p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.aside-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
}

/* 服务线分节 */
.service-block {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.service-block:last-of-type {
  border-bottom: 0;
}

.service-block h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.service-audience {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 20px;
  max-width: 700px;
}

.service-scope,
.service-deliverable {
  margin-bottom: 20px;
}

.service-scope h3,
.service-deliverable h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--ink);
}

.service-note {
  padding: 14px 16px;
  border-left: 3px solid var(--amber);
  background: var(--amber-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.direction-compare,
.prep-checklist {
  margin-top: 40px;
}

.direction-compare h2,
.prep-checklist h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.direction-compare .compare-columns {
  margin-top: 20px;
}

.prep-checklist .checklist {
  margin-top: 20px;
  max-width: 760px;
}

/* 制作流程 */
.process-steps,
.stage-detail,
.support-pair {
  width: 100%;
  max-width: 1160px;
  margin: 40px auto 0;
  padding: 0 32px;
}

.process-steps h2,
.stage-detail h2,
.support-pair h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.step-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.step-item {
  min-width: 0;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.step-item .step-num {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  margin-bottom: 10px;
}

.step-item .step-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-item .step-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.stage-block {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  margin-bottom: 20px;
}

.stage-block h3 {
  font-size: 18px;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.stage-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.stage-block > p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 14px;
  max-width: 760px;
}

.stage-list {
  margin-bottom: 14px;
  max-width: 760px;
}

.stage-review {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
}

.process-figure {
  width: 100%;
  max-width: 1160px;
  margin: 32px auto 0;
}

.process-figure img {
  aspect-ratio: 21 / 9;
}

.support-pair .pair-columns {
  margin-top: 20px;
}

/* 适用场景 */
.scene-compare .compare-col,
.channel-require .requirement-item,
.reuse-section .reuse-item {
  min-width: 0;
}

.compare-item-name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.compare-item-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

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

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

.requirement-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.requirement-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

.reuse-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

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

.reuse-item-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.reuse-item-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* 创作团队 */
.section-roles,
.section-collab,
.section-partner,
.section-related {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 40px 32px 0;
}

.section-roles .section-head,
.section-collab .section-head,
.section-partner .section-head,
.section-related .section-head {
  margin-bottom: 24px;
}

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

.collab-step {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.collab-step-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}

.collab-step-title {
  font-size: 17px;
  margin-bottom: 10px;
}

.collab-step p:last-child {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

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

.partner-item-title {
  font-size: 16px;
  margin-bottom: 10px;
}

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

/* 常见问题 */
.faq-section {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 40px 32px 0;
}

.faq-section .faq-list {
  margin-top: 20px;
}

.page-hero .container,
.faq-section .container,
.related-section .container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

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

.page-hero-media {
  margin-top: 24px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--amber-soft);
}

.page-hero-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 21 / 9;
}

.page-hero-media figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
}

.page-hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.point-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 合作咨询 */
.contact-flow,
.checklist-section,
.confirm-section,
.schedule-section {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 40px 32px 0;
}

.contact-flow h2,
.checklist-section h2,
.confirm-section h2,
.schedule-section h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.flow-step {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.flow-step-no {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  margin-bottom: 10px;
}

.flow-step-name {
  font-size: 17px;
  margin-bottom: 10px;
}

.flow-step p:last-child {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.checklist-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.checklist-group {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.checklist-group-title {
  font-size: 16px;
  margin-bottom: 16px;
}

.confirm-section .two-col,
.schedule-section .two-col {
  margin-top: 24px;
}

.col-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.schedule-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.schedule-list li {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ==========================================================================
   pages — 404
   ========================================================================== */

.error-main {
  display: block;
}

.error-panel {
  padding: 72px 0 40px;
}

.error-inner {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  margin-bottom: 16px;
}

.error-inner h1 {
  font-size: 32px;
  margin-bottom: 16px;
}

.error-lead {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 28px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.error-links li a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 15px;
  color: var(--ink);
}

.error-links li a:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.error-note {
  font-size: 14px;
  color: var(--muted);
}

.error-note a {
  color: var(--amber);
  font-weight: 600;
}

/* ==========================================================================
   responsive — 1080px
   ========================================================================== */

@media (max-width: 1080px) {
  .nav-list {
    gap: 0;
  }

  .nav-item a {
    padding: 0 9px;
    font-size: 14px;
  }

  .nav-item a::after {
    left: 9px;
    right: 9px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 28px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 28px;
  }

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

  .footer-inner {
    grid-template-columns: 1.4fr 1fr 1fr;
    row-gap: 28px;
  }
}

/* ==========================================================================
   responsive — 760px
   ========================================================================== */

@media (max-width: 760px) {
  .header-inner {
    height: 60px;
    padding: 0 20px;
    gap: 12px;
  }

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

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

  .site-nav {
    flex: 0 0 auto;
    position: relative;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 12px);
    padding: 8px 20px 20px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

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

  .nav-item a {
    height: 48px;
    padding: 0 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line);
  }

  .nav-item a::after {
    display: none;
  }

  .nav-item.is-current a {
    color: var(--amber);
  }

  .schedule-entry {
    display: none;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .section {
    padding: 44px 0;
  }

  .section-inner,
  .breadcrumb,
  .page-header,
  .page-hero,
  .page-layout,
  .process-steps,
  .stage-detail,
  .support-pair,
  .section-roles,
  .section-collab,
  .section-partner,
  .section-related,
  .faq-section,
  .contact-flow,
  .checklist-section,
  .confirm-section,
  .schedule-section,
  .related-pages,
  .related-section,
  .hero-inner,
  .error-inner,
  .page-hero .container,
  .faq-section .container,
  .related-section .container {
    padding-left: 20px;
    padding-right: 20px;
  }

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

  .section-head h2,
  .direction-compare h2,
  .prep-checklist h2,
  .process-steps h2,
  .stage-detail h2,
  .support-pair h2,
  .contact-flow h2,
  .checklist-section h2,
  .confirm-section h2,
  .schedule-section h2 {
    font-size: 21px;
  }

  .hero {
    padding-top: 32px;
  }

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

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

  .hero-visual {
    margin-top: 24px;
  }

  .hero-visual img,
  .process-figure img,
  .page-hero-media img {
    aspect-ratio: 16 / 10;
  }

  .catalog-row {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px 16px;
    padding: 22px 0;
  }

  .catalog-side {
    grid-column: 2;
  }

  .catalog-num {
    font-size: 20px;
  }

  .process-track,
  .step-track,
  .collab-steps,
  .flow-steps,
  .checklist-groups,
  .schedule-list,
  .compare-grid,
  .compare-columns,
  .pair-columns,
  .two-col,
  .contact-grid,
  .role-grid,
  .requirement-list,
  .reuse-body,
  .reuse-list,
  .partner-list,
  .page-hero-points {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .layout-aside {
    position: static;
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 36px 20px 32px;
  }

  .footer-brand-desc {
    max-width: none;
  }

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

  .error-inner h1 {
    font-size: 24px;
  }
}

/* ==========================================================================
   responsive — 480px
   ========================================================================== */

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .key-points {
    flex-direction: column;
  }

  .key-points li {
    width: 100%;
  }

  .compare-col,
  .pair-col,
  .col,
  .contact-col,
  .role-card,
  .collab-step,
  .flow-step,
  .checklist-group,
  .requirement-item,
  .reuse-item,
  .partner-item,
  .stage-block,
  .process-step,
  .step-item,
  .related-item {
    padding: 18px;
  }

  .faq-question {
    padding: 16px 46px 16px 16px;
  }

  .faq-answer {
    padding: 14px 16px 18px;
  }

  .error-links {
    flex-direction: column;
  }

  .error-links li a {
    justify-content: center;
  }
}

/* ==========================================================================
   motion — 不影响初始可见性的增强
   ========================================================================== */

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

  .nav-item a::after,
  .btn,
  .catalog-row,
  .related-item,
  .anchor-list a,
  .hero-index-item a {
    transition: none;
  }
}