/* ============================================================
   BASE — 全局基础样式与设计变量
   ============================================================ */
:root {
  --canvas: #f2f0ec;
  --ink: #171a1c;
  --ink-secondary: #4c4f52;
  --accent: #b85c1c;
  --divider: #d8d2c8;
  --card-bg: #ffffff;
  --container: 1200px;
  --radius: 8px;
  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --mono: 'SF Mono', 'Cascadia Code', Consolas, 'Roboto Mono', monospace;
  --header-h: 72px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-stack);
  background-color: var(--canvas);
  color: var(--ink);
  line-height: 1.8;
  font-size: 16px;
}

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

a {
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

h1,
h2,
h3,
h4 {
  line-height: 1.4;
  font-weight: 600;
  color: var(--ink);
}

p {
  margin-bottom: 0.5em;
}

ul,
ol {
  list-style: none;
}

figure {
  margin: 0;
}

/* ============================================================
   LAYOUT — 全站容器与页面骨架
   ============================================================ */
.site-main {
  min-height: 60vh;
}

.site-main.inner-main {
  padding-bottom: 60px;
}

/* 全站统一内容宽度 */
.header-inner,
.hero-inner,
.service-scope,
.catalog-preview > .section-head,
.catalog-preview > .catalog-grid,
.catalog-preview > .catalog-more,
.process-preview,
.today-notes,
.cooperate-entry,
.footer-inner,
.page-header,
.breadcrumb,
.brand-intro,
.brand-image,
.service-boundary,
.principle-list,
.next-step,
.process-stages,
.prep-checklist,
.process-extras,
.page-layout,
.coop-banner {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 首页首屏与各模块不重复加外层容器宽度，但保留各自内边距 */
.hero-intro,
.service-scope,
.catalog-preview,
.process-preview,
.today-notes,
.cooperate-entry {
  width: 100%;
}

/* ============================================================
   COMPONENTS — 页头 / 导航
   ============================================================ */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--divider);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--ink);
  border-radius: 2px;
  margin: 0 auto;
}

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

.nav-list li a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-secondary);
  border-radius: 4px;
  white-space: nowrap;
}

.nav-list li a:hover {
  color: var(--accent);
}

.nav-list li a.is-current {
  color: var(--accent);
  font-weight: 600;
  background-color: rgba(184, 92, 28, 0.06);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  background-color: var(--accent);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  white-space: nowrap;
  flex-shrink: 0;
  transition: background-color 0.2s ease;
}

.header-cta:hover {
  background-color: #a04f16;
  color: #ffffff;
}

/* ============================================================
   COMPONENTS — 页脚
   ============================================================ */
.site-footer {
  background-color: #eae7e1;
  border-top: 1px solid var(--divider);
  padding: 48px 0 28px;
}

.footer-inner {
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
  margin-bottom: 24px;
}

.footer-links a {
  font-size: 15px;
  color: var(--ink-secondary);
  padding: 4px 0;
}

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

.footer-about {
  max-width: 640px;
  margin: 0 auto 18px;
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.footer-copy {
  font-size: 13px;
  color: var(--ink-secondary);
}

/* ============================================================
   COMPONENTS — 面包屑与页面标题区
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  padding-bottom: 4px;
  font-size: 14px;
  color: var(--ink-secondary);
}

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

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

.breadcrumb-sep {
  color: var(--ink-secondary);
  opacity: 0.6;
}

.breadcrumb-current {
  color: var(--ink);
  font-weight: 500;
}

.page-header {
  padding-top: 28px;
  padding-bottom: 36px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.page-description {
  font-size: 16px;
  color: var(--ink-secondary);
  line-height: 1.8;
  max-width: 720px;
}

/* ============================================================
   COMPONENTS — 通用按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #a04f16;
  color: #ffffff;
}

.btn-secondary {
  background-color: transparent;
  color: var(--ink);
  border: 1px solid var(--divider);
}

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

.btn-inverse {
  background-color: #ffffff;
  color: var(--ink);
}

.btn-inverse:hover {
  background-color: var(--divider);
  color: var(--ink);
}

/* ============================================================
   COMPONENTS — 通用区块标题
   ============================================================ */
.section-head {
  text-align: left;
  margin-bottom: 32px;
}

.section-head h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.section-head p {
  font-size: 15px;
  color: var(--ink-secondary);
  max-width: 640px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.section-lead {
  font-size: 15px;
  color: var(--ink-secondary);
  margin-bottom: 24px;
  max-width: 640px;
}

/* ============================================================
   COMPONENTS — 档案编号标签
   ============================================================ */
.archive-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  padding: 2px 8px;
  border: 1px solid rgba(184, 92, 28, 0.3);
  border-radius: 4px;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

/* ============================================================
   COMPONENTS — 相关内容导航
   ============================================================ */
.related-links {
  max-width: var(--container);
  margin: 40px auto 0;
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  border-top: 1px solid var(--divider);
  font-size: 14px;
}

.related-links-label {
  color: var(--ink-secondary);
  font-weight: 500;
}

.related-links-item {
  color: var(--accent);
  font-size: 14px;
}

.related-links-item:hover {
  text-decoration: underline;
}

/* ============================================================
   PAGES — 首页
   ============================================================ */
/* 首屏 */
.hero-intro {
  padding: 56px 0 48px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-copy h1 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 16px;
  color: var(--ink-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.hero-note {
  font-size: 13px;
  color: var(--ink-secondary);
  border-left: 2px solid var(--divider);
  padding-left: 12px;
  max-width: 380px;
}

.hero-figure {
  position: relative;
}

.hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--divider);
}

.hero-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-secondary);
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

/* 服务范围 */
.service-scope {
  padding: 56px 0;
  background-color: #eae7e1;
}

.service-scope > .section-head {
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.scope-item {
  background-color: var(--card-bg);
  padding: 28px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--divider);
}

.scope-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.scope-item p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.scope-item .scope-audience {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--divider);
  font-size: 14px;
  color: var(--ink);
}

/* 系列目录预览 */
.catalog-preview {
  padding: 56px 0;
}

.catalog-preview > .section-head {
  padding-left: 24px;
  padding-right: 24px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.catalog-card {
  display: block;
  background-color: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--divider);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.catalog-card:hover {
  box-shadow: 0 4px 16px rgba(23, 26, 28, 0.08);
  transform: translateY(-2px);
}

.catalog-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid var(--divider);
}

.catalog-index {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  padding: 10px 16px 2px;
}

.catalog-card h3 {
  font-size: 17px;
  font-weight: 600;
  padding: 0 16px;
  margin-bottom: 6px;
}

.catalog-card p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.6;
  padding: 0 16px 16px;
}

.catalog-more {
  text-align: center;
  margin-top: 8px;
  font-size: 15px;
}

.catalog-more a {
  color: var(--accent);
  font-weight: 500;
}

.catalog-more a:hover {
  text-decoration: underline;
}

/* 制作过程简览 */
.process-preview {
  padding: 56px 0;
  background-color: #eae7e1;
}

.process-preview > .section-head {
  padding-left: 24px;
  padding-right: 24px;
}

.process-preview .process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.step-item {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--divider);
  padding: 24px 20px;
  position: relative;
}

.step-num {
  display: inline-block;
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
  opacity: 0.8;
}

.step-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.6;
}

.process-link {
  text-align: center;
  margin-top: 24px;
  font-size: 15px;
}

.process-link a {
  color: var(--accent);
  font-weight: 500;
}

.process-link a:hover {
  text-decoration: underline;
}

/* 今日黑料笔记摘要 */
.today-notes {
  padding: 56px 0;
}

.today-notes > .section-head {
  padding-left: 24px;
  padding-right: 24px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.note-card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--divider);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.note-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-bottom: 1px solid var(--divider);
}

.note-tag {
  display: inline-block;
  align-self: flex-start;
  margin: 14px 16px 6px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
  padding: 2px 10px;
  border: 1px solid rgba(184, 92, 28, 0.25);
  border-radius: 4px;
  font-family: var(--mono);
}

.note-card h3 {
  font-size: 16px;
  font-weight: 600;
  padding: 0 16px;
  margin-bottom: 6px;
}

.note-card p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.6;
  padding: 0 16px;
  flex-grow: 1;
}

.note-card a {
  display: inline-block;
  padding: 8px 16px 16px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

.note-card a:hover {
  text-decoration: underline;
}

.notes-more {
  text-align: center;
  margin-top: 24px;
  font-size: 15px;
}

.notes-more a {
  color: var(--accent);
  font-weight: 500;
}

.notes-more a:hover {
  text-decoration: underline;
}

/* 合作准备横幅 */
.cooperate-entry {
  padding: 0 0 56px;
}

.cooperate-banner {
  max-width: calc(var(--container) - 48px);
  margin: 0 auto;
  background-color: var(--ink);
  border-radius: var(--radius);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cooperate-copy h2 {
  color: #ffffff;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}

.cooperate-copy p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 0;
}

.cooperate-copy .btn-inverse {
  margin-top: 20px;
}

/* ============================================================
   PAGES — 品牌起点 (origin)
   ============================================================ */
.brand-intro {
  padding: 8px 0 40px;
}

.brand-intro p {
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 16px;
  max-width: 860px;
  color: var(--ink);
}

.brand-image {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 40px;
  align-items: center;
  padding: 48px 24px;
  background-color: #eae7e1;
  max-width: none;
  width: 100%;
}

.brand-image-text h2 {
  margin-bottom: 12px;
}

.brand-image-text p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.brand-image-media {
  min-width: 0;
}

.brand-image-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--divider);
}

.brand-image-media figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-secondary);
  font-family: var(--mono);
}

.service-boundary {
  padding: 48px 0;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.boundary-item {
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 24px;
}

.boundary-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.boundary-item p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.principle-list {
  padding: 48px 0;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.principle-item {
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.principle-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
}

.principle-item p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.principle-item p a {
  color: var(--accent);
  font-weight: 500;
}

.next-step {
  padding: 32px 0 0;
}

.next-step h2 {
  margin-bottom: 12px;
}

.next-step p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.8;
}

.next-step p a {
  color: var(--accent);
  font-weight: 500;
  margin-right: 16px;
}

.next-step p a:hover {
  text-decoration: underline;
}

/* ============================================================
   PAGES — 系列目录 (catalog)
   ============================================================ */
.catalog-filter {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 16px;
}

.filter-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

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

.filter-links a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 4px;
  color: var(--ink-secondary);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.filter-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  padding-top: 8px;
  padding-bottom: 40px;
  align-items: start;
}

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

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

.catalog-list-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}

.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.catalog-list .catalog-card {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  overflow: hidden;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
}

.catalog-card-media {
  position: relative;
  overflow: hidden;
}

.catalog-figure {
  height: 100%;
}

.catalog-figure img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
}

.catalog-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.catalog-card-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
}

.catalog-meta {
  font-size: 14px;
  color: var(--ink-secondary);
  margin-bottom: 10px;
}

.catalog-card-body p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
}

.catalog-range {
  font-size: 14px;
  color: var(--ink);
  border-top: 1px solid var(--divider);
  padding-top: 10px;
  margin-top: 8px;
}

.catalog-aside {
  background-color: #eae7e1;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--divider);
}

.aside-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.aside-lead {
  font-size: 14px;
  color: var(--ink-secondary);
  margin-bottom: 16px;
}

.aside-list {
  counter-reset: aside-counter;
  padding-left: 0;
}

.aside-list li {
  counter-increment: aside-counter;
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.6;
}

.aside-list li::before {
  content: counter(aside-counter, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  position: absolute;
  left: 0;
  top: 2px;
}

.aside-note {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--divider);
  font-size: 14px;
  color: var(--ink-secondary);
}

.aside-note a {
  color: var(--accent);
  font-weight: 500;
}

/* ============================================================
   PAGES — 制作过程 (process)
   ============================================================ */
.process-stages {
  padding-bottom: 48px;
}

.process-stages > .section-title {
  margin-bottom: 8px;
}

.process-stages > .section-lead {
  margin-bottom: 36px;
}

.stage-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}

.stage-odd .stage-media {
  order: 1;
}

.stage-odd .stage-content {
  order: 2;
}

.stage-even .stage-media {
  order: 2;
}

.stage-even .stage-content {
  order: 1;
}

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

.stage-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--divider);
}

.stage-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-secondary);
  font-family: var(--mono);
}

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

.stage-number {
  display: inline-block;
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
  opacity: 0.75;
}

.stage-content h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.stage-content p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.8;
  margin-bottom: 10px;
}

.stage-link {
  display: inline-block;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

.stage-link:hover {
  text-decoration: underline;
}

/* 需求准备清单 */
.prep-checklist {
  padding: 48px 0;
  background-color: #eae7e1;
}

.prep-heading h2 {
  margin-bottom: 6px;
}

.prep-heading p {
  font-size: 15px;
  color: var(--ink-secondary);
  margin-bottom: 20px;
}

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

.checklist-item {
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.checklist-index {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 6px;
}

.checklist-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.checklist-item p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.6;
}

/* 相关延伸 */
.process-extras {
  padding: 24px 0 0;
}

.extra-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.extra-card {
  display: block;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.2s ease;
}

.extra-card:hover {
  border-color: var(--accent);
}

.extra-label {
  display: block;
  font-size: 13px;
  color: var(--accent);
  font-family: var(--mono);
  margin-bottom: 4px;
}

.extra-card strong {
  display: block;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 4px;
}

.extra-card span:last-child {
  font-size: 14px;
  color: var(--ink-secondary);
}

/* ============================================================
   PAGES — 今日黑料 (updates)
   ============================================================ */
.note-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}

.note-item {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.note-media img {
  width: 100%;
  height: 100%;
  min-height: 170px;
  object-fit: cover;
}

.note-content {
  padding: 20px 24px;
  min-width: 0;
}

.note-content h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.5;
}

.note-scene {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.note-tags span {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  background-color: rgba(184, 92, 28, 0.06);
  padding: 2px 10px;
  border-radius: 4px;
  font-family: var(--mono);
}

.note-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--divider);
  padding-top: 10px;
}

.note-meta a {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

.note-meta a:hover {
  text-decoration: underline;
}

.archive-aside {
  background-color: #eae7e1;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--divider);
}

.archive-aside h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.aside-intro {
  font-size: 14px;
  color: var(--ink-secondary);
  margin-bottom: 16px;
}

.aside-tags {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 20px;
}

.aside-tags li a {
  display: block;
  padding: 6px 10px;
  font-size: 14px;
  color: var(--ink-secondary);
  border-radius: 4px;
  border-left: 2px solid transparent;
}

.aside-tags li a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
  background-color: rgba(184, 92, 28, 0.04);
}

.aside-links {
  border-top: 1px solid var(--divider);
  padding-top: 16px;
}

.aside-links h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.aside-links p {
  font-size: 14px;
  color: var(--ink-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.aside-links p a {
  color: var(--accent);
  font-weight: 500;
}

/* ============================================================
   PAGES — 合作准备 (cooperate)
   ============================================================ */
.layout-shell.coop-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
}

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

.content-aside {
  min-width: 0;
}

.coop-process {
  margin-bottom: 32px;
}

.coop-process h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
}

.content-media-inline img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--divider);
  margin-bottom: 8px;
}

.content-media-inline figcaption {
  font-size: 13px;
  color: var(--ink-secondary);
  font-family: var(--mono);
  margin-bottom: 16px;
}

.coop-process .process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  max-width: none;
}

.process-step {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--divider);
}

.process-step:first-child {
  padding-top: 0;
}

.process-step:last-child {
  border-bottom: none;
}

.step-number {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.8;
  line-height: 1.2;
}

.step-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-body p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.faq-list {
  margin-bottom: 40px;
}

.faq-list h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
}

.faq-list details {
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
}

.faq-list summary {
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 24px;
  color: var(--ink);
}

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

.faq-list summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 0;
  font-size: 22px;
  color: var(--accent);
  font-weight: 400;
  line-height: 1;
}

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

.faq-list details div {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--divider);
}

.faq-list details div p {
  font-size: 15px;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.coop-aside {
  background-color: #eae7e1;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--divider);
}

.aside-block {
  margin-bottom: 28px;
}

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

.aside-block h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--divider);
}

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

.duty-list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.duty-list li span {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 14px;
  flex-shrink: 0;
}

.coop-banner {
  padding: 40px 0 0;
}

.banner-content {
  background-color: var(--ink);
  border-radius: var(--radius);
  padding: 32px 40px;
  text-align: center;
}

.banner-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 8px;
}

.banner-content p a {
  display: inline-block;
  margin: 8px 8px 0;
  color: var(--accent);
  font-weight: 600;
  background-color: #ffffff;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-size: 14px;
}

.banner-content p a:hover {
  background-color: var(--divider);
}

/* ============================================================
   PAGES — 404
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 40px 24px;
}

.error-panel {
  text-align: center;
  max-width: 520px;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 48px 40px;
}

.error-code {
  font-family: var(--mono);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}

.error-panel h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--ink-secondary);
  margin-bottom: 24px;
}

.error-home-link {
  display: inline-block;
  background-color: var(--accent);
  color: #ffffff;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
}

.error-home-link:hover {
  background-color: #a04f16;
  color: #ffffff;
}

/* ============================================================
   RESPONSIVE — 响应式断点
   ============================================================ */
@media (max-width: 1024px) {
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .notes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scope-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .scope-item {
    padding: 20px 16px;
  }

  .process-preview .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-inner {
    gap: 32px;
  }

  .hero-copy h1 {
    font-size: 30px;
  }

  .cooperate-banner {
    padding: 32px;
  }
}

@media (max-width: 900px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .layout-aside {
    order: 2;
  }

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

  .coop-aside {
    order: 2;
  }

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

  .brand-image-media img {
    height: 240px;
  }

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

  .catalog-card-media .catalog-figure img {
    min-height: 200px;
    max-height: 240px;
  }

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

  .note-media img {
    min-height: 180px;
    max-height: 220px;
  }

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

  .stage-odd .stage-media,
  .stage-even .stage-media {
    order: 1;
  }

  .stage-odd .stage-content,
  .stage-even .stage-content {
    order: 2;
  }

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

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

@media (max-width: 760px) {
  .site-header {
    position: sticky;
  }

  .header-inner {
    height: 64px;
    gap: 12px;
  }

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

  .site-nav {
    order: 3;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 1px solid var(--divider);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
  }

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

  .nav-list li a {
    display: block;
    padding: 12px 8px;
    font-size: 16px;
    border-bottom: 1px solid rgba(216, 210, 200, 0.4);
  }

  .nav-list li:last-child a {
    border-bottom: none;
  }

  .header-cta {
    display: none;
  }

  .hero-intro {
    padding: 32px 0 24px;
  }

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

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

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

  .hero-desc {
    font-size: 15px;
  }

  .hero-figure img {
    height: 220px;
  }

  .service-scope {
    padding: 40px 0;
  }

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

  .catalog-preview,
  .process-preview,
  .today-notes {
    padding: 40px 0;
  }

  .catalog-grid,
  .notes-grid,
  .process-preview .process-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .catalog-card img {
    height: 180px;
  }

  .note-card img {
    height: 160px;
  }

  .cooperate-entry {
    padding-bottom: 40px;
  }

  .cooperate-banner {
    flex-direction: column;
    text-align: center;
    padding: 28px 24px;
    max-width: calc(100% - 32px);
  }

  .cooperate-copy .btn-inverse {
    margin-top: 16px;
  }

  .page-header {
    padding-top: 20px;
    padding-bottom: 24px;
  }

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

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

  .section-title {
    font-size: 20px;
  }

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

  .brand-image {
    padding: 32px 16px;
  }

  .filter-links {
    gap: 6px;
  }

  .filter-links a {
    padding: 6px 12px;
    font-size: 13px;
  }

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

  .process-step {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
  }

  .step-number {
    font-size: 22px;
  }

  .banner-content {
    padding: 24px;
  }

  .footer-links {
    gap: 4px 16px;
  }

  .footer-links a {
    font-size: 14px;
  }

  .footer-about {
    font-size: 13px;
    padding: 0 16px;
  }

  .related-links {
    padding: 16px;
    gap: 6px 12px;
  }

  .related-links-label {
    width: 100%;
  }

  .error-panel {
    padding: 32px 24px;
  }

  .error-code {
    font-size: 36px;
  }
}

@media (max-width: 480px) {
  .header-inner,
  .hero-inner,
  .service-scope > .section-head,
  .catalog-preview > .section-head,
  .process-preview > .section-head,
  .today-notes > .section-head,
  .catalog-preview > .catalog-grid,
  .catalog-preview > .catalog-more,
  .process-preview > .process-steps,
  .today-notes > .notes-grid,
  .footer-inner,
  .page-header,
  .breadcrumb,
  .brand-intro,
  .service-boundary,
  .principle-list,
  .next-step,
  .process-stages,
  .prep-checklist,
  .process-extras,
  .page-layout,
  .coop-banner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-copy h1 {
    font-size: 24px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .catalog-card img {
    height: 160px;
  }

  .note-card img {
    height: 140px;
  }

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

  .catalog-card-body {
    padding: 16px;
  }

  .note-content {
    padding: 16px;
  }

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

  .note-media img {
    min-height: 150px;
  }

  .stage-figure img {
    height: 180px;
  }

  .cooperate-banner {
    max-width: 100%;
    border-radius: 0;
  }

  .process-step {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
  }

  .step-number {
    font-size: 20px;
  }

  .step-body h3 {
    font-size: 16px;
  }

  .step-body p {
    font-size: 14px;
  }

  .coop-banner {
    padding-top: 24px;
  }

  .banner-content {
    padding: 20px 16px;
    border-radius: var(--radius);
  }

  .footer-links {
    gap: 2px 12px;
  }
}