/* ============================================================
   sz-benow.cn 全站样式
   视觉方向：双色信息风（深青 + 橙红）
   ============================================================ */

/* ------------------------------------------------------------
   1. Base — 变量、重置、基础元素
   ------------------------------------------------------------ */
:root {
  --color-primary: #0f766e;
  --color-primary-dark: #115e59;
  --color-accent: #ea580c;
  --color-accent-light: #fff7ed;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --reading-width: 760px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --space-section: 64px;
  --space-block: 32px;
  --header-height: 68px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  color: var(--color-text);
  font-weight: 600;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 16px;
}

strong {
  font-weight: 600;
}

/* ------------------------------------------------------------
   2. Layout — 全站骨架容器
   ------------------------------------------------------------ */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.brand-tagline {
  font-size: 13px;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.site-nav {
  flex-shrink: 0;
}

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

.nav-list li {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-border-light);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 600;
  background-color: rgba(15, 118, 110, 0.08);
}

.header-extended-nav {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border-light);
}

.extended-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin-right: 4px;
  white-space: nowrap;
}

.header-extended-nav a {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.header-extended-nav a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
}

.footer-columns {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-border-light);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* 内页骨架 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 8px;
  font-size: 14px;
}

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

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

.breadcrumb-sep {
  color: var(--color-border);
  font-size: 12px;
}

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

/* 页面标题区 */
.page-header {
  padding: 16px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.page-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: var(--reading-width);
  line-height: 1.7;
  margin: 0;
}

/* 通用区块标题 */
.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.section-intro,
.section-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  max-width: var(--reading-width);
}

/* ------------------------------------------------------------
   3. Components — 通用组件
   ------------------------------------------------------------ */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease,
    color 0.2s ease, transform 0.15s ease;
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: rgba(15, 118, 110, 0.06);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* 链接更多 */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 8px 0;
  min-height: 44px;
}

.link-more:hover {
  color: var(--color-primary-dark);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 8px 0;
  min-height: 44px;
}

.link-arrow:hover {
  color: var(--color-primary-dark);
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: rgba(15, 118, 110, 0.08);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(15, 118, 110, 0.15);
}

/* 图片容器与 figure */
.hero-figure,
.featured-image,
.service-entry-media,
.media-figure,
.content-figure,
.pre-contact-figure {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-border-light);
}

.hero-figure img,
.featured-image img,
.service-entry-media img,
.media-figure img,
.content-figure img,
.pre-contact-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

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

.featured-image {
  aspect-ratio: 16 / 10;
}

.featured-image img {
  aspect-ratio: 16 / 10;
}

.service-entry-media {
  aspect-ratio: 16 / 10;
  flex-shrink: 0;
}

.service-entry-media img {
  aspect-ratio: 16 / 10;
}

.media-figure {
  aspect-ratio: 16 / 10;
}

.media-figure img {
  aspect-ratio: 16 / 10;
}

.content-figure {
  aspect-ratio: 16 / 9;
  max-width: var(--reading-width);
  margin: 24px auto 0;
}

.content-figure img {
  aspect-ratio: 16 / 9;
}

.pre-contact-figure {
  aspect-ratio: 4 / 3;
}

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

/* FAQ 折叠面板 */
details.qa-item,
details.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  margin-bottom: 12px;
  overflow: hidden;
}

details.qa-item summary,
details.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: background-color 0.2s ease;
  min-height: 48px;
}

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

details.qa-item summary::after,
details.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

details.qa-item[open] summary,
details.faq-item[open] summary {
  background-color: var(--color-border-light);
}

details.qa-item[open] summary::after,
details.faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--color-primary);
}

details.qa-item p,
details.faq-item p,
.qa-answer p {
  padding: 0 20px 16px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.qa-answer p {
  padding: 0 20px 16px;
}

.qa-answer a {
  color: var(--color-primary);
  font-weight: 500;
}

/* 相关链接 */
.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  margin-top: 32px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-primary);
  padding: 6px 12px;
  background-color: rgba(15, 118, 110, 0.06);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.related-links-item:hover {
  background-color: rgba(15, 118, 110, 0.12);
}

/* ------------------------------------------------------------
   4. Pages — 首页
   ------------------------------------------------------------ */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* 首屏 */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  padding: 48px 0 64px;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-copy h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

.hero-lead {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 560px;
  margin: 0;
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.hero-visual {
  position: relative;
}

/* 合作方向面板 */
.cooperation-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.panel-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  position: relative;
}

.panel-title::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--color-accent);
}

.cooperation-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cooperation-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cooperation-item:last-child {
  border-bottom: none;
}

.direction-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.direction-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.cooperation-item a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  margin-top: 4px;
  align-self: flex-start;
}

.cooperation-footer {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.cooperation-footer a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  min-height: 44px;
}

/* 日程轨道 */
.schedule-section {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
}

.section-header {
  margin-bottom: 32px;
  max-width: var(--reading-width);
}

.section-header h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

.section-header p {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin: 0;
}

.schedule-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
  margin-bottom: 24px;
}

.stage-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.stage-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.stage-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.stage-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.stage-fields {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stage-fields div {
  display: flex;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
}

.stage-fields dt {
  color: var(--color-text-secondary);
  flex-shrink: 0;
  min-width: 64px;
  font-weight: 500;
}

.stage-fields dd {
  color: var(--color-text);
}

/* 状态标记 */
.status-scheduled,
.status-pending,
.status-running,
.status-open {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.status-scheduled {
  color: var(--color-primary);
  background-color: rgba(15, 118, 110, 0.08);
}

.status-pending {
  color: var(--color-text-secondary);
  background-color: var(--color-border-light);
}

.status-running {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
}

.status-open {
  color: var(--color-primary);
  background-color: rgba(15, 118, 110, 0.1);
  border: 1px solid rgba(15, 118, 110, 0.2);
}

/* 主推服务专题 */
.featured-service-section {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.featured-service-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
}

.featured-service-content > p {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

.service-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.detail-block {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.detail-block h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.detail-block ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-block ul li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding-left: 12px;
  position: relative;
}

.detail-block ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* 任务索引 */
.task-index-section {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
}

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

.task-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.task-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.task-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.task-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex: 1;
  margin: 0;
}

.task-card a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  align-self: flex-start;
  margin-top: 8px;
}

.task-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-top: 4px;
}

/* 更新与专题双栏 */
.updates-and-topic {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.updates-column h2,
.topic-column h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.update-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 16px;
}

.update-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.update-date {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
}

.update-list li p {
  font-size: 15px;
  color: var(--color-text);
  margin: 0;
  line-height: 1.6;
}

.topic-column > p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* 问答简版 */
.qa-preview {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
  max-width: var(--reading-width);
}

.qa-preview h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
}

/* ------------------------------------------------------------
   5. Pages — 服务能力
   ------------------------------------------------------------ */

/* 服务总览 */
.service-overview {
  margin-bottom: 64px;
}

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

.overview-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.overview-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.overview-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.overview-item strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.overview-item span:last-child {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* 服务条目 */
.service-detail-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
  margin-bottom: 64px;
}

.service-entry {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.2s ease;
}

.service-entry:hover {
  border-color: var(--color-primary);
}

.service-entry-body h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border-light);
}

.service-block {
  margin-bottom: 16px;
}

.service-block h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.service-block p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* 交叉链接 */
.cross-links {
  margin-bottom: 48px;
}

.cross-links h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
}

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

.cross-link-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cross-link-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.cross-link-card strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.cross-link-card span {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ------------------------------------------------------------
   6. Pages — 项目参考
   ------------------------------------------------------------ */

/* 行业分类索引 */
.industry-index {
  margin-bottom: 48px;
}

.industry-tabs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.industry-tab {
  display: inline-block;
  padding: 8px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.industry-tab:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

/* 项目类型列表 */
.project-type-list {
  margin-bottom: 48px;
}

.project-group {
  margin-bottom: 48px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.group-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-text);
}

.project-item {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border-light);
}

.project-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.project-item-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.project-item-head h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.project-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
}

.project-item-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-field {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  font-size: 15px;
  line-height: 1.6;
}

.field-label {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.project-field p {
  color: var(--color-text);
  margin: 0;
}

/* 项目整理成果示例 */
.project-media {
  margin-bottom: 48px;
}

.project-media .media-figure {
  max-width: var(--reading-width);
}

.project-media figcaption,
.media-figure figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 12px 4px 0;
  text-align: center;
}

/* 边界说明 */
.boundary-note {
  background-color: var(--color-accent-light);
  border: 1px solid rgba(234, 88, 12, 0.2);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 48px;
}

.boundary-note h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.boundary-note p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  margin: 0;
}

.boundary-note a {
  color: var(--color-primary);
  font-weight: 500;
}

/* 相关链接 */
.related-links-section {
  margin-bottom: 48px;
}

.related-links-section h2,
.related-links h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
}

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

.related-link {
  display: block;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-link:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* ------------------------------------------------------------
   7. Pages — 合作流程
   ------------------------------------------------------------ */
.page-container {
  max-width: var(--container-width);
}

/* 时间轴轨道 */
.timeline-section {
  margin-bottom: 64px;
}

.timeline-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}

.timeline-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.timeline-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.phase-marker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border-light);
}

.phase-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.phase-marker h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.phase-fields {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-row {
  display: flex;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
}

.field-row dt {
  color: var(--color-text-secondary);
  flex-shrink: 0;
  min-width: 64px;
  font-weight: 500;
}

.field-row dd {
  color: var(--color-text);
}

/* 配合事项 */
.cooperation-detail-section {
  margin-bottom: 64px;
}

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

.cooperation-item {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  align-items: start;
}

.cooperation-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.cooperation-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

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

.check-list li {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  padding-left: 20px;
  position: relative;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
}

/* 相关入口 */
.related-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
  margin-top: 48px;
}

.related-links h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

.related-link-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-link-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.related-link-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.related-link-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ------------------------------------------------------------
   8. Pages — 内容规范
   ------------------------------------------------------------ */

/* 公告区 */
.notice-section {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 48px;
  border-left: 4px solid var(--color-accent);
}

.notice-section h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

.notice-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.notice-content p:last-child {
  margin-bottom: 0;
}

/* 指南区 */
.guideline-section {
  margin-bottom: 64px;
}

.guide-intro {
  margin-bottom: 24px;
}

.guide-intro p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: var(--reading-width);
}

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

.check-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.2s ease;
}

.check-item:hover {
  border-color: var(--color-primary);
}

.check-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.check-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.check-item p:last-child {
  margin-bottom: 0;
}

.check-item p strong {
  color: var(--color-text);
  font-weight: 600;
}

/* 讨论区 */
.discussion-section {
  margin-bottom: 64px;
}

.faq-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: var(--reading-width);
}

/* 引用规则 */
.citation-section {
  margin-bottom: 64px;
}

.citation-list {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.citation-list ol {
  list-style: decimal;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.citation-list ol li {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  padding-left: 8px;
}

/* 相关卡片 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ------------------------------------------------------------
   9. Pages — 合作问答
   ------------------------------------------------------------ */

/* 问答分组 */
.qa-section {
  margin-bottom: 48px;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.section-tag-rule {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  border: 1px solid rgba(234, 88, 12, 0.2);
}

.section-tag-qa {
  color: var(--color-primary);
  background-color: rgba(15, 118, 110, 0.08);
  border: 1px solid rgba(15, 118, 110, 0.15);
}

.section-tag-guide {
  color: #0369a1;
  background-color: #f0f9ff;
  border: 1px solid rgba(3, 105, 161, 0.15);
}

.section-heading h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
}

.qa-section .section-intro {
  margin-bottom: 24px;
}

.qa-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: var(--reading-width);
}

/* 预沟通说明 */
.pre-contact {
  margin-top: 64px;
  margin-bottom: 48px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: center;
}

.pre-contact-content h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.pre-contact-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.pre-contact-content a {
  display: inline-block;
  margin-top: 12px;
  margin-right: 16px;
  font-weight: 600;
}

/* ------------------------------------------------------------
   10. Pages — 工作方式
   ------------------------------------------------------------ */

.content-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
  padding-bottom: 64px;
}

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

.module-block {
  margin-bottom: 48px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.module-block h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
}

.module-block p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.module-block .media-figure {
  margin: 24px 0;
  max-width: 100%;
}

.module-block .media-figure figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 12px 4px 0;
}

/* 侧栏 */
.related-links {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.related-links h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.related-links ul {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.related-links ul li {
  border-bottom: 1px solid var(--color-border-light);
}

.related-links ul li:last-child {
  border-bottom: none;
}

.related-links ul li a {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  color: var(--color-text);
  transition: color 0.2s ease;
}

.related-links ul li a:hover {
  color: var(--color-primary);
}

/* 验收清单 */
.acceptance-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.acceptance-list li {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
  padding: 12px 16px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

/* 执行步骤 */
.execution-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: step;
}

.execution-steps li {
  counter-increment: step;
  padding: 12px 0 12px 48px;
  position: relative;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
  border-bottom: 1px solid var(--color-border-light);
}

.execution-steps li:last-child {
  border-bottom: none;
}

.execution-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-primary);
  border-radius: 50%;
}

/* ------------------------------------------------------------
   11. Pages — 404
   ------------------------------------------------------------ */
.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 60vh;
}

.error-section {
  text-align: center;
  padding: 64px 0 32px;
  max-width: 560px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  min-height: 44px;
  transition: background-color 0.2s ease;
}

.btn-back:hover {
  background-color: var(--color-primary-dark);
}

.error-links {
  width: 100%;
  max-width: 640px;
  padding: 32px 0 64px;
  border-top: 1px solid var(--color-border);
}

.error-links h2 {
  font-size: 20px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 24px;
}

.error-links ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.error-links ul li a {
  display: block;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--color-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: border-color 0.2s ease;
}

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

/* ------------------------------------------------------------
   12. Responsive — 响应式
   ------------------------------------------------------------ */

/* 1024px 断点 */
@media (max-width: 1024px) {
  .hero-section {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .featured-service-section {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

  .service-entry {
    grid-template-columns: 220px 1fr;
    gap: 24px;
  }

  .cooperation-item {
    grid-template-columns: 240px 1fr;
    gap: 24px;
  }

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

  .checklist-grid {
    grid-template-columns: 1fr;
  }

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

  .content-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .related-links {
    order: -1;
  }

  .pre-contact {
    grid-template-columns: 1fr;
  }

  .pre-contact-figure {
    max-width: 400px;
  }

  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

/* 640px 断点 */
@media (max-width: 640px) {
  :root {
    --header-height: 60px;
    --space-section: 48px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 20px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .brand-tagline {
    display: none;
  }

  .site-nav {
    position: relative;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: calc(var(--header-height) + 8px);
    right: 0;
    min-width: 200px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 8px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    z-index: 200;
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-link {
    padding: 10px 16px;
    font-size: 15px;
  }

  .header-extended-nav {
    padding: 0 16px 12px;
    gap: 6px;
  }

  .extended-label {
    width: 100%;
  }

  .header-extended-nav a {
    font-size: 13px;
    padding: 6px 10px;
  }

  .inner-main,
  .home-main,
  .error-main {
    padding: 0 16px;
  }

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

  .page-header {
    padding: 12px 0 24px;
    margin-bottom: 32px;
  }

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

  .hero-section {
    grid-template-columns: 1fr;
    padding: 32px 0 48px;
    gap: 24px;
  }

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

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

  .btn {
    width: 100%;
  }

  .cooperation-panel {
    padding: 20px;
  }

  .schedule-section,
  .featured-service-section,
  .task-index-section,
  .updates-and-topic,
  .qa-preview {
    padding: 48px 0;
  }

  .schedule-track {
    grid-template-columns: 1fr;
  }

  .timeline-track {
    grid-template-columns: 1fr;
  }

  .service-detail-grid {
    grid-template-columns: 1fr;
  }

  .task-grid {
    grid-template-columns: 1fr;
  }

  .updates-and-topic {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .overview-grid {
    grid-template-columns: 1fr;
  }

  .service-entry {
    grid-template-columns: 1fr;
  }

  .service-entry-media {
    max-width: 100%;
  }

  .cross-links-grid {
    grid-template-columns: 1fr;
  }

  .cooperation-item {
    grid-template-columns: 1fr;
  }

  .project-field {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .related-links-grid {
    grid-template-columns: 1fr;
  }

  .footer-columns {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 24px;
  }

  .footer-bottom {
    padding: 12px 16px 20px;
  }

  .acceptance-list {
    grid-template-columns: 1fr;
  }

  .error-links ul {
    grid-template-columns: 1fr;
  }

  .error-code {
    font-size: 56px;
  }

  .pre-contact {
    padding: 24px;
  }
}

/* 滚动进场淡入（增强，不影响初始可见性） */
@media (prefers-reduced-motion: no-preference) {
  .schedule-section .stage-card,
  .task-index-section .task-card,
  .service-detail-list .service-entry,
  .timeline-track .timeline-card,
  .checklist-grid .check-item {
    animation: fade-in 0.4s ease both;
  }

  .schedule-section .stage-card:nth-child(2),
  .task-index-section .task-card:nth-child(2),
  .service-detail-list .service-entry:nth-child(2),
  .timeline-track .timeline-card:nth-child(2),
  .checklist-grid .check-item:nth-child(2) {
    animation-delay: 0.05s;
  }

  .schedule-section .stage-card:nth-child(3),
  .task-index-section .task-card:nth-child(3),
  .service-detail-list .service-entry:nth-child(3),
  .timeline-track .timeline-card:nth-child(3),
  .checklist-grid .check-item:nth-child(3) {
    animation-delay: 0.1s;
  }

  .schedule-section .stage-card:nth-child(4),
  .task-index-section .task-card:nth-child(4),
  .service-detail-list .service-entry:nth-child(4),
  .timeline-track .timeline-card:nth-child(4),
  .checklist-grid .check-item:nth-child(4) {
    animation-delay: 0.15s;
  }

  .service-detail-list .service-entry:nth-child(5),
  .task-index-section .task-card:nth-child(5),
  .checklist-grid .check-item:nth-child(5) {
    animation-delay: 0.2s;
  }

  .service-detail-list .service-entry:nth-child(6),
  .task-index-section .task-card:nth-child(6),
  .checklist-grid .check-item:nth-child(6) {
    animation-delay: 0.25s;
  }

  .checklist-grid .check-item:nth-child(7) {
    animation-delay: 0.3s;
  }

  .checklist-grid .check-item:nth-child(8) {
    animation-delay: 0.35s;
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}