/* ==========================================================================
   每日黑料官网 · 整站样式
   设计方向：活动日程风 / 白底主背景 / 深蓝与橙色强调
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base — 变量、重置、全局基础
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #0a1f33;
  --color-white: #ffffff;
  --color-bg-light: #f4f7fa;
  --color-accent: #2d5f8a;
  --color-orange: #ff6b35;
  --color-text: #334455;
  --color-text-light: #6b7a8d;
  --color-border: #dce3ea;
  --color-border-light: #e8edf2;
  --color-hover-bg: #eef3f8;

  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;

  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;

  --header-height: 72px;
}

*,
*::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-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

figure {
  margin: 0;
}

figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* 统一容器 */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --------------------------------------------------------------------------
   2. Layout — 页头、页脚、主容器骨架
   -------------------------------------------------------------------------- */

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

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

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

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

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

.site-nav {
  margin-left: auto;
}

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

.nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-list a:hover {
  color: var(--color-primary);
  background-color: var(--color-hover-bg);
}

.nav-list a.is-current {
  color: var(--color-primary);
  border-bottom-color: var(--color-orange);
  font-weight: 600;
}

.header-cta {
  display: inline-block;
  padding: 8px 20px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.header-cta:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* 导航切换按钮（手机端显示） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- 主内容 ---------- */
.site-main {
  flex: 1;
  width: 100%;
}

/* 首页主内容 */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 内页主内容 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 4px;
  font-size: 13px;
  color: var(--color-text-light);
}

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

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

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

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

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

.page-title {
  font-size: 28px;
  margin-bottom: 10px;
}

.page-description {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 720px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.72);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.footer-nav-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-nav-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 16px;
}

.footer-nav-list a {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-nav-list a:hover {
  color: var(--color-orange);
}

.footer-notes {
  font-size: 13px;
  line-height: 1.6;
}

.footer-note-item {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.back-to-top:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

/* ---------- 通用区块标题 ---------- */
.section-title {
  font-size: 22px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 720px;
}

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

.section-heading h2 {
  margin-bottom: 8px;
}

.section-heading p {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 640px;
}

.section-more {
  margin-top: 24px;
  font-size: 14px;
}

.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

.text-link:hover {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}

/* ---------- 按钮 ---------- */
.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

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

.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  background-color: transparent;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

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

/* ---------- 折叠面板 ---------- */
details {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
}

details summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 16px 20px;
  list-style: none;
  position: relative;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--color-accent);
  transition: transform 0.2s ease;
}

details[open] summary::after {
  content: "−";
}

details[open] summary {
  border-bottom: 1px solid var(--color-border-light);
}

/* ---------- 相关链接 ---------- */
.related-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 24px 0;
  margin-top: 48px;
  border-top: 1px solid var(--color-border-light);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-light);
  margin-right: 8px;
}

.related-links-item {
  display: inline-block;
  padding: 6px 14px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-accent);
  transition: background-color 0.2s ease;
}

.related-links-item:hover {
  background-color: var(--color-hover-bg);
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   3. Components — 首页模块
   -------------------------------------------------------------------------- */

/* ---------- Hero 区 ---------- */
.hero-brand-visual {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0 64px;
}

.hero-text h1 {
  font-size: 28px;
  line-height: 1.35;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 520px;
}

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

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.hero-visual figcaption {
  margin-top: 8px;
  text-align: center;
}

/* ---------- 今日监测动态（日程列表） ---------- */
.service-schedule-directory {
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
}

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

.schedule-item {
  display: grid;
  grid-template-columns: 92px 1fr auto auto;
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.schedule-item:hover {
  background-color: var(--color-white);
  border-color: var(--color-border);
}

.schedule-time {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

.schedule-content h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.schedule-content p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

.status-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  white-space: nowrap;
}

.status-active {
  background-color: rgba(255, 107, 53, 0.12);
  color: var(--color-orange);
}

.status-available {
  background-color: rgba(45, 95, 138, 0.1);
  color: var(--color-accent);
}

.status-on-demand {
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.schedule-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

.schedule-link:hover {
  color: var(--color-orange);
}

/* ---------- 服务能力摘要 ---------- */
.capability-summary {
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.capability-card {
  padding: 24px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.capability-card:hover {
  border-color: var(--color-border);
  box-shadow: 0 2px 8px rgba(10, 31, 51, 0.06);
}

.capability-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 18px;
  color: var(--color-accent);
}

.capability-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

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

/* ---------- 服务成果交付预览 ---------- */
.delivery-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
}

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

.delivery-text p {
  font-size: 15px;
  color: var(--color-text-light);
}

.delivery-points {
  margin: 16px 0 20px;
}

.delivery-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.delivery-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-orange);
}

.delivery-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.delivery-visual figcaption {
  margin-top: 8px;
  text-align: center;
}

/* ---------- 执行流程预览 ---------- */
.process-preview {
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.process-node {
  position: relative;
  padding: 20px 16px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  text-align: center;
}

.node-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.process-node h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.process-node p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 0;
}

/* ---------- 团队协作原则横幅 ---------- */
.team-principle {
  padding: 40px 32px;
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  margin: 8px 0 56px;
}

.team-principle h2 {
  color: var(--color-white);
  font-size: 20px;
  margin-bottom: 12px;
}

.team-principle p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  margin-bottom: 16px;
  max-width: 720px;
}

.team-principle .text-link {
  color: var(--color-orange);
}

.team-principle .text-link:hover {
  color: var(--color-white);
  border-bottom-color: var(--color-white);
}

/* ---------- FAQ 预览 ---------- */
.faq-preview {
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
}

.faq-item summary {
  padding: 16px 20px;
}

.faq-item p {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 合作入口横幅 ---------- */
.cooperation-banner {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  margin: 8px 0 56px;
  text-align: center;
}

.banner-content h2 {
  margin-bottom: 12px;
}

.banner-content p {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto 24px;
}

/* --------------------------------------------------------------------------
   4. Components — 内页共用模块
   -------------------------------------------------------------------------- */

/* ---------- 执行摘要 ---------- */
.executive-summary {
  padding: 24px 0 40px;
}

.summary-text {
  font-size: 15px;
  color: var(--color-text);
  max-width: 760px;
  line-height: 1.8;
}

.summary-text a {
  font-weight: 600;
}

/* ---------- 交付物目录 ---------- */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.catalog-card {
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}

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

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

.card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--color-bg-light);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.card-title {
  font-size: 17px;
}

.card-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.card-meta {
  border-top: 1px solid var(--color-border-light);
  padding-top: 12px;
}

.meta-row {
  display: flex;
  gap: 8px;
  font-size: 13px;
  padding: 4px 0;
}

.meta-row dt {
  color: var(--color-text-light);
  flex-shrink: 0;
  min-width: 56px;
}

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

/* ---------- 交付标准 ---------- */
.standard-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.standard-item {
  padding: 20px;
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.standard-title {
  font-size: 16px;
  margin-bottom: 8px;
}

.standard-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---------- 成果样例 ---------- */
.sample-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.sample-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.sample-figure figcaption {
  margin-top: 8px;
  text-align: center;
}

.sample-lead {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.sample-structure {
  margin-bottom: 16px;
}

.sample-structure li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.sample-structure li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-orange);
}

.sample-structure strong {
  color: var(--color-primary);
  font-weight: 600;
}

.sample-note {
  font-size: 13px;
  color: var(--color-text-light);
  border-left: 3px solid var(--color-border);
  padding-left: 12px;
}

/* ---------- 相关链接卡片 ---------- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.related-card:hover {
  background-color: var(--color-white);
  border-color: var(--color-accent);
}

.related-card-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.related-card:hover .related-card-title {
  color: var(--color-accent);
}

.related-card-desc {
  display: block;
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ---------- 服务矩阵表 ---------- */
.matrix-table {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 48px;
}

.matrix-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  border-bottom: 1px solid var(--color-border-light);
}

.matrix-row:last-child {
  border-bottom: none;
}

.matrix-header {
  background-color: var(--color-primary);
}

.matrix-header .matrix-cell {
  color: var(--color-white);
  font-weight: 600;
  font-size: 14px;
}

.matrix-cell {
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  border-right: 1px solid var(--color-border-light);
}

.matrix-cell:last-child {
  border-right: none;
}

.matrix-name {
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-bg-light);
}

/* ---------- 适用场景 ---------- */
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 48px;
}

.scenario-card {
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}

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

.scenario-card-title {
  font-size: 17px;
  margin-bottom: 10px;
}

.scenario-card-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.scenario-card a {
  font-size: 14px;
  font-weight: 600;
}

/* ---------- 服务覆盖图 ---------- */
.service-coverage-figure {
  margin: 0 0 48px;
}

.service-coverage-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.service-coverage-caption {
  margin-top: 8px;
  text-align: center;
}

/* ---------- 边界说明 ---------- */
.boundary-note {
  padding: 24px;
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-orange);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 48px;
}

.boundary-note p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 0;
}

.boundary-note a {
  font-weight: 600;
}

/* ---------- FAQ 详情 ---------- */
.faq-detail {
  margin-bottom: 12px;
}

.faq-question {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.faq-answer {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-answer a {
  font-weight: 600;
}

/* ---------- 流程概览 ---------- */
.process-overview {
  padding: 24px 0 40px;
}

.process-overview p {
  font-size: 15px;
  color: var(--color-text);
  max-width: 760px;
  line-height: 1.8;
}

.content-media-inline {
  margin: 24px 0;
}

.content-media-inline img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.content-media-inline figcaption {
  margin-top: 8px;
  text-align: center;
}

/* ---------- 纵向时间线 ---------- */
.timeline {
  position: relative;
  padding-left: 32px;
  margin-bottom: 48px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-node {
  position: relative;
  padding-bottom: 32px;
}

.timeline-node::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-orange);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-orange);
}

.node-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 6px;
}

.node-phase {
  display: inline-block;
  padding: 2px 10px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
}

.node-period {
  font-size: 13px;
  color: var(--color-text-light);
}

.node-title {
  font-size: 17px;
  margin-bottom: 6px;
}

.node-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.node-result {
  font-size: 13px;
  color: var(--color-accent);
  line-height: 1.5;
}

/* ---------- 合作准备清单 ---------- */
.preparation-lead {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
}

.checklist-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 20px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.check-item-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  flex-shrink: 0;
  min-width: 120px;
}

.check-item-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---------- 下一步链接 ---------- */
.next-step-link {
  padding: 32px;
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  margin-bottom: 48px;
}

.next-step-link h2 {
  color: var(--color-white);
  font-size: 20px;
  margin-bottom: 12px;
}

.next-step-link p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  margin-bottom: 0;
}

.next-step-link a {
  color: var(--color-orange);
  font-weight: 600;
  margin-right: 16px;
}

.next-step-link a:hover {
  color: var(--color-white);
}

/* ---------- 协作职责分工 ---------- */
.role-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.role-card {
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}

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

.role-card h3 {
  font-size: 16px;
  margin-bottom: 10px;
}

.role-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.role-boundary {
  font-size: 13px;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border-light);
  padding-top: 12px;
}

/* ---------- 质量保障 ---------- */
.quality-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.quality-text p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 12px;
}

.quality-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.quality-figure figcaption {
  margin-top: 8px;
  text-align: center;
}

/* ---------- 协作节奏 ---------- */
.rhythm-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
}

.rhythm-item {
  display: flex;
  gap: 20px;
  padding: 16px 20px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.rhythm-period {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  min-width: 60px;
}

.rhythm-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---------- FAQ 入口卡片 ---------- */
.faq-entry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 48px;
}

.faq-entry-card {
  display: block;
  padding: 20px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.faq-entry-card:hover {
  background-color: var(--color-white);
  border-color: var(--color-accent);
}

.faq-entry-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.faq-entry-card p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 0;
}

/* ---------- FAQ 分组 ---------- */
.faq-group {
  margin-bottom: 32px;
}

.faq-group-title {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}

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

.faq-group .faq-item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
}

.faq-group .faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.faq-group .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--color-accent);
}

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

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---------- FAQ 图片 ---------- */
.faq-media {
  margin: 32px 0 48px;
}

.faq-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.faq-media figcaption {
  margin-top: 8px;
  text-align: center;
}

/* ---------- 未覆盖问题指引 ---------- */
.guide-content {
  padding: 24px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.guide-content p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.guide-list {
  margin: 16px 0;
  padding-left: 0;
}

.guide-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.guide-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-orange);
}

.guide-list a {
  font-weight: 600;
}

/* ---------- 入口卡片 ---------- */
.entry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 48px;
}

.entry-card {
  display: block;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}

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

.entry-card-title {
  font-size: 16px;
  margin-bottom: 8px;
}

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

/* ---------- 合作自检清单 ---------- */
.checklist-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
}

.checklist-list li {
  padding: 20px;
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.checklist-list h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.checklist-list p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---------- 对接步骤 ---------- */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 48px;
  counter-reset: step-counter;
}

.steps-list li {
  position: relative;
  padding: 20px 20px 20px 72px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  counter-increment: step-counter;
}

.steps-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 20px;
  top: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.steps-list h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.steps-list p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---------- 合作相关链接卡片 ---------- */
.related-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

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

.rel-card:hover {
  background-color: var(--color-white);
  border-color: var(--color-accent);
}

.rel-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.rel-card p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 0;
}

/* ---------- 合作视觉图 ---------- */
.contact-visual {
  margin-bottom: 48px;
}

.contact-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.contact-visual figcaption {
  margin-top: 8px;
  text-align: center;
}

/* --------------------------------------------------------------------------
   5. Pages — 404 页面
   -------------------------------------------------------------------------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background-color: var(--color-bg-light);
}

.error-panel {
  text-align: center;
  max-width: 480px;
  padding: 48px 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
}

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

.error-panel h1 {
  font-size: 22px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.error-btn-primary {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
}

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

.error-btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  background-color: transparent;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.error-btn-secondary:hover {
  border-color: var(--color-accent);
  background-color: var(--color-bg-light);
}

/* --------------------------------------------------------------------------
   6. Responsive — 响应式布局
   -------------------------------------------------------------------------- */

/* ---------- 平板（≤1024px） ---------- */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 20px;
  }

  .brand-slogan {
    display: none;
  }

  .nav-list a {
    padding: 8px 10px;
    font-size: 14px;
  }

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

  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-notes {
    grid-column: 1 / -1;
  }
}

/* ---------- 手机（≤768px） ---------- */
@media (max-width: 768px) {
  .header-inner {
    height: 60px;
    padding: 0 16px;
    gap: 12px;
  }

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

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: 0 4px 12px rgba(10, 31, 51, 0.08);
    margin-left: 0;
  }

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

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

  .nav-list a {
    padding: 12px 8px;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border-light);
    border-radius: 0;
  }

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

  .nav-list a.is-current {
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-orange);
  }

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

  .header-cta {
    display: none;
  }

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

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

  .page-title {
    font-size: 24px;
  }

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

  /* Hero */
  .hero-brand-visual {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 0 48px;
  }

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

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

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    text-align: center;
  }

  /* 日程列表 */
  .schedule-item {
    grid-template-columns: 1fr auto;
    gap: 8px 12px;
    padding: 14px 16px;
  }

  .schedule-time {
    grid-column: 1 / -1;
  }

  .schedule-content {
    grid-column: 1;
  }

  .status-tag {
    grid-column: 2;
    grid-row: 2;
  }

  .schedule-link {
    grid-column: 1 / -1;
  }

  /* 能力卡片 */
  .capability-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 交付预览 */
  .delivery-preview {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 0;
  }

  /* 流程时间线 */
  .process-timeline {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .process-node {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 0 12px;
    text-align: left;
    align-items: center;
    padding: 16px;
  }

  .node-number {
    grid-row: 1 / 3;
    margin-bottom: 0;
  }

  .process-node h3 {
    margin-bottom: 2px;
  }

  /* 团队横幅 */
  .team-principle {
    padding: 32px 24px;
    margin-bottom: 40px;
  }

  /* 合作横幅 */
  .cooperation-banner {
    padding: 32px 24px;
    margin-bottom: 40px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 20px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* 内页通用 */
  .breadcrumb {
    padding: 16px 0 4px;
  }

  /* 目录卡片 */
  .catalog-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 标准列表 */
  .standard-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 样例布局 */
  .sample-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* 相关链接 */
  .related-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 矩阵表 */
  .matrix-row {
    grid-template-columns: 1fr;
  }

  .matrix-header {
    display: none;
  }

  .matrix-cell {
    border-right: none;
    border-bottom: 1px solid var(--color-border-light);
    padding: 12px 16px;
  }

  .matrix-cell:last-child {
    border-bottom: none;
  }

  .matrix-name {
    background-color: var(--color-bg-light);
    font-weight: 700;
  }

  /* 场景卡片 */
  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 角色卡片 */
  .role-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 质量保障 */
  .quality-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* FAQ 入口卡片 */
  .faq-entry-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 入口卡片 */
  .entry-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 合作相关链接卡片 */
  .related-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 清单项 */
  .checklist-item {
    flex-direction: column;
    gap: 4px;
  }

  .check-item-title {
    min-width: 0;
  }

  /* 对接步骤 */
  .steps-list li {
    padding: 16px 16px 16px 60px;
  }

  .steps-list li::before {
    left: 16px;
    top: 16px;
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  /* 404 */
  .error-panel {
    padding: 32px 24px;
  }

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

/* ---------- 小屏手机（≤390px） ---------- */
@media (max-width: 390px) {
  .footer-nav-list {
    grid-template-columns: 1fr;
  }

  .nav-list a {
    font-size: 14px;
    padding: 10px 8px;
  }

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

  .schedule-time {
    grid-column: 1;
  }

  .status-tag {
    grid-column: 1;
    grid-row: auto;
  }

  .schedule-link {
    grid-column: 1;
  }
}

/* ---------- 打印样式 ---------- */
@media print {
  .site-header,
  .site-footer,
  .nav-toggle,
  .breadcrumb,
  .related-links,
  .back-to-top {
    display: none !important;
  }

  .site-main {
    padding: 0;
  }

  .hero-brand-visual,
  .delivery-preview,
  .quality-layout,
  .sample-layout {
    grid-template-columns: 1fr;
  }
}