/* ==========================================================================
   黑料吃瓜网站 · 全站样式表
   分组：base / layout / header / footer / components / home / inner / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 基础重置与全局排版
   -------------------------------------------------------------------------- */

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

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

body.site-body {
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #1a1a1a;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}

figure {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  color: #111111;
}

p {
  margin: 0;
}

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

a {
  color: #111111;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover,
a:focus-visible {
  color: #555555;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid #111111;
  outline-offset: 2px;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

dl,
dd,
dt {
  margin: 0;
}

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

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: #111111;
  color: #ffffff;
  border-color: #111111;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #333333;
  border-color: #333333;
  color: #ffffff;
}

.btn-ghost {
  background-color: transparent;
  color: #111111;
  border-color: #111111;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: #111111;
  color: #ffffff;
}

/* 文字链 */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: #111111;
  border-bottom: 1px solid #111111;
  padding-bottom: 2px;
}

.text-link:hover,
.text-link:focus-visible {
  color: #555555;
  border-color: #555555;
}

/* --------------------------------------------------------------------------
   layout · 全站骨架：页头、主容器、页脚
   -------------------------------------------------------------------------- */

.site-header {
  position: relative;
  z-index: 30;
  background-color: #ffffff;
  border-bottom: 1px solid #e0e0e0;
}

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

.brand {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0;
  color: #111111;
  white-space: nowrap;
  flex: 0 0 auto;
}

.brand:hover,
.brand:focus-visible {
  color: #333333;
}

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

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

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 12px;
  font-size: 15px;
  color: #333333;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: #111111;
  border-bottom-color: #999999;
}

.nav-link.is-current {
  color: #111111;
  font-weight: 700;
  border-bottom-color: #111111;
}

.header-cta {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background-color: #111111;
  border-radius: 4px;
}

.header-cta:hover,
.header-cta:focus-visible {
  background-color: #333333;
  color: #ffffff;
}

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  padding: 0;
  margin-left: auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: #111111;
}

.site-main {
  display: block;
}

.inner-main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px 72px;
}

.site-footer {
  background-color: #111111;
  color: #d8d8d8;
  margin-top: 0;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 24px 32px;
}

.footer-tagline {
  font-size: 16px;
  color: #f2f2f2;
  margin-bottom: 32px;
  max-width: 720px;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid #2c2c2c;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: #b5b5b5;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #ffffff;
}

.footer-copy {
  padding-top: 20px;
  font-size: 13px;
  color: #8d8d8d;
}

/* --------------------------------------------------------------------------
   components · 通用区块、卡片、列表、表格、FAQ
   -------------------------------------------------------------------------- */

.section {
  padding: 72px 0;
}

.section-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-head {
  margin-bottom: 36px;
  max-width: 820px;
}

.section-head h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.section-sub,
.section-lead,
.section-text {
  font-size: 16px;
  color: #666666;
}

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

.section-title {
  font-size: 28px;
  margin-bottom: 12px;
}

.section-media {
  margin: 28px 0;
}

.section-media img,
.media-figure img,
.cap-figure img,
.coop-media img,
.content-figure img,
.aside-figure img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  object-fit: cover;
  background-color: #f5f5f5;
}

.section-media figcaption,
.media-figure figcaption,
.cap-figure figcaption,
.coop-media figcaption,
.content-figure figcaption,
.aside-figure figcaption {
  margin-top: 10px;
  font-size: 14px;
  color: #666666;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 14px;
  color: #666666;
}

.breadcrumb a {
  color: #666666;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: #111111;
}

.breadcrumb-sep {
  color: #b5b5b5;
}

.breadcrumb-current {
  color: #111111;
}

/* 内页标题区 */
.page-header {
  padding: 20px 0 0;
}

.page-title {
  font-size: 40px;
  font-weight: 700;
  color: #111111;
  line-height: 1.3;
}

.page-title-section {
  max-width: 900px;
  padding: 16px 0 0;
}

.page-title-inner {
  max-width: 900px;
}

.page-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #666666;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: 3px 10px;
  margin-bottom: 14px;
}

.page-summary,
.page-lead {
  margin-top: 16px;
  font-size: 16px;
  color: #666666;
  max-width: 820px;
}

/* 相关支持入口 */
.related-help {
  padding: 56px 0 0;
}

.related-help h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.related-list,
.help-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.related-item,
.help-item {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 20px;
  background-color: #ffffff;
}

.related-item a,
.help-item a,
.related-link,
.help-link {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: #111111;
  margin-bottom: 8px;
}

.related-item a:hover,
.help-item a:hover,
.related-link:hover,
.help-link:hover {
  color: #555555;
}

.related-item p,
.help-item p,
.related-desc,
.help-text,
.help-desc {
  font-size: 14px;
  color: #666666;
}

.help-title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: #111111;
  margin-bottom: 8px;
}

/* 相关内容条 */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #e0e0e0;
  font-size: 14px;
}

.related-links-label {
  color: #666666;
}

.related-links-item {
  color: #111111;
  font-weight: 600;
  border-bottom: 1px solid #111111;
  padding-bottom: 1px;
}

.related-links-item:hover,
.related-links-item:focus-visible {
  color: #555555;
  border-color: #555555;
}

/* FAQ 折叠 */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  background-color: #ffffff;
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  min-height: 48px;
  font-size: 16px;
  font-weight: 600;
  color: #111111;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 400;
  color: #666666;
}

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

.faq-item[open] .faq-question {
  border-bottom: 1px solid #e0e0e0;
}

.faq-answer {
  padding: 16px 20px 20px;
}

.faq-answer p {
  font-size: 15px;
  color: #444444;
}

/* 数据表格 */
.table-wrap {
  overflow-x: auto;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
}

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

.table-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-size: 14px;
  color: #666666;
  background-color: #f5f5f5;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  font-size: 15px;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
  vertical-align: top;
}

.data-table thead th {
  background-color: #f5f5f5;
  font-weight: 700;
  color: #111111;
  white-space: nowrap;
}

.data-table tbody th {
  font-weight: 600;
  color: #111111;
  white-space: nowrap;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: 0;
}

/* 通用列表卡片（能力/规则/岗位等内页条目） */
.cap-item,
.rule-item,
.principle-item,
.standard-card,
.record-block,
.role-item,
.handoff-item,
.contact-item,
.checklist-item,
.confirm-item,
.prep-point,
.boundary-item,
.quality-goal-item,
.overview-point {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  background-color: #ffffff;
  padding: 22px;
}

.cap-item h3,
.rule-item h3,
.principle-item h3,
.standard-card h3,
.record-block h3,
.role-item h3,
.handoff-item h3,
.contact-item h3,
.checklist-item h3,
.confirm-item h3,
.prep-point h3,
.boundary-item h3,
.quality-goal-item h3,
.overview-point h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.cap-item p,
.rule-item p,
.principle-item p,
.standard-card p,
.record-block p,
.role-item p,
.handoff-item p,
.contact-item p,
.checklist-item p,
.confirm-item p,
.prep-point p,
.boundary-item p,
.quality-goal-item p,
.overview-point p {
  font-size: 15px;
  color: #555555;
}

/* --------------------------------------------------------------------------
   home · 首页专属模块
   -------------------------------------------------------------------------- */

.home-main {
  display: block;
}

/* 首屏 */
.hero {
  border-bottom: 1px solid #e0e0e0;
}

.hero-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 56px 24px 48px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 48px;
  align-items: start;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #666666;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: 3px 10px;
  margin-bottom: 18px;
}

.hero-lead h1 {
  font-size: 40px;
  line-height: 1.28;
  margin-bottom: 18px;
}

.hero-summary {
  font-size: 17px;
  color: #555555;
  max-width: 620px;
  margin-bottom: 28px;
}

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

/* 首屏方法目录 */
.hero-index {
  min-width: 0;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 24px;
  background-color: #f5f5f5;
}

.hero-index-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.method-index {
  display: grid;
  gap: 2px;
}

.method-index-item {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid #e0e0e0;
}

.method-index-item:last-child {
  border-bottom: 0;
}

.method-index-num {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 700;
  color: #111111;
  border: 1px solid #111111;
  border-radius: 4px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.method-index-body {
  min-width: 0;
}

.method-index-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 700;
  color: #111111;
  margin-bottom: 4px;
}

.method-index-link:hover,
.method-index-link:focus-visible {
  color: #555555;
}

.method-index-desc {
  font-size: 14px;
  color: #666666;
}

/* 首屏下方通栏主视觉 */
.hero-visual {
  background-color: #111111;
  padding: 0;
}

.hero-figure {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-figure img {
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: cover;
  border-radius: 0;
  background-color: #1a1a1a;
}

.hero-caption {
  padding: 16px 0 22px;
  font-size: 14px;
  color: #b5b5b5;
}

/* 首屏内容图 */
.content-media {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.content-media-primary {
  padding-top: 0;
  padding-bottom: 0;
}

/* 核心能力目录 */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.capability-card {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 22px;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
}

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

.capability-q {
  font-size: 14px;
  color: #666666;
  margin-bottom: 10px;
}

.capability-work,
.capability-deliver {
  font-size: 14px;
  color: #444444;
  margin-bottom: 10px;
}

.card-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: #111111;
  border-bottom: 1px solid #111111;
  align-self: flex-start;
  padding-bottom: 2px;
}

.card-link:hover,
.card-link:focus-visible {
  color: #555555;
  border-color: #555555;
}

/* 技术方法概览步骤条 */
.stage-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  counter-reset: stage;
}

.stage-strip .stage-item {
  border-top: 2px solid #111111;
  padding-top: 18px;
  min-width: 0;
}

.stage-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #666666;
  margin-bottom: 8px;
}

.stage-strip .stage-name {
  font-size: 18px;
  margin-bottom: 8px;
}

.stage-out {
  font-size: 14px;
  color: #555555;
  margin-bottom: 12px;
}

.stage-link {
  font-size: 14px;
  font-weight: 600;
  color: #111111;
  border-bottom: 1px solid #111111;
  padding-bottom: 2px;
}

.stage-link:hover,
.stage-link:focus-visible {
  color: #555555;
  border-color: #555555;
}

/* 质量与复核摘要 */
.quality-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.quality-col {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 24px;
}

.quality-col-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.quality-list {
  display: grid;
  gap: 16px;
}

.quality-item {
  padding-left: 16px;
  border-left: 2px solid #111111;
}

.quality-item-name {
  font-size: 15px;
  font-weight: 700;
  color: #111111;
  margin-bottom: 4px;
}

.quality-item-desc {
  font-size: 14px;
  color: #666666;
}

/* 适用合作场景 */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.scenario-card {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 24px;
  background-color: #ffffff;
}

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

.scenario-desc {
  font-size: 14px;
  color: #666666;
  margin-bottom: 14px;
}

.scenario-list {
  display: grid;
  gap: 10px;
}

.scenario-list li {
  font-size: 14px;
  color: #444444;
  padding-left: 14px;
  position: relative;
}

.scenario-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #111111;
  border-radius: 50%;
}

/* 团队分工概览 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.team-card {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 22px;
  background-color: #ffffff;
}

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

.team-duty {
  font-size: 14px;
  color: #444444;
  margin-bottom: 10px;
}

.team-handoff {
  font-size: 14px;
  color: #666666;
}

/* 合作洽谈准备 */
.prep-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.prep-step {
  border-top: 2px solid #111111;
  padding-top: 18px;
}

.prep-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #666666;
  margin-bottom: 8px;
}

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

.prep-desc {
  font-size: 14px;
  color: #555555;
}

/* 相关支持入口 */
.support-links {
  padding-top: 8px;
}

.support-links h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

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

.support-item {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 20px;
}

.support-link {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: #111111;
  margin-bottom: 8px;
}

.support-link:hover,
.support-link:focus-visible {
  color: #555555;
}

.support-desc {
  font-size: 14px;
  color: #666666;
}

/* --------------------------------------------------------------------------
   inner · 内页业务模块
   -------------------------------------------------------------------------- */

/* 核心能力页 */
.cap-overview {
  padding: 40px 0 0;
}

.cap-overview h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.cap-overview-text {
  font-size: 16px;
  color: #444444;
  max-width: 820px;
  margin-bottom: 20px;
}

.cap-overview-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.cap-list .cap-item {
  margin-bottom: 18px;
}

.cap-item-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.cap-item-index {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 700;
  color: #111111;
  border: 1px solid #111111;
  border-radius: 4px;
  padding: 2px 8px;
}

.cap-item-detail {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 8px 16px;
}

.cap-item-detail dt {
  font-size: 14px;
  font-weight: 700;
  color: #111111;
}

.cap-item-detail dd {
  font-size: 15px;
  color: #555555;
}

.cap-item-link {
  margin-top: 14px;
  font-size: 14px;
}

.cap-item-link a {
  font-weight: 600;
  color: #111111;
  border-bottom: 1px solid #111111;
  padding-bottom: 2px;
}

.cap-item-link a:hover,
.cap-item-link a:focus-visible {
  color: #555555;
  border-color: #555555;
}

.cap-figure {
  padding: 32px 0 0;
}

.cap-scene {
  padding: 48px 0 0;
}

.scene-table {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  overflow: hidden;
}

.scene-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.3fr);
}

.scene-row + .scene-row {
  border-top: 1px solid #e0e0e0;
}

.scene-row-head {
  background-color: #f5f5f5;
}

.scene-cell {
  padding: 14px 16px;
  font-size: 15px;
  color: #444444;
  border-right: 1px solid #e0e0e0;
  min-width: 0;
}

.scene-cell:last-child {
  border-right: 0;
}

.scene-row-head .scene-cell {
  font-weight: 700;
  color: #111111;
}

.scene-cell-name {
  font-weight: 600;
  color: #111111;
}

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

.cap-boundary-lead {
  font-size: 16px;
  color: #666666;
  max-width: 820px;
  margin-bottom: 20px;
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

/* 技术方法页 */
.method-overview {
  padding: 40px 0 0;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.method-stages {
  padding: 48px 0 0;
}

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

.stage-list .stage-item {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  border-top: 2px solid #111111;
  padding: 22px;
}

.stage-list .stage-name {
  font-size: 18px;
  margin-bottom: 8px;
}

.stage-index {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #666666;
  margin-bottom: 8px;
}

.stage-text {
  font-size: 15px;
  color: #555555;
  margin-bottom: 10px;
}

.stage-output {
  font-size: 14px;
  color: #444444;
}

.stage-output-label {
  font-weight: 700;
  color: #111111;
  margin-right: 6px;
}

.stage-matrix {
  padding: 48px 0 0;
}

.record-rules {
  padding: 48px 0 0;
}

.rule-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.rule-name {
  font-size: 17px;
  margin-bottom: 8px;
}

.rule-text {
  font-size: 14px;
  color: #555555;
}

/* 质量体系页 */
.quality-intro {
  padding: 40px 0 0;
}

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

.quality-goal-list {
  display: grid;
  gap: 16px;
}

.quality-standard {
  padding: 48px 0 0;
}

.standard-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.standard-desc {
  font-size: 14px;
  color: #555555;
  margin-bottom: 12px;
}

.standard-check-list {
  display: grid;
  gap: 8px;
}

.standard-check-list li {
  font-size: 14px;
  color: #444444;
  padding-left: 14px;
  position: relative;
}

.standard-check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #111111;
  border-radius: 50%;
}

.quality-record {
  padding: 48px 0 0;
}

.record-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.record-method {
  font-size: 14px;
  color: #666666;
  margin-top: 8px;
}

.quality-checklist {
  padding: 48px 0 0;
}

.quality-checklist .checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.checklist-status {
  font-size: 13px;
  color: #666666;
  margin-top: 8px;
}

/* 团队分工页 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

.content-block {
  padding: 40px 0 0;
}

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

.block-lead {
  font-size: 16px;
  color: #666666;
  max-width: 820px;
  margin-bottom: 20px;
}

.overview-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.role-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.role-index {
  font-size: 13px;
  font-weight: 700;
  color: #666666;
  margin-bottom: 6px;
}

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

.role-duty,
.role-handoff,
.role-note {
  font-size: 14px;
  color: #555555;
  margin-bottom: 6px;
}

.role-note {
  color: #666666;
  margin-bottom: 0;
}

.content-figure {
  padding: 40px 0 0;
}

.handoff-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.handoff-parties {
  font-size: 14px;
  color: #666666;
  margin-bottom: 8px;
}

.handoff-detail {
  font-size: 14px;
  color: #555555;
}

.contact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-duty,
.contact-channel {
  font-size: 14px;
  color: #555555;
  margin-bottom: 6px;
}

.contact-channel {
  color: #666666;
  margin-bottom: 0;
}

/* 常见问题页 */
.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: 40px;
  align-items: start;
  padding-top: 40px;
}

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

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

.faq-category {
  padding-bottom: 8px;
}

.faq-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.faq-tag a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  font-size: 14px;
  color: #111111;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.faq-tag a:hover,
.faq-tag a:focus-visible {
  border-color: #111111;
  background-color: #f5f5f5;
}

.faq-group {
  padding-top: 36px;
}

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

.aside-title {
  font-size: 18px;
  margin-bottom: 14px;
}

.aside-help {
  border-top: 2px solid #111111;
  padding-top: 20px;
}

/* 合作洽谈页 */
.coop-prep {
  padding: 40px 0 0;
}

.prep-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

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

.coop-checklist,
.coop-steps {
  padding-top: 40px;
}

.coop-checklist .checklist {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.coop-checklist .checklist-item {
  list-style: decimal;
  list-style-position: inside;
}

.step-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.step-item {
  border-top: 2px solid #111111;
  padding-top: 18px;
}

.step-index {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #666666;
  margin-bottom: 8px;
}

.step-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: #555555;
}

.coop-confirm {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 24px;
  background-color: #f5f5f5;
}

.coop-confirm h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

.aside-lead {
  font-size: 14px;
  color: #666666;
  margin-bottom: 18px;
}

.confirm-list {
  display: grid;
  gap: 16px;
}

.confirm-item {
  padding: 18px;
}

/* 404 页 */
.error-main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 72px 24px;
}

.error-panel {
  max-width: 720px;
}

.error-code {
  font-size: 14px;
  font-weight: 700;
  color: #666666;
  margin-bottom: 12px;
}

.error-title {
  font-size: 40px;
  margin-bottom: 16px;
}

.error-text {
  font-size: 16px;
  color: #666666;
  margin-bottom: 28px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.error-links {
  padding-top: 56px;
}

.error-link-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.error-link-list a {
  display: block;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 18px;
  font-size: 15px;
  font-weight: 600;
  color: #111111;
}

.error-link-list a:hover,
.error-link-list a:focus-visible {
  border-color: #111111;
  background-color: #f5f5f5;
}

/* --------------------------------------------------------------------------
   responsive · 断点适配
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
    padding: 48px 24px 40px;
  }

  .capability-grid,
  .team-grid,
  .stage-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scenario-grid,
  .prep-steps,
  .support-list,
  .cap-overview-points,
  .principle-list,
  .standard-grid,
  .record-layout,
  .handoff-list,
  .prep-points,
  .step-flow,
  .overview-points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .layout-shell {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

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

  .footer-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (max-width: 768px) {
  /* 页头与移动导航 */
  .header-inner {
    padding: 0 16px;
    min-height: 64px;
    gap: 12px;
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    flex: 1 1 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 4px;
    border-top: 1px solid #e0e0e0;
  }

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

  .nav-link {
    min-height: 52px;
    padding: 0 4px;
    border-bottom: 1px solid #f0f0f0;
  }

  .nav-link.is-current {
    border-bottom-color: #111111;
  }

  .nav-toggle {
    display: flex;
  }

  .header-cta {
    min-height: 42px;
    padding: 0 14px;
    font-size: 13px;
  }

  /* 主容器 */
  .section {
    padding: 48px 0;
  }

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

  .inner-main {
    padding: 0 16px 56px;
  }

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

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

  .page-title-section {
    padding: 12px 0 0;
  }

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

  /* 首屏 */
  .hero-inner {
    padding: 32px 16px 32px;
    gap: 28px;
  }

  .hero-lead h1 {
    font-size: 28px;
  }

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

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .hero-figure {
    padding: 0 16px;
  }

  .content-media {
    padding: 0 16px;
  }

  /* 首页栅格全部单列 */
  .capability-grid,
  .team-grid,
  .stage-strip,
  .scenario-grid,
  .prep-steps,
  .support-list,
  .quality-columns,
  .cap-overview-points,
  .principle-list,
  .standard-grid,
  .record-layout,
  .handoff-list,
  .prep-points,
  .step-flow,
  .overview-points,
  .boundary-list,
  .role-list,
  .contact-list,
  .quality-checklist .checklist,
  .coop-checklist .checklist,
  .stage-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  /* 场景对照表转纵向 */
  .scene-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .scene-cell {
    border-right: 0;
    border-bottom: 1px solid #e0e0e0;
  }

  .scene-cell:last-child {
    border-bottom: 0;
  }

  .scene-row + .scene-row {
    border-top: 0;
  }

  .scene-row:not(.scene-row-head) {
    border-top: 2px solid #e0e0e0;
  }

  /* 能力详情定义列表 */
  .cap-item-detail {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .cap-item-detail dd {
    margin-bottom: 8px;
  }

  /* 页脚 */
  .footer-inner {
    padding: 36px 16px 24px;
  }

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

  .footer-tagline {
    margin-bottom: 24px;
  }

  /* 404 */
  .error-main {
    padding: 48px 16px;
  }

  .error-title {
    font-size: 28px;
  }
}

@media (max-width: 400px) {
  .header-cta {
    padding: 0 12px;
  }

  .brand {
    font-size: 17px;
  }

  .btn {
    padding: 0 18px;
    font-size: 14px;
  }
}