/* =========================================================
   天美app 企业服务官网 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================= */

/* ---------- base ---------- */
:root {
  --ink: #232323;
  --ink-soft: #4a4a46;
  --forest: #1F3A34;
  --forest-deep: #162b26;
  --copper: #8A6A4A;
  --paper: #F6F4EE;
  --paper-alt: #FFFFFF;
  --line: #DEDBD2;
  --line-soft: #e8e5dc;
  --radius: 6px;
  --container: 1160px;
  --read: 760px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--paper);
  font-weight: 400;
}

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

a {
  color: var(--forest);
  text-decoration: none;
  text-underline-offset: 3px;
}

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

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--forest);
  line-height: 1.35;
  margin: 0;
}

p {
  margin: 0 0 1em;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--forest);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: top 0.16s ease;
}

.skip-link:focus {
  top: 12px;
  color: #fff;
}

/* ---------- layout ---------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--paper);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.home-main,
.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.inner-main {
  padding-top: 24px;
  padding-bottom: 64px;
}

/* 页头 */
.site-header {
  position: relative;
  background-color: var(--paper);
  border-bottom: 1px solid var(--line);
  z-index: 60;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--forest);
  white-space: nowrap;
}

.brand:hover {
  color: var(--copper);
}

/* 主导航 */
.site-nav {
  font-family: var(--sans);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 22px;
}

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

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  height: 2px;
  background-color: var(--copper);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.16s ease;
}

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

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

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-alt);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--forest);
}

/* 移动分类标签条 */
.nav-scroll {
  display: none;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 12px;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

.nav-scroll::-webkit-scrollbar {
  display: none;
}

.nav-scroll a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-alt);
  color: var(--ink-soft);
  white-space: nowrap;
}

.nav-scroll a.is-current {
  border-color: var(--forest);
  color: var(--forest);
  font-weight: 600;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  padding: 4px 0 18px;
}

.breadcrumb a {
  color: var(--ink-soft);
  text-decoration: underline;
  text-decoration-color: var(--line);
}

.breadcrumb a:hover {
  color: var(--copper);
  text-decoration-color: var(--copper);
}

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

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

/* 页面标题区 */
.page-header {
  padding: 8px 0 0;
}

.page-title {
  font-size: 44px;
  line-height: 1.28;
  color: var(--forest);
  max-width: 900px;
}

.page-hero,
.page-head,
section.page-title {
  padding: 20px 0 8px;
}

.page-lead {
  max-width: var(--read);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0;
}

/* 通用区块 */
.inner-main > section {
  padding: 40px 0;
  border-top: 1px solid var(--line-soft);
}

.inner-main > section:first-of-type {
  border-top: 0;
}

.section-head {
  margin-bottom: 24px;
}

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

.section-desc,
.section-intro,
.section-lead {
  max-width: var(--read);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0 0 20px;
}

.section-head .section-desc {
  margin-bottom: 0;
}

.section-more {
  display: inline-block;
  margin-top: 20px;
  font-size: 15px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 2px;
}

.section-more:hover {
  color: var(--copper);
}

/* 页脚 */
.site-footer {
  flex: 0 0 auto;
  background-color: var(--forest-deep);
  color: #d9d6cd;
  margin-top: 0;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand .footer-logo {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #b7b3a8;
  margin: 0;
}

.footer-heading {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: #fff;
  margin: 0 0 16px;
  text-transform: none;
}

.footer-nav .footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 20px;
}

.footer-links a,
.path-list a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-size: 14px;
  color: #c9c5ba;
}

.footer-links a:hover,
.path-list a:hover {
  color: #fff;
  text-decoration: underline;
  text-decoration-color: var(--copper);
}

.path-list {
  counter-reset: footpath;
}

.path-list li {
  counter-increment: footpath;
  display: flex;
  align-items: center;
  gap: 8px;
}

.path-list li::before {
  content: counter(footpath);
  font-family: var(--serif);
  font-size: 12px;
  color: var(--copper);
  border: 1px solid rgba(138, 106, 74, 0.6);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 20px;
}

.footer-boundary p:not(.footer-heading) {
  font-size: 13px;
  line-height: 1.8;
  color: #a8a498;
  margin: 0;
}

.footer-copyright {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px 28px;
  font-size: 12px;
  color: #8f8b80;
  border-top: 1px solid rgba(222, 219, 210, 0.14);
}

/* ---------- components ---------- */
/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  font-size: 15px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.btn-primary {
  background-color: var(--forest);
  color: #fff;
  border-color: var(--forest);
}

.btn-primary:hover {
  background-color: var(--forest-deep);
  color: #fff;
}

.btn-ghost {
  background-color: transparent;
  color: var(--forest);
  border-color: var(--forest);
}

.btn-ghost:hover {
  background-color: var(--forest);
  color: #fff;
}

/* 数据表 */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-alt);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.data-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px;
  font-size: 13px;
  color: var(--ink-soft);
  background-color: var(--paper);
  border-bottom: 1px solid var(--line);
}

.data-table thead th {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--forest);
  text-align: left;
  padding: 14px 18px;
  background-color: var(--paper);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.data-table tbody th {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--forest);
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  background-color: var(--paper);
}

.data-table tbody td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}

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

.data-table tbody tr:nth-child(even) td {
  background-color: #fbfaf6;
}

/* 清单 */
.check-list {
  display: grid;
  gap: 14px;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--copper);
  border-bottom: 2px solid var(--copper);
  transform: rotate(-45deg);
}

.check-list li strong {
  display: block;
  color: var(--forest);
  font-weight: 600;
  margin-bottom: 2px;
}

/* 步骤序号 */
.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--copper);
  color: var(--copper);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
  flex: 0 0 32px;
}

/* 路径条 */
.path-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.path-step {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.path-step h3 {
  font-size: 18px;
}

.path-step p {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0;
}

/* 图片容器 */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--paper-alt);
}

figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.guide-media,
.workflow-media,
.pitfall-media,
.advanced-media,
.updates-media,
.contact-media {
  margin: 40px 0;
}

.guide-media img,
.workflow-media img,
.pitfall-media img,
.advanced-media img,
.updates-media img,
.contact-media img {
  aspect-ratio: 16 / 9;
}

/* FAQ 折叠 */
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-alt);
  margin-bottom: 12px;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 22px;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--forest);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
}

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

.faq-item summary::after {
  content: "+";
  font-family: var(--sans);
  font-size: 20px;
  color: var(--copper);
  line-height: 1;
  flex: 0 0 auto;
}

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

.faq-answer {
  padding: 0 22px 20px;
}

.faq-answer p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

/* ---------- pages ---------- */
/* 首页 */
.home-main {
  padding-bottom: 24px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 56px;
  align-items: center;
  padding: 56px 0 48px;
}

.hero-copy {
  max-width: 620px;
}

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--copper);
  margin: 0 0 18px;
}

.hero h1 {
  font-size: 44px;
  line-height: 1.28;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 560px;
}

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

.hero-media {
  width: 100%;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.hero-table {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.hero-table h2,
.service-grid h2,
.flow-preview h2,
.pitfall-preview h2,
.updates-preview h2,
.contact-cta h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.hero-table .section-lead,
.service-grid .section-lead,
.flow-preview .section-lead,
.pitfall-preview .section-lead,
.updates-preview .section-lead {
  margin-bottom: 24px;
}

/* 首屏信息表（div 模拟表格） */
.data-table[role="table"] {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-alt);
  overflow: hidden;
}

.data-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.9fr) minmax(0, 2.2fr) minmax(120px, 0.9fr);
  border-bottom: 1px solid var(--line-soft);
}

.data-row:last-child {
  border-bottom: 0;
}

.data-row > div {
  padding: 16px 18px;
  font-size: 15px;
  line-height: 1.7;
  min-width: 0;
}

.data-row .field {
  font-weight: 600;
  color: var(--forest);
  background-color: var(--paper);
  border-right: 1px solid var(--line-soft);
}

.data-row .statement {
  color: var(--ink);
}

.data-row .entry {
  border-left: 1px solid var(--line-soft);
}

.data-row .entry a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 1px;
  word-break: break-word;
}

.data-row .entry a:hover {
  color: var(--copper);
}

.data-head > div {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--forest);
  background-color: var(--paper);
}

.data-head .entry {
  border-left: 1px solid var(--line-soft);
}

/* 服务事项主次网格 */
.service-grid {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

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

.service-card {
  display: flex;
  flex-direction: column;
  padding: 26px 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.service-card-feature {
  grid-column: span 2;
  border-color: var(--forest);
}

.service-card h3 {
  font-size: 20px;
  margin-bottom: 16px;
}

.service-fields {
  margin: 0 0 20px;
  display: grid;
  gap: 10px;
}

.service-fields dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
  margin-bottom: 2px;
}

.service-fields dd {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.card-link {
  margin-top: auto;
  font-size: 15px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  align-self: flex-start;
  padding-bottom: 2px;
}

.card-link:hover {
  color: var(--copper);
}

/* 流程预览 */
.flow-preview {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  counter-reset: flow;
}

.flow-step {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px;
  border-top: 2px solid var(--forest);
  background-color: var(--paper-alt);
  border-radius: 0 0 var(--radius) var(--radius);
  min-width: 0;
}

.flow-step h3 {
  font-size: 19px;
}

.flow-step .step-task,
.flow-step .step-output {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.flow-step .step-output {
  color: var(--ink);
}

.step-link {
  margin-top: auto;
  font-size: 14px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  align-self: flex-start;
  padding-bottom: 2px;
}

.step-link:hover {
  color: var(--copper);
}

/* 常见错误摘要 */
.pitfall-preview {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

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

.pitfall-item {
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
  border-radius: var(--radius);
  min-width: 0;
}

.pitfall-item h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.pitfall-impact,
.pitfall-fix {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.pitfall-fix {
  color: var(--forest);
}

.pitfall-fix::before {
  content: "纠正 · ";
  color: var(--copper);
  font-weight: 600;
}

/* 关于工作方式摘要 */
.about-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: 48px;
  align-items: center;
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.about-copy h2 {
  font-size: 28px;
  margin-bottom: 16px;
}

.about-copy p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

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

.about-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

/* 更新摘要 */
.updates-preview {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.updates-preview .update-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.update-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
  min-width: 0;
}

.update-item time {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--copper);
}

.update-column {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--forest);
}

.update-desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

.update-scope {
  font-size: 13px;
  color: var(--ink-soft);
}

/* 合作接洽入口条 */
.contact-cta {
  padding: 40px 36px;
  margin: 8px 0 48px;
  background-color: var(--paper-alt);
  border: 1px solid var(--forest);
  border-radius: var(--radius);
}

.contact-cta h2 {
  font-size: 26px;
  margin-bottom: 12px;
}

.contact-cta p {
  max-width: var(--read);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

/* 内页：适用场景判断表 / 服务事项对应关系 */
.scenario-table,
.service-map {
  padding-top: 24px;
}

.scenario-table .data-table,
.service-map .data-table {
  min-width: 640px;
}

.cell-demand {
  font-weight: 600;
  color: var(--forest);
  width: 26%;
}

.cell-fit {
  width: 40%;
}

.cell-prepare {
  width: 34%;
  color: var(--ink-soft);
}

/* 内页：准备清单双栏 */
.prep-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.prep-material,
.prep-talk {
  padding: 26px 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.prep-material h3,
.prep-talk h3 {
  font-size: 19px;
  margin-bottom: 18px;
}

/* 内页：站内阅读路径 */
.path-strip .path-note {
  margin-top: 20px;
  font-size: 15px;
  color: var(--ink-soft);
}

.path-strip .path-note a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
}

/* 内页：合作流程四阶段卡 */
.phase-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.phase-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-top: 2px solid var(--forest);
  border-radius: 0 0 var(--radius) var(--radius);
  min-width: 0;
}

.phase-index {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--copper);
  margin: 0;
}

.phase-name {
  font-size: 19px;
}

.phase-task,
.phase-output {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.phase-output {
  color: var(--ink);
}

.phase-link {
  margin-top: auto;
  font-size: 14px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  align-self: flex-start;
  padding-bottom: 2px;
}

.phase-link:hover {
  color: var(--copper);
}

/* 内页：阶段任务表 */
.phase-table .data-table {
  min-width: 720px;
}

.table-caption {
  text-align: left;
}

/* 内页：交付节点说明 */
.note-list {
  display: grid;
  gap: 20px;
}

.delivery-notes .note-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.note-item {
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.note-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.note-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* 内页：流程注意点 */
.flow-note-list {
  display: grid;
  gap: 16px;
}

.flow-note-list li {
  padding: 20px 24px;
  background-color: var(--paper-alt);
  border-left: 3px solid var(--copper);
  border-radius: var(--radius);
}

.flow-note-title {
  font-size: 17px;
  margin-bottom: 8px;
}

.flow-note-list p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

.flow-note-list p a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
}

/* 内页：相关入口 */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.entry-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 44px;
  transition: border-color 0.16s ease, background-color 0.16s ease;
}

.entry-card:hover {
  border-color: var(--forest);
  background-color: #fbfaf6;
}

.entry-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.entry-text {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--forest);
}

/* 内页：相关内容条 */
.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.related-links-label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--copper);
}

.related-links-item {
  font-size: 15px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 1px;
}

/* 内页：误区对照表 */
.mistake-table .data-table {
  min-width: 660px;
}

.cell-mistake {
  width: 26%;
  font-weight: 600;
  color: var(--forest);
}

.cell-impact {
  width: 36%;
  color: var(--ink-soft);
}

.cell-correct {
  width: 38%;
}

/* 内页：需求描述改写示例 */
.rewrite-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.bad-example,
.good-example {
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--paper-alt);
  min-width: 0;
}

.bad-example {
  border-left: 3px solid #a8604f;
}

.good-example {
  border-left: 3px solid var(--forest);
}

.bad-example h3,
.good-example h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.example-list {
  display: grid;
  gap: 12px;
}

.example-list li {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  padding-left: 16px;
  position: relative;
}

.example-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--copper);
}

/* 内页：范围确认检查点 */
.checkpoint-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  counter-reset: cp;
}

.checkpoint-item {
  counter-increment: cp;
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.checkpoint-item h3 {
  font-size: 17px;
  margin-bottom: 10px;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.checkpoint-item h3::before {
  content: counter(cp, decimal-leading-zero);
  font-family: var(--serif);
  font-size: 14px;
  color: var(--copper);
  flex: 0 0 auto;
}

.checkpoint-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* 内页：暂停接洽情形 */
.pause-items {
  display: grid;
  gap: 16px;
}

.pause-items li {
  padding: 22px 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
  border-radius: var(--radius);
}

.pause-items h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.pause-items p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

.pause-items p a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
}

/* 内页：协作进阶 · 沟通节奏 */
.rhythm-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.fixed-rhythm,
.node-rhythm {
  padding: 26px 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.fixed-rhythm h3,
.node-rhythm h3 {
  font-size: 19px;
  margin-bottom: 18px;
}

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

.rhythm-list li strong {
  display: block;
  font-size: 15px;
  color: var(--forest);
  margin-bottom: 4px;
}

.rhythm-list li p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* 内页：协作进阶 · 责任分工表 */
.role-table .data-table {
  min-width: 560px;
}

/* 内页：变更与反馈处理 */
.change-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  counter-reset: chg;
}

.change-steps li {
  counter-increment: chg;
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-top: 2px solid var(--forest);
  border-radius: 0 0 var(--radius) var(--radius);
  min-width: 0;
}

.change-steps h3 {
  font-size: 17px;
  margin-bottom: 10px;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.change-steps h3::before {
  content: counter(chg, decimal-leading-zero);
  font-family: var(--serif);
  font-size: 14px;
  color: var(--copper);
  flex: 0 0 auto;
}

.change-steps p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.change-steps .step-record {
  font-size: 13px;
  color: var(--copper);
  margin: 0;
}

/* 内页：交付前自查 */
.self-check .check-list {
  max-width: var(--read);
}

.self-check-note {
  margin-top: 20px;
  font-size: 15px;
  color: var(--ink-soft);
}

.self-check-note a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
}

/* 内页：协作进阶 · 相关入口 */
.related-entry .related-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.related-entry .related-links li {
  min-width: 0;
}

.related-entry .related-links a {
  display: flex;
  align-items: center;
  min-height: 56px;
  padding: 0 20px;
  font-size: 15px;
  color: var(--forest);
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.16s ease;
}

.related-entry .related-links a:hover {
  border-color: var(--forest);
  color: var(--copper);
}

/* 内页：更新记录 */
.update-list > h2 {
  margin-bottom: 12px;
}

.update-list .update-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 8px 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
  border-top: 1px solid var(--line);
}

.update-list .update-item + .update-item {
  border-top: 0;
}

.update-date {
  grid-row: span 3;
  min-width: 0;
}

.update-date time {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--forest);
  letter-spacing: 0.02em;
}

.update-body {
  min-width: 0;
}

.update-body .update-column {
  font-size: 19px;
  margin-bottom: 8px;
}

.update-body .update-column a {
  color: var(--forest);
  border-bottom: 1px solid transparent;
}

.update-body .update-column a:hover {
  color: var(--copper);
  border-bottom-color: var(--copper);
}

.update-body .update-desc {
  margin: 0 0 8px;
}

.update-body .update-scope {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.field-label {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--copper);
  margin-right: 8px;
}

/* 内页：旧说明阅读提示 */
.reading-note .note-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.reading-note .note-list li {
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.reading-note h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.reading-note p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* 内页：更新范围说明 */
.scope-list {
  display: grid;
  gap: 12px;
  max-width: var(--read);
}

.scope-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--copper);
  border-radius: 50%;
}

.scope-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 22px;
}

.scope-links a {
  font-size: 15px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 1px;
}

.scope-links a:hover {
  color: var(--copper);
}

/* 内页：关于页 */
.positioning-body {
  max-width: var(--read);
}

.positioning-body p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.about-media img {
  aspect-ratio: 16 / 9;
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.style-block {
  padding: 24px 20px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-top: 2px solid var(--forest);
  border-radius: 0 0 var(--radius) var(--radius);
  min-width: 0;
}

.style-block h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.style-block p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

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

.principle-item {
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
  border-radius: var(--radius);
  min-width: 0;
}

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

.principle-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 32px;
}

.boundary-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.boundary-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--copper);
}

.relation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.relation-item {
  padding: 22px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.relation-item h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.relation-item h3 a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 1px;
}

.relation-item h3 a:hover {
  color: var(--copper);
}

.relation-item p {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.relation-note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* 内页：合作接洽 */
.prep-items {
  display: grid;
  gap: 16px;
  counter-reset: prep;
}

.prep-item {
  counter-increment: prep;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.prep-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--copper);
  color: var(--copper);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
}

.prep-index::before {
  content: counter(prep, decimal-leading-zero);
}

.prep-body {
  min-width: 0;
}

.prep-body h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.prep-body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

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

.fit-cases,
.not-fit-cases {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-alt);
  min-width: 0;
}

.fit-cases {
  border-left: 3px solid var(--forest);
}

.not-fit-cases {
  border-left: 3px solid var(--copper);
}

.fit-cases h3,
.not-fit-cases h3 {
  font-size: 19px;
  margin-bottom: 18px;
}

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

.case-list li h4 {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--forest);
  margin: 0 0 4px;
}

.case-list li p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

.contact-path .path-step h3 a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 1px;
}

.contact-path .path-step h3 a:hover {
  color: var(--copper);
}

.path-tail {
  margin-top: 20px;
  font-size: 15px;
  color: var(--ink-soft);
}

.path-tail a {
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
}

.contact-note .note-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-note .note-list li {
  padding: 24px;
  background-color: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.contact-note .note-list h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.contact-note .note-list p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* 404 */
.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 72px 24px 88px;
  width: 100%;
}

.error-panel {
  max-width: 680px;
}

.error-code {
  font-family: var(--serif);
  font-size: 64px;
  line-height: 1;
  color: var(--copper);
  margin: 0 0 16px;
}

.error-panel h1 {
  font-size: 36px;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.error-action {
  margin: 0;
}

.error-action .btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: var(--radius);
  background-color: var(--forest);
  color: #fff;
  border: 1px solid var(--forest);
}

.error-action .btn-primary:hover {
  background-color: var(--forest-deep);
  color: #fff;
}

.error-links {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.error-links h2 {
  font-size: 22px;
  margin-bottom: 18px;
}

.error-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.error-link-list a {
  font-size: 15px;
  color: var(--forest);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 1px;
}

.error-link-list a:hover {
  color: var(--copper);
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .hero {
    gap: 36px;
  }

  .hero h1 {
    font-size: 38px;
  }

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

  .service-card-feature {
    grid-column: span 2;
  }

  .flow-steps,
  .phase-cards,
  .style-grid,
  .relation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pitfall-list,
  .delivery-notes .note-list,
  .contact-note .note-list,
  .principle-list,
  .change-steps,
  .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 32px;
  }

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

@media (max-width: 900px) {
  .header-inner {
    height: 64px;
    padding: 0 20px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background-color: var(--paper-alt);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(31, 58, 52, 0.08);
    padding: 8px 20px 16px;
  }

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

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

  .nav-list li {
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-list li:last-child {
    border-bottom: 0;
  }

  .nav-list a {
    min-height: 48px;
    font-size: 16px;
    width: 100%;
  }

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

  .nav-list a.is-current {
    color: var(--copper);
  }

  .nav-scroll {
    display: flex;
    padding: 0 20px 12px;
    -webkit-mask-image: linear-gradient(to right, #000 82%, transparent 100%);
    mask-image: linear-gradient(to right, #000 82%, transparent 100%);
  }

  .home-main,
  .inner-main {
    padding-left: 20px;
    padding-right: 20px;
  }

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

  .hero-copy {
    max-width: none;
  }

  .hero h1 {
    font-size: 34px;
  }

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

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

  .about-media {
    order: 2;
  }

  .prep-columns,
  .rhythm-columns,
  .rewrite-columns,
  .fit-columns,
  .reading-note .note-list,
  .boundary-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-title {
    font-size: 36px;
  }

  .update-list .update-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .update-date {
    grid-row: auto;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    padding: 44px 20px 32px;
  }

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

  .footer-copyright {
    padding: 16px 20px 24px;
  }
}

@media (max-width: 760px) {
  body {
    font-size: 15.5px;
  }

  .page-title {
    font-size: 32px;
  }

  .inner-main > section > h2,
  .section-head h2,
  .hero-table h2,
  .service-grid h2,
  .flow-preview h2,
  .pitfall-preview h2,
  .updates-preview h2,
  .about-copy h2,
  .contact-cta h2 {
    font-size: 24px;
  }

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

  .hero-lead {
    font-size: 15.5px;
  }

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

  .service-cards,
  .flow-steps,
  .phase-cards,
  .pitfall-list,
  .delivery-notes .note-list,
  .contact-note .note-list,
  .principle-list,
  .change-steps,
  .entry-grid,
  .style-grid,
  .relation-grid,
  .checkpoint-list,
  .related-entry .related-links,
  .path-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .service-card-feature {
    grid-column: auto;
  }

  /* 首页首屏信息表：移动端字段堆叠 */
  .data-table[role="table"] {
    border: 0;
    background-color: transparent;
    overflow: visible;
  }

  .data-head {
    display: none;
  }

  .data-row {
    display: block;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background-color: var(--paper-alt);
    margin-bottom: 12px;
    overflow: hidden;
  }

  .data-row:last-child {
    margin-bottom: 0;
  }

  .data-row > div {
    padding: 12px 16px;
    border-right: 0;
    border-left: 0;
    word-break: break-word;
  }

  .data-row .field {
    background-color: var(--paper);
    border-bottom: 1px solid var(--line-soft);
    font-size: 14px;
  }

  .data-row .entry {
    border-top: 1px solid var(--line-soft);
    background-color: #fbfaf6;
  }

  /* 内页表格：外层横向滚动，不撑破视口 */
  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .scenario-table .data-table,
  .service-map .data-table,
  .mistake-table .data-table,
  .phase-table .data-table,
  .role-table .data-table {
    min-width: 0;
    font-size: 14px;
  }

  .data-table thead th,
  .data-table tbody th,
  .data-table tbody td {
    padding: 12px 12px;
  }

  .data-table thead th {
    font-size: 12px;
    white-space: normal;
  }

  .cell-demand,
  .cell-mistake {
    width: 30%;
  }

  .cell-fit,
  .cell-impact {
    width: 34%;
  }

  .cell-prepare,
  .cell-correct {
    width: 36%;
  }

  .prep-item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 14px;
    padding: 18px 18px;
  }

  .prep-index {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .contact-cta {
    padding: 28px 22px;
    margin-bottom: 36px;
  }

  .contact-cta .btn {
    width: 100%;
  }

  .guide-media,
  .workflow-media,
  .pitfall-media,
  .advanced-media,
  .updates-media,
  .contact-media {
    margin: 32px 0;
  }

  .guide-media img,
  .workflow-media img,
  .pitfall-media img,
  .advanced-media img,
  .updates-media img,
  .contact-media img,
  .about-media img {
    aspect-ratio: 4 / 3;
  }

  .faq-item summary {
    font-size: 16px;
    padding: 16px 18px;
  }

  .faq-answer {
    padding: 0 18px 18px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 40px 20px 28px;
  }

  .footer-brand,
  .footer-boundary {
    grid-column: auto;
  }

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

  .error-main {
    padding: 48px 20px 64px;
  }

  .error-code {
    font-size: 52px;
  }

  .error-panel h1 {
    font-size: 28px;
  }
}

@media (max-width: 400px) {
  .header-inner,
  .nav-scroll,
  .home-main,
  .inner-main,
  .footer-inner,
  .footer-copyright {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero h1 {
    font-size: 27px;
  }

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

  .brand {
    font-size: 20px;
  }

  .data-table thead th,
  .data-table tbody th,
  .data-table tbody td {
    padding: 10px 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 程序验收反馈：移动端防溢出 */
@media (max-width: 768px) {
  .site-main,
  .site-main * {
    min-width: 0;
    max-width: 100%;
  }

  .site-main :is(h1, h2, h3, h4, p, a, span) {
    overflow-wrap: anywhere;
  }
}