/* input: 全站页面结构、协同总控图视觉系统与响应式需求 */
/* output: 工程纸色彩、工作台布局、组件状态和可访问动效 */
/* pos: public/assets/css 全站样式入口，影响所有页面表现 */
:root {
  --paper: #f2f0ea;
  --paper-strong: #fbfaf6;
  --paper-deep: #e7e4dc;
  --ink: #171b1e;
  --ink-soft: #333a3d;
  --ink-muted: #5e6665;
  --control: #1d5a47;
  --control-strong: #124334;
  --exception: #d8593d;
  --review: #d5aa52;
  --line: #c9c5ba;
  --line-strong: #9e9b93;
  --dark: #171b1e;
  --dark-soft: #22282a;
  --dark-line: #3e4748;
  --white: #fffef9;
  --page-accent: var(--control);
  --content-width: 1240px;
  --section-space: 112px;
  --radius: 8px;
  --shadow: 0 20px 52px rgba(23, 27, 30, 0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans SC", "Microsoft YaHei", "DengXian", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0;
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  width: calc(var(--scroll-progress, 0) * 100%);
  height: 3px;
  background: var(--exception);
  pointer-events: none;
}

body.theme-legal {
  --page-accent: #334c63;
}

body.theme-manufacturing {
  --page-accent: #b55434;
}

body.theme-ai,
body.theme-contact {
  --page-accent: var(--control);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: 0;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

::selection {
  color: var(--white);
  background: var(--control);
}

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

.container {
  width: min(var(--content-width), calc(100% - 64px));
  margin-inline: auto;
}

.section,
.hero,
.page-hero {
  position: relative;
  overflow: clip;
}

.section {
  padding: var(--section-space) 0;
  border-top: 1px solid var(--line);
}

.section-alt {
  background: var(--paper-deep);
}

.section-dark,
.page-hero.theme-dark {
  color: var(--paper-strong);
  background: var(--dark);
  border-color: var(--dark-line);
}

.section-tight {
  padding-block: 54px;
}

.section-header {
  max-width: 780px;
  margin: 0 0 48px;
}

.section-header-centered {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: none;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 18px;
  color: var(--ink);
  font-family: "Noto Sans SC", "Microsoft YaHei", "DengXian", sans-serif;
  font-weight: 760;
  line-height: 1.14;
  letter-spacing: 0;
  text-wrap: balance;
}

h1 {
  max-width: 12em;
  font-size: 64px;
  line-height: 1.08;
}

h2 {
  font-size: 42px;
}

h3 {
  font-size: 20px;
  line-height: 1.35;
}

h4 {
  font-size: 17px;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.page-hero.theme-dark h1,
.page-hero.theme-dark h2,
.page-hero.theme-dark h3,
.page-hero.theme-dark h4,
.visual-panel-dark h1,
.visual-panel-dark h2,
.visual-panel-dark h3,
.visual-panel-dark h4,
.deep-panel h1,
.deep-panel h2,
.deep-panel h3,
.deep-panel h4 {
  color: var(--paper-strong);
}

p {
  max-width: 72ch;
  margin: 0 0 18px;
  color: var(--ink-soft);
}

.section-dark p,
.section-dark li,
.page-hero.theme-dark p,
.page-hero.theme-dark li,
.visual-panel-dark p,
.visual-panel-dark li,
.deep-panel p,
.deep-panel li {
  color: #cbd1cc;
}

.lead {
  max-width: 58ch;
  font-size: 19px;
  line-height: 1.78;
}

.text-muted {
  color: var(--ink-muted);
}

.stack-sm > * + * {
  margin-top: 12px;
}

.stack-md > * + * {
  margin-top: 18px;
}

.stack-lg > * + * {
  margin-top: 28px;
}

.accent-line {
  width: 112px;
  height: 5px;
  margin: 24px 0 30px;
  background: var(--exception);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  font-weight: 700;
  line-height: 1.2;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--control);
  border-color: var(--control);
}

.button-primary:hover {
  background: var(--control-strong);
  border-color: var(--control-strong);
}

.button-primary:disabled {
  color: #d4d7d3;
  background: #6b7471;
  border-color: #6b7471;
  transform: none;
}

.button-secondary {
  color: var(--ink);
  background: transparent;
}

.button-secondary:hover {
  color: var(--white);
  background: var(--ink);
}

.section-dark .button-secondary,
.page-hero.theme-dark .button-secondary {
  color: var(--paper-strong);
  border-color: #9ca5a2;
}

.section-dark .button-secondary:hover,
.page-hero.theme-dark .button-secondary:hover {
  color: var(--ink);
  background: var(--paper-strong);
  border-color: var(--paper-strong);
}

.button:focus-visible,
.mobile-nav-toggle:focus-visible,
.hero-switcher-tab:focus-visible,
.story-switcher-tab:focus-visible,
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible,
a:focus-visible {
  outline: 3px solid var(--review);
  outline-offset: 3px;
}

.badge-row,
.meta-row,
.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.badge,
.meta-pill,
.pill-list li {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 5px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--ink-soft);
  background: rgba(255, 254, 249, 0.34);
  font-size: 13px;
  font-weight: 650;
}

.section-dark .badge,
.section-dark .meta-pill,
.section-dark .pill-list li,
.page-hero.theme-dark .badge,
.page-hero.theme-dark .meta-pill {
  color: #d8ddd8;
  background: transparent;
  border-color: var(--dark-line);
}

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  background: rgba(242, 240, 234, 0.96);
  border-bottom: 1px solid var(--line);
}

.site-header::before {
  content: "项目状态 / 可诊断 · 可试点 · 可私有部署";
  display: block;
  height: 25px;
  padding-right: max(32px, calc((100vw - var(--content-width)) / 2));
  color: #dbe0dc;
  background: var(--ink);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
  line-height: 25px;
  text-align: right;
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 68px;
  gap: 28px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 10px;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--paper-strong);
  background: var(--ink);
  border-radius: 2px;
  font-family: "Noto Serif SC", "SimSun", serif;
  font-size: 19px;
  line-height: 1;
}

.brand {
  font-size: 17px;
  font-weight: 800;
}

.site-nav {
  display: flex;
  align-items: stretch;
  align-self: stretch;
  gap: 2px;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-bottom: 3px solid transparent;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 650;
  transition: color 160ms ease, border-color 160ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--ink);
  border-bottom-color: var(--exception);
}

.header-cta {
  flex: 0 0 auto;
  min-height: 40px;
  padding-inline: 16px;
  font-size: 14px;
}

.mobile-nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: transparent;
}

.mobile-nav-toggle span,
.mobile-nav-toggle span::before,
.mobile-nav-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  margin: auto;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.mobile-nav-toggle span {
  position: relative;
}

.mobile-nav-toggle span::before,
.mobile-nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.mobile-nav-toggle span::before {
  top: -6px;
}

.mobile-nav-toggle span::after {
  top: 6px;
}

.site-header.is-open .mobile-nav-toggle span {
  background: transparent;
}

.site-header.is-open .mobile-nav-toggle span::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header.is-open .mobile-nav-toggle span::after {
  top: 0;
  transform: rotate(-45deg);
}

.hero {
  min-height: calc(100vh - 93px);
  padding: 0 0 48px;
  color: var(--paper-strong);
  background: #202725;
  border-bottom: 1px solid var(--line);
}

.hero-scene {
  position: absolute;
  z-index: 0;
  inset: 0;
}

.hero-scene::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(90deg, rgba(14, 17, 19, 0.94) 0%, rgba(14, 17, 19, 0.81) 42%, rgba(14, 17, 19, 0.24) 72%, rgba(14, 17, 19, 0.16) 100%);
}

.hero-scene::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(0deg, rgba(14, 17, 19, 0.72) 0%, transparent 42%);
}

.hero-scene img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 48%;
}

.hero-grid,
.page-hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(520px, 1.12fr);
  align-items: center;
  gap: 72px;
}

.hero .hero-grid {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 93px - 190px);
  padding-block: 64px;
}

.hero .hero-copy {
  position: relative;
  z-index: 2;
}

.hero .hero-copy h1 {
  color: var(--paper-strong);
  text-shadow: 0 3px 20px rgba(0, 0, 0, 0.32);
}

.hero .hero-copy .lead {
  color: #e2e6e1;
}

.hero .hero-copy .button-secondary {
  color: var(--paper-strong);
  border-color: #c0c7c2;
}

.hero .hero-copy .button-secondary:hover {
  color: var(--ink);
  background: var(--paper-strong);
}

.hero .hero-copy .badge {
  color: #e2e6e1;
  background: rgba(23, 27, 30, 0.54);
  border-color: #747d78;
}

.hero .hero-visual {
  align-self: end;
  margin-bottom: -136px;
  transform: translateY(76px);
}

.hero-copy .lead,
.page-hero .lead {
  margin-bottom: 30px;
}

.hero-copy .badge-row,
.page-hero .badge-row {
  margin-top: 26px;
}

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

.visual-stack {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.visual-stack::before {
  content: "业务协同总图 / CURRENT PLAN";
  display: block;
  height: 35px;
  padding: 0 14px;
  color: var(--paper-strong);
  background: var(--ink);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
  line-height: 35px;
}

.visual-panel {
  position: relative;
  padding: 24px;
  color: var(--ink);
  background: var(--paper);
}

.visual-panel + .visual-panel {
  border-top: 1px solid var(--ink);
}

.visual-panel-dark {
  color: var(--paper-strong);
  background: var(--dark-soft);
}

.visual-panel h3,
.page-hero-panel h3 {
  margin-bottom: 20px;
  font-size: 21px;
}

.card-eyebrow {
  display: block;
  margin-bottom: 9px;
  color: var(--page-accent);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
  font-weight: 700;
}

.visual-panel-dark .card-eyebrow,
.deep-panel .card-eyebrow,
.section-dark .card-eyebrow {
  color: #e7c46a;
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
}

.mini-card {
  min-height: 82px;
  padding: 13px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.mini-card strong,
.mini-card span {
  display: block;
}

.mini-card strong {
  margin-bottom: 4px;
  font-size: 14px;
}

.mini-card span {
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.55;
}

.flow-dots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 20px;
  border: 1px solid var(--dark-line);
}

.flow-dots span {
  position: relative;
  min-height: 52px;
  padding: 11px 8px 9px 28px;
  border-right: 1px solid var(--dark-line);
  color: #e0e5df;
  font-size: 11px;
  line-height: 1.35;
}

.flow-dots span:last-child {
  border-right: 0;
}

.flow-dots span::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 11px;
  width: 7px;
  height: 7px;
  border: 2px solid var(--review);
  border-radius: 50%;
}

.hero-switcher,
.story-switcher {
  border: 1px solid var(--dark-line);
}

.story-switcher {
  border-color: var(--line-strong);
}

.hero-switcher-tabs,
.story-switcher-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--dark-line);
}

.story-switcher-tabs {
  border-color: var(--line-strong);
}

.hero-switcher-tab,
.story-switcher-tab {
  min-height: 40px;
  padding: 8px 10px;
  border: 0;
  border-right: 1px solid var(--dark-line);
  color: #bfc7c2;
  background: transparent;
  font-size: 12px;
  font-weight: 700;
}

.story-switcher-tab {
  color: var(--ink-muted);
  border-color: var(--line-strong);
}

.hero-switcher-tab:last-child,
.story-switcher-tab:last-child {
  border-right: 0;
}

.hero-switcher-tab.is-active {
  color: var(--ink);
  background: var(--review);
}

.story-switcher-tab.is-active {
  color: var(--white);
  background: var(--page-accent);
}

.hero-switcher-panel,
.story-switcher-panel {
  padding: 15px;
}

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

.hero-switcher-card strong,
.hero-switcher-card span {
  display: block;
}

.hero-switcher-card strong {
  margin-bottom: 4px;
  color: var(--paper-strong);
  font-size: 12px;
}

.hero-switcher-card span {
  color: #adb7b1;
  font-size: 11px;
  line-height: 1.55;
}

.trust-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  /* 需让开 .hero-visual 出血：136px 负边距 + 76px 下移 - 64px 网格下内边距 = 148px，再加 40px 间距 */
  margin-top: 188px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-strip .badge {
  justify-content: center;
  min-height: 46px;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: #dce2dd;
  border-color: #616966;
}

.trust-strip .badge:last-child {
  border-right: 0;
}

.justify-center {
  justify-content: center;
}

.page-hero {
  padding: 82px 0;
  background: var(--paper-strong);
  border-bottom: 1px solid var(--line);
}

.page-hero > .container > .section-header {
  margin-bottom: 0;
  padding: 46px 0 18px;
}

.page-hero-panel {
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-hero-panel::before {
  content: "CONTROL BOARD";
  display: block;
  margin: -28px -28px 26px;
  padding: 9px 13px;
  color: var(--paper-strong);
  background: var(--ink);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
}

.theme-dark .page-hero-panel {
  background: var(--dark-soft);
  border-color: #77817e;
}

.theme-dark .page-hero-panel::before {
  color: var(--ink);
  background: var(--review);
}

.metric-list,
.compact-meta {
  display: grid;
  border-top: 1px solid var(--line-strong);
}

.theme-dark .metric-list,
.deep-panel .compact-meta {
  border-color: var(--dark-line);
}

.metric-item,
.compact-meta > div {
  display: grid;
  grid-template-columns: minmax(130px, 0.42fr) 1fr;
  gap: 20px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line-strong);
}

.theme-dark .metric-item,
.deep-panel .compact-meta > div {
  border-color: var(--dark-line);
}

.metric-item strong,
.compact-meta strong {
  color: var(--ink);
}

.theme-dark .metric-item strong,
.deep-panel .compact-meta strong {
  color: var(--paper-strong);
}

.metric-item span,
.compact-meta span {
  color: var(--ink-muted);
  font-size: 14px;
}

.theme-dark .metric-item span,
.deep-panel .compact-meta span {
  color: #bbc3be;
}

.grid-2,
.grid-3,
.grid-4,
.summary-grid,
.contact-grid,
.form-shell,
.split-layout,
.footer-grid,
.story-switcher-metrics {
  display: grid;
  gap: 18px;
}

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

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

.grid-4,
.summary-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split-layout {
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  align-items: start;
  gap: 72px;
}

.split-layout-even,
.form-shell {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.summary-item,
.contact-card,
.faq-item,
.note-box,
.quote-box,
.form-panel,
.info-panel,
.deep-panel,
.empty-card {
  position: relative;
  padding: 28px;
  background: var(--paper-strong);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.card,
.summary-item,
.contact-card {
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.card:hover,
.summary-item:hover,
.contact-card:hover {
  z-index: 1;
  border-color: var(--ink);
  box-shadow: 0 16px 36px rgba(23, 27, 30, 0.1);
  transform: translateY(-4px);
}

.section-dark .card,
.section-dark .summary-item,
.section-dark .contact-card {
  background: var(--dark-soft);
  border-color: var(--dark-line);
}

.section-dark .card:hover,
.section-dark .summary-item:hover,
.section-dark .contact-card:hover {
  border-color: #838d89;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
}

.card::after,
.summary-item::after,
.contact-card::after {
  content: "";
  position: absolute;
  top: -1px;
  right: 18px;
  width: 28px;
  height: 4px;
  background: var(--page-accent);
}

.accent-card::after,
.highlight::after {
  background: var(--exception);
}

.card-number {
  display: none;
}

.card-link {
  display: inline-flex;
  margin-top: 8px;
  padding-bottom: 3px;
  color: var(--control);
  border-bottom: 1px solid currentColor;
  font-weight: 750;
}

.industry-card {
  min-height: 260px;
  padding-top: 42px;
}

.industry-card::before {
  content: "行业工作面";
  position: absolute;
  top: 12px;
  left: 28px;
  color: var(--ink-muted);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 10px;
}

.industry-card.legal {
  --page-accent: #334c63;
}

.industry-card.manufacturing {
  --page-accent: #b55434;
}

.industry-card.engineering {
  --page-accent: var(--control);
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--ink);
  background: var(--paper-strong);
}

.signal-card {
  position: relative;
  min-height: 118px;
  padding: 22px 24px 22px 46px;
  border-right: 1px solid var(--ink);
}

.signal-card:last-child {
  border-right: 0;
}

.signal-card::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 20px;
  width: 10px;
  height: 10px;
  background: var(--exception);
}

.signal-card strong,
.signal-card span {
  display: block;
}

.signal-card strong {
  margin-bottom: 7px;
}

.signal-card span {
  color: var(--ink-muted);
  font-size: 14px;
}

.timeline,
.flow-band {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line-strong);
  background: var(--paper-strong);
}

.timeline-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.timeline-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.timeline-7,
.flow-band-7 {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.timeline-step,
.flow-stage {
  position: relative;
  min-height: 206px;
  padding: 70px 22px 24px;
  border-right: 1px solid var(--line-strong);
  background: transparent;
}

.timeline-step:last-child,
.flow-stage:last-child {
  border-right: 0;
}

.timeline-step::before,
.flow-stage .step-tag {
  position: absolute;
  top: 22px;
  left: 22px;
  display: grid;
  min-width: 32px;
  height: 27px;
  padding-inline: 7px;
  place-items: center;
  color: var(--white);
  background: var(--control);
  border-radius: 2px;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
}

.timeline-step::before {
  content: attr(data-step);
}

.timeline-step::after,
.flow-stage::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 34px;
  right: -5px;
  width: 8px;
  height: 8px;
  background: var(--review);
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.timeline-step:last-child::after,
.flow-stage:last-child::after {
  display: none;
}

.timeline-step h3,
.flow-stage h3 {
  font-size: 17px;
}

.timeline-step p,
.flow-stage p {
  font-size: 14px;
}

.flow-stage.highlight {
  background: #e4eee9;
}

.section-dark .timeline,
.section-dark .flow-band {
  background: var(--dark-soft);
  border-color: var(--dark-line);
}

.section-dark .timeline-step,
.section-dark .flow-stage {
  border-color: var(--dark-line);
}

.summary-item strong,
.summary-item span {
  display: block;
}

.summary-item strong {
  margin-bottom: 7px;
  font-size: 15px;
}

.summary-item span {
  color: var(--ink-muted);
  font-size: 14px;
}

.note-box,
.quote-box {
  margin-top: 18px;
  background: #e6ece8;
  border-color: #aab9b1;
}

.quote-box {
  padding: 34px;
}

.quote-box p {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Serif SC", "SimSun", serif;
  font-size: 24px;
  line-height: 1.65;
}

.deep-panel {
  color: var(--paper-strong);
  background: var(--dark-soft);
  border-color: var(--dark-line);
  box-shadow: var(--shadow);
}

.check-list,
.content-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li,
.content-list li {
  position: relative;
  padding: 13px 0 13px 27px;
  border-bottom: 1px solid var(--line);
}

.check-list li::before,
.content-list li::before {
  content: "";
  position: absolute;
  top: 21px;
  left: 2px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--control);
}

.section-dark .check-list li,
.section-dark .content-list li,
.deep-panel .check-list li,
.deep-panel .content-list li {
  border-color: var(--dark-line);
}

.section-dark .check-list li::before,
.section-dark .content-list li::before,
.deep-panel .check-list li::before,
.deep-panel .content-list li::before {
  border-color: var(--review);
}

.story-switcher-summary {
  display: grid;
  gap: 16px;
}

.story-switcher-board {
  min-height: 124px;
  padding: 24px;
  color: var(--paper-strong);
  background: var(--ink);
}

.story-switcher-board p {
  margin: 0;
  color: #e0e4df;
}

.story-switcher-metrics {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
}

.story-metric {
  padding: 14px;
  border-right: 1px solid var(--line);
}

.story-metric:last-child {
  border-right: 0;
}

.story-metric strong,
.story-metric span {
  display: block;
}

.story-metric strong {
  margin-bottom: 4px;
  color: var(--ink-muted);
  font-size: 11px;
}

.story-metric span {
  font-size: 14px;
  font-weight: 700;
}

.form-shell {
  gap: 28px;
  align-items: start;
}

.form-panel,
.info-panel {
  padding: 36px;
}

.field-grid {
  display: grid;
  gap: 18px;
}

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

.field {
  display: grid;
  gap: 7px;
}

.field label {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
}

.field textarea {
  min-height: 132px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #6f7673;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--control);
}

.form-note {
  color: var(--ink-muted);
  font-size: 13px;
}

.status-box {
  padding: 14px 16px;
  color: var(--ink-soft);
  background: var(--paper-deep);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  font-size: 13px;
}

.status-box.is-success {
  color: #123b2d;
  background: #dfece5;
  border-color: #739c89;
}

.status-box.is-error {
  color: #6b2518;
  background: #f7e4de;
  border-color: #d78772;
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

.faq-item {
  border-width: 0 0 1px;
  border-radius: 0;
  background: transparent;
}

/* 收起状态的 FAQ 答案不占布局，避免与下一条问题重叠 */
.faq-item:not([open]) > p {
  display: none;
}

.contact-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 32px 70px;
  padding: 56px;
  color: var(--paper-strong);
  background: var(--dark-soft);
  border: 1px solid var(--dark-line);
}

.cta-band h2,
.cta-band p {
  grid-column: 1;
}

.cta-band .button-row {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
}

.site-footer {
  padding: 74px 0 28px;
  color: #d9ded9;
  background: #0e1113;
  border-top: 4px solid var(--exception);
}

.footer-grid {
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
}

.footer-title {
  margin-bottom: 14px;
  color: var(--paper-strong);
  font-weight: 800;
}

.site-footer p,
.footer-links a,
.footer-links span {
  color: #aeb7b1;
  font-size: 14px;
}

.footer-links {
  display: grid;
  gap: 8px;
}

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

.footer-bottom {
  margin-top: 52px;
  padding-top: 20px;
  color: #7f8984;
  border-top: 1px solid #2e3536;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
}

.empty-state {
  display: grid;
  min-height: 100vh;
  padding: 32px;
  place-items: center;
  background: var(--paper);
}

.empty-card {
  width: min(620px, 100%);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow);
}

.empty-card .button-row {
  justify-content: center;
}

[hidden] {
  display: none !important;
}

.hero-switcher-panel.is-active,
.story-switcher-panel.is-active {
  animation: panel-in 420ms var(--ease) both;
}

.js-enhanced .reveal-item {
  opacity: 1;
  filter: none;
  transform: none;
}

.js-enhanced .reveal-item.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

@keyframes panel-in {
  from {
    opacity: 0;
    clip-path: inset(0 100% 0 0);
  }
  to {
    opacity: 1;
    clip-path: inset(0 0 0 0);
  }
}

@media (max-width: 1180px) {
  :root {
    --section-space: 90px;
  }

  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 36px;
  }

  .hero-grid,
  .page-hero-shell {
    grid-template-columns: minmax(0, 0.8fr) minmax(460px, 1.2fr);
    gap: 40px;
  }

  .site-nav {
    gap: 0;
  }

  .site-nav a {
    padding-inline: 7px;
  }

  .header-cta {
    display: none;
  }

  .grid-4,
  .summary-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline,
  .timeline-5,
  .timeline-7,
  .flow-band,
  .flow-band-7 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .timeline-step:nth-child(3n),
  .flow-stage:nth-child(3n) {
    border-right: 0;
  }

  .timeline-step:nth-child(n + 4),
  .flow-stage:nth-child(n + 4) {
    border-top: 1px solid var(--line-strong);
  }

  .timeline-step:nth-child(3n)::after,
  .flow-stage:nth-child(3n)::after {
    display: none;
  }
}

@media (max-width: 900px) {
  :root {
    --section-space: 74px;
  }

  .container {
    width: min(var(--content-width), calc(100% - 40px));
  }

  .site-header::before {
    padding-right: 20px;
    font-size: 10px;
  }

  .header-inner {
    min-height: 62px;
  }

  .mobile-nav-toggle {
    display: grid;
    place-items: center;
    margin-left: auto;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    flex-direction: column;
    padding: 10px 20px 18px;
    background: var(--paper-strong);
    border-bottom: 1px solid var(--ink);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  .site-nav a {
    min-height: 46px;
    padding: 0 4px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a.is-active {
    border-bottom-color: var(--exception);
  }

  .hero,
  .page-hero {
    padding-block: 66px;
  }

  .hero {
    min-height: auto;
    padding-bottom: 42px;
  }

  .hero .hero-grid {
    min-height: 0;
    padding-block: 66px 10px;
  }

  .hero .hero-visual {
    margin-bottom: 0;
    transform: none;
  }

  .hero-scene::before {
    background: linear-gradient(180deg, rgba(14, 17, 19, 0.9) 0%, rgba(14, 17, 19, 0.78) 48%, rgba(14, 17, 19, 0.84) 100%);
  }

  .hero-grid,
  .page-hero-shell,
  .split-layout,
  .split-layout-even,
  .form-shell,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid,
  .page-hero-shell,
  .split-layout {
    gap: 48px;
  }

  .grid-3,
  .signal-band {
    grid-template-columns: 1fr;
  }

  .signal-card {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .signal-card:last-child {
    border-bottom: 0;
  }

  .cta-band {
    grid-template-columns: 1fr;
    padding: 40px;
  }

  .cta-band .button-row {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 640px) {
  :root {
    --section-space: 62px;
  }

  .container {
    width: min(var(--content-width), calc(100% - 28px));
  }

  body {
    font-size: 15px;
  }

  .site-header::before {
    content: "状态 / 可诊断 · 可试点 · 可私有部署";
    height: 23px;
    line-height: 23px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 17px;
  }

  .brand {
    font-size: 15px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 31px;
  }

  h3 {
    font-size: 18px;
  }

  .lead {
    font-size: 17px;
  }

  .hero,
  .page-hero {
    padding-block: 52px;
  }

  .hero {
    padding-block: 0 32px;
  }

  .hero .hero-grid {
    padding-top: 52px;
  }

  .hero-grid,
  .page-hero-shell,
  .split-layout {
    gap: 36px;
  }

  .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .visual-panel,
  .page-hero-panel,
  .card,
  .summary-item,
  .contact-card,
  .form-panel,
  .info-panel,
  .deep-panel,
  .empty-card {
    padding: 22px;
  }

  .page-hero-panel::before {
    margin: -22px -22px 22px;
  }

  .visual-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .summary-grid,
  .contact-grid,
  .field-grid-2,
  .story-switcher-metrics,
  .timeline,
  .timeline-4,
  .timeline-5,
  .timeline-7,
  .flow-band,
  .flow-band-7 {
    grid-template-columns: 1fr;
  }

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

  .flow-dots span:nth-child(2) {
    border-right: 0;
  }

  .flow-dots span:nth-child(-n + 2) {
    border-bottom: 1px solid var(--dark-line);
  }

  .hero-switcher-tabs,
  .story-switcher-tabs {
    grid-template-columns: 1fr;
  }

  .hero-switcher-tab,
  .story-switcher-tab {
    border-right: 0;
    border-bottom: 1px solid var(--dark-line);
  }

  .story-switcher-tab {
    border-color: var(--line-strong);
  }

  .hero-switcher-tab:last-child,
  .story-switcher-tab:last-child {
    border-bottom: 0;
  }

  .hero-switcher-grid {
    grid-template-columns: 1fr;
  }

  .trust-strip {
    grid-template-columns: 1fr;
  }

  .trust-strip .badge {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-strip .badge:last-child {
    border-bottom: 0;
  }

  .timeline-step,
  .flow-stage {
    min-height: 0;
    padding: 64px 22px 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .timeline-step:nth-child(n + 4),
  .flow-stage:nth-child(n + 4) {
    border-top: 0;
  }

  .timeline-step:last-child,
  .flow-stage:last-child {
    border-bottom: 0;
  }

  .timeline-step::after,
  .flow-stage::after,
  .timeline-step:nth-child(3n)::after,
  .flow-stage:nth-child(3n)::after {
    top: auto;
    right: auto;
    bottom: -5px;
    left: 34px;
    display: block;
  }

  .timeline-step:last-child::after,
  .flow-stage:last-child::after {
    display: none;
  }

  .metric-item,
  .compact-meta > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .story-metric {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .story-metric:last-child {
    border-bottom: 0;
  }

  .cta-band {
    padding: 28px;
  }

  .quote-box p {
    font-size: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js-enhanced .reveal-item,
  .js-enhanced .reveal-item.is-visible {
    opacity: 1;
    filter: none;
    transform: none;
  }
}

/* ============================================================
   2026-09 高级感升级：编号章节、关于/FAQ、深色纹理与移动端 sticky CTA
   ============================================================ */

/* 章节编号与标签 */
.section-index {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-family: "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--review);
}

.section-index::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--review);
}

.section-kicker {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--ink-muted);
}

/* 首屏：kicker 与 CTA 说明 */
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  padding: 7px 14px;
  border: 1px solid rgba(242, 240, 234, 0.32);
  border-radius: 2px;
  background: rgba(14, 17, 19, 0.38);
  font-family: "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: #dfe5e0;
}

.cta-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: #b8c0ba;
}

/* 深色区细网格纹理 */
.section-dark,
.page-hero.theme-dark {
  position: relative;
  overflow: clip;
}

.hero::before,
.section-dark::before,
.page-hero.theme-dark::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  background-image:
    linear-gradient(rgba(242, 240, 234, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 240, 234, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.hero::before {
  z-index: 1;
}

.section-dark > .container,
.page-hero > .container {
  position: relative;
  z-index: 1;
}

/* 关于板块 */
.about-lead {
  max-width: 62ch;
  margin: 0 0 40px;
}

.about-section .quote-box {
  margin: 0 0 28px;
  padding: 30px 32px;
}

/* FAQ */
.faq-list {
  max-width: 880px;
}

.faq-item {
  background: transparent;
}

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 58px;
  cursor: pointer;
  font-weight: 700;
  font-size: 17px;
  list-style: none;
}

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

.faq-item summary::before {
  content: "+";
  flex: none;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-family: "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 16px;
  color: var(--control);
  transition: transform 180ms var(--ease), background-color 180ms ease, color 180ms ease;
}

.faq-item[open] summary::before {
  content: "–";
  background: var(--control);
  border-color: var(--control);
  color: var(--paper-strong);
}

.faq-item p {
  margin: 0 0 22px 40px;
  max-width: 62ch;
  color: var(--ink-soft);
}

/* 卡片微交互：轻微抬升 */
.card:hover,
.summary-item:hover,
.contact-card:hover {
  transform: translateY(-3px);
}

/* 卡片链接下划线动效 */
.card-link {
  position: relative;
  display: inline-block;
}

.card-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0.35);
  transform-origin: left;
  opacity: 0.5;
  transition: transform 220ms var(--ease), opacity 220ms ease;
}

.card-link:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

/* CTA 横幅：文字包裹层 */
.cta-band > div {
  grid-column: 1;
  display: grid;
  gap: 14px;
}

/* 移动端底部 sticky CTA */
.sticky-cta {
  display: none;
}

@media (max-width: 900px) {
  .sticky-cta {
    display: flex;
    position: fixed;
    z-index: 60;
    bottom: 0;
    left: 0;
    right: 0;
    align-items: center;
    justify-content: center;
    min-height: 58px;
    padding: 14px 16px calc(14px + env(safe-area-inset-bottom));
    background: var(--control-strong);
    color: var(--paper-strong);
    font-weight: 700;
    letter-spacing: 0.06em;
    box-shadow: 0 -10px 28px rgba(14, 17, 19, 0.28);
  }

  body:not(.is-contact) {
    padding-bottom: 66px;
  }

  body.is-contact .sticky-cta {
    display: none;
  }

  .hero-kicker {
    font-size: 11.5px;
    letter-spacing: 0.12em;
  }

  .section-index {
    font-size: 12px;
  }

  .faq-item summary {
    min-height: 52px;
    font-size: 16px;
  }

  .faq-item p {
    margin-left: 40px;
  }
}

@media (max-width: 640px) {
  .cta-note {
    font-size: 12.5px;
  }

  .section-kicker {
    letter-spacing: 0.18em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .card:hover,
  .summary-item:hover,
  .contact-card:hover {
    transform: none;
  }

  .card-link::after {
    transition: none;
  }
}

/* ============================================================ */
/* 2026-10 AI 场景页视觉化：断点条 diag-strip / 界面示意 mock-* / PoC 三步 timeline-3 */
/* ============================================================ */

.diag-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line-strong);
  background: var(--paper-strong);
}

.diag-item {
  position: relative;
  padding: 22px 22px 24px;
  border-right: 1px solid var(--line-strong);
}

.diag-item:last-child {
  border-right: 0;
}

.diag-mark {
  position: absolute;
  top: 20px;
  left: 22px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  color: var(--white);
  background: var(--exception);
  border-radius: 2px;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 12px;
  line-height: 1;
}

.diag-item strong {
  display: block;
  margin-top: 32px;
  font-size: 15px;
}

.diag-item p {
  margin-top: 8px;
  color: var(--ink-muted);
  font-size: 13px;
  line-height: 1.55;
}

.diag-summary {
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  text-align: center;
}

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

.mock-figure {
  margin: 0;
}

.mock-window {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-strong);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.mock-titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper-deep);
}

.mock-dots {
  display: inline-flex;
  gap: 5px;
}

.mock-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-strong);
}

.mock-title {
  color: var(--ink-muted);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
  letter-spacing: 0.02em;
}

.mock-body {
  min-height: 224px;
  padding: 18px 16px;
}

.mock-msg {
  max-width: 92%;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 12.5px;
  line-height: 1.55;
}

.mock-msg-user {
  margin-left: auto;
  color: var(--white);
  background: var(--control);
  border-bottom-right-radius: 2px;
}

.mock-msg-ai {
  margin-top: 10px;
  color: var(--ink-soft);
  background: #eef0ea;
  border: 1px solid var(--line-strong);
  border-bottom-left-radius: 2px;
}

.mock-src {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 8px;
  color: var(--control-strong);
  background: #dfece5;
  border: 1px solid #739c89;
  border-radius: 3px;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 10.5px;
}

.mock-extract {
  display: grid;
  gap: 14px;
}

.mock-doc {
  display: grid;
  gap: 8px;
  padding: 14px 12px;
  border: 1px dashed var(--line-strong);
  border-radius: 4px;
}

.mock-doc span {
  display: block;
  height: 8px;
  background: var(--line);
  border-radius: 2px;
}

.mock-doc span:nth-child(1) {
  width: 92%;
}

.mock-doc span:nth-child(2) {
  width: 78%;
}

.mock-doc span:nth-child(3) {
  width: 86%;
  background: var(--review);
}

.mock-doc span:nth-child(4) {
  width: 64%;
}

.mock-doc span:nth-child(5) {
  width: 71%;
  background: var(--review);
}

.mock-doc span:nth-child(6) {
  width: 55%;
}

.mock-fields {
  display: grid;
  gap: 8px;
}

.mock-field {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  font-size: 12px;
}

.mock-field span {
  color: var(--ink-muted);
}

.mock-field strong {
  color: var(--control-strong);
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 12.5px;
}

.mock-field.is-flag strong {
  color: var(--exception);
}

.mock-nodes {
  display: grid;
  gap: 9px;
  align-content: start;
}

.mock-node {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 12.5px;
}

.mock-node i {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-strong);
}

.mock-node em {
  margin-left: auto;
  font-style: normal;
  color: var(--ink-muted);
  font-size: 11px;
}

.mock-node.is-done i {
  background: var(--control);
}

.mock-node.is-done em {
  color: var(--control-strong);
}

.mock-node.is-now {
  border-color: var(--review);
  background: #f7f0dd;
}

.mock-node.is-now i {
  background: var(--review);
}

.mock-node.is-now em {
  color: #8a6d2a;
}

.mock-ai-chip {
  width: 100%;
  margin: 4px 0 0 18px;
  padding: 6px 10px;
  color: #6b2518;
  background: #f7e4de;
  border: 1px solid #d78772;
  border-radius: 3px;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 11px;
  line-height: 1.45;
}

.mock-figure figcaption {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 13px;
}

.mock-note {
  margin-top: 26px;
  color: var(--ink-muted);
  font-size: 13px;
  text-align: center;
}

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

@media (max-width: 1180px) {
  .mock-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-inline: auto;
  }

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

  .diag-item:nth-child(2n) {
    border-right: 0;
  }

  .diag-item {
    border-bottom: 1px solid var(--line-strong);
  }

  .diag-item:nth-child(n + 3) {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .diag-strip {
    grid-template-columns: 1fr;
  }

  .diag-item {
    border-right: 0;
  }

  .diag-item:nth-child(n + 3) {
    border-bottom: 1px solid var(--line-strong);
  }

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

  .timeline-3 {
    grid-template-columns: 1fr;
  }

  .timeline-3 .timeline-step {
    border-right: 0;
  }

  .timeline-3 .timeline-step:nth-child(n + 2) {
    border-top: 1px solid var(--line-strong);
  }
}

/* 2026-10 联系页二维码：品牌绿扫码入口（微信 / 电话） */

.contact-qr {
  display: block;
  width: 120px;
  max-width: 100%;
  margin-top: 18px;
  padding: 8px;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

.contact-qr-cap {
  margin-top: 10px;
  color: var(--ink-muted);
  font-size: 12px;
}