:root {
  --blue: #1268e8;
  --deep: #0b2d59;
  --ink: #11233d;
  --muted: #65758b;
  --line: #dce7f5;
  --soft: #f4f8fd;
  --cyan: #4aa8ff;
  --radius: 16px;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: #fff;
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-size: 16px;
  line-height: 1.72;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
.container {
  width: min(1180px, calc(100% - 48px));
  margin: auto;
}
.narrow {
  width: min(850px, calc(100% - 48px));
  margin: auto;
}
.site-header {
  height: 76px;
  border-bottom: 1px solid rgba(211, 224, 241, 0.8);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
}
.brand-logo {
  display: block;
  width: 174px;
  height: 58px;
  object-fit: contain;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 15px;
  font-weight: 600;
}
.site-header nav a:not(.nav-cta):hover,
.router-link-active:not(.brand):not(.nav-cta) {
  color: var(--blue);
}
.nav-cta {
  background: var(--blue);
  color: #fff;
  padding: 10px 19px;
  border-radius: 7px;
}
.menu-btn {
  display: none;
  border: 0;
  background: transparent;
  font-size: 25px;
}
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(115deg, #fff 0%, #f4f9ff 54%, #edf6ff 100%);
  border-bottom: 1px solid #e7eff9;
}
.hero:after {
  content: "";
  position: absolute;
  width: 530px;
  height: 530px;
  border: 1px solid rgba(18, 104, 232, 0.09);
  border-radius: 50%;
  right: -150px;
  top: -220px;
  box-shadow:
    0 0 0 80px rgba(18, 104, 232, 0.025),
    0 0 0 160px rgba(18, 104, 232, 0.018);
}
.hero-grid {
  min-height: 610px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--blue);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1.4px;
  margin-bottom: 20px;
}
.eyebrow span {
  width: 22px;
  height: 3px;
  background: var(--blue);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
.hero h1,
.page-hero h1,
.article-hero h1 {
  font-size: 50px;
  line-height: 1.25;
  letter-spacing: -2px;
  margin-bottom: 24px;
  color: #10243f;
}
.hero h1 em {
  font-style: normal;
  color: var(--blue);
}
.hero-copy > p {
  font-size: 18px;
  color: var(--muted);
  max-width: 650px;
}
.actions {
  display: flex;
  gap: 14px;
  margin: 32px 0 27px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 13px 23px;
  border-radius: 7px;
  font-weight: 700;
}
.btn.primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 10px 25px rgba(18, 104, 232, 0.2);
}
.btn.ghost {
  border: 1px solid #bfcfe4;
  background: #fff;
}
.hero-proof {
  display: flex;
  gap: 23px;
  font-size: 13px;
  color: #607087;
}
.hero-proof span::first-letter {
  color: var(--blue);
}
.signal-panel {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid #d9e7f6;
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 26px 70px rgba(30, 76, 126, 0.14);
  transform: perspective(1000px) rotateY(-2deg);
}
.panel-top {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: #748399;
  margin-bottom: 15px;
}
.panel-top b {
  color: #13a276;
}
.search-box {
  background: #f4f7fb;
  border: 1px solid #e1e8f2;
  border-radius: 10px;
  padding: 13px;
  color: #657489;
  font-size: 13px;
}
.search-box i {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid #8ba1bc;
  border-radius: 50%;
  margin-right: 9px;
}
.answer-card {
  margin-top: 13px;
  background: linear-gradient(135deg, #0c3970, #1268e8);
  color: #fff;
  border-radius: 13px;
  padding: 23px;
}
.answer-card small {
  opacity: 0.65;
}
.answer-card strong {
  display: block;
  font-size: 18px;
  margin: 12px 0 6px;
}
.answer-card p {
  font-size: 13px;
  opacity: 0.78;
  line-height: 1.65;
}
.answer-lines i {
  display: block;
  height: 4px;
  background: rgba(255, 255, 255, 0.18);
  margin-top: 7px;
  border-radius: 5px;
}
.answer-lines i:nth-child(2) {
  width: 82%;
}
.answer-lines i:nth-child(3) {
  width: 64%;
}
.signal-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 13px;
}
.signal-stats div {
  background: #f6f9fd;
  border: 1px solid #e8eef6;
  border-radius: 9px;
  padding: 12px;
}
.signal-stats b,
.signal-stats span {
  display: block;
}
.signal-stats b {
  color: var(--blue);
  font-size: 13px;
}
.signal-stats span {
  color: #8491a2;
  font-size: 11px;
}
.section {
  padding: 88px 0;
}
.services-section,
.soft,
.related {
  background: var(--soft);
}
.section-head {
  margin-bottom: 40px;
}
.section-head.split {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 60px;
}
.section-head h2,
.method-grid h2,
.about-grid h2 {
  font-size: 34px;
  line-height: 1.35;
  margin-bottom: 0;
}
.section-head > p,
.section-head > div > p {
  max-width: 500px;
  color: var(--muted);
  margin-bottom: 0;
}
.kicker {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 12px;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.service-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  padding: 30px;
  border-radius: var(--radius);
  transition: 0.25s;
}
.service-card:hover,
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 45px rgba(42, 78, 117, 0.1);
}
.service-card.featured {
  border-top: 3px solid var(--blue);
}
.service-no {
  position: absolute;
  right: 24px;
  top: 22px;
  color: #b8c8dc;
  font-size: 12px;
}
.icon-box {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: #eaf3ff;
  color: var(--blue);
  border-radius: 10px;
  font-size: 22px;
}
.service-card h3 {
  font-size: 21px;
  margin: 22px 0 10px;
}
.service-card p,
.service-card li {
  color: var(--muted);
  font-size: 14px;
}
.service-card ul {
  padding: 0;
  list-style: none;
  margin: 20px 0;
}
.service-card li {
  padding: 6px 0;
  border-bottom: 1px dashed #e4ebf4;
}
.service-card li:before {
  content: "✓";
  color: var(--blue);
  margin-right: 8px;
}
.service-card a,
.text-link {
  color: var(--blue);
  font-weight: 700;
  font-size: 14px;
}
.method-section {
  background: linear-gradient(120deg, #0c2e59, #0a417f);
  color: #fff;
}
.method-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 100px;
  align-items: center;
}
.method-grid h2 {
  color: #fff;
  margin-bottom: 20px;
}
.method-grid p {
  color: #b9cce2;
}
.text-link.large {
  display: inline-block;
  margin-top: 15px;
  color: #63b4ff;
}
.steps > div {
  display: flex;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}
.steps b {
  color: #5db4ff;
}
.steps strong,
.steps small {
  display: block;
}
.steps strong {
  font-size: 18px;
}
.steps small {
  color: #a7bdd6;
  margin-top: 3px;
}
.article-grid,
.article-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.article-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: 0.25s;
}
.card-visual {
  height: 126px;
  background: linear-gradient(145deg, #dbeeff, #f6faff);
  padding: 20px;
  color: var(--blue);
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.card-visual:after {
  content: "";
  position: absolute;
  width: 130px;
  height: 130px;
  border: 24px solid rgba(18, 104, 232, 0.07);
  border-radius: 50%;
  right: -35px;
  bottom: -70px;
}
.card-visual i {
  font-style: normal;
  font-size: 22px;
}
.article-body {
  padding: 22px;
}
.meta {
  font-size: 12px;
  color: #8a98aa;
}
.article-card h3 {
  font-size: 18px;
  line-height: 1.45;
  margin: 9px 0;
}
.article-card p {
  font-size: 14px;
  color: var(--muted);
}
.cta-section {
  padding: 58px 0;
  background: linear-gradient(110deg, #1268e8, #0851b4);
  color: #fff;
}
.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.cta-inner small {
  opacity: 0.7;
}
.cta-inner h2 {
  font-size: 32px;
  margin: 5px 0;
}
.cta-inner p {
  margin-bottom: 0;
  opacity: 0.78;
}
.btn.white {
  background: #fff;
  color: var(--blue);
}
footer {
  background: #071f3e;
  color: #aabdd1;
  padding: 55px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 50px;
}
.footer-grid > div {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-brand {
  color: #fff;
  font-size: 19px;
  font-weight: 800;
}
.footer-brand span {
  color: #56adff;
}
.footer-grid p {
  max-width: 390px;
  font-size: 14px;
}
.footer-grid b {
  color: #fff;
  margin-bottom: 8px;
}
.footer-grid a,
.footer-grid span {
  font-size: 14px;
}
.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 36px;
  padding-top: 18px;
  font-size: 12px;
}
.page-hero {
  background: linear-gradient(120deg, #eef6ff, #fff);
  padding: 90px 0;
  border-bottom: 1px solid #e4edf7;
}
.page-hero h1 {
  margin-bottom: 20px;
}
.page-hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 720px;
}
.page-hero.compact {
  padding: 65px 0;
}
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.service-detail-grid article {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 36px;
}
.service-detail-grid article > span {
  font-size: 12px;
  color: var(--blue);
  font-weight: 800;
}
.service-detail-grid h2 {
  font-size: 28px;
  margin: 12px 0;
}
.service-detail-grid p,
.service-detail-grid li {
  color: var(--muted);
}
.service-detail-grid li {
  margin: 12px 0;
}
.deliver-grid,
.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.deliver-grid > div,
.values article {
  background: #fff;
  border: 1px solid var(--line);
  padding: 25px;
  border-radius: 12px;
}
.deliver-grid b {
  font-size: 18px;
}
.deliver-grid p,
.values p {
  font-size: 14px;
  color: var(--muted);
  margin: 8px 0 0;
}
.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 38px;
  align-items: start;
}
.article-list-grid {
  grid-template-columns: repeat(2, 1fr);
}
.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.filters button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 20px;
  padding: 8px 15px;
  color: #65758b;
  cursor: pointer;
}
.filters button.active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}
.aside-block,
.aside-note {
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 22px;
  margin-bottom: 18px;
}
.aside-block h3 {
  font-size: 17px;
}
.aside-block > a {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #edf1f6;
  font-size: 14px;
}
.aside-block > a b {
  color: #97a4b5;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tags a {
  background: #eff5fc;
  color: #52677f;
  padding: 5px 9px;
  border-radius: 5px;
  font-size: 12px;
}
.aside-note {
  background: #0b376c;
  color: #fff;
}
.aside-note small,
.aside-note b,
.aside-note a {
  display: block;
}
.aside-note b {
  font-size: 18px;
  margin: 8px 0 18px;
}
.aside-note a {
  color: #60b7ff;
}
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 32px;
}
.pagination button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  color: #52677f;
  cursor: pointer;
}
.pagination .current {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}
.article-hero {
  background: linear-gradient(180deg, #f5f9fe, #fff);
  padding: 42px 0 38px;
  text-align: center;
  border-bottom: 1px solid #e7eef7;
}
.breadcrumb {
  font-size: 13px;
  color: #8290a2;
  margin-bottom: 18px;
}
.breadcrumb span {
  margin: 0 8px;
}
.article-label {
  display: inline-block;
  color: var(--blue);
  background: #e8f2ff;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 13px;
}
.article-hero h1 {
  max-width: 920px;
  margin: 14px auto 12px;
  font-size: clamp(34px, 2.8vw, 44px);
  line-height: 1.25;
  letter-spacing: -1.5px;
}
.article-hero > div > p {
  max-width: 820px;
  margin-right: auto;
  margin-left: auto;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}
.author-line {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}
.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  display: grid;
  place-items: center;
}
.author-line b,
.author-line span {
  display: block;
  text-align: left;
  font-size: 13px;
}
.author-line span {
  color: #8b97a7;
}
.article-section {
  padding: 54px 0 72px;
}
.article-layout {
  width: min(1260px, calc(100% - 48px));
  display: grid;
  grid-template-columns: 190px minmax(0, 760px) 240px;
  justify-content: center;
  gap: 35px;
}
.toc {
  position: sticky;
  top: 105px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 17px;
  border-left: 1px solid #dbe5f0;
  font-size: 14px;
  line-height: 1.5;
}
.toc b {
  margin-bottom: 9px;
  color: var(--ink);
  font-size: 16px;
}
.toc a {
  position: relative;
  padding: 7px 0;
  color: #718095;
  transition: color 0.2s;
}
.toc a::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: -18px;
  width: 2px;
  background: transparent;
}
.toc a:hover,
.toc a.active {
  color: var(--blue);
}
.toc a.active {
  font-weight: 700;
}
.toc a.active::before {
  background: var(--blue);
}
.prose {
  font-size: 17px;
  line-height: 1.85;
  color: #3f5065;
}
.prose > p {
  margin-bottom: 1.25em;
  text-indent: 0;
}
.prose .lead {
  font-size: 19px;
  color: #1d344f;
  line-height: 1.85;
}
.prose h2 {
  font-size: 29px;
  line-height: 1.4;
  color: var(--ink);
  margin: 52px 0 18px;
  scroll-margin-top: 110px;
}
.prose h3 {
  font-size: 22px;
  line-height: 1.5;
  color: var(--ink);
  margin: 34px 0 12px;
}
.prose blockquote {
  margin: 30px 0;
  border-left: 4px solid var(--blue);
  background: #f2f7fd;
  padding: 20px 25px;
  color: #274463;
}
.prose li {
  margin: 8px 0;
}
.article-end {
  margin-top: 45px;
  background: #eef6ff;
  padding: 26px;
  border-radius: 12px;
}
.article-end b {
  color: var(--blue);
}
.article-end p {
  margin: 8px 0 0;
}
.latest-posts {
  position: sticky;
  top: 105px;
  align-self: start;
  max-height: calc(100vh - 125px);
  padding-right: 4px;
  overflow-y: auto;
}
.sidebar-post-group {
  padding: 18px;
  background: #f7faff;
  border: 1px solid #e4edf7;
  border-radius: 12px;
}
.sidebar-post-group > b {
  display: block;
  margin-bottom: 10px;
  font-size: 16px;
  color: var(--ink);
}
.sidebar-post-group > a:not(.latest-more) {
  display: block;
  margin-top: 9px;
  padding: 11px 12px;
  background: #fff;
  border: 1px solid #e8eef6;
  border-radius: 8px;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.sidebar-post-group > a:not(.latest-more):hover {
  border-color: #c9ddf5;
  box-shadow: 0 6px 16px rgba(35, 76, 121, 0.07);
}
.latest-posts span {
  display: block;
  margin-bottom: 5px;
  color: #8a98aa;
  font-size: 11px;
}
.latest-posts strong {
  display: block;
  color: #2b405a;
  font-size: 14px;
  line-height: 1.55;
  transition: color 0.2s;
}
.sidebar-post-group > a:hover strong {
  color: var(--blue);
}
.latest-posts .latest-more {
  display: inline-block;
  margin-top: 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}
.related-posts {
  margin-top: 16px;
}
.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 120px;
}
.about-grid .lead {
  font-size: 24px;
  color: #1a3555;
}
.about-grid p {
  color: var(--muted);
}
.values {
  grid-template-columns: repeat(3, 1fr);
}
.values article b {
  color: var(--blue);
}
.values h3 {
  font-size: 21px;
  margin: 14px 0 0;
}
.empty {
  text-align: center;
  padding: 70px;
  color: var(--muted);
}
@media (max-width: 900px) {
  .site-header nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 22px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
    box-shadow: 0 15px 30px rgba(20, 50, 90, 0.1);
  }
  .site-header nav.open {
    display: flex;
  }
  .menu-btn {
    display: block;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 70px 0;
  }
  .hero h1,
  .page-hero h1 {
    font-size: 40px;
  }
  .signal-panel {
    transform: none;
  }
  .service-grid,
  .article-grid,
  .deliver-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .method-grid {
    grid-template-columns: 1fr;
    gap: 45px;
  }
  .blog-layout {
    grid-template-columns: 1fr;
  }
  .blog-layout aside {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }
  .article-layout {
    grid-template-columns: minmax(0, 720px);
  }
  .toc,
  .latest-posts {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
  .footer-grid > div:last-child {
    grid-column: 1/-1;
  }
  .about-grid {
    gap: 50px;
  }
}
@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(100% - 32px, 1180px);
  }
  .section {
    padding: 62px 0;
  }
  .hero-grid {
    min-height: auto;
    padding: 58px 0;
  }
  .hero h1,
  .page-hero h1,
  .article-hero h1 {
    font-size: 34px;
    letter-spacing: -1px;
  }
  .hero-copy > p,
  .page-hero p {
    font-size: 16px;
  }
  .actions,
  .hero-proof,
  .section-head.split,
  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }
  .actions .btn {
    width: 100%;
  }
  .hero-proof {
    gap: 7px;
  }
  .signal-panel {
    padding: 14px;
  }
  .service-grid,
  .article-grid,
  .article-list-grid,
  .service-detail-grid,
  .deliver-grid,
  .values,
  .footer-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }
  .section-head.split {
    gap: 14px;
  }
  .section-head h2,
  .method-grid h2,
  .about-grid h2 {
    font-size: 28px;
  }
  .method-grid {
    gap: 30px;
  }
  .blog-layout aside {
    display: block;
  }
  .cta-inner {
    gap: 25px;
  }
  .footer-grid > div:last-child {
    grid-column: auto;
  }
  .article-hero {
    padding: 45px 0;
  }
  .article-section {
    padding: 40px 0;
  }
  .article-layout {
    display: block;
  }
  .prose {
    font-size: 16px;
  }
  .prose .lead {
    font-size: 18px;
  }
  .card-visual {
    height: 105px;
  }
  .page-hero {
    padding: 62px 0;
  }
}

/* 首页：恢复用户指定原型版式 */
.prototype-home {
  --prototype-bg: #f4f8fd;
  --prototype-border: #dbe7f4;
}
.prototype-hero {
  background: linear-gradient(115deg, #f8fbff, #eaf4ff);
  padding: 72px 0 68px;
}
.prototype-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}
.prototype-pill {
  display: inline-block;
  background: #e4f0ff;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 20px;
  margin-bottom: 18px;
}
.prototype-hero h1 {
  font-size: 46px;
  line-height: 1.18;
  letter-spacing: -1.7px;
  margin: 0 0 18px;
}
.prototype-hero h1 em {
  font-style: normal;
  color: var(--blue);
}
.prototype-hero-copy > p {
  color: #6c7d92;
  max-width: 610px;
  margin-bottom: 24px;
}
.prototype-actions {
  display: flex;
  gap: 12px;
}
.problem-panel {
  background: #fff;
  border: 1px solid var(--prototype-border);
  border-radius: 17px;
  padding: 25px;
  box-shadow: 0 16px 42px rgba(36, 76, 119, 0.08);
}
.problem-panel h2 {
  font-size: 18px;
  margin-bottom: 18px;
}
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.problem-grid article {
  background: #f4f8fd;
  border: 1px solid #e3ebf5;
  border-radius: 10px;
  padding: 16px;
}
.problem-grid b {
  font-size: 14px;
  color: #27486e;
}
.problem-grid p {
  font-size: 12px;
  color: #8190a3;
  margin: 5px 0 0;
}
.prototype-section {
  padding: 68px 0;
}
.prototype-services {
  background: #f5f8fc;
}
.prototype-heading {
  margin-bottom: 28px;
}
.prototype-heading > span,
.insight-list > span {
  display: block;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 10px;
}
.prototype-heading h2 {
  font-size: 30px;
  line-height: 1.35;
  margin-bottom: 10px;
}
.prototype-heading p {
  color: #7a899b;
  font-size: 14px;
  margin-bottom: 0;
}
.prototype-service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.prototype-service-grid article {
  background: #fff;
  border: 1px solid var(--prototype-border);
  border-radius: 13px;
  padding: 27px;
}
.prototype-service-grid small {
  color: var(--blue);
  font-weight: 800;
}
.prototype-service-grid h3 {
  font-size: 20px;
  margin: 11px 0 7px;
}
.prototype-service-grid p,
.prototype-service-grid li {
  font-size: 14px;
  color: #708198;
}
.prototype-service-grid ul {
  padding-left: 17px;
  margin-bottom: 0;
}
.prototype-service-grid li {
  margin: 5px 0;
}
.prototype-method {
  background: #fff;
}
.method-board {
  display: grid;
  grid-template-columns: 1.35fr repeat(4, 1fr);
  border: 1px solid var(--prototype-border);
  border-radius: 15px;
  overflow: hidden;
}
.method-intro {
  background: #eaf3fe;
  padding: 25px;
}
.method-intro h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.method-intro p,
.method-step p {
  font-size: 13px;
  color: #718198;
  margin: 0;
}
.method-step {
  padding: 25px 17px;
  border-left: 1px solid #e5edf6;
}
.method-step b {
  display: block;
  color: #315980;
  font-size: 13px;
  margin-bottom: 9px;
}
.prototype-insights-section {
  background: #f7f9fc;
}
.home-latest-blog {
  background: #f5f8fc;
  border-top: 1px solid #e8eef6;
}
.home-latest-blog .article-card {
  box-shadow: 0 8px 24px rgba(35, 74, 116, 0.05);
}
.prototype-insights-grid {
  display: grid;
  grid-template-columns: 1.45fr 0.95fr;
  gap: 20px;
}
.insight-list {
  background: #fff;
  border: 1px solid var(--prototype-border);
  border-radius: 14px;
  padding: 27px;
}
.insight-list h2 {
  font-size: 26px;
  margin-bottom: 18px;
}
.insight-list article {
  padding: 14px 0;
  border-bottom: 1px solid #e8eef5;
}
.insight-list article small {
  font-size: 11px;
  color: var(--blue);
  font-weight: 800;
}
.insight-list article h3 {
  font-size: 17px;
  margin: 5px 0 2px;
}
.insight-list article p {
  font-size: 13px;
  color: #7c8a9b;
  margin: 0;
}
.prototype-more {
  display: inline-block;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  margin-top: 18px;
}
.prototype-cta {
  background: linear-gradient(145deg, #2780e4, #1268c8);
  color: #fff;
  border-radius: 14px;
  padding: 35px;
}
.prototype-cta h2 {
  font-size: 27px;
  line-height: 1.5;
}
.prototype-cta p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}
.prototype-cta a {
  display: inline-block;
  background: #fff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  padding: 10px 16px;
  border-radius: 6px;
  margin-top: 10px;
}
.prototype-footer {
  background: #fff;
  color: #8290a1;
  padding: 25px 0;
  border-top: 1px solid #e5edf6;
}
.prototype-footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
}
.prototype-footer .container {
  padding-top: 0;
  border-top: 0;
  margin-top: auto;
}
@media (max-width: 900px) {
  .prototype-hero-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .prototype-service-grid {
    grid-template-columns: 1fr 1fr;
  }
  .method-board {
    grid-template-columns: 1fr 1fr;
  }
  .method-intro {
    grid-column: 1/-1;
  }
  .prototype-insights-grid {
    grid-template-columns: 1fr;
  }
  .prototype-cta {
    min-height: 260px;
  }
}
@media (max-width: 640px) {
  .prototype-hero {
    padding: 52px 0;
  }
  .prototype-hero h1 {
    font-size: 35px;
  }
  .problem-grid,
  .prototype-service-grid,
  .method-board {
    grid-template-columns: 1fr;
  }
  .method-intro {
    grid-column: auto;
  }
  .method-step {
    border-left: 0;
    border-top: 1px solid #e5edf6;
  }
  .prototype-section {
    padding: 54px 0;
  }
  .prototype-heading h2 {
    font-size: 26px;
  }
  .prototype-footer-inner {
    flex-direction: column;
    gap: 7px;
  }
}

/* 工作方式模块：按参考图精确收紧 */
.prototype-method {
  padding: 62px 0 70px;
}
.prototype-method .container {
  width: min(1020px, calc(100% - 48px));
}
.prototype-method .prototype-heading {
  margin-bottom: 25px;
}
.prototype-method .prototype-heading > span {
  font-size: 11px;
  margin-bottom: 8px;
}
.prototype-method .prototype-heading h2 {
  font-size: 27px;
}
.prototype-method .method-board {
  grid-template-columns: 230px repeat(4, minmax(0, 1fr));
  min-height: 138px;
  border-color: #d9e6f4;
  background: #fff;
}
.prototype-method .method-intro {
  padding: 23px 20px;
  background: #eaf3fd;
}
.prototype-method .method-intro h3 {
  font-size: 19px;
  margin-bottom: 7px;
}
.prototype-method .method-intro p,
.prototype-method .method-step p {
  font-size: 12px;
  line-height: 1.65;
}
.prototype-method .method-step {
  align-self: stretch;
  margin: 30px 5px;
  padding: 13px 11px;
  background: #f7faff;
  border: 0;
  border-left: 3px solid #2481f5;
  border-radius: 6px;
}
.prototype-method .method-step:first-of-type {
  margin-left: 14px;
}
.prototype-method .method-step:last-child {
  margin-right: 14px;
}
.prototype-method .method-step b {
  font-size: 12px;
  color: #244c77;
  margin-bottom: 8px;
}
@media (max-width: 900px) {
  .prototype-method .method-board {
    grid-template-columns: 1fr 1fr;
  }
  .prototype-method .method-intro {
    grid-column: 1/-1;
  }
  .prototype-method .method-step,
  .prototype-method .method-step:first-of-type,
  .prototype-method .method-step:last-child {
    margin: 8px;
  }
}
@media (max-width: 640px) {
  .prototype-method .method-board {
    grid-template-columns: 1fr;
  }
  .prototype-method .method-intro {
    grid-column: auto;
  }
  .prototype-method .method-step,
  .prototype-method .method-step:first-of-type,
  .prototype-method .method-step:last-child {
    margin: 7px 10px;
    border: 0;
    border-left: 3px solid #2481f5;
  }
  .prototype-method .prototype-heading h2 {
    font-size: 26px;
  }
}