:root {
  --ink: #19334a;
  --muted: #637084;
  --blue: #2864dc;
  --blue-dark: #1744a8;
  --orange: #ee7442;
  --lime: #bddb46;
  --cream: #fffdf7;
  --sand: #f6f0e4;
  --line: #e6ded0;
  --card: #ffffff;
  --shadow: 0 14px 36px rgba(37, 65, 105, 0.1);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei",
    Arial, sans-serif;
  line-height: 1.72;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  height: auto;
}
button,
input {
  font: inherit;
}
.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}
.narrow {
  width: min(860px, 100%);
}

.top-bar {
  background: #eaf2ff;
  border-bottom: 1px solid #dbe7ff;
  color: #31506f;
  font-size: 13px;
}
.top-bar .container,
.header-inner,
.top-links,
.header-actions,
.hero-actions,
.hero-stats,
.footer-bottom {
  display: flex;
  align-items: center;
}
.top-bar .container {
  min-height: 40px;
  justify-content: space-between;
  gap: 18px;
}
.top-bar i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--orange);
}
.top-links {
  gap: 18px;
  font-weight: 700;
}
.top-links a:hover,
nav a:hover {
  color: var(--blue);
}
header {
  position: relative;
  z-index: 4;
  background: rgba(255, 253, 247, 0.97);
  border-bottom: 1px solid #f0eadf;
}
.header-inner {
  min-height: 84px;
  gap: 24px;
  justify-content: space-between;
}
.logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
}
.logo img {
  display: block;
  width: 148px;
  height: 52px;
}
#mainNav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  flex: 1;
}
#mainNav a {
  position: relative;
  padding: 8px 0;
  color: #3a526d;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}
#mainNav a.active {
  color: var(--blue);
}
#mainNav a.active::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 4px;
  background: var(--orange);
  content: "";
}
.header-actions {
  gap: 9px;
}
.btn-login,
.btn-join,
.btn-primary,
.btn-text,
.text-link {
  border: 0;
  cursor: pointer;
  font-weight: 800;
}
.btn-login {
  padding: 8px 11px;
  background: transparent;
  color: #3a526d;
}
.btn-join,
.btn-primary {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 11px;
  color: #fff;
  background: var(--blue);
  box-shadow: 0 8px 16px rgba(40, 100, 220, 0.18);
}
.btn-primary {
  background: var(--orange);
}
.btn-text {
  display: inline-block;
  padding: 10px 14px;
  color: var(--blue);
  background: #fff;
  border: 1px solid #dce7ff;
  border-radius: 11px;
}
.hamburger {
  display: none;
  border: 0;
  background: transparent;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.search-bar {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.search-inner {
  display: flex;
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 14px 0;
}
.search-inner input {
  min-width: 0;
  flex: 1;
  padding: 12px 15px;
  border: 1px solid #dce5f0;
  border-right: 0;
  border-radius: 10px 0 0 10px;
  outline: none;
  color: var(--ink);
  background: #fbfdff;
}
.search-inner input:focus {
  border-color: var(--blue);
}
.search-inner button {
  padding: 0 20px;
  border: 0;
  border-radius: 0 10px 10px 0;
  color: white;
  background: var(--orange);
  font-weight: 800;
  cursor: pointer;
}
.breadcrumb {
  background: #fff9ed;
  border-bottom: 1px solid #f1e6d4;
  color: #8a7d6e;
  font-size: 13px;
}
.breadcrumb .container {
  padding: 10px 0;
}
.breadcrumb a {
  color: var(--blue);
}
.breadcrumb b {
  margin: 0 8px;
  color: var(--orange);
}

.hero {
  overflow: hidden;
  padding: 54px 0 66px;
  background: radial-gradient(circle at 86% 16%, #d8eeff 0, transparent 30%),
    linear-gradient(132deg, #fff9ec 0%, #f8fbff 58%, #fff1df 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 48px;
}
.kicker,
.section-heading > span,
.race-section span,
.app-band span,
.feature-row span {
  display: inline-block;
  color: #c55b2f;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}
.kicker::before {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--orange);
  content: "";
}
h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}
h1 {
  margin: 10px 0 18px;
  color: #173551;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.12;
  letter-spacing: -0.06em;
}
h1 em,
h2 em {
  color: var(--blue);
  font-style: normal;
}
.hero-copy > p {
  max-width: 610px;
  color: #506477;
  font-size: 16px;
}
.hero-actions {
  gap: 12px;
  margin: 24px 0;
}
.hero-stats {
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 27px;
}
.hero-stats span {
  color: #6c7c89;
  font-size: 12px;
}
.hero-stats b {
  display: block;
  color: var(--orange);
  font-size: 22px;
  line-height: 1.3;
}
.hero-visual {
  position: relative;
}
.hero-visual > img {
  display: block;
  width: 100%;
  min-height: 390px;
  border: 7px solid #fff;
  border-radius: 28px;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.live-note {
  position: absolute;
  right: -12px;
  bottom: 22px;
  min-width: 176px;
  padding: 14px 16px;
  border: 1px solid #e5e9fa;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}
.live-note i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 5px;
  border-radius: 50%;
  background: #ef6b56;
}
.live-note span,
.live-note small {
  display: block;
  color: #657383;
  font-size: 12px;
}
.live-note b {
  display: block;
  color: var(--blue);
  font-size: 24px;
}

.section {
  padding: 72px 0;
}
.section-soft {
  background: var(--sand);
}
.section-heading {
  margin-bottom: 32px;
}
.section-heading.center {
  text-align: center;
}
.section-heading h2,
.race-section h2,
.app-band h2,
.feature-row h2 {
  margin: 7px 0 9px;
  color: #173551;
  font-size: clamp(28px, 3.5vw, 42px);
  line-height: 1.24;
  letter-spacing: -0.04em;
}
.section-heading p {
  max-width: 740px;
  margin-bottom: 0;
  color: var(--muted);
}
.section-heading.center p {
  margin-right: auto;
  margin-left: auto;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.feature-grid article {
  min-height: 186px;
  padding: 24px;
  border: 1px solid #e6ebec;
  border-radius: 18px;
  background: var(--card);
  box-shadow: 0 8px 22px rgba(51, 73, 96, 0.05);
}
.feature-grid article:nth-child(2) {
  border-top: 4px solid var(--blue);
}
.feature-grid article:nth-child(3) {
  border-top: 4px solid var(--orange);
}
.feature-grid article:nth-child(4) {
  border-top: 4px solid var(--lime);
}
.feature-grid b {
  color: var(--orange);
  font-size: 13px;
}
.feature-grid h3 {
  margin: 25px 0 7px;
  color: var(--blue-dark);
  font-size: 20px;
}
.feature-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.video-card {
  overflow: hidden;
  padding: 0 0 18px;
  border: 1px solid #e8e8e8;
  border-radius: 18px;
  background: white;
  box-shadow: 0 8px 22px rgba(30, 54, 88, 0.06);
}
.video-card > span,
.video-card h3,
.video-card p,
.video-card > small {
  display: block;
  margin-right: 18px;
  margin-left: 18px;
}
.video-card > span {
  margin-top: 14px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 900;
}
.video-card h3 {
  margin-top: 5px;
  margin-bottom: 7px;
  font-size: 19px;
  line-height: 1.35;
}
.video-card p {
  min-height: 47px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}
.video-card > small {
  color: #7b8793;
  font-size: 12px;
}
.video-thumb {
  position: relative;
  overflow: hidden;
  height: 205px;
  background: #dce6f6;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s ease;
}
.video-card:hover .video-thumb img {
  transform: scale(1.05);
}
.play {
  position: absolute;
  left: 18px;
  bottom: 15px;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: rgba(40, 100, 220, 0.9);
  transform: translateY(8px);
  opacity: 0;
  transition: 0.25s ease;
}
.video-card:hover .play {
  transform: translateY(0);
  opacity: 1;
}
.video-thumb small {
  position: absolute;
  right: 12px;
  bottom: 9px;
  padding: 2px 7px;
  border-radius: 6px;
  color: #fff;
  background: rgba(24, 42, 63, 0.75);
}

.race-section {
  color: #2e4057;
  background: linear-gradient(120deg, #edf3ff, #fff4e4);
}
.race-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 46px;
  align-items: center;
}
.race-grid p {
  color: #596b7d;
}
.race-grid ul {
  padding-left: 19px;
  color: #53657a;
}
.race-grid li::marker {
  color: var(--orange);
}
.race-grid figure {
  position: relative;
  margin: 0;
}
.race-grid img {
  width: 100%;
  border: 7px solid white;
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.race-grid figcaption {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 7px 10px;
  border-radius: 9px;
  color: white;
  background: rgba(23, 53, 81, 0.85);
  font-size: 12px;
}
.text-link {
  color: var(--blue);
}
.text-link:hover {
  color: var(--orange);
}
.app-band {
  overflow: hidden;
  background: linear-gradient(110deg, #fff4e6, #eaf5ff);
}
.app-band-grid {
  display: grid;
  grid-template-columns: 1fr 0.5fr;
  align-items: center;
  gap: 64px;
}
.app-band-grid > img {
  max-height: 460px;
  margin: -28px auto -60px;
  border-radius: 28px 28px 0 0;
  box-shadow: 0 14px 35px rgba(40, 100, 220, 0.17);
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 55px;
}
.faq-item {
  overflow: hidden;
  margin-bottom: 10px;
  border: 1px solid #e6e7e4;
  border-radius: 13px;
  background: white;
}
.faq-item button {
  display: flex;
  width: 100%;
  padding: 17px 19px;
  border: 0;
  color: var(--ink);
  background: white;
  text-align: left;
  font-weight: 900;
  cursor: pointer;
}
.faq-item button b {
  margin-left: auto;
  color: var(--orange);
  font-size: 20px;
  line-height: 1;
}
.faq-item div {
  display: none;
  padding: 0 19px 17px;
  color: var(--muted);
}
.faq-item.open div {
  display: block;
}
.faq-item p {
  margin: 0;
}
.comments-section {
  margin-top: 30px;
}
.comments-section > h2 {
  margin-bottom: 16px;
  font-size: 21px;
}
.comment-item {
  display: flex;
  gap: 13px;
  padding: 14px 0;
  border-top: 1px solid #e5e6e5;
}
.comment-avatar {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--blue);
  font-weight: 900;
}
.comment-body b {
  color: var(--blue-dark);
}
.comment-body p {
  margin: 2px 0;
  color: var(--muted);
  font-size: 14px;
}
.comment-body small {
  color: #8a949d;
  font-size: 12px;
}

.page-intro {
  background: linear-gradient(180deg, #fffdfa, #f5f9ff);
}
.page-intro .section-heading {
  max-width: 790px;
}
.feature-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
  min-height: 220px;
  margin-top: 22px;
  padding: 28px;
  border: 1px solid #e5e8eb;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(38, 58, 85, 0.05);
}
.feature-row:nth-child(even) {
  grid-template-columns: 0.8fr 1.2fr;
  background: #fff9f0;
}
.feature-row:nth-child(even) figure {
  order: -1;
}
.feature-row p {
  margin: 0;
  color: var(--muted);
}
.feature-row figure {
  margin: 0;
}
.feature-row img {
  display: block;
  width: 100%;
  height: 180px;
  border-radius: 15px;
  object-fit: cover;
}

.news-list,
.qa-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.news-card,
.qa-card {
  display: grid;
  grid-template-columns: 235px 1fr;
  overflow: hidden;
  border: 1px solid #e7e6e1;
  border-radius: 17px;
  background: white;
  box-shadow: 0 7px 18px rgba(32, 57, 86, 0.05);
}
.news-card > img,
.qa-card > img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}
.news-card > div,
.qa-card > div {
  padding: 17px;
}
.news-card span,
.qa-card span {
  color: #bf653c;
  font-size: 12px;
  font-weight: 900;
}
.news-card h2,
.qa-card h2 {
  margin: 8px 0 7px;
  color: var(--blue-dark);
  font-size: 17px;
  line-height: 1.42;
}
.news-card h2:hover,
.qa-card h2:hover {
  color: var(--orange);
}
.news-card p,
.qa-card p {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
}

.content-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 30px;
  align-items: start;
}
.article-content {
  padding: 36px;
  border: 1px solid #e6e5e1;
  border-radius: 20px;
  background: white;
  box-shadow: 0 8px 20px rgba(28, 58, 85, 0.05);
}
.article-cat {
  color: #c05d38;
  font-size: 13px;
  font-weight: 900;
}
.article-content h1 {
  margin: 6px 0 11px;
  font-size: clamp(29px, 4vw, 46px);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 21px;
  color: #8b949c;
  font-size: 13px;
}
.article-cover {
  overflow: hidden;
  margin: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #eef4ff;
}
.article-cover img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.article-body h2 {
  margin: 33px 0 10px;
  color: var(--blue-dark);
  font-size: 25px;
  line-height: 1.35;
}
.article-body p {
  color: #526276;
  font-size: 16px;
}
.article-conclusion {
  margin-top: 33px;
  padding: 22px;
  border-left: 4px solid var(--orange);
  border-radius: 0 14px 14px 0;
  background: #fff8ee;
}
.article-conclusion h3 {
  margin-bottom: 7px;
  color: var(--blue-dark);
}
.article-conclusion p {
  margin-bottom: 0;
  color: var(--muted);
}
.related-panel {
  position: sticky;
  top: 18px;
  padding: 19px;
  border: 1px solid #e1e8f1;
  border-radius: 16px;
  background: #f6faff;
}
.related-panel h3 {
  margin: 0 0 9px;
  color: var(--blue-dark);
  font-size: 16px;
}
.related-panel a {
  display: block;
  padding: 8px 0;
  border-bottom: 1px dashed #ccdae9;
  color: #56708b;
  font-size: 13px;
}
.aside-links {
  margin-top: 18px;
}

footer {
  color: #dbe6f0;
  background: #183653;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 0.9fr 1fr;
  gap: 34px;
  padding: 49px 0 34px;
}
.footer-brand p {
  color: #b7c7d7;
  font-size: 13px;
}
.footer-brand .update {
  color: #f4b47b;
}
.footer-col h4 {
  margin-bottom: 12px;
  color: #fff;
}
.footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-col li {
  margin: 7px 0;
  color: #c3d2df;
  font-size: 13px;
}
.footer-col a:hover {
  color: #fff;
}
.footer-qr {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}
.footer-qr div {
  text-align: center;
  color: #c8d7e3;
  font-size: 11px;
}
.footer-qr img {
  display: block;
  width: 66px;
  height: 66px;
  margin-bottom: 3px;
  padding: 3px;
  border-radius: 6px;
  background: #fff;
}
.footer-bottom {
  justify-content: space-between;
  gap: 15px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  color: #b8c8d7;
  font-size: 12px;
}
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9;
  max-width: 280px;
  padding: 12px 15px;
  border-radius: 10px;
  color: white;
  background: var(--blue);
  box-shadow: var(--shadow);
  transform: translateY(15px);
  opacity: 0;
  pointer-events: none;
  transition: 0.2s;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 940px) {
  #mainNav {
    gap: 10px;
  }
  #mainNav a {
    font-size: 12px;
  }
  .header-actions .btn-login {
    display: none;
  }
  .hero-grid,
  .race-grid,
  .app-band-grid,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .hero-visual {
    max-width: 700px;
    margin: 0 auto;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .app-band-grid > img {
    max-height: 420px;
    margin-bottom: -70px;
  }
  .content-sidebar {
    grid-template-columns: 1fr;
  }
  .related-panel {
    position: static;
  }
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}
@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, 1160px);
  }
  .top-bar .container {
    justify-content: center;
    padding: 8px 0;
    text-align: center;
  }
  .top-links {
    display: none;
  }
  .header-inner {
    min-height: 68px;
    gap: 10px;
  }
  .logo img {
    width: 116px;
    height: auto;
  }
  #mainNav {
    position: absolute;
    top: 68px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 20px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: #fffdf7;
    box-shadow: var(--shadow);
  }
  #mainNav.open {
    display: flex;
  }
  #mainNav a {
    padding: 11px 0;
    font-size: 14px;
  }
  .hamburger {
    display: block;
  }
  .btn-join {
    padding: 8px 10px;
    font-size: 12px;
  }
  .search-inner {
    padding: 10px 0;
  }
  .hero {
    padding: 34px 0 46px;
  }
  h1 {
    font-size: 42px;
  }
  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .hero-actions a {
    text-align: center;
  }
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 13px;
  }
  .hero-visual > img {
    min-height: 260px;
  }
  .live-note {
    right: 8px;
    bottom: 12px;
  }
  .section {
    padding: 50px 0;
  }
  .feature-grid,
  .video-grid,
  .news-list,
  .qa-grid {
    grid-template-columns: 1fr;
  }
  .video-thumb {
    height: 220px;
  }
  .feature-row,
  .feature-row:nth-child(even) {
    grid-template-columns: 1fr;
    padding: 21px;
  }
  .feature-row:nth-child(even) figure {
    order: 0;
  }
  .news-card,
  .qa-card {
    grid-template-columns: 120px 1fr;
  }
  .news-card > img,
  .qa-card > img {
    height: 100%;
    min-height: 160px;
  }
  .news-card > div,
  .qa-card > div {
    padding: 13px;
  }
  .news-card h2,
  .qa-card h2 {
    font-size: 16px;
  }
  .article-content {
    padding: 22px;
  }
  .article-body h2 {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* 独立栏目版式：捷克城市 */
.city-hero {
  padding: 66px 0;
  overflow: hidden;
  background: linear-gradient(115deg, #edf4ff 0%, #fffdfa 55%, #fff0dd 100%);
}
.city-hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 50px;
  align-items: center;
}
.city-hero span,
.street-opening > .container > span,
.app-hero span,
.about-manifesto span,
.join-banner span,
.contact-hero span {
  color: #c65f34;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.05em;
}
.city-hero h1,
.street-opening h1,
.app-hero h1,
.about-manifesto h1,
.join-banner h1,
.contact-hero h1 {
  max-width: 680px;
  margin: 9px 0 15px;
}
.city-hero p,
.street-opening > .container > p,
.app-hero p,
.about-manifesto p,
.join-banner p,
.contact-hero p {
  color: var(--muted);
  font-size: 16px;
}
.city-hero figure {
  position: relative;
  margin: 0;
}
.city-hero figure img {
  display: block;
  width: 100%;
  border: 7px solid #fff;
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.city-hero figcaption {
  position: absolute;
  bottom: -14px;
  left: 24px;
  padding: 7px 12px;
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.city-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 25px;
}
.city-badges b {
  padding: 6px 11px;
  border: 1px solid #d8e5ff;
  border-radius: 99px;
  color: var(--blue);
  background: #fff;
  font-size: 12px;
}
.city-route {
  padding-top: 84px;
}
.route-line {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.route-line::before {
  position: absolute;
  top: 26px;
  right: 15%;
  left: 15%;
  height: 2px;
  background: #cfe0ff;
  content: "";
}
.route-line article {
  position: relative;
  padding: 0 8px 0 44px;
}
.route-line b {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--orange);
  font-size: 12px;
  z-index: 1;
}
.route-line h3 {
  margin: 38px 0 5px;
  color: var(--blue-dark);
  font-size: 21px;
}
.route-line p {
  min-height: 80px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.route-line small {
  color: #9b6b53;
  font-size: 12px;
  font-weight: 800;
}
.city-log {
  padding-top: 20px;
}
.city-log-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  align-items: stretch;
}
.log-cards {
  display: grid;
  gap: 18px;
}
.log-cards article {
  padding: 28px;
  border-radius: 18px;
  color: #fff;
  background: var(--blue);
}
.log-cards article + article {
  color: var(--ink);
  background: #ffe9ce;
}
.log-cards span {
  font-size: 12px;
  font-weight: 900;
  opacity: 0.82;
}
.log-cards h2 {
  margin: 8px 0;
  font-size: 24px;
  line-height: 1.3;
}
.log-cards p {
  margin: 0;
  font-size: 14px;
  opacity: 0.9;
}
.city-log figure {
  margin: 0;
}
.city-log img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  border-radius: 18px;
  object-fit: cover;
}

/* 独立栏目版式：街头风景 */
.street-opening {
  padding: 62px 0 40px;
  background: #fffaf1;
}
.street-collage {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 16px;
  margin-top: 32px;
}
.street-collage figure {
  position: relative;
  min-height: 250px;
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
}
.street-collage figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.street-collage .street-main {
  grid-row: span 2;
  min-height: 520px;
}
.street-collage figcaption {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 5px 9px;
  border-radius: 7px;
  color: #fff;
  background: rgba(25, 51, 74, 0.8);
  font-size: 12px;
}
.street-collage article {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  justify-content: end;
  padding: 27px;
  border-radius: 18px;
  background: var(--blue);
  color: #fff;
}
.street-collage article b {
  color: #d8ee75;
  font-size: 12px;
}
.street-collage article h2 {
  margin: 8px 0;
  font-size: 27px;
  line-height: 1.28;
}
.street-collage article p {
  margin: 0;
  font-size: 14px;
  opacity: 0.92;
}
.street-notes {
  background: linear-gradient(180deg, #fff, #f3f7ff);
}
.street-notes-head {
  display: flex;
  gap: 35px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 28px;
}
.street-notes-head h2 {
  margin: 0;
  color: var(--blue-dark);
  font-size: 35px;
}
.street-notes-head p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
}
.distance-list {
  border-top: 1px solid #cddbf0;
}
.distance-list article {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 32px;
  align-items: center;
  padding: 23px 0;
  border-bottom: 1px solid #cddbf0;
}
.distance-list strong {
  color: var(--orange);
  font-size: 27px;
}
.distance-list h3 {
  margin: 0 0 4px;
  color: var(--blue-dark);
  font-size: 21px;
}
.distance-list p {
  margin: 0;
  color: var(--muted);
}
.street-sound {
  background: var(--blue);
  color: #fff;
}
.street-sound > .container {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 50px;
  align-items: center;
}
.street-sound span {
  color: #d9ef77;
  font-size: 13px;
  font-weight: 900;
}
.street-sound h2 {
  margin: 7px 0;
  font-size: 36px;
  line-height: 1.25;
}
.street-sound p {
  color: #d6e4ff;
}
.street-sound .btn-primary {
  background: #fff;
  color: var(--blue);
}
.sound-bars {
  display: flex;
  height: 170px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
}
.sound-bars i {
  display: block;
  width: 15px;
  border-radius: 10px;
  background: #d9ef77;
}
.sound-bars i:nth-child(1) {
  height: 35px;
}
.sound-bars i:nth-child(2) {
  height: 93px;
}
.sound-bars i:nth-child(3) {
  height: 61px;
}
.sound-bars i:nth-child(4) {
  height: 125px;
}
.sound-bars i:nth-child(5) {
  height: 77px;
}
.sound-bars i:nth-child(6) {
  height: 102px;
}
.sound-bars i:nth-child(7) {
  height: 45px;
}
.sound-bars small {
  position: absolute;
  margin-top: 130px;
  color: #d6e4ff;
}

/* 独立栏目版式：APP */
.app-hero {
  overflow: hidden;
  padding: 60px 0 0;
  background: linear-gradient(125deg, #edf4ff, #fff5e7);
}
.app-hero-grid {
  display: grid;
  grid-template-columns: 0.62fr 1.08fr;
  gap: 74px;
  align-items: center;
}
.app-phone {
  text-align: center;
}
.app-phone img {
  display: inline-block;
  max-height: 540px;
  margin-bottom: -70px;
  border: 8px solid #fff;
  border-radius: 32px 32px 0 0;
  box-shadow: 0 18px 46px rgba(40, 100, 220, 0.2);
}
.app-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}
.app-pills b {
  padding: 6px 11px;
  border-radius: 7px;
  color: var(--blue);
  background: #fff;
  font-size: 12px;
}
.app-flow {
  background: #fff;
}
.phone-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.phone-flow article {
  position: relative;
  min-height: 192px;
  padding: 24px;
  border-radius: 18px;
  background: #f1f6ff;
}
.phone-flow article:nth-child(2) {
  background: #fff0df;
}
.phone-flow article:nth-child(3) {
  background: #eef6db;
}
.phone-flow article:nth-child(4) {
  background: #e9f1f7;
}
.phone-flow b {
  color: var(--orange);
  font-size: 28px;
}
.phone-flow h3 {
  margin: 26px 0 5px;
  color: var(--blue-dark);
  font-size: 19px;
}
.phone-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
.app-interface {
  background: #f7fbff;
}
.app-interface-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 46px;
  align-items: center;
}
.interface-copy h2 {
  color: var(--blue-dark);
  font-size: 34px;
  line-height: 1.3;
}
.interface-copy p,
.interface-copy li {
  color: var(--muted);
}
.interface-copy ul {
  padding-left: 19px;
}
.interface-copy li::marker {
  color: var(--orange);
}
.interface-cards {
  display: grid;
  gap: 12px;
}
.interface-cards article {
  padding: 18px;
  border-left: 4px solid var(--blue);
  border-radius: 0 12px 12px 0;
  background: #fff;
  box-shadow: 0 7px 18px rgba(25, 51, 74, 0.06);
}
.interface-cards article:nth-child(2) {
  border-color: var(--orange);
}
.interface-cards article:nth-child(3) {
  border-color: var(--lime);
}
.interface-cards span,
.interface-cards small {
  display: block;
  color: #758293;
  font-size: 12px;
}
.interface-cards b {
  display: block;
  margin: 4px 0;
  color: var(--blue-dark);
}

/* 独立栏目版式：关于 */
.about-manifesto {
  padding: 68px 0;
  background: #19334a;
  color: #fff;
}
.about-manifesto-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 46px;
  align-items: center;
}
.about-manifesto span {
  color: #dbe874;
}
.about-manifesto h1 {
  color: #fff;
}
.about-manifesto h1 em {
  color: #ffae79;
}
.about-manifesto p {
  color: #d9e5f1;
}
.about-manifesto blockquote {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--orange);
  color: #fff0db;
  font-weight: 800;
}
.about-manifesto figure {
  margin: 0;
}
.about-manifesto img {
  width: 100%;
  border: 7px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
}
.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.principle-grid article {
  padding: 28px;
  border-radius: 18px;
  background: #fff9ef;
}
.principle-grid article:nth-child(2) {
  background: #eef5ff;
}
.principle-grid article:nth-child(3) {
  background: #f2f7e3;
}
.principle-grid b {
  color: var(--orange);
}
.principle-grid h2 {
  margin: 26px 0 7px;
  color: var(--blue-dark);
  font-size: 28px;
}
.principle-grid p {
  margin: 0;
  color: var(--muted);
}
.about-number-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--orange);
}
.about-number-band > div {
  min-height: 155px;
  padding: 25px max(20px, calc((100vw - 1160px) / 2));
  border-right: 1px solid rgba(255, 255, 255, 0.25);
}
.about-number-band b {
  display: block;
  color: white;
  font-size: 43px;
  line-height: 1.1;
}
.about-number-band span {
  color: #fff5eb;
  font-size: 13px;
}
.about-timeline ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 0;
  list-style: none;
}
.about-timeline li {
  position: relative;
  padding: 25px 0 0 25px;
  border-top: 3px solid var(--blue);
}
.about-timeline li::before {
  position: absolute;
  top: -10px;
  left: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--orange);
  content: "";
}
.about-timeline b {
  color: var(--blue-dark);
  font-size: 20px;
}
.about-timeline p {
  color: var(--muted);
}

/* 独立栏目版式：加入 */
.join-banner {
  padding: 68px 0;
  text-align: center;
  background: linear-gradient(135deg, #fff1df, #edf5ff);
}
.join-banner .container {
  max-width: 820px;
}
.join-banner p {
  margin: 0 auto;
}
.join-roadmap {
  padding-top: 50px;
}
.join-roadmap > .container {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 50px;
  align-items: center;
}
.roadmap-visual {
  position: sticky;
  top: 20px;
}
.roadmap-visual img {
  width: 100%;
  min-height: 510px;
  border-radius: 22px;
  object-fit: cover;
}
.roadmap-steps {
  display: grid;
  gap: 18px;
}
.roadmap-steps article {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 16px;
  align-items: start;
}
.roadmap-steps b {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--blue);
}
.roadmap-steps article:nth-child(2) b {
  background: var(--orange);
}
.roadmap-steps article:nth-child(3) b {
  color: var(--ink);
  background: var(--lime);
}
.roadmap-steps article:nth-child(4) b {
  background: #6187a9;
}
.roadmap-steps h2 {
  margin: 0 0 4px;
  color: var(--blue-dark);
  font-size: 24px;
}
.roadmap-steps p {
  margin: 0;
  color: var(--muted);
}
.join-check {
  background: #fffdf7;
}
.check-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.check-grid article {
  padding: 22px;
  border: 1px solid #dfe8f1;
  border-radius: 16px;
  background: white;
}
.check-grid i {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: #eaf2ff;
  font-style: normal;
  font-weight: 900;
}
.check-grid h3 {
  margin: 22px 0 6px;
  color: var(--blue-dark);
}
.check-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* 独立栏目版式：联系 */
.contact-hero {
  padding: 58px 0;
  background: #f0f7ff;
}
.contact-hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.contact-hero figure {
  margin: 0;
}
.contact-hero img {
  width: 100%;
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.contact-grid article {
  padding: 25px;
  border-radius: 17px;
  background: #fff5e8;
}
.contact-grid article:nth-child(2) {
  background: #eff6ff;
}
.contact-grid article:nth-child(3) {
  background: #eef6df;
}
.contact-grid span {
  color: #c35f34;
  font-size: 12px;
  font-weight: 900;
}
.contact-grid h2 {
  margin: 24px 0 7px;
  color: var(--blue-dark);
  font-size: 23px;
}
.contact-grid p {
  min-height: 104px;
  color: var(--muted);
}
.contact-grid a {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}
.contact-board {
  background: #19334a;
}
.contact-board-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 42px;
  align-items: center;
}
.contact-form-demo {
  padding: 28px;
  border-radius: 18px;
  background: #fff;
}
.contact-form-demo h2,
.contact-board aside h2 {
  margin-bottom: 18px;
  color: var(--blue-dark);
}
.contact-form-demo label {
  display: block;
  margin: 11px 0;
  color: #5e6e7d;
  font-size: 13px;
  font-weight: 800;
}
.contact-form-demo input,
.contact-form-demo textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px;
  border: 1px solid #dbe4ee;
  border-radius: 8px;
  color: #789;
  background: #f8fbfd;
  resize: none;
}
.contact-form-demo textarea {
  min-height: 68px;
}
.contact-form-demo button {
  padding: 10px 15px;
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: var(--orange);
  font-weight: 900;
  cursor: pointer;
}
.contact-board aside {
  color: #dbe7f4;
}
.contact-board aside h2 {
  color: #fff;
}
.contact-qr {
  display: flex;
  gap: 14px;
  align-items: center;
  margin: 14px 0;
}
.contact-qr img {
  width: 76px;
  height: 76px;
  padding: 4px;
  border-radius: 7px;
  background: #fff;
}
.contact-qr p {
  margin: 0;
  font-size: 13px;
}
.contact-qr b {
  color: #dbe874;
}

@media (max-width: 900px) {
  .city-hero-grid,
  .city-log-grid,
  .street-sound > .container,
  .app-hero-grid,
  .app-interface-grid,
  .about-manifesto-grid,
  .join-roadmap > .container,
  .contact-hero-grid,
  .contact-board-grid {
    grid-template-columns: 1fr;
  }
  .phone-flow,
  .principle-grid,
  .check-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-number-band {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-number-band > div {
    padding: 25px;
  }
  .about-timeline ol {
    grid-template-columns: 1fr;
  }
  .roadmap-visual {
    position: static;
  }
  .roadmap-visual img {
    min-height: 280px;
    max-height: 400px;
  }
}
@media (max-width: 680px) {
  .city-hero,
  .street-opening,
  .app-hero,
  .about-manifesto,
  .join-banner,
  .contact-hero {
    padding: 45px 0;
  }
  .city-route {
    padding-top: 58px;
  }
  .route-line,
  .street-collage,
  .phone-flow,
  .principle-grid,
  .check-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .route-line::before {
    display: none;
  }
  .route-line article {
    padding-left: 48px;
  }
  .route-line p {
    min-height: 0;
  }
  .city-log-grid {
    grid-template-columns: 1fr;
  }
  .street-collage .street-main {
    grid-row: auto;
    min-height: 290px;
  }
  .street-collage figure {
    min-height: 200px;
  }
  .street-notes-head {
    display: block;
  }
  .street-notes-head h2 {
    margin-bottom: 10px;
  }
  .distance-list article {
    grid-template-columns: 80px 1fr;
    gap: 12px;
  }
  .street-sound h2 {
    font-size: 30px;
  }
  .app-hero-grid {
    gap: 24px;
  }
  .app-phone {
    order: 2;
  }
  .app-phone img {
    max-height: 380px;
    margin-bottom: -45px;
  }
  .phone-flow {
    gap: 10px;
  }
  .about-number-band {
    grid-template-columns: 1fr 1fr;
  }
  .about-number-band b {
    font-size: 33px;
  }
  .contact-grid p {
    min-height: 0;
  }
  .contact-board-grid {
    gap: 26px;
  }
}