:root {
  --paper: #f4f5f1;
  --white: #ffffff;
  --ink: #111216;
  --muted: #656a73;
  --line: #cfd2d7;
  --blue: #2339ff;
  --blue-soft: #e8ebff;
  --orange: #ff5b22;
  --green: #14a66f;
  --max: 1240px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  background: rgba(244, 245, 241, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 290px;
  font-size: 15px;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.brand span { font-weight: 800; }
.brand i { width: 1px; height: 20px; background: var(--line); }
.brand strong { font-weight: 600; color: var(--muted); }

.site-header nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.site-header nav a {
  font-size: 14px;
  font-weight: 650;
  color: #4e535d;
}

.site-header nav a:hover { color: var(--blue); }

.header-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  color: var(--white);
  background: var(--ink);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 750;
}

.header-action span { margin-left: 8px; color: #98a3ff; }

.hero {
  max-width: var(--max);
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 72px;
  padding: 72px 0 58px;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--blue);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  font-weight: 750;
  text-transform: uppercase;
}

h1, h2, h3, p { letter-spacing: 0; }

h1 {
  margin: 0;
  font-size: 92px;
  line-height: 0.98;
  font-weight: 820;
}

.hero-lead {
  max-width: 570px;
  margin: 34px 0 0;
  font-size: 22px;
  line-height: 1.65;
  color: #4d535e;
}

.hero-actions, .route-actions, .store-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 50px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 750;
}

.button.primary { color: white; background: var(--ink); }
.button.primary:hover { background: var(--blue); border-color: var(--blue); }
.button.secondary { background: transparent; }
.button.secondary:hover { background: white; }
.button.compact { min-height: 44px; padding: 0 16px; }

.quick-links {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-links a {
  min-width: 0;
  padding: 18px 12px 18px 0;
  border-right: 1px solid var(--line);
}

.quick-links a + a { padding-left: 16px; }
.quick-links a:last-child { border-right: 0; }
.quick-links small { display: block; margin-bottom: 5px; color: var(--muted); font-size: 11px; }
.quick-links span { display: block; font-size: 15px; font-weight: 750; }
.quick-links a:hover span { color: var(--blue); }

.hero-visual {
  height: min(690px, calc(100vh - 150px));
  min-height: 570px;
  position: relative;
}

.hero-photo,
.hero-phone {
  position: absolute;
  margin: 0;
  overflow: hidden;
  border: 1px solid #aeb3bd;
  background: white;
  box-shadow: 0 26px 60px rgba(20, 25, 42, 0.17);
}

.hero-photo {
  left: 0;
  top: 0;
  width: 72%;
  height: 72%;
}

.hero-photo img { width: 100%; height: calc(100% - 54px); object-fit: cover; object-position: 52% center; display: block; }
.hero-phone { right: 0; bottom: 0; width: 41%; height: 72%; transform: rotate(2deg); }
.hero-phone img { width: 100%; height: calc(100% - 54px); object-fit: cover; object-position: top; display: block; }

.hero-photo figcaption,
.hero-phone figcaption {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  font-size: 13px;
  font-weight: 700;
}

.hero-photo figcaption span,
.hero-phone figcaption span { color: var(--blue); font-family: monospace; }

.hero-stamp {
  position: absolute;
  right: 31%;
  top: 42%;
  width: 120px;
  height: 120px;
  display: grid;
  place-items: center;
  background: var(--orange);
  color: white;
  border-radius: 50%;
  text-align: center;
  font-size: 17px;
  font-weight: 850;
  line-height: 1.15;
  transform: rotate(-8deg);
  box-shadow: 0 12px 30px rgba(0,0,0,0.16);
}

.numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--ink);
  color: white;
}

.numbers div {
  min-height: 160px;
  padding: 34px max(24px, calc((100vw - var(--max)) / 8));
  border-right: 1px solid #383a42;
}

.numbers strong { display: block; font-size: 42px; font-weight: 500; }
.numbers span { display: block; margin-top: 10px; color: #adb1bb; font-size: 14px; }

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 110px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 48px;
}

.section-head h2,
.record-copy h2,
.community-copy h2 {
  margin: 0;
  font-size: 62px;
  line-height: 1.08;
  font-weight: 780;
}

.section-head > p {
  max-width: 480px;
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.route-tabs {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.route-tab {
  flex: 1;
  min-height: 64px;
  border: 0;
  border-right: 1px solid var(--line);
  color: #555b65;
  background: transparent;
  cursor: pointer;
  font-weight: 700;
}

.route-tab:last-child { border-right: 0; }
.route-tab.active { color: white; background: var(--blue); }

.route-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: 520px;
  border-bottom: 1px solid var(--line);
}

.route-summary {
  padding: 52px 58px 52px 0;
  border-right: 1px solid var(--line);
}

.route-hall {
  display: inline-block;
  margin-bottom: 50px;
  padding: 8px 12px;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 13px;
  font-weight: 800;
}

.route-summary h3 { margin: 0; font-size: 42px; line-height: 1.16; }
.route-summary > p { margin: 22px 0 0; max-width: 500px; color: var(--muted); font-size: 17px; line-height: 1.75; }
.route-meta { display: flex; gap: 12px; margin-top: 28px; }
.route-meta span { padding: 8px 10px; border: 1px solid var(--line); font-size: 12px; color: #565b65; }

.route-stops { margin: 0; padding: 0; list-style: none; }
.route-stops li {
  min-height: 130px;
  padding: 26px 0 26px 42px;
  display: grid;
  grid-template-columns: 58px 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.route-stops li:last-child { border-bottom: 0; }
.route-stops li > span { font-family: monospace; color: var(--blue); font-size: 14px; }
.route-stops strong { display: block; font-size: 24px; }
.route-stops small { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; }

.venues-section { padding-top: 80px; }

.hall-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.hall-item {
  min-height: 300px;
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 28px;
  padding: 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: white;
}
.hall-code {
  width: 92px;
  height: 92px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--blue);
  font-size: 30px;
  font-weight: 850;
}
.accent-orange .hall-code { background: var(--orange); }
.accent-green .hall-code { background: var(--green); }
.accent-black .hall-code { background: var(--ink); }
.hall-item h3 { margin: 2px 0 14px; font-size: 27px; }
.hall-item p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; }
.hall-item span { display: block; margin-top: 28px; padding-top: 18px; border-top: 1px solid #e4e6e9; color: #464b54; font-size: 13px; line-height: 1.7; }

.venue-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 70px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.venue-strip article { min-height: 270px; padding: 34px 32px; border-right: 1px solid var(--line); }
.venue-strip article:last-child { border-right: 0; }
.venue-strip article > span { color: var(--blue); font-family: monospace; }
.venue-strip h3 { margin: 42px 0 12px; font-size: 25px; }
.venue-strip p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.venue-strip small { display: block; margin-top: 24px; color: #343942; font-weight: 700; line-height: 1.6; }

.record-section {
  padding: 110px max(24px, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
  color: white;
  background: var(--blue);
}

.record-copy .eyebrow { color: #bec5ff; }
.record-copy > p { max-width: 520px; margin: 28px 0 0; color: #dce0ff; font-size: 18px; line-height: 1.75; }
.record-copy ol { margin: 42px 0 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,0.28); }
.record-copy li { min-height: 64px; display: grid; grid-template-columns: 54px 1fr; align-items: center; border-bottom: 1px solid rgba(255,255,255,0.28); }
.record-copy li span { color: #aeb7ff; font-family: monospace; font-size: 13px; }
.record-copy li strong { font-size: 16px; }
.record-copy .button.primary { color: var(--ink); background: white; border-color: white; }
.record-copy .button.secondary { color: white; border-color: white; }
.record-copy .button.secondary:hover { color: var(--ink); }

.record-demo { min-height: 680px; display: grid; grid-template-columns: 0.86fr 48px 1.14fr; align-items: center; }
.demo-before, .demo-after { background: white; color: var(--ink); border: 4px solid white; box-shadow: 0 26px 50px rgba(2, 10, 76, 0.28); }
.demo-before { transform: rotate(-2deg); }
.demo-after { transform: rotate(1.5deg); }
.demo-before > span, .demo-after > span { display: block; padding: 15px 16px; color: var(--blue); font-size: 12px; font-weight: 850; }
.demo-before img { display: block; width: 100%; height: 370px; object-fit: cover; }
.demo-after img { display: block; width: 100%; height: 550px; object-fit: cover; object-position: top; }
.demo-before strong, .demo-after strong { display: block; padding: 17px; font-size: 15px; }
.demo-arrow { font-size: 34px; text-align: center; }

.toolkit-section { max-width: var(--max); margin: 0 auto; padding: 110px 0; }
.tool-list { border-top: 1px solid var(--line); }
.tool-list a {
  min-height: 92px;
  display: grid;
  grid-template-columns: 180px 1fr 40px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.tool-list span { color: var(--muted); font-size: 13px; }
.tool-list strong { font-size: 21px; }
.tool-list i { font-style: normal; font-size: 24px; color: var(--blue); }
.tool-list a:hover strong { color: var(--blue); }

.community-section {
  max-width: var(--max);
  margin: 0 auto 110px;
  display: grid;
  grid-template-columns: 1fr 520px;
  gap: 90px;
  align-items: center;
  padding: 80px;
  color: white;
  background: var(--ink);
}
.community-copy .eyebrow { color: #98a3ff; }
.community-copy p:not(.eyebrow) { max-width: 540px; margin: 28px 0 0; color: #b9bdc6; font-size: 17px; line-height: 1.75; }
.community-copy .button { margin-top: 34px; background: var(--blue); border-color: var(--blue); }
.qr-frame { margin: 0; background: #191a1e; border: 1px solid #3b3d45; }
.qr-frame img { display: block; width: 100%; height: 540px; object-fit: cover; object-position: center 58%; }
.qr-frame figcaption { padding: 20px 22px; display: flex; justify-content: space-between; gap: 20px; }
.qr-frame strong { font-size: 16px; }
.qr-frame span { color: #a5a9b2; font-size: 13px; }

footer {
  min-height: 240px;
  padding: 54px max(24px, calc((100vw - var(--max)) / 2));
  border-top: 1px solid var(--line);
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 36px; height: 36px; border-radius: 8px; }
footer > p { max-width: 760px; margin: 28px 0; color: var(--muted); line-height: 1.7; }
.source-links { display: flex; flex-wrap: wrap; gap: 22px; }
.source-links a { color: #4e535d; font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }

.mobile-bar { display: none; }
.toast {
  position: fixed;
  z-index: 50;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  padding: 12px 18px;
  color: white;
  background: var(--ink);
  border: 1px solid #464850;
  font-size: 14px;
}

@media (max-width: 1280px) {
  .hero, .section, .toolkit-section, .community-section { margin-left: 32px; margin-right: 32px; }
  .hero { gap: 42px; }
  h1 { font-size: 76px; }
  .community-section { grid-template-columns: 1fr 430px; }
}

@media (max-width: 900px) {
  body { padding-bottom: 66px; }
  .site-header { height: 62px; padding: 0 18px; }
  .brand { min-width: 0; flex: 1; }
  .brand img { width: 32px; height: 32px; }
  .brand i, .brand strong, .site-header nav, .header-action { display: none; }
  .hero { min-height: auto; margin: 0; padding: 48px 20px 58px; grid-template-columns: 1fr; gap: 48px; }
  h1 { font-size: 59px; }
  .hero-lead { font-size: 18px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .quick-links { grid-template-columns: 1fr 1fr; }
  .quick-links a:nth-child(2) { border-right: 0; }
  .quick-links a:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .hero-visual { height: 520px; min-height: 0; }
  .hero-photo { width: 74%; height: 70%; }
  .hero-phone { width: 42%; height: 72%; }
  .hero-stamp { width: 86px; height: 86px; right: 29%; font-size: 12px; }
  .numbers { grid-template-columns: 1fr 1fr; }
  .numbers div { min-height: 128px; padding: 26px 20px; border-bottom: 1px solid #383a42; }
  .numbers strong { font-size: 30px; }
  .section, .toolkit-section { margin: 0; padding: 78px 20px; }
  .section-head { display: block; margin-bottom: 34px; }
  .section-head h2, .record-copy h2, .community-copy h2 { font-size: 42px; }
  .section-head > p { margin-top: 20px; font-size: 15px; }
  .route-tabs { overflow-x: auto; }
  .route-tab { min-width: 150px; padding: 0 16px; }
  .route-panel { grid-template-columns: 1fr; }
  .route-summary { padding: 38px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .route-hall { margin-bottom: 30px; }
  .route-summary h3 { font-size: 34px; }
  .route-stops li { padding-left: 0; grid-template-columns: 48px 1fr; }
  .hall-grid { grid-template-columns: 1fr; }
  .hall-item { grid-template-columns: 86px 1fr; min-height: 0; padding: 26px 20px; gap: 18px; }
  .hall-code { width: 70px; height: 70px; font-size: 24px; }
  .venue-strip { grid-template-columns: 1fr; }
  .venue-strip article { min-height: 0; padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .venue-strip article:last-child { border-bottom: 0; }
  .venue-strip h3 { margin-top: 26px; }
  .record-section { padding: 76px 20px; grid-template-columns: 1fr; gap: 50px; }
  .record-demo { min-height: 520px; grid-template-columns: 0.86fr 30px 1.14fr; }
  .demo-before img { height: 280px; }
  .demo-after img { height: 420px; }
  .tool-list a { grid-template-columns: 100px 1fr 24px; min-height: 86px; }
  .tool-list strong { font-size: 17px; }
  .community-section { margin: 0; padding: 76px 20px; grid-template-columns: 1fr; gap: 44px; }
  .qr-frame { max-width: 520px; width: 100%; margin: 0 auto; }
  .qr-frame img { height: auto; object-fit: contain; }
  footer { padding: 48px 20px 90px; }
  .mobile-bar {
    position: fixed;
    z-index: 30;
    left: 0;
    right: 0;
    bottom: 0;
    height: 66px;
    display: grid;
    grid-template-columns: 1fr 1fr 1.35fr;
    background: white;
    border-top: 1px solid var(--line);
  }
  .mobile-bar a { display: grid; place-items: center; font-size: 13px; font-weight: 750; }
  .mobile-bar .mobile-primary { color: white; background: var(--blue); }
}

@media (max-width: 420px) {
  h1 { font-size: 52px; }
  .hero-visual { height: 455px; }
  .hero-photo { height: 68%; }
  .hero-phone { width: 44%; height: 74%; }
  .hero-stamp { right: 26%; top: 40%; }
  .hall-item { grid-template-columns: 72px 1fr; }
  .hall-code { width: 60px; height: 60px; font-size: 20px; }
  .record-demo { min-height: 460px; }
  .demo-before img { height: 235px; }
  .demo-after img { height: 360px; }
  .demo-before strong, .demo-after strong { padding: 12px; font-size: 12px; }
}