:root {
  --bg: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --glass: rgba(255, 255, 255, 0.8);
  --glass-stroke: rgba(255, 255, 255, 0.67);
  --card-glass: rgba(255, 255, 255, 0.8);
  --blue: #0071e3;
  --teal: #00abc7;
  --section-gap: 0px;
  --content-max: 1440px;
  --content-pad-x: 64px;
  --content-pad-y: 0px;
  --content-pad-adaptive: max(var(--content-pad-x), calc((100vw - var(--content-max)) / 2 + var(--content-pad-x)));
  --pad-64: max(64px, calc((100vw - var(--content-max)) / 2 + 64px));
  --pad-80: max(80px, calc((100vw - var(--content-max)) / 2 + 80px));
  --pad-96: max(96px, calc((100vw - var(--content-max)) / 2 + 96px));
  --header-pad-x: 56px;
  --header-pad-adaptive: max(var(--header-pad-x), calc((100vw - var(--content-max)) / 2 + var(--header-pad-x)));
  --hero-offset-x: 0px;
  --hero-offset-adaptive: 50%;
  --radius-16: 16px;
  --radius-20: 20px;
  --radius-24: 24px;
  --radius-44: 44px;
  --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.2);
  --ease-apple: cubic-bezier(0.22, 0.61, 0.36, 1);
}

@font-face {
  font-family: "Geist";
  src: local("Geist");
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: local("Inter");
  font-display: swap;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Geist, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

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

.will-change-transform {
  will-change: transform;
}

.will-change-transform-opacity {
  will-change: transform, opacity;
}

.page {
  width: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: #fff;
  overflow-x: hidden;
  transition: opacity 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.beta-closing .page {
  transition-duration: 220ms;
}

body.beta-open {
  overflow: hidden;
}

.content {
  display: flex;
  flex-direction: column;
  gap: var(--section-gap);
  padding: var(--content-pad-y) 0;
}

.full-bleed {
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

.hero {
  position: relative;
  height: 900px;
  width: 100%;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translate3d(0, var(--hero-parallax, 0px), 0) scale(1.05);
  transform-origin: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.36) 0%, rgba(0,0,0,0.22) 52%, rgba(0,0,0,0.12) 100%);
  pointer-events: none;
  z-index: 1;
}

.hero-bottom-fade {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 170px;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(244,245,247,0.8) 72%, #f4f5f7 100%);
  pointer-events: none;
  z-index: 1;
}

.hero-title {
  position: absolute;
  left: 50%;
  top: 335px;
  width: min(720px, 90vw);
  font-size: 96px;
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -1.2px;
  color: #fff;
  text-align: center;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-subtitle {
  position: absolute;
  left: 50%;
  top: 515px;
  width: min(600px, 90vw);
  font-size: 38px;
  line-height: 1.45;
  color: #f0f2f5;
  text-align: center;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-support {
  position: absolute;
  left: 50%;
  top: 610px;
  width: min(750px, 90vw);
  font-size: 20px;
  line-height: 1.45;
  color: #d4d8de;
  text-align: center;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-cta {
  position: absolute;
  left: 50%;
  top: 686px;
  transform: translateX(-50%);
  padding: 14px 26px;
  border-radius: 999px;
  border: none;
  background: #ffffff;
  color: #1d1d1f;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  z-index: 2;
}

.header {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 72px;
  padding: 20px var(--header-pad-adaptive);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  z-index: 100;
  transition: background-color 0.42s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.42s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.logo {
  width: 125px;
  height: 32px;
  background-image: url("../assets/images/img-027.png");
  background-image: image-set(url("../assets/images/img-027.avif") type("image/avif"), url("../assets/images/img-027.webp") type("image/webp"), url("../assets/images/img-027.png") type("image/png"));
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  filter: drop-shadow(0 0 2px rgba(255,255,255,0.3));
  cursor: pointer;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
  font-weight: 500;
  color: #3a3a3c;
}

.nav a {
  color: inherit;
  text-decoration: none;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease-apple);
}

.nav a:hover::after { transform: scaleX(1); }

.header-cta {
  padding: 9px 16px;
  background: var(--teal);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 1px 8px rgba(0,95,204,0.2);
  cursor: pointer;
}

.header-cta.is-hidden { display: none; }

.header.is-why-active {
  background: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.header.is-why-active .header-cta.is-hidden {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  animation: headerCtaIn 0.45s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes headerCtaIn {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.why {
  background: #f4f5f7;
  padding: 112px var(--pad-96) 120px;
  display: flex;
  flex-direction: column;
  gap: 72px;
  min-height: 903px;
}

.why-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 56px;
  width: 100%;
}

.why-text {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: 520px;
  flex: 0 0 520px;
}

.why-title {
  margin: 0;
  font-size: 56px;
  font-weight: 600;
  line-height: 1.08;
  color: #1d1d1f;
}

.why-text p {
  margin: 0;
  width: 100%;
  font-size: 20px;
  line-height: 1.5;
  color: var(--muted);
}

.why-hero-img {
  width: 720px;
  height: 760px;
  background-size: cover;
  background-position: center;
  border-radius: 0;
  flex: 0 0 720px;
}

.why-highlights {
  display: flex;
  gap: 24px;
  padding: 0 var(--pad-96);
  justify-content: space-between;
  width: 100%;
}

.why-highlight-card {
  width: 413px;
  height: 164px;
  border-radius: 24px;
  border: 1px solid #e5e5ea;
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.07);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 0 0 413px;
  contain: content;
}

.why-highlight-card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: #1d1d1f;
}

.why-highlight-card p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
}

.why-cards {
  background: transparent;
  padding: 120px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.why-cards-intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}

.why-cards-intro h2 {
  margin: 0;
  font-size: 56px;
  font-weight: 600;
  line-height: 1.05;
}

.why-cards-intro p {
  margin: 0;
  font-size: 20px;
  line-height: 1.45;
  font-weight: 500;
  color: var(--muted);
}

.photo-wall {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  width: 100%;
  background: transparent;
  border-radius: 0;
  justify-content: space-between;
}

.photo-card {
  position: relative;
  height: 547px;
  width: 411px;
  border-radius: 24px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  --photo-parallax-y: 0px;
  transform: translate3d(0, var(--photo-parallax-y), 0) scale(1);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.12);
  transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 180ms cubic-bezier(0.22, 1, 0.36, 1);
  flex: 0 0 411px;
  contain: content;
  z-index: 0;
}

.photo-wall .photo-card:hover {
  transform: translate3d(0, var(--photo-parallax-y), 0) scale(1.03);
  box-shadow: 0 22px 52px rgba(15, 23, 42, 0.2);
  z-index: 2;
}

.photo-wall .photo-card.is-hovered {
  transform: translate3d(0, var(--photo-parallax-y), 0) scale(1.03);
  box-shadow: 0 22px 52px rgba(15, 23, 42, 0.2);
  z-index: 2;
}

.photo-wall .photo-card:active {
  transform: translate3d(0, var(--photo-parallax-y), 0) scale(1.02);
}

.audience {
  background: #fffefc;
  height: 447px;
  padding: 120px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.audience-title {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.audience-title .title-main {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.6px;
  color: #1d1d1f;
}

.audience-title .title-sub {
  font-size: 40px;
  font-weight: 500;
  line-height: 1.35;
  color: #6e6e73;
}

.audience-grid {
  display: flex;
  gap: 44px;
  width: 100%;
  margin: 0;
  justify-content: center;
}

.audience-card {
  background: transparent;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  flex: 1;
  contain: content;
}

.audience-card h4 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: #1d1d1f;
}

.audience-card p {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.65;
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
}

.audience-card .icon {
  width: 40px;
  height: 40px;
  color: #8e8e93;
}

.icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.highlights {
  background: #ffffff;
  padding: 120px var(--pad-96) 96px;
  display: flex;
  flex-direction: column;
  gap: 64px;
  overflow: hidden;
  min-height: 920px;
  align-items: flex-start;
}

.highlights-title {
  display: flex;
  align-items: flex-end;
  gap: 16px;
}

.highlights-title .title-main {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.6px;
  color: #1d1d1f;
}

.highlights-title .title-sub {
  font-size: 40px;
  font-weight: 500;
  color: #6e6e73;
  line-height: 1.35;
}

.highlights-carousel {
  position: relative;
  width: calc(100% + var(--pad-96));
  margin-right: calc(var(--pad-96) * -1);
  contain: layout paint style;
}

.highlights-viewport {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  height: 514px;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  cursor: grab;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
  overscroll-behavior-x: contain;
  contain: layout paint;
}

.highlights-track {
  display: flex;
  gap: 16px;
  width: max-content;
  align-items: flex-start;
  padding-right: 0;
}

.highlight-card {
  width: 400px;
  height: 514px;
  aspect-ratio: 400 / 514;
  border-radius: 20px;
  overflow: hidden;
  cursor: default;
  flex: 0 0 auto;
  transform: translateZ(0);
  scroll-snap-align: start;
  scroll-snap-stop: always;
  contain: layout paint style;
}

.highlight-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, 10px, 0);
  transition: opacity 0.9s var(--ease-apple), transform 0.9s var(--ease-apple);
}

.highlights-viewport::-webkit-scrollbar { display: none; }
.highlights-viewport { scrollbar-width: none; }

.highlights-viewport:focus-visible {
  outline: 2px solid rgba(0, 113, 227, 0.75);
  outline-offset: 6px;
}

.highlights-carousel.is-dragging .highlights-viewport {
  cursor: grabbing;
  user-select: none;
  scroll-behavior: auto;
}

.highlights-carousel.is-dragging .highlight-card {
  pointer-events: none;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.34);
  color: #1d1d1f;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.16);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  z-index: 3;
  opacity: 0.2;
  transition: opacity 220ms var(--ease-apple), transform 220ms var(--ease-apple), background-color 220ms var(--ease-apple);
}

.carousel-arrow span {
  font-size: 22px;
  line-height: 1;
  transform: translateY(-1px);
  color: #efecec;
}

.carousel-arrow-prev {
  left: 12px;
}

.carousel-arrow-next {
  right: 12px;
}

.highlights-carousel:hover .carousel-arrow,
.highlights-carousel:focus-within .carousel-arrow {
  opacity: 0.88;
}

.carousel-arrow:hover {
  background-color: rgba(0, 0, 0, 0.1);
  /* 半透明黑色背景，可改为其他高亮色 */
  opacity: 0.9;
}

.carousel-arrow:focus-visible {
  outline: 2px solid rgba(0, 113, 227, 0.75);
  outline-offset: 2px;
}

.carousel-arrow.is-disabled,
.carousel-arrow:disabled {
  opacity: 0;
  pointer-events: none;
}

.carousel-edge-fade {
  display: none;
}

.carousel-grab-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.carousel-a11y-help {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

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

  .highlights-viewport {
    scroll-behavior: auto;
  }
  .route-viewport {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-lines span,
  .scroll-unlock,
  .carousel-arrow,
  .highlight-card img {
    transition-duration: 120ms;
  }
}

.highlights.is-revealed .highlight-card img {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, 0, 0);
}

.process {
  background: #ffffff;
  padding: 120px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 64px;
  align-items: center;
}

.process-title {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.6px;
  color: #1d1d1f;
}

.process-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 1088px;
  height: 28px;
}

.flow-dot {
  width: 28px;
  height: 28px;
  border-radius: 14px;
  background: #e9eef5;
  color: #3a4a5e;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
}

.flow-line {
  height: 1px;
  width: 300px;
  background: #e5e5ea;
}

.process-grid {
  display: flex;
  gap: 64px;
  width: 100%;
  justify-content: center;
}

.process-card {
  background: transparent;
  border-radius: 0;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 320px;
  cursor: default;
  contain: content;
}

.process-card h4 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  color: #1d1d1f;
}

.process-card p {
  margin: 0;
  font-size: 17px;
  color: var(--muted);
  line-height: 1.6;
  width: 304px;
}

.process-img {
  width: 100%;
  height: 264px;
  border-radius: 20px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  box-shadow: 0 16px 42px -10px rgba(0,0,0,0.1);
  contain: layout paint style;
}

.roadmap {
  background: #ffffff;
  padding: 120px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.roadmap-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.roadmap-title {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.8px;
  color: #1d1d1f;
}

.roadmap-head p {
  margin: 0;
  font-size: 20px;
  color: var(--muted);
  line-height: 1.5;
  font-weight: 500;
  width: 760px;
}

.roadmap-card {
  display: flex;
  flex-direction: column;
  gap: 34px;
  background: transparent;
  border: none;
  width: 100%;
  contain: content;
}

.roadmap-rail {
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  height: 20px;
}

.rail-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c7c7cc;
}

.rail-line {
  flex: 1;
  height: 1px;
  background: #dcdce1;
}

.roadmap-stages {
  display: flex;
  gap: 88px;
  justify-content: space-between;
  width: 100%;
}

.roadmap-phase {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.phase-tag {
  font-size: 12px;
  font-weight: 600;
  color: #8e8e93;
  letter-spacing: 0.8px;
}

.phase-title {
  font-size: 28px;
  font-weight: 600;
  color: #1d1d1f;
}

.phase-body {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.62;
}

.diff {
  background: #fff;
  padding-top: 40px;
  padding-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.diff-head p {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
  line-height: 1.5;
}

.compare-card {
  border-radius: 20px;
  border: 1px solid #e5e5ea;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  padding: 16px 18px;
  background: #ffffff;
  border-top: 1px solid #eceef2;
  font-size: 14px;
  font-weight: 600;
}

.compare-row.head {
  background: #f4f6f8;
  border-top: none;
  font-size: 15px;
}

.compare-row.alt { background: #fcfcfd; }

.compare-row .center { text-align: center; }

.compare-row .muted { color: #8e8e93; font-weight: 500; }

.compare-row .teal { color: var(--teal); font-weight: 700; }

.benefits {
  background: #ffffff;
  padding: 120px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.benefits-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.benefits-title {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.8px;
  color: #1d1d1f;
}

.benefits-head p {
  margin: 0;
  font-size: 20px;
  color: var(--muted);
  line-height: 1.55;
  font-weight: 500;
  width: 760px;
}

.benefits-row {
  display: flex;
  flex-direction: column;
  gap: 30px;
  width: 100%;
}

.benefit-feature {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px;
  border-radius: 24px;
  border: 1px solid #ececf1;
  background: #ffffff;
  box-shadow: 0 6px 20px rgba(0,0,0,0.04);
}

.benefit-feature-img {
  width: 320px;
  height: 210px;
  border-radius: 20px;
  background-size: cover;
  background-position: center;
  flex: 0 0 auto;
}

.benefit-feature-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.benefit-feature-body h3 {
  margin: 0;
  font-size: 34px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.benefit-feature-body p {
  margin: 0;
  font-size: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.benefits-grid {
  display: flex;
  gap: 30px;
  width: 100%;
}

.benefit-card {
  border-radius: 24px;
  border: 1px solid #ececf1;
  background: #ffffff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
  min-width: 260px;
  cursor: default;
  contain: content;
}

.benefit-card-img {
  width: 100%;
  height: 210px;
  border-radius: 16px;
  background-size: cover;
  background-position: center;
}

.benefit-card h4 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  color: #1d1d1f;
}

.benefit-card p {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
  line-height: 1.55;
}

.privacy {
  background: #ffffff;
  padding: 120px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 72px;
}

.privacy-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.privacy-title {
  font-size: 56px;
  font-weight: 600;
  color: #1d1d1f;
}

.privacy-head p {
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  color: var(--muted);
  line-height: 1.5;
}

.privacy-principles {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.privacy-principle {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  contain: content;
}

.privacy-principle .icon {
  width: 40px;
  height: 40px;
  color: #a1a1a6;
  flex: 0 0 auto;
}

.privacy-principle h4 {
  margin: 0;
  font-size: 30px;
  font-weight: 600;
  font-family: Inter, Geist, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #1d1d1f;
}

.privacy-principle p {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  font-family: Inter, Geist, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #4a4a4f;
}

.privacy-principle .principle-text {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.privacy-foot {
  background: #ffffff;
  border-top: 1px solid #e5e5e7;
  padding: 20px 0 0;
  font-size: 16px;
  font-weight: 500;
  color: #6e6e73;
}

.faq {
  background: #fff;
  padding-top: 40px;
  padding-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq .section-title {
  font-size: 38px;
}

.faq-item {
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid #dadadf;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  cursor: pointer;
}

.faq-item.alt { background: #fafafc; }

.faq-item h4 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.faq-item p {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.5;
}

.final-cta {
  background: #ffffff;
  padding: 64px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-radius: 24px;
}

.final-title {
  margin: 0;
  color: #1d1d1f;
  font-size: 40px;
  font-weight: 600;
}

.final-sub {
  margin: 0;
  width: 100%;
  color: #6e6e73;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.5;
}

.final-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.final-btn {
  height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  background: #00abc7;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border: none;
  box-shadow: 0 2px 10px #0000001a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.anchor-spacer { height: 0; }

.footer {
  background: #f5f5f7;
  padding: 40px var(--pad-96);
  display: flex;
  flex-direction: column;
  gap: 20px;
  color: var(--muted);
  font-size: 12px;
}

.footer-logo {
  width: 91px;
  height: 24px;
  object-fit: contain;
}

.footer-top-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: flex-start;
}

.footer-brand {
  width: 320px;
}

.footer-title {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.footer-links {
  width: 420px;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-self: flex-end;
  text-align: right;
}

.link-strong { color: #1d1d1f; font-weight: 500; }

.footer-divider {
  height: 1px;
  background: #d2d2d7;
  width: 100%;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #6e6e73;
  font-size: 12px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-apple);
  z-index: 999;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  width: min(720px, 90vw);
  background: rgba(255,255,255,0.9);
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 30px 80px rgba(0,0,0,0.25);
  opacity: 0;
  contain: content;
  transition: opacity 0.4s var(--ease-apple), transform 0.4s var(--ease-apple);
  z-index: 1000;
}

.modal.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px 0;
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  border: none;
}

.modal-body {
  padding: 12px 20px 20px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 15px;
}

.modal-actions {
  padding: 0 20px 20px;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.btn-secondary {
  height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(0,0,0,0.06);
  color: #111;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

.btn-primary {
  height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

.beta-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.32);
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 1300;
}

.beta-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.beta-modal {
  position: fixed;
  left: 50%;
  top: 50%;
  width: min(480px, 92vw);
  padding: 24px 28px;
  border-radius: 24px;
  border: 1px solid #ededed;
  background: #fff;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0);
  transform: translate(-50%, calc(-50% + 8px));
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 280ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 280ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 280ms cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 1301;
  font-family: Inter, Geist, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  contain: content;
}

.beta-modal.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.1);
}

.beta-modal.is-closing {
  opacity: 0;
  transform: translate(-50%, calc(-50% + 6px));
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  transition-duration: 220ms;
}

.beta-topbar {
  display: flex;
  justify-content: flex-end;
  width: 100%;
}

.beta-close {
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  color: #9ca3af;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.beta-panel {
  width: 100%;
}

.beta-panel-form {
  opacity: 1;
  transition: opacity 200ms ease;
}

.beta-panel-form.is-fading-out {
  opacity: 0;
}

.beta-panel-success {
  display: none;
  opacity: 0;
}

.beta-panel-success.is-visible {
  display: block;
}

.beta-panel-success.is-fading-in {
  opacity: 1;
  transition: opacity 300ms ease;
}

.beta-title-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: center;
}

.beta-eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  color: #a1a1aa;
}

.beta-headline {
  margin: 0;
  width: 100%;
  font-size: 30px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #111827;
}

.beta-subhead {
  margin: 0;
  width: 100%;
  font-size: 15px;
  line-height: 1.45;
  color: #9ca3af;
}

.beta-form {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.beta-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.beta-label {
  font-size: 13px;
  font-weight: 500;
  color: #4b5563;
}

.beta-input-wrap,
.beta-select-trigger {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  background: #fff;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.beta-input-wrap:hover,
.beta-select:hover .beta-select-trigger {
  border-color: #d1d5db;
}

.beta-input-wrap:focus-within,
.beta-select.is-open .beta-select-trigger,
.beta-select:focus-within .beta-select-trigger {
  border-color: #00abc7;
  box-shadow: 0 0 0 3px rgba(0, 171, 199, 0.14);
}

.beta-input {
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  padding: 0 16px;
  font-size: 15px;
  color: #111827;
  border-radius: 12px;
}

.beta-input::placeholder {
  color: #9ca3af;
}

.beta-select {
  position: relative;
}

.beta-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  cursor: pointer;
  font-size: 15px;
  color: #111827;
}

.beta-chevron {
  color: #9ca3af;
  font-size: 14px;
}

.beta-select-menu {
  position: absolute;
  max-height: 130px;
    /* 限制最大高度 */
  overflow-y: auto;
    /* 超出滚动 */
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  border: 1px solid #e5e7eb;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
  padding: 6px;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
  z-index: 3;
}

.beta-select.is-open .beta-select-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.beta-option {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  border-radius: 8px;
  padding: 10px 10px;
  font-size: 14px;
  color: #111827;
  cursor: pointer;
}

.beta-select-search-wrap {
  position: sticky;
  top: 0;
  background: #fff;
  padding-bottom: 6px;
  z-index: 1;
}

.beta-select-search {
  width: 100%;
  height: 38px;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
  outline: none;
  padding: 0 12px;
  font-size: 14px;
  color: #111827;
}

.beta-select-search:focus {
  border-color: #00abc7;
  box-shadow: 0 0 0 3px rgba(0, 171, 199, 0.14);
}

.beta-country-options {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.beta-option-country {
  display: flex;
  align-items: center;
  gap: 10px;
}

.beta-option-flag {
  width: 20px;
  text-align: center;
  flex: 0 0 20px;
}

.beta-option-name {
  flex: 1;
}

.beta-option.is-match-target {
  background: #ebf8ff;
}

.beta-option:hover,
.beta-option.is-selected {
  background: #f4f5f7;
}

.beta-cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.beta-submit {
  width: 100%;
  height: 48px;
  border: none;
  border-radius: 14px;
  background: #00abc7;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: background-color 150ms ease, transform 100ms ease;
}

.beta-submit:hover {
  background: #00a2bd;
}

.beta-submit:active {
  transform: scale(0.98);
}

.beta-submit:disabled {
  cursor: default;
}

.beta-submit-text {
  opacity: 1;
  transition: opacity 150ms ease;
}

.beta-spinner {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-top-color: #fff;
  opacity: 0;
  animation: beta-spin 0.7s linear infinite;
}

.beta-submit.is-loading .beta-submit-text {
  opacity: 0;
}

.beta-submit.is-loading .beta-spinner {
  opacity: 1;
}

.beta-helper,
.beta-foot {
  margin: 0;
  font-size: 12px;
  color: #a1a1aa;
  text-align: center;
}

.beta-foot {
  margin-top: 18px;
}

.beta-panel-success {
  padding-top: 24px;
}

.beta-done {
  margin-top: 32px;
}

@keyframes beta-spin {
  to {
    transform: rotate(360deg);
  }
}

.apple-placeholder {
  position: fixed;
  inset: 0;
  background: #f5f5f7;
  display: none;
  z-index: 1200;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  padding: 40px;
  color: #1d1d1f;
}

.apple-placeholder.show { display: flex; }

.apple-placeholder h1 {
  margin: 0 0 10px;
  font-size: 36px;
  font-weight: 600;
}

.apple-placeholder p {
  margin: 0 0 24px;
  font-size: 16px;
  color: var(--muted);
}

.apple-placeholder .back-btn {
  height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

.detail-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s var(--ease-apple);
  z-index: 1200;
}

.detail-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.detail-modal {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -48%) scale(0.982);
  width: 1120px;
  height: 821px;
  background: #fff;
  border-radius: 28px;
  border: 1px solid #ece7e1;
  box-shadow: 0 24px 80px 18px rgba(15, 23, 42, 0.071);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 1201;
  align-items: center;
  /* 垂直居中 */
  justify-content: center;
  /* 水平居中 */
  overflow: auto;
  font-family: Geist, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  contain: layout paint style;
  max-width: 90%;
    /* 移动端默认占满宽度（留5%边距） */
  max-height: 90%;
    /* 防止过高溢出屏幕 */
  overflow-y: auto;
    /* 内容过多时滚动 */
}

.detail-modal.show {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.detail-cover {
  position: relative;
  height: 127px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(247, 248, 250, 0.741) 58%, rgba(237, 239, 244, 0.702) 100%);
  border: 1px solid rgba(255, 255, 255, 0.651);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.102);
}

.detail-close {
  position: absolute;
  top: 22px;
  right: 62px;
  padding: 0;
  font-size: 14px;
  font-weight: 500;
  color: #1d1d1f;
  background: transparent;
  border: none;
  box-shadow: none;
  cursor: pointer;
  height: auto;
  min-width: 0;
  line-height: 1;
  transition: opacity 0.2s ease;
}

.detail-close:hover {
  opacity: 0.7;
}

.detail-head {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  padding: 18px 22px;
  background: #fff;
  border: 1px solid #f0ece7;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.078);
}

.detail-hero h2 {
  margin: 0;
  font-size: 46px;
  font-weight: 600;
  letter-spacing: -0.9px;
  line-height: 1.16;
  color: #1d1d1f;
}

.detail-hero p {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.62;
  color: rgba(0, 0, 0, 0.6);
}

.detail-body {
  display: grid;
  grid-template-columns: 1fr 662px;
  gap: 10px;
  padding: 20px 0 20px 20px;
  height: 669px;
  background: transparent;
}

.detail-body.full-width {
  grid-template-columns: 1fr;
}

.detail-left {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.route-viewport {
  height: 613px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  background: transparent;
  overscroll-behavior-x: contain;
  contain: layout paint;
}

.route-viewport::-webkit-scrollbar { display: none; }
.route-viewport { scrollbar-width: none; }

.route-track {
  display: flex;
  gap: 20px;
  padding: 0 20px;
  width: max-content;
  height: 633px;
}

.route-card {
  width: 600px;
  background: #fff;
  border-radius: 28px;
  padding: 32px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.071);
  border: 1px solid #e5e5ea;
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-snap-align: start;
  font-family: Inter, Geist, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  height: 596px;
  contain: content;
}

.route-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.route-head h3 {
  margin: 0;
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.5px;
  line-height: 1.15;
  color: #111;
}

.route-head span {
  font-size: 15px;
  font-weight: 500;
  color: #8e8e93;
}

.route-gallery {
  display: flex;
  gap: 8px;
}

.route-gallery div {
  width: 124px;
  height: 164px;
  border-radius: 16px;
  background-color: #f1f2f4;
  background-size: cover;
  background-position: center;
}

.route-card.food-card {
  gap: 18px;
  height: 596px;
}

.route-card.food-card .route-gallery {
  display: block;
}

.route-card.food-card .route-gallery div {
  width: 100%;
  height: 340px;
  border-radius: 20px;
}

@supports (content-visibility: auto) {
  .why-cards,
  .audience,
  .highlights,
  .process,
  .roadmap,
  .benefits,
  .privacy,
  .final-cta,
  .footer {
    content-visibility: auto;
    contain-intrinsic-size: 780px;
  }

  .detail-modal .detail-body,
  .detail-modal .detail-left,
  .detail-modal .detail-right {
    content-visibility: auto;
    contain-intrinsic-size: 640px;
  }
}

.route-card h4 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: #1d1d1f;
}

.route-card p {
  margin: 0;
  font-size: 17px;
  line-height: 1.65;
  color: #6e6e73;
}

.route-pager {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.route-pager .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d1d1d6;
  transition: background 0.3s var(--ease-apple);
}

.route-pager .dot.active {
  background: #1d1d1f;
}

.detail-right {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.info-card {
  background: transparent;
  border-radius: 24px;
  border: 1px solid rgba(0, 0, 0, 0.078);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.info-title {
  font-size: 22px;
  font-weight: 600;
  color: #1d1d1f;
  letter-spacing: -0.2px;
}

.info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-size: 14px;
  color: #6e6e73;
}

.info-row.compact {
  gap: 10px;
  flex-wrap: nowrap;
}

.pill-card {
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.071);
  border-radius: 14px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-row.compact .pill-card {
  flex: 1 1 0;
  min-width: 0;
}

.pill-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.6px;
  color: #6e6e73;
}

.pill-value {
  font-size: 11px;
  font-weight: 600;
  color: #1d1d1f;
}

.metro-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.metro-title {
  font-size: 13px;
  font-weight: 600;
  color: #1d1d1f;
}

.metro-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
}

.pill.dark { background: #1d1d1f; color: #fff; }
.pill.line-orange { background: #e34f00; color: #fff; }
.pill.line-green { background: #7da300; color: #fff; }
.pill.light { background: #eaf3ff; color: #1d1d1f; font-weight: 500; }
.pill.soft { background: #f2f2f7; color: #1d1d1f; }

.tips-card { gap: 12px; }

.tips-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tip-card {
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.071);
  border-radius: 14px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tip-title {
  font-size: 12px;
  font-weight: 600;
  color: #1d1d1f;
}

.tip-body {
  font-size: 12px;
  line-height: 1.45;
  color: #424245;
}

.detail-footnote {
  font-size: 10px;
  font-weight: 300;
  color: #6e6e73;
  text-align: center;
}

.info-body {
  font-size: 14px;
  line-height: 1.55;
  color: #6e6e73;
}

.detail-modal-food .detail-body {
  grid-template-columns: 1fr;
  padding: 10px 0 20px 20px;
  gap: 10px;
  height: 669px;
}

.detail-modal-food .detail-right {
  width: 1101px;
  gap: 5px;
}

.detail-modal-food .route-viewport {
  height: 632px;
  width: 100%;
}

.detail-modal-food .route-track {
  gap: 20px;
  padding: 0 20px;
  height: 633px;
  align-items: flex-start;
}

.detail-modal-food .route-card {
  width: 600px;
  height: 623px;
  border-radius: 28px;
  border: 1px solid #e5e5ea;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.071);
  gap: 18px;
  padding: 28px;
}

.detail-modal-food .route-head h3 {
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.detail-modal-food .route-head span {
  font-size: 15px;
}

.detail-modal-food .route-card h4 {
  font-size: 18px;
}

.detail-modal-food .route-card p {
  font-size: 16px;
  line-height: 1.5;
}

.detail-modal-food .route-gallery {
  gap: 8px;
}

.detail-modal-food .route-card.food-card .route-gallery div {
  height: 340px;
  border-radius: 20px;
}

@media (max-width: 1200px) {
  .detail-modal { width: 94vw; height: 92vh; }
  .detail-body { grid-template-columns: 1fr; height: auto; }
  .route-viewport { height: 560px; }
  .route-card { width: 86vw; }
}

@media (max-width: 900px) {
  .beta-modal {
    padding: 20px;
  }
  .beta-headline {
    font-size: 28px;
  }
  .detail-cover { height: 120px; }
  .detail-hero h2 { font-size: 28px; }
  .detail-modal { height: 94vh; }
}

@media (max-width: 1280px) {
  :root {
    --content-pad-x: 48px;
    --header-pad-x: 32px;
    --hero-offset-x: 48px;
    --pad-64: 48px;
    --pad-80: 56px;
    --pad-96: 64px;
  }
  .why-row { flex-direction: column; align-items: flex-start; }
  .why-text, .why-hero-img { width: 100%; }
  .why-hero-img { height: 560px; }
  .why-highlights { flex-wrap: wrap; }
  .process-grid { flex-wrap: wrap; gap: 24px; }
  .process-flow { width: 100%; }
  .benefits-grid { flex-wrap: wrap; }
  .audience-grid { flex-wrap: wrap; }
  .photo-wall { width: 100%; flex-wrap: wrap; justify-content: center; }
  .roadmap-stages { flex-direction: column; gap: 32px; }
  .benefit-feature { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 900px) {
  :root {
    --pad-64: 24px;
    --pad-80: 24px;
    --pad-96: 32px;
  }
  .hero { height: 720px; }
  .hero-title { font-size: 48px; width: 80%; top: 260px; }
  .hero-subtitle { width: 80%; font-size: 24px; top: 360px; }
  .hero-support { width: 86%; font-size: 16px; top: 420px; }
  .hero-cta { top: 480px; }
  .nav { display: none; }
  .why { min-height: auto; }
  .why-title { font-size: 44px; }
  .why-text p { font-size: 18px; }
  .photo-wall { flex-direction: column; gap: 24px; width: 100%; align-items: center; }
  .audience { height: auto; }
  .audience-grid { flex-direction: column; width: 100%; }
  .highlights-title { flex-direction: column; align-items: flex-start; }
  .process-grid { flex-direction: column; width: 100%; justify-content: center; }
  .benefits-grid { flex-direction: column; width: 100%; justify-content: center; }
  .footer-top-row { flex-direction: column; align-items: flex-start; }
  .footer-links { text-align: left; align-self: flex-start; }
  .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
}

.error-message {
  position: absolute;
  background-color: #f44336;
  /* 红色背景 */
  color: white;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  white-space: nowrap;
  /* 防止换行 */
  z-index: 10;
  display: none;
  /* 默认隐藏，有错误时显示 */
}

/* 当错误消息有内容时显示（通过 JavaScript 控制样式或直接修改 display） */
.error-message.show {
  display: block;
}

/* 可选的尖角（小三角），模拟气泡 */
.error-message::after {
  content: '';
  position: absolute;
  top: 100%;
  /* 在消息下方 */
  left: 10px;
  border-width: 5px;
  border-style: solid;
  border-color: #f44336 transparent transparent transparent;
}

/* 鼠标悬停在 .detail-right 上时，内部的箭头应用高亮样式 */
.detail-right:hover .carousel-arrow {
  background-color: rgba(0, 21, 255, 0.864);
  /* 半透明白色背景（适合深色背景） */
  transform: scale(1.1);
  /* 轻微放大 */
  transition: all 0.2s ease;
  /* 平滑过渡 */
}