:root {
  color-scheme: dark;
  --bg: #06070b;
  --panel: rgba(17, 20, 30, 0.66);
  --panel-strong: rgba(16, 20, 31, 0.86);
  --border: rgba(255, 255, 255, 0.13);
  --text: #f5f7fb;
  --muted: #a5adbd;
  --blue: #72a7ff;
  --violet: #a68cff;
  --mint: #68e1c0;
  --max-width: 1240px;
  --radius-xl: 36px;
  --radius-lg: 26px;
  --ease-story: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: auto;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  color: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

.background-system {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  perspective: 1000px;
  background: #090b10;
  z-index: 0;
}

.galaxy-container {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200vw;
  height: 200vw;
  opacity: 0.8;
  transform: translate(-50%, -50%) rotateX(60deg) rotateZ(0deg);
  transform-style: preserve-3d;
  transition: transform 1.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.galaxy {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background:
    radial-gradient(ellipse at center, rgba(168, 85, 247, 0.4) 0%, rgba(56, 189, 248, 0.1) 30%, transparent 60%),
    conic-gradient(from 0deg at 50% 50%, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.05) 20%, rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, 0.02) 60%, rgba(255, 255, 255, 0) 80%);
  mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
  animation: galaxy-rotate 120s linear infinite;
}

body[data-scene="1"] .galaxy-container { transform: translate(-50%, -50%) rotateX(70deg) rotateZ(-20deg) scale(1); opacity: 0.6; }
body[data-scene="2"] .galaxy-container { transform: translate(-50%, -50%) rotateX(45deg) rotateZ(10deg) scale(1.5); opacity: 0.8; }
body[data-scene="3"] .galaxy-container { transform: translate(-50%, -50%) rotateX(20deg) rotateZ(45deg) scale(2.5); opacity: 1; }
body[data-scene="3.5"] .galaxy-container { transform: translate(-50%, -50%) rotateX(10deg) rotateZ(67deg) scale(3.2); opacity: 0.7; }
body[data-scene="4"] .galaxy-container { transform: translate(-50%, -50%) rotateX(0deg) rotateZ(90deg) scale(4); opacity: 0.4; }
body[data-scene="5"] .galaxy-container { transform: translate(-50%, -50%) rotateX(60deg) rotateZ(0deg) scale(1.2); opacity: 0.5; }
body[data-scene="6"] .galaxy-container { transform: translate(-50%, -50%) rotateX(48deg) rotateZ(-25deg) scale(1.8); opacity: 0.75; }
body[data-scene="6.5"] .galaxy-container { transform: translate(-50%, -50%) rotateX(36deg) rotateZ(5deg) scale(2.3); opacity: 0.84; }
body[data-scene="7"] .galaxy-container { transform: translate(-50%, -50%) rotateX(24deg) rotateZ(30deg) scale(2.8); opacity: 0.95; }
body[data-scene="8"] .galaxy-container { transform: translate(-50%, -50%) rotateX(5deg) rotateZ(80deg) scale(4.2); opacity: 0.4; }
body[data-scene="9"] .galaxy-container { transform: translate(-50%, -50%) rotateX(60deg) rotateZ(0deg) scale(1.3); opacity: 0.55; }
body[data-scene="9.3"] .galaxy-container { transform: translate(-50%, -50%) rotateX(38deg) rotateZ(25deg) scale(2.1); opacity: 0.68; }
body[data-scene="9.6"] .galaxy-container { transform: translate(-50%, -50%) rotateX(22deg) rotateZ(48deg) scale(2.9); opacity: 0.78; }
body[data-scene="10"] .galaxy-container { transform: translate(-50%, -50%) rotateX(18deg) rotateZ(58deg) scale(3.4); opacity: 0.72; }
body[data-scene="11"] .galaxy-container { transform: translate(-50%, -50%) rotateX(62deg) rotateZ(-8deg) scale(1.4); opacity: 0.58; }
body[data-scene="12"] .galaxy-container { transform: translate(-50%, -50%) rotateX(28deg) rotateZ(35deg) scale(2.6); opacity: 0.82; }
body[data-scene="13"] .galaxy-container { transform: translate(-50%, -50%) rotateX(62deg) rotateZ(-8deg) scale(1.4); opacity: 0.58; }

.blob {
  position: absolute;
  filter: blur(100px);
  border-radius: 50%;
  opacity: 0.4;
  animation: background-float 20s infinite ease-in-out alternate;
}

.blob-1 {
  top: -100px;
  left: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #2d3748 0%, transparent 70%);
}

.blob-2 {
  right: -200px;
  bottom: -200px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, #1e1b4b 0%, transparent 70%);
  animation-delay: -10s;
}

.mesh-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
}

.stars-layer {
  position: absolute;
  top: -10vh;
  left: -10vw;
  width: 1px;
  height: 1px;
  border-radius: 50%;
  background: transparent;
  will-change: transform, opacity;
  transition: transform 0.15s ease-out;
}

.stars-1 { animation: twinkle-layer 4s ease-in-out infinite alternate; }
.stars-2 { animation: twinkle-layer 7s ease-in-out infinite alternate-reverse; }
.stars-3 { animation: twinkle-layer 5s ease-in-out infinite alternate; }

.shooting-stars-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform: rotate(-45deg);
}

.shooting-star {
  position: absolute;
  width: 0;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(-45deg, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 1));
  animation: shooting-tail 3000ms ease-in-out, shooting 3000ms ease-in-out;
}

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

@keyframes background-float {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -50px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes twinkle-layer {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

@keyframes shooting-tail {
  0% { width: 0; }
  30% { width: 120px; }
  100% { width: 0; }
}

@keyframes shooting {
  to { transform: translateX(1200px); }
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 38px;
  pointer-events: none;
}

.brand {
  pointer-events: auto;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 20px;
  font-weight: 760;
  letter-spacing: -0.04em;
  cursor: pointer;
}

.brand span {
  color: var(--blue);
}

.chapter-status {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.chapter-status strong {
  color: var(--text);
  font-weight: 650;
}

.chapter-divider {
  display: block;
  width: 34px;
  height: 1px;
  background: var(--border);
}

.chapter-dots {
  position: fixed;
  right: 30px;
  top: 50%;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transform: translateY(-50%);
}

.chapter-dot {
  width: 18px;
  height: 18px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.chapter-dot::before {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: inherit;
  background: rgba(255, 255, 255, 0.3);
  transition: inset 220ms ease, background 220ms ease, box-shadow 220ms ease;
}

.chapter-dot:hover::before,
.chapter-dot.is-active::before {
  inset: 4px;
  background: var(--text);
  box-shadow: 0 0 16px rgba(114, 167, 255, 0.6);
}

.story-shell {
  position: relative;
  z-index: 2;
  height: 100dvh;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-snap-type: none;
  scrollbar-width: none;
}

.story-shell.is-springing {
  --spring-y: 0px;
  transform: translate3d(0, var(--spring-y), 0);
  will-change: transform;
}

.story-shell::-webkit-scrollbar {
  display: none;
}

.story-section {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: 88px 72px 54px;
  isolation: isolate;
}

.section-inner {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.story-section.is-edge-bouncing .section-inner {
  --boundary-y: 0px;
  transform: translate3d(0, var(--boundary-y), 0);
  will-change: transform;
}

.motion-ready .reveal-item {
  opacity: 1;
  transform: none;
  transition: none;
}

.title-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.18em);
  filter: blur(2px);
  transition:
    opacity 420ms ease-out,
    transform 720ms cubic-bezier(0.16, 1, 0.3, 1),
    filter 520ms ease-out;
}

.title-char.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.motion-ready .timeline-item {
  opacity: 0;
  translate: -80px 0;
  transition:
    opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
    translate 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, translate;
}

.motion-ready .timeline-visual {
  translate: 180px 0;
  transition:
    opacity 1.8s cubic-bezier(0.16, 1, 0.3, 1),
    translate 1.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.motion-ready .reverse .timeline-item {
  translate: 80px 0;
}

.motion-ready .reverse .timeline-visual {
  translate: -180px 0;
}

.motion-ready .timeline-item.is-visible {
  opacity: 1;
  translate: 0 0;
}

.eyebrow,
.chapter-number,
.card-kicker {
  margin: 0 0 20px;
  color: #9cbbff;
  font-size: 12px;
  font-weight: 680;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.greeting-inner {
  max-width: 940px;
  text-align: center;
}

.greeting-title {
  margin: 0;
  font-size: clamp(64px, 10vw, 140px);
  line-height: 1.04;
  letter-spacing: -0.075em;
  padding-block: 0.04em 0.08em;
  overflow: visible;
}

.soft-mark {
  color: var(--violet);
  font-weight: 420;
}

.live-time {
  margin: 28px 0 8px;
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 21px);
}

.live-time time {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.lead {
  max-width: 760px;
  margin: 0 auto;
  color: #d6dbea;
  font-size: clamp(18px, 2vw, 27px);
  line-height: 1.55;
}

.opening-context {
  width: min(100%, 630px);
  max-width: 630px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 56px;
  color: #8b93a5;
  font-size: 11px;
  letter-spacing: 0.18em;
}

.scroll-cue i {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.65), transparent);
  animation: scroll-line 1.8s ease-in-out infinite;
}

.hero-layout,
.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.72fr);
  align-items: center;
  gap: clamp(48px, 8vw, 120px);
}

.hero-name {
  display: inline-flex;
  align-items: baseline;
  column-gap: 1em;
  margin: 0;
  font-size: clamp(86px, 13vw, 178px);
  line-height: 1;
  letter-spacing: 0;
  padding-block: 0.08em 0.12em;
  padding-inline: 0.02em 0.08em;
  overflow: visible;
  background: linear-gradient(120deg, #fff 20%, #bcd0ff 62%, #b99eff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hero-name .title-char {
  padding-inline: 0.08em;
  margin-inline: -0.08em;
  padding-block: 0.06em;
  margin-block: -0.06em;
  background: linear-gradient(120deg, #fff 20%, #bcd0ff 62%, #b99eff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-role {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 34px 0 22px;
  color: #d8deee;
  font-size: clamp(17px, 1.6vw, 23px);
}

.hero-role span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
}

.hero-copy .lead {
  margin: 0;
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(17px, 1.5vw, 21px);
}

.glass-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, rgba(28, 33, 49, 0.72), rgba(12, 15, 23, 0.55));
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(22px);
}

.identity-card {
  padding: 38px;
  transform-style: preserve-3d;
}

.identity-card blockquote {
  margin: 62px 0 54px;
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 620;
  line-height: 1.35;
  letter-spacing: -0.04em;
}

.identity-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.identity-tags span,
.quote-chip {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  color: #cdd4e3;
  padding: 9px 13px;
  font-size: 12px;
}

.story-grid.reverse .story-copy {
  order: 2;
}

.section-title {
  margin: 0 0 30px;
  font-size: clamp(44px, 5.6vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.065em;
  padding-bottom: 0.06em;
  overflow: visible;
}

.section-title em {
  color: var(--blue);
  font-style: normal;
}

.keep-together {
  display: inline-block;
  white-space: nowrap;
}

.story-text {
  max-width: 650px;
  margin: 0;
  color: #bac1d0;
  font-size: clamp(16px, 1.35vw, 20px);
  line-height: 1.82;
}

.evidence-line,
.closing-line {
  max-width: 650px;
  margin: 24px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--blue);
  color: #eef2fb;
  font-size: 15px;
  line-height: 1.7;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 30px;
}

.metric-row span {
  color: var(--muted);
  font-size: 11px;
}

.metric-row strong {
  display: block;
  margin-bottom: 5px;
  color: var(--text);
  font-size: 22px;
}

.story-photo {
  position: relative;
  min-height: min(67vh, 640px);
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 32px;
  background: rgba(12, 15, 23, 0.78);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transform: perspective(1100px) rotateY(-3deg);
}

.reverse .story-photo {
  transform: perspective(1100px) rotateY(3deg);
}

.story-photo img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  display: block;
  object-fit: cover;
}

.story-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 48%, rgba(5, 7, 12, 0.88) 100%);
}

.story-photo figcaption {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 24px;
  z-index: 1;
  color: #eef3ff;
  font-size: 15px;
  line-height: 1.5;
}

.story-photo figcaption span {
  display: block;
  margin-bottom: 5px;
  color: #a9c4ff;
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.2em;
}

.story-photo--stage img {
  object-position: 56% center;
}

.story-photo--document {
  background: #eef1f7;
}

.story-photo--document img {
  padding: clamp(18px, 2.5vw, 34px);
  object-fit: contain;
}

.story-photo--document::after {
  background: linear-gradient(180deg, transparent 64%, rgba(7, 10, 18, 0.82) 100%);
}

.story-photo--wide-evidence {
  min-height: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.story-photo--wide-evidence img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 0;
  object-fit: contain;
}

.story-photo--wide-evidence::after { content: none; }

.story-photo--wide-evidence figcaption {
  position: static;
  margin-top: 10px;
  font-size: 12px;
}

.story-photo--memory img {
  object-position: center;
}

.story-photo--shenzhen-office img {
  object-position: 57% center;
}

.story-grid--shenzhen-method {
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
}

.story-grid--shenzhen-result {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.shenzhen-rank {
  justify-self: center;
  margin: 0;
  text-align: center;
}

.shenzhen-rank .rank-preview {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 14px;
}

.shenzhen-rank .rank-preview img {
  display: block;
  width: auto;
  height: min(62vh, 570px);
  max-width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 15px;
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.38);
}

.shenzhen-rank .rank-preview img.rank-preview__detail {
  width: min(27vw, 280px);
  object-fit: cover;
  object-position: top;
}

.shenzhen-rank figcaption {
  margin-top: 13px;
  color: #dce5f7;
  font-size: 12px;
  line-height: 1.5;
}

.shenzhen-rank figcaption span {
  display: block;
  color: #a9c4ff;
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.16em;
}

.story-grid--youya,
.story-grid--youya-inquiries {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.story-grid--youya-traffic {
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(32px, 5vw, 80px);
}

.story-grid--ai {
  grid-template-columns: minmax(0, 0.76fr) minmax(0, 1.24fr);
  gap: clamp(32px, 5vw, 80px);
}

.story-grid--ai.reverse {
  grid-template-columns: minmax(0, 1.24fr) minmax(0, 0.76fr);
}

.youya-figure {
  min-width: 0;
  margin: 0;
}

.youya-figure .media-open {
  display: flex;
  align-items: center;
  justify-content: center;
}

.youya-figure .media-open img {
  width: auto;
  max-width: 100%;
  max-height: min(66vh, 620px);
  object-fit: contain;
}

.youya-figure--wide .media-open img { width: 100%; }
.youya-figure--portrait { justify-self: center; }
.youya-figure--portrait .media-open img { max-height: min(68vh, 650px); }
.life-feature .media-open img { max-height: min(58vh, 540px); }

.youya-figure figcaption {
  margin-top: 12px;
  color: #dce5f7;
  font-size: 12px;
  line-height: 1.5;
}

.youya-figure figcaption span {
  display: block;
  color: #a9c4ff;
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.16em;
}

.story-grid--company {
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.5vh, 28px);
  max-width: 1100px;
}

.story-grid--company .story-copy { max-width: 1100px; }
.story-grid--company .section-title { margin-bottom: 12px; font-size: clamp(40px, 4.4vw, 60px); }
.story-grid--company .story-text { max-width: 100%; }
.story-photo--landscape {
  min-height: 0;
  width: 100%;
  aspect-ratio: 1920 / 918;
  transform: none;
}

.story-photo--landscape img {
  position: static;
  display: block;
  width: 100%;
  height: auto;
  min-height: 0;
  object-fit: contain;
}

.story-grid--evidence {
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.5vh, 26px);
  max-width: 1200px;
}

.story-grid--evidence .story-copy {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: end;
  gap: 0 40px;
}
.story-grid--evidence .chapter-number { grid-column: 1 / -1; }
.story-grid--evidence .section-title { margin-bottom: 0; font-size: clamp(40px, 4.2vw, 58px); }
.story-grid--evidence .story-text { padding-bottom: 8px; }

.story-grid--keepsake {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(36px, 6vw, 90px);
}

.story-grid--anniversary {
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(32px, 5vw, 70px);
}

.saiqun-gallery {
  display: grid;
  gap: 12px;
  min-height: min(67vh, 640px);
  transform: perspective(1100px) rotateY(-3deg);
}

.reverse .saiqun-gallery {
  transform: perspective(1100px) rotateY(3deg);
}

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

.saiqun-gallery--three {
  grid-template-columns: 1.15fr 0.85fr;
  grid-template-rows: repeat(2, minmax(0, 1fr));
}

.saiqun-gallery--three .saiqun-tile:first-child { grid-row: 1 / 3; }

.saiqun-tile {
  position: relative;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 26px;
  background: rgba(12, 15, 23, 0.78);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.saiqun-tile img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.saiqun-tile--contain { background: #eef1f7; }
.saiqun-tile--contain img { padding: 10px; object-fit: contain; }

.saiqun-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(5, 7, 12, 0.86) 100%);
}

.saiqun-tile figcaption {
  position: absolute;
  right: 16px;
  bottom: 14px;
  left: 16px;
  z-index: 1;
  color: #eef3ff;
  font-size: 13px;
}

.saiqun-gallery--evidence {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(16px, 2vw, 28px);
  min-height: 0;
  max-height: none;
  transform: none;
}

.saiqun-gallery--anniversary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: clamp(14px, 1.5vw, 22px);
  min-height: 0;
  max-height: none;
  transform: none;
}

.saiqun-gallery--evidence .media--landscape { min-width: 0; }
.saiqun-gallery--evidence .media--portrait { min-width: 0; max-width: 250px; }
.saiqun-gallery--anniversary .media--portrait { min-width: 0; }
.saiqun-gallery--evidence .media--landscape img { max-height: min(61vh, 590px); }
.saiqun-gallery--evidence .media--portrait img { max-height: min(57vh, 550px); width: auto; max-width: 100%; margin-inline: auto; }
.saiqun-gallery--anniversary .media--portrait img { max-height: min(66vh, 640px); width: auto; max-width: 100%; margin-inline: auto; }

.saiqun-gallery--evidence .saiqun-tile,
.saiqun-gallery--anniversary .saiqun-tile {
  min-width: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.saiqun-gallery--evidence .saiqun-tile::after,
.saiqun-gallery--anniversary .saiqun-tile::after { content: none; }

.media-open {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.media-open img,
.saiqun-gallery--anniversary .media--photo img {
  display: block;
  width: 100%;
  height: auto;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  object-fit: contain;
  box-shadow: 0 24px 65px rgba(0, 0, 0, 0.34);
}

.saiqun-gallery--evidence .saiqun-tile figcaption,
.saiqun-gallery--anniversary .saiqun-tile figcaption {
  position: static;
  margin-top: 10px;
  color: #dce5f7;
  font-size: 12px;
  line-height: 1.45;
}

.saiqun-tile--keepsake {
  justify-self: center;
  width: min(100%, 470px);
  overflow: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
  transform: rotate(-2deg);
}
.saiqun-tile--keepsake::after { content: none; }
.saiqun-tile--keepsake img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: min(69vh, 660px);
  margin-inline: auto;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  object-fit: contain;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.36);
}
.saiqun-tile--keepsake figcaption { position: static; margin-top: 12px; font-size: 12px; }

.media-dialog {
  width: min(94vw, 1120px);
  max-height: 92dvh;
  padding: clamp(14px, 2vw, 26px);
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  background: #121827;
  color: var(--text);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.65);
}

.media-dialog::backdrop {
  background: rgba(2, 4, 10, 0.86);
  backdrop-filter: blur(9px);
}

.media-dialog__close {
  position: sticky;
  top: 0;
  z-index: 1;
  display: block;
  margin: 0 0 12px auto;
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  background: #263148;
  cursor: pointer;
}

.media-dialog__figure { margin: 0; }
.media-dialog__figure img { display: block; width: auto; max-width: 100%; height: auto; margin: 0 auto; }
.media-dialog__figure figcaption { margin-top: 12px; text-align: center; font-size: 14px; }

.album {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  grid-template-rows: 1fr 1fr;
  gap: 12px;
  min-height: min(60vh, 560px);
  transform: perspective(1000px) rotateY(-4deg);
}

.reverse .album {
  transform: perspective(1000px) rotateY(4deg);
}

.story-grid--college-award {
  grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
  gap: clamp(44px, 5vw, 72px);
}
.story-grid--college-award .section-title { font-size: clamp(44px, 4.2vw, 60px); }

.college-showcase {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  min-height: min(64vh, 600px);
}

.college-showcase--award {
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
  grid-template-rows: minmax(0, 1fr);
  align-items: center;
  gap: clamp(14px, 2vw, 26px);
  min-height: 0;
  transform: none;
}

.college-showcase--award .college-tile--main { grid-area: 1 / 1; }

.college-showcase--award .college-tile--award {
  grid-area: 1 / 2;
  width: 100%;
  margin: 0;
}

.college-showcase--teaching {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  transform: none;
}
.college-showcase--teaching .college-tile:first-child { width: 88%; }
.college-showcase--teaching .college-tile:last-child { width: 63%; align-self: flex-end; }
.college-showcase--award .college-tile,
.college-showcase--teaching .college-tile { height: auto; }
.college-showcase--award .college-tile img,
.college-showcase--teaching .college-tile img {
  position: static;
  width: 100%;
  height: auto;
  max-height: min(58vh, 540px);
  object-fit: contain;
}

.college-tile {
  position: relative;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  background: #121722;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.college-tile--main { grid-row: auto; }

.college-tile img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.college-tile--award img { object-fit: contain; }

.college-showcase--teaching .college-tile:last-child img { object-position: center; }

.college-tile figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 32px 14px 12px;
  background: linear-gradient(transparent, rgba(5, 7, 12, 0.88));
  color: #eef3ff;
  font-size: 12px;
  line-height: 1.4;
}

.photo-slot {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 0;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, transparent 35%, rgba(92, 128, 226, 0.16)),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 14px),
    rgba(19, 23, 34, 0.68);
}

.photo-slot::before {
  content: "";
  position: absolute;
  inset: 18% 20%;
  border: 1px dashed rgba(255, 255, 255, 0.11);
  border-radius: 50%;
}

.photo-main {
  grid-row: 1 / 3;
}

.photo-slot span,
.proof-card span {
  position: relative;
  z-index: 1;
  margin-bottom: 5px;
  color: #8892a6;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.photo-slot strong,
.proof-card strong {
  position: relative;
  z-index: 1;
  font-size: 15px;
}

.result-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: min(57vh, 520px);
  overflow: hidden;
  text-align: center;
}

.result-glow {
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(90, 134, 255, 0.32);
  filter: blur(70px);
}

.result-stage p,
.result-stage strong,
.result-stage span {
  position: relative;
}

.result-stage p {
  color: var(--blue);
  font-size: 12px;
  letter-spacing: 0.18em;
}

.result-stage strong {
  margin: 8px 0 14px;
  font-size: clamp(34px, 4vw, 56px);
}

.result-stage span {
  color: var(--muted);
  font-size: 13px;
}

.quote-chip {
  display: inline-block;
  margin-top: 26px;
  color: #e8ebf4;
}

.proof-stack {
  display: grid;
  gap: 14px;
  perspective: 900px;
}

.proof-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 126px;
  padding: 28px;
  transition: border-color 250ms ease, transform 350ms var(--ease-story);
}

.proof-card:nth-child(1) { transform: translateX(34px); }
.proof-card:nth-child(3) { transform: translateX(-26px); }
.proof-card:hover {
  border-color: rgba(114, 167, 255, 0.45);
  transform: translateX(0);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.72fr) minmax(540px, 1.28fr);
  align-items: center;
  gap: clamp(42px, 6vw, 90px);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.project-grid article {
  min-height: 210px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  backdrop-filter: blur(18px);
  transition: border-color 250ms ease, transform 300ms var(--ease-story);
}

.project-grid article:hover {
  border-color: rgba(114, 167, 255, 0.48);
  transform: translateY(-5px);
}

.project-grid span {
  color: var(--blue);
  font-size: 11px;
}

.project-grid h3 {
  margin: 58px 0 8px;
  font-size: 20px;
  line-height: 1.35;
}

.project-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.life-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: clamp(40px, 6vw, 80px);
}

.life-album {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 150px 150px 110px;
  gap: 12px;
}

.life-tile {
  display: flex;
  align-items: flex-end;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    radial-gradient(circle at 30% 20%, rgba(113, 164, 255, 0.18), transparent 42%),
    rgba(17, 21, 31, 0.7);
  color: #dce2ef;
  font-size: 13px;
}

.life-tile.tall { grid-row: 1 / 3; }
.life-tile.wide { grid-column: 1 / 3; }

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
  padding: 13px 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: #eef3ff;
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  backdrop-filter: blur(16px);
  transition: border-color 250ms ease, background 250ms ease, box-shadow 250ms ease;
}

.back-to-top svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 300ms var(--ease-story);
}

.back-to-top:hover {
  border-color: rgba(114, 167, 255, 0.55);
  background: rgba(114, 167, 255, 0.12);
  box-shadow: 0 10px 30px rgba(30, 73, 160, 0.18);
}

.back-to-top:hover svg {
  transform: translateY(-3px);
}

.company-insight {
  grid-column: 1 / 3;
  margin-top: 6px;
  padding: 24px 28px;
}

.company-insight[hidden] {
  display: none;
}

.company-insight h3 {
  margin: 0 0 8px;
  font-size: 26px;
}

.company-insight p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.insight-empty {
  margin-top: 14px;
  color: #ced6e6;
  font-size: 13px;
}

html[data-personalized="true"] .life-layout {
  grid-template-columns: 0.68fr 1fr;
  gap: 32px;
}

html[data-personalized="true"] .life-album {
  grid-template-rows: 112px 112px 78px;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.18; transform: scale(0.8); }
  50% { opacity: 0.9; transform: scale(1.2); }
}

@keyframes scroll-line {
  0%, 100% { transform: scaleY(0.25); transform-origin: top; opacity: 0.35; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
}

@media (max-width: 900px) {
  body { overflow: auto; }
  .motion-ready .timeline-item { translate: -24px 0; }
  .motion-ready .timeline-visual { translate: 24px 0; }
  .motion-ready .reverse .timeline-item { translate: 24px 0; }
  .motion-ready .reverse .timeline-visual { translate: -24px 0; }
  .motion-ready .timeline-item.is-visible,
  .motion-ready .reverse .timeline-item.is-visible { translate: 0 0; }
  .site-header { padding: 20px; }
  .chapter-status { font-size: 10px; }
  #chapter-label, .chapter-divider { display: none; }
  .chapter-dots { right: 10px; gap: 8px; }
  .story-section { padding: 78px 34px 38px 24px; }
  .hero-layout,
  .story-grid,
  .product-layout,
  .life-layout,
  html[data-personalized="true"] .life-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .story-grid.reverse .story-copy { order: initial; }
  .hero-name { font-size: clamp(74px, 24vw, 120px); }
  .identity-card { display: none; }
  .section-title { font-size: clamp(38px, 11vw, 58px); }
  .story-text { font-size: 15px; line-height: 1.68; }
  .album, .reverse .album {
    min-height: 35vh;
    transform: none;
  }
  .college-showcase,
  .reverse .college-showcase {
    grid-template-columns: minmax(0, 1fr);
    min-height: 48vh;
    max-height: 50vh;
  }
  .college-showcase--award,
  .reverse .college-showcase--award { grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr); min-height: 0; max-height: none; }
  .college-showcase--teaching,
  .reverse .college-showcase--teaching { min-height: 0; max-height: none; }
  .college-tile { border-radius: 18px; }
  .college-tile figcaption { padding: 24px 10px 9px; font-size: 11px; }
  .story-photo,
  .reverse .story-photo {
    min-height: 42vh;
    max-height: 52vh;
    transform: none;
  }
  .story-photo figcaption {
    left: 18px;
    right: 18px;
    bottom: 16px;
    font-size: 13px;
  }
  .saiqun-gallery,
  .reverse .saiqun-gallery {
    min-height: 42vh;
    max-height: 52vh;
    transform: none;
  }
  .saiqun-tile { border-radius: 20px; }
  .saiqun-tile figcaption { right: 10px; bottom: 10px; left: 10px; font-size: 11px; }
  .story-grid--company,
  .story-grid--college-award,
  .story-grid--evidence,
  .story-grid--anniversary,
  .story-grid--keepsake,
  .story-grid--shenzhen-result { grid-template-columns: 1fr; }
  .story-grid--evidence .story-copy { display: block; }
  .story-grid--evidence .section-title { margin-bottom: 18px; }
  .story-grid--company .section-title { font-size: clamp(36px, 8vw, 52px); }
  .saiqun-gallery--evidence { grid-template-columns: minmax(0, 1fr); }
  .saiqun-gallery--evidence .media--portrait { width: min(42%, 180px); }
  .saiqun-gallery--evidence .media--portrait img { max-height: 15vh; }
  .saiqun-gallery--anniversary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .saiqun-gallery--anniversary .media--portrait img { max-height: 42vh; }
  .saiqun-tile--keepsake { width: min(70%, 340px); }
  .saiqun-tile--keepsake img { max-height: 48vh; }
  .story-grid--shenzhen-method { grid-template-columns: minmax(0, 1fr); }
  .story-grid--shenzhen-method > * { min-width: 0; }
  .story-grid--youya,
  .story-grid--youya-traffic,
  .story-grid--youya-inquiries,
  .story-grid--ai,
  .story-grid--ai.reverse { grid-template-columns: minmax(0, 1fr); }
  .story-grid--youya > *,
  .story-grid--youya-traffic > *,
  .story-grid--youya-inquiries > *,
  .story-grid--ai > * { min-width: 0; }
  .youya-figure .media-open img { max-height: 43vh; }
  .youya-figure--portrait .media-open img { max-height: 48vh; }
  .life-feature .media-open img { max-height: 34vh; }
  .story-grid .story-photo--landscape,
  .reverse .story-photo--landscape {
    width: 100%;
    min-width: 0;
    min-height: 0;
    max-height: none;
  }
  .reverse .story-photo--wide-evidence {
    min-height: 0;
    max-height: none;
  }
  .shenzhen-rank .rank-preview img { height: min(42vh, 370px); }
  .shenzhen-rank .rank-preview img.rank-preview__detail { width: min(55vw, 185px); }
  .saiqun-gallery--evidence,
  .reverse .saiqun-gallery--anniversary {
    min-height: 0;
    max-height: none;
    transform: none;
  }
  .result-stage { min-height: 34vh; }
  .proof-stack { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .proof-card { min-height: 110px; padding: 15px; }
  .proof-card:nth-child(1), .proof-card:nth-child(3) { transform: none; }
  .project-grid { gap: 8px; }
  .project-grid article { min-height: 146px; padding: 18px; }
  .project-grid h3 { margin: 26px 0 6px; font-size: 15px; }
  .life-album { grid-template-rows: 95px 95px 70px; }
  .company-insight { grid-column: 1; padding: 18px; }
  .life-copy .story-text { max-width: 92%; }
}

@media (max-width: 520px) {
  .greeting-title { font-size: clamp(58px, 20vw, 88px); }
  .greeting-section .lead { font-size: 17px; }
  .opening-context { max-width: 300px; font-size: 13px; }
  .scroll-cue { margin-top: 38px; }
  .metric-row { gap: 5px; }
  .metric-row strong { font-size: 18px; }
  .album { grid-template-columns: 1.15fr 0.85fr; gap: 7px; }
  .college-showcase { grid-template-columns: minmax(0, 1fr); }
  .college-showcase--award { grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr); }
  .photo-slot { padding: 12px; border-radius: 18px; }
  .photo-slot strong { font-size: 11px; }
  .proof-card span { display: none; }
  .proof-card strong { font-size: 11px; }
  .project-grid article { min-height: 132px; }
  .project-grid p { display: none; }
  .life-tile { padding: 12px; font-size: 11px; }
  .saiqun-gallery--evidence,
  .saiqun-gallery--anniversary { gap: 8px; }
  .saiqun-gallery--anniversary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal-item,
  .title-char,
  .timeline-item,
  .timeline-visual {
    opacity: 1 !important;
    translate: none !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }
  .story-shell.is-springing,
  .story-section.is-edge-bouncing .section-inner {
    transform: none !important;
    will-change: auto;
  }
}