@font-face {
  font-family: 'Bebas Neue';
  src: url('./assets/fonts/BebasNeue-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: block;
}

:root {
  --bg: #0a0b0e;
  --panel: rgba(14, 15, 20, 0.88);
  --panel-raised: rgba(18, 20, 26, 0.92);
  --panel-soft: rgba(22, 24, 32, 0.76);
  --ink: #e8eaf0;
  --ink-soft: #8a8fa0;
  --ink-dim: #4a5060;
  --line: rgba(232, 234, 240, 0.1);
  --line-soft: rgba(232, 234, 240, 0.05);
  --blue: #4d7cff;
  --blue-soft: #2a4aaa;
  --yellow: #f0c040;
  --red: #ff4d3a;
  --font-body:
    'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC',
    sans-serif;
  --font-display: 'Bebas Neue', 'Teko', 'Oswald', 'Arial Narrow', sans-serif;
  --font-mono: 'Consolas', 'Cascadia Mono', 'SFMono-Regular', 'Courier New', monospace;
  font: 16px/1.7 var(--font-body);
  color: var(--ink);
  background: var(--bg);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 0% 0%, rgba(77, 124, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(255, 77, 58, 0.06) 0%, transparent 50%),
    #0a0b0e;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 18% 26%, rgba(77, 124, 255, 0.08), transparent 28%),
    radial-gradient(circle at 78% 54%, rgba(255, 77, 58, 0.07), transparent 32%),
    radial-gradient(circle at 52% 78%, rgba(77, 124, 255, 0.04), transparent 26%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.72;
  animation: pageBreath 9s ease-in-out infinite;
}

a,
button {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

img {
  display: block;
  width: 100%;
  max-width: 100%;
}

#root {
  min-height: 100vh;
}

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

.site-root {
  position: relative;
}

.page-shell {
  width: min(100%, 1600px);
  margin: 0 auto;
  padding: 0 10px 40px;
}

.page-shell-visible,
.page-shell-hidden {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  overflow: hidden;
  pointer-events: none;
}

.intro-source-shell {
  position: absolute;
  inset: 0;
}

.intro-source-shell.is-hidden {
  opacity: 0;
}

.intro-source-shell.is-hidden,
.intro-shatter,
.intro-main-content,
.intro-crack-growth-wrap,
.intro-crack-path {
  transition: opacity 0.08s linear;
}

.intro-snapshot-source {
  position: absolute;
  inset: 0;
}

.intro-snapshot-source.is-closing-source {
  isolation: isolate;
}

.intro-overlay-closing {
  background:
    radial-gradient(circle at 50% 50%, rgba(136, 170, 255, 0.06), transparent 36%),
    linear-gradient(180deg, rgba(6, 8, 14, 0.14), rgba(6, 8, 14, 0.28));
}

.intro-overlay-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(77, 124, 255, 0.12), transparent 40%),
    radial-gradient(ellipse at 70% 40%, rgba(255, 77, 58, 0.08), transparent 35%),
    #0a0b0e;
}

.intro-skip {
  position: absolute;
  right: 32px;
  bottom: 28px;
  z-index: 6;
  padding: 8px 14px;
  border: 1px solid rgba(232, 234, 240, 0.2);
  color: rgba(232, 234, 240, 0.4);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  pointer-events: auto;
  background: rgba(10, 11, 14, 0.6);
  backdrop-filter: blur(10px);
}

.intro-line-cloud,
.intro-line-field-wrap,
.intro-helix-shell,
.intro-helix-core,
.intro-helix-line,
.intro-split-exit,
.intro-split-axis,
.intro-split-column,
.intro-split-panel,
.shared-brand,
.shared-brand-title,
.shared-brand-logo,
.line-field,
.line-segment,
.line-arc,
.line-dot {
  position: absolute;
}

/* 首屏超大 wordmark */
.intro-hero-wordmark {
  position: absolute;
  left: 0;
  top: 0;
  width: 55vw;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: clamp(24px, 4vw, 64px);
  z-index: 4;
  pointer-events: none;
}

.intro-hero-wordmark > * {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(10vw, 13vw, 18vw);
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-transform: uppercase;
  white-space: nowrap;
  transform-origin: left center;
}

.intro-hero-wordmark > *:nth-child(odd) .intro-wordmark-core {
  color: transparent;
  -webkit-text-stroke: 1px rgba(232, 234, 240, 0.7);
}

.intro-wordmark-line {
  position: relative;
  display: block;
  overflow: visible;
}

.intro-wordmark-trail,
.intro-wordmark-core {
  display: block;
}

.intro-wordmark-trail {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.intro-wordmark-trail-layer,
.intro-wordmark-core {
  grid-area: 1 / 1;
}

.intro-wordmark-trail-layer {
  position: absolute;
  inset: 0;
  color: rgba(77, 124, 255, 0.96);
  mix-blend-mode: screen;
  animation: wordmarkGhostStamp 1.22s steps(2, end) forwards;
  animation-delay: calc(var(--wordmark-delay) + var(--ghost-delay));
  will-change: opacity;
}

.intro-wordmark-trail-layer-1 {
  transform: translate3d(0.62em, 0.02em, 0);
  --ghost-opacity: 0.92;
  --ghost-delay: 0.46s;
  color: rgba(232, 234, 240, 0.98);
}

.intro-wordmark-trail-layer-2 {
  transform: translate3d(1.26em, 0.03em, 0);
  --ghost-opacity: 0.74;
  --ghost-delay: 0.34s;
}

.intro-wordmark-trail-layer-3 {
  transform: translate3d(2.02em, 0.04em, 0);
  --ghost-opacity: 0.42;
  --ghost-delay: 0.24s;
}

.intro-wordmark-trail-layer-4 {
  transform: translate3d(2.9em, 0.05em, 0);
  --ghost-opacity: 0.24;
  --ghost-delay: 0.14s;
}

.intro-wordmark-trail-layer-5 {
  transform: translate3d(3.92em, 0.06em, 0);
  --ghost-opacity: 0.12;
  --ghost-delay: 0.07s;
}

.intro-wordmark-trail-layer-6 {
  transform: translate3d(5.08em, 0.08em, 0);
  --ghost-opacity: 0.06;
  --ghost-delay: 0s;
}

.intro-wordmark-core {
  position: relative;
  z-index: 2;
  color: var(--ink);
  opacity: 0;
  animation: wordmarkCoreReveal 0.42s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: calc(var(--wordmark-delay) + 0.62s);
}

.intro-hero-wordmark > *:nth-child(odd) .intro-wordmark-trail-layer-1 {
  color: transparent;
  -webkit-text-stroke: 1px rgba(232, 234, 240, 0.72);
}

/* 首屏 Logo 停在右半边 */
.intro-hero-logo {
  position: absolute;
  right: 0;
  top: 0;
  width: 45vw;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  pointer-events: none;
}

.intro-hero-logo img {
  width: clamp(140px, 22vw, 320px);
  opacity: 0.9;
}

.intro-hero-logo svg {
  width: clamp(140px, 22vw, 320px);
  opacity: 0.9;
  color: var(--ink);
}

.intro-line-cloud {
  inset: 0;
  pointer-events: none;
}

.intro-line-field-wrap {
  inset: 0;
}

/* 扫描线层 */
.intro-scan-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  overflow: hidden;
}

.intro-scan-line {
  position: absolute;
  top: 0;
  left: calc(var(--scan-i) * 14% - 20%);
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(77, 124, 255, 0.0) 20%,
    rgba(77, 124, 255, 0.5) 50%,
    rgba(77, 124, 255, 0.0) 80%,
    transparent 100%
  );
  animation: introScanPulse calc(2.4s + var(--scan-i) * 0.3s) ease-in-out infinite;
  animation-delay: calc(var(--scan-i) * 0.18s);
}

.intro-scan-line:nth-child(odd) {
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(232, 234, 240, 0.0) 20%,
    rgba(232, 234, 240, 0.18) 50%,
    rgba(232, 234, 240, 0.0) 80%,
    transparent 100%
  );
  animation-duration: calc(3.1s + var(--scan-i) * 0.22s);
}

/* SVG 线条层 */
.intro-svg-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

.intro-crack-svg {
  display: none;
}

.intro-crack-growth-wrap {
  position: absolute;
  inset: 0;
  z-index: 7;
  opacity: 0;
  pointer-events: none;
}

.intro-main-content.is-clacking .intro-crack-growth-wrap {
  animation: introCrackWrapReveal 0.08s linear forwards;
}

.intro-shard-energy {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(112, 145, 255, 0.14) 0%, rgba(112, 145, 255, 0.06) 18%, transparent 42%),
    linear-gradient(90deg, rgba(255, 255, 255, 0) 47%, rgba(216, 228, 255, 0.2) 50%, rgba(255, 255, 255, 0) 53%);
  opacity: 0.9;
  pointer-events: none;
}

.shard-edge-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  overflow: visible;
  opacity: 0.56;
}

.intro-crack-growth {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.intro-crack-path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
}

.intro-main-content.is-clacking .intro-crack-path {
  animation: introCrackFlash 0.05s linear forwards;
  animation-delay: 0s;
}

.intro-crack-path-main {
  stroke: rgba(236, 241, 255, 0.92);
  stroke-width: 0.82;
}

.intro-crack-path-slash {
  stroke: rgba(245, 247, 255, 0.98);
  stroke-width: 1.32;
}

.intro-crack-path-secondary {
  opacity: 0.54;
}

.intro-crack-path-branch {
  stroke: rgba(159, 189, 255, 0.7);
  stroke-width: 0.46;
}

.intro-crack-path-fray {
  stroke: rgba(113, 148, 255, 0.42);
  stroke-width: 0.26;
}

.svg-radial-ray {
  stroke: rgba(77, 124, 255, 0.12);
  stroke-width: 0.5;
  animation: svgRayPulse 3s ease-in-out infinite;
  animation-delay: var(--ray-delay);
}

.svg-orbit {
  fill: none;
  stroke-width: 0.6;
  animation: svgOrbitSpin 8s linear infinite;
  transform-origin: 500px 300px;
}

.svg-orbit-1 {
  stroke: rgba(77, 124, 255, 0.25);
  stroke-dasharray: 6 4;
}

.svg-orbit-2 {
  stroke: rgba(232, 234, 240, 0.15);
  stroke-dasharray: 3 6;
  animation-duration: 12s;
  animation-direction: reverse;
}

.svg-orbit-3 {
  stroke: rgba(77, 124, 255, 0.1);
  stroke-dasharray: 10 8;
  animation-duration: 6s;
}

.svg-sweep-line {
  display: none;
}

.svg-h-scan {
  animation: svgHScan 3.2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.svg-h-scan-sharp {
  animation: svgHScan 3.2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  animation-delay: 0.02s;
}

@keyframes svgHScan {
  0% { transform: translateY(-10px); opacity: 0; }
  5% { opacity: 1; }
  95% { opacity: 1; }
  100% { transform: translateY(610px); opacity: 0; }
}

.svg-flow-path {
  fill: none;
  stroke-width: 0.8;
  stroke-dasharray: 12 8;
  animation: svgFlowDash 3s linear infinite;
}

.svg-flow-1 {
  stroke: rgba(77, 124, 255, 0.2);
}

.svg-flow-2 {
  stroke: rgba(232, 234, 240, 0.1);
  animation-direction: reverse;
  animation-duration: 4s;
}

.svg-cross-v, .svg-cross-h {
  stroke: rgba(77, 124, 255, 0.3);
  stroke-width: 0.5;
  animation: svgCrossPulse 2s ease-in-out infinite;
}

.svg-cross-h { animation-delay: 0.5s; }

.svg-orbit-dot-1 {
  fill: rgba(77, 124, 255, 0.9);
  filter: drop-shadow(0 0 4px rgba(77, 124, 255, 0.8));
}

.svg-orbit-dot-2 {
  fill: rgba(232, 234, 240, 0.7);
  filter: drop-shadow(0 0 3px rgba(232, 234, 240, 0.6));
}

/* 网格点阵 */
.intro-grid-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(circle, rgba(77, 124, 255, 0.22) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: center center;
  mask-image: radial-gradient(ellipse at 50% 50%, black 20%, transparent 72%);
  animation: introGridPulse 3.2s ease-in-out infinite;
}

.intro-grid-layer-frozen {
  animation: none;
  opacity: 0.42;
}


.intro-line-cloud::before,
.intro-line-cloud::after {
  content: '';
  position: absolute;
  inset: 0;
}

.intro-line-cloud::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(77, 124, 255, 0.06), transparent 40%);
}

.intro-line-cloud::after {
  background: linear-gradient(90deg, rgba(232, 234, 240, 0) 0%, rgba(232, 234, 240, 0.02) 50%, rgba(232, 234, 240, 0) 100%);
}

.intro-particles {
  display: none;
}

.intro-blocks {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: hidden;
}

.intro-block {
  position: absolute;
  background: rgba(77, 124, 255, 0.7);
  box-shadow: 0 0 8px rgba(77, 124, 255, 0.5);
}

.intro-block:nth-child(odd) {
  background: rgba(232, 234, 240, 0.5);
  box-shadow: 0 0 6px rgba(232, 234, 240, 0.3);
}

.intro-block-h {
  animation: blockSlideRight linear infinite;
}

.intro-block-h-r {
  animation: blockSlideLeft linear infinite;
}

.intro-block-v {
  animation: blockSlideDown linear infinite;
}

.intro-block-v-b {
  animation: blockSlideUp linear infinite;
}

@keyframes blockSlideRight {
  0%   { transform: translateX(0); opacity: 0; }
  8%   { opacity: 1; }
  85%  { opacity: 0.8; }
  100% { transform: translateX(130vw); opacity: 0; }
}

@keyframes blockSlideLeft {
  0%   { transform: translateX(0); opacity: 0; }
  8%   { opacity: 1; }
  85%  { opacity: 0.8; }
  100% { transform: translateX(-130vw); opacity: 0; }
}

@keyframes blockSlideDown {
  0%   { transform: translateY(0); opacity: 0; }
  8%   { opacity: 1; }
  85%  { opacity: 0.8; }
  100% { transform: translateY(130vh); opacity: 0; }
}

@keyframes blockSlideUp {
  0%   { transform: translateY(0); opacity: 0; }
  8%   { opacity: 1; }
  85%  { opacity: 0.8; }
  100% { transform: translateY(-130vh); opacity: 0; }
}

/* ── 碎片飞散动画 ── */
.intro-shatter {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
  opacity: 0;
}

.intro-shatter.is-active {
  opacity: 1;
}

.intro-shatter-webgl,
.intro-shatter-webgl canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.intro-main-content {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.intro-main-content.is-clacking {
  animation: introMainCrackHold 0.78s linear forwards;
}

.intro-main-content.is-closing-live,
.intro-main-content.is-frozen-live {
  will-change: contents;
}

.intro-main-content.is-frozen-live *,
.intro-main-content.is-frozen-live *::before,
.intro-main-content.is-frozen-live *::after {
  animation-play-state: paused !important;
}

.intro-crack-layer {
  z-index: 9;
}

.intro-split-axis {
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(40, 80, 235, 0), rgba(40, 80, 235, 0.34), rgba(40, 80, 235, 0));
  transform: translateY(-50%);
}

.intro-split-column {
  left: var(--split-left);
  top: 0;
  width: var(--split-width);
  height: 100%;
  overflow: hidden;
}

.intro-split-panel {
  position: absolute;
  left: 0;
  width: 100%;
  background: #0a0b0e;
  will-change: transform;
}

.intro-split-panel-top {
  top: 0;
  height: 50%;
  transform-origin: center center;
  transform: translateY(-110%);
}

.intro-split-panel-bottom {
  bottom: 0;
  height: 50%;
  transform-origin: center center;
  transform: translateY(110%);
}

.intro-split-panel-inv.intro-split-panel-top {
  transform: translateY(-110%);
}

.intro-split-panel-inv.intro-split-panel-bottom {
  transform: translateY(110%);
}

.intro-split-exit.is-closing .intro-split-panel-top {
  animation: introSplitTop 1.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--split-delay);
}

.intro-split-exit.is-closing .intro-split-panel-bottom {
  animation: introSplitBottom 1.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--split-delay);
}

.shared-brand {
  inset: 0;
  pointer-events: none;
}

.shared-brand-hidden {
  position: absolute;
  inset: 0;
  z-index: 3;
}

.shared-brand-intro,
.shared-brand-closing {
  position: fixed;
  inset: 0;
  z-index: 95;
}

.shared-brand-title,
.shared-brand-logo {
  left: 0;
  top: 0;
  transform-origin: left top;
  will-change: transform, opacity;
}

.shared-wordmark {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 3.7rem);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.05em;
  color: var(--ink);
}

.shared-brand-logo img {
  width: clamp(120px, 13vw, 204px);
  filter: invert(1);
}

.shared-brand-logo {
  width: clamp(120px, 13vw, 204px);
}

.shared-brand-logo img {
  width: 100%;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 18px;
  background: rgba(10, 11, 14, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  background: transparent;
  flex: 0 0 auto;
}

.brand-mark img {
  width: 38px;
  height: 32px;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(97%) sepia(6%) saturate(247%) hue-rotate(180deg) brightness(118%) contrast(91%);
}

.brand-mark svg {
  width: 38px;
  height: 32px;
  color: var(--ink);
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-family: var(--font-body);
  font-size: 1.6rem;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.05em;
}

.brand-copy span {
  font-family: var(--font-display);
  font-size: 0.86rem;
  line-height: 1;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(232, 234, 240, 0.5);
  transition:
    color 0.2s ease,
    transform 0.2s ease;
}

.nav a:hover {
  color: var(--blue);
  transform: translateY(-1px);
}

.locale-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid rgba(232, 234, 240, 0.1);
  background: rgba(255, 255, 255, 0.02);
}

.locale-switch button {
  min-width: 42px;
  padding: 8px 10px;
  color: rgba(232, 234, 240, 0.56);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.2s ease, background 0.2s ease;
}

.locale-switch button.is-active {
  color: var(--ink);
  background: rgba(77, 124, 255, 0.14);
}

main {
  display: grid;
  gap: 8px;
}

.hero,
.section {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(232, 234, 240, 0.12);
  background: rgba(14, 15, 20, 0.9);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.01);
}

.hero::before,
.section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 18%, rgba(77, 124, 255, 0.05), transparent 26%),
    radial-gradient(circle at 82% 72%, rgba(255, 77, 58, 0.04), transparent 30%);
  opacity: 0.34;
  animation: panelBreath 8.5s ease-in-out infinite;
}

.section {
  padding: 56px 48px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: clamp(1.18rem, 1.02rem + 0.42vw, 1.42rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  position: relative;
  width: fit-content;
  text-shadow: 0 0 10px rgba(77, 124, 255, 0.08);
}

.eyebrow-line {
  width: 28px;
  height: 2px;
  background: currentColor;
  flex: 0 0 auto;
  box-shadow: 0 0 12px rgba(77, 124, 255, 0.2);
  animation: eyebrowLinePulse 2.8s ease-in-out infinite;
  transform-origin: left center;
}

.eyebrow-copy {
  display: inline-block;
  position: relative;
}

.eyebrow-copy::after {
  content: '';
  position: absolute;
  left: -0.08em;
  right: -0.08em;
  bottom: -0.18em;
  height: 1px;
  background: linear-gradient(90deg, rgba(77, 124, 255, 0), rgba(77, 124, 255, 0.68), rgba(77, 124, 255, 0));
  opacity: 0;
  transform: scaleX(0.6);
  transform-origin: left center;
  animation: eyebrowScan 3.2s ease-in-out infinite;
}

.content-hero {
  min-height: calc(100vh - 88px);
  padding-top: 0;
  padding-bottom: 0;
}

.line-field {
  inset: 0;
  pointer-events: none;
}

.line-segment {
  left: var(--line-x);
  top: var(--line-y);
  width: var(--line-w);
  height: 1px;
  background: rgba(232, 234, 240, var(--line-o));
  transform: rotate(var(--line-r));
  transform-origin: left center;
}

.line-field-hero .line-segment {
  background: rgba(232, 234, 240, calc(var(--line-o) * 0.72));
}

.line-arc {
  border: 1px solid rgba(232, 234, 240, 0.08);
  border-top-color: transparent;
  border-right-color: transparent;
  border-radius: 999px;
}

.line-arc-a {
  width: 26vw;
  height: 26vw;
  left: 3%;
  top: 21%;
  transform: rotate(-16deg);
}

.line-arc-b {
  width: 22vw;
  height: 22vw;
  left: 62%;
  top: 48%;
  transform: rotate(160deg);
}

.line-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(40, 80, 235, 0.5);
  box-shadow: 0 0 0 8px rgba(40, 80, 235, 0.06);
}

.line-dot-a {
  left: 14%;
  top: 58%;
}

.line-dot-b {
  left: 70%;
  top: 34%;
}

.content-hero-copy {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: center;
  gap: 22px;
  max-width: 560px;
  padding: clamp(48px, 8vh, 100px) 44px;
}

.content-hero-layout {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 88px);
  display: grid;
  grid-template-columns: 64px 1fr 38%;
  gap: 0;
}

/* Hero side rail */
.hero-side-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 0;
  border-right: 1px solid rgba(232, 234, 240, 0.08);
  gap: 16px;
}

.hero-rail-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(232, 234, 240, 0.2);
  flex: 1;
}

.hero-rail-line {
  width: 1px;
  height: 40px;
  background: rgba(232, 234, 240, 0.15);
  flex: 0 0 auto;
}

.hero-rail-year {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: rgba(232, 234, 240, 0.18);
}

.content-hero-copy h1,
.hero-title-main {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(4rem, 8vw, 9rem);
  line-height: 0.88;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.hero-title-glitch {
  position: relative;
  display: inline-grid;
  align-items: start;
  width: fit-content;
}

.hero-title-glitch > span {
  grid-area: 1 / 1;
}

.hero-title-main {
  position: relative;
  color: var(--ink);
}

/* Hero right visual panel */
.content-hero-visual {
  position: relative;
  border-left: 1px solid rgba(232, 234, 240, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 60% 50%, rgba(77, 124, 255, 0.06) 0%, transparent 70%);
}

.hero-logo-display {
  width: clamp(120px, 14vw, 200px);
  opacity: 0.85;
}

/* Hero meta strip */
.hero-meta-strip {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.hero-meta-strip span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(232, 234, 240, 0.3);
  padding: 4px 10px;
  border: 1px solid rgba(232, 234, 240, 0.1);
}


.hero-wordmark-anchor {
  min-height: 20px;
  display: inline-flex;
  align-items: center;
  margin-top: 0;
}

.hero-wordmark-placeholder {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: transparent;
}

.content-hero-tagline,
.content-hero-description {
  margin: 0;
}

.content-hero-tagline {
  max-width: 16ch;
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  line-height: 1.5;
  color: var(--ink-soft);
  margin-top: 0;
}

.content-hero-description {
  max-width: 34ch;
  color: var(--ink-dim);
  font-size: 0.88rem;
  line-height: 1.9;
}

.content-hero-visual {
  position: relative;
  min-height: 100%;
}

.hero-logo-anchor-shell {
  position: absolute;
  inset: 0;
  display: block;
}

.hero-logo-anchor {
  width: clamp(140px, 14vw, 200px);
  aspect-ratio: 1;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.hero-logo-anchor img {
  width: 100%;
  filter: invert(1);
  opacity: 1;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-bottom: 48px;
  position: relative;
}

.section-index {
  font-family: var(--font-display);
  font-size: clamp(8rem, 18vw, 16rem);
  line-height: 0.82;
  color: transparent;
  -webkit-text-stroke: 1px rgba(232, 234, 240, 0.12);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  display: block;
  margin-bottom: -0.18em;
  pointer-events: none;
}

.section-head h2 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-body);
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.06;
  padding-left: 2px;
  border-left: 3px solid var(--blue);
  padding-left: 16px;
}

.fact-card,
.role-card,
.statement-panel,
.project-lead-card,
.project-metric-card,
.signal-module,
.framed-image,
.workflow-item,
.proof-card,
.contact-card,
.contact-manifesto {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel-raised);
}

.about-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  gap: 2px;
}

.statement-panel,
.contact-manifesto {
  background:
    linear-gradient(135deg, rgba(240, 192, 64, 0.1) 0 12%, transparent 12% 100%),
    var(--panel-raised);
  padding: 32px;
}

.panel-tag,
.fact-card span,
.role-card span,
.contact-card span,
.proof-copy span,
.image-caption span {
  display: block;
  font-family: var(--font-display);
  font-size: 0.96rem;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.panel-tag {
  color: var(--red);
}

.statement-lead {
  margin: 16px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 0.96;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.body-copy {
  display: grid;
  gap: 14px;
}

.body-copy p,
.statement-panel p,
.fact-card p,
.role-card p,
.project-lead-card p,
.project-metric-card p,
.signal-copy p,
.signal-tip,
.workflow-item p,
.proof-copy p,
.contact-manifesto p {
  margin: 0;
  color: var(--ink-soft);
}

.facts-grid,
.role-grid,
.contact-grid {
  display: grid;
  gap: 2px;
}

.facts-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.fact-card,
.role-card,
.contact-card {
  padding: 18px;
}

.fact-card:nth-child(2),
.project-metric-card:nth-child(3),
.proof-card:nth-child(2) {
  background:
    linear-gradient(180deg, rgba(77, 124, 255, 0.12), rgba(77, 124, 255, 0)),
    var(--panel-raised);
}

.fact-card:nth-child(3),
.project-metric-card:nth-child(4),
.contact-card:nth-child(1) {
  background:
    linear-gradient(180deg, rgba(255, 77, 58, 0.1), rgba(255, 77, 58, 0)),
    var(--panel-raised);
}

.fact-card span,
.role-card span,
.contact-card span {
  color: var(--blue);
}

.fact-card strong,
.role-card strong,
.contact-card strong {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 3.5vw, 3.2rem);
  line-height: 1.04;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.role-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2px;
  gap: 2px;
}

.role-card {
  min-height: 188px;
  display: grid;
  align-content: start;
}

.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) repeat(3, minmax(0, 0.63fr));
  gap: 2px;
}

.project-lead-card,
.project-metric-card {
  padding: 20px;
}

.project-lead-card {
  display: grid;
  align-content: start;
  gap: 10px;
  background:
    linear-gradient(135deg, rgba(77, 124, 255, 0.85) 0 16%, transparent 16% 100%),
    linear-gradient(315deg, rgba(232, 234, 240, 0.02) 0 24%, transparent 24% 100%),
    var(--panel-raised);
}

.project-lead-card h3,
.project-metric-card h3,
.signal-copy h3,
.workflow-item h3,
.proof-copy strong {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.02;
}

.project-lead-card h3 {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 6vw, 6rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 0.88;
}

.project-status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-status-strip span {
  padding: 8px 10px;
  background: rgba(232, 234, 240, 0.08);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
}

.project-metric-card {
  display: grid;
  align-content: start;
  gap: 6px;
}

.project-metric-card strong {
  font-family: var(--font-display);
  font-size: clamp(4rem, 7vw, 7rem);
  line-height: 0.9;
  color: rgba(232, 234, 240, 0.12);
  -webkit-text-stroke: 1px var(--red);
}

.project-metric-card h3 {
  font-size: 1.42rem;
}

.signal-module {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: 18px;
  margin-top: 20px;
  padding: 22px;
  background:
    linear-gradient(0deg, rgba(77, 124, 255, 0.06), rgba(77, 124, 255, 0.06)),
    var(--panel-raised);
}

.signal-copy {
  display: grid;
  align-content: start;
  gap: 12px;
}

.signal-copy h3 {
  font-size: clamp(2.1rem, 3.8vw, 3rem);
}

.signal-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.signal-meta strong {
  font-family: var(--font-display);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--red);
}

.ghost-button {
  min-height: 54px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-banner span {
  padding: 8px 10px;
  background: rgba(232, 234, 240, 0.06);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
}

.proof-number {
  position: absolute;
  right: 14px;
  top: 14px;
  padding: 8px 10px;
  background: rgba(10, 11, 14, 0.9);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1;
  letter-spacing: 0.08em;
  border: 1px solid var(--line);
}

.signal-complete {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 8px 10px;
  background: var(--blue);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer {
  padding: 18px 8px 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.signal-board {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(232, 234, 240, 0.04) 0 18%, transparent 18% 100%),
    linear-gradient(315deg, rgba(77, 124, 255, 0.08), rgba(77, 124, 255, 0)),
    #0d0f14;
}

.signal-board::before,
.signal-board::after {
  content: '';
  position: absolute;
  pointer-events: none;
}

.signal-board::before {
  width: 1px;
  height: 120%;
  left: 50%;
  top: -10%;
  background: rgba(77, 124, 255, 0.6);
}

.signal-board::after {
  width: 120%;
  height: 1px;
  top: 50%;
  left: -10%;
  background: rgba(232, 234, 240, 0.1);
}

.signal-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.signal-line {
  stroke: rgba(255, 255, 255, 0.18);
  stroke-width: 0.55;
  stroke-dasharray: 2 1.4;
}

.signal-line.active {
  stroke: var(--yellow);
  stroke-width: 0.82;
  stroke-dasharray: none;
}

.signal-node {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 92px;
  height: 92px;
  border: 1px solid rgba(232, 234, 240, 0.2);
  background: #0d0f14;
}

.signal-node span {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}

.signal-node.active {
  background: var(--yellow);
  border-color: rgba(0, 0, 0, 0.94);
}

.signal-node.wrong {
  background: rgba(203, 91, 72, 0.18);
  border-color: var(--red);
}

.signal-complete {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 8px 10px;
  background: var(--blue);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.workflow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(300px, 0.94fr);
  gap: 14px;
}

.workflow-side {
  display: grid;
  gap: 14px;
}

.framed-image {
  overflow: hidden;
  display: grid;
}

.framed-image-large,
.framed-image-small {
  grid-template-rows: auto 1fr;
}

.image-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 11, 14, 0.94);
  color: var(--ink);
}

.image-caption span {
  color: var(--yellow);
}

.image-caption strong {
  font-family: var(--font-display);
  font-size: 1.28rem;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.framed-image img {
  height: 100%;
  min-height: 280px;
  object-fit: cover;
}

.workflow-list {
  display: grid;
  gap: 12px;
}

.workflow-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0;
  padding: 0;
  border: none;
  background: none;
  border-bottom: 1px solid var(--line);
}

.workflow-item strong {
  font-size: clamp(3rem, 5vw, 5rem);
  color: transparent;
  -webkit-text-stroke: 1px rgba(77, 124, 255, 0.5);
  line-height: 1;
  padding: 16px 0;
}

.workflow-item > div {
  padding: 20px 20px 20px 0;
  border-left: 1px solid var(--line);
}

.workflow-item h3 {
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.proof-mosaic {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
}

.proof-card {
  display: grid;
  grid-template-rows: auto auto;
  min-height: 100%;
}

.proof-card-wide {
  grid-column: span 2;
}

.proof-media {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.proof-media img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.proof-copy {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.proof-copy span {
  color: var(--red);
}

.proof-copy strong {
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.08;
}

.contact-manifesto {
  display: grid;
  align-content: start;
  gap: 14px;
}

.contact-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.contact-banner span {
  padding: 8px 10px;
  background: rgba(232, 234, 240, 0.06);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
}

.contact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-card {
  display: grid;
  align-content: end;
  min-height: 188px;
}

.section-about .section-head h2 {
  max-width: 13ch;
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
}

/* ── ABOUT 新布局 ── */
.about-header {
  display: grid;
  gap: 18px;
  margin-bottom: 40px;
}

.about-header h2 {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.about-statement-full {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 40px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 2px;
}

.about-statement-full .statement-lead {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.about-body-cols {
  display: grid;
  gap: 16px;
  color: var(--ink-dim);
  font-size: 0.9rem;
  line-height: 1.8;
  align-content: start;
  padding-top: 8px;
}

.about-body-cols p { margin: 0; }

.about-data-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) 1px repeat(4, minmax(0, 1fr));
  gap: 2px;
}



.data-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
}

.data-value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.4rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.data-note {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-dim);
  line-height: 1.5;
}

.data-divider {
  width: 1px;
  background: rgba(77, 124, 255, 0.4);
}

/* ── PROJECT 新布局 ── */
.project-masthead {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: end;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2px;
}

.project-masthead .section-index {
  align-self: start;
}

.project-masthead-copy {
  display: grid;
  align-content: end;
  gap: 28px;
}

.project-masthead-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 5.5rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--ink);
  white-space: nowrap;
}

.project-sub {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.project-modules-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-bottom: 2px;
}

.project-module-item {
  padding: 28px 24px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  display: grid;
  align-content: start;
  gap: 8px;
}

.module-index {
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px rgba(77, 124, 255, 0.4);
}

.project-module-item h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.project-module-item p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-dim);
  line-height: 1.6;
}

/* ── WORKFLOW 新布局 ── */
.workflow-header {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 46px;
}

.workflow-asymmetric {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2px;
  align-items: start;
}

.workflow-text-col {
  display: grid;
  gap: 32px;
}

.workflow-text-col h2 {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.06;
  max-width: 18ch;
}

.workflow-points {
  display: grid;
  gap: 0;
}

.workflow-point {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
  padding: 20px 0;
}

.wp-id {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px rgba(77, 124, 255, 0.35);
  align-self: start;
}

.workflow-point h3 {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.workflow-point p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-dim);
  line-height: 1.6;
}

/* ── PROOF 新布局 ── */
.proof-header {
  display: grid;
  gap: 16px;
  margin-bottom: 40px;
}

.proof-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: 0.01em;
}

.proof-carousel {
  display: grid;
  gap: 18px;
}

.proof-carousel-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 2px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  overflow: hidden;
}

.proof-carousel-media {
  position: relative;
  min-height: 420px;
  background: rgba(8, 10, 14, 0.9);
  overflow: hidden;
}

.proof-carousel-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.proof-carousel-media-glow {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(135deg, rgba(77, 124, 255, 0.16), transparent 26%),
    linear-gradient(0deg, rgba(8, 10, 14, 0.22), rgba(8, 10, 14, 0.06));
  pointer-events: none;
}

.proof-carousel-copy {
  display: grid;
  align-content: end;
  gap: 14px;
  padding: 28px 24px 24px;
  border-left: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(77, 124, 255, 0.08), transparent 34%),
    linear-gradient(0deg, rgba(255, 77, 58, 0.05), transparent 40%),
    rgba(12, 14, 20, 0.96);
}

.proof-carousel-copy-inner {
  display: grid;
  gap: 14px;
}

.proof-carousel-copy span,
.proof-rail-copy span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
}

.proof-carousel-copy strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 2.2rem + 0.8vw, 3.1rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 0.96;
  color: var(--ink);
}

.proof-carousel-copy p {
  margin: 0;
  max-width: 28ch;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.72;
}

.proof-carousel-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 10px;
}

.proof-nav-button {
  min-width: 84px;
  padding: 12px 16px;
  border: 1px solid rgba(232, 234, 240, 0.16);
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.proof-nav-button:hover {
  border-color: rgba(77, 124, 255, 0.44);
  color: var(--blue);
  transform: translateY(-1px);
}

.proof-carousel-progress {
  display: flex;
  align-items: center;
  gap: 8px;
}

.proof-carousel-progress span {
  width: 22px;
  height: 2px;
  background: rgba(232, 234, 240, 0.16);
  transition: width 0.2s ease, background 0.2s ease;
}

.proof-carousel-progress span.is-active {
  width: 42px;
  background: var(--blue);
}

.proof-carousel-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px;
}

.proof-rail-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(14, 15, 20, 0.84);
  text-align: left;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.proof-rail-card:hover {
  border-color: rgba(77, 124, 255, 0.34);
  transform: translateY(-2px);
}

.proof-rail-card.is-active {
  border-color: rgba(77, 124, 255, 0.52);
  background:
    linear-gradient(135deg, rgba(77, 124, 255, 0.1), transparent 34%),
    rgba(16, 18, 24, 0.96);
  box-shadow: inset 0 0 0 1px rgba(77, 124, 255, 0.12);
}

.proof-rail-thumb {
  overflow: hidden;
  border: 1px solid rgba(232, 234, 240, 0.08);
  background: rgba(8, 10, 14, 0.9);
}

.proof-rail-thumb img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.proof-rail-copy {
  display: grid;
  gap: 6px;
}

.proof-rail-copy strong {
  display: block;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.16;
  color: var(--ink);
}

/* ── CONTACT 新布局 ── */
.contact-raw {
  display: grid;
  gap: 24px;
}

.contact-invite {
  margin: 0;
  font-size: clamp(1rem, 1.6vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 36ch;
  line-height: 1.6;
}

.contact-raw-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 16px;
}

.contact-raw-item {
  display: grid;
  align-content: end;
  gap: 8px;
  padding: 32px 28px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.contact-raw-item:hover {
  border-color: rgba(77, 124, 255, 0.4);
  background: rgba(77, 124, 255, 0.04);
}

.contact-raw-item span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
}

.contact-raw-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--ink);
}

.section-project .section-head h2,
.section-workflow .section-head h2,
.section-proof .section-head h2,
.section-contact .section-head h2 {
  max-width: 18ch;
  font-size: clamp(1.95rem, 3.5vw, 2.9rem);
}

@media (max-width: 1240px) {
  .content-hero-layout {
    grid-template-columns: 64px 1fr;
    min-height: auto;
    gap: 0;
  }

  .content-hero-visual {
    display: none;
  }

  .content-hero-copy {
    max-width: 560px;
  }

  .about-layout,
  .contact-layout,
  .signal-module,
  .workflow-layout {
    grid-template-columns: 1fr;
  }

  .project-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-lead-card {
    grid-column: span 2;
  }

  .facts-grid,
  .role-grid,
  .contact-grid,
  .proof-mosaic {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof-card-wide {
    grid-column: span 2;
  }

  .proof-carousel-stage {
    grid-template-columns: 1fr;
  }

  .proof-carousel-copy {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .proof-carousel-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .page-shell {
    padding: 0 6px 24px;
  }

  .topbar {
    gap: 12px;
    padding: 12px 12px 14px;
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-actions {
    gap: 12px;
    width: 100%;
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    gap: 12px;
    justify-content: flex-start;
  }

  .section {
    padding: 22px 18px;
  }

  .content-hero {
    min-height: auto;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .content-hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-side-rail {
    display: none;
  }

  .content-hero-copy {
    max-width: none;
    padding: 28px 20px;
    gap: 16px;
  }

  .content-hero-visual {
    display: none;
  }

  .about-header,
  .proof-header,
  .contact-raw,
  .workflow-text-col,
  .project-masthead-copy {
    gap: 14px;
  }

  .about-statement-full {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px 0;
  }

  .about-body-cols {
    gap: 12px;
    padding-top: 0;
  }

  .about-data-strip {
    grid-template-columns: 1fr;
  }

  .data-divider {
    display: none;
  }

  .data-cell {
    padding: 16px 14px;
  }

  .project-masthead {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 22px;
  }

  .project-masthead-copy h2 {
    white-space: normal;
  }

  .project-modules-row {
    grid-template-columns: 1fr;
  }

  .project-module-item {
    padding: 20px 16px;
  }

  .workflow-asymmetric {
    grid-template-columns: 1fr;
  }

  .workflow-point {
    grid-template-columns: 52px 1fr;
    padding: 16px 0;
  }

  .workflow-image-col .framed-image img {
    min-height: 220px;
  }

  .facts-grid,
  .role-grid,
  .contact-grid,
  .project-layout,
  .proof-mosaic {
    grid-template-columns: 1fr;
  }

  .project-lead-card {
    grid-column: auto;
  }

  .proof-card-wide {
    grid-column: auto;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .section-head h2 {
    max-width: none;
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .section-project .section-head h2,
  .section-workflow .section-head h2,
  .section-proof .section-head h2,
  .section-contact .section-head h2 {
    font-size: clamp(1.9rem, 8.2vw, 2.6rem);
  }

  .signal-board {
    min-height: 300px;
  }

  .signal-node {
    width: 76px;
    height: 76px;
  }

  .signal-node span {
    font-size: 1.16rem;
  }

  .workflow-item {
    grid-template-columns: 1fr;
  }

  .contact-card {
    min-height: 142px;
  }

  .proof-carousel-media {
    min-height: 240px;
  }

  .proof-carousel-controls {
    flex-wrap: wrap;
  }

  .proof-carousel-rail {
    grid-template-columns: 1fr;
  }

  .contact-raw-list {
    grid-template-columns: 1fr;
    margin-top: 8px;
  }

  .contact-raw-item {
    min-height: 0;
    padding: 20px 16px;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-copy strong {
    font-size: 1.2rem;
  }

  .brand-copy span {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
  }

  .nav {
    gap: 10px 12px;
  }

  .nav a {
    font-size: 0.72rem;
    letter-spacing: 0.04em;
  }

  .nav a,
  .ghost-button,
  .eyebrow,
  .fact-card span,
  .role-card span,
  .contact-card span,
  .panel-tag,
  .proof-copy span,
  .image-caption span {
    font-size: 0.92rem;
  }

  .intro-skip {
    right: 16px;
    bottom: 14px;
  }

  .shared-wordmark {
    font-size: clamp(1.56rem, 7.2vw, 2.32rem);
  }

  .shared-brand-logo img {
    width: 108px;
  }

  .content-hero-copy {
    padding: 24px 16px;
  }

  .content-hero-copy h1,
  .hero-title-main {
    font-size: clamp(2.4rem, 14vw, 3.4rem);
  }

  .hero-wordmark-placeholder {
    letter-spacing: 0.18em;
  }

  .intro-helix-shell {
    width: 88vw;
    height: 34vh;
  }

  .hero-logo-anchor {
    width: clamp(156px, 38vw, 210px);
    right: 6%;
    top: 8%;
  }

  .site-footer {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
  }

  .section-index {
    font-size: clamp(4.5rem, 20vw, 7rem);
  }

  .about-header h2,
  .workflow-text-col h2 {
    font-size: clamp(1.35rem, 7vw, 1.8rem);
  }

  .statement-lead,
  .about-statement-full .statement-lead {
    font-size: clamp(1.2rem, 6vw, 1.5rem);
  }

  .project-masthead-copy h2,
  .proof-header h2 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .signal-module {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px;
  }

  .signal-copy h3 {
    font-size: 1.55rem;
  }

  .signal-meta {
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
  }

  .ghost-button {
    min-height: 46px;
    padding: 0 16px;
  }

  .workflow-point {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .wp-id {
    font-size: 2.2rem;
  }

  .proof-carousel-copy {
    padding: 18px 16px;
  }

  .proof-carousel-copy strong {
    font-size: 1.7rem;
  }

  .proof-nav-button {
    min-width: 0;
    flex: 1 1 120px;
  }

  .proof-carousel-progress {
    width: 100%;
    order: 3;
  }

  .contact-invite {
    font-size: 0.95rem;
  }

  .contact-raw-item strong {
    font-size: 1.6rem;
  }
}

@keyframes introHelixSpin {
  0% { transform: rotateX(0deg) rotateZ(-4deg); }
  100% { transform: rotateX(360deg) rotateZ(-4deg); }
}

@keyframes introHelixSpinReverse {
  0% { transform: rotateX(0deg) rotateZ(4deg) rotateY(15deg); }
  100% { transform: rotateX(-360deg) rotateZ(4deg) rotateY(15deg); }
}

@keyframes introScanPulse {
  0%, 100% { opacity: 0; transform: translateY(-100%); }
  40%, 60% { opacity: 1; transform: translateY(0%); }
}

@keyframes introGridPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

@keyframes svgRayPulse {
  0%, 100% { opacity: 0.3; stroke-width: 0.5; }
  50% { opacity: 1; stroke-width: 1; }
}

@keyframes svgOrbitSpin {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -200; }
}

@keyframes svgSweepFade {
  0%, 100% { opacity: 0; }
  30%, 70% { opacity: 1; }
}

@keyframes svgFlowDash {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -80; }
}

@keyframes svgCrossPulse {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.8; }
}

@keyframes introCrackWrapReveal {
  0% { opacity: 0; }
  10%, 100% { opacity: 1; }
}

@keyframes pageBreath {
  0%, 100% {
    opacity: 0.56;
    transform: scale(1) translate3d(0, 0, 0);
  }
  50% {
    opacity: 0.86;
    transform: scale(1.03) translate3d(0, -0.5%, 0);
  }
}

@keyframes panelBreath {
  0%, 100% {
    opacity: 0.24;
    transform: scale(1);
  }
  50% {
    opacity: 0.42;
    transform: scale(1.015);
  }
}

@keyframes eyebrowLinePulse {
  0%, 100% {
    opacity: 0.72;
    box-shadow: 0 0 8px rgba(77, 124, 255, 0.12);
  }
  50% {
    opacity: 1;
    box-shadow: 0 0 14px rgba(77, 124, 255, 0.28);
  }
}

@keyframes eyebrowScan {
  0%, 100% {
    opacity: 0;
    transform: scaleX(0.62);
  }
  38% {
    opacity: 0.94;
  }
  60% {
    opacity: 0.42;
  }
  72% {
    opacity: 0;
    transform: scaleX(1);
  }
}

@keyframes wordmarkGhostStamp {
  0% {
    opacity: 0;
  }
  12% {
    opacity: var(--ghost-opacity);
  }
  28% {
    opacity: var(--ghost-opacity);
  }
  42% {
    opacity: calc(var(--ghost-opacity) * 0.08);
  }
  100% {
    opacity: 0;
  }
}

@keyframes wordmarkCoreReveal {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes introCrackFlash {
  0% {
    stroke-dashoffset: 100;
    opacity: 0;
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 1;
  }
}

@keyframes introShatterReveal {
  to { opacity: 1; }
}

@keyframes introMainCrackHold {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}

@keyframes introSplitTop {
  0%   { transform: translateY(-110%); }
  40%  { transform: translateY(0); animation-timing-function: cubic-bezier(0.4, 0, 0.6, 1); }
  78%  { transform: translateY(0); animation-timing-function: cubic-bezier(0.86, 0, 0.07, 1); }
  100% { transform: translateY(-160%) rotate(-18deg) translateX(-20%); }
}

@keyframes introSplitBottom {
  0%   { transform: translateY(110%); }
  40%  { transform: translateY(0); animation-timing-function: cubic-bezier(0.4, 0, 0.6, 1); }
  78%  { transform: translateY(0); animation-timing-function: cubic-bezier(0.86, 0, 0.07, 1); }
  100% { transform: translateY(160%) rotate(18deg) translateX(20%); }
}

/* ── 碎裂卡片效果 ── */

/* data-cell 碎裂 */
.data-cell {
  position: relative;
  padding: 20px 16px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  display: grid;
  align-content: start;
  gap: 6px;
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.2s;
  overflow: visible;
}

.data-cell::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(77, 124, 255, 0.15) 0 12%, transparent 12%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.data-cell::after {
  content: none;
}

.data-cell:hover {
  transform: translateY(-3px) skewX(-1deg);
  border-color: rgba(77, 124, 255, 0.4);
}

.data-cell:hover::before { opacity: 1; }
.data-cell:hover::after { opacity: 1; }

/* proof-item 碎裂 */
.proof-item {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.2s;
}

.proof-item::after {
  content: none;
}

.proof-item:hover {
  transform: translateY(-4px) skewX(-0.5deg);
  border-color: rgba(77, 124, 255, 0.35);
}

.proof-item:hover::after {
  box-shadow: 0 0 8px rgba(77, 124, 255, 0.6);
}

/* project-module-item 碎裂 */
.project-module-item {
  padding: 28px 24px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  display: grid;
  align-content: start;
  gap: 8px;
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.2s;
  position: relative;
}

.project-module-item::before {
  content: none;
}

.project-module-item:hover {
  transform: translateY(-3px) skewX(0.8deg);
  border-color: rgba(77, 124, 255, 0.35);
}

.project-module-item:hover::before {
  box-shadow: 0 0 6px rgba(77, 124, 255, 0.8);
}

/* workflow-point 碎裂线 */
.workflow-point {
  position: relative;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.workflow-point:hover {
  transform: translateX(6px);
}

.workflow-point:hover .wp-id {
  -webkit-text-stroke-color: rgba(77, 124, 255, 0.7);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
