:root {
  --bg: #08111a;
  --bg-deep: #040b12;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f6efe3;
  --muted: rgba(246, 239, 227, 0.72);
  --accent: #ff8f4c;
  --accent-soft: #ffd3a8;
  --cool: #98dbff;
  --lime: #d7ef75;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.28);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 143, 76, 0.24), transparent 24%),
    radial-gradient(circle at 82% 14%, rgba(152, 219, 255, 0.18), transparent 24%),
    radial-gradient(circle at 70% 68%, rgba(215, 239, 117, 0.1), transparent 18%),
    linear-gradient(180deg, #08111a 0%, #0a1724 38%, #061019 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(125deg, rgba(255, 255, 255, 0.018), transparent 28%),
    linear-gradient(310deg, rgba(255, 255, 255, 0.014), transparent 34%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), transparent 20%, rgba(0, 0, 0, 0.08));
  pointer-events: none;
  z-index: 0;
}

button,
a {
  color: inherit;
  font: inherit;
}

a {
  text-decoration: none;
}

.page-noise {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black 42%, transparent 100%);
  opacity: 0.24;
  pointer-events: none;
  z-index: 0;
}

.cursor-glow {
  position: fixed;
  left: 0;
  top: 0;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 176, 111, 0.18), transparent 72%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transform: translate(-50%, -50%);
  transition: opacity 180ms ease;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  width: min(var(--max-width), calc(100% - 32px));
  margin: 18px auto 0;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(7, 17, 28, 0.68);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--cool));
  box-shadow: 0 0 24px rgba(255, 143, 76, 0.45);
}

.nav-links {
  display: inline-flex;
  gap: 22px;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--text);
}

.section {
  position: relative;
  z-index: 1;
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 92px 0;
}

.eyebrow,
.panel-kicker,
.spotlight-label {
  margin: 0;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head h2,
.flow-card h3,
.case-spotlight h3,
.summary-copy h3 {
  margin: 12px 0 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia,
    serif;
  letter-spacing: -0.03em;
}

.section-head h2 {
  font-size: clamp(2.1rem, 4vw, 3.8rem);
  line-height: 1.02;
}

.hero {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 52px;
  align-items: center;
  min-height: calc(100vh - 110px);
  padding-top: 44px;
}

.hero-title {
  margin: 10px 0 18px;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia,
    serif;
  font-size: clamp(3.3rem, 9vw, 7rem);
  line-height: 0.94;
  letter-spacing: -0.06em;
}

.hero-title span {
  display: block;
  color: var(--accent-soft);
}

.hero-subtitle {
  margin: 0;
  max-width: 640px;
  font-size: 1.24rem;
  color: var(--cool);
}

.hero-text {
  margin: 18px 0 0;
  max-width: 660px;
  color: var(--muted);
  line-height: 1.86;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform 220ms ease,
    background 220ms ease,
    border-color 220ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), #ffb24d);
  color: #08121d;
  box-shadow: 0 18px 40px rgba(255, 143, 76, 0.25);
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.stat-card,
.case-spotlight,
.validation-card,
.validation-summary {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.stat-card {
  padding: 18px;
  border-radius: var(--radius-lg);
}

.stat-card strong {
  display: block;
  font-size: 1.08rem;
}

.stat-card span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.hero-stage {
  position: relative;
  min-height: 640px;
}

.hero-backdrop {
  position: absolute;
  inset: 7% 8%;
  border-radius: 42px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 28% 28%, rgba(255, 143, 76, 0.28), transparent 30%),
    radial-gradient(circle at 72% 24%, rgba(152, 219, 255, 0.22), transparent 30%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025));
}

.hero-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  animation: rotateRing 18s linear infinite;
}

.hero-orbit-one {
  width: 360px;
  height: 360px;
  left: 8%;
  bottom: 8%;
}

.hero-orbit-two {
  width: 170px;
  height: 170px;
  left: 36%;
  bottom: 26%;
  border-style: dashed;
  animation-duration: 11s;
  animation-direction: reverse;
}

.hero-panel {
  position: absolute;
  padding: 22px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: rgba(8, 20, 31, 0.74);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  animation: float 8.2s ease-in-out infinite;
}

.hero-panel h3 {
  margin: 10px 0 10px;
  font-size: 1.28rem;
}

.hero-panel p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.72;
}

.hero-panel-wide {
  left: 5%;
  right: 18%;
  top: 15%;
}

.hero-panel-top {
  top: 8%;
  right: 5%;
  width: 280px;
  animation-delay: -1.6s;
}

.hero-panel-mid {
  right: 8%;
  bottom: 14%;
  width: 310px;
  animation-delay: -4s;
}

.hero-chip {
  position: absolute;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
}

.hero-chip-left {
  left: 6%;
  bottom: 10%;
}

.hero-chip-right {
  right: 18%;
  top: 44%;
}

.cases-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.section-copy {
  margin: 18px 0 0;
  max-width: 720px;
  color: var(--muted);
  line-height: 1.82;
  font-size: 1.04rem;
}

.method-architecture {
  --arch-accent: rgba(255, 143, 76, 0.18);
  --arch-accent-strong: rgba(255, 211, 168, 0.84);
  position: relative;
  min-height: 1120px;
  padding: 40px 20px 30px;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: 130px 186px 176px 164px 122px;
  gap: 56px 16px;
  border-radius: calc(var(--radius-xl) + 6px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 14% 16%, rgba(255, 143, 76, 0.14), transparent 26%),
    radial-gradient(circle at 82% 12%, rgba(152, 219, 255, 0.12), transparent 24%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.024));
  overflow: hidden;
  isolation: isolate;
}

.method-architecture[data-focus="temporal"] {
  --arch-accent: rgba(152, 219, 255, 0.18);
  --arch-accent-strong: rgba(152, 219, 255, 0.84);
}

.method-architecture[data-focus="gui"] {
  --arch-accent: rgba(215, 239, 117, 0.16);
  --arch-accent-strong: rgba(215, 239, 117, 0.82);
}

.method-architecture::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 96%);
  pointer-events: none;
}

.method-architecture::after {
  content: "";
  position: absolute;
  inset: -16% -22%;
  background: linear-gradient(90deg, transparent, var(--arch-accent-strong), transparent);
  opacity: 0.05;
  transform: rotate(7deg);
  animation: dataSweep 8s linear infinite;
  pointer-events: none;
}

.flow-group-frame {
  position: absolute;
  z-index: 1;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.018);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.024);
  transition:
    opacity 220ms ease,
    border-color 220ms ease,
    background 220ms ease,
    box-shadow 220ms ease;
}

.flow-group-frame-inputs {
  inset: 24px 48px auto 48px;
  height: 156px;
}

.flow-group-frame-intent {
  inset: 214px 84px auto 84px;
  height: 214px;
}

.flow-group-frame-synthesis {
  inset: 470px 18px auto 18px;
  height: 344px;
}

.flow-group-frame-outputs {
  inset: 900px 8px auto 8px;
  height: 170px;
}

.flow-group-frame-intent,
.flow-group-frame-synthesis {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.flow-stage-label {
  position: absolute;
  top: 50%;
  left: 12px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 15, 24, 0.82);
  color: var(--accent-soft);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.62rem;
  white-space: nowrap;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: left center;
  pointer-events: none;
}

.flow-card.flow-card-agent {
  border-color: rgba(255, 191, 122, 0.42);
  background: linear-gradient(180deg, rgba(86, 46, 17, 0.98), rgba(58, 30, 12, 0.98));
  box-shadow:
    0 18px 46px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 211, 168, 0.12);
}

.flow-card.flow-card-data {
  border-color: rgba(152, 219, 255, 0.42);
  background: linear-gradient(180deg, rgba(18, 47, 72, 0.98), rgba(12, 31, 50, 0.98));
  box-shadow:
    0 18px 46px rgba(0, 0, 0, 0.24),
    inset 0 0 0 1px rgba(152, 219, 255, 0.12);
}

.flow-card {
  position: relative;
  z-index: 3;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.03)),
    rgba(7, 17, 27, 0.94);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
  padding: 18px;
  transition:
    opacity 220ms ease,
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    filter 220ms ease;
}

.flow-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 36%);
  pointer-events: none;
}

.flow-card:focus-visible {
  outline: none;
  border-color: rgba(255, 211, 168, 0.46);
}

.flow-card h3 {
  margin: 12px 0 0;
  font-size: clamp(1.24rem, 1.86vw, 1.88rem);
  line-height: 1.12;
}

.flow-card p {
  position: relative;
  z-index: 1;
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.68;
}

.flow-chip,
.flow-model-tag,
.flow-mini-tags span {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-soft);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.flow-card-video {
  grid-column: 2 / 7;
  grid-row: 1;
}

.flow-card-query {
  grid-column: 7 / 12;
  grid-row: 1;
}

.flow-group-frame-inputs .flow-stage-label {
  top: -1px;
  left: 50%;
  min-width: 129px;
  transform: translate(-50%, -50%);
  transform-origin: center;
}

.flow-group-frame-outputs .flow-stage-label {
  top: auto;
  bottom: -1px;
  left: 50%;
  min-width: 136px;
  transform: translate(-50%, 50%);
  transform-origin: center;
}

.flow-card-video h3,
.flow-card-query h3,
.flow-card-intent h3,
.flow-task-agent h3,
.flow-output h3 {
  margin-top: 0;
}

.flow-card-intent {
  grid-column: 2 / 12;
  grid-row: 2;
  min-height: 186px;
  padding: 30px 34px 28px;
}

.flow-card-route {
  grid-column: 2 / 12;
  grid-row: 3;
  min-height: 104px;
  padding: 20px 28px;
}

.flow-card-intent p,
.flow-card-route p {
  max-width: 54ch;
}

.flow-card-route h3 {
  font-size: clamp(1.12rem, 1.56vw, 1.46rem);
}

.flow-mini-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.flow-task-type {
  grid-row: 3;
  display: grid;
  align-content: start;
  width: 100%;
  max-width: 292px;
  justify-self: center;
  min-height: 176px;
  border-radius: 20px;
  border-color: rgba(255, 255, 255, 0.12);
}

.flow-task-agent::after,
.flow-output::after {
  content: none !important;
}

.flow-task-type-a {
  grid-column: 1 / 5;
}

.flow-task-type-b {
  grid-column: 5 / 9;
}

.flow-task-type-more {
  grid-column: 9 / 13;
}

.flow-model-tag {
  margin-top: 16px;
  color: var(--text);
  letter-spacing: 0.06em;
  text-transform: none;
  font-size: 0.72rem;
}

.flow-output {
  grid-row: 5;
  min-height: 122px;
}

.flow-task-agent {
  grid-row: 4;
  min-height: 164px;
}

.flow-task-agent-a {
  grid-column: 1 / 5;
}

.flow-task-agent-b {
  grid-column: 5 / 9;
}

.flow-task-agent-more {
  grid-column: 9 / 13;
}

.flow-output-tutorial {
  grid-column: 1 / 5;
}

.flow-output-temporal {
  grid-column: 5 / 9;
}

.flow-output-gui {
  grid-column: 9 / 13;
}

.flow-output-more {
  grid-column: 9 / 13;
}

.flow-svg {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.flow-arrow-head {
  fill: rgba(255, 223, 185, 0.98);
}

.flow-arrow-base,
.flow-arrow-flow {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.flow-arrow-base {
  stroke: rgba(255, 244, 229, 0.24);
  stroke-width: 7;
  opacity: 0.9;
}

.flow-arrow-flow {
  stroke: rgba(255, 223, 185, 0.98);
  stroke-width: 4.6;
  stroke-dasharray: 24 18;
  animation: flowDash 3.2s linear infinite;
  filter: drop-shadow(0 0 10px rgba(255, 211, 168, 0.22));
}

.validation-card h3 {
  margin: 10px 0 10px;
}

.validation-card p {
  margin: 0;
  line-height: 1.72;
}

.validation-index {
  color: var(--accent-soft);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.case-spotlight {
  position: static;
  top: auto;
  padding: 30px;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.case-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.case-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 82px;
  padding: 16px 18px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02)),
    rgba(9, 18, 28, 0.86);
  color: var(--text);
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background 220ms ease,
    box-shadow 220ms ease,
    opacity 220ms ease;
}

.case-nav-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 143, 76, 0.16), transparent 42%),
    linear-gradient(180deg, rgba(152, 219, 255, 0.12), transparent 54%);
  opacity: 0;
  transition: opacity 220ms ease;
}

.case-nav-item > * {
  position: relative;
  z-index: 1;
}

.case-nav-item:hover,
.case-nav-item:focus-visible,
.case-nav-item.is-active {
  transform: translateY(-4px);
  border-color: rgba(255, 187, 139, 0.38);
  background:
    linear-gradient(135deg, rgba(255, 179, 122, 0.16), rgba(152, 219, 255, 0.12)),
    rgba(10, 22, 33, 0.94);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.case-nav-item:hover::before,
.case-nav-item:focus-visible::before,
.case-nav-item.is-active::before {
  opacity: 1;
}

.case-nav-item:focus-visible {
  outline: none;
}

.case-nav-title {
  position: relative;
  z-index: 1;
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.spotlight-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.spotlight-domain {
  margin: 0;
  color: var(--accent-soft);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spotlight-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.spotlight-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 28px;
}

.spotlight-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.82;
}

.case-subnav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  width: fit-content;
  margin-top: 18px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.case-subnav[hidden] {
  display: none;
}

.case-subnav-label,
.case-subnav-count {
  color: rgba(190, 233, 255, 0.72);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.64rem;
}

.case-subnav-controls {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.case-subnav-current {
  min-width: 148px;
  text-align: center;
  color: rgba(255, 255, 255, 0.94);
  font-size: 0.84rem;
}

.case-subnav-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, opacity 180ms ease;
}

.case-subnav-button:hover:not(:disabled) {
  background: rgba(190, 233, 255, 0.08);
  border-color: rgba(190, 233, 255, 0.18);
}

.case-subnav-button:disabled {
  opacity: 0.34;
  cursor: default;
}

.case-spotlight h3 {
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  line-height: 1.02;
}

.case-spotlight.is-swapping {
  animation: spotlightSwap 360ms ease;
}

.case-chat-shell {
  position: relative;
  padding: 16px 16px 18px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at top right, rgba(80, 170, 255, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.024)),
    rgba(8, 16, 25, 0.98);
  box-shadow:
    0 26px 64px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.case-chat-topbar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 2px 4px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.case-chat-topbar p {
  margin: 0 0 0 2px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.chat-topbar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.chat-topbar-dot:first-child {
  background: rgba(255, 143, 76, 0.9);
}

.chat-topbar-dot:nth-child(2) {
  background: rgba(255, 198, 118, 0.82);
}

.chat-topbar-dot:nth-child(3) {
  background: rgba(102, 223, 172, 0.78);
}

.case-chat-thread {
  display: grid;
  gap: 18px;
  padding-top: 18px;
}

.chat-message {
  display: none;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  transition:
    opacity 320ms ease,
    transform 320ms ease;
}

.chat-message.is-mounted {
  display: grid;
}

.chat-message.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.chat-message-user {
  grid-template-columns: minmax(0, 1fr) 56px;
}

.chat-message-user .chat-bubble {
  grid-column: 1;
}

.chat-message-user .chat-avatar {
  grid-column: 2;
}

.chat-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  height: 56px;
  padding: 0 14px;
  border-radius: 18px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: none;
}

.chat-avatar-user {
  width: 56px;
  padding: 0;
  background: linear-gradient(135deg, rgba(255, 143, 76, 0.22), rgba(255, 198, 118, 0.14));
  border: 1px solid rgba(255, 187, 139, 0.3);
  color: rgba(255, 223, 185, 0.98);
}

.chat-avatar-ai {
  min-width: 98px;
  background: linear-gradient(135deg, rgba(102, 223, 172, 0.16), rgba(152, 219, 255, 0.16));
  border: 1px solid rgba(152, 219, 255, 0.22);
  color: rgba(202, 242, 255, 0.96);
}

.chat-bubble {
  width: 100%;
  padding: 18px;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.16);
}

.chat-bubble-user {
  max-width: min(72%, 760px);
  justify-self: end;
  background:
    radial-gradient(circle at top right, rgba(255, 170, 92, 0.18), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(22, 19, 17, 0.94);
}

.chat-bubble-assistant {
  max-width: min(84%, 900px);
  background:
    radial-gradient(circle at top left, rgba(102, 223, 172, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
    rgba(10, 18, 28, 0.95);
}

.chat-bubble-output {
  background:
    radial-gradient(circle at top right, rgba(102, 223, 172, 0.14), transparent 34%),
    radial-gradient(circle at bottom left, rgba(80, 170, 255, 0.1), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
    rgba(10, 18, 27, 0.96);
}

.chat-sample-card {
  padding: 14px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 13, 21, 0.5);
}

.chat-sample-card.is-parallel {
  padding: 0;
  border: 0;
  background: transparent;
}

.chat-upload-preview {
  position: relative;
  width: min(100%, 360px);
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 10, 16, 0.92);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

.chat-upload-preview[hidden] {
  display: none;
}

.case-input-assets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: min(100%, 360px);
}

.case-input-assets.is-landscape {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(100%, 560px);
}

.case-input-assets[hidden] {
  display: none;
}

.case-input-asset {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 10, 16, 0.92);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.case-input-asset video,
.case-input-asset img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
}

.case-input-assets.is-landscape .case-input-asset video,
.case-input-assets.is-landscape .case-input-asset img {
  aspect-ratio: 16 / 10;
}

.case-input-asset figcaption {
  position: absolute;
  left: 8px;
  bottom: 8px;
  padding: 6px 8px;
  border-radius: 999px;
  background: rgba(5, 13, 22, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
}

.case-input-video,
.case-input-poster {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  background: #04090f;
}

.case-input-video[hidden],
.case-input-poster[hidden] {
  display: none;
}

.case-input-fallback {
  display: grid;
  gap: 10px;
  align-content: center;
  min-height: 240px;
  padding: 18px;
  border-radius: 18px;
  background:
    radial-gradient(circle at top left, rgba(76, 181, 255, 0.16), transparent 40%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(6, 13, 21, 0.94);
}

.case-input-fallback[hidden] {
  display: none;
}

.case-input-fallback p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.chat-message-copy,
.chat-sample-card {
  margin-top: 14px;
}

.chat-message-copy {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.82;
  font-size: 0.98rem;
}

.chat-bubble-kicker {
  margin: 0;
  color: rgba(190, 233, 255, 0.72);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.7rem;
}

.case-thought-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.case-thought-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.case-thought-toggle:hover {
  border-color: rgba(190, 233, 255, 0.24);
  background: rgba(190, 233, 255, 0.08);
}

.case-thought-panel {
  margin-top: 14px;
}

.case-thought-panel[hidden] {
  display: none;
}

.chat-typing {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 20px;
  margin-bottom: 16px;
  transition: opacity 220ms ease, height 220ms ease, margin 220ms ease;
}

.chat-typing span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(202, 242, 255, 0.74);
  animation: chatTypingPulse 1.1s ease-in-out infinite;
}

.chat-typing span:nth-child(2) {
  animation-delay: 0.14s;
}

.chat-typing span:nth-child(3) {
  animation-delay: 0.28s;
}

.chat-typing.is-hidden {
  opacity: 0;
  height: 0;
  margin: 0;
  overflow: hidden;
}

.case-thought-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
}

.thought-card {
  display: none;
  padding: 16px 16px 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 14, 20, 0.5);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 260ms ease,
    transform 260ms ease;
}

.thought-card.is-mounted {
  display: block;
}

.thought-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.thought-card h5 {
  margin: 0 0 8px;
  font-size: 1rem;
  line-height: 1.3;
}

.thought-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.case-output-gallery {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  width: min(100%, 320px);
  margin-top: 10px;
}

.case-output-gallery.is-wide {
  width: min(100%, 1040px);
}

.case-output-gallery.is-wide.is-duo {
  width: min(100%, 960px);
}

.case-output-gallery.is-empty {
  display: none;
}

.case-output-entry {
  position: relative;
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 260ms ease,
    transform 260ms ease;
}

.case-output-entry.is-mounted {
  display: block;
}

.case-output-entry.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.case-output-entry-text {
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.case-output-entry-text p {
  margin: 0;
  color: var(--text);
  line-height: 1.82;
}

.case-output-entry-image {
  margin: 0;
  width: min(100%, 320px);
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 10, 16, 0.92);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
}

.case-output-entry-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-output-entry-video {
  margin: 0;
  width: min(100%, 280px);
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 10, 16, 0.92);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
}

.case-output-entry-video video {
  display: block;
  width: 100%;
  height: auto;
  background: #04090f;
}

.case-output-entry-parallel {
  width: 100%;
}

.case-output-parallel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.case-output-parallel-grid.is-duo {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.case-output-panel {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.case-output-panel-title {
  margin: 0 0 12px;
  font-size: 0.98rem;
  line-height: 1.3;
}

.case-output-panel-label {
  display: inline-flex;
  margin-bottom: 8px;
  color: rgba(190, 233, 255, 0.72);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.66rem;
}

.case-output-panel-video,
.case-output-panel-image {
  display: block;
  width: 100%;
  margin-bottom: 10px;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #04090f;
}

.case-output-panel-video {
  height: auto;
  aspect-ratio: 4 / 3;
}

.case-output-panel-image {
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: contain;
}

.case-output-panel-prompt {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, 0.92);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.6;
}

.case-output-panel-answer {
  margin: 0 0 12px;
  color: var(--text);
  line-height: 1.72;
}

.case-output-panel-thoughts {
  position: relative;
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
  padding: 18px 14px 12px;
  border-radius: 14px;
  border: 1px solid rgba(190, 233, 255, 0.12);
  background: rgba(190, 233, 255, 0.04);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.72;
}

.case-output-panel-thought-badge {
  position: absolute;
  top: 0;
  left: 14px;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(190, 233, 255, 0.16);
  background: rgba(8, 18, 29, 0.96);
  color: rgba(206, 240, 255, 0.9);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.62rem;
  line-height: 1;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.2);
}

.case-output-panel-step {
  margin: 0;
  color: rgba(222, 243, 255, 0.9);
}

.case-output-panel-thoughts .case-output-panel-image {
  margin-bottom: 0;
}

.case-output-panel-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.case-output-panel-gallery-image {
  display: block;
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #04090f;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.case-output-parallel-grid.is-duo .case-output-panel-gallery-image {
  aspect-ratio: 16 / 10;
}

.case-output-question {
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.84rem;
  line-height: 1.6;
}

.case-output-question[hidden],
.case-output-text[hidden],
.chat-sample-card[hidden] {
  display: none;
}

.case-output-text {
  margin: 0;
  color: var(--text);
  line-height: 1.8;
}

.case-output-field + .case-output-field {
  margin-top: 12px;
}

.chat-sample-card.is-parallel .case-output-field + .case-output-field {
  margin-top: 0;
}

.case-task-preview {
  width: min(100%, 280px);
  margin: 10px 0 12px;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 10, 16, 0.92);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.case-task-preview[hidden] {
  display: none;
}

.case-task-preview img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #04090f;
}

.case-task-preview video {
  display: block;
  width: 100%;
  height: auto;
  background: #04090f;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.case-task-preview video[hidden],
.case-task-preview img[hidden] {
  display: none;
}

.case-output-label {
  display: inline-flex;
  margin-bottom: 8px;
  color: rgba(190, 233, 255, 0.72);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.68rem;
}

.spotlight-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.spotlight-tags span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
}

@keyframes chatTypingPulse {
  from {
    transform: translateY(0);
    opacity: 0.4;
  }

  50% {
    transform: translateY(-4px);
    opacity: 1;
  }

  to {
    transform: translateY(0);
    opacity: 0.4;
  }
}

@keyframes spotlightSwap {
  from {
    opacity: 0.7;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.validation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.validation-card {
  padding: 26px;
  border-radius: var(--radius-lg);
}

.validation-card p {
  color: var(--muted);
}

.validation-summary {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 28px;
  margin-top: 28px;
  padding: 30px;
  border-radius: var(--radius-xl);
}

.summary-copy p:last-child {
  color: var(--muted);
  line-height: 1.86;
}

.summary-bars {
  display: grid;
  gap: 18px;
  align-content: center;
}

.summary-label-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
  color: var(--muted);
}

.summary-bar {
  display: block;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.summary-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent), var(--cool));
}

.validation-intro {
  max-width: 860px;
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.82;
}

.eval-setting-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.eval-setting-card,
.eval-benchmark-board,
.eval-table-shell {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.eval-setting-card {
  padding: 28px;
  border-radius: var(--radius-xl);
}

.eval-setting-card h3,
.eval-table-head h3,
.eval-benchmark-board h3 {
  margin: 10px 0 12px;
}

.eval-setting-card p,
.eval-benchmark-card p,
.eval-table-note {
  color: var(--muted);
}

.eval-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.eval-pill-list li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(233, 244, 255, 0.9);
  font-size: 0.86rem;
}

.eval-benchmark-board {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  margin-top: 28px;
  padding: 30px;
  border-radius: var(--radius-xl);
}

.eval-benchmark-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.eval-benchmark-card {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top right, rgba(102, 223, 172, 0.1), transparent 42%),
    rgba(7, 15, 24, 0.76);
}

.eval-benchmark-card h4 {
  margin: 10px 0 8px;
  font-size: 1rem;
}

.eval-benchmark-card p {
  margin: 0;
  line-height: 1.7;
}

.eval-benchmark-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(202, 242, 255, 0.92);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.66rem;
}

.eval-table-shell {
  margin-top: 28px;
  padding: 26px;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.eval-table-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 18px;
}

.eval-table-note {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}

.eval-table-wrap {
  overflow-x: auto;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 13, 22, 0.78);
}

.eval-table {
  width: 100%;
  min-width: 1120px;
  border-collapse: collapse;
}

.eval-table thead th {
  padding: 16px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 19, 30, 0.96);
  color: rgba(229, 243, 255, 0.94);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: left;
  white-space: nowrap;
}

.eval-table thead tr:first-child th {
  color: rgba(190, 233, 255, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
}

.eval-table tbody th,
.eval-table tbody td {
  padding: 15px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(240, 247, 255, 0.92);
  text-align: left;
}

.eval-table tbody tr {
  background: rgba(255, 255, 255, 0.015);
}

.eval-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.03);
}

.eval-table tbody tr.is-primary {
  background:
    linear-gradient(90deg, rgba(255, 158, 87, 0.12), rgba(94, 182, 255, 0.08)),
    rgba(255, 255, 255, 0.03);
}

.eval-method-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255, 143, 76, 0.18), rgba(152, 219, 255, 0.14));
  border: 1px solid rgba(255, 187, 139, 0.22);
  color: rgba(255, 234, 214, 0.98);
}

.eval-cell-empty {
  color: rgba(190, 233, 255, 0.5);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 640ms ease,
    transform 640ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes rotateRing {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes dataSweep {
  from {
    transform: translateX(-35%) rotate(8deg);
  }
  to {
    transform: translateX(35%) rotate(8deg);
  }
}

@keyframes flowPulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(255, 211, 168, 0.28);
    opacity: 0.55;
  }
  50% {
    box-shadow: 0 0 0 14px rgba(255, 211, 168, 0);
    opacity: 1;
  }
}

@keyframes flowDash {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -96;
  }
}


@media (max-width: 1120px) {
  .hero,
  .cases-layout,
  .validation-grid,
  .validation-summary,
  .eval-setting-grid,
  .eval-benchmark-board {
    grid-template-columns: 1fr;
  }

  .case-spotlight {
    position: static;
  }

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

  .spotlight-header {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .spotlight-meta {
    align-items: center;
  }

  .chat-bubble-user,
  .chat-bubble-assistant {
    max-width: 100%;
  }

  .case-output-gallery {
    width: min(100%, 480px);
  }

  .case-output-parallel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .method-architecture {
    min-height: auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 24px;
  }

  .flow-group-frame,
  .flow-svg {
    display: none;
  }

  .flow-card {
    min-height: 0;
  }
}

@media (max-width: 760px) {
  .site-nav {
    width: calc(100% - 20px);
    padding: 12px 14px;
  }

  .nav-links {
    gap: 12px;
    font-size: 0.92rem;
  }

  .section {
    width: calc(100% - 20px);
    padding: 68px 0;
  }

  .hero {
    gap: 30px;
    min-height: auto;
    padding-top: 28px;
  }

  .hero-stats,
  .validation-grid,
  .eval-setting-grid,
  .eval-benchmark-grid {
    grid-template-columns: 1fr;
  }

  .case-output-parallel-grid {
    grid-template-columns: 1fr;
  }

  .case-output-panel-gallery {
    grid-template-columns: 1fr;
  }

  .case-subnav {
    grid-template-columns: 1fr;
    justify-items: center;
    width: 100%;
    border-radius: 20px;
  }

  .hero-stage {
    min-height: 520px;
  }

  .hero-panel-wide {
    left: 0;
    right: 12%;
  }

  .hero-panel-top,
  .hero-panel-mid {
    width: auto;
    left: 10%;
    right: 0;
  }

  .hero-panel-top {
    top: 6%;
  }

  .hero-panel-mid {
    bottom: 10%;
  }

  .method-architecture,
  .case-spotlight,
  .validation-summary,
  .eval-setting-card,
  .eval-benchmark-board,
  .eval-table-shell {
    padding: 24px;
  }

  .eval-table-head {
    flex-direction: column;
    align-items: start;
  }

  .eval-table-note {
    white-space: normal;
  }

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

  .chat-message {
    grid-template-columns: max-content minmax(0, 1fr);
    gap: 12px;
  }

  .chat-message-user {
    grid-template-columns: minmax(0, 1fr) 44px;
  }

  .chat-message-user .chat-bubble {
    grid-column: 1;
  }

  .chat-message-user .chat-avatar {
    grid-column: 2;
  }

  .chat-avatar {
    min-width: 44px;
    height: 44px;
    padding: 0 10px;
    border-radius: 14px;
    font-size: 0.7rem;
  }

  .chat-avatar-user {
    width: 44px;
    padding: 0;
  }

  .chat-avatar-ai {
    min-width: 86px;
  }

  .chat-bubble {
    padding: 16px;
    border-radius: 22px;
  }

  .case-output-gallery {
    width: 100%;
  }

  .case-input-assets {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}