/* ==========================================================================
   小南风科技 XNF TECH — AI 科技风视觉系统
   Design tokens · Layout · Components · Motion
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --bg: #05070e;
  --bg-soft: #080c17;
  --bg-raise: #0b1020;
  --ink: #e9eefb;
  --ink-2: #b8c4dc;
  --muted: #8593ad;
  --muted-2: #5d6a83;

  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);

  --blue: #4d7cff;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --mint: #3ef2c0;
  --amber: #ffb457;

  --grad-brand: linear-gradient(120deg, #4d7cff 0%, #7c5cff 45%, #22d3ee 100%);
  --grad-text: linear-gradient(100deg, #ffffff 0%, #d3e2ff 26%, #8fb9ff 52%, #7ee8ff 76%, #c4a6ff 100%);
  --grad-line: linear-gradient(90deg, transparent, rgba(125, 160, 255, 0.5), transparent);

  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 26px;
  --wrap: 1200px;

  --font-sans: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;

  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 24px 60px -30px rgba(0, 0, 0, 0.9);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Reset & base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

::selection {
  background: rgba(77, 124, 255, 0.35);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 3. Layout helpers ---------- */
.wrap {
  width: min(var(--wrap), calc(100% - 44px));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: clamp(62px, 7.2vw, 108px);
}

.section--tight {
  padding-block: clamp(44px, 5vw, 72px);
}

.divider {
  height: 1px;
  background: var(--grad-line);
  opacity: 0.7;
}

.text-grad {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--muted);
}

/* ---------- 4. Ambient background ---------- */
.aurora-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.aurora--a {
  width: 46vw;
  height: 46vw;
  left: -8vw;
  top: -14vw;
  background: radial-gradient(circle, rgba(77, 124, 255, 0.55), transparent 66%);
  animation: drift-a 22s var(--ease) infinite alternate;
}

.aurora--b {
  width: 40vw;
  height: 40vw;
  right: -6vw;
  top: 6vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.5), transparent 66%);
  animation: drift-b 26s var(--ease) infinite alternate;
}

.aurora--c {
  width: 36vw;
  height: 36vw;
  left: 34vw;
  bottom: -18vw;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.32), transparent 68%);
  animation: drift-c 30s var(--ease) infinite alternate;
}

@keyframes drift-a {
  to {
    transform: translate3d(6vw, 5vw, 0) scale(1.12);
  }
}

@keyframes drift-b {
  to {
    transform: translate3d(-5vw, 7vw, 0) scale(1.08);
  }
}

@keyframes drift-c {
  to {
    transform: translate3d(-4vw, -6vw, 0) scale(1.15);
  }
}

.grid-veil {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 0%, transparent 72%);
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main,
.site-footer {
  position: relative;
  z-index: 2;
}

/* ---------- 5. Navbar ---------- */
.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  padding: 14px 0;
  transition: padding 0.35s var(--ease);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 10px 12px 10px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}

.site-nav.is-stuck .nav-inner {
  background: rgba(8, 12, 23, 0.72);
  border-color: var(--line);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: 0 18px 44px -28px rgba(0, 0, 0, 0.95);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand__mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.brand__name {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name b {
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.brand__name span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.3em;
  color: var(--muted-2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  position: relative;
  padding: 8px 13px;
  font-size: 14px;
  color: var(--ink-2);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s;
  white-space: nowrap;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.is-active {
  color: #fff;
}

.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1px;
  width: 16px;
  height: 2px;
  translate: -50% 0;
  border-radius: 2px;
  background: var(--grad-brand);
}

.nav-links a.nav-lang {
  display: inline-flex;
  align-items: center;
  height: 30px;
  margin-right: 4px;
  padding: 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.nav-links a.nav-lang:hover {
  color: #fff;
  border-color: rgba(125, 160, 255, 0.45);
  background: rgba(77, 124, 255, 0.12);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px !important;
  font-size: 13.5px !important;
  color: #fff !important;
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(77, 124, 255, 0.95), rgba(124, 92, 255, 0.95));
  box-shadow: 0 10px 30px -12px rgba(77, 124, 255, 0.9);
}

.nav-cta:hover {
  filter: brightness(1.1);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  position: relative;
  width: 16px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: 0.3s var(--ease);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: 0.3s var(--ease);
}

.nav-toggle span::before {
  top: -5px;
}

.nav-toggle span::after {
  top: 5px;
}

.nav-open .nav-toggle span {
  background: transparent;
}

.nav-open .nav-toggle span::before {
  top: 0;
  rotate: 45deg;
}

.nav-open .nav-toggle span::after {
  top: 0;
  rotate: -45deg;
}

/* ---------- 6. Buttons & chips ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 48px;
  padding: 0 24px;
  font-size: 14.5px;
  font-weight: 500;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background 0.3s, border-color 0.3s;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn--primary {
  color: #fff;
  background: linear-gradient(120deg, #3f6dff, #7a56ff 55%, #1bb9d8);
  background-size: 160% 100%;
  box-shadow: 0 14px 40px -16px rgba(88, 108, 255, 0.95), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  background-position: 100% 0;
  box-shadow: 0 20px 48px -16px rgba(88, 108, 255, 1);
}

.btn--ghost {
  color: var(--ink);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(140, 170, 255, 0.45);
}

.btn--sm {
  height: 40px;
  padding: 0 18px;
  font-size: 13px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 32px;
  padding: 0 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #b9c9ea;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
}

.chip i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(62, 242, 192, 0.16);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 3px rgba(62, 242, 192, 0.16);
  }
  50% {
    opacity: 0.55;
    box-shadow: 0 0 0 5px rgba(62, 242, 192, 0.05);
  }
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 25px;
  padding: 0 10px;
  font-size: 11.5px;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.03);
}

/* ---------- 7. Section heading ---------- */
.sec-head {
  max-width: 730px;
  margin-bottom: clamp(34px, 4vw, 56px);
}

.sec-head--center {
  margin-inline: auto;
  text-align: center;
}

.sec-head__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: #7f9bd6;
}

.sec-head--center .sec-head__eyebrow {
  justify-content: center;
}

.sec-head__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, rgba(120, 150, 255, 0.9), transparent);
}

.sec-head--center .sec-head__eyebrow::before {
  display: none;
}

.sec-head h2 {
  font-size: clamp(1.75rem, 3.3vw, 2.7rem);
  letter-spacing: -0.025em;
}

.sec-head p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.8;
}

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(120px, 15vw, 176px);
  padding-bottom: clamp(48px, 6vw, 86px);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: clamp(34px, 4.5vw, 64px);
  align-items: center;
}

.hero__title {
  margin: 22px 0 0;
  font-size: clamp(2.35rem, 5vw, 3.95rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.hero__title em {
  font-style: normal;
  display: inline-block;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  margin-top: 24px;
  max-width: 540px;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--ink-2);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero__facts div {
  font-size: 12.5px;
  color: var(--muted);
}

.hero__facts b {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

/* Console card */
.console {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, rgba(18, 25, 46, 0.94), rgba(8, 12, 23, 0.96));
  box-shadow: var(--shadow-card), 0 0 90px -40px rgba(77, 124, 255, 0.85);
  overflow: hidden;
  isolation: isolate;
}

.console::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, rgba(126, 158, 255, 0.55), transparent 42%, rgba(34, 211, 238, 0.3));
  -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  mask-composite: exclude;
  pointer-events: none;
}

.console__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.console__dots {
  display: flex;
  gap: 6px;
}

.console__dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.console__dots i:first-child {
  background: rgba(255, 107, 107, 0.65);
}

.console__dots i:nth-child(2) {
  background: rgba(255, 196, 87, 0.65);
}

.console__dots i:nth-child(3) {
  background: rgba(62, 242, 192, 0.6);
}

.console__title {
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.console__state {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--mint);
  text-transform: uppercase;
}

.console__state i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  animation: pulse-dot 2s ease-in-out infinite;
}

.console__body {
  min-height: 316px;
  padding: 18px 18px 22px;
  font-family: var(--font-mono);
  font-size: 12.3px;
  line-height: 1.95;
  color: #a9b9d6;
}

.ln {
  display: flex;
  gap: 9px;
  opacity: 0;
  transform: translateY(4px);
  animation: ln-in 0.34s var(--ease) forwards;
}

@keyframes ln-in {
  to {
    opacity: 1;
    transform: none;
  }
}

.ln__no {
  color: #46536e;
  flex-shrink: 0;
}

.ln__k {
  flex-shrink: 0;
  color: #8ea6d8;
}

.ln__k--plan {
  color: #a98bff;
}

.ln__k--tool {
  color: #4fd6f5;
}

.ln__k--ok {
  color: var(--mint);
}

.ln__k--warn {
  color: var(--amber);
}

.ln__more {
  color: #5a6884;
  font-style: italic;
}

.console__caret {
  display: inline-block;
  width: 7px;
  height: 14px;
  translate: 0 2px;
  background: var(--cyan);
  animation: blink 1.05s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.console__foot {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.console__foot span:last-child {
  margin-left: auto;
  color: #7f9bd6;
}

/* floating stat bubble */
.hero__bubble {
  position: absolute;
  right: -14px;
  bottom: 54px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: rgba(11, 16, 32, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 50px -24px #000;
  animation: float-y 6s ease-in-out infinite;
}

@keyframes float-y {
  50% {
    transform: translateY(-9px);
  }
}

.hero__bubble svg {
  width: 26px;
  height: 26px;
  color: var(--cyan);
}

.hero__bubble b {
  display: block;
  font-size: 13px;
  color: #fff;
}

.hero__bubble span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  text-transform: uppercase;
}

/* ---------- 9. Marquee ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 20px 0;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  gap: 54px;
  animation: marquee 34s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__track span {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  white-space: nowrap;
}

.marquee__track span::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(125, 160, 255, 0.6);
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- 10. Metrics ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.metric {
  padding: 26px 24px;
  background: linear-gradient(180deg, rgba(13, 19, 35, 0.9), rgba(7, 11, 21, 0.9));
}

.metric b {
  display: block;
  font-size: clamp(1.6rem, 2.6vw, 2.15rem);
  font-weight: 650;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, #fff, #a8c4ff 70%, #6ee7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.metric > span {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--muted);
}

.metric b span {
  font: inherit;
  letter-spacing: inherit;
}

/* ---------- 11. Cards ---------- */
.card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(175deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s, background 0.45s;
  isolation: isolate;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  background: radial-gradient(
    340px circle at var(--mx, 50%) var(--my, 0%),
    rgba(110, 148, 255, 0.16),
    transparent 62%
  );
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(125, 160, 255, 0.32);
}

.card:hover::after {
  opacity: 1;
}

.card__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  border: 1px solid rgba(125, 160, 255, 0.25);
  border-radius: 13px;
  background: linear-gradient(150deg, rgba(77, 124, 255, 0.22), rgba(139, 92, 246, 0.1));
  color: #9dc0ff;
}

.card__icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

/* ---------- 12. Agent stack (layered architecture) ---------- */
.stack {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: radial-gradient(120% 100% at 50% 0%, rgba(77, 124, 255, 0.1), transparent 60%),
    rgba(8, 12, 23, 0.7);
}

.stack__row {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.028);
  transition: border-color 0.35s, background 0.35s, transform 0.35s var(--ease);
}

.stack__row:hover {
  border-color: rgba(125, 160, 255, 0.4);
  background: rgba(77, 124, 255, 0.09);
  transform: translateX(3px);
}

.stack__row--core {
  background: linear-gradient(100deg, rgba(77, 124, 255, 0.16), rgba(139, 92, 246, 0.1));
  border-color: rgba(125, 160, 255, 0.38);
}

.stack__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #8ea6d8;
  line-height: 1.5;
}

.stack__label small {
  display: block;
  font-size: 9px;
  color: var(--muted-2);
  letter-spacing: 0.1em;
}

.stack__items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stack__items span {
  padding: 4px 10px;
  font-size: 12px;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(6, 9, 18, 0.55);
}

.stack__row--core .stack__items span {
  border-color: rgba(160, 180, 255, 0.3);
  color: #e6ecff;
}

/* ---------- 13. Feature list ---------- */
.feature-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.feature-list li {
  display: flex;
  gap: 14px;
  padding: 0;
  list-style: none;
}

.feature-list ul {
  margin: 0;
  padding: 0;
}

.fl__icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  margin-top: 2px;
  border: 1px solid rgba(62, 242, 192, 0.3);
  border-radius: 9px;
  color: var(--mint);
  background: rgba(62, 242, 192, 0.08);
}

.fl__icon svg {
  width: 15px;
  height: 15px;
}

.feature-list b {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}

.feature-list p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.72;
}

/* ---------- 14. Splits ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(30px, 4.5vw, 64px);
  align-items: center;
}

.split--wide-left {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

/* ---------- 15. Solutions / cases ---------- */
.solution {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(175deg, rgba(16, 23, 43, 0.9), rgba(7, 11, 21, 0.92));
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s;
}

.solution::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -30%;
  width: 70%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow, rgba(77, 124, 255, 0.28)), transparent 66%);
  filter: blur(6px);
  transition: opacity 0.5s;
  opacity: 0.75;
}

.solution:hover {
  transform: translateY(-5px);
  border-color: rgba(125, 160, 255, 0.34);
}

.solution__no {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--muted-2);
}

.solution h3 {
  margin: 12px 0 12px;
  font-size: 18.5px;
}

.solution p {
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--muted);
}

.solution__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.solution__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  color: var(--ink-2);
}

.solution__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: linear-gradient(135deg, #6d9bff, #22d3ee);
}

.solution__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

/* case cards */
.case {
  position: relative;
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-raise);
}

.case img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.case::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(4, 6, 12, 0.96) 0%,
    rgba(4, 6, 12, 0.88) 15%,
    rgba(4, 6, 12, 0.55) 28%,
    rgba(4, 6, 12, 0.16) 42%,
    transparent 56%
  );
  transition: opacity 0.5s var(--ease);
}

.case:hover img {
  transform: scale(1.04);
}

.case:hover::after {
  opacity: 0.82;
}

.case__body {
  position: absolute;
  inset: auto 0 0;
  z-index: 2;
  padding: 20px 22px;
}

.case__body .mono {
  color: #7f9bd6;
}

.case__body h3 {
  margin-top: 6px;
  font-size: 16.5px;
}

.case:hover .case__arrow {
  transform: translate(3px, -3px);
  opacity: 1;
}

.case__arrow {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(8, 12, 23, 0.6);
  backdrop-filter: blur(6px);
  opacity: 0.65;
  transition: 0.4s var(--ease);
}

.case__arrow svg {
  width: 15px;
  height: 15px;
}

/* ---------- 16. Advantages ---------- */
.adv {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.adv__item {
  padding: 26px 24px;
  background: rgba(7, 11, 21, 0.85);
  transition: background 0.4s;
}

.adv__item:hover {
  background: rgba(77, 124, 255, 0.08);
}

.adv__item b {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}

.adv__item p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}

.adv__no {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted-2);
  margin-bottom: 10px;
}

/* ---------- 17. CTA ---------- */
.cta {
  position: relative;
  padding: clamp(38px, 5vw, 64px);
  border: 1px solid rgba(125, 160, 255, 0.28);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: radial-gradient(120% 140% at 12% 0%, rgba(77, 124, 255, 0.24), transparent 58%),
    radial-gradient(110% 130% at 92% 110%, rgba(34, 211, 238, 0.16), transparent 58%),
    linear-gradient(180deg, rgba(15, 21, 40, 0.94), rgba(7, 11, 21, 0.96));
  text-align: center;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, #000, transparent 72%);
  mask-image: radial-gradient(ellipse at 50% 50%, #000, transparent 72%);
  pointer-events: none;
}

.cta > * {
  position: relative;
}

.cta h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  max-width: 720px;
  margin-inline: auto;
}

.cta p {
  max-width: 560px;
  margin: 16px auto 0;
  color: var(--ink-2);
  font-size: 15px;
}

.cta__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 18. Page hero (sub pages) ---------- */
.page-hero {
  position: relative;
  padding-top: clamp(130px, 15vw, 180px);
  padding-bottom: clamp(30px, 4vw, 56px);
}

.page-hero__title {
  margin-top: 22px;
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  letter-spacing: -0.03em;
  max-width: 900px;
}

.page-hero__sub {
  margin-top: 22px;
  max-width: 680px;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.85;
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.crumbs b {
  color: #8ea6d8;
  font-weight: 500;
}

/* ---------- 19. Agent demo ---------- */
.demo {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 18px;
  align-items: stretch;
}

.demo__panel {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(9, 13, 25, 0.8);
  overflow: hidden;
}

.demo__head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.scenario-list {
  padding: 12px;
  display: grid;
  gap: 8px;
}

.scenario {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.022);
  transition: 0.3s var(--ease);
}

.scenario:hover {
  background: rgba(255, 255, 255, 0.05);
}

.scenario.is-active {
  border-color: rgba(125, 160, 255, 0.42);
  background: linear-gradient(100deg, rgba(77, 124, 255, 0.16), rgba(139, 92, 246, 0.07));
}

.scenario__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted-2);
  padding-top: 3px;
}

.scenario b {
  display: block;
  font-size: 14px;
  font-weight: 550;
  color: var(--ink);
}

.scenario span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 3px;
  line-height: 1.6;
}

.demo__prompt {
  margin: 4px 12px 12px;
  padding: 13px 14px;
  border: 1px dashed rgba(125, 160, 255, 0.3);
  border-radius: 12px;
  background: rgba(77, 124, 255, 0.06);
  font-size: 12.5px;
  color: var(--ink-2);
  line-height: 1.72;
}

.demo__prompt .mono {
  display: block;
  margin-bottom: 6px;
  color: #7f9bd6;
}

.demo__run {
  width: calc(100% - 24px);
  margin: auto 12px 14px;
}

.demo__run[disabled] {
  opacity: 0.62;
  cursor: progress;
}

.demo__trace {
  display: flex;
  flex-direction: column;
  min-height: 480px;
}

.trace-log {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  max-height: 520px;
  display: grid;
  gap: 10px;
  align-content: start;
  scrollbar-width: thin;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 18px);
  mask-image: linear-gradient(to bottom, transparent 0, #000 18px);
}

.trace-log::-webkit-scrollbar {
  width: 6px;
}

.trace-log::-webkit-scrollbar-thumb {
  background: rgba(125, 160, 255, 0.25);
  border-radius: 3px;
}

.step {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.022);
  padding: 12px 14px;
  opacity: 0;
  transform: translateY(8px);
  animation: ln-in 0.4s var(--ease) forwards;
}

.step__top {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.step__badge {
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 9.5px;
  letter-spacing: 0.12em;
  border: 1px solid currentColor;
}

.step--plan .step__badge {
  color: #a98bff;
  background: rgba(169, 139, 255, 0.1);
}

.step--tool .step__badge {
  color: #4fd6f5;
  background: rgba(79, 214, 245, 0.1);
}

.step--think .step__badge {
  color: #ffb457;
  background: rgba(255, 180, 87, 0.1);
}

.step--answer .step__badge {
  color: var(--mint);
  background: rgba(62, 242, 192, 0.1);
}

.step__time {
  margin-left: auto;
  text-transform: none;
  letter-spacing: 0.06em;
}

.step__body {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
}

.step--answer .step__body {
  color: #dbe6ff;
}

.step__body code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #9dc0ff;
  background: rgba(77, 124, 255, 0.12);
  padding: 1px 5px;
  border-radius: 4px;
}

.step__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 9px;
}

.step__tools span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: #9dc0ff;
  padding: 3px 8px;
  border: 1px solid rgba(125, 160, 255, 0.25);
  border-radius: 6px;
  background: rgba(77, 124, 255, 0.08);
}

.demo__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  padding: 11px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--muted-2);
}

.demo__meta b {
  color: #8ea6d8;
  font-weight: 500;
}

.typing::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 12px;
  margin-left: 2px;
  translate: 0 1px;
  background: var(--cyan);
  animation: blink 1s steps(1) infinite;
}

/* ---------- 20. Charts / bars ---------- */
.bars {
  display: grid;
  gap: 18px;
}

.bar__top {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--ink-2);
  margin-bottom: 8px;
}

.bar__top b {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #9dc0ff;
  letter-spacing: 0.04em;
}

.bar__track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.bar__fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #4d7cff, #22d3ee);
  box-shadow: 0 0 16px rgba(77, 124, 255, 0.6);
  transition: width 1.2s var(--ease);
}

/* ---------- 21. Process timeline ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  counter-reset: step;
}

.process__item {
  position: relative;
  padding-top: 30px;
}

.process__item::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(125, 160, 255, 0.55), rgba(125, 160, 255, 0.08));
}

.process__item::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #0b1020;
  border: 2px solid #6d9bff;
  box-shadow: 0 0 14px rgba(109, 155, 255, 0.8);
}

.process__item b {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}

.process__item p {
  font-size: 12.8px;
  color: var(--muted);
  line-height: 1.7;
}

.process__no {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted-2);
  margin-bottom: 8px;
}

/* ---------- 22. Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 18px;
  align-items: start;
}

.qr-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.028);
  text-align: center;
}

.qr-card__img {
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.qr-card__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-card b {
  display: block;
  margin-top: 14px;
  font-size: 14px;
}

.qr-card span {
  font-size: 12px;
  color: var(--muted);
}

.info-list {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.info-list > div {
  padding: 18px 20px;
  background: rgba(8, 12, 23, 0.85);
}

.info-list dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 6px;
}

.info-list dd {
  margin: 0;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.7;
}

/* ---------- 23. Footer ---------- */
.site-footer {
  padding-top: 56px;
  padding-bottom: 30px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(5, 7, 14, 0.9));
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 0.7fr));
  gap: 34px;
  padding-bottom: 38px;
}

.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 14px;
  font-weight: 500;
}

.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.footer-grid a {
  font-size: 13.5px;
  color: var(--ink-2);
  transition: color 0.25s;
}

.footer-grid a:hover {
  color: #fff;
}

.footer-brand p {
  margin-top: 14px;
  max-width: 320px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: space-between;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted-2);
}

.footer-bottom a {
  color: var(--muted-2);
}

.footer-bottom a:hover {
  color: var(--ink-2);
}

/* ---------- 24. Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 25. Responsive ---------- */
@media (max-width: 1080px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero__sub {
    max-width: none;
  }

  .demo {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 26px;
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid > :last-child {
    grid-column: 1 / -1;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(8, 12, 23, 0.97);
    backdrop-filter: blur(20px);
    box-shadow: 0 30px 60px -30px #000;
    display: none;
  }

  .nav-open .nav-links {
    display: flex;
  }

  .nav-links a {
    padding: 12px 14px;
    border-radius: 12px;
  }

  .nav-links a.is-active::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-inner {
    position: relative;
    padding: 8px 10px 8px 14px;
  }

  .site-nav.is-stuck .nav-inner,
  .nav-open .nav-inner {
    background: rgba(8, 12, 23, 0.92);
  }

  .grid-3,
  .grid-2,
  .split,
  .split--wide-left {
    grid-template-columns: 1fr;
  }

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

  .adv {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .wrap {
    width: calc(100% - 32px);
  }

  .nav-links a.nav-lang {
    align-self: flex-start;
    margin: 4px 0 8px;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  .adv {
    grid-template-columns: 1fr;
  }

  .hero__bubble {
    display: none;
  }

  .console__body {
    font-size: 11.4px;
    min-height: 250px;
  }

  .process {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .hero__facts {
    gap: 14px 22px;
  }

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

/* ---------- 26. Extras ---------- */
/* 英文排版：同等字号下英文视觉更重，标题适度收敛 */
html[lang="en"] .sec-head h2 {
  font-size: clamp(1.6rem, 2.9vw, 2.3rem);
  letter-spacing: -0.03em;
}

html[lang="en"] .cta h2 {
  font-size: clamp(1.55rem, 2.8vw, 2.15rem);
}

html[lang="en"] .page-hero__title {
  letter-spacing: -0.035em;
}
.hero__visual {
  position: relative;
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.flow__node {
  position: relative;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, rgba(77, 124, 255, 0.11), rgba(255, 255, 255, 0.015));
}

.flow__node::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16px;
  right: 16px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125, 160, 255, 0.85), transparent);
}

.flow__node em {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: #7f9bd6;
  font-style: normal;
  text-transform: uppercase;
}

.flow__node b {
  display: block;
  margin: 7px 0 6px;
  font-size: 14.5px;
}

.flow__node p {
  font-size: 12.3px;
  line-height: 1.65;
  color: var(--muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chips span {
  padding: 6px 12px;
  font-size: 12.5px;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  transition: 0.3s;
}

.chips span:hover {
  border-color: rgba(125, 160, 255, 0.45);
  color: #fff;
  background: rgba(77, 124, 255, 0.1);
}

.case-item .case {
  aspect-ratio: 16 / 11;
}

.case-item h3 {
  margin-top: 16px;
  font-size: 16.5px;
}

.case-item > p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(175deg, rgba(13, 19, 35, 0.86), rgba(7, 11, 21, 0.9));
}

.panel h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.panel > p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.note {
  display: flex;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid rgba(125, 160, 255, 0.22);
  border-left: 2px solid #6d9bff;
  border-radius: 10px;
  background: rgba(77, 124, 255, 0.07);
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.8;
}

.note b {
  color: #fff;
}

/* ---------- 27. Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .ln {
    opacity: 1;
    transform: none;
  }
}