/* =========================================================
   智尧科技 · 设计系统
   Palette: #fffcff (paper)  #242022 (ink)  #e73e2d (signal)
   ========================================================= */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Core tokens */
  --paper: #fffcff;
  --ink: #242022;
  --signal: #e73e2d;

  /* Derived neutrals */
  --ink-2: #4a4548;      /* secondary text */
  --ink-3: #8a8487;      /* tertiary text */
  --line: #ece6e8;       /* hairlines */
  --surface: #f5eff1;    /* card surface */
  --surface-2: #efe8eb;  /* deeper surface */

  /* Signal variants */
  --signal-soft: rgba(231, 62, 45, 0.08);
  --signal-mid: rgba(231, 62, 45, 0.18);
  --signal-glow: rgba(231, 62, 45, 0.35);
  --signal-hover: #d23222;

  /* Type */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --font-display: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Motion */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 220ms;
  --dur-mid: 420ms;
  --dur-slow: 720ms;

  /* Layout */
  --maxw: 1240px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --header-h: 76px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Optional grain texture (toggleable via body[data-grain]) */
body[data-grain="on"]::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.04;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.6'/></svg>");
}

/* Decorative grid behind hero (toggleable via body[data-bg]) */
body[data-bg="grid"] main::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 65%);
}

body[data-bg="dots"] main::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(var(--ink-3) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.25;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 60%);
}

body[data-bg="blob"] main::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 540px;
  height: 540px;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle, var(--signal-mid), transparent 70%);
  filter: blur(40px);
  animation: blob-float 12s var(--ease-in-out-quart) infinite;
}

@keyframes blob-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-40px, 40px) scale(1.15); }
}

main {
  position: relative;
  padding-top: var(--header-h);
}

main > * {
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out-quart);
}

a:hover {
  color: var(--signal);
}

::selection {
  background: var(--signal);
  color: var(--paper);
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* =========================================================
   HEADER
   ========================================================= */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 252, 255, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-mid) var(--ease-out-quart),
    background var(--dur-mid) var(--ease-out-quart);
}

header[data-scrolled="true"] {
  border-bottom-color: var(--line);
  background: rgba(255, 252, 255, 0.92);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.1rem var(--gutter);
}

.logo {
  font-family: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.logo::before {
  content: "";
  width: 12px;
  height: 12px;
  background: var(--signal);
  border-radius: 3px;
  transform: rotate(45deg);
  animation: logo-pulse 3.4s var(--ease-in-out-quart) infinite;
}

@keyframes logo-pulse {
  0%, 100% { transform: rotate(45deg) scale(1); box-shadow: 0 0 0 0 var(--signal-glow); }
  50% { transform: rotate(225deg) scale(1.1); box-shadow: 0 0 0 8px transparent; }
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--ink-2);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  position: relative;
  transition: color var(--dur-fast) var(--ease-out-quart),
    background var(--dur-fast) var(--ease-out-quart);
}

.nav-links a:hover {
  color: var(--ink);
  background: var(--surface);
}

.nav-links a.active {
  color: var(--paper);
  background: var(--ink);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  right: 0.55rem;
  top: 50%;
  width: 5px;
  height: 5px;
  background: var(--signal);
  border-radius: 50%;
  transform: translateY(-50%);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem !important;
  background: var(--signal) !important;
  color: var(--paper) !important;
  border-radius: 999px;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--signal-hover) !important;
  color: var(--paper) !important;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  min-height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem var(--gutter) 6rem;
  max-width: var(--maxw);
  margin: 0 auto;
  position: relative;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 1.5rem;
  padding: 0.4rem 0.9rem;
  background: var(--signal-soft);
  border-radius: 999px;
  width: fit-content;
}

.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--signal);
  border-radius: 50%;
  animation: pulse-dot 1.6s var(--ease-in-out-quart) infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.6); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7.2vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.98;
  color: var(--ink);
  margin-bottom: 1.6rem;
  max-width: 18ch;
}

.hero h1 .accent {
  color: var(--signal);
  position: relative;
  display: inline-block;
}

.hero h1 .accent::after {
  content: ".";
  color: var(--signal);
}

.hero p {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--ink-2);
  max-width: 56ch;
  margin-bottom: 2.5rem;
  line-height: 1.55;
}

.hero-btns {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  max-width: 720px;
}

.hero-meta-item .num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: block;
}

.hero-meta-item .num em {
  font-style: normal;
  color: var(--signal);
}

.hero-meta-item .lbl {
  font-size: 0.82rem;
  color: var(--ink-3);
  margin-top: 0.2rem;
}

/* Hero decoration */
.hero-deco {
  position: absolute;
  top: 8%;
  right: -4%;
  width: 380px;
  height: 380px;
  pointer-events: none;
  z-index: 0;
}

.hero-deco svg {
  width: 100%;
  height: 100%;
  animation: deco-spin 40s linear infinite;
}

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

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out-quart);
  border: 1.5px solid transparent;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn::after {
  content: "→";
  font-weight: 400;
  transition: transform var(--dur-fast) var(--ease-out-quart);
}

.btn:hover::after {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--signal);
  transform: translateY(100%);
  transition: transform var(--dur-mid) var(--ease-out-quart);
  z-index: -1;
}

.btn-primary:hover {
  color: var(--paper);
  border-color: var(--signal);
}

.btn-primary:hover::before {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn-secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-signal {
  background: var(--signal);
  color: var(--paper);
}

.btn-signal:hover {
  background: var(--signal-hover);
  box-shadow: 0 12px 32px -10px var(--signal-glow);
  transform: translateY(-2px);
}

/* =========================================================
   SECTIONS
   ========================================================= */
.section {
  padding: clamp(4rem, 10vw, 8rem) 0;
  position: relative;
}

.section.alt {
  background: var(--surface);
}

.section-head {
  margin-bottom: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 720px;
}

.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--ink);
}

.section-title .accent {
  color: var(--signal);
}

.section-sub {
  font-size: 1.05rem;
  color: var(--ink-2);
  max-width: 60ch;
  margin-top: 0.25rem;
}

/* =========================================================
   GRIDS & CARDS
   ========================================================= */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--signal-soft), transparent 60%);
  opacity: 0;
  transition: opacity var(--dur-mid) var(--ease-out-quart);
  pointer-events: none;
}

.card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--signal);
  transition: width var(--dur-mid) var(--ease-out-quart);
}

.card:hover {
  border-color: var(--ink);
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -24px rgba(36, 32, 34, 0.18);
}

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

.card:hover::after {
  width: 100%;
}

/* Card style variants — applied via body[data-cards] */
body[data-cards="outline"] .card {
  background: transparent;
  border: 1.5px solid var(--ink);
}

body[data-cards="outline"] .card:hover {
  background: var(--ink);
  color: var(--paper);
}

body[data-cards="outline"] .card:hover h3,
body[data-cards="outline"] .card:hover p {
  color: var(--paper);
}

body[data-cards="filled"] .card {
  background: var(--surface);
  border-color: transparent;
}

body[data-cards="filled"] .card:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

body[data-cards="filled"] .card:hover h3,
body[data-cards="filled"] .card:hover p {
  color: var(--paper);
}

body[data-cards="filled"] .card:hover .card-icon {
  background: var(--signal);
  color: var(--paper);
}

body[data-cards="tilt"] .card {
  transition: transform var(--dur-mid) var(--ease-spring),
    box-shadow var(--dur-mid) var(--ease-out-quart),
    border-color var(--dur-mid) var(--ease-out-quart);
}

body[data-cards="tilt"] .card:hover {
  transform: perspective(1000px) rotateX(4deg) rotateY(-6deg) translateY(-6px);
}

.card-icon {
  width: 54px;
  height: 54px;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.55rem;
  margin-bottom: 1.4rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
}

.card:hover .card-icon {
  background: var(--signal);
  transform: rotate(-6deg) scale(1.08);
}

.card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.card p {
  color: var(--ink-2);
  font-size: 0.94rem;
  line-height: 1.65;
}

.card-num {
  position: absolute;
  top: 1.25rem;
  right: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}

/* =========================================================
   FOOTER
   ========================================================= */
footer {
  background: var(--ink);
  color: var(--paper);
  padding: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--signal);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 0;
  margin-bottom: 0.75rem;
}

.footer-brand .accent {
  color: var(--signal);
}

.footer-tagline {
  color: rgba(255, 252, 255, 0.65);
  font-size: 0.95rem;
  max-width: 36ch;
}

.footer-col h5 {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 252, 255, 0.45);
  margin-bottom: 1rem;
  font-weight: 600;
}

.footer-col p,
.footer-col a {
  color: rgba(255, 252, 255, 0.85);
  font-size: 0.92rem;
  display: block;
  margin-bottom: 0.5rem;
  transition: color var(--dur-fast);
}

.footer-col a:hover {
  color: var(--signal);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 252, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  color: rgba(255, 252, 255, 0.5);
  font-size: 0.86rem;
}

.footer-bottom a {
  color: rgba(255, 252, 255, 0.5);
}

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

/* =========================================================
   PAGE HEADERS
   ========================================================= */
.page-header {
  padding: clamp(5rem, 9vw, 8rem) 0 clamp(3rem, 6vw, 5rem);
  position: relative;
}

.page-header .container {
  max-width: var(--maxw);
}

.page-header .crumb {
  font-size: 0.82rem;
  color: var(--ink-3);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-header .crumb .signal {
  color: var(--signal);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.02;
  color: var(--ink);
  margin-bottom: 1rem;
  max-width: 16ch;
}

.page-header h1 .accent {
  color: var(--signal);
}

.page-header p {
  color: var(--ink-2);
  font-size: 1.15rem;
  max-width: 56ch;
}

/* =========================================================
   INFO BLOCKS (used in about/contact)
   ========================================================= */
.info-block {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--signal);
  border-radius: var(--radius-md);
  padding: 2rem 2.25rem;
  margin-bottom: 1.5rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
}

.info-block:hover {
  border-color: var(--line);
  border-left-color: var(--signal);
  transform: translateX(4px);
  box-shadow: 0 16px 40px -20px rgba(36, 32, 34, 0.18);
}

.info-block h3 {
  color: var(--ink);
  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.info-block p {
  color: var(--ink-2);
  line-height: 1.8;
  margin-bottom: 0.4rem;
}

.info-block p:last-child {
  margin-bottom: 0;
}

/* Definition list style for company facts */
.fact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.5rem 2rem;
  margin-top: 0.5rem;
}

.fact-list .fact {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--line);
}

.fact-list .fact dt {
  color: var(--ink-3);
  font-size: 0.92rem;
  flex-shrink: 0;
}

.fact-list .fact dd {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.94rem;
  text-align: right;
}

/* =========================================================
   TIMELINE
   ========================================================= */
.timeline {
  position: relative;
  padding-left: 2.5rem;
  margin-top: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--signal), var(--line));
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
  transition: transform var(--dur-mid) var(--ease-out-quart);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.5rem;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--paper);
  border: 3px solid var(--signal);
  border-radius: 50%;
  transition: all var(--dur-mid) var(--ease-spring);
}

.timeline-item:hover::before {
  background: var(--signal);
  transform: scale(1.25);
  box-shadow: 0 0 0 6px var(--signal-soft);
}

.timeline-item:hover {
  transform: translateX(6px);
}

.timeline-date {
  color: var(--signal);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-mono);
  margin-bottom: 0.4rem;
  letter-spacing: 0.04em;
}

.timeline-content h4 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}

.timeline-content p {
  color: var(--ink-2);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* =========================================================
   NEWS
   ========================================================= */
.news-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
  margin-bottom: 1rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 160px 1fr auto;
  gap: 2rem;
  align-items: center;
}

.news-item::after {
  content: "→";
  font-size: 1.5rem;
  color: var(--ink-3);
  transition: all var(--dur-mid) var(--ease-out-quart);
}

.news-item:hover {
  border-color: var(--ink);
  transform: translateX(6px);
  box-shadow: -6px 12px 32px -16px rgba(36, 32, 34, 0.2);
}

.news-item:hover::after {
  color: var(--signal);
  transform: translateX(6px);
}

.news-date {
  color: var(--signal);
  font-size: 0.86rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.news-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
}

.news-summary {
  color: var(--ink-2);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* News item on homepage (card style) */
.news-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
  position: relative;
  overflow: hidden;
}

.news-card:hover {
  border-color: var(--ink);
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -24px rgba(36, 32, 34, 0.18);
}

.news-card .news-date {
  margin-bottom: 1rem;
  display: block;
}

.news-card .news-title {
  margin-bottom: 0.6rem;
}

.news-card::after {
  content: "→";
  position: absolute;
  top: 1.75rem;
  right: 1.75rem;
  font-size: 1.2rem;
  color: var(--ink-3);
  transition: all var(--dur-mid) var(--ease-out-quart);
}

.news-card:hover::after {
  color: var(--signal);
  transform: translate(4px, -4px);
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 3rem;
}

.contact-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
  position: relative;
  overflow: hidden;
}

.contact-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: var(--ink);
  transition: height var(--dur-mid) var(--ease-out-quart);
  z-index: 0;
}

.contact-item:hover::before {
  height: 100%;
}

.contact-item:hover h4,
.contact-item:hover p {
  color: var(--paper);
  position: relative;
  z-index: 1;
}

.contact-item:hover .contact-icon {
  background: var(--signal);
  color: var(--paper);
  position: relative;
  z-index: 1;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 1.2rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
  position: relative;
  z-index: 1;
}

.contact-item h4 {
  color: var(--ink);
  margin-bottom: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  position: relative;
  z-index: 1;
  transition: color var(--dur-mid);
}

.contact-item p {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.98rem;
  position: relative;
  z-index: 1;
  transition: color var(--dur-mid);
}

/* =========================================================
   PRODUCTS
   ========================================================= */
.product-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all var(--dur-mid) var(--ease-out-quart);
}

.product-item::before {
  content: attr(data-num);
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}

.product-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur-mid) var(--ease-out-quart);
}

.product-item:hover {
  border-color: var(--ink);
  box-shadow: 0 24px 48px -24px rgba(36, 32, 34, 0.18);
}

.product-item:hover::after {
  transform: scaleY(1);
}

.product-item h3 {
  color: var(--ink);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding-right: 4rem;
}

.product-item h3 .ico {
  width: 44px;
  height: 44px;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all var(--dur-mid) var(--ease-out-quart);
}

.product-item:hover h3 .ico {
  background: var(--signal);
  transform: rotate(-6deg);
}

.product-item p {
  color: var(--ink-2);
  line-height: 1.8;
  font-size: 0.98rem;
}

.product-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.product-tag {
  font-size: 0.78rem;
  background: var(--surface);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 500;
}

.product-tag.signal {
  background: var(--signal-soft);
  color: var(--signal);
}

.product-coming {
  background: var(--paper);
  border: 1.5px dashed var(--ink-3);
}

.product-coming .card-icon {
  background: var(--signal-soft);
  color: var(--signal);
}

/* =========================================================
   FLAGSHIP PRODUCT SHOWCASE (Navigator / BP Creator)
   ========================================================= */
.flagship {
  display: flex;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
  margin-bottom: 4rem;
}

.flagship + .flagship {
  margin-top: 1rem;
}

.flagship-reverse {
  flex-direction: row-reverse;
}

.flagship-media {
  flex: 1.15;
  min-width: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px -28px rgba(36, 32, 34, 0.22);
  background: var(--surface);
  transition: transform var(--dur-mid) var(--ease-out-quart),
    box-shadow var(--dur-mid) var(--ease-out-quart);
}

.flagship-media:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 68px -28px rgba(36, 32, 34, 0.3);
}

.flagship-media img {
  display: block;
  width: 100%;
  height: auto;
}

.flagship-body {
  flex: 1;
  min-width: 0;
}

.flagship-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--signal);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.flagship-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--signal);
}

.flagship-body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.6vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: var(--ink);
}

.flagship-lead {
  color: var(--ink-2);
  font-size: 1.02rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.flagship-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.75rem;
  display: grid;
  gap: 0.65rem;
}

.flagship-features li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--ink-2);
  font-size: 0.95rem;
  line-height: 1.65;
}

.flagship-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 7px;
  height: 7px;
  border-radius: 1.5px;
  background: var(--signal);
  transform: rotate(45deg);
}

.flagship-features li strong {
  color: var(--ink);
  font-weight: 600;
}

.flagship-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-3);
  margin-top: 0.5rem;
}

@media (max-width: 860px) {
  .flagship,
  .flagship-reverse {
    flex-direction: column;
    gap: 1.75rem;
    margin-bottom: 3rem;
  }
}

/* =========================================================
   MARQUEE / FEATURE BAND
   ========================================================= */
.marquee {
  background: var(--ink);
  color: var(--paper);
  padding: 1.5rem 0;
  overflow: hidden;
  position: relative;
}

.marquee-track {
  display: flex;
  gap: 4rem;
  white-space: nowrap;
  animation: marquee-scroll 28s linear infinite;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 4rem;
}

.marquee-track span::after {
  content: "✦";
  color: var(--signal);
  font-size: 1.2rem;
}

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

/* =========================================================
   REVEAL / SCROLL ANIMATIONS
   Activated when [data-animate] elements get .is-visible
   ========================================================= */
[data-animate] {
  opacity: 0;
  transition: opacity 0.9s var(--ease-out-quart),
    transform 0.9s var(--ease-out-quart);
  transition-delay: var(--delay, 0ms);
  will-change: opacity, transform;
}

[data-animate="fade-up"] { transform: translateY(36px); }
[data-animate="fade-down"] { transform: translateY(-36px); }
[data-animate="fade-left"] { transform: translateX(36px); }
[data-animate="fade-right"] { transform: translateX(-36px); }
[data-animate="zoom-in"] { transform: scale(0.92); }
[data-animate="zoom-out"] { transform: scale(1.08); }
[data-animate="blur-in"] { filter: blur(14px); }
[data-animate="fade"] { /* opacity only */ }

[data-animate].is-visible {
  opacity: 1;
  transform: translateX(0) translateY(0) scale(1);
  filter: blur(0);
}

/* Animation intensity variants via body[data-motion] */
body[data-motion="subtle"] [data-animate] {
  transition-duration: 0.5s;
}

body[data-motion="strong"] [data-animate] {
  transition-duration: 1.2s;
}

body[data-motion="off"] [data-animate] {
  opacity: 1 !important;
  transform: none !important;
  filter: none !important;
  transition: none !important;
}

/* Stagger helpers */
.stagger > * { --delay: 0ms; }
.stagger > *:nth-child(1) { --delay: 0ms; }
.stagger > *:nth-child(2) { --delay: 90ms; }
.stagger > *:nth-child(3) { --delay: 180ms; }
.stagger > *:nth-child(4) { --delay: 270ms; }
.stagger > *:nth-child(5) { --delay: 360ms; }
.stagger > *:nth-child(6) { --delay: 450ms; }
.stagger > *:nth-child(7) { --delay: 540ms; }
.stagger > *:nth-child(8) { --delay: 630ms; }

/* Hero text mask-reveal */
.reveal-line {
  display: block;
  overflow: hidden;
}

.reveal-line > span {
  display: inline-block;
  transform: translateY(110%);
  animation: line-up 0.95s var(--ease-out-quart) forwards;
  animation-delay: var(--delay, 0ms);
}

@keyframes line-up {
  to { transform: translateY(0); }
}

/* Cursor follow blob (subtle) */
.cursor-blob {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, var(--signal-mid), transparent 65%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: multiply;
  transform: translate(-50%, -50%);
  transition: opacity 0.4s;
  opacity: 0;
  filter: blur(20px);
}

body[data-cursor="on"] .cursor-blob {
  opacity: 0.6;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 880px) {
  .nav-links {
    gap: 0.15rem;
  }
  .nav-links a {
    padding: 0.45rem 0.7rem;
    font-size: 0.85rem;
  }
  .nav-cta { display: none !important; }
  .hero-deco { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .news-item {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .news-item::after { display: none; }
  .product-item { padding: 1.75rem; }
  .product-item h3 { padding-right: 0; }
}

@media (max-width: 600px) {
  .nav-links li:not(.nav-cta-li) a { font-size: 0.8rem; padding: 0.4rem 0.55rem; }
  .hero-meta { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

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