/* ============================================================
   伴侣1代 · 企业官网
   纯 HTML + CSS + JS | 深蓝科技风
   ============================================================ */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color */
  --bg: #060912;
  --bg-2: #0b1220;
  --bg-3: #0f1a2e;
  --primary: #00d4ff;
  --primary-2: #3b82f6;
  --cyan: #22d3ee;
  --warm: #ff6b6b;
  --text: #f8fafc;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hi: rgba(0, 212, 255, 0.5);
  --nav-bg: rgba(6, 9, 18, 0.7);

  /* Gradient */
  --grad-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 100%);
  --grad-warm: linear-gradient(135deg, #ff8a8a 0%, #ff6b6b 100%);
  --grad-text: linear-gradient(135deg, #7ae7ff 0%, #00d4ff 40%, #3b82f6 100%);

  /* Shadow */
  --shadow-card: 0 0 40px rgba(0, 212, 255, 0.15);
  --shadow-btn: 0 0 30px rgba(0, 212, 255, 0.4);

  /* Shape */
  --r-card: 16px;
  --r-btn: 8px;
  --r-sm: 6px;

  /* Layout */
  --w-max: 1200px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Font */
  --font-sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Space Grotesk", "Inter", "Noto Sans SC", sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

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

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

::selection {
  background: rgba(0, 212, 255, 0.3);
  color: #fff;
}

/* ---------- Background Layers ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 80%);
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  z-index: -2;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
  pointer-events: none;
}

.bg-glow--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.18), transparent 70%);
  top: -200px;
  left: -150px;
}

.bg-glow--2 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.14), transparent 70%);
  top: 40%;
  right: -200px;
}

.bg-glow--3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 107, 107, 0.08), transparent 70%);
  bottom: 10%;
  left: 30%;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  position: relative;
  padding: 140px 0;
}

.section--alt {
  background: linear-gradient(180deg, transparent, rgba(11, 18, 32, 0.6), transparent);
}

.section__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 72px;
}

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--primary);
  margin-bottom: 20px;
  font-weight: 500;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section__desc {
  font-size: 17px;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--r-btn);
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background: var(--grad-primary);
  color: #00131f;
  font-weight: 600;
  box-shadow: var(--shadow-btn);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.6);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--card-border-hi);
  background: rgba(0, 212, 255, 0.08);
  transform: translateY(-2px);
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--primary);
}

.brand__mark {
  display: flex;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  align-items: center;
  justify-content: center;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}

.brand__sub {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--text-3);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  position: relative;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.3s var(--ease);
  border-radius: 6px;
}

.nav__link:hover {
  color: var(--text);
}

.nav__link.active {
  color: var(--primary);
}

.nav__link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

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

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  will-change: transform;
}

.hero__orb--a {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.25), transparent 70%);
  top: 10%;
  left: 5%;
}

.hero__orb--b {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2), transparent 70%);
  bottom: 0;
  right: 5%;
}

.hero__orb--c {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 107, 107, 0.12), transparent 70%);
  top: 40%;
  left: 40%;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid rgba(0, 212, 255, 0.3);
  background: rgba(0, 212, 255, 0.06);
  border-radius: 100px;
  font-size: 13px;
  color: var(--primary);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.hero__tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero__title-sep {
  color: var(--primary);
  margin: 0 0.1em;
}

.hero__subtitle {
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 580px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  margin-bottom: 88px;
  flex-wrap: wrap;
}

/* Hero Stats */
.hero__stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.stat {
  text-align: left;
}

.stat__value {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 10px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat--warm .stat__value {
  background: linear-gradient(135deg, #ffb8b8, #ff6b6b);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat__label {
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.05em;
}

/* Scroll Arrow */
.hero__arrow {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-3);
  animation: float 2.5s ease-in-out infinite;
  z-index: 2;
}

.hero__arrow-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--primary));
}

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

/* ---------- Tech Cards ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.tech-card {
  position: relative;
  padding: 36px 32px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-card);
  transition: all 0.4s var(--ease);
  overflow: hidden;
}

.tech-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-card);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, rgba(0, 212, 255, 0.4), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}

.tech-card:hover {
  transform: translateY(-4px);
  background: rgba(0, 212, 255, 0.04);
  border-color: var(--card-border-hi);
  box-shadow: var(--shadow-card);
}

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

.tech-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.25);
  color: var(--primary);
  margin-bottom: 24px;
  transition: all 0.4s var(--ease);
}

.tech-card__icon--warm {
  background: rgba(255, 107, 107, 0.1);
  border-color: rgba(255, 107, 107, 0.25);
  color: var(--warm);
}

.tech-card:hover .tech-card__icon {
  transform: scale(1.08);
}

.tech-card__title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.tech-card__code {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--text-3);
  margin-bottom: 16px;
}

.tech-card__desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 24px;
}

.tech-card__specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.tech-card__specs li {
  font-size: 12px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tech-card__specs span {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--primary);
  font-size: 13px;
}

.tech-card__icon--warm ~ .tech-card__specs span {
  color: var(--warm);
}

/* ---------- Tabs ---------- */
.tabs {
  position: relative;
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  margin: 0 auto 56px;
  left: 50%;
  transform: translateX(-50%);
}

.tab {
  position: relative;
  padding: 12px 32px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 8px;
  transition: all 0.3s var(--ease);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1;
}

.tab__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  transition: all 0.3s var(--ease);
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  color: var(--text);
  background: rgba(0, 212, 255, 0.1);
}

.tab.active .tab__dot {
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

.tab-panel {
  display: none;
  animation: fadeIn 0.5s var(--ease);
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Product ---------- */
.product {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.product__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  min-height: 500px;
}

.silhouette {
  position: relative;
  width: 320px;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.silhouette__core {
  position: absolute;
  width: 140px;
  height: 300px;
  border-radius: 70px 70px 50px 50px;
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.15), rgba(59, 130, 246, 0.05));
  border: 1px solid rgba(0, 212, 255, 0.3);
  box-shadow:
    0 0 80px rgba(0, 212, 255, 0.2),
    inset 0 0 60px rgba(0, 212, 255, 0.08);
  backdrop-filter: blur(10px);
}

.silhouette--female .silhouette__core {
  width: 120px;
  height: 300px;
  border-radius: 60px 60px 50px 50px;
  background: linear-gradient(180deg, rgba(255, 107, 107, 0.12), rgba(0, 212, 255, 0.05));
  border-color: rgba(255, 107, 107, 0.25);
  box-shadow:
    0 0 80px rgba(255, 107, 107, 0.15),
    inset 0 0 60px rgba(255, 107, 107, 0.06);
}

.silhouette__ring {
  position: absolute;
  width: 280px;
  height: 280px;
  border: 1px dashed rgba(0, 212, 255, 0.2);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}

.silhouette--female .silhouette__ring {
  border-color: rgba(255, 107, 107, 0.2);
}

.silhouette__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.06) 1px, transparent 1px);
  background-size: 20px 20px;
  border-radius: 24px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
}

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

.product__name {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.product__tagline {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 40px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.feature-groups {
  display: grid;
  gap: 28px;
}

.feature-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 14px;
}

.feature-group ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.feature-group li {
  padding: 8px 18px;
  font-size: 13px;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  transition: all 0.3s var(--ease);
}

.feature-group li:hover {
  border-color: var(--card-border-hi);
  color: var(--text);
  background: rgba(0, 212, 255, 0.05);
}

/* ---------- Specs Table ---------- */
.specs {
  margin-top: 96px;
}

.specs__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 36px;
  color: var(--text);
}

.specs__table-wrap {
  border: 1px solid var(--card-border);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--card-bg);
}

.specs__table {
  width: 100%;
  border-collapse: collapse;
}

.specs__table th,
.specs__table td {
  padding: 20px 28px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.specs__table th {
  font-weight: 500;
  color: var(--text-3);
  width: 18%;
  background: rgba(255, 255, 255, 0.02);
}

.specs__table td {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 500;
  width: 32%;
}

.specs__table tr:last-child th,
.specs__table tr:last-child td {
  border-bottom: none;
}

.specs__warm {
  color: var(--warm) !important;
}

/* ---------- Scenes ---------- */
.scenes-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 8px 0 32px;
  margin: 0 calc(50% - 50vw);
  padding-left: calc(50vw - 600px);
  padding-right: 32px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 212, 255, 0.3) transparent;
}

.scenes-scroll::-webkit-scrollbar {
  height: 6px;
}

.scenes-scroll::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 3px;
}

.scenes-scroll::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.3);
  border-radius: 3px;
}

.scenes-track {
  display: flex;
  gap: 24px;
  padding-right: 32px;
}

.scene-card {
  flex: 0 0 340px;
  scroll-snap-align: start;
  padding: 36px 32px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-card);
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

.scene-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-border-hi);
  box-shadow: var(--shadow-card);
}

.scene-card--warm:hover {
  border-color: rgba(255, 107, 107, 0.5);
  box-shadow: 0 0 40px rgba(255, 107, 107, 0.15);
}

.scene-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.25);
  color: var(--primary);
  margin-bottom: 24px;
}

.scene-card--warm .scene-card__icon {
  background: rgba(255, 107, 107, 0.1);
  border-color: rgba(255, 107, 107, 0.25);
  color: var(--warm);
}

.scene-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 14px;
}

.scene-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 24px;
}

.scene-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.scene-card__tags li {
  padding: 5px 14px;
  font-size: 12px;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 100px;
}

/* ---------- About ---------- */
.about__main {
  max-width: 820px;
  margin: 0 auto 72px;
  text-align: center;
}

.about__lead {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.about__body {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about__body strong {
  color: var(--text);
  font-weight: 600;
}

.about__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto 80px;
}

.about-card {
  padding: 40px 36px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-card);
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease);
}

.about-card:hover {
  border-color: var(--card-border-hi);
  transform: translateY(-2px);
}

.about-card__label {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--text-3);
  margin-bottom: 16px;
}

.about-card__value {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 600;
  line-height: 1.5;
}

.about__pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pillar {
  padding: 28px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s var(--ease);
}

.pillar:hover {
  border-top-color: var(--primary);
}

.pillar__num {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  font-weight: 600;
}

.pillar h4 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
}

.pillar p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.8;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 56px 0 40px;
  background: rgba(6, 9, 18, 0.6);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--primary);
}

.footer__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
}

.footer__sub {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-align: left;
}

.footer__links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links a {
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.3s var(--ease);
}

.footer__links a:hover {
  color: var(--primary);
}

.footer__copy {
  font-size: 12px;
  color: var(--text-3);
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer__icp {
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

.footer__icp:hover {
  color: var(--primary);
}

/* ---------- Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
  transition-delay: calc(var(--delay, 0) * 100ms);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .container { padding: 0 28px; }
  .section { padding: 100px 0; }

  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .product { grid-template-columns: 1fr; gap: 48px; }
  .product__visual { min-height: 380px; order: -1; }
  .about__pillars { grid-template-columns: repeat(2, 1fr); }
  .hero__stats { grid-template-columns: repeat(3, 1fr); gap: 32px 24px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 80px 0; }
  .section__head { margin-bottom: 48px; }

  .brand__sub { display: none; }
  .nav { gap: 0; }
  .nav__link { padding: 8px 12px; font-size: 13px; }

  .hero { padding: 100px 0 100px; min-height: auto; }
  .hero__br { display: none; }
  .hero__title-sep { display: none; }
  .hero__title { font-size: clamp(36px, 10vw, 56px); }
  .hero__cta { margin-bottom: 56px; }
  .hero__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 20px;
    padding-top: 32px;
  }
  .hero__arrow { display: none; }

  .tech-grid { grid-template-columns: 1fr; }
  .tech-card { padding: 28px 24px; }

  .tabs { left: 0; transform: none; width: 100%; justify-content: center; }
  .tab { padding: 10px 20px; font-size: 13px; }

  .silhouette { width: 240px; height: 360px; }
  .silhouette__core { width: 110px; height: 230px; }
  .silhouette--female .silhouette__core { width: 95px; height: 230px; }
  .silhouette__ring { width: 220px; height: 220px; }

  .product__name { font-size: 26px; }
  .specs__table th, .specs__table td { padding: 14px 16px; font-size: 13px; }

  .scenes-scroll {
    padding-left: 20px;
    margin: 0 -20px;
  }
  .scene-card { flex: 0 0 290px; padding: 28px 24px; }

  .about__cards { grid-template-columns: 1fr; }
  .about__pillars { grid-template-columns: 1fr; }
  .pillar { padding: 24px 0; }

  .footer__links { gap: 20px; }
}

@media (max-width: 480px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .nav__link { padding: 6px 8px; font-size: 12px; }
  .btn { padding: 12px 24px; font-size: 14px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}