/* ============================================================
   灵栖智能 · Design System v2 "SOTA"
   Dark editorial aesthetic · aurora accents · physics motion
   ============================================================ */

:root, html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #06080c;
  --ink-2: #0b0e14;
  --ink-3: #10141c;
  --line: rgba(235, 240, 248, 0.08);
  --line-2: rgba(235, 240, 248, 0.16);
  --txt: #f2f5fa;
  --txt-2: #a7b0c0;
  --txt-3: #6b7484;
  --cyan: #1eb8a8;
  --violet: #8b7cf6;
  --lime: #c8f169;
  --coral: #ff8f7a;
  --accent: var(--cyan);
  --header-bg: rgba(6, 8, 12, 0.72);
  --mega-bg: rgba(13, 16, 23, 0.88);
  --nav-overlay: rgba(6, 8, 12, 0.94);
  --hero-veil: linear-gradient(180deg, rgba(6, 8, 12, 0.62), rgba(6, 8, 12, 0.32) 45%, var(--ink) 96%);
  --hero-veil-2: radial-gradient(58% 48% at 68% 40%, transparent, rgba(6, 8, 12, 0.55));
  --page-hero-veil: linear-gradient(180deg, rgba(6, 8, 12, 0.7), rgba(6, 8, 12, 0.42) 50%, var(--ink));
  --card-scrim: linear-gradient(transparent, rgba(6, 8, 12, 0.88) 62%);
  --thumb: #232a37;
  --thumb-hover: #35405a;
  --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "SF Pro Display", "DIN Alternate", "Helvetica Neue", var(--font-cn);
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --header-h: 72px;
  --radius: 20px;
  --container: 1240px;
}

html[data-theme="light"] {
  color-scheme: light;
  --ink: #f3f5f8;
  --ink-2: #ffffff;
  --ink-3: #eef1f6;
  --line: rgba(18, 21, 28, 0.08);
  --line-2: rgba(18, 21, 28, 0.14);
  --txt: #12151c;
  --txt-2: #4e5969;
  --txt-3: #86909c;
  --cyan: #0f7d72;
  --violet: #5b4fd6;
  --lime: #6b8f1a;
  --coral: #d45b48;
  --accent: var(--cyan);
  --header-bg: rgba(255, 255, 255, 0.84);
  --mega-bg: rgba(255, 255, 255, 0.96);
  --nav-overlay: rgba(255, 255, 255, 0.96);
  --hero-veil: linear-gradient(180deg, rgba(243, 245, 248, 0.42), rgba(243, 245, 248, 0.18) 45%, var(--ink) 96%);
  --hero-veil-2: radial-gradient(58% 48% at 68% 40%, transparent, rgba(243, 245, 248, 0.55));
  --page-hero-veil: linear-gradient(180deg, rgba(243, 245, 248, 0.55), rgba(243, 245, 248, 0.28) 50%, var(--ink));
  --card-scrim: linear-gradient(transparent, rgba(243, 245, 248, 0.92) 62%);
  --thumb: #c9d0db;
  --thumb-hover: #9aa3b2;
}

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

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

html, body { height: 100%; }

body {
  background: var(--ink);
  color: var(--txt);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: rgba(30, 184, 168, 0.28); color: #fff; }

img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: var(--thumb); border-radius: 6px; border: 2px solid var(--ink); }
::-webkit-scrollbar-thumb:hover { background: var(--thumb-hover); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 clamp(20px, 4vw, 48px); }

/* ---------- cursor aura (fine pointer only) ---------- */
.cursor-aura {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(560px circle at var(--mx, 50%) var(--my, 30%), rgba(30, 184, 168, 0.055), transparent 62%);
  opacity: 0; transition: opacity 0.8s ease;
}
body.has-fine-pointer .cursor-aura { opacity: 1; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  overflow: visible;
  transition: background 0.45s var(--ease-out), border-color 0.45s var(--ease-out), backdrop-filter 0.45s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom-color: var(--line);
}
.site-header__inner {
  height: var(--header-h);
  display: flex; align-items: center; gap: 32px;
  width: 100%; max-width: var(--container);
  margin: 0 auto; padding: 0 clamp(20px, 4vw, 48px);
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 34px; height: 34px; border-radius: 0; background: transparent; }
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__text strong { font-size: 15px; font-weight: 600; letter-spacing: 0.04em; }
.brand__text span { font-size: 10.5px; color: var(--txt-3); letter-spacing: 0.14em; }

.main-nav { display: flex; align-items: center; gap: 6px; margin-left: 12px; }
.main-nav > a,
.main-nav > .nav-drop > button {
  position: relative;
  padding: 9px 15px;
  font-size: 14px;
  color: var(--txt-2);
  border-radius: 999px;
  transition: color 0.3s;
  display: inline-flex; align-items: center; gap: 5px;
}
.main-nav > a:hover,
.main-nav > .nav-drop:hover > button,
.main-nav > a.is-active,
.main-nav > .nav-drop > button.is-active { color: var(--txt); }
.main-nav > a.is-active::after {
  content: ""; position: absolute; left: 50%; bottom: 2px; transform: translateX(-50%);
  width: 4px; height: 4px; border-radius: 50%; background: var(--accent);
}
.nav-drop { position: static; }
.nav-chevron { width: 10px; height: 10px; transition: transform 0.35s var(--ease-out); }
.nav-drop.is-open .nav-chevron { transform: rotate(180deg); }

/* mega panel — product catalog */
.mega {
  position: absolute; top: calc(100% + 8px); left: 50%;
  width: min(1040px, calc(100vw - 40px));
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  background: var(--mega-bg);
  -webkit-backdrop-filter: blur(28px) saturate(1.5);
  backdrop-filter: blur(28px) saturate(1.5);
  border: 1px solid var(--line-2);
  border-radius: 16px;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 32px 80px -16px rgba(0, 0, 0, 0.7);
  opacity: 0; visibility: hidden;
  transform: translate(-50%, 10px) scale(0.985);
  transition: opacity 0.32s var(--ease-out), transform 0.32s var(--ease-out), visibility 0.32s;
  z-index: 60;
}
.nav-drop.is-open .mega { opacity: 1; visibility: visible; transform: translate(-50%, 0) scale(1); }
.mega__side {
  padding: 18px 14px 20px;
  border-right: 1px solid var(--line);
  background: var(--ink-2);
}
.mega__head {
  display: flex; align-items: center; gap: 6px;
  font-size: 16px; font-weight: 650; letter-spacing: -0.02em;
  margin: 0 6px 12px;
}
.mega__head span { color: var(--txt-3); font-weight: 500; }
.mega__search {
  display: flex; align-items: center; gap: 8px;
  height: 36px; margin: 0 0 12px; padding: 0 10px;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--ink-3); color: var(--txt-3);
}
.mega__search svg { width: 14px; height: 14px; flex-shrink: 0; }
.mega__search input {
  flex: 1; min-width: 0; border: 0; outline: 0;
  background: transparent; color: var(--txt); font: inherit; font-size: 13px;
}
.mega__search:focus-within { border-color: var(--accent); }
.mega__cats { display: grid; gap: 2px; }
.mega__cat {
  display: flex; align-items: center;
  width: 100%; height: 36px; padding: 0 12px;
  border-radius: 8px; font-size: 13.5px; color: var(--txt-2); text-align: left;
}
.mega__cat:hover { background: var(--ink-3); color: var(--txt); }
.mega__cat.is-on {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent); font-weight: 600;
}
.mega__main { padding: 22px 28px 26px; min-height: 280px; }
.mega__title { font-size: 16px; font-weight: 650; letter-spacing: -0.02em; margin-bottom: 16px; }
.mega__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px 28px;
}
.mega__item { display: block; padding: 10px 4px 14px 0; }
.mega__name {
  display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 14px; font-weight: 650; color: var(--txt); line-height: 1.35;
}
.mega__item:hover .mega__name { color: var(--accent); }
.mega__badge {
  font-size: 11px; font-weight: 500; font-style: normal;
  padding: 1px 6px; border-radius: 4px;
  background: color-mix(in srgb, var(--violet) 16%, transparent);
  color: var(--violet);
}
.mega__desc {
  display: block; margin-top: 4px;
  font-size: 12.5px; color: var(--txt-3); line-height: 1.5;
}
.mega__empty { font-size: 13px; color: var(--txt-3); padding: 12px 0; }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.header-login {
  font-size: 14px; color: var(--txt-2); padding: 8px 10px;
  transition: color 0.25s;
}
.header-login:hover { color: var(--txt); }
button.header-login { background: none; border: 0; font: inherit; }
.header-theme {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--line-2); color: var(--txt-2);
  display: grid; place-items: center; flex-shrink: 0;
}
.header-theme:hover { color: var(--txt); border-color: var(--txt-3); }
.header-theme svg { width: 16px; height: 16px; }
.header-user { position: relative; }
.header-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: #052a22; font-weight: 650; font-size: 14px;
  display: grid; place-items: center; border: 0;
}
html[data-theme="light"] .header-avatar { color: #fff; }
.header-user-menu {
  display: none; position: absolute; right: 0; top: calc(100% + 10px); z-index: 80;
  min-width: 176px; padding: 8px;
  background: var(--mega-bg); border: 1px solid var(--line-2);
  border-radius: 14px; box-shadow: 0 18px 40px -16px rgba(0, 0, 0, 0.45);
}
.header-user.is-open .header-user-menu { display: grid; gap: 2px; }
.header-user-menu a, .header-user-menu button {
  display: block; width: 100%; text-align: left;
  padding: 9px 12px; border-radius: 10px; font-size: 13.5px; color: var(--txt-2);
  background: none; border: 0; font: inherit; cursor: pointer;
}
.header-user-menu a:hover, .header-user-menu button:hover { background: var(--ink-3); color: var(--txt); }

/* buttons */
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px;
  font-size: 14.5px; font-weight: 500; letter-spacing: 0.02em;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  color: var(--txt);
  transition: transform 0.35s var(--ease-spring), border-color 0.3s, background 0.3s, box-shadow 0.35s, color 0.3s;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); border-color: rgba(235, 240, 248, 0.34); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn--primary {
  background: var(--txt); color: var(--ink); border-color: var(--txt);
  box-shadow: 0 8px 28px -8px rgba(255, 255, 255, 0.25);
}
html[data-theme="light"] .btn--primary {
  box-shadow: 0 8px 28px -8px rgba(18, 21, 28, 0.22);
}
.btn--primary:hover { box-shadow: 0 12px 36px -8px rgba(255, 255, 255, 0.34); border-color: var(--txt); }
.btn--accent { background: var(--accent); border-color: var(--accent); color: #052a22; }
.btn--accent:hover { box-shadow: 0 12px 36px -8px color-mix(in srgb, var(--accent) 45%, transparent); }
.btn--sm { padding: 8px 18px; font-size: 13px; }
.btn .btn-arrow { display: inline-block; transition: transform 0.35s var(--ease-out); }
.btn:hover .btn-arrow { transform: translateX(4px); }
/* sheen sweep */
.btn--primary::before, .btn--accent::before {
  content: ""; position: absolute; top: 0; left: -80%;
  width: 55%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-22deg);
  transition: left 0.7s var(--ease-out);
}
.btn--primary:hover::before, .btn--accent:hover::before { left: 130%; }

/* mobile nav */
.nav-toggle {
  display: none;
  width: 40px; height: 40px; border-radius: 12px;
  border: 1px solid var(--line-2);
  position: relative;
}
.nav-toggle span {
  position: absolute; left: 11px; right: 11px; height: 1.6px;
  background: var(--txt); border-radius: 2px;
  transition: transform 0.4s var(--ease-out), top 0.4s var(--ease-out), opacity 0.3s;
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 24px; }
body.nav-open .nav-toggle span:nth-child(1) { top: 19px; transform: rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 90;
  background: var(--nav-overlay);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  padding: calc(var(--header-h) + 24px) 28px 40px;
  opacity: 0; visibility: hidden; transition: opacity 0.4s var(--ease-out), visibility 0.4s;
  overflow-y: auto;
}
body.nav-open .mobile-nav { opacity: 1; visibility: visible; }
.mobile-nav a {
  display: block; padding: 16px 4px;
  font-size: 20px; font-weight: 500;
  border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), color 0.25s;
}
.mobile-nav a:hover { color: var(--accent); }
.mobile-nav button {
  display: block; width: 100%; padding: 16px 4px; text-align: left;
  font-size: 20px; font-weight: 500; font-family: inherit;
  color: inherit; background: none; border: 0; cursor: pointer;
  border-bottom: 1px solid var(--line);
}
.mobile-nav button:hover { color: var(--accent); }
body.nav-open .mobile-nav a { opacity: 1; transform: none; }
.mobile-nav a:nth-child(1) { transition-delay: 0.06s; }
.mobile-nav a:nth-child(2) { transition-delay: 0.11s; }
.mobile-nav a:nth-child(3) { transition-delay: 0.16s; }
.mobile-nav a:nth-child(4) { transition-delay: 0.21s; }
.mobile-nav a:nth-child(5) { transition-delay: 0.26s; }
.mobile-nav a:nth-child(6) { transition-delay: 0.31s; }

/* ============================================================
   Shared section atoms
   ============================================================ */
.section { position: relative; padding: clamp(88px, 11vw, 150px) 0; }
.section--tight { padding: clamp(60px, 7vw, 96px) 0; }
.section--panel { background: var(--ink-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-head { max-width: 720px; margin-bottom: clamp(44px, 6vw, 76px); }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 18px;
}
.sec-tag::before { content: ""; width: 22px; height: 1px; background: var(--accent); }
.sec-head--center .sec-tag::after { content: ""; width: 22px; height: 1px; background: var(--accent); }
.sec-title {
  font-size: clamp(28px, 4.4vw, 48px);
  font-weight: 600; line-height: 1.22; letter-spacing: -0.015em;
}
.sec-sub { margin-top: 16px; font-size: clamp(15px, 1.4vw, 17px); color: var(--txt-2); }

.hairline-top { border-top: 1px solid var(--line); }

/* reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--rd, 0s);
  will-change: opacity, transform;
}
[data-reveal].is-inview { opacity: 1; transform: none; }

/* marquee */
.marquee { overflow: hidden; -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; gap: 0; width: max-content; animation: marquee 30s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* pills */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 13px; font-size: 12px; font-weight: 500; letter-spacing: 0.05em;
  border-radius: 999px; border: 1px solid var(--line-2); color: var(--txt-2);
  background: rgba(255, 255, 255, 0.03);
}
.pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.pill--live i { background: #58e88c; box-shadow: 0 0 10px #58e88c; animation: pulse-dot 2.2s infinite; }
.pill--beta i { background: var(--lime); }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* tilt card */
[data-tilt] { transform-style: preserve-3d; }

/* ============================================================
   HERO (home & product pages)
   ============================================================ */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 90px;
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.5;
  transform: scale(1.08);
  animation: hero-zoom 14s var(--ease-out) forwards;
}
@keyframes hero-zoom { to { transform: scale(1); } }
.hero__media::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: var(--hero-veil);
}
.hero__media::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: var(--hero-veil-2);
}
.hero__grid-overlay {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(rgba(235, 240, 248, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(235, 240, 248, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(70% 60% at 50% 45%, #000, transparent);
  mask-image: radial-gradient(70% 60% at 50% 45%, #000, transparent);
}
.hero__glow {
  position: absolute; z-index: 1; border-radius: 50%;
  filter: blur(110px); pointer-events: none; opacity: 0.55;
}
.hero__glow--a { width: 520px; height: 520px; right: -120px; top: 6%; background: rgba(30, 184, 168, 0.16); animation: float-slow 11s ease-in-out infinite; }
.hero__glow--b { width: 460px; height: 460px; left: -140px; bottom: 4%; background: rgba(139, 124, 246, 0.14); animation: float-slow 13s ease-in-out infinite reverse; }
@keyframes float-slow { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(24px, -30px); } }

.hero__inner { position: relative; z-index: 2; width: 100%; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px; margin-bottom: 30px;
  font-size: 12.5px; letter-spacing: 0.18em; color: var(--txt-2);
  border: 1px solid var(--line-2); border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.hero__eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse-dot 2.4s infinite; }
.hero__title {
  font-size: clamp(46px, 8.6vw, 104px);
  font-weight: 650; line-height: 1.08; letter-spacing: -0.03em;
  max-width: 14ch;
}
.hero__title .grad-text {
  background: linear-gradient(100deg, var(--cyan), var(--violet) 55%, var(--lime));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
/* per-char entrance */
.hero__title .ch { display: inline-block; opacity: 0; transform: translateY(0.55em) rotate(2deg); animation: ch-in 0.9s var(--ease-out) forwards; animation-delay: calc(var(--i) * 0.045s + 0.15s); }
@keyframes ch-in { to { opacity: 1; transform: none; } }
.hero__sub {
  margin-top: 26px; max-width: 560px;
  font-size: clamp(16px, 1.7vw, 19px); color: var(--txt-2);
  opacity: 0; animation: fade-up 1s var(--ease-out) 0.7s forwards;
}
.hero__cta {
  margin-top: 42px; display: flex; gap: 14px; flex-wrap: wrap;
  opacity: 0; animation: fade-up 1s var(--ease-out) 0.95s forwards;
}
.hero__meta {
  margin-top: 56px; display: flex; gap: clamp(24px, 4vw, 56px); flex-wrap: wrap;
  opacity: 0; animation: fade-up 1s var(--ease-out) 1.2s forwards;
}
.hero__meta-item { display: flex; flex-direction: column; gap: 4px; }
.hero__meta-item strong { font-family: var(--font-num); font-size: clamp(22px, 2.6vw, 30px); font-weight: 650; letter-spacing: -0.01em; }
.hero__meta-item strong[data-count] { font-size: clamp(34px, 4.2vw, 48px); line-height: 1; letter-spacing: -0.03em; }
.hero__meta-item > span { font-size: 12.5px; color: var(--txt-3); letter-spacing: 0.08em; }
@keyframes fade-up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

.hero__scroll {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.3em; color: var(--txt-3); text-transform: uppercase;
}
.hero__scroll::after {
  content: ""; width: 1px; height: 44px;
  background: linear-gradient(var(--txt-3), transparent);
  animation: scroll-line 2.2s var(--ease-out) infinite;
  transform-origin: top;
}
@keyframes scroll-line { 0% { transform: scaleY(0); } 45% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ============================================================
   Home · brand statement + counters
   ============================================================ */
.statement { font-size: clamp(26px, 3.8vw, 44px); font-weight: 550; line-height: 1.4; letter-spacing: -0.01em; max-width: 22ch; }
.statement em { font-style: normal; color: var(--accent); }

.counters { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.counter { background: var(--ink-2); padding: clamp(28px, 3.4vw, 46px); transition: background 0.4s; }
.counter:hover { background: var(--ink-3); }
.counter strong { display: block; font-family: var(--font-num); font-size: clamp(36px, 4.6vw, 56px); font-weight: 650; letter-spacing: -0.02em; line-height: 1.1; }
.counter strong small { font-size: 0.5em; color: var(--accent); margin-left: 2px; }
.counter > span { display: block; margin-top: 8px; font-size: 13.5px; color: var(--txt-3); }

/* ============================================================
   Home · products
   ============================================================ */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-card {
  position: relative; display: flex; flex-direction: column;
  border-radius: var(--radius); overflow: hidden;
  background: var(--ink-2); border: 1px solid var(--line);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, box-shadow 0.5s;
}
.prod-card:hover { transform: translateY(-8px); border-color: var(--line-2); box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.65); }
.prod-card__img { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.prod-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease-out); }
.prod-card:hover .prod-card__img img { transform: scale(1.07); }
.prod-card__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, var(--ink-2)); }
.prod-card__body { position: relative; padding: 24px 26px 28px; margin-top: -44px; z-index: 1; flex: 1; display: flex; flex-direction: column; }
.prod-card__body h3 { font-size: 24px; font-weight: 600; margin: 12px 0 6px; letter-spacing: -0.01em; }
.prod-card__body > p { font-size: 14.5px; color: var(--txt-2); flex: 1; }
.prod-card__foot { margin-top: 20px; display: flex; align-items: center; justify-content: space-between; }
.prod-card__link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--accent); }
.prod-card__link i { font-style: normal; transition: transform 0.35s var(--ease-out); }
.prod-card:hover .prod-card__link i { transform: translateX(5px); }
.prod-card__glow {
  position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0;
  background: radial-gradient(420px circle at var(--gx, 50%) var(--gy, 0%), rgba(30, 184, 168, 0.09), transparent 65%);
  transition: opacity 0.5s;
}
.prod-card:hover .prod-card__glow { opacity: 1; }

/* ============================================================
   Carousel (tech / capability peek)
   ============================================================ */
.carousel { position: relative; }
.carousel__viewport { overflow: hidden; border-radius: var(--radius); }
.carousel__track { display: flex; transition: transform 0.75s var(--ease-out); }
.carousel__slide {
  position: relative; flex: 0 0 100%; min-width: 0;
  border-radius: var(--radius); overflow: hidden;
  background: var(--ink-2); border: 1px solid var(--line);
}
.carousel__slide img { width: 100%; aspect-ratio: 21 / 9; object-fit: cover; }
.carousel__slide-body {
  position: absolute; left: 0; right: 0; bottom: 0; padding: clamp(22px, 3.4vw, 40px);
  background: var(--card-scrim);
}
.carousel__slide-body h3 { font-size: clamp(20px, 2.4vw, 28px); font-weight: 600; margin-bottom: 8px; }
.carousel__slide-body p { max-width: 560px; font-size: 14.5px; color: var(--txt-2); }
.carousel__nav {
  position: absolute; top: 38%; z-index: 3;
  width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid var(--line-2);
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  font-size: 22px; line-height: 1; color: var(--txt);
  display: grid; place-items: center;
  transition: background 0.3s, border-color 0.3s, transform 0.35s var(--ease-spring), opacity 0.3s;
}
.carousel__nav:hover { background: rgba(30, 184, 168, 0.14); border-color: var(--accent); transform: scale(1.08); }
.carousel__nav--prev { left: 20px; }
.carousel__nav--next { right: 20px; }
.carousel__dots { display: flex; justify-content: center; gap: 10px; margin-top: 26px; }
.carousel__dot {
  width: 26px; height: 4px; border-radius: 3px;
  background: var(--line-2);
  transition: background 0.35s, width 0.35s var(--ease-out);
}
.carousel__dot.is-active { background: var(--accent); width: 44px; }

/* ============================================================
   Feature rows (alternating media / copy)
   ============================================================ */
.feat-row {
  display: grid; grid-template-columns: 1.08fr 1fr; gap: clamp(36px, 6vw, 90px);
  align-items: center; padding: clamp(40px, 5vw, 72px) 0;
}
.feat-row + .feat-row { border-top: 1px solid var(--line); }
.feat-row--reverse .feat-row__media { order: 2; }
.feat-row__media {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7);
}
.feat-row__media img { width: 100%; aspect-ratio: 16 / 10.5; object-fit: cover; transition: transform 1s var(--ease-out); }
.feat-row__media:hover img { transform: scale(1.04); }
.feat-row__idx { font-family: var(--font-mono); font-size: 13px; color: var(--accent); letter-spacing: 0.16em; margin-bottom: 16px; display: block; }
.feat-row__copy h3 { font-size: clamp(24px, 3vw, 34px); font-weight: 600; letter-spacing: -0.01em; margin-bottom: 14px; }
.feat-row__copy p { color: var(--txt-2); font-size: 15.5px; }

/* ============================================================
   Spec / value grids
   ============================================================ */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.spec-grid--three { grid-template-columns: repeat(3, 1fr); }
.spec-card {
  position: relative; overflow: hidden;
  padding: clamp(26px, 3vw, 40px);
  border-radius: var(--radius);
  background: var(--ink-2); border: 1px solid var(--line);
  transition: transform 0.45s var(--ease-out), border-color 0.4s, background 0.4s;
}
.spec-card:hover { transform: translateY(-5px); border-color: var(--line-2); background: var(--ink-3); }
.spec-card strong { display: block; font-family: var(--font-num); font-size: clamp(24px, 2.6vw, 34px); font-weight: 650; letter-spacing: -0.015em; margin-bottom: 10px; }
.spec-card strong em { font-style: normal; color: var(--accent); }
.spec-card p, .spec-card span { font-size: 14px; color: var(--txt-2); }
.spec-card::after {
  content: ""; position: absolute; top: 0; left: 24px; right: 24px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity 0.4s;
}
.spec-card:hover::after { opacity: 0.8; }

/* ============================================================
   Steps timeline
   ============================================================ */
.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.steps::before {
  content: ""; position: absolute; top: 26px; left: 5%; right: 5%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-2) 12%, var(--line-2) 88%, transparent);
}
.step { position: relative; padding-top: 60px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 0; left: 0;
  width: 52px; height: 52px; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 13px; color: var(--accent);
  background: var(--ink); border: 1px solid var(--line-2); border-radius: 50%;
  transition: background 0.35s, color 0.35s, border-color 0.35s, box-shadow 0.35s;
}
.step:hover::before { background: var(--accent); color: #052a22; border-color: var(--accent); box-shadow: 0 0 24px rgba(30, 184, 168, 0.35); }
.step h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--txt-3); }

/* ============================================================
   Pricing
   ============================================================ */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.price-card {
  position: relative; display: flex; flex-direction: column;
  padding: clamp(30px, 3.4vw, 44px);
  border-radius: var(--radius);
  background: var(--ink-2); border: 1px solid var(--line);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, box-shadow 0.5s;
}
.price-card:hover { transform: translateY(-8px); border-color: var(--line-2); box-shadow: 0 26px 60px -20px rgba(0, 0, 0, 0.6); }
.price-card--featured { border-color: rgba(30, 184, 168, 0.4); background: linear-gradient(170deg, rgba(30, 184, 168, 0.07), var(--ink-2) 42%); }
.price-card__badge {
  position: absolute; top: 20px; right: 20px;
  font-size: 11px; letter-spacing: 0.14em; padding: 4px 12px;
  color: #052a22; background: var(--accent); border-radius: 999px; font-weight: 600;
}
.price-card h3 { font-size: 15px; font-weight: 500; color: var(--txt-2); letter-spacing: 0.06em; }
.price-card__price { margin: 18px 0 24px; font-family: var(--font-num); font-size: clamp(34px, 3.6vw, 46px); font-weight: 650; letter-spacing: -0.02em; line-height: 1.05; }
.price-card__price small { font-size: 0.36em; font-weight: 400; color: var(--txt-3); letter-spacing: 0; }
.price-card ul { flex: 1; display: flex; flex-direction: column; gap: 12px; margin-bottom: 30px; }
.price-card li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--txt-2); }
.price-card li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 14px; height: 8px;
  border-left: 1.6px solid var(--accent); border-bottom: 1.6px solid var(--accent);
  transform: rotate(-45deg) translateY(-2px);
}

/* ============================================================
   CTA band
   ============================================================ */
.cta-band { position: relative; overflow: hidden; border-radius: calc(var(--radius) + 8px); border: 1px solid var(--line-2); padding: clamp(56px, 8vw, 110px) clamp(28px, 6vw, 90px); text-align: center; background: var(--ink-2); }
.cta-band::before {
  content: ""; position: absolute; inset: -40%;
  background:
    radial-gradient(38% 46% at 30% 40%, rgba(30, 184, 168, 0.13), transparent 70%),
    radial-gradient(34% 42% at 72% 62%, rgba(139, 124, 246, 0.12), transparent 70%);
  animation: aurora 12s ease-in-out infinite alternate;
}
@keyframes aurora { to { transform: rotate(8deg) scale(1.12); } }
.cta-band > * { position: relative; }
.cta-band h2 { font-size: clamp(28px, 4.4vw, 50px); font-weight: 620; letter-spacing: -0.02em; line-height: 1.2; }
.cta-band p { margin: 18px auto 36px; max-width: 520px; color: var(--txt-2); }
.cta-band .btn-row { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { border-top: 1px solid var(--line); background: var(--ink-2); padding: clamp(56px, 7vw, 88px) 0 40px; }
.footer__grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 40px; }
.footer__brand p { margin-top: 16px; max-width: 260px; font-size: 13.5px; color: var(--txt-3); }
.footer__col h4 { font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--txt-3); margin-bottom: 18px; font-weight: 500; }
.footer__col a { display: block; padding: 5px 0; font-size: 14px; color: var(--txt-2); transition: color 0.25s, transform 0.3s var(--ease-out); }
.footer__col a:hover { color: var(--accent); transform: translateX(4px); }
.footer__bar { margin-top: 56px; padding-top: 26px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: var(--txt-3); }

/* ============================================================
   Page hero (about / contact)
   ============================================================ */
.page-hero { position: relative; overflow: hidden; padding: calc(var(--header-h) + clamp(70px, 10vw, 130px)) 0 clamp(70px, 9vw, 120px); }
.page-hero__bg { position: absolute; inset: 0; }
.page-hero__bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.34; }
.page-hero__bg::after { content: ""; position: absolute; inset: 0; background: var(--page-hero-veil); }
.page-hero__inner { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(38px, 6.4vw, 76px); font-weight: 640; letter-spacing: -0.025em; line-height: 1.14; max-width: 18ch; }
.page-hero__lead { margin-top: 22px; max-width: 560px; font-size: clamp(15.5px, 1.6vw, 18px); color: var(--txt-2); }

/* prose */
.prose { max-width: 760px; }
.prose h2 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 600; margin: 52px 0 18px; letter-spacing: -0.01em; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--txt-2); margin-bottom: 16px; }
.prose ul { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.prose li { position: relative; padding-left: 24px; color: var(--txt-2); }
.prose li::before { content: ""; position: absolute; left: 2px; top: 12px; width: 8px; height: 1.6px; background: var(--accent); }
.prose strong { color: var(--txt); font-weight: 600; }

/* value cards */
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.value-card { padding: 30px 32px; border-radius: var(--radius); background: var(--ink-2); border: 1px solid var(--line); transition: transform 0.45s var(--ease-out), border-color 0.4s; }
.value-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.value-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.value-card h3 i { font-style: normal; color: var(--accent); margin-right: 10px; font-family: var(--font-mono); font-size: 13px; }
.value-card p { font-size: 14.5px; color: var(--txt-2); }

/* compare table */
.compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.compare-table { width: 100%; min-width: 640px; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 18px 24px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.compare-table thead th { background: var(--ink-3); font-size: 13px; letter-spacing: 0.1em; color: var(--txt-2); font-weight: 500; }
.compare-table tbody tr { transition: background 0.3s; }
.compare-table tbody tr:hover { background: rgba(30, 184, 168, 0.04); }
.compare-table tbody tr:last-child td { border-bottom: 0; }
.compare-table td:first-child { color: var(--txt-3); font-weight: 500; }
.compare-table td:nth-child(2) { color: var(--txt-3); }
.compare-table td:nth-child(3) { color: var(--txt); }
.compare-table th:nth-child(3) { color: var(--accent); }

/* pain grid */
.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.pain-card { position: relative; padding: 30px 32px 30px 58px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--ink-2); transition: border-color 0.4s, transform 0.45s var(--ease-out); }
.pain-card:hover { border-color: rgba(255, 143, 122, 0.4); transform: translateY(-4px); }
.pain-card::before { content: ""; position: absolute; left: 28px; top: 36px; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--coral); }
.pain-card h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 8px; }
.pain-card p { font-size: 14px; color: var(--txt-2); }

/* contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(36px, 5vw, 72px); align-items: start; }
.contact-info h2, .form-card h2 { font-size: clamp(22px, 2.6vw, 28px); font-weight: 600; margin-bottom: 26px; letter-spacing: -0.01em; }
.contact-item { padding: 20px 0; border-bottom: 1px solid var(--line); }
.contact-item:first-of-type { border-top: 1px solid var(--line); }
.contact-item span { display: block; font-size: 12px; letter-spacing: 0.16em; color: var(--txt-3); text-transform: uppercase; margin-bottom: 6px; }
.contact-item a { color: var(--accent); transition: opacity 0.25s; }
.contact-item a:hover { opacity: 0.75; }
.contact-item p { font-size: 15px; color: var(--txt-2); }

.form-card { padding: clamp(28px, 3.6vw, 44px); border-radius: var(--radius); background: var(--ink-2); border: 1px solid var(--line); }
.form-card__hint { font-size: 13.5px; color: var(--txt-3); margin: -14px 0 26px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13px; color: var(--txt-2); margin-bottom: 8px; letter-spacing: 0.04em; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px;
  font: inherit; font-size: 14.5px; color: var(--txt);
  background: var(--ink); border: 1px solid var(--line-2); border-radius: 12px;
  transition: border-color 0.3s, box-shadow 0.3s;
  appearance: none;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(30, 184, 168, 0.14);
}
.field select { background-image: linear-gradient(45deg, transparent 50%, var(--txt-3) 50%), linear-gradient(135deg, var(--txt-3) 50%, transparent 50%); background-position: calc(100% - 21px) 50%, calc(100% - 16px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.form-note { margin-top: 16px; font-size: 13px; color: var(--accent); opacity: 0; transform: translateY(6px); transition: opacity 0.4s, transform 0.4s; }
.form-note.is-visible { opacity: 1; transform: none; }

/* full-bleed image band */
.image-band { position: relative; overflow: hidden; }
.image-band img { width: 100%; max-height: 520px; object-fit: cover; transform: scale(1.12); transition: transform 1.6s var(--ease-out); }
.image-band.is-inview img { transform: scale(1); }

/* ============================================================
   Live demo (product mockup)
   ============================================================ */
.demo-shell {
  position: relative; max-width: 880px; margin: 0 auto;
  border-radius: calc(var(--radius) + 4px);
  background: var(--ink-2); border: 1px solid var(--line-2);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.75), 0 0 0 1px rgba(30, 184, 168, 0.05);
  overflow: hidden;
}
.demo-shell::before {
  content: ""; position: absolute; inset: -2px; z-index: 0; pointer-events: none;
  background: radial-gradient(50% 30% at 50% 0%, rgba(30, 184, 168, 0.09), transparent);
}
.demo-bar { position: relative; z-index: 1; display: flex; align-items: center; gap: 8px; padding: 14px 20px; border-bottom: 1px solid var(--line); }
.demo-bar i { width: 11px; height: 11px; border-radius: 50%; background: #2a3242; }
.demo-bar i:nth-child(1) { background: #ff5f57; }
.demo-bar i:nth-child(2) { background: #febc2e; }
.demo-bar i:nth-child(3) { background: #28c840; }
.demo-bar span { margin-left: 12px; font-size: 12.5px; color: var(--txt-3); letter-spacing: 0.06em; font-family: var(--font-mono); }
.demo-body { position: relative; z-index: 1; display: grid; grid-template-columns: 200px 1fr; min-height: 380px; }
.demo-side { border-right: 1px solid var(--line); padding: 18px 12px; display: flex; flex-direction: column; gap: 4px; }
.demo-side-item { display: flex; align-items: center; gap: 9px; padding: 9px 12px; font-size: 13px; color: var(--txt-3); border-radius: 9px; transition: background 0.3s, color 0.3s; }
.demo-side-item::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--line-2); transition: background 0.3s; }
.demo-side-item.is-active { background: rgba(30, 184, 168, 0.09); color: var(--txt); }
.demo-side-item.is-active::before { background: var(--accent); }
.demo-main { padding: clamp(24px, 3.4vw, 40px); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; gap: 22px; }
.demo-logo { width: 68px; height: 68px; padding: 14px; border-radius: 20px; background: var(--ink-3); border: 1px solid var(--line-2); animation: demo-breathe 3.4s ease-in-out infinite; }
.demo-logo img { width: 100%; height: 100%; object-fit: contain; }
@keyframes demo-breathe { 0%, 100% { box-shadow: 0 0 0 0 rgba(30, 184, 168, 0); } 50% { box-shadow: 0 0 34px 2px rgba(30, 184, 168, 0.16); } }
.demo-wave { display: flex; align-items: center; gap: 5px; height: 26px; }
.demo-wave i { width: 3.5px; border-radius: 3px; background: var(--accent); height: 6px; transition: height 0.3s; }
.demo-wave.is-active i { animation: wave-bar 1.05s ease-in-out infinite; }
.demo-wave i:nth-child(2) { animation-delay: 0.12s; }
.demo-wave i:nth-child(3) { animation-delay: 0.24s; }
.demo-wave i:nth-child(4) { animation-delay: 0.36s; }
.demo-wave i:nth-child(5) { animation-delay: 0.48s; }
@keyframes wave-bar { 0%, 100% { height: 6px; } 50% { height: 24px; } }
.demo-status { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: var(--txt-2); }
.demo-chip { padding: 3px 10px; font-size: 11px; font-weight: 600; letter-spacing: 0.1em; border-radius: 6px; background: rgba(30, 184, 168, 0.14); color: var(--accent); }
.demo-preview {
  width: 100%; max-width: 560px; min-height: 74px;
  padding: 18px 22px; border-radius: 14px;
  background: var(--ink); border: 1px solid var(--line);
  font-size: 14.5px; line-height: 1.8; color: var(--txt-2); text-align: left;
  opacity: 0; transform: translateY(10px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}
.demo-preview.is-visible { opacity: 1; transform: none; }
.demo-cursor { display: inline-block; width: 8px; height: 17px; margin-left: 2px; vertical-align: -3px; background: var(--accent); animation: blink 0.9s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ============================================================
   Related products
   ============================================================ */
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.related-card {
  position: relative; display: flex; align-items: center; gap: 22px;
  padding: 24px; border-radius: var(--radius);
  background: var(--ink-2); border: 1px solid var(--line); overflow: hidden;
  transition: transform 0.45s var(--ease-out), border-color 0.4s;
}
.related-card:hover { transform: translateY(-5px); border-color: var(--line-2); }
.related-card__img { width: 132px; aspect-ratio: 4 / 3; flex-shrink: 0; border-radius: 12px; overflow: hidden; }
.related-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease-out); }
.related-card:hover .related-card__img img { transform: scale(1.08); }
.related-card strong { display: block; font-size: 19px; margin-bottom: 5px; }
.related-card span { font-size: 13.5px; color: var(--txt-3); }
.related-card__arrow { margin-left: auto; color: var(--txt-3); font-size: 20px; transition: transform 0.35s var(--ease-out), color 0.3s; }
.related-card:hover .related-card__arrow { transform: translateX(6px); color: var(--accent); }

/* ============================================================
   anyCode workspace mock & orbit
   ============================================================ */
.ws-shell { max-width: 980px; margin: 56px auto 0; border-radius: calc(var(--radius) + 4px); border: 1px solid var(--line-2); background: rgba(11, 14, 20, 0.82); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); overflow: hidden; box-shadow: 0 50px 120px -40px rgba(0, 0, 0, 0.8); }
.ws-body { display: grid; grid-template-columns: 190px 1fr 190px; min-height: 330px; }
.ws-side { border-right: 1px solid var(--line); padding: 22px 18px; display: flex; flex-direction: column; gap: 6px; }
.ws-side--right { border-right: 0; border-left: 1px solid var(--line); }
.ws-label { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.22em; color: var(--txt-3); margin-bottom: 10px; }
.ws-side strong { font-size: 15px; margin-bottom: 12px; }
.ws-nav { display: flex; flex-direction: column; gap: 5px; }
.ws-nav span { padding: 8px 11px; font-size: 12.5px; color: var(--txt-3); border-radius: 8px; font-family: var(--font-mono); transition: background 0.3s, color 0.3s; }
.ws-nav span.is-active { background: rgba(30, 184, 168, 0.1); color: var(--accent); }
.ws-main { padding: 26px 28px; display: flex; flex-direction: column; }
.ws-main__head { display: flex; align-items: center; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; color: var(--txt-3); margin-bottom: 18px; }
.ws-status { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; border: 1px solid rgba(200, 241, 105, 0.35); color: var(--lime); }
.ws-status i { width: 5px; height: 5px; border-radius: 50%; background: var(--lime); animation: pulse-dot 1.8s infinite; }
.ws-main h3 { font-size: clamp(18px, 2vw, 23px); font-weight: 600; margin-bottom: 6px; }
.ws-main > p { font-size: 13.5px; color: var(--txt-3); margin-bottom: 22px; }
.ws-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px; }
.ws-step { position: relative; padding: 13px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--ink); font-size: 12.5px; transition: border-color 0.4s, background 0.4s; }
.ws-step span { display: block; font-family: var(--font-mono); font-size: 10.5px; color: var(--txt-3); margin-bottom: 4px; }
.ws-step.is-done { border-color: rgba(30, 184, 168, 0.35); }
.ws-step.is-done span { color: var(--accent); }
.ws-step.is-active { border-color: rgba(200, 241, 105, 0.4); background: rgba(200, 241, 105, 0.05); }
.ws-step.is-active::after { content: ""; position: absolute; top: 13px; right: 13px; width: 7px; height: 7px; border-radius: 50%; background: var(--lime); animation: pulse-dot 1.4s infinite; }
.ws-prompt { margin-top: auto; display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: 14px; border: 1px solid var(--line-2); background: var(--ink); }
.ws-prompt > i { font-style: normal; color: var(--accent); font-family: var(--font-mono); }
.ws-prompt p { flex: 1; font-size: 13.5px; color: var(--txt-2); overflow: hidden; white-space: nowrap; }
.ws-prompt .demo-cursor { height: 15px; }
.ws-send { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--accent); color: #052a22; font-size: 14px; flex-shrink: 0; }
.ws-models { display: flex; flex-direction: column; gap: 8px; }
.ws-model { padding: 11px 13px; border-radius: 11px; border: 1px solid var(--line); background: var(--ink); transition: border-color 0.4s; }
.ws-model span { display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--txt-3); }
.ws-model strong { font-size: 13px; font-weight: 500; }
.ws-model.is-active { border-color: rgba(30, 184, 168, 0.45); background: rgba(30, 184, 168, 0.06); }
.ws-model.is-active span { color: var(--accent); }

/* typing line */
.typing-line::after { content: ""; display: inline-block; width: 7px; height: 15px; margin-left: 2px; vertical-align: -2px; background: var(--accent); animation: blink 0.9s steps(2) infinite; }

/* orbit decoration */
.orbit { position: absolute; z-index: 0; border-radius: 50%; border: 1px dashed rgba(235, 240, 248, 0.12); pointer-events: none; animation: spin 46s linear infinite; }
.orbit--2 { animation-duration: 70s; animation-direction: reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
.orbit i { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); top: -5px; left: calc(50% - 4px); box-shadow: 0 0 18px var(--accent); }

/* topology */
.topology { display: grid; grid-template-columns: 1fr auto 1fr; gap: 26px; align-items: stretch; }
.topo-zone { padding: clamp(26px, 3.2vw, 40px); border-radius: var(--radius); border: 1px solid var(--line-2); background: var(--ink-2); transition: border-color 0.4s, transform 0.5s var(--ease-out); }
.topo-zone:hover { transform: translateY(-4px); }
.topo-zone--local { border-color: rgba(30, 184, 168, 0.3); }
.topo-zone--cloud:hover { border-color: rgba(139, 124, 246, 0.35); }
.topo-zone__head { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; color: var(--txt-3); margin-bottom: 22px; }
.topo-zone__head strong { color: var(--accent); font-weight: 500; }
.topo-zone--cloud .topo-zone__head strong { color: var(--violet); }
.topo-nodes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 20px; }
.topo-nodes div { padding: 13px 15px; border-radius: 11px; background: var(--ink); border: 1px solid var(--line); font-size: 13px; transition: border-color 0.3s; }
.topo-nodes div:hover { border-color: rgba(30, 184, 168, 0.35); }
.topo-nodes span { display: block; font-family: var(--font-mono); font-size: 10px; color: var(--txt-3); margin-bottom: 3px; }
.topo-zone > p { font-size: 13.5px; color: var(--txt-2); }
.topo-bridge { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; color: var(--txt-3); writing-mode: vertical-rl; }
.topo-bridge i { flex: 1; width: 1px; background: linear-gradient(var(--cyan), var(--violet)); position: relative; overflow: visible; }
.topo-bridge i::after { content: ""; position: absolute; left: -2px; top: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); animation: flow-dot 2.6s linear infinite; }
@keyframes flow-dot { 0% { top: 0; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { top: calc(100% - 5px); opacity: 0; } }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1080px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-card:first-child { grid-column: 1 / -1; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(3, 1fr); }
  .footer__brand { grid-column: 1 / -1; }
  .topology { grid-template-columns: 1fr; }
  .topo-bridge { writing-mode: horizontal-tb; flex-direction: row; padding: 6px 0; }
  .topo-bridge i { width: auto; height: 1px; flex: 1; background: linear-gradient(90deg, var(--cyan), var(--violet)); }
  .topo-bridge i::after { animation: flow-dot-x 2.6s linear infinite; left: 0; top: -2px; }
  @keyframes flow-dot-x { 0% { left: 0; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { left: calc(100% - 5px); opacity: 0; } }
  .ws-body { grid-template-columns: 1fr; }
  .ws-side, .ws-side--right { border: 0; border-bottom: 1px solid var(--line); flex-direction: row; flex-wrap: wrap; align-items: center; gap: 10px; }
  .ws-side--right { border-bottom: 0; border-top: 1px solid var(--line); }
  .ws-nav { flex-direction: row; }
  .ws-models { flex-direction: row; flex-wrap: wrap; }
  .ws-model { flex: 1; min-width: 100px; }
}

@media (max-width: 900px) {
  .main-nav, .header-actions .btn { display: none; }
  .nav-toggle { display: block; }
  .mega { display: none; }
  .feat-row, .feat-row--reverse { grid-template-columns: 1fr; gap: 26px; }
  .feat-row--reverse .feat-row__media { order: 0; }
  .counters { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 34px 22px; }
  .steps::before { display: none; }
  .price-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .carousel__nav { display: none; }
  .demo-body { grid-template-columns: 1fr; }
  .demo-side { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 10px 12px; }
  .demo-side-item { white-space: nowrap; }
}

@media (max-width: 640px) {
  .prod-grid { grid-template-columns: 1fr; }
  .prod-card:first-child { grid-column: auto; }
  .spec-grid, .spec-grid--three { grid-template-columns: 1fr; }
  .value-grid, .pain-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__meta { gap: 20px; }
  .carousel__slide img { aspect-ratio: 4 / 3; }
}

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