:root {
  --bg: #050608;
  --bg-soft: #0b1020;
  --grid: rgba(255,255,255,.045);
  --line: rgba(255,255,255,.08);
  --line-soft: rgba(255,255,255,.05);
  --text: #f5f7fb;
  --muted: #98a2b3;
  --soft: #c7cfdb;
  --card: #0f131d;
  --card-2: #141927;
  --white: #ffffff;
  --blue: #11d9ff;
  --blue-2: #1b61ff;
  --green: #2ede9a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #000;
  color: var(--text);
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
}

body::selection {
  background: rgba(17, 217, 255, 0.28);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-size: 50px 50px;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  mask-image: linear-gradient(to bottom, black 18%, transparent 96%);
  -webkit-mask-image: linear-gradient(to bottom, black 18%, transparent 96%);
  z-index: -3;
}

body::after {
  content: "";
  position: fixed;
  top: -12vh;
  left: 50%;
  transform: translateX(-50%);
  width: 86vw;
  height: 44vh;
  background: radial-gradient(ellipse at top, rgba(17, 217, 255, 0.16), rgba(5, 8, 20, 0) 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: -2;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 8, 20, 0.62);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.scroll-progress {
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 120;
  background: rgba(255,255,255,.03);
}

.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #11d9ff, #1b61ff);
  box-shadow: 0 0 18px rgba(17,217,255,.55);
}

.header-inner {
  min-height: 80px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
}

.brand-image {
  width: auto;
  height: 34px;
  max-width: 180px;
  border-radius: 0;
  object-fit: contain;
}

.footer-logo {
  width: auto;
  height: 30px;
  max-width: 160px;
  border-radius: 0;
  object-fit: contain;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1d4ed8, #4f46e5);
  color: #fff;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
  font-size: 18px;
  font-weight: 900;
}

.brand-mark.small {
  width: 28px;
  height: 28px;
  font-size: 16px;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-text {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.brand-tag {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.brand-text span {
  color: #3b82f6;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 34px;
  font-size: 14px;
  font-weight: 600;
  color: #d1d5db;
}

.main-nav > a,
.nav-dropdown > a,
.header-actions a,
.footer-links a {
  transition: color .2s ease, opacity .2s ease;
}

.main-nav > a:hover,
.nav-dropdown > a:hover,
.header-actions a:hover,
.footer-links a:hover {
  color: #fff;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown > a::after {
  content: "▼";
  margin-left: 7px;
  font-size: 11px;
  opacity: 0.72;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 0;
  min-width: 220px;
  padding: 10px;
  border-radius: 18px;
  background: rgba(16, 28, 49, 0.98);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: .2s ease;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 12px;
  border-radius: 12px;
  color: rgba(255,255,255,.84);
  font-size: 14px;
}

.dropdown-menu a:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.lang-switch {
  min-width: 54px;
  height: 42px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.04);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: #fff;
  font-size: 18px;
  font-weight: 900;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #fff;
  border-radius: 999px;
}

.download-btn,
.outline-btn {
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
  font-weight: 800;
}

.download-btn {
  background: #fff;
  color: #000;
  box-shadow: 0 0 40px rgba(255,255,255,.12);
}

.outline-btn {
  color: #fff;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.04);
}

.download-btn:hover,
.outline-btn:hover {
  transform: translateY(-2px);
}

.download-btn.small {
  height: 44px;
  padding: 0 20px;
  font-size: 14px;
}

.download-btn.large,
.outline-btn {
  min-width: 220px;
  height: 60px;
  padding: 0 28px;
  font-size: 18px;
}

.download-btn.giant {
  width: 100%;
  height: 58px;
  font-size: 16px;
}

.hero,
.page-hero {
  position: relative;
  z-index: 1;
  padding: 120px 0 56px;
}

.hero-inner,
.page-hero-inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.05);
  color: #cfd8e3;
  font-size: 13px;
  font-weight: 700;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px rgba(17, 217, 255, 0.95);
}

.hero-title,
.page-title {
  margin: 28px 0 20px;
  font-size: clamp(54px, 8vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.07em;
  font-weight: 900;
}

.hero-title-soft,
.page-title-soft {
  display: block;
  background: linear-gradient(180deg, #ffffff 0%, #a1a1aa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #fff;
}

.hero-title-accent {
  background: linear-gradient(135deg, #00f0ff 0%, #0057ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #31b9ff;
}

.hero-lead,
.page-lead {
  max-width: 820px;
  margin: 0 auto;
  color: #a1a1aa;
  font-size: 18px;
  line-height: 1.88;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 38px;
}

.dashboard-wrap {
  margin: 78px auto 0;
  max-width: 1080px;
  position: relative;
}

.hero-interactive {
  overflow: hidden;
}

.hero-mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(17,217,255,.14), transparent 24%),
    radial-gradient(circle at 82% 24%, rgba(27,97,255,.18), transparent 22%),
    radial-gradient(circle at 50% 82%, rgba(255,255,255,.04), transparent 30%);
  pointer-events: none;
}

.dashboard-glow {
  position: absolute;
  inset: -6px;
  background: linear-gradient(90deg, rgba(17,217,255,.3), rgba(27,97,255,.32));
  filter: blur(26px);
  opacity: .32;
  border-radius: 26px;
}

.dashboard-shell {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.08);
  background: #09090b;
  box-shadow: var(--shadow);
}

.window-bar {
  height: 42px;
  border-bottom: 1px solid rgba(255,255,255,.05);
  background: rgba(24,24,27,.56);
  display: flex;
  align-items: center;
  padding: 0 16px;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #52525b;
}

.dashboard-body {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  min-height: 470px;
}

.dashboard-stage {
  position: relative;
  padding: 32px;
  background-image:
    radial-gradient(circle at center, rgba(255,255,255,.02) 0, rgba(255,255,255,0) 58%),
    linear-gradient(to right, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: auto, 26px 26px, 26px 26px;
}

.product-preview {
  position: absolute;
  inset: 36px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.07);
  background:
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01)),
    linear-gradient(135deg, #10131a, #0a0d12 70%);
  overflow: hidden;
}

.product-preview-shot {
  background:
    radial-gradient(circle at top right, rgba(57,208,255,.12), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01)),
    linear-gradient(135deg, #10131a, #0a0d12 70%);
}

.product-preview-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .98;
}

.preview-floating {
  position: absolute;
  z-index: 2;
  min-width: 188px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(8,12,18,.82);
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 18px 40px rgba(0,0,0,.28);
  backdrop-filter: blur(12px);
}

.preview-floating-left {
  left: 24px;
  bottom: 24px;
}

.preview-floating-right {
  right: 24px;
  top: 24px;
}

.preview-floating-label {
  display: block;
  margin-bottom: 8px;
  color: #90a0bb;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.preview-floating strong {
  display: block;
  color: #f6f8ff;
  font-size: 24px;
  line-height: 1.1;
}

.preview-floating small {
  display: block;
  margin-top: 8px;
  color: #9eaabd;
  font-size: 12px;
  line-height: 1.55;
}

.preview-top {
  height: 52px;
  border-bottom: 1px solid rgba(255,255,255,.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  color: #71717a;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.preview-grid {
  display: grid;
  grid-template-columns: 88px 1fr;
  height: calc(100% - 52px);
}

.preview-sidebar {
  border-right: 1px solid rgba(255,255,255,.05);
  padding: 16px 12px;
  display: grid;
  gap: 12px;
  align-content: start;
  background: rgba(255,255,255,.01);
}

.sidebar-dot,
.toolbar-box,
.content-box,
.stats-box {
  border-radius: 12px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.06);
}

.sidebar-dot {
  height: 42px;
}

.preview-main {
  padding: 18px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
}

.preview-toolbar {
  display: grid;
  grid-template-columns: 1.4fr .9fr .8fr;
  gap: 12px;
}

.toolbar-box {
  height: 42px;
}

.preview-content {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 16px;
}

.content-box.large {
  min-height: 170px;
}

.content-stack {
  display: grid;
  gap: 16px;
}

.content-box.medium {
  min-height: 77px;
}

.preview-footer {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.stats-box {
  min-height: 56px;
}

.dashboard-side {
  padding: 28px 24px;
  display: grid;
  gap: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,.01), rgba(255,255,255,0));
  border-left: 1px solid rgba(255,255,255,.04);
}

.info-card,
.premium-card,
.article-card,
.faq-card,
.resource-card,
.download-box,
.article-shell {
  background: linear-gradient(180deg, rgba(24,24,27,.68) 0%, rgba(9,9,11,.9) 100%);
  border: 1px solid rgba(255,255,255,.03);
  border-top: 1px solid rgba(255,255,255,.15);
  border-radius: 18px;
  box-shadow: 0 4px 30px rgba(0,0,0,.5);
}

.info-card {
  padding: 18px;
  text-align: left;
}

.info-card span,
.article-card span,
.resource-chip,
.article-category {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  color: #d4d4d8;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.info-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
  line-height: 1.35;
}

.info-card p,
.premium-card p,
.article-card p,
.faq-card p,
.resource-card p,
.download-box p,
.article-content,
.article-meta {
  margin: 0;
  color: #a1a1aa;
  font-size: 15px;
  line-height: 1.82;
}

.section {
  position: relative;
  z-index: 1;
  padding: 108px 0;
}

.section-header {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-header small {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  color: #d4d4d8;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.section-header h2 {
  margin: 18px 0 14px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.05em;
  font-weight: 900;
}

.section-header p {
  margin: 0;
  color: #a1a1aa;
  font-size: 16px;
  line-height: 1.84;
}

.feature-grid,
.article-grid,
.faq-grid,
.resource-grid,
.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.premium-card,
.article-card,
.faq-card,
.resource-card {
  padding: 28px;
  transition: all .35s ease;
}

.resource-cover-link {
  display: block;
  margin: -28px -28px 18px;
}

.resource-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 18px 18px 0 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.premium-card:hover,
.article-card:hover,
.faq-card:hover,
.resource-card:hover {
  transform: translateY(-4px);
  border-top-color: rgba(0, 240, 255, 0.45);
  background: linear-gradient(180deg, rgba(39,39,42,.65) 0%, rgba(9,9,11,.92) 100%);
}

.premium-card h3,
.article-card h3,
.faq-card h3,
.resource-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.28;
}

.download-section {
  padding: 0 0 108px;
}

.keyword-ribbon {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.keyword-ribbon span {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: #d6deea;
  font-size: 13px;
  font-weight: 700;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.story-step {
  padding: 28px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(18,22,31,.88), rgba(9,11,16,.95));
}

.story-index {
  display: inline-flex;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .2em;
  color: #11d9ff;
}

.story-step h3 {
  margin: 0 0 12px;
  font-size: 28px;
  line-height: 1.18;
}

.story-step p {
  margin: 0;
  color: #a1a1aa;
  line-height: 1.85;
}

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

.metric-box {
  padding: 26px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(18,22,31,.88), rgba(9,11,16,.95));
}

.metric-box strong {
  display: block;
  font-size: 54px;
  line-height: 1;
  letter-spacing: -0.06em;
}

.metric-box span {
  display: block;
  margin-top: 10px;
  color: #aeb8c5;
  line-height: 1.7;
}

.interactive-cases {
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.case-tabs {
  display: flex;
  gap: 12px;
  padding: 20px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: #d4d4d8;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: all .25s ease;
}

.tab-btn.active,
.tab-btn:hover {
  background: #fff;
  color: #000;
  box-shadow: 0 10px 28px rgba(255,255,255,.12);
}

.case-panels {
  padding: 26px;
}

.case-panel {
  display: none;
  grid-template-columns: 1.1fr .9fr;
  gap: 24px;
  align-items: stretch;
}

.case-panel.active {
  display: grid;
}

.case-copy,
.case-visual {
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(18,22,31,.88), rgba(9,11,16,.95));
  padding: 28px;
}

.case-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  color: #d4d4d8;
  font-size: 12px;
  font-weight: 800;
}

.case-copy h3 {
  margin: 18px 0 12px;
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.case-copy p {
  margin: 0;
  color: #a1a1aa;
  font-size: 16px;
  line-height: 1.84;
}

.case-points {
  margin: 20px 0 0;
  padding-left: 18px;
  color: #d7dfeb;
}

.case-points li {
  margin-bottom: 10px;
}

.case-visual {
  display: grid;
  align-content: space-between;
  min-height: 320px;
  position: relative;
  overflow: hidden;
}

.case-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(17,217,255,.18), transparent 34%);
  pointer-events: none;
}

.case-kpi strong {
  display: block;
  font-size: 74px;
  line-height: 1;
  letter-spacing: -0.06em;
}

.case-kpi span {
  display: block;
  margin-top: 8px;
  color: #d7dfeb;
  font-size: 18px;
  font-weight: 700;
}

.case-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  align-items: end;
  min-height: 160px;
}

.case-bars div {
  border-radius: 18px 18px 10px 10px;
  background: linear-gradient(180deg, rgba(17,217,255,.95), rgba(27,97,255,.6));
  box-shadow: 0 12px 30px rgba(17,217,255,.18);
  animation: barsPulse 3s ease-in-out infinite;
}

.case-bars div:nth-child(1) { height: 42%; animation-delay: .1s; }
.case-bars div:nth-child(2) { height: 76%; animation-delay: .25s; }
.case-bars div:nth-child(3) { height: 58%; animation-delay: .4s; }
.case-bars div:nth-child(4) { height: 88%; animation-delay: .55s; }

@keyframes barsPulse {
  0%, 100% { transform: translateY(0); opacity: .82; }
  50% { transform: translateY(-8px); opacity: 1; }
}

.download-shell {
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.08);
  background:
    radial-gradient(circle at right top, rgba(17,217,255,.08), transparent 28%),
    linear-gradient(135deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.download-layout {
  display: grid;
  grid-template-columns: 1fr .95fr;
  gap: 0;
}

.download-copy {
  padding: 42px;
}

.download-copy h3 {
  margin: 18px 0 14px;
  font-size: 42px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.download-copy p {
  margin: 0;
  color: #b3bfce;
  font-size: 16px;
  line-height: 1.84;
}

.download-list {
  margin: 22px 0 0;
  padding-left: 18px;
  color: #d5deeb;
}

.download-list li {
  margin-bottom: 10px;
  line-height: 1.8;
}

.download-panel {
  padding: 34px;
  border-left: 1px solid rgba(255,255,255,.06);
  background: rgba(0,0,0,.18);
}

.download-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.download-badge {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  color: #eef4ff;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.download-version {
  color: #d4d4d8;
  font-size: 14px;
  font-weight: 700;
}

.download-box {
  padding: 28px;
}

.download-box h4 {
  margin: 0 0 10px;
  font-size: 28px;
}

.download-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.download-meta span {
  padding: 12px 10px;
  border-radius: 14px;
  background: rgba(255,255,255,.05);
  color: #d4d4d8;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
}

.page-hero {
  padding-bottom: 24px;
}

.page-hero .page-title {
  font-size: clamp(42px, 6vw, 72px);
}

.resource-filter {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.filter-btn {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: #d4d4d8;
  font-size: 14px;
  font-weight: 700;
}

.filter-btn.active,
.filter-btn:hover {
  background: #fff;
  color: #000;
}

.resource-card .resource-meta,
.article-meta {
  margin-top: 16px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}

.article-shell {
  padding: 30px;
}

.article-cover {
  border-radius: 20px;
  margin-bottom: 22px;
}

.article-content {
  white-space: pre-line;
}

.sidebar-card {
  padding: 22px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(24,24,27,.68) 0%, rgba(9,9,11,.9) 100%);
  border: 1px solid rgba(255,255,255,.03);
  border-top: 1px solid rgba(255,255,255,.15);
}

.sidebar-card + .sidebar-card {
  margin-top: 18px;
}

.sidebar-card h4 {
  margin: 0 0 14px;
  font-size: 18px;
}

.sidebar-link {
  display: block;
  color: #d4d4d8;
  font-size: 14px;
  line-height: 1.7;
  padding: 10px 0;
  border-top: 1px solid rgba(255,255,255,.05);
}

.sidebar-link:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 28px 0 40px;
}

.tilt-card {
  transform-style: preserve-3d;
  will-change: transform;
}

.pulse-box {
  position: relative;
}

.pulse-box::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(17,217,255,.18), rgba(27,97,255,.12), transparent 60%);
  opacity: .7;
  z-index: -1;
  filter: blur(18px);
}

.spotlight {
  position: fixed;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(17,217,255,.12) 0%, rgba(17,217,255,0) 68%);
  transform: translate(-50%, -50%);
  z-index: -1;
  opacity: .7;
}

[data-aos] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s ease;
}

[data-aos].visible {
  opacity: 1;
  transform: translateY(0);
}

.site-header.scrolled {
  background: rgba(5, 8, 20, 0.88);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: #d4d4d8;
  font-size: 14px;
  font-weight: 700;
}

.footer-note,
.copyright {
  width: 100%;
  margin: 0;
  color: #71717a;
  font-size: 12px;
}

@media (max-width: 1100px) {
  .header-actions {
    display: none;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 12px;
    right: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 14px;
    border-radius: 18px;
    background: rgba(5, 8, 20, 0.98);
    border: 1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow);
  }

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

  .main-nav > a,
  .nav-dropdown > a {
    padding: 12px 10px;
    border-radius: 12px;
    background: rgba(255,255,255,.03);
  }

  .dropdown-menu {
    position: static;
    min-width: 0;
    margin-top: 8px;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    box-shadow: none;
  }

  .nav-dropdown.active .dropdown-menu {
    display: block;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    justify-self: end;
  }

  .dashboard-body,
  .download-layout,
  .feature-grid,
  .article-grid,
  .faq-grid,
  .resource-grid,
  .quick-grid,
  .article-layout,
  .case-panel,
  .story-grid,
  .metrics-wall {
    grid-template-columns: 1fr;
  }

  .download-meta {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .container {
    width: min(var(--max), calc(100% - 24px));
  }

  .hero,
  .page-hero {
    padding-top: 104px;
  }

  .scroll-progress {
    top: 72px;
  }

  .hero-title,
  .page-title {
    font-size: 50px;
  }

  .hero-lead,
  .page-lead {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .download-btn.large,
  .outline-btn {
    width: 100%;
  }

  .download-meta,
  .preview-content,
  .preview-footer,
  .preview-toolbar {
    grid-template-columns: 1fr;
  }

  .product-preview {
    inset: 18px;
  }

  .preview-floating {
    min-width: 0;
    padding: 12px 14px;
  }

  .preview-floating strong {
    font-size: 18px;
  }
}