/* ===== Reset / Tokens ===== */
*,*::before,*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
:root {
  --bg: #ffffff;
  --bg-soft: #f8f9ff;
  --surface: #ffffff;
  --line: #e5e7f5;
  --line-2: #cdd2ee;
  --text: #1e1b4b;
  --muted: #5a5d8b;
  --dim: #9094b8;
  --primary: #6366f1;
  --primary-2: #4f46e5;
  --primary-3: #a78bfa;
  --accent: #f43f5e;
  --good: #22c55e;
  --r: 6px;
  --r-lg: 14px;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1,h2,h3,h4,h5,p,ul,ol { margin: 0; padding: 0; }
ul,ol { list-style: none; }
a { color: inherit; text-decoration: none; }
img,svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.bg-soft { background: var(--bg-soft); }

.skip-link {
  position: absolute; top: -48px; left: 16px; z-index: 999;
  padding: 8px 16px; background: var(--primary); color: #fff;
  border-radius: var(--r); font-size: 13px; font-weight: 700;
}
.skip-link:focus { top: 12px; outline: none; }

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.hd-row {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 78px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px; height: 36px;
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.005em;
}

.nav-menu {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}
.nav-a {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav-a.active, .nav-a:hover { color: var(--primary); }
.nav-a.active::after {
  content: "";
  position: absolute;
  left: 50%; right: 50%; bottom: -8px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.25s;
}

/* 移动端菜单专属下载按钮 - 桌面隐藏 */
.nav-a-cta { display: none; }

.btn-primary, .hd-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  border-radius: 999px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(99,102,241,0.3);
  flex-shrink: 0;
}
.btn-primary:hover, .hd-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(99,102,241,0.4);
}

.nav-burger {
  display: none;
  flex-direction: column; gap: 4px; padding: 8px;
}
.nav-burger span {
  display: block; width: 20px; height: 2px;
  background: var(--primary); border-radius: 2px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 13px 28px;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  border-radius: 999px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(99,102,241,0.28);
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(99,102,241,0.4);
}
.btn-ghost {
  background: var(--surface);
  color: var(--primary);
  border: 1.5px solid var(--line-2);
  box-shadow: none;
}
.btn-ghost:hover {
  background: var(--bg-soft);
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(99,102,241,0.15);
}
.btn-lg { padding: 16px 36px; font-size: 15px; }

/* ===== Banner / Hero ===== */
.banner {
  position: relative;
  padding: 90px 0 110px;
  background: linear-gradient(180deg, #f5f4ff 0%, #ffffff 100%);
  overflow: hidden;
}
.banner-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.banner-text { position: relative; }
.banner-shapes {
  position: absolute;
  inset: -40px -20px -20px -40px;
  pointer-events: none;
  z-index: 0;
}
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.7;
}
.shape1 { top: 0%; left: 10%; width: 14px; height: 14px; background: var(--primary-3); animation: float1 6s ease-in-out infinite; }
.shape2 { top: 30%; left: -5%; width: 22px; height: 22px; background: #fbbf24; border-radius: 4px; animation: float2 7s ease-in-out infinite; }
.shape3 { top: 70%; left: 5%; width: 10px; height: 10px; background: var(--accent); animation: float1 5s ease-in-out infinite; }
.shape4 { top: 10%; right: 30%; width: 18px; height: 18px; background: var(--primary); border-radius: 4px; animation: float2 8s ease-in-out infinite; }
.shape5 { top: 55%; right: 5%; width: 12px; height: 12px; background: var(--good); animation: float1 6.5s ease-in-out infinite; }
.shape6 { top: 90%; right: 25%; width: 16px; height: 16px; background: var(--primary-3); border-radius: 4px; opacity: 0.5; animation: float2 9s ease-in-out infinite; }
.shape7 { top: 25%; right: 50%; width: 8px; height: 8px; background: #fbbf24; opacity: 0.8; animation: float1 7s ease-in-out infinite; }
@keyframes float1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(180deg); }
}
@keyframes float2 {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(14px) rotate(-180deg); }
}

.banner-text h1 {
  position: relative;
  z-index: 1;
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
}
.banner-text p {
  position: relative;
  z-index: 1;
  font-size: 16px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 480px;
}
.banner-btns {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.banner-image {
  position: relative;
  text-align: center;
}
.banner-image svg {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 50px rgba(99,102,241,0.18));
}

/* ===== Section base ===== */
.section-title { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-title h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.section-title p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
}

/* ===== Features ===== */
.features { padding: 100px 0 90px; }
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 38px 30px 34px;
  text-align: center;
  transition: all 0.25s;
}
.feat:hover {
  transform: translateY(-4px);
  border-color: var(--primary-3);
  box-shadow: 0 18px 40px rgba(99,102,241,0.12);
}
.feat-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  margin: 0 auto 22px;
  background: linear-gradient(135deg, rgba(167,139,250,0.18), rgba(99,102,241,0.08));
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.feat-icon svg { width: 28px; height: 28px; }
.feat h5 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}
.feat p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.85;
}

/* ===== Counters ===== */
.counters {
  padding: 80px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.counters-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.counter { text-align: center; }
.counter-num {
  display: block;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.counter p {
  font-size: 14px;
  color: var(--muted);
  margin-top: 6px;
}

/* ===== Interact (图文) ===== */
.interact { padding: 100px 0; }
.ia-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.ia-grid-rev .ia-text { order: 1; }
.ia-grid-rev .ia-image { order: 2; }
.ia-image svg {
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  filter: drop-shadow(0 16px 40px rgba(99,102,241,0.12));
}
.ia-text { max-width: 460px; }
.ia-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.ia-icon svg { width: 26px; height: 26px; }
.ia-text h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 800;
  letter-spacing: -0.005em;
  line-height: 1.3;
  margin-bottom: 14px;
}
.ia-text p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 24px;
}

/* ===== App Screens ===== */
.app-screens { padding: 100px 0 115px; }
.app-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.app-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}
.app-mock {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: 18px;
  background: linear-gradient(180deg, #1e1b4b, #312e81);
  border: 3px solid #1e1b4b;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(30,27,75,0.25);
}
.app-mock::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 5px;
  background: #0f172a;
  border-radius: 4px;
}
.app-mock::after {
  content: "";
  position: absolute;
  top: 20%;
  left: 12%;
  right: 12%;
  height: 60%;
  background: linear-gradient(180deg, rgba(167,139,250,0.5), rgba(99,102,241,0.3));
  border-radius: 8px;
}
.app-mock-2::after { background: linear-gradient(180deg, rgba(34,197,94,0.5), rgba(99,102,241,0.3)); }
.app-mock-3::after { background: linear-gradient(180deg, rgba(244,63,94,0.5), rgba(167,139,250,0.3)); }
.app-mock-4::after { background: linear-gradient(180deg, rgba(251,191,36,0.5), rgba(99,102,241,0.3)); }
.app-mock-5::after { background: linear-gradient(180deg, rgba(99,102,241,0.6), rgba(167,139,250,0.3)); }
.app-card span {
  font-size: 13px;
  color: var(--muted);
}

/* ===== Blog ===== */
.blog {
  padding: 110px 0 90px;
  border-top: 1px solid var(--line);
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.blog-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all 0.25s;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(99,102,241,0.12);
}
.blog-img {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  overflow: hidden;
}
.blog-img-1 { background: linear-gradient(135deg, #a78bfa, #6366f1); }
.blog-img-2 { background: linear-gradient(135deg, #fbbf24, #f43f5e); }
.blog-img-3 { background: linear-gradient(135deg, #22c55e, #14b8a6); }
.blog-img-4 { background: linear-gradient(135deg, #06b6d4, #6366f1); }
.blog-img-5 { background: linear-gradient(135deg, #ec4899, #a78bfa); }
.blog-img-6 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.blog-date {
  position: absolute;
  bottom: -1px;
  left: 0;
  padding: 10px 16px 12px;
  background: var(--surface);
  font-size: 12px;
  color: var(--muted);
  border-top-right-radius: 10px;
}
.blog-date b {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}
.blog-body {
  padding: 28px 24px 24px;
}
.blog-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
  letter-spacing: -0.005em;
}
.blog-body h3 a { transition: color 0.2s; }
.blog-body h3 a:hover { color: var(--primary); }
.blog-body p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-more {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}
.blog-more:hover { color: var(--primary-2); }

/* ===== Download CTA ===== */
.download-call {
  padding: 110px 0 130px;
  border-top: 1px solid var(--line);
}
.dc-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.dc-inner h2 {
  font-size: clamp(28px, 3.8vw, 44px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.dc-inner h3 {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

/* ===== Footer ===== */
.footer {
  position: relative;
  background: linear-gradient(180deg, #0f172a, #1e1b4b);
  color: #cbd5e1;
  padding: 80px 0 32px;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(167,139,250,0.18), transparent 70%);
  pointer-events: none;
}
.ft-top {
  position: relative;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ft-about .logo .logo-text {
  background: linear-gradient(135deg, #fff, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ft-about p {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.85;
  margin-top: 18px;
}
.ft-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}
.ft-contact li {
  font-size: 13.5px;
  color: #94a3b8;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ft-contact .ic {
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(167,139,250,0.18);
  color: #a78bfa;
  border-radius: 6px;
  flex-shrink: 0;
}
.ft-links li {
  font-size: 14px;
  color: #94a3b8;
  margin-bottom: 12px;
  transition: color 0.2s;
}
.ft-links a:hover { color: #a78bfa; }

.ft-friend {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  line-height: 1.6;
}
.ft-friend-label {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  margin-right: 4px;
  background: rgba(167,139,250,0.18);
  color: #c4b5fd;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.ft-friend a {
  color: #94a3b8;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s;
  position: relative;
}
.ft-friend a::after {
  content: "·";
  position: absolute;
  right: -10px;
  color: #475569;
  pointer-events: none;
}
.ft-friend a:last-child::after { display: none; }
.ft-friend a:hover {
  color: #fff;
  background: rgba(167,139,250,0.12);
}

.ft-bottom {
  position: relative;
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}
.ft-bottom a {
  color: #94a3b8;
  margin-left: 12px;
}
.ft-bottom a:hover { color: #a78bfa; }

/* ===== Article 详情页 ===== */
.crumb {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  font-size: 13px;
  color: var(--muted);
}
.crumb a { color: var(--muted); transition: color 0.2s; }
.crumb a:hover { color: var(--primary); }
.crumb span { margin: 0 8px; color: var(--dim); }

.article-wrap {
  padding: 64px 0 80px;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 56px;
  align-items: start;
}
.article {
  max-width: 760px;
}
.article-header { margin-bottom: 40px; }
.article h1 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.005em;
  margin-bottom: 18px;
  color: var(--text);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--dim);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.article-meta .tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(99,102,241,0.1);
  color: var(--primary);
  border-radius: 999px;
  font-weight: 700;
}
.article-body {
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--text);
}
.article-body h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 44px 0 16px;
  letter-spacing: -0.005em;
  position: relative;
  padding-left: 18px;
}
.article-body h2::before {
  content: "";
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--primary-3), var(--primary));
}
.article-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--text);
}
.article-body p { margin-bottom: 20px; }
.article-body strong { color: var(--primary); font-weight: 700; }
.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body ul, .article-body ol {
  margin: 0 0 22px 22px;
  padding: 0;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li {
  margin-bottom: 8px;
  padding-left: 6px;
}
.article-body li::marker { color: var(--primary); }
.article-body blockquote {
  margin: 24px 0;
  padding: 18px 24px;
  background: var(--bg-soft);
  border-left: 4px solid var(--primary-3);
  border-radius: 0 var(--r) var(--r) 0;
  color: var(--muted);
  font-size: 14.5px;
}

.article-cta {
  margin-top: 48px;
  padding: 32px 28px;
  background: linear-gradient(135deg, rgba(167,139,250,0.12), rgba(99,102,241,0.08));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  text-align: center;
}
.article-cta h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 8px;
}
.article-cta p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
}

/* 侧边栏 */
.aside {
  position: sticky;
  top: 96px;
  align-self: start;
}
.aside-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 22px;
  margin-bottom: 20px;
}
.aside-block h4 {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.aside-list li {
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.6;
}
.aside-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.aside-list li:first-child { padding-top: 0; }
.aside-list a { color: var(--text); transition: color 0.2s; }
.aside-list a:hover { color: var(--primary); }
.aside-list .date {
  display: block;
  font-size: 11px;
  color: var(--dim);
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

.aside-cta {
  text-align: center;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  color: #fff;
  padding: 28px 22px;
  border-radius: var(--r-lg);
}
.aside-cta h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 8px;
  text-transform: none;
  letter-spacing: 0;
}
.aside-cta p {
  font-size: 13px;
  opacity: 0.9;
  margin-bottom: 16px;
  line-height: 1.6;
}
.aside-cta .btn {
  background: #fff;
  color: var(--primary);
  padding: 10px 22px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}
.aside-cta .btn:hover {
  transform: translateY(-1px);
}

@media (max-width: 1080px) {
  .article-layout { grid-template-columns: 1fr; gap: 40px; }
  .aside { position: static; }
}

/* ===== Back to top ===== */
.back-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(99,102,241,0.4);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}
.back-top.show {
  opacity: 1;
  pointer-events: auto;
}
.back-top:hover { transform: translateY(-3px); }

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  .banner-inner, .ia-grid { grid-template-columns: 1fr; gap: 56px; }
  .ia-grid-rev .ia-text { order: 1; }
  .ia-grid-rev .ia-image { order: 2; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(3, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .counters-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .nav-menu { display: none; }
  .nav-burger { display: inline-flex; }
  .nav-menu.open {
    display: flex; flex-direction: column;
    position: absolute; top: 78px; left: 0; right: 0;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding: 18px 28px 28px; gap: 14px;
  }
  .nav-a-cta {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    padding: 14px 0;
    margin-top: 8px;
    background: linear-gradient(135deg, var(--primary-3), var(--primary));
    color: #fff !important;
    border-radius: 10px;
    font-weight: 700;
    box-shadow: 0 8px 22px rgba(99,102,241,0.32);
  }
  .nav-a-cta::after { display: none !important; }
  .hd-cta { display: none; }
  .container { padding: 0 20px; }
  .banner { padding: 56px 0 80px; }
  .features, .interact, .app-screens, .blog, .download-call { padding: 64px 0; }
  .feat-grid, .blog-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .counters-grid { grid-template-columns: 1fr 1fr; }
  .ft-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .app-grid { grid-template-columns: 1fr; }
  .ft-top { grid-template-columns: 1fr; }
}