/* CoAssist · Marketing site styles — built on the shared design language (ds.css) */
:root {
  --c-primary-50:#eff5ff; --c-primary-100:#dbe7fe; --c-primary-200:#bfd2fe; --c-primary-300:#93b3fd; --c-primary-400:#608bfa;
  --c-primary-500:#3b6df5; --c-primary-600:#2563eb; --c-primary-700:#1d4ed8; --c-primary-800:#1e40af; --c-primary-900:#1e3a8a;
  --c-accent-400:#a78bfa; --c-accent-500:#8b5cf6; --c-accent-600:#7c3aed;
  --c-mesh-1: 96% 95% 250; --c-mesh-2: 60% 95% 220; --c-mesh-3: 70% 95% 190;

  --c-ink-0:#ffffff; --c-ink-50:#f8fafc; --c-ink-100:#f1f5f9; --c-ink-200:#e6ebf2; --c-ink-300:#cdd5e0;
  --c-ink-400:#9aa5b8; --c-ink-500:#64748b; --c-ink-600:#475569; --c-ink-700:#334155; --c-ink-800:#1e293b; --c-ink-900:#0b1220;

  --c-success-50:#ecfdf5; --c-success-500:#10b981; --c-success-600:#059669; --c-success-700:#047857;
  --c-warning-500:#f59e0b; --c-danger-500:#ef4444;

  --bg-page-from:#f5f7fb; --bg-page-to:#eef2fb;
  --surface-1: rgba(255,255,255,0.72);
  --surface-2: rgba(255,255,255,0.55);
  --surface-solid: #ffffff;
  --hairline: rgba(15,23,42,0.06);
  --hairline-strong: rgba(15,23,42,0.1);
  --shadow-soft: 0 1px 2px rgba(15,23,42,0.04), 0 1px 0 rgba(15,23,42,0.02);
  --shadow-card: 0 1px 1px rgba(15,23,42,0.04), 0 8px 24px -12px rgba(15,23,42,0.12);
  --shadow-lift: 0 1px 1px rgba(15,23,42,0.04), 0 24px 48px -16px rgba(15,23,42,0.18);
  --shadow-pop:  0 1px 1px rgba(15,23,42,0.06), 0 32px 64px -20px rgba(37,99,235,0.32);

  --r-3:8px; --r-4:10px; --r-5:14px; --r-6:20px; --r-7:28px; --r-pill:999px;

  --ff-sans: "PingFang SC", "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --ff-mono: "SF Mono", "JetBrains Mono", "Menlo", ui-monospace, monospace;
  --ff-display: "Inter", "PingFang SC", -apple-system, sans-serif;

  --grad-brand: linear-gradient(120deg, var(--c-primary-600), var(--c-accent-500));
  --grad-brand-soft: linear-gradient(120deg, var(--c-primary-500), var(--c-accent-500));

  --ease-standard: cubic-bezier(.2,.8,.2,1);
  --dur-fast:120ms; --dur-base:220ms; --dur-slow:600ms;
  --maxw: 1180px;
}

*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin:0; padding:0; }
body {
  font-family: var(--ff-sans);
  color: var(--c-ink-800);
  font-size: 15px; line-height: 1.6;
  background:
    radial-gradient(1200px 620px at 8% -10%, hsl(var(--c-mesh-1)/0.55), transparent 60%),
    radial-gradient(960px 560px at 96% -4%, hsl(var(--c-mesh-2)/0.5), transparent 58%),
    radial-gradient(900px 700px at 50% 118%, hsl(var(--c-mesh-3)/0.32), transparent 56%),
    linear-gradient(180deg, var(--bg-page-from), var(--bg-page-to));
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: hsl(var(--c-mesh-1)/0.6); color: var(--c-ink-900); }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-thumb { background: rgba(15,23,42,0.16); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(15,23,42,0.3); background-clip: padding-box; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- Brand mark (CoAssist logo) ---- */
.mark {
  position: relative; flex: none;
  width: 32px; height: 32px; border-radius: 9px;
  background: url("coassist-logo.svg") center / cover no-repeat, #081225;
  box-shadow: 0 6px 16px -8px rgba(8,18,37,0.55);
}
.mark.lg { width: 40px; height: 40px; border-radius: 11px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px; border-radius: var(--r-4);
  font-family: var(--ff-display); font-size: 14.5px; font-weight: 600; letter-spacing: -0.01em;
  cursor: pointer; border: 1px solid transparent; white-space: nowrap;
  transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard),
              background var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard);
}
.btn svg { width: 17px; height: 17px; }
.btn-primary {
  color: #fff; background: var(--grad-brand);
  box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, var(--shadow-pop);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, 0 38px 70px -22px rgba(37,99,235,0.45); }
.btn-ghost {
  color: var(--c-ink-800); background: var(--surface-1); border-color: var(--hairline-strong);
  backdrop-filter: blur(10px); box-shadow: var(--shadow-soft);
}
.btn-ghost:hover { transform: translateY(-2px); background: #fff; box-shadow: var(--shadow-card); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 13.5px; }
.btn-lg { height: 50px; padding: 0 26px; font-size: 15.5px; }
.btn-block { width: 100%; }

/* ---- Eyebrow / section heads ---- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  height: 28px; padding: 0 12px 0 10px; border-radius: var(--r-pill);
  background: var(--surface-1); border: 1px solid var(--hairline-strong);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
  font-size: 12.5px; font-weight: 500; color: var(--c-ink-600); letter-spacing: 0.01em;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--grad-brand); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head .eyebrow { margin-bottom: 18px; }
.section-title {
  font-family: var(--ff-display); font-weight: 680; letter-spacing: -0.025em; color: var(--c-ink-900);
  font-size: clamp(28px, 4vw, 40px); line-height: 1.12; margin: 0 0 14px;
}
.section-sub { font-size: 16px; color: var(--c-ink-500); line-height: 1.65; margin: 0; }
.grad-text { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }

section { position: relative; padding: 96px 0; }

/* ============== NAVBAR ============== */
.nav {
  position: sticky; top: 0; z-index: 80;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base), background var(--dur-base), backdrop-filter var(--dur-base);
}
.nav.scrolled {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 66px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-name { font-family: var(--ff-display); font-weight: 680; font-size: 17px; letter-spacing: -0.02em; color: var(--c-ink-900); }
.brand-sub { font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-ink-400); margin-top: -2px; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 6px; }
.nav-links a {
  padding: 8px 13px; border-radius: var(--r-3); font-size: 14px; font-weight: 500; color: var(--c-ink-600);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.nav-links a:hover { background: var(--c-ink-100); color: var(--c-ink-900); }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.nav-cta .login { padding: 9px 14px; border-radius: var(--r-3); font-size: 14px; font-weight: 500; color: var(--c-ink-700); transition: background var(--dur-fast); }
.nav-cta .login:hover { background: var(--c-ink-100); }
.lang-switch { display: inline-flex; align-items: center; gap: 5px; padding: 8px 11px; border-radius: var(--r-3);
  font-size: 13px; font-weight: 600; color: var(--c-ink-600); border: 1px solid var(--hairline-strong);
  background: var(--surface-1); transition: background var(--dur-fast), color var(--dur-fast); }
.lang-switch svg { width: 15px; height: 15px; }
.lang-switch:hover { background: var(--c-ink-100); color: var(--c-ink-900); }
/* keep the nav contact button identical width across zh / en */
.nav-cta .btn-primary { width: 142px; padding-left: 12px; padding-right: 12px; }
.nav-burger { display: none; width: 40px; height: 40px; border-radius: var(--r-3); border: 1px solid var(--hairline-strong);
  background: var(--surface-1); align-items: center; justify-content: center; cursor: pointer; color: var(--c-ink-700); }
.nav-burger svg { width: 20px; height: 20px; }

/* ============== HERO ============== */
.hero { padding: 64px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr 1.05fr; gap: 56px; align-items: center; }
.hero-eyebrow { margin-bottom: 22px; }
.hero h1 {
  font-family: var(--ff-display); font-weight: 700; letter-spacing: -0.035em; color: var(--c-ink-900);
  font-size: clamp(36px, 5.2vw, 58px); line-height: 1.04; margin: 0 0 20px;
}
.hero h1 .nb { white-space: nowrap; }
.hero-copy { font-size: 17.5px; line-height: 1.62; color: var(--c-ink-600); max-width: 520px; margin: 0 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; font-size: 13px; color: var(--c-ink-500); }
.hero-meta .sep { width: 1px; height: 14px; background: var(--hairline-strong); }
.status-pill { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--c-ink-700); }
.status-pill .dot { width: 8px; height: 8px; border-radius: 999px; background: var(--c-success-500);
  box-shadow: 0 0 0 4px rgba(16,185,129,0.16); animation: pulse 2.4s var(--ease-standard) infinite; }
@keyframes pulse { 0%,100%{ box-shadow:0 0 0 3px rgba(16,185,129,0.18);} 50%{ box-shadow:0 0 0 6px rgba(16,185,129,0.05);} }

/* hero decorative blobs */
.blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.55; pointer-events: none; z-index: -1; }
.blob.b1 { width: 460px; height: 460px; top: -120px; left: -140px; background: radial-gradient(circle, rgba(96,139,250,0.55), transparent 68%); }
.blob.b2 { width: 520px; height: 520px; top: -160px; right: -180px; background: radial-gradient(circle, rgba(167,139,250,0.5), transparent 68%); }

/* ---- Hero product mock ---- */
.mock {
  position: relative; border-radius: var(--r-7);
  background: var(--surface-1); border: 1px solid var(--hairline-strong);
  box-shadow: var(--shadow-lift); backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%);
  padding: 14px;
}
.mock::before { content:""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(160deg, rgba(255,255,255,0.8), rgba(255,255,255,0) 40%); -webkit-mask:
  linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 4px 6px 12px; }
.mock-dots { display: flex; gap: 6px; }
.mock-dots i { width: 10px; height: 10px; border-radius: 999px; display: block; }
.mock-dots .r{ background:#f87171;} .mock-dots .y{ background:#fbbf24;} .mock-dots .g{ background:#34d399;}
.mock-tabs { display: flex; gap: 4px; margin-left: 8px; }
.mock-tab { font-size: 11.5px; padding: 4px 10px; border-radius: 999px; color: var(--c-ink-500); }
.mock-tab.active { background: #fff; color: var(--c-primary-700); font-weight: 600; box-shadow: var(--shadow-soft); }
.mock-body { background: var(--surface-solid); border-radius: var(--r-6); border: 1px solid var(--hairline); padding: 16px; box-shadow: var(--shadow-soft); }
.kpi-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.kpi-tile { background: linear-gradient(180deg, var(--c-ink-50), #fff); border: 1px solid var(--hairline); border-radius: var(--r-4); padding: 12px 13px; }
.kpi-tile .lbl { font-size: 11px; color: var(--c-ink-500); }
.kpi-tile .val { font-family: var(--ff-display); font-size: 24px; font-weight: 680; letter-spacing: -0.02em; color: var(--c-ink-900); margin-top: 4px; }
.kpi-tile .delta { font-size: 11.5px; font-weight: 600; color: var(--c-success-600); margin-top: 2px; }
.kpi-tile .delta.down { color: var(--c-danger-500); }
.chart { margin-top: 14px; background: linear-gradient(180deg,#fff, var(--c-ink-50)); border: 1px solid var(--hairline); border-radius: var(--r-4); padding: 14px; }
.chart-head { display: flex; justify-content: space-between; font-size: 11.5px; color: var(--c-ink-500); margin-bottom: 12px; }
.bars { display: flex; align-items: flex-end; gap: 6px; height: 88px; }
.bars span { flex: 1; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, var(--c-primary-400), var(--c-primary-600)); opacity: 0.92; }
.bars span.hi { background: linear-gradient(180deg, var(--c-accent-400), var(--c-accent-600)); }
.mock-conv { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.bubble { max-width: 78%; padding: 9px 12px; border-radius: 12px; font-size: 12.5px; line-height: 1.5; }
.bubble.in { align-self: flex-start; background: var(--c-ink-100); color: var(--c-ink-800); border-bottom-left-radius: 4px; }
.bubble.ai { align-self: flex-end; color: #fff; background: var(--grad-brand); border-bottom-right-radius: 4px; box-shadow: var(--shadow-card); }
.bubble .tag { display:flex; align-items:center; gap:5px; width: fit-content; white-space: nowrap; font-size: 10px; opacity: .9; margin-bottom: 5px; font-weight: 600; }
.bubble .tag svg { flex: none; width: 12px; height: 12px; }

/* floating chips on the mock */
.float-chip {
  position: absolute; display: flex; align-items: center; gap: 9px;
  padding: 9px 13px; border-radius: var(--r-5); background: rgba(255,255,255,0.92);
  border: 1px solid var(--hairline-strong); box-shadow: var(--shadow-lift);
  backdrop-filter: blur(12px); font-size: 12.5px; font-weight: 500; color: var(--c-ink-800);
  animation: floaty 5s var(--ease-standard) infinite;
}
.float-chip .ic { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; color: #fff; flex: none; }
.float-chip .ic svg { width: 15px; height: 15px; }
.float-chip small { display: block; font-size: 10.5px; color: var(--c-ink-500); font-weight: 400; }
.float-chip.fc1 { top: 20px; right: -18px; animation-delay: 0s; }
.float-chip.fc1 .ic { background: linear-gradient(135deg, var(--c-success-500), var(--c-success-700)); }
.float-chip.fc2 { bottom: -18px; left: -34px; animation-delay: 1.4s; }
.float-chip.fc2 .ic { background: var(--grad-brand); }
@keyframes floaty { 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-9px);} }

/* ============== TRUST / LOGOS ============== */
.trust { padding: 8px 0 44px; }
.trust-label { text-align: center; font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-ink-400); margin-bottom: 18px; }
.trust-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px; }
.trust-chip {
  display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 16px; border-radius: var(--r-pill);
  background: var(--surface-1); border: 1px solid var(--hairline); box-shadow: var(--shadow-soft);
  font-size: 13px; font-weight: 600; color: var(--c-ink-600); backdrop-filter: blur(8px);
}
.trust-chip svg { width: 15px; height: 15px; color: var(--c-primary-600); }

/* ============== METRICS BAND ============== */
.metrics { padding: 0; margin: 0; }
.metrics-card {
  display: grid; grid-template-columns: repeat(4,1fr);
  border-radius: var(--r-7); overflow: hidden;
  background: var(--surface-solid); border: 1px solid var(--hairline);
  box-shadow: var(--shadow-card);
}
.metric { padding: 30px 28px; border-right: 1px solid var(--hairline); }
.metric:last-child { border-right: none; }
.metric .num { font-family: var(--ff-display); font-size: clamp(30px,3.4vw,42px); font-weight: 700; letter-spacing: -0.03em; color: var(--c-ink-900); line-height: 1; }
.metric .num .grad-text { display: inline; }
.metric .cap { font-size: 13.5px; color: var(--c-ink-500); margin-top: 10px; }

/* ============== FEATURE BENTO ============== */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.card {
  position: relative; background: var(--surface-solid); border: 1px solid var(--hairline);
  border-radius: var(--r-6); padding: 26px; box-shadow: var(--shadow-card); overflow: hidden;
  transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), border-color var(--dur-base);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: var(--hairline-strong); }
.card .ic {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; color: #fff;
  background: var(--grad-brand); box-shadow: 0 10px 22px -10px rgba(37,99,235,0.55); margin-bottom: 18px;
}
.card .ic svg { width: 22px; height: 22px; }
.card h3 { font-family: var(--ff-display); font-size: 19px; font-weight: 650; letter-spacing: -0.02em; color: var(--c-ink-900); margin: 0 0 8px; }
.card p { font-size: 14.5px; color: var(--c-ink-500); margin: 0; line-height: 1.6; }
.card .meta-list { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; gap: 7px; }
.card .meta-list li { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--c-ink-600); }
.card .meta-list svg { width: 15px; height: 15px; color: var(--c-success-500); flex: none; }
.col-3 { grid-column: span 3; } .col-2 { grid-column: span 2; } .col-4 { grid-column: span 4; }
.card.feature-hero { grid-column: span 6; display: grid; grid-template-columns: 1.1fr 1fr; gap: 30px; align-items: center; padding: 34px; }
.card.feature-hero .ic { width: 48px; height: 48px; }
.card.feature-hero h3 { font-size: 24px; }
.card.feature-hero p { font-size: 15.5px; }
.fh-visual { position: relative; height: 100%; min-height: 220px; border-radius: var(--r-5);
  background: radial-gradient(120% 100% at 0% 0%, hsl(var(--c-mesh-1)/0.7), transparent 60%),
              radial-gradient(120% 100% at 100% 100%, hsl(var(--c-mesh-2)/0.55), transparent 60%), var(--c-ink-50);
  border: 1px solid var(--hairline); overflow: hidden; }
.fh-visual .queue { position: absolute; inset: 18px; display: flex; flex-direction: column; gap: 9px; }
.q-item { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.85); border: 1px solid var(--hairline);
  border-radius: 10px; padding: 9px 11px; box-shadow: var(--shadow-soft); }
.q-item .av { width: 26px; height: 26px; border-radius: 8px; flex: none; background: var(--grad-brand); color: #fff; display: grid; place-items: center; font-size: 11px; font-weight: 700; }
.q-item .qt { flex: 1; min-width: 0; }
.q-item .qt b { font-size: 12.5px; color: var(--c-ink-800); font-weight: 600; display: block; }
.q-item .qt span { font-size: 11px; color: var(--c-ink-500); }
.q-badge { font-size: 10.5px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.q-badge.ai { color: var(--c-primary-700); background: var(--c-primary-50); }
.q-badge.sla { color: var(--c-warning-500); background: #fffbeb; }
.q-badge.ok { color: var(--c-success-600); background: var(--c-success-50); }

/* ============== WORKFLOW / STEPS ============== */
.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; counter-reset: step; }
.step { position: relative; background: var(--surface-solid); border: 1px solid var(--hairline); border-radius: var(--r-6); padding: 26px 24px; box-shadow: var(--shadow-card); }
.step .n { font-family: var(--ff-display); font-size: 13px; font-weight: 700; color: var(--c-primary-600); letter-spacing: 0.04em; }
.step .ic { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; margin: 14px 0 16px;
  background: var(--c-primary-50); color: var(--c-primary-600); border: 1px solid var(--c-primary-100); }
.step .ic svg { width: 20px; height: 20px; }
.step h4 { font-family: var(--ff-display); font-size: 17px; font-weight: 640; letter-spacing: -0.01em; color: var(--c-ink-900); margin: 0 0 7px; }
.step p { font-size: 14px; color: var(--c-ink-500); margin: 0; line-height: 1.6; }
.step .arrow { position: absolute; top: 38px; right: -13px; width: 26px; height: 26px; color: var(--c-ink-300); z-index: 2; }
.step:last-child .arrow { display: none; }

/* ============== CHANNELS ============== */
.channels-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.chan {
  display: flex; align-items: center; gap: 13px; padding: 18px;
  background: var(--surface-solid); border: 1px solid var(--hairline); border-radius: var(--r-5); box-shadow: var(--shadow-soft);
  transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base);
}
.chan:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.chan .logo { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; color: #fff; flex: none; }
.chan .logo svg { width: 22px; height: 22px; }
.chan .info b { display: block; font-size: 14.5px; font-weight: 600; color: var(--c-ink-800); }
.chan .info span { font-size: 12px; color: var(--c-ink-500); }
.chan .stat { margin-left: auto; font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: 999px; }
.chan .stat.live { color: var(--c-success-600); background: var(--c-success-50); }
.chan .stat.soon { color: var(--c-ink-500); background: var(--c-ink-100); }

/* ============== ANALYTICS SPLIT ============== */
.split { display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.split.rev { grid-template-columns: 1.05fr 1fr; }
.split-copy h2 { font-family: var(--ff-display); font-weight: 680; letter-spacing: -0.025em; color: var(--c-ink-900); font-size: clamp(26px,3.4vw,36px); line-height: 1.14; margin: 16px 0 14px; }
.split-copy p { font-size: 16px; color: var(--c-ink-500); line-height: 1.65; margin: 0 0 22px; }
.tick-list { list-style: none; margin: 0 0 28px; padding: 0; display: flex; flex-direction: column; gap: 13px; }
.tick-list li { display: flex; gap: 11px; font-size: 15px; color: var(--c-ink-700); }
.tick-list .tk { width: 22px; height: 22px; border-radius: 7px; flex: none; display: grid; place-items: center; color: #fff; background: var(--grad-brand); margin-top: 1px; }
.tick-list .tk svg { width: 13px; height: 13px; }
.tick-list b { font-weight: 600; color: var(--c-ink-900); }

.panel {
  background: var(--surface-solid); border: 1px solid var(--hairline); border-radius: var(--r-7);
  box-shadow: var(--shadow-card); padding: 22px; position: relative; overflow: hidden;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.panel-head .t { font-family: var(--ff-display); font-weight: 640; font-size: 15px; color: var(--c-ink-900); }
.panel-head .pill { font-size: 11.5px; font-weight: 600; color: var(--c-success-600); background: var(--c-success-50); padding: 4px 10px; border-radius: 999px; }
.donut-row { display: flex; align-items: center; gap: 24px; }
.donut { width: 132px; height: 132px; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: conic-gradient(var(--c-primary-600) 0 63%, var(--c-accent-500) 63% 79%, var(--c-ink-200) 79% 100%); position: relative; }
.donut::after { content:""; position: absolute; inset: 17px; border-radius: 50%; background: #fff; box-shadow: var(--shadow-soft); }
.donut .center { position: relative; z-index: 2; text-align: center; }
.donut .center b { display: block; font-family: var(--ff-display); font-size: 26px; font-weight: 700; color: var(--c-ink-900); letter-spacing: -0.02em; }
.donut .center span { font-size: 11px; color: var(--c-ink-500); }
.legend { display: flex; flex-direction: column; gap: 12px; }
.legend .lg { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--c-ink-600); }
.legend .lg i { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.legend .lg b { color: var(--c-ink-900); font-family: var(--ff-display); }
.panel-foot { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--hairline); }
.panel-foot .st .v { font-family: var(--ff-display); font-size: 19px; font-weight: 680; color: var(--c-ink-900); }
.panel-foot .st .k { font-size: 11.5px; color: var(--c-ink-500); margin-top: 2px; }

/* ============== PRICING ============== */
.price-toggle { display: inline-flex; align-items: center; gap: 4px; padding: 4px; border-radius: 999px;
  background: var(--c-ink-100); border: 1px solid var(--hairline); margin: 0 auto 8px; }
.price-toggle button { border: none; background: transparent; cursor: pointer; font-family: var(--ff-sans);
  height: 34px; padding: 0 18px; border-radius: 999px; font-size: 13.5px; font-weight: 600; color: var(--c-ink-600); transition: all var(--dur-base); }
.price-toggle button.active { background: #fff; color: var(--c-ink-900); box-shadow: var(--shadow-soft); }
.price-toggle .save { font-size: 10.5px; color: var(--c-success-600); background: var(--c-success-50); padding: 1px 6px; border-radius: 999px; margin-left: 6px; }
.price-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; align-items: stretch; }
.plan {
  display: flex; flex-direction: column; background: var(--surface-solid); border: 1px solid var(--hairline);
  border-radius: var(--r-6); padding: 26px 22px; box-shadow: var(--shadow-card); position: relative;
  transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base);
}
.plan:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.plan.featured { border: 1px solid transparent; background:
  linear-gradient(#fff,#fff) padding-box, var(--grad-brand) border-box; box-shadow: var(--shadow-pop); }
.plan .tag-pop { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); font-size: 11.5px; font-weight: 600; color: #fff;
  background: var(--grad-brand); padding: 4px 13px; border-radius: 999px; box-shadow: var(--shadow-card); }
.plan .pname { font-family: var(--ff-display); font-size: 16px; font-weight: 650; color: var(--c-ink-900); }
.plan .pdesc { font-size: 12.5px; color: var(--c-ink-500); margin-top: 5px; min-height: 34px; line-height: 1.5; }
.plan .price { display: flex; align-items: baseline; gap: 3px; margin: 14px 0 2px; }
.plan .price .cur { font-size: 18px; font-weight: 600; color: var(--c-ink-800); }
.plan .price .amt { font-family: var(--ff-display); font-size: 38px; font-weight: 720; letter-spacing: -0.03em; color: var(--c-ink-900); }
.plan .price .per { font-size: 13px; color: var(--c-ink-500); }
.plan .price.contact .amt { font-size: 26px; }
.plan .quota { font-size: 12.5px; color: var(--c-ink-500); margin-bottom: 18px; }
.plan .quota b { color: var(--c-primary-700); }
.plan .pbtn { margin-bottom: 18px; }
.plan ul { list-style: none; margin: 18px 0 0; padding: 18px 0 0; border-top: 1px solid var(--hairline); display: flex; flex-direction: column; gap: 11px; }
.plan ul li { display: flex; align-items: flex-start; gap: 9px; font-size: 13.5px; color: var(--c-ink-700); }
.plan ul svg { width: 16px; height: 16px; color: var(--c-success-500); flex: none; margin-top: 1px; }
.price-note { text-align: center; font-size: 13px; color: var(--c-ink-500); margin-top: 22px; }

/* unified sales CTA strip */
.price-cta {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin-top: 26px;
  padding: 26px 30px; border-radius: var(--r-6);
  background:
    radial-gradient(120% 160% at 0% 0%, hsl(var(--c-mesh-1)/0.7), transparent 60%),
    radial-gradient(120% 160% at 100% 100%, hsl(var(--c-mesh-2)/0.55), transparent 60%),
    var(--surface-solid);
  border: 1px solid var(--hairline); box-shadow: var(--shadow-card);
}
.price-cta-copy { flex: 1; min-width: 240px; }
.price-cta-copy b { display: block; font-family: var(--ff-display); font-size: 19px; font-weight: 650; letter-spacing: -0.02em; color: var(--c-ink-900); margin-bottom: 5px; }
.price-cta-copy span { font-size: 14.5px; color: var(--c-ink-500); line-height: 1.6; }
.price-cta .btn { flex: none; }
@media (max-width: 560px) { .price-cta { padding: 22px; } .price-cta .btn { width: 100%; } }

/* ============== SECURITY ============== */
.sec-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.sec-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sec-badge { background: var(--surface-solid); border: 1px solid var(--hairline); border-radius: var(--r-5); padding: 20px; box-shadow: var(--shadow-soft); }
.sec-badge .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; color: var(--c-primary-600); background: var(--c-primary-50); border: 1px solid var(--c-primary-100); margin-bottom: 12px; }
.sec-badge .ic svg { width: 19px; height: 19px; }
.sec-badge b { display: block; font-size: 14.5px; color: var(--c-ink-900); font-weight: 640; }
.sec-badge span { font-size: 12.5px; color: var(--c-ink-500); }

/* ============== FAQ ============== */
.faq { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.qa { background: var(--surface-solid); border: 1px solid var(--hairline); border-radius: var(--r-5); box-shadow: var(--shadow-soft); overflow: hidden; transition: box-shadow var(--dur-base); }
.qa[open] { box-shadow: var(--shadow-card); }
.qa summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 22px; font-size: 15.5px; font-weight: 600; color: var(--c-ink-900); }
.qa summary::-webkit-details-marker { display: none; }
.qa summary .chev { width: 20px; height: 20px; color: var(--c-ink-400); flex: none; transition: transform var(--dur-base); }
.qa[open] summary .chev { transform: rotate(180deg); color: var(--c-primary-600); }
.qa .ans { padding: 0 22px 20px; font-size: 14.5px; color: var(--c-ink-600); line-height: 1.7; }

/* ============== CTA BAND ============== */
.cta-band { position: relative; border-radius: var(--r-7); overflow: hidden; padding: 60px; text-align: center;
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(124,58,237,0.9), transparent 55%),
    radial-gradient(120% 120% at 100% 100%, rgba(29,78,216,0.95), transparent 55%),
    linear-gradient(120deg, var(--c-primary-700), var(--c-primary-600));
  box-shadow: var(--shadow-pop); }
.cta-band::after { content:""; position: absolute; inset: 0; opacity: 0.4; background-image:
  radial-gradient(rgba(255,255,255,0.18) 1px, transparent 1px); background-size: 22px 22px; pointer-events: none; }
.cta-band h2 { position: relative; font-family: var(--ff-display); font-weight: 700; letter-spacing: -0.03em; color: #fff;
  font-size: clamp(28px,3.6vw,42px); line-height: 1.12; margin: 0 0 14px; }
.cta-band p { position: relative; font-size: 17px; color: rgba(255,255,255,0.86); margin: 0 auto 28px; max-width: 540px; }
.cta-band .actions { position: relative; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.cta-band .btn-light { color: var(--c-primary-700); background: #fff; }
.cta-band .btn-light:hover { transform: translateY(-2px); box-shadow: 0 26px 50px -18px rgba(0,0,0,0.4); }
.cta-band .btn-outline { color: #fff; background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.4); backdrop-filter: blur(8px); }
.cta-band .btn-outline:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }

/* ============== FOOTER ============== */
.footer { border-top: 1px solid var(--hairline); padding: 56px 0 32px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; }
.footer .brand-blurb { font-size: 13.5px; color: var(--c-ink-500); line-height: 1.65; max-width: 280px; margin: 16px 0 18px; }
.footer .social { display: flex; gap: 8px; }
.footer .social a { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: var(--c-ink-500);
  background: var(--surface-1); border: 1px solid var(--hairline); transition: all var(--dur-base); }
.footer .social a:hover { color: var(--c-primary-600); transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.footer .social svg { width: 17px; height: 17px; }
.fcol h5 { font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--c-ink-400); margin: 0 0 16px; font-weight: 600; }
.fcol a { display: block; font-size: 14px; color: var(--c-ink-600); padding: 6px 0; transition: color var(--dur-fast); }
.fcol a:hover { color: var(--c-primary-700); }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--hairline); font-size: 13px; color: var(--c-ink-500); }
.footer-bottom .links { display: flex; gap: 18px; }
.footer-bottom .links a:hover { color: var(--c-ink-800); }

/* ============== SCROLL REVEAL ============== */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity var(--dur-slow) var(--ease-standard), transform var(--dur-slow) var(--ease-standard); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } .float-chip, .status-pill .dot { animation: none; } html { scroll-behavior: auto; } }

/* ============== RESPONSIVE ============== */
@media (max-width: 1080px) {
  .bento { grid-template-columns: repeat(4,1fr); }
  .col-3 { grid-column: span 2; } .col-2 { grid-column: span 2; } .col-4 { grid-column: span 4; }
  .card.feature-hero { grid-column: span 4; }
  .steps, .channels-grid { grid-template-columns: repeat(2,1fr); }
  .step .arrow { display: none; }
}
@media (max-width: 880px) {
  section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-cta .login, .lang-switch { display: none; }
  .nav-burger { display: flex; }
  .hero { padding: 40px 0 56px; }
  .hero-grid, .split, .split.rev, .sec-wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy { max-width: none; }
  .mock { order: 2; }
  .float-chip { display: none; }
  .metrics-card { grid-template-columns: repeat(2,1fr); }
  .metric:nth-child(2) { border-right: none; }
  .metric { border-bottom: 1px solid var(--hairline); }
  .price-grid { grid-template-columns: repeat(2,1fr); }
  .bento { grid-template-columns: repeat(2,1fr); }
  .col-3,.col-2,.col-4,.card.feature-hero { grid-column: span 2; }
  .card.feature-hero { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .price-grid, .channels-grid, .steps, .bento, .sec-badges { grid-template-columns: 1fr; }
  .col-3,.col-2,.col-4,.card.feature-hero { grid-column: span 1; }
  .metrics-card { grid-template-columns: 1fr; }
  .metric { border-right: none; }
  .cta-band { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .float-chip { display: none; }
  .hero-actions .btn { flex: 1; }
}

/* mobile drawer */
.drawer { position: fixed; inset: 0; z-index: 90; visibility: hidden; pointer-events: none; }
.drawer.open { visibility: visible; pointer-events: auto; }
.drawer .scrim { position: absolute; inset: 0; background: rgba(11,18,32,0.4); opacity: 0; transition: opacity var(--dur-base); backdrop-filter: blur(2px); }
.drawer.open .scrim { opacity: 1; }
.drawer .sheet { position: absolute; top: 0; right: 0; width: min(86%, 340px); height: 100%; background: #fff;
  box-shadow: var(--shadow-lift); transform: translateX(100%); transition: transform var(--dur-base) var(--ease-standard); padding: 18px; display: flex; flex-direction: column; }
.drawer.open .sheet { transform: none; }
.drawer .sheet .top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.drawer .sheet .close { width: 38px; height: 38px; border: 1px solid var(--hairline); border-radius: 10px; background: var(--c-ink-50); display: grid; place-items: center; cursor: pointer; }
.drawer .sheet nav { display: flex; flex-direction: column; gap: 2px; margin: 10px 0; }
.drawer .sheet nav a { padding: 12px 12px; border-radius: 10px; font-size: 15px; font-weight: 500; color: var(--c-ink-700); }
.drawer .sheet nav a:hover { background: var(--c-ink-100); }
.drawer .sheet .d-cta { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }

/* footer contact email */
.footer-contact { margin: 16px 0 18px; }
.footer-contact-label { display: block; font-size: 12px; letter-spacing: 0.03em; color: var(--c-ink-400); margin-bottom: 6px; }
.footer-mail { position: relative; display: inline-flex; align-items: center; gap: 8px; font-family: var(--ff-mono); font-size: 14px; font-weight: 500;
  color: var(--c-ink-800); padding: 8px 14px; border: 1px solid var(--hairline-strong); border-radius: var(--r-pill);
  background: var(--c-ink-50); transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast); cursor: pointer; }
.footer-mail svg { width: 16px; height: 16px; color: var(--c-primary-600); transition: color var(--dur-fast); }
.footer-mail:hover { color: var(--c-primary-700); border-color: var(--c-primary-300); background: var(--c-primary-50); }
.footer-mail.copied { color: var(--c-success-700); border-color: var(--c-success-500); background: var(--c-success-50); }
.footer-mail.copied svg { color: var(--c-success-600); }
.footer-mail::after { content: attr(data-copied); position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%) translateY(4px);
  background: var(--c-ink-900); color: #fff; font-family: var(--ff-sans); font-size: 12px; font-weight: 600; padding: 5px 10px;
  border-radius: var(--r-3); white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity var(--dur-fast), transform var(--dur-fast); }
.footer-mail.copied::after { opacity: 1; transform: translateX(-50%) translateY(0); }

/* contact modal */
.contact-modal { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center; padding: 24px; }
.contact-modal.open { display: flex; }
.cm-scrim { position: absolute; inset: 0; background: rgba(11,18,32,0.5); backdrop-filter: blur(4px); animation: cmFade var(--dur-base) var(--ease-standard); }
.cm-card { position: relative; width: min(420px, 100%); background: var(--surface-solid); border: 1px solid var(--hairline);
  border-radius: var(--r-6); box-shadow: var(--shadow-pop); padding: 34px 28px 30px; text-align: center; animation: cmPop var(--dur-base) var(--ease-standard); }
@keyframes cmFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes cmPop { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: none; } }
.cm-x { position: absolute; top: 14px; right: 14px; width: 32px; height: 32px; display: grid; place-items: center; border: none;
  background: transparent; color: var(--c-ink-400); border-radius: var(--r-3); cursor: pointer; transition: color var(--dur-fast), background var(--dur-fast); }
.cm-x:hover { background: var(--c-ink-100); color: var(--c-ink-900); }
.cm-x svg { width: 18px; height: 18px; }
.cm-ic { width: 56px; height: 56px; margin: 0 auto 16px; display: grid; place-items: center; border-radius: var(--r-5); background: var(--c-primary-50); color: var(--c-primary-600); }
.cm-ic svg { width: 26px; height: 26px; }
.cm-card h3 { font-family: var(--ff-display); font-size: 20px; font-weight: 600; color: var(--c-ink-900); margin: 0 0 8px; }
.cm-sub { font-size: 14px; color: var(--c-ink-500); line-height: 1.6; margin: 0 0 22px; }
.cm-mail { display: flex; align-items: center; gap: 10px; justify-content: space-between; padding: 8px 8px 8px 16px;
  border: 1px solid var(--hairline-strong); border-radius: var(--r-pill); background: var(--c-ink-50); }
.cm-mail-text { font-family: var(--ff-mono); font-size: 15px; color: var(--c-ink-900); user-select: all; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cm-copy { flex: none; border: none; cursor: pointer; font-size: 13px; font-weight: 600; color: #fff; background: var(--grad-brand);
  padding: 9px 18px; border-radius: var(--r-pill); transition: opacity var(--dur-fast), background var(--dur-fast); }
.cm-copy:hover { opacity: 0.92; }
.cm-copy.done { background: var(--c-success-600); }