/* ==========================================================================
   AiSolution.my — Enterprise AI for Manufacturing
   ========================================================================== */

:root {
  --bg: #070b1a;
  --bg-2: #0b1126;
  --surface: #0f1730;
  --surface-2: #141e3d;
  --line: rgba(148, 163, 255, 0.14);
  --line-strong: rgba(148, 163, 255, 0.28);
  --text: #e8ecff;
  --text-2: #a9b2d6;
  --text-3: #7480aa;
  --brand: #6d7cff;
  --brand-2: #22d3ee;
  --brand-3: #a78bfa;
  --ok: #34d399;
  --grad: linear-gradient(120deg, #6d7cff 0%, #22d3ee 55%, #a78bfa 100%);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.65);
  --max: 1200px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1rem; color: var(--text-2); }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 1rem; letter-spacing: -0.02em; color: var(--text); }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
ul { padding-left: 1.2rem; }
:focus-visible { outline: 2px solid var(--brand-2); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 0; position: relative; }
.section--alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head p { font-size: 1.1rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--brand-2); margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 18px; height: 2px; background: var(--grad); border-radius: 2px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 999; background: var(--brand); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px; font-weight: 600; font-size: 0.98rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
  font-family: inherit; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--grad); color: #050816; box-shadow: 0 10px 30px -10px rgba(34, 211, 238, .55); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(34, 211, 238, .7); }
.btn--ghost { border-color: var(--line-strong); color: var(--text); background: rgba(255,255,255,.03); }
.btn--ghost:hover { border-color: var(--brand-2); background: rgba(34,211,238,.08); }
.btn--sm { padding: 10px 18px; font-size: .9rem; }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled { background: rgba(7, 11, 26, .78); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; }
.logo svg { width: 36px; height: 36px; }
.logo small { display: block; font-family: var(--font); font-weight: 500; font-size: .66rem; color: var(--text-3); letter-spacing: .08em; text-transform: uppercase; margin-top: -2px; }
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--text-2); font-size: .95rem; font-weight: 500; transition: color .2s; white-space: nowrap; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong); color: var(--text); border-radius: 10px; width: 44px; height: 44px; cursor: pointer; }
.nav-toggle svg { width: 22px; height: 22px; margin: auto; }

@media (max-width: 1100px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav-links {
    position: fixed; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(7, 11, 26, .97); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line);
    padding: 8px 16px 20px; transform: translateY(-10px); opacity: 0; pointer-events: none; transition: .25s;
  }
  .nav-links.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { display: block; padding: 14px 8px; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .nav-cta .btn--ghost { display: none; }
}
@media (max-width: 520px) { .nav-cta .btn--primary { display: none; } }

/* Hero */
.hero { position: relative; padding: 170px 0 110px; overflow: hidden; isolation: isolate; }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .7; }
.hero::before {
  content: ""; position: absolute; z-index: -2; inset: -20% -10% auto -10%; height: 900px;
  background:
    radial-gradient(600px 380px at 20% 20%, rgba(109,124,255,.32), transparent 70%),
    radial-gradient(520px 360px at 85% 10%, rgba(34,211,238,.22), transparent 70%),
    radial-gradient(500px 300px at 60% 80%, rgba(167,139,250,.18), transparent 70%);
}
.hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 160px; background: linear-gradient(transparent, var(--bg)); z-index: -1; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px 6px 6px;
  border: 1px solid var(--line-strong); border-radius: 999px; background: rgba(255,255,255,.04);
  font-size: .85rem; color: var(--text-2); margin-bottom: 26px;
}
.hero-badge b { white-space: nowrap; background: var(--grad); color: #050816; padding: 3px 10px; border-radius: 999px; font-size: .74rem; letter-spacing: .04em; }
.hero p.lead { font-size: 1.2rem; max-width: 600px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 28px; color: var(--text-3); font-size: .9rem; }
.hero-proof span { display: inline-flex; align-items: center; gap: 8px; }
.hero-proof svg { width: 18px; height: 18px; color: var(--ok); }

.hero-visual { position: relative; }
.dash {
  background: linear-gradient(180deg, rgba(20,30,61,.9), rgba(15,23,48,.9));
  border: 1px solid var(--line-strong); border-radius: 22px; padding: 22px; box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.dash-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.dash-top h4 { margin: 0; font-size: .95rem; font-family: var(--font); font-weight: 600; }
.live { display: inline-flex; align-items: center; gap: 6px; font-size: .75rem; color: var(--ok); font-weight: 600; }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(52,211,153,.7); animation: pulse 1.8s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(52,211,153,0); } 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); } }
.cam {
  position: relative; height: 170px; border-radius: 14px; overflow: hidden; margin-bottom: 16px;
  background: repeating-linear-gradient(90deg, rgba(148,163,255,.06) 0 1px, transparent 1px 28px),
              repeating-linear-gradient(0deg, rgba(148,163,255,.06) 0 1px, transparent 1px 28px),
              linear-gradient(135deg, #0c1531, #131f45);
  border: 1px solid var(--line);
}
.cam .part { position: absolute; width: 70px; height: 70px; border-radius: 14px; background: linear-gradient(135deg, #3a4777, #222c52); top: 50px; animation: belt 6s linear infinite; }
.cam .part:nth-child(2) { animation-delay: -2s; }
.cam .part:nth-child(3) { animation-delay: -4s; }
.cam .part::after { content: ""; position: absolute; inset: -8px; border: 2px solid var(--ok); border-radius: 18px; }
.cam .part.bad::after { border-color: #f87171; }
.cam .part.bad::before { content: "DEFECT 97.4%"; position: absolute; top: -30px; left: -8px; font-size: .62rem; font-weight: 700; color: #fff; background: #ef4444; padding: 2px 6px; border-radius: 4px; white-space: nowrap; }
.cam .part:not(.bad)::before { content: "OK 99.1%"; position: absolute; top: -30px; left: -8px; font-size: .62rem; font-weight: 700; color: #052e1f; background: var(--ok); padding: 2px 6px; border-radius: 4px; }
.cam .scan { position: absolute; top: 0; bottom: 0; width: 2px; left: 50%; background: var(--brand-2); box-shadow: 0 0 22px 4px rgba(34,211,238,.6); }
@keyframes belt { from { left: -90px; } to { left: 110%; } }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi { background: rgba(255,255,255,.03); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.kpi small { display: block; color: var(--text-3); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
.kpi strong { font-family: var(--font-display); font-size: 1.35rem; }
.kpi em { font-style: normal; font-size: .72rem; color: var(--ok); margin-left: 4px; }
.spark { margin-top: 14px; height: 60px; }
.float-card {
  position: absolute; display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 14px;
  background: rgba(15,23,48,.92); border: 1px solid var(--line-strong); box-shadow: var(--shadow); font-size: .82rem;
  animation: bob 5s ease-in-out infinite;
}
.float-card .ic { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: rgba(34,211,238,.14); color: var(--brand-2); }
.float-card .ic svg { width: 18px; height: 18px; }
.float-card b { display: block; color: var(--text); font-size: .88rem; }
.float-card span { color: var(--text-3); }
.float-1 { left: -40px; bottom: 40px; }
.float-2 { right: -20px; top: -62px; animation-delay: -2.5s; }
@keyframes bob { 50% { transform: translateY(-10px); } }

@media (max-width: 960px) {
  .hero { padding: 130px 0 70px; }
  .hero-grid { grid-template-columns: 1fr; }
  .float-1 { left: 8px; bottom: -24px; }
  .float-2 { right: 8px; top: -50px; }
  .hero-visual { margin-top: 50px; }
}

/* Trust bar */
.trust { padding: 34px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.trust-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.trust p { margin: 0; font-size: .85rem; color: var(--text-3); text-transform: uppercase; letter-spacing: .12em; font-weight: 600; }
.trust ul { display: flex; flex-wrap: wrap; gap: 14px 34px; list-style: none; margin: 0; padding: 0; color: var(--text-2); font-weight: 600; font-family: var(--font-display); }
.trust li { display: inline-flex; align-items: center; gap: 8px; opacity: .85; }
.trust li svg { width: 20px; height: 20px; color: var(--brand-3); }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { padding: 30px 26px; border-radius: var(--radius); border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.035), transparent); }
.stat strong { display: block; font-family: var(--font-display); font-size: clamp(2.2rem, 4vw, 3rem); line-height: 1; margin-bottom: 10px; }
.stat p { margin: 0; font-size: .95rem; }
.stat-note { text-align: center; font-size: .8rem; color: var(--text-3); margin-top: 22px; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stats { grid-template-columns: 1fr; } }

/* Problem/solution split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.pain-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.pain-list li { display: flex; gap: 14px; padding: 18px 20px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--surface); }
.pain-list svg { flex: none; width: 22px; height: 22px; color: #f87171; margin-top: 3px; }
.pain-list li.good svg { color: var(--ok); }
.pain-list b { display: block; color: var(--text); }
.pain-list span { color: var(--text-2); font-size: .95rem; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 40px; } }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative; padding: 32px 28px; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--line); transition: transform .25s, border-color .25s, background .25s; overflow: hidden;
}
.card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--grad); opacity: 0; transition: opacity .25s; }
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); background: var(--surface-2); }
.card:hover::before { opacity: 1; }
.card .icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 22px; background: linear-gradient(135deg, rgba(109,124,255,.22), rgba(34,211,238,.14)); border: 1px solid var(--line-strong); color: var(--brand-2); }
.card .icon svg { width: 26px; height: 26px; }
.card p { font-size: .97rem; }
.card ul { margin: 0 0 18px; padding: 0; list-style: none; display: grid; gap: 6px; }
.card ul li { font-size: .9rem; color: var(--text-2); display: flex; gap: 8px; }
.card ul li::before { content: "→"; color: var(--brand-2); }
.card .outcome { display: inline-block; font-size: .8rem; font-weight: 600; color: var(--ok); background: rgba(52,211,153,.1); border: 1px solid rgba(52,211,153,.25); padding: 4px 10px; border-radius: 999px; }
.card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-weight: 600; font-size: .92rem; color: var(--brand-2); }
.card .more:hover { gap: 10px; }
@media (max-width: 1000px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cards { grid-template-columns: 1fr; } }

/* Industries */
.chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.chip { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); font-weight: 500; transition: .2s; }
.chip:hover { border-color: var(--brand-2); background: var(--surface-2); }
.chip svg { width: 20px; height: 20px; color: var(--brand-2); }

/* Process */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; position: relative; }
.step { position: relative; padding: 30px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: inline-block; font-family: var(--font-display); font-weight: 700; font-size: .9rem;
  padding: 6px 12px; border-radius: 999px; background: rgba(109,124,255,.15); color: var(--brand); margin-bottom: 18px;
}
.step .dur { display: block; font-size: .8rem; color: var(--brand-2); font-weight: 600; margin-bottom: 8px; text-transform: uppercase; letter-spacing: .08em; }
.step p { font-size: .94rem; margin: 0; }
@media (max-width: 1000px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ROI calculator */
.roi { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch; }
.roi-form, .roi-out { padding: 34px; border-radius: 22px; border: 1px solid var(--line-strong); background: var(--surface); }
.roi-out { background: linear-gradient(160deg, rgba(109,124,255,.18), rgba(34,211,238,.08) 60%, var(--surface)); display: flex; flex-direction: column; }
.field { margin-bottom: 22px; }
.field label { display: flex; justify-content: space-between; font-weight: 500; font-size: .95rem; margin-bottom: 10px; color: var(--text); }
.field label output { font-family: var(--font-display); color: var(--brand-2); font-weight: 600; }
input[type="range"] { width: 100%; accent-color: var(--brand-2); height: 6px; cursor: pointer; }
.roi-out .big { font-family: var(--font-display); font-size: clamp(2.4rem, 5vw, 3.4rem); font-weight: 700; line-height: 1; margin: 8px 0 6px; }
.roi-out dl { display: grid; grid-template-columns: 1fr auto; gap: 12px 16px; margin: 26px 0; padding-top: 22px; border-top: 1px solid var(--line-strong); }
.roi-out dt { color: var(--text-2); font-size: .95rem; }
.roi-out dd { margin: 0; font-weight: 600; font-family: var(--font-display); text-align: right; }
.roi-out .fine { font-size: .78rem; color: var(--text-3); margin-top: auto; }
@media (max-width: 900px) { .roi { grid-template-columns: 1fr; } .roi-form, .roi-out { padding: 26px 22px; } }

/* Why */
.why { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.why-item { display: flex; gap: 18px; padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.why-item .icon { flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: rgba(167,139,250,.14); color: var(--brand-3); }
.why-item .icon svg { width: 22px; height: 22px; }
.why-item h3 { font-size: 1.08rem; margin-bottom: 6px; }
.why-item p { margin: 0; font-size: .95rem; }
@media (max-width: 760px) { .why { grid-template-columns: 1fr; } }

/* Parent brand band */
.parent {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center;
  padding: 50px; border-radius: 26px; border: 1px solid var(--line-strong);
  background: radial-gradient(500px 260px at 90% 0%, rgba(34,211,238,.18), transparent 70%), linear-gradient(135deg, #111a3a, #0c1330);
}
.parent ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.parent li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-2); }
.parent li svg { flex: none; width: 22px; height: 22px; color: var(--brand-3); margin-top: 2px; }
.parent li b { color: var(--text); }
@media (max-width: 900px) { .parent { grid-template-columns: 1fr; padding: 32px 24px; } }

/* FAQ */
.faq { max-width: 860px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); transition: border-color .2s; }
.faq details[open] { border-color: var(--line-strong); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 24px; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; line-height: 1; color: var(--brand-2); transition: transform .2s; flex: none; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 24px 20px; }
.faq details p:last-child { margin: 0; }

/* CTA & contact */
.cta-band { text-align: center; padding: 70px 40px; border-radius: 28px; border: 1px solid var(--line-strong); background: radial-gradient(600px 300px at 50% 0%, rgba(109,124,255,.35), transparent 70%), var(--surface); }
.cta-band p { max-width: 620px; margin: 0 auto 30px; font-size: 1.1rem; }
.cta-band .hero-actions { justify-content: center; margin: 0; }

.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; }
.contact-info { display: grid; gap: 14px; align-content: start; }
.contact-line { display: flex; gap: 14px; align-items: center; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); transition: border-color .2s; }
.contact-line:hover { border-color: var(--brand-2); }
.contact-line .icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: rgba(34,211,238,.12); color: var(--brand-2); flex: none; }
.contact-line .icon svg { width: 20px; height: 20px; }
.contact-line small { display: block; color: var(--text-3); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.contact-line b { font-weight: 600; word-break: break-word; }
form.lead { padding: 34px; border-radius: 22px; border: 1px solid var(--line-strong); background: var(--surface); display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
form.lead .full { grid-column: 1 / -1; }
form.lead label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: 6px; color: var(--text-2); }
form.lead input, form.lead select, form.lead textarea {
  width: 100%; padding: 13px 14px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--bg-2);
  color: var(--text); font: inherit; font-size: .95rem; transition: border-color .2s;
}
form.lead textarea { min-height: 110px; resize: vertical; }
form.lead input:focus, form.lead select:focus, form.lead textarea:focus { outline: none; border-color: var(--brand-2); }
form.lead .actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
form.lead .note { font-size: .8rem; color: var(--text-3); margin: 0; }
@media (max-width: 900px) { .contact { grid-template-columns: 1fr; } }
@media (max-width: 560px) { form.lead { grid-template-columns: 1fr; padding: 24px 20px; } .cta-band { padding: 50px 22px; } }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 70px 0 30px; background: var(--bg-2); margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-grid h4 { font-family: var(--font); font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-3); margin-bottom: 16px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-grid a { color: var(--text-2); font-size: .95rem; transition: color .2s; }
.footer-grid a:hover { color: var(--text); }
.footer-grid p { font-size: .93rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-top: 26px; border-top: 1px solid var(--line); font-size: .85rem; color: var(--text-3); }
.footer-bottom a { color: var(--text-2); }
.footer-bottom a:hover { color: var(--brand-2); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* WhatsApp float */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 90; width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center; background: #25d366; color: #fff; box-shadow: 0 12px 30px -8px rgba(37,211,102,.6); transition: transform .2s;
}
.wa-float:hover { transform: scale(1.07); }
.wa-float svg { width: 30px; height: 30px; }

/* Sub-page hero & article */
.page-hero { padding: 160px 0 70px; position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: -30% -10% auto; height: 700px; z-index: -1; background: radial-gradient(560px 320px at 30% 30%, rgba(109,124,255,.28), transparent 70%), radial-gradient(500px 300px at 80% 20%, rgba(34,211,238,.18), transparent 70%); }
.page-hero p.lead { font-size: 1.18rem; max-width: 760px; }
.crumbs { font-size: .85rem; color: var(--text-3); margin-bottom: 20px; }
.crumbs a:hover { color: var(--brand-2); }
.crumbs span { margin: 0 8px; }

.solution-block { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; padding: 60px 0; border-top: 1px solid var(--line); scroll-margin-top: 90px; }
.solution-block:first-of-type { border-top: 0; }
.solution-block .icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(109,124,255,.22), rgba(34,211,238,.14)); border: 1px solid var(--line-strong); color: var(--brand-2); margin-bottom: 20px; }
.solution-block .icon svg { width: 28px; height: 28px; }
.spec { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 26px; }
.spec h4 { font-family: var(--font); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-3); margin: 0 0 12px; }
.spec ul { margin: 0 0 22px; padding: 0; list-style: none; display: grid; gap: 8px; }
.spec ul:last-child { margin-bottom: 0; }
.spec li { display: flex; gap: 10px; color: var(--text-2); font-size: .95rem; }
.spec li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-2); margin-top: 10px; }
@media (max-width: 900px) { .solution-block { grid-template-columns: 1fr; gap: 28px; } }

.article { display: grid; grid-template-columns: 240px 1fr; gap: 60px; align-items: start; }
.toc { position: sticky; top: 100px; font-size: .9rem; }
.toc h4 { font-family: var(--font); font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-3); }
.toc ol { padding-left: 1.1rem; margin: 0; display: grid; gap: 8px; color: var(--text-3); }
.toc a { color: var(--text-2); }
.toc a:hover { color: var(--brand-2); }
.prose { max-width: 760px; }
.prose h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin-top: 56px; scroll-margin-top: 100px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 30px; }
.prose p, .prose li { font-size: 1.05rem; color: var(--text-2); }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); }
.prose a { color: var(--brand-2); text-decoration: underline; text-underline-offset: 3px; }
.callout { border: 1px solid var(--line-strong); border-left: 3px solid var(--brand-2); border-radius: 12px; padding: 20px 22px; background: var(--surface); margin: 26px 0; }
.callout p:last-child { margin: 0; }
.table-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 560px; }
th, td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; color: var(--text); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; }
td { color: var(--text-2); }
tr:last-child td { border-bottom: 0; }
.checklist { list-style: none; padding: 0; }
.checklist li { display: flex; gap: 12px; }
.checklist li::before { content: "✓"; color: var(--ok); font-weight: 700; flex: none; }
@media (max-width: 960px) { .article { grid-template-columns: 1fr; gap: 30px; } .toc { position: static; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); } }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 80px 0; }
  .section-head { margin-bottom: 40px; }
}

/* ==========================================================================
   Boss-friendly sections: pain points, upgrade path, service catalogue
   ========================================================================== */
.pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pain { padding: 28px 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; }
.pain q { display: block; font-family: var(--font-display); font-size: 1.12rem; font-weight: 600; color: var(--text); quotes: "“" "”"; margin-bottom: 16px; line-height: 1.4; }
.pain .ans { margin-top: auto; padding-top: 16px; border-top: 1px dashed var(--line-strong); font-size: .95rem; color: var(--text-2); }
.pain .ans b { display: block; color: var(--ok); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 6px; }
@media (max-width: 1000px) { .pains { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .pains { grid-template-columns: 1fr; } }

.flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 18px; align-items: center; margin-bottom: 50px; }
.flow-col { padding: 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); height: 100%; }
.flow-col h3 { font-size: .82rem; font-family: var(--font); text-transform: uppercase; letter-spacing: .12em; color: var(--text-3); margin-bottom: 14px; }
.flow-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.flow-col li { padding: 10px 14px; border-radius: 10px; background: rgba(255,255,255,.04); border: 1px solid var(--line); font-size: .93rem; color: var(--text); }
.flow-col.mid { border-color: var(--brand-2); background: linear-gradient(160deg, rgba(109,124,255,.2), rgba(34,211,238,.1)); text-align: center; display: flex; flex-direction: column; justify-content: center; }
.flow-col.mid h3 { color: var(--brand-2); }
.flow-col.mid strong { font-family: var(--font-display); font-size: 1.3rem; display: block; margin-bottom: 8px; }
.flow-col.mid p { margin: 0; font-size: .92rem; }
.flow-col.out li { border-color: rgba(52,211,153,.3); }
.flow-arrow { color: var(--brand-2); font-size: 1.8rem; font-weight: 700; text-align: center; }
@media (max-width: 900px) { .flow { grid-template-columns: 1fr; } .flow-arrow { transform: rotate(90deg); } }

.paths { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 40px; }
.path { padding: 30px 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); position: relative; }
.path .tag { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; margin-bottom: 16px; background: rgba(52,211,153,.12); color: var(--ok); }
.path:nth-child(2) .tag { background: rgba(34,211,238,.12); color: var(--brand-2); }
.path:nth-child(3) .tag { background: rgba(167,139,250,.14); color: var(--brand-3); }
.path p { font-size: .96rem; }
.path small { display: block; color: var(--text-3); font-size: .85rem; margin-top: 10px; }
@media (max-width: 900px) { .paths { grid-template-columns: 1fr; } }

.promise { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.promise div { padding: 18px; border-radius: 14px; border: 1px solid rgba(52,211,153,.25); background: rgba(52,211,153,.06); font-size: .9rem; color: var(--text-2); }
.promise b { display: block; color: var(--text); margin-bottom: 4px; font-size: .96rem; }
@media (max-width: 1000px) { .promise { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .promise { grid-template-columns: 1fr; } }

.cats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat { padding: 26px 22px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.cat:hover { border-color: var(--brand-2); transform: translateY(-3px); }
.cat .icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 16px; background: linear-gradient(135deg, rgba(109,124,255,.22), rgba(34,211,238,.14)); color: var(--brand-2); }
.cat .icon svg { width: 22px; height: 22px; }
.cat h3 { font-size: 1.08rem; margin-bottom: 12px; }
.cat ul { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 7px; }
.cat li { font-size: .88rem; color: var(--text-2); display: flex; gap: 8px; line-height: 1.45; }
.cat li::before { content: "✓"; color: var(--ok); font-weight: 700; flex: none; }
.cat .more { margin-top: auto; font-size: .88rem; font-weight: 600; color: var(--brand-2); }
@media (max-width: 1100px) { .cats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cats { grid-template-columns: 1fr; } }

/* Service catalogue page */
.cat-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.cat-nav a { padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line-strong); font-size: .88rem; color: var(--text-2); background: rgba(255,255,255,.03); }
.cat-nav a:hover { border-color: var(--brand-2); color: var(--text); }
.svc-group { padding: 60px 0; border-top: 1px solid var(--line); scroll-margin-top: 80px; }
.svc-group:first-child { border-top: 0; padding-top: 20px; }
.svc-head { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 30px; max-width: 860px; }
.svc-head .icon { flex: none; width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(109,124,255,.22), rgba(34,211,238,.14)); border: 1px solid var(--line-strong); color: var(--brand-2); }
.svc-head .icon svg { width: 28px; height: 28px; }
.svc-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 8px; }
.svc-head p { margin: 0; font-size: 1.05rem; }
.projects { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.project { padding: 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); scroll-margin-top: 90px; }
.project h3 { font-size: 1.12rem; margin-bottom: 14px; display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.project h3 .badge { font-family: var(--font); font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; background: rgba(52,211,153,.12); color: var(--ok); }
.project dl { margin: 0; display: grid; gap: 10px; }
.project dt { font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); }
.project dt.p { color: #f87171; }
.project dt.r { color: var(--ok); }
.project dd { margin: 0 0 4px; font-size: .95rem; color: var(--text-2); }
@media (max-width: 860px) { .projects { grid-template-columns: 1fr; } }

/* Chinese pages */
html[lang^="zh"] { --font: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; --font-display: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; }
html[lang^="zh"] h1, html[lang^="zh"] h2, html[lang^="zh"] h3 { letter-spacing: 0; line-height: 1.3; }
html[lang^="zh"] body { line-height: 1.8; }
.lang-switch { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px !important; border: 1px solid var(--line-strong); border-radius: 999px; }
@media (max-width: 1100px) { .lang-switch { display: block; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; padding: 14px 8px !important; } }
html[lang^="zh"] h1 { font-size: clamp(2.1rem, 4.8vw, 3.6rem); }
.article > * { min-width: 0; }