/* ===== Base ===== */
:root {
  --orange: #f97316;
  --orange-dark: #ea580c;
  --orange-soft: #fff3e9;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { text-decoration: none; color: inherit; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; font-weight: 600; border-radius: 999px;
  padding: 12px 22px; cursor: pointer; border: 1.5px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  font-size: 15px; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--orange); color: #fff; box-shadow: 0 8px 20px rgba(249,115,22,.35); }
.btn-primary:hover { background: var(--orange-dark); }
.btn-ghost { background: rgba(255,255,255,.85); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: #fff; }
.btn-outline { background: #fff; color: var(--orange-dark); border-color: var(--orange); }
.btn-outline:hover { background: var(--orange-soft); }
.btn-lg { padding: 15px 28px; font-size: 16px; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-block { width: 100%; }

.text-accent { color: var(--orange); }

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 22px; }
.logo-mark { font-size: 24px; }
.logo-accent { color: var(--orange); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-weight: 500; color: var(--ink-2); transition: color .2s; }
.nav-links a:hover { color: var(--orange); }
.nav-cta { color: #fff !important; }
.nav-cta:hover { color: #fff !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; }
.hamburger span { width: 26px; height: 3px; background: var(--ink); border-radius: 3px; transition: .3s; }

/* ===== Hero ===== */
.hero { padding: 70px 0 50px; background: radial-gradient(1200px 500px at 80% -10%, var(--orange-soft), transparent); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; }
.badge {
  display: inline-block; background: #fff; border: 1px solid var(--line);
  color: var(--ink-2); font-size: 13px; font-weight: 600; padding: 7px 14px; border-radius: 999px;
  margin-bottom: 20px; box-shadow: var(--shadow);
}
.hero h1 { font-size: 46px; font-weight: 900; line-height: 1.1; letter-spacing: -.02em; }
.hero-sub { color: var(--muted); font-size: 18px; margin: 20px 0 28px; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; margin-top: 42px; flex-wrap: wrap; }
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 26px; font-weight: 800; color: var(--ink); }
.hero-stats span { font-size: 13px; color: var(--muted); }

.hero-media { position: relative; }
.hero-card { border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--line); }
.hero-card img { width: 100%; height: 480px; object-fit: cover; }
.float-badge {
  position: absolute; background: #fff; border: 1px solid var(--line);
  padding: 9px 14px; border-radius: 12px; font-size: 14px; font-weight: 600;
  box-shadow: var(--shadow);
}
.fb-1 { top: 30px; left: -20px; }
.fb-2 { bottom: 30px; right: -16px; }

/* ===== Trust Strip ===== */
.trust-strip { background: var(--ink); color: #fff; }
.trust-inner { display: flex; align-items: center; gap: 26px; padding: 16px 24px; flex-wrap: wrap; font-size: 14px; opacity: .9; }
.trust-inner span:first-child { font-weight: 600; opacity: 1; }

/* ===== Sections ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 50px; }
.eyebrow { color: var(--orange); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; }
.section-head h2 { font-size: 36px; font-weight: 800; margin: 10px 0 14px; letter-spacing: -.02em; }
.section-head p { color: var(--muted); font-size: 17px; }

/* ===== Product Grid ===== */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-img { height: 220px; overflow: hidden; background: var(--bg-alt); }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .product-img img { transform: scale(1.06); }
.product-body { padding: 22px; }
.product-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.product-body p { color: var(--muted); font-size: 14.5px; margin-bottom: 14px; }
.spec-mini { list-style: none; display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.spec-mini li { font-size: 13.5px; color: var(--ink-2); }

/* ===== Features ===== */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow); transition: transform .2s;
}
.feature:hover { transform: translateY(-4px); }
.feature-icon { font-size: 34px; margin-bottom: 14px; }
.feature h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 14.5px; }

/* ===== Steps ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { text-align: center; padding: 20px; }
.step-num {
  width: 52px; height: 52px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--orange); color: #fff; font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 18px rgba(249,115,22,.35);
}
.step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14px; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-media img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; }
.about-text h2 { font-size: 32px; font-weight: 800; margin: 10px 0 16px; letter-spacing: -.02em; }
.about-text p { color: var(--muted); font-size: 16px; margin-bottom: 14px; }
.check-list { list-style: none; margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.check-list li { font-size: 15px; color: var(--ink-2); font-weight: 500; }

/* ===== Contact ===== */
.contact-section { background: linear-gradient(160deg, var(--orange-soft), #fff); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 50px; align-items: start; }
.contact-intro h2 { font-size: 34px; font-weight: 800; margin: 10px 0 14px; letter-spacing: -.02em; }
.contact-intro p { color: var(--muted); font-size: 16px; margin-bottom: 22px; }
.contact-info { display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.contact-info a { color: var(--orange-dark); font-weight: 600; }
.contact-info a:hover { text-decoration: underline; }

.inquiry-form {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-lg); display: grid;
  grid-template-columns: 1fr 1fr; gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink-2); }
.field input, .field select, .field textarea {
  border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px;
  font-size: 15px; font-family: inherit; color: var(--ink); background: #fff; transition: border .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px rgba(249,115,22,.15);
}
.field textarea { resize: vertical; }
.form-note { grid-column: 1 / -1; font-size: 12.5px; color: var(--muted); text-align: center; }

/* ===== Footer ===== */
.footer { background: var(--ink); color: #cbd5e1; padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; padding-bottom: 40px; }
.footer .logo { color: #fff; }
.footer-tag { font-size: 14px; margin-top: 14px; max-width: 280px; color: #94a3b8; }
.footer h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.footer a { display: block; font-size: 14px; color: #cbd5e1; margin-bottom: 9px; transition: color .2s; }
.footer a:hover { color: var(--orange); }
.footer-bottom { border-top: 1px solid #1e293b; padding: 18px 0; font-size: 13px; color: #64748b; }
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ===== Reveal Animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card img { height: 360px; }
  .product-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    position: fixed; top: 70px; right: 0; height: calc(100vh - 70px); width: 260px;
    background: #fff; flex-direction: column; align-items: flex-start; gap: 6px;
    padding: 24px; transform: translateX(100%); transition: transform .3s; box-shadow: var(--shadow-lg);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { width: 100%; padding: 10px 0; }
  .hamburger { display: flex; }
  .hero h1 { font-size: 34px; }
  .section-head h2 { font-size: 28px; }
  .product-grid, .feature-grid, .steps { grid-template-columns: 1fr; }
  .inquiry-form { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 22px; }
}