:root {
  --blue: #1a73e8;
  --blue-dark: #0b57d0;
  --blue-soft: #e8f0fe;
  --ink: #172033;
  --muted: #5f6b7a;
  --line: #dce3ee;
  --surface: #ffffff;
  --surface-soft: #f6f8fc;
  --success: #137333;
  --warning: #b06000;
  --danger: #b3261e;
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 28px;
  --shadow-sm: 0 5px 16px rgba(25, 46, 89, .08);
  --shadow: 0 18px 50px rgba(25, 46, 89, .12);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  padding: .7rem 1rem;
  background: #fff;
  border: 2px solid var(--blue);
  border-radius: 10px;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(var(--container), calc(100% - 36px)); margin-inline: auto; }
.section { padding: 88px 0; }
.section-soft { background: var(--surface-soft); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading.center { text-align: center; margin-inline: auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--blue-dark);
  background: var(--blue-soft);
  border-radius: 999px;
  padding: .4rem .75rem;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1, h2, h3 { line-height: 1.12; margin: 0 0 1rem; letter-spacing: -.03em; }
h1 { font-size: clamp(2.55rem, 6vw, 5.1rem); }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; color: var(--muted); }
.lead { font-size: clamp(1.05rem, 2vw, 1.25rem); }
.blue-text { color: var(--blue); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(220,227,238,.9);
  backdrop-filter: blur(16px);
}
.nav-wrap { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--blue-dark); font-weight: 850; text-decoration: none; white-space: nowrap; }
.brand img { width: 42px; height: 42px; border-radius: 50%; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a { padding: .55rem .8rem; color: #465164; font-weight: 650; text-decoration: none; border-radius: 10px; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--blue-dark); background: var(--blue-soft); }
.nav-actions { display: flex; align-items: center; gap: .65rem; }
.menu-button { display: none; border: 0; background: transparent; color: var(--ink); padding: .55rem; border-radius: 10px; }
.menu-button:hover { background: var(--surface-soft); }

.btn {
  border: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 46px;
  padding: .72rem 1.1rem;
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--blue), #2e86f3); box-shadow: 0 8px 20px rgba(26,115,232,.25); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-secondary { color: var(--blue-dark); background: #fff; border: 1px solid #b8c4d6; }
.btn-ghost { color: var(--blue-dark); background: var(--blue-soft); }
.btn-danger { color: #fff; background: var(--danger); }
.btn-small { min-height: 38px; padding: .52rem .8rem; font-size: .88rem; }
.icon-button { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--line); background: #fff; display: inline-grid; place-items: center; cursor: pointer; }

.hero { padding: 82px 0 96px; overflow: hidden; background: radial-gradient(circle at 85% 15%, rgba(26,115,232,.12), transparent 32%), #fff; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(38px, 7vw, 88px); }
.hero-copy p { max-width: 670px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-trust { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.chip { display: inline-flex; align-items: center; gap: .42rem; padding: .48rem .7rem; border: 1px solid var(--line); border-radius: 999px; color: #465164; background: rgba(255,255,255,.86); font-size: .9rem; }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: 28px -18px -18px 28px; border: 2px solid rgba(26,115,232,.2); border-radius: 34px; z-index: 0; }
.hero-visual img { position: relative; z-index: 1; width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 32px; box-shadow: var(--shadow); }
.floating-card { position: absolute; z-index: 2; right: -18px; bottom: 28px; width: min(230px, 55%); background: rgba(255,255,255,.95); border: 1px solid var(--line); box-shadow: var(--shadow-sm); border-radius: 18px; padding: 14px; }
.floating-card strong { display: block; color: var(--ink); }
.floating-card span { color: var(--muted); font-size: .86rem; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.service-card { padding: 26px; min-height: 250px; display: flex; flex-direction: column; }
.icon-box { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px; background: var(--blue-soft); color: var(--blue-dark); margin-bottom: 22px; }
.service-card .text-link { margin-top: auto; }
.text-link { display: inline-flex; align-items: center; gap: .35rem; color: var(--blue-dark); font-weight: 800; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.product-card { position: relative; min-height: 430px; overflow: hidden; border-radius: 26px; color: #fff; isolation: isolate; }
.product-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .5s ease; }
.product-card::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to top, rgba(5,18,42,.95), rgba(5,18,42,.12) 72%); }
.product-card:hover img { transform: scale(1.035); }
.product-card-content { height: 100%; min-height: 430px; padding: 30px; display: flex; flex-direction: column; justify-content: flex-end; }
.product-card p { color: rgba(255,255,255,.86); max-width: 550px; }
.product-label { display: inline-flex; align-self: flex-start; margin-bottom: 10px; padding: .38rem .65rem; border-radius: 999px; background: rgba(26,115,232,.92); color: #fff; font-size: .74rem; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }

.about-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 54px; align-items: center; }
.about-panel { padding: 34px; border-radius: 28px; background: linear-gradient(150deg, #0b57d0, #1a73e8); color: white; min-height: 410px; display: flex; flex-direction: column; justify-content: space-between; }
.about-panel p { color: rgba(255,255,255,.82); }
.value-list { display: grid; gap: 14px; }
.value-item { display: flex; gap: 13px; align-items: flex-start; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.value-item svg { color: var(--blue); flex: 0 0 auto; }

.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.blog-card { overflow: hidden; }
.blog-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.blog-card-body { padding: 22px; }
.meta { display: flex; flex-wrap: wrap; gap: .5rem .9rem; color: var(--muted); font-size: .85rem; margin-bottom: .7rem; }

.cta { background: linear-gradient(135deg, #0b57d0, #2e86f3); border-radius: 30px; color: #fff; padding: clamp(32px, 6vw, 70px); display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; overflow: hidden; position: relative; }
.cta::after { content: ""; position: absolute; width: 330px; height: 330px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); right: -100px; top: -120px; }
.cta p { color: rgba(255,255,255,.84); }
.cta .btn-secondary { border: 0; }

.page-hero { padding: 72px 0; background: linear-gradient(180deg, #f4f7ff, #fff); text-align: center; }
.page-hero .section-heading { margin: 0 auto; }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 58px; align-items: center; }
.product-detail + .product-detail { margin-top: 90px; }
.product-detail.reverse .product-image { order: 2; }
.product-image { border: 1px solid var(--line); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); }
.product-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.check-list { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; color: #465164; }
.check-list svg { color: var(--blue); margin-top: 4px; flex: 0 0 auto; }

.contact-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 28px; align-items: start; }
.contact-stack { display: grid; gap: 16px; }
.contact-card { padding: 22px; }
.contact-row { display: flex; gap: 12px; align-items: flex-start; }
.form-card { padding: clamp(24px, 4vw, 38px); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
label { font-weight: 750; font-size: .93rem; }
input, select, textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  background: #fff;
  color: var(--ink);
  border-radius: 12px;
  padding: .8rem .9rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(26,115,232,.12); }
.form-status { margin-top: 14px; font-weight: 700; }
.form-status.success { color: var(--success); }
.form-status.error { color: var(--danger); }
.help-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 48px; }
.help-card { padding: 22px; }

.article-shell { width: min(840px, calc(100% - 36px)); margin-inline: auto; padding: 72px 0 90px; }
.article-header { text-align: center; }
.article-cover { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: 26px; margin: 36px 0; box-shadow: var(--shadow); }
.article-content { font-size: 1.07rem; }
.article-content h2 { font-size: 2rem; margin-top: 2.2rem; }
.article-content p { color: #3f4b5e; }
.article-content figure { margin: 2.2rem 0; }
.article-content figure img { border-radius: 20px; width: 100%; }
.article-content figcaption { color: var(--muted); font-size: .88rem; margin-top: .6rem; text-align: center; }
.article-content blockquote { margin: 2rem 0; padding: 1.25rem 1.4rem; border-left: 4px solid var(--blue); background: var(--blue-soft); border-radius: 0 16px 16px 0; font-size: 1.2rem; font-weight: 750; color: #244268; }

.faq-list { display: grid; gap: 14px; max-width: 900px; margin: 0 auto; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; box-shadow: var(--shadow-sm); }
.faq-list summary { cursor: pointer; font-weight: 800; color: var(--ink); }
.faq-list details p { margin: 12px 0 0; }

.site-footer { background: #f4f6fa; border-top: 1px solid var(--line); padding: 58px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.25fr repeat(3, 1fr); gap: 36px; }
.footer-grid h3 { font-size: 1rem; letter-spacing: 0; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--blue-dark); }
.footer-bottom { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: .88rem; }

.install-banner { display: none; position: fixed; z-index: 1200; left: 50%; bottom: 18px; transform: translateX(-50%); width: min(560px, calc(100% - 28px)); padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); align-items: center; gap: 12px; }
.install-banner.show { display: flex; }
.install-banner img { width: 46px; height: 46px; border-radius: 50%; }
.install-banner-copy { flex: 1; }
.install-banner-copy strong { display: block; }
.install-banner-copy span { color: var(--muted); font-size: .86rem; }

/* Admin */
.admin-body { background: #f4f6fa; }
.admin-shell { min-height: 100vh; display: grid; grid-template-columns: 260px 1fr; }
.admin-sidebar { position: sticky; top: 0; height: 100vh; padding: 22px; background: #fff; border-right: 1px solid var(--line); }
.admin-sidebar nav { display: grid; gap: 8px; margin-top: 30px; }
.admin-sidebar button { text-align: left; padding: .75rem .9rem; border: 0; border-radius: 12px; background: transparent; color: #465164; font-weight: 750; cursor: pointer; }
.admin-sidebar button.active, .admin-sidebar button:hover { background: var(--blue-soft); color: var(--blue-dark); }
.admin-main { padding: 34px; min-width: 0; }
.admin-top { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 28px; }
.admin-panel { display: none; }
.admin-panel.active { display: block; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat-card { padding: 22px; }
.stat-card strong { display: block; font-size: 2rem; }
.admin-card { padding: 24px; margin-top: 22px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .82rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.status-pill { display: inline-flex; padding: .28rem .55rem; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-size: .78rem; font-weight: 800; }
.admin-form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.block-list { display: grid; gap: 12px; margin-top: 16px; }
.content-block { border: 1px solid var(--line); border-radius: 14px; padding: 14px; background: #fff; }
.block-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; }
.block-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.add-block-menu { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; padding: 14px; border: 1px dashed #aebbd0; border-radius: 14px; background: #fbfcff; }
.notice { padding: 14px 16px; border-radius: 14px; background: #fff8e6; color: #704700; border: 1px solid #f1d59a; }
.upload-preview { width: 100%; max-height: 220px; object-fit: cover; border-radius: 14px; margin-top: 10px; display: none; }
.code-note { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .86rem; background: #eef2f8; padding: .15rem .35rem; border-radius: 6px; }
.mobile-admin-menu { display: none; }

@media (max-width: 980px) {
  .main-nav { position: fixed; inset: 74px 16px auto; display: none; flex-direction: column; align-items: stretch; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: .8rem 1rem; }
  .menu-button { display: inline-grid; place-items: center; }
  .nav-actions .btn { display: none; }
  .hero-grid, .about-grid, .product-detail, .contact-layout { grid-template-columns: 1fr; }
  .hero { padding-top: 58px; }
  .hero-copy { text-align: center; }
  .hero-copy p { margin-inline: auto; }
  .hero-actions, .hero-trust { justify-content: center; }
  .hero-visual { max-width: 720px; margin: 0 auto; }
  .grid-3, .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .help-cards { grid-template-columns: repeat(2, 1fr); }
  .product-detail.reverse .product-image { order: 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; height: auto; display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; }
  .admin-sidebar nav { position: fixed; z-index: 2000; left: 14px; right: 14px; top: 72px; display: none; margin: 0; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }
  .admin-sidebar nav.open { display: grid; }
  .mobile-admin-menu { display: inline-grid; }
  .admin-main { padding: 22px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .container { width: min(100% - 24px, var(--container)); }
  .section { padding: 64px 0; }
  .nav-wrap { min-height: 66px; }
  .main-nav { top: 66px; }
  .brand img { width: 36px; height: 36px; }
  .hero { padding: 48px 0 72px; }
  .hero-grid { gap: 42px; }
  .hero-visual::before { display: none; }
  .hero-visual img { border-radius: 22px; }
  .floating-card { right: 12px; bottom: 12px; }
  .grid-3, .grid-2, .blog-grid, .help-cards, .form-grid, .admin-form-grid, .stat-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 0; }
  .product-card, .product-card-content { min-height: 380px; }
  .cta { grid-template-columns: 1fr; text-align: center; }
  .cta .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .admin-main { padding: 16px; }
  .admin-top { align-items: flex-start; flex-direction: column; }
  .admin-card { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}