:root {
  --bg: #f6f3f8;
  --paper: #fffdfb;
  --ink: #1c1422;
  --muted: #5c5266;
  --line: rgba(59, 29, 74, 0.12);
  --purple: #3b1d4a;
  --plum: #6d358f;
  --leaf: #7aa83a;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --sans: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  z-index: 80;
  background: var(--purple);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
}
.skip:focus { top: 12px; }

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  color: #f4ecf8;
  transition: background 0.3s, box-shadow 0.3s, color 0.3s;
}
.nav-links a { color: #d5c6e0; }
.nav-toggle span { background: #f4ecf8; }
.nav.is-solid {
  color: var(--ink);
  background: rgba(246, 243, 248, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
.nav.is-solid .nav-links a { color: var(--muted); }
.nav.is-solid .nav-toggle span { background: var(--ink); }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background:
    radial-gradient(circle at 50% 62%, #8a4aad 0 42%, transparent 43%),
    linear-gradient(180deg, #95c34a 0 28%, #3b1d4a 28%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: 0.08em; }
.brand-text small { font-size: 10px; letter-spacing: 0.18em; color: #cbb8d8; }
.nav.is-solid .brand-text small { color: var(--muted); }

.nav-links { display: flex; gap: 22px; }
.nav-links a {
  font-size: 14px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.nav-links a:hover { color: #e8f5b8; }
.nav.is-solid .nav-links a:hover { color: var(--plum); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: none;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 1.5px;
  background: var(--ink);
}
.nav-toggle span:first-child { top: 16px; }
.nav-toggle span:last-child { top: 24px; }

.hero {
  position: relative;
  min-height: 88svh;
  display: grid;
  align-items: end;
  padding: 140px 0 80px;
  overflow: hidden;
  background: linear-gradient(160deg, #2a1434 0%, #3b1d4a 46%, #1b1024 100%);
  color: #f7f2fb;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 78% 30%, rgba(154, 195, 74, 0.18), transparent 28%),
    radial-gradient(circle at 20% 80%, rgba(138, 74, 173, 0.35), transparent 34%),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  mask-image: linear-gradient(#000 60%, transparent);
}
.hero-inner { position: relative; max-width: 760px; margin-left: 7vw; width: auto; }
.eyebrow {
  letter-spacing: 0.22em;
  font-size: 12px;
  color: #c9b6d6;
  margin: 0 0 16px;
}
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 650;
  letter-spacing: 0.04em;
  line-height: 1.2;
}
.hero-lead {
  margin: 0 0 28px;
  max-width: 34em;
  color: #e4d6ee;
  font-size: 18px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 0;
  letter-spacing: 0.06em;
}
.btn-primary {
  background: linear-gradient(180deg, #8f4db8, #6d358f);
  color: #fff;
  box-shadow: 0 10px 24px rgba(109, 53, 143, 0.28);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}
.hero .btn-ghost:hover { border-color: #c5e07a; }
.product-copy .btn-ghost,
.form .btn-ghost {
  color: var(--ink);
  border-color: var(--line);
  background: #fff;
}

.strip {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding: 28px 0;
}
.strip-grid b { display: block; }
.strip-grid span { color: var(--muted); font-size: 13px; }

section { padding: 92px 0; }
.kicker {
  margin: 0 0 8px;
  color: var(--plum);
  letter-spacing: 0.28em;
  font-size: 12px;
}
h2 {
  margin: 0 0 18px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: 0.04em;
  line-height: 1.25;
}

.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.about p { color: var(--muted); }
.facts {
  list-style: none;
  margin: 0;
  padding: 8px 0 0;
}
.facts li {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.facts span { display: block; color: var(--muted); font-size: 12px; letter-spacing: 0.12em; }
.facts strong { font-size: 18px; font-weight: 600; }

.biz { background: #efe8f3; }
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px 22px 26px;
}
.card .n { color: var(--plum); letter-spacing: 0.16em; font-size: 12px; }
.card h3 { margin: 16px 0 10px; font-size: 22px; }
.card p, .card li { color: var(--muted); }
.card ul { margin: 16px 0 0; padding-left: 18px; }

.product-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
  margin-top: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(59, 29, 74, 0.08);
}
.product-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}
.product-copy { padding: 28px 28px 32px 0; }
.tag {
  margin: 0 0 8px;
  color: var(--plum);
  letter-spacing: 0.1em;
  font-size: 12px;
}
.product-copy h3 { margin: 0 0 10px; font-size: 30px; }
.product-copy h3 small { font-weight: 500; color: var(--muted); font-size: 16px; }
.product-copy p { color: var(--muted); }

.contact { background: var(--paper); }
.contact-list { margin: 24px 0 0; }
.contact-list div { margin: 0 0 14px; }
.contact-list dt { color: var(--muted); font-size: 12px; letter-spacing: 0.12em; }
.contact-list dd { margin: 2px 0 0; font-size: 18px; }
.contact-list a { color: var(--plum); border-bottom: 1px solid rgba(109, 53, 143, 0.3); }

.form {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--bg);
}
.form label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.form input,
.form select,
.form textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
}
.form-hint { margin: 0; font-size: 12px; color: var(--muted); }
.muted { color: var(--muted); max-width: 36em; }

.nav.is-page { color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--plum); font-weight: 600; }

.sol-list { display: grid; gap: 48px; margin-top: 36px; }
.sol {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}
.sol.is-flip { direction: rtl; }
.sol.is-flip > * { direction: ltr; }
.sol img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid var(--line);
}
.sol .n { color: var(--plum); letter-spacing: 0.16em; font-size: 12px; }
.sol h3 { margin: 8px 0 10px; font-size: 26px; }
.sol p, .sol li { color: var(--muted); }
.sol ul { margin: 12px 0 16px; padding-left: 18px; }
.text-link {
  color: var(--plum);
  border-bottom: 1px solid rgba(109, 53, 143, 0.35);
  font-size: 14px;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.scene-grid article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px 18px 22px;
}
.scene-grid h3 { margin: 0 0 8px; font-size: 18px; }
.scene-grid p { margin: 0; color: var(--muted); font-size: 14px; }

.cta-band {
  background: #2a1434;
  color: #f4ecf8;
  padding: 72px 0;
}
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { color: #d7cbe0; max-width: 36em; }

.page-hero {
  padding: 120px 0 48px;
  background: linear-gradient(180deg, #efe8f3, var(--bg));
}
.page-hero h1 { margin: 0 0 12px; font-size: clamp(32px, 5vw, 48px); }
.lede { color: var(--muted); max-width: 40em; font-size: 18px; }
.jump { display: flex; flex-wrap: wrap; gap: 12px 18px; margin: 22px 0 0; }
.jump a { color: var(--plum); border-bottom: 1px solid rgba(109, 53, 143, 0.3); }

.detail { padding: 64px 0; }
.detail.alt { background: #efe8f3; }
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  margin-bottom: 28px;
}
.detail-grid img {
  width: 100%;
  border-radius: 20px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line);
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.check { margin: 0; padding-left: 18px; color: var(--muted); }
.check li { margin: 8px 0; }
.detail h3 { margin: 0 0 10px; font-size: 18px; }

.steps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: st;
}
.steps li {
  counter-increment: st;
  padding: 16px 0 16px 52px;
  border-top: 1px solid var(--line);
  position: relative;
  color: var(--muted);
}
.steps strong { color: var(--ink); margin-right: 8px; }
.steps li::before {
  content: counter(st, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  color: var(--plum);
  letter-spacing: 0.06em;
  font-size: 13px;
}

.foot-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.foot nav { display: flex; gap: 18px; }
.foot nav a { color: #d7cbe0; font-size: 14px; }
.icp a { color: inherit; }

.foot {
  border-top: 1px solid var(--line);
  padding: 28px 0 36px;
  background: #2a1434;
  color: #d7cbe0;
}
.foot-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.foot p { margin: 0; }
.icp { font-size: 12px; opacity: 0.7; margin-top: 4px !important; }
.foot .brand-mark { background:
  radial-gradient(circle at 50% 62%, #8a4aad 0 42%, transparent 43%),
  linear-gradient(180deg, #95c34a 0 28%, #5a2d72 28%);
}

@media (max-width: 900px) {
  .strip-grid, .cards, .about-grid, .contact-grid, .product-card,
  .sol, .detail-grid, .split, .scene-grid {
    grid-template-columns: 1fr;
  }
  .sol.is-flip { direction: ltr; }
  .product-copy { padding: 8px 20px 24px; }
  .hero-inner { margin-left: 20px; margin-right: 20px; }
}

@media (max-width: 720px) {
  .nav { padding: 12px 16px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    left: 12px;
    right: 12px;
    top: 60px;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(28, 20, 34, 0.1);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 16px; }
  .hero { padding: 120px 0 64px; }
  .foot-inner, .foot-grid { flex-direction: column; align-items: flex-start; }
}