:root {
  --bg: #f3f6fa;
  --card: #ffffff;
  --text: #0b1220;
  --muted: #5b6b7c;
  --blue: #1d4ed8;
  --teal: #0f766e;
  --line: #dbe3ee;
  --radius: 18px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow: 0 14px 36px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--blue); text-decoration: none; }
.wrap { width: min(1080px, 92vw); margin: 0 auto; }
.narrow { max-width: 760px; }
.center { text-align: center; }

.top {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
}
.top-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; gap: 16px;
}
.brand {
  color: var(--text); font-weight: 800; font-size: 18px;
  display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.brand-mark {
  width: 36px; height: 36px; border-radius: 11px;
  display: grid; place-items: center;
  background: linear-gradient(145deg, #1d4ed8, #0f766e);
  color: #fff; font-weight: 800; font-size: 15px;
  box-shadow: 0 8px 18px rgba(29, 78, 216, 0.22);
}
nav {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap; justify-content: flex-end;
}
nav a { color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--text); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px; padding: 12px 20px; font-weight: 700; font-size: 14px;
  border: 1px solid transparent; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff !important;
  box-shadow: 0 10px 24px rgba(29, 78, 216, 0.22);
}
.btn-ghost {
  background: #fff; border-color: var(--line); color: var(--text) !important;
}
.btn-ghost:hover { border-color: #b6c4d6; }

.hero {
  padding: 78px 0 64px;
  background:
    radial-gradient(900px 420px at 88% -18%, rgba(29, 78, 216, 0.14), transparent 55%),
    radial-gradient(720px 380px at 0% 40%, rgba(15, 118, 110, 0.1), transparent 52%),
    linear-gradient(180deg, #ffffff 0%, #f3f6fa 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: 720px; }
.eyebrow {
  color: var(--teal); font-weight: 700; letter-spacing: 0.08em;
  margin: 0 0 14px; font-size: 13px; text-transform: uppercase;
}
.brand-hero {
  margin: 0 0 16px;
  font-size: clamp(42px, 7vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 900;
  color: var(--text);
}
.lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
  max-width: 34em;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

.section { padding: 64px 0; }
.section.tint {
  background: #fff;
  border-block: 1px solid var(--line);
}
.section h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3.2vw, 34px);
  letter-spacing: -0.02em;
}
.section-sub {
  color: var(--muted);
  margin: 0 0 30px;
  line-height: 1.65;
}
.prose {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 14px;
}
.vision-line {
  margin: 0 0 16px;
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.4;
}
.pillars {
  list-style: none; padding: 0; margin: 28px 0 0;
  display: grid; gap: 12px;
}
.pillars li {
  display: grid; grid-template-columns: 64px 1fr; gap: 12px; align-items: baseline;
  padding: 14px 16px; border-radius: 14px;
  background: var(--bg); border: 1px solid var(--line);
}
.pillars strong { color: var(--blue); font-size: 15px; }
.pillars span { color: var(--muted); font-size: 14px; line-height: 1.6; }

.scope-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.scope-grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  box-shadow: var(--shadow);
}
.scope-grid h3 { margin: 0 0 8px; font-size: 16px; }
.scope-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.biz-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.biz-card {
  display: block;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: inherit;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.biz-card:hover {
  transform: translateY(-3px);
  border-color: #b8cdf0;
  box-shadow: 0 18px 40px rgba(29, 78, 216, 0.1);
}
.biz-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef5ff;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}
.biz-card h3 { margin: 0 0 8px; font-size: 20px; color: var(--text); }
.biz-card p { margin: 0 0 16px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.biz-cta { font-size: 13px; font-weight: 700; color: var(--blue); }
.biz-cta.soon { color: var(--muted); font-weight: 600; }
.biz-card.muted {
  opacity: 0.88;
  background: #f8fafc;
  cursor: default;
  box-shadow: none;
}
.biz-card.muted:hover {
  transform: none;
  border-color: var(--line);
  box-shadow: none;
}
.biz-tag.soft {
  background: #f1f5f9;
  color: var(--muted);
}

.line-block {
  margin: 0 0 40px;
  padding: 28px 24px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.line-block:last-child { margin-bottom: 0; }
.line-head {
  margin: 0 0 18px;
  max-width: 42em;
}
.line-badge {
  display: inline-block;
  margin-bottom: 10px;
  padding: 5px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #eef5ff, #ecfeff);
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.line-head h3 {
  margin: 0 0 8px;
  font-size: clamp(20px, 2.4vw, 24px);
  color: var(--text);
}
.line-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.line-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  width: min(760px, 100%);
  margin: 0 auto;
}
.line-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 24px 22px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  color: inherit;
  min-height: 210px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.line-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  background: var(--blue);
}
.line-card:hover {
  transform: translateY(-4px);
  border-color: #b8cdf0;
  box-shadow: 0 20px 44px rgba(29, 78, 216, 0.12);
}
.line-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 16px;
}
.line-ico {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  background: #eef5ff;
  box-shadow: inset 0 0 0 1px rgba(29, 78, 216, 0.08);
  color: var(--blue);
}
.line-svg {
  width: 24px;
  height: 24px;
  display: block;
}
.line-card-no {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--teal);
  opacity: 0.85;
}
.line-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.line-card p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}
.line-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eef5ff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.line-card:hover .line-card-cta {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
}

.line-card.tone-desktop::before { background: linear-gradient(180deg, #2563eb, #0ea5e9); }
.line-card.tone-desktop .line-ico { background: #eff6ff; }
.line-card.tone-mobile::before { background: linear-gradient(180deg, #0f766e, #14b8a6); }
.line-card.tone-mobile .line-ico { background: #ecfdf5; }
.line-card.tone-mobile .line-card-cta { background: #ecfdf5; color: #0f766e; }
.line-card.tone-mobile:hover .line-card-cta { background: linear-gradient(135deg, #0f766e, #0d9488); color: #fff; }
.line-card.tone-web::before { background: linear-gradient(180deg, #1d4ed8, #6366f1); }
.line-card.tone-web .line-ico { background: #eef2ff; }
.line-card.tone-ai::before { background: linear-gradient(180deg, #7c3aed, #ec4899); }
.line-card.tone-ai .line-ico { background: #faf5ff; }
.line-card.tone-ai .line-card-cta { background: #faf5ff; color: #7c3aed; }
.line-card.tone-ai:hover .line-card-cta { background: linear-gradient(135deg, #7c3aed, #db2777); color: #fff; }

.page-hero {
  padding: 48px 0 36px;
  background:
    radial-gradient(700px 320px at 90% -10%, rgba(29, 78, 216, 0.1), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #f3f6fa 100%);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.02em;
}
.page-hero .lead {
  margin: 0;
  font-size: 16px;
  max-width: 36em;
}
.crumb {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--muted);
}
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--blue); }

.upload-panel {
  padding: 24px;
  border-radius: 18px;
  border: 1px dashed #b6c4d6;
  background: #fff;
  margin-bottom: 8px;
}
.upload-panel h2 { margin: 0 0 8px; font-size: 20px; }
.upload-panel p { margin: 0 0 16px; color: var(--muted); line-height: 1.65; }
.upload-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.upload-disabled {
  opacity: 0.55;
  pointer-events: none;
  cursor: not-allowed;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 8px;
}
.gallery-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.gallery-ph {
  height: 140px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, #eef5ff, #ecfeff);
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
}
.gallery-card h3 {
  margin: 14px 14px 6px;
  font-size: 16px;
}
.gallery-card p {
  margin: 0 14px 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.contact-list {
  margin: 22px 0 12px; padding: 0;
  display: grid; gap: 12px;
}
.contact-list > div {
  display: grid; grid-template-columns: 100px 1fr; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.contact-list dt { color: var(--muted); font-size: 13px; }
.contact-list dd { margin: 0; font-weight: 600; }
.fine { color: var(--muted); font-size: 12px; line-height: 1.6; }

.foot {
  padding: 36px 0 28px;
  background: #0b1220;
  color: #94a3b8;
  font-size: 13px;
}
.foot a { color: #cbd5e1; }
.foot a:hover { color: #fff; }
.foot-inner {
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  padding-bottom: 22px; border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}
.foot-brand {
  margin: 0 0 6px; color: #fff; font-size: 18px; font-weight: 800;
}
.foot-links { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-start; }
.foot-legal { padding-top: 18px; }
.foot-legal p { margin: 0 0 6px; }

@media (max-width: 960px) {
  .scope-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  nav a:not(.btn) { display: none; }
  .biz-grid, .line-card-grid { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 44px; }
}
@media (max-width: 560px) {
  .scope-grid, .gallery-grid { grid-template-columns: 1fr; }
  .contact-list > div { grid-template-columns: 1fr; gap: 4px; }
  .pillars li { grid-template-columns: 1fr; }
}