@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800&family=Noto+Serif+SC:wght@600;700&display=swap");

:root {
  color-scheme: light;
  --background: #f5f7fb;
  --foreground: #182033;
  --card: #ffffff;
  --card-foreground: #182033;
  --popover: #ffffff;
  --popover-foreground: #182033;
  --primary: #24436f;
  --primary-foreground: #ffffff;
  --secondary: #e8edf5;
  --secondary-foreground: #1e3557;
  --muted: #eef2f7;
  --muted-foreground: #5b6475;
  --accent: #4f6f9f;
  --accent-foreground: #ffffff;
  --destructive: #b42318;
  --destructive-foreground: #ffffff;
  --border: #d7dee9;
  --input: #cfd8e6;
  --ring: #315a92;
  --success: #2e7d5b;
  --warning: #8a6f2a;
  --surface-soft: #f9fafc;
  --surface-blue: #edf3fb;
  --surface-ink: #1f2f49;
  --shadow: 0 10px 30px rgba(31, 47, 73, 0.08);
  --shadow-sm: 0 6px 18px rgba(31, 47, 73, 0.06);
  --radius: 8px;
  --radius-sm: 5px;
  --font-display: "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", sans-serif;
  --container: min(1160px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.72;
}

body.is-locked {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid rgba(49, 90, 146, 0.35);
  outline-offset: 3px;
}

.bg-background {
  background: var(--background);
}

.text-foreground {
  color: var(--foreground);
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  width: var(--container);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  color: var(--foreground);
  font-weight: 800;
  line-height: 1.1;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--primary);
  color: var(--primary-foreground);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-name {
  font-size: 1.04rem;
}

.brand-sub {
  color: var(--muted-foreground);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--muted-foreground);
  font-size: 0.96rem;
  font-weight: 700;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.is-active {
  background: var(--secondary);
  color: var(--secondary-foreground);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--foreground);
}

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: var(--radius-sm);
  padding: 11px 17px;
  background: var(--primary);
  color: var(--primary-foreground);
  font-weight: 800;
  line-height: 1.2;
  box-shadow: var(--shadow-sm);
  transition: background 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.btn:hover {
  background: #1f395f;
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--surface-ink);
  color: var(--primary-foreground);
}

.btn-ghost {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--foreground);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--secondary);
  box-shadow: none;
}

.btn-accent {
  background: var(--accent);
  color: var(--accent-foreground);
}

.btn-accent:hover {
  background: #415f8c;
}

.icon {
  width: 1.1em;
  height: 1.1em;
  flex: 0 0 auto;
}

.hero {
  width: var(--container);
  margin: 0 auto;
  padding: 76px 0 58px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: 46px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin: 0 0 18px;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted-foreground);
  font-size: 0.84rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--foreground);
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(2.35rem, 4.6vw, 3.2rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.75rem, 2.4vw, 2.4rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.38rem);
  font-weight: 800;
}

p {
  margin: 0;
}

.lead {
  max-width: 66ch;
  margin-top: 22px;
  color: var(--muted-foreground);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(720px, 100%);
  margin-top: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
  box-shadow: var(--shadow-sm);
}

.proof-item {
  min-height: 86px;
  padding: 18px;
  background: var(--card);
}

.proof-value {
  display: block;
  color: var(--primary);
  font-size: 1.04rem;
  font-weight: 800;
}

.proof-label {
  display: block;
  margin-top: 6px;
  color: var(--muted-foreground);
  font-size: 0.88rem;
}

.hero-visual {
  position: relative;
  min-height: 460px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius) var(--radius) 0 0;
  height: 8px;
  background: var(--primary);
}

.visual-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 12px 0 26px;
  color: var(--muted-foreground);
  font-size: 0.82rem;
  font-weight: 800;
}

.pipeline {
  display: grid;
  gap: 14px;
}

.pipeline-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.pipeline-step .icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.pipeline-step strong {
  display: block;
  margin-bottom: 4px;
  color: var(--foreground);
  font-size: 1rem;
}

.pipeline-step span {
  color: var(--muted-foreground);
  font-size: 0.92rem;
}

.visual-badge {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-blue);
  color: var(--foreground);
}

.visual-badge strong {
  display: block;
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.25;
}

.visual-badge span {
  display: block;
  margin-top: 7px;
  color: var(--muted-foreground);
  font-size: 0.9rem;
  line-height: 1.56;
}

.section {
  width: var(--container);
  margin: 0 auto;
  padding: 70px 0;
}

.section-tight {
  padding-top: 34px;
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.5fr);
  gap: 30px;
  align-items: end;
  margin-bottom: 30px;
}

.section-header p {
  color: var(--muted-foreground);
}

.asym-grid,
.split-feature,
.download-layout,
.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
  gap: 22px;
  align-items: normal;
}

.content-band {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.content-band.is-strong {
  background: var(--surface-ink);
  color: var(--primary-foreground);
}

.content-band.is-strong h2,
.content-band.is-strong h3,
.content-band.is-strong p,
.content-band.is-strong li {
  color: inherit;
}

.content-band.is-strong .muted {
  color: #d7deea;
}

.feature-stack {
  display: grid;
  gap: 14px;
}

.feature-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

.feature-item .icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.feature-item p {
  margin-top: 6px;
  color: var(--muted-foreground);
}

.card-grid,
.offset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tool-card {
  min-height: 100%;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.tool-card .icon {
  width: 28px;
  height: 28px;
  margin-bottom: 18px;
  color: var(--primary);
}

.tool-card p {
  margin-top: 10px;
  color: var(--muted-foreground);
}

.numbered-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.numbered-list li {
  counter-increment: steps;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

.numbered-list li::before {
  content: counter(steps, decimal-leading-zero);
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--secondary);
  color: var(--primary);
  font-weight: 800;
}

.numbered-list strong {
  display: block;
  margin-bottom: 4px;
}

.numbered-list span,
.muted {
  color: var(--muted-foreground);
}

.comparison-table {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th,
td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--secondary);
  color: var(--secondary-foreground);
  font-weight: 800;
}

tr:last-child td {
  border-bottom: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 11px;
  background: var(--muted);
  color: var(--muted-foreground);
  font-size: 0.88rem;
  font-weight: 700;
}

.download-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.download-panel {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.download-panel h3 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.download-panel .icon {
/*  color: #fff; */
}

.download-panel p {
  margin-top: 10px;
  color: var(--muted-foreground);
}

.download-meta {
  display: grid;
  gap: 10px;
  margin: 20px 0;
}

.download-meta span {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  color: var(--muted-foreground);
}

.download-meta strong {
  color: var(--foreground);
  font-weight: 800;
}

.history-list {
  display: grid;
  gap: 12px;
}

.history-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

.version {
  color: var(--primary);
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.faq-item p {
  margin-top: 8px;
  color: var(--muted-foreground);
}

.source-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 20px;
}

.source-list a {
  color: var(--primary);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.cta-band {
  width: var(--container);
  margin: 30px auto 80px;
  padding: 34px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  border-radius: var(--radius);
  background: var(--surface-ink);
  color: var(--primary-foreground);
  box-shadow: var(--shadow);
}

.cta-band h2,
.cta-band p {
  color: inherit;
}

.cta-band p {
  margin-top: 8px;
  color: #d9e0ec;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface-ink);
  color: #eef3fa;
}

.footer-wrap {
  width: var(--container);
  margin: 0 auto;
  padding: 38px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, auto);
  gap: 24px;
  align-items: start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links a {
  color: #d9e0ec;
  font-weight: 700;
}

.footer-note {
  max-width: 700px;
  margin-top: 12px;
  color: #bdc7d8;
  font-size: 0.92rem;
}

.site-footer .brand,
.site-footer .brand-sub {
  color: #eef3fa;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(24, 32, 51, 0.64);
}

.modal-backdrop.is-open {
  display: flex;
}

.download-modal {
  width: min(760px, 100%);
  max-height: min(88vh, 760px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--popover);
  color: var(--popover-foreground);
  box-shadow: 0 24px 80px rgba(24, 32, 51, 0.24);
}

.modal-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 24px 0;
}

.modal-head p {
  margin-top: 6px;
  color: var(--muted-foreground);
}

.modal-close {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--foreground);
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 24px;
}

.qr-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  text-align: center;
}

.qr-card img {
	display:inline-block;
  max-width: 100%;
  aspect-ratio: 1;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: #ffffff;
}

.qr-card h3 {
  margin-top: 14px;
  font-size: 1.08rem;
}

.qr-card p {
  margin: 8px 0 14px;
  color: var(--muted-foreground);
  font-size: 0.92rem;
}

.modal-foot {
  padding: 0 24px 24px;
  color: var(--muted-foreground);
  font-size: 0.92rem;
}

.page-hero {
  width: var(--container);
  margin: 0 auto;
  padding: 70px 0 34px;
  align-items: end;
}

.page-hero .lead {
  margin-top: 18px;
}

.side-note {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--muted-foreground);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-actions .btn {
    display: none;
  }

  .hero,
  .page-hero,
  .section-header,
  .asym-grid,
  .split-feature,
  .download-layout,
  .cta-band,
  .footer-wrap {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 52px;
  }

  .hero-visual {
    min-height: auto;
  }

  .card-grid,
  .offset-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  :root {
    --container: min(100vw - 28px, 1160px);
  }

  .brand-sub {
    display: none;
  }

  .hero-proof,
  .qr-grid,
  .card-grid,
  .offset-grid,
  .history-item {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

  .hero-actions,
  .cta-band {
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .proof-item,
  .content-band,
  .tool-card,
  .download-panel,
  .faq-item,
  .cta-band {
    padding: 20px;
  }

  table {
    min-width: 640px;
  }
}

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