:root {
  color-scheme: light;
  --ink: #1f2226;
  --muted: rgba(31, 34, 38, 0.66);
  --soft: rgba(31, 34, 38, 0.5);
  --line: rgba(31, 34, 38, 0.1);
  --surface: #f7fbff;
  --surface-strong: #eef6ff;
  --panel: #ffffff;
  --accent: #4f80ff;
  --accent-deep: #245edb;
  --accent-soft: #e3eeff;
  --radius-card: 8px;
  --shadow: 0 22px 60px rgba(55, 94, 164, 0.16);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #fafdff 0%, #f5f9ff 42%, #ffffff 100%);
  color: var(--ink);
  font-family:
    "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(79, 128, 255, 0.12);
  background: rgba(250, 253, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #87b7ff);
  color: #ffffff;
  font-size: 13px;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.nav-links a {
  transition: color 0.22s ease;
}

.nav-links a:hover {
  color: var(--accent-deep);
}

.section-shell {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: 52px;
  align-items: center;
  min-height: 610px;
  padding: 52px 0 42px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.hero h1,
.section-heading h2,
.closing-panel h2 {
  margin: 0;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.12;
}

.hero h1 {
  max-width: 640px;
  font-size: clamp(42px, 5vw, 62px);
}

.hero-lede {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.button:active {
  transform: translateY(1px);
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 14px 34px rgba(79, 128, 255, 0.28);
}

.button.primary:hover {
  box-shadow: 0 18px 44px rgba(79, 128, 255, 0.36);
}

.button.secondary {
  border: 1px solid rgba(79, 128, 255, 0.28);
  background: rgba(255, 255, 255, 0.8);
  color: var(--accent-deep);
}

.button.secondary:hover {
  border-color: rgba(79, 128, 255, 0.52);
}

.hero-visual {
  position: relative;
  padding: 16px;
  border: 1px solid rgba(79, 128, 255, 0.16);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, #ffffff 0%, #edf5ff 100%);
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.visual-note {
  position: absolute;
  right: 28px;
  bottom: 28px;
  width: min(340px, calc(100% - 56px));
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 16px 36px rgba(31, 34, 38, 0.12);
  backdrop-filter: blur(16px);
}

.visual-note span,
.kicker,
.scenario-matrix span,
.timeline-card span,
.evidence-strip span,
.growth-lanes span,
.score-table span {
  display: block;
  color: var(--soft);
  font-size: 13px;
}

.visual-note strong {
  display: block;
  margin-top: 6px;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.45;
}

.evidence-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto 72px;
  overflow: hidden;
  border: 1px solid rgba(79, 128, 255, 0.14);
  border-radius: var(--radius-card);
  background: rgba(79, 128, 255, 0.12);
}

.evidence-strip div {
  min-height: 112px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.86);
}

.evidence-strip strong {
  display: block;
  margin-top: 8px;
  font-size: 17px;
  line-height: 1.42;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  font-size: clamp(32px, 4vw, 48px);
}

.section-heading p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.fit-section {
  padding: 32px 0 88px;
}

.fit-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 18px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}

.metric-card {
  min-height: 190px;
  padding: 26px;
  border: 1px solid rgba(79, 128, 255, 0.14);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 48px rgba(55, 94, 164, 0.1);
}

.metric-card span,
.engine-card span,
.translation-row span,
.portrait-wrap span {
  display: block;
  color: var(--soft);
  font-size: 13px;
}

.metric-card strong {
  display: block;
  margin-top: 10px;
  color: var(--accent-deep);
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 850;
  line-height: 1;
}

.metric-card p {
  margin: 16px 0 0;
  color: var(--muted);
}

.hero-metric {
  background:
    linear-gradient(135deg, rgba(227, 238, 255, 0.94), rgba(255, 255, 255, 0.94)),
    var(--panel);
}

.hero-metric strong {
  color: var(--ink);
}

.fit-focus {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.focus-card {
  min-height: 244px;
  padding: 26px;
  border: 1px solid rgba(79, 128, 255, 0.14);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 48px rgba(55, 94, 164, 0.1);
}

.focus-card h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.28;
}

.focus-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.fit-score,
.fit-card,
.fit-gaps,
.product-story,
.growth-system,
.scenario-matrix,
.mql-model,
.timeline-card,
.closing-panel,
.translation-board,
.engine-card,
.statement-card {
  border: 1px solid rgba(79, 128, 255, 0.14);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 48px rgba(55, 94, 164, 0.1);
}

.fit-score {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 360px;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(227, 238, 255, 0.9), rgba(255, 255, 255, 0.94)),
    var(--panel);
}

.score-ring {
  display: grid;
  width: 126px;
  height: 126px;
  place-items: center;
  align-content: center;
  border: 11px solid var(--accent);
  border-radius: 999px;
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(31, 34, 38, 0.04);
}

.score-ring span {
  color: var(--accent-deep);
  font-size: 42px;
  font-weight: 850;
  line-height: 1;
}

.score-ring small {
  color: var(--soft);
  font-size: 12px;
}

.fit-score h3,
.fit-card h3,
.product-story h3,
.growth-copy h3,
.scenario-matrix h3,
.mql-model h3,
.timeline-card h3,
.closing-panel h2 {
  margin: 0;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.25;
}

.fit-score p,
.fit-card p,
.fit-gaps p,
.product-story p,
.capability-grid p,
.growth-copy p,
.matrix p,
.mql-model p,
.timeline-card p,
.closing-panel p {
  margin: 12px 0 0;
  color: var(--muted);
}

.fit-card {
  position: relative;
  min-height: 228px;
  padding: 26px;
}

.fit-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 28px;
  margin-bottom: 20px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 800;
}

.fit-gaps {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  margin-top: 20px;
  padding: 30px;
  background: linear-gradient(135deg, #ffffff, #f0f7ff);
}

.fit-gaps h3 {
  margin: 0;
  font-size: 24px;
}

.gap-quote {
  padding: 22px;
  border-radius: var(--radius-card);
  background: #1f2226;
  color: #ffffff;
}

.gap-quote strong {
  display: block;
  color: #e3eeff;
}

.gap-quote p {
  color: rgba(255, 255, 255, 0.82);
}

.strategy-section {
  padding: 88px 0;
  background:
    linear-gradient(180deg, #edf5ff 0%, #f8fbff 46%, #ffffff 100%);
}

.product-story {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1.2fr);
  gap: 32px;
  align-items: center;
  padding: 30px;
}

.kicker {
  margin-bottom: 8px;
  color: var(--accent-deep);
  font-weight: 800;
}

.product-story img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-card);
  background: #0f2248;
}

.story-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.story-tags span {
  padding: 8px 12px;
  border: 1px solid rgba(79, 128, 255, 0.22);
  border-radius: 999px;
  background: #f4f8ff;
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 700;
}

.capability-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.9fr 0.95fr;
  gap: 18px;
  margin-top: 18px;
}

.capability-grid article {
  overflow: hidden;
  border: 1px solid rgba(79, 128, 255, 0.14);
  border-radius: var(--radius-card);
  background: #ffffff;
}

.capability-grid img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-bottom: 1px solid rgba(79, 128, 255, 0.1);
}

.capability-grid h3 {
  margin: 20px 22px 0;
  font-size: 20px;
}

.capability-grid p {
  margin: 10px 22px 24px;
}

.translation-board {
  display: grid;
  grid-template-columns: 0.9fr repeat(3, 1fr);
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  background: rgba(79, 128, 255, 0.12);
}

.board-heading,
.translation-row {
  min-height: 210px;
  padding: 26px;
  background: #ffffff;
}

.board-heading {
  background:
    linear-gradient(135deg, #1f2226, #344a94);
  color: #ffffff;
}

.board-heading h3,
.translation-row strong {
  display: block;
  margin: 0;
  font-size: 23px;
  line-height: 1.25;
}

.board-heading p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.translation-row strong {
  margin-top: 14px;
  color: var(--ink);
}

.translation-row p {
  margin: 14px 0 0;
  color: var(--muted);
}

.engine-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.engine-card {
  overflow: hidden;
  background: #ffffff;
}

.engine-card img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-bottom: 1px solid rgba(79, 128, 255, 0.1);
}

.engine-card div {
  padding: 22px;
}

.engine-card h3 {
  margin: 8px 0 0;
  font-size: 22px;
}

.engine-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.growth-system {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 28px;
  margin-top: 18px;
  padding: 30px;
}

.growth-lanes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.growth-lanes div {
  min-height: 120px;
  padding: 20px;
  border-radius: var(--radius-card);
  background: #f4f8ff;
}

.growth-lanes strong {
  display: block;
  margin-top: 8px;
  font-size: 16px;
  line-height: 1.45;
}

.scenario-matrix {
  margin-top: 18px;
  padding: 30px;
}

.matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 22px;
}

.matrix article {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 14px;
  border: 1px solid rgba(79, 128, 255, 0.12);
  border-radius: var(--radius-card);
  background: #ffffff;
}

.matrix img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.matrix h4 {
  margin: 4px 0 0;
  font-size: 18px;
}

.mql-model {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 30px;
  align-items: center;
  margin-top: 18px;
  padding: 30px;
}

.score-table {
  display: grid;
  gap: 10px;
}

.score-table div {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr) 52px;
  gap: 12px;
  align-items: center;
  min-height: 58px;
  padding: 13px 16px;
  border-radius: var(--radius-card);
  background: #f4f8ff;
}

.score-table strong {
  font-size: 15px;
}

.score-table em {
  color: var(--accent-deep);
  font-style: normal;
  font-weight: 850;
  text-align: right;
}

.timeline-section {
  padding: 88px 0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.timeline-card {
  padding: 28px;
}

.timeline-card span {
  margin-bottom: 16px;
  color: var(--accent-deep);
  font-weight: 850;
}

.timeline-card strong {
  display: block;
  margin-top: 18px;
  color: var(--ink);
  line-height: 1.5;
}

.closing {
  padding: 16px 0 88px;
}

.closing-panel {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 36px;
  align-items: center;
  padding: 24px;
  background: linear-gradient(135deg, #ffffff, #eef6ff);
}

.closing-panel img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.closing-panel .button {
  margin-top: 22px;
}

.statement-section {
  padding: 0 0 92px;
}

.statement-card {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding: 30px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(239, 247, 255, 0.94)),
    #ffffff;
}

.portrait-wrap {
  position: sticky;
  top: 92px;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(79, 128, 255, 0.12);
}

.portrait-wrap img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
}

.portrait-wrap div {
  padding: 18px;
}

.portrait-wrap strong {
  display: block;
  font-size: 22px;
}

.message-bubble {
  position: relative;
  padding: 30px;
  border-radius: var(--radius-card);
  background: #ffffff;
  box-shadow: 0 18px 44px rgba(55, 94, 164, 0.12);
}

.message-bubble::before {
  content: "";
  position: absolute;
  top: 34px;
  left: -12px;
  width: 24px;
  height: 24px;
  transform: rotate(45deg);
  border-left: 1px solid rgba(79, 128, 255, 0.12);
  border-bottom: 1px solid rgba(79, 128, 255, 0.12);
  background: #ffffff;
}

.message-bubble p {
  margin: 0;
  color: rgba(31, 34, 38, 0.74);
  font-size: 17px;
  line-height: 1.92;
}

.message-head {
  margin-bottom: 16px;
}

.message-head span {
  display: block;
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 800;
}

.message-head strong {
  display: block;
  margin-top: 6px;
  color: var(--ink);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.18;
}

.message-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.message-chips span {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 800;
}

.message-bubble p strong {
  color: var(--accent-deep);
  font-weight: 850;
}

.message-bubble p + p {
  margin-top: 18px;
}

.footer {
  padding: 28px 24px 38px;
  border-top: 1px solid rgba(79, 128, 255, 0.12);
  color: var(--soft);
  text-align: center;
}

.footer p {
  max-width: var(--max);
  margin: 0 auto;
  font-size: 13px;
}

.footer a {
  margin-left: 12px;
  color: var(--accent-deep);
  font-weight: 700;
}

.reveal {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .site-header {
    padding: 0 18px;
  }

  .nav-links {
    gap: 16px;
    font-size: 13px;
  }

  .hero,
  .product-story,
  .growth-system,
  .mql-model,
  .closing-panel,
  .fit-gaps,
  .statement-card {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 32px;
    padding-top: 46px;
  }

  .hero h1 {
    font-size: 44px;
  }

  .evidence-strip,
  .fit-grid,
  .capability-grid,
  .timeline,
  .metrics-grid,
  .fit-focus,
  .engine-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .translation-board {
    grid-template-columns: repeat(2, 1fr);
  }

  .portrait-wrap {
    position: static;
    max-width: 320px;
  }

  .fit-score {
    grid-row: auto;
  }

  .matrix {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
  }

  .section-shell,
  .evidence-strip {
    width: min(100% - 32px, var(--max));
  }

  .hero {
    min-height: auto;
    padding: 34px 0 42px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-lede {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .visual-note {
    position: static;
    width: auto;
    margin-top: 12px;
  }

  .evidence-strip,
  .fit-grid,
  .capability-grid,
  .growth-lanes,
  .timeline,
  .metrics-grid,
  .fit-focus,
  .translation-board,
  .engine-grid {
    grid-template-columns: 1fr;
  }

  .matrix article {
    grid-template-columns: 1fr;
  }

  .score-table div {
    grid-template-columns: 1fr;
  }

  .score-table em {
    text-align: left;
  }

  .product-story,
  .growth-system,
  .scenario-matrix,
  .mql-model,
  .fit-gaps,
  .closing-panel,
  .statement-card,
  .message-bubble {
    padding: 20px;
  }

  .board-heading,
  .translation-row {
    min-height: auto;
    padding: 22px;
  }

  .message-bubble::before {
    display: none;
  }

  .footer {
    text-align: left;
  }

  .footer a {
    display: inline-block;
    margin: 8px 12px 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .button,
  .nav-links a {
    transition: none;
  }
}