/* =========================================================
   IntelliPro Consulting — stylesheet
   Design tokens preserved from the original bundle so the
   look stays identical; layout rebuilt to be responsive.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600&display=swap');

:root {
  /* Brand & accent */
  --color-primary: #2C73FE;
  --color-primary-deep: #1a56c4;
  --color-primary-press: #2e2b8c;

  /* Surface */
  --color-canvas: #ffffff;
  --color-canvas-soft: #f6f9fc;
  --color-hairline: #e3e8ee;
  --color-hairline-input: #a8c3de;

  /* Text */
  --color-ink: #0d253d;
  --color-ink-secondary: #273951;
  --color-ink-mute: #64748d;
  --color-ink-soft: #61718a;
  --color-on-primary: #ffffff;

  /* Fonts */
  --font-display: "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  /* role · size / line-height */
  --type-display-xxl: 400 clamp(32px, 5vw, 56px)/1.1 var(--font-display);
  --type-display-xl:  400 clamp(28px, 4vw, 48px)/1.15 var(--font-display);
  --type-heading-lg:  400 22px/1.3 var(--font-display);
  --type-heading-md:  400 20px/1.4 var(--font-display);
  --type-heading-sm:  300 18px/1.4 var(--font-body);
  --type-body-lg:     300 16px/1.5 var(--font-body);
  --type-body-md:     300 15px/1.5 var(--font-body);
  --type-button-md:   500 16px/1.0 var(--font-body);
  --type-caption:     400 13px/1.4 var(--font-body);
  --type-micro-cap:   500 10px/1.15 var(--font-body);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;

  --container-max: 1200px;
  --shadow-1: rgba(0,55,112,0.08) 0 1px 3px;
  --shadow-2: rgba(0,55,112,0.08) 0 8px 24px, rgba(0,55,112,0.04) 0 2px 6px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font: var(--type-body-md);
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

[hidden] { display: none !important; }

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font: var(--type-micro-cap);
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--color-ink-mute);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: var(--type-button-md);
  color: var(--color-on-primary);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-pill);
  padding: 13px 24px;
  text-decoration: none;
  cursor: pointer;
  transition: background 150ms ease;
  white-space: nowrap;
}
.btn:hover { background: var(--color-primary-deep); }
.btn:active { background: var(--color-primary-press); }

.link-arrow {
  font: 400 15px/1 var(--font-body);
  color: var(--color-primary);
  text-decoration: none;
}
.link-arrow:hover { color: var(--color-primary-deep); }

/* ---------- Nav ---------- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(227,232,238,0.7);
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand-lockup { display: flex; align-items: center; gap: 16px; }
.brand-lockup img.logo-intellipro { height: 32px; width: auto; }
.brand-divider { width: 1px; height: 30px; background: var(--color-ink-mute); opacity: 0.35; }
.brand-lockup img.logo-workday { height: 36px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a.nav-link {
  font: 400 15px/1 var(--font-body);
  font-weight: 500;
  color: var(--color-ink-secondary);
  text-decoration: none;
  transition: color 150ms ease;
}
.nav-links a.nav-link:hover { color: var(--color-primary); }
.nav-links a.btn { padding: 10px 20px; }

/* ---------- Ultra-compact Language Switcher ---------- */
.lang-switch-compact {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: none;
  padding: 4px 6px;
  cursor: pointer;
  font: 500 13px/1 var(--font-body);
  color: var(--color-ink-mute);
  border-radius: var(--radius-sm);
  transition: background-color 150ms ease;
  flex-shrink: 0;
}
.lang-switch-compact:hover {
  background-color: var(--color-canvas-soft);
}
.lang-opt {
  transition: color 150ms ease, font-weight 150ms ease;
}
.lang-opt.active {
  color: var(--color-primary);
  font-weight: 600;
}
.lang-slash {
  opacity: 0.35;
  font-weight: 300;
  user-select: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-canvas);
}
.hero-mesh {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 680px;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
}
.hero-mesh span { position: absolute; filter: blur(60px); border-radius: 50%; }
.hero-mesh .b1 { top:-180px; left:-10%; width:50%; height:560px; background:radial-gradient(closest-side, #dcedfd 0%, rgba(220,237,253,0) 100%); filter:blur(40px); }
.hero-mesh .b2 { top:-140px; left:18%; width:44%; height:520px; background:radial-gradient(closest-side, #8fc0f7 0%, rgba(143,192,247,0) 100%); }
.hero-mesh .b3 { top:-120px; left:38%; width:44%; height:560px; background:radial-gradient(closest-side, #2c73fe 0%, rgba(44,115,254,0) 100%); filter:blur(70px); opacity:.75; }
.hero-mesh .b4 { top:-100px; left:56%; width:44%; height:620px; background:radial-gradient(closest-side, #3b53d9 0%, rgba(59,83,217,0) 100%); filter:blur(80px); opacity:.7; }
.hero-mesh .b5 { top:-160px; right:-12%; width:46%; height:560px; background:radial-gradient(closest-side, #0d4fa8 0%, rgba(13,79,168,0) 100%); filter:blur(70px); opacity:.55; }
.hero-mesh .fade { position:absolute; inset:0; background:linear-gradient(180deg, rgba(255,255,255,0) 35%, rgba(255,255,255,0.94) 100%); }

.hero-inner {
  position: relative;
  padding: 150px 32px 64px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.hero-copy { display: flex; flex-direction: column; gap: 24px; }
.badge-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.badge-row img.partner-badge { width: 64px; height: auto; filter: drop-shadow(rgba(0,55,112,0.15) 0 2px 6px); }
.badge-pill {
  display: inline-flex; align-items: center; gap: 10px;
  border: 1px solid rgba(44,115,254,0.22);
  border-radius: var(--radius-pill);
  padding: 8px 18px 8px 14px;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.72);
  box-shadow: rgba(0,55,112,0.06) 0 1px 2px;
  font: var(--type-micro-cap);
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--color-ink);
}
.badge-pill span span { color: var(--color-primary); }

.hero-copy h1 { font: var(--type-display-xxl); color: var(--color-ink); }
.hero-copy p.lead { font: var(--type-heading-sm); color: var(--color-ink-secondary); max-width: 480px; }
.hero-cta-row { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 4px; }

.hero-video-card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: 16px;
  box-shadow: rgba(0,55,112,0.12) 0 8px 24px;
  padding: 12px;
}
.hero-video-frame {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 10px;
  overflow: hidden;
  background: #0d253d;
  position: relative;
}
.hero-video-frame img { width: 100%; height: 100%; object-fit: cover; }
.video-play-btn {
  position: absolute; inset: 0; width: 100%; height: 100%;
  border: none; padding: 0; cursor: pointer; background: none;
}
.video-play-btn .scrim { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(13,37,61,0) 55%, rgba(13,37,61,0.45) 100%); }
.video-play-btn .play-icon {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 64px; height: 46px; border-radius: 14px;
  background: rgba(13,37,61,0.78);
  display: flex; align-items: center; justify-content: center;
  box-shadow: rgba(0,55,112,0.35) 0 6px 18px;
  transition: background 150ms ease;
}
.video-play-btn:hover .play-icon { background: var(--color-primary); }
.video-play-btn .caption { position: absolute; left: 16px; bottom: 14px; font: 400 13px/1 var(--font-body); color: #fff; }
.hero-video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- Generic section ---------- */
.section { position: relative; }
.section-head {
  display: flex; flex-direction: column; gap: 16px;
  max-width: 640px;
}
.section-head h2 { font: var(--type-display-xl); color: var(--color-ink); }
.section-head h2 span { color: var(--color-primary); }
.section-decor {
  position: absolute; top: -10px; right: -70px; width: 680px; max-width: none;
  pointer-events: none; user-select: none; z-index: 0;
}

/* About / services */
#about { border-bottom: 1px solid var(--color-hairline); background: linear-gradient(180deg, #fff 0%, #EBF2FE 220px); overflow: hidden; }
.about-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; padding-top: 96px; }
.about-grid .about-copy { display: flex; flex-direction: column; gap: 16px; }
.about-grid .about-detail { display: flex; flex-direction: column; gap: 16px; }
.about-grid p.hl { font: var(--type-heading-sm); color: var(--color-ink-secondary); }
.about-grid p.sub { font: var(--type-body-lg); color: var(--color-ink-mute); }

.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 64px; padding-bottom: 96px;
}
.service-card {
  display: flex; flex-direction: column; gap: 10px;
  background: var(--color-canvas); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg); padding: 32px;
  transition: box-shadow 150ms ease, transform 150ms ease;
}
.service-card:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); }
.service-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: rgba(44,115,254,0.10);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
}
.service-card h3 { font: var(--type-heading-md); color: var(--color-ink); }
.service-card p { font: var(--type-body-md); color: var(--color-ink-mute); }

/* Why partner with us */
#why-us { background: linear-gradient(180deg, #fff 0%, #EBF2FE 55%, #dcE9fa 100%); }
#why-us .container { padding-top: 96px; padding-bottom: 48px; }
.diff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.diff-card {
  display: flex; flex-direction: column;
  background: var(--color-canvas); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-1);
}
.diff-card .diff-photo { width: 100%; height: 220px; object-fit: cover; }
.diff-card .diff-body { display: flex; flex-direction: column; gap: 14px; padding: 28px 32px 32px; }
.diff-card .diff-num { font: 300 13px/1 var(--font-body); color: var(--color-ink-mute); }
.diff-card h3 { font: var(--type-heading-lg); color: var(--color-ink); }
.diff-card p { font: var(--type-body-md); color: var(--color-ink-secondary); }

/* Leadership */
#leadership { background: linear-gradient(180deg, #dcE9fa 0%, #EBF2FE 220px); overflow: hidden; }
#leadership .container { padding-top: 48px; padding-bottom: 48px; }
.leaders-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.leader-card {
  display: flex; flex-direction: column; gap: 16px;
  background: var(--color-canvas); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg); padding: 24px;
}
.leader-card .leader-photo { width: 100%; height: 300px; object-fit: cover; border-radius: var(--radius-md); }
.leader-meta { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.leader-meta .name { font: var(--type-heading-md); color: var(--color-ink); display: block; }
.leader-meta .role { font: var(--type-body-md); color: var(--color-ink-mute); display: block; }
.leader-linkedin {
  display: flex; width: 30px; height: 30px; align-items: center; justify-content: center;
  border-radius: 6px; background: var(--color-primary); flex-shrink: 0; transition: background 150ms ease;
}
.leader-linkedin:hover { background: #1a5fe0; }

/* Insights (hidden per current site configuration) */
#insights[hidden] { display: none; }

/* Trust strip */
.trust-strip {
  background: radial-gradient(ellipse 75% 95% at 50% 100%, rgba(44,115,254,0.20) 0%, rgba(44,115,254,0) 70%), linear-gradient(180deg, #f8fbfe 0%, #e3eefc 55%, #d3e4fa 100%);
}
.trust-strip .container { padding: 40px 32px; display: flex; flex-direction: column; gap: 28px; align-items: center; }
.logo-marquee {
  width: 100%; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
}
.logo-track {
  display: flex; align-items: center; gap: 56px; width: max-content;
  animation: marquee 32s linear infinite;
}
.logo-marquee:hover .logo-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.logo-item {
  width: 140px; height: 56px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.logo-item img { max-width: 100%; max-height: 40px; width: auto; height: auto; object-fit: contain; opacity: 0.85; }

/* CTA glow band */
.cta-band {
  position: relative; margin-top: -8px; overflow: hidden;
  background: radial-gradient(ellipse 60% 105% at 50% 100%, rgba(44,115,254,0.26) 0%, rgba(44,115,254,0.12) 45%, rgba(44,115,254,0) 78%);
  min-height: 440px;
}
.cta-burst { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.cta-band-copy {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px; text-align: center; padding: 32px; pointer-events: none;
}
.cta-band h2 { font: var(--type-display-xl); color: var(--color-ink); max-width: 720px; }
.cta-band h2 span { color: var(--color-primary); }
.cta-band p { font: var(--type-body-lg); color: var(--color-ink-secondary); max-width: 560px; }

@media (max-width: 520px) {
  .cta-band { min-height: 360px; }
}

/* Contact */
#contact { background: linear-gradient(180deg, #d6e6fa 0%, #e9f2fd 45%, #f8fbfe 100%); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; padding: 96px 32px 40px; }
.contact-copy { display: flex; flex-direction: column; gap: 20px; position: relative; }
.contact-copy h2 { font: var(--type-display-xl); color: var(--color-ink); }
.contact-copy p.lead { font: var(--type-body-lg); color: var(--color-ink-secondary); max-width: 440px; }
.hq-block {
  display: flex; flex-direction: column; gap: 8px; margin-top: 16px;
  border-top: 1px solid var(--color-hairline); padding-top: 20px; max-width: 440px;
}
.hq-block p { font: var(--type-body-md); color: var(--color-ink-secondary); }
.partner-line { display: flex; align-items: center; gap: 12px; margin-top: 8px; }
.partner-line img { width: 56px; height: auto; }
.partner-line span { font: var(--type-caption); color: var(--color-ink-mute); }
.contact-decor { width: 100%; max-width: 480px; margin-top: 16px; opacity: 0.9; pointer-events: none; user-select: none; }

.contact-form-card {
  background: var(--color-canvas); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-1);
}
.contact-form { display: grid; gap: 16px; }
.contact-form[hidden] { display: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: grid; gap: 6px; }
.form-field span { font: var(--type-caption); color: var(--color-ink-secondary); }
.form-field input, .form-field select, .form-field textarea {
  height: 40px; border: 1px solid var(--color-hairline-input); border-radius: var(--radius-sm);
  padding: 0 12px; font: 300 15px/1.4 var(--font-body); color: var(--color-ink); background: #fff;
}
.form-field textarea { height: auto; padding: 10px 12px; resize: vertical; }
.contact-form button { justify-self: start; margin-top: 4px; }

.form-success { display: flex; flex-direction: column; gap: 14px; padding: 32px 8px; text-align: center; align-items: center; }
.form-success[hidden] { display: none; }
.form-success .check {
  width: 44px; height: 44px; border-radius: 50%; background: var(--color-primary);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.form-success h3 { font: var(--type-heading-md); color: var(--color-ink); }
.form-success p { font: var(--type-body-md); color: var(--color-ink-mute); }

/* Footer */
.site-footer { background: var(--color-canvas); border-top: 1px solid var(--color-hairline); }
.offices-block { padding: 56px 32px 8px; display: flex; flex-direction: column; gap: 24px; }
.offices-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px 24px; }
.offices-grid span { font: 300 14px/1.5 var(--font-body); color: var(--color-ink-soft); }
.offices-grid span.hq { font-weight: 500; color: var(--color-primary); }
.offices-grid span.hq a { color: inherit; text-decoration: none; }
.offices-grid span.hq a:hover { text-decoration: underline; }
.footer-divider { height: 1px; background: var(--color-hairline); }
.footer-bottom {
  padding: 24px 32px 48px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.footer-bottom img { height: 28px; }
.footer-bottom .copyright { font: 300 12px/1.4 var(--font-body); color: var(--color-ink-mute); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 130px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; padding-top: 72px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-grid, .leaders-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-copy h1 { max-width: 100%; }
}

@media (max-width: 768px) {
  .nav-links { position: fixed; top: var(--nav-h, 64px); left: 0; right: 0; height: calc(100vh - var(--nav-h, 64px));; background: rgba(255,255,255,0.98); flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 4px; padding: 24px 32px; transform: translateX(-100%); transition: transform 200ms ease; overflow-y: auto; }
  .nav-links.open { transform: translateX(0); }
  .nav-links a.nav-link { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--color-hairline); }
  .nav-links a.btn { margin-top: 12px; }
  .nav-toggle { display: flex; }

  .badge-row img.partner-badge { width: 52px; }
  .hero-cta-row { flex-direction: column; align-items: flex-start; gap: 14px; }

  .services-grid, .diff-grid, .leaders-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section-decor { display: none; }
  .contact-decor { display: none; }

  .contact-form-card { padding: 24px; }
  .footer-bottom { justify-content: center; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 20px; }
  .hero-inner { padding-left: 20px; padding-right: 20px; }
  .hero-copy h1 { font-size: clamp(28px, 8vw, 40px); }
  .badge-pill span { display: block; }
  .logo-item { width: 110px; height: 48px; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .logo-track { animation: none; }
  html { scroll-behavior: auto; }
}

/* 日文版本下隐藏 Headquarters (总部信息) 模块 */
html[lang="ja"] .hq-block {
  display: none;
}