/* ============================================================
   UK IMPETUS — styles.css
   Self-hosted fonts, no external CDN, China-safe
   Fonts: Playfair Display (headings) + Inter (body)
   ============================================================ */

/* ── 1. @font-face ──────────────────────────────────────────── */

@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/PlayfairDisplay-bold-latin.woff2?v=20260521c') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC,
    U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/PlayfairDisplay-italic-latin.woff2?v=20260521c') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC,
    U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-latin.woff2?v=20260521c') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC,
    U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}


/* ── 2. CSS Variables ───────────────────────────────────────── */

:root {
  --bg-base:         #0d0b14;
  --bg-card:         #1a1625;
  --bg-card-hover:   #201d2e;
  --border:          rgba(255, 255, 255, 0.07);
  --border-hover:    rgba(255, 255, 255, 0.16);
  --text-primary:    #e8e4f0;
  --text-muted:      #8b839c;
  --gold:            #c9a84c;
  --text-gold:       #c9a84c;

  --radius-md:  8px;
  --radius-xl:  16px;
  --radius-2xl: 24px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-gold: 0 0 48px rgba(201, 168, 76, 0.18);

  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-display: 'Playfair Display', Georgia, "Songti SC", serif;

  /* Scroll-morph transition variables (driven by JS) */
  --choice-progress:          0;
  --choice-open-x:            42%;
  --choice-open-y:            34%;
  --choice-card-opacity:      0;
  --choice-card-scale:        0.96;
  --choice-heading-opacity:   0;
  --choice-pattern-opacity:   0.15;
  --choice-aperture-scale:    0.86;
  --choice-shell-opacity:     0;
  --services-opacity:         1;
  --services-scale:           1;
  --services-y:               0px;

  --accent-china: #c5462a;
  --accent-uk:    #4b6585;
  --accent:       var(--accent-china);

  --transition-fast:   150ms ease;
  --transition-base:   220ms ease;
  --transition-slow:   400ms ease;
  --transition-reveal: 680ms cubic-bezier(0.22, 1, 0.36, 1);
}


/* ── 3. Reset + Base ────────────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 15px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Selection */
::selection {
  background: rgba(197, 70, 42, 0.28);
  color: #fff;
}
::-moz-selection {
  background: rgba(197, 70, 42, 0.28);
  color: #fff;
}

/* Focus visible — keyboard-only outline */
:focus-visible {
  outline: 2px solid var(--accent-china);
  outline-offset: 3px;
  border-radius: 3px;
}
[data-direction="china-to-uk"] :focus-visible {
  outline-color: var(--accent-uk);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.22); }

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

ul, ol {
  list-style: none;
}


/* ── 4. Grain Overlay ───────────────────────────────────────── */

.grain {
  position: fixed; inset: -50%; width: 200%; height: 200%;
  pointer-events: none; z-index: 1000; opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  animation: grain-shift 8s steps(10) infinite;
}

@keyframes grain-shift {
  0%   { transform: translate(0, 0); }
  10%  { transform: translate(-3%, -4%); }
  20%  { transform: translate(4%, -2%); }
  30%  { transform: translate(-2%, 5%); }
  40%  { transform: translate(3%, 3%); }
  50%  { transform: translate(-4%, -1%); }
  60%  { transform: translate(2%, -5%); }
  70%  { transform: translate(-3%, 3%); }
  80%  { transform: translate(5%, -2%); }
  90%  { transform: translate(-2%, 4%); }
  100% { transform: translate(0, 0); }
}


/* ── 5. Eyebrow utility ─────────────────────────────────────── */

.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-gold);
  margin-bottom: 20px;
}


/* ── 6. Scroll Reveal ───────────────────────────────────────── */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}
.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}
.reveal-fade {
  opacity: 0;
  transition: opacity var(--transition-reveal);
}

.reveal.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-scale.visible,
.reveal-fade.visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 { transition-delay: 0.10s; }
.reveal-delay-2 { transition-delay: 0.20s; }
.reveal-delay-3 { transition-delay: 0.32s; }
.reveal-delay-4 { transition-delay: 0.44s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-left, .reveal-right, .reveal-scale, .reveal-fade {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ── 7. Navigation ──────────────────────────────────────────── */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 80px;
  background: linear-gradient(180deg, rgba(0,0,0,0.52) 0%, transparent 100%);
  transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.site-nav.scrolled {
  background: rgba(13, 11, 20, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-logo {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 2px;
  text-shadow: 0 1px 10px rgba(0,0,0,0.6);
}

.nav-logo span {
  color: var(--text-gold);
}

.nav-lang {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  letter-spacing: 0.02em;
}

.site-nav.scrolled .nav-lang {
  opacity: 1;
}


/* ── 8. Hero ────────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  padding-top: 64px;
  background:
    linear-gradient(to bottom, rgba(13, 11, 20, 0.55) 0%, rgba(13, 11, 20, 0.88) 100%),
    url('../img/hero-bg.jpg?v=20260521c') center / cover no-repeat;
}

/* Radial gold glow at left-center */
.hero::before {
  content: '';
  position: absolute;
  width: 1000px;
  height: 800px;
  top: 45%;
  left: 35%;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    ellipse,
    rgba(201, 168, 76, 0.08) 0%,
    transparent 65%
  );
  pointer-events: none;
  z-index: 0;
}

/* Dot grid fading toward edges */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 75% 75% at 40% 50%, black 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 75% 75% at 40% 50%, black 0%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

/* Inner grid: headline left, Chinese text right */
.hero-inner {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: flex-end;
  padding: 0 80px 64px;
  position: relative;
  z-index: 1;
  gap: 48px;
}

.hero-text {
  /* left column: headline */
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(72px, 11vw, 160px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  opacity: 0;
  animation: fadeUp 0.9s ease 0.1s forwards;
}

.hero-headline em {
  display: block;
  font-style: italic;
  color: var(--gold);
}

.hero-headline span {
  display: block;
}

/* Vertical Chinese text column */
.hero-zh {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-body);
  font-size: clamp(14px, 1.3vw, 19px);
  letter-spacing: 0.22em;
  color: var(--text-muted);
  border-left: 1px solid rgba(201, 168, 76, 0.2);
  padding-left: 24px;
  align-self: flex-end;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.6s forwards;
  user-select: none;
}

.hero-sep {
  color: var(--gold);
}

/* Bottom strip */
.hero-base {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 80px;
  border-top: 1px solid rgba(201, 168, 76, 0.15);
}

.hero-base-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0;
  animation: fadeUp 0.9s ease 0.9s forwards;
}

.hero-base-scroll {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0;
  animation: fadeUp 0.9s ease 1.1s forwards;
}


/* ── 9. Ticker Strip ────────────────────────────────────────── */

.ticker {
  position: relative;
  z-index: 2;
  width: 100%;
  overflow: hidden;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 13px 0;
  display: flex;
  align-items: center;
}

.ticker-track {
  display: flex;
  align-items: center;
  gap: 20px;
  white-space: nowrap;
  animation: ticker-move 40s linear infinite;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-left: 40px;
}

.ticker-track span {
  white-space: nowrap;
}

.ticker-dot {
  color: var(--gold) !important;
  opacity: 0.8;
}

.ticker-arrow {
  color: var(--gold);
  opacity: 0.7;
}

@keyframes ticker-move {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}


/* ── Container ──────────────────────────────────────────────── */

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 80px;
}


/* ── 10. About Section ──────────────────────────────────────── */

.about-section {
  padding: 120px 0;
  position: relative;
}

.about-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 80% at 80% 50%,
    rgba(201, 168, 76, 0.04) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-left {
  /* left column */
}

.about-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.about-body {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 16px;
}

.about-quote {
  border-left: 2px solid var(--gold);
  padding-left: 20px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 400;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.7;
  margin-top: 24px;
}

.about-zh-note {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.85;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* Right column: tall decorative card */
.about-right {
  /* right column */
}

.about-visual {
  aspect-ratio: 3 / 4;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Gold glow behind */
.about-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 80% at 40% 40%, rgba(201, 168, 76, 0.10) 0%, transparent 65%),
    radial-gradient(ellipse 50% 50% at 80% 80%, rgba(201, 168, 76, 0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Grid crosshatch pattern */
.about-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  z-index: 0;
}

.about-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13, 11, 20, 0.15) 0%, rgba(13, 11, 20, 0.72) 100%);
  border-radius: inherit;
  z-index: 1;
}

.about-visual-inner {
  position: relative;
  z-index: 2;
}

.about-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

/* Ghost Chinese character "英" */
.about-visual-bg-char {
  position: absolute;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 260px;
  font-weight: 700;
  color: var(--gold);
  opacity: 0.05;
  line-height: 1;
  user-select: none;
  pointer-events: none;
  letter-spacing: -0.05em;
  right: -20px;
  bottom: -30px;
  z-index: 0;
}

.about-visual-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.about-visual-logo {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-gold);
}

.about-visual-tagline {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  text-align: center;
}

.about-visual-tagline em {
  color: var(--text-gold);
  font-style: italic;
  display: block;
}

.about-visual-cities {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ── 11. Services Section + Header ─────────────────────────── */

.services-section {
  min-height: 240vh;
  padding: 0;
  position: relative;
  isolation: isolate;
}

.services-sticky {
  position: sticky;
  top: 0;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.services-sticky > .container {
  padding-top: 92px;
  padding-bottom: 72px;
  width: 100%;
}

.services-content {
  width: 100%;
  opacity: var(--services-opacity);
  transform: translateY(var(--services-y)) scale(var(--services-scale));
  transition: opacity 0.16s linear, transform 0.16s linear;
  transform-origin: center;
}

.services-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}

.services-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 68px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--text-primary);
}

.services-title em {
  font-style: italic;
  color: var(--gold);
}

.services-title-zh {
  font-family: var(--font-body);
  font-size: clamp(18px, 2.2vw, 32px);
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.2;
}

.services-sub {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 280px;
  text-align: right;
}

/* Bilingual split grid */
.services-split {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0 56px;
  align-items: start;
}

.services-col-divider {
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(201, 168, 76, 0.25) 20%,
    rgba(201, 168, 76, 0.25) 80%,
    transparent
  );
  align-self: stretch;
}

.services-col-header {
  margin-bottom: 28px;
}

.services-direction {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-gold);
  margin-bottom: 10px;
}

.services-col-title {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.8vw, 20px);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.services-list {
  display: flex;
  flex-direction: column;
}


/* ── 13. Service Row Components ─────────────────────────────── */

.service-row {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 0 14px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  color: inherit;
}

.service-row:first-child {
  border-top: 1px solid var(--border);
}

.row-num {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-gold);
  opacity: 0.55;
  padding-top: 2px;
}

.row-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.row-title {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: color 0.2s ease;
}

.row-tagline {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}


/* ── 14. Lang Choice Overlay ────────────────────────────────── */

.lang-choice {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 0 40px;
  text-align: center;
  isolation: isolate;
  background:
    radial-gradient(ellipse at 50% 45%, rgba(201, 168, 76, 0.16) 0%, transparent 44%),
    linear-gradient(135deg, #0d0b14 0%, #15111f 48%, #0b1018 100%);
  overflow: clip;
  pointer-events: none;
  opacity: var(--choice-shell-opacity);
}

.lang-choice.choice-active {
  pointer-events: auto;
}

.lang-choice::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(13, 11, 20, 0.98), transparent 46%, transparent 54%, rgba(13, 11, 20, 0.98)),
    linear-gradient(180deg, rgba(201, 168, 76, 0.18), rgba(71, 93, 108, 0.08));
  clip-path: inset(var(--choice-open-y) var(--choice-open-x) round 18px);
  transform: scale(var(--choice-aperture-scale));
  opacity: 0.96;
}

.lang-choice::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 78% 58% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 78% 58% at 50% 50%, black 20%, transparent 100%);
  opacity: var(--choice-pattern-opacity);
}

.choice-content {
  width: min(760px, 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 92px;
  padding-bottom: 72px;
  z-index: 0;
}

.choice-content > .reveal.visible {
  opacity: var(--choice-heading-opacity);
  transform: none;
}

.lang-choice-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.lang-choice-sub {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 56px;
  line-height: 1.6;
}

.lang-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
  opacity: var(--choice-card-opacity);
  transform: scale(var(--choice-card-scale));
  transition: opacity 0.16s linear, transform 0.16s linear;
  transform-origin: center;
}

.lang-card-img {
  margin: -48px -40px 28px;
  height: 200px;
  overflow: hidden;
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  position: relative;
  flex-shrink: 0;
}

.lang-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lang-card-img::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 110px;
  background: linear-gradient(to bottom, transparent, var(--bg-card));
  pointer-events: none;
}

.lang-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition:
    border-color 0.3s ease,
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.lang-card:hover {
  border-color: rgba(201, 168, 76, 0.4);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}

.lang-card.is-suggested {
  border-color: rgba(201, 168, 76, 0.5);
  box-shadow: 0 0 24px rgba(201, 168, 76, 0.1);
}

.choice-active .lang-card {
  animation: choicePop 520ms cubic-bezier(0.2, 1.2, 0.24, 1) both;
}

@keyframes choicePop {
  0%   { transform: scale(0.97); box-shadow: var(--shadow-card); }
  62%  { transform: scale(1.025); box-shadow: 0 0 54px rgba(201, 168, 76, 0.16); }
  100% { transform: scale(1); box-shadow: var(--shadow-card); }
}

.lang-card-tag {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-gold);
  margin-bottom: 20px;
}

.lang-card-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.25;
  color: var(--text-primary);
}

.lang-card-sub {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 32px;
  flex: 1;
}

.lang-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  background: var(--gold);
  color: var(--bg-base);
  transition:
    background 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
  align-self: flex-start;
}

.lang-card:hover .lang-card-btn {
  background: #d4b45e;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.35);
}


/* ── 15. Footer ─────────────────────────────────────────────── */

.site-footer {
  padding: 32px 80px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 20px;
  align-items: center;
}

.footer-links a {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text-primary);
}


/* ── 16. CTA Button + Skeleton / Inner Page Classes ─────────── */

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  background: var(--gold);
  color: var(--bg-base);
  text-decoration: none;
  transition:
    background 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
  margin-top: 28px;
}

.cta-btn:hover {
  background: #d4b45e;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.35);
}

.page-hero {
  min-height: 55vh;
  display: flex;
  align-items: flex-end;
  padding: 120px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 70% 70% at 30% 60%,
    rgba(201, 168, 76, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.page-intro {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.8;
}

.page-body {
  padding: 72px 0 100px;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
}


/* ── 17. Responsive Rules ───────────────────────────────────── */

@media (max-width: 1100px) {
  .site-nav {
    padding: 0 40px;
  }

  .container {
    padding: 0 40px;
  }

  .hero-inner {
    padding: 0 40px 56px;
  }

  .hero-base {
    padding: 16px 40px;
  }

  .site-footer {
    padding: 32px 40px;
  }
}

@media (max-width: 900px) {
  .about-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-right {
    order: -1;
  }

  .about-visual {
    aspect-ratio: 3 / 2;
    max-width: 520px;
    margin: 0 auto;
  }

  .services-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .services-sub {
    text-align: left;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .site-nav {
    padding: 0 20px;
  }

  .container {
    padding: 0 20px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 0 24px 48px;
    gap: 32px;
  }

  .hero-zh {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    border-left: none;
    border-top: 1px solid rgba(201, 168, 76, 0.2);
    padding-left: 0;
    padding-top: 16px;
    letter-spacing: 0.14em;
    font-size: 13px;
    align-self: auto;
  }

  .hero-base {
    padding: 14px 24px;
  }

  .hero-headline {
    font-size: clamp(56px, 14vw, 96px);
  }

  .site-footer {
    padding: 24px 20px;
    flex-direction: column;
    align-items: flex-start;
  }

  .services-split {
    grid-template-columns: 1fr;
    gap: 56px 0;
  }

  .services-col-divider {
    display: none;
  }

  .lang-cards {
    grid-template-columns: 1fr;
  }

  .lang-card {
    padding: 36px 28px;
  }

  .lang-card-img {
    margin: -36px -28px 24px;
    height: 160px;
  }

  .about-section {
    padding: 72px 0;
  }

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

@media (max-width: 480px) {
  .hero-inner {
    padding: 0 20px 40px;
  }

  .hero-base {
    padding: 12px 20px;
  }

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

  .services-header {
    padding-bottom: 32px;
    margin-bottom: 40px;
  }
}


/* ── 18. Nav Right Cluster + Overlay ─────────────────────────── */

.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-section-link {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.88);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.32);
  padding: 0.38rem 0.95rem;
  border-radius: 999px;
  transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
}
.nav-section-link:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.65);
  background: rgba(255,255,255,0.07);
}

.nav-section-label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-menu-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: auto;
  cursor: pointer;
  background: none;
  border: 1px solid rgba(255,255,255,0.32);
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  flex-shrink: 0;
  transition: border-color 200ms ease, background 200ms ease;
}
.nav-menu-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255,255,255,0.88);
  transition: background 0.2s ease;
}
.nav-menu-btn::after {
  content: 'MENU';
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.88);
  margin-top: 1px;
  transition: color 0.2s ease;
}
.nav-menu-btn:hover {
  border-color: rgba(255,255,255,0.65);
  background: rgba(255,255,255,0.07);
}
.nav-menu-btn:hover span { background: #fff; }
.nav-menu-btn:hover::after { color: #fff; }

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  padding: 80px 80px 56px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity 0.28s ease, transform 0.28s ease;
}
.nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-overlay-close {
  position: absolute;
  top: 20px;
  right: 40px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 8px;
  transition: color 0.2s ease;
}
.nav-overlay-close:hover { color: var(--text-primary); }

.nav-overlay-eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.nav-overlay-list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
}

.nav-overlay-link {
  display: flex;
  align-items: baseline;
  gap: 20px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 40px);
  font-weight: 700;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: -0.02em;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s ease;
}
.nav-overlay-list li:first-child .nav-overlay-link { border-top: 1px solid var(--border); }
.nav-overlay-link:hover { color: var(--text-primary); }
.nav-overlay-link.is-active { color: var(--text-primary); }
.nav-overlay-link.is-active .ov-active-mark {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  align-self: center;
}

.ov-num {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold);
  min-width: 22px;
  flex-shrink: 0;
}

.nav-overlay-footer {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}
.nav-overlay-footer a {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.nav-overlay-footer a:hover { color: var(--text-primary); }


/* ── 19. Service Page Body Styles ────────────────────────────── */

.sp-body {
  padding: 0 0 100px;
}

.sp-section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.sp-section-label {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 36px;
}

.sp-body-text {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.88;
  max-width: 680px;
}
.sp-body-text + .sp-body-text { margin-top: 20px; }

.sp-services-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 760px;
}

.sp-service-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.sp-service-item:first-child { border-top: 1px solid var(--border); }

.sp-service-name {
  display: block;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.sp-service-desc {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

.sp-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 680px;
}
.sp-bullets li {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 22px;
  position: relative;
}
.sp-bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
}

.sp-cta {
  padding: 64px 0 0;
  border-top: 1px solid var(--border);
}

.sp-cta-heading {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.sp-cta-body {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 32px;
}

.sp-cta-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  background: var(--gold);
  color: var(--bg-base);
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.sp-cta-email:hover {
  background: #d4b45e;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.35);
}


/* ── 20. Hub Page Service Tiles ──────────────────────────────── */

.service-tile {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  text-decoration: none;
  transition: background 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
  position: relative;
}
.service-tile:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.tile-num {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 18px;
}

.tile-title {
  font-family: var(--font-display);
  font-size: clamp(17px, 1.6vw, 21px);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 12px;
  flex: 1;
}

.tile-tagline {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.tile-arrow {
  font-size: 18px;
  color: var(--gold);
  margin-top: auto;
  line-height: 1;
}

.hub-intro {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 600px;
  margin-top: 16px;
}


/* ── 21. Responsive — Overlay + Service Pages ────────────────── */

@media (max-width: 768px) {
  .nav-overlay {
    padding: 72px 28px 40px;
  }
  .nav-overlay-close {
    right: 16px;
  }
  .nav-overlay-link {
    gap: 14px;
    font-size: clamp(20px, 6vw, 28px);
  }
  .sp-section { padding: 48px 0; }
  .sp-cta { padding: 48px 0 0; }
}


/* ── 22. Hub Hero ────────────────────────────────────────────── */

.hub-hero {
  min-height: 72vh;
  display: flex;
  align-items: flex-end;
  padding: 140px 0 88px;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.hub-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13,11,20,0.38) 0%, rgba(13,11,20,0.90) 100%);
}

.hub-hero-content {
  position: relative;
  z-index: 1;
  max-width: min(720px, 78%);
}

.hub-hero-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.hub-hero-title {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.5vw, 68px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--text-primary);
  margin-bottom: 28px;
}

.hub-hero-sub {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.82;
  max-width: 560px;
}

.hub-hero-actions {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.hub-hero-scroll {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}


/* ── 23. Hub Services Section ────────────────────────────────── */

.hub-services {
  padding: 80px 0;
}

.hub-services-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.hub-services-heading {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.hub-services-count {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}


/* ── 24. Service Tile with Photo ─────────────────────────────── */

.tile-img {
  margin: -32px -28px 22px;
  height: 180px;
  overflow: hidden;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  position: relative;
  flex-shrink: 0;
}

.tile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.service-tile:hover .tile-img img {
  transform: scale(1.06);
}

.tile-img::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 72px;
  background: linear-gradient(to bottom, transparent, var(--bg-card));
  pointer-events: none;
}


/* ── 25. Hub Contact Strip ───────────────────────────────────── */

.hub-contact {
  padding: 72px 0;
  border-top: 1px solid var(--border);
}

.hub-contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.hub-contact-text {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 32px);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  max-width: 520px;
  line-height: 1.25;
}


/* ── 26. Page Hero with Background Image ─────────────────────── */

.page-hero.has-bg {
  background-size: cover;
  background-position: center;
}

.page-hero.has-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13,11,20,0.42) 0%, rgba(13,11,20,0.86) 100%);
}


/* ── 27. Responsive — Hub ────────────────────────────────────── */

@media (max-width: 900px) {
  .hub-hero {
    min-height: 60vh;
    padding: 120px 0 72px;
  }
  .hub-contact-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  .hub-hero {
    padding: 100px 0 56px;
  }
  .hub-services {
    padding: 56px 0;
  }
  .tile-img {
    height: 150px;
  }
  .hub-contact {
    padding: 56px 0;
  }
}

/* ─── Directional accent scoping ───────────────────────────── */

html[data-direction="uk-to-china"] { --accent: var(--accent-china); }
html[data-direction="china-to-uk"] { --accent: var(--accent-uk); }

/* ─── Accent application (subtle, editorial) ───────────────── */

html[data-direction] .eyebrow,
html[data-direction] .hub-hero-tag,
html[data-direction] .sp-section-label,
html[data-direction] .nav-overlay-eyebrow {
  color: var(--accent);
}

html[data-direction] .tile-num,
html[data-direction] .ov-num,
html[data-direction] .page-hero .eyebrow {
  color: var(--accent);
}

html[data-direction] .sp-cta-email,
html[data-direction] .cta-btn {
  border-color: var(--accent);
}

html[data-direction] .sp-cta-email:hover,
html[data-direction] .cta-btn:hover {
  color: var(--accent);
}

html[data-direction] .nav-overlay-link.is-active {
  border-left: 2px solid var(--accent);
  padding-left: 16px;
}

.lang-card-btn {
  border-bottom: 1px solid transparent;
  transition: border-color 0.24s ease;
}
.lang-card:hover .lang-card-btn { border-bottom-color: var(--accent-china); }
.lang-card:nth-child(2):hover .lang-card-btn { border-bottom-color: var(--accent-uk); }

/* ─── Hub hero bilingual signature strip ──────────────────── */

.hub-hero-strip {
  position: absolute;
  top: 50%;
  right: clamp(20px, 4vw, 56px);
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(13px, 1.1vw, 16px);
  letter-spacing: 0.32em;
  color: var(--text-muted);
  opacity: 0.78;
  z-index: 2;
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
}

.hub-hero-strip .strip-sep {
  display: inline-block;
  margin: 0.8em 0;
  color: var(--accent);
  font-size: 1.4em;
  line-height: 0;
  transform: translateX(-1px);
}

html[data-direction="china-to-uk"] .hub-hero-strip {
  letter-spacing: 0.5em;
  text-transform: uppercase;
  text-orientation: upright;
  font-weight: 700;
  font-size: clamp(11px, 0.95vw, 14px);
}

@media (max-width: 720px) {
  .hub-hero-strip { display: none; }
}

/* ─── Hub grid: editorial hierarchy ───────────────────────── */

.hub-grid {
  grid-template-columns: 1fr;
  gap: 28px;
}

.service-tile.tile-feature {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 0;
  padding: 0;
  overflow: hidden;
  min-height: 420px;
}
.service-tile.tile-feature .tile-img {
  margin: 0;
  height: 100%;
  min-height: 420px;
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}
.service-tile.tile-feature .tile-img::after {
  inset: 0 0 0 auto;
  width: 30%;
  height: 100%;
  background: linear-gradient(to right, transparent, var(--bg-card));
}
.service-tile.tile-feature .tile-body {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 48px 44px;
  gap: 14px;
}
.service-tile.tile-feature .tile-num   { font-size: clamp(28px, 3vw, 40px); }
.service-tile.tile-feature .tile-title { font-size: clamp(28px, 3.2vw, 42px); line-height: 1.05; }
.service-tile.tile-feature .tile-tagline { font-size: clamp(15px, 1.2vw, 18px); }

.hub-row-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.hub-row-pair .service-tile .tile-img { height: 280px; }

.hub-row-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.hub-row-trio .service-tile .tile-img { height: 220px; }

@media (max-width: 880px) {
  .hub-row-pair,
  .hub-row-trio { grid-template-columns: 1fr; }
  .service-tile.tile-feature {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .service-tile.tile-feature .tile-img {
    min-height: 240px;
    height: 240px;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  }
  .service-tile.tile-feature .tile-img::after {
    inset: auto 0 0 0;
    width: 100%;
    height: 72px;
    background: linear-gradient(to bottom, transparent, var(--bg-card));
  }
  .service-tile.tile-feature .tile-body { padding: 32px 28px; }
}

/* ─── Service-page mid section visual break ───────────────── */

.sp-feature-photo {
  position: relative;
  margin: 88px 0;
  height: clamp(360px, 48vw, 560px);
  overflow: hidden;
  border-radius: var(--radius-xl);
}
.sp-feature-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.02);
}
.sp-feature-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,11,20,0.0) 40%, rgba(13,11,20,0.78) 100%);
  pointer-events: none;
}
.sp-feature-caption {
  position: absolute;
  left: clamp(20px, 4vw, 44px);
  bottom: clamp(20px, 3vw, 32px);
  right: clamp(20px, 4vw, 44px);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(15px, 1.3vw, 19px);
  color: var(--text-primary);
  letter-spacing: 0.01em;
  max-width: 640px;
  z-index: 1;
}

.sp-pullquote {
  margin: 88px 0;
  padding: 56px clamp(28px, 5vw, 64px);
  background: rgba(255,255,255,0.025);
  border-left: 3px solid var(--accent, var(--text-muted));
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}
.sp-pullquote-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 0;
}
.sp-pullquote-text::before { content: '\201C'; margin-right: 0.05em; }
.sp-pullquote-text::after  { content: '\201D'; margin-left: 0.05em; }

@media (max-width: 720px) {
  .sp-feature-photo,
  .sp-pullquote { margin: 56px 0; }
  .sp-pullquote { padding: 36px 24px; }
}

/* ─── What We Offer: editorial numbered list ─────────────── */

.sp-services-list.is-numbered {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  background: transparent;
  border: 0;
}

.sp-services-list.is-numbered .sp-service-item {
  display: grid;
  grid-template-columns: clamp(72px, 8vw, 120px) 1fr;
  gap: clamp(20px, 3vw, 44px);
  align-items: baseline;
  padding: 36px 0;
  border-top: 1px solid var(--border);
  background: transparent;
  border-radius: 0;
}

.sp-services-list.is-numbered .sp-service-item:first-child {
  border-top: 0;
  padding-top: 16px;
}

.sp-services-list.is-numbered .sp-service-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent, var(--text-muted));
  font-variant-numeric: tabular-nums;
}

.sp-services-list.is-numbered .sp-service-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sp-services-list.is-numbered .sp-service-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  color: var(--text-primary);
}

.sp-services-list.is-numbered .sp-service-desc {
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0;
  max-width: 60ch;
}

@media (max-width: 600px) {
  .sp-services-list.is-numbered .sp-service-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 28px 0;
  }
  .sp-services-list.is-numbered .sp-service-num {
    font-size: clamp(32px, 9vw, 44px);
  }
}

/* ===== Top-bar language-switch pill ===== */
.nav-lang-switch {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  padding: 0.45rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
}
.nav-lang-switch:hover,
.nav-lang-switch:focus-visible {
  color: #fff;
  border-color: var(--accent, rgba(255, 255, 255, 0.55));
  background: rgba(255, 255, 255, 0.04);
  outline: none;
}
.nav-lang-switch .nls-arrow {
  margin-left: 0.4rem;
  opacity: 0.55;
}
@media (max-width: 560px) {
  .nav-lang-switch
  {
    padding: 0.4rem 0.7rem;
    font-size: 0.7rem;
  }
  .nav-lang-switch .nls-arrow { display: none; }
}

/* ===== Page breadcrumb (under hero) ===== */
.page-breadcrumb {
  padding: 1.1rem 0;
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.18);
}
.page-breadcrumb .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}
.page-breadcrumb a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.30);
  padding-bottom: 1px;
  transition: color 180ms ease, border-color 180ms ease;
}
.page-breadcrumb a:hover,
.page-breadcrumb a:focus-visible {
  color: #fff;
  border-bottom-color: var(--accent, rgba(255, 255, 255, 0.7));
  outline: none;
}
.page-breadcrumb .bc-sep {
  margin: 0 0.75rem;
  color: rgba(255, 255, 255, 0.20);
}
.page-breadcrumb .bc-current {
  color: rgba(255, 255, 255, 0.55);
  font-weight: 500;
}
@media (max-width: 560px) {
  .page-breadcrumb
  {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    padding: 0.9rem 0;
  }
  .page-breadcrumb .bc-sep { margin: 0 0.55rem; }
}

/* ===== Overlay footer enhancements ===== */
.nav-overlay-footer {
  /* keep existing rule intact; this block adds tweaks layered on top */
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.5rem;
}
.nav-overlay-footer .ovf-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 130px;
}
.nav-overlay-footer .ovf-group-label {
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}
.nav-overlay-footer .ovf-link {
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-display, "Playfair Display"), Georgia, serif;
  font-size: 1.15rem;
  font-style: italic;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
  align-self: flex-start;
}
.nav-overlay-footer .ovf-link:hover {
  color: #fff;
  border-bottom-color: var(--accent, rgba(255, 255, 255, 0.5));
}

/* ===== Trust strip (About page network section) ===== */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 2.5rem;
  padding: 1.75rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.trust-strip-item {
  flex: 1 1 0;
  min-width: 180px;
  padding: 0 1.75rem;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.trust-strip-item:first-child { border-left: none; padding-left: 0; }
.trust-strip-item:last-child  { padding-right: 0; }
.trust-strip-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}
.trust-strip-value {
  font-family: var(--font-display, "Playfair Display"), Georgia, serif;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.92);
  font-style: italic;
}
@media (max-width: 720px) {
  .trust-strip
  {
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.25rem 0;
  }
  .trust-strip-item { border-left: none; padding: 0; }
}

/* ===== Plan 19: Cross-references ===== */

.see-also {
  padding: 56px 0 80px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.see-also-label {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.see-also-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.see-also-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.14);
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}
.see-also-link::after { content: '→'; opacity: 0.5; }
.see-also-link:hover {
  color: #fff;
  border-color: var(--accent);
  background: rgba(255,255,255,0.04);
}

/* ===== Plan 18: Layout variation ===== */

/* Modifier A: wider body — removes max-width cap on text */
.sp-wide .sp-body-text {
  max-width: 820px;
  font-size: 16px;
  line-height: 1.82;
}

/* Modifier B: two-column section — label pinned left, content floats right */
.sp-section.sp-split {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0 60px;
  align-items: start;
}
.sp-section.sp-split .sp-section-label {
  margin-bottom: 0;
  padding-top: 4px;
  position: sticky;
  top: 88px;
}
.sp-section.sp-split > *:not(.sp-section-label) {
  grid-column: 2;
}

/* Modifier C: stat strip — horizontal row of key numbers */
.sp-stat-strip {
  display: flex;
  gap: clamp(32px, 5vw, 72px);
  flex-wrap: wrap;
  padding: 2rem 0 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin: 2rem 0 2.5rem;
}
.sp-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sp-stat-value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1;
  color: rgba(255,255,255,0.88);
  letter-spacing: -0.02em;
}
.sp-stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 720px) {
  .sp-section.sp-split {
    grid-template-columns: 1fr;
  }
  .sp-section.sp-split .sp-section-label {
    position: static;
    margin-bottom: 24px;
  }
  .sp-section.sp-split > *:not(.sp-section-label) {
    grid-column: 1;
  }
}

/* ===== Plan 17: Bilingual sophistication ===== */

/* CJK body text optimisation */
[lang="zh"], [lang="zh-Hans"], [lang="zh-Hant"] {
  font-family: var(--font-body);
  line-height: 1.85;
  letter-spacing: 0.04em;
  text-align: justify;
  text-justify: inter-ideograph;
  -webkit-hyphens: none;
  hyphens: none;
}

/* Mixed-script heading — Latin keyword inside Chinese text */
.mixed-script-label {
  font-family: var(--font-body);
  font-size: 0.78em;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  vertical-align: baseline;
}

/* Vertical text accent — decorative side label */
.vert-label {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.28);
  user-select: none;
  pointer-events: none;
}

/* ZH sub-site accent colour override */
[data-direction="china-to-uk"] {
  --accent: var(--accent-uk);
}
[data-direction="china-to-uk"] ::selection {
  background: rgba(75, 101, 133, 0.32);
}

/* Chinese editorial heading — slightly tighter tracking for display CJK */
[data-direction="china-to-uk"] .hub-hero-title,
[data-direction="china-to-uk"] .sp-title,
[data-direction="china-to-uk"] .editorial-pull {
  letter-spacing: 0.02em;
  font-style: normal;
}

/* ===== Plan 16: Typographic crescendo ===== */

/* Oversized italic pull-quote */
.editorial-pull {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: rgba(255,255,255,0.92);
  max-width: 820px;
  margin: 3rem 0;
}
.editorial-pull em {
  font-style: normal;
  color: var(--gold);
}

/* Large data/number display */
.data-number {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 400;
  font-style: italic;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: rgba(255,255,255,0.12);
  user-select: none;
}
.data-number-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Section lede — larger intro paragraph */
.section-lede {
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  line-height: 1.65;
  color: rgba(255,255,255,0.78);
  max-width: 680px;
  margin-bottom: 2.5rem;
}

/* Ruled heading — thin line above */
.ruled-heading {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 1.5rem;
}

/* ===== Plan 15: Hover & cursor ===== */

/* Enhanced tile hover depth */
.service-tile:hover {
  box-shadow: 0 12px 48px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,255,255,0.08);
}

/* Enhanced CTA glow */
.cta-btn:hover {
  box-shadow: 0 4px 28px rgba(201, 168, 76, 0.48), 0 0 0 1px rgba(201,168,76,0.2);
}

/* Custom cursor — desktop pointer devices only */
@media (hover: hover) and (pointer: fine) {
  html, body, a, button, [role="button"] { cursor: none !important; }

  .cursor-dot {
    position: fixed;
    width: 7px;
    height: 7px;
    background: rgba(255,255,255,0.92);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 180ms ease, height 180ms ease, background 180ms ease, opacity 180ms ease;
    will-change: left, top;
  }
  .cursor-ring {
    position: fixed;
    width: 30px;
    height: 30px;
    border: 1px solid rgba(255,255,255,0.38);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 240ms ease, height 240ms ease, border-color 240ms ease, opacity 240ms ease;
    will-change: left, top;
  }

  .cursor-dot.is-link {
    width: 10px;
    height: 10px;
    background: var(--accent-china);
  }
  [data-direction="china-to-uk"] .cursor-dot.is-link {
    background: var(--accent-uk);
  }
  .cursor-ring.is-link {
    width: 42px;
    height: 42px;
    border-color: rgba(255,255,255,0.22);
  }
  .cursor-dot.is-hidden,
  .cursor-ring.is-hidden { opacity: 0; }
}

/* ===== Plan 14: Image grade ===== */

/* Unified filter on all editorial photos */
.tile-img img,
.sp-feature-photo img {
  filter: contrast(1.06) saturate(0.88) brightness(0.94);
}

/* Brand-tinted colour grade on background-image heroes */
.hub-hero::after,
.page-hero.has-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(13, 11, 20, 0.18);
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 0;
}

/* Ensure hero content stays above colour grade */
.hub-hero-content,
.page-hero-content,
.page-hero > .container {
  position: relative;
  z-index: 2;
}

/* ===== 404 page ===== */
body.page-404 {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-base, #0d0d12);
  color: rgba(255, 255, 255, 0.92);
}
.nf-stage {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 6rem 0;
}
.nf-wrap {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.nf-num {
  font-family: var(--font-display, "Playfair Display"), Georgia, serif;
  font-size: clamp(7rem, 18vw, 14rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.08);
  margin-bottom: 1.5rem;
  user-select: none;
}
.nf-title {
  font-family: var(--font-display, "Playfair Display"), Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
  font-weight: 400;
  margin: 0 0 1.5rem;
  color: rgba(255, 255, 255, 0.96);
}
.nf-title em {
  font-style: italic;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.78em;
}
.nf-body-en, .nf-body-zh {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  max-width: 560px;
  margin: 0 auto 0.85rem;
}
.nf-body-zh { color: rgba(255, 255, 255, 0.55); }
.nf-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2.5rem 0 1.75rem;
}
.nf-pill {
  display: inline-flex;
  align-items: center;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  padding: 0.7rem 1.3rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
}
.nf-pill:hover, .nf-pill:focus-visible {
  color: #fff;
  border-color: var(--accent-china, #c5462a);
  background: rgba(255, 255, 255, 0.04);
  outline: none;
}
.nf-pill[lang="zh-Hans"]:hover, .nf-pill[lang="zh-Hans"]:focus-visible {
  border-color: var(--accent-uk, #4b6585);
}
.nf-tail {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
}
.nf-tail a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease;
}
.nf-tail a:hover { border-bottom-color: rgba(255, 255, 255, 0.5); }
.nf-tail .nf-sep { margin: 0 0.65rem; color: rgba(255, 255, 255, 0.2); }
@media (max-width: 560px) {
  .nf-actions { flex-direction: column; align-items: stretch; }
  .nf-pill { justify-content: center; }
}