/*
 * SBSES — site styles.
 * Every colour below is taken from the Owner's visual reference (reference/ folder:
 * the 1440 hero and the full-page concept). Do not introduce colours that are not listed here.
 */
:root {
  /* plum ground */
  --plum-950: #1B1422;      /* contact + footer ground */
  --plum-900: #231A2B;      /* page ground, hero edges */
  --plum-800: #2C2035;      /* hero mid-tone, "Why" band, ink on light surfaces */
  --plum-700: #45344F;      /* section borders, body text on blush */
  --plum-500: #6A5778;      /* hairlines on plum */
  --plum-glow: #4B3659;     /* hero glow centre */
  --plum-wave: #3A2A47;     /* wave fill (60% opacity) */
  --plum-wave-line: #B79AC9;/* wave hairlines (60% opacity) */
  --plum-tag: #3A2B46;      /* service tag fill */

  /* rose gold / champagne */
  --rose: #DFC3B3;          /* buttons, logo mark, flourish, numerals, orbit lines */
  --cream: #F1E4DC;         /* headlines, tag text, About ground */
  --text: #EFE2DA;          /* nav and default text */
  --text-soft: #E3D6DE;     /* strapline */
  --text-muted: #CDBFCB;    /* body paragraphs */
  --text-tagline: #D9CCD6;  /* brand tagline */
  --line: #CBB9C6;          /* outline button border */
  --line-soft: #BFA9B8;     /* tag / small outline border */

  /* on the blush (About) surface */
  --bronze: #8E6F62;        /* arch outline (also ledger outline) */
  --bronze-ink: #6B4F45;    /* eyebrow on blush */
  --plum-note: #5A4868;     /* placeholder note on blush */

  --font-display: "Cormorant Garamond", "Cormorant", Georgia, "Times New Roman", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-body: "DM Sans", "Segoe UI", system-ui, -apple-system, Arial, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;

  --gutter: clamp(20px, 5.556vw, 80px);
  --section-space: clamp(64px, 6.667vw, 96px);
}

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

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

body {
  margin: 0;
  background: var(--plum-900);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
svg { display: block; }
img { display: block; max-width: 100%; }

:focus-visible { outline: 2px solid var(--cream); outline-offset: 3px; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 10;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--rose);
  color: var(--plum-800);
  font-weight: 500;
}
.skip-link:focus { top: 16px; }

.wrap {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.icon { width: 22px; height: 22px; flex: none; }

.flourish { width: min(300px, 70%); height: 16px; color: var(--rose); }

/* ---------- buttons (capsule) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-radius: 999px;
  font-family: inherit;
  line-height: 1.5;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}
.btn--rose { background: var(--rose); color: var(--plum-800); font-weight: 500; border: 0; }
.btn--rose:hover { background: var(--cream); }
.btn--outline { background: transparent; color: var(--text); border: 1.5px solid var(--line); }
.btn--outline:hover { border-color: var(--cream); color: var(--cream); }
.btn--lg { font-size: 19px; padding: 16px 34px; }
.btn--lg .icon--arrow { width: 20px; height: 20px; }
.btn--sm { font-size: 15px; padding: 13px 22px; gap: 10px; }
.btn--sm.btn--outline { border-width: 1px; border-color: var(--line-soft); padding: 12px 20px; }
.btn--sm .icon--arrow { width: 18px; height: 18px; }

/* unavailable until the Owner supplies real contact details */
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn--rose:disabled:hover { background: var(--rose); }
.btn--outline:disabled:hover { border-color: var(--line); color: var(--text); }

/* disabled control with an explanatory hint (Client Login) */
.btn[aria-disabled="true"] { position: relative; cursor: not-allowed; }
.btn[aria-disabled="true"]:hover { border-color: var(--line-soft); color: var(--text); }
.btn[aria-disabled="true"]::after {
  content: attr(data-hint);
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  padding: 8px 14px;
  border-radius: 12px;
  background: var(--plum-tag);
  border: 1px solid var(--line-soft);
  color: var(--cream);
  font-size: 13px;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 5;
}
.btn[aria-disabled="true"]:hover::after,
.btn[aria-disabled="true"]:focus-visible::after,
.btn[aria-disabled="true"].is-hinting::after { opacity: 1; transform: none; }

/* ---------- hero shell ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 900px;
  background: radial-gradient(circle at 72% 52%, var(--plum-glow) 0%, var(--plum-800) 42%, var(--plum-900) 75%);
}

.hero__wave { position: absolute; left: 0; bottom: 0; width: 100%; height: 260px; }
.hero__wave-fill { fill: var(--plum-wave); opacity: .6; }
.hero__wave-line { stroke: var(--plum-wave-line); stroke-width: 1.2; opacity: .6; vector-effect: non-scaling-stroke; }

/* ---------- header ---------- */
.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 30px;
}

.brand { display: flex; align-items: center; gap: 14px; }
.brand__mark { width: 52px; height: 52px; color: var(--rose); flex: none; }
.brand__text { display: flex; flex-direction: column; }
.brand__short {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  letter-spacing: 2px;
  line-height: 1;
  color: var(--text);
}
.brand__full { margin-top: 4px; font-size: 14px; line-height: 1.5; color: var(--text-tagline); white-space: nowrap; }

.nav-toggle { display: none; }
.site-header__menu { display: contents; }

.nav__list { display: flex; align-items: center; gap: 34px; }
.nav__link {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  line-height: 1.5;
  white-space: nowrap;
  border-bottom: 1.5px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}
.nav__link:hover { color: #FFFFFF; }
.nav__link[aria-current] { border-bottom-color: var(--rose); }

.site-header__actions { display: flex; align-items: center; gap: 12px; }

/* ---------- hero body ---------- */
.hero__body:focus { outline: none; }
.hero__body {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 720px;
}

.hero__copy {
  flex: 1 1 0;
  min-width: 0;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 26px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(46px, 5.972vw, 86px);
  font-weight: 600;
  line-height: 1.04;
  text-transform: uppercase;
  color: var(--cream);
}
.hero__title-line { display: block; white-space: nowrap; }

.hero__copy .flourish { width: 300px; max-width: 80%; }

.hero__strapline { font-size: 24px; line-height: 1.5; color: var(--text-soft); }

.hero__intro { margin-top: -8px; max-width: 470px; font-size: 17px; line-height: 1.5; color: var(--text-muted); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 14px; }

/* ---------- hero scene (Owner's 3D render) + glowing service tags ---------- */
.hero__art {
  position: relative;
  flex: none;
  width: min(740px, 51.4vw);
  aspect-ratio: 740 / 660;
  /* tag sizes follow the width of this box (cqw units below) */
  container-type: inline-size;
}
/* the render sits on the left of the box; its ring and glowing nodes reach the tag column */
.hero__scene img {
  position: absolute;
  left: 0;
  top: 50%;
  width: 75.7%;
  height: auto;
  transform: translateY(-50%);
}

.hero__tags {
  position: absolute;
  right: 0;
  top: 50%;
  width: max-content;
  min-width: 30.6%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 22px;
  gap: clamp(10px, 2.9cqw, 22px);
}
.tag {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  padding: clamp(8px, 1.9cqw, 14px) clamp(11px, 2.4cqw, 18px);
  border-radius: 999px;
  /* plum glass with a rose-gold rim and soft glow, all from the site palette */
  background: linear-gradient(180deg, #4D3B59 0%, #2C2035 58%, #231A2B 100%);
  border: 1.5px solid rgba(223, 195, 179, .9);
  box-shadow:
    0 0 22px rgba(223, 195, 179, .3),
    0 8px 20px rgba(27, 20, 34, .55),
    inset 0 1px 0 rgba(241, 228, 220, .4),
    inset 0 -10px 16px rgba(27, 20, 34, .35);
  color: var(--cream);
  font-size: 17px;
  font-size: clamp(12px, 2.3cqw, 17px);
  line-height: 1.5;
  white-space: nowrap;
}
.tag .icon { width: 22px; height: 22px; width: clamp(15px, 3cqw, 22px); height: clamp(15px, 3cqw, 22px); }

/* ---------- shared section pieces ---------- */
.section { padding-block: var(--section-space); }

.section__head { display: flex; flex-direction: column; gap: 10px; }
.section__head--split {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px 48px;
}
.section__head--split > div { display: flex; flex-direction: column; gap: 10px; }

.eyebrow {
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--rose);
}
.eyebrow--ink { color: var(--bronze-ink); }

.section__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 3.778vw, 54.4px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--cream);
}
.section__title--xl { font-size: clamp(42px, 4.444vw, 64px); line-height: 1.05; }

.section__intro { max-width: 420px; font-size: 17px; color: var(--text-muted); }

/* ---------- services: editorial, staggered two-column list ---------- */
.services { padding-bottom: calc(var(--section-space) - 24px); }

.services__list {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 72px;
}
.service {
  grid-row-end: span 2;
  align-self: start;
  display: flex;
  gap: 28px;
  padding: 30px 0 48px;
  border-top: 1px solid var(--plum-500);
}
.service:nth-child(odd)  { grid-column: 1; }
.service:nth-child(even) { grid-column: 2; }
.service:nth-child(1) { grid-row-start: 1; }
.service:nth-child(2) { grid-row-start: 2; }
.service:nth-child(3) { grid-row-start: 3; }
.service:nth-child(4) { grid-row-start: 4; }
.service:nth-child(5) { grid-row-start: 5; }

.service__number {
  flex: none;
  min-width: 58px;
  font-family: var(--font-display);
  font-size: 60px;
  font-style: italic;
  font-weight: 500;
  line-height: .9;
  color: var(--rose);
}
.service__body { display: flex; flex-direction: column; gap: 10px; }
.service__title { font-family: var(--font-display); font-size: 34px; font-weight: 600; line-height: 1.15; }
.service__text { font-size: 16px; color: var(--text-muted); }

/* ---------- why ---------- */
.band { background: var(--plum-800); border-block: 1px solid var(--plum-700); }
.why .section { padding-block: clamp(60px, 6.111vw, 88px); display: flex; flex-direction: column; gap: 48px; }

.why__list, .process__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px 32px;
}
.why__item { display: flex; flex-direction: column; gap: 10px; padding-left: 24px; border-left: 1px solid var(--rose); }
.why__item-title { font-family: var(--font-display); font-size: 28px; font-weight: 600; line-height: 1.3; }
.why__item-text { font-size: 16px; color: var(--text-muted); }

/* ---------- how it works ---------- */
.process { display: flex; flex-direction: column; gap: 48px; }

.step { display: flex; flex-direction: column; gap: 8px; padding-top: 22px; border-top: 1px solid var(--rose); }
.step__number {
  font-family: var(--font-display);
  font-size: 44px;
  font-style: italic;
  font-weight: 500;
  line-height: 1;
  color: var(--rose);
}
.step__title { font-size: 20px; font-weight: 500; line-height: 1.4; }
.step__text { font-size: 15px; color: var(--text-muted); }

.notice {
  max-width: 760px;
  padding: 16px 22px;
  border: 1px solid var(--plum-500);
  border-radius: 16px;
  font-size: 15px;
  color: var(--text-muted);
}

/* ---------- about (blush surface) ---------- */
.about { background: var(--cream); color: var(--plum-800); }
.about__inner { display: flex; align-items: center; gap: 64px; }

.about__media {
  flex: 0 1 380px;
  min-width: 260px;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  border: 1px solid var(--bronze);
  border-radius: 200px 200px 0 0;
  text-align: center;
}
.about__media img { width: calc(100% + 48px); max-width: none; height: calc(100% + 48px); margin: -24px; object-fit: cover; }
.about__placeholder { font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--plum-note); }
.about__placeholder span { display: block; }

.about__copy { flex: 1 1 440px; display: flex; flex-direction: column; gap: 20px; }
.about .section__title { color: var(--plum-800); }
.about__title-line { display: block; }
.about__title-line--accent { font-style: italic; font-weight: 500; }
.about__text { display: flex; flex-direction: column; gap: 20px; }
.about__text p { max-width: 560px; font-size: 17px; color: var(--plum-700); }

/* ---------- knowledge centre (coming soon) ---------- */
.knowledge {
  padding-block: clamp(60px, 6.111vw, 88px);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}
.knowledge .section__head { flex: 1 1 360px; gap: 12px; }
.knowledge__list { flex: 1 1 420px; max-width: 650px; }
.knowledge__item {
  padding: 18px 0;
  border-top: 1px solid var(--plum-500);
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.55;
}
.knowledge__item:last-child { border-bottom: 1px solid var(--plum-500); }

/* ---------- contact ---------- */
.contact { background: var(--plum-950); border-top: 1px solid var(--plum-700); }
.contact__inner {
  padding-block: clamp(72px, 7.222vw, 104px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  text-align: center;
}
.contact__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.111vw, 73.6px);
  font-weight: 600;
  line-height: 1.05;
  color: var(--cream);
}
.contact__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; }
.contact__actions .btn--lg { font-size: 18px; }
.contact__note { display: flex; flex-direction: column; gap: 4px; font-size: 14px; letter-spacing: 1px; color: var(--text-muted); }

/* ---------- footer ---------- */
.site-footer { background: var(--plum-950); border-top: 1px solid var(--plum-700); }
.site-footer__inner {
  padding-block: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 32px;
  font-size: 14px;
  color: var(--text-muted);
}
.site-footer__brand {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text);
}
.site-footer a { text-decoration: underline; text-underline-offset: 3px; }
.site-footer a:hover { color: var(--cream); }

/* =====================================================================
   Responsive
   ===================================================================== */

/* laptop widths (1280 / 1366): the full navigation stays, with tighter gutters and gaps
   so brand + six links + two buttons fit on one line */
@media (min-width: 1240px) and (max-width: 1439.98px) {
  :root { --gutter: calc(48px + (100vw - 1240px) * 0.16); }
  .site-header { gap: 12px; }
  .nav__list { gap: calc(20px + (100vw - 1240px) * 0.07); }
  .site-header__actions { gap: 10px; }
  .site-header .btn--sm { padding: 12px 16px; }
  .site-header .btn--sm.btn--outline { padding: 11px 16px; }
}

/* two-column hero under a collapsed menu: keep the headline clear of the illustration */
@media (min-width: 1100px) and (max-width: 1239.98px) {
  .hero__title { font-size: 5.2vw; }
  .hero__art { width: 48vw; }
}

/* short desktop windows (typical laptops): scale the first screen to the window height so
   the headline and both buttons stay above the fold. Does not apply at 900px tall and up. */
@media (min-width: 1100px) and (max-height: 820px) {
  .hero { min-height: 0; }
  .hero__body { min-height: max(440px, calc(100vh - 125px)); }
  .hero__copy { gap: 20px; }
}
@media (min-width: 1240px) and (max-height: 820px) {
  .hero__title { font-size: min(5.972vw, 8.8vh, 86px); }
  .hero__art { width: min(740px, 51.4vw, calc((100vh - 125px) * 1.12)); }
}
@media (min-width: 1100px) and (max-width: 1239.98px) and (max-height: 820px) {
  .hero__title { font-size: min(5.2vw, 8.8vh); }
  .hero__art { width: min(48vw, calc((100vh - 113px) * 1.12)); }
}

/* collapse the navigation into a menu */
@media (max-width: 1239.98px) {
  .site-header { flex-wrap: wrap; gap: 16px 24px; padding-block: 24px; }
  .nav-toggle { display: inline-flex; }

  .site-header__menu {
    display: none;
    flex: 1 0 100%;
    flex-direction: column;
    gap: 20px;
    padding: 8px 0 12px;
  }
  .site-header__menu.is-open { display: flex; }

  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__list li { border-top: 1px solid var(--plum-700); }
  .nav__list li:last-child { border-bottom: 1px solid var(--plum-700); }
  .nav__link { padding: 13px 0; border-bottom: 0; font-size: 17px; }
  .nav__link[aria-current] { color: var(--rose); }

  .site-header__actions { flex-wrap: wrap; }
  .btn[aria-disabled="true"]::after { right: auto; left: 0; }
}

/* stack the hero */
@media (max-width: 1099.98px) {
  .hero { min-height: 0; }
  .hero__body {
    flex-direction: column;
    align-items: stretch;
    gap: 40px;
    min-height: 0;
    padding-block: 32px 150px;
  }
  .hero__copy { flex: none; max-width: 640px; }
  .hero__title { font-size: clamp(38px, 11.8vw, 78px); }
  .hero__art { align-self: center; width: min(100%, 640px); }

  .why__list, .process__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about__inner { gap: 48px; }
}

@media (max-width: 899.98px) {
  .services__list { display: block; margin-top: 40px; }
  .service { padding: 26px 0 36px; }

  .knowledge { flex-direction: column; align-items: stretch; }
  .knowledge .section__head, .knowledge__list { flex: none; max-width: none; }

  .about__inner { flex-direction: column; align-items: flex-start; }
  .about__media { flex: none; width: min(100%, 340px); }
  .about__copy { flex: none; }

  .site-footer__inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 599.98px) {
  body { font-size: 16px; }

  .brand { gap: 10px; }
  .brand__mark { width: 42px; height: 42px; }
  .brand__short { font-size: 32px; }
  .brand__full { font-size: 12px; }
  .nav-toggle.btn--sm { padding: 10px 16px; }

  .hero__wave { height: 150px; }
  .hero__body { gap: 32px; padding-block: 20px 96px; }
  .hero__copy { gap: 22px; }
  .hero__strapline { font-size: 18px; }
  .hero__intro { font-size: 16px; }
  .hero__actions { gap: 12px; align-self: stretch; }
  .hero__actions .btn, .contact__actions .btn { flex: 1 1 auto; }
  .btn--lg, .contact__actions .btn--lg { font-size: 17px; padding: 14px 24px; }

  /* phone: the render takes the full width, tags wrap underneath it */
  .hero__art { aspect-ratio: auto; display: flex; flex-direction: column; gap: 22px; }
  .hero__scene img { position: static; width: 100%; transform: none; }
  .hero__tags { position: static; width: auto; transform: none; flex-direction: row; flex-wrap: wrap; gap: 10px; }
  .tag { flex: 1 1 auto; justify-content: center; gap: 8px; padding: 10px 14px; font-size: 14px; }
  .tag .icon { width: 18px; height: 18px; }

  .service { gap: 18px; }
  .service__number { min-width: 44px; font-size: 46px; }
  .service__title { font-size: 28px; }

  .why__list, .process__list { grid-template-columns: 1fr; gap: 32px; }
  .why .section, .process { gap: 36px; }

  .knowledge__item { font-size: 23px; padding: 16px 0; }
  .contact__actions { align-self: stretch; gap: 12px; }
  .contact__note { letter-spacing: .5px; }
}

/* very narrow phones */
@media (max-width: 399.98px) {
  /* icon-only menu button; the label stays available to screen readers */
  .nav-toggle__label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .nav-toggle.btn--sm { position: relative; padding: 11px 14px; }
}
@media (max-width: 359.98px) {
  .tag { gap: 6px; padding: 9px 10px; font-size: 13px; }
  .tag .icon { width: 16px; height: 16px; }
}

/* ---------- 404 page ---------- */
.notfound {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 72% 52%, var(--plum-glow) 0%, var(--plum-800) 42%, var(--plum-900) 75%);
}
.notfound__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
  padding-block: 48px 120px;
}
.notfound__text { max-width: 470px; color: var(--text-muted); }

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

/* =====================================================================
   Language switch + Chinese typography
   ===================================================================== */

/* small utility link in the header's top margin: adds no width to the navigation row */
.lang-switch {
  position: absolute;
  top: 2px;
  right: var(--gutter);
  z-index: 3;
  display: flex;
  align-items: center;
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: .5px;
}
.lang-switch__link {
  padding: 5px 9px;
  color: var(--text-muted);
  transition: color .2s ease;
}
.lang-switch__link + .lang-switch__link { border-left: 1px solid var(--plum-500); }
.lang-switch__link:hover { color: var(--cream); }
.lang-switch__link[aria-current] { color: var(--rose); font-weight: 500; }

/* Chinese: looser leading, no faux italics, no letter-case transforms */
html[lang="zh-Hans"] body { line-height: 1.7; }
html[lang="zh-Hans"] .hero__title { line-height: 1.2; letter-spacing: .02em; text-transform: none; }
html[lang="zh-Hans"] .section__title,
html[lang="zh-Hans"] .contact__title,
html[lang="zh-Hans"] .service__title,
html[lang="zh-Hans"] .why__item-title { line-height: 1.3; }
html[lang="zh-Hans"] .about__title-line--accent { font-style: normal; color: var(--bronze-ink); }
html[lang="zh-Hans"] .eyebrow { letter-spacing: 5px; }
html[lang="zh-Hans"] .hero__strapline,
html[lang="zh-Hans"] .hero__intro { line-height: 1.6; }
html[lang="zh-Hans"] .hero__intro { max-width: 520px; }
/* avoid a single stranded character on the last line of Chinese paragraphs */
html[lang="zh-Hans"] p, html[lang="zh-Hans"] .notice { text-wrap: pretty; }
/* =====================================================================
   Knowledge Centre (home teaser + knowledge.html)
   ===================================================================== */

/* home teaser */
.knowledge__teaser { max-width: 420px; font-size: 16px; color: var(--text-muted); }
.knowledge__cta { align-self: flex-start; margin-top: 12px; font-size: 17px; padding: 13px 26px; }
.knowledge__item { padding: 0; }
.knowledge__item a { display: block; padding: 18px 0; transition: color .2s ease, padding-left .2s ease; }
.knowledge__item a:hover { color: var(--rose); padding-left: 8px; }

/* inner-page top band */
.page-top {
  background: radial-gradient(circle at 78% 0%, var(--plum-glow) 0%, var(--plum-800) 46%, var(--plum-900) 82%);
  border-bottom: 1px solid var(--plum-700);
}
.page-hero { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; padding-block: clamp(28px, 4vw, 56px) clamp(48px, 5.5vw, 80px); }
.page-hero__title {
  max-width: 900px;
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 600;
  line-height: 1.08;
  color: var(--cream);
  text-wrap: balance;
}
.page-hero__intro { max-width: 640px; font-size: 18px; color: var(--text-muted); }

.kc { padding-block: clamp(40px, 5vw, 72px) var(--section-space); display: flex; flex-direction: column; gap: clamp(36px, 4vw, 56px); }

/* topic filter */
.kc-filter { display: flex; flex-wrap: wrap; gap: 10px; }
.kc-chip {
  padding: 10px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.kc-chip:hover { border-color: var(--cream); color: var(--cream); }
.kc-chip[aria-current] { background: var(--rose); border-color: var(--rose); color: var(--plum-800); font-weight: 500; }

/* article list: editorial rows, no cards */
.kc-list { display: flex; flex-direction: column; }
.kc-card { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; padding: 30px 0 34px; border-top: 1px solid var(--plum-500); }
.kc-card:last-child { border-bottom: 1px solid var(--plum-500); }
.kc-card__title { font-family: var(--font-display); font-size: clamp(28px, 2.7vw, 38px); font-weight: 600; line-height: 1.15; color: var(--cream); }
.kc-card__title a:hover { color: var(--rose); }
.kc-card__summary { max-width: 720px; font-size: 17px; color: var(--text-muted); }
.kc-card__more { margin-top: 4px; font-size: 15px; color: var(--rose); border-bottom: 1px solid transparent; }
.kc-card__more:hover { border-bottom-color: var(--rose); }

.kc-meta { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 13px; letter-spacing: .5px; color: var(--text-muted); }
.kc-meta__topic { color: var(--rose); text-transform: uppercase; letter-spacing: 2px; }

.kc-empty { max-width: 720px; padding: 28px 0; border-block: 1px solid var(--plum-500); font-size: 18px; color: var(--text-soft); }
.kc-draft { padding: 4px 12px; border: 1px dashed var(--rose); border-radius: 999px; font-size: 13px; color: var(--rose); }

/* official sources */
.kc-sources { display: flex; flex-direction: column; gap: 14px; }
.kc-sources__title { font-family: var(--font-display); font-size: clamp(30px, 3vw, 42px); font-weight: 600; line-height: 1.15; color: var(--cream); }
.kc-sources__intro { max-width: 640px; font-size: 16px; color: var(--text-muted); }
.kc-sources__grid { margin-top: 18px; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 32px 28px; }
.kc-sources__group { padding-left: 22px; border-left: 1px solid var(--rose); }
.kc-sources__group-title { margin-bottom: 10px; font-family: var(--font-display); font-size: 24px; font-weight: 600; line-height: 1.3; }
.kc-sources__links { display: flex; flex-direction: column; gap: 8px; font-size: 15px; }
.kc-sources__links a { color: var(--text-soft); text-decoration: underline; text-decoration-color: var(--plum-500); text-underline-offset: 4px; }
.kc-sources__links a:hover { color: var(--cream); text-decoration-color: var(--rose); }

.kc-disclaimer { max-width: 860px; }

/* single article */
.kc-article { display: flex; flex-direction: column; align-items: flex-start; gap: 24px; max-width: 760px; }
.kc-back { font-size: 15px; color: var(--rose); border-bottom: 1px solid transparent; }
.kc-back:hover { border-bottom-color: var(--rose); }
.kc-article__body { display: flex; flex-direction: column; gap: 18px; font-size: 18px; color: var(--text-soft); }
.kc-article__body h2,
.kc-article__sources h2 { margin-top: 14px; font-family: var(--font-display); font-size: 30px; font-weight: 600; line-height: 1.2; color: var(--cream); }
.kc-article__body ul { display: flex; flex-direction: column; gap: 10px; padding-left: 4px; }
.kc-article__body li { position: relative; padding-left: 26px; }
.kc-article__body li::before { content: ""; position: absolute; left: 0; top: .72em; width: 12px; height: 1px; background: var(--rose); }
.kc-article__sources { display: flex; flex-direction: column; gap: 12px; }

html[lang="zh-Hans"] .page-hero__title,
html[lang="zh-Hans"] .kc-card__title,
html[lang="zh-Hans"] .kc-sources__title,
html[lang="zh-Hans"] .kc-article__body h2 { line-height: 1.3; }
html[lang="zh-Hans"] .kc-meta__topic { letter-spacing: 1px; }

@media (max-width: 599.98px) {
  .page-hero__intro, .kc-article__body { font-size: 16px; }
  .kc-chip { padding: 9px 14px; font-size: 14px; }
  .kc-card { padding: 24px 0 28px; }
  .kc-sources__grid { grid-template-columns: 1fr; gap: 26px; }
}
/* ---------- Knowledge Centre: infographic articles ---------- */
.kc-figure { display: block; width: 100%; max-width: 560px; border: 1px solid var(--plum-500); border-radius: 14px; overflow: hidden; }
.kc-figure img { width: 100%; height: auto; }
.kc-figure:hover { border-color: var(--rose); }

.kc-card--media { display: grid; grid-template-columns: minmax(0, 1fr) 132px; column-gap: 32px; align-items: start; justify-items: start; }
.kc-card--media > * { grid-column: 1; }
.kc-card--media > .kc-card__thumb { grid-column: 2; grid-row: 1 / span 6; justify-self: end; width: 132px; border: 1px solid var(--plum-500); border-radius: 10px; overflow: hidden; }
.kc-card__thumb img { width: 100%; height: auto; }
.kc-card__thumb:hover { border-color: var(--rose); }
@media (max-width: 599.98px) {
  .kc-card--media { grid-template-columns: minmax(0, 1fr) 84px; column-gap: 16px; }
  .kc-card--media > .kc-card__thumb { width: 84px; border-radius: 8px; }
}
/* ---------- About: brand mark in the arch when no photo is supplied ---------- */
.about__media--mark { flex-direction: column; gap: 14px; color: var(--bronze); }
.about__media--mark svg { width: 46%; height: auto; }
.about__mark-name { font-family: var(--font-display); font-size: 34px; font-weight: 600; letter-spacing: 6px; line-height: 1; color: var(--plum-800); padding-left: 6px; }