/* ============================================================
   日瑩 Jocund Year — Corporate Website
   Built entirely on the design-system tokens (styles.css).
   Aesthetic: Blue Bottle whitespace · % Arabica philosophy ·
   Apple showcase · MUJI restraint. Orange is accent only.
   ============================================================ */

html { scroll-behavior: smooth; }
body { background: var(--surface-page); color: var(--text-primary); overflow-x: hidden; }
.jy { min-height: 100%; }

/* warm-white page tint — keeps it from feeling clinical */
:root {
  --warm-white: #fcfbf9;
  --warm-2: #f7f5f2;
  --hairline: #ebe9e5;
  --measure: 620px;
  /* Inter as the Latin/English face — minimalist; CJK keeps Mincho/Gothic */
  --font-sans: 'Inter', 'Hanken Grotesk', 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', -apple-system, system-ui, sans-serif;
}
body { background: var(--warm-white); }

.jy-wrap   { max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.jy-wrap-w { max-width: var(--container-wide); margin-inline: auto; padding-inline: var(--gutter); }

/* ====================  REVEAL  ==================== */
[data-reveal] {
  opacity: 0; transform: translateY(22px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal-d="1"] { transition-delay: 90ms; }
[data-reveal-d="2"] { transition-delay: 180ms; }
[data-reveal-d="3"] { transition-delay: 270ms; }
[data-reveal-d="4"] { transition-delay: 360ms; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ====================  PLACEHOLDERS (type & colour first)  ==================== */
.jy-ph {
  position: relative; overflow: hidden;
  background: linear-gradient(150deg, var(--warm-2) 0%, #efece7 52%, #e9e5df 100%);
  display: flex; align-items: flex-end;
  color: var(--ink-500);
}
.jy-ph::after {
  content: ""; position: absolute; inset: 14px; border: 1px solid rgba(29,29,31,.07);
  pointer-events: none;
}
.jy-ph::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 80% at 78% 16%, rgba(255,255,255,.55), transparent 60%);
  pointer-events: none;
}
.jy-ph__cap {
  position: relative; z-index: 1; padding: 22px 24px;
  display: flex; flex-direction: column; gap: 3px;
}
.jy-ph__cap b { font-family: var(--font-display); font-weight: 500; font-size: var(--text-lg); color: var(--ink-700); letter-spacing: .04em; }
.jy-ph__cap span { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--ink-400); }
.jy-ph__idx { position: absolute; top: 22px; left: 24px; z-index: 1; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--orange-600); letter-spacing: .12em; }
.jy-ph--tall  { aspect-ratio: 4/5; }
.jy-ph--port  { aspect-ratio: 3/4; }
.jy-ph--wide  { aspect-ratio: 16/10; }
.jy-ph--cine  { aspect-ratio: 21/9; }
.jy-ph--sq    { aspect-ratio: 1/1; }

/* ====================  HEADER  ==================== */
.jy-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.jy-header.is-solid {
  background: color-mix(in srgb, var(--warm-white) 86%, transparent);
  backdrop-filter: blur(16px) saturate(1.2); -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--hairline);
}
.jy-header__in {
  max-width: var(--container-wide); margin-inline: auto; padding: 20px var(--gutter);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--space-5);
  transition: padding var(--dur-base) var(--ease-out);
}
.jy-header.is-solid .jy-header__in { padding-block: 13px; }
.jy-nav { display: flex; gap: var(--space-6); }
.jy-nav a {
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-cjk); color: var(--text-primary); position: relative; padding: 4px 0; white-space: nowrap;
}
.jy-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -1px; width: 0; height: 1px;
  background: var(--orange-500); transition: width var(--dur-base) var(--ease-out);
}
.jy-nav a:hover { color: var(--orange-700); }
.jy-nav a:hover::after, .jy-nav a[aria-current="page"]::after { width: 100%; }
.jy-nav a[aria-current="page"] { color: var(--orange-700); }

.jy-brand { display: inline-flex; align-items: center; gap: 11px; justify-self: center; }
.jy-brand__sym { width: 26px; height: auto; }
.jy-brand__sym--solo { width: 34px; }
.jy-brand__zh  { font-family: var(--font-display); font-weight: 500; font-size: 23px; letter-spacing: .12em; color: var(--ink-900); line-height: 1; }
.jy-header__r { display: flex; align-items: center; gap: var(--space-4); justify-self: end; }
.jy-header__en { font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-medium); letter-spacing: .14em; color: var(--text-secondary); }
.jy-header__en:hover { color: var(--orange-700); }
.jy-iconbtn.jy-burger { display: none; }
.jy-iconbtn.jy-burger--right { display: inline-flex; }

/* ====================  HERO (immersive craft reel)  ==================== */
.jy-hero { position: relative; height: 100svh; min-height: 640px; overflow: hidden; background: #efece7; }
.jy-reel { position: absolute; inset: 0; }
.jy-reel__f {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1600ms var(--ease-inout);
  background-size: cover; background-position: center;
  pointer-events: none; /* only the visible frame accepts photo drops */
}
.jy-reel__f.is-on { opacity: 1; pointer-events: auto; }
.jy-reel__f image-slot { font-family: var(--font-sans); }
.jy-reel__f::after { /* slow ken-burns wash */ content:""; position:absolute; inset:0; }
.jy-reel__cap {
  position: absolute; left: clamp(1.25rem,5vw,4rem); bottom: clamp(1.5rem,4vw,2.5rem); z-index: 4;
  display: flex; align-items: center; gap: 14px; color: #fff;
}
.jy-reel__cap b { font-family: var(--font-display); font-weight: 500; font-size: var(--text-md); letter-spacing: .06em; text-shadow: 0 1px 14px rgba(0,0,0,.45); }
.jy-reel__cap span { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .14em; opacity: .82; text-shadow: 0 1px 12px rgba(0,0,0,.5); }
.jy-reel__dots { position: absolute; right: clamp(1.25rem,5vw,4rem); bottom: clamp(1.6rem,4vw,2.7rem); z-index: 4; display: flex; gap: 8px; }
.jy-reel__dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,.45); transition: all var(--dur-base) var(--ease-out); }
.jy-reel__dot.is-on { background: var(--orange-500); width: 20px; border-radius: 3px; }
.jy-hero__scrim {
  position: absolute; inset: 0; z-index: 2; pointer-events: none; /* let drops fall through to the reel */
  background:
    linear-gradient(180deg, rgba(252,251,249,.86) 0%, rgba(252,251,249,.34) 30%, rgba(20,18,15,.0) 52%, rgba(20,18,15,.28) 100%);
}
.jy-hero__in {
  position: relative; z-index: 3; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: clamp(2rem,8vh,5rem) var(--gutter) 0;
  /* nudge the whole title/sub/button group below the vertical centre */
  transform: translateY(-8vh);
  pointer-events: none; /* drops pass through empty hero areas to the reel slot */
}
.jy-hero__in a, .jy-hero__in button { pointer-events: auto; }
.jy-reel__cap { pointer-events: none; }
.jy-hero__eye { margin-bottom: var(--space-5); }
.jy-hero__title {
  font-family: var(--font-display); font-weight: 500; color: var(--ink-900);
  font-size: clamp(2rem, 4.6vw, 3.8rem); line-height: 1.12; letter-spacing: .04em;
}
.jy-hero__sub {
  margin-top: var(--space-5); font-family: var(--font-sans); font-weight: 500;
  font-size: clamp(.7rem,1.1vw,.82rem); letter-spacing: .24em; text-transform: uppercase; color: var(--ink-700);
}
.jy-slabel__text { white-space: nowrap; }
.jy-hero__cta { margin-top: var(--space-8); }
.jy-scroll-cue {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 4;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: .22em; text-transform: uppercase; color: #fff;
  text-shadow: 0 1px 10px rgba(0,0,0,.4);
}
.jy-scroll-cue__line { width: 1px; height: 34px; background: linear-gradient(180deg,#fff,transparent); animation: jy-cue 2.4s var(--ease-inout) infinite; }
@keyframes jy-cue { 0%,100%{ transform: scaleY(.5); transform-origin: top; opacity:.4 } 50%{ transform: scaleY(1); opacity:1 } }

/* ====================  HERO — 日瑩 logo-mask brand banner  ==================== */
.jy-mhero {
  position: relative; background: var(--warm-white);
  min-height: 100svh; display: flex; align-items: center;
  padding: clamp(80px, 9vh, 104px) var(--gutter) clamp(4rem, 8vw, 7rem);
}
.jy-mhero__grid {
  width: 100%; max-width: var(--container-wide); margin-inline: auto;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: clamp(1.5rem, 4vw, 4.5rem);
}

/* left — title block */
.jy-mhero__left { max-width: 460px; justify-self: start; }
.jy-mhero__eye {
  font-family: var(--font-sans); font-weight: 600; margin: 0;
  font-size: clamp(.74rem, .95vw, .86rem); letter-spacing: .12em; color: var(--orange-600);
}
.jy-mhero__title {
  font-family: var(--font-display); font-weight: 500; color: var(--ink-900);
  font-size: clamp(2.1rem, 3.6vw, 3.5rem); line-height: 1.22; letter-spacing: .05em;
  margin: clamp(1rem, 2vw, 1.6rem) 0 0;
}
.jy-mhero__rule { display: block; width: 46px; height: 2px; background: var(--orange-500); margin: clamp(1.1rem, 2.3vw, 1.7rem) 0 0; }
.jy-mhero__sub {
  font-family: var(--font-sans); color: var(--ink-500); letter-spacing: .04em;
  font-size: clamp(.92rem, 1.1vw, 1.02rem); line-height: 1.6; margin: clamp(.95rem, 2vw, 1.35rem) 0 0;
}

/* center — mask + controls + cta */
.jy-mhero__center { display: flex; flex-direction: column; align-items: center; transform: translateY(clamp(48px, 9vh, 100px)); }
.jy-mhero__mask {
  position: relative; height: clamp(380px, 64vh, 660px); aspect-ratio: 568 / 908;
  background: var(--warm-2);
  -webkit-mask: url(../assets/logo-mask.png) center / contain no-repeat;
          mask: url(../assets/logo-mask.png) center / contain no-repeat;
}
.jy-mhero__frame { position: absolute; inset: 0; opacity: 0; transition: opacity 1200ms var(--ease-inout); }
.jy-mhero__frame.is-on { opacity: 1; }
.jy-mhero__frame image-slot { font-family: var(--font-sans); }

.jy-mhero__controls { display: flex; align-items: center; gap: clamp(16px, 2vw, 26px); margin-top: clamp(1.4rem, 3vw, 2.2rem); }
.jy-mhero__arrow {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 34px; padding: 0; border: 0; background: none; cursor: pointer;
  color: var(--ink-500); transition: color var(--dur-base) var(--ease-out);
}
.jy-mhero__arrow:hover { color: var(--orange-600); }
.jy-mhero__dots { display: flex; align-items: center; gap: 11px; }
.jy-mhero__dot {
  width: 9px; height: 9px; padding: 0; border-radius: 50%;
  border: 1px solid var(--ink-300); background: transparent; cursor: pointer;
  transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.jy-mhero__dot:hover { border-color: var(--orange-400); }
.jy-mhero__dot.is-on { background: var(--orange-500); border-color: var(--orange-500); }
.jy-mhero__cta { margin-top: clamp(1.6rem, 3.5vw, 2.6rem); }

/* right — vertical tagline */
.jy-mhero__right { justify-self: end; margin-right: clamp(8px, 5vw, 90px); display: flex; flex-direction: column; align-items: center; gap: 18px; min-width: 0; }
.jy-mhero__vtext {
  writing-mode: vertical-rl; text-orientation: upright; margin: 0;
  font-family: var(--font-display); font-weight: 500; color: var(--ink-800);
  font-size: clamp(1rem, 1.4vw, 1.32rem); letter-spacing: .2em; line-height: 2.2;
  white-space: nowrap;
}
.jy-mhero__vline { width: 1px; height: clamp(58px, 11vh, 116px); background: linear-gradient(180deg, var(--ink-300), transparent); }
.jy-mhero__vdot { width: 6px; height: 6px; border-radius: 50%; background: var(--orange-500); }

@media (max-width: 980px) {
  .jy-mhero { min-height: 0; }
  .jy-mhero__grid { grid-template-columns: 1fr; gap: clamp(1.5rem, 5vw, 2.5rem); justify-items: center; }
  .jy-mhero__left { max-width: none; justify-self: center; text-align: center; display: flex; flex-direction: column; align-items: center; }
  .jy-mhero__rule { margin-inline: auto; }
  .jy-mhero__mask { height: clamp(340px, 56vh, 540px); }
  .jy-mhero__center { transform: none; }
  .jy-mhero__right { display: none; }
}

/* ====================  SECTION SCAFFOLD  ==================== */
.jy-sec { padding-block: var(--section-y); }
.jy-sec--tight { padding-block: clamp(3rem,6vw,5rem); }
.jy-sec--sunken { background: var(--warm-2); }
.jy-sec--ink { background: var(--ink-900); color: #fff; }
.jy-head { display: flex; flex-direction: column; gap: var(--space-4); max-width: var(--measure); }
.jy-head--center { margin-inline: auto; text-align: center; align-items: center; }
.jy-head__t { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.9rem,3.6vw,3rem); line-height: 1.18; letter-spacing: .01em; }
.jy-head__s { font: var(--type-lead); color: var(--text-secondary); }
.jy-eyebrow-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); flex-wrap: wrap; }

/* ====================  BRAND INTRO (split)  ==================== */
.jy-intro { display: grid; grid-template-columns: 1fr 1.02fr; gap: clamp(2.5rem,7vw,7rem); align-items: center; }
.jy-intro__txt { max-width: 520px; }
.jy-intro__zh { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.1rem,4vw,3.4rem); line-height: 1.32; letter-spacing: .04em; color: var(--ink-900); margin-top: var(--space-5); }
.jy-intro__body { font: var(--type-lead); color: var(--text-secondary); margin-top: var(--space-6); }
.jy-intro__meta { display: flex; gap: var(--space-9); margin-top: var(--space-8); }
.jy-intro__meta b { display: block; font-family: var(--font-display); font-weight: 300; font-size: var(--text-2xl); color: var(--orange-700); letter-spacing: .02em; }
.jy-intro__meta span { font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: var(--tracking-cjk); color: var(--text-muted); white-space: nowrap; }
.jy-intro__media { position: relative; }
.jy-intro__media .jy-ph { box-shadow: var(--shadow-lg); }
.jy-intro__tag { position: absolute; bottom: -18px; left: -18px; }

/* —— Brand banner (full-bleed photo, edges dissolve into the page) —— */
.jy-banner {
  position: relative; width: 100%;
  min-height: clamp(540px, 78vh, 880px);
  background-color: var(--warm-white);
  display: flex; align-items: center; isolation: isolate;
}
.jy-banner::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: url(../assets/banner-gift.png);
  background-size: cover; background-position: center bottom; background-repeat: no-repeat;
  -webkit-mask-image:
    linear-gradient(180deg, transparent 0%, #000 12%, #000 90%, transparent 100%),
    linear-gradient(90deg, transparent 0%, #000 6%, #000 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(180deg, transparent 0%, #000 12%, #000 90%, transparent 100%),
    linear-gradient(90deg, transparent 0%, #000 6%, #000 100%);
  mask-composite: intersect;
}
.jy-banner__scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(90deg, rgba(252,251,249,0) 34%, rgba(252,251,249,.62) 56%, rgba(252,251,249,.94) 78%);
}
.jy-banner__wrap { position: relative; z-index: 2; width: 100%; }
.jy-banner__panel { margin-left: auto; width: min(50%, 560px); }
.jy-banner__panel .jy-intro__zh { margin-top: var(--space-5); }
.jy-banner__panel .jy-intro__body { margin-top: var(--space-5); }
.jy-banner__panel .jy-intro__meta { margin-top: var(--space-7); }

/* —— About banner (full-bleed photo, text on the left) —— */
.jy-aboutbanner {
  position: relative; width: 100%;
  background-color: var(--warm-white);
  isolation: isolate; overflow: hidden;
  padding-bottom: clamp(40px, 5vw, 72px);
  margin-block: clamp(2rem, 5vw, 4rem);
}
.jy-aboutbanner__photo {
  position: relative; z-index: 0; display: block;
  margin: -36px 0 0 auto;
  width: 96%; max-width: 1500px; height: auto; pointer-events: none;
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0%, #000 14%),
    linear-gradient(180deg, transparent 0%, rgba(0,0,0,.4) 14%, #000 34%, #000 88%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
  mask-image:
    linear-gradient(90deg, transparent 0%, #000 14%),
    linear-gradient(180deg, transparent 0%, rgba(0,0,0,.4) 14%, #000 34%, #000 88%, transparent 100%);
}
.jy-aboutbanner__rule { display: block; width: 64px; height: 2px; background: var(--orange-500); margin-top: 28px; }
.jy-aboutbanner__scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(90deg, rgba(252,251,249,.92) 0%, rgba(252,251,249,.6) 24%, rgba(252,251,249,0) 46%);
}
.jy-aboutbanner__wrap { position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; }
.jy-aboutbanner__panel { max-width: 500px; }

/* —— About banner: background removed (photo + scrim hidden, text flows on plain bg) —— */
.jy-aboutbanner { background-color: transparent; padding-bottom: 0; overflow: visible; }
.jy-aboutbanner__photo, .jy-aboutbanner__scrim { display: none; }
.jy-aboutbanner__wrap { position: relative; inset: auto; display: block; }
/* right-aligned variant: push the orange rule to the right edge too */
.jy-aboutbanner__panel .jy-aboutbanner__rule { margin-left: auto; margin-right: 0; }
@media (max-width: 860px) {
  .jy-aboutbanner { padding: 0 0 var(--space-7); margin-block: clamp(1.5rem, 4vw, 2.5rem); }
  .jy-aboutbanner__photo {
    position: relative; width: 100%; max-width: none; margin: 0 0 var(--space-6);
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 70%, transparent 100%);
    mask-image: linear-gradient(180deg, #000 0%, #000 70%, transparent 100%);
  }
  .jy-aboutbanner__wrap { position: relative; inset: auto; display: block; }
  .jy-aboutbanner__scrim { display: none; }
  .jy-aboutbanner__panel { max-width: none; }
}

@media (max-width: 860px) {
  .jy-banner {
    min-height: 0; display: block;
    padding: 72vw var(--gutter) var(--space-9);
  }
  .jy-banner::before {
    inset: 0 0 auto 0; height: 80vw;
    background-position: center 30%;
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 58%, transparent 100%);
    mask-image: linear-gradient(180deg, #000 0%, #000 58%, transparent 100%);
    -webkit-mask-composite: source-over; mask-composite: add;
  }
  .jy-banner__scrim { display: none; }
  .jy-banner__wrap { padding-inline: 0; }
  .jy-banner__panel { width: 100%; margin-left: 0; }
}

/* ====================  PROJECTS — shared bits  ==================== */
.jy-proj-foot { display: flex; justify-content: center; margin-top: var(--space-9); }

/* drag-and-drop work photo slots */
.jy-workimg { display: block; overflow: hidden; background: var(--warm-2); }
.jy-proj-ed__media .jy-workimg { border-radius: var(--radius-lg); }
.jy-proj-grid__c .jy-workimg { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.jy-brandimg { display: block; overflow: hidden; background: var(--warm-2); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

/* layout A — editorial (asymmetric magazine) */
.jy-proj-ed { display: flex; flex-direction: column; gap: clamp(3rem,6vw,5.5rem); margin-top: var(--space-9); }
.jy-proj-ed__row { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(2rem,5vw,4.5rem); align-items: center; }
.jy-proj-ed__row:nth-child(even) { grid-template-columns: 1fr 1.15fr; }
.jy-proj-ed__row:nth-child(even) .jy-proj-ed__media { order: -1; }
.jy-proj-ed__num { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--orange-600); letter-spacing: .14em; }
.jy-proj-ed__cat { font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--text-muted); margin-top: var(--space-4); }
.jy-proj-ed__t { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.5rem,2.8vw,2.3rem); line-height: 1.22; color: var(--ink-900); margin-top: var(--space-2); }
.jy-proj-ed__desc { font: var(--type-body); color: var(--text-secondary); margin-top: var(--space-4); max-width: 460px; }
.jy-case { display: grid; grid-template-columns: repeat(3,auto); gap: var(--space-5) var(--space-6); margin-top: var(--space-6); }
.jy-case > div { display: flex; flex-direction: column; gap: 5px; }
.jy-case__k { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--orange-600); }
.jy-case__v { font-family: var(--font-sans); font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.5; }

/* layout B — carousel (large slides) */
.jy-proj-car { margin-top: var(--space-9); position: relative; }
.jy-proj-car__track { display: flex; gap: var(--space-6); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: var(--space-4); scrollbar-width: none; }
.jy-proj-car__track::-webkit-scrollbar { display: none; }
.jy-proj-car__slide { flex: 0 0 min(82%, 880px); scroll-snap-align: center; display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(1.5rem,3vw,2.5rem); align-items: center; background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-xl); overflow: hidden; }
.jy-proj-car__body { padding: clamp(1.75rem,3vw,2.75rem) clamp(1.5rem,3vw,2.5rem) clamp(1.75rem,3vw,2.75rem) 0; }
.jy-proj-car__ctrl { display: flex; gap: var(--space-3); justify-content: center; margin-top: var(--space-7); }
.jy-cbtn { width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--border-strong); background: var(--white); color: var(--ink-700); cursor: pointer; font-size: 17px; display: inline-flex; align-items: center; justify-content: center; transition: var(--transition-base); }
.jy-cbtn:hover { border-color: var(--orange-400); color: var(--orange-700); box-shadow: var(--shadow-sm); }

/* layout C — regular grid */
.jy-proj-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: clamp(1.5rem,3vw,2.5rem); margin-top: var(--space-9); }
.jy-proj-grid__c { display: flex; flex-direction: column; }
.jy-proj-grid__c .jy-ph { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.jy-proj-grid__b { border: 1px solid var(--hairline); border-top: 0; border-radius: 0 0 var(--radius-lg) var(--radius-lg); padding: var(--space-6); background: var(--surface-card); flex: 1; }

/* layout D — featured work (split case carousel · ref 範例.png) */
.jy-feat {
  position: relative;
  max-width: var(--container-wide);
  margin: var(--space-7) auto 0;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: minmax(330px, 0.8fr) 1.2fr;
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: stretch;
}
.jy-feat__text { display: flex; flex-direction: column; }
.jy-feat__title {
  font-family: var(--font-display); font-weight: 500; color: var(--ink-900);
  font-size: clamp(2rem, 3.4vw, 3.1rem); line-height: 1.3; letter-spacing: .06em;
  margin-top: clamp(1.2rem, 2.2vw, 1.8rem);
}
.jy-feat__rule { display: block; width: 48px; height: 2px; background: var(--orange-500); margin-top: clamp(1.2rem, 2.4vw, 1.8rem); }
.jy-feat__intro {
  font-family: var(--font-sans); font-size: clamp(.95rem, 1.05vw, 1.02rem);
  line-height: 1.9; letter-spacing: .02em; color: var(--text-secondary);
  margin-top: clamp(1.1rem, 2.2vw, 1.6rem);
}
.jy-feat__case { margin-top: clamp(2.4rem, 5vw, 3.8rem); }
.jy-feat__caseey { display: flex; align-items: center; gap: 16px; }
.jy-feat__casenum { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .18em; color: var(--orange-600); white-space: nowrap; }
.jy-feat__casedash { width: 26px; height: 1px; background: var(--orange-400); flex: none; }
.jy-feat__casecat { font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-semibold); letter-spacing: .18em; color: var(--orange-600); white-space: nowrap; }
.jy-feat__casetitle {
  font-family: var(--font-display); font-weight: 500; font-size: clamp(1.4rem, 2vw, 1.9rem);
  line-height: 1.4; letter-spacing: .04em; color: var(--ink-900); margin-top: clamp(1rem, 2vw, 1.5rem);
}
.jy-feat__casedesc {
  font-family: var(--font-sans); font-size: clamp(.92rem, 1vw, 1rem); line-height: 1.85;
  letter-spacing: .02em; color: var(--text-secondary); margin-top: clamp(.9rem, 1.6vw, 1.2rem); max-width: 32ch;
}
.jy-feat__link {
  display: inline-flex; align-items: center; gap: 2.4em; margin-top: clamp(1.6rem, 3vw, 2.4rem);
  padding-bottom: 13px; border-bottom: 1px solid var(--ink-900); width: fit-content;
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: var(--fw-medium);
  letter-spacing: .12em; color: var(--ink-900); text-decoration: none; white-space: nowrap;
  transition: gap var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.jy-feat__link:hover { gap: 2.9em; color: var(--orange-700); border-color: var(--orange-500); }
.jy-feat__linkarrow { transition: transform var(--dur-base) var(--ease-out); }
.jy-feat__link:hover .jy-feat__linkarrow { transform: translateX(4px); }
.jy-feat__prog {
  display: flex; align-items: center; gap: 18px; margin-top: auto; padding-top: clamp(2.4rem, 5vw, 4rem);
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .14em;
}
.jy-feat__prognow { color: var(--orange-600); }
.jy-feat__progall { color: var(--ink-400); }
.jy-feat__progtrack { position: relative; flex: 1; height: 2px; background: var(--hairline); overflow: hidden; }
.jy-feat__progfill { position: absolute; left: 0; top: 0; height: 100%; background: var(--orange-500); transition: width 600ms var(--ease-inout); }

.jy-feat__media { position: relative; align-self: stretch; min-height: clamp(360px, 46vw, 620px); background: transparent; }
.jy-feat__pane { position: absolute; inset: 0; opacity: 0; transition: opacity 800ms var(--ease-inout);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.4) 6%, #000 18%, #000 82%, rgba(0,0,0,0.4) 94%, transparent 100%), linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.4) 5%, #000 14%, #000 86%, rgba(0,0,0,0.4) 95%, transparent 100%);
  -webkit-mask-composite: source-in; mask-composite: intersect; -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.4) 6%, #000 18%, #000 82%, rgba(0,0,0,0.4) 94%, transparent 100%), linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.4) 5%, #000 14%, #000 86%, rgba(0,0,0,0.4) 95%, transparent 100%); }
.jy-feat__pane.is-on { opacity: 1; }
.jy-feat__media .jy-workimg { width: 100%; height: 100%; border-radius: 0; margin: 0 !important; }
.jy-feat__arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 6;
  width: 48px; height: 66px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 0; padding: 0; cursor: pointer;
  color: var(--ink-500); transition: color var(--dur-base) var(--ease-out);
}
.jy-feat__arrow:hover { color: var(--ink-900); }
.jy-feat__arrow--prev { left: clamp(-2.4rem, -2vw, -1rem); }
.jy-feat__arrow--next { right: clamp(-2.4rem, -2vw, -1rem); }
@media (max-width: 900px) {
  .jy-feat { grid-template-columns: 1fr; gap: clamp(1.6rem, 4vw, 2.4rem); }
  .jy-feat__media { order: 2; min-height: clamp(300px, 70vw, 460px); }
  .jy-feat__pane { -webkit-mask-image: none; mask-image: none; }
  .jy-feat__prog { padding-top: clamp(1.6rem, 4vw, 2.4rem); }
}

/* ====================  SUSTAINABLE COLLECTION  ==================== */
.jy-esg-lead { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4rem); align-items: end; }
.jy-esg-badge { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-medium); letter-spacing: var(--tracking-cjk); color: var(--orange-700); }
.jy-esg-badge::before { content:""; width: 7px; height: 7px; background: var(--orange-500); transform: rotate(45deg); }

/* presentation: feature (one big + list) */
.jy-esg-feat { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(2rem,5vw,4rem); margin-top: var(--space-9); align-items: stretch; }
.jy-esg-feat__list { display: flex; flex-direction: column; }
.jy-esg-item { display: grid; grid-template-columns: auto 1fr; gap: var(--space-5); padding: var(--space-6) 0; border-top: 1px solid var(--hairline); }
.jy-esg-item:last-child { border-bottom: 1px solid var(--hairline); }
.jy-esg-item__n { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--orange-600); letter-spacing: .12em; padding-top: 5px; }
.jy-esg-item__t { font-family: var(--font-display); font-weight: 500; font-size: var(--text-xl); color: var(--ink-900); }
.jy-esg-item__d { font: var(--type-body-sm); color: var(--text-secondary); margin-top: var(--space-2); }

/* presentation: quad grid */
.jy-esg-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: clamp(1.25rem,2.5vw,2rem); margin-top: var(--space-9); }
.jy-esg-card { display: flex; flex-direction: column; }
.jy-esg-card .jy-ph { border-radius: var(--radius-lg); }
.jy-esg-card__t { font-family: var(--font-display); font-weight: 500; font-size: var(--text-lg); color: var(--ink-900); margin-top: var(--space-5); }
.jy-esg-card__d { font: var(--type-body-sm); color: var(--text-secondary); margin-top: var(--space-2); }

/* presentation: editorial stack */
.jy-esg-stack { margin-top: var(--space-9); display: flex; flex-direction: column; gap: clamp(2.5rem,5vw,4.5rem); }
.jy-esg-stack__row { display: grid; grid-template-columns: 88px 1fr 1.1fr; gap: clamp(1.5rem,4vw,3.5rem); align-items: center; }
.jy-esg-stack__row:nth-child(even) { grid-template-columns: 88px 1.1fr 1fr; }
.jy-esg-stack__row:nth-child(even) .jy-esg-stack__media { order: 2; }
.jy-esg-stack__n { font-family: var(--font-display); font-weight: 300; font-size: var(--text-3xl); color: var(--orange-300); line-height: 1; }

/* ====================  PROCESS (Apple-style horizontal)  ==================== */
.jy-proc { margin-top: var(--space-9); }
.jy-proc__track { display: grid; grid-template-columns: repeat(5,1fr); gap: 0; }
.jy-proc__step { position: relative; padding: var(--space-7) var(--space-5) 0 0; }
.jy-proc__step::before { content:""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--hairline); }
.jy-proc__step::after { content:""; position: absolute; top: -3px; left: 0; width: 7px; height: 7px; background: var(--orange-500); transform: rotate(45deg); }
.jy-proc__n { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--orange-600); letter-spacing: .14em; }
.jy-proc__zh { font-family: var(--font-display); font-weight: 500; font-size: var(--text-2xl); color: var(--ink-900); margin-top: var(--space-4); letter-spacing: .04em; }
.jy-proc__en { font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--orange-700); margin-top: var(--space-2); }
.jy-proc__d  { font: var(--type-body-sm); color: var(--text-secondary); margin-top: var(--space-4); padding-right: var(--space-4); }

/* ====================  TRUSTED BY  ==================== */
.jy-trust__row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); margin-top: var(--space-8); }
.jy-trust__cell { background: var(--warm-white); display: flex; align-items: center; justify-content: center; padding: var(--space-8) var(--space-5); min-height: 132px; }
.jy-trust__name { font-family: var(--font-display); font-weight: 500; font-size: var(--text-lg); color: var(--ink-400); letter-spacing: .04em; transition: color var(--dur-base) var(--ease-out); text-align: center; }
.jy-trust__cell:hover .jy-trust__name { color: var(--ink-800); }

/* —— Sustainability: full-bleed banner + feature strip (home) —— */
.jy-esg2 { position: relative; }
.jy-esg2__banner {
  position: relative; width: 100%;
  min-height: clamp(540px, 60vh, 720px);
  overflow: hidden; isolation: isolate;
  display: flex; align-items: center;
  background: #efe9e1;
  border-top: 1px solid var(--hairline);
}
.jy-esg2__photo {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%; object-fit: cover; object-position: 45% center;
  pointer-events: none;
}
.jy-esg2__scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(250,248,244,.92) 0%, rgba(250,248,244,.72) 24%, rgba(250,248,244,.28) 44%, rgba(250,248,244,0) 60%);
}
.jy-esg2__overlay { position: relative; z-index: 2; width: 100%; }
.jy-esg2__panel { max-width: 500px; }
.jy-esg2__title {
  font-family: var(--font-display); font-weight: 500; color: var(--ink-900);
  font-size: clamp(2rem, 3.4vw, 3.05rem); line-height: 1.26; letter-spacing: .04em;
  margin: clamp(1.1rem, 2vw, 1.7rem) 0 0;
}
.jy-esg2__lead {
  margin: clamp(1.3rem, 2.4vw, 1.9rem) 0 0;
  font-family: var(--font-sans); color: var(--ink-600);
  font-size: clamp(1rem, 1.15vw, 1.075rem); line-height: 1.95; letter-spacing: .04em;
}
.jy-esg2__cta { margin-top: clamp(1.7rem, 3vw, 2.5rem); }

.jy-esg2__features { background: var(--warm-2); border-top: 1px solid var(--hairline); }
.jy-esg2__frow {
  display: grid; grid-template-columns: repeat(5, 1fr);
  padding-block: clamp(2.6rem, 4.5vw, 4rem);
}
.jy-esg2__feat {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: clamp(18px, 1.8vw, 26px);
  padding: 8px clamp(.8rem, 1.8vw, 2rem);
  position: relative;
}
.jy-esg2__feat + .jy-esg2__feat::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  height: 72%; border-left: 1px dashed var(--ink-300, #cfcbc4);
}
.jy-esg2__ic { flex: none; width: clamp(43px, 4vw, 51px); height: clamp(43px, 4vw, 51px); display: flex; align-items: center; justify-content: center; }
.jy-esg2__ic img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; }
.jy-esg2__ftxt { min-width: 0; }
.jy-esg2__fzh {
  font-family: var(--font-display); font-weight: 600; color: var(--ink-900);
  font-size: clamp(.85rem, 1vw, .94rem); letter-spacing: .06em; line-height: 1.3;
}
.jy-esg2__fdesc {
  margin-top: clamp(12px, 1.4vw, 18px); font-family: var(--font-sans); color: var(--text-secondary);
  font-size: clamp(.66rem, .76vw, .72rem); line-height: 1.95; letter-spacing: .03em; white-space: nowrap;
}
@media (max-width: 1080px) {
  .jy-esg2__frow { grid-template-columns: repeat(3, 1fr); gap: clamp(2rem, 4vw, 3rem) 0; }
  .jy-esg2__feat:nth-child(3n+1)::before { display: none; }
  .jy-esg2__feat + .jy-esg2__feat::before { height: 64%; }
}
@media (max-width: 680px) {
  .jy-esg2__frow { grid-template-columns: repeat(2, 1fr); }
  .jy-esg2__feat::before { display: none !important; }
  .jy-esg2__feat:nth-child(odd)::before { display: none; }
  .jy-esg2__feat + .jy-esg2__feat::before { display: none; }
}
@media (max-width: 860px) {
  .jy-esg2__banner { min-height: 0; padding-block: clamp(3.2rem, 11vw, 5rem); }
  .jy-esg2__photo { object-position: 70% center; }
  .jy-esg2__scrim {
    background: linear-gradient(180deg, rgba(250,248,244,.9) 0%, rgba(250,248,244,.62) 40%, rgba(250,248,244,.2) 72%, rgba(250,248,244,0) 100%);
  }
}
@media (max-width: 560px) {
  .jy-esg2__frow { grid-template-columns: 1fr; }
  .jy-esg2__feat + .jy-esg2__feat::before { display: none; }
  .jy-esg2__feat { padding-block: 14px; border-top: 1px dashed var(--ink-300, #cfcbc4); }
  .jy-esg2__feat:first-child { border-top: 0; }
}

/* —— Client logo wall (grouped, drop-in slots) —— */
.jy-logowall { margin-top: var(--space-9); display: flex; flex-direction: column; gap: clamp(2.5rem,5vw,4rem); }
.jy-logoband { display: grid; grid-template-columns: 200px 1fr; gap: clamp(1.5rem,4vw,3.25rem); align-items: start; }
.jy-logoband__lab { display: flex; flex-direction: column; gap: var(--space-2); padding-top: 6px; }
.jy-logoband__lab::before { content: ""; width: 7px; height: 7px; background: var(--orange-500); transform: rotate(45deg); margin-bottom: var(--space-2); }
.jy-logoband__zh { font-family: var(--font-display); font-weight: 500; font-size: var(--text-base); color: var(--ink-900); letter-spacing: var(--tracking-cjk); line-height: 1.5; }
.jy-logoband__en { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--text-muted); line-height: 1.5; }
.jy-logos { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: clamp(1.5rem,2.5vw,2.25rem) var(--space-6); }
.jy-logo { display: flex; flex-direction: column; align-items: center; gap: var(--space-4); }
.jy-logo__slot { display: block; width: 100%; height: 54px; --slot-frame-bg: transparent; --slot-ring: transparent; }
.jy-logo__name { font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: var(--tracking-cjk); color: var(--text-muted); text-align: center; line-height: 1.45; transition: color var(--dur-base) var(--ease-out); }
.jy-logo:hover .jy-logo__name { color: var(--ink-800); }
@media (max-width: 860px) {
  .jy-logoband { grid-template-columns: 1fr; gap: var(--space-5); }
  .jy-logoband__lab { flex-direction: row; align-items: baseline; gap: var(--space-3); padding-top: 0; }
  .jy-logoband__lab::before { display: none; }
}

/* —— Client roster (grouped) —— */
.jy-clients { margin-top: var(--space-9); display: flex; flex-direction: column; gap: clamp(2rem,4vw,3.25rem); }
.jy-clients__band { display: grid; grid-template-columns: 200px 1fr; gap: clamp(1.5rem,4vw,3.25rem); align-items: start; }
.jy-clients__lab { display: flex; flex-direction: column; gap: var(--space-2); padding-top: 6px; }
.jy-clients__lab::before { content: ""; width: 7px; height: 7px; background: var(--orange-500); transform: rotate(45deg); margin-bottom: var(--space-2); }
.jy-clients__zh { font-family: var(--font-display); font-weight: 500; font-size: var(--text-base); color: var(--ink-900); letter-spacing: var(--tracking-cjk); line-height: 1.5; }
.jy-clients__en { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--text-muted); line-height: 1.5; }
.jy-clients__grid { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--warm-white); border-top: 1px solid var(--hairline); border-left: 1px solid var(--hairline); }
.jy-clients__cell { display: flex; align-items: center; justify-content: center; padding: var(--space-6) var(--space-4); min-height: 92px; text-align: center; border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.jy-clients__name { font-family: var(--font-display); font-weight: 500; font-size: var(--text-base); color: var(--ink-400); letter-spacing: .02em; line-height: 1.4; transition: color var(--dur-base) var(--ease-out); }
.jy-clients__cell:hover .jy-clients__name { color: var(--ink-800); }
@media (max-width: 860px) {
  .jy-clients__band { grid-template-columns: 1fr; gap: var(--space-5); }
  .jy-clients__lab { flex-direction: row; align-items: baseline; gap: var(--space-3); padding-top: 0; }
  .jy-clients__lab::before { display: none; }
  .jy-clients__grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .jy-clients__grid { grid-template-columns: repeat(2, 1fr); }
  .jy-clients__cell { min-height: 78px; padding: var(--space-5) var(--space-3); }
}

/* ====================  STATEMENT / FOOTER CTA  ==================== */
.jy-statement { text-align: center; }
.jy-statement__q { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.8rem,4.5vw,3.4rem); line-height: 1.34; letter-spacing: .02em; max-width: 16ch; margin-inline: auto; }
.jy-statement--ink .jy-statement__q { color: #fff; }
.jy-statement--cta { padding-block: clamp(2.75rem,5vw,4rem); }
.jy-statement--cta .jy-statement__q { font-weight: 600; font-size: clamp(1.4rem,2.6vw,2rem); line-height: 1.5; color: var(--ink-900); max-width: 22ch; }

/* ====================  FOOTER (light)  ==================== */
.jy-foot { background: var(--warm-2); color: var(--ink-700); }
.jy-foot__big { padding-block: clamp(2rem,4vw,3.25rem); text-align: center; }
.jy-foot__decl { font-family: var(--font-sans); font-weight: 600; font-size: clamp(1.4rem,3.6vw,2.6rem); line-height: 1.2; letter-spacing: .34em; text-transform: uppercase; color: var(--orange-500); padding-left: .34em; }
.jy-foot__decl em { font-style: normal; color: var(--orange-500); }
.jy-foot__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); padding-block: var(--space-8) var(--space-7); }
.jy-foot__brand .jy-brand__zh { color: var(--ink-900); }
.jy-foot__tag { font: var(--type-body-sm); color: var(--text-muted); margin-top: var(--space-4); max-width: 280px; }
.jy-foot__h { font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-medium); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--orange-600); margin-bottom: var(--space-4); }
.jy-foot__col a { display: block; font: var(--type-body-sm); color: var(--text-secondary); margin-bottom: var(--space-2); }-bottom: var(--space-5); }
.jy-foot__col a { display: block; font: var(--type-body-sm); color: var(--text-secondary); margin-bottom: var(--space-3); }
.jy-foot__col a:hover { color: var(--orange-700); }
.jy-foot__contact .jy-foot__cf { display: flex; flex-direction: column; gap: 3px; margin-bottom: var(--space-3); }
.jy-foot__ck { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); }
.jy-foot__cv { font: var(--type-body-sm); color: var(--text-primary); }
.jy-foot__contact .jy-foot__cf--addr .jy-foot__cv { white-space: normal; }
.jy-foot__bottom { display: flex; justify-content: space-between; align-items: center; gap: var(--space-5); padding-block: var(--space-5); border-top: 1px solid var(--hairline); font-family: var(--font-sans); font-size: var(--text-xs); color: var(--text-muted); flex-wrap: wrap; }

/* ====================  LOADER  ==================== */
.jy-loader {
  position: fixed; inset: 0; z-index: 300; background: var(--warm-white);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-5);
  transition: opacity 700ms var(--ease-out), visibility 700ms var(--ease-out);
}
.jy-loader.is-done { opacity: 0; visibility: hidden; }
.jy-loader__sym { width: 56px; height: auto; opacity: 0; transform: translateY(8px) scale(.96); animation: jy-load-sym 1100ms var(--ease-out) forwards; }
.jy-loader__zh { font-family: var(--font-display); font-weight: 500; font-size: 30px; letter-spacing: .42em; padding-left: .42em; color: var(--ink-900); opacity: 0; animation: jy-load-zh 900ms var(--ease-out) 480ms forwards; }
.jy-loader__bar { width: 120px; height: 1px; background: var(--hairline); overflow: hidden; opacity: 0; animation: jy-load-zh 600ms var(--ease-out) 700ms forwards; }
.jy-loader__bar i { display: block; height: 100%; width: 40%; background: var(--orange-500); animation: jy-load-bar 1500ms var(--ease-inout) 760ms forwards; }
@keyframes jy-load-sym { to { opacity: 1; transform: none; } }
@keyframes jy-load-zh  { to { opacity: 1; } }
@keyframes jy-load-bar { from { transform: translateX(-110%); } to { transform: translateX(310%); } }
@media (prefers-reduced-motion: reduce) {
  .jy-loader__sym, .jy-loader__zh, .jy-loader__bar { animation-duration: 1ms; }
}

/* ====================  CONTACT  ==================== */
.jy-contact { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(2.5rem,6vw,6rem); align-items: start; }
.jy-info { display: flex; flex-direction: column; }
.jy-info__row { display: grid; grid-template-columns: 96px 1fr; gap: var(--space-5); padding: var(--space-5) 0; border-top: 1px solid var(--hairline); align-items: baseline; }
.jy-info__row:last-child { border-bottom: 1px solid var(--hairline); }
.jy-info__k { font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--text-muted); }
.jy-info__v { font-family: var(--font-sans); font-size: var(--text-base); color: var(--text-primary); line-height: 1.6; }
.jy-info__v a:hover { color: var(--orange-700); }
.jy-form { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-xl); padding: clamp(1.75rem,3vw,2.75rem); display: flex; flex-direction: column; gap: var(--space-5); box-shadow: var(--shadow-md); }
.jy-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.jy-form__ok { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-4); padding: var(--space-8) var(--space-4); }
.jy-form__ok-disc { width: 64px; height: 64px; border-radius: 50%; background: var(--orange-50); display: flex; align-items: center; justify-content: center; }
.jy-form__ok-disc img { width: 34px; }

/* page hero (interior pages) */
.jy-phero { padding: clamp(8rem,16vh,11rem) 0 clamp(2.5rem,5vw,4rem); }
.jy-phero__t { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.4rem,5.5vw,4.4rem); line-height: 1.1; letter-spacing: .03em; color: var(--ink-900); margin-top: var(--space-5); }
.jy-phero__s { font: var(--type-lead); color: var(--text-secondary); max-width: var(--measure); margin-top: var(--space-5); }

/* about timeline — full-width editorial row (年代 | 標題 | 說明) */
.jy-time { margin-top: var(--space-9); display: flex; flex-direction: column; }
.jy-time__row { display: grid; grid-template-columns: 130px minmax(150px, 0.9fr) 1.7fr; gap: var(--space-7); align-items: baseline; padding: var(--space-6) 0; border-top: 1px solid var(--hairline); }
.jy-time__yr { font-family: var(--font-display); font-weight: 300; font-size: var(--text-2xl); color: var(--orange-700); letter-spacing: .02em; }
.jy-time__t { font-family: var(--font-display); font-weight: 500; font-size: var(--text-xl); color: var(--ink-900); }
.jy-time__d { font: var(--type-body); color: var(--text-secondary); }
@media (max-width: 760px) {
  .jy-time__row { grid-template-columns: 92px 1fr; gap: var(--space-3) var(--space-5); }
  .jy-time__d { grid-column: 2; }
}
.jy-values { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--space-6); margin-top: var(--space-9); }
.jy-value__k { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--orange-600); letter-spacing: .12em; }
.jy-value__t { font-family: var(--font-display); font-weight: 500; font-size: var(--text-lg); color: var(--ink-900); margin: var(--space-3) 0 var(--space-2); }
.jy-value__d { font: var(--type-body-sm); color: var(--text-secondary); }

/* —— Services list (服務 page) —— */
.jy-shero__in { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem,6vw,5rem); align-items: center; }
.jy-shero__mark { display: flex; justify-content: center; }
.jy-shero__mark img { width: min(380px, 90%); height: auto; }
@media (max-width: 760px) {
  .jy-shero__in { grid-template-columns: 1fr; gap: var(--space-7); }
  .jy-shero__mark { justify-content: flex-start; }
  .jy-shero__mark img { width: 220px; }
}
.jy-svc { margin-top: var(--space-8); border-top: 1px solid var(--hairline); }
.jy-svc__row { display: grid; grid-template-columns: 64px 1.05fr 1.5fr; gap: var(--space-6); align-items: baseline; padding: var(--space-7) 0; border-bottom: 1px solid var(--hairline); }
.jy-svc__row:last-child { border-bottom: none; }
.jy-svc__n { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--orange-600); letter-spacing: .12em; }
.jy-svc__zh { font-family: var(--font-display); font-weight: 500; font-size: var(--text-2xl); color: var(--ink-900); display: flex; flex-direction: column; gap: 6px; }
.jy-svc__en { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--text-muted); }
.jy-svc__d { font: var(--type-body); color: var(--text-secondary); }
@media (max-width: 760px) {
  .jy-svc__row { grid-template-columns: 44px 1fr; gap: var(--space-4) var(--space-5); }
  .jy-svc__d { grid-column: 2; }
}

/* —— Journey + Values merged column (關於 page) —— */
.jy-pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-7) var(--space-6); margin-top: var(--space-8); padding-top: var(--space-8); border-top: 1px solid var(--hairline); }
.jy-pillar__zh { font-family: var(--font-display); font-weight: 500; font-size: var(--text-2xl); color: var(--ink-900); }
.jy-pillar__en { display: block; font-family: var(--font-sans); font-size: var(--text-2xs); font-weight: var(--fw-medium); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--orange-600); margin-top: 8px; }
.jy-pillar__d { font: var(--type-body-sm); color: var(--text-secondary); margin-top: var(--space-3); }
@media (max-width: 760px) { .jy-pillars { grid-template-columns: repeat(2, 1fr); } }

/* ====================  RESPONSIVE  ==================== */
@media (max-width: 960px) {
  .jy-nav, .jy-header__en { display: none; }
  .jy-header__in { grid-template-columns: 1fr auto 1fr; padding-left: 18px !important; padding-right: 18px !important; }
  .jy-iconbtn.jy-burger--right { display: none; }
  .jy-iconbtn.jy-burger--left { display: inline-flex; justify-self: start; align-self: center; }
  aside.jy-menu { left: 0; right: auto; transform: translateX(-100%); border-left: none; border-right: 1px solid rgba(0,0,0,0.06); box-shadow: 24px 0 60px rgba(20,18,15,.07); }
  aside.jy-menu.is-open { transform: none; }
  .jy-intro, .jy-esg-lead, .jy-esg-feat, .jy-contact, .jy-proj-ed__row, .jy-proj-ed__row:nth-child(even),
  .jy-proj-car__slide, .jy-foot__grid { grid-template-columns: 1fr !important; }
  .jy-proj-ed__row:nth-child(even) .jy-proj-ed__media { order: 0; }
  .jy-proc__track { grid-template-columns: repeat(2,1fr); gap: var(--space-7) var(--space-5); }
  .jy-esg-grid, .jy-values, .jy-trust__row { grid-template-columns: repeat(2,1fr); }
  .jy-esg-stack__row, .jy-esg-stack__row:nth-child(even) { grid-template-columns: 1fr; gap: var(--space-4); }
  .jy-esg-stack__row .jy-esg-stack__media { order: 0 !important; }
  .jy-foot__grid { gap: var(--space-7); }
  .jy-foot__contact .jy-foot__cf--addr .jy-foot__cv { white-space: normal; }
}
@media (max-width: 560px) {
  .jy-form__row, .jy-case { grid-template-columns: 1fr; }
  .jy-proc__track { grid-template-columns: 1fr; }
  .jy-intro__meta { gap: var(--space-6); }
  .jy-info__row { grid-template-columns: 1fr; gap: var(--space-1); }
  .jy-foot__bottom { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
}

/* ====================  SLIDE MENU (catalog-index style)  ==================== */
.jy-menu__scrim {
  position: fixed; inset: 0; z-index: 94; background: rgba(20,18,15,0.04);
  opacity: 0; visibility: hidden; transition: opacity var(--dur-slow) var(--ease-out), visibility var(--dur-slow) var(--ease-out);
}
.jy-menu__scrim.is-open { opacity: 1; visibility: visible; }
.jy-menu {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 95;
  width: clamp(360px, 25vw, 380px);
  background: rgba(248,247,243,0.78);
  -webkit-backdrop-filter: blur(24px) saturate(1.1); backdrop-filter: blur(24px) saturate(1.1);
  border-left: 1px solid rgba(0,0,0,0.06);
  box-shadow: -24px 0 60px rgba(20,18,15,.07);
  transform: translateX(100%); transition: transform var(--dur-slow) var(--ease-inout);
  display: flex; flex-direction: column;
}
.jy-menu.is-open { transform: none; }
.jy-menu__top { display: flex; justify-content: flex-end; padding: 22px 24px 0; }
.jy-menu__close { background: none; border: 0; cursor: pointer; padding: 6px; display: inline-flex; color: var(--ink-700); transition: color var(--dur-base) var(--ease-out); }
.jy-menu__close:hover { color: var(--ink-900); }

.jy-menu__inner {
  flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
  gap: clamp(26px, 4.5vh, 44px); padding: 12px 0 12px clamp(58px, 18%, 88px);
}
.jy-menu__main { display: flex; flex-direction: column; align-items: flex-start; gap: clamp(24px, 3.4vh, 32px); }
.jy-menu__second { display: flex; flex-direction: column; align-items: flex-start; gap: clamp(14px, 2vh, 18px); }

.jy-menu__item { position: relative; display: block; text-align: left; text-decoration: none; }
.jy-menu__dot { position: absolute; left: -22px; top: 0.46em; width: 5px; height: 5px; border-radius: 50%; background: var(--orange-500); }
.jy-menu__txt { display: block; }
.jy-menu__zh { display: block; font-family: var(--font-display); color: var(--ink-900); letter-spacing: .06em; line-height: 1.1; transition: color var(--dur-base) var(--ease-out); }
.jy-menu__en { display: block; font-family: var(--font-sans); font-size: 11px; letter-spacing: .15em; color: var(--ink-400); margin-top: 8px; }
.jy-menu__item--main .jy-menu__zh { font-size: 28px; font-weight: var(--fw-medium); }
.jy-menu__item--sec .jy-menu__zh { font-size: 20px; font-weight: var(--fw-medium); color: var(--ink-800); letter-spacing: .08em; }
.jy-menu__item:hover .jy-menu__zh { color: var(--orange-700); }

.jy-menu__div { width: clamp(190px, 64%, 230px); height: 1px; background: rgba(0,0,0,0.08); }

.jy-menu__lang { display: flex; align-items: center; gap: 10px; font-family: var(--font-sans); font-size: 14px; letter-spacing: .08em; }
.jy-menu__lang a { color: var(--ink-400); text-decoration: none; white-space: nowrap; transition: color var(--dur-base) var(--ease-out); }
.jy-menu__lang a.is-on { color: var(--ink-900); }
.jy-menu__lang a:hover { color: var(--orange-600); }
.jy-menu__langsep { color: var(--ink-300); }

.jy-menu__brand { text-align: left; padding: 0 0 40px clamp(58px, 18%, 88px); opacity: .45; }
.jy-menu__bname { font-family: var(--font-sans); font-size: 11px; font-weight: var(--fw-semibold); letter-spacing: .22em; color: var(--ink-900); }
.jy-menu__btag { font-family: var(--font-sans); font-size: 11px; letter-spacing: .06em; color: var(--ink-700); margin-top: 7px; }
.jy-menu__bsince { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--ink-600); margin-top: 5px; }

@media (max-width: 560px) {
  .jy-menu { width: min(86vw, 380px); }
}
.jy-iconbtn { background: none; border: 0; cursor: pointer; color: var(--ink-900); padding: 6px; display: inline-flex; }
/* fade the header out of the way while the slide menu is open */
body.jy-menu-open .jy-header { opacity: 0; pointer-events: none; transition: opacity var(--dur-base) var(--ease-out); }

/* ghost button on ink background */
.jy-ghost-inv { color: #fff !important; }
.jy-ghost-inv:hover { background: rgba(255,255,255,.1) !important; }

/* ====================  SERVICES (02 服務範疇)  ==================== */
.jy-svc2-sec { position: relative; padding-top: clamp(.5rem, 1.5vw, 1.5rem); }
.jy-svc2 { position: relative; }
.jy-svc2__head { max-width: 1000px; }
.jy-svc2__title {
  font-family: var(--font-display); font-weight: 500; color: var(--ink-900);
  font-size: clamp(2.1rem, 4vw, 3.5rem); line-height: 1.28; letter-spacing: .03em;
  margin: clamp(1.4rem, 2.2vw, 2rem) 0 0;
}
.jy-svc2__rule { display: block; width: 56px; height: 2px; background: var(--orange-500); margin: clamp(1.4rem, 2.2vw, 2rem) 0 0; }
.jy-svc2__lead {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-6);
  flex-wrap: wrap; margin: clamp(1.6rem, 2.6vw, 2.4rem) 0 clamp(2.4rem, 4vw, 3.4rem);
}
.jy-svc2__sub { font-family: var(--font-sans); font-size: clamp(.95rem, 1.05vw, 1.05rem); line-height: 1.7; letter-spacing: .04em; color: var(--text-secondary); margin: 0; max-width: 620px; }

.jy-svc2__grid { display: grid; grid-template-columns: repeat(3, 1fr); column-gap: 0; }
.jy-svc2__item {
  padding: clamp(1.9rem, 2.8vw, 2.8rem) clamp(1rem, 2.1vw, 2.1rem);
}
.jy-svc2__item:nth-child(3n+1) { padding-left: 0; }
.jy-svc2__item:nth-child(3n) { padding-right: 0; }
.jy-svc2__item:nth-child(n+4) { border-top: 1px solid rgba(29, 29, 31, .1); }
.jy-svc2__top { display: flex; align-items: center; gap: clamp(11px, 1.15vw, 17px); }
.jy-svc2__num { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.3rem, 3vw, 3.2rem); color: #c7c3bc; line-height: 1; letter-spacing: .01em; flex: none; }
.jy-svc2__vrule { align-self: stretch; width: 1px; background: rgba(29, 29, 31, .14); flex: none; }
.jy-svc2__icon { flex: none; width: clamp(44px, 4vw, 54px); height: clamp(44px, 4vw, 54px); display: flex; align-items: center; justify-content: center; }
.jy-svc2__icon img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; }
.jy-svc2__titles { min-width: 0; }
.jy-svc2__zh { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.05rem, 1.3vw, 1.28rem); color: var(--ink-900); letter-spacing: .03em; line-height: 1.3; white-space: nowrap; }
.jy-svc2__en { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--text-muted); line-height: 1.55; margin: 7px 0 0; }
.jy-svc2__desc { font-family: var(--font-sans); font-size: clamp(.8rem, .92vw, .9rem); line-height: 1.8; letter-spacing: .02em; color: var(--text-secondary); margin: clamp(16px, 1.8vw, 22px) 0 0; white-space: nowrap; }
@media (max-width: 900px) {
  .jy-svc2__grid { grid-template-columns: 1fr 1fr; }
  .jy-svc2__item:nth-child(3n+1) { padding-left: clamp(1rem, 2.1vw, 2.1rem); }
  .jy-svc2__item:nth-child(3n) { padding-right: clamp(1rem, 2.1vw, 2.1rem); }
  .jy-svc2__item:nth-child(odd) { padding-left: 0; }
  .jy-svc2__item:nth-child(even) { padding-right: 0; }
  .jy-svc2__item:nth-child(n+4) { border-top: none; }
  .jy-svc2__item:nth-child(n+3) { border-top: 1px solid rgba(29, 29, 31, .1); }
}
@media (max-width: 560px) {
  .jy-svc2__grid { grid-template-columns: 1fr; }
  .jy-svc2__item:nth-child(n+3) { border-top: none; }
  .jy-svc2__item:nth-child(n+2) { border-top: 1px solid rgba(29, 29, 31, .1); }
  .jy-svc2__desc { white-space: normal; }
}

/* ============================================================
   ABOUT PAGE — reference layout (01 理念 / 02 歷程 / 03 夥伴 / 04 專業)
   ============================================================ */
.jy-ab-sec { padding-block: clamp(3.4rem, 6vw, 6rem); }
.jy-ab-first { padding-top: clamp(7.5rem, 15vh, 10.5rem); }
.jy-ab-grid { display: grid; gap: clamp(2rem, 5vw, 5rem); align-items: start; }

/* —— left rail marker —— */
.jy-ab-rail { display: flex; flex-direction: column; }
.jy-ab-rail__n { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.6rem, 4vw, 3.6rem); line-height: 1; color: var(--orange-500); letter-spacing: .02em; }
.jy-ab-rail__zh { margin-top: clamp(1.4rem, 2.4vw, 2rem); font-family: var(--font-display); font-weight: 500; font-size: var(--text-base); letter-spacing: var(--tracking-cjk); color: var(--ink-900); }
.jy-ab-rail__en { margin-top: 5px; font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--ink-400); }
.jy-ab-rail__dash { margin-top: 16px; width: 26px; height: 1px; background: var(--orange-400); }

/* —— 01 philosophy —— */
.jy-ab-philo { grid-template-columns: clamp(150px, 14vw, 190px) minmax(0, 1fr); }
.jy-ab-philo__h { font-family: var(--font-display); font-weight: 400; font-size: clamp(2rem, 3.6vw, 3.1rem); line-height: 1.34; letter-spacing: .04em; color: var(--ink-900); text-align: center; }
.jy-ab-philo__p { margin-top: clamp(1.4rem, 2.4vw, 2rem); max-width: none; margin-inline: auto; white-space: nowrap; font-family: var(--font-sans); font-size: clamp(.92rem, 1.05vw, 1rem); line-height: 2.1; letter-spacing: .03em; color: var(--text-secondary); text-align: center; }
@media (max-width: 680px) { .jy-ab-philo__p { white-space: normal; max-width: 32em; } }
.jy-ab-stats { margin-top: clamp(2rem, 3.4vw, 3rem); margin-left: calc(-1 * (clamp(75px, 7vw, 95px) + clamp(2rem, 5vw, 5rem))); max-width: 560px; display: grid; grid-template-columns: repeat(4, 1fr); }
.jy-ab-stat { padding: clamp(1.1rem, 1.8vw, 1.5rem) clamp(.6rem, 1.4vw, 1.2rem); text-align: center; position: relative; }
.jy-ab-stat + .jy-ab-stat::before { content: ""; position: absolute; left: 0; top: 14%; bottom: 14%; border-left: 1px solid var(--hairline); }
.jy-ab-stat__n { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.25rem, 1.9vw, 1.7rem); color: var(--orange-700); letter-spacing: .02em; }
.jy-ab-stat__l { margin-top: 8px; font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: .08em; color: var(--ink-500); }
.jy-ab-philo__media { aspect-ratio: 4/5; background: var(--warm-2); border-radius: 4px; overflow: hidden; align-self: stretch; min-height: 320px; }

/* —— 01 philosophy: rail on top, statement block centred across full width —— */
.jy-ab-philo { grid-template-columns: 1fr; justify-items: center; }
.jy-ab-philo .jy-ab-rail { justify-self: center; text-align: center; align-items: center; }
.jy-ab-philo__body { width: 100%; display: flex; flex-direction: column; align-items: center; }
.jy-ab-philo .jy-ab-stats { margin-left: 0; margin-inline: auto; }

/* —— 02 journey timeline —— */
.jy-ab-journey { grid-template-columns: clamp(150px, 14vw, 190px) minmax(0, 1fr); }
.jy-ab-tl { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.4rem, 3vw, 3rem); padding-top: 38px; }
.jy-ab-tl::before { content: ""; position: absolute; top: 4px; left: 3px; right: 3px; height: 1px; background: var(--orange-200); }
.jy-ab-tl__col { position: relative; }
.jy-ab-tl__dot { position: absolute; top: -37.5px; left: -3.5px; width: 8px; height: 8px; background: var(--orange-500); transform: rotate(45deg); box-shadow: 0 0 0 4px var(--warm-white); }
.jy-ab-tl__yr { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.05rem, 1.5vw, 1.3rem); color: var(--orange-600); letter-spacing: .04em; }
.jy-ab-tl__t { margin-top: 12px; font-family: var(--font-display); font-weight: 500; font-size: clamp(1rem, 1.25vw, 1.18rem); color: var(--ink-900); letter-spacing: .04em; line-height: 1.4; }
.jy-ab-tl__d { margin-top: 14px; font-family: var(--font-sans); font-size: clamp(.82rem, .92vw, .9rem); line-height: 1.9; letter-spacing: .02em; color: var(--text-secondary); }

/* —— 03 trusted by —— */
.jy-ab-trust { grid-template-columns: minmax(240px, .78fr) minmax(0, 1.22fr); align-items: start; }
.jy-ab-trust__h { margin-top: clamp(1.6rem, 2.6vw, 2.2rem); font-family: var(--font-display); font-weight: 500; font-size: clamp(1.6rem, 2.6vw, 2.3rem); line-height: 1.4; letter-spacing: .04em; color: var(--ink-900); }
.jy-ab-trust__p { margin-top: clamp(1.1rem, 1.8vw, 1.5rem); max-width: 19em; font-family: var(--font-sans); font-size: clamp(.86rem, .98vw, .94rem); line-height: 1.95; letter-spacing: .03em; color: var(--text-secondary); }
.jy-ab-trust__hint { margin-top: clamp(1.4rem, 2.2vw, 2rem); display: flex; align-items: center; gap: 8px; font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: .06em; color: var(--ink-400); }
.jy-ab-trust__plus { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; color: var(--orange-500); font-size: 1.05rem; font-weight: 300; line-height: 1; }
.jy-ab-rows { border-top: 1px solid var(--hairline); }
.jy-ab-rowwrap { border-bottom: 1px solid var(--hairline); }
.jy-ab-row { display: grid; grid-template-columns: 30px 1fr auto 22px; align-items: center; gap: clamp(.9rem, 1.6vw, 1.4rem); width: 100%; padding: clamp(1.05rem, 1.8vw, 1.45rem) 4px; background: none; border: 0; cursor: pointer; font: inherit; color: inherit; text-align: left; transition: background var(--dur-base) var(--ease-out); }
.jy-ab-row:hover { background: var(--warm-2); }
.jy-ab-row__ic { width: 26px; height: 26px; color: var(--orange-500); display: flex; align-items: center; justify-content: center; }
.jy-ab-row__label { font-family: var(--font-display); font-weight: 500; font-size: clamp(1rem, 1.25vw, 1.18rem); letter-spacing: .05em; color: var(--ink-900); }
.jy-ab-row__count { font-family: var(--font-sans); font-weight: 500; font-size: clamp(.92rem, 1.05vw, 1.05rem); color: var(--ink-700); letter-spacing: .04em; }
.jy-ab-row__plus { justify-self: end; width: 22px; height: 22px; display: flex; align-items: center; justify-content: center; font-family: var(--font-sans); font-size: 1.25rem; font-weight: 300; line-height: 1; color: var(--orange-500); transition: transform var(--dur-base) var(--ease-inout), color var(--dur-base) var(--ease-out); }
.jy-ab-row:hover .jy-ab-row__plus { color: var(--orange-700); }
.jy-ab-row.is-open .jy-ab-row__plus { color: var(--orange-700); }
.jy-ab-rowlogos { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, 2vw, 1.8rem) clamp(1rem, 1.6vw, 1.6rem); padding: clamp(.4rem, 1vw, .9rem) 4px clamp(1.6rem, 2.6vw, 2.1rem); animation: jyRowReveal var(--dur-slow) var(--ease-out) both; --slot-frame-bg: transparent; --slot-ring: transparent; }
@keyframes jyRowReveal { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* —— 04 what we do —— */
.jy-ab-do { background: transparent; padding-block: clamp(3.6rem, 6.5vw, 6.5rem); }
.jy-ab-do__top { display: grid; grid-template-columns: minmax(210px, .85fr) minmax(0, 1.15fr) minmax(220px, .9fr); gap: clamp(2rem, 4vw, 4rem); align-items: start; }
.jy-ab-do .jy-ab-rail { margin-bottom: clamp(1.8rem, 3.2vw, 2.6rem); }
.jy-ab-dolist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: clamp(1.1rem, 1.9vw, 1.6rem); }
.jy-ab-doitem { display: flex; align-items: center; gap: 16px; }
.jy-ab-doitem__ic { flex: none; width: 30px; height: 30px; color: var(--orange-500); display: flex; align-items: center; justify-content: center; }
.jy-ab-doitem__tx { display: flex; flex-direction: column; gap: 3px; }
.jy-ab-doitem__zh { font-family: var(--font-display); font-weight: 500; font-size: clamp(.98rem, 1.15vw, 1.1rem); letter-spacing: .05em; color: var(--ink-900); }
.jy-ab-doitem__en { font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-400); }
.jy-ab-do__media { display: flex; align-items: center; justify-content: center; transform: translateY(clamp(-64px, -5vw, -32px)); }
.jy-ab-do__media img { max-width: 100%; height: auto; max-height: 440px; object-fit: contain; mix-blend-mode: multiply; }
.jy-ab-do__h { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.55rem, 2.5vw, 2.2rem); line-height: 1.4; letter-spacing: .04em; color: var(--ink-900); margin: 0; white-space: nowrap; }
.jy-ab-do__rule { display: block; width: 34px; height: 1px; background: var(--orange-400); margin: clamp(1.2rem, 2vw, 1.7rem) 0; }
.jy-ab-do__p { font-family: var(--font-sans); font-size: clamp(.88rem, 1vw, .96rem); line-height: 2; letter-spacing: .03em; color: var(--text-secondary); max-width: none; white-space: nowrap; }
.jy-ab-do__cta { margin-top: clamp(1.5rem, 2.6vw, 2.2rem); }
.jy-ab-pillars { margin-top: clamp(2.8rem, 5vw, 4.5rem); display: grid; grid-template-columns: repeat(4, 1fr); background: transparent; }
.jy-ab-pillar { padding: clamp(1.5rem, 2.4vw, 2.1rem) clamp(1.2rem, 2vw, 1.8rem); position: relative; }
.jy-ab-pillar + .jy-ab-pillar::before { content: ""; position: absolute; left: 0; top: 18%; bottom: 18%; border-left: 1px solid var(--hairline); }
.jy-ab-pillar__zh { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.15rem, 1.5vw, 1.4rem); letter-spacing: .12em; color: var(--ink-900); }
.jy-ab-pillar__en { margin-top: 8px; font-family: var(--font-sans); font-size: var(--text-2xs); letter-spacing: .14em; text-transform: uppercase; color: var(--orange-700); }
.jy-ab-pillar__d { margin-top: clamp(.9rem, 1.5vw, 1.2rem); font-family: var(--font-sans); font-size: clamp(.8rem, .9vw, .88rem); line-height: 1.85; letter-spacing: .02em; color: var(--text-secondary); }
.jy-ab-endcta { margin-top: clamp(2.4rem, 4vw, 3.5rem); margin-inline: auto; max-width: 720px; background: transparent; border: 0; padding: clamp(2rem, 3.4vw, 3rem) clamp(1.8rem, 3vw, 3rem); text-align: center; }
.jy-ab-endcta__p { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.05rem, 1.5vw, 1.35rem); line-height: 1.7; letter-spacing: .05em; color: var(--ink-700); }
.jy-ab-endcta__link { display: inline-flex; align-items: center; gap: 10px; margin-top: clamp(1.3rem, 2.2vw, 1.8rem); font-family: var(--font-sans); font-weight: 600; font-size: var(--text-sm); letter-spacing: .08em; color: var(--ink-900); text-decoration: none; border-bottom: 1px solid var(--ink-900); padding-bottom: 6px; transition: color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out); }
.jy-ab-endcta__link span { color: var(--orange-600); transition: transform var(--dur-base) var(--ease-out); }
.jy-ab-endcta__link:hover { color: var(--orange-700); border-color: var(--orange-400); }
.jy-ab-endcta__link:hover span { transform: translateX(4px); }

/* —— about responsive —— */
@media (max-width: 1080px) {
  .jy-ab-philo { grid-template-columns: clamp(140px, 16vw, 180px) 1fr; }
  .jy-ab-philo__media { grid-column: 1 / -1; aspect-ratio: 16/10; min-height: 0; }
  .jy-ab-do__top { grid-template-columns: 1fr 1fr; }
  .jy-ab-do__left { grid-column: 1 / -1; }
  .jy-ab-dolist { display: grid; grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .jy-ab-grid { gap: clamp(1.6rem, 5vw, 2.4rem); }
  .jy-ab-philo, .jy-ab-journey, .jy-ab-trust { grid-template-columns: 1fr; }
  .jy-ab-rowlogos { grid-template-columns: repeat(3, 1fr); }
  .jy-ab-stats { margin-left: 0; max-width: 100%; }
  .jy-ab-tl { grid-template-columns: 1fr 1fr; gap: 2rem 1.4rem; }
  .jy-ab-do__top { grid-template-columns: 1fr; }
  .jy-ab-dolist { grid-template-columns: 1fr 1fr; }
  .jy-ab-pillars { grid-template-columns: 1fr 1fr; }
  .jy-ab-pillar:nth-child(3)::before, .jy-ab-pillar:nth-child(odd)::before { display: none; }
  .jy-ab-pillar:nth-child(n+3) { border-top: 1px solid var(--hairline); }
}
@media (max-width: 480px) {
  .jy-ab-stats { grid-template-columns: 1fr 1fr; }
  .jy-ab-rowlogos { grid-template-columns: repeat(2, 1fr); }
  .jy-ab-stat:nth-child(3)::before { display: none; }
  .jy-ab-tl { grid-template-columns: 1fr; }
  .jy-ab-dolist { grid-template-columns: 1fr; }
  .jy-ab-pillars { grid-template-columns: 1fr; }
  .jy-ab-pillar + .jy-ab-pillar::before { display: none; }
  .jy-ab-pillar:nth-child(n+2) { border-top: 1px solid var(--hairline); }
}