/* ===================== Tokens ===================== */
:root{
  --paper: #F4F4F2;
  --paper-2: #E8E8E5;
  --paper-3: #D8D8D4;
  --ink: #141414;
  --ink-soft: #5C5C58;
  --line: #D9D9D6;
  --line-strong: #BFBFBB;
  --brick: #141414;
  --brick-deep: #000000;
  --wood: #8C8C87;
  --charcoal: #141414;
  --white: #FFFFFF;

  --serif: 'Noto Sans TC', sans-serif;
  --sans: 'Noto Sans TC', sans-serif;
  --mono-en: 'Montserrat', sans-serif;

  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(.16,.8,.24,1);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

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

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

::selection{ background:var(--brick); color:var(--white); }

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

.br-mobile{ display:none; }
@media (max-width: 720px){
  .br-desktop{ display:none; }
  .br-mobile{ display:inline; }
}

/* subtle paper grain overlay */
.grain{
  position:fixed; inset:0; pointer-events:none; z-index:2000;
  opacity:0.035; mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===================== Nav ===================== */
.nav{
  position:sticky; top:0; z-index:1000;
  display:flex; align-items:center; justify-content:space-between;
  padding:18px var(--gutter);
  background:rgba(247,246,242,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav__mark{ display:flex; align-items:center; gap:10px; }
.nav__logo{ height:28px; width:auto; display:block; }
.nav__mark-cn{ font-family:var(--serif); font-weight:900; font-size:1.15rem; letter-spacing:.02em; }
.nav__mark-en{ font-family:var(--mono-en); font-size:.68rem; letter-spacing:.22em; color:var(--ink-soft); }

.nav__links{ display:flex; gap:clamp(18px,3vw,40px); font-size:.92rem; }
.nav__links a{
  display:flex; align-items:center; gap:6px;
  position:relative; padding:4px 0; color:var(--ink-soft);
  transition:color .2s var(--ease);
}
.nav__links a .num{ font-family:var(--serif); font-size:.8rem; color:var(--brick); }
.nav__links a:hover{ color:var(--ink); }
.nav__links a::after{
  content:''; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--brick); transition:right .28s var(--ease);
}
.nav__links a:hover::after{ right:0; }
.nav__links a.is-active{ color:var(--ink); }
.nav__links a.is-active::after{ right:0; }

.nav__toggle{
  display:none; background:none; border:0; cursor:pointer; padding:8px;
  flex-direction:column; gap:5px;
}
.nav__toggle span{ width:22px; height:1.5px; background:var(--ink); display:block; transition:transform .25s var(--ease), opacity .25s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

.mobile-menu{
  display:none; flex-direction:column;
  position:fixed; inset:0 0 auto 0; top:64px; z-index:999;
  background:var(--paper); border-bottom:1px solid var(--line);
  padding:8px var(--gutter) 24px;
  transform:translateY(-8px); opacity:0; pointer-events:none;
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.mobile-menu.open{ transform:translateY(0); opacity:1; pointer-events:auto; }
.mobile-menu a{ padding:14px 0; border-bottom:1px solid var(--line); font-size:1.05rem; }

@media (max-width: 860px){
  .nav__links{ display:none; }
  .nav__toggle{ display:flex; }
  .mobile-menu{ display:flex; }
}

/* ===================== Hero ===================== */
.hero{
  display:grid; grid-template-columns:0.86fr 1.14fr;
  min-height:calc(100vh - 66px);
  border-bottom:1px solid var(--line);
}
.hero__panel{
  display:flex; flex-direction:column; justify-content:center;
  padding:clamp(32px,6vw,80px) clamp(28px,5vw,64px);
  background:var(--paper);
  position:relative; overflow:hidden;
}
.eyebrow{
  font-family:var(--mono-en); font-size:.72rem; letter-spacing:.22em;
  text-transform:uppercase; color:var(--brick); margin:0 0 22px;
}
.hero__title{ margin:0 0 22px; }
.hero__title-cn{
  font-family:var(--serif); font-weight:900;
  font-size:clamp(2.4rem, 4.6vw, 3.6rem);
  line-height:1.28; letter-spacing:.01em; color:var(--ink);
}
.hero__tagline{
  font-size:1rem; color:var(--ink-soft); max-width:46ch; margin:0 0 18px; line-height:1.75;
}
.hero__tags{
  font-family:var(--mono-en); font-size:.82rem; letter-spacing:.04em;
  color:var(--ink); margin:0 0 32px;
}
.hero__cta{
  display:inline-flex; align-items:center; justify-content:center;
  flex-direction:column; gap:6px; align-self:flex-start;
  width:140px; height:140px; border-radius:50%;
  padding:0; background:var(--ink); color:var(--paper);
  font-size:.82rem; line-height:1.2; letter-spacing:.03em; text-align:center; white-space:nowrap;
  transition:background .22s var(--ease);
}
.hero__cta svg{ transition:transform .22s var(--ease); }
.hero__cta:hover{ background:#000; }
.hero__cta:hover svg{ transform:translateY(2px); }

.hero__panel::before{
  content:"HSD"; position:absolute; left:-0.05em; bottom:6%;
  font-family:var(--mono-en); font-weight:700;
  font-size:clamp(5.5rem,12vw,9.5rem); color:var(--line); opacity:.7;
  z-index:0; pointer-events:none; letter-spacing:-0.02em; line-height:1;
}
.hero__panel > *{ position:relative; z-index:1; }

.hero__image{ position:relative; overflow:hidden; background:var(--charcoal); }

/* ---- Hero photo carousel (crossfade) ---- */
.hero-carousel__slide{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:0; transition:opacity 1.1s ease; z-index:0;
}
.hero-carousel__slide.is-active{ opacity:1; z-index:1; }
.hero-carousel__dots{
  position:absolute; left:24px; bottom:22px; z-index:2;
  display:flex; gap:8px;
}
.hero-carousel__dots span{
  width:7px; height:7px; border-radius:50%; background:rgba(255,255,255,.45);
  transition:background .3s var(--ease), transform .3s var(--ease); cursor:pointer;
}
.hero-carousel__dots span.is-active{ background:#fff; transform:scale(1.25); }
.hero__image-caption{ z-index:2; }
.hero__image img{ width:100%; height:100%; object-fit:cover; }
.hero__image-caption{
  position:absolute; left:24px; bottom:22px;
  font-family:var(--mono-en); font-size:.7rem; letter-spacing:.08em;
  color:var(--white); background:rgba(20,18,15,0.55);
  padding:8px 14px; backdrop-filter:blur(4px);
}

@media (max-width:900px){
  .hero{ grid-template-columns:1fr; min-height:auto; }
  .hero__image{ height:52vh; order:-1; }
}

/* ===================== Strip (stats) ===================== */
.strip{
  display:flex; flex-wrap:wrap; gap:32px;
  align-items:center; justify-content:space-between;
  padding:44px var(--gutter);
  border-bottom:1px solid var(--line);
}
.strip__quote p{
  font-family:var(--serif); font-weight:900; font-style:normal;
  font-size:clamp(1.05rem,2vw,1.3rem); color:var(--ink); max-width:34ch; margin:0;
}
.strip__stats{ display:flex; gap:clamp(28px,5vw,64px); }
.stat{ display:flex; flex-direction:column; }
.stat__num{ font-family:var(--mono-en); font-weight:700; font-size:clamp(2rem,4vw,2.6rem); color:var(--brick); line-height:1; }
.stat__num small{ font-size:.5em; }
.stat__label{ font-size:.82rem; color:var(--ink-soft); margin-top:6px; }

/* ===================== Section scaffolding ===================== */
section{ padding:clamp(64px,9vw,120px) var(--gutter); }
.section-title{
  font-family:var(--serif); font-weight:900;
  font-size:clamp(1.7rem,3.2vw,2.3rem); margin:10px 0 0;
}
.section-title--light{ color:var(--paper); }

.section-badge{
  display:inline-flex; align-items:center; justify-content:center;
  width:56px; height:56px; border-radius:50%;
  border:1px solid var(--ink); font-family:var(--serif); font-weight:700; font-size:1.1rem;
  background:var(--ink); color:var(--white);
}
.section-badge--light{ border-color:var(--paper); color:var(--paper); background:transparent; }

/* ===================== About ===================== */
.about{
  display:grid; grid-template-columns:120px 1fr; gap:0 40px;
  max-width:var(--container); margin:0 auto;
  border-bottom:1px solid var(--line);
}
.about__lead{
  font-family:var(--serif); font-weight:600; font-size:clamp(1.15rem,2vw,1.4rem);
  line-height:1.6; max-width:56ch; margin:28px 0 22px;
}
.about__body-text{ color:var(--ink-soft); max-width:64ch; margin:0 0 40px; }
.about__figure{ overflow:hidden; border:1px solid var(--line); max-width:760px; }
.about__figure img{ width:100%; }

@media (max-width:760px){
  .about{ grid-template-columns:1fr; }
  .about__index{ margin-bottom:12px; }
}

/* ===================== Work / Portfolio ===================== */
.work{
  max-width:var(--container); margin:0 auto; border-bottom:1px solid var(--line);
  background:var(--paper-3);
  box-shadow:0 0 0 100vmax var(--paper-3);
  clip-path:inset(0 -100vmax);
  position:relative;
}
.work .card{ background:var(--paper); }
.work__head{ margin-bottom:48px; }
.work__intro{ color:var(--ink-soft); margin:14px 0 0; max-width:52ch; }

.work__grid{
  display:grid; grid-template-columns:repeat(2, 1fr);
  gap:clamp(24px, 3vw, 40px);
}
.card{
  background:var(--paper);
  display:flex; flex-direction:column;
  border:1px solid var(--line-strong);
  transition:opacity .6s var(--ease), transform .6s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
  opacity:0; transform:translateY(18px);
}
.card:hover{ border-color:var(--ink-soft); box-shadow:0 6px 24px rgba(20,18,15,0.08); }
.card.in-view{ opacity:1; transform:translateY(0); }

.card__media{ aspect-ratio:4/3; overflow:hidden; background:var(--paper-2); }
.card__media img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.card:hover .card__media img{ transform:scale(1.045); }

.card__meta{ display:flex; gap:16px; padding:22px 24px 26px; }
.card__index{
  font-family:var(--mono-en); font-weight:700; font-size:.85rem;
  color:var(--brick); padding-top:3px; flex-shrink:0;
}
.card__text h3{ font-family:var(--sans); font-weight:700; font-size:1rem; line-height:1.5; margin:0 0 8px; }
.card__tags{ font-size:.82rem; color:var(--ink-soft); margin:0; letter-spacing:.01em; }

@media (max-width:760px){
  .work__grid{ grid-template-columns:1fr; }
}

/* ===================== Services (dark) ===================== */
.services{ background:var(--charcoal); color:var(--paper); }
.services__head{ max-width:var(--container); margin:0 auto 48px; }
.services__grid{
  max-width:var(--container); margin:0 auto;
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:rgba(247,246,242,0.14);
  border-top:1px solid rgba(247,246,242,0.14);
  border-bottom:1px solid rgba(247,246,242,0.14);
}
.service{ background:var(--charcoal); padding:34px 26px 40px; }
.service__num{ font-family:var(--mono-en); color:var(--wood); font-weight:700; font-size:.85rem; }
.service h3{ font-family:var(--serif); font-weight:700; font-size:1.15rem; margin:16px 0 10px; }
.service p{ font-size:.9rem; color:#C9C5BA; margin:0; line-height:1.7; }

.services__note{ max-width:var(--container); margin:36px auto 0; }
.services__note p{ font-size:.88rem; color:#A9A497; max-width:60ch; margin:0; }

@media (max-width:900px){
  .services__grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:520px){
  .services__grid{ grid-template-columns:1fr; }
}

/* ===================== Process (工作流程) ===================== */
.process{ max-width:var(--container); margin:0 auto; border-bottom:1px solid var(--line); }
.process__head{ margin-bottom:48px; }
.process__intro{ color:var(--ink-soft); margin:14px 0 0; max-width:64ch; line-height:1.8; }
.process__grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
}
.process-step{ background:var(--paper); padding:32px 26px 38px; }
.process-step__num{ font-family:var(--mono-en); font-weight:700; font-size:2.55rem; color:var(--brick); line-height:1; display:block; }
.process-step h3{ font-family:var(--sans); font-weight:900; font-size:1.1rem; margin:16px 0 4px; }
.process-step__en{ font-family:var(--mono-en); font-size:.68rem; letter-spacing:.08em; color:var(--ink-soft); margin:0 0 12px; }
.process-step p:last-child{ font-size:.88rem; color:var(--ink-soft); margin:0; line-height:1.7; }
@media (max-width:900px){ .process__grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .process__grid{ grid-template-columns:1fr; } }

/* ---- Compact horizontal flow strip (overview above the detailed cards) ---- */
.process-flow{
  max-width:var(--container); margin:0 auto 56px;
  display:grid; grid-template-columns:repeat(4, 1fr); gap:28px 46px;
}
.process-flow__item{
  position:relative; text-align:center;
  border:1px solid var(--line); background:var(--paper);
  padding:20px 14px 18px;
}
.process-flow__num{
  display:inline-flex; align-items:center; justify-content:center;
  width:112px; height:112px; border-radius:50%;
  background:var(--paper-3); color:var(--ink);
  font-family:var(--mono-en); font-weight:700; font-size:2.55rem;
  margin:0 0 14px;
}
.process-flow__item h4{
  font-family:var(--sans); font-weight:700; font-size:.98rem;
  margin:0 0 6px; line-height:1.35; white-space:normal;
}
.process-flow__item p{
  font-family:var(--mono-en); font-size:.7rem; letter-spacing:.03em;
  color:var(--ink-soft); margin:0;
}
/* CSS-drawn arrows between cells in the same row */
.process-flow__item::after{ content:none; }
.process-flow__item:nth-child(1)::after,
.process-flow__item:nth-child(2)::after,
.process-flow__item:nth-child(3)::after,
.process-flow__item:nth-child(4)::after,
.process-flow__item:nth-child(5)::after,
.process-flow__item:nth-child(6)::after,
.process-flow__item:nth-child(7)::after{
  content:""; position:absolute; top:50%; right:-40px; z-index:2;
  transform:translateY(-50%);
  width:34px; height:24px;
  background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20viewBox%3D%220%200%20120%2080%22%3E%3Cpath%20d%3D%22M0%2C28%20L65%2C28%20L65%2C8%20L118%2C40%20L65%2C72%20L65%2C52%20L0%2C52%20Z%22%20fill%3D%22%23989892%22/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-size:contain; background-position:center;
}
@media (max-width:900px){
  .process-flow{ grid-template-columns:repeat(2, 1fr); gap:24px 40px; }
  .process-flow__item::after{ content:none !important; }
  .process-flow__item:nth-child(odd)::after{
    content:""; position:absolute; top:50%; right:-36px; z-index:2;
    transform:translateY(-50%);
    width:30px; height:21px;
    background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20viewBox%3D%220%200%20120%2080%22%3E%3Cpath%20d%3D%22M0%2C28%20L65%2C28%20L65%2C8%20L118%2C40%20L65%2C72%20L65%2C52%20L0%2C52%20Z%22%20fill%3D%22%23989892%22/%3E%3C/svg%3E");
    background-repeat:no-repeat; background-size:contain; background-position:center;
  }
}
@media (max-width:520px){
  .process-flow{ grid-template-columns:1fr; gap:18px; }
  .process-flow__item::after{ content:none !important; }
}

/* ===================== Why choose us (dark) ===================== */
.why{ background:var(--charcoal); color:var(--paper); }
.why__head{ max-width:var(--container); margin:0 auto 48px; }
.why__grid{
  max-width:var(--container); margin:0 auto;
  display:grid; grid-template-columns:repeat(5,1fr); gap:1px;
  background:rgba(247,246,242,0.14);
  border-top:1px solid rgba(247,246,242,0.14);
  border-bottom:1px solid rgba(247,246,242,0.14);
}
.why-item{ background:var(--charcoal); padding:32px 22px 38px; }
.why-item h3{ font-family:var(--sans); font-weight:900; font-size:1rem; margin:0 0 10px; color:var(--paper); }
.why-item p{ font-size:.86rem; color:#C9C5BA; margin:0; line-height:1.7; }
@media (max-width:1024px){ .why__grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:640px){ .why__grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:420px){ .why__grid{ grid-template-columns:1fr; } }

/* ===================== Contact ===================== */
.contact{ max-width:var(--container); margin:0 auto; }
.contact__head{ margin-bottom:48px; }
.contact__intro{ color:var(--ink-soft); margin:14px 0 0; }

.contact__grid{
  display:grid; grid-template-columns:0.9fr 1.1fr; gap:clamp(32px,5vw,80px);
}

.contact__info dl{ margin:0; }
.contact__row{
  display:grid; grid-template-columns:72px 1fr; gap:16px;
  padding:18px 0; border-bottom:1px solid var(--line);
}
.contact__row:first-child{ padding-top:0; }
.contact__row dt{ font-family:var(--mono-en); font-size:.75rem; letter-spacing:.12em; color:var(--ink-soft); text-transform:uppercase; }
.contact__row dd{ margin:0; font-weight:500; }
.contact__row dd .en-sub{ display:block; font-family:var(--mono-en); font-size:.78rem; color:var(--ink-soft); font-weight:400; margin-top:3px; }
.contact__row dd.placeholder{ color:var(--wood); font-style:italic; }
.contact__row dd a{ color:var(--ink); border-bottom:1px solid var(--line-strong); transition:color .2s var(--ease), border-color .2s var(--ease); }
.contact__row dd a:hover{ color:var(--brick); border-color:var(--brick); }
.contact__note{ font-size:.82rem; color:var(--ink-soft); margin:22px 0 0; line-height:1.7; }

.contact__form{ display:flex; flex-direction:column; gap:18px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:.82rem; color:var(--ink-soft); }
.field input, .field textarea{
  font-family:var(--sans); font-size:.98rem; color:var(--ink);
  background:var(--white); border:1px solid var(--line-strong);
  padding:12px 14px; border-radius:2px; resize:vertical;
  transition:border-color .2s var(--ease);
}
.field input:focus, .field textarea:focus{ border-color:var(--brick); }

.submit-btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  align-self:flex-start; margin-top:6px;
  padding:14px 28px; background:var(--brick); color:var(--white);
  border:0; border-radius:2px; font-size:.95rem; font-family:var(--sans); font-weight:500;
  cursor:pointer; transition:background .2s var(--ease), transform .2s var(--ease);
}
.submit-btn:hover{ background:var(--brick-deep); transform:translateX(2px); }
.form-note{ font-size:.78rem; color:var(--ink-soft); margin:0; }

@media (max-width:760px){
  .contact__grid{ grid-template-columns:1fr; }
}

/* ===================== Footer ===================== */
.footer{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:12px;
  padding:28px var(--gutter); border-top:1px solid var(--line);
}
.footer__mark{ font-family:var(--serif); font-weight:900; font-size:1rem; }
.footer__mark span{ font-family:var(--mono-en); font-weight:500; font-size:.68rem; letter-spacing:.18em; color:var(--ink-soft); margin-left:6px; }
.footer__copy{ font-family:var(--mono-en); font-size:.72rem; color:var(--ink-soft); margin:0; }

/* ===================== Card as button (a11y) ===================== */
.card{ cursor:pointer; display:block; }
.card__media{ position:relative; }
.card__media::after{
  content:'案例詳情'; font-family:var(--mono-en); font-size:.72rem; letter-spacing:.1em;
  color:var(--white); background:rgba(20,18,15,0.72);
  position:absolute; right:14px; bottom:14px; padding:8px 14px;
  opacity:0; transform:translateY(6px);
  transition:opacity .22s var(--ease), transform .22s var(--ease);
}
.card:hover .card__media::after, .card:focus-visible .card__media::after{ opacity:1; transform:translateY(0); }

/* ===================== Photo viewer (in-case zoom) ===================== */
.viewer{
  position:fixed; inset:0; z-index:3000;
  display:flex; align-items:center; justify-content:center;
  padding:clamp(12px, 4vw, 48px);
  opacity:0; pointer-events:none;
  transition:opacity .28s var(--ease);
}
.viewer.open{ opacity:1; pointer-events:auto; }
.viewer__backdrop{ position:absolute; inset:0; background:rgba(15,13,10,0.9); backdrop-filter:blur(2px); }
.viewer__stage{ position:relative; z-index:1; max-width:min(1200px,92vw); max-height:88vh; }
.viewer__stage img{ max-width:100%; max-height:88vh; object-fit:contain; }
.viewer__close, .viewer__nav{
  position:absolute; z-index:3;
  width:40px; height:40px; border-radius:50%; border:1px solid rgba(255,255,255,.5);
  background:rgba(20,18,15,0.45); color:var(--white);
  display:flex; align-items:center; justify-content:center; cursor:pointer;
  transition:background .2s var(--ease);
}
.viewer__close:hover, .viewer__nav:hover{ background:var(--brick); border-color:var(--brick); }
.viewer__close{ top:-52px; right:0; }
.viewer__nav--prev{ left:-56px; top:50%; transform:translateY(-50%); }
.viewer__nav--next{ right:-56px; top:50%; transform:translateY(-50%); }
@media (max-width:760px){
  .viewer__close{ top:-46px; right:0; }
  .viewer__nav--prev{ left:6px; }
  .viewer__nav--next{ right:6px; }
}

body.lb-open{ overflow:hidden; }


.reveal{ opacity:0; transform:translateY(16px); transition:opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in-view{ opacity:1; transform:translateY(0); }

/* ===================== Breadcrumb ===================== */
.breadcrumb{
  max-width:var(--container); margin:0 auto; padding:22px var(--gutter) 0;
  font-size:.82rem; color:var(--ink-soft); display:flex; gap:8px; flex-wrap:wrap;
}
.breadcrumb a{ color:var(--ink-soft); transition:color .2s var(--ease); }
.breadcrumb a:hover{ color:var(--brick); }
.breadcrumb span.sep{ color:var(--line-strong); }
.breadcrumb span.current{ color:var(--ink); }

/* ===================== Page hero (secondary pages) ===================== */
.page-hero{
  max-width:var(--container); margin:0 auto;
  padding:28px var(--gutter) 8px;
}
.page-hero .eyebrow{ margin-bottom:14px; }
.page-hero h1{
  font-family:var(--serif); font-weight:900; font-size:clamp(1.9rem,4vw,2.8rem);
  margin:0 0 16px; max-width:22ch; line-height:1.3;
}
.page-hero p{ color:var(--ink-soft); max-width:56ch; margin:0; }

/* ===================== Works index grid ===================== */
.works-index{
  max-width:var(--container); margin:0 auto; padding:40px var(--gutter) 100px;
  background:var(--paper-3);
  box-shadow:0 0 0 100vmax var(--paper-3);
  clip-path:inset(0 -100vmax);
  position:relative;
}
.works-index .card{ background:var(--paper); }
.works-filter button{ background:var(--paper); }
.works-filter{
  display:flex; flex-wrap:wrap; gap:10px; margin:0 0 36px;
}
.works-filter button{
  font-family:var(--sans); font-size:.85rem; padding:9px 18px;
  background:none; border:1px solid var(--line-strong); border-radius:20px;
  cursor:pointer; color:var(--ink-soft); transition:all .2s var(--ease);
}
.works-filter button:hover{ border-color:var(--ink); color:var(--ink); }
.works-filter button.active{ background:var(--ink); border-color:var(--ink); color:var(--paper); }

.works-grid{
  display:grid; grid-template-columns:repeat(2,1fr);
  gap:clamp(24px, 3vw, 40px);
}
@media (max-width:760px){ .works-grid{ grid-template-columns:1fr; } }

/* ===================== Case detail page ===================== */
.case-hero{ max-width:var(--container); margin:0 auto; padding:24px var(--gutter) 0; }
.case-hero__media{ aspect-ratio:16/8; overflow:hidden; border:1px solid var(--line); margin-top:20px; cursor:zoom-in; background:var(--paper-2); }
.case-hero__media img{ width:100%; height:100%; object-fit:cover; }
@media (max-width:760px){ .case-hero__media{ aspect-ratio:4/3; } }

.case-body{
  max-width:var(--container); margin:0 auto; padding:44px var(--gutter) 0;
  display:grid; grid-template-columns:1fr 300px; gap:56px;
}
.case-body__desc{ font-size:1rem; color:var(--ink-soft); line-height:1.9; max-width:62ch; }
.case-side{ border-left:1px solid var(--line); padding-left:32px; }
.case-side dl{ margin:0 0 30px; }
.case-side .row{ padding:12px 0; border-bottom:1px solid var(--line); }
.case-side .row:first-child{ padding-top:0; }
.case-side dt{ font-family:var(--mono-en); font-size:.7rem; letter-spacing:.1em; color:var(--ink-soft); text-transform:uppercase; }
.case-side dd{ margin:4px 0 0; font-weight:500; }
.case-cta{
  display:inline-flex; align-items:center; gap:10px;
  padding:13px 22px; background:var(--ink); color:var(--paper);
  font-size:.88rem; border-radius:2px; transition:background .2s var(--ease);
}
.case-cta:hover{ background:var(--brick); }

@media (max-width:860px){
  .case-body{ grid-template-columns:1fr; }
  .case-side{ border-left:0; border-top:1px solid var(--line); padding-left:0; padding-top:28px; }
}

.case-gallery{
  max-width:var(--container); margin:0 auto; padding:56px var(--gutter) 0;
  display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
}
.case-gallery img{
  width:100%; aspect-ratio:4/3; object-fit:cover; cursor:zoom-in;
  border:1px solid var(--line); transition:opacity .2s var(--ease);
}
.case-gallery img:hover{ opacity:.85; }
@media (max-width:760px){ .case-gallery{ grid-template-columns:1fr 1fr; } }

.case-nav{
  max-width:var(--container); margin:0 auto; padding:70px var(--gutter) 0;
  display:grid; grid-template-columns:1fr 1fr; border-top:1px solid var(--line);
}
.case-nav a{
  padding:34px 0; display:flex; flex-direction:column; gap:8px;
  transition:opacity .2s var(--ease);
}
.case-nav a:hover{ opacity:.6; }
.case-nav a.next{ text-align:right; align-items:flex-end; border-left:1px solid var(--line); padding-left:32px; }
.case-nav a.prev{ padding-right:32px; }
.case-nav .dir{ font-family:var(--mono-en); font-size:.72rem; letter-spacing:.12em; color:var(--brick); text-transform:uppercase; }
.case-nav .title{ font-family:var(--serif); font-weight:700; font-size:1.05rem; max-width:36ch; }
@media (max-width:640px){
  .case-nav{ grid-template-columns:1fr; }
  .case-nav a.next{ border-left:0; border-top:1px solid var(--line); padding-left:0; padding-top:24px; text-align:left; align-items:flex-start; }
}

/* ===================== About page ===================== */
.about-page{ max-width:var(--container); margin:0 auto; padding:16px var(--gutter) 0; }
.about-page__stats{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); margin:48px 0;
}
.about-page__stats .stat{ background:var(--paper); padding:30px 26px; align-items:flex-start; }

.values{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); margin:0 0 60px;
}
.value{ background:var(--paper); padding:30px 24px; }
.value__num{ font-family:var(--mono-en); color:var(--brick); font-weight:700; font-size:.85rem; }
.value h3{ font-family:var(--serif); font-size:1.05rem; margin:14px 0 8px; }
.value p{ font-size:.86rem; color:var(--ink-soft); margin:0; line-height:1.7; }
@media (max-width:860px){ .values{ grid-template-columns:1fr 1fr; } .about-page__stats{ grid-template-columns:1fr; } }
@media (max-width:520px){ .values{ grid-template-columns:1fr; } }
.legal-info{
  border-top:1px solid var(--line); margin-top:12px; padding-top:26px;
}
.legal-info p{
  font-size:1rem; color:var(--ink-soft); margin:0 0 10px; line-height:1.7;
  max-width:70ch;
}

/* ===================== Contact page ===================== */
.contact-page{ max-width:var(--container); margin:0 auto; padding:16px var(--gutter) 100px; }

/* ===================== Featured (home teaser) grid reuse ===================== */
.featured-grid{
  display:grid; grid-template-columns:repeat(3,1fr);
  gap:clamp(20px, 2.4vw, 32px);
}
@media (max-width:860px){ .featured-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .featured-grid{ grid-template-columns:1fr; } }

.view-all{
  display:inline-flex; align-items:center; gap:10px; margin-top:32px;
  font-size:.92rem; color:var(--ink); border-bottom:1px solid var(--ink); padding-bottom:2px;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.view-all:hover{ color:var(--brick); border-color:var(--brick); }


/* ===================================================================
   HOMEPAGE v2 — brand stamp, marquee, brand-intro, spotlight, flowchart
   =================================================================== */

.brand-stamp{
  font-family:var(--mono-en); font-weight:700; font-size:.78rem;
  letter-spacing:.14em; color:var(--ink); margin:0 0 20px; line-height:1.6;
}
.brand-stamp span{ color:var(--ink-soft); font-weight:500; letter-spacing:.06em; }

.hero--v2 .hero__image{ position:relative; }
.hero__lead{ font-family:var(--sans); font-weight:700; font-size:1.05rem; color:var(--ink); margin:0 0 14px; }

/* ---- Marquee (continuous photo strip) ---- */
.marquee{ padding:36px 0; border-bottom:1px solid var(--line); overflow:hidden; }
.marquee__label{
  max-width:var(--container); margin:0 auto 16px; padding:0 var(--gutter);
  font-family:var(--mono-en); font-size:.74rem; letter-spacing:.08em; color:var(--ink-soft);
}
.marquee__track{
  display:flex; gap:14px; width:max-content;
  animation:marquee-scroll 42s linear infinite;
}
.marquee:hover .marquee__track{ animation-play-state:paused; }
.marquee__item{
  flex:0 0 auto; width:260px; aspect-ratio:4/3; overflow:hidden;
  border:1px solid var(--line);
}
.marquee__item img{ width:100%; height:100%; object-fit:cover; }
@keyframes marquee-scroll{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .marquee__track{ animation:none; overflow-x:auto; }
}

/* ---- Brand intro (品牌理念) ---- */
.brand-intro{ max-width:var(--container); margin:0 auto; padding:clamp(64px,9vw,120px) var(--gutter); border-bottom:1px solid var(--line); }
.brand-intro__body{
  font-size:1.05rem; color:var(--ink-soft); max-width:58ch; margin:22px 0 48px; line-height:1.9;
}
.stat-trio{ display:flex; gap:clamp(40px,6vw,90px); flex-wrap:wrap; }
.stat-trio__item{ display:flex; flex-direction:column; }
.stat-trio__num{ font-family:var(--mono-en); font-weight:700; font-size:clamp(2.2rem,4vw,3rem); color:var(--brick); line-height:1; }
.stat-trio__num small{ font-size:.5em; }
.stat-trio__en{ font-family:var(--mono-en); font-size:.68rem; letter-spacing:.12em; color:var(--ink-soft); margin-top:10px; }
.stat-trio__cn{ font-size:.82rem; color:var(--ink-soft); margin-top:2px; }

/* ---- Work spotlight (作品案例 v2) ---- */
.work--v2{ max-width:var(--container); margin:0 auto; padding:clamp(64px,9vw,120px) var(--gutter); border-bottom:1px solid var(--line); }
.work__spotlight{ display:grid; grid-template-columns:1.6fr 1fr; gap:24px; margin-top:44px; }
.spotlight-main{ display:block; border:1px solid var(--line); background:var(--paper); }
.spotlight-main__media{ aspect-ratio:4/3; overflow:hidden; }
.spotlight-main__media img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.spotlight-main:hover .spotlight-main__media img{ transform:scale(1.04); }
.spotlight-main__meta{ display:flex; gap:18px; padding:26px 28px; }
.spotlight-main__meta h3{ font-family:var(--sans); font-weight:900; font-size:1.15rem; margin:0 0 8px; line-height:1.4; }
.spotlight-main__scope{ font-size:.82rem; color:var(--ink-soft); margin:4px 0 0; }
.spotlight-side{ display:flex; flex-direction:column; gap:1px; background:var(--line); border:1px solid var(--line); }
.card--sm{ background:var(--paper); display:flex; gap:14px; padding:16px; }
.card--sm .card__media{ flex:0 0 96px; width:96px; height:80px; overflow:hidden; }
.card--sm .card__media img{ width:100%; height:100%; object-fit:cover; }
.card--sm .card__meta{ padding:0; flex:1; }
.card--sm .card__text h3{ font-size:.86rem; line-height:1.4; }
.card--sm .card__tags{ font-size:.72rem; }
@media (max-width:860px){
  .work__spotlight{ grid-template-columns:1fr; }
}

/* ---- Services v2 (compact, bilingual) ---- */
.services__grid--v2 .service h3{ display:flex; flex-direction:column; gap:4px; }
.service__en{ font-family:var(--mono-en); font-weight:400; font-size:.66rem; letter-spacing:.06em; color:#A9A497; }

/* ---- Flowchart (branch/merge diagram) ---- */
.flowchart{ max-width:560px; margin:0 auto 60px; }
.flowchart__row{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.flowchart__cell{
  border:1px solid var(--line); background:var(--paper);
  text-align:center; padding:24px 14px 20px;
}
.flowchart__cell h4{ font-family:var(--sans); font-weight:700; font-size:.95rem; margin:6px 0 4px; }
.flowchart__cell p{ font-family:var(--mono-en); font-size:.66rem; letter-spacing:.03em; color:var(--ink-soft); margin:0; }
.flowchart__connector{
  display:flex; justify-content:center; padding:10px 0;
}
.flowchart__connector span{
  width:2px; height:22px; background:var(--line-strong); display:block;
  position:relative;
}
.flowchart__connector span::after{
  content:""; position:absolute; bottom:-1px; left:50%; transform:translateX(-50%);
  width:0; height:0;
  border-left:5px solid transparent; border-right:5px solid transparent;
  border-top:7px solid var(--line-strong);
}
.flowchart__connector--merge{ position:relative; height:34px; }
.flowchart__connector--merge span:nth-child(1){
  position:absolute; left:25%; top:0; height:16px;
}
.flowchart__connector--merge span:nth-child(2){
  position:absolute; right:25%; top:0; height:16px;
}
.flowchart__connector--merge span:nth-child(2)::after{ display:none; }
.flowchart__connector--merge span:nth-child(1)::after{ display:none; }
.flowchart__connector--merge::before{
  content:""; position:absolute; left:25%; right:25%; top:16px; height:2px; background:var(--line-strong);
}
.flowchart__connector--merge::after{
  content:""; position:absolute; left:50%; top:16px; transform:translateX(-50%);
  width:0; height:0;
  border-left:5px solid transparent; border-right:5px solid transparent;
  border-top:7px solid var(--line-strong);
  margin-top:12px;
}
@media (max-width:520px){
  .flowchart__row{ gap:12px; }
  .flowchart__cell{ padding:18px 8px 14px; }
}

/* ---- Why v2 (minimal, icon-free) ---- */
.why__grid--v2{ grid-template-columns:repeat(5,1fr); }
.why-item--v2{ text-align:center; padding:34px 16px; }
.why-item--v2 h3{ font-family:var(--sans); font-weight:700; font-size:.92rem; line-height:1.6; margin:0; color:var(--paper); }
@media (max-width:1024px){ .why__grid--v2{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:640px){ .why__grid--v2{ grid-template-columns:1fr 1fr; } }

/* ---- Final CTA ---- */
.final-cta{
  max-width:720px; margin:0 auto; padding:clamp(80px,10vw,140px) var(--gutter);
  text-align:center;
}
.final-cta__en{
  font-family:var(--mono-en); font-weight:700; font-size:clamp(1.3rem,3vw,1.9rem);
  letter-spacing:.02em; color:var(--ink); line-height:1.4; margin:0;
}
.final-cta__body{ font-size:1rem; color:var(--ink-soft); max-width:48ch; margin:0 auto; line-height:1.8; }
.final-cta__info{ margin-top:56px; padding-top:28px; border-top:1px solid var(--line); }
.final-cta__info p{ font-size:.82rem; color:var(--ink-soft); margin:0 0 8px; }
.final-cta__info p:first-child{ font-family:var(--sans); font-weight:900; color:var(--ink); font-size:.95rem; }