/* =====================================================================
   TURING · 图灵（成都）景观设计
   Minimal editorial portfolio — white ground, scattered image mosaic.
   ===================================================================== */

:root{
  --bg:      #ffffff;
  --ink:     #1a1a1a;
  --muted:   #8c8c8c;
  --faint:   #b6b6b6;
  --line:    rgba(0,0,0,.12);
  --line-2:  rgba(0,0,0,.06);

  --f-mono:    "Space Mono", "PingFang SC", "Hiragino Sans GB", ui-monospace, monospace;
  --f-display: "Jost", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --f-body:    "Inter", "PingFang SC", "Hiragino Sans GB", sans-serif;

  --ease:  cubic-bezier(.19,1,.22,1);
  --pad:   clamp(18px, 3.4vw, 48px);
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; scroll-behavior:smooth; }

body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-body);
  font-weight:400;
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
}

img{ display:block; width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--ink); color:var(--bg); }

.mono{ font-family:var(--f-mono); }
.only-sm{ display:none; }

/* ---------- i18n (English default, toggle to Chinese) ---------- */
[data-lang="en"] .cn{ display:none !important; }
[data-lang="cn"] .en{ display:none !important; }

/* ---------- Header ---------- */
.head{
  position:fixed; top:0; left:0; width:100%; z-index:200;
  display:grid; grid-template-columns:1fr auto 1fr; align-items:center;
  padding:15px var(--pad);
  background:rgba(255,255,255,.6);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.06);
  transform:translateY(-100%); opacity:0;
  transition:transform .7s var(--ease), opacity .7s var(--ease);
}
.head.show{ transform:translateY(0); opacity:1; }
.head.show.up{ transform:translateY(-120%); }
.head__side{ display:flex; gap:clamp(16px,2.4vw,40px); align-items:center; }
.head__side.r{ justify-self:end; }
.head__link{
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted); position:relative; transition:color .3s;
  display:inline-flex; align-items:center; gap:7px;
}
.head__link:hover{ color:var(--ink); }
.head__link.active{ color:var(--ink); }
.head__brand{ justify-self:center; }
.head__brand img{ width:auto; height:19px; display:block; }
.head__menu{
  display:none; background:none; border:none; cursor:pointer; padding:0;
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink);
  align-items:center; gap:8px;
}
.head__lang{
  background:none; border:1px solid var(--line); border-radius:20px; cursor:pointer;
  padding:5px 12px; font-family:var(--f-mono); font-size:10.5px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--muted); transition:color .3s, border-color .3s;
}
.head__lang:hover{ color:var(--ink); border-color:var(--ink); }
.icon{ width:13px; height:13px; stroke:currentColor; fill:none; stroke-width:1.4; }

@media (max-width:820px){
  .head{ padding:15px var(--pad); }
  .head__side .head__link{ display:none; }
  .head__menu{ display:inline-flex; }
  .head__side.r .head__link{ display:inline-flex; }
  .head__side.r .head__link .lbl{ display:none; }
  .head__brand img{ height:16px; }
}

/* ---------- Mobile overlay menu ---------- */
.mnav{
  position:fixed; inset:0; z-index:300; background:var(--bg);
  display:flex; flex-direction:column; justify-content:center; padding:var(--pad);
  clip-path:inset(0 0 100% 0); pointer-events:none; transition:clip-path .6s var(--ease);
}
.mnav.open{ clip-path:inset(0 0 0 0); pointer-events:auto; }
.mnav__close{ position:absolute; top:15px; right:var(--pad); background:none; border:none;
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink); cursor:pointer; }
.mnav a{ font-family:var(--f-display); font-weight:300; font-size:clamp(34px,11vw,58px); line-height:1.3; letter-spacing:.01em; }
.mnav a i{ font-family:var(--f-mono); font-style:normal; font-size:.24em; color:var(--muted); margin-left:.7em; letter-spacing:.1em; }
.mnav__foot{ position:absolute; bottom:var(--pad); left:var(--pad); font-family:var(--f-mono); font-size:10.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--faint); }

/* ---------- Home: logo intro ---------- */
.intro{
  position:fixed; inset:0; z-index:400; background:var(--bg);
  display:grid; place-items:center;
  transition:opacity .9s var(--ease), visibility .9s;
}
.intro.done{ opacity:0; visibility:hidden; }
.intro__logo{ width:min(44vw,400px); opacity:0; }
.intro__logo.in{ animation:introLogo 2.2s var(--ease) forwards; }
@keyframes introLogo{
  0%{ opacity:0; transform:translateY(8px) scale(.99); }
  28%{ opacity:1; transform:translateY(0) scale(1); }
  68%{ opacity:1; transform:translateY(0) scale(1); }
  100%{ opacity:0; transform:translateY(0) scale(1.03); }
}

/* ---------- Scatter mosaic (home + works) ---------- */
.scatter{ padding:calc(72px + var(--pad)) 0 clamp(80px,12vw,180px); }
.scatter__intro{ padding:clamp(50px,10vw,130px) var(--pad) clamp(40px,7vw,90px); max-width:760px; }
.scatter__intro h1{ font-family:var(--f-display); font-weight:300; font-size:clamp(30px,5.4vw,66px); line-height:1.08; letter-spacing:-.01em; }
.scatter__intro p{ margin-top:22px; color:var(--muted); font-size:15px; line-height:1.75; max-width:52ch; }

.mosaic{
  columns:3; column-gap:clamp(24px,4vw,72px);
  padding:0 var(--pad);
}
.tile{
  break-inside:avoid; margin:0 0 clamp(46px,7vw,110px);
  opacity:0; transform:translateY(30px); transition:opacity 1s var(--ease), transform 1s var(--ease);
  display:block;
}
.tile.in{ opacity:1; transform:translateY(0); }
/* organic width + horizontal offset variation, per column-child */
.tile:nth-child(6n+1){ width:100%; }
.tile:nth-child(6n+2){ width:78%;  margin-left:auto; }
.tile:nth-child(6n+3){ width:64%; }
.tile:nth-child(6n+4){ width:92%;  margin-left:auto; }
.tile:nth-child(6n+5){ width:70%;  margin-left:12%; }
.tile:nth-child(6n+6){ width:85%; }
/* varied vertical rhythm */
.tile:nth-child(4n+2){ margin-top:clamp(30px,5vw,80px); }
.tile:nth-child(4n+4){ margin-top:clamp(16px,3vw,46px); }

.tile__fig{ position:relative; overflow:hidden; background:#f2f2f2; }
.tile__fig img{ transition:transform 1.2s var(--ease), filter .6s; }
.tile:hover .tile__fig img{ transform:scale(1.035); }
.tile__cap{
  margin-top:12px; display:flex; justify-content:space-between; gap:14px;
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.11em; text-transform:uppercase; color:var(--muted);
  transition:color .3s;
}
.tile:hover .tile__cap{ color:var(--ink); }
.tile__cap .r{ color:var(--faint); text-align:right; white-space:nowrap; }

@media (max-width:1100px){ .mosaic{ columns:2; } }
@media (max-width:640px){
  .mosaic{ columns:1; column-gap:0; }
  .tile,
  .tile:nth-child(6n+1),.tile:nth-child(6n+2),.tile:nth-child(6n+3),
  .tile:nth-child(6n+4),.tile:nth-child(6n+5),.tile:nth-child(6n+6){
    width:100% !important; margin-left:0 !important; margin-top:0 !important;
    margin-bottom:clamp(40px,10vw,60px);
  }
}

/* ---------- Page intro (inner pages) ---------- */
.page{ padding:calc(96px + var(--pad)) var(--pad) 0; }
.eyebrow{ font-family:var(--f-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--faint); }
.page__title{ font-family:var(--f-display); font-weight:300; font-size:clamp(40px,9vw,120px); line-height:.98; letter-spacing:-.01em; margin-top:22px; }
.page__sub{ margin-top:26px; max-width:56ch; color:var(--muted); font-size:15.5px; line-height:1.8; }

/* ---------- Manifesto / studio ---------- */
.section{ padding:clamp(80px,13vw,180px) var(--pad); }
.lead{ font-family:var(--f-display); font-weight:300; font-size:clamp(24px,4.4vw,58px); line-height:1.18; letter-spacing:-.01em; max-width:20ch; }
.lead em{ font-style:italic; color:var(--muted); }
.cols{ margin-top:clamp(46px,7vw,90px); display:grid; grid-template-columns:1fr 1fr; gap:36px 60px; }
.cols p{ color:var(--muted); font-size:14.5px; line-height:1.85; }
.cols p + p{ margin-top:16px; }
@media (max-width:760px){ .cols{ grid-template-columns:1fr; gap:26px; } }

/* team */
.team{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(34px,6vw,80px); margin-top:clamp(50px,8vw,110px); }
.member__fig{ overflow:hidden; width:min(260px,64%); aspect-ratio:1/1; margin-bottom:26px; filter:grayscale(1) contrast(1.03); }
.member__fig img{ height:100%; object-fit:cover; }
.member__name{ font-family:var(--f-display); font-weight:300; font-size:clamp(24px,3vw,36px); letter-spacing:.01em; }
.member__name span{ font-family:var(--f-mono); font-size:.34em; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-left:14px; }
.member__role{ font-family:var(--f-mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin-top:10px; }
.member__bio{ margin-top:20px; font-size:14px; line-height:1.8; color:var(--muted); max-width:48ch; }
.member__bio p + p{ margin-top:14px; }
@media (max-width:760px){ .team{ grid-template-columns:1fr; gap:64px; } }

/* dedicated Team page — large alternating portraits */
.trow{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(30px,5vw,84px); align-items:center;
  padding:clamp(50px,8vw,110px) var(--pad); border-top:1px solid var(--line-2); }
.trow:nth-child(even) .trow__fig{ order:2; }
.trow__fig{ overflow:hidden; aspect-ratio:4/5; background:#f2f2f2; filter:grayscale(1) contrast(1.03); }
.trow__fig img{ height:100%; object-fit:cover; }
.tname{ font-family:var(--f-display); font-weight:300; font-size:clamp(30px,5vw,64px); line-height:1; }
.tname span{ display:block; font-family:var(--f-mono); font-size:.22em; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin-top:16px; }
.trole{ font-family:var(--f-mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin:22px 0 18px; }
.tbio{ color:var(--muted); font-size:15px; line-height:1.85; max-width:48ch; }
.tbio p + p{ margin-top:14px; }
@media (max-width:800px){ .trow{ grid-template-columns:1fr; gap:24px; } .trow:nth-child(even) .trow__fig{ order:0; } .trow__fig{ width:min(360px,80%); } }

/* clients row */
.clients{ margin-top:clamp(70px,10vw,130px); }
.clients h4{ font-family:var(--f-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--faint); margin-bottom:26px; }
.clients__row{ display:flex; flex-wrap:wrap; gap:14px 34px; }
.clients__row span{ font-family:var(--f-display); font-weight:300; font-size:clamp(16px,2vw,26px); color:var(--ink); opacity:.7; }

/* ---------- Project detail ---------- */
.proj-hero{ padding:calc(120px + var(--pad)) var(--pad) clamp(40px,6vw,72px); display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:end; }
.proj-hero__no{ font-family:var(--f-mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--faint); }
.proj-hero h1{ font-family:var(--f-display); font-weight:300; font-size:clamp(34px,6vw,84px); line-height:1; letter-spacing:-.01em; margin-top:18px; }
.proj-hero h1 .sub{ display:block; font-size:.4em; color:var(--muted); margin-top:16px; letter-spacing:0; }
.proj-hero__meta{ display:flex; flex-direction:column; gap:9px; }
.proj-hero__meta .row{ display:flex; justify-content:space-between; gap:20px; border-top:1px solid var(--line-2); padding-top:9px;
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.06em; color:var(--muted); text-transform:uppercase; }
.proj-hero__meta .row b{ color:var(--ink); font-weight:400; }
@media (max-width:820px){ .proj-hero{ grid-template-columns:1fr; gap:30px; } }

.proj-quote{ padding:clamp(70px,12vw,150px) var(--pad); text-align:center; }
.proj-quote h2{ font-family:var(--f-display); font-weight:300; font-size:clamp(22px,3.6vw,46px); line-height:1.3; max-width:22ch; margin-inline:auto; }
.proj-quote p{ margin-top:16px; color:var(--muted); font-size:15px; }

.proj-gallery{ padding:0 var(--pad) clamp(70px,10vw,140px); display:flex; flex-direction:column; gap:clamp(18px,2.6vw,40px); }
.proj-gallery figure{ overflow:hidden; background:#f2f2f2; opacity:0; transform:translateY(30px); transition:opacity 1s var(--ease), transform 1s var(--ease); }
.proj-gallery figure.in{ opacity:1; transform:translateY(0); }
.proj-desc{ padding:clamp(60px,9vw,120px) var(--pad); display:grid; grid-template-columns:1fr 1fr; gap:40px 60px; border-top:1px solid var(--line-2); }
.proj-desc h3{ font-family:var(--f-mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--faint); margin-bottom:20px; }
.proj-desc p{ color:var(--muted); font-size:15px; line-height:1.85; }
@media (max-width:820px){ .proj-desc{ grid-template-columns:1fr; gap:30px; } }

.proj-next{ padding:clamp(70px,11vw,150px) var(--pad); border-top:1px solid var(--line); text-align:center; }
.proj-next small{ font-family:var(--f-mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--faint); }
.proj-next a{ display:block; font-family:var(--f-display); font-weight:300; font-size:clamp(30px,6vw,72px); margin-top:16px; transition:color .3s; }
.proj-next a:hover{ color:var(--muted); }

/* ---------- Contact ---------- */
.contact{ padding:calc(120px + var(--pad)) var(--pad) clamp(90px,14vw,180px); }
.contact__mail{ font-family:var(--f-display); font-weight:300; font-size:clamp(30px,6.4vw,88px); line-height:1; letter-spacing:-.01em; position:relative; display:inline-block; }
.contact__mail::after{ content:""; position:absolute; left:0; bottom:2px; height:1px; width:100%; background:var(--ink); transform:scaleX(0); transform-origin:left; transition:transform .5s var(--ease); }
.contact__mail:hover::after{ transform:scaleX(1); }
.contact__grid{ margin-top:clamp(60px,9vw,120px); display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(34px,4vw,50px) 30px; }
.contact__block{ border-top:1px solid var(--line); padding-top:22px; }
.contact__block h4{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:.2em; text-transform:uppercase; color:var(--faint); margin-bottom:16px; }
.contact__block p{ font-size:14.5px; line-height:1.7; color:var(--muted); }
.contact__block p b{ color:var(--ink); font-weight:400; }
@media (max-width:900px){ .contact__grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .contact__grid{ grid-template-columns:1fr; } }

/* ---------- Footer ---------- */
.foot{ padding:clamp(50px,7vw,80px) var(--pad) 30px; border-top:1px solid var(--line); }
.foot__grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:26px; margin-bottom:clamp(40px,6vw,64px); }
.foot__grid h4{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:.2em; text-transform:uppercase; color:var(--faint); margin-bottom:14px; }
.foot__grid a, .foot__grid p{ display:block; font-size:13.5px; color:var(--muted); line-height:1.7; }
.foot__grid a:hover{ color:var(--ink); }
.foot__base{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; flex-wrap:wrap;
  border-top:1px solid var(--line-2); padding-top:24px; }
.foot__logo{ height:16px; width:auto; opacity:.8; }
.foot__tag{ font-size:12.5px; color:var(--muted); max-width:40ch; line-height:1.6; }
.foot__bar{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; width:100%; margin-top:22px;
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--faint); }
@media (max-width:760px){ .foot__grid{ grid-template-columns:1fr 1fr; gap:30px; } .foot__base{ gap:16px; } }

/* reveal helper */
.rise{ opacity:0; transform:translateY(24px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.rise.in{ opacity:1; transform:translateY(0); }