/* ============================================================
   JD Morgan Education · 上海摩根英智
   Classical Academic × Editorial Minimalism
   ============================================================ */

:root{
  --indigo:      #03045E;
  --indigo-deep: #020338;
  --indigo-soft: #0A0E7A;
  --parchment:   #FFF3E6;
  --parchment-2: #F7F3ED;
  --bronze:      #B08D57;
  --gold:        #C9A86C;
  --ink:         #14152B;
  --paper-text:  rgba(247,243,237,.92);
  --paper-dim:   rgba(247,243,237,.62);
  --paper-faint: rgba(247,243,237,.38);
  --ink-dim:     rgba(20,21,43,.66);
  --ink-faint:   rgba(20,21,43,.4);
  --hairline-l:  rgba(247,243,237,.16);
  --hairline-d:  rgba(20,21,43,.14);
  --serif: "Instrument Serif", "Noto Serif SC", "Songti SC", serif;
  --sans:  "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono:  "DM Mono", "PingFang SC", monospace;
  --radius: 4px;
  --gutter: clamp(20px, 5vw, 84px);
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:auto; }
html.lenis, html.lenis body{ height:auto; }
.lenis.lenis-smooth{ scroll-behavior:auto !important; }
body{
  font-family:var(--sans);
  background:var(--parchment-2);
  color:var(--ink);
  font-size:clamp(15px,1.05vw,17px);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--gold); color:var(--indigo-deep); }

/* ---------- typography ---------- */
.display{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(44px, 6.4vw, 96px);
  line-height:1.02;
  letter-spacing:-0.02em;
}
.display em{ font-style:italic; color:var(--gold); }
.light .display em{ color:var(--bronze); }
.h2{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(32px, 3.6vw, 56px);
  line-height:1.08;
  letter-spacing:-0.015em;
}
.h3{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(22px, 2vw, 30px);
  line-height:1.2;
}
.zh{ font-family:"Noto Serif SC","Songti SC",serif; }
.lede{
  font-size:clamp(17px,1.4vw,21px);
  line-height:1.7;
  color:var(--ink-dim);
  max-width:56ch;
}
.dark .lede{ color:var(--paper-dim); }
.label{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--bronze);
  display:inline-flex;
  align-items:center;
  gap:14px;
}
.dark .label{ color:var(--gold); }
.label::before{
  content:"";
  width:34px; height:1px;
  background:currentColor;
  opacity:.7;
}
.body-dim{ color:var(--ink-dim); }
.dark .body-dim{ color:var(--paper-dim); }

/* ---------- layout ---------- */
.wrap{ padding-left:var(--gutter); padding-right:var(--gutter); max-width:1680px; margin:0 auto; }
.section{ padding-top:clamp(84px,10vw,150px); padding-bottom:clamp(84px,10vw,150px); position:relative; }
.dark{ background:var(--indigo); color:var(--paper-text); }
.dark-deep{ background:var(--indigo-deep); color:var(--paper-text); }
.light{ background:var(--parchment-2); color:var(--ink); }
.light-warm{ background:var(--parchment); color:var(--ink); }

.split{
  display:grid;
  grid-template-columns:minmax(220px, 4fr) 8fr;
  gap:clamp(32px,5vw,96px);
  align-items:start;
}
.split-side{ position:sticky; top:120px; }
.split-side .index{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.3em;
  color:var(--ink-faint);
  display:block;
  margin-top:18px;
}
.dark .split-side .index, .dark-deep .split-side .index{ color:var(--paper-faint); }
.split-side .zh-sub{
  font-family:"Noto Serif SC",serif;
  font-size:15px;
  color:var(--ink-faint);
  display:block;
  margin-top:8px;
  letter-spacing:.2em;
}
.dark .split-side .zh-sub, .dark-deep .split-side .zh-sub{ color:var(--paper-faint); }

.rule{ border:0; border-top:1px solid var(--hairline-d); }
.dark .rule, .dark-deep .rule{ border-top-color:var(--hairline-l); }

/* ---------- header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  transition:background .45s ease, border-color .45s ease, backdrop-filter .45s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(2,3,56,.86);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--hairline-l);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px var(--gutter);
}
.brand{ display:flex; align-items:center; gap:14px; }
.brand img{ width:44px; height:44px; border-radius:50%; background:#fff; }
.brand-name{
  font-family:var(--serif);
  font-size:19px;
  letter-spacing:.02em;
  color:var(--paper-text);
  line-height:1.1;
}
.brand-name small{
  display:block;
  font-family:"Noto Serif SC",serif;
  font-size:10.5px;
  letter-spacing:.34em;
  color:var(--gold);
  margin-top:3px;
}
.main-nav{ display:flex; align-items:center; gap:clamp(18px,2.4vw,38px); }
.main-nav a{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--paper-dim);
  padding:6px 0;
  position:relative;
  transition:color .3s;
}
.main-nav a::after{
  content:""; position:absolute; left:0; bottom:0;
  width:100%; height:1px; background:var(--gold);
  transform:scaleX(0); transform-origin:right;
  transition:transform .4s cubic-bezier(.2,.8,.2,1);
}
.main-nav a:hover, .main-nav a.active{ color:var(--paper-text); }
.main-nav a:hover::after, .main-nav a.active::after{ transform:scaleX(1); transform-origin:left; }
.nav-toggle{
  display:none;
  background:none; border:1px solid var(--hairline-l); border-radius:var(--radius);
  color:var(--paper-text); font-family:var(--mono); font-size:11px; letter-spacing:.24em;
  padding:10px 16px; cursor:pointer; text-transform:uppercase;
}
.mobile-menu{
  position:fixed; inset:0; z-index:99;
  background:var(--indigo-deep);
  display:flex; flex-direction:column; justify-content:center;
  padding:0 var(--gutter);
  opacity:0; visibility:hidden; transition:opacity .4s ease, visibility .4s;
}
.mobile-menu.open{ opacity:1; visibility:visible; }
.mobile-menu a{
  font-family:var(--serif); font-size:clamp(30px,7vw,44px); color:var(--paper-text);
  padding:14px 0; border-bottom:1px solid var(--hairline-l);
  display:flex; justify-content:space-between; align-items:baseline;
}
.mobile-menu a span{ font-family:var(--mono); font-size:10px; letter-spacing:.3em; color:var(--gold); }

/* ---------- hero ---------- */
.hero{
  position:relative; min-height:100svh;
  display:flex; align-items:flex-end;
  background:var(--indigo-deep);
  color:var(--paper-text);
  overflow:clip;
}
.hero-media{ position:absolute; inset:0; }
.hero-media img{ width:100%; height:100%; object-fit:cover; opacity:.5; }
.hero-media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(2,3,56,.55) 0%, rgba(3,4,94,.35) 45%, rgba(2,3,56,.92) 100%);
}
.hero-content{ position:relative; width:100%; padding-bottom:clamp(48px,7vh,96px); }
.hero .label{ margin-bottom:26px; }
.hero-title{ max-width:14ch; }
.hero-sub{
  margin-top:28px; max-width:52ch;
  color:var(--paper-dim);
  font-size:clamp(16px,1.3vw,19px);
}
.hero-zh{
  font-family:"Noto Serif SC",serif;
  letter-spacing:.42em;
  color:var(--gold);
  font-size:13px;
  margin-top:34px;
}
.hero-index{
  position:absolute; right:var(--gutter); bottom:clamp(48px,7vh,96px);
  text-align:right;
  font-family:var(--mono); font-size:11px; letter-spacing:.3em; color:var(--paper-faint);
  display:flex; flex-direction:column; gap:10px;
}
.hero-index b{ color:var(--gold); font-weight:400; }
.hero-small{ min-height:62svh; }
.scroll-hint{
  position:absolute; left:var(--gutter); bottom:26px;
  font-family:var(--mono); font-size:10px; letter-spacing:.34em; color:var(--paper-faint);
  display:flex; align-items:center; gap:12px;
}
.scroll-hint::after{ content:""; width:1px; height:44px; background:linear-gradient(var(--gold),transparent); }

/* ---------- pillar index (home) ---------- */
.pillars{ border-top:1px solid var(--hairline-d); }
.pillar{
  display:grid;
  grid-template-columns:110px 1fr auto;
  gap:clamp(20px,4vw,64px);
  align-items:center;
  padding:clamp(30px,3.6vw,52px) 0;
  border-bottom:1px solid var(--hairline-d);
  transition:background .35s ease, padding-left .35s ease;
  position:relative;
}
.pillar:hover{ background:rgba(176,141,87,.06); padding-left:18px; }
.pillar-num{
  font-family:var(--mono); font-size:13px; letter-spacing:.3em; color:var(--bronze);
}
.pillar-name{ font-family:var(--serif); font-size:clamp(26px,3vw,44px); line-height:1.1; }
.pillar-name small{
  display:block; font-family:"Noto Serif SC",serif; font-size:13px;
  letter-spacing:.3em; color:var(--ink-faint); margin-top:8px;
}
.pillar-desc{ max-width:34ch; color:var(--ink-dim); font-size:15px; }
.pillar-arrow{
  font-family:var(--serif); font-size:30px; color:var(--bronze);
  transition:transform .35s cubic-bezier(.2,.8,.2,1);
}
.pillar:hover .pillar-arrow{ transform:translateX(8px); }

/* ---------- photo treatments ---------- */
.polaroid{
  background:#fff;
  padding:12px 12px 16px;
  border:1px solid var(--hairline-d);
  border-radius:var(--radius);
  transform:rotate(-.3deg);
  transition:transform .5s cubic-bezier(.2,.8,.2,1);
}
.polaroid:nth-child(2n){ transform:rotate(.4deg); }
.polaroid:hover{ transform:rotate(0deg) translateY(-4px); }
.polaroid img{ border-radius:2px; aspect-ratio:4/3; object-fit:cover; width:100%; }
.polaroid figcaption{
  font-family:var(--mono); font-size:10.5px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--ink-faint);
  padding-top:12px;
  display:flex; justify-content:space-between; gap:10px;
}
.dark .polaroid, .dark-deep .polaroid{ background:#fff; color:var(--ink); }

.photo-grid{ display:grid; gap:clamp(16px,2vw,28px); }
.photo-grid.cols-2{ grid-template-columns:repeat(2,1fr); }
.photo-grid.cols-3{ grid-template-columns:repeat(3,1fr); }
.photo-grid.cols-4{ grid-template-columns:repeat(4,1fr); }

.figure-full{ position:relative; overflow:hidden; border-radius:var(--radius); }
.figure-full img{ width:100%; height:100%; object-fit:cover; }
.figure-caption{
  font-family:var(--mono); font-size:10.5px; letter-spacing:.2em; text-transform:uppercase;
  color:var(--ink-faint); margin-top:14px; display:flex; gap:14px; align-items:center;
}
.dark .figure-caption, .dark-deep .figure-caption{ color:var(--paper-faint); }
.figure-caption::before{ content:""; width:26px; height:1px; background:currentColor; }
.gallery-label{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--bronze); display:flex; gap:14px; align-items:center; line-height:1.7;
}
.dark .gallery-label, .dark-deep .gallery-label{ color:var(--gold); }
.gallery-label::before{ content:""; width:34px; height:1px; background:currentColor; opacity:.7; flex:none; }

/* ---------- quote ---------- */
.quote-block{ text-align:left; max-width:900px; }
.quote-mark{
  font-family:var(--serif); font-size:clamp(70px,8vw,120px); line-height:.6;
  color:var(--gold); display:block; margin-bottom:30px;
}
blockquote{
  font-family:var(--serif);
  font-size:clamp(24px,2.8vw,40px);
  line-height:1.3;
  letter-spacing:-0.01em;
}
blockquote em{ color:var(--gold); font-style:italic; }
.light blockquote em, .light-warm blockquote em{ color:var(--bronze); }
.quote-attr{
  margin-top:28px; font-family:var(--mono); font-size:11px; letter-spacing:.3em;
  text-transform:uppercase; color:var(--paper-faint);
}
.light .quote-attr, .light-warm .quote-attr{ color:var(--ink-faint); }

/* ---------- directory ---------- */
.directory{ border-top:1px solid var(--hairline-l); }
.dir-item{
  display:grid;
  grid-template-columns:90px 1.2fr 1fr auto;
  gap:clamp(18px,3vw,48px);
  align-items:baseline;
  padding:clamp(24px,2.8vw,40px) 0;
  border-bottom:1px solid var(--hairline-l);
}
.dir-num{ font-family:var(--mono); font-size:12px; letter-spacing:.28em; color:var(--gold); }
.dir-name{ font-family:var(--serif); font-size:clamp(20px,2vw,30px); line-height:1.15; }
.dir-name small{ display:block; font-family:"Noto Serif SC",serif; font-size:12px; letter-spacing:.24em; color:var(--paper-faint); margin-top:6px; }
.dir-note{ color:var(--paper-dim); font-size:14.5px; max-width:44ch; }
.dir-tag{
  font-family:var(--mono); font-size:10px; letter-spacing:.26em; text-transform:uppercase;
  color:var(--gold); border:1px solid rgba(201,168,108,.4); border-radius:var(--radius);
  padding:7px 12px; white-space:nowrap;
}

/* ---------- service list ---------- */
.svc{
  display:grid; grid-template-columns:70px 1fr; gap:clamp(20px,3vw,44px);
  padding:clamp(26px,3vw,42px) 0; border-bottom:1px solid var(--hairline-d);
}
.svc:first-of-type{ border-top:1px solid var(--hairline-d); }
.svc-num{ font-family:var(--mono); font-size:12px; letter-spacing:.28em; color:var(--bronze); padding-top:8px; }
.svc h3{ font-family:var(--serif); font-size:clamp(21px,1.9vw,28px); margin-bottom:10px; font-weight:400; }
.svc p{ color:var(--ink-dim); max-width:60ch; }

/* ---------- comparison table ---------- */
.compare{
  display:grid; grid-template-columns:1fr 1fr; gap:0;
  border:1px solid var(--hairline-d); border-radius:var(--radius); overflow:hidden;
}
.compare-col{ padding:clamp(28px,3.4vw,52px); }
.compare-col:first-child{ border-right:1px solid var(--hairline-d); background:rgba(20,21,43,.03); }
.compare-col.highlight{ background:var(--indigo); color:var(--paper-text); }
.compare-col h3{ font-family:var(--mono); font-size:11px; letter-spacing:.3em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:26px; }
.compare-col.highlight h3{ color:var(--gold); }
.compare-col ul{ list-style:none; }
.compare-col li{
  padding:16px 0; border-bottom:1px solid var(--hairline-d);
  font-size:15px; color:var(--ink-dim);
  display:flex; gap:14px; align-items:baseline;
}
.compare-col li:last-child{ border-bottom:0; }
.compare-col li::before{ content:"—"; color:var(--ink-faint); }
.compare-col.highlight li{ border-bottom-color:var(--hairline-l); color:var(--paper-dim); }
.compare-col.highlight li::before{ content:"✦"; color:var(--gold); font-size:11px; }

/* ---------- testimonials ---------- */
.testi{
  border:1px solid var(--hairline-d); border-radius:var(--radius);
  padding:clamp(26px,3vw,40px);
  display:flex; flex-direction:column; gap:22px;
  background:rgba(255,255,255,.5);
}
.testi p{ font-family:var(--serif); font-size:clamp(18px,1.6vw,23px); line-height:1.45; }
.testi-who{ font-family:var(--mono); font-size:10.5px; letter-spacing:.24em; text-transform:uppercase; color:var(--ink-faint); }
.testi-who b{ display:block; color:var(--bronze); margin-bottom:5px; font-weight:400; }
.testi.pending{ border-style:dashed; align-items:center; justify-content:center; text-align:center; color:var(--ink-faint); }

/* ---------- team ---------- */
.team-grid{ display:grid; grid-template-columns:repeat(2, minmax(0,1fr)); gap:clamp(24px,3vw,48px); }
.team-card{
  border:1px solid var(--hairline-d); border-radius:var(--radius);
  background:#fff;
  padding:clamp(30px,3.4vw,52px);
  display:flex; flex-direction:column; align-items:flex-start; gap:0;
  transition:transform .45s cubic-bezier(.2,.8,.2,1);
}
.team-card:hover{ transform:translateY(-5px); }
.team-avatar{
  width:clamp(140px,13vw,190px); height:auto;
  border-radius:50%;
  border:1px solid var(--hairline-d);
  outline:1px solid rgba(201,168,108,.55);
  outline-offset:7px;
  background:#fff;
  margin-bottom:30px;
}
.team-role{ font-family:var(--mono); font-size:10.5px; letter-spacing:.3em; text-transform:uppercase; color:var(--bronze); margin-bottom:12px; }
.team-name{ font-family:var(--serif); font-size:clamp(26px,2.4vw,36px); margin-bottom:18px; }
.team-bio{ color:var(--ink-dim); font-size:15px; }
.team-mail{ margin-top:22px; font-family:var(--mono); font-size:12px; letter-spacing:.08em; color:var(--indigo); border-bottom:1px solid var(--gold); padding-bottom:3px; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:14px;
  font-family:var(--mono); font-size:11px; letter-spacing:.28em; text-transform:uppercase;
  padding:16px 28px; border-radius:var(--radius);
  border:1px solid var(--gold); color:var(--gold);
  transition:background .35s, color .35s;
  background:transparent; cursor:pointer;
}
.btn:hover{ background:var(--gold); color:var(--indigo-deep); }
.btn.solid{ background:var(--gold); color:var(--indigo-deep); }
.btn.solid:hover{ background:var(--parchment); border-color:var(--parchment); }
.light .btn, .light-warm .btn{ border-color:var(--bronze); color:var(--bronze); }
.light .btn:hover, .light-warm .btn:hover{ background:var(--bronze); color:#fff; }
.light .btn.solid, .light-warm .btn.solid{ background:var(--indigo); border-color:var(--indigo); color:var(--paper-text); }
.light .btn.solid:hover, .light-warm .btn.solid:hover{ background:var(--bronze); border-color:var(--bronze); color:#fff; }

/* ---------- marquee strip ---------- */
.strip{
  overflow:clip; border-top:1px solid var(--hairline-l); border-bottom:1px solid var(--hairline-l);
  padding:20px 0; white-space:nowrap;
}
.strip-inner{ display:inline-flex; gap:64px; animation:strip 46s linear infinite; }
.strip span{
  font-family:var(--mono); font-size:11px; letter-spacing:.34em; text-transform:uppercase;
  color:var(--paper-faint); display:inline-flex; align-items:center; gap:64px;
}
.strip span::after{ content:"✦"; color:var(--gold); }
@keyframes strip{ to{ transform:translateX(-50%); } }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(32px,5vw,90px); align-items:start; }
.contact-line{
  display:grid; grid-template-columns:150px 1fr; gap:24px;
  padding:26px 0; border-bottom:1px solid var(--hairline-d);
}
.contact-line:first-of-type{ border-top:1px solid var(--hairline-d); }
.contact-line dt{ font-family:var(--mono); font-size:10.5px; letter-spacing:.28em; text-transform:uppercase; color:var(--ink-faint); padding-top:4px; }
.contact-line dd{ font-size:17px; }
.contact-line dd small{ display:block; font-family:"Noto Serif SC",serif; color:var(--ink-faint); font-size:13px; letter-spacing:.14em; margin-top:4px; }
.contact-line a{ border-bottom:1px solid var(--gold); padding-bottom:2px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--indigo-deep); color:var(--paper-text); }
.footer-top{
  display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:clamp(30px,5vw,80px);
  padding:clamp(60px,7vw,100px) 0;
}
.footer-brand img{ width:72px; height:72px; border-radius:50%; background:#fff; margin-bottom:24px; }
.footer-brand p{ color:var(--paper-dim); font-size:14.5px; max-width:38ch; }
.footer-brand .zh{ color:var(--gold); letter-spacing:.3em; font-size:12px; margin-top:16px; display:block; }
.footer-col h4{ font-family:var(--mono); font-size:10.5px; letter-spacing:.3em; text-transform:uppercase; color:var(--gold); margin-bottom:22px; }
.footer-col a{ display:block; padding:7px 0; color:var(--paper-dim); font-size:14.5px; transition:color .3s, padding-left .3s; }
.footer-col a:hover{ color:var(--paper-text); padding-left:6px; }
.footer-bottom{
  border-top:1px solid var(--hairline-l);
  padding:26px 0;
  display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap;
  font-family:var(--mono); font-size:10px; letter-spacing:.24em; text-transform:uppercase;
  color:var(--paper-faint);
}

/* ---------- reveal defaults (JS enhances) ---------- */
.reveal{ opacity:1; }

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .split{ grid-template-columns:1fr; }
  .split-side{ position:static; display:flex; flex-direction:column; gap:6px; }
  .photo-grid.cols-4{ grid-template-columns:repeat(2,1fr); }
  .dir-item{ grid-template-columns:60px 1fr; }
  .dir-note, .dir-tag{ grid-column:2; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
}
@media (max-width:760px){
  .hero .label{ letter-spacing:.2em; line-height:2.2; max-width:30ch; }
  .hero-zh{ letter-spacing:.3em; }
  .main-nav{ display:none; }
  .nav-toggle{ display:block; }
  .pillar{ grid-template-columns:60px 1fr; }
  .pillar-desc, .pillar-arrow{ display:none; }
  .photo-grid.cols-2, .photo-grid.cols-3{ grid-template-columns:1fr; }
  .compare{ grid-template-columns:1fr; }
  .compare-col:first-child{ border-right:0; border-bottom:1px solid var(--hairline-d); }
  .team-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; }
  .hero-index{ display:none; }
  .contact-line{ grid-template-columns:1fr; gap:6px; }
}