:root{
  --bg:#eef0ea;
  --surface:#e1e5dc;
  --ink:#1b1d1a;
  --muted:#5f645b;
  --accent:#4f6b5d;
  --accent-ink:#f5f7f1;
  --small:14px;
  --body:18px;
  --lead:24px;
  --head:clamp(40px,4.8vw,64px);
  --display:clamp(56px,8vw,120px);
  --margin:6vw;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:var(--body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;filter:grayscale(1) contrast(1.06) brightness(1.02)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- head ---------- */
.site-head{
  position:absolute;inset:0 0 auto 0;z-index:20;
  display:flex;align-items:center;gap:clamp(20px,3vw,48px);
  padding:26px var(--margin);
}
.wordmark{font-size:20px;letter-spacing:.08em;margin-right:auto}
.site-nav{display:flex;gap:26px;font-size:var(--small)}
.site-nav a{color:var(--muted);transition:color .25s}
.site-nav a:hover{color:var(--ink)}
.nav-toggle{display:none;background:none;border:0;padding:6px 0;font-size:var(--small);cursor:pointer}
.btn{
  display:inline-block;border:0;cursor:pointer;
  background:var(--accent);color:var(--accent-ink);
  padding:12px 20px;font-size:var(--small);letter-spacing:.04em;
  transition:background .25s,transform .2s;
}
.btn:hover{background:#833c31}
.btn:active{transform:translateY(1px)}
.btn--head{padding:10px 16px}

@media(min-width:901px){.site-head{padding-right:calc(var(--margin) - 15px)}}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:100svh;
  padding:0 var(--margin) 74px;
  display:flex;align-items:stretch;
}
.hero-grid{
  width:100%;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  grid-template-rows:1fr auto;
  gap:0 20px;
  padding-top:110px;
}
.hero-copy{grid-column:1/7;grid-row:2;align-self:end}
.hero-title{
  margin:0 0 10px;
  font-weight:400;
  font-size:clamp(52px,8.2vw,118px);
  line-height:1.02;
  letter-spacing:-.02em;
}
.hero-sub{margin:0 0 16px;font-size:40px;line-height:1.2;font-weight:400}
.hero-lead{
  margin:0;
  max-width:30ch;
  font-size:18px;
  line-height:1.7;
  color:var(--ink);
}
.hero-photo{margin:0}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-photo--large{
  grid-column:8/12;grid-row:1;
  align-self:start;
  width:100%;
  height:46vh;
  margin-top:5vh;
  overflow:hidden;
}
.hero-photo--large img{animation:slow-drift 22s ease-in-out infinite alternate}
.hero-photo--small{
  grid-column:2/4;grid-row:1;
  align-self:end;
  width:100%;
  aspect-ratio:1/1;
  margin-bottom:12vh;
  overflow:hidden;
}
.hero-photo--small img{opacity:.9}
.hero-note{
  grid-column:10/13;grid-row:2;align-self:end;justify-self:end;
  margin:0 0 6px;text-align:right;
  font-size:14px;line-height:1.7;color:var(--muted);
}

@keyframes slow-drift{from{transform:scale(1.02)}to{transform:scale(1.07)}}

/* ---------- about ---------- */
.about{
  display:grid;grid-template-columns:4fr 7fr;gap:0 6vw;
  padding:150px var(--margin) 130px;
}
.about-head h2{
  position:static;
  margin:0;font-weight:400;font-size:clamp(48px,5vw,64px);line-height:1;letter-spacing:-.02em;
}
.about-body{display:flex;flex-direction:column;gap:44px}
.about-photo{margin:0}
.about-photo--a{width:72%;aspect-ratio:4/5;overflow:hidden;align-self:flex-start}
.about-photo--b{display:block;width:64%;aspect-ratio:16/10;overflow:hidden;align-self:flex-end}
.about-photo img{width:100%;height:100%;object-fit:cover}
.about-text p{margin:0 0 22px;max-width:34ch;font-size:18px}
.about-text .drop{font-size:var(--lead);line-height:1.5}
.about-teacher{max-width:36ch}
.about-teacher h3{margin:0 0 12px;font-weight:400;font-size:24px}
.about-teacher p{margin:0 0 14px;font-size:18px}
.muted{color:var(--muted);font-size:var(--small)}

/* ---------- courses ---------- */
.courses{
  display:grid;grid-template-columns:4fr 7fr;gap:0 6vw;
  padding:130px var(--margin) 140px;
}
.courses-head h2{
  margin:0 0 54px;font-weight:400;font-size:var(--head);line-height:1.08;letter-spacing:-.01em;
}
.courses-widget{margin-bottom:70px}
.widget-lead{margin:0 0 14px;font-size:var(--small);color:var(--muted)}
.strings{display:flex;align-items:flex-start;gap:10px;height:132px}
.string{
  position:relative;width:30px;height:132px;padding:0;border:0;background:none;cursor:pointer;
}
.string::before{
  content:"";position:absolute;left:50%;top:0;width:2px;height:118px;background:var(--ink);
  transform:translateX(-50%);transition:background .2s,width .2s;
}
.string span{
  position:absolute;left:0;right:0;bottom:0;text-align:center;font-size:13px;color:var(--muted);
}
.string:hover::before,.string:focus-visible::before{background:var(--accent);width:3px}
.string.is-plucked::before{animation:string-vibrate .5s ease-out}
@keyframes string-vibrate{
  0%{transform:translateX(-50%) scaleX(1)}
  25%{transform:translateX(-50%) scaleX(2.2)}
  100%{transform:translateX(-50%) scaleX(1)}
}
.widget-note{margin:8px 0 0;font-size:14px;color:var(--muted)}
.courses-photo{margin:40px 0 0;width:74%;aspect-ratio:5/4;overflow:hidden}
.courses-photo img{width:100%;height:100%;object-fit:cover}

.courses-table-wrap{padding-top:6px}
.table-label{margin:0 0 26px;font-size:14px;color:var(--muted)}
.courses-table{width:100%;border-collapse:collapse;font-size:18px}
.courses-table th,.courses-table td{padding:20px 0;vertical-align:top;text-align:left}
.courses-table thead th{font-weight:400;color:var(--muted);font-size:14px;padding-top:0}
.courses-table tbody th{font-weight:400;width:22%}
.courses-table td:nth-child(2){width:52%;padding-right:24px;color:var(--ink)}
.courses-table td:last-child{text-align:right;white-space:nowrap}
.courses-table tbody tr{transition:background .25s}
.courses-table tbody tr:hover{background:var(--surface)}
.table-note{margin:28px 0 0;font-size:16px;color:var(--muted);max-width:40ch}

/* ---------- gallery ---------- */
.gallery{background:var(--surface);padding:100px var(--margin) 46px}
.gallery-inner{
  width:100%;max-width:1180px;margin:0 auto;
  display:grid;grid-template-columns:repeat(12,1fr);gap:18px 18px;align-items:start;
}
.gallery h2{
  grid-column:4/10;grid-row:1;margin:0 0 10px;text-align:center;font-weight:400;
  font-size:40px;line-height:1.2;
}
.gallery-lead{
  grid-column:4/10;grid-row:2;margin:0 0 6px;text-align:center;font-size:18px;color:var(--muted);
}
.text-link{
  grid-column:5/9;grid-row:3;margin:0 0 34px;text-align:center;
  font-size:14px;color:var(--accent);text-decoration:underline;text-underline-offset:4px;
}
.g{position:static;width:auto;margin:0;overflow:hidden}
.g img{width:100%;height:100%;object-fit:cover}
.g--1{grid-column:1/4;grid-row:4;aspect-ratio:3/4}
.g--2{grid-column:4/9;grid-row:4;aspect-ratio:16/9}
.g--3{grid-column:9/13;grid-row:4;aspect-ratio:4/5}
.g--4{grid-column:2/5;grid-row:5;aspect-ratio:5/4}
.g--5{grid-column:5/9;grid-row:5;aspect-ratio:1/1}
.g--6{grid-column:9/12;grid-row:5;aspect-ratio:3/4}
.gallery-note{grid-column:4/10;grid-row:6;margin:8px 0 0;text-align:center;font-size:18px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{padding:86px var(--margin) 110px}
.faq h2{
  margin:0;font-weight:400;font-size:clamp(40px,5.2vw,64px);line-height:1.08;letter-spacing:-.01em;
}
.faq-intro{max-width:30ch;margin:32px 0 0;font-size:18px;line-height:1.7;color:var(--muted)}
.faq-list{margin:70px 0 0 33%}
.faq details{padding:22px 0;font-size:24px;transition:background .25s}
.faq details[open]{background:var(--surface);padding:24px 24px 26px;margin-left:-24px;margin-right:-24px}
.faq summary{cursor:pointer;list-style:none;position:relative;padding-right:36px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"›";position:absolute;right:0;top:-2px;font-size:26px;color:var(--muted);
  transition:transform .25s;
}
.faq details[open] summary::after{transform:rotate(90deg)}
.faq details p{margin:18px 0 0;font-size:18px;line-height:1.75;color:var(--ink);max-width:48ch}

/* ---------- visit ---------- */
.visit{
  background:var(--surface);
  display:grid;grid-template-columns:repeat(12,1fr);gap:0 20px;
  padding:80px var(--margin) 90px;align-items:start;
}
.visit-sentence{
  grid-column:1/6;margin:0;font-size:24px;line-height:1.45;
}
.visit-photo{grid-column:8/10;margin:0;width:100%;aspect-ratio:1/1;overflow:hidden}
.visit-photo img{width:100%;height:100%;object-fit:cover}
.visit-links{grid-column:10/13;margin:0}
.visit-q{margin:0 0 16px;font-size:18px;font-weight:600}
.visit-links .btn{margin-bottom:22px}
.visit-small{margin:0 0 16px;font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- footer ---------- */
.site-foot{
  padding:64px var(--margin) 48px;background:var(--ink);color:#d9d4c8;
}
.foot-name{margin:0 0 6px;font-size:clamp(40px,6vw,64px);line-height:1;letter-spacing:.04em}
.foot-meta{margin:0 0 40px;font-size:14px;color:#a29c90}
.foot-credits{margin:0;max-width:70ch;font-size:16px;line-height:1.8;color:#b3ada0}

/* ---------- dialog ---------- */
.dialog{border:0;padding:0;background:transparent;max-width:min(440px,92vw)}
.dialog::backdrop{background:rgba(28,27,24,.55)}
.dialog-inner{background:var(--bg);color:var(--ink);padding:34px 30px 28px}
.dialog h2{margin:0 0 22px;font-weight:400;font-size:30px}
.dialog p{margin:0 0 8px;font-size:14px;color:var(--muted)}
.wechat-id{
  margin:0 0 18px!important;font-size:26px!important;color:var(--ink)!important;letter-spacing:.04em;
}
.btn--copy{width:100%;margin-bottom:14px}
.dialog-note{font-size:14px!important;line-height:1.7}
.dialog-close{
  margin-top:18px;background:none;border:0;padding:6px 0;font-size:14px;
  color:var(--muted);cursor:pointer;text-decoration:underline;text-underline-offset:4px;
}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:900px){
  :root{--margin:5vw;--head:clamp(36px,6vw,52px);--display:clamp(46px,9vw,80px)}
  .site-head{padding:20px var(--margin);gap:16px}
  .site-nav{
    display:none;position:absolute;left:var(--margin);right:var(--margin);top:64px;
    background:var(--bg);padding:18px 0;flex-direction:column;gap:16px;
    border-bottom:0;
  }
  .site-nav.is-open{display:flex}
  .nav-toggle{display:block}
  .btn--head{padding:8px 12px}
  .hero{padding-bottom:26px}
  .hero-grid{padding-top:92px;display:block}
  .hero-copy{display:block}
  .hero-title{font-size:clamp(46px,12vw,74px);margin:0 0 6px}
  .hero-sub{font-size:28px;margin-bottom:14px}
  .hero-lead{max-width:32ch;font-size:18px;margin:0 0 24px;color:var(--ink)}
  .hero-photo--large{width:82%;height:52vh;margin:0 0 0 auto}
  .hero-photo--small{width:32%;margin:-58px 0 26px;position:relative;z-index:2}
  .hero-note{text-align:left;margin:0}
  .about{display:block;padding:110px var(--margin) 100px}
  .about-head h2{position:static;font-size:clamp(52px,12vw,84px);margin-bottom:54px}
  .about-body{gap:56px}
  .about-photo--a{width:72%}
  .about-photo--b{display:block;width:64%;aspect-ratio:16/10;overflow:hidden;align-self:flex-end}
  .courses{display:block;padding:100px var(--margin) 110px}
  .courses-head h2{margin-bottom:40px}
  .courses-widget{margin-bottom:56px}
  .courses-photo{width:62%;margin-left:auto}
  .courses-table{font-size:15px}
  .courses-table tbody th{width:26%}
  .gallery{display:block;padding:80px var(--margin) 50px}
  .gallery-inner{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .gallery h2,.gallery-lead,.text-link{grid-column:1/3;text-align:center;margin-bottom:8px}
  .gallery h2{font-size:40px}
  .text-link{margin-bottom:26px}
  .g{grid-column:auto;grid-row:auto;width:auto}
  .g--1,.g--3,.g--5{aspect-ratio:3/4}
  .g--2,.g--4,.g--6{aspect-ratio:4/3;margin-top:34px}
  .gallery-note{grid-column:1/3;margin-top:14px;font-size:18px}
  .faq{padding:70px var(--margin) 80px}
  .faq h2{font-size:40px;margin-bottom:28px}
  .faq-intro{margin:0 0 32px;font-size:18px}
  .faq-list{margin:0}
  .faq details{font-size:19px;padding:18px 0}
  .faq details[open]{margin:0 -5vw;padding:20px 5vw}
  .faq details p{font-size:16px}
  .visit{display:block;padding:70px var(--margin) 80px}
  .visit-sentence{font-size:clamp(24px,7.4vw,34px);margin-bottom:40px}
  .visit-photo{width:96px;margin-bottom:24px}
  .visit-links{margin-top:0}
  .site-foot{padding:60px var(--margin) 44px}
}

@media(max-width:520px){
  .hero-photo--large{width:88%;height:46vh}
  .hero-photo--small{width:34%;margin-top:-52px}
  .strings{gap:6px;height:112px}
  .string{width:26px;height:112px}
  .string::before{height:98px}
  .courses-table thead{display:none}
  .courses-table tbody th,.courses-table td{display:block;width:auto;padding:0}
  .courses-table tbody tr{display:grid;grid-template-columns:1fr auto;gap:4px 16px;padding:18px 0}
  .courses-table tbody th{grid-column:1/3;font-size:18px}
  .courses-table td:nth-child(2){grid-column:1/2;width:auto;padding:0}
  .courses-table td:last-child{grid-column:2/3;text-align:right}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
  .hero-photo--large img{animation:none}
}