:root{
  --ink:#2f2b29;
  --rose:#cf6465;
  --rose-dark:#a94f52;
  --mint:#d9eee7;
  --mint-dark:#397266;
  --cream:#fff8ed;
  --gold:#e3b14d;
  --white:#fff;
  --shadow:0 18px 45px rgba(72,53,47,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Tahoma,"Noto Sans Thai",sans-serif;
  color:var(--ink);
  background:linear-gradient(180deg,#fffaf3,#f2ebe2);
}
a{text-decoration:none;color:inherit}
button{font:inherit}
.topline{
  background:#8e4b4d;
  color:#fff;
  text-align:center;
  padding:7px 12px;
  font-size:.92rem;
}
.nav{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #eadbd1;
}
.nav-inner{
  max-width:1240px;
  min-height:72px;
  margin:auto;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  padding:0 20px;
}
.brand{
  color:var(--rose-dark);
  font-weight:900;
  font-size:1.15rem;
  white-space:nowrap;
}
.links{display:flex;align-items:center;gap:4px}
.links a{
  padding:10px 12px;
  border-radius:999px;
  font-weight:800;
}
.links a:hover,.links a.active{
  background:var(--rose);
  color:#fff;
}
.menu-btn{
  display:none;
  border:0;
  background:var(--rose);
  color:#fff;
  border-radius:13px;
  padding:10px 15px;
  font-weight:800;
}
.wrap{max-width:1240px;margin:auto;padding:32px 20px}
.hero{
  position:relative;
  min-height:690px;
  display:flex;
  align-items:center;
  overflow:hidden;
  border-radius:0 0 48px 48px;
  background:#dceee8;
  box-shadow:var(--shadow);
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(255,251,244,.98) 0%,rgba(255,251,244,.88) 33%,rgba(255,251,244,.40) 52%,rgba(255,251,244,0) 72%);
}
.hero-copy{
  position:relative;
  z-index:2;
  width:min(610px,55%);
  padding:80px 0 70px 55px;
}
.kicker{
  display:inline-block;
  padding:8px 15px;
  border-radius:999px;
  background:#f4c9b6;
  color:#7c4043;
  font-weight:900;
}
.hero h1{
  color:#a64e51;
  font-size:clamp(3.4rem,7vw,6.3rem);
  line-height:1.02;
  margin:24px 0 12px;
}
.hero h2{
  color:#47796e;
  margin:0 0 18px;
  font-size:clamp(1.25rem,2vw,1.85rem);
}
.hero p{line-height:1.8;font-size:1.06rem;max-width:560px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:50px;
  padding:0 22px;
  border-radius:15px;
  margin:10px 8px 0 0;
  border:2px solid var(--rose);
  color:var(--rose-dark);
  background:#fff;
  font-weight:900;
}
.btn.primary{background:var(--rose);color:#fff}
.head h1{
  color:var(--rose-dark);
  font-size:clamp(2.4rem,4.8vw,4.2rem);
  margin:20px 0 8px;
}
.sub{line-height:1.75;color:#776c68}
.section{padding:34px 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.card{
  background:#fff;
  border:1px solid #eadfd6;
  border-radius:24px;
  padding:22px;
  box-shadow:var(--shadow);
  line-height:1.75;
}
.card h3{color:var(--rose-dark);margin-top:0}
.photo{
  width:100%;
  display:block;
  border-radius:22px;
  background:#fff;
  padding:7px;
  box-shadow:var(--shadow);
}
.letter{
  margin:15px 0;
  border:1px solid #eadbd0;
  border-radius:22px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow);
}
.letter summary{
  list-style:none;
  cursor:pointer;
  padding:16px 18px;
  display:grid;
  grid-template-columns:45px 1fr 30px;
  align-items:center;
  gap:12px;
  font-weight:900;
}
.letter summary::-webkit-details-marker{display:none}
.letter-no{
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:var(--rose);
  color:#fff;
}
.arrow{font-size:1.5rem;color:var(--rose-dark)}
.letter[open] .arrow{transform:rotate(180deg)}
.letter-body{
  display:grid;
  grid-template-columns:minmax(300px,430px) 1fr;
  gap:22px;
  padding:20px;
  border-top:1px dashed #e7cfc1;
}
.letter-image{
  width:100%;
  border-radius:18px;
  box-shadow:0 12px 28px rgba(72,53,47,.14);
  cursor:zoom-in;
}
.letter-text{line-height:1.85}
.letter-text strong{color:var(--mint-dark)}
.character{
  background:linear-gradient(145deg,#fff,#fff5f1);
  border-radius:24px;
  padding:22px;
  box-shadow:var(--shadow);
  line-height:1.75;
}
.character h3{color:var(--rose-dark)}
.tag{
  display:inline-block;
  background:var(--mint);
  color:var(--mint-dark);
  padding:6px 11px;
  border-radius:999px;
  font-weight:800;
}
.idiom{
  background:#fff;
  border-left:7px solid var(--gold);
  border-radius:0 18px 18px 0;
  padding:17px 20px;
  box-shadow:var(--shadow);
  line-height:1.75;
}
.idiom b{color:var(--rose-dark)}
.qcard{
  background:#fff;
  border-radius:22px;
  padding:22px;
  margin:17px 0;
  box-shadow:var(--shadow);
}
.qnum{color:var(--rose-dark);font-weight:900}
.option{
  display:grid;
  grid-template-columns:24px 30px 1fr;
  gap:8px;
  align-items:start;
  border:2px solid #e8ded8;
  border-radius:14px;
  padding:12px;
  margin:9px 0;
  cursor:pointer;
}
.option:hover{border-color:var(--rose);background:#fff7f5}
.option input{margin-top:4px}
.progress{
  height:14px;
  background:#eadfd9;
  border-radius:999px;
  overflow:hidden;
}
.bar{
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--rose),var(--gold));
}
.result{
  display:none;
  background:#fff;
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
  margin-top:20px;
}
.result.show{display:block}
.review{padding:13px;border-radius:13px;margin:9px 0}
.ok{background:#e5f3eb}
.bad{background:#fff0ed}
.lightbox{
  position:fixed;
  inset:0;
  z-index:200;
  display:none;
  align-items:center;
  justify-content:center;
  background:rgba(25,20,19,.88);
  padding:30px;
}
.lightbox.show{display:flex}
.lightbox img{
  max-width:94vw;
  max-height:88vh;
  object-fit:contain;
  border-radius:12px;
}
.lightbox-close{
  position:absolute;
  top:18px;
  right:22px;
  border:0;
  background:#fff;
  width:44px;
  height:44px;
  border-radius:50%;
  font-size:1.6rem;
  cursor:pointer;
}
.footer{
  margin-top:50px;
  background:#8e4b4d;
  color:#fff;
  text-align:center;
  padding:28px 20px;
}
@media(max-width:950px){
  .links{display:none}
  .menu-btn{display:block}
  .links.open{
    display:flex;
    position:absolute;
    top:72px;
    left:12px;
    right:12px;
    flex-direction:column;
    align-items:stretch;
    background:#fff;
    padding:12px;
    box-shadow:var(--shadow);
  }
  .hero-copy{width:64%;padding-left:30px}
  .grid{grid-template-columns:repeat(2,1fr)}
  .letter-body{grid-template-columns:1fr}
}
@media(max-width:650px){
  .hero{min-height:820px;align-items:flex-start}
  .hero-bg{object-position:58% center}
  .hero-overlay{
    background:linear-gradient(180deg,rgba(255,251,244,.98) 0%,rgba(255,251,244,.92) 44%,rgba(255,251,244,.35) 64%,rgba(255,251,244,0) 82%);
  }
  .hero-copy{width:100%;padding:95px 18px 40px}
  .hero h1{font-size:3rem}
  .hero h2{font-size:1.2rem}
  .hero p{font-size:.98rem}
  .grid,.two{grid-template-columns:1fr}
  .wrap{padding-left:14px;padding-right:14px}
}