:root {
  --paper: #f6f1e7;
  --card: #fffdf8;
  --ink: #1d2a26;
  --muted: #5d6a64;
  --green: #23493f;
  --green-deep: #183730;
  --accent: #c8742c;
  --line: #e3dac8;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --w: 68rem;
}
.l-zh-cn { --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", STSong, Georgia, serif;
           --sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif; }
.l-zh-tw { --serif: "Songti TC", "Noto Serif CJK TC", "Source Han Serif TC", PMingLiU, Georgia, serif;
           --sans: -apple-system, "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", sans-serif; }
.l-ko    { --serif: AppleMyungjo, "Nanum Myeongjo", "Noto Serif KR", Batang, Georgia, serif;
           --sans: -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 1.0625rem/1.7 var(--sans);
}
.l-ko, .l-ko h1, .l-ko h2 { word-break: keep-all; }
h1, h2, h3, p, ol, dl, dd { margin: 0; }
ol { padding: 0; list-style: none; }
a { color: inherit; }

section, .top, footer { padding-inline: max(clamp(1.25rem, 5vw, 3rem), calc((100% - var(--w)) / 2)); }
section { padding-block: clamp(3rem, 8vw, 5.5rem); }

h2 {
  font: 600 clamp(1.5rem, 3.2vw, 2rem)/1.3 var(--serif);
  color: var(--green); margin-bottom: 2rem;
}
h2::before {
  content: ""; display: block; width: 2.5rem; height: 3px;
  background: var(--accent); margin-bottom: 1rem;
}

/* header */
.top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1.1rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  font: 700 1.15rem/1 Georgia, serif; text-decoration: none; color: var(--green);
  letter-spacing: .01em; white-space: nowrap;
}
.brand em { font-weight: 400; font-style: italic; }
.mark {
  width: 1.05rem; height: 1.05rem; border-radius: 50% 50% 50% 0;
  background: var(--accent); transform: rotate(-45deg);
}
.langs { display: flex; gap: .15rem; font-size: .9rem; }
.langs a {
  min-width: 2.25rem; padding: .3rem .45rem; text-align: center;
  text-decoration: none; color: var(--muted); border-radius: 999px;
}
.langs a:hover { color: var(--ink); background: #ece4d3; }
.langs a[aria-current] { background: var(--green); color: #fff; }

/* hero */
.hero { padding-block: clamp(2.5rem, 9vw, 6.5rem) clamp(3rem, 9vw, 6rem); }
.eyebrow {
  font-size: .8rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 1.25rem;
}
h1 {
  font: 600 clamp(2rem, 6vw, 3.6rem)/1.18 var(--serif);
  letter-spacing: -.01em; max-width: 20em;
}
.l-zh-cn h1, .l-zh-tw h1, .l-ko h1 { line-height: 1.35; letter-spacing: 0; }
h1 span { display: block; }
h1 .soft { color: var(--green); font-style: italic; font-weight: 400; margin-top: .35em; }
.l-zh-cn h1 .soft, .l-zh-tw h1 .soft, .l-ko h1 .soft { font-style: normal; }
.sub { max-width: 38rem; margin-top: 1.75rem; font-size: 1.15rem; color: var(--muted); }
.hero .btn { margin-top: 2.25rem; }

.btn {
  display: inline-block; padding: .85rem 1.6rem; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600;
  text-decoration: none; border: 2px solid var(--accent);
  transition: transform .15s, background .15s;
}
.btn:hover { background: #b26424; border-color: #b26424; transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--green); border-color: var(--green); }
.btn.ghost:hover { background: var(--green); color: #fff; }
.btn:focus-visible, a:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }

/* familiar */
.familiar { border-top: 1px solid var(--line); }
.cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 26rem), 1fr)); }
.cards li {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 1.6rem 1.5rem 1.7rem;
}
.num { font: 400 .95rem/1 Georgia, serif; color: var(--accent); letter-spacing: .08em; }
.cards h3 { font: 600 1.2rem/1.4 var(--serif); margin: .7rem 0 .55rem; }
.cards p { color: var(--muted); font-size: 1rem; }

/* case */
.case { background: var(--green); color: #f3ede0; }
.case h2 { color: #f3ede0; }
.case .inner > p {
  font: 400 clamp(1.15rem, 2.4vw, 1.45rem)/1.75 var(--serif); max-width: 44rem;
}

/* how */
.steps { counter-reset: s; display: grid; gap: 1.5rem; max-width: 44rem; }
.steps li {
  counter-increment: s; display: grid; grid-template-columns: 3rem 1fr; align-items: start;
}
.steps li::before {
  content: counter(s); font: 600 1.6rem/1.3 Georgia, serif; color: var(--accent);
}
.steps strong { color: var(--green); }

/* sessions */
.sessions { background: #efe8d9; }
.plans { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); }
.plan {
  display: flex; flex-direction: column; gap: .6rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 2rem 1.75rem;
}
.plan.featured { border: 2px solid var(--green); }
.plan h3 { font: 600 1.3rem/1.35 var(--serif); color: var(--green); }
.price { font: 600 2.4rem/1.1 Georgia, serif; }
.meta { font-size: .9rem; color: var(--accent); font-weight: 600; letter-spacing: .02em; }
.plan p:not(.price):not(.meta) { color: var(--muted); flex: 1; }
.plan .btn { align-self: flex-start; margin-top: .9rem; }
.note { margin-top: 1.25rem; color: var(--muted); font-size: 1rem; }
.note + .note { margin-top: .35rem; }
.note strong { color: var(--ink); }

/* about, faq */
.about p { max-width: 44rem; }
.about p + p { margin-top: 1.25rem; }
.link { color: var(--green); font-weight: 600; text-underline-offset: .25em; }
.link:hover { color: var(--accent); }
.faq { border-top: 1px solid var(--line); }
.faq dl { max-width: 44rem; }
.faq dl > div { padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.faq dt { font-weight: 600; }
.faq dd { color: var(--muted); margin-top: .25rem; }

/* closing */
.closing { background: var(--green-deep); color: #f3ede0; text-align: center; }
.big {
  font: 400 clamp(1.5rem, 4vw, 2.4rem)/1.4 var(--serif);
  max-width: 36rem; margin: 0 auto 2rem;
}
.closing p:last-child { margin-top: 1.5rem; }
.closing .link { color: #f3ede0; font-weight: 400; }

footer { padding-block: 1.5rem; background: var(--green-deep); color: #9fb3ab; font-size: .85rem; text-align: center; border-top: 1px solid #2c4d44; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }