:root{
  --paper:#FFFBF0; --paper2:#F4EDDE; --card:#FFFDF7;
  --ink:#14342B; --ink-soft:#2E4B42; --muted:#5C7269;
  --accent:#C24E0C; --accent-hover:#A63F00; --accent-bright:#E86A1C;
  --accent-soft:#FDEBD9; --marker:#FFD9B5;
  --green:#1D5C4D; --green-deep:#12372A;
  --line:#E7DCC8; --radius:24px; --radius-s:16px;
  --shadow:0 12px 32px rgba(20,52,43,.08);
  --ease:cubic-bezier(.23,1,.32,1);
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:Manrope,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:Nunito,Manrope,sans-serif;line-height:1.12;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:900}
h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800}
h3{font-size:1.15rem;font-weight:800}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
section[id]{scroll-margin-top:100px}
.container--narrow{max-width:820px}
.section{padding:64px 0}
.section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--green{background:var(--green-deep);color:#FFFBF0}
.section--green .fineprint,.section--green figcaption{color:#D9E7DF}
.section--cta{background:linear-gradient(180deg,#FFFDF7,var(--paper2));border-top:1px solid var(--line)}
.section__head{max-width:720px;margin-bottom:28px}
.section__head p{color:var(--muted);margin:0}
.section--green .section__head p{color:#D9E7DF}

/* demo bar */
.demo-bar{background:var(--green-deep);color:#FFEFD9;font-size:.85rem;padding:8px 16px;text-align:center}
.demo-bar__dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent-bright);margin-right:8px;vertical-align:middle}

/* header */
.header{position:sticky;top:0;z-index:50;background:rgba(255,251,240,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header__inner{display:flex;align-items:center;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);margin-right:auto}
.logo__mark{width:40px;height:40px;border-radius:12px;background:var(--green-deep);color:#FFFBF0;display:grid;place-items:center;font-size:24px;font-weight:900}
.logo__text{font-family:Nunito;font-weight:900;font-size:1.1rem;line-height:1}
.logo__text small{display:block;font-family:Manrope;font-weight:600;font-size:.72rem;color:var(--muted)}
.nav{display:flex;gap:18px;align-items:center}
.nav a{color:var(--ink-soft);text-decoration:none;font-weight:600;font-size:.95rem;padding:10px 2px}
.nav a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.nav__cta{border:2px solid var(--ink);border-radius:999px;padding:8px 16px!important;color:var(--ink)!important}
.header__actions{display:flex;align-items:center;gap:10px}
.burger{display:none;width:44px;height:44px;background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer}
.burger span{display:block;height:2px;background:var(--ink);margin:6px 10px;border-radius:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:16px;
  font-weight:800;text-decoration:none;cursor:pointer;border:2px solid transparent;
  transition:transform 150ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease);white-space:nowrap}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(194,78,12,.28)}
.btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn--primary:active{transform:scale(.97)}
.btn--ghost{background:#fff;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--ghost:active{transform:scale(.97)}
.btn--secondary{background:#fff;border-color:var(--line);color:var(--ink)}
.btn--secondary:hover{border-color:var(--ink)}
.btn--secondary:active{transform:scale(.97)}
.btn--sm{min-height:44px;padding:8px 16px;font-size:.9rem}
.btn--block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent-bright);outline-offset:2px}

/* hero */
.hero{padding:40px 0 0;overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 14px;font-size:.85rem;font-weight:700;color:var(--ink-soft)}
.pill span{color:var(--accent-bright);font-size:.7rem}
.hero__sub{font-size:1.1rem;color:var(--ink-soft);max-width:34rem}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
.hero__points{list-style:none;padding:0;margin:0 0 12px;display:grid;gap:6px;color:var(--ink-soft)}
.hero__points li::before{content:"✓ ";color:var(--accent);font-weight:900}
.hero__note{font-size:.85rem;color:var(--muted)}
.u-pencil{background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 24' preserveAspectRatio='none'%3E%3Cpath d='M4 16 C 60 8, 150 6, 296 12' fill='none' stroke='%23E86A1C' stroke-width='7' stroke-linecap='round'/%3E%3C/svg%3E") bottom/0% .45em no-repeat;transition:background-size 700ms var(--ease);padding-bottom:.08em}
.u-pencil.is-drawn{background-size:100% .45em}

/* hero visual */
.hero__visual{position:relative;min-height:420px}
.photo-card{position:relative;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:10px 10px 34px;transform:rotate(1.5deg);margin:0}
.photo-card img{border-radius:14px;filter:grayscale(1) sepia(.35) contrast(.92);opacity:.55;transform:translateY(8px);transition:filter 1.2s var(--ease),opacity 1.2s var(--ease),transform 1.2s var(--ease)}
.photo-card.is-revealed img{filter:none;opacity:1;transform:none}
.photo-card figcaption{font-size:.75rem;color:var(--muted);padding:8px 4px 0}
.tape{position:absolute;width:92px;height:26px;background:rgba(255,217,181,.85);border:1px solid rgba(194,78,12,.25);top:-12px}
.tape--tl{left:24px;transform:rotate(-8deg)}
.tape--tr{right:24px;transform:rotate(7deg)}
.hanzi-card{position:absolute;left:-30px;bottom:-24px;background:#FFFDF7;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);padding:14px 16px;display:flex;gap:14px;align-items:center;max-width:300px}
.hanzi{width:110px;height:110px;flex:none}
.hanzi .stroke{stroke-dasharray:220;stroke-dashoffset:220}
.hanzi-card.is-drawn .stroke{animation:draw 500ms var(--ease) forwards}
.hanzi-card.is-drawn .stroke:nth-child(1){animation-delay:.05s}.hanzi-card.is-drawn .stroke:nth-child(2){animation-delay:.2s}
.hanzi-card.is-drawn .stroke:nth-child(3){animation-delay:.35s}.hanzi-card.is-drawn .stroke:nth-child(4){animation-delay:.5s}
.hanzi-card.is-drawn .stroke:nth-child(5){animation-delay:.65s}.hanzi-card.is-drawn .stroke:nth-child(6){animation-delay:.8s}
.hanzi-card.is-drawn .stroke:nth-child(7){animation-delay:.95s}.hanzi-card.is-drawn .stroke:nth-child(8){animation-delay:1.1s}
@keyframes draw{to{stroke-dashoffset:0}}
.hanzi-card__meta{font-size:.85rem;color:var(--ink-soft);margin:0}
.hanzi-card__meta strong{font-size:1rem;color:var(--ink)}
.hand-note{position:absolute;top:-30px;left:6px;font-family:Caveat,cursive;font-size:1.3rem;color:var(--accent);transform:rotate(-4deg);margin:0}
.chip{position:absolute;background:var(--green-deep);color:#FFFBF0;border-radius:999px;padding:8px 14px;font-size:.85rem;font-weight:700;box-shadow:var(--shadow)}
.chip--a{top:6%;right:2%}.chip--b{bottom:30%;right:-8px;background:#fff;color:var(--ink);border:1px solid var(--line)}

/* marquee (Magic-UI marquee adapted to CSS) */
.marquee{margin-top:44px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;overflow:hidden}
.marquee__track{display:flex;gap:32px;padding:12px 0;white-space:nowrap;width:max-content;animation:scroll 28s linear infinite;font-weight:700;color:var(--ink-soft)}
@keyframes scroll{to{transform:translateX(-50%)}}
.marquee:hover .marquee__track{animation-play-state:paused}

/* cards */
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{margin:.4em 0 .3em}
.card p{color:var(--ink-soft);margin:.3em 0}
.card__ex{font-size:.88rem;background:var(--paper);border:1px dashed var(--line);border-radius:12px;padding:8px 10px}
.demo-tag{display:inline-block;background:var(--accent-soft);color:#7A2E00;border-radius:999px;font-size:.72rem;font-weight:800;padding:4px 10px}
.program__format{font-size:.8rem;font-weight:800;color:var(--green);text-transform:uppercase;letter-spacing:.06em;margin:0}
.card--hot{border:2px solid var(--accent-bright)}
.fineprint{font-size:.88rem;color:var(--muted)}

/* steps */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.steps__n{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--green-deep);color:#fff;font-weight:900;margin-bottom:10px}

/* gallery */
.gallery{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}
.g-card{background:#0F2A22;border:1px solid rgba(255,255,255,.14);border-radius:20px;overflow:hidden;margin:0}
.g-card img{width:100%;height:220px;object-fit:cover}
.g-card--tall img{height:300px}
.g-card figcaption{padding:10px 14px;font-size:.8rem}
.g-card--hanzi{padding:20px;display:grid;gap:12px;align-content:center}
.g-hanzi{font-size:2rem;font-weight:900;color:#FFFBF0;margin:0}
.g-hanzi span{display:block;font-size:.85rem;font-weight:600;color:#D9E7DF}
.g-note{color:#D9E7DF;font-size:.85rem;margin:0}

/* placeholders */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.placeholder{background:var(--paper);border:2px dashed var(--line);border-radius:var(--radius);padding:22px}
.placeholder__badge{display:inline-block;background:var(--green-deep);color:#fff;border-radius:999px;font-size:.75rem;font-weight:800;padding:4px 12px}
.placeholder__list{color:var(--ink-soft)}
.placeholder blockquote{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:10px 0;color:var(--ink-soft)}
.placeholder cite{display:block;font-size:.8rem;color:var(--muted);font-style:normal}
code{background:#fff;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:.85em}

/* faq (accessible accordion, 21st accordion pattern adapted) */
.faq{display:grid;gap:12px}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.faq__q{width:100%;min-height:56px;display:flex;justify-content:space-between;align-items:center;gap:12px;
  background:none;border:0;padding:16px 18px;font-size:1rem;font-weight:800;color:var(--ink);cursor:pointer;text-align:left}
.faq__icon{flex:none;width:32px;height:32px;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center;font-size:1.2rem;transition:transform 300ms var(--ease)}
.faq__q[aria-expanded="true"] .faq__icon{transform:rotate(45deg)}
.faq__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 380ms var(--ease)}
.faq__a>div,.faq__a>p{overflow:hidden;margin:0}
.faq__a.open{grid-template-rows:1fr}
.faq__a p{padding:0 18px 18px;color:var(--ink-soft);margin:0}

/* form */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.field{margin-bottom:14px}
.field label{display:block;font-weight:800;margin-bottom:6px}
.opt{font-weight:400;color:var(--muted)}
.field input,.field textarea{width:100%;min-height:48px;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font:inherit;color:var(--ink);background:#FFFDF7}
.field input[aria-invalid="true"]{border-color:#B3261E;background:#FFF5F4}
.error{color:#8F1D16;font-size:.88rem;margin:6px 0 0}
.form__status{font-weight:700;background:var(--accent-soft);border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:none}
.form__status.show{display:block}
.lead-list{color:var(--ink-soft)}

/* footer */
.footer{background:var(--green-deep);color:#E9F2EC;padding:36px 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:20px}
.footer a{color:#FFEFD9;display:block;padding:6px 0}
.footer .fineprint{color:#C9D9D1}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);transition-delay:var(--d,0ms)}
.reveal.is-visible{opacity:1;transform:none}

.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:100}
.skip-link:focus{left:8px;top:8px}

@media (max-width:960px){
  .hero__grid{grid-template-columns:1fr}
  .hero__visual{min-height:380px}
  .hanzi-card{left:8px}
  .cards-4{grid-template-columns:1fr 1fr}
  .cards-3,.steps,.grid-2,.footer__grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px 16px;flex-direction:column;align-items:stretch}
  .nav.open{display:flex}
  .burger{display:block}
  .header__actions .btn--sm{display:none}
}
@media (max-width:560px){
  .cards-4,.gallery{grid-template-columns:1fr}
  .section{padding:48px 0}
  .hero__cta .btn{flex:1 1 100%}
  .chip--b{right:8px}
}
@media print{
  .reveal{opacity:1!important;transform:none!important}
  .photo-card img{filter:none!important;opacity:1!important;transform:none!important}
  .hanzi .stroke{stroke-dashoffset:0!important}
  .header,.demo-bar,.marquee,.hero__cta,.burger{display:none!important}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal{opacity:1!important;transform:none!important}
  .photo-card img{filter:none!important;opacity:1!important;transform:none!important}
  .hanzi .stroke{stroke-dashoffset:0!important}
  .marquee__track{animation:none!important}
  .u-pencil{background-size:100% .45em!important}
}