/* Dongyao English Site — Editorial Earth (docs/143) */
:root{
  --bg:#F7F3EC; --ink:#2B2118; --ink-60:rgba(43,33,24,.62); --ink-40:rgba(43,33,24,.42);
  --sage:#7A8B6F; --sage-deep:#6B7A60; --slate:#243140; --orange:#E8622C;
  --card:#E8DFD1; --line:#D8CFC0; --cream:#FDFBF7;
  --serif:'Playfair Display',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,'Helvetica Neue',Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:var(--sage-deep);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1200px;margin:0 auto;padding:0 5vw}

/* labels & headings */
.label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-60);font-weight:500}
.label--sage{color:var(--sage-deep)}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.15;color:var(--ink)}
h1{font-size:clamp(38px,4.6vw,62px);letter-spacing:-.01em}
h2{font-size:clamp(28px,3vw,40px)}
h3{font-size:clamp(20px,2vw,25px)}
.lede{font-size:clamp(17px,1.5vw,19.5px);color:var(--ink-60);max-width:56ch}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:64px}
.wordmark{font-family:var(--sans);font-weight:600;letter-spacing:.22em;font-size:15px;color:var(--ink);text-decoration:none}
.wordmark small{display:block;font-size:9px;letter-spacing:.3em;color:var(--ink-40);font-weight:500}
.nav__menu{display:flex;gap:26px;list-style:none;align-items:center}
.nav__menu a{font-size:13.5px;color:var(--ink-60);text-decoration:none;letter-spacing:.02em}
.nav__menu a:hover,.nav__menu a[aria-current]{color:var(--ink)}
.nav__menu a[aria-current]{border-bottom:1px solid var(--ink);padding-bottom:2px}
.btn{display:inline-block;background:var(--sage-deep);color:#fff;font-size:13.5px;letter-spacing:.04em;padding:10px 22px;border-radius:2px;text-decoration:none;border:none;cursor:pointer;font-family:var(--sans)}
.btn:hover{background:var(--sage);text-decoration:none}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--ink-40)}
.btn--ghost:hover{border-color:var(--ink);background:transparent}
.btn--lg{padding:14px 30px;font-size:14.5px}
.nav__toggle{display:none}

/* hero */
.hero{padding:72px 0 0}
.hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:end}
.hero__text .label{display:block;margin-bottom:18px}
.hero__text .lede{margin:22px 0 30px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.hero__img{margin-top:48px}
.hero__img img{width:100%;height:clamp(280px,38vw,480px);object-fit:cover}
.hero--side .hero__img{margin-top:0}
.hero--side .hero__img img{height:clamp(240px,26vw,340px)}

/* sections */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--card{background:var(--card)}
.section--cream{background:var(--cream)}
.section--slate{background:var(--slate);color:#EDE7DB}
.section--slate h2,.section--slate h3{color:#F5F0E6}
.section--slate .lede,.section--slate p{color:rgba(237,231,219,.75)}
.section__head{max-width:720px;margin-bottom:48px}
.section__head .label{display:block;margin-bottom:14px}
.rule{border:none;border-top:1px solid var(--line)}

/* problem list (home) */
.points{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.point{padding:26px 0;border-top:1px solid var(--line)}
.point strong{display:block;font-family:var(--serif);font-size:19px;font-weight:500;margin-bottom:8px}
.point p{color:var(--ink-60);font-size:15.5px}

/* feature/advantage/benefit rows */
.rows{display:grid;gap:0}
.row{display:grid;grid-template-columns:1fr 2fr;gap:40px;padding:30px 0;border-top:1px solid var(--line)}
.row:last-child{border-bottom:1px solid var(--line)}
.row h3{font-size:21px}
.row p{color:var(--ink-60)}

/* product grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.pcard{border-top:1px solid var(--line);padding-top:0}
.pcard img{width:100%;aspect-ratio:4/3;object-fit:cover;margin-bottom:18px}
.pcard .label{display:block;margin-bottom:8px}
.pcard h3{margin-bottom:8px}
.pcard p{font-size:15px;color:var(--ink-60);margin-bottom:12px}
.tlink{font-size:14px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--sage)}
.tlink:hover{color:var(--sage-deep)}

/* editorial split */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.split--rev{grid-template-columns:7fr 5fr}
.split img{width:100%;object-fit:cover}
.split h2{margin:14px 0 18px}
.split p{color:var(--ink-60);margin-bottom:14px}

/* image band */
.band{position:relative}
.band img{width:100%;height:clamp(240px,30vw,380px);object-fit:cover}
.band figcaption{position:absolute;right:6vw;bottom:32px;max-width:420px;font-family:var(--serif);font-size:clamp(18px,1.8vw,24px);color:#fff;text-shadow:0 1px 12px rgba(0,0,0,.45);font-style:italic}

/* corridor panel */
.corridor{background:var(--slate);padding:64px 0}
.corridor img{width:100%}

/* process */
.steps{counter-reset:step}
.step{display:grid;grid-template-columns:64px 1fr 2fr;gap:32px;padding:34px 0;border-top:1px solid var(--line)}
.step__num{font-family:var(--serif);font-size:34px;color:var(--sage-deep)}
.step h3{margin-bottom:10px}
.step dl{display:grid;gap:10px}
.step dt{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-40)}
.step dd{color:var(--ink-60);font-size:15.5px}

/* services */
.svc{padding:40px 0;border-top:1px solid var(--line)}
.svc:last-child{border-bottom:1px solid var(--line)}
.svc h3{margin-bottom:14px}
.svc p{max-width:72ch;color:var(--ink-60);margin-bottom:8px}
.svc p strong{color:var(--ink);font-weight:600}

/* credentials */
.creds{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.cred{padding:22px 0;border-top:1px solid rgba(237,231,219,.25);font-size:15.5px}

/* faq */
.faq{padding:28px 0;border-top:1px solid var(--line)}
.faq h3{font-size:19px;margin-bottom:10px}
.faq p{color:var(--ink-60);max-width:74ch}

/* contact form */
.form{display:grid;gap:18px;max-width:640px}
.form label{display:grid;gap:6px;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-60)}
.form input,.form textarea,.form select{font-family:var(--sans);font-size:15.5px;color:var(--ink);background:var(--cream);border:1px solid var(--line);padding:12px 14px;border-radius:2px;text-transform:none;letter-spacing:normal}
.form textarea{min-height:130px;resize:vertical}
.form input:focus,.form textarea:focus{outline:1px solid var(--sage)}
.formnote{font-size:13.5px;color:var(--ink-40);max-width:52ch}

/* CTA */
.cta{text-align:left;padding:88px 0}
.cta .lede{margin:18px 0 30px}

/* footer */
.footer{border-top:1px solid var(--line);padding:56px 0 32px;font-size:13.5px;color:var(--ink-60)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;margin-bottom:40px}
.footer h4{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-40);margin-bottom:14px;font-weight:600}
.footer ul{list-style:none;display:grid;gap:8px}
.footer a{color:var(--ink-60)}
.footer__base{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--ink-40)}

/* responsive */
@media (max-width:900px){
  .nav__menu{display:none}
  .nav__toggle{display:block;background:none;border:1px solid var(--line);font-size:13px;padding:8px 14px;color:var(--ink);border-radius:2px;cursor:pointer}
  .nav__menu--open{display:flex;position:absolute;top:64px;left:0;right:0;background:var(--bg);flex-direction:column;padding:20px 5vw 28px;border-bottom:1px solid var(--line);gap:16px}
  .hero__grid,.split,.split--rev{grid-template-columns:1fr;gap:32px}
  .grid3{grid-template-columns:1fr 1fr}
  .points,.creds{grid-template-columns:1fr}
  .row{grid-template-columns:1fr;gap:10px}
  .step{grid-template-columns:48px 1fr;gap:20px}
  .step dl{grid-column:2}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){.grid3{grid-template-columns:1fr}.footer__grid{grid-template-columns:1fr}}