:root{
  --paper:#f6f2ea;
  --white:#fffdf8;
  --ink:#20242e;
  --muted:#66707f;
  --line:#d5d0c5;
  --strong:#20242e;
  --accent:#e2622f;
  --blue:#2667ff;
  --soft:#f0e7da;
  --max:1180px;
  --font:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --serif:Georgia,"Times New Roman","Songti SC",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);line-height:1.68;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(var(--max),calc(100% - 56px));margin:auto}

.topline{border-bottom:1px solid var(--ink);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.topline .wrap{display:flex;justify-content:space-between;gap:20px;padding-top:9px;padding-bottom:9px}
.nav{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:104px;border-bottom:1px solid var(--ink);gap:30px}
.brand{font-family:var(--serif);font-size:40px;font-weight:800;letter-spacing:-.08em;line-height:1}
.brand sup{font-size:12px;letter-spacing:0;margin-left:4px}
.nav-links{display:flex;gap:28px;font-size:13px;font-weight:700}
.nav-links a{padding:5px 0;border-bottom:2px solid transparent}
.nav-links a:hover,.nav-links a.active{border-color:var(--accent)}
.nav-note{text-align:right;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;padding:12px 18px;border:1px solid var(--ink);font-size:13px;font-weight:700;background:transparent;transition:.18s}
.btn:hover{background:var(--ink);color:var(--white);transform:translate(-2px,-2px);box-shadow:3px 3px 0 var(--accent)}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn-primary:hover{background:var(--ink);border-color:var(--ink)}

.hero{padding:58px 0 0}
.hero-kicker{display:flex;justify-content:space-between;font-size:11px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:26px}
.hero-kicker span:last-child{color:var(--accent)}
h1{font-family:var(--serif);font-size:clamp(56px,8vw,106px);line-height:.96;letter-spacing:-.06em;margin:0;max-width:1120px}
h1 em{font-style:italic;color:var(--accent)}
.hero-intro{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin:42px 0 36px;align-items:start}
.hero-intro p{font-size:18px;line-height:1.8;max-width:520px;margin:0}
.hero-intro .right{display:flex;justify-content:flex-end;align-items:center;gap:16px}
.hero-intro .note{font-size:10px;letter-spacing:.08em;color:var(--muted);max-width:170px}
.media{margin:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);position:relative;overflow:hidden;background:var(--soft)}
.media img{width:100%;height:auto}
.media figcaption{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-between;gap:20px;background:rgba(246,242,234,.95);border-top:1px solid var(--ink);padding:10px 14px;font-size:10px;letter-spacing:.1em;text-transform:uppercase}
.media-badge{position:absolute;right:22px;top:22px;background:#e9f0d8;border:1px solid var(--ink);border-radius:50%;width:96px;height:96px;display:grid;place-items:center;text-align:center;font-size:10px;letter-spacing:.08em;transform:rotate(9deg)}

.marquee{border-bottom:1px solid var(--ink);overflow:hidden;padding:14px 0;font-size:11px;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.marquee span{display:inline-block;padding:0 28px}
.marquee b{color:var(--accent);padding:0 12px}

.section{padding:86px 0;border-bottom:1px solid var(--ink)}
.section-head{display:grid;grid-template-columns:210px 1fr;gap:34px;margin-bottom:40px}
.label{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
h2{font-family:var(--serif);font-size:clamp(34px,4.4vw,56px);line-height:1.06;letter-spacing:-.05em;margin:0}
.section-head p{max-width:560px;margin:16px 0 0;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);border-left:1px solid var(--ink)}
.card{padding:28px;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);min-height:280px;background:var(--white)}
.card:nth-child(2){background:#e9f0d8}
.card .num{font-size:11px;letter-spacing:.1em;color:var(--accent)}
.card h3{font-family:var(--serif);font-size:26px;line-height:1.15;margin:62px 0 14px}
.card p{font-size:13px;color:var(--muted);margin:0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split h2{font-size:clamp(34px,4vw,50px)}
.split p{color:var(--muted)}
.list{list-style:none;margin:26px 0 0;padding:0;border-top:1px solid var(--ink)}
.list li{padding:13px 0;border-bottom:1px solid var(--line);font-size:13px;display:flex;justify-content:space-between;gap:20px}
.list li span{font-size:11px;letter-spacing:.1em;color:var(--blue)}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ink);border-left:1px solid var(--ink)}
.feature{padding:30px;background:var(--white);border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);display:grid;grid-template-columns:46px 1fr;gap:20px}
.feature i{font-size:28px;color:var(--accent);font-style:normal}
.feature h3{font-size:21px;margin:0 0 10px}
.feature p{font-size:13px;color:var(--muted);margin:0}

.page-hero{padding:62px 0 52px;border-bottom:1px solid var(--ink)}
.breadcrumb{font-size:10px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:34px}
.breadcrumb a{color:var(--blue)}
.page-title{font-family:var(--serif);font-size:clamp(50px,7vw,94px);line-height:.98;letter-spacing:-.06em;margin:0}
.page-lead{font-size:17px;max-width:660px;margin:22px 0 0;color:var(--muted)}
.table-wrap{overflow-x:auto;border:1px solid var(--ink);background:var(--white)}
table{width:100%;min-width:640px;border-collapse:collapse;text-align:left;font-size:13px}
th,td{padding:18px 20px;border-bottom:1px solid var(--ink)}
th{background:var(--ink);color:#fff;font-size:10px;letter-spacing:.1em;text-transform:uppercase}
tr:last-child td{border-bottom:0}
td+td,th+th{border-left:1px solid var(--line)}
td:first-child{font-weight:700}
.pill{display:inline-block;background:#e9f0d8;border:1px solid var(--ink);padding:2px 8px;font-size:10px}

.download-list{border-top:1px solid var(--ink)}
.download-row{display:grid;grid-template-columns:90px 1fr 150px 170px;gap:24px;align-items:center;padding:25px 0;border-bottom:1px solid var(--ink)}
.download-row .os{font-size:11px;letter-spacing:.1em;color:var(--blue)}
.download-row h3{font-family:var(--serif);font-size:24px;margin:0 0 5px}
.download-row p{font-size:12px;color:var(--muted);margin:0}
.download-row .size{font-size:11px;letter-spacing:.08em;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step{border-top:5px solid var(--blue);padding-top:20px}
.step:nth-child(2){border-color:var(--accent)}
.step:nth-child(3){border-color:var(--ink)}
.step .num{font-size:11px;letter-spacing:.1em;color:var(--muted)}
.step h3{font-family:var(--serif);font-size:22px;margin:8px 0 8px}
.step p{font-size:13px;color:var(--muted)}
.code{background:var(--ink);color:#f0ece2;padding:24px;font-family:Consolas,monospace;font-size:12px;line-height:1.8;overflow:auto;border-left:8px solid var(--accent)}

.timeline{border-top:1px solid var(--ink)}
.timeline article{display:grid;grid-template-columns:130px 1fr 1fr;gap:28px;padding:24px 0;border-bottom:1px solid var(--ink)}
.timeline time{font-family:var(--serif);font-size:18px;color:var(--accent)}
.timeline h3{font-family:var(--serif);font-size:22px;margin:0}
.timeline p{font-size:13px;color:var(--muted);margin:0}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.value{padding:24px;border:1px solid var(--ink);background:var(--white)}
.value:nth-child(2){background:var(--blue);color:#fff}
.value:nth-child(2) p{color:#dbe6ff}
.value .num{font-size:11px;letter-spacing:.1em;color:var(--accent)}
.value h3{font-family:var(--serif);font-size:24px;margin:42px 0 10px}
.value p{font-size:13px;color:var(--muted)}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:64px}
.contact h2{font-size:48px}
.contact p{color:var(--muted)}
.mail{font-size:20px;color:var(--blue);text-decoration:underline;text-underline-offset:5px}
.form{display:grid;gap:13px}
.form label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.form input,.form textarea{width:100%;background:var(--white);border:1px solid var(--ink);border-radius:0;padding:13px;color:var(--ink)}
.form textarea{min-height:110px;resize:vertical}
.form input:focus,.form textarea:focus{outline:3px solid rgba(38,103,255,.2)}
.form button{cursor:pointer}

.cta{margin:82px 0;background:var(--accent);color:#fff;padding:42px;display:flex;align-items:end;justify-content:space-between;gap:28px;border:1px solid var(--ink)}
.cta h2{font-family:var(--serif);font-size:48px;max-width:680px}
.cta p{margin:14px 0 0;max-width:540px}
.cta .btn{background:var(--white);color:var(--ink);border-color:var(--ink)}
footer{padding:44px 0 24px;background:var(--ink);color:#c9c8bf;font-size:12px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:42px;padding-bottom:40px}
.footer-grid h4{color:#fff;font-size:10px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 15px}
.footer-grid a{display:block;margin:8px 0}
.footer-brand{color:#fff;font-family:var(--serif);font-size:38px;font-weight:800;letter-spacing:-.07em}
.footer-bottom{border-top:1px solid #50514c;padding-top:20px;display:flex;justify-content:space-between;gap:18px}
.footer-note{margin:0}
.footer-note a{color:#e9f0d8;text-decoration:underline;text-underline-offset:3px}

@media(max-width:900px){
  .nav{grid-template-columns:1fr auto}
  .nav-note{display:none}
  .nav-links{gap:18px}
  .hero-intro,.split,.contact{grid-template-columns:1fr}
  .hero-intro .right{justify-content:flex-start}
  .section-head{grid-template-columns:150px 1fr}
  .split{gap:40px}
  .download-row{grid-template-columns:70px 1fr 130px}
  .download-row .btn{grid-column:2/-1;justify-self:start}
}
@media(max-width:640px){
  .wrap{width:calc(100% - 34px)}
  .nav{grid-template-columns:1fr;padding:20px 0;gap:18px}
  .nav-links{justify-content:space-between;gap:8px;font-size:11px}
  .brand{font-size:34px}
  .hero{padding-top:38px}
  h1{font-size:52px}
  .hero-intro{gap:22px;margin-top:30px}
  .hero-intro p{font-size:15px}
  .section{padding:58px 0}
  .section-head{grid-template-columns:1fr;gap:15px;margin-bottom:28px}
  .page-hero{padding:42px 0}
  .page-title{font-size:48px}
  .cards,.feature-grid,.steps,.values{grid-template-columns:1fr}
  .card{min-height:auto}
  .card h3{margin-top:32px}
  .split h2,.contact h2{font-size:36px}
  .download-row{grid-template-columns:1fr 1fr;gap:12px}
  .download-row>div:nth-child(2){grid-column:1/-1;grid-row:1}
  .download-row .os{grid-row:2}
  .download-row .size{grid-row:2;text-align:right}
  .download-row .btn{grid-column:1/-1}
  .timeline article{grid-template-columns:75px 1fr;gap:12px}
  .timeline article p{grid-column:2}
  .cta{margin:58px 0;padding:26px;display:block}
  .cta h2{font-size:36px}
  .cta .btn{margin-top:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}