:root{
  --bg:#f6f8fb;
  --surface:#ffffff;
  --surface-2:#eef4f7;
  --text:#17212b;
  --muted:#667482;
  --primary:#0f766e;
  --primary-dark:#0b5f59;
  --accent:#d8f3dc;
  --line:#dce4ea;
  --success:#13795b;
  --warning:#b7791f;
  --danger:#b42318;
  --shadow:0 18px 45px rgba(24, 45, 65, .10);
  --radius:18px;
  --radius-sm:12px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select{font:inherit}
.container{width:min(var(--max),calc(100% - 36px));margin-inline:auto}
.section{padding:82px 0}
.section-sm{padding:54px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-weight:800;font-size:.82rem;letter-spacing:.09em;text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);border-radius:10px}
h1,h2,h3{line-height:1.12;margin:0 0 14px}
h1{font-size:clamp(2.45rem,5vw,5rem);letter-spacing:-.055em}
h2{font-size:clamp(2rem,3.5vw,3.35rem);letter-spacing:-.04em}
h3{font-size:1.18rem}
p{margin:0 0 16px}
.muted{color:var(--muted)}
.center{text-align:center}
.max-720{max-width:720px}
.mx-auto{margin-inline:auto}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:0 10px 25px rgba(21,43,58,.04);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);transition:.25s ease}
.icon{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;background:var(--surface-2);color:var(--primary);
  font-size:1.25rem;font-weight:900;margin-bottom:18px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 20px;border:1px solid transparent;border-radius:12px;
  font-weight:800;cursor:pointer;transition:.2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-light{background:#fff;border-color:var(--line)}
.btn-light:hover{border-color:#b7c7d2}
.header{
  position:sticky;top:0;z-index:1000;
  background:rgba(246,248,251,.88);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(220,228,234,.85);
}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.02em}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(145deg,var(--primary),#16a085);
  color:#fff;display:grid;place-items:center;font-weight:900;
}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{font-size:.95rem;font-weight:700;color:#42515e}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.menu-btn{
  display:none;border:0;background:transparent;width:44px;height:44px;
  border-radius:10px;cursor:pointer;font-size:1.4rem;
}
.hero{
  position:relative;overflow:hidden;padding:92px 0 70px;
  background:
    radial-gradient(circle at 88% 15%, rgba(15,118,110,.16), transparent 30%),
    radial-gradient(circle at 10% 70%, rgba(216,243,220,.7), transparent 36%);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero p{font-size:1.08rem;color:#52616d;max-width:680px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-panel{
  background:#0f2f33;color:#fff;border-radius:28px;padding:30px;
  box-shadow:0 28px 70px rgba(15,47,51,.24);
}
.hero-panel .metric{padding:17px 0;border-bottom:1px solid rgba(255,255,255,.13)}
.hero-panel .metric:last-child{border-bottom:0}
.metric-label{color:#b7d5d4;font-size:.85rem}
.metric-value{font-size:1.65rem;font-weight:900;letter-spacing:-.03em}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;padding:8px 12px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.13);
  border-radius:999px;font-size:.8rem;margin-bottom:22px;
}
.feature-strip{
  margin-top:-28px;position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
}
.feature-strip .item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;
  display:flex;align-items:center;gap:13px;box-shadow:0 10px 28px rgba(23,33,43,.05);
}
.feature-strip b{display:block}
.topic-link{display:flex;justify-content:space-between;gap:14px;align-items:center}
.topic-link span:last-child{color:var(--primary);font-weight:900}
.callout{
  background:linear-gradient(145deg,#0c5d57,#103b44);
  color:#fff;border-radius:26px;padding:44px;
}
.callout p{color:#c7dddd}
.steps{counter-reset:steps}
.step{
  position:relative;padding:4px 0 4px 58px;min-height:52px
}
.step::before{
  counter-increment:steps;content:counter(steps);
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;
  background:var(--surface-2);color:var(--primary);display:grid;place-items:center;font-weight:900;
}
.notice{
  padding:16px 18px;border:1px solid #c9dedc;background:#eef8f7;border-radius:13px;color:#285a56
}
.page-hero{
  padding:72px 0 54px;
  background:linear-gradient(180deg,#edf5f4,transparent);
}
.page-hero p{max-width:740px;color:var(--muted);font-size:1.05rem}
.prose{max-width:850px}
.prose h2{font-size:1.8rem;margin-top:38px}
.prose h3{margin-top:28px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin-bottom:8px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}
.tool-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.9rem;font-weight:800}
.field input,.field select{
  height:48px;border:1px solid #cbd6de;border-radius:11px;padding:0 13px;background:#fff;color:var(--text);
}
.field input:focus,.field select:focus{outline:3px solid rgba(15,118,110,.12);border-color:var(--primary)}
.result{
  margin-top:20px;padding:20px;border-radius:14px;background:#f0f7f6;border:1px solid #cfe5e2
}
.result strong{font-size:1.5rem;color:var(--primary)}
.progress{
  height:11px;border-radius:999px;background:#e6edf1;overflow:hidden;margin:10px 0 3px;
}
.progress > span{display:block;height:100%;background:var(--primary);width:0;transition:.35s ease}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden
}
.faq-question{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  text-align:left;border:0;background:#fff;padding:18px 20px;font-weight:850;cursor:pointer
}
.faq-answer{display:none;padding:0 20px 18px;color:var(--muted)}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
table{width:100%;border-collapse:collapse;min-width:680px}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
th{background:#f3f7f9;font-size:.88rem}
.footer{
  padding:48px 0 28px;background:#112d31;color:#e8f2f2;margin-top:40px
}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:30px}
.footer a{color:#c5d9d8}
.footer a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:22px;
  color:#a9c0bf;font-size:.88rem
}
.tag{
  display:inline-flex;padding:6px 10px;border-radius:999px;background:#edf7f5;color:var(--primary);
  font-size:.78rem;font-weight:800
}
.article-card{display:flex;flex-direction:column;gap:12px}
.article-card .meta{font-size:.82rem;color:var(--muted)}
.kpi{font-size:2rem;font-weight:900;letter-spacing:-.04em}
hr.sep{border:0;border-top:1px solid var(--line);margin:32px 0}
.list-check{list-style:none;padding:0}
.list-check li{position:relative;padding-left:28px;margin-bottom:10px}
.list-check li::before{content:"✓";position:absolute;left:0;color:var(--success);font-weight:900}
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr}
  .feature-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{
    display:none;position:absolute;top:76px;left:18px;right:18px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:16px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start
  }
  .nav-links.open{display:flex}
  .menu-btn{display:block}
}
@media (max-width:640px){
  .section{padding:62px 0}
  .container{width:min(var(--max),calc(100% - 26px))}
  .grid-2,.grid-3,.grid-4,.form-grid{grid-template-columns:1fr}
  .hero{padding-top:64px}
  .hero-panel{padding:24px;border-radius:20px}
  .callout{padding:28px}
  .footer-grid{grid-template-columns:1fr}
  .nav .btn{display:none}
  h1{font-size:clamp(2.3rem,13vw,3.5rem)}
}